Skin treatment equipment

Abstract

The utility model discloses skin treatment equipment which comprises a shell, a light emitting assembly, a cold compress assembly and a heat dissipation assembly. The heat dissipation assembly is arranged in the shell, a first air duct, a second air duct and a third air duct are formed in the heat dissipation assembly and / or the shell, and the heat dissipation assembly comprises a fan, a heat conduction piece, and a plurality of first heat dissipation fins and a plurality of second heat dissipation fins which are arranged on the heat conduction piece; one end of the heat conduction piece is in heat conduction connection with the cold compress assembly; the second air channel and the third air channel are located on the two sides of the heat conduction piece respectively, the draught fan directly faces and communicates with one end of the first air channel, one end of the second air channel and one end of the third air channel, at least part of the light emitting assembly is arranged in the first air channel, the first cooling fin and the second cooling fin extend in the direction close to the draught fan, at least part of the first cooling fin is arranged in the second air channel, and at least part of the second cooling fin extends in the direction close to the draught fan. The second cooling fins are at least partially arranged in the third air channel. According to the heat dissipation device, air flowing out of the fan can smoothly flow into the first air duct, the second air duct and the third air duct, so that the heat dissipation effect is improved.

Description

Technical Field

[0001] The present application belongs to the technical field of beauty equipment, and in particular to a skin treatment equipment. Background Art

[0002] Hair removal devices, skin rejuvenation devices, etc. are commonly used skin care devices in people's lives. These skin care devices mainly irradiate the user's skin with IPL (intense pulsed light), thereby achieving effects such as hair removal and photorejuvenation on the user's skin.

[0003] Taking a hair removal device as an example, the hair removal device includes a housing, an IPL light source and a cold compress component. The housing is provided with a light emitting area, the IPL light source is arranged in the housing and is used to generate light from the light emitting area to the skin, and the cold compress component is arranged at the light emitting area for applying cold compress to the skin.

[0004] In the related art, in order to improve the safety of use, it is necessary to dissipate heat for the IPL light source and the cold compress component. However, the heat dissipation effect of the skin treatment device in the related art needs to be improved. Utility Model Content

[0005] The embodiment of the present application provides a skin treatment device, which can improve the technical problem of poor heat dissipation effect of the skin treatment device.

[0006] The present application embodiment provides a skin treatment device, comprising:

[0007] A housing, wherein the housing is provided with a light outlet area, a first air outlet, and a second air outlet;

[0008] A light emitting component, which is disposed in the housing and is used to generate light that is emitted toward the skin to be treated through the light emitting area;

[0009] A cold compress component, which is disposed at the light emitting area and is used for applying a cold compress to the skin to be treated; and

[0010] A heat dissipation component, wherein the heat dissipation component is arranged in the shell, the heat dissipation component and / or the shell form a first air duct, a second air duct and a third air duct, the heat dissipation component includes a fan, a heat conductive member, and a plurality of first heat sinks and a plurality of second heat sinks respectively arranged on both sides of the heat conductive member, the fan is arranged on a side of the light emitting component away from the light emitting area, one end of the heat conductive member is thermally connected to the cold compress component, and the other end extends toward the fan; the second air duct and the third air duct are respectively located on both sides of the heat conductive member, the first fan port of the fan is connected to the second air port, the second fan port of the fan is respectively connected to the first air port ends of the first air duct, the second air duct and the third air duct, and the second air port ends of the first air duct, the second air duct and the third air duct are all connected to the first air port; the light emitting component is at least partially arranged in the first air duct; the first heat sink and the second heat sink both extend along the light emitting area toward the fan, the first heat sink is at least partially arranged in the second air duct, and the second heat sink is at least partially arranged in the third air duct.

[0011] Optionally, a first flow space is provided between a side of the second heat sink facing away from the heat conducting member and an inner wall of the third air duct, and the third air duct is connected to the first air outlet through the first flow space; and / or,

[0012] A second flow space is defined between a side of the second heat sink facing away from the fan and an inner wall of the third air duct, and the third air duct is connected to the first air outlet through the second flow space.

[0013] Optionally, the first flow space is connected to a side of the light emitting component in the first air duct close to the first air outlet; and / or,

[0014] The housing includes an air duct side plate located on a side of the heat conducting member away from the third air duct, the second air duct is located between the heat conducting member and the air duct side plate, and the first air outlet is provided on the air duct side plate.

[0015] Optionally, when the shell includes the air duct side plate, the skin treatment device also includes a circuit board, the circuit board is arranged in the shell, the circuit board is located on the side of the heat conductor away from the air duct side plate, and the light output component is located between the heat conductor and the circuit board and is electrically connected to the circuit board.

[0016] Optionally, the circuit board is provided with electronic components, wherein at least part of the electronic components are located on a side of the circuit board facing the light emitting assembly.

[0017] Optionally, the plurality of first heat sinks and the plurality of second heat sinks form a first connecting air duct on a side of the first air outlet end of the first air duct away from the length direction of the light output component, and at least one of the first air duct, the first flow space and the second flow space is connected to the first air outlet through the first connecting air duct; and / or

[0018] The plurality of first heat sinks and the plurality of second heat sinks form a second connecting air duct on one side of the first air outlet end of the first air duct in the length direction of the light output component, and at least one of the first flow space and the second flow space is connected to the first air outlet through the second connecting air duct; and / or

[0019] The second air outlet is provided on the air duct side plate, and the second air outlet is located on a side of the first air outlet away from the light exit area; and / or

[0020] The third air duct and the second heat sink are both partially located between the second section and the heat conducting member.

[0021] Optionally, the first air duct includes a first section and a second section, the first section extends along the light emitting area toward the direction of the fan and is located on one side of the third air duct, the end of the first section is bent and extended toward a side close to the third air duct to form the second section, and the light emitting component is at least partially disposed in the second section; wherein,

[0022] A first connecting air duct is formed on one side of the plurality of first heat sinks and the plurality of second heat sinks away from the first section, and at least one of the first air duct, the first flow space and the second flow space is connected to the first air outlet through the first connecting air duct; and / or,

[0023] A second connecting air duct is formed on one side of the plurality of first heat sinks and the plurality of second heat sinks close to the first section, and at least one of the first flow space and the second flow space is connected to the first air outlet through the second connecting air duct.

[0024] Optionally, when the skin treatment device includes the first connecting air duct, the first section, the second section and the first connecting air duct are connected in sequence, the first section and the first connecting air duct are both located on the side of the second section close to the fan, an end of the first section close to the fan is connected to the fan, and the third air duct is at least partially located between the first section and the first connecting air duct.

[0025] Optionally, the third air duct and the second section are located on the same side of the heat conductor; wherein, in the plane where the heat conductor is located, the orthographic projection of the third air duct and the orthographic projection of the second section are at least partially located within the orthographic projection of the second air duct, and the orthographic projection of the third air duct and the orthographic projection of the second section are at least partially located within the orthographic projection of the first heat sink; and / or

[0026] The third air duct is located on a side of the second section facing the fan.

[0027] Optionally, the light emitting assembly includes a lamp tube and a reflective component, and the reflective component includes an arc-shaped portion arranged around the lamp tube;

[0028] Among them, along the direction approaching the fan, the distances between the arc-shaped portion and the inner wall of the second section and the heat-conducting member are increased, so that the end of the third air duct facing away from the fan can extend to between the second section and the heat-conducting member, and the end of the second heat sink facing away from the fan can extend to between the second section and the heat-conducting member.

[0029] Optionally, when the skin treatment device includes the first connecting air duct, the first connecting air duct is configured as a confluence section formed at one end of the first air duct on the flow path close to the first air outlet, the first flow space is connected with the confluence section on a side close to the confluence section, and the first flow space is connected with the second air duct on a side away from the confluence section.

[0030] Optionally, along a direction approaching the confluence section, a cross-sectional area of ​​at least a portion of the first flow space gradually increases; and / or

[0031] The inner wall of the third air duct comprises a first bottom wall opposite to the heat conducting member, and one end of the first bottom wall close to the converging section is inclined in a direction away from the heat conducting member.

[0032] Optionally, the heat conducting component is a temperature averaging plate, which separates the second air duct and the third air duct in the outer shell, and one end of the temperature averaging plate away from the cold compress assembly is located at the air outlet of the fan to divert the air flowing out of the fan to the second air duct and the third air duct.

[0033] Optionally, the air outlet of the fan is offset toward a side of the heat conducting member close to the third air duct;

[0034] The inner wall of the third air duct includes a first bottom wall opposite to the heat conductor, and the first bottom wall is also provided with a guide structure, and the guide structure is at least partially located on the side of the second heat sink close to the fan, so that the guide structure can guide the air flowing from the fan to the third air duct to the second heat sink.

[0035] Optionally, one end of the first heat sink and / or the second heat sink in the length direction faces the air outlet of the fan.

[0036] Optionally, the heat dissipation assembly further includes a heat dissipation bracket, which is disposed in the shell, and the heat dissipation bracket or the heat dissipation bracket and the shell form at least one of the first air duct, the second air duct and the third air duct.

[0037] Optionally, the heat dissipation bracket includes:

[0038] A first bracket, wherein the first bracket is arranged on a side of the fan facing the light output component, the heat conducting member is covered on the first bracket, and the third air duct is formed between the first bracket and the heat conducting member;

[0039] The second bracket is arranged on a side of the heat conducting member facing away from the first bracket, and the second air duct is formed between the second bracket and the heat conducting member.

[0040] Optionally, the heat dissipation bracket further includes a third bracket, wherein the third bracket is installed on a side of the first bracket away from the heat conducting element, and the third bracket and the first bracket form the first air duct.

[0041] Optionally, the skin treatment device is a hair removal device or a skin rejuvenation device.

[0042] In the embodiment of the present application, the fan can dissipate heat for the light emitting component through the first air duct, and can also dissipate heat for the cold compress component through the first heat sink in the second air duct and the second heat sink in the third air duct; in this way, a plurality of first heat sinks and a plurality of second heat sinks (hereinafter collectively referred to as heat sinks) are respectively arranged on both sides of the heat conductor to dissipate heat for the cold compress component, and the first heat sink and the second heat sink are both extended along the light emitting area toward the direction of the fan, so that the extension direction thereof is consistent with the air outlet direction or the air inlet direction of the fan, so that the wind can flow from the heat sink to the fan or from the fan to the heat sink relatively smoothly, thereby providing heat dissipation efficiency for the cold compress component and the skin treatment device. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] The technical solution and beneficial effects of the present application will be made apparent by describing in detail the specific implementation methods of the present application in conjunction with the accompanying drawings.

[0044] Figure 1 This is a schematic diagram of the structure of a skin treatment device provided in an embodiment of the present application.

[0045] Figure 2 for Figure 1 A cross-sectional view of the skin treatment device along the AA direction Figure 1 .

[0046] Figure 3 for Figure 1 The skin treatment device is shown in a cross-sectional view along direction BB.

[0047] Figure 4 for Figure 1 A schematic structural diagram of the skin treatment device shown in a second perspective.

[0048] Figure 5 for Figure 1 A schematic structural diagram of the skin treatment device shown in a third viewing angle.

[0049] Figure 6 for Figure 5 The skin treatment device is shown in a cross-sectional view along the CC direction.

[0050] Figure 7 for Figure 1 A cross-sectional view of the skin treatment device along the AA direction Figure 2 .

[0051] Figure 8 for Figure 1 A schematic structural diagram of a heat dissipation bracket of a skin treatment device is shown.

[0052] Fig. 9 for Figure 8 Exploded view of the heat sink bracket shown Figure 1 .

[0053] Fig.10 for Figure 8 Exploded view of the heat sink bracket shown Figure 2 .

[0054] The numbers in the figure are:

[0055] 100. Shell;

[0056] 11. Light outlet area; 12. First air outlet; 13. Second air outlet; 14. Air duct side panel; 15. Tail panel; 16. Panel;

[0057] 200, light output component;

[0058] 21. lamp tube; 22. reflective component;

[0059] 300, cold compress component;

[0060] 31. first light guide component; 32. cooling sheet;

[0061] 400, heat dissipation component;

[0062] 41. fan; 42. heat-conducting member; 43. first heat sink; 44. second heat sink;

[0063] 500, heat dissipation bracket;

[0064] 51, first air duct; 511, first connecting air duct; 512, first section; 513, second section; 52, second air duct; 53, third air duct; 531, first flow space; 532, second flow space; 54, first bracket; 541, first bottom wall; 542, flow guide structure; 543, second bottom wall; 544, second connecting air duct; 55, second bracket; 56, third bracket;

[0065] 600. Circuit board. DETAILED DESCRIPTION

[0066] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements with the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and cannot be understood as limiting the present application.

[0067] It should be noted that, in this document, relational terms such as first and second, etc. are merely used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations.

[0068] In addition, the "plurality" in the embodiments of the present application refers to two or more than two. In view of this, in the embodiments of the present application, "plurality" can also be understood as "at least two". "At least one" can be understood as one or more, for example, one, two or more. For example, including at least one means including one, two or more, and there is no limit on which ones are included. For example, including at least one of A, B and C, then A, B, C, A and B, A and C, B and C, or A, B and C can be included.

[0069] An embodiment of the present application provides a skin treatment device, which may be a hair removal device or a skin rejuvenation device, etc. Of course, the skin treatment device may also be any other device used to treat the skin, and the embodiment of the present application does not limit this.

[0070] Please refer to Figure 1 and Figure 2 , Figure 1 This is a schematic diagram of the structure of the skin treatment device provided in an embodiment of the present application. Figure 2 for Figure 1 A cross-sectional view of the skin treatment device along the AA direction Figure 1The skin treatment device includes a housing 100, a light emitting component 200, a cold compress component 300 and a heat dissipation component 400. The light emitting component 200 is disposed in the housing 100 and is used to generate light to be emitted to the skin to be treated. The cold compress component 300 is disposed in the housing 100 and is used to apply a cold compress to the skin to be treated to reduce or even eliminate the pain or heat sensation generated during hair removal or skin rejuvenation. The heat dissipation component 400 is disposed in the housing 100 to dissipate heat from the light emitting component 200 and the cold compress component 300.

[0071] The above is an overall description of the skin treatment device in the embodiment of the present application. The following is an example description in combination with the light output structure of the skin treatment device.

[0072] The housing 100 is provided with a light emitting area 11. The light emitting assembly 200 faces the light emitting area 11 to generate light emitted from the light emitting area 11 to the skin to be treated. The cold compress assembly 300 can be arranged at the light emitting area 11 to apply cold compress to the skin to be treated.

[0073] Exemplarily, the light exit area 11 may be an opening structure such as a light exit port or a light exit hole provided on the housing 100. Optionally, the light exit area 11 may also be formed by some light-transmitting areas on the housing 100, which is not limited in the embodiment of the present application.

[0074] It can be understood that, according to the different types of light generated by the light output component 200, the skin treatment device can be divided into different types. For example, the light output component 200 can be used to generate laser, which is a laser light source component, and the skin treatment device is a laser skin treatment device; for example, the light output component 200 can be used to generate IPL light (intense pulsed light), which is an IPL light source component (such as a xenon lamp component), and the skin treatment device is an intense pulsed light skin treatment device; for example, the light output component 200 can be an LED light source component.

[0075] In the present application, the light emitting component 200 is mainly used as an IPL light source component as an example for explanation. The light emitting principle of this type of skin treatment equipment is: the capacitor is connected to the power supply, and the transformer component boosts the voltage to charge the capacitor. When the capacitor is charged to a preset value and the controller receives a trigger signal, the electric energy in the capacitor is released, and the instantaneous voltage can reach several hundred volts, thereby stimulating the lamp to instantly release strong pulsed light, thereby completing a light emission.

[0076] The above are some examples of the light output component 200 in the embodiment of the present application. The following will continue to illustrate with examples in combination with the cold compress component 300 of the skin treatment device.

[0077] The cold compress component 300 is arranged at the light emitting area 11, which includes at least the following three meanings, namely, the cold compress component 300 is installed in the light emitting area 11, or the cold compress component 300 is arranged on the periphery of the light emitting area 11, or it is partially arranged in the light emitting area 11 and partially arranged on the periphery of the light emitting area 11, and the embodiments of the present application are not limited to this; it should be noted that, when the cold compress component 300 is installed in the light emitting area 11, the cold compress component 300 directly applies cold compress to the skin to be treated; when the cold compress component 300 is arranged on the periphery of the light emitting area 11, the cold compress component 300 first applies cold compress to the skin on the periphery of the skin to be treated, so as to transfer cold energy to the skin to be treated through the skin on the periphery, so as to achieve indirect cold compress to the skin to be treated.

[0078] For example, the cold compress assembly 300 may include a first light guide component 31 and a cooling sheet 32. The light exit area 11 is an opening structure such as a light exit port and a light exit hole, and the first light guide component 31 is arranged in the light exit area 11 to transmit the light emitted by the light exit assembly 200. The cooling sheet 32 ​​is thermally connected to the first light guide component 31. For example, the cooling sheet 32 ​​is directly attached to the first light guide component 31 or attached to the first light guide component 31 through a heat conductive medium such as thermal conductive silicone grease.

[0079] Furthermore, the first light guide component 31 can be cooled by the cooling sheet 32. The cooled first light guide component 31 is exposed from the light exit area 11 so as to come into contact with the skin. The first light guide component 31 can not only transmit the light of the light source to care for the user's skin, but also be cooled by the cooling sheet 32 ​​to provide a cold compress for the user.

[0080] Specifically, the cooling plate 32 is also called a semiconductor cooling plate. It uses the Peltier effect of semiconductor materials. When direct current passes through a couple formed by two different semiconductor materials in series, heat can be absorbed and released at both ends of the couple, thereby achieving the purpose of cooling.

[0081] The first light guiding component 31 may be made of sapphire or other light guiding materials, which is not limited in the embodiment of the present application.

[0082] In an optional embodiment, the cold compress assembly 300 may further include a cold compress (not shown in the figure) and a cooling sheet 32. The light exit area 11 is an open structure such as a light exit port and a light exit hole, and the cold compress is arranged on the open end surface of the light exit area 11. The cooling sheet 32 ​​is thermally connected to the cold compress; for example, the cooling sheet 32 ​​is directly attached to the cold compress or attached to the cold compress through a heat conductive medium such as thermal conductive silicone grease.

[0083] Furthermore, the cold compress can be cooled by the cooling sheet 32, and the cooled cold compress is exposed from the light emitting area 11 so as to contact the skin to provide a cold compress for the user.

[0084] For example, the cold compress may be a ring-shaped metal part arranged around the light emitting area 11 .

[0085] In another optional embodiment, the cold compress assembly 300 includes a cold compress member (not shown in the figure) having a flow cavity, a refrigerant medium (such as a refrigerant liquid or a refrigerant gas) that can flow in the flow cavity, and a driving device (such as a compressor, etc.) for driving the refrigerant medium to circulate, so that the cooling medium can be used to achieve the cold compress function of the cold compress member. The light exit area 11 is an open structure such as a light exit port and a light exit hole, and the cold compress member is arranged in a surrounding shape on the open end surface of the light exit area 11.

[0086] The above are some examples of the cold compress assembly 300 of the embodiment of the present application. The following will continue to illustrate the technical solution of the embodiment of the present application with examples in combination with the heat dissipation structure of the embodiment of the present application.

[0087] In some embodiments, the housing 100 may be provided with a first air vent 12 and a second air vent 13 to facilitate air convection between the inside and outside of the housing 100 , thereby dissipating heat from the cold compress assembly 300 and the heat dissipation assembly 400 inside the housing 100 .

[0088] Please combine Figure 2 and Figure 3 , Figure 3 for Figure 1 The cross-sectional view of the skin treatment device shown in the figure is along the BB direction. Exemplarily, the heat dissipation component 400 and / or the housing 100 are formed with a first air duct 51, a second air duct 52 and a third air duct 53. The heat dissipation component includes a fan 41, a heat conductive member 42, and a plurality of first heat sinks 43 and a plurality of second heat sinks 44 respectively arranged on both sides of the heat conductive member 42. The fan 41 is arranged on the side of the light emitting component 200 away from the light emitting area 11. One end of the heat conductive member 42 is thermally connected to the cold compress component 300, and the other end extends to the fan 41. The second air duct 52 and the third air duct 53 are respectively located on both sides of the heat conductive member 42, the first fan port of the fan 41 is connected to the second air duct 13, the second fan port of the fan 41 is respectively connected to the first air duct ends of the first air duct 51, the second air duct 52 and the third air duct 53, and the second air duct ends of the first air duct 51, the second air duct 52 and the third air duct 53 are all connected to the first air duct 12. Therefore, the first air outlet 12, the first air duct 51, the fan 41 and the second air outlet 13 form a first circulation flow path connected to the outside of the housing 100, the first air outlet 12, the second air duct 52, the fan 41 and the second air outlet 13 form a second circulation flow path connected to the outside of the housing 100, and the first air outlet 12, the third air duct 53, the fan 41 and the second air outlet 13 form a second circulation flow path connected to the outside of the housing 100. It should be noted that the three circulation flow paths connected to the outside of the housing 100 can be partially connected or independent of each other, and the embodiment of the present application does not limit this.

[0089] At this time, the light output component 200 is at least partially disposed in the first air duct 51, so that the fan 41 can drive air to flow through the first air duct 51, thereby dissipating heat for the light output component 200. The first heat sink 43 is at least partially disposed in the second air duct 52, and the second heat sink 44 is at least partially disposed in the third air duct 53, so that the fan 41 can drive air to flow through the second air duct 52 and the third air duct 53, thereby dissipating heat for the cold compress component 300 through the first heat sink 43, the second heat sink 44 and the heat conductive member 42.

[0090] In some embodiments, the first heat sink 43 and the second heat sink 44 both extend along the light exit area 11 toward the fan 41. Therefore, the fan 41 can drive the air between the first heat sink 43 and the fan 41 and between the second heat sink 44 and the fan 41 to flow in a straight line without turning, thereby making the air flow smoother to improve the heat dissipation effect.

[0091] For example, the first fan port of the fan 41 is the air inlet and the second fan port is the air outlet, so that the fan 41 is used to blow air into the second air duct 52 and the third air duct 53. At this time, if the extension directions of the first heat sink 43 and the second heat sink 44 are perpendicular to the direction of the wind flowing out of the fan 41, the wind flowing out of the fan 41 needs to turn 90° before it can flow through both sides of the thickness direction of the first heat sink 43 and both sides of the thickness direction of the second heat sink 44, which will cause the flow resistance of the wind flowing out of the fan 41 to be larger, thereby ultimately reducing the heat dissipation effect.

[0092] Similarly, when the fan 41 is used to draw air from the second air duct 52 and the third air duct 53, if the extension directions of the first heat sink 43 and the second heat sink 44 are perpendicular to the direction of the wind flowing out of the fan 41, the air at the first heat sink 43 and the second heat sink 44 also needs to turn 90° before flowing into the fan 41, which will result in a larger flow resistance of the wind drawn by the fan 41, and ultimately reduce the heat dissipation effect.

[0093] In the following, in order to facilitate the explanation of the technical solution of the present application, the first fan port of the fan 41 is the air inlet and the second fan port is the air outlet for explanation and illustration. However, it should be understood that, depending on actual needs, the first fan port of the fan 41 may also be the air outlet and the second fan port may be the air inlet, and the embodiments of the present application do not limit this.

[0094] In some embodiments, Figure 3As shown, a first flow space 531 is provided between the side of the second heat sink 44 facing away from the heat conductor 42 and the inner wall of the third air duct 53, and the third air duct 53 is connected to the first air outlet 12 through the first flow space 531, thereby preventing the accumulated heat on the side of the second heat sink 44 facing away from the heat conductor 42 from being unable to be discharged in time, thereby improving the heat dissipation effect in the third air duct 53.

[0095] In some embodiments, Figure 2 As shown, a second flow space 532 is provided between the side of the second heat sink 44 facing away from the fan 41 and the inner wall of the third air duct 53, and the third air duct is connected to the first air outlet 12 through the second flow space 532, thereby preventing the accumulated heat on the side of the second heat sink 44 facing away from the fan 41 from being unable to be discharged in time, thereby improving the heat dissipation effect in the third air duct 53.

[0096] It is understandable that only the first flow space 531 or only the second flow space 532 may be formed in the third air duct 53, or both the first flow space 531 and the second flow space 532 may be formed at the same time, which is not limited in the embodiment of the present application.

[0097] Furthermore, when the first flow space 531 and the second flow space 532 are simultaneously formed in the third air duct 53, not only can heat accumulation in the third air duct 53 be more comprehensively avoided, but the air in the third air duct 53 can also flow from multiple positions to the first air outlet 12, thereby increasing the air outlet of the third air duct 53 and further improving the heat dissipation effect.

[0098] In some embodiments, the first flow space 531 is connected to a side of the light output assembly 200 in the first air duct 51 close to the first air outlet 12 .

[0099] In some embodiments, the housing 100 includes an air duct side plate 14 located on a side of the heat conducting member 42 away from the third air duct 53. The second air duct 52 is located between the heat conducting member 42 and the air duct side plate 14. The first air outlet 12 is provided on the air duct side plate. Then, when the first air outlet 12 is the air outlet of the housing 100, the skin treatment device can only discharge air from the side where the air duct side plate 14 is located, so as to avoid the hot air from being easily blown to the user when the skin treatment device discharges air from multiple sides, thereby improving the user's use experience.

[0100] In some embodiments, the skin treatment device further includes a circuit board 600. The circuit board 600 is disposed in the housing 100 and is located on the side of the heat conducting member 42 away from the air duct side plate 14. The light output assembly 200 is located between the heat conducting member 42 and the circuit board 600 and is electrically connected to the circuit board 600.

[0101] Then, taking the example of the first air outlet 12, the heat conductor 42, the light output component 200 and the circuit board 600 being arranged in sequence from top to bottom, it means that part of the circuit board 600 extends to directly below the light output component 200, so that a single circuit board 600 can be made longer in the horizontal direction to install more electrical components, thereby reducing the cost of the skin treatment device by reducing the number of circuit boards 600 required.

[0102] In contrast, if the circuit board 600 is located on the side of the heat conductor 42 close to the first air outlet 12 (i.e., the upper side), it means that the circuit board 600 needs to be moved away from the first air outlet 12 to prevent the circuit board 600 from blocking the air outlet of the first air outlet 12. As a result, the single circuit board 600 is relatively short in the horizontal direction, and more circuit boards 600 can only be stacked in the vertical direction to meet the installation needs of all electrical components, which in turn increases the number of circuit boards 600 required for the skin treatment device, ultimately increasing the cost of the skin treatment device.

[0103] In some embodiments, the circuit board 600 is provided with electronic components, such as triggers, IGBTs, and energy storage capacitors, etc. At least some of the electronic components are located on the side of the circuit board 600 facing the light output component 200, so that the space above the circuit board 600 can be fully utilized.

[0104] In some embodiments, the housing 100 may further include a panel 16 disposed opposite to the air duct side plate 14. The panel 16 may be provided with buttons, indicator lights, etc. Thus, when the user operates from the side where the panel 16 is located, the skin treatment device discharges air from the side where the air duct side plate 14 is located, so as to prevent the hot air discharged from the skin treatment device from blowing onto the user. And because the circuit board 600 is also closer to the panel 16, the electrical connection between the buttons, indicator lights and the circuit board 600 is more convenient.

[0105] Please continue to refer to Figure 4 , Figure 4 for Figure 1 Schematic diagram of the structure of the skin treatment device from a second perspective. In some embodiments, the housing 100 may further include a tail plate 15 connected between the panel 16 and the air duct side plate 14. The air inlet of the housing 100 is the second air outlet 13, and the second air outlet 13 may be located at the air duct side plate 14 and / or the tail plate 15. Therefore, the circuit board 600 is located directly below the light output component 200 and is not likely to block the air inlet of the housing 100.

[0106] Exemplarily, the second air outlet 13 and the first air outlet 12 may both be located on the air duct side plate 14 , that is, the second air outlet 13 and the first air outlet 12 are both located on the same side of the housing 100 , and the second air outlet 13 is located on the side of the first air outlet 12 away from the light exit area 11 .

[0107] Optionally, the number of the second air outlets 13 may be multiple, some of the second air outlets 13 are located on the air duct side panels 14, and some of the second air outlets 13 are located on the tail panel 15. For example, the tail panel 15 may be located on the side of the housing 100 away from the light exit area 11, so that the fan 41 can simultaneously inhale air from the back and the side away from the light exit area 11 to increase the air intake, and ultimately improve the heat dissipation effect.

[0108] In some embodiments, Figure 3 As shown, a first connecting air duct 511 is formed on a side of the first air outlet end of the first air duct 51 away from the first air outlet end of the first air duct 51 in the length direction of the light output component 200, and at least one of the first air duct 51, the first flow space 531, and the second flow space 532 is connected to the first air outlet 12 through the first connecting air duct 511. Thus, heat accumulation in the first connecting air duct 511 can be avoided.

[0109] It can also be understood that when the first air duct 51 and the first flow space 531 are both connected to the first air outlet 12 through the first connecting air duct 511, the third air duct 53 and the first air duct 51 also form a Bernoulli structure at the connecting point, so that the wind in the air duct with a faster air flow rate in the third air duct 53 and the first air duct 51 brings the wind in the other air duct out of the housing 100, thereby improving the heat dissipation effect of the skin treatment device.

[0110] In some embodiments, a second connecting air duct 544 is formed on one side of the first air outlet end of the first air duct 51 near the length direction of the light output assembly by the plurality of first heat sinks 43 and the plurality of second heat sinks 44, and at least one of the first flow space 531 and the second flow space 532 is connected to the first air outlet 12 through the second connecting air duct 544. Thus, heat accumulation in the second connecting air duct 544 can be avoided.

[0111] Exemplarily, the first flow space 531 is connected to the second air duct 52 through the second air duct 544 on the side away from the first connecting air duct 511. Thus, the air on the side away from the confluence section in the third air duct 53 can be discharged sequentially through the second air duct 52 and the first air outlet 12 to avoid heat accumulation on the side away from the confluence section in the third air duct 53.

[0112] It can be seen that the two opposite sides of the third air duct 53 are connected to the first air duct 51 and the second air duct 52 respectively, which not only makes it difficult for heat to accumulate in various places in the third air duct 53, but also allows the third air duct 53 to discharge air from the side of the heat conductor 42 away from the circuit board 600, so that the circuit board 600 does not need to make an avoidance design for the air outlet of the third air duct 53, and ultimately allows the circuit board 600 to be made larger to install more electrical components.

[0113] Please combine Figure 3 , Figure 5 and Figure 6 , Figure 5 for Figure 1 A schematic diagram of the structure of the skin treatment device from a third viewing angle, Figure 6 for Figure 5 The skin treatment device is shown in a cross-sectional view along the CC direction. In some embodiments, the first air duct 51 includes a first section 512 and a second section 513. The first section 512 extends along the light emitting area 11 toward the fan and is located on one side of the third air duct 53. The end of the first section 512 is bent and extended toward a side close to the third air duct 53 to form a second section 513, and the light emitting assembly 200 is at least partially disposed in the second section 513.

[0114] In some embodiments, a first connecting air duct 511 is formed on one side of the plurality of first heat sinks 43 and the plurality of second heat sinks 44 away from the first section 512, and at least one of the first air duct 51, the first flow space 531, and the second flow space 532 is connected to the first air outlet 12 through the first connecting air duct 511. Thus, it is possible to avoid heat accumulation at the first connecting air duct 511 in at least one of the first air duct 51, the first flow space 531, and the second flow space 532. It is also understandable that when the first air duct 51 and the first flow space 531 are both connected to the first air outlet 12 through the first connecting air duct 511, the third air duct 53 and the first air duct 51 also form a Bernoulli structure at the connecting point, so that the wind in one of the third air duct 53 and the first air duct 51 with a faster air flow rate brings the wind in the other air duct out of the housing 100, thereby improving the heat dissipation effect of the skin treatment device.

[0115] In some embodiments, a second connecting air duct 544 is formed on one side of the plurality of first heat sinks 43 and the plurality of second heat sinks 44 close to the first section 512, and at least one of the first flow space 531 and the second flow space 532 is connected to the first air outlet 12 through the second connecting air duct 544. Thus, heat accumulation in at least one of the first flow space 531 and the second flow space 532 at the second connecting air duct 544 can be avoided.

[0116] The above is an illustrative description of some ways in which the third air duct 53 is connected to the first air outlet 12 in the embodiment of the present application.

[0117] In some embodiments, the first section 512, the second section 513 and the first connecting air duct 511 are connected in sequence. The first section 512 and the first connecting air duct 511 are both located on the side of the second section 513 close to the fan 41. One end of the first section 512 close to the fan 41 is connected to the fan 41 to form a first air outlet end of the first air duct 51, and the third air duct 53 is at least partially located between the first section 512 and the first connecting air duct 511.

[0118] Then, it can also be understood that the first air duct 51 is connected to the first air outlet 12 after surrounding the third air duct 53 half a circle, so the third air duct 53 is shorter than the first air duct 51, so that the flow rate of the wind in the third air duct 53 is greater than the flow rate of the wind in the first air duct 51, thereby forming a Bernoulli structure at the first connecting air duct 511, so that the wind in the third air duct 53 accelerates the discharge of the wind in the first air duct 51, thereby avoiding heat accumulation at the confluence section of the first air duct 51.

[0119] In some embodiments, the inner wall of the first connecting air duct 511 includes a second bottom wall 543. The end of the second bottom wall 543 close to the fan 41 is inclined toward the first air outlet 12, so that when the wind in the second section 513 flows toward the first connecting air duct 511, it can be guided by the second bottom wall 543 to flow to the first air outlet 12 more smoothly for discharge.

[0120] Please continue to refer to Figure 7 , Figure 7 for Figure 1 A cross-sectional view of the skin treatment device along the AA direction Figure 2 In some embodiments, the third air duct 53 and the second section 513 are located on the same side of the heat conductor 42. In the plane where the heat conductor 42 is located, the orthographic projection of the third air duct 53 and the orthographic projection of the second section 513 are at least partially located within the orthographic projection of the second air duct 52, and the orthographic projection of the third air duct 53 and the orthographic projection of the second section 513 are at least partially located within the orthographic projection of the first heat sink 43.

[0121] Then, in combination with the light output component 200 being at least partially disposed in the second section 513, on the one hand, the second air duct 52 can be understood to extend at least to the upper side of the light output component 200, so that the second air duct 52 is longer and closer to the cold compress component 300, so that the wind flowing out of the fan 41 can be directly blown to the end of the heat conductor 42 close to the cold compress component 300 to improve the heat dissipation effect. On the other hand, the first heat sink 43 can also be understood to extend at least to the upper side of the light output component 200, so that the first heat sink 43 is longer, so that the contact area between the first heat sink 43 and the air can be increased to improve the heat dissipation effect, and the first heat sink 43 can be closer to the cold compress component 300 to improve the heat dissipation effect.

[0122] In some embodiments, the third air duct 53 is located on the side of the second section 513 facing the fan 41 , so that the wind flowing out of the fan 41 can be directly blown to the third air duct 53 to improve the heat dissipation effect of the fan 41 on the second heat sink 44 .

[0123] In some embodiments, the third air duct 53 and the second heat sink 44 are both partially located between the second section 513 and the heat conducting member 42 .

[0124] Then, on the one hand, compared with the third air duct 53 located on the side of the second section 513 facing the fan 41, the third air duct 53 in the embodiment of the present application can be longer and closer to the cold compress assembly 300, so that the wind flowing out of the fan 41 can be directly blown to the end of the heat conductor 42 close to the cold compress assembly 300 to improve the heat dissipation effect. On the other hand, compared with the second heat sink 44 located on the side of the second section 513 facing the fan 41, the second heat sink 44 in the embodiment of the present application is longer, so that the contact area between the second heat sink 44 and the air can be increased to improve the heat dissipation effect, and the second heat sink 44 can be closer to the cold compress assembly 300 to improve the heat dissipation effect.

[0125] Exemplarily, the light emitting assembly 200 includes a lamp tube 21 and a reflective component 22, and the reflective component 22 includes an arc portion arranged around the lamp tube 21. In the direction close to the fan 41, the distance between the arc portion and the inner wall of the second section 513 and the heat conducting member 42 is increased, so that the end of the third air duct 53 away from the fan 41 extends to between the second section 513 and the heat conducting member 42, and the end of the second heat sink 44 away from the fan 41 extends to between the second section 513 and the heat conducting member 42.

[0126] Then, continuing with the example of the temperature equalizing plate being located on the upper side of the light emitting component 200, the embodiment of the present application can make full use of the space above one end of the arc portion close to the fan 41 for avoidance, so as to set the third air duct 53 and the second heat sink 44, so that the skin treatment device has the advantage of a compact structure on the basis of good heat dissipation effect.

[0127] In some embodiments, Figure 3 As shown, the first connecting air duct 511 is configured as a confluence section formed at one end of the first air duct 51 on the flow path close to the first air outlet 12. The first flow space 531 is connected to the confluence section at a side close to the confluence section. The first flow space 531 is connected to the second air duct 52 at a side away from the confluence section. For example, the first flow space 531 is connected to the second air duct 52 at a side away from the confluence section through the above-mentioned second connecting air duct 544. Thus, heat accumulation on both sides of the first flow space 531 can be avoided.

[0128] In some embodiments, the cross-sectional area of ​​at least a portion of the first flow space 531 gradually increases in a direction approaching the confluence section, thereby forming a diffuser structure toward the confluence section to increase the flow rate of air flowing from the first flow space 531 toward the confluence section, thereby improving the heat dissipation effect of the skin treatment device.

[0129] In some embodiments, the inner wall of the third air duct 53 includes a first bottom wall 541 opposite to the heat conducting member 42. One end of the first bottom wall 541 close to the converging section is tilted away from the heat conducting member 42. Further, when the wind at the second heat sink 44 flows toward the first bottom wall 541, it can flow smoothly toward the converging section under the guidance of the first bottom wall 541.

[0130] like Figure 7 As shown, in some embodiments, one end of the second heat sink 44 in the length direction faces the air outlet of the fan 41. Therefore, the wind flowing out of the fan 41 can directly blow to the two side surfaces of the first heat sink 43 along the thickness direction, thereby improving the heat dissipation effect of the fan 41 on the first heat sink 43. Then, the air between the adjacent second heat sinks 44 can flow to the first flow space 531 and smoothly flow to the confluence section under the guidance of the first bottom wall 541.

[0131] In some embodiments, the inner wall of the third air duct 53 includes a first bottom wall 541 opposite to the heat-conducting member 42. The first bottom wall 541 is further provided with a guide structure 542. The guide structure 542 is at least partially located on a side of the second heat sink 44 close to the fan 41, so that the guide structure 542 can guide the air flowing from the fan 41 to the third air duct 53 to the second heat sink 44, thereby improving the heat dissipation effect of the fan 41 on the heat-conducting member 42 and the cold compress assembly 300.

[0132] In some embodiments, the air outlet of the fan 41 may be offset toward a side of the heat transfer member 42 close to the third air duct 53 .

[0133] It can be understood that, continuing with the example of the heat conductor 42 being located below the light output component 200, with the heat conductor 42 being the dividing line, since the light output component 200 is larger, the space inside the skin treatment device below the heat conductor 42 and behind the light output component 200 will be larger. At this time, biasing the fan 41 toward the side of the heat conductor 42 close to the third air duct 53 (i.e., biasing downward) can reasonably utilize the internal space of the skin treatment device, so as to facilitate the miniaturized design of the skin treatment device.

[0134] On this basis, the air outlet of the fan 41 is correspondingly offset toward the side of the heat conductor 42 close to the third air duct 53. At this time, with the guidance of the guide structure 542, the wind flowing out of the fan 41 can first flow to the second heat sink 44, so as to avoid the wind flowing out of the fan 41 directly flowing into the confluence section from the first flow space 531 without passing through the second heat sink 44, thereby improving the heat dissipation effect of the heat conductor 42 and the cold compress assembly 300.

[0135] In some embodiments, the heat conducting member 42 is a temperature averaging plate. The temperature averaging plate is separated into a second air duct 52 and a third air duct 53 in the housing 100. One end of the temperature averaging plate away from the cold compress assembly 300 is located at the air outlet of the fan 41 to divert the wind flowing out of the fan 41 to the second air duct 52 and the third air duct 53. Thus, by diverting the wind flowing out of the fan 41 to the second air duct 52 and the third air duct 53 through the heat conducting member 42, the contact area between the heat conducting member 42 and the wind flowing out of the fan 41 can be increased, thereby improving the heat dissipation effect of the fan 41 on the heat conducting member 42.

[0136] In some embodiments, one end of the first heat sink 43 in the length direction faces the air outlet of the fan 41. Therefore, the wind flowing out of the fan 41 can directly blow to the two side surfaces of the first heat sink 43 along the thickness direction, thereby improving the heat dissipation effect of the fan 41 on the first heat sink 43.

[0137] Next, the technical solution of the embodiment of the present application will be described with examples in combination with the formation methods of the first air duct 51 , the second air duct 52 and the third air duct 53 .

[0138] Please continue to refer to Figure 8 , Figure 8 for Figure 1 The heat dissipation component 400 further includes a heat dissipation bracket 500. The heat dissipation bracket 500 is disposed in the housing 100, and the heat dissipation bracket 500 or the heat dissipation bracket 500 and the housing 100 form at least one of the first air duct 51, the second air duct 52, and the third air duct 53. Therefore, compared with directly forming the first air duct 51, the second air duct 52, and the third air duct 53 by the housing 100, forming at least part of the air duct by the heat dissipation bracket 500 can reduce the difficulty of forming the corresponding air duct.

[0139] For example, please continue to refer to Fig. 9 , Fig. 9 for Figure 8 Exploded view of the heat sink bracket shown Figure 1The heat dissipation bracket 500 may include a first bracket 54 and a second bracket 55. The first bracket 54 is disposed on the side of the fan 41 facing the light output assembly 200. The heat conducting member 42 is covered on the first bracket 54, and a third air duct 53 is formed between the first bracket 54 and the heat conducting member 42. The second bracket 55 is disposed on the side of the heat conducting member 42 away from the first bracket 54. A second air duct 52 is formed between the second bracket 55 and the heat conducting member 42.

[0140] Thus, the heat conducting member 42 can be separated into the third air duct 53 and the second air duct 52, so that the winds of the third air duct 53 and the second air duct 52 dissipate heat from the heat conducting member 42 from different sides thereof, thereby improving the heat dissipation efficiency. On this basis, the third air duct 53 and the second air duct 52 also have the advantage of simple molding.

[0141] It can also be understood that, as mentioned above, the first flow space 531 is connected to the second air duct 52 at the side away from the confluence section. Then, a second connecting air duct 544 may be formed between the side of the heat conducting member 42 away from the confluence section and the inner wall of the first bracket 54, and the second connecting air duct 544 connects the second air duct 52 and the third air duct 53.

[0142] Please continue to refer to Fig.10 , Fig.10 for Figure 8 Exploded view of the heat sink bracket shown Figure 2 In some embodiments, the heat dissipation bracket 500 further includes a third bracket 56. The third bracket 56 is mounted on a side of the first bracket 54 away from the heat conducting member 42. The third bracket 56 and the first bracket 54 form a first air duct 51. Thus, the first air duct 51 has the advantage of being simple to shape.

[0143] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0144] The skin treatment device provided in the embodiment of the present application is introduced in detail above. Specific examples are used herein to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the method of the present application and its core idea. At the same time, for technicians in this field, according to the idea of ​​the present application, there will be changes in the specific implementation method and application scope. In summary, the content of this specification should not be understood as a limitation on the present application.

Claims

1. A skin treatment device, characterized in that: include: A housing, wherein the housing is provided with a light outlet area, a first air outlet, and a second air outlet; A light emitting component, which is disposed in the housing and is used to generate light that is emitted toward the skin to be treated through the light emitting area; A cold compress component, which is arranged at the light emitting area and is used for applying a cold compress to the skin to be treated; and A heat dissipation component, wherein the heat dissipation component is arranged in the shell, the heat dissipation component and / or the shell form a first air duct, a second air duct and a third air duct, the heat dissipation component includes a fan, a heat conductive member, and a plurality of first heat sinks and a plurality of second heat sinks respectively arranged on both sides of the heat conductive member, the fan is arranged on a side of the light emitting component away from the light emitting area, one end of the heat conductive member is thermally connected to the cold compress component, and the other end extends toward the fan; the second air duct and the third air duct are respectively located on both sides of the heat conductive member, the first fan port of the fan is connected to the second air port, the second fan port of the fan is respectively connected to the first air port ends of the first air duct, the second air duct and the third air duct, and the second air port ends of the first air duct, the second air duct and the third air duct are all connected to the first air port; the light emitting component is at least partially arranged in the first air duct; the first heat sink and the second heat sink both extend along the light emitting area toward the fan, the first heat sink is at least partially arranged in the second air duct, and the second heat sink is at least partially arranged in the third air duct.

2. The skin treatment device according to claim 1, characterized in that A first flow space is defined between a side of the second heat sink facing away from the heat conducting member and an inner wall of the third air duct, and the third air duct is connected to the first air outlet through the first flow space; and / or, A second flow space is defined between a side of the second heat sink facing away from the fan and an inner wall of the third air duct, and the third air duct is connected to the first air outlet through the second flow space.

3. The skin treatment device according to claim 2, characterized in that The first flow space is connected to a side of the light emitting component in the first air duct close to the first air outlet; and / or, The housing includes an air duct side plate located on a side of the heat conducting member away from the third air duct, the second air duct is located between the heat conducting member and the air duct side plate, and the first air outlet is provided on the air duct side plate.

4. The skin treatment device according to claim 3, characterized in that When the shell includes the air duct side plate, the skin treatment device also includes a circuit board, the circuit board is arranged in the shell, the circuit board is located on the side of the heat conductor away from the air duct side plate, and the light output component is located between the heat conductor and the circuit board and is electrically connected to the circuit board.

5. The skin treatment device according to claim 4, characterized in that The circuit board is provided with electronic components, wherein at least part of the electronic components are located on a side of the circuit board facing the light emitting assembly.

6. The skin treatment device according to claim 4, characterized in that The plurality of first heat sinks and the plurality of second heat sinks form a first connecting air duct on a side of the first air outlet end of the first air duct away from the length direction of the light output component, and at least one of the first air duct, the first flow space and the second flow space is connected to the first air outlet through the first connecting air duct; and / or The plurality of first heat sinks and the plurality of second heat sinks form a second connecting air duct on one side of the first air outlet end of the first air duct in the length direction of the light output component, and at least one of the first flow space and the second flow space is connected to the first air outlet through the second connecting air duct; and / or The second air outlet is arranged on the air duct side plate, and the second air outlet is located on a side of the first air outlet away from the light exit area.

7. The skin treatment device according to claim 4, characterized in that The first air duct includes a first section and a second section, the first section extends along the light emitting area toward the direction of the fan and is located on one side of the third air duct, the end of the first section is bent and extended toward the side close to the third air duct to form the second section, and the light emitting component is at least partially disposed in the second section; wherein, A first connecting air duct is formed on one side of the plurality of first heat sinks and the plurality of second heat sinks away from the first section, and at least one of the first air duct, the first flow space and the second flow space is connected to the first air outlet through the first connecting air duct; and / or, A second connecting air duct is formed on one side of the plurality of first heat sinks and the plurality of second heat sinks close to the first section, and at least one of the first flow space and the second flow space is connected to the first air outlet through the second connecting air duct.

8. The skin treatment device according to claim 7, characterized in that When the skin treatment device includes the first connecting air duct, the first section, the second section and the first connecting air duct are connected in sequence, the first section and the first connecting air duct are both located on the side of the second section close to the fan, an end of the first section close to the fan is connected to the fan, and the third air duct is at least partially located between the first section and the first connecting air duct.

9. The skin treatment device according to claim 8, characterized in that The third air duct and the second section are located on the same side of the heat conductor; wherein, in the plane where the heat conductor is located, the orthographic projection of the third air duct and the orthographic projection of the second section are at least partially located within the orthographic projection of the second air duct, and the orthographic projection of the third air duct and the orthographic projection of the second section are at least partially located within the orthographic projection of the first heat sink; and / or The third air duct is located on a side of the second section facing the fan; and / or The third air duct and the second heat sink are both partially located between the second section and the heat conducting member.

10. The skin treatment device according to claim 9, characterized in that The light emitting assembly comprises a lamp tube and a reflective component, wherein the reflective component comprises an arc-shaped portion arranged around the lamp tube; Among them, along the direction approaching the fan, the distances between the arc-shaped portion and the inner wall of the second section and the heat-conducting member are increased, so that the end of the third air duct facing away from the fan can extend to between the second section and the heat-conducting member, and the end of the second heat sink facing away from the fan can extend to between the second section and the heat-conducting member.

11. The skin treatment device according to any one of claims 6 to 10, characterized in that When the skin treatment device includes the first connecting air duct, the first connecting air duct is configured as a confluence section formed at one end of the first air duct on the flow path close to the first air outlet, the first flow space is connected with the confluence section on the side close to the confluence section, and the first flow space is connected with the second air duct on the side away from the confluence section.

12. The skin treatment device according to claim 11, characterized in that In a direction approaching the confluence section, the cross-sectional area of ​​at least a part of the first flow space gradually increases; and / or The inner wall of the third air duct comprises a first bottom wall opposite to the heat conducting member, and one end of the first bottom wall close to the converging section is inclined in a direction away from the heat conducting member.

13. The skin treatment device according to claim 11, characterized in that The heat conducting member is a temperature averaging plate, which separates the second air duct and the third air duct in the shell. One end of the temperature averaging plate away from the cold compress assembly is located at the air outlet of the fan to divert the air flowing out of the fan to the second air duct and the third air duct.

14. The skin treatment device according to claim 13, characterized in that The air outlet of the fan is offset toward a side of the heat conducting member close to the third air duct; The inner wall of the third air duct includes a first bottom wall opposite to the heat conductor, and the first bottom wall is also provided with a guide structure, and the guide structure is at least partially located on the side of the second heat sink close to the fan, so that the guide structure can guide the air flowing from the fan to the third air duct to the second heat sink.

15. The skin treatment device according to claim 11, characterized in that One end of the first heat sink and / or the second heat sink in the length direction faces the air outlet of the fan.

16. The skin treatment device according to any one of claims 1 to 10, characterized in that The heat dissipation assembly further includes a heat dissipation bracket, which is disposed in the housing. The heat dissipation bracket or the heat dissipation bracket and the housing form at least one of the first air duct, the second air duct and the third air duct.

17. The skin treatment device according to claim 16, characterized in that The heat dissipation bracket comprises: A first bracket, wherein the first bracket is arranged on a side of the fan facing the light output component, the heat conducting member is covered on the first bracket, and the third air duct is formed between the first bracket and the heat conducting member; The second bracket is arranged on a side of the heat conducting member facing away from the first bracket, and the second air duct is formed between the second bracket and the heat conducting member.

18. The skin treatment device according to claim 17, characterized in that The heat dissipation bracket further includes a third bracket, which is installed on a side of the first bracket away from the heat conducting member, and the third bracket and the first bracket form the first air duct.

19. The skin treatment device according to any one of claims 1 to 10, characterized in that The skin treatment device is a hair removal device or a skin rejuvenation device.

Images