Portable temperature adjusting device

Abstract

The embodiment of the utility model provides a portable temperature adjusting device. The portable temperature adjusting device comprises a shell; the temperature adjusting piece is arranged in the shell; the heat exchange part is arranged in the shell and is in heat conduction connection with the first temperature adjusting end of the temperature adjusting part; a flow channel used for allowing heat exchange fluid to pass through is formed in the heat exchange piece. Each flow channel comprises a connecting flow channel and a plurality of sub-flow channels arranged in the first direction, the sub-flow channels extend in the second direction, and the first direction and the second direction are arranged in a crossed mode; the plurality of sub flow channels in the flow channel are sequentially communicated through the connecting flow channel; the heat exchange piece comprises an arc-shaped flow guide structure located at the communicating position of the two sub-flow channels. The portable temperature adjusting device provided by the embodiment of the utility model can increase the flow speed and the heat exchange efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of temperature regulating equipment, in particular to a portable temperature regulating device. Background Art

[0002] Portable thermostats, such as handheld fans, neck fans, and waist fans, are popular among consumers because they are easy to carry and can provide a cool experience outdoors. In order to enhance the cooling effect, some portable thermostats are equipped with semiconductor refrigeration chips for cooling, so as to directly transfer cold air to the human body or cool the airflow blown out by the fan. However, due to the nature of semiconductor refrigeration chips, they need to be dissipated during cooling to ensure continuous cold output and cooling effect. At present, how to better dissipate heat from semiconductor refrigeration chips in portable thermostats is still a problem that manufacturers need to overcome. In existing portable thermostats that use water cooling for heat dissipation, cold water easily flows back to form turbulence when flowing in the water cooling head, and the flow rate is reduced, resulting in affected heat exchange efficiency. Utility Model Content

[0003] Therefore, in order to overcome at least some of the defects and shortcomings in the prior art, an embodiment of the present invention provides a portable temperature control device, which can increase the flow rate and heat exchange efficiency through the design of an arc-shaped guide structure.

[0004] Specifically, one embodiment of the present invention provides a portable temperature control device, comprising: a shell; a temperature control component, arranged in the shell; a heat exchange component, arranged in the shell and thermally connected to the first temperature control end of the temperature control component; a flow channel for allowing a heat exchange fluid to pass through is formed in the heat exchange component; the flow channel comprises a connecting flow channel and a plurality of sub-flow channels arranged along a first direction, the sub-flow channels extending along a second direction, and the first direction and the second direction are arranged to intersect; a plurality of the sub-flow channels in the flow channel are connected in sequence through the connecting flow channel; the heat exchange component also includes an arc-shaped guide structure located at the connection point between two of the sub-flow channels.

[0005] In some embodiments, at least a portion of the arc-shaped flow-guiding structure constitutes a side wall of the connecting flow channel.

[0006] In some embodiments, the heat exchange element includes a contact portion and a heat dissipation fin, the contact portion is thermally connected to the first temperature adjustment end of the temperature adjustment element, the heat dissipation fin is arranged on a side away from the temperature adjustment element, and the heat dissipation fin is enclosed on the contact portion to form the flow channel.

[0007] In some embodiments, the heat dissipation fins include a plurality of straight fins arranged at intervals along the first direction, and the gaps between the plurality of straight fins form the sub-flow channel; at least one end of each of the plurality of straight fins is connected to the arc-shaped guide structure;

[0008] In some embodiments, the heat dissipating fins include first curved fins, which serve as the curved flow guide structure and constitute side walls of the connecting flow channel.

[0009] In some embodiments, the heat exchange element also includes a cover body, the cover body includes a top and a side, the top cover is arranged at one end of the heat dissipating fin away from the contact part, the side is connected to the contact part along the circumference of the top, the cover body and the contact part together enclose a heat exchange cavity, and the flow channel is formed in the heat exchange cavity.

[0010] In some embodiments, the heat dissipating fin further includes a second curved fin, which serves as the curved guide structure. The second curved fin and the side portion together constitute a side wall of the connecting flow channel.

[0011] In some embodiments, the heat dissipation fins also include straight fins whose ends are connected to the sides, and the straight fins constitute the side walls of the sub-channels; the straight fins form an angle at the connection with the sides, and the second curved fins are respectively connected to the sides and the straight fins and seal the angle to form the isolated connecting channels and angle cavities on the opposite sides of the second curved fins.

[0012] In some embodiments, the side portion further extends to a side of the contact portion facing the thermostat, and forms a groove on the side of the contact portion facing the thermostat, and the thermostat is disposed in the groove.

[0013] In some embodiments, there are multiple flow channels, and the multiple flow channels are isolated from each other.

[0014] From the above, it can be seen that the above embodiments of the present invention can achieve one or more of the following beneficial effects: by setting an arc-shaped guide structure at the connecting point of the two sub-channels in the heat exchange component to guide the heat exchange fluid, the turbulence of the heat exchange fluid can be reduced, thereby increasing the flow rate and improving the heat dissipation effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The specific implementation of the present invention will be described in detail below with reference to the accompanying drawings.

[0016] Figure 1 This is a schematic diagram of the overall structure of a portable temperature control device provided in an embodiment of the present utility model.

[0017] Figure 2 To show Figure 1 Schematic diagram of part of the internal structure of the portable thermostat shown.

[0018] Figure 3 for Figure 1Schematic diagram of the exploded structure of part of the structure of the portable temperature control device shown.

[0019] Figure 4 This is a schematic diagram of the exploded structure of a heat exchanger in one embodiment of the present invention.

[0020] Figure 5 It is a schematic cross-sectional structural diagram of a heat exchanger in one embodiment of the present utility model.

[0021] Figure 6 This is a schematic diagram of the exploded structure of the heat exchange component and the temperature regulating component in one embodiment of the present utility model.

[0022] Figure 7 This is a schematic structural diagram of the heat dissipation fins in a heat exchange element in one embodiment of the present utility model.

[0023] Figure 8 This is a structural schematic diagram of the heat dissipation fins, fluid inlet and fluid outlet in a heat exchange element in another embodiment of the present invention.

[0024] Figure 9 This is another structural schematic diagram of the heat dissipation fins, the fluid inlet and the fluid outlet in a heat exchange element in yet another embodiment of the present utility model.

[0025] [Description of Reference Numerals]

[0026] 100. Portable temperature control device; 10. Housing; 11. First housing; 12. Second housing; 13. Wearing space; 20. Temperature control component; 30. Heat exchange component; 301. Flow channel; 3011. Sub-flow channel; 3012. Connecting flow channel; 302. Fluid inlet; 303. Fluid outlet; 304. Groove; 305. Angle cavity; 31. Contact portion; 32. Heat dissipation fin; 321. Straight fin; 322. First curved fin; 323. Second curved fin; 33. Cover; 331. Top; 332. Side; 40. Temperature conduction component; 50. Impeller. DETAILED DESCRIPTION

[0027] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0028] In order to enable those skilled in the art to better understand the technical solutions of the present invention, the following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative efforts should fall within the scope of protection of the present invention.

[0029] It should be noted that the terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that the terms used in this way are interchangeable where appropriate, so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or are inherent to these processes, methods, products or devices.

[0030] It should also be noted that the division of multiple embodiments in the present invention is only for the convenience of description and should not constitute a special limitation. The features in various embodiments can be combined and referenced to each other without contradiction.

[0031] An embodiment of the present application provides a portable temperature control device 100, which can be handheld, neck-hanging, waist-hanging, etc. according to the usage mode. Figure 1 Taking the neck-hanging type as an example, the overall structure of a portable temperature control device 100 provided by the embodiment of the present invention is demonstrated. The portable temperature control device 100 includes a housing 10, a temperature control element 20, and a heat exchange element 30. The temperature control element is arranged in the housing 10. The heat exchange element 30 is arranged in the housing 10 and is thermally connected to the first temperature control end of the temperature control element 20. A flow channel 301 is formed in the heat exchange element 30 for passing a heat exchange fluid (refer to FIG. Figure 4 ) Among them, refer to Figure 7 The flow channel 301 includes a connecting flow channel 3012 and multiple sub-flow channels 3011 arranged along a first direction. The sub-flow channels 3011 extend along a second direction, with the first and second directions intersecting. The multiple sub-flow channels 3011 in each flow channel 301 are sequentially connected via the connecting flow channel 3012. Alternatively, the multiple sub-flow channels 3011 are connected in series, with two sub-flow channels 3011 connected in series being connected via the connecting flow channel 3012. The heat exchange element 30 also includes an arc-shaped flow guide structure located at the junction of two sub-flow channels 3011.

[0032] Taking the neck-hanging type or waist-hanging type as an example, the shell 10 also encloses a wearing space 13, and when the portable temperature control device is worn, the user's neck or waist is located in the wearing space 13. Taking the neck-hanging type as an example, the shell 10 includes, for example, two first shells 11 and a second shell 12 connected between the two first shells 11, and the second shell 12 and the two first shells 11 together enclose a "U"-shaped structure. When worn on the user's neck, the two first shells 11 are respectively located on the left and right sides of the user's neck, and the second shell 12 is located behind the neck. For example, the temperature control component 20 can be provided on the first shell 11 or on the second shell 12. For example, there are multiple temperature control components 20, and the temperature control components 20 are respectively provided in the second shell 12 and the two first shells 11. Figure 2 and Figure 3 The structure inside one of the first shells 11 is shown, and the structure inside the other first shell 11 can be substantially the same. For example, a power supply is also provided inside the shell 10 to provide the current required for the temperature control element to work.

[0033] The thermostat 20 is, for example, a semiconductor refrigeration plate having a first thermostat end and a second thermostat end. The first thermostat end and the second thermostat end refer to the cold end and the hot end of the semiconductor refrigeration plate. For example, when the thermostat 20 is used for cooling, the end facing the heat exchanger 30, namely the first thermostat end, is the hot end, and the end facing away from the heat exchanger 30, namely the second thermostat end, is the cold end. Heat from the hot end needs to be dissipated through the heat exchanger 30 to ensure a cooling effect. Similarly, when the thermostat 20 is used for heating, the end facing the heat exchanger 30, namely the first thermostat end, is the cold end, and the end facing away from the heat exchanger 30, namely the second thermostat end, is the hot end. Cold from the cold end needs to be dissipated through the heat exchanger 30 to ensure a heating effect.

[0034] In some embodiments, for example, an impeller 50 is further provided in the shell 10, and corresponding air inlet and outlet are also provided on the shell 10. The impeller 50 is used to rotate to generate airflow to blow air for the user to cool down. In some embodiments, at least part of the airflow generated by the impeller 50 can also pass through the second temperature control end of the temperature control component 20 to cool down or heat the airflow to achieve the effect of blowing cold air or hot air.

[0035] Alternatively, in some embodiments, the thermostat 20 is configured to cool or heat the cold or heat generated by the second thermostat end by contact with the user. In some embodiments, the portable thermostat 100 further includes a thermoconductor 40, which is thermally connected to the second thermostat end of the thermostat 20 and is disposed on the side of the housing 10 facing the wearing space 13. The thermoconductor 40 is, for example, a metal part or a thermally conductive silicone with good thermal conductivity. When the user wears the portable thermostat 100, the user's neck is located in the wearing space 13, and the neck skin contacts the thermoconductor 40. The thermoconductor 40 conducts the cold generated by the thermostat 20 directly to the neck skin to achieve a direct contact cooling effect.

[0036] The heat transfer connection between the heat exchanger 30 and the first thermostat end of the thermostat 20 can be, for example, direct contact between the heat exchanger 30 and the first thermostat end of the thermostat 20, or indirect contact between the heat exchanger 30 and the first thermostat end of the thermostat 20 via a heat-conducting or heat-averaging material, but heat can be transferred from the first thermostat end of the thermostat 20 to the heat exchanger 30. In some embodiments, the number of flow channels 301 is multiple, and the multiple flow channels 301 are isolated from each other. Here, "multiple" refers to two or more. For example, a heat transfer fluid such as water can be introduced into the multiple flow channels 301, so that the heat transfer fluid can take away the heat (or cold) transferred from the first thermostat end to the heat exchanger 30, thereby achieving the effect of dissipating heat (or cooling) for the thermostat 20. For example, a liquid storage tank and a fluid pump can be provided inside or outside the housing 10 to pump the heat exchange fluid from the liquid storage tank to the heat exchange element 30. After the heat exchange is completed, the heat exchange fluid is discharged from the heat exchange element 30 and can flow back into the liquid storage tank to perform a cyclic heat exchange process. Accordingly, a heat dissipation structure can be provided between the heat exchange element 30 and the liquid storage tank to dissipate the heat from the high-temperature heat exchange fluid after absorbing heat into the air, so that the heat exchange fluid can maintain an appropriate temperature when exchanging heat with the heat exchange element 30.

[0037] In this embodiment, a plurality of flow channels 301 are provided in the heat exchange element 30 and the plurality of flow channels 301 are isolated from each other, so that the flows of the heat exchange fluids entering different flow channels 301 do not affect each other. Figure 7 The dotted arrows and solid arrows respectively indicate the flow direction of the heat exchange fluid in two different flow channels 301. The stroke of the fluid in a single flow channel 301 is shortened to about one half of the stroke of the fluid in the two flow channels 301. Therefore, the mutually isolated setting of multiple flow channels 301 can reduce the resistance encountered by the heat exchange fluid in the heat exchange element 30, improve the heat dissipation effect, and reduce the pressure in the heat exchange element 30, reduce the power of the fluid pump, reduce the power consumption of the fluid pump, reduce the space occupied or reduce the weight of the whole machine or energy saving effect, or under the same power consumption of the fluid pump, it can ensure a higher flow rate of the heat exchange fluid, thereby improving the heat exchange effect.

[0038] Specifically, the plurality of sub-flow channels 3011 are straight flow channels. The first direction and the second direction are perpendicular to each other. Figure 7 , multiple sub-channels 3011 are along the first direction ( Figure 7 and arranged in the left and right directions, and along the second direction ( Figure 7 The first, fourth, fifth and eighth sub-channels 3011 from the left are connected in series in sequence. The first one from the left is connected to the lower end of the fourth sub-channel 3011, the fourth one from the left is connected to the upper end of the fifth sub-channel 3011, and the fifth one from the left is connected to the lower end of the eighth sub-channel 3011. Figure 7 In the orientation shown, the arc-shaped guide structure can be set at one or more of the lower ends of the first and fourth sub-channels 3011 from the left, the upper ends of the fourth and fifth sub-channels 3011 from the left, and the lower ends of the fifth and eighth sub-channels 3011 from the left.

[0039] The arc-shaped flow-guiding structure may be, for example, a block-shaped or sheet-shaped structure, etc., for example, having an arc-shaped flow-guiding surface, which can guide the heat exchange fluid.

[0040] For example, refer to Figure 7 As shown by the solid arrow in the middle, the heat exchange fluid flows from the first sub-channel 3011 from the left from top to bottom to the lower end of the first sub-channel 3011 from the left, and then turns to enter the fourth sub-channel 3011 from the left. When it flows from bottom to top to the upper end of the fourth sub-channel 3011 from the left, it turns to enter the fifth sub-channel 3011 from the left. When it flows from top to bottom to the lower end of the fifth sub-channel 3011 from the left, it turns to enter the eighth sub-channel 3011 from the left, and flows out from bottom to top. Due to the arrangement of the arc-shaped guide structure, the heat exchange fluid is guided by the arc-shaped guide structure when it turns, guiding the heat exchange fluid into the next sub-channel 3011 and reducing turbulence, thereby increasing the flow rate of the heat exchange fluid in the channel 301 and improving the heat dissipation effect. In some embodiments, continue to refer to Figure 7 The flow channel 301 further includes a connecting flow channel 3012 located between the two sub-flow channels 3011 connected in series. The connecting flow channel 3012 is respectively connected to the two sub-flow channels 3011 connected in series. At least part of the arc-shaped flow guiding structure constitutes the side wall of the connecting flow channel 3012. For example, if the arc-shaped flow guiding structure is in a block shape, then part of the multiple surfaces of the arc-shaped flow guiding structure can constitute the side wall of the connecting flow channel 3012. For example, if the arc-shaped flow guiding structure is in a sheet shape, then one of the two surfaces of the arc-shaped flow guiding structure can constitute the side wall of the connecting flow channel 3012, or the two surfaces can serve as different side walls of the connecting flow channel 3012. Figure 7 The connecting flow channel 3012 is an arc-shaped flow channel, and the two opposite side walls of the connecting flow channel can be respectively formed by multiple arc-shaped guide structures, or only one arc-shaped guide structure or multiple arc-shaped guide structures can form one of the side walls of the connecting flow channel.

[0041] In some embodiments, reference Figure 4 The heat exchange element 30 further includes a fluid inlet 302 and a fluid outlet 303. Figure 5 The fluid inlet 302 is connected to one end of each of the multiple flow channels 301, and the fluid outlet 303 is connected to the other end of each of the multiple flow channels 301. In other words, the multiple flow channels 301 share one fluid inlet 302 and one fluid outlet 303, which makes it easier to connect the heat exchange fluid delivery pipeline to the heat exchange element 30.

[0042] In some embodiments, reference Figure 4 The heat exchanger 30 includes a contact portion 31 and a heat dissipation fin 32. The contact portion 31 is thermally connected to the first temperature regulating end of the thermostat 20. The heat dissipation fin 32 is arranged on the side of the contact portion 31 away from the thermostat 20. The heat dissipation fin 32 is enclosed on the contact portion 31 to form a flow channel 301. The contact portion 31 and the heat dissipation fin 32 are, for example, made of metal with good thermal conductivity. The contact portion 31 is, for example, in direct contact with the first temperature regulating end of the thermostat 20 to conduct heat from the thermostat 20. The heat dissipation fin 32 can enclose the flow channel 301 to increase the heat exchange area of ​​the heat exchanger 30 and improve the heat exchange efficiency. In some embodiments, referring to Figure 4 In the embodiment, the heat exchange element 30 further includes a cover 33, which includes a top 331 and a side 332. The top 331 covers the end of the heat dissipating fin 32 away from the contact portion 31, and the side 332 is connected to the contact portion 31 along the periphery of the top 331. The cover 33 and the contact portion 31 together enclose a heat exchange cavity, and the flow channels 301 are formed within the heat exchange cavity. The material of the cover 33 can be the same as that of the contact portion 31. For example, the cover 33 can be connected to the contact portion 31 by welding to achieve sealing of the multiple flow channels 301. In some embodiments, the fluid inlet 302 and the fluid outlet 303 are both provided on the side 332, which can more conveniently connect to the pipelines for inputting and outputting the heat exchange fluid.

[0043] In some embodiments, reference Figure 6 The side portion 332 further extends to the side of the contact portion 31 facing the thermostat 20, and forms a groove 304 on the side of the contact portion 31 facing the thermostat 20. The thermostat 20 is disposed within the groove 304. This allows the thermostat 20 to be partially embedded in the heat exchanger 30, ensuring close contact between the thermostat 20 and the heat exchanger 30, and also increasing the contact area between the heat exchanger 30 and the thermostat 20.

[0044] The arc-shaped guide structure is a component of the heat dissipation fins 32 or is connected to the heat dissipation fins 32. The arc-shaped guide structure can be connected to the heat dissipation fins 32 by welding, integral molding, or the like. Figure 7In the figure, the arcuate portion (first arcuate fin 322 and second arcuate fin 323) on the heat dissipating fin 32 is used as an example of the arcuate flow guiding structure. However, the arcuate portion in the heat dissipating fin 32 can also be replaced by a block structure with a corresponding arcuate surface.

[0045] Specifically, in some embodiments, referring to Figure 7 , the heat dissipation fins 32 include a plurality of straight fins 321 spaced apart along a first direction, and the gaps between the plurality of straight fins 321 form sub-channels. At least one end of each of the plurality of straight fins 321 is connected to an arc-shaped flow-guiding structure. Specifically, for example, if two sub-channels 3011 on adjacent sides of a straight fin 321 in the plurality of straight fins 321 are connected in series (i.e., belong to the same flow channel 301), then the end of the straight fin 321 away from the connection between the two sub-channels 3011 on its adjacent sides is connected to an arc-shaped flow-guiding structure. For example Figure 7 The straight fin 321 between the fourth sub-channel 3011 from the left and the fifth sub-channel 3011 from the left has an arc-shaped guide structure connected to its lower end. For example, if the two sub-channels 3011 on the two adjacent sides of a straight fin 321 are isolated from each other (belonging to different channels 301), then both ends of the straight fin 321 can be connected to an arc-shaped guide structure. Figure 7 The straight fin 321 between the third and fourth sub-channels 3011 from the left is connected to an arc-shaped flow-guiding structure at both ends. Each straight fin 321 is connected to an arc-shaped flow-guiding structure at at least one end, so that an arc-shaped flow-guiding structure is used to guide the flow at each reversal point, which can better increase the flow rate.

[0046] For example, the heat dissipation fin 32 further includes a first curved fin 322, which is connected to the ends of the corresponding two straight fins 321 as a curved guide structure and forms a side wall connecting the flow channel 3012. Figure 7 Each flow channel 301 includes a plurality of sub-flow channels arranged from left to right (first direction), and the sub-flow channels extend along the up-down direction (second direction). Figure 7 The second sub-channel 3011 from the left and the third sub-channel 3011 from the left are two connected sub-channels 3011 in the same channel 301, and the first sub-channel 3011 from the left and the fourth sub-channel 3011 from the left are two connected sub-channels 3011 in the same channel 301. A first curved fin 322 is connected between the lower ends of the straight fin 321 on the left side of the second sub-channel 3011 from the left and the straight fin 321 on the right side of the third sub-channel 3011 from the left. The first curved fin 322 can serve as the side wall of the connecting channel 3012 between the second sub-channel 3011 from the left and the third sub-channel 3011 from the left, thereby reducing eddy currents when the heat exchange fluid turns, thereby increasing the flow rate of the heat exchange fluid and reducing the degree of turbulence, further improving the heat dissipation effect.

[0047] Continue to refer to Figure 7 The heat dissipation fin 32 further includes a second curved fin 323, which serves as a curved flow guide structure. The second curved fin and the side portion 332 communicate with the side wall of the flow channel 3012. In some embodiments, one end of the second curved fin 323 is connected to the corresponding straight fin 321, and the other end is connected to the side portion 332. For example Figure 7 A second curved fin 323 is provided on the upper end of the straight fin 321 on the left side of the third sub-channel from the left, facing the side of the third sub-channel 3011 from the left. Another second curved fin 323 is provided on the upper end of the straight fin 321 on the right side of the sixth sub-channel 3011 from the left, facing the side of the sixth sub-channel 3011 from the left. The two second curved fins 323 and the side portion 332 located on the two second curved fins 323 together constitute a side wall of the connecting channel 3012 connecting the third and sixth sub-channels 3011 from the left, which can achieve the effect of increasing the flow rate.

[0048] In some embodiments, straight fins 321 form the sidewalls of sub-channels 3011. The ends of some of the multiple straight fins 321 are connected to side portions 332. These straight fins 321 and side portions 332 form an angle, such as a 90° angle, at their connection. Second curved fins 323 are respectively connected to side portions 332 and straight fins 321 and seal the angle, thereby forming a mutually isolated connecting channel 3012 and an angled cavity 305 on opposite sides of the second curved fins 323. This allows the heat exchange fluid to flow along one side of the second curved fin 323 at the turning point of the channel 301 into the connecting channel 3012 without entering the angled cavity 305. This prevents the heat exchange fluid from forming stagnant water at the angle, which could reduce heat exchange efficiency. Therefore, the arrangement of the second curved fins 323 sealing the angle in this embodiment can further improve heat exchange efficiency.

[0049] In some embodiments, the fluid inlet 302 and the fluid outlet 303 are in communication with the plurality of flow channels 301 along the second direction. Figure 5 The fluid inlet 302 and the fluid outlet 303 are located on the same side of the heat exchange element 30. Figure 8 , the fluid inlet 302 and the fluid outlet 303 may be located on opposite sides of the heat exchange element 30. In other embodiments, referring to Figure 9 The fluid inlet 302 and the fluid outlet 303 are arranged along the first direction, and the fluid inlet 302 and the fluid outlet 303 are respectively located on opposite sides of the heat exchange element 30. Figure 9 As shown, the plurality of sub-channels 3011 are arranged in the up-down direction, and the fluid inlet 302 and the fluid outlet 303 are arranged towards the left and right sides respectively. Figures 7 to 9In the illustrated embodiment, the different orientations of the fluid inlet 302 and the fluid outlet 303 can match the requirements of different arrangements of the liquid storage tank and the fluid delivery pipeline in actual products.

[0050] The above description is merely a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment, it is not intended to limit the present invention. Any technician familiar with the profession can make some changes or modifications to equivalent embodiments of the technical content disclosed above without departing from the scope of the technical solution of the present invention. However, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A portable temperature control device (100), characterized in that: include: Housing (10); A temperature regulating element (20) is arranged in the housing (10); A heat exchange component (30) is arranged in the shell (10) and is heat-conductingly connected to the first temperature regulating end of the temperature regulating component (20); a flow channel (301) for allowing a heat exchange fluid to pass through is formed in the heat exchange component (30); the flow channel (301) includes a connecting flow channel (3012) and a plurality of sub-flow channels (3011) arranged along a first direction, the sub-flow channels (3011) extending along a second direction, and the first direction and the second direction are arranged to intersect; the plurality of sub-flow channels (3011) in the flow channel (301) are connected in sequence through the connecting flow channel (3012); the heat exchange component (30) further includes an arc-shaped guide structure located at the connection point between two sub-flow channels (3011).

2. The portable temperature control device (100) according to claim 1, characterized in that: At least part of the arc-shaped flow-guiding structure constitutes the side wall of the connecting flow channel (3012).

3. The portable temperature control device (100) according to claim 1, characterized in that: The heat exchange component (30) includes a contact portion (31) and a heat dissipation fin (32), wherein the contact portion (31) is thermally connected to the first temperature adjustment end of the temperature adjustment component (20), and the heat dissipation fin (32) is arranged on a side away from the temperature adjustment component (20) from the contact portion (31), and the heat dissipation fin (32) is enclosed on the contact portion (31) to form the flow channel (301).

4. The portable temperature control device (100) according to claim 3, characterized in that: The heat dissipation fins (32) comprise a plurality of straight fins (321) arranged at intervals along the first direction, the gaps between the plurality of straight fins (321) forming the sub-flow channel (3011); at least one end of each of the plurality of straight fins (321) is connected to the arc-shaped flow guide structure.

5. The portable temperature control device (100) according to claim 3, characterized in that: The heat dissipation fin (32) comprises a first arc-shaped fin (322), the first arc-shaped fin (322) serving as the arc-shaped flow guide structure and constituting a side wall of the connecting flow channel (3012).

6. The portable temperature control device (100) according to claim 3, characterized in that: The heat exchange element (30) further includes a cover body (33), the cover body (33) including a top portion (331) and a side portion (332), the top portion (331) being arranged on an end of the heat dissipation fin (32) away from the contact portion (31), the side portion (332) being connected to the contact portion (31) along a circumferential side of the top portion (331), the cover body (33) and the contact portion (31) jointly enclosing a heat exchange cavity, and the flow channel (301) being formed in the heat exchange cavity.

7. The portable temperature control device (100) according to claim 6, characterized in that: The heat dissipation fin (32) further includes a second arc-shaped fin (323), the second arc-shaped fin (323) serving as the arc-shaped flow-guiding structure, and the second arc-shaped fin (323) and the side portion (332) together forming a side wall of the connecting flow channel (3012).

8. The portable temperature control device (100) according to claim 7, characterized in that: The heat dissipation fin (32) further comprises a straight fin (321) whose end is connected to the side portion (332), and the straight fin (321) constitutes the side wall of the sub-channel (3011); an angle is formed at the connection between the straight fin (321) and the side portion (332), and the second curved fin (323) is respectively connected to the side portion (332) and the straight fin (321) and seals the angle, so as to form the mutually isolated connecting channel (3012) and the angle cavity (305) on opposite sides of the second curved fin (323).

9. The portable temperature control device (100) according to claim 6, characterized in that: The side portion (332) further extends to the side of the contact portion (31) facing the temperature regulating component (20), and encloses a groove (304) on the side of the contact portion (31) facing the temperature regulating component (20), and the temperature regulating component (20) is arranged in the groove (304).

10. The portable temperature control device (100) according to claim 1, characterized in that: There are multiple flow channels, and the multiple flow channels are isolated from each other.

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