Skin care device

Abstract

This utility model discloses a skin care device, which includes a housing, a light-emitting component, a light guide, a first heat dissipation component, and a first heat-conducting component. The housing defines a receiving cavity and has a light outlet communicating with the receiving cavity. The light-emitting component is disposed in the receiving cavity and generates light for skin care. The light guide is disposed within the receiving cavity and connected to the housing, covering the light outlet and guiding the light generated by the light-emitting component out of the housing through the light outlet. The light guide has a first sidewall and a second sidewall. The first heat dissipation component is disposed in the receiving cavity and is attached to the first sidewall. The first heat-conducting component is disposed in the receiving cavity, with one end attached to the second sidewall and the other end attached to the first heat dissipation component. In this design, the first heat dissipation component directly contacts the light guide, resulting in better heat dissipation for the light guide. Furthermore, the addition of the first heat-conducting component, which simultaneously contacts both the second sidewall and the first heat dissipation component, further enhances the heat dissipation effect of the light guide.

Description

Technical Field

[0001] This utility model relates to the field of skin care, and in particular to a skin care device. Background Technology

[0002] The skin care device generates treatment light that can achieve at least one of the following skin care treatments: whitening, spot removal, skin rejuvenation, or hair removal. The device includes a light guide made of a light-transmitting material. The light guide directs the treatment light while simultaneously sealing the light outlet to prevent foreign objects from entering the device. The treatment light has high energy; the light guide absorbs some of this energy as it directs the light, causing its temperature to rise. Since one end of the light guide is in direct contact with the skin, heat dissipation is necessary to reduce user discomfort. One heat dissipation solution uses a cooling airflow to cool the light guide, but this method has poor heat dissipation performance. Another solution involves attaching a heat dissipation component to one side wall of the light guide to dissipate heat on that side. However, this method has a small contact area between the heat dissipation component and the light guide, resulting in poor heat dissipation as well. Utility Model Content

[0003] The main objective of this invention is to provide a skin care device that can improve the heat dissipation effect of the light guide component.

[0004] To achieve the above objectives, this utility model proposes a skin care device, comprising:

[0005] The housing defines a receiving cavity, and the housing is provided with a light outlet communicating with the receiving cavity;

[0006] A light-emitting component, located within the receiving cavity, generates light for skin care.

[0007] A light guide is disposed in the receiving cavity and connected to the housing. The light guide covers the light outlet and is used to guide the light generated by the light-emitting component out of the housing through the light outlet. The light guide has a first sidewall and a second sidewall.

[0008] A first heat dissipation component is disposed in the receiving cavity and is attached to the first sidewall.

[0009] A first heat-conducting component is disposed in the receiving cavity, with one end of the first heat-conducting component attached to the second side wall and the other end attached to the first heat dissipation component.

[0010] In some embodiments, the direction parallel to the axis of the light outlet is the first direction, the first sidewall is located on one side of the light guide along the direction perpendicular to the first direction, and the second sidewall is located on the other side of the light guide along the direction perpendicular to the first direction.

[0011] In some embodiments, the second direction and the third direction are perpendicular to the first direction, and the second direction and the third direction intersect each other. The first sidewall is located on one side of the light guide along the second direction, and the second sidewall is located on one side of the light guide along the third direction.

[0012] In some embodiments, the light guide has a third sidewall, which is located on opposite sides of the second sidewall along a third direction;

[0013] The skin care device also includes a second heat-conducting element, one end of which is attached to the third sidewall and the other end of which is attached to the first heat dissipation component.

[0014] In some embodiments, the light guide further has a fourth sidewall disposed opposite to the first sidewall along a second direction;

[0015] The skin care device also includes a third heat-conducting element, which is attached to the fourth sidewall, and one end of the third heat-conducting element is connected to the first heat-conducting element along the third direction, and the other end of the third heat-conducting element is connected to the second heat-conducting element along the third direction.

[0016] In some embodiments, the first heat dissipation component is located on one side of the light guide along the second direction. The first heat dissipation component has a heat exchange sidewall facing the light guide. The heat exchange sidewall has a first heat exchange region and a second heat exchange region. The first sidewall is attached to the first heat exchange region.

[0017] The first heat-conducting element is bent and includes a first heat-conducting sheet and a second heat-conducting sheet that are bent and connected to each other. The first heat-conducting sheet is attached to the second sidewall, and the second heat-conducting sheet is attached to the second heat exchange area.

[0018] In some embodiments, the heat exchange sidewall is a planar wall, and the wall surface of the second heat-conducting plate facing the heat exchange sidewall is coplanar with the first sidewall;

[0019] And / or,

[0020] Along the second direction, the width of the wall surface in contact with the second sidewall is equal to the width of the second sidewall.

[0021] In some embodiments, the skin care device further includes a fixed bracket disposed in the receiving cavity, the fixed bracket defining a light guide chamber, the fixed bracket having a first opening communicating with the light guide chamber on the side near the light outlet and a second opening communicating with the light guide chamber on the side away from the light outlet, the light guide being at least partially disposed in the light guide chamber, the light from the light-emitting component being adapted to enter the light guide chamber through the second opening and be conducted through the light guide to exit the light guide chamber through the first opening;

[0022] The first sidewall is at least partially located within the light guide cavity, and the first heat-conducting element extends at least partially into the light guide cavity and adheres to the second sidewall.

[0023] In some embodiments, the fixing bracket further defines a heat dissipation chamber communicating with the light guiding chamber, the heat dissipation chamber being located on one side of the light guiding chamber along the second direction, the first heat dissipation component being located in the heat dissipation chamber, and the first heat conduction element extending at least partially into the heat dissipation chamber and abutting against the first heat dissipation component.

[0024] In some embodiments, along a third direction, the width of the heat dissipation chamber is greater than the width of the light guide chamber;

[0025] The first heat dissipation component has a heat exchange sidewall facing the light guide element. The heat exchange sidewall has a first heat exchange area and a second heat exchange area. When viewed along the second direction, the first heat exchange area coincides with the light guide cavity, and the second heat exchange area is located on one side of the light guide cavity along the third direction.

[0026] The first sidewall is attached to the first heat exchange area, and the first heat-conducting element is attached to the second heat exchange area.

[0027] In some embodiments, the light-emitting component is at least partially disposed through the second opening, and the light-emitting component includes a light-emitting element and a protective frame disposed around the periphery of the light-emitting element;

[0028] The light guide has a fifth sidewall on the side away from the light outlet, the light-emitting element faces the fifth sidewall, and the protective frame abuts against the fifth sidewall; and / or, the first heat-conducting element abuts against the protective frame on the side away from the first opening.

[0029] In some embodiments, the first heat dissipation component is a semiconductor heat sink, which includes a cold surface and a hot surface disposed opposite to each other, and the first sidewall and the first heat-conducting element are both attached to the cold surface.

[0030] In some embodiments, the skin care device further includes a second heat dissipation component, which includes heat dissipation fins and heat dissipation pipes, with one end of the heat dissipation pipe connected to the heat dissipation fins and the other end used to obtain heat from the hot surface.

[0031] Compared with the prior art, the beneficial effects of this utility model are:

[0032] In the technical solution of this utility model, the light guide is used to guide the light generated by the light-emitting component for skin care, and the first heat dissipation component is used to dissipate heat from the light guide. Specifically, the first heat dissipation component is attached to the first sidewall of the light guide. Compared with the solution of using airflow to dissipate heat from the light guide, in this solution the first heat dissipation component directly contacts the light guide, thereby the heat exchange efficiency between the first heat dissipation component and the light guide is higher, and the heat dissipation effect on the light guide is better.

[0033] Furthermore, the skin care device also includes a first heat-conducting element, one end of which is attached to the second sidewall of the light guide and the other end to a first heat dissipation component, so that the first heat dissipation component can also dissipate heat from the second sidewall. In this solution, the addition of the first heat-conducting element directs the heat from the second sidewall of the light guide to the first heat dissipation component, increasing the area and / or number of sidewalls of the light guide that can dissipate heat, thereby improving the heat dissipation effect of the light guide. Moreover, compared to the solution where the first heat dissipation component is bent and separately attached to the first and second sidewalls (when the first and second sidewalls are different sides from the light guide), this solution can use the first heat-conducting element as a medium to direct heat to the first heat dissipation component, so that the position of the first heat dissipation component is not limited by the position of the second sidewall, and the position and shape of the first heat dissipation component can be more flexible. Attached Figure Description

[0034] 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.

[0035] Figure 1 This is a perspective view of a skin care device in one embodiment of the present invention;

[0036] Figure 2 This is an exploded view of a skin care device according to an embodiment of the present invention;

[0037] Figure 3 This is a partial cross-sectional schematic diagram of a skin care device according to an embodiment of the present invention;

[0038] Figure 4 This is a three-dimensional schematic diagram of the combination of components such as the air supply component, the first heat dissipation component, the second heat dissipation component, the fixing bracket, the light-emitting component, and the light guide of the skin care device in one embodiment of the present invention.

[0039] Figure 5 This is a partial cross-sectional view of the first perspective of the combination of the first heat dissipation component, the second heat dissipation component, the fixing bracket, the light-emitting component, and the light guide component of the skin care device in one embodiment of the present invention.

[0040] Figure 6 This is a partial cross-sectional view from a second perspective of the combination of components such as the first heat dissipation component, the second heat dissipation component, the fixing bracket, the light-emitting component, and the light guide of the skin care device in one embodiment of the present invention.

[0041] Figure 7 This is a first exploded view of the skin care device assembly, including a first heat dissipation component, a second heat dissipation component, a fixed bracket, a light-emitting component, and a light guide, in one embodiment of the present invention.

[0042] Figure 8 This is a second exploded view of the skin care device assembly, including a first heat dissipation component, a second heat dissipation component, a fixed bracket, a light-emitting component, and a light guide, in one embodiment of the present invention.

[0043] Figure 9 This is a third exploded view of the combination of the first heat dissipation component, the second heat dissipation component, the fixed bracket, the light-emitting component, and the light guide component of the skin care device in one embodiment of the present invention.

[0044] Figure 10 This is a partial cross-sectional view of the skin care device in another embodiment of the present invention, showing the combination of components such as the first heat dissipation component, the second heat dissipation component, the fixing bracket, the light-emitting component, and the light guide; wherein, the skin care device includes a third heat-conducting component.

[0045] Explanation of icon numbers:

[0046] Skin care device 10;

[0047] Housing 100; First concave shell 110; Second concave shell 120; End shell 130; Receiving cavity 140; Light outlet 150;

[0048] Light-emitting component 200; circuit board 210; light-emitting element 220; protective frame 230;

[0049] Light guide 300; first sidewall 310; second sidewall 320; third sidewall 330; fourth sidewall 340; fifth sidewall 350;

[0050] First heat dissipation component 400; heat exchange sidewall 410; first heat exchange area 411; second heat exchange area 412; third heat exchange area 413; cold surface 420; hot surface 430;

[0051] First heat-conducting component 510; First heat-conducting sheet 511; Second heat-conducting sheet 512; Second heat-conducting component 520; Third heat-conducting sheet 521; Fourth heat-conducting sheet 522; Third heat-conducting component 530;

[0052] Second heat dissipation component 600; heat dissipation pipe 610; first copper pipe 611; second copper pipe 612; heat dissipation fins 620;

[0053] Air supply unit 700;

[0054] Fixed bracket 800; light guide chamber 810; heat dissipation chamber 820; first opening 830; second opening 840;

[0055] First direction X; second direction Y; third direction Z.

[0056] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0057] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0058] Skin treatment devices utilize light of specific wavelengths to achieve whitening, skin care, or hair removal effects. This light is guided to the skin via a light guide. Due to the high energy of the light, the user experiences a burning sensation on the irradiated skin. Furthermore, in some devices, the light guide comes into contact with the skin, and its high temperature further contributes to this burning sensation. Therefore, heat dissipation is necessary to prevent the light guide from becoming too hot and to improve user comfort. In related technologies, one approach to heat dissipate heat from the light guide is to use a cooling airflow. This involves driving relatively cooler air into contact with the sidewall of the light guide, thus removing heat from the device. However, this method is ineffective due to the low heat exchange efficiency of air. Another approach involves using a heat dissipation component with its heat-dissipating end in contact with one sidewall of the light guide, thereby dissipating heat from that side. Because the heat dissipation component directly contacts the light guide, it offers higher heat exchange efficiency and better heat dissipation compared to the previous solution. However, in the above solution, the heat dissipation end of the heat dissipation component can only contact one side wall of the light guide. On the one hand, the heat dissipation area of ​​the light guide is small, resulting in limited heat dissipation; on the other hand, the side of the light guide in contact with the heat dissipation component has good heat dissipation, while the other sides of the light guide have relatively poor heat dissipation, leading to uneven heat dissipation. Furthermore, since the heat dissipation component is either a standard part or its structure cannot be excessively deformed to fit the shape of the light guide, it is difficult to increase the contact area between the heat dissipation component and the light guide, as well as the number of contacting side walls.

[0059] In one of the applicant's initial improvements, multiple heat dissipation components were arranged to contact different walls of the light guide, thereby increasing the heat dissipation area of ​​the light guide and improving heat dissipation efficiency. However, this solution had two drawbacks: firstly, the multiple heat dissipation components occupied a large amount of space, and secondly, the material cost of these components was also high. In a subsequent improvement, the applicant adjusted the heat dissipation end of the heat dissipation component according to the shape of the light guide, allowing the heat dissipation end to contact a larger area or more sidewalls of the light guide. However, this solution presented significant challenges in manufacturing the heat dissipation end and could not simultaneously achieve both effective heat dissipation and a large heat dissipation area (heat dissipation efficiency would be somewhat reduced when the heat dissipation end was irregularly shaped).

[0060] In view of this, see Figures 1-10 In some embodiments of this application, a skin care device 10 is provided, which can improve the heat dissipation effect on the light guide 300. Specifically, the skin care device includes a housing 100, a light-emitting component 200, a light guide 300, a first heat dissipation component 400, and a first heat-conducting component 510.

[0061] See Figures 1-3 The housing 100 defines a receiving cavity 140, and the housing 100 has a light-emitting port 150 communicating with the receiving cavity 140 for emitting treatment light. The light-emitting port 150 is located at one end of the housing 100. During operation of the skin treatment device, the user holds the housing 100 and brings the end of the housing 100 with the light-emitting port 150 close to or against the skin to be treated. The treatment light irradiates the skin to be treated, thereby treating the skin. The specific structure of the housing 100 can be configured according to actual needs. For example, see [link to example]. Figures 1-3 The housing 100 may include a first concave shell 110, a second concave shell 120, and an end shell 130. The first concave shell 110, the second concave shell 120, and the end shell 130 together enclose a receiving cavity 140. The end shell 130 is connected to the same-direction end of the first concave shell 110 and the second concave shell 120. The end shell 130 is provided with the aforementioned light outlet 150. One end of the light guide 300 passes through the light outlet 150 and is positioned on the end shell 130.

[0062] See Figures 3-5The light-emitting component 200 is disposed within the receiving cavity 140 of the housing 100, and generates light for skin care. The care light generated by the light-emitting component 200 is led out of the housing 100 through the light outlet 150. After the care light leading out of the housing 100 irradiates the skin, it can achieve at least one of the following skin care treatments: whitening, freckle removal, skin rejuvenation, or hair removal. For ease of description, the following embodiments use the care light for hair removal as an example. When the care light is used for hair removal, the skin treatment device can be a hair removal device, and the care light can be intense pulsed light, laser, or LED light. The heat energy generated by intense pulsed light, laser, or LED light can destroy the hair follicle and its surrounding stem cells, thereby preventing hair regrowth and achieving the purpose of hair removal.

[0063] The specific structure of the light-emitting component 200 depends on the actual needs; it only needs to be able to generate the light required for skin care. See details... Figure 3 In some embodiments, the light-emitting component 200 may include a light-emitting element 220 and a circuit board 210 connected to the light-emitting element 220. The light-emitting element 220 is electrically connected to the circuit board 210, and the circuit board 210 controls the switching or power level of the light-emitting element 220 according to actual operating conditions. In this embodiment, the light-emitting element 220 is block-shaped and is a surface light source. The light emitted by the light-emitting element 220 is diffused towards the side facing the light outlet 150, thereby concentrating the light. In other embodiments, the light-emitting element 220 may also be tubular, and the light emitted by the light-emitting element 220 is diffused in all directions. In this embodiment, in order to concentrate the light generated by the light-emitting element 220 and lead it out of the light outlet 150 to improve the luminous efficiency, a reflector can be provided. The reflector is provided on the side of the light-emitting element 220 away from the light outlet 150, and the reflector is arranged around the side of the light-emitting element 220 away from the light outlet 150, so as to reflect the light emitted by the light-emitting element 220 towards the side away from the light outlet 150 to the housing 100 exiting from the light outlet 150.

[0064] See Figures 3-6A light guide 300 is disposed within the receiving cavity 140 and connected to the housing 100. The light guide 300 covers the light outlet 150 and is used to guide the light generated by the light-emitting component 200 out of the housing 100 through the light outlet 150. The light guide 300 covering the light outlet 150 makes it difficult for external foreign objects to enter the housing 100 through the light outlet 150, thus improving the sealing effect of the housing 100. The nursing light generated by the light-emitting component 200 enters the light guide 300 from one end, is conducted by the light guide 300, and finally exits the housing 100 through the light outlet 150. The light guide 300 can be made of a material with high light transmittance and high heat resistance. The high light transmittance of the light guide 300 results in low energy loss after the nursing light is conducted through the light guide 300; the heat resistance of the light guide 300 prevents it from deforming or being damaged after absorbing the energy of the nursing light and heating up. For example, the material of the light guide 300 can be sapphire or quartz.

[0065] The light guide 300 can be a single, independent unit, or it can be composed of multiple light-guiding components. See also Figures 3-6 The light guide 300 is a single, independent unit. One end of it is used to receive the treatment light generated by the light-emitting element 200, and the other end is attached to the skin to be treated, thereby guiding the light to the skin. In other embodiments, the light guide 300 may also be composed of multiple components. For example, the light guide 300 may include two parts distributed along a first direction X, with the two parts attached to each other. The part of the light guide 300 near the light-emitting element 220 is used for guiding light, and the part of the light guide 300 near the skin is used not only for guiding light but also for attaching to the skin to be treated. In this embodiment, the two parts of the light guide 300 may be made of the same material or different materials.

[0066] When the skin care device 10 is in operation, the care light shines on the skin. Due to the high energy of the care light, the user will experience a burning sensation on the irradiated skin. To improve the user experience, the light guide 300 can be cooled. When the temperature of the light guide 300 is lowered, on the one hand, the heat conducted from the light-emitting element 220 to the user's skin through the light guide 300 is reduced; on the other hand, since the light guide 300 can directly contact the skin irradiated by the care light, cooling the light guide 300 can also have a certain cooling effect on the skin, thereby relieving the user's burning sensation. The light guide 300 has a first sidewall 310 and a second sidewall 320. The skin care device 10 reduces the temperature of the light guide 300 by dissipating heat from the first sidewall 310 and the second sidewall 320.

[0067] See Figures 6-7The skin care device 10 cools the light guide 300 via a first heat dissipation assembly 400. The first heat dissipation assembly 400 is disposed in the receiving cavity 140 and is in contact with the first sidewall 310 of the light guide 300 to exchange heat, thereby cooling the light guide 300. The specific structure of the first heat dissipation assembly 400 depends on actual needs; it only needs to be able to cool the light guide 300. In some embodiments, see... Figure 6 The first heat dissipation component 400 can be a semiconductor cooling chip. In other embodiments, the first heat dissipation component 400 may also include a heat dissipation copper pipe. The specific structure of the first heat dissipation component 400 is described in detail below. In this embodiment, the first heat dissipation component 400 is attached to the first sidewall 310 of the light guide 300. Compared with the scheme of using heat dissipation airflow to dissipate heat from the light guide 300, in this scheme the first heat dissipation component 400 directly contacts the light guide 300, thereby the heat exchange efficiency between the first heat dissipation component 400 and the light guide 300 is higher, and the heat dissipation effect on the light guide 300 is better.

[0068] See Figure 3 as well as Figures 6-7 A first heat-conducting element 510 is disposed in the receiving cavity 140. One end of the first heat-conducting element 510 is attached to the second sidewall 320 of the light guide 300, and the other end is attached to the first heat dissipation assembly 400, so as to conduct heat from the light guide 300 to the first heat dissipation assembly 400, thereby allowing the first heat dissipation assembly 400 to indirectly cool the second sidewall 320 through the first heat-conducting element 510. The first heat-conducting element 510 is mainly used for heat transfer between the light guide 300 and the first heat dissipation assembly 400, therefore, the first heat-conducting element 510 can be made of a material with high thermal conductivity. The material of the first heat-conducting element 510 can be a metallic material or a non-metallic material. When the material of the first heat-conducting element 510 is a metallic material, for example, the material of the first heat-conducting element 510 can be at least one of gold, silver, copper, iron, aluminum, tungsten, zinc, magnesium, and titanium or an alloy of at least one of them. When the material of the first heat-conducting element 510 is a non-metallic material, for example, the material of the first heat-conducting element 510 can be at least one of diamond, graphite, silicon carbide, silicon nitride, etc.

[0069] In this embodiment, one end of the first heat-conducting element 510 is attached to the second sidewall 320 of the light guide 300, and the other end is attached to the first heat dissipation assembly 400, so that the first heat dissipation assembly 400 can also dissipate heat from the second sidewall 320. Because the first heat-conducting element 510 directs the heat from the second sidewall 320 of the light guide 300 to the first heat dissipation assembly 400, the area and / or number of sidewalls of the light guide 300 capable of heat dissipation are increased, thereby improving the heat dissipation effect of the light guide 300. Furthermore, compared to the solution where the first heat dissipation component 400 is bent or deformed to fit the first sidewall 310 and the second sidewall 320 respectively (when the first sidewall 310 and the second sidewall 320 are different sides from the light guide 300), this solution can guide heat to the first heat dissipation component 400 through the first heat conduction component 510 as a medium, so that the position arrangement of the first heat dissipation component 400 is not limited by the position of the second sidewall 320, and the position arrangement and shape structure of the first heat dissipation component 400 can be more flexible.

[0070] It should be noted that the first sidewall 310 and the second sidewall 320 can be two sidewalls on different sides of the light guide 300, or they can be two regions of a sidewall on the same side of the light guide 300. When the first sidewall 310 and the second sidewall 320 are two sidewalls on different sides of the light guide 300, they can be two adjacent sidewalls of the light guide 300 or two opposite sidewalls of the light guide 300. When the first sidewall 310 and the second sidewall 320 are two regions of a sidewall of the light guide 300, they can be coplanar.

[0071] For example, when the light guide 300 is a basically regular quadrangular prism, the light guide 300 has six sides, which means it has six sidewalls. The first sidewall 310 and the second sidewall 320 can be any two of the six sidewalls, or they can be two different regions of any one of the six sidewalls. When the first sidewall 310 and the second sidewall 320 are two of the six sidewalls, the first heat-conducting member 510 can increase the number of heat-conducting sidewalls of the light guide 300, thereby improving the heat exchange effect of the light guide 300. When the first sidewall 310 and the second sidewall 320 are two different areas of the same sidewall, by setting the first heat-conducting element 510, the heat exchange area can be increased without changing the shape of the first heat dissipation component 400. This is because the structure of the first heat dissipation component 400 may be a standard part, or the first heat dissipation component 400 may be difficult to adapt to the specific shape of the light guide 300, making it impossible for the first heat dissipation component 400 to completely fit one entire sidewall of the light guide 300. In this case, the area of ​​the sidewall of the light guide 300 that is in contact with the first heat dissipation component 400 is the first sidewall 310, and the area that is not directly in contact with the first heat dissipation component 400 is the second sidewall 320. By setting the first heat-conducting element 510, the heat exchange area between the light guide 300 and the first heat dissipation component 400 can be increased.

[0072] For ease of description, the following embodiments will be illustrated by taking the first sidewall 310 and the second sidewall 320 as two sidewalls on different sides of the light guide 300.

[0073] The first sidewall 310 and the second sidewall 320 can be any two sidewalls of the light guide 300 suitable for heat dissipation. For example, see... Figures 6-7In some embodiments, the direction parallel to the axis of the light outlet 150 is the first direction X. The light outlet 150 is located on one side of the light guide 300 along the first direction X, and the light-emitting component 200 can be located on the other side of the light guide 300 along the first direction X. The nursing light generated by the light-emitting component 200 is led out of the light outlet 150 along the first direction X through the light guide 300. The first sidewall 310 is located on one side of the light guide 300 along a direction perpendicular to the first direction X, and the second sidewall 320 is located on the other side of the light guide 300 along a direction perpendicular to the first direction X. In other words, in this embodiment, the first sidewall 310 and the second sidewall 320 are located on the outer periphery of the light guide 300 along an axis parallel to the first direction X. Compared with the scheme where the first sidewall 310 and the second sidewall 320 are located on both sides of the light guide 300 along the first direction X, in this embodiment, neither the first heat dissipation component 400 nor the first light guide 300 will block the light transmission within the light guide 300, thus ensuring the good light guiding function of the light guide 300. In other embodiments, the first sidewall 310 and the second sidewall 320 may also be located on both sides of the light guide 300 along the first direction X. In this case, for example, the sidewall of the light guide 300 along the first direction X can simultaneously adhere to the first heat dissipation component 400 and the light emission component 200, and the first heat dissipation component 400 and the light emission component 200 can be made not to overlap along the first direction X by increasing the volume of the light guide 300; the sidewall of the light guide 300 along the other side of the first direction X can cover the light outlet 150 and also adhere to the first heat conduction component 510, and the first heat conduction component 510 and the light outlet 150 can be made not to overlap along the first direction X by increasing the volume of the light guide 300.

[0074] In the above embodiments, the first sidewall 310 and the second sidewall 320 can be two of a plurality of sidewalls of the light guide 300 perpendicular to the first direction X, and the first sidewall 310 and the second sidewall 320 can be arranged adjacent to each other or opposite to each other. See Figures 6-7In some embodiments, the second direction Y and the third direction Z are perpendicular to the first direction X, and the second direction Y and the third direction Z intersect each other (specifically, they can be perpendicular). The first sidewall 310 is located on one side of the light guide 300 along the second direction Y, and the second sidewall 320 is located on one side of the light guide 300 along the third direction Z. In this arrangement, the first sidewall 310 and the second sidewall 320 can be specifically located on adjacent sides of the light guide 300, so that the distance between the first heat conduction element 510 and the first heat dissipation assembly 400 is relatively close, which facilitates the first heat conduction element 510 to conduct the heat of the second sidewall 320 to the first heat dissipation assembly 400. In other embodiments, the first sidewall 310 and the second sidewall 320 can also be located on opposite sides of the light guide 300 along the second direction Y, or on opposite sides of the light guide 300 along the third direction Z. In this embodiment, the two opposite sidewalls of the light guide 300 can dissipate heat simultaneously, so that the heat dissipation of the light guide 300 is more uniform and thus it is less likely to deform due to uneven temperature on both sides.

[0075] The first heat-conducting element 510 can be used to direct heat from one sidewall of the light guide 300 to the first heat dissipation assembly 400. The first heat-conducting element 510 can also direct heat from multiple sidewalls of the light guide 300 to the first heat dissipation assembly 400. See also... Figures 6-7 In some embodiments, the first heat-conducting element 510 only adheres to the second sidewall 320 of the light guide 300, thereby directing heat from the second sidewall 320 of the light guide 300 to the first heat dissipation assembly 400. In other embodiments, the first heat-conducting element 510 may also adhere to other sidewalls of the light guide 300 besides the first sidewall 310 and the second sidewall 320, thereby conducting heat from multiple sidewalls of the light guide 300 to the first heat dissipation assembly 400 to improve the heat dissipation effect of the light guide 300.

[0076] To further improve the heat dissipation effect of the light guide 300, in some embodiments, the skin treatment device may be equipped with multiple heat-conducting components for auxiliary heat dissipation. Specifically, see... Figures 6-7 The light guide 300 has a third sidewall 330, and the skin care device 10 also includes a second heat-conducting element 520, one end of which is attached to the third sidewall 330 and the other end of which is attached to the first heat dissipation component 400. In this solution, the skin care device includes at least two heat-conducting elements, namely the first heat-conducting element 510 and the second heat-conducting element 520. Compared with a solution that only has one heat-conducting element for auxiliary heat conduction, the addition of the second heat-conducting element 520 for auxiliary heat dissipation increases the number and area of ​​the sidewalls of the light guide 300 used for heat dissipation, thereby improving the heat dissipation effect and heat dissipation uniformity of the light guide 300.

[0077] The third sidewall 330 and the second sidewall 320 can be sidewalls on two different sides of the light guide 300, or they can be two regions on a sidewall of the same side of the light guide 300. See Figures 6-7 In some embodiments, the third sidewall 330 and the second sidewall 320 are two sidewalls on different sides of the light guide 300, and the third sidewall 330 and the second sidewall 320 are located on opposite sides of the light guide 300 along the third direction Z. In this scheme, on the one hand, the opposite sides of the light guide 300 can assist in heat dissipation, so the heat dissipation of the light guide 300 is more uniform; on the other hand, the first heat conduction element 510 and the second heat conduction element 520 are less likely to interfere with each other in position. The first heat conduction element 510 and the second heat conduction element 520 are also located on opposite sides of the first heat dissipation assembly 400 along the third direction Z, and the two are more likely to fit into two different areas of the first heat dissipation assembly 400 along the third direction Z.

[0078] See Figure 10 In some embodiments, the light guide 300 further has a fourth sidewall 340 disposed opposite to the first sidewall 310 along the second direction Y. The skin care device 10 also includes a third heat-conducting element 530, which is attached to the fourth sidewall 340, and one end of the third heat-conducting element 530 along the third direction Z is connected to the first heat-conducting element 510, and the other end along the third direction Z is connected to the second heat-conducting element 520. In this embodiment, on the one hand, the light guide 300 has more sidewalls for heat dissipation, resulting in better heat dissipation; on the other hand, since the third heat-conducting element 530 is connected to both the first heat-conducting element 510 and the second heat-conducting element 520, the third heat-conducting element 530 can guide the heat of the fourth sidewall 340 to the first heat dissipation assembly 400 through the first heat-conducting element 510 and the second heat-conducting element 520. Compared with the solution where the third heat-conducting element 530 surrounds the light guide 300 and eventually contacts the first heat dissipation assembly 400, the structure of the third heat-conducting element 530 in this solution is simpler.

[0079] In some embodiments, the third heat-conducting element 530 can be detachably connected to the first heat-conducting element 510 and the second heat-conducting element 520, respectively. That is, the third heat-conducting element 530 can contact the first heat-conducting element 510 and the second heat-conducting element 520, and the three can be separately disposed from each other. In other embodiments, the third heat-conducting element 530 can be integrally connected to the first heat-conducting element 510 and the second heat-conducting element 520. Exemplarily, the first heat-conducting element 510, the second heat-conducting element 520, and the third heat-conducting element 530 can be integrally bent from a metal strip. The two ends of the metal strip are respectively attached to the two sides of the sidewall of the first heat dissipation assembly 400 facing the light guide element 300 along the third direction Z. The metal strip and the first heat dissipation assembly 400 together surround the outer periphery of the light guide element 300, so that the light guide element 300 can be well dissipated at all points of the outer peripheral wall around the axis parallel to the first direction X, further improving the heat dissipation uniformity and heat dissipation efficiency of the light guide element 300.

[0080] The first heat-conducting element 510 and the light-guide element 300 can be attached to the same sidewall of the first heat dissipation assembly 400, or they can be attached to different sidewalls of the first heat dissipation assembly 400. See also Figures 6-9 In some embodiments, the first heat-conducting element 510 and the light guide element 300 are attached to the same sidewall of the first heat dissipation assembly 400. Specifically, the first heat dissipation assembly 400 is located on one side of the light guide element 300 along the second direction Y. The first heat dissipation assembly 400 has a heat exchange sidewall 410 facing the light guide element 300. The heat exchange sidewall 410 has a first heat exchange region 411 and a second heat exchange region 412. The first sidewall 310 is attached to the first heat exchange region 411. The first heat-conducting element 510 is bent and includes a first heat-conducting sheet 511 and a second heat-conducting sheet 512 bent and connected to each other. The first heat-conducting sheet 511 is attached to the second sidewall 320, and the second heat-conducting sheet 512 is attached to the second heat exchange region 412. In this design, the first heat exchange area 411 and the second heat exchange area 412 are two different areas of the same sidewall of the first heat dissipation component 400. That is, the second heat-conducting sheet 512 and the light guide 300 are attached to the same sidewall of the first heat dissipation component 400. Compared with the design where the second heat-conducting sheet 512 and the light guide 300 are attached to different sidewalls of the first heat dissipation component 400, this design facilitates the assembly of the first heat dissipation component 400. In the specific assembly process, the first heat-conducting sheet 510 and the light guide 300 can be assembled first, and then the first heat dissipation component 400 can be assembled. During the assembly of the first heat dissipation component 400, the first heat-conducting sheet 510 and the light guide 300 can be attached simultaneously, and the positioning between the first heat-conducting sheet 510 and the first heat dissipation component 400, as well as between the light guide 300 and the first heat dissipation component 400, can be completed simultaneously.

[0081] See Figures 6-9 In some embodiments, the skin care device 10 further includes a second heat-conducting element 520, which can be attached to the same sidewall of the first heat dissipation assembly 400 as the light guide element 300, or the second heat-conducting element 520 and the light guide element 300 can be attached to different sidewalls of the first heat dissipation assembly 400. See also Figure 6In some embodiments, the second heat-conducting element 520 and the light guide element 300 are attached to the same sidewall of the first heat dissipation assembly 400. Specifically, the first heat dissipation assembly 400 is located on one side of the light guide element 300 along the second direction Y. The first heat dissipation assembly 400 has a heat exchange sidewall 410 facing the light guide element 300. The heat exchange sidewall 410 has a first heat exchange region 411 and a third heat exchange region 413. The first sidewall 310 is attached to the first heat exchange region 411. The second heat-conducting element 520 is bent and includes a third heat-conducting sheet 521 and a fourth heat-conducting sheet 522 that are bent and connected to each other. The third heat-conducting sheet 521 is attached to the third sidewall 330, and the fourth heat-conducting sheet 522 is attached to the third heat exchange region 413. In this design, the first heat exchange area 411 and the third heat exchange area 413 are two different areas of the same sidewall of the first heat dissipation component 400. That is, the fourth heat-conducting sheet 522 and the light guide 300 are attached to the same sidewall of the first heat dissipation component 400. Compared with the design where the fourth heat-conducting sheet 522 and the light guide 300 are attached to different sidewalls of the first heat dissipation component 400, this design facilitates the assembly of the first heat dissipation component 400. In the specific assembly process, the second heat-conducting component 520 and the light guide 300 can be assembled first, and then the first heat dissipation component 400 can be assembled. During the assembly of the first heat dissipation component 400, the fourth heat-conducting sheet 522 and the light guide 300 can be attached simultaneously. The positioning between the second heat-conducting component 520 and the first heat dissipation component 400, as well as between the light guide 300 and the first heat dissipation component 400, can be completed simultaneously.

[0082] See Figure 6 In some embodiments, the heat exchange sidewall 410 is a planar wall, and the surface of the second heat-conducting plate 512 facing the heat exchange sidewall 410 is coplanar with the first sidewall 310. That is, the surface of the first heat dissipation assembly 400 facing the first sidewall 310 is a planar wall. This solution helps to simplify the design of the first heat dissipation assembly 400, reduce manufacturing costs, and improve overall heat dissipation efficiency.

[0083] See Figures 6-7 In some embodiments, along the second direction Y, the width of the wall surface where the first heat-conducting sheet 511 contacts the second sidewall 320 is equal to the width of the second sidewall 320. In this design, the width of the first heat-conducting sheet 511 along the second direction Y is greater than or equal to the width of the second sidewall 320, and the first heat-conducting sheet 511 completely conforms to all positions of the second sidewall 320 along the second direction Y. This design increases the contact area between the first heat-conducting sheet 511 and the second sidewall 320, and due to the increased contact area, the heat conduction efficiency is significantly improved. Furthermore, this design makes the heat dissipation system more space-efficient and reduces component volume.

[0084] See Figures 6-8In some embodiments, the skin care device 10 further includes a fixing bracket 800 disposed in the receiving cavity 140. Specifically, the fixing bracket 800 defines a light guide chamber 810. The fixing bracket 800 has a first opening 830 communicating with the light guide chamber 810 on the side near the light outlet 150, and a second opening 840 communicating with the light guide chamber 810 on the side away from the light outlet 150. The light guide 300 is at least partially disposed in the light guide chamber 810 and fixed to the fixing bracket 800. The light-emitting component 200 is connected to the side of the fixing bracket 800 away from the light outlet 150, and the care light generated by the light-emitting component 200 enters the light guide chamber 810 through the second opening 840, is conducted by the light guide 300, and exits the light guide chamber 810 through the first opening 830. In this design, both the light guide 300 and the light-emitting component 200 can be fixed to the fixing bracket 800, improving integration and achieving a compact structural design of the skin care device 10. In a further implementation, the first heat dissipation component 400 can also be fixed to the fixed bracket 800, thereby further improving the integration of the skin treatment device.

[0085] See Figures 6-8 In some embodiments, the first sidewall 310 of the light guide 300 is at least partially located within the light guide cavity 810, thereby allowing the first heat dissipation assembly 400 to at least partially extend into the light guide cavity 810 and conform to the first sidewall 310. In this configuration, one side of the first sidewall 310 of the light guide 300 does not need to extend beyond the light guide cavity 810, preventing light generated by the light-emitting assembly 200 from escaping from the portion of the light guide 300 extending beyond the light guide cavity 810 to other parts of the housing 100 and thus reducing light extraction efficiency.

[0086] See Figures 6-8 In some embodiments, the first heat-conducting element 510 extends at least partially into the light-guiding chamber 810 and conforms to the second sidewall 320. In this configuration, the second sidewall 320 is located within the light-guiding chamber 810, so one side of the second sidewall 320 of the light guide element 300 does not need to extend beyond the light-guiding chamber 810. This prevents light generated by the light-emitting component 200 from escaping from the portion of the light guide element 300 extending beyond the light-guiding chamber 810 to other parts of the housing 100, thus reducing light emission efficiency. Simultaneously, this design allows the skin care device 10 to maintain a compact structure while also possessing good heat dissipation performance, ensuring the stability and durability of the light-emitting component 200 during long-term operation.

[0087] See Figures 6-8In some embodiments, the fixing bracket 800 further defines a heat dissipation chamber 820 communicating with the light guiding chamber 810, the heat dissipation chamber 820 being located on one side of the light guiding chamber 810 along the second direction Y. A first heat dissipation component 400 is located in the heat dissipation chamber 820, and a first heat-conducting element 510 at least partially extends into the heat dissipation chamber 820 and is attached to the first heat dissipation component 400. In this configuration, since the first heat dissipation component 400 at least partially extends into the heat dissipation chamber 820, the fixing bracket 800 can limit the position of the first heat dissipation component 400, facilitating its assembly.

[0088] See Figures 6-8 In some embodiments, the width of the heat dissipation chamber 820 is greater than the width of the light guide chamber 810 along the third direction Z. The first heat dissipation assembly 400 has a heat exchange sidewall 410 facing the light guide element 300. The heat exchange sidewall 410 has a first heat exchange region 411 and a second heat exchange region 412. When viewed along the second direction Y, the first heat exchange region 411 coincides with the light guide chamber 810, and the second heat exchange region 412 is located on one side of the light guide chamber 810 along the third direction Z. The first sidewall 310 is attached to the first heat exchange region 411, and the first heat conductor 510 is attached to the second heat exchange region 412. In this scheme, on the one hand, the spatial layout of the light guide cavity 810 is made more compact, so that the fixing bracket 800 is more stable in fixing the light guide 300; on the other hand, the first heat conduction component 510 can be completely fixed in the fixing bracket 800, and by making the first heat conduction component 510 bend in an L-shape, the second heat conduction sheet 512 of the first heat conduction component 510 is clamped between the first heat dissipation component 400 and the fixing bracket 800, so that the positioning of the first heat conduction component 510 is more stable.

[0089] See Figures 6-9 In a further embodiment, along the third direction Z, the heat exchange sidewall 410 also has a third heat exchange region 413. Viewed along the second direction Y, the third heat exchange region 413 is located on the side of the first heat exchange region 411 facing away from the second heat exchange region 412. The third heat-conducting sheet 521 of the second heat-conducting element 520 extends into the light-guiding chamber 810 and adheres to the third sidewall 330 of the light-guiding element 300. The fourth heat-conducting sheet 522 of the second heat-conducting element 520 extends into the heat dissipation chamber 820 and adheres to the third heat exchange region 413. In this configuration, the second heat-conducting element 520 can be completely fixed within the fixing bracket 800. Furthermore, by making the second heat-conducting element 520 L-shaped, the fourth heat-conducting sheet 522 of the second heat-conducting element 520 is clamped between the first heat dissipation assembly 400 and the fixing bracket 800, thereby making the positioning of the first heat-conducting element 510 more stable.

[0090] See Figure 3 , Figure 5 as well as Figure 8In some embodiments, the light-emitting component 200 is at least partially inserted through the second opening 840. The light-emitting component 200 includes a light-emitting element 220 and a protective frame 230 surrounding the light-emitting element 220. The protective frame 230 not only fixes and protects the light-emitting element 220 but also further optimizes the light transmission efficiency. Furthermore, the material selection for the protective frame 230 also considers thermal conductivity, ensuring that heat is effectively dissipated during operation of the entire light-emitting component 200, thus improving the lifespan and safety of the device. The light guide 300 has a fifth sidewall 350 on the side opposite to the light outlet 150, with the light-emitting element 220 facing the fifth sidewall 350, and the protective frame abutting against the fifth sidewall 350. In this design, the protective frame 230 can position the light guide 300, limiting its displacement along the first direction X, thus improving the stability of the light guide 300's positioning.

[0091] See Figure 3 , Figure 5 as well as Figure 8 In some embodiments, the side of the first heat-conducting element 510 facing away from the first opening 830 abuts against the protective frame 230. In this design, the protective frame 230 can also position the first heat-conducting element 510 to limit its displacement along the first direction X, thereby improving the positioning stability of the first heat-conducting element 510. In other embodiments, the second heat-conducting element 520 also adopts a similar design, with its side facing away from the first opening 830 also abutting against the protective frame 230 to limit its displacement along the first direction X, thereby improving the positioning stability of the second heat-conducting element 520.

[0092] See Figures 6-8 In some embodiments, the first heat dissipation component 400 is a semiconductor heat sink, also known as a thermocouple, Peltier effector, or thermoelectric cooler, which is a cooling device based on the thermoelectric effect (especially the Peltier effect). This device effectively transfers heat during the cooling process through the Peltier effect, improving heat exchange efficiency. Specifically, the semiconductor heat sink includes a cold surface 420 and a hot surface 430 disposed opposite each other. When the semiconductor heat sink is working, heat from the cold surface 420 is transferred to the hot surface 430. The first sidewall 310 and the first heat-conducting element 510 are both attached to the cold surface 420, thereby transferring heat from the first sidewall 310 and the second sidewall 320 of the light guide 300 to the hot surface 430.

[0093] See Figure 4 as well as Figures 7-8In some embodiments, the skin care device 10 further includes a second heat dissipation assembly 600, which includes heat dissipation fins 620 and heat dissipation pipes 610. One end of the heat dissipation pipe 610 is connected to the heat dissipation fins 620, and the other end is used to collect heat from the heat surface 430. Specifically, the skin care device may also include an air supply assembly 700, which generates an airflow that exchanges heat with the heat dissipation fins 620. As a result, the heat of the light guide 300 is transferred to the first heat dissipation assembly 400, the heat of the first heat dissipation assembly 400 is transferred to the heat dissipation pipe 610, the heat of the heat dissipation pipe 610 is transferred to the heat dissipation fins 620, and the heat of the heat dissipation fins 620 is transferred to the airflow that exchanges heat with them. Finally, the hot airflow after heat exchange is discharged outside the housing 100, thereby achieving complete heat dissipation of the light guide 300.

[0094] See Figures 3-4 In some embodiments, the heat sink 610 may include a first copper pipe 611 and a second copper pipe 612. The first copper pipe 611 is used to collect heat from the first heat sink component 400, and the second copper pipe 612 is used to collect heat from the light-emitting component 200. Both the end of the first copper pipe 611 facing away from the first heat sink component 400 and the end of the second copper pipe 612 facing away from the light-emitting component 200 are connected to heat dissipation fins 620, thereby enabling the second heat sink component 600 to simultaneously dissipate heat from both the light guide component 300 and the light-emitting component 200. Compared to a solution that uses two separate heat sinks to dissipate heat from the light-emitting component 200 and the light guide component 300 respectively, the solution in this embodiment reduces the number of heat sinks, lowers material costs, and reduces the space occupied by the heat sinks, resulting in a more compact structure.

[0095] It should be noted that if any directional indication (such as up, down, left, right, front, back, etc.) is involved in the embodiments of this utility model, such directional indication is only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indication will also change accordingly. When a directional reference is introduced in a specific embodiment, unless the direction is specifically limited to unidirectional, the direction can be unidirectional or bidirectional (two parallel and opposite directions). Whether it is unidirectional or bidirectional depends on what those skilled in the art can achieve. When the directional reference is bidirectional, it should be considered that two parallel and different embodiments have been introduced simultaneously.

[0096] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or," "and / or," or "and / or" throughout the text implies three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where A and B are simultaneously satisfied. 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 impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0097] The above are merely preferred embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural transformations made based on the inventive concept of this utility model and the contents of this utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of this utility model.

Claims

1. A skin care device, characterized in that, include: A housing defines a receiving cavity, and the housing is provided with a light outlet communicating with the receiving cavity; A light-emitting component is disposed in the receiving cavity, the light-emitting component generating light for skin care; A light guide is disposed within the receiving cavity and connected to the housing. The light guide covers the light outlet and is used to guide the light generated by the light-emitting component out of the housing through the light outlet. The light guide has a first sidewall and a second sidewall. A first heat dissipation component is disposed in the receiving cavity, and the first heat dissipation component is attached to the first sidewall; A first heat-conducting element is disposed in the receiving cavity, with one end of the first heat-conducting element attached to the second sidewall and the other end attached to the first heat dissipation component.

2. The skin care device as described in claim 1, characterized in that, The direction parallel to the axis of the light outlet is the first direction, the first sidewall is located on one side of the light guide along the direction perpendicular to the first direction, and the second sidewall is located on the other side of the light guide along the direction perpendicular to the first direction.

3. The skin care device as described in claim 2, characterized in that, The second direction and the third direction are perpendicular to the first direction, and the second direction and the third direction intersect each other. The first sidewall is located on one side of the light guide along the second direction, and the second sidewall is located on one side of the light guide along the third direction.

4. The skin care device as described in claim 3, characterized in that, The light guide has a third sidewall, which is located on opposite sides of the second sidewall along the third direction of the light guide; The skin care device further includes a second heat-conducting element, one end of which is attached to the third sidewall and the other end of which is attached to the first heat dissipation component.

5. The skin care device as described in claim 4, characterized in that, The light guide also has a fourth sidewall disposed opposite to the first sidewall along the second direction; The skin care device further includes a third heat-conducting element, which is attached to the fourth sidewall, and one end of the third heat-conducting element is connected to the first heat-conducting element along the third direction, and the other end of the third heat-conducting element is connected to the second heat-conducting element along the third direction.

6. The skin care device as described in claim 3, characterized in that, The first heat dissipation component is located on one side of the light guide along the second direction. The first heat dissipation component has a heat exchange sidewall facing the light guide. The heat exchange sidewall has a first heat exchange area and a second heat exchange area. The first sidewall is attached to the first heat exchange area. The first heat-conducting element is bent and includes a first heat-conducting sheet and a second heat-conducting sheet bent and connected to each other. The first heat-conducting sheet is attached to the second sidewall, and the second heat-conducting sheet is attached to the second heat exchange area.

7. The skin care device as described in claim 6, characterized in that, The heat exchange sidewall is a planar wall, and the surface of the second heat-conducting plate facing the heat exchange sidewall is coplanar with the first sidewall; And / or, Along the second direction, the width of the wall surface in contact with the second sidewall of the first heat-conducting sheet is equal to the width of the second sidewall.

8. The skin care device as described in claim 3, characterized in that, The skin care device further includes a fixed bracket disposed in the receiving cavity, the fixed bracket defining a light guide chamber, the fixed bracket having a first opening communicating with the light guide chamber on the side near the light outlet and a second opening communicating with the light guide chamber on the side away from the light outlet, the light guide element being at least partially disposed in the light guide chamber, the light from the light-emitting component being adapted to enter the light guide chamber through the second opening and be conducted through the light guide element and exit the light guide chamber through the first opening; The first sidewall is at least partially located within the light guide cavity, and the first heat-conducting element extends at least partially into the light guide cavity and adheres to the second sidewall.

9. The skin care device as described in claim 8, characterized in that, The fixed bracket further defines a heat dissipation chamber that communicates with the light guide chamber. The heat dissipation chamber is located on one side of the light guide chamber along the second direction. The first heat dissipation component is located in the heat dissipation chamber, and the first heat-conducting element extends at least partially into the heat dissipation chamber and is attached to the first heat dissipation component.

10. The skin care device as claimed in claim 9, characterized in that, Along the third direction, the width of the heat dissipation chamber is greater than the width of the light guide chamber; The first heat dissipation component has a heat exchange sidewall facing the light guide element. The heat exchange sidewall has a first heat exchange area and a second heat exchange area. When viewed along the second direction, the first heat exchange area coincides with the light guide cavity, and the second heat exchange area is located on one side of the light guide cavity along the third direction. The first sidewall is attached to the first heat exchange area, and the first heat-conducting element is attached to the second heat exchange area.

11. The skin care device as claimed in claim 8, characterized in that, The light-emitting component is at least partially inserted through the second opening, and the light-emitting component includes a light-emitting element and a protective frame disposed around the outer periphery of the light-emitting element; The light guide has a fifth sidewall on the side away from the light outlet, the light-emitting element faces the fifth sidewall, and the protective frame abuts against the fifth sidewall; and / or, the first heat-conducting element abuts against the protective frame on the side away from the first opening.

12. The skin care device as claimed in claim 1, characterized in that, The first heat dissipation component is a semiconductor heat sink, which includes a cold surface and a hot surface disposed opposite to each other, and the first sidewall and the first thermal conductive element are both attached to the cold surface.

13. The skin care device as claimed in claim 12, characterized in that, The skin care device further includes a second heat dissipation component, which includes heat dissipation fins and a heat dissipation pipe. One end of the heat dissipation pipe is connected to the heat dissipation fins, and the other end is used to obtain heat from the heated surface.

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