PORTABLE TEMPERATURE ADJUSTMENT DEVICE

Description

CROSS REFERENCE TO RELATED APPLICATIONS

This application is a continuation-in-part of International Patent Application No. PCT/CN2024/115017, filed on Aug. 28, 2024, which claims priority of China Patent Application No. 202322346945.6 filed on Aug. 30, 2023 and China Patent Application No. 202322388018.0 filed on Aug. 31, 2023. This application also claims priority of China Patent Application No. 202520580684.0 filed on Mar. 28, 2025, China Patent Application No. 202520590602.0 filed on Mar. 28, 2025, China Patent Application No. 202520902013.1 filed on May 8, 2025 and China Patent Application No. 202520914265.6 filed on May 9, 2025. The contents of the above-identified applications are incorporated herein by reference.

TECHNICAL FIELD

The application relates to the technical field of temperature adjustment devices, and particularly to a portable temperature adjustment device.

BACKGROUND

Currently, portable temperature adjustment devices on the market are generally categorized into three types such as handheld type, neck-hanging type, and waistband type. Such portable temperature adjustment devices usually realize the air-blowing function for temperature adjustment of the user through built-in fans and air inlets and air outlets defined in the housings of the devices. However, these kinds of portable temperature adjustment devices typically only have fans and the airflow generated by the fan is natural wind, resulting in the temperature adjustment performance not good enough. For example, when the ambient temperature is high in summer, the temperature of the air drawn from outside the housing by the fan is also high and close to the temperature of the user's body. Therefore, the heat exchange efficiency between the user's body and the airflow blown on the user's body by the fan is relatively low, making the temperature adjustment effect of the portable temperature adjustment device not significant.

SUMMARY

It is desired to provide an improved portable temperature adjustment device.

A portable temperature adjustment device comprises a housing, a fan arranged in the housing and configured to generate an airflow, and a temperature adjustment assembly mounted to the housing. The temperature adjustment assembly comprises a temperature adjustment component and a thermal conduction component in thermal conductive connection with the temperature adjustment component. The thermal conduction component comprises a ventilation port to allow the airflow to pass through. The temperature adjustment component is configured to adjust the temperature of the thermal conduction component such that the airflow is cooled down or heated up when passing through the thermal conduction component.

In some embodiments, the thermal conduction component comprises a thermal conduction case arranged inside the housing, the thermal conduction case comprises a fan chamber in which the fan is accommodated, and the fan chamber defines the ventilation port.

In some embodiments, the fan chamber forms a fan accommodating cavity, the fan is accommodated in the fan accommodating cavity, and the temperature adjustment component is in thermal conductive connection with a part of the fan chamber forming the fan accommodating cavity.

In some embodiments, the housing comprises an air inlet in communication with the ventilation port.

In some embodiments, the thermal conduction case comprises an air duct shell connected to the fan chamber, and the air duct shell forms an air passage in communication with the fan accommodating cavity.

In some embodiments, the thermal conduction component is mounted to the housing and exposed on an outer surface of the housing.

In some embodiments, the ventilation port acts as an intake port of the fan or an exhaust port of the fan; or the thermal conduction component comprises two said ventilation ports one of which acts as an intake port of the fan and the other of which acts as an exhaust port of the fan.

In some embodiments, the housing defines a wearing space, and the thermal conduction component is arranged on a side of the housing facing the wearing space.

In some embodiments, the thermal conduction component comprises an air-blockage prevention structure configured to prevent the ventilation port from being blocked.

In some embodiments, the air-blockage prevention structure comprises a plurality of protruding portions arranged at intervals, and the ventilation port is arranged at bottoms of grooves formed between adjacent protruding portions.

In some embodiments, the air-blockage prevention structure is a groove formed in the thermal conduction component, and the ventilation port is defined at a bottom of the groove.

In some embodiments, the housing comprises an air outlet in communication with the ventilation port.

In some embodiments, an air guiding portion is arranged inside the housing and configured to guide the airflow generated by the fan towards the ventilation port.

In some embodiments, the housing comprises an avoidance portion for the thermal conduction component. The thermal conduction component passes through the avoidance portion to be in thermal conductive connection with the temperature adjustment component, or the temperature adjustment component passes through the avoidance portion to be in thermal conductive connection with the thermal conduction component.

In some embodiments, the portable temperature adjustment device further comprises a heat dissipator in thermal conductive connection with a side of the temperature adjustment component away from the thermal conduction component.

In some embodiments, the heat dissipator comprises a heat dissipation base in thermal conductive connection with the temperature adjustment component and a plurality of heat dissipation fins arranged on a side of the heat dissipation base away from the thermal conduction component, and a heat dissipation channel is formed between every adjacent two heat dissipation fins.

In some embodiments, the thermal conduction component comprises a thermal conduction base in thermal conductive connection with the temperature adjustment component and a plurality of temperature conduction fins arranged on a side of the thermal conduction base away from the temperature adjustment component, a temperature conduction channel is formed between every adjacent two temperature conduction fins, and an opening of the temperature conduction channel acts as the ventilation port.

In some embodiments, the housing comprises an air outlet in communication with the ventilation port.

The technical solution of the application has at least the following beneficial effects: the temperature adjustment component is capable of adjusting the temperature of the thermal conduction component such that the airflow generated by the fan can be cooled or heated when flowing through the thermal conduction component, which facilitates increasing the temperature difference between the user's body and the airflow blown to the user's body, enabling the portable temperature adjustment device to provide enhanced temperature regulation by blowing cool or warm air for the user.

BRIEF DESCRIPTION OF THE DRAWINGS

To better clarify the technical solutions in the embodiments of the application, drawings used for describing the embodiments of the application or the prior art are briefly introduced below. Apparently, the drawings in the following description merely illustrate some embodiments of the application. For those ordinarily skilled in the art, other drawings may be obtained according to the following ones without creative labor.

FIG. 1 is a perspective view of a portable temperature adjustment device in accordance with a first embodiment of the application.

FIG. 2 is another perspective view of the portable temperature adjustment device shown in FIG. 1, a part of the housing of the device being removed in order to show the internal structure in the housing.

FIG. 3 illustrates a thermal conduction case shown in FIG. 2.

FIG. 4 is a left side view of the portable temperature adjustment device shown in FIG. 1.

FIG. 5 is an exploded view of a portion of the portable temperature adjustment device shown in FIG. 1.

FIG. 6 is an exploded view of the thermal conduction case and a heat dissipation assembly shown in FIG. 4.

FIG. 7 is a perspective view of a portable temperature adjustment device in accordance with a second embodiment of the application.

FIG. 8 is a partial exploded view of the portable temperature adjustment device shown in FIG. 7.

FIG. 9 illustrates another thermal conduction component.

FIG. 10 is a perspective view of a portable temperature adjustment device in accordance with a third embodiment of the application.

FIG. 11 is a partial exploded structural view of the portable temperature adjustment device shown in FIG. 10.

FIG. 12 is a perspective view of a portable temperature adjustment device in accordance with a fourth embodiment of this application.

FIG. 13 is a partial exploded structural view of the portable temperature adjustment device shown in FIG. 12.

FIG. 14 is a perspective structural view of a portable temperature adjustment device in accordance with a fifth embodiment of this application.

FIG. 15 is a partial exploded structural view of the portable temperature adjustment device shown in FIG. 14.

FIG. 16 is another partial exploded structural view of the portable temperature adjustment device shown in FIG. 14.

FIG. 17 is a perspective view of a portable temperature adjustment device in accordance with a sixth embodiment of this application.

FIG. 18 is another perspective view of the portable temperature adjustment device in FIG. 17.

FIG. 19 is an exploded view of FIG. 17.

FIG. 20 is a cross-sectional view of FIG. 17.

FIG. 21 is an enlarged view of a circled portion B in FIG. 20.

FIG. 22 is a perspective view of an air duct shown in FIG. 19.

FIG. 23 illustrates the air duct of FIG. 22, viewed from another aspect.

FIG. 24 is a structural view of an inner housing portion in FIG. 19.

FIG. 25 is another exploded structural view of the portable temperature adjustment device in FIG. 17.

FIG. 26 is an exploded view of a first housing portion shown in FIG. 17.

FIG. 27 is an exploded view of a portable temperature adjustment device in accordance with a seventh embodiment of this application.

FIG. 28 is a cross-sectional structural view of the portable temperature adjustment device in FIG. 27.

FIG. 29 is a perspective view of a portable temperature adjustment device in accordance with an eighth embodiment of this application.

FIG. 30 is another perspective view of the portable temperature adjustment device shown in FIG. 29.

FIG. 31 is an exploded view of FIG. 30.

FIG. 32 is a perspective view of a first air duct in FIG. 31.

FIG. 33 is a perspective view of a second air duct in FIG. 31.

FIG. 34 is another exploded view of the portable temperature adjustment device shown FIG. 29.

FIG. 35 is a perspective view of a portable temperature adjustment device in accordance with a ninth embodiment of this application.

FIG. 36 is another perspective view of the portable temperature adjustment device in FIG. 35.

FIG. 37 is a cross-sectional view taken along line A-A of the portable temperature adjustment device in FIG. 35.

FIG. 38 is a perspective view of a temperature adjustment assembly in FIG. 35.

FIG. 39 is another perspective view of the portable temperature adjustment device in FIG. 35 with a part of the housing removed.

FIG. 40 is still another perspective view of the portable temperature adjustment device in FIG. 35 with another part of the housing removed.

FIG. 41 is an exploded view of a connecting section in FIG. 35.

FIG. 42 is a perspective view of the portable temperature adjustment device in FIG. 35 with a part of the connecting section being removed.

FIG. 43 is an enlarged view of a circled portion C in FIG. 42.

FIG. 44 illustrates an assembled fan and air duct in FIG. 35.

FIG. 45 is an exploded view of the assembled fan and air duct in FIG. 44.

FIG. 46 is another perspective view of the connecting section in FIG. 35.

FIG. 47 is an exploded view of the portable temperature adjustment device in FIG. 36.

FIG. 48 illustrates the fan, air duct, and temperature adjustment assembly in FIG. 47.

FIG. 49 illustrates the fan, air duct, and temperature adjustment assembly in FIG. 47, viewed from another aspect.

FIG. 50 is another exploded view of the portable temperature adjustment device in FIG. 36.

FIG. 51 is an exploded view of a first housing portion shown in FIG. 50.

DESCRIPTION OF THE EMBODIMENTS

The technical solutions in the embodiments of the present application are clearly and completely described below in conjunction with accompanying drawings of the embodiments of the application. Apparently, the embodiments described below are merely illustrative ones and are not all possible ones of the application. All other embodiments obtained by those ordinarily skilled in the art based on the following ones without creative labor should also fall within the protection scope of the application.

Referring to FIGS. 1 to 6, a portable temperature adjustment device 10 according to a first embodiment of the application comprises a housing 18, a fan 14, and a temperature adjustment assembly. The fan 14 is arranged in the housing 18, and the temperature adjustment assembly is connected to the housing 18. The temperature adjustment assembly includes a temperature adjustment component 16 and a thermal conduction component 12 in thermal conductive connection with the temperature adjustment component 16. The thermal conduction component 12 is provided with a ventilation port 124. The temperature adjustment component 16 is configured to adjust the temperature of the thermal conduction component 12, thereby cooling or heating the airflow generated by the fan 14 as it passes through the thermal conduction component 12.

The thermal conductive connection in this application means that two objects can directly contact each other to transfer heat therebetween, or indirectly contact each other to transfer heat therebetween, for example, through intermediate thermal conductive media such as thermal grease/paste or graphite to form indirect contact for heat transfer.

The aforementioned portable temperature adjustment device 10 applies the temperature adjustment component 16 to adjust the temperature of the thermal conduction component 12, and utilizes the ventilation port 124 of the thermal conduction component 12 to cool down or heat up the airflow generated by the fan 14, thereby increasing the temperature difference between the user's body and the airflow blown to the user's body by the fan 14. This enables the aforementioned portable temperature adjustment device 10 to provide improved temperature adjustment function for the user by blowing cool or warm air.

Referring to FIGS. 2 and 4, the thermal conduction component 12 includes a thermal conduction case which defines a fan chamber 122. A fan accommodating cavity 128 is formed inside the fan chamber 122. The fan 14 is arranged in the fan accommodating cavity 128. The temperature adjustment component 16 is in thermal conductive connection with the part of the fan chamber 122 forming the fan accommodating cavity 128. Further, the housing 18 has a receiving cavity 182. The thermal conduction case, the fan 14, and the temperature adjustment component 16 are arranged in the receiving cavity 182, and the fan accommodating cavity 128 is in communication with the receiving cavity 182. The housing 18 is provided with an air inlet 184 and an air outlet 186, which are respectively in communication with the fan accommodating cavity 128. The air inlet 184 is arranged corresponding to and in communication with the ventilation port 124. Specifically, in this embodiment, the air inlet 184 is aligned with the ventilation port 124.

Specifically, the thermal conduction case can, for example, be made of materials with good thermal conductivity such as copper alloy or aluminum alloy. The temperature adjustment component 16 can be, for example, an element capable of heating up, or an element capable of cooling down. For example, it can be a heating resistor wire or a semiconductor refrigeration sheet, etc. The ventilation port 124, the air inlet 184, and the air outlet 186 can comprise, for example, mesh hole arrays, honeycomb hole arrays, ring holes, circular holes, or various other through-holes or combinations of through-holes that allow air flow therethrough.

Further, referring to FIGS. 3 and 5, the fan chamber 122 is provided with ventilation ports 124. The thermal conduction case comprises an air duct shell 121 connected to the shell of the fan chamber 122. The air duct shell 121 and the shell of the fan chamber 122 can be connected by assembling or integrally formed together as a single piece. An air passage 123 is formed inside the air duct shell 121, and the air passage 123 is in communication with the fan accommodating cavity 128. The air duct shell 121 is provided with an air passage opening 126, which is in communication with the air outlet 186. The airflow generated by the fan 14 first gathers in the fan chamber 122 after entering through the air inlets 184 and the ventilation ports 124, then flows through the air passage 123 to the air passage opening 126 and the air outlet 186, and then blows towards the user. The air passage 123 formed in the air duct shell 121 can adjust the speed of the airflow according to Bernoulli's principle and the adjustment of the speed of the airflow by the air passage 123 depends on the internal structure of the air passage 123. The internal structure of the air passage 123 is not specifically limited in this embodiment, and can be designed by those skilled in the art according to actual needs.

Further, referring to FIGS. 3 and 5, the thermal conduction case includes a first sub-case 127 and a second sub-case 129. The first sub-case 127 and the second sub-case 129 enclose to form and delimit the fan accommodating cavity 128. The first sub-case 127 and the second sub-case 129 are be connected by assembly or integrally formed together as a single piece.

Specifically, the first sub-case 127 and the second sub-case 129 are connected to form the fan chamber 122, and can also be connected to form the air duct shell 121, and enclose to form the air passage 123.

Further, referring to FIGS. 3 and 5, the fan chamber 122 defines two ventilation ports 124, which are respectively defined in the first sub-case 127 and the second sub-case 129. The number of the air inlets 184 is two, and the two ventilation ports 124 are respectively arranged on opposite ends of the fan 14. Specifically, the two ventilation ports 124 are respectively arranged on opposite ends of the fan 14 in the axial direction of the fan 14. The two air inlets 184 correspond to the two ventilation ports 124 one by one, which means each air inlet 184 corresponds to one ventilation port 124. By setting two ventilation ports 124, the air intake volume per unit time of the fan chamber 122 can be increased.

Additionally, referring to FIGS. 4 and 6, the housing 18 includes a first sub-housing 181 and a second sub-housing 183. The first sub-housing 181 and the second sub-housing 183 are connected to form and delimit the receiving cavity 182. The thermal conduction case and the first sub-housing 181 enclose to form and delimit the fan accommodating cavity 128.

Therefore, the thermal conduction case has a semi-opened structure. For example, the thermal conduction case only includes the second sub-case 129 as shown in FIG. 5, that is, the first sub-case 127 has been omitted. The second sub-case 129 has an opening 125 formed at the side, away from the ventilation port 124, thereof. The opening 125 is in communication with the air passage opening 126 and the fan accommodating cavity 128 respectively. The thermal conduction case, through the second sub-case 129, and the first sub-housing 181, encloses to form the fan accommodating cavity 128 and the air passage 123. By setting the thermal conduction case as a semi-opened case, material of the thermal conduction case can be saved and costs reduced accordingly.

Further, the temperature adjustment component 16 is a semiconductor refrigeration sheet. The semiconductor refrigeration sheet can provide heating or cooling according to the Peltier effect. The portable temperature adjustment device 10 may comprises a circuit electrically that is electrically connected to the semiconductor refrigeration sheet and can reverse the direction of current. When the current flows through the circuit in one direction, the side of the semiconductor refrigeration sheet in thermal conductive connection with the thermal conduction case can provide cooling. When the current flows through the circuit in another direction reverse to the one direction, the side of the semiconductor refrigeration sheet in thermal conductive connection with the thermal conduction case can provide heating.

Further, referring to FIGS. 4 to 6, the portable temperature adjustment device 10 further includes a first thermal conductive connecting member 11 thermally conductively connected between the thermal conduction case and the temperature adjustment component 16. Therefore, the thermal conductive connection effect between the temperature adjustment component 16 and the thermal conduction case can be improved.

Specifically, the temperature adjustment component 16 and the thermal conduction case are usually made of metal, plastic, or other rigid materials, so the direct contact between the temperature adjustment component 16 and the thermal conduction case may not be tight, which would reduce the heat transfer efficiency between them. The first thermal conductive connecting member 11 can be made of materials such as thermal conductive silicone, etc. A tight connection between the temperature adjustment component 16 and the thermal conduction case can be achieved through the first thermal conductive connecting member 11 disposed between the thermal conduction case and the temperature adjustment component 16, which improves the thermal conduction efficiency between the temperature adjustment component 16 and the thermal conduction case.

Further, referring to FIGS. 2 to 5, the air passage opening 126 is arranged at the upper side of the thermal conduction case in the height direction of the device 10, and the temperature adjustment component 16 is arranged at one end of the thermal conduction case. This allows the ventilation ports 124 corresponding to the air inlets 184 to be arranged at both the inner and outer sides of the thermal conduction case, thereby increasing the air intake volume per unit time of the fan chamber 122.

Further, referring to FIGS. 4 to 6, the portable temperature adjustment device 10 further includes a heat dissipation assembly 15 arranged in the receiving cavity 182. The heat dissipation assembly 15 is in thermal conductive connection with the side of the temperature adjustment component 16 away from the thermal conduction case. When the temperature adjustment component 16 provides cooling, the heat dissipation assembly 15 can dissipate the heat generated by the temperature adjustment component 16 during the cooling process of the temperature adjustment component 16.

Specifically, referring to FIGS. 4 to 6, the side of the heat dissipation assembly 15 away from the temperature adjustment component 16 is adjacent to the end of the housing 18, and the end of the housing 18 defines a heat dissipation port 185 at a position adjacent to the heat dissipation assembly 15. The heat dissipation port 185 is configured to dissipate the heat to outside the housing 18 and prevent the heat from accumulating inside the housing 18, thereby facilitating heat dissipation and improving the cooling effect of the portable temperature adjustment device 10.

Furthermore, referring to FIGS. 4 to 6, the heat dissipation assembly 15 includes a heat dissipator 152 and a heat dissipation fan 154. The heat dissipator 152 is in thermal conductive connection with the temperature adjustment component 16, and the heat dissipation fan 154 is arranged between the heat dissipator 152 and the housing 18. The heat dissipation fan 154 can improve the heat dissipation effect of the heat dissipation assembly 15, and the heat dissipator 152 can facilitate transferring the heat generated by the temperature adjustment component 16 to the outside of the housing 18.

Moreover, referring to FIGS. 4 to 6, the heat dissipator 152 includes heat dissipation fins 1522 with channels formed between adjacent fins and a heat dissipation base 1524 connected to one side of the heat dissipation fins 1522. The heat dissipation fan 154 is arranged between the heat dissipation base 1524 and the housing 18 and adjacent to the heat dissipation fins 1522. When the heat dissipation fan 154 is in operation, it draws external air from an air intake port 187 of the housing 18 and blows it towards the heat dissipation fins 1522. The external air flows along the channels formed between adjacent heat dissipation fins 1522, exchanges heat with the heat dissipation fins 1522, and then is discharged out of the housing 18 through the heat dissipation port 185.

Specifically, the heat dissipator 152 can be made of materials such as copper alloy, aluminum alloy, or other materials conducive to heat conduction. The surface of the heat dissipation fins 1522 can be provided with structures such as stripes or multiple grooves to increase the surface area of the heat dissipation fins 1522, thereby improving the heat exchange efficiency between the heat dissipation fins 1522 and the external air.

Moreover, referring to FIGS. 4 to 6, the portable temperature adjustment device 10 further includes a second thermal conductive connecting member 13 thermally conductively connected between the temperature adjustment component 16 and the heat dissipation assembly 15. The second thermal conductive connecting member 13 can improve the thermal conduction efficiency between the temperature adjustment component 16 and the heat dissipation assembly 15. The material of the second thermal conductive connecting member 13 can be referred to the aforementioned first thermal conductive connecting member 11, so it is not repeated here.

Furthermore, referring to FIG. 1 and FIGS. 4 to 6, the housing 18 includes a first housing portion 1802 and a second housing portion 1804 that are arranged face to face and connected to each other. The ends of the first housing portion 1802 and the second housing portion 1804 that are close to each other are connected together, and the first housing portion 1802 and the second housing portion 1804 enclose a wearing space 1806 and the first housing portion 1802 and the second housing portion 1804 are distributed along the circumferential direction of the wearing space 1806. Each of the free ends of the first housing portion 1802 and the second housing portion 1804 that are away from each other defines heat dissipation ports 185 and air intake ports 187. The heat dissipation ports 185 are arranged corresponding to the heat dissipators 152, and the air intake ports 187 are arranged corresponding to the heat dissipation fans 154. Both the first housing portion 1802 and the second housing portion 1804 have one receiving cavity 182.

Referring to FIG. 4 and FIG. 1, the heat dissipation ports 185 and the air intake ports 187 are arranged at the free ends of the first housing portion 1802 and the second housing portion 1804. Specifically, the heat dissipation ports 185 and the air intake ports 187 are defined at surfaces, not facing the wearing space 1806, of the free ends of the first housing portion 1802 and the second housing portion 1804. When the user wears the portable temperature adjustment device 10 on the body, such as the neck, and uses it for cooling, the heat dissipation ports 185 and the air intake ports 187 do not face the neck of the human body. Therefore, when the heat dissipation assembly 15 exchanges heat with the external environment through the air intake ports 187 and heat dissipation ports 185, the hot airflow dissipated by the heat dissipation assembly 15 will not directly blow toward the user.

Specifically, referring to FIG. 1, the ends of the first housing portion 1802 and the second housing portion 1804 that are close to each other are connected, for example, by a connecting section 1808. The first housing portion 1802, the connecting section 1808 and the second housing portion 1804 are arranged around the wearing space 1806 to cooperatively delimit the wearing space 1806. The structures of the first housing portion 1802 and the second housing portion 1804 are substantially the same. Specifically, the first housing portion 1802 and the second housing portion 1804, for example, each comprises the structures such as the receiving cavity 182, the thermal conduction case, the fan 14, the temperature adjustment component 16, the heat dissipation assembly 15, the first thermal conductive connecting member 11, and the second thermal conductive connecting member 13. Referring to FIGS. 1 and 5, the first housing portion 1802 and the second housing portion 1804, for example, each comprise the first sub-housing 181 and the second sub-housing 183, and each of the first housing portion 1802 and the second housing portion 1804 is formed by the first sub-housing 181 and the second sub-housing 183 being assembled together. When the portable temperature adjustment device 10 is, for example, a neck-hanging fan, the user can wear the portable temperature adjustment device 10 as shown in FIG. 1 around the neck of the user through the wearing space 1806. The portable temperature adjustment device 10 can provide airflow to both sides of the user's neck, and the hot airflows discharged by the heat dissipation assembly 15 are discharged from the heat dissipation ports 185 as shown in FIG. 1.

As shown in FIGS. 7 to 9, a portable temperature adjustment device 10 in accordance with a second embodiment of the application differs from the first embodiment in that: the thermal conduction component 12 is arranged on the housing 18 and exposed on the surface of the housing 18. The ventilation port 124 can act as intake port or exhaust/discharge port of the fan 14.

In this embodiment, the housing 18 can delimit a wearing space 1806, and the thermal conduction component 12 is arranged on a side of the housing 18 facing the wearing space 1806. In other embodiments, the housing 18 can, for example, include a connecting section 1808 and a first housing portion 1802 and a second housing portion 1804 respectively arranged at opposite ends of the connecting section 1808. The thermal conduction components 12 can be arranged on the sides of the first housing portion 1802 and the second housing portion 1804 facing the wearing space 1806, or on the sides of the first housing portion 1802, the second housing portion 1804, and the connecting section 1808 facing the wearing space 1806. The thermal conduction component 12 can also be arranged only on the first housing portion 1802, or only on the second housing portion 1804, or only on the connecting section 1808. Arrangement of the thermal conduction component 12 is not limited here. The connecting section 1808 with elastic resilience is arranged between the first housing portion 1802 and the second housing portion 1804, such that the thermal conduction component 12 mounted on the housing 18 can be kept in a state that the thermal conduction component 12 fits the human neck.

In a preferred embodiment, the portable temperature adjustment device 10, for example, further includes an air guiding portion 30. The air guiding portion 30 can be arranged corresponding to the ventilation port 124 and located inside the housing 18. The air guiding portion 30 is configured to direct the airflow generated by the fan 14 towards the ventilation port 124 for blowing out. In this embodiment, the air guiding portion 30 can be, for example, an air guide plate. The air guide plate can be arranged in the housing 18. In other embodiments, the air guide plate can also be arranged on other structures, for example, on the thermal conduction component 12. The specific connection way of the air guiding portion 30 can be designed according to actual needs and is not limited here.

As shown in FIGS. 7 and 8, in this embodiment, the first housing portion 1802 and the second housing portion 1804 each may include a first sub-housing 181 and a second sub-housing 183, where the second sub-housing 183 faces the wearing space 1806 and can also be named as inner sub-housing, and the first sub-housing 181 faces away from the wearing space 1806 and can also be named as outer sub-housing. The first sub-housing 181 and the second sub-housing 183 are connected to each other to form the first housing portion 1802 or the second housing portion 1804. One end, for example, the outer end of the air guiding portion 30 extends to a position near the fan 14, and the other end, for example, the inner end, of the air guiding portion 30 extends to a side of the ventilation port 124 away from the fan 14. The air guiding portion 30 extends from the second sub-housing 183 towards the first sub-housing 181 inclinedly. In a thickness direction of the housing from outside to inside, the distance between the air guiding portion 30 and the free end of the first housing portion 1802 or the second housing portion 1804 increase gradually, which facilitates the airflow generated by the fan 14 being better gathered to the ventilation port 124, so that more parts of the airflow pass through the ventilation port 124, allowing the airflow to be discharged along the thermal conduction component 12 through the ventilation port 124. This enables the user to receive more airflow and improves the user experience.

FIG. 9 illustrates another thermal conduction component 12 which comprises two ventilation ports 124, i.e., a first ventilation port 1241 and a second ventilation port 1242. The first ventilation port 1241 acts as one of the intake port of the fan 14 and the exhaust port of the fan 14. The second ventilation port 1242 acts as the other of the intake port of the fan and the exhaust port of the fan 14. This allows the airflow generated by the fan 14 to be heated up or cooled down twice during the process of being drawn in through the first ventilation port 1241 and blown out through the second ventilation port 1242, further enhancing the user experience.

Preferably, the thermal conduction component 12 can, for example, be provided with an air-blockage prevention structure 40 which is exposed and protrudes from the surface of the housing 18. In this embodiment, the air-blockage prevention structure 40 can be, for example, a plurality of spaced-apart protruding portions. The protruding portions can be strip-shaped protrusions, block-shaped protrusions, or protrusions of other shapes, which are not specifically limited here. The ventilation port 124 can be arranged, for example, at the bottoms of the grooves formed between adjacent two protruding portions, so that when the portable temperature adjustment device 10 is worn on a part of the human body, there is a gap formed between the human skin and the ventilation port 124, preventing the ventilation port 124 from being blocked by the body of the user.

Preferably, the plurality of protruding portions arranged on the thermal conduction component 12 may extend along the length/circumferential direction of the housing 18. With this arrangement, when the user wears the portable temperature adjustment device 10, the plurality of protruding portions can surround and contact the body of the user, increasing the contact area between the body of the user and the protruding portions. This prevents user discomfort and maintains a good user experience.

In other embodiments, the air-blockage prevention structure 40 can also be a recessed structure with grooves arranged on the thermal conduction component 12, and the ventilation port 124 is correspondingly arranged at the bottom of the grooves. With this arrangement, when the user wears the portable temperature adjustment device 10, the recessed structure with grooves can keep a distance between the ventilation port 124 and the human body. Moreover, airflow can also be drawn in or blown out from opposite ends of the grooves, improving the user experience.

In this embodiment, the air-blockage prevention structure 40 is arranged on the thermal conduction component 12, so that when the portable temperature adjustment device 10 is worn on the user, it can better fit the human body for temperature adjustment, and also make the airflow blown out by the portable temperature adjustment device 10 to flow more smoothly. Furthermore, the ventilation port 124 of the thermal conduction component 12 may not be able to ventilate if the portable temperature adjustment device 10 fits the human body too closely or tightly. By setting the air-blockage prevention structure 40 with a plurality of spaced-apart protruding portions or grooves on the thermal conduction component 12, the ventilation port 124 of the thermal conduction component 12 can be prevented from being blocked, thereby improving the user experience.

In a preferred implementation of this embodiment, the housing 18 further comprises an air duct 50 arranged therein, and the air guiding portion 30 is arranged at one end of the air duct 50. The air duct 50 comprises a first partitioning portion 52, which is, for example, a baffle plate connected to the air guiding portion 30. By setting the air guiding portion 30 and the first partitioning portion 52 on the air duct 50, a first ventilation air path 501 and a second ventilation air path 502 are respectively formed inside the housing 18. The housing 18 is further provided with a heat dissipation port 185. The first ventilation air path 501 is configured to direct the airflow generated by the fan 14 to the ventilation port 124 for blowing out. The second ventilation air path 502 is configured to direct the airflow generated by the fan 14 to the heat dissipation port 185 for discharge. In this embodiment, by setting the air guiding portion 30 and the first partitioning portion 52 on the air duct 50, the space inside the housing 18 is divided into two air paths. This allows the airflow generated by the fan 14 to be discharged separately through these two ventilation air paths. The first ventilation air path 501 allows the airflow generated by the fan 14 to pass through the ventilation port 124, then be temperature-adjusted by the thermal conduction component 12, and then be discharged and flow along the length direction of the housing 18 towards human body parts such as the neck of the user. The second ventilation air path 502 allows the airflow generated by the fan 14 to pass through the interior of the housing 18 and then reach the heat dissipation port 185. A heat dissipator 152 can be arranged in the second ventilation air path 502. The heat dissipator 152 is arranged corresponding to the heat dissipation port 185. In other embodiments, the heat dissipator 152 can be provided with a plurality of heat dissipation fins, and a heat dissipation channel is formed between adjacent two heat dissipation fins. The heat dissipator 152 may include, for example, a heat dissipation base which can be in thermal contact with the temperature adjustment component 16. For example, when the temperature adjustment component 16 is a semiconductor refrigeration sheet, the heat dissipator 152 is in thermal contact with the hot side surface of the semiconductor refrigeration sheet through the heat dissipation base thereof. During the operation of the semiconductor refrigeration sheet, the cold side surface of the semiconductor refrigeration sheet generates cooling energy which is transmitted to the skin surface of the human neck through the thermal conduction component 12 to cool the human body. The heat generated on the hot side surface of the semiconductor refrigeration sheet can be transmitted to the heat dissipator 152 and dissipated to the external environmental via the heat dissipation port 185 and the heat dissipation channels of the heat dissipator 152. This is not specifically limited here.

As shown in FIGS. 10 to 11, a portable temperature adjustment device 10 in accordance with a third embodiment of the application differs from the second embodiment in that: the housing 18 can, for example, be provided with a heat dissipation port 185 and an air outlet 186.

The air guiding portion 30 is connected to the second sub-housing 183. A first ventilation air path 501 is formed between the end of the air guiding portion 30 close to the fan 14 and the second sub-housing 183. A first gap 54 exists between the lower side of the air guiding portion 30 and the lower side of the housing 18, and a second gap 56 exists between the upper side of the air guiding portion 30 and the upper side of the housing 18. The “lower side” and “upper side” here are defined relative to the height direction Y (see FIG. 30) of the portable temperature adjustment device 10 when the portable temperature adjustment device 10 is worn on a human body.

The air duct 50 further comprises a second partitioning portion 58, which can be, for example, a partition plate. The second partitioning portion 58 divides the space inside the housing 18 into a second ventilation air path 502 and a third ventilation air path 503. The second gap 56, the second ventilation air path 502, and the air outlet 186 are in fluid communication with one another. The first gap 54, the third ventilation air path 503, and the heat dissipation port 185 are in fluid communication with one another.

In this embodiment, the housing 18 have the first ventilation air path 501, the second ventilation air path 502, and the third ventilation air path 503 formed therein. The first ventilation air path 501 allows the airflow generated by the fan 14 to pass through the ventilation port 124, be temperature-adjusted by the thermal conduction component 12, and then be discharged and flow along the length direction of the housing 18 towards human body parts such as the neck of the user. The second ventilation air path 502 allows the airflow generated by the fan 14 to be directly discharged to the air outlet 186 through the second gap 56 and blown towards human body parts such as the face of the user. The third ventilation air path 503 allows the airflow generated by the fan 14 to be blown towards the heat dissipation port 185 through the first gap 54.

In this embodiment, by forming the first gap 54 and the second gap 56 between the air guiding portion 30 and the housing 18, and setting the second partitioning portion 58 on the air duct 50, the airflow inside the portable temperature adjustment device 10 can be divided into three branches: one branch of blowing from the ventilation port 124 towards the neck of the user, one branch of blowing out from the air outlet 186 towards the face of the user, and one branch of blowing out from the heat dissipation port 185 to dissipate heat for the structures mounted inside the portable temperature adjustment device 10.

As shown in FIGS. 12 and 13, a portable temperature adjustment device 10 in accordance with a fourth embodiment of the application differs from the third embodiment in that: the portable temperature adjustment device 10 further includes, for example, a second fan 60. By setting the second fan 60 additionally to dissipate heat for the heat dissipator 152, both the first sub-housing 181 and the air duct 50 define second air inlets 188 corresponding to the second fan 60.

Through the above arrangement, the airflow generated by the fan 14 only needs to pass through the first ventilation air path 501, then through the ventilation port 124, be temperature-adjusted by the thermal conduction component 12, and then be discharged and flow along the length direction of the housing 18 towards human body parts such as the neck, and also be discharged from the second ventilation air path 502 through the air outlet 186.

As shown in FIGS. 14 to 16, a portable temperature adjustment device 10 in accordance with a fifth embodiment of the application differs from the second embodiment in that:

Specifically, a rear neck protruding portion extends and protrudes downward from the connecting section 1808 of the housing 18. The thermal conduction component 12 is arranged on the side of the connecting section 1808 facing the wearing space 1806. The thermal conduction component 12 can be arranged on the connecting section 1808 and the rear neck protruding portion. The thermal conduction component 12 defines multiple ventilation ports 124, including a first ventilation port 1241, a second ventilation port 1242, a third ventilation port 1243, and a fourth ventilation port 1244.

Multiple fans 14 can be arranged inside the connecting section 1808. In this embodiment, two fans 14 are used as an example for description. The two fans 14 can be mounted at opposite ends of the connecting section 1808 at an interval, or on opposite sides of the connecting section 1808. The specific positions of the fans 14 can be adjusted according to actual needs and are not limited here. One of the fans 14 corresponds to the first ventilation port 1241 and the second ventilation port 1242 and the airflow generated by the fan 14 enters the connecting section 1808 from the first ventilation opening 1241 and then blows out of the connecting section 1808 from the second ventilation opening 1242. The other fan 14 corresponds to the third ventilation opening 1243 and the fourth ventilation opening 1244 and the airflow generated by the other fan 14 enters the connecting section 1808 from the third ventilation opening 1243 and then blows out of the connecting section 1808 from the fourth ventilation opening 1244.

A fourth ventilation air path 504 and a fifth ventilation air path 505 are arranged inside the connecting section 1808. The fourth ventilation air path 504 is connected to the third ventilation opening 1243 and the fourth ventilation opening 1244. The fifth ventilation air path 505 is connected to the first ventilation opening 1241 and the second ventilation opening 1242.

Two air guiding portions 30 are arranged inside the connecting section 1808. One air guiding portion 30 is configured to guide the airflow generated by one fan 14 towards the fourth ventilation port 1244 for blowing out, and the other air guiding portion 30 is configured to guide the airflow generated by the other fan 14 towards the second ventilation opening 1242 for blowing out. Preferably, the second ventilation opening 1242 and the fourth ventilation port 1244 are offset from each other in the circumferential direction and the height direction of the portable temperature adjustment device 10, which facilitates increasing the distance between the second ventilation opening 1242 and the fourth ventilation port 1244 and improving temperature regulation effect.

In a preferred implementation of this embodiment, the side of the thermal conduction component 12 close to the wearing space 1806 is provided with an air-blockage prevention structure 40. Specifically, the air-blockage prevention structure 40 comprises a plurality of protruding portions distributed at intervals. The multiple protruding portions can be strip-shaped protrusions, block-shaped protrusions, or protrusions of other shapes, which are not specifically limited here. The multiple protruding portions can be distributed at intervals along the height direction of the connection section 1808 and each protruding portion extends along the length direction of the connecting section 1808.

In other embodiments, the air-blockage prevention structure 40 can also be multiple grooves arranged on the thermal conduction component 12, and the ventilation port 124 is correspondingly defined at the bottom of the grooves. With this arrangement, when the user wears the portable temperature adjustment device 10, the multiple grooves can keep a distance between the ventilation port 124 and the human body part. Moreover, the airflow can also be drawn in or blown out from opposite ends of the grooves, improving the user experience.

As shown in FIGS. 17 to 26, a portable temperature adjustment device 10 in accordance with a sixth embodiment of the application differs from the second embodiment in that: the connecting section 1808 of the housing 18 can, for example, include a first sub-housing 181 and a second sub-housing 183. The first sub-housing 181 and the second sub-housing 183 can, for example, cooperate to form a receiving cavity 182. The fan 14, the temperature adjustment component 16, and the thermal conduction component 12 can be arranged in the receiving cavity 182.

The thermal conduction component 12 is arranged on the outer surface of the second sub-housing 183 and located on one side of the wearing space 1806. The thermal conduction component 12 has an arc-shaped structure and includes a thermal conduction portion 12A and two extension portions 12B. The thermal conduction portion 12A is in thermal conductive connection with the temperature adjustment component 16. The two extension portions 12B respectively extend from opposite ends of the thermal conduction portion 12A beyond the temperature adjustment component 16. When the portable temperature adjustment device 10 is worn on the user's body, the thermal conduction component 12 contacts the user's skin to provide cooling or heating to the user. The second sub-housing 183 is provided with an avoidance portion 18C corresponding to the thermal conduction portion 12A. The avoidance portion 18C can be, for example, a through-hole, so that the thermal conduction portion 12A can pass through the avoidance portion 18C to be in thermal conductive connection with the temperature adjustment component 16, or the temperature adjustment component 16 passes through the avoidance portion 18C to be in thermal conductive connection with the thermal conduction portion 12A.

The thermal conduction component 12 further comprises two sets of ventilation ports 124, corresponding to the two fans 14 respectively. Each set of ventilation port 124 comprises at least two ventilation ports 124. The second sub-housing 183 defines air outs 18D corresponding to the ventilation ports 124 respectively. The air guiding portions 30 are inclined and extend towards the thermal conduction portion 12A. The ventilation ports 124 are connected to the air outlet portion 142 of the fan 14 through the air guiding portions 30. The ventilation ports 124 can specifically be arranged, for example, on the extension portions 12B. The two sets of ventilation ports 124 are located on opposite sides of the thermal conduction portion 12A, i.e., the two sets of ventilation ports 124 are arranged on the two extension portions 12B respectively. When the temperature adjustment component 16 and the fans 14 are working, the airflows generated by the fans 14 are discharged through the two sets of ventilation ports 124. Since the two sets of ventilation ports 124 are located at the extension portions 12B on opposite ends of the temperature adjustment component 16, the airflow passing through the ventilation ports 124 can be blowed towards the area corresponding to the temperature adjustment component 16 as much as possible. For example, a part of the airflow flows towards the middle of the temperature adjustment component 16, thereby dispersing the cold air in the area corresponding to the temperature adjustment component 16. Since the thermal conduction portion 12A has the lowest temperature and causes the most severe sweating effect, the above arrangement effectively solves the sweating problem caused by the contact between the thermal conduction portion 12A and the skin of the user. Furthermore, the ventilation ports 124 are located at the extension portions 12B, allowing the airflow to blow onto the entire thermal conduction component 12 as much as possible, further solving the sweating problem in some area of the thermal conduction component 12 and improving the user experience.

The portable temperature adjustment device 10 provided in this embodiment includes the housing 18, the fans 14, the temperature adjustment component 16, and the thermal conduction component 12. The thermal conduction component 12 is arranged on the outer surface of the housing 18 facing the wearing space 1806. The thermal conduction component 12 includes the thermal conduction portion 12A and the extension portions 12B. The thermal conduction portion 12A is in thermal conductive connection with the temperature adjustment component 16. The two sets of ventilation port 124 are arranged on the extension portions 12B, connected to the air outlet portions 142 of the fans 14, and located at opposite ends of the thermal conduction portion 12A. Since the ventilation ports 124 are defined in the extension portions 12B of the thermal conduction component 12, the airflow generated by the fans 14 can pass through the ventilation ports 124 at opposite ends of the temperature adjustment component 16, and then be blown to the thermal conduction portion 12A corresponding to the temperature adjustment component 16. Since the thermal conduction portion 12A of the thermal conduction component 12 corresponding to the temperature adjustment component 16 has the lowest temperature and causes the most severe sweating effect, by setting the ventilation ports 124 in the thermal conduction component 12, the airflows generated by the fans 14 can be blown out from the extension portions 12B and then towards the center of the thermal conduction portion 12A. The airflows generated by the fans 14 can effectively blow to the entire thermal conduction component 12, especially the thermal conduction portion 12A, thereby reducing sweating and improving the user experience.

In other embodiments, the temperature adjustment component 16 can generate heat which is transferred to the thermal conduction component 12, resulting in hot air being blown out from the ventilation ports 124.

The side of the thermal conduction component 12 facing the wearing space 1806 can also be provided with an air-blockage prevention structure 40. The air-blockage prevention structure 40 can include multiple protruding portions arranged at intervals, or can be a single protruding portion, which is not limited in this embodiment. In one optional implementation of this embodiment, the air-blockage prevention structure 40 can be located between the two sets of ventilation ports 124. In another optional implementation of this embodiment, one air-blockage prevention structure 40 is arranged adjacent to each set of ventilation ports 124. The air-blockage prevention structure 40 is capable of preventing the ventilation ports 124 from directly contacting the skin of the user, thereby avoiding airflow obstruction or reduced ventilation effectiveness.

Further, airflow blown from each set of ventilation ports 124 is directed toward the thermal conduction portion 12A, which facilitates the airflow blown out from the ventilation ports 124 flowing toward the center of the thermal conduction portion 12A from the extension portions 12B as much as possible. The airflow blown by the fans 14 can effectively flow to the entire thermal conduction component 12, especially the thermal conduction portion 12A, thereby reducing sweating and improving the user experience.

The portable temperature adjustment device 10 can further include air ducts 50 arranged inside the housing 18, specifically in the receiving cavity 182. The number of the air ducts 50 can be two. Two air ducts 50 are located at opposite sides of the temperature adjustment component 16 respectively in the circumferential direction of the device 10. A ventilation air passage 510 is also arranged in the receiving cavity 182. At least part of the air duct 50 forms the ventilation air passage 510. Specifically, the ventilation air passage 510 is arranged inside the air duct 50, or the ventilation air passage 510 is enclosed and formed cooperatively by the air duct 50 and the housing 18. The air duct 50 and the second sub-housing 183 form the ventilation air passage 510. Optionally, one end of the ventilation air passage 510 is connected to the air outlet portion 142 of the fan 14, and the other end is connected to the ventilation ports 124 such that the airflow output from the air outlet portion 142 of the fan 14 can flow to the ventilation ports 124 via the ventilation air passage 510. The air duct 50 can further comprise a fan mounting portion 520, and the fan 14 is mounted on the fan mounting portion 520. The ventilation air passage 510 can be located on the side of the air duct 50 facing the wearing space 1806 and extends along the direction from the air outlet portion 142 to the temperature adjustment component 16 to form a curved structure. Similarly, the ventilation air passage 510 is inclined in the direction from the air outlet portion 142 towards the thermal conduction portion 12A. Two sets of air passages 510 are provided corresponding to the two sets of ventilation ports 124 in a one-to-one correspondence. This causes the two sets of air passages 510 to be inclined relative to each other, making the airflows blown from the ventilation ports 124 on opposite sides of the temperature adjustment component 16 blow from the extension portions 12B towards the center of the thermal conduction portion 12A. The airflows generated by the fans 14 can effectively blow onto the entire thermal conduction component 12, further increasing the area of the thermal conduction component 12 blown by the airflows. Thus, the cold air in the area corresponding to the temperature adjustment component 16 can be dispersed, avoiding the sweating problem caused by contact between the region of the thermal conduction component 12 corresponding to the temperature adjustment component 16 and the skin, and improving the user experience. Preferably, the two sets of air passages 510 are symmetrically arranged about the centerline of the thermal conduction portion 12A.

The second sub-housing 183 can further comprise air guiding portions 30 arranged in the ventilation air passage 510. The air guiding portion 30 can be curved ribs which extend from the end close to the air outlet portions 142 of the fans 14 to the ventilation ports 124, so that the direction of the airflow flowing out of the ventilation ports 124 is inclined towards the thermal conduction portion 12A. The air guiding portions 30 can be located in the air passages 510. By setting the air guiding portions 30, the airflow can flow more smoothly in the air passages 510. The air guiding portions 30 extends from the end close to the air outlet portion 142 to the ventilation ports 124, such that the airflow output from the air outlet portion 142 of the fan 14 can be guided by the air guiding portions 30 and then be blown out from the ventilation port 124, making the airflow pass through the ventilation air passage 510 more smoothly and improving control of the airflow direction. In one implementation of this embodiment, there are three air guiding portions 30, spaced apart along the length/circumferential direction of the second sub-housing 183. Each air guiding portion 30 is inclined in a direction from the air outlet portion 142 towards the second sub-housing 183, and each air guiding portion 30 has an arc-shaped structure. By setting the arc-shaped air guiding portions 30, the smoothness of the airflow can be further improved, thereby enhancing the air output performance. Specifically, the air guiding portions 30 have arc-shaped air guiding surfaces forming concaved portions. The openings of the concaved portions face the wearing space 1806. Taking the direction towards/away from the wearing space 1806 as the thickness direction T of the portable temperature adjustment device 10, in this thickness direction T as shown in FIG. 21, the air outlet portions 142 of the fans 14 are offset from the ventilation ports 124, for example, the air outlet portions 142 are farther from the wearing space 1806 than the ventilation ports 124. The concave surfaces of the air guiding portions 30 face the wearing space 1806, causing the airflow blown from the fans 14 to flow along the air guiding trajectory of the concave surfaces of the air guiding portions 30 to the ventilation ports 124, making the airflow flow more smoothly and less prone to turbulence.

Further, each set of ventilation ports 124 can include two ventilation ports 124. The first ends of the air guiding portions 30 are connected to the second sub-housing 183, and the second ends of the air guiding portions 30 extend towards the air outlet portions 142 of the corresponding fans 14. The thickness of the air guiding portions 30 gradually decreases from the first end to the second end. Thus, the width of the airflow paths formed between adjacent air guiding portions 30 decreases in a direction from the air outlet portion 142 of the fan to the second sub-housing 183. Each ventilation port 124 is located between adjacent two air guiding portions 30. With this arrangement, the air guiding portions 30 can divide the ventilation air passage 510 into two sub-air ducts each being connected to one corresponding ventilation port 124. The thickness of the air guiding portions 30 gradually decreases from the first end to the second end, which facilitates concentration of the airflow blown from each ventilation port 124, thereby enhancing the airflow outputting effect.

In one implementation of this embodiment, two fans 14 are provided, correspondingly two air ducts 50 and two sets of ventilation ports 124 are provided. Each fan 14 corresponds to one set of ventilation ports 124. The two fans 14 are respectively located at opposite ends of the temperature adjustment component 16, and each set of ventilation ports 124 is located between the temperature adjustment component 16 and the corresponding fan 14. The two fans 14 both can blow air to the thermal conduction component 12 through the ventilation ports 124, increasing the area of the thermal conduction component 12 covered by the airflow, improving the air outputting effect, further reducing sweating, and enhancing the user experience. Further, two ventilation air passage 510 are arranged in the receiving cavity 182. The opposite ends of each ventilation air passage 510 are connected to the fan 14 and the ventilation ports 124 respectively. The two air ducts 510 are located on opposite sides of the thermal conduction portion 12A respectively.

The portable temperature adjustment device 10 provided in this embodiment can further include a heat dissipator 152 arranged on one side of the temperature adjustment component 16 away from the thermal conduction component 12. The air duct 50 can further include a heat dissipation air passage 530 and a partition plate 540 located between the ventilation air passage 510 and the heat dissipation air passage 530. Specifically, the air duct 50 and the first sub-housing 181 cooperatively form the heat dissipation air passage 530. The ventilation air passage 510 and the heat dissipation air passage 530 are separated by the partition plate 540. The fan 14 blows air from the air outlet portion 142 towards the ventilation air passage 510 and the heat dissipation air passage 530 respectively. One end of the heat dissipation air passage 530 is connected to the fan 14, and the other end is connected to the heat dissipator 152. The first sub-housing 181 can further defines a heat dissipation port 185 and an air inlet 184. The air inlet 184 can be arranged corresponding to the fan 14, for example, the air inlet 184 is at least partly aligned with the fan 14. The heat dissipation port 185 can be arranged corresponding to the heat dissipator 152, for example, the heat dissipation port 185 is at least partly aligned with the heat dissipator 152. The heat dissipation port 185 can comprises a plurality of heat dissipation holes. The airflow generated by the fan 14 can pass through the heat dissipation air passage 530, then through the heat dissipator 152, and be blown out from the heat dissipation port 185, achieving a heat dissipation effect. The partition plate 540 is capable of separating the ventilation air passage 510 and the heat dissipation air passage 530, improving the air blowing effect and heat dissipation effect. Moreover, by utilizing one single fan 14, both heat dissipation function and airflow output function can be achieved. Preferably, two heat dissipators 152 are provided and correspond to the fans 14 in a one-to-one correspondence. The two heat dissipators 152 are distributed in the height direction of the device 10. The two heat dissipators 152 are provided corresponding to the heat dissipation ports 185 respectively.

Further, the partition plate 540 can extend in a direction from the air outlet portion 142 towards the thermal conduction portion 12A. The ventilation air passage 510 is located on the side of the partition plate 540 close to the wearing space 1806. The heat dissipation air passage 530 is located on the side of the partition plate 540 away from the wearing space 1806. In one implementation of this embodiment, the partition plate 540 has an arc-shaped structure, which can have the same curvature as that of the arcuate air guiding portions/ribs 30. The partition plate 540 is inclined in the direction from the air outlet portion 142 towards the wearing space 1806, such that the volume of the heat dissipation air passage 530 is larger than that of the ventilation air passage 510, allowing the heat dissipator 152 to have a larger volume to thereby improve the heat dissipation efficiency. The partition plate 540 is designed as an arc-shaped structure, which improves airflow smoothness.

The first housing portion 1802 and the second housing portion 1804 can be rotatably connected to opposite ends of the connecting section 1808, and the structures of the first housing portion 1802 and the second housing portion 1804 can be the same. Taking the structure of the first housing portion 1802 as an example, a circuit board 10A and a battery 10B are arranged inside the first housing portion 1802. The fan 14, the temperature adjustment component 16, and the battery 10B are electrically connected to the circuit board 10A respectively.

As shown in FIGS. 27 and 28, a portable temperature adjustment device 10 in accordance with a seventh embodiment of the application differs from the sixth embodiment in that: two groups of fans 14 are provided and located at opposite ends of the temperature adjustment component 16 respectively. Each group of fans 14 can include a first sub-fan 14A and a second sub-fan 14B. The first sub-fan 14A is connected to the heat dissipation air passage 530, and the second sub-fan 14B is connected to the ventilation air passage 510. By setting the first sub-fan 14A and the second sub-fan 14B, the user can control the startup of the first sub-fan 14A and/or the second sub-fan 14B, thereby achieving multiple operation modes: the mode of only heat dissipation, the mode of only blowing cold air, or the mode of both heat dissipation and blowing cold air, improving the user experience.

As shown in FIGS. 29 to 34, a portable temperature adjustment device 10 in accordance with an eighth embodiment of this application differs from the sixth embodiment in that: the air ducts 50 include a first air duct 50A and a second air duct 50B with different structures. The heat dissipation air passage 530 is only arranged on the first air duct 50A, and the ventilation air passage 510 is only arranged on the second air duct 50B. The first air duct 50A and the second air duct 50B are arranged on opposite sides of the temperature adjustment component 16. The temperature adjustment component 16 passes through the avoidance portion 18c to contact with the thermal conduction component 12 and the heat dissipator 152 is attached to an outer side of the temperature adjustment component 16 opposite to the thermal conduction component 12. The first sub-housing 181 of the connecting section 1808 is only provided with a heat dissipation port 185 corresponding to the first air duct 50A, allowing the airflow generated by the fan 14 arranged in the first air duct 50A to enter the connecting section 1808 via the air inlet 184, pass through the heat dissipation air passage 530, then through the heat dissipator 152, and be blown out from the heat dissipation port 185, achieving a heat dissipation effect. The thermal conduction component 12 is only provided with the ventilation port 124 corresponding to the second air duct 50B, and the second sub-housing 183 is only provided with air outlets 18D corresponding to the second air duct 50B, allowing the airflow generated by the fan 14 arranged in the second air duct 50B to pass through the ventilation air passage 510, then through the air outlets 18D, and be blown out from the ventilation ports 124, achieving the effect of blowing cold or hot air.

The air-blockage prevention structure 40 and the ventilation port 124 are distributed in the height direction Y of the portable temperature adjustment device 10. Optionally, two ventilation ports 124 are provided and spaced apart in the length/circumferential direction of the portable temperature adjustment device 10. The air-blockage prevention structure 40 can be located above and/or below the ventilation port 124.

As shown in FIGS. 35 to 51, a portable temperature adjustment device 10 in accordance with a ninth embodiment of this application differs from the sixth embodiment in that: each air duct 50 comprises a heat dissipation air passage 530 and a ventilation air passage 510 arranged on opposite sides along the thickness direction of the housing 18. Part of the airflow generated by the fan 14 flows towards the heat dissipation air passage 530, and another part the airflow flows towards the ventilation air passage 510. For example, the air duct 50 can comprises a double-layer volute. The fan 14 includes an outer fan blade group 144 and an inner fan blade group 146. The outer fan blade group 144 is configured to blow air towards the heat dissipation air passage 530, and the inner fan blade group 146 is configured to blow air towards the ventilation air passage 510.

When the fan 14 is in operation, the inner fan blade group 146 generates an airflow flowing into the ventilation air passage 510. The airflow exchanges heat with the thermal conduction component 12 mounted in the ventilation air passage 510. The thermal conduction component 12 lowers the temperature of the airflow, and the cooled airflow is then directed towards the user, reducing the ambient temperature and providing a cooling effect. The hot end of the temperature adjustment component 16 continuously generates heat. Simultaneously, the outer fan blade group 144 generates another airflow flowing into the heat dissipation air passage 530. The another airflow exchanges heat with the heat dissipator 152 mounted in the heat dissipation air passage 530, carrying the heat away from the heat dissipator 152 and promptly dissipating heat for the temperature adjustment component 16, ensuring the cooling effect.

In this embodiment of the application, the heat dissipator 152 includes a first heat dissipator 152A and a second heat dissipator 152B distributed along the circumferential direction of the portable temperature adjustment device 10 and spaced apart from each other. The first heat dissipator 152A is located near one fan 14, and the second heat dissipator 152B is located near the other fan 14. The first heat dissipator 152A and the second heat dissipator 152B are arranged at an angle to each other. That is, an angle is formed between the projectors of the first heat dissipator 152A and the second heat dissipator 152B in a plane parallel to the circumferential direction of the device 10. The portable temperature adjustment device 10 comprises a temperature adjustment component 16 and a thermal conduction component 12 corresponding to each of the first heat dissipator 152A and the second heat dissipator 152B. The air guiding portion 30 is located between the first heat dissipator 152A and the second heat dissipator 152B. The airflow generated by one fan 14 flows towards the first heat dissipator 152A and is then guided to the heat dissipation port 185 by the air guiding portion 30. The airflow generated by the other fan 14 flows towards the second heat dissipator 152B and is then guided to the heat dissipation port 185 by the air guiding portion 30. In this embodiment, the first heat dissipator 152A and the second heat dissipator 152B are two independent components. The air guiding portion 30 can be arranged on the first heat dissipator 152A or the second heat dissipator 152B, or the air guiding portion 30 can be a separate component independent of the first heat dissipator 152A and the second heat dissipator 152B. Of course, in other embodiments, the air guiding portion 30 can also be integrally formed with the first heat dissipator 152A and the second heat dissipator 152B.

Specifically, the housing 18 includes an air guiding member 300. The air guiding portion 30 is arranged in the middle of the air guiding member 300, and the heat dissipator 152 is mounted on the air guiding member 300. The air guiding portion 30 is located between the first heat dissipator 152A and the second heat dissipator 152B. The air guiding member 300 isolates the first heat dissipator 152A and the second heat dissipator 152B, preventing heat interference between the two heat dissipators. The adjacent first heat dissipator 152A and second heat dissipator 152B are blocked by the air guiding portion 30, which prevents collision between the airflows passing through the first heat dissipator 152A and the second heat dissipator 152B. In addition, each heat dissipator 152 can complete more heat dissipation cycles within a fixed time, i.e., shortening the overall heat dissipation cycle time and effectively improving the overall heat dissipation efficiency.

In this implementation of the application, the air guiding portion 30 includes a first air guiding surface 32 and a second air guiding surface 34. The first air guiding surface 32 faces the first heat dissipator 152A, and the second air guiding surface 34 faces the second heat dissipator 152B. The first air guiding surface 32 and the second air guiding surface 34 are arc-shaped. The arc-shaped first air guiding surface 32 and second air guiding surface 34 are more conducive to smoothly guiding the airflows to the heat dissipation port 185, avoiding noise generation.

In this implementation of the application, the surface of the heat dissipator 152 facing the heat dissipation port 185 is provided with a plurality of spaced heat dissipation fins 1522. Specifically, the heat dissipator 152 includes a heat dissipation base 1524 connected to the side of the temperature adjustment component 16 away from the wearing space 1806. The plurality of heat dissipation fins 1522 are located on the side of the heat dissipation base 1524 away from the temperature adjustment component 16 and are spaced apart so that channels are formed between adjacent fins 1522. The heat generated by the temperature adjustment component 16 is transferred to the heat dissipation base 1524 which then transfers the heat to the plurality of heat dissipation fins 1522. The fins 1522 increase the contact area between the airflow and the heat dissipator 152 and improve heat exchange efficiency.

In this implementation of the application, the thermal conduction component 12 is located on the side of the temperature adjustment component 16 close to the wearing space 1806 and is in thermal conductive connection with the cold end of the temperature adjustment component 16. The side of the connecting section 1808 close to the wearing space 1806 is formed with an air outlet 186 corresponding to the thermal conduction component 12. Part of the airflow generated by each fan 14 flows towards the heat dissipator 152, and another part flows towards the thermal conduction component 12 and then flows out from the air outlet 186.

The air outlet 186 is located on the side of the thermal conduction component 12 close to the wearing space 1806 and is connected to the ventilation air passage 510. The air outlet 186 can comprise, for example, a plurality of vertical strip-shaped through-holes, spaced apart from each other. The lengths of the vertical strip-shaped through-holes can be the same or different. When the device 10 is worn around the neck of the user, the air outlet 186 is adjacent to the back of the neck, which facilitates reducing the local temperature of the user's neck rapidly, significantly improving the transfer efficiency of cold energy, allowing the user to feel cool more quickly, effectively enhancing the cooling sensation, and preventing the cold energy from being averaged out by the surrounding ambient temperature due to a long transmission path.

In some embodiments, the contact area between the heat dissipator 152 and the temperature adjustment component 16 is greater than the contact area between the thermal conduction component 12 and the temperature adjustment component 16. Specifically, the heat dissipator 152 includes a heat dissipation base 1524 connected to the side of the temperature adjustment component 16 away from the wearing space 1806. The thermal conduction component 12 includes a thermal conduction base 12C connected to the side of the temperature adjustment component 16 close to the wearing space 1806. In this embodiment, the size of the heat dissipation base 1524 is larger than that of the thermal conduction base 12C. With the same contact area with the temperature adjustment component 16, the larger heat dissipation base 1524 allows heat to be distributed over a larger area, increasing the heat dissipation area and effectively improving heat dissipation efficiency. With the limited cooling capacity of the temperature adjustment component 16, increasing the heat dissipation area can lower the temperature of the temperature adjustment component 16 more quickly, helping to improve the energy efficiency ratio of the temperature adjustment component 16, allowing the cooling system to provide better cooling performance under the same energy consumption, while extending the service life of the temperature adjustment component 16.

In the embodiment of the application, the thermal conduction component 12 further includes a plurality of temperature conduction fins 12D. The thermal conduction base 12C is connected to the side of the temperature adjustment component 16 close to the wearing space 1806. The plurality of temperature conduction fins 12D are located on the side of the thermal conduction base 12C away from the temperature adjustment component 16 and are spaced apart. A temperature conduction channel 12E is formed between adjacent two temperature conduction fins 12D, and the openings of the temperature conduction channels 12E form the ventilation ports 124. Specifically, the ventilation ports 124 are formed at the ends of adjacent two temperature conduction fins 12D away from the thermal conduction base 12C, and the ventilation ports 124 are connected to the ventilation air passage 510. The cold energy generated by the temperature adjustment component 16 is transferred to the thermal conduction base 12C which then transfers the cold energy to the plurality of ventilation ports 124 through the temperature conduction fins 12D, increasing the contact area between the airflow and the thermal conduction component 12 and enhancing the cooling effect.

In some embodiments, the area of a single heat dissipation fin 1522 is larger than that of a single temperature conduction fin 12D. The larger area of a single heat dissipation fin 1522 provides a larger heat dissipation surface area, with more contact area with the airflow, accelerating heat conduction and dissipation, thus effectively improving heat dissipation efficiency.

In some embodiments of the application, the connecting section 1808, the two first housing portions 1802 and second housing portions 1804 cooperatively form a C-shape configuration around the wearing space 1806. Two temperature adjustment components 16 are arranged adjacent to each other. The two temperature adjustment components 16 form an angle greater than 90° and less than 180° on the side facing the wearing space 1806, the layout of which better adapts to the C-shaped housing 18, making it more conducive for the airflow generated by each fan 14 to blow towards the heat dissipator 152. The first heat dissipator 152A and the second heat dissipator 152B are arranged along the curvature of the housing 18, effectively increasing the number of heat dissipation fins 1522 within the limited space inside of the housing 18, thereby increasing the contact area between the first heat dissipator 152A and the airflow. A larger contact area allows more heat to be transferred from the heat dissipation fins 1522 to the external environment, speeding up heat dissipation of the first heat dissipator 152A.

It should be understood that the system, device and method disclosed in several embodiments of the application may be implemented in other ways. For example, the device embodiments described above are merely illustrative. For example, the units are divided according to their logic functions, and in actual implementation, the units may be divided in other ways. For example, multiple units or assemblies may be combined or integrated in another system, or some features may be ignored or not executed. In addition, coupling, direct coupling or communication connection displayed or discussed above may be indirect coupling or communication connection between devices or units via some interfaces, or electrical, mechanical or other connections.

Units described as discrete components may be or may be not physically separated. Components displayed as units may be or may be not physical units, that is, they may be located in the same network unit or distributed in multiple network units. All or part of the units may be selected to fulfill the purposes of the embodiments of the application as actually needed.

Finally, it should be noted that the above embodiments are merely used for explaining the technical solutions of the application and are not intended to limit the application. Although the application has been described in detail with reference to the above embodiments, those ordinarily skilled in the art should understand that modifications may be made to the technical solutions in the above embodiments or equivalent substitutions may be made to part of the technical features in the above embodiment without departing from the spirit and scope of the technical solutions in the embodiments of the application.