VAPORIZATION CORE, VAPORIZATION DEVICE AND MANUFACTURING DEVICE FOR VAPORIZATION CORE

Description

CROSS REFERENCE TO RELATED APPLICATIONS

The present application claims priority to the following Chinese patent applications, and the content of all of these patent applications is incorporated herein by reference in its entirety:

• • 1. the Chinese Patent Application No. 202422278281.9, filed on Sep. 18, 2024, titled Heating Element, Vaporization Core and Vaporization Device; and
  • 2. the Chinese Patent Application No. 202422284322.5, filed on Sep. 18, 2024, titled Manufacturing Device For Vaporization Core.

TECHNICAL FIELD

The present disclosure relates to the technical field of electronic vaporization cores, and in particular to a vaporization core, a vaporization device, and a manufacturing device for the vaporization core.

BACKGROUND ART

In the technical field of electronic vaporizing, an electronic vaporization device generally includes a vaporization core, and a main structure of the vaporization core includes a heating element, a porous body, and other components. The heating element is a key part of the vaporization core, and is configured to convert electric energy into thermal energy and vaporize the vaporizing liquid. For the preparation of the heating element, specific processing and forming of a heating material (such as a nickel-chromium alloy or a tungsten alloy) are usually required to form a heating wire or a heating sheet with a specific shape and size.

Currently, a heating element in the prior art generally has a single heating structure, that is, there is only one heating area, and carbon deposition will occur during repeated operations in the same area for a long time, which compromises the vaporizing effect, and the problem of core burning will also occur due to insufficient liquid supply during continuous vaporizing, thereby shortening the service life.

SUMMARY OF THE INVENTION

A vaporization core, a vaporization device, and a manufacturing device for the vaporization core provided by the present disclosure effectively overcome the defects of vaporization devices in the prior art including carbon deposition after a period of use, which may compromise the vaporizing effect and shorten the service life.

According to a first aspect of the present disclosure, a vaporization core is provided in an example, including a heating element and a porous matrix;

• • an installation cavity is formed inside the porous matrix, and the heating element is installed inside the installation cavity;
  • the heating element includes a heating part, the heating part includes a first heating structure and a second heating structure connected by a connecting part, the connecting part is provided with a first lead, and second leads are arranged on both the first heating structure and the second heating structure; the first lead is configured to input current, and the second leads are configured to output current; alternatively, the first lead is configured to output current, and the second leads are configured to input current; and both the first heating structure and the second heating structure have a hollow structure penetrating their centers in an axial direction.

In an implementable embodiment, the first heating structure and the second heating structure are axially symmetrically arranged relative to the first lead arranged on the connecting part; or

• • the first heating structure and the second heating structure are centrally symmetrically arranged relative to the first lead arranged on the connecting part.

In an implementable embodiment, the heating element is a heating wire, and one end of the heating wire is arranged in a spiral manner to form the first heating structure; and the other end of the heating wire is also arranged in the spiral manner to form the second heating structure.

In an implementable embodiment, a diameter of the heating wire ranges from 0.5 mm to 1 mm; and/or

• • resistance values of the first heating structure and the second heating structure both range from 1.1 Ω to 1.5 Ω.

In an implementable embodiment, the first heating structure is a heating mesh, and one end of the heating mesh is bent along a side edge and extends to the other end of the heating mesh to form the internally hollow first heating structure; or

• • the second heating structure is a heating mesh, one end of the heating mesh is bent along a side edge and extends to the other end of the heating mesh to form the internally hollow second heating structure; or
  • the first heating structure and the second heating structure are both heating meshes, one end of a first heating mesh is bent along a side edge and extends to the other end of the first heating mesh to form the internally hollow first heating structure, and one end of a second heating mesh is bent along a side edge and extends to the other end of the second heating mesh to form the internally hollow second heating structure.

In an implementable embodiment, a gap is formed between a distal end of the first heating structure and the connecting part, and a gap is formed between a distal end of the second heating structure and the connecting part.

In an implementable embodiment, the connecting part between the first heating structure and the second heating structure is provided with a hollow-out structure.

In an implementable embodiment, a thickness of the heating mesh ranges from 0.04 mm to 0.12 mm; and/or

• • resistance values of the first heating structure and the second heating structure both range from 1.1 Ω to 1.5 Ω.

In an implementable embodiment, the installation cavity includes a first installation cavity and a second installation cavity, the first heating structure is installed inside the first installation cavity, and the second heating structure is installed inside the second installation cavity.

In an implementable embodiment, a cross section of the porous matrix is arranged to have an “8”-shaped structure, a rectangular structure, or a circular rectangular structure.

According to a second aspect, a manufacturing device for a vaporization core is provided in an example, the manufacturing device is configured to prepare the above vaporization core, and the manufacturing device includes: a base and a molded structure;

• • the base is provided with a mold core and a fixing hole; the mold core is configured to place the heating part and fixedly support the heating part, and the fixing hole is configured for a current lead to pass through; the current lead includes the first lead or the second lead; and
  • the molded structure is provided with a mold cavity and a slurry injection port communicated with the mold cavity, when the molded structure is used in cooperation with the base, the mold core is located inside the mold cavity, and a spacing is left between an outer surface of the mold core and an inner surface of the mold cavity, where the spacing is configured to inject a porous matrix slurry.

In an implementable embodiment, the mold core is arranged in a columnar shape and extends in a direction away from the base, and the heating element is sleeved on the mold core.

In an implementable embodiment, the number of the mold cores equals to the number of the heating structures, and the mold cores are spaced apart from each other; and the number of the fixing holes equals to the number of the current leads.

In an implementable embodiment, the base is further provided with at least one first guiding post, the first guiding post extends in a direction toward the molded structure, and the molded structure is provided with a first guiding hole at a position corresponding to the first guiding post for the first guiding post to move inside the first guiding hole in a guiding manner; or

• • the molded structure is further provided with at least one first guiding post, the first guiding post extends in a direction toward the base, and the base is provided with a first guiding hole at a position corresponding to the first guiding post for the first guiding post to move inside the first guiding hole in a guiding manner.

In an implementable embodiment, the molded structure includes a mid-section molded substructure and an upper cover substructure, wherein the mold cavity is formed on the mid-section molded substructure, and the slurry injection port is arranged on the upper cover substructure; and when the upper cover substructure is used in cooperation with the mid-section molded substructure, the slurry injection port is communicated with the mold cavity. In an implementable embodiment, a diameter of the slurry injection port gradually decreases in a slurry injection direction.

In an implementable embodiment, an opening area of the slurry injection port on a side close to the mid-section molded substructure is smaller than an opening area of the mold cavity on a side close to the upper cover substructure.

In an implementable embodiment, the base is formed by splicing a first base and a second base; a side surface where the first base is spliced with the second base is a first splicing surface, a side surface where the second base is spliced with the first base is a second splicing surface, and the first splicing surface and the second splicing surface are matched with each other; and

• • the first splicing surface is provided with a first arc-shaped groove penetrating longitudinally, and the second splicing surface is provided with a second arc-shaped groove penetrating longitudinally at a position corresponding to the first arc-shaped groove; and after the first base and the second base are spliced, the first arc-shaped groove and the second arc-shaped groove form the fixing hole.

In an implementable embodiment, the first splicing surface is provided with one of a second guiding post and a second guiding hole, the second splicing surface is provided with the other of the second guiding post and the second guiding hole, and the second guiding post moves inside the second guiding hole in a guiding manner, to separate or splice the first base and the second base.

In an implementable embodiment, a plurality of fixing holes are formed, and central axes of the plurality of fixing holes are located on a same plane; or

• • central axes of the plurality of fixing holes may form at least two intersecting planes.

According to a third aspect, a vaporization device is provided in an example, including the above vaporization core and a power supply assembly, and the power supply assembly is electrically connected to the heating element.

According to the vaporization core in the above example, the vaporization core includes the heating element and the porous matrix. The heating part includes the first heating structure and the second heating structure connected by the connecting part. The second leads are arranged on both the first heating structure and the second heating structure, and the connecting part is provided with the first lead. Additionally, both the first heating structure and the second heating structure have a hollow structure penetrating their centers in an axial direction, and the heating element is fixedly arranged inside the porous matrix. In use, the power supply assembly alternately supplies current to the first heating structure and the second heating structure, which achieves the alternating heating through the first heating structure and the second heating structure. The above solution of this example enables to extend the service life of the heating element. When the first heating structure operates for vaporizing, the second heating structure may temporarily cease operation, or when the second heating structure operates for vaporizing, the first heating structure may temporarily cease operation, which facilitates liquid absorption by the porous matrix, and reduces the possibility of dry burning and carbon deposition, thereby ensuring the taste consistency.

DESCRIPTION OF THE DRAWINGS

FIG. 1 is a schematic structural diagram of a vaporization core provided in this example of the present disclosure.

FIG. 2 is a schematic diagram of a bottom view structure of a vaporization core provided in this example.

FIG. 3 is a schematic diagram of another bottom view structure of a vaporization core provided in this example.

FIG. 4 is a schematic diagram of a structure of a heating element as a heating wire provided in this example.

FIG. 5 is a schematic diagram of another structure of a heating element as a heating wire provided in this example.

FIG. 6 is a schematic diagram of a structure of a heating element as a heating mesh provided in this example.

FIG. 7 is a schematic diagram of another structure of a heating element as a heating mesh provided in this example.

FIG. 8(a), 8(b), and 8(c) are schematic diagrams of a porous matrix with different structures in some examples of the present disclosure.

FIG. 9 is an exploded view of a manufacturing device for a vaporization core provided in this example.

FIG. 10 is a schematic diagram of a top view of a first base provided in this example.

FIG. 11 is another exploded view of a manufacturing device for a vaporization core provided in this example.

FIG. 12 is a schematic diagram of a structure of a first base provided in this example.

FIG. 13 is a schematic structural diagram of a second base matched with the first base in FIG. 12.

FIG. 14 is a schematic structural diagram of the first base in FIG. 10 after placement of a heating element.

FIG. 15 is a schematic structural diagram of the first base in FIG. 14 after placement of a mid-section molded substructure.

FIG. 16 is a schematic structural diagram of a second base provided in this example.

FIG. 17 is a schematic structural diagram of the second base in FIG. 16 after placement of a heating element.

FIG. 18 is a schematic structural diagram of a third base provided in this example.

FIG. 19 is a schematic diagram of an overall structure of a manufacturing device for a vaporization core provided in this example after splicing.

FIG. 20(a) and 20(b) are top views of two different structures of bases provided in the present disclosure.

FIG. 21(a) and 21(b) are schematic structural diagrams of heating elements matched with the bases in FIG. 20(a) and 20(b).

REFERENCE NUMERALS IN THE ACCOMPANYING DRAWINGS

• • 10—base; 11—fixing hole; 12—mold core; 13—first guiding post; 14—second guiding post; 15—second guiding hole; 16—first base; 161—first splicing surface; 162—first arc-shaped groove; 17—second base; 171—second splicing surface; 172—second arc-shaped groove; 20—molded structure; 21—mold cavity; 22—slurry injection port; 23—mid-section molded substructure; 24—upper cover substructure; 25—first guiding hole; 30—vaporization core; 31—heating element; 311—heating part; 3111—first heating structure; 3112—second heating structure; 312—current lead; 3121—second lead; 3122—first lead; 313—connecting part; 32—spacing; 33—porous matrix; and 34—installation cavity.

DETAILED DESCRIPTION OF THE EMBODIMENTS

The present disclosure will be further described in detail below with reference to specific embodiments and accompanying drawings. Similar elements in different embodiments are labeled with associated similar element labels. In the following embodiments, more details are described to facilitate clearer understanding of the present disclosure. However, those skilled in the art can readily recognize that some of the features can be omitted in different cases, or can be replaced by other elements, materials, and methods. In some cases, some operations related to the present disclosure are not shown or described in the specification, with the aim of preventing the important part of the present disclosure from being overwhelmed by excessive description, and for those skilled in the art, it is unnecessary to describe these related operations in detail, and they can gain a thorough understanding of the related operations according to the description in the specification and the general technical knowledge in the field.

In addition, the features, operations, or characteristics described in the specification can be combined in any suitable manner to form various embodiments. Furthermore, the steps or actions stated in the methods can also be sequentially exchanged or adjusted in terms of sequence in a manner obvious to those skilled in the art. Therefore, various sequences in the specification and drawings are merely for clear description of an embodiment, and are not intended to be a necessary sequence, unless otherwise specified that a certain sequence must be followed.

The serial numbers assigned to the components herein, such as “first”, “second”, are only used to distinguish the described objects, and do not have any sequence or technical meaning. The terms “connection” and “coupling” mentioned herein include direct and indirect connection (coupling), unless otherwise specified.

With reference—FIGs. 1-3, a vaporization core 30 provided in this example includes a heating element 31 and a porous matrix 33; and an installation cavity 34 is formed inside the porous matrix 33, and the heating element 31 is installed inside the installation cavity 34. As an embodiment, the porous matrix 33 may be a porous ceramic core, and specifically, the porous ceramic core may be integrally formed with the heating element 31 through a hot-press casting process.

In actual use, an aerosol matrix, after passing through the porous matrix 33, is heated by a first heating structure 3111 or a second heating structure 3112, to achieve the vaporization of the aerosol matrix, and the aerosol generated by vaporizing is discharged through a hollow structure of the heating element 31. The porous matrix 33 is arranged to be a porous ceramic core, and the porous matrix 33 and the heating element 31 are integrally formed through the hot-press casting process, such that the porous matrix and the heating element are tightly fixed. Specifically, ceramic slurry is prepared first, the heating element 31 is placed on a customized hot-press casting mold, a ceramic green body is prepared through the hot-press casting process, and then an integral structure formed by combining the porous ceramic core and the heating element 31 is obtained through debinding and sintering.

Further, the porous matrix 33 in this example is provided with a first installation cavity and a second installation cavity, where the first heating structure 3111 is installed inside the first installation cavity, and the second heating structure 3112 is installed inside the second installation cavity. Specifically, a cross section of the porous matrix 33 is arranged to have an “8”-shaped structure as shown in FIG. 8(a); alternatively, the cross section of the porous matrix is arranged to have a circular rectangular structure as shown in FIG. 8(b); or the cross section of the porous matrix is arranged to have a rectangular structure as shown in FIG. 8 (c). The porous ceramic core with a cross section arranged to have the rectangular or circular rectangular structure has a large liquid storage capacity, and the porous ceramic core with the cross section arranged to have the “8”-shaped structure has a relatively small liquid storage capacity but has a maximum wicking rate. Therefore, a suitable shape of the porous ceramic may be selected according to actual needs. For example, from the perspective of vaporizing, the wicking rate significantly impacts the vaporizing effect, and therefore, the porous ceramic core with the cross section arranged to have the “8”-shaped structure exhibits the optimal effect in a vaporizing process. From the perspective of vaporizing duration, the liquid storage capacity significantly impacts the vaporizing duration, and therefore, the porous ceramic core with the cross section arranged to have the rectangular or circular rectangular structure exhibits the optimal effect of vaporizing.

As shown in FIGS. 4-7, the heating element 31 in this example includes a heating part, the heating part includes the first heating structure 3111 and the second heating structure 3112 connected by a connecting part 313, the connecting part 313 is provided with a first lead 3122, and second leads 3121 are arranged on both the first heating structure 3111 and the second heating structure 3112; the first lead 3122 is configured to input current, and the second leads 3121 are configured to output current; alternatively, the first lead 3122 is configured to output current, and the second leads 3121 are configured to input current; and both the first heating structure 3111 and the second heating structure 3112 have a hollow structure penetrating their centers in an axial direction. In practical applications, the first lead 3122 and the second leads 3121 may be flexible wires or metal terminals (such as pin connectors), and arrangement specifically depends on actual needs.

As an embodiment, in practical applications, the first lead 3122 and the second leads 3121 are arranged in the following two modes: in the first arrangement mode, the first lead 3122 is configured to output current, and the second leads 3121 are configured to input current; and in the second arrangement mode, the first lead 3122 is configured to input current, and the second leads 3121 are configured to output current. In the following examples, the above first arrangement mode is explained as an example.

Specifically, the heating element 31 integrally connects the first heating structure 3111 and the second heating structure 3112 through the connecting part 313, where both the first heating structure 3111 and the second heating structure 3112 have a hollow structure penetrating their centers in an axial direction, the second lead 3121 is arranged at an end portion of the first heating structure 3111, the second lead 3121 is arranged at an end portion of the second heating structure 3112, and the first lead 3122 is arranged on the connecting part 313 connecting the first heating structure 3111 and the second heating structure 3112, where the first lead 3122 and the second leads 3121 may be arranged in parallel. During operation, when the current flows in through the second lead 3121 of the first heating structure 3111 and flows out through the first lead 3122, the first heating structure 3111 is activated for heating; and when the current flows in through the second lead 3121 of the second heating structure 3112 and flows out through the first lead 3122, the second heating structure 3112 is activated for heating. The two heating structures may be activated alternately or simultaneously for heating.

The connecting part 313, the first heating structure 3111, and the second heating structure 3112 may be integrally formed.

Due to use of the vaporization core 30 in this example, the two heating structures of the heating element 31 may be activated alternately for heating, that is, when one heating structure is operating, the other heating structure may temporarily cease operation, which not only avoids the problem of insufficient liquid supply in a local area caused by continuous vaporization in the same area and further prevents dry burning, thereby reducing the possibility of carbon deposition, extending the service life of the heating element 31, and ensuring the taste consistency during inhalation.

In some examples, the first heating structure 3111 and the second heating structure 3112 are axially symmetrically arranged relative to the first lead 3122 arranged on the connecting part 313; or, the first heating structure 3111 and the second heating structure 3112 are centrally symmetrically arranged relative to the first lead 3122 arranged on the connecting part 313.

As an embodiment of this example, the heating element 31 is a heating wire, and with reference to FIGS. 4 and 5, one end of the heating wire is arranged in a spiral manner to form the first heating structure 3111; the other end of the heating wire is also arranged in the spiral manner to form the second heating structure 3112; the second lead 3121 is arranged at a distal end of the first heating structure 3111 and a distal end of the second heating structure 3112 respectively, and the first lead 3122 is arranged on the heating wire connecting the first heating structure 3111 and the second heating structure 3112.

In this example, specifically, in combination with FIGS. 4 and 5, the spiral-shaped first heating structure 3111 encloses a hollow structure axially penetrating, that is, an interior of the spiral-shaped first heating structure 3111 is a hollow structure axially penetrating. Similarly, the spiral-shaped second heating structure 3112 encloses a hollow structure axially penetrating, that is, an interior of the spiral-shaped second heating structure 3112 is a hollow structure axially penetrating. The second lead 3121 is arranged at the distal end of the spiral-shaped first heating structure 3111, the second lead 3121 is also arranged at the distal end of the spiral-shaped second heating structure 3112, and the first lead 3122 is arranged on the heating wire (i.e., the connecting part 313) connecting the first heating structure 3111 and the second heating structure 3112.

In this example, when the heating element 31 is a heating wire, a shape of the heating wire may be set according to actual needs, the first heating structure 3111 and the second heating structure 3112 of the heating wire may be axially symmetrically arranged relative to the first lead 3122, and the structure is as shown in FIG. 4; or, the first heating structure 3111 and the second heating structure 3112 of the heating wire may be centrally symmetrically arranged relative to the first lead 3122, and the structure is as shown in FIG. 5.

Further, a diameter of the heating wire ranges from 0.5 mm to 1 mm; and/or resistance values of the first heating structure 3111 and the second heating structure 3112 both range from 1.1 Ω to 1.5 Ω.

In this example, the diameter of the heating wire is set to fall within a range from 0.5 mm to 1 mm, and since the diameter of the heating wire directly affects the resistance value and further affects a heating temperature, the diameter of the heating wire is set to fall within a range from 0.5 mm to 1 mm according to experimental findings by the inventor, thereby achieving the optimal vaporizing effect. Similarly, when the resistance value of the heating structure ranges from 1.1 Ω to 1.5 Ω, the optimal vaporizing effect is achieved.

As another embodiment of this example, with reference to FIGS. 6 and 7, the first heating structure 3111 is a heating mesh, and one end of the heating mesh is bent along a side edge and extends to the other end of the heating mesh to form the internally hollow first heating structure 3111; or the second heating structure 3112 is a heating mesh, one end of the heating mesh is bent along a side edge and extends to the other end of the heating mesh to form the internally hollow second heating structure 3112; or the first heating structure 3111 and the second heating structure 3112 are both heating meshes, one end of a first heating mesh is bent along a side edge and extends to the other end of the first heating mesh to form the internally hollow first heating structure 3111, and one end of the second heating mesh is bent along a side edge and extends to the other end of the second heating mesh to form the internally hollow second heating structure 3112.

In practical applications, the first heating structure 3111 may be arranged as a heating mesh, and the second heating structure 3112 may also be arranged as a heating mesh. When both the first heating structure 3111 and the second heating structure 3112 are heating meshes, the other end of the heating mesh of the first heating structure 3111 (i.e., the first heating mesh) is connected to the other end of the heating mesh of the second heating structure 3112 (i.e., the second heating mesh) to form the connecting part 313; and the second lead 3121 is arranged at the end portion of the first heating structure 3111 and the end portion of the second heating structure 3112 respectively, and the first lead 3122 is arranged at a position where the first heating structure 3111 and the second heating structure 3112 are connected (i.e., the connecting part 313).

Further, the first heating structure 3111 and the second heating structure 3112 are axially symmetrically arranged relative to the first lead 3122 arranged on the connecting part 313; or the first heating structure 3111 and the second heating structure 3112 are centrally symmetrically arranged relative to the first lead 3122 arranged on the connecting part 313.

In this example, when the heating element 31 is a heating wire, a shape of the heating mesh may be set according to actual needs, the first heating structure 3111 and the second heating structure 3112 of the heating mesh may be axially symmetrically arranged relative to the first lead 3122, and the structure is as shown in FIG. 6; or the first heating structure 3111 and the second heating structure 3112 of the heating mesh may be centrally symmetrically arranged relative to the first lead 3122, and the structure is as shown in FIG. 7. It should be noted that the heating mesh shown in FIGS. 6 and 7 in this example is designed to have a solid sheet-shaped structure only for the illustrative purpose, and in practical applications, the heating mesh may be in various hollow structure forms.

In other specific embodiments of this example, the first heating structure 3111, the second heating structure 3112, and the connecting part 313 may be integrally formed, as shown in FIGS. 6 and 7.

The heating element 31 provided by the present disclosure is arranged to generally have a similar “8”-shaped structure with dual vaporizing channels (i.e., dual hollow structures axially penetrating), with specific details shown in FIGS. 4-7.

As a further improvement of this example, with reference to FIGS. 6 and 7, when the heating element 31 is a heating mesh, a gap is formed between the distal end of the first heating structure 3111 and the connecting part 313, and a gap is formed between the distal end of the second heating structure 3112 and the connecting part 313.

In this example, the connecting part 313 is provided with the first lead 3122, and the second lead 3121 is arranged at the distal end of the first heating structure 3111 and the distal end of the second heating structure 3112 respectively. The distal end of the first heating structure 3111 is not connected to the connecting part 313 (that is, a gap is formed therebetween), to ensure the independence of signal transmission between the first lead 3122 and the second lead 3121 and avoid occurrence of the short-circuit situation caused by contact between the two leads. Similarly, the distal end of the second heating structure 3112 is not connected to the connecting part 313 (that is, a gap is formed therebetween), which also avoids occurrence of the short-circuit situation caused by contact between the two leads; and additionally, in some vaporization cores, the gap may serve as a passage for a wicking substrate (such as wicking cotton), or may be adapted to the wicking substrate (such as the wicking cotton) with a gap to avoid dry burning.

As a further improvement in this example, in combination with FIGS. 6 and 7, the connecting part 313 between the first heating structure 3111 and the second heating structure 3112 is provided with a hollow-out structure. Specifically, the connecting part of the heating mesh may be arranged to have a discontinuous hollow-out structure to reduce the situation that heating by the heating mesh inside the ceramic core does not cause vaporization, and ensure a connection strength between the heating mesh and the ceramic core while saving materials.

Further, a thickness of the heating mesh ranges from 0.04 mm to 0.12 mm; and/or the resistance values of the first heating structure 3111 and the second heating structure 3112 both range from 1.1 Ω to 1.5 Ω.

In this example, the thickness of the heating mesh is set to fall within a range from 0.04 mm to 0.12 mm, and since the thickness of the heating mesh directly affects the resistance value and further affects a heating temperature, the thickness of the heating mesh is set to fall within a range from 0.04 mm to 0.12 mm according to experimental findings by the inventor, thereby achieving the optimal vaporizing effect. Similarly, when the resistance value of the heating structure ranges from 1.1 Ω to 1.5 Ω, the optimal vaporizing effect is achieved.

Further, a vaporization device is provided in this example, including the above vaporization core 30 and a power supply assembly; and the power supply assembly is electrically connected to the heating element 31 and configured to supply power to the heating element 31.

The vaporization device in this example is employed, which extends the service life of the heating element 31, and when the first heating structure 3111 operates for vaporizing, the second heating structure 3112 may temporarily cease operation, which facilitates liquid absorption by the matrix, and reduces the possibility of dry burning and carbon deposition, thereby ensuring the taste consistency. The power supply assembly may be an independent power supply or a power supply integrated on a control chip. Since the vaporization core 30 has been described in detail in the above examples, this example will not be described in detail again.

With reference to FIGS. 1 and 9, a manufacturing device for a vaporization core is provided in an example of the present disclosure, and the manufacturing device in this example is configured to prepare the vaporization core 30 in the above examples. That is to say, the manufacturing device in this example is a mold for preparing the above vaporization core 30.

Specifically, the manufacturing device includes a base 10 and a molded structure 20. The base 10 is provided with a mold core 12 and a fixing hole 11, and the mold core 12 is configured to place the heating part 311 and fixedly support the heating part 311; and the fixing hole 11 is configured for a current lead 312 to pass through, and the current lead 312 includes the first lead 3122 and/or the second lead 3121. The molded structure 20 is provided with a mold cavity 21 and a slurry injection port 22 communicated with the mold cavity, when the molded structure 20 is used in cooperation with the base 10, the mold core 12 may be placed inside the mold cavity 21, and when the mold core 12 is placed inside the mold cavity 21, a spacing is left between an outer surface of the mold core 12 and an inner surface of the mold cavity 21, where the spacing is configured to inject a porous matrix slurry to form the above porous matrix 33, and the vaporization core 30 may be integrally formed by using the manufacturing device in this example, thereby reducing the operation difficulty and enhancing the production efficiency.

Each heating structure of the heating part 311 is generally arc-shaped with a hollow channel, such as a spiral heating wire (referring to FIG. 17 or FIG. 21(a)), or a heating sheet wound into a hollow channel (referring to FIG. 21(b)), and the like. In this case, the mold core 12 may be arranged in a columnar shape, the mold core 12 extends in a direction away from the base 10, and the heating structure of the heating part 311 is sleeved on the mold core 12, where the shape of the mold core 12 is generally adapted to the hollow channel of the heating structure.

In practical applications, the heating part 311 includes the first heating structure 3111 and the second heating structure 3112, when two or more heating structures are not axially arranged, the number of the mold cores 12 generally should correspond to the number of the heating structures, and the mold cores 12 are spaced apart from each other. Additionally, in practical applications, further, the number of the current leads 312 may be three or more, and at least one of the current leads 312 is simultaneously connected to two heating structures. Specifically, with reference to FIG. 21(a)-21(b), such arrangement is generally intended to enable a plurality of (including two) heating structures of the heating part 311 to operate simultaneously or in an alternating cycle. For the heating element with three or more current leads 312, the number of the fixing holes 11 of the manufacturing device of the present disclosure should also correspond to the number of the current leads 312.

The preparation of the vaporization core 30 with the heating element 31 provided with the heating part 311 with dual heating structures (i.e., the first heating structure 3111 and the second heating structure 3112) and three current leads 312 (i.e., two second leads 3121 and one first lead 3122) is described for illustration purposes.

As a specific embodiment, with reference to FIGS. 9, 10, and 17, two mold cores 12 and three fixing holes 11 are arranged on an upper surface of the base 10, where positions and sizes of the two mold cores 12 are adapted to the hollow structures (i.e., hollow channels) of the first heating structure 3111 and the second heating structure 3112, and positions of the fixing holes 11 correspond to positions of the current leads 312 for the first lead 3122 and the second leads 3121 to pass through, where the three current leads 312 include one first lead 3122 and two second leads 3121.

To prepare the vaporization core 30, first, the first lead 3122 and the second leads 3121 of the heating element 31 are correspondingly inserted into the fixing holes 11, and the two mold cores 12 of the base 10 are correspondingly placed in the two hollow structures of the heating element 31 (an installation mode is as shown in FIG. 14 or FIG. 17). Then, the molded structure 20 is placed on the base 10, and specifically, the mold core 12 of the base 10 (and the heating element 31 arranged on the mold core 12) is placed inside the mold cavity 21 of the molded structure 20. After matching, slurry is injected into the mold cavity 21 through the slurry injection port 22 to wrap the heating element 31, the porous matrix 33 is formed after the injected slurry solidifies, and the porous matrix 33 and the heating element 31 are integrally fixed through subsequent process steps to form the vaporization core 30. Finally, the vaporization core 30 is demolded from the manufacturing device (i.e., the mold), to obtain the vaporization core 30 with the dual heating structures. Through the manufacturing device in this example, the vaporization core 30 with the dual heating structures is integrally formed, which reduces the operation difficulty and enhances the production efficiency.

As a further improvement of this example, the base 10 is further provided with at least one first guiding post 13, the first guiding post 13 extends in a direction toward the molded structure 20, and the molded structure 20 is provided with a first guiding hole 25 at a position corresponding to the first guiding post 13 for the first guiding post 13 to move inside the first guiding hole 25 in a guiding manner; and alternatively, the first guiding post 13 is arranged on the molded structure 20, and the first guiding hole 25 is formed on the base 10.

In a specific embodiment of this example, the first guiding post 13 is vertically arranged on the upper surface of the base 10, and the first guiding hole 25 corresponding to the first guiding post 13 is arranged on the molded structure 20, such that when the molded structure 20 is placed on the base 10, the first guiding hole 25 is just matched with the first guiding post 13, and the molded structure 20 is matched with the base 10 under the guidance of the first guiding post 13. In this example, the first guiding post 13 and the first guiding hole 25 matched with the first guiding post 13 are arranged to achieve a guiding function and ensure that the mold cavity 21 and the mold core 12 are better matched when the molded structure 20 is placed on the base 10, and the molded structure 20 will not move during the casting process, thereby improving the production yield. Specifically, four first guiding posts 13 may be arranged in this example and are uniformly arranged around the mold core 12 to ensure the stability of the mold during installation. Similarly, when the first guiding post 13 is arranged on the molded structure 20 and the first guiding hole 25 is formed on the base 10, the arrangement mode is similar to the above arrangement mode, and will not be described in detail again.

Further, as an embodiment, the molded structure 20 includes a mid-section molded substructure 23 and an upper cover substructure 24, where the mold cavity 21 is formed on the mid-section molded substructure 23, and the slurry injection port 22 is arranged on the upper cover substructure 24; and when the upper cover substructure 24 is used in cooperation with the mid-section molded substructure 23, the slurry injection port 22 is communicated with the mold cavity 21.

With reference to FIGS. 9 and 11, when the molded structure 20 in this example is used, the mid-section molded substructure 23 and the upper cover substructure 24 are sequentially placed on the base 10, then slurry is injected into the mold cavity 21 from the slurry injection port 22, and the specific process of preparing the vaporization core 30 is the same as the process of preparing the above molded structure 20 with an integral structure. Such design facilitates the installation and removal of the mold and makes demolding easier, and addition of the upper cover substructure 24 prevents overflow of the slurry.

In this example, FIG. 15 is a schematic structural diagram of the mid-section molded substructure 23 installed on the base 10, where a spacing 32 is formed between the outer surface of the mold core 12 and the inner surface of the mold cavity 21, and during slurry injection, the slurry will fill the spacing 32 to form the porous matrix 33. An extension length of the mold core 12 is generally greater than or equal to a depth of the mold cavity 21.

Further, with reference to FIG. 19, a diameter of the slurry injection port 22 in this example gradually decreases in a slurry injection direction. Such arrangement ensures that the porous matrix slurry is easily injected into the mold cavity 21.

Further, an opening area of the slurry injection port 22 on a side close to the mid-section molded substructure 23 in this example is smaller than an opening area of the mold cavity 21 on a side close to the upper cover substructure 24. Such arrangement ensures that when the slurry is injected into the mold cavity 21 through the slurry injection port 22, a slurry injection speed may be controlled, thereby ensuring the quality of the finally formed porous matrix 33, and additionally, it is further ensured that the slurry will not overflow during injection.

Further, with reference to FIGS. 11, 12, and 13, the base 10 in this example is formed by splicing a first base 16 and a second base 17, a side surface where the first base 16 is spliced with the second base 17 is a first splicing surface 161, a side surface where the second base 17 is spliced with the first base 16 is a second splicing surface 171, and the first splicing surface 161 and the second splicing surface 171 are matched with each other; the first splicing surface 161 is provided with a first arc-shaped groove 162 penetrating longitudinally, and the second splicing surface 171 is provided with a second arc-shaped groove 172 penetrating longitudinally at a position corresponding to the first arc-shaped groove 162; and after the first base 16 and the second base 17 are spliced, the first arc-shaped groove 162 and the second arc-shaped groove 172 form the fixing hole 11.

With reference to FIGS. 11-13 and FIG. 16, the base 10 in this example is arranged to be formed by splicing the first base 16 and the second base 17. Specifically, the side surface where the first base 16 is spliced with the second base 17 is defined as the first splicing surface 161 (that is, a splicing surface of the first base 16 is the first splicing surface 161), and the side surface where the second base 17 is spliced with the first base 16 is defined as the second splicing surface 171 (that is, a splicing surface of the second base 17 is the second splicing surface 171), where the first splicing surface 161 and the second splicing surface 171 are matched with each other. In another way of understanding, the base 10 is divided into the first base 16 and the second base 17 along the fixing hole 11. Therefore, the first splicing surface 161 is provided with the first arc-shaped groove 162 penetrating longitudinally, and the second splicing surface 171 is provided with the second arc-shaped groove 172 penetrating longitudinally at the position corresponding to the first arc-shaped groove 162; and after the first base 16 and the second base 17 are spliced, the first arc-shaped groove 162 and the second arc-shaped groove 172 form the fixing hole 11. Such design effectively reduces the difficulty of threading three leads, and also facilitates the demolding of the second lead 3121 and the first lead 3122 during demolding. The term “longitudinally” mentioned in this example refers to a direction in which the current lead 312 is inserted.

In practical operation, the current lead 312 is first correspondingly placed in the first arc-shaped groove 162 or the second arc-shaped groove 172, then the first base 16 or the second base 17 is pushed to splice the first base 16 and the second base 17, and in this case, the current lead 312 is located inside the fixing hole 11; then the heating element 31 is pushed downward to sleeve the heating part 311 of the heating element 31 onto the mold core 12 (specifically, the hollow structures of the first heating structure 3111 and the second heating structure 3112 are sleeved into the mold core 12 from top to bottom in a height direction), and then the subsequent slurry injection process is implemented.

Further, with reference to FIGS. 12 and 13, the first splicing surface 161 is provided with one of a second guiding post 14 and a second guiding hole 15, the second splicing surface 171 is provided with the other of the second guiding post 14 and the second guiding hole 15, and the second guiding post 14 moves inside the second guiding hole 15 in a guiding manner, to separate or splice the first base 16 and the second base 17.

Specifically, the second guiding post 14 is arranged on the first splicing surface 161 of the first base 16, and the second guiding post 14 may be arranged perpendicular to the first splicing surface 161; and the second splicing surface 171 of the second base 17 is provided with the second guiding hole 15 at a position corresponding to the second guiding post 14, and when the first base 16 and the second base 17 are spliced, the second guiding post 14 penetrates the second guiding hole 15, such that the first base 16 and the second base 17 are better spliced. The operational principle of the second guiding post 14 is the same as the operational principle of the first guiding post 13. Alternatively, the second guiding post 14 may be arranged on the second splicing surface 171, the second guiding hole 15 is formed on the first splicing surface 161 at a position corresponding to the second guiding post 14, and the second guiding hole 15 is configured for the second guiding post 14 to penetrate; and the first base 16 and the second base 17 are spliced through the second guiding post 14 and the second guiding hole 15.

In an example, the base 10 is provided with a plurality of (three or more) fixing holes 11, and central axes of the plurality of fixing holes 11 are located on a same plane. Specifically, with reference to FIGS. 16 and 20(a), that is, in this example, the plurality of fixing holes 11 are arranged side by side. Correspondingly, as an example, the base 10 of this structure is configured to place the heating element 31 as shown in FIG. 21(a); and alternatively, the base 10 of this structure is adapted to any heating element 31 with a plurality of the current leads 312 arranged side by side. As another example, the base 10 as shown in FIG. 20(b) is configured to place the heating element 31 as shown in FIG. 21(b).

In another example, the base 10 is provided with a plurality of (three or more) fixing holes 11, and central axes of the plurality of fixing holes 11 may form at least two intersecting planes. For example, when three fixing holes 11 are defined as a hole a, a hole b, and a hole c, at least a plane formed by central axes of the hole a and the hole b intersects with a plane formed by central axes of the hole a and the hole c, or at least a plane formed by central axes of the hole b and the hole c intersects with a plane formed by central axes of the hole a and the hole b, or at least a plane formed by central axes of the hole b and the hole c intersects with a plane formed by central axes of the hole a and the hole c. Specifically, with reference to FIGS. 10-14, it may be understood that the three fixing holes 11 in this example are respectively located at three vertices of a triangle.

For another example, when four fixing holes 11 are defined as a hole a, a hole b, a hole c, and a hole d, at least a plane formed by central axes of the hole a and the hole b intersects with a plane formed by central axes of the hole b and the hole c, or at least a plane formed by central axes of the hole a and the hole d intersects with a plane formed by central axes of the hole c and the hole d, or at least a plane formed by central axes of the hole c and the hole d intersects with a plane formed by central axes of the hole b and the hole c, or at least a plane formed by central axes of the hole b and the hole c intersects with a plane formed by central axes of the hole a and the hole b. It may be understood that the four fixing holes 11 in this example are located at four vertices of a parallelogram, a rectangle, a trapezoid, or any other quadrilateral; and when the number of the fixing holes 11 exceeds four, at least four fixing holes are located at the four vertices of the parallelogram or the rectangle.

Moreover, as an extended scheme of the manufacturing device, when there is only one mold core 12, the mold core 12 may be located on the first base 16 or the second base 17; or a part of the mold core 12 is located on the first base 16, another part thereof is located on the second base 17, and after the first base 16 and the second base 17 are spliced, the two parts are spliced to form the complete mold core 12. When there are more than two mold cores 12, a part of the mold cores 12 may be located on the first base 16, and another part of the mold cores 12 may be located on the second base 17, specifically with reference to FIGS. 16, 17, 18, and 20; and alternatively, a part of at least one mold core 12 is located on the first base 16, another part thereof is located on the second base 17, and after the first base 16 and the second base 17 are spliced, a plurality of (including two) complete mold cores 12 are formed, specifically with reference to FIGS. 9-13. The distribution of the mold cores 12 may be adjusted according to the specific structure of the heating element 31 that actually needs to be produced, which is not particularly limited here.

The above specific examples are applied to describe the present disclosure, are only intended to help understand the present disclosure, and are not intended to limit the present disclosure. For those skilled in the art to which the present disclosure belongs, several simple deductions, modifications, or substitutions may also be made according to the ideas presented in the present disclosure.