A heat dissipation device applied to an epilator
By employing a design with two sets of heat sinks and heat-conducting blocks on the hair removal device, the problems of poor heat dissipation and large size in existing technologies are solved, achieving more efficient heat dissipation and a smaller device, making it easier for users to use.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENZHEN LIDIAN TECH CO LTD
- Filing Date
- 2025-01-07
- Publication Date
- 2026-06-09
AI Technical Summary
Existing hair removal devices have their heat sinks concentrated in the head, resulting in poor heat dissipation and requiring large fans, which affects the user experience.
Two sets of heat sinks are used, installed on one side and the other side of the laser module of the hair removal device. Heat is directed to the second heat sink through a heat conduction block to avoid the heat sink being concentrated on the head. Heat is dissipated in combination with heat conduction pipes and cooling fans.
The heat dissipation effect has been improved, the size of the hair removal device head has been reduced, making it easier for users to use, reducing energy consumption, and avoiding the risk of burns.
Smart Images

Figure CN224331024U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of hair removal device technology, and in particular to a heat dissipation device used in hair removal devices. Background Technology
[0002] The prior art application number CN202323366992.3 discloses a visual laser hair removal device, which further includes a heat dissipation component. The heat dissipation component includes a heat sink and a heat dissipation fan disposed in the accommodating cavity. The heat sink includes a heat dissipation base and a plurality of heat dissipation fins connected to the heat dissipation base.
[0003] In existing hair removal devices, the heat sink is generally concentrated in the head of the device, including the cooling fan, and the heat dissipation device usually uses a set of heat sinks for heat dissipation.
[0004] Because hair removal devices generate a lot of heat during operation, using a single heat sink is not very effective, and each heat sink needs to be relatively large to dissipate heat properly. Therefore, a large cooling fan is required. These design considerations can easily result in a large head size for the hair removal device, making it inconvenient for users to use.
[0005] Therefore, existing technologies need to be improved and enhanced. Utility Model Content
[0006] In view of the shortcomings of the prior art, the present invention provides a heat dissipation device for hair removal devices, which uses two sets of heat sinks and is installed directly on the head of the hair removal device, avoiding the heat sinks. This not only improves the heat dissipation effect but also effectively reduces the size of the head of the hair removal device, making it easier for users to use.
[0007] To achieve the above objectives, the present invention adopts the following technical solution:
[0008] A heat dissipation device for use in a hair removal device includes a laser module mounted on the hair removal device. A light emission cover is provided on one side of the laser module, and a sapphire crystal for contacting the hair removal area is mounted at the end of the light emission cover. The sapphire crystal is connected to a first heat sink. A heat-conducting block is connected to the other side of the laser module, and the heat-conducting block is connected to a second heat sink.
[0009] Furthermore, the first radiator is L-shaped.
[0010] Furthermore, the first heat sink includes a heat-conducting part and a heat dissipation part connected to the heat-conducting part. The heat dissipation part is provided with a plurality of first fins. The first fins are arranged to avoid the light-emitting cover. One side of the heat-conducting part is in contact with the sapphire, and the other side of the heat-conducting part is provided with a first connecting hole. The first heat sink is fixed to the housing of the hair removal device through the first connecting hole.
[0011] Furthermore, the heat-conducting block is connected to the second heat sink via a heat-conducting pipe, with one end of the heat-conducting pipe located inside the heat-conducting block and the other end located inside the second heat sink.
[0012] Furthermore, one side of the heat-conducting block is in contact with the laser module, and a second connecting hole is provided on the heat-conducting block. The heat-conducting block is fixed to the housing of the hair removal device through the second connecting hole.
[0013] Furthermore, the heat-conducting block is an aluminum block or a copper block.
[0014] Furthermore, the heat pipe and the heat-conducting block are integrally cast.
[0015] Furthermore, the second heat sink includes a connecting pipe, a plurality of second fins are provided on the outer side of the connecting pipe, the other end of the heat pipe is located inside the connecting pipe, and the outer diameter of the heat pipe is equal to the inner diameter of the connecting pipe.
[0016] Furthermore, a cooling fan is provided on the second fin, and the cooling fan is snapped into the second fin.
[0017] Furthermore, the second fin is provided with a mounting ear, and the mounting ear is provided with a third connecting hole, through which the second heat sink is fixed to the housing of the hair removal device.
[0018] Compared to existing technologies, the heat dissipation device for hair removal devices provided by this utility model includes a laser module mounted on the device. A light-emitting cover is provided on one side of the laser module, and a sapphire crystal for contact with the hair removal area is mounted at the end of the light-emitting cover. The sapphire crystal is connected to a first heat sink, and a heat-conducting block is connected to the other side of the laser module. The heat-conducting block is connected to a second heat sink. With this utility model, the first heat sink can reduce the temperature on one side of the laser module, thus reducing the temperature of the sapphire crystal and facilitating cooling to prevent burns to the user. The second heat sink can reduce the temperature on the other side of the laser module. Using two sets of heat sinks provides better heat dissipation. Furthermore, the heat is dissipated through the second heat sink via the heat-conducting block, preventing the heat sink from being distributed within the head of the hair removal device, effectively reducing the size of the device head and making it easier for the user to use. Attached Figure Description
[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.
[0020] Figure 1 This is a schematic diagram of the heat dissipation device for a hair removal device provided by this utility model.
[0021] Figure 2 This is a cross-sectional schematic diagram of the heat dissipation device for a hair removal device provided by this utility model.
[0022] Figure 3 for Figure 2 Enlarged diagram of point A in the middle.
[0023] Figure 4 This is a partial assembly diagram of the heat dissipation device for a hair removal device provided by this utility model.
[0024] Figure 5 A schematic diagram of the structure of the first heat sink of the heat dissipation device for a hair removal device provided by this utility model.
[0025] Explanation of reference numerals in the attached diagram:
[0026] Laser module-1, light emitter cover-2, sapphire crystal-3, first heat sink-4, heat conduction block-5, second heat sink-6, heat conduction part-7, heat dissipation part-8, first fin-9, first connecting hole-10, heat conduction pipe-11, second connecting hole-12, connecting pipe-13, second fin-14, cooling fan-15, mounting ear-16, third connecting hole-17. Detailed Implementation
[0027] To facilitate understanding of this application, a more complete description will be provided below with reference to the accompanying drawings, which illustrate embodiments of the present application. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of this application will be thorough and complete.
[0028] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.
[0029] In this utility model, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," "horizontal," "lateral," and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this utility model and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation. Furthermore, some of the above terms may be used to indicate other meanings besides orientation or positional relationship; for example, the term "upper" may in some cases indicate a dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this utility model according to the specific circumstances.
[0030] Furthermore, the terms “first” and “second” as used herein may be used to describe various elements, but these elements are not limited by these terms. These terms are used only to distinguish one element from another. When used herein, the singular forms “a,” “an,” and “the” may also include the plural forms unless the context clearly indicates otherwise. It should also be understood that the terms “comprising / including” or “having” specify the presence of the stated features, integrals, steps, operations, components, parts, or combinations thereof, but do not preclude the possibility of the presence or addition of one or more other features, integrals, steps, operations, components, parts, or combinations thereof.
[0031] It should be noted that when a component is said to be "fixed to" another component, it can be directly attached to the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.
[0032] Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.
[0033] like Figure 1 , Figure 2 and Figure 3As shown, the heat dissipation device for hair removal devices provided by this utility model includes a laser module 1 installed on the hair removal device. A light-emitting cover 2 is provided on one side of the laser module 1. A sapphire 3 for contacting the hair removal area is installed at the end of the light-emitting cover 2. The sapphire 3 is connected to a first heat sink 4. A heat-conducting block 5 is connected to the other side of the laser module 1. The heat-conducting block 5 is connected to a second heat sink 6.
[0034] It is understandable that when the hair removal device is working, the laser module 1 will emit heat. At this time, the heat from one side of the laser module 1 will be transferred to the sapphire 3. In current technology, a cooling chip is usually installed on the sapphire 3 to reduce its temperature. However, this application can achieve a preliminary cooling effect on the sapphire 3 through the first heat sink 4, that is, reduce the maximum temperature of the sapphire 3. This allows the cooling chip to operate at a lower power to cool the sapphire 3 immediately, avoiding burns to the user. The first heat sink 4 can achieve a preliminary cooling effect on the sapphire 3, allowing the cooling chip to operate at a lower power to complete the cooling of the sapphire 3, effectively saving the energy consumption of the cooling chip, and thus reducing the power consumption of the hair removal device.
[0035] The heat-conducting block 5 can direct the heat from the other side of the laser module 1 to the second heat sink 6, avoiding the second heat sink 6 being directly installed on the head of the hair removal device, which would result in a large head of the hair removal device that is inconvenient for users. By concentrating the heat through the heat-conducting block 5, the installation position of the second heat sink 6 can be freely selected. The heat-conducting block 5 can be designed into different shapes according to actual needs, which is beneficial for shaping the appearance of the hair removal device. Furthermore, by directing the heat through the heat-conducting block 5 to the second heat sink 6, the second heat sink 6 can be placed in the most reasonable position according to the characteristics of the hair removal device model, ensuring that it does not affect the user's use, and making the second heat sink 6 larger to increase its heat dissipation efficiency.
[0036] Compared with the prior art, in the technical solution of this utility model, the temperature on one side of the laser module 1 can be reduced by the first heat sink 4, that is, the temperature of the sapphire 3 can be reduced, so that the temperature of the sapphire 3 drops, making it easier to cool down and avoid burning the user. The temperature on the other side of the laser module 1 can be reduced by the second heat sink 6. The use of two sets of heat sinks has a better heat dissipation effect. In addition, the heat is dissipated through the second heat sink 6 by the heat conduction block 5, avoiding the heat sink being distributed in the head of the hair removal device, effectively reducing the volume of the hair removal device head, and making it easier for the user to use.
[0037] Furthermore, such as Figure 4 and Figure 5As shown, the first heat sink 4 is L-shaped. It should be noted that the first heat sink 4 can ensure that while it is in close contact with the sapphire 3, it can also maintain a tight fit between the first heat sink 4 and the sapphire 3 after assembly, thus preventing the head of the hair removal device from becoming too large.
[0038] Preferably, such as Figure 4 and Figure 5 As shown, the first heat sink 4 includes a heat-conducting part 7 and a heat dissipation part 8 connected to the heat-conducting part 7. The heat dissipation part 8 is provided with a plurality of first fins 9. The first fins 9 are arranged to avoid the light-emitting cover 2, that is, to make the assembly between the heat dissipation part 8 and the light-emitting cover 2 more compact without affecting the normal operation of the light-emitting cover 2. One side of the heat-conducting part 7 is in contact with the sapphire 3, and the other side of the heat-conducting part 7 is provided with a first connecting hole 10. The first heat sink 4 is fixed to the housing of the hair removal device through the first connecting hole 10. It can be understood that when the heat generated by the laser module 1 is transferred to the sapphire 3, the heat on the sapphire 3 can be transferred to the heat dissipation part 8 through the heat-conducting part 7, and then dissipated through the first fins 9 on the heat dissipation part 8.
[0039] It should be noted that the heat dissipation part 8 dissipates heat through the first fin 9. Compared with setting a fan to dissipate heat from the heat dissipation part 8, the first fin 9 can be structurally customized according to the outline of the hair removal device. The bending and twisting degree of the first fin 9 can be set to avoid other components, making the head of the hair removal device as compact as possible. Furthermore, by setting multiple first fins 9, the heat dissipation effect of the heat dissipation part 8 can be improved.
[0040] Furthermore, such as Figure 2 , Figure 3 and Figure 4 As shown, the heat-conducting block 5 is connected to the second heat sink 6 via a heat-conducting pipe 11, with one end of the heat-conducting pipe 11 located inside the heat-conducting block 5 and the other end located inside the second heat sink 6, thus achieving better heat dissipation. It should be noted that the heat-conducting pipe 11 can be bent according to the shape of the hair removal device, facilitating its shaping. For example, if the hair removal device is elongated, the heat-conducting pipe 11 can be designed as an elongated strip to connect to the second heat sink 6, so that after the second heat sink 6 is assembled, the hair removal device has an elongated shape.
[0041] Furthermore, such as Figure 2As shown, one side of the heat-conducting block 5 is in contact with the laser module 1, which ensures that the heat on the laser module 1 is transferred to the second heat sink 6 through the heat-conducting block 5. The heat-conducting block 5 is provided with a second connecting hole 12, and the heat-conducting block 5 is fixed to the housing of the hair removal device through the second connecting hole 12.
[0042] It should be noted that when the laser module 1 is working, a large amount of heat will be generated on the back of the laser module 1. The heat-conducting block 5 is in direct contact with the back of the laser module 1, which is conducive to transferring the heat on the laser module 1 to the heat-conducting block 5 as much as possible, and facilitates the heat-conducting block 5 to dissipate heat in a concentrated manner.
[0043] Preferably, the heat-conducting block 5 is an aluminum block or a copper block, which can achieve better heat conduction effect.
[0044] Furthermore, the heat pipe 11 and the heat-conducting block 5 are integrally cast, which makes the contact between the heat pipe 11 and the heat-conducting block 5 closer, facilitating the transfer of heat from the heat-conducting block 5 to the heat pipe 11, resulting in a higher heat transfer efficiency.
[0045] Furthermore, the heat pipe 11 is filled with coolant, which can assist the second radiator 6 in dissipating heat and effectively improve the heat dissipation efficiency.
[0046] Preferably, such as Figure 3 As shown, the second heat sink 6 includes a connecting pipe 13, and a plurality of second fins 14 are provided on the outer side of the connecting pipe 13. The other end of the heat pipe 11 is located inside the connecting pipe 13, and the outer diameter of the heat pipe 11 is equal to the inner diameter of the connecting pipe 13, that is, to ensure that the heat pipe 11 and the connecting pipe 13 are in full contact, so that the heat on the heat-conducting block 5 can be smoothly transferred to the second fins 14 for heat dissipation.
[0047] Furthermore, a cooling fan 15 is provided on the second fin 14, and the cooling fan 15 is snapped onto the second fin 14. It should be noted that in the prior art, fans are generally mounted on a specific bracket and then installed inside the hair removal device. The cooling fan 15 of this application is directly snapped onto the second fin 14, which can reduce the installation of the cooling fan 15 bracket, thereby reducing the number of installation parts inside the hair removal device, and also making the body of the hair removal device more compact and small, which is convenient for customers to use and carry when going out.
[0048] Furthermore, such as Figure 3 and Figure 4As shown, the second fin 14 is provided with a mounting ear 16, and the mounting ear 16 is provided with a third connecting hole 17. The second heat sink 6 is fixed to the housing of the hair removal device through the third connecting hole 17. It can be understood that the second heat sink 6 can be fixed to the housing of the hair removal device simply through the third connecting hole 17 on the mounting ear 16. The assembly relationship is simple and there are few assembly parts, which facilitates assembly and allows the body of the hair removal device to be made more compact and small, making it convenient for customers to use and carry when going out.
[0049] In summary, the heat dissipation device for a hair removal device provided by this utility model has an L-shaped first heat sink, which allows for a compact assembly between the first heat sink and the sapphire crystal, preventing the head of the hair removal device from becoming too large. The heat-conducting block is connected to the second heat sink via a heat-conducting pipe, which can be bent according to the shape of the hair removal device, facilitating the shaping of the device. The cooling fan is snapped into the second fin. The second heat sink can be fixed to the housing of the hair removal device simply through the third connecting hole on the mounting ear. The assembly relationship is simple and has few parts, making it easy to assemble and allowing the hair removal device to be made more compact and small, convenient for customers to use and carry when traveling. In this invention, the first heat sink can reduce the temperature on one side of the laser module, thereby reducing the temperature of the sapphire crystal and facilitating cooling to prevent burns to the user. The second heat sink can reduce the temperature on the other side of the laser module. The use of two heat sinks results in better heat dissipation. Furthermore, the heat is dissipated through the second heat sink via a heat-conducting block, preventing the heat sink from being distributed within the head of the hair removal device. This effectively reduces the size of the hair removal device head and makes it easier for the user to use.
[0050] The embodiments of the present invention have been described above with reference to the accompanying drawings. However, the present invention is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of the present invention without departing from the spirit and scope of the claims. All of these forms are within the scope of protection of the present invention.
Claims
1. A heat dissipation device for use in a hair removal device, characterized in that, The device includes a laser module (1) mounted on a hair removal device. A light-emitting cover (2) is provided on one side of the laser module (1). A sapphire (3) for contacting the hair removal area is mounted on the end of the light-emitting cover (2). The sapphire (3) is connected to a first heat sink (4). A heat-conducting block (5) is connected to the other side of the laser module (1). The heat-conducting block (5) is connected to a second heat sink (6).
2. The heat dissipation device for a hair removal device according to claim 1, characterized in that, The first radiator (4) is L-shaped.
3. The heat dissipation device for a hair removal device according to claim 2, characterized in that, The first heat sink (4) includes a heat-conducting part (7) and a heat dissipation part (8) connected to the heat-conducting part (7). The heat dissipation part (8) is provided with a plurality of first fins (9). The first fins (9) are arranged to avoid the light-emitting cover (2). One side of the heat-conducting part (7) is in contact with the sapphire (3). The other side of the heat-conducting part (7) is provided with a first connection hole (10). The first heat sink (4) is fixed to the housing of the hair removal device through the first connection hole (10).
4. The heat dissipation device for a hair removal device according to claim 1, characterized in that, The heat-conducting block (5) is connected to the second heat sink (6) through a heat-conducting pipe (11), and one end of the heat-conducting pipe (11) is located inside the heat-conducting block (5), and the other end of the heat-conducting pipe (11) is located inside the second heat sink (6).
5. The heat dissipation device for a hair removal device according to claim 4, characterized in that, One side of the heat-conducting block (5) is in contact with the laser module (1). The heat-conducting block (5) is provided with a second connection hole (12). The heat-conducting block (5) is fixed to the housing of the hair removal device through the second connection hole (12).
6. The heat dissipation device for a hair removal device according to claim 1, characterized in that, The heat-conducting block (5) is an aluminum block or a copper block.
7. The heat dissipation device for a hair removal device according to claim 4, characterized in that, The heat pipe (11) and the heat-conducting block (5) are integrally cast.
8. The heat dissipation device for a hair removal device according to claim 4, characterized in that, The second heat sink (6) includes a connecting pipe (13), and a plurality of second fins (14) are provided on the outside of the connecting pipe (13). The other end of the heat pipe (11) is located inside the connecting pipe (13), and the outer diameter of the heat pipe (11) is equal to the inner diameter of the connecting pipe (13).
9. The heat dissipation device for a hair removal device according to claim 8, characterized in that, A cooling fan (15) is provided on the second fin (14), and the cooling fan (15) is engaged with the second fin (14).
10. The heat dissipation device for a hair removal device according to claim 8, characterized in that, The second fin (14) is provided with a mounting ear (16), and the mounting ear (16) is provided with a third connecting hole (17). The second heat sink (6) is fixed to the housing of the hair removal device through the third connecting hole (17).