CONNECTION COMPONENT, HOUSING ASSEMBLY, AND AIR HANDLING UNIT

Description

CROSS-REFERENCE TO RELATED APPLICATION

The present application claims priority to Chinese patent application No. 202311172342.7, filed on Sep. 11, 2023, entitled “CONNECTION COMPONENT, HOUSING ASSEMBLY, AND AIR HANDLING UNIT,” the entire contents of which are incorporated herein by reference.

TECHNICAL FIELD

The present disclosure relates to the technical field of connection components, and in particular, to a connection component, a housing assembly, and an air handling unit.

BACKGROUND

To facilitate production, transportation and installation, an air handling unit (such as an air conditioning indoor cabinet unit) can be divided into a plurality of independent modules according to their functions. On the one hand the modules can be produced at the same time for higher production efficiency, on the other hand the air handling unit can be broken down into a plurality of small modules for easier transportation. In addition, in an operational site, if the user has a large vertical installation space, the modules can be stacked vertically to form a complete machine; if the user does not have enough vertical installation space, an air duct can be used to connect the corresponding modules horizontally, for saving vertical installation space.

The modules are connected by a connection component. The connection component, on the one hand, can connect two modules, and on the other hand, can seal a gap between the two modules, for better overall sealing effect of the air handling unit. However, the existing connection component only considers the application scenario where the modules are stacked, and does not consider the application scenario where the modules are not stacked for use, resulting in low adaptability of the connection component.

SUMMARY

The present disclosure aims to improve the adaptability of the connection component by proposing a connection component, a housing assembly, and an air handling unit.

In order to at least partially achieve the above object, the present disclosure proposes a connection component for an air handling unit, where the air handling unit includes a first housing and a second housing, and the connection component includes a first frame, a second frame and a limit member.

The first frame is annularly arranged around a first axis, and has a first end and a second end oppositely arranged in a direction parallel to the first axis, the first end is adapted to be connected to one end of the first housing, and the second end is provided with a first limit groove.

The second frame is annularly arranged around a second axis, and has a third end and a fourth end oppositely arranged in a direction parallel to the second axis, the third end is adapted to be connected to one end of the second housing, and the fourth end is provided with a second limit groove and adapted to be connected to the second end.

The limit member is adapted to position the first frame and the second frame by extending one end into the first limit groove and the other end into the second limit groove while the second end is connected to the fourth end.

In some embodiments, the connection component further includes a connection member, where the limit member includes a first connection structure, the second end is provided with a second connection structure, and the connection member is connected to the first connection structure and the second connection structure.

In some embodiments, the first frame includes a first annular frame and a first boss, an inner sidewall of the first annular frame, close to the first axis, is connected to the first boss, and the first limit groove is at least partially provided on the first boss;

• • and/or,
  • the second frame includes a second annular frame and a second boss, an inner sidewall of the second annular frame, close to the second axis, is connected to the second boss, and the second limit groove is at least partially provided on the second boss.

In some embodiments, the first limit groove is arranged at a side of the first frame, and a portion of the limit member, adapted to extend into the first limit groove, is in a straight strip shape; or the first limit groove is arranged at a corner end of the first frame, and a portion of the limit member, adapted to extend into the first limit groove, is in a curved shape;

• • and/or,
  • the second limit groove is arranged at a side of the second frame, and a portion of the limit member, adapted to extend into the second limit groove, is in a straight strip shape of, or the second limit groove is arranged at a corner end of the second frame, and a portion of the limit member, adapted to extend into the second limit groove, is in a curved shape.

In some embodiments, the first frame includes a first main body and a first retaining bar distributed circumferentially along the first axis, and two ends of the first retaining bar are detachably connected in one-to-one correspondence to two ends of the first main body along the circumferential direction of the first axis.

The second frame includes a second main body and a second retaining bar distributed circumferentially along the second axis, two ends of the second retaining bar are detachably connected in one-to-one correspondence to two ends of the second main body along the circumferential direction of the second axis, and the second retaining bar is adapted to abut against the first retaining bar when the second end is connected to the fourth end.

In some embodiments, the first main body is provided with a third limit groove at each of two ends of the first main body along the circumferential direction of the first axis, two third limit grooves extend through the second end, and two ends of the first retaining bar along the circumferential direction of the first axis are provided in the two third limit grooves in one-to-one correspondence; and

• • the second main body is provided with a fourth limit groove at each of two ends along the circumferential direction of the second axis, two fourth limit grooves extend through the fourth end, and two ends of second retaining bar along the circumferential direction of the second axis are provided in one-to-one correspondence in the two fourth limit grooves.

In some embodiments, the first main body includes a first rod opposite to the first retaining bar, the first rod includes a first section, a first middle section, and a second section; one end of the first middle section is detachably connected to the first section, and the other end is detachably connected to the second section; and

• • the second main body includes a second rod opposite to the second retaining bar, the second rod includes a third section, a second middle section, and a fourth section; one end of the second middle section is detachably connected to the third section, and the other end is detachably connected to the fourth section.

In some embodiments, the first frame further includes a first adaptation block, and a third retaining bar longer than the first retaining bar, the first main body includes the first rod opposite to the first retaining bar, and the first rod includes the first section and the second section; the second frame further includes a second adaptation block and fourth retaining bar longer than the second retaining bar, the second main body includes the second rod opposite to the second retaining bar, and the second rod includes the third section and the fourth section; and

• • the connection component has a first working state and a second working state: in the first working state, the first main body is connected to the first retaining bar, the first section abuts against the second sections, the second main body is connected to the second retaining bar, and the third section abuts against the fourth section; and in the second working state, the first main body is connected to the third retaining bar, the first adaptation block is connected between the first section and the second section, the second main body is connected to the fourth retaining bar, and the second adaptation block is connected between the third section and the fourth section.

In some embodiments, the first end is provided with a first rib having a thickness direction perpendicular to the first axis, and the first rib is adapted to abut against the first housing;

• • and/or,
  • the second end is provided with a second rib, having a thickness direction perpendicular to the second axis, and the second rib is adapted to abut against the second housing.

In some embodiments, the second end is provided with a first annular groove arranged around the first axis, the fourth end is provided with a second annular groove arranged around the second axis, and the first annular groove and the second annular groove are configured to communicate with each other while the second end is connected to the fourth end; and

• • the connection component further includes a fill member adapted to be filled in a space formed together by the first annular groove and the second annular groove, while the second end is connected to the fourth end.

In some embodiments, the connection component has a third working state and a fourth working state.

In the third working state, the first end is connected to the first housing, the second end is connected to the fourth end, the third end is connected to the second housing, and one end of the limit member extends into the first limit groove, and the other end of the limit member extends into the second limit groove.

In the fourth working state, the first end is connected to the first housing, the third end is connected to the second housing, the first frame is separated from the second frame, and one end of the limit member extends into the first limit groove or is separated from both the first frame and the second frame.

In an embodiment according to a second aspect of the present disclosure provided is a connection component for an air handling unit, where the air handling unit includes a first housing and a second housing, the connection component is annularly arranged around a third axis, in a direction parallel to the third axis one end of the connection component is adapted to be connected to one end of the first housing, and the other end of the connection component is adapted to be connected to one end of the second housing. The connection component includes:

• • a first body arranged around the third axis, and including a first connection end and a second connection end that are oppositely arranged circumferentially along the third axis;
  • a second body arranged around the third axis, and including a third connection end opposite to the first connection end and a fourth connection end opposite to the second connection end;
  • a first connection block, of which one end is detachably connected to the first connection end, and the other end is detachably connected to the third connection end; and
  • a second connection block, of which one end is detachably connected to the second connection end, and the other end is detachably connected to the fourth connection end, where the first connection block and the second connection block are located on opposite sides of the connection component in a direction perpendicular to the third axis, respectively.

In some embodiments, circumferentially along the third axis, the first connection block has a length equal to a length of the second connection block, the first connection end is adapted to be connected to the third connection end, and the second connection end is adapted to be connected to the fourth connection end.

In some embodiments, along the circumferential direction of the third axis, the first connection block has a length of less than a length of the second connection block, and the first connection end is adapted to be connected to the third connection end; and

• • the connection component further includes a third connection block, of which one end s adapted to be connected to the second connection end, and the other end is adapted to be connected to the fourth connection end; along the circumferential direction of the third axis, a difference between a length of the second connection block and a length of the third connection block is equal to a length of the first connection block.

In some embodiments, the connection component is in a rectangular ring shape of and includes four side rods, one of which is the second connection block, and the side rod opposite to the second connection block includes the first connection block.

In some embodiments, the connection component further includes a fourth connection block and a fifth connection block, where one end of the fourth connection block is adapted to be detachably connected to the first connection block, and the other end of the fourth connection block is adapted to be detachably connected to the third connection end; one end of the fifth connection block is adapted to be detachably connected to the second connection end, and the other end of the fifth connection block is adapted to be detachably connected to the fourth connection end; along the circumferential direction of the third axis, a difference between a length of the fourth connection block and a length of the first connection block is equal to a difference between a length of the fifth connection block and a length of the second connection block.

In some embodiments, the connection component includes a first frame and second frame.

The first frame is annularly arranged around the third axis, and has a first end and a second end that are oppositely arranged in a direction parallel to the third axis, and the first end is adapted to be connected to one end of the first housing.

The second frame is annularly arranged around the third axis and has a third end and a fourth end that are oppositely arranged in a direction parallel to the third axis, the third end is adapted to be connected to one end of the second housing, and the fourth end is connected to the second end.

Each of the first body, the second body, the first connection block and the second connection block includes a first portion and a second portion that are distributed in a direction parallel to the third axis, the first frame includes the first portions of the first body, the second body, the first connection block and the second connection block, and the second frame includes the second portions of the first body, the second body, the first connection block and the second connection block.

In some embodiments, the second end is provided with a first limit groove, the fourth end is provided with a second limit groove, and the connection component further includes a limit member of which one end extends into the first limit groove and the other end extends into the second limit groove.

In an embodiment according to a third aspect of the present disclosure provided is a housing assembly for an air handling unit, the housing assembly includes:

• • the connection component described above;
  • the first housing configured to accommodate a first functional component; and
  • the second housing configured to accommodate a second functional component;
  • where one end of the connection component is connected to the first housing, and the other end of the connection component is connected to the second housing.

In an embodiment according to a fourth aspect of the present disclosure provided is an air handling unit, including:

• • the above housing assembly;
  • the first functional component provided in the first housing; and
  • the second functional component provided in the second housing.

BRIEF DESCRIPTION OF DRAWINGS

In order to more clearly illustrate the embodiments of the present disclosure or the technical schemes in the related art, some drawings to be used in the description of the embodiments or the related art will be briefly introduced below. Obviously, the drawings described below merely illustrate some embodiments of the present disclosure, and for those of ordinary skill in the art, other drawings can also be obtained based on the structures illustrated in these drawings without creative work.

FIG. 1 is a schematic diagram of an air handling unit in an embodiment of the present disclosure;

FIG. 2 is a schematic diagram of an connection component in an embodiment of FIG. 1 of the present disclosure, where the second end of the first frame is connected to the fourth end of the second frame;

FIG. 3 is a first schematic exploded diagram of the connection component in the embodiment of FIG. 1 of the present disclosure;

FIG. 4 is a schematic partial enlarged diagram of A in FIG. 3;

FIG. 5 is a schematic partial enlarged diagram of B in FIG. 3;

FIG. 6 is a schematic diagram of a second exploded view of the connection component in the embodiment of FIG. 1 of the present disclosure from a first perspective;

FIG. 7 is a schematic diagram of the second exploded view of the connection component in the embodiment of FIG. 1 of the present disclosure from a second perspective;

FIG. 8 is a third schematic exploded diagram of the connection component in the embodiment of FIG. 1 of the present disclosure;

FIG. 9 is a schematic partial enlarged diagram of C in FIG. 8;

FIG. 10 is a cross-sectional diagram of the connection component in the embodiment of FIG. 1 of the present disclosure;

FIG. 11 is a schematic partial enlarged diagram of D in FIG. 10;

FIG. 12 is a cross-sectional diagram of the housing assembly in the embodiment of FIG. 1 of the present disclosure;

FIG. 13 is a schematic partial enlarged diagram of E in FIG. 12;

FIG. 14 is a cross-sectional diagram of a housing assembly in another embodiment of the present disclosure;

FIG. 15 is a cross-sectional diagram of the housing assembly in the embodiment of FIG. 1 of the present disclosure;

FIG. 16 is a cross-sectional diagram of a housing assembly in another embodiment of the present disclosure;

FIG. 17 is a cross-sectional diagram of a housing assembly in another embodiment of the present disclosure;

FIG. 18 is a schematic diagram of a connection component in another embodiment of the present disclosure;

FIG. 19 is a schematic diagram of a connection component in another embodiment of the present disclosure;

FIG. 20 is a schematic diagram of the connection component in the embodiment of FIG. 19 of the present disclosure, where the first connection block and the second connection block are removed;

FIG. 21 is a schematic diagram of a connection component in another embodiment of the present disclosure;

FIG. 22 is a schematic diagram of a connection component in another embodiment of the present disclosure;

FIG. 23 is a schematic diagram of a connection component in another embodiment of the present disclosure; and

FIG. 24 is a schematic diagram of a connection component in another embodiment of the present disclosure.

LIST OF REFERENCE NUMERALS

• • air handling unit 1;
  • housing assembly 10;
  • connection component 100;
  • first frame 110; first end 111; first rib 1111; second end 112; first limit groove 1121; first annular groove 1122; second connection structure 1123; first annular frame 113; first boss 114; first main body 115; third limit groove 1151; first rod 1152; first section 11521; second section 11522; first middle section 11523; first retaining bar 1161; third retaining bar 1162; fifth retaining bar 1163; first adaptation block 1171; first stop 11711; third adaptation block 1172;
  • second frame 120; third end 121; second rib 1211; fourth end 122; second limit groove 1221; second annular groove 1222; second annular frame 123; second boss 124; second main body 125; fourth limit groove 1251; second rod 1252; third section 12521; fourth section 12522; second middle section 12523; second retaining bar 1261; fourth retaining bar 1262; sixth retaining bar 1263; second adaptation block 1271; second stop 12711; fourth adaptation block 1272; limit member 130; first connection structure 131;
  • fill member 140;
  • first body 151; first connection end 1511; second connection end 1512; second body 152; third connection end 1521; fourth connection end 1522;
  • first connection block 161; second connection block 162; third connection block 163; fourth connection block 164; fifth connection block 165;
  • first housing 200;
  • second housing 300;
  • air guide module 20;
  • heat exchange module 30;
  • purification module 40;
  • air duct 50;
  • first axis a;
  • second axis b;
  • third axis c.

The realization of the purpose, functional features and advantages of the present disclosure will be further described by the embodiments with reference to the accompanying drawings.

DETAILED DESCRIPTION

The technical schemes in some embodiments of the present disclosure will be clearly and completely described below with reference to the accompanying drawings of some embodiments of the present disclosure. Obviously, the described embodiments are merely some, not all, of the embodiments of the present disclosure. Based on the embodiments in the present disclosure, all other embodiments obtained by those of ordinary skill in the art without making creative efforts fall within the scope of protection of the present disclosure.

In order to facilitate processing, transportation and installation, an air handling unit (such as an air-conditioning indoor cabinet unit) can be divided into a plurality of independent modules according to their functions. The modules can be transported separately and then assembled. During assembly, the modules are connected by means of a connection component. The connection component can, on the one hand, connect two modules, and on the other hand, seal a gap between the two modules, thereby improving the overall sealing effect of the air handling unit. When the modules are transported individually, the connection component can also form a cushion to protect the modules connected thereto. A connection component of the existing technology is an annular frame, which is arranged between two modules and respectively connected to the housings of the two modules.

However, the applicant found that, in the above solution, since the connection component is a separate frame, when the connection component is installed before the air handling unit is transported, no matter which module the connection component is attached to, there must be one module that does not have the connection component attached, which means that the module that does not have the connection component attached requires an additional protective structure to avoid damage during transportation. To this end, the applicant subsequently divided the connection component into two frames. During transportation, the two frames are connected to the ends of the two modules correspondingly. During assembly, the two frames are joined together. Specifically, one of the frames is provided with a protruding portion, and the other one is provided with a groove. After the two frames are assembled, the protruding portion cooperates with the groove to limit the position of the two frames, thereby realizing the connection of the two modules. In the above solution, each module can be connected to a frame, so that the modules can be well protected, and the connection of the modules can be facilitated at the same time. Then, the applicant subsequently found that, in the above solution, since the protruding portion protrudes from the frame, on the one hand, a corresponding depression needs to be provided on a cushion connected to the frame during transportation to allow the module to be laid flat. On the other hand, when the modules are not stacked to assembly, the protruding structure of the protruding portion may cause inconvenience in assembly (it is necessary to define an additional groove corresponding to the protruding portion on the air duct that matches the protruding portion), that is, the protruding structure of the protruding portion is more suitable for a connecting scenario in which the modules are stacked, but is less suitable for a use scenario in which the modules are not stacked.

In view of this, referring to FIGS. 1-24, specifically referring to FIGS. 1-18, the embodiments provide a connection component 100 for an air handling unit 1. The air handling unit 1 may be an air purifier, a humidifier, an air conditioner, or other apparatuses configured to process air. In the following the air handling unit 1 is taken as an air conditioner for illustration. For example, the air handling unit 1 can be divided into three modules based on functions, including a purification module 40, a heat exchange module 30, and an air guide module 20 (in other embodiments, it can also be divided into two modules or more than four modules), where the heat exchange module 30 can be connected to the purification module 40 at one end and the air guide module 20 at the other end.

The purification module 40 is configured to make air inlet and purify the introduced air, and the air purified by the purification module 40 is introduced into the heat exchange module 30. The heat exchange module 30 heats the air. When the air handling unit 1 is in a heating mode, the heat exchange module 30 heats the air; when the air handling unit 1 is in a cooling mode, the heat exchange module 30 cools the air. The heat exchange module 30 guides the heat-exchanged air to the air guide module 20. The air guide module 20 generates a driving force, which on the one hand enables external airflow to enter the air handling unit 1 through the purification module 40 and on the other hand enables the air in the air guide module 20 to be guided out. The air guide module 20 is also capable of controlling export parameters of the air. The export parameters may include an air export flow rate, an export time, an export direction, etc. The air guide module 20 can specifically control the export parameters of air by means of controlling the driving force of an air supply assembly and the swing direction of an air guide plate, etc.

Referring to FIGS. 1 and 14-16, in a first installation scenario, the purification module 40, the heat exchange module 30 and the air guide module 20 can be stacked along a straight line, and the heat exchange module 30 is located between the purification module 40 and the air guide module 20 (at this time, the air handling unit 1 can be arranged vertically or horizontally. The following description takes the air handling unit 1 being arranged vertically as an example. When the air handling unit 1 is arranged vertically, the purification module 40 can be located at the bottom, and the air guide module 20 may be located at the top). At this time, a connection component 100 is connected between the purification module 40 and the heat exchange module 30, and another connection component 100 is connected between the air guide module 20 and the heat exchange module 30. The following takes the connection component 100 between the air guide module 20 and the heat exchange module 30 as an example.

Referring to FIG. 17, in a second installation scenario, when the user's vertical installation space is not enough, an air duct 50 can be added (the air duct 50 can be the user's own device or a device provided by the manufacturer). The air duct 50 is located at a lower end of the air handling unit 1. The air duct 50 has two openings on an upper end surface thereof. The upper end of the air duct 50 is connected to the heat exchange module 30 and the air guide module 20 respectively, and the heat exchange module 30 and the air guide module 20 are communicated with the two openings. The external airflow flows down from the purification module 40 to the heat exchange module 30 and continues to flow down to the air duct 50. The airflow in the air duct 50 flows up to the air guide module 20 and is directed upward from the air guide module 20. In this scheme, the heat exchange module 30 and the air guide module 20 are arranged side by side laterally, thereby reducing the vertical arrangement space of the air handling unit 1. The existing connection component can only be adapted to the first installation scenario, and it is difficult to use the existing connection component in the second installation scenario.

Referring to FIGS. 1, 15 and 2-5, the air handling unit 1 in this embodiment includes a first housing 200 and a second housing 300. The first housing 200 and the second housing 300 can both be annular. When the connection component 100 is configured to connect the air guide module 20 and the heat exchange module 30, the first housing 200 can be a housing of the air guide module 20, and the second housing 300 can be a housing of the heat exchange module 30. The connection component 100 includes a first frame 110, a second frame 120, and a limit member 130.

Referring to FIGS. 2-4, the first frame 110 is adapted to be connected to one end of the first housing 200 (specifically, the first housing 200 is configured to be connected to one end of the second housing 300). The first frame 110 is in a shape of a ring arranged around a first axis a (while the first frame 110 is connected to the first housing 200, the first axis a can be a central axis of the first housing 200). The first frame 110 has a first end 111 and a second end 112 that are oppositely arranged in a direction parallel to the first axis a. The first end 111 of the first frame 110 is adapted to be connected to one end of the first housing 200. The connecting mode between the first end 111 and the first housing 200 depends on actual needs. The two can be snap-connected, interference-fit connected, threaded, glued, etc. The second end 112 of the first frame 110 is provided with a first limit groove 1121, and the second limit groove 1221 is configured to cooperate with the limit member 130.

The second frame 120 is adapted to be connected to one end of the second housing 300 (specifically, the second housing 300 is configured to be connected to one end of the first housing 200). The second frame 120 is in the shape of a ring arranged around a second axis b (while the second frame 120 is connected to the second housing 300, the second axis b can be a central axis of the second housing 300, and while the second frame 120 is connected to the first frame 110, the first axis a can be coincident with the second axis b). The second frame 120 has a third end 121 and a fourth end 122 that are oppositely arranged in a direction parallel to the second axis b. The third end 121 is adapted to be connected to one end of the second housing 300. The connecting mode between the third end 121 and the housing 300 depends on actual needs. The two can be snap-connected, interference-fit connected, threaded connected, glued, etc. The fourth end 122 is provided with a second limit groove 1221, and the fourth end 122 is adapted to be connected to the second end 112. After the fourth end 122 is connected to the second end 112, the second limit groove 1221 can be connected to the first limit groove 1221, and the second limit groove 1221 is adapted to cooperate with the limit member 130.

The limit member 130 is adapted to extend one end into the first limit groove 1121 and the other end into the second limit groove 1221 while the second end 112 is connected to the fourth end 122, so as to position the first frame 110 and the second frame 120. After one end of the limit member 130 extends into the first limit groove 1121 and the other end extends into the second limit groove 1221, it can be difficult for the first frame 110 and the second frame 120 to relatively move in the direction perpendicular to the first axis a or second axis b.

Referring to FIGS. 1 and 14-16, in the first installation scenario, the connection component 100 is provided between the air guide module 20 and the heat exchange module 30 (in other embodiments, it can also be provided between the heat exchange module 30 and the purification module 40). The first frame 110 is connected to the first housing 200, the second frame 120 is connected to the second housing 300, and the limit member 130 is provided between the first frame 110 and the second frame 120. One end of the limit member 130 extends into the first limit groove 1121, and the other end extends into the second limit groove 1221. In this scenario, since the connection component 100 is divided into two main parts, including the first frame 110 and the second frame 120 which are correspondingly connected to the first housing 200 and the second housing 300, compared with a structure that the existing connection component is a single part and is provided between the first housing and the second housing, according to the connection component 100 in this embodiment, the first frame 110 and the second frame 120 can be first individually and correspondingly assembled to the first housing 200 and the second housing 300 during the assembly and transportation processes of the two modules of the air handling unit 1, which makes the subsequent assembly of the two modules much easier.

Referring to FIG. 17, in the second installation scenario, the air handling unit 1 is connected to the air duct 50, the air guide module 20 and the heat exchange module 30 are both connected to and above the air duct 50, and the air duct 50 is configured to communicate the air guide module 20 and heat exchange module 30. The first frame 110 is connected to one end of the first housing 200 for cooperating with the second housing 300 (in the structure shown in the figure, the first frame 110 is connected to the lower end of the first housing 200). The second frame 120 is connected to one end of the second housing 300 for cooperating with the first housing 200 (in the structure shown in the figure, the second frame 120 is connected to the lower end of the second housing 300). The second end 112 of the first frame 110 is connected to the air duct 50, and the second end 112 of the first frame 110 can be snap-connected, glued, threaded or welded with the air duct 50. The fourth end 122 of the second frame 120 is connected to the air duct 50, and the fourth end 122 of the second frame 120 can be snap-connected, glued, threaded or welded to the air duct 50. In the connection component 100 in this embodiment, since the limit component is provided separately, in this installation scenario, the limit member 130 can be separated from the first frame 110 and the second frame 120. Compared with the existing structure that the first frame is provided with a protruding portion, the second frame is provided with a groove, and the protruding portion of the first frame cooperates with the groove on the second frame, in the scheme of this embodiment, while the limit member 130 is removed, both the first frame 110 and the second frame 120 can be better placed flatly on the upper end of the air duct 50, so as to facilitate the connection between the first frame 110 and the second frame 120 and the air duct 50. In the related art, due to the protruding structure of the protruding portion, it is difficult for the first frame to be placed flat on the air duct, and it is necessary to define an additional groove on the air duct to accommodate the protruding portion. The location of the groove also needs to be precisely positioned based on the location of the protruding portion, which is a complicated operation. In comparison, the connection component 100 in this embodiment can remove the limit member 130, which can be better adapted to the above installation scenario.

Since the first frame 110 and the second frame 120 are connected in different ways in different installation scenarios, for ease of description, the modules of the air handling unit 1 are all stacked along a straight line and are stacked along a vertical straight line in the following. (In other embodiments, they can also be stacked along a horizontal straight line.) With this structure, the first frame 110 is connected to the second frame 120, and the limit member 130 is provided between the first frame 110 and the second frame 120 with one end extending into the first limit groove 1121 and the other end extending into the second limit groove 1221. Since the first axis a and the second axis b coincide with each other at this time, the first axis a is used as the positional reference throughout the following.

Referring to FIGS. 4-7, while inserted into the first limit groove 1121 and the second limit groove 1221, the limit member 130 can be connected to the first frame 110 and the second frame 120 in other ways. In some embodiments, the connection component 100 further includes a connection member (not shown in the figure), the limit member 130 includes a first connection structure 131, the second end 112 is provided with a second connection structure 1123, and the connection member is connected to the first connection structure 131 and the second connection structure 1123. In this scheme, the first connection structure 131 and the second connection structure 1123 are connected through the connection member, so that the limit member 130 is not only inserted into the second end 112 of the first frame 110, but the two are also connected in other ways, making the connection between the limit member 130 and the first frame 110 more stable. The specific structures of the first connection structure 131, the second connection structure 1123 and the connection member may be determined according to the specific connecting forms of the first frame 110, the limit member 130 and the connection member. Specifically, the limit member 130 can be snap-connected, interference-fit connected or threaded to the second end 112 of the first frame 110 For example, when the limit member 130 is threaded to the second end 112 of the first frame 110, the connection member may be, for example, a screw or a bolt, the first connection structure 131 and the second connection structure 1123 may both be threaded holes, and the connection member threadedly matches the above two threaded holes to realize the threaded connection between the limit member 130 and the first frame 110. In another embodiment, the limit member 130 can also be connected to the fourth end 122 of the second frame 120 (specifically, it can be a threaded connection), so that the limit member 130 can not only be configured to limit the relative positions of the first frame 110 and the second frame 120 in the direction perpendicular to the first axis a, but also be configured to limit the relative positions of the first frame 110 and the second frame 120 in the direction parallel to the first axis a.

In some embodiments, the connection member can also connect the limit member 130, the first frame 110 and the first housing 200 at the same time. For example, when the connection member threadedly connects the limit member 130, the first frame 110 and the first housing 200, the connection member may be a screw, and both the first connection structure 131 and the second connection structure 1123 may be through holes. The first housing 200 is provided with a threaded hole, and the connection member passes through the limit member 130 and the through hole on the first frame 110 to be threaded to the threaded hole on the first housing 200. In this scheme, the connection member connects the limit member 130 and the first frame 110 and can also connect the first frame 110 and the first housing 200 at the same time. When the first frame 110 and the first housing 200 are connected by the connection member only, the connecting efficiency between the connection component 100 and the first housing 200 can be increased; when the first frame 110 and the first housing 200 are connected in other ways, the connection between the first frame 110 and the first housing 200 can be enhanced in stability. In another embodiment, the connection member can also connect the second frame 120 and the second housing 300 at the same time, which will not be described again here.

The second connection structure 1123 can be located at any appropriate position on the first frame 110. Specifically, the second connection structure 1123 can be provided within the first limit groove 1121 or outside the first limit groove 1121. For example, when the first connection structure 131 is a through hole, the through hole can be defined in a bottom wall of the first limit groove 1121, or the through hole can be defined at a position beside the first limit groove 1121. The second connection structure 1123 is arranged correspondingly according to the position of the first connection structure 131. When the first connection structure 131 is provided in the first limit groove 1121, the second connection structure 1123 can be provided at the position of the limit member 130 for extending into the first limit groove 1121. When the first connection structure 131 is provided outside the first limit groove 1121, the second connection structure 1123 can be provided at a portion of the limit member 130 located outside the first limit groove 1121. At this time, another groove can be defined at the second end 112 of the first frame 110 for accommodating the second connection structure 1123, thereby avoiding positional interference between the second connection structure 1123 and the second frame 120.

The specific arrangement position of the first limit groove 1121 at the second end 112 depends on actual needs. Referring to FIGS. 2-5, in some embodiments, the first frame 110 includes a first annular frame 113 and a first boss 114. The first annular frame 113 is arranged around the first axis a, and is configured to connect the first housing 200 and the second frame 120. An inner sidewall of the first annular frame 113 close to the first axis a is connected to the first boss 114 (that is, the first boss 114 is a protrusion provided on the inner sidewall of the first annular frame 113 and protruding in a direction close to the first axis a), and the first limit groove 1121 is at least partially provided on the first boss 114. In other words, the first boss 114 at least partially belongs to the second end 112, and the first limit groove 1121 can be completely located on a portion of the first boss 114 that belongs to the second end 112, or a part of the first limit groove 1121 can be located on the portion of the first boss 114 that belongs to the second end 112, and the other part is located on the portion of the first annular frame 113 that belongs to the second end 112. In this solution, compared with a structure that the first limit groove 1121 is completely provided on the portion of the first annular frame 113 that belongs to the second end 112, the second end 112 of the first annular frame 113 has a smaller opening area, and a contact area between the first annular frame 113 and the second frame 120 is larger, making the connection between the first annular frame 113 and the second frame 120 more stable. Moreover, since the first boss 114 is provided on the inner sidewall of the first annular frame 113, compared with a structure that the first boss 114 is provided on an outer sidewall of the first annular frame 113, the connection component 100 has neater appearance, dust accumulation can be reduced, and maintenance is facilitated.

In some embodiments, the first boss 114 can be provided on a side of the first annular frame 113. Specifically, referring to FIGS. 2-5, the first annular frame 113 includes four sides, and the first boss 114 can be provided on any one of the sides of the first annular frame 113. In some embodiments, the first boss 114 can be provided at a corner position of the first annular frame 113. The first annular frame 113 includes four sides, which are connected end to end to form four corner positions. The first boss 114 can be provided at any one of the four corner positions. When the first limit groove 1121 is at least partially provided on the first boss 114, the shapes of the first limit groove 1121 and the limit member 130 can both be adapted to the shape of the first boss 114. Specifically, in some embodiments, the first boss 114 is provided on one of the sides of the first annular frame 113, the first limit groove 1121 is located on the side of the first frame 110, and the portion of the limit member 130 adapted to extend into the first limit groove 1121 is in the shape of a straight strip. In other embodiments, the first boss 114 can be provided at any of the four corner positions, the first limit groove 1121 is located at a corner end of the first frame 110, and the portion of the limit member 130 adapted to extend into the first limit groove 1121 is in a curved shape. Certainly, in another embodiment, when the first limit groove 1121 is completely provided on the first annular frame 113, the first limit groove 1121 can also be provided on the side or corner position of the first annular frame 113, and the portion of the limit member 130 provided in the first limit groove 1121 can also be in a straight strip shape or a curved shape correspondingly, which will not be described again here.

The specific arrangement position of the second limit groove 1221 at the fourth end 122 depends on actual needs. Referring to FIGS. 2-5, in some embodiments, the second frame 120 includes a second annular frame 123 and a second boss 124. The second annular frame 123 is arranged around the second axis b, and configured to connect the second housing 300 and the first frame 110. The inner sidewall of the second annular frame 123 close to the second axis b is connected to the second boss 124 (that is, the second boss 124 is a protrusion provided on the inner sidewall of the second annular frame 123 and protruding in the direction close to the second axis b), and the second limit groove 1221 is at least partially provided on the second boss 124. In other words, the second boss 124 at least partially belongs to the fourth end 122, and the second limit groove 1221 can be completely located on the portion of the second boss 124 that belongs to the fourth end 122, or a part of the second limit groove 1221 can be located on the portion of the second boss 124 that belongs to the fourth end 122, and the other part is located on the portion of the second annular frame 123 that belongs to the fourth end 122. In this scheme, compared with a structure that the second limit groove 1221 is completely provided on the portion of the second annular frame 123 that belongs to the fourth end 122, the fourth end 122 of the second annular frame 123 has a smaller opening area, and a contact area between the second annular frame 123 and the first frame 110 is larger, making the connection between the second annular frame 123 and the first frame 110 more stable. Moreover, since the second boss 124 is provided on the inner sidewall of the second annular frame 123, compared with a structure that the second boss 124 is provided on the outer sidewall of the second annular frame 123, the appearance of the connection component 100 is neater, dust accumulation can be reduced, and maintenance is facilitated.

In some embodiments, the second boss 124 can be provided on a side of the second annular frame 123. Specifically, referring to FIGS. 2-5, the second annular frame 123 includes four sides, and the second boss 124 can be provided on any one of the sides of the second annular frame 123. In other embodiments, the second boss 124 can be provided at a corner position of the second annular frame 123. The second annular frame 123 includes four sides, which are connected end to end to form four corner positions. The second boss 124 can be provided at any one of the four corner positions. When the second limit groove 1221 is at least partially provided on the second boss 124, the shapes of the second limit groove 1221 and the limit member 130 can be adapted to the shape of the second boss 124. Specifically, in some embodiments, the second boss 124 is provided on one of the sides of the second annular frame 123, the second limit groove 1221 is located on the side of the second frame 120, and the portion of the limit member 130 adapted to extend into the second limit groove 1221 is in the shape of a straight strip. In other embodiments, the second boss 124 can be provided at any one of the four corner positions, the second limit groove 1221 is located at the corner end of the second frame 120, and the portion of the limit member 130 adapted to extend into the second limit groove 1221 is in a curved shape. Certainly, in other embodiments, when the second limit groove 1221 is completely provided on the second annular frame 123, the second limit groove 1221 can also be provided at the side or corner position of the second annular frame 123, and the portion of the limit member 130 provided in the second limit groove 1221 can also be in a straight strip shape or a curved shape correspondingly, which will not be described again here.

Referring to FIGS. 6-7 and 14-15, in some embodiments, the first frame 110 includes a first main body 115 and a first retaining bar 1161 that are distributed along the circumferential direction of the first axis a. Along the circumferential direction of the first axis a, two ends of the first retaining bar 1161 are detachably connected in one-to-one correspondence to two ends of the first main body 115. Specifically, the first main body 115 is provided with a third limit groove 1151 at each of the two ends thereof along the circumferential direction of the first axis a, two third limit grooves 1151 extend through the second end 112, and two ends of the first retaining bar 1161 along the circumferential direction of the first axis a are provided in one-to-one correspondence in the two third limit grooves 1151. In this solution, the first frame 110 can be assembled from at least two parts. Compared with the first frame 110 being integrally processed and formed, the mold size is smaller and the processing difficulty is lower. Moreover, since the first retaining bar 1161 and the first main body 115 are connected together rather than integrally formed, the first retaining bar 1161 and the first main body 115 can be formed and processed with two different materials, where the first main body 115 can be plastic, for more cost-effective molding. The first retaining bar 1161 can be a metal part, for higher structural strength and longer service life. When installed at a front end of the air handling unit 1, the first retaining bar 1161 is less likely to degrade the aesthetics of the exterior surface of the air handling unit 1 due to aging. For example, when the first frame 110 is in the shape of a rectangular ring, the first frame 110 may include four sides, where the first retaining bar 1161 may be one of the sides of the first frame 110, and the first main body 115 may be whole consisting of the other three sides of the first frame 110.

It should be noted that the structural division standard of the aforementioned first annular frame 113 and the first boss 114 are different from that of the first main body 115 and the first retaining bar 1161. The first main body 115 is a portion of the first frame 110 excluding the first retaining bar 1161, and the first annular frame 113 is a portion of the first frame 110 excluding the first boss 114. When the first boss 114 is provided on the first retaining bar 1161, the first annular frame 113 includes a portion of the first retaining bar 1161 excluding the first boss 114, and the first main body 115.

Referring to FIGS. 6-7 and 14-15, the second frame 120 includes a second main body 125 and second retaining bar 1261 that are distributed along the circumferential direction of the first axis a. Along the circumferential direction of the first axis a, two ends of the second retaining bar 1261 are connected to two ends of the second main body 125, respectively. Specifically, the second main body 125 is provided with fourth limit grooves 1251 at two ends along the circumferential direction of the second axis b, both the fourth limit grooves 1251 extend through the fourth end 122, two ends of each second retaining bar 1261 along the circumferential direction of the second axis b are provided in one-to-one correspondence in the two fourth limit grooves 1251, and the second retaining bar 1261 are adapted to abut against the first retaining bar 1161. In this scheme, the second frame 120 can be assembled from at least two parts. Compared with the second frame 120 being integrally processed and formed, the mold size is smaller and the processing difficulty is lower. Moreover, since the second retaining bar 1261 and the second main body 125 are assembled together rather than integrally formed, the second retaining bar 1261 and the second main body 125 can be formed and processed with two different materials, where the second main body 125 can be plastic, for more cost-effective molding. The second retaining bar 1261 can be a metal part, for higher structural strength and longer service life. When installed at the front end of the air handling unit 1, the second retaining bar 1261 is less likely to degrade the aesthetics of the exterior surface of the air handling unit 1 due to aging. For example, when the second frame 120 is in the shape of a rectangular ring, the second frame 120 may include four sides, where the second retaining bar 1261 may be one of the sides of the second frame 120, and the second main body 125 is a whole consisting of the other three sides of the second frame 120.

• • to satisfy different needs, the air handling unit 1 can have different sizes. In order to reduce costs, the air handling unit 1 may be sized in only one direction, thereby reducing the number of parts of the air handling unit 1 whose size changes. For example, to satisfy different refrigeration requirements, air handling units 1 may vary in powers, and the air handling units 1 with varied powers may have different room sizes. For the air handling units 1 with a rectangular cross-section, the vertical height dimensions and the front and rear longitudinal dimensions of the air handling units 1 of different sizes can be kept unchanged, while the left and right lateral dimensions of the air handling units 1 can be changed. That is, a small-sized air handling unit 1 has small left and right lateral dimensions, a medium-sized air handling unit 1 has medium left and right lateral dimensions, a large-sized air handling unit 1 has large left and right lateral dimensions, and the other dimensions of the three are the same.

To adapt to the dimensional changes of the above air handling unit 1, in some embodiments, a plurality of connection components 100 with different shapes may be provided correspondingly. In other embodiments, in order to reduce the molding cost, adaptation blocks can also be provided to allow the connection components 100 of a same set to be adapted to air handling units 1 of different sizes at the same time. Specifically, referring to FIGS. 6-7 and 14-15, the first frame 110 also includes a first adaptation block 1171 and a third retaining bar 1162 longer than the first retaining bar 1161. The first main body 115 includes a first rod 1152 opposite to the first retaining bar 1161. The first rod 1152 includes a first section 11521 and a second section 11522, that is, the first rod 1152 is consisted of two portions that can be separated from each other. The second frame 120 also includes a second adaptation block 1271 and a fourth retaining bar 1262 longer than the second retaining bar 1261. The second main body 125 includes a second rod 1252 opposite to the second retaining bar 1261. The rod 1252 includes a third section 12521 and a fourth section 12522, that is, the second rod 1252 is consisted of two portions that can be separated from each other.

The connection component 100 has a first working state and a second working state. Referring to FIGS. 6-7 and 14-15, in the first working state, the first main body 115 is connected to the first retaining bar 1161, the first section 11521 abuts against the second sections 11522, the second main body 125 is connected to the second retaining bar 1261, and the third section 12521 abut against the fourth section 12522. In this scheme, the connection component 100 can be adapted to a small-sized air handling unit 1. In the second working state, the first main body 115 is connected to the third retaining bar 1162, the first adaptation block 1171 is connected between the first section 11521 and the second section 11522, the second main body 125 is connected to the fourth retaining bar 1262, and the second adaptation block 1271 is connected between the third section 12521 and the fourth section 12522. In this working state, a difference between a length of the third retaining bar 1162 and a length of the first retaining bar 1161 is equal to a length of the first adaptation block 1171, and a difference between a length of the fourth retaining bar 1262 and a length of the second retaining bar 1261 is equal to a length of the second adaptation block 1271. In this scheme, the connection component 100 can be adapted to a medium-sized air handling unit 1.

Referring to FIGS. 6-7 and 16, the connection component 100 may also have other working states to adapt to air handling units 1 of other sizes. In a working state, the first frame 110 may also include a fifth retaining bar 1163, which are longer than the third retaining bar 1162. The first frame 110 may further include a third adaptation block 1172, which is longer than the first adaptation block 1171. The second frame 120 may further include a sixth retaining bar 1263, which are longer than the fourth retaining bar 1262. The second frame 120 may also include a fourth adaptation block 1272, which is longer than the second adaptation block 1271. In this working state of the connection component 100, the first main body 115 is connected to the fifth retaining bar 1163, and the third adaptation block 1172 is provided between the first section 11521 and the second end 112; the second main body 125 is connected to the sixth retaining bar 1263, and the fourth adaptation block 1272 is connected between the third section 12521 and the fourth section 12522. The fifth retaining bar 1163 and the sixth retaining bar 1263 abut against each other. In this working state, a difference between a length of the fifth retaining bar 1163 and a length of the first retaining bar 1161 is equal to a length of the third adaptation block 1172, and ae difference between a length of the sixth retaining bar 1263 and a length of the second retaining bar 1261 is equal to a length of the fourth adaptation block 1272.

Specific number of the adaptation blocks may correspond to the number of air handling units 1 that the connection component 100 actually needs to be adapted to. When it is necessary to adapt to two air handling units 1 of different sizes, the connection component 100 may only include two adaptation blocks, i.e. the first adaptation block 1171 and the second adaptation block 1271. When it is necessary to adapt to three air handling units 1 of different sizes, the connection component 100 may include four adaptation blocks, i.e. the first adaptation block 1171, the second adaptation block 1271, the third adaptation block 1172, and the fourth adaptation block 1272.

The relative positional relationship between the first adaptation block 1171 and the second adaptation block 1271 may depend on actual needs. In some embodiments, the first adaptation block 1171 and the second adaptation block 1271 do not overlap in a direction parallel to the first axis. In other embodiments, the first adaptation block 1171 and the second adaptation block 1271 partially overlap in the direction parallel to the first axis a. In the above two embodiments, in the direction parallel to the first axis a, the first adaptation block 1171 and the second adaptation block 1271 can be well positioned. In some embodiments, referring to FIGS. 6-9, the first adaptation block 1171 and the second adaptation block 1271 completely overlap in the direction parallel to the first axis a. In this solution, the shapes of the first adaptation block 1171 and the second adaptation block 1271 can be exactly the same, and the shapes of the first main body 115 and the second main body 125 can be exactly the same. The first adaptation block 1171 and the second adaptation block 1271 can be processed and formed at the same time using one set of molds, and the first main body 115 and the second main body 125 can be processed and formed at the same time using one set of molds, thereby reducing the processing cost of the connection component 100 and improving the processing efficiency. Furthermore, the first frame 110 and the second frame 120 can be exactly the same in structure, so that the first frame 110 and the second frame 120 can be processed and formed simultaneously using the same set of molds (two frames in the same structure, where the one connected to the first housing 200 is the aforementioned first frame 110, and the other connected to the second housing 300 is the aforementioned second frame 120), thereby resulting in lower processing cost and higher processing efficiency.

Referring to FIGS. 8-9, in some embodiments, first stops 11711 may be respectively provided at two ends of the first adaptation block 1171, grooves with openings facing away from the second frame 120 may be provided at ends of the first section 11521 and the second section 11522, respectively, and two first stops 11711 are provided in the two grooves in a one-to-one correspondence, thereby realizing the connection between the first adaptation block 1171 and the first section 11521 and the second section 11522. Similarly, second stops 12711 may be respectively provided at two ends of the second adaptation block 1271, grooves with openings facing away from the first frame 110 may be provided at the ends of the third sections 12521 and the fourth sections 12522, respectively, and the two second stops 12711 are provided in the above two grooves in a one-to-one correspondence, thereby realizing the connection between the second adaptation block 1271 and the third section 12521 and the fourth section 12522.

Referring to FIG. 18, in some embodiments, the first main body 115 includes a first rod 1152 opposite to the first retaining bar 1161, with the first rod 1152 including a first section 11521, a first middle section 11523, and a second section 11522. One end of the first middle section 11523 is detachably connected to the first section 11521, and the other end is detachably connected to the second section 11522. The second main body 125 includes a second rod 1252 opposite to the second retaining bar 1261, with the second rod 1252 including a third section 12521, a second middle section 12523, and a fourth section 12522. One end of the second middle section 12523 is detachably connected to the third section 12521, and the other end is detachably connected to the fourth section 12522. The difference between this embodiment and the previous embodiment is that the connection component 100 does not need to adapt to air handling units 1 of different sizes. In this scheme, the annular component can be divided into at least four parts for separate processing during processing. Compared with the connection component 100 being an annular whole undergoing mold processing, the connection component 100 in this embodiment can be processed by using a plurality of smaller molds, which reduces the difficulty of mold manufacturing. Moreover, since a middle portion of a mold used to produce an annular part does not participate in the shaping of the product, an annular portion is split into at least four parts along the circumferential direction for separate processing, and the portion not participating shaping of the mold that processes the parts is reduced, which makes higher utilization of the mold material and reduces the overall material cost of the mold.

The applicant found that in a structural arrangement where the first end 111 is formed in a flat plate shape and the flat plate-like structure fits the first housing 200, when the material of the first end 111 is relatively soft, although the fit between the first end 111 and the first housing 200 is relatively good and the sealing between the first end 111 and the first housing 200 is relatively good, the structural strength of the first frame 110 is poor, and it is difficult to control the fitting gap. When the material of the first end 111 is relatively rigid, although it is easy to adjust the fitting gap between the first end 111 and the first housing 200, it is difficult for the two harder planes to fit closely, so that a gap is likely to exist between the first end 111 of the first frame 110 and the first housing 200, resulting in poor airtightness between the first end 111 and the first housing 200. In order to solve the above problem, referring to FIGS. 10-13, in some embodiments, the first end 111 is provided with a first rib 1111, of which the thickness direction is perpendicular to the first axis a, and the first rib 1111 is adapted to abut against the first housing 200. In this scheme, a side of the first rib 1111 perpendicular to the thickness direction abuts against the first housing 200. Since the contact area between the first rib 1111 and the first housing 200 is small, even if the first rib 1111 is made of a relatively rigid material, it can make the gap between the first rib 1111 and the first housing 200 less likely to occur. Moreover, when the first rib 1111 is made of a relatively rigid material, the structural strength of the first frame 110 can be ensured. In order to further improve the structural strength of the first frame 110, a plurality of first ribs 1111 may be provided, and the first ribs 1111 are spaced apart in a direction perpendicular to the first axis a.

Referring to FIGS. 10-13, in some embodiments, the second end 112 is provided with a second rib 1211, of which the thickness direction is perpendicular to the second axis b, and the second rib 1211 is adapted to abut against the second housing 300. Similarly, in this scheme, a side of the second rib 1211 perpendicular to the thickness direction abuts against the second housing 300. Since the contact area between the second rib 1211 and the second housing 300 is small, even if the second rib 1211 is made of a relatively rigid material, it can also make the gap between the second rib 1211 and the second housing 300 less likely to occur. Moreover, when the second rib 1211 is made of a relatively rigid material, the structural strength of the second frame 120 can be ensured. In order to further improve the structural strength of the second frame 120, a plurality of second ribs 1211 may be provided, and the second ribs 1211 are spaced apart in a direction perpendicular to the first axis a.

In order to improve the sealing effect between the first frame 110 and the second frame 120, referring to FIGS. 10-13, in some embodiments, the second end 112 is provided with a first annular groove 1122 arranged around the first axis a, the fourth end 122 is provided with a second annular groove 1222 arranged around the second axis b, and the first annular groove 1122 and the second annular groove 1222 are configured to communicate with each other while the second end 112 is connected to the fourth end 122. The connection component 100 further includes a fill member 140 adapted to be filled in a space formed together by the first annular groove 1122 and the second annular groove 1222, while the second end 112 is connected to the fourth end 122. In this scheme, while the first frame 110 is connected to the second frame 120z, an annular groove is formed between the first frame 110 and the second frame 120. The annular groove is formed by the first annular groove 1122 and the second annular groove 1222 together. The annular groove is filled with a fill member 140, which may be made of foam, silicone or other suitable materials. The fill member 140 can be compressed by the first frame 110 and the second frame, so that the fill member 140 fills the space between the first frame 110 and the second frame 120, improving the sealing effect between the first frame 110 and the second frame 120.

Referring to FIGS. 1 to 24, specifically referring to FIGS. 19 to 24, in an embodiment according to a second aspect of the present disclosure a connection component 100 for an air handling unit 1 is provided. The air handling unit 1 includes a first housing 200 and a second housing 300. Referring to FIG. 19, the connection component 100 is in the shape of a ring arranged around a third axis. Specifically, the connection component 100 may have a circular ring shape, a rectangular ring shape, an elliptical ring shape, or other structures. The specific shape of the connection component 100 depends on the corresponding shapes of the first housing 200 and the second housing 300. The following description takes as an example that the first housing 200 and the second housing 300 are rectangular frames and the connection member 100 is in the shape of a rectangular ring. One end of the connection component 100 parallel to the third axis is adapted to be connected to one end of the first housing 200, and the other end is adapted to be connected to one end of the second housing 300. The connection component 100 includes a first body 151, a second body 152, a first connection block 161, and a second connection block 162.

Referring to FIG. 19, the first body 151 is arranged around the third axis, and includes a first connection end 1511 and a second connection end 1512 that are arranged oppositely circumferentially along the third axis. The second body 152 is arranged around the third axis, and includes a third connection end 1521 opposite to the first connection end 1511 and a fourth connection end 1522 opposite to the second connection end 1512. The angles of the first body 151 and the second body 152 around the third axis depend on actual needs. In this embodiment, the angles of the first body 151 and the second body 152 around the third axis are both greater than 90 degrees. It should be noted that the angle between the perpendicular line from the first connection end 1511 to the third axis and the perpendicular line from the second connection end 1512 to the third axis is the angle of the first body 151 around the third axis. The angle between the perpendicular line from the third connection end 1521 to the third axis and the perpendicular line from the fourth connection end 1522 to the third axis is the angle of the second body 152 around the third axis. The first body 151 and the second body 152 are arranged oppositely in the direction perpendicular to the third axis. After the connection component 100 connects the first housing and the second housing 300, one end of the first body 151 is connected to the first housing 200 and the other end is connected to the second housing 300; one end of the second body 152 is connected to the first housing 200 and the other end is connected to the second housing 300.

One end of the first connection block 161 is detachably connected to the first connection end 1511, and the other end of the first connection block 161 is detachably connected to the third connection end 1521. Specifically, the first connection block 161 can be threaded, snap-connected or riveted with the first body 151 and the second body 152. One end of the second connection block 162 is detachably connected to the second connection end 1512, and the other end of the second connection block 162 is detachably connected to the fourth connection end 1522. Specifically, the second connection block 162 can be threaded, snap-connected or riveted with the first body 151 and the second body 152. When the connection component 100 connects the first housing 200 and the second housing 300, one end of the first connection block 161 is connected to the first housing 200 and the other end of the first connection block 161 is connected to the second housing 300; one end of the second connection block 162 is connected to the first housing 200 and the other end of the second connection block 162 is connected to the second housing 300. The first body 151, the first connection block 161, the second body 152 and the second connection block 162 are connected end to end along the circumferential direction of the third axis to form an annular frame, and the first connection block 161 and the second connection block 162 are respectively located at two opposite sides of the connection member 100 in the direction perpendicular to the third axis. For example, when in the shape of a rectangular ring, the connection component 100 has four sides, and the first connection block 161 and the second connection block 162 are respectively located on two opposite sides.

In this embodiment, the annular connection component 100 can be divided into at least four parts, i.e. the first body 151, the first connection block 161, the second body 152 and the second connection block 162, for separate processing. Compared with the connection component 100 being a single annular part in molding, the connection component 100 in this embodiment can be produced in parts by using a plurality of smaller molds, which reduces the difficulty of mold manufacturing. Moreover, since the middle portion of the mold used to produce an annular component does not participate in the molding of the product, splitting the annular component into at least four parts along the circumferential direction for separate processing can reduce the portion of the mold not participating in the molding of the part, which makes higher utilization of the mold material and reduces the overall material cost of the mold. In addition, the part splitting method in which the first connection block 161 and the second connection block 162 are located on two opposite sides of the connection component 100 can make the surrounding angle of each part of the connection component 100 smaller, which can further improve the utilization of the mold material.

Referring to FIGS. 19-20, in some embodiments, along the circumferential direction of the third axis, the length of the first connection block 161 is equal to the length of the second connection block 162, and the first connection end 1511 is adapted to be connected to the third connection end 1521, and the second connection end 1512 is adapted to be connected to the fourth connection end 1522. In this scheme, the first connection block 161 and the second connection block 162 can be removed, and the first connection end 1511 is connected to the third connection end 1521, and the second connection end 1512 is connected to the fourth connection end 1522, that is, the first body 151 and the second body 152 are connected to each other and form an annular frame structure. This scheme allows the connection component 100 to adapt to an air handling unit 1 that is smaller in one direction. It should be noted that when the connection component 100 is in the shape of a rectangular ring and both the first connection block 161 and the second connection block 162 are in the shape of a straight block, the circumferential length of the first connection block 161 in the third axis is the length of the first connection block 161 in the corresponding side parallel to the connection component 100, and the circumferential length of the second connection block 162 in the third axis is the length of the second connection block 162 in the other corresponding side parallel to the connection component 100.

Referring to FIGS. 21-23, in other embodiments, along the circumferential direction of the third axis, the length of the first connection block 161 is less than the length of the second connection block 162, and the first connection end 1511 is adapted to be connected to the third connection end 1521. The connection component 100 further includes a third connection block 163, of which one end is adapted to be connected to the second connection end 1512, and the other end is adapted to be connected to the fourth connection end 1522. Along the circumferential direction of the third axis, the difference between the length of the second connection block 162 and the length of the third connection block 163 is equal to the length of the first connection block 161. In this scheme, the first connection block 161 and the second connection block 162 can be removed, so that the first connection end 1511 is connected to the third connection end 1521, and the third connection block 163 is connected to the second connection end 1512 and the fourth connection end 1522, respectively, that is, the first body 151, the second body 152 and the third connection block 163 are connected to each other to form an annular frame structure. In this scheme, while the adaptability of the connection component 100 is improved, the size of the first body 151 and the second body 152 can also be minimized, whereby the size of the mold for processing the first body 151 and the second body 152, the difficulty of mold processing, and the material cost of the mold are reduced. Referring to the figures, in another embodiment, the connection component 100 is in the shape of a rectangular ring and includes four side rods, one of which is the second connection block 162, and the side rod opposite to the second connection block 162 includes the first connection block 161. That is, in this embodiment, when the first body 151, the second body 152, the first connection block 161 and the second connection block 162 are connected to each other to form an annular frame structure, the length of the second connection block 162 is equal to the length of one of the sides of the connection component 100. When the first body 151, the second body 152 and the third connection block 163 are connected to each other to form an annular frame structure, the length of the third connection block 163 is equal to the length of one of the sides of the connection component 100. In this scheme, the corner structures of the first body 151 and the second body 152 can be reduced, so that the material utilization rate of the molds for processing the first body 151 and the second body 152 is higher. Moreover, the second connection block 162 and the third connection block 163 can also be located at the front exterior surface of the air handling unit 1. This scheme can enable the connection component 100 to have a neater appearance regardless of the types of the air handling unit 1 to be adapted.

To enhance the adaptability of the connection component 100, in some embodiments, the connection component 100 further includes a fourth connection block 164 and a fifth connection block 165. One end of the fourth connection block 164 is adapted to be detachably connected to the first connection end 1511, and the other end of the fourth connection block 164 is adapted to be detachably connected to the third connection end 1521; one end of the fifth connection block 165 is adapted to be detachably connected to the second connection end 1512, and the other end of the fifth connection block 165 is adapted to be detachably connected to the fourth connection end 1522. Along the circumferential direction of the third axis, a difference between a length of the fourth connection block 164 and a length of the first connection block 161 is equal to a difference between a length of the fifth connection block 165 and a length of the second connection block 162. The specific adapting method of this scheme can be found in the previous desertion and will not be described in detail here.

Referring to FIG. 24, in some embodiments, the connection component 100 includes a first frame 110 and a second frame 120. The first frame 110 is in the shape of a ring arranged around the third axis and has a first end 111 and a second end 112 that are oppositely arranged in a direction parallel to the third axis. The first end 111 is adapted to be connected to one end of the housing 200. The second frame 120 is in the shape of a ring arranged around the third axis and has a third end 121 and a fourth end 122 that are oppositely arranged in a direction parallel to the third axis. The third end 121 is adapted to be connected to one end of the second housing 300, and the fourth end 122 is connected to the second end 112. Each of the first body 151, the second body 152, the first connection block 161 and the second connection block 162 includes a first portion and a second portion that are distributed in a direction parallel to the third axis. The first frame 110 includes the first portions of the first body 151, the second body 152, the first connection block 161 and the second connection block 162. The second frame 120 includes the second portions of the first body 151, the second body 152, the first connection block 161 and the second connection block. In other words, in this embodiment, the first body 151 is divided into two portions, one portion belongs to the first frame 110 and the other portion belongs to the second frame 120. The second body 152 is divided into two portions, one portion belongs to the first frame 110 and the other portion belongs to the second frame 120. The first connection block 161 is divided into two portions (the two portions may be the first adaptation block 1171 and the second adaptation block 1271 in the previous embodiments), one portion belongs to the first frame 110 and the other portion belongs to second frame 120. The second connection block 162 is divided into two portions (the two portions may be the first retaining bar 1161 and the second retaining bar 1261 in the previous embodiments), one portion belongs to the first frame 110 and the other portion belongs to the second frame 120. In some embodiments, the annular frame structure consists of the first body 151, the second body 152, the first connection block 161 and the second connection block 162 and the annular frame structure consists of the first frame 110 and the second frame 120 is the same, with only different structure division.

In some embodiments, each of the first body 151 and the second body 152 can be divided into two portions, and the first connection block 161 and the second connection block 162 are single parts. In this way, during adaptation, only the two parts need to be removed or installed (when each of the first connection block 161 and the second connection block 162 is divided into two portions, four parts need to be removed), which reduces the difficulty of disassembly and assembly.

In some embodiments, the second end 112 is provided with a first limit groove 1121, and the fourth end 122 is provided with a second limit groove 1221. The connection component 100 further includes a limit member 130, of which one end extends into the first limit groove 1121, and the other end extends into the second limit groove 1221. The specific structures of the first limit groove 1121, the second limit groove 1221 and the limit member 130 refer to the previous embodiments and will not be described again here.

Referring to FIGS. 1-24, in an embodiment according to a third aspect of the present disclosure a housing assembly 10 for an air handling unit 1 is provided. The housing assembly 10 includes the connection component 100, the first housing 200 and the second housing 300 described in the above embodiments. The first housing 200 is configured to accommodate a first functional component, and the second housing 300 is configured to accommodate a second functional component. The connection component 100 is connected to the first housing 200 at one end and the second housing 300 at the other end. When the air handling unit 1 is an air conditioner, the first functional component and the second functional component may include one of an air supply assembly, a filter assembly, and a heat exchange assembly. In some embodiments, the housing assembly 10 may further include a third housing and a third functional component, which will not be described again here. Due to the improvement of the connection component 100, the housing assembly 10 has all the technical effects of the aforementioned connection component 100

In some embodiments, the connection component 100 has a third operating state and a fourth operating state. In the third working state, the first end 111 is connected to the first housing 200, the second end 112 is connected to the fourth end 122, the third end 121 is connected to the second housing 300, and one end of the limit member 130 extends into the first limit groove 1121, and the other end extends into the second limit groove 1221. That is, the third working state corresponds to the aforementioned first installation scenario. In the fourth working state, the first end 111 is connected to the first housing 200, the third end 121 is connected to the second housing 300, the first frame 110 is separated from the second frame 120, and one end of the limit member 130 extends into the first limit groove 1121, or is separated from both the first frame 110 and the second frame 120. That is, the fourth working state corresponds to the aforementioned second installation scenario.

Referring to FIGS. 1-24, in an embodiment according to a fourth aspect of the present disclosure an air handling unit 1 is provided. The air handling unit 1 includes the housing assembly 10, the first functional component and the second functional component described in the above embodiments. The first functional component is provided in the first housing 200. The second functional component is provided in the second housing 300. Due to the improvement of the connection component 100, the air handling unit 1 has all the technical effects of the aforementioned connection component 100.

Compared with the related art, in the technical scheme of the present disclosure, the connection component includes a first frame, a second frame, and a limit member. The first end of the first frame is adapted to be connected to the first end of the first housing of the air handling unit, the third end of the second frame is adapted to be connected to one end of the second housing of the air handling unit, and the second end of the first frame is connected to the fourth end of the second frame, to achieve the connection between the first housing and the second housing. Specifically, the second end of the first frame is provided with a first limit groove, the fourth end of the second frame is provided with a second limit groove, and while the second end of the first frame is connected to the fourth end of the second frame, the limit member can be arranged between the first frame and the second frame, with one end extending into the first limit groove and the other end extending into the second limit groove, to limit the relative positions of the first frame and the second frame. According to the technical scheme of the present disclosure, the connecting part is divided into two portions including a first frame and a second frame, and the two portions are connected to the first housing and the second housing correspondingly. Compared with a structure that the connection component is a single component and located between the first housing and the second housing, in the connection component of the scheme, the first frame and the second frame can be first individually and correspondingly assembled to the first housing and the second housing during the assembly and transportation of the two modules of the air handling unit, which makes the subsequent assembly of the two modules much easier. Furthermore, compared with a structure that a protrusion is provided on the first frame, a groove is provided on the second frame, and the protrusion cooperates with the groove, since in this embodiment the limit member is provided independently, when a module corresponding to the first housing and a module corresponding to the second housing do not need to be stacked and assembled, the limit member can be removed in this scheme, so that the two modules have no protruding in shape, making it easier for the two modules to be laid flat and connected to other components. That is, the connection component in this solution can also be adapted to two different assembly needs of the air handling unit, with higher adaptability.

It should be noted that if the embodiments of the present disclosure involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are merely used to explain the relative positional relationship, movement conditions, etc. of each component in a specific posture. If the specific posture changes, the directional indications will also change accordingly.

In addition, if involved in the embodiments of the present disclosure, the descriptions of “first,” “second,” etc. are merely for descriptive purposes and shall not be understood as indicating or implying its relative importance or implicitly specifying the quantity of the technical feature indicated. Therefore, features defined with “first” and “second” may explicitly or implicitly include at least one of these features. In addition, if “and/or,” “and/or” or “and/or” appear throughout the text, the meaning includes three parallel solutions. Taking “A and/or B” as an example, it includes solution A, or solution B, or a solution that satisfies both A and B. In addition, the technical solutions in the various embodiments can be combined with each other, but must be based on what a person of ordinary skill in the art can implement. When the combination of technical solutions is contradictory or cannot be realized, it should be considered that such a combination of technical solutions does not exist, nor is it within the scope of protection required by the present disclosure.

The above are only some example embodiments of the present disclosure, and not intended to limit the patent scope of the present disclosure. Any equivalent structural transformations made by utilizing the contents of the specification and the accompanying drawings of the present disclosure under the inventive concept of the present disclosure, or directly/indirectly utilized in other related fields of technology, fall within the scope of patent protection of the present disclosure.