Skin care equipment and accessory head thereof

Abstract

The skin care equipment further comprises a main machine, the main machine comprises a shell, a light emitting assembly and a cold compress assembly, the light emitting assembly and the cold compress assembly are arranged on the shell, the shell is provided with a first light outlet, the accessory head comprises a shell, a first light transmitting part and a heat conduction part, and the shell is detachably installed on the shell; the shell is provided with a second light outlet, the first light transmitting part is installed at the second light outlet to be used for transmitting light emitted from the first light outlet, the first light transmitting part is further used for exchanging heat with the cold compress assembly to conduct cold compress on the skin to be treated, and the heat conducting part is arranged on the inner surface of the shell, extends along the inner surface of the shell and comprises a heat conducting part. The heat conduction part is used for being attached to the cold compress piece when the shell is installed on the outer shell. In the application, the shell of the accessory head can be in heat conduction connection with the cold compress assembly of the host through the heat conduction piece, so that the temperature of the shell is prevented from being too high.

Description

Technical Field

[0001] This application belongs to the field of beauty equipment, and particularly relates to a skin care device and its accessory head. Background Technology

[0002] Hair removal devices and skin rejuvenation devices are common skin care equipment used in daily life. These devices mainly use IPL (intense pulsed light), laser, or LED light sources to irradiate the user's skin, thereby achieving effects such as hair removal or phototherapy skin rejuvenation.

[0003] In related technologies, different sizes of light-emitting apertures may be needed to treat different parts of the human body. For example, small light-emitting apertures may be needed for areas such as eyebrows and armpits, while larger light-emitting apertures are required for other parts such as the face and legs. Therefore, some skin care devices include a main unit and a detachable accessory head; when a large area needs to be treated, the accessory head is detached so that the larger light-emitting aperture on the main unit can directly treat the skin; when a small area needs to be treated, the accessory head is attached to the main unit to partially block the light-emitting aperture of the main unit, thereby reducing the light-emitting area.

[0004] However, during the operation of skin care devices, the accessory head can block some of the light from the main unit, causing it to heat up rapidly and thus affecting the user experience. Utility Model Content

[0005] This application provides a skin care device and its accessory head to improve the technical problem of excessively high temperature of the accessory head.

[0006] In a first aspect, embodiments of this application provide an accessory head for a skin care device. The skin care device includes a main unit and the accessory head. The main unit includes a housing, a light-emitting component, and a cooling component disposed on the housing. The housing has a first light-emitting port. The light-emitting component is used to generate light emitted from the first light-emitting port toward the skin to be treated. The cooling component includes a cooling element disposed at the first light-emitting port, and the cooling element is used to apply a cooling compress to the skin to be treated. The accessory head includes:

[0007] A housing for detachably mounting to the outer shell, the housing having a second light-emitting port, the second light-emitting port being configured to correspond to the first light-emitting port when the housing is mounted on the outer shell; the inner surface of the housing facing the outer surface of the outer shell when the housing is mounted on the outer shell;

[0008] A first light-transmitting element, mounted on a second light-emitting port, is used to transmit light emitted through the first light-emitting port; the first light-transmitting element is also used to thermally connect with or transfer heat in the airless manner to the cooling compress when the housing is mounted on the outer shell, for applying a cooling compress to the skin to be treated; and,

[0009] A heat-conducting element is disposed on the inner surface of the housing and extends along the inner surface of the housing. The heat-conducting element includes a heat-conducting portion for adhering to the cooling patch when the housing is mounted on the outer shell.

[0010] In some embodiments, the inner surface of the housing is provided with a receiving groove, and the second light outlet is located at the bottom of the receiving groove; the heat-conducting element is adapted to the receiving groove; and / or,

[0011] When the size of the second light-emitting port is smaller than the size of the first light-emitting port, and when the cooling component is a third light-transmitting component disposed within the first light-emitting port, the heat-conducting portion is used to fit against the light-emitting surface of the third light-transmitting component when the housing is mounted on the outer shell, and is also used to cover a portion of the first light-emitting port; and / or,

[0012] The thermally conductive component is a thermally conductive flexible material component; and / or,

[0013] The heat-conducting component is integrally formed into a thin, extended sheet structure.

[0014] In some embodiments, the housing includes:

[0015] A first top wall, wherein the first top wall is provided with a second light outlet; and,

[0016] A first sidewall, connected to the first top wall, forms an accommodating space between the first sidewall and the first top wall to accommodate one end of the outer casing where the first light-emitting port is located; and...

[0017] The heat-conducting component further includes a heat-dissipating portion disposed on the inner surface of the first top wall for contact with the cooling component. The heat-dissipating portion has a ring-shaped structure, with its inner edge connected to the heat-conducting portion. The heat-dissipating portion is disposed on the inner surface of the first side wall and extends along the inner surface of the first side wall; and / or,

[0018] The receiving groove is formed on the inner surface of the accommodating space.

[0019] In some embodiments, when the heat-conducting component includes the heat dissipation portion, the heat dissipation portion includes a first portion and a second portion, both the first portion and the second portion are inclinedly connected to the heat-conducting portion, and the angle between the first portion and the heat-conducting portion is smaller than the angle between the second portion and the heat-conducting portion; wherein, the heat-conducting component is further provided with a clearance hole, the clearance hole being at least partially located in the first portion, or the clearance hole being disposed adjacent to the first portion.

[0020] In some embodiments, the heat dissipation portion includes a second sidewall, a third sidewall, a fourth sidewall, and a fifth sidewall, wherein the second sidewall, the third sidewall, the fourth sidewall, and the fifth sidewall are connected around the outer periphery of the heat-conducting portion and are connected end to end in sequence;

[0021] Wherein, the angle between the second sidewall and the heat-conducting part is smaller than the angle between the fourth sidewall and the heat-conducting part;

[0022] The avoidance hole is provided at the connection between the second sidewall, the third sidewall and the heat-conducting part; and / or, the avoidance hole is provided at the connection between the second sidewall, the fifth sidewall and the heat-conducting part.

[0023] In some embodiments, when the heat-conducting component includes the heat dissipation portion, the heat dissipation portion includes a first portion and a second portion, both the first portion and the second portion are inclinedly connected to the heat-conducting portion, and the angle between the first portion and the heat-conducting portion is smaller than the angle between the second portion and the top wall;

[0024] The wall thickness of the first part is less than that of the second part.

[0025] In some embodiments, one of the housing and the heat-conducting component is provided with a first positioning post, and the other is provided with a first positioning hole. The first positioning post is engaged with the first positioning hole, and the first positioning post is located at the connection between the first top wall and the first side wall; and / or,

[0026] The first sidewall includes a first annular wall and a second annular wall. The first annular wall is connected to the first top wall around it. The second annular wall is connected to the end of the first annular wall away from the first top wall. The connection between the second annular wall and the first annular wall forms a stepped surface facing the first top wall. The outer edge of the heat-conducting element abuts against the stepped surface; and / or,

[0027] The first sidewall is provided with a first snap-fit ​​structure, which is used to snap onto the outer shell.

[0028] In some embodiments, when the size of the second light-emitting port is smaller than the size of the first light-emitting port, and the cooling device is a third light-transmitting device disposed within the first light-emitting port, the auxiliary head further includes an isolation device, the isolation device being disposed around the first light-transmitting device, and the isolation device being a flexible material component;

[0029] When the housing is installed on the outer shell, the first light-transmitting element and the third light-transmitting element are disposed opposite to each other, and the insulating element abuts against the third light-transmitting element to form a sealed space between the first light-transmitting element and the third light-transmitting element.

[0030] In some embodiments, the insulating element is a thermally insulating flexible material, or the insulating element is a thermally conductive flexible material; and / or,

[0031] The isolation component includes a main isolation portion and an inner flange disposed at one end of the main isolation portion. The main isolation portion is disposed around the first light-transmitting component. The thickness of the inner flange is less than or equal to 0.36 mm. The inner flange is used to clamp between the first light-transmitting component and the third light-transmitting component when the housing is installed on the outer shell.

[0032] In some embodiments, the host unit further includes a photoelectric sensor assembly, and the auxiliary head further includes a second light-transmitting element mounted on the housing.

[0033] When the housing is installed on the outer shell, the second light-transmitting element and the photoelectric sensor assembly are correspondingly arranged to allow the photoelectric sensor assembly to transmit light signals.

[0034] In some embodiments, one of the housing and the heat-conducting component is provided with a positioning groove, and the other is provided with a positioning rib, the positioning rib being engaged with the positioning groove; wherein, the positioning rib is arranged around the second light outlet, and the second light-transmitting component is located between the two ends of the positioning rib; and / or,

[0035] One of the housing and the second light-transmitting element is provided with a second positioning post, and the other is provided with a second positioning hole, wherein the second positioning post is engaged with the second positioning hole; and / or

[0036] The second light-transmitting element includes a through-hole portion and a mounting portion connected together, the through-hole portion being the housing, and the mounting portion abutting against the inner surface of the housing; and / or,

[0037] The first light-transmitting element is provided with a guide structure, which is used to guide the first light-transmitting element when it is inserted into the second light outlet.

[0038] The photoelectric sensor assembly is a color sensor assembly; and / or,

[0039] The bottom of the receiving groove on the inner surface of the housing is provided with a positioning rib located around the second light outlet. The heat-conducting component is an annular component. The inner periphery of the heat-conducting component abuts against the positioning rib, and the outer periphery of the heat-conducting component abuts against the peripheral wall of the receiving groove.

[0040] Secondly, embodiments of this application also provide a skin care device, comprising:

[0041] The main unit includes a housing, a light-emitting component, and a cooling component. The outer surface of the housing has a working surface. The light-emitting component generates light that is directed from the working surface onto the skin to be treated. The cooling component is disposed on the working surface for applying a cooling compress to the skin to be treated.

[0042] As mentioned above, the subsidiary head.

[0043] In some embodiments, when the housing is mounted on the outer casing, the housing obstructs a portion of the first light-emitting port; and / or,

[0044] The skin care device is a hair removal device or a skin rejuvenation device; and / or,

[0045] The size of the second light outlet is smaller than the size of the first light outlet. The cooling device is a third light-transmitting element disposed within the first light outlet. The first light-transmitting element and the third light-transmitting element are disposed opposite to each other. The first light-transmitting element and the third light-transmitting element are in surface contact to make the first light-transmitting element and the third light-transmitting element thermally connected. Alternatively, the distance between the first light-transmitting element and the third light-transmitting element is less than or equal to 0.3 mm to make the first light-transmitting element and the third light-transmitting element transfer heat through the air.

[0046] In this embodiment, on the one hand, the auxiliary head can exchange heat with the cooling compress component of the main unit through the first light-transmitting element, thereby applying a cooling compress to the skin to be treated; on the other hand, the auxiliary head can also be thermally connected to the cooling compress component of the main unit through a heat-conducting element, thereby cooling the shell of the auxiliary head, thus preventing the shell from overheating and affecting the user's experience. Attached Figure Description

[0047] The technical solution and its beneficial effects will become apparent from the following detailed description of specific embodiments of this application, in conjunction with the accompanying drawings.

[0048] Figure 1 This is a schematic diagram of the structure of the skin care device provided in the embodiment of this application.

[0049] Figure 2 for Figure 1 The skin care device shown is a cross-sectional view along the AA direction.

[0050] Figure 3 for Figure 1 A partial schematic diagram of the exploded view of the skin care device shown along the AA direction.

[0051] Figure 4 for Figure 3 The diagram shows the structure of the accessory head of the skin care device.

[0052] Figure 5 for Figure 4 Exploded view of the attached head shown Figure 1 .

[0053] Figure 6 for Figure 4 Exploded view of the attached head shown Figure 2 .

[0054] Figure 7 for Figure 4 The main view of the attached head is shown.

[0055] Figure 8 for Figure 7 The attached head is shown in a cross-sectional view along the BB direction.

[0056] Figure 9 for Figure 7 The attached head is shown in a cross-sectional view along the CC direction.

[0057] Figure 10 for Figure 1 A schematic diagram of the skin care device from another perspective.

[0058] Figure 11 for Figure 10 A partial sectional view of the skin care device shown along the DD direction.

[0059] Figure 12 for Figure 11 A magnified view of the Z-axis.

[0060] Figure 13 for Figure 11 Another structural diagram at point Z.

[0061] The labels in the diagram are as follows:

[0062] 100. Host computer;

[0063] 11. Housing; 112. First light outlet; 12. Light emission assembly; 13. Cooling assembly; 131. Third light-transmitting element; 131a. Cooling element; 132. Cooling element; 14. Photoelectric sensor assembly;

[0064] 200. Subordinate head;

[0065] 21. Housing; 211. First top wall; 2111. Second light outlet; 2112. Positioning rib; 2113. Second positioning post; 212. First side wall; 2121. Stepped surface; 2122. First annular wall; 2123. Second annular wall; 2124. First snap-fit ​​structure; 2125. First positioning post; 22. First light-transmitting element; 221. Guide structure; 222. Second light-emitting surface; 23. Heat-conducting element; 231. Heat-conducting part; 2311. Positioning groove; 2312. Pre-compression protrusion; 232. Heat dissipation part ; 2321, Second sidewall; 2321a, First part; 2322, Third sidewall; 2323, Fourth sidewall; 2323a, Second part; 2324, Fifth sidewall; 2325, Clearance hole; 2326, First positioning hole; 233, Inner perimeter; 234, Outer perimeter; 236, Clearance notch; 24, Second light-transmitting element; 241, Through-hole; 242, Mounting part; 2421, Second positioning hole; 25, Isolator; 251, Main isolation part; 252, Inner flange; 253, Outer flange. Detailed Implementation

[0066] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application. In addition, it should be understood that the specific embodiments described herein are only for illustration and explanation of this application and are not intended to limit this application. In this application, unless otherwise stated, directional terms such as "upper" and "lower" generally refer to the upper and lower positions of the equipment in actual use or operation, specifically the drawing directions in the accompanying drawings; while "inner" and "outer" refer to the outline of the equipment.

[0067] Furthermore, in the embodiments of this application, "multiple" refers to two or more. Therefore, in the embodiments of this application, "multiple" can also be understood as "at least two". "At least one" can be understood as one or more, such as one, two, or more. For example, including at least one means including one, two, or more, and is not limited to which ones are included. For example, including at least one of A, B, and C, then it could include A, B, C, A and B, A and C, B and C, or A and B and C.

[0068] This application provides a skin care device and its accessory head 200.

[0069] Please refer to Figure 1 , Figure 2 and Figure 3The skin care device includes a main unit 100 and an auxiliary head 200. The main unit 100 includes a housing 11, a light-emitting component 12, and a cooling component 13 disposed on the housing 11. The housing has a first light-emitting port 112. The light-emitting component 12 generates light that shines from the first light-emitting port 112 onto the skin to be treated. The cooling component 13 includes a cooling element 131a disposed at the first light-emitting port 112, which is used to apply a cooling compress to the skin to be treated. The auxiliary head 200 is used to be installed on the housing 11 of the main unit 100. In actual use, the user can choose to have the first light-emitting port 112 of the main unit 100 directly contact the skin to be treated, allowing the main unit 100 to provide skin care and a cooling compress, or to have the auxiliary head 200 attached to the main unit 100 contact the skin to be treated, allowing the main unit 100 to provide skin care and a cooling compress indirectly through the auxiliary head 200.

[0070] The technical solution of the embodiments of this application will now be described in conjunction with the structure of the subsidiary head 200.

[0071] Please continue to combine Figure 4 The auxiliary head 200 includes a housing 21, a first light-transmitting element 22, and a heat-conducting element 23.

[0072] The housing 21 is used to detachably mount the outer shell 11. The housing 21 is provided with a second light-emitting port 2111, which is configured to correspond to the first light-emitting port 112 when the housing 21 is mounted on the outer shell 11. The inner surface of the housing 21 is configured to face the outer surface of the outer shell 11 when the housing 21 is mounted on the outer shell 11.

[0073] The first light-transmitting element 22 is installed at the second light-emitting port 2111 to transmit light emitted through the first light-emitting port 112, so that the light generated by the light-emitting component 12 of the main unit 100 can pass sequentially through the first light-emitting port 112 and the second light-emitting port 2111 before being directed onto the skin to be treated. The first light-transmitting element 22 is also used to conduct heat to the cooling compress component 131a or to transfer heat in the air when the housing 21 is installed on the outer shell 11, so as to achieve heat exchange for applying a cooling compress to the skin to be treated.

[0074] A heat-conducting element 23 is disposed on the inner surface of the housing 21. The heat-conducting element 23 extends along the inner surface of the housing 21 and includes a heat-conducting portion 231, which is used to adhere to the cooling patch 131a when the housing 21 is mounted on the outer casing 11. Furthermore, the cooling patch 131a can exchange heat with the heat-conducting portion 231. Since the heat-conducting element 23 extends along the inner surface of the housing 21, it can conduct the cold energy of the cooling patch 131a to more areas of the inner surface of the housing 21, thereby achieving heat dissipation and cooling of the housing 21. This can prevent the temperature of the auxiliary head 200 (partially) from becoming too high and affecting the user experience.

[0075] It should also be noted that the first light-transmitting element 22 is also used for thermally conductive connection or heat transfer without air between the housing 21 and the cooling compress 131a when the housing 21 is mounted on the outer casing 11. In this way, the cold energy of the cooling compress 131a can be transferred to the first light-transmitting element 22, thus enabling cooling compresses to be applied even when the auxiliary head 200 is used.

[0076] Regarding heat transfer without air contact, it can be understood that when the housing 21 is installed on the outer shell 11, by making the distance between the first light-transmitting element 22 and the cooling compress element 131a less than a preset value, heat transfer between the first light-transmitting element 22 and the cooling compress element 131a can be achieved without air contact. That is, the first light-transmitting element 22 and the cooling compress element 131a can exchange heat through the air between them as a heat transfer medium. The preset value can be experimentally determined based on the temperature / area of ​​the cooling compress element 131a, etc., and this embodiment of the application does not limit it.

[0077] In some embodiments, the heat-conducting element 23 is adapted to the inner surface of the housing 21, thereby increasing the contact area between the heat-conducting element 23 and the inner surface of the housing 21, and improving the heat exchange efficiency between the heat-conducting element 23 and the housing 21.

[0078] For example, the inner surface of the housing 21 is provided with a receiving groove, and the second light outlet 2111 is located at the bottom of the receiving groove; the heat-conducting component 23 is adapted to the receiving groove. In this way, it is also convenient to fix the heat-conducting component 23.

[0079] It is understood that the heat-conducting component 23 may be in direct contact with the inner surface of the housing 21 to form a heat-conducting connection, or the heat-conducting component 23 may be provided with thermal grease or the like to form a heat-conducting connection with the inner surface of the housing 21. This application embodiment does not limit this.

[0080] In some embodiments, the heat-conducting element 23 is integrally formed as a thin, extended sheet structure. For example, the thickness of the heat-conducting element 23 is less than or equal to 3 mm, such as 2.8 mm, 2.5 mm, 2.3 mm, 2 mm, 1.8 mm, 1.6 mm, 1.5 mm, 1.4 mm, 1.2 mm, 1 mm, 0.8 mm, 0.6 mm, 0.5 mm, 0.4 mm, or 0.2 mm. Furthermore, by keeping the overall volume of the heat-conducting element 23 small, thus making the auxiliary head 200 thinner and lighter, the heat-conducting element 23 can adhere to a larger area of ​​the inner surface of the housing 21. Consequently, the cold energy of the cooling element 131a, after being transferred to the heat-conducting portion 231 of the heat-conducting element 23, can be transferred to a larger area of ​​the housing 21, thereby improving the heat dissipation effect on the housing 21 (or the auxiliary head 200).

[0081] In some embodiments, the heat-conducting element 23 is a flexible heat-conducting material. This allows the heat-conducting element 23 to better conform to the inner surface of the housing 21, thereby improving the heat exchange efficiency between the heat-conducting element 23 and the housing 21. Furthermore, when the housing 21 is installed onto the outer casing 11 of the main unit 100, if the heat-conducting element 23 is sandwiched between the inner surface of the housing 21 and the outer surface of the outer casing 11, the heat-conducting element 23 can also undergo adaptive deformation, thereby better conforming to the outer surface of the outer casing 11, further improving the heat exchange efficiency between the heat-conducting element 23 and the outer casing 11.

[0082] For example, the heat-conducting component 23 may include a silicone component, thereby utilizing the advantage of the good heat conduction effect of the thermally conductive silicone to quickly transfer the cold energy at the cooling component 131a to the housing 21 of the auxiliary head 200, so as to improve the cooling effect of the housing 21 of the auxiliary head 200.

[0083] The heat-conducting component 23 can be connected and fixed to the housing 21 by injection molding. For example, the heat-conducting component 23 and the housing 21 can be two-color injection molded. Of course, in some other embodiments, the heat-conducting component 23 can also be fixed to the housing 21 by means of bonding, snap-fitting, screwing, welding, etc., and this application embodiment does not limit this.

[0084] For example, combining Figure 9 In one embodiment, the bottom of the receiving groove is provided with a positioning rib 2112 located around the second light outlet 2111. The heat-conducting element 23 is an annular element, with its inner periphery 233 abutting against the positioning rib 2112 and its outer periphery 234 abutting against the peripheral wall of the receiving groove. This allows the heat-conducting element 23 to be fixed within the receiving groove. In particular, when the heat-conducting element 23 is a flexible element, its high coefficient of friction can be utilized to better fix the heat-conducting element 23.

[0085] It is also understood that the heat-conducting component 23 can also be a heat-conducting flexible material component such as a rubber component, and the heat-conducting component 23 can also be a heat spreader or other rigid heat-conducting material component. This application embodiment does not limit this.

[0086] When the size of the second light-emitting port 2111 is smaller than the size of the first light-emitting port 112, and when the cooling component 131a is a third light-transmitting component 131 disposed in the first light-emitting port 112, the heat-conducting part 231 is used to fit with the light-emitting surface of the third light-transmitting component 131 when the housing 21 is installed on the outer shell 11, so as to also cover part of the area of ​​the first light-emitting port 112.

[0087] Furthermore, based on the bonding of the heat-conducting part 231 with the third light-transmitting element 131, the heat-conducting part 231 can also be reused to block a portion of the first light-emitting port 112. The heat-conducting part 231 absorbs the light energy emitted from the blocked portion of the first light-emitting port 112. By utilizing the cooling effect of the third light-transmitting element 131 and the conduction effect of the heat-conducting part 23, the light energy can be more evenly distributed to the housing 21 so that it can be dissipated into the air. This achieves heat dissipation and cooling of the housing 21, thereby preventing the temperature of the auxiliary head 200 (partial) from becoming too high and affecting the user experience.

[0088] Specifically, the heat-conducting element 23 is disposed on the inner surface of the housing 21 and extends along the inner surface of the housing 21. The heat-conducting element 23 includes a heat-conducting portion 231, which is used to block part of the first light outlet 112 when the housing 21 is installed on the outer shell 11, and to fit with the cooling component 131a. In this way, the heat-conducting part 231 absorbs the light energy emitted from the blocked portion of the first light outlet 112 to prevent it from directly hitting other parts of the housing 21. After absorbing heat, the heat-conducting part 231 can exchange heat with the cooling component 131a and transfer the heat to other parts of the heat-conducting part 23 (such as the heat dissipation part 232 described below). Since the heat-conducting part 23 extends along the inner surface of the housing 21, it can conduct the light energy absorbed by the heat-conducting part to more areas of the inner surface of the housing 21. This allows the heat inside the housing 21 to be distributed more evenly to the housing 21 so that it can be dissipated into the air, thereby achieving heat dissipation and cooling of the housing 21. This also prevents the temperature of the auxiliary head 200 (partial) from becoming too high and affecting the user's experience.

[0089] Please continue to refer to this. Figure 4 , Figure 5 and Figure 6 In some embodiments, the housing 21 may include a first top wall 211 and a first side wall 212. The first top wall 211 is provided with a second light outlet 2111. The first side wall 212 is connected to the first top wall 211, and an accommodating space is formed between the first side wall 212 and the first top wall 211 to accommodate one end of the housing 11 where the first light outlet 112 is located.

[0090] Therefore, it can also be understood that the housing 21 of the auxiliary head 200 is covered at the end of the outer shell 11 of the main unit 100 where the first light outlet 112 is located. Thus, on the one hand, the first top wall 211 and the first side wall 212 can cooperate with the main unit 100 at the same time to increase the cooperation area between the auxiliary head 200 and the main unit 100, thereby improving the stability and reliability of the installation of the auxiliary head 200. On the other hand, the first side wall 212 can also block the gap between the first top wall 211 and the first light outlet 112, thereby reducing or even eliminating the light leakage between the first top wall 211 and the first light outlet 112, thereby improving the aesthetics and safety of the skin care device during operation.

[0091] It is understood that the inner surface of the accommodating space is the inner surface of the shell 21, and the accommodating groove described above can be formed on the inner surface of the accommodating space.

[0092] It should be noted that the first sidewall 212 can be a closed ring structure surrounding the first top wall 211, or it can have a gap along the circumference of the first top wall 211. This application embodiment does not limit this.

[0093] Correspondingly, the heat-conducting element 23 can be at least partially disposed on the inner surface of the first top wall 211, such as the heat-conducting part 231 disposed on the inner surface of the first top wall 211. Thus, when the auxiliary head 200 is installed on the main unit 100, the heat-conducting element 23 can contact the cooling element 131a at the first light outlet 112 of the main unit 100 to form a heat-conducting connection.

[0094] Specifically, the heat-conducting element 23 may be disposed only on the inner surface of the first top wall 211, or it may be disposed on the inner surface of the first top wall 211 and partially disposed in other areas of the housing 21. This application embodiment does not limit this.

[0095] For example, the heat-conducting element 23 can also be partially disposed on the first sidewall 212. It is understood that since the second light-emitting port 2111 of the auxiliary head 200 is disposed on the first top wall 211, the auxiliary head 200 mainly contacts the skin to be treated through the first top wall 211. Therefore, when the heat-conducting element 23 is partially disposed on the first top wall 211 and partially disposed on the first sidewall 212, the heat-conducting element 23 can quickly transfer some of the heat from the first top wall 211 to the first sidewall 212 to dissipate heat from the first top wall 211, thereby preventing the temperature of the first top wall 211 in contact with the skin to be treated from becoming too high. Furthermore, since the heat-conducting element 23 can more evenly distribute the heat from the housing 21 onto the first top wall 211 and the first sidewall 212, it can also improve the overall heat dissipation effect of the housing 21.

[0096] For example, the heat-conducting component 23 may further include a heat dissipation portion 232. The heat-conducting portion 231 is disposed on the inner surface of the first top wall 211 for contact with the cooling component 131a. The heat dissipation portion 232 is connected to the heat-conducting portion 231 and is disposed on the inner surface of the first side wall 212.

[0097] Understandably, during actual operation, the light emitted from the host 100 directly hitting the first top wall 211 would cause significant heat to be generated at the first top wall 211. In this situation, on one hand, the heat-conducting part 231 is sandwiched between the first top wall 211 and the cooling assembly 13 of the host 100, thus preventing the light emitted from the host 100 from directly hitting the first top wall 211, and / or, the heat-conducting part 231 can quickly and efficiently transfer the cold energy at the cooling assembly 131a to the first top wall 211, thereby reducing the temperature at the first top wall 211; on the other hand, the heat energy at the first top wall 211 can also be quickly and efficiently transferred to the first side wall 212 for heat dissipation through the heat-conducting part 231 and the heat dissipation part 232 in sequence.

[0098] In some embodiments, the heat-conducting part 231 can be an annular structure, and the heat dissipation part 232 can be an annular structure, with the inner edge of the heat dissipation part 232 connected to the heat-conducting part 231. The heat dissipation part 232 is disposed on the inner surface of the first sidewall 212 and extends along the inner surface of the first sidewall 212. Thus, by providing the heat dissipation part 232 only on one side relative to the circumferential direction of the heat-conducting part 231, the embodiments of this application can increase the area of ​​the heat-conducting part 231 by providing an annular (i.e., one full circle) heat dissipation part 232 on the outer periphery of the heat-conducting part 231, thereby improving the heat dissipation effect of the heat-conducting part 231.

[0099] Of course, in some other embodiments, the heat dissipation part 232 may be provided on one side of the heat conduction part 231 in the circumferential direction, and this application embodiment does not limit this.

[0100] In some embodiments, the first sidewall 212 and the first topwall 211 may be vertically connected; of course, the first sidewall 212 and the first topwall 211 may also be obliquely connected, and this application embodiment does not limit this.

[0101] For example, at least a portion of the first sidewall 212 may be tilted outward so that the cross-sectional area of ​​the accommodating space is increased in the direction away from the first top wall 211, thereby facilitating the placement of the host 100 into the accommodating space.

[0102] In some embodiments, the heat dissipation portion 232 may include a first portion 2321a and a second portion 2323a. Both the first portion 2321a and the second portion 2323a are inclinedly connected to the heat-conducting portion 231, and the angle between the first portion 2321a and the heat-conducting portion 231 is smaller than the angle between the second portion 2323a and the heat-conducting portion 231. This can be simply understood as the first portion 2321a and the second portion 2323a being inclinedly connected to the heat-conducting portion 231, and with the heat-conducting portion 231 as the reference plane, the slope of the first portion 2321a is greater than that of the second portion 2323a.

[0103] For example, the heat dissipation part 232 includes a second sidewall 2321, a third sidewall 2322, a fourth sidewall 2323, and a fifth sidewall 2324. The second sidewall 2321, the third sidewall 2322, the fourth sidewall 2323, and the fifth sidewall 2324 are connected around the outer periphery of the heat-conducting part 231 and are connected sequentially end to end. The angle between the second sidewall 2321 and the heat-conducting part 231 is smaller than the angle between the fourth sidewall 2323 and the heat-conducting part 231; thus, the second sidewall 2321 can serve as the first part 2321a, and the fourth sidewall 2323 can serve as the second part 2323a.

[0104] In some embodiments, the heat-conducting element 23 is further provided with a clearance hole 2325, which is at least partially located in the first portion 2321a, or the clearance hole 2325 is disposed adjacent to the first portion 2321a.

[0105] It is understandable that when the heat-conducting component 23 is adapted to the inner surface of the outer casing 11, it means that the area of ​​the first sidewall 212 with the first part 2321a has a larger slope than the area of ​​the first sidewall 212 with the second part 2323a, resulting in a smaller space in the area with the first part 2321a. Therefore, in the area with a smaller space inside the casing 21 (i.e., at the first part 2321a), the heat-conducting component 23 can be provided with a clearance hole 2325 to avoid the outer casing 11 of the host 100, so that the auxiliary head 200 can make full use of the space inside the casing 21 to set a larger area heat-conducting component 23 to improve the heat dissipation effect, while avoiding the interference of an excessively large heat-conducting component 23 with the placement of the host 100 into the casing 21.

[0106] For example, a clearance hole 2325 may be provided at the connection between the second sidewall 2321, the third sidewall 2322 and the heat-conducting part 231; and / or, a clearance hole 2325 may be provided at the connection between the second sidewall 2321, the fifth sidewall 2324 and the heat-conducting part 231.

[0107] It should be noted that in the embodiments of this application, "and / or" describes the relationship between associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. In addition, the character " / ", unless otherwise specified, generally indicates that the associated objects before and after it are in an "or" relationship. In other words, in this embodiment, the connection between the second sidewall 2321, the third sidewall 2322, and the heat-conducting part 231 may be provided with a clearance hole 2325, while the connection between the second sidewall 2321, the fifth sidewall 2324, and the heat-conducting part 231 may not be provided with a clearance hole 2325; alternatively, the connection between the second sidewall 2321, the third sidewall 2322, and the heat-conducting part 231 may not be provided with a clearance hole 2325, while the connection between the second sidewall 2321, the fifth sidewall 2324, and the heat-conducting part 231 may be provided with a clearance hole 2325; alternatively, the connection between the second sidewall 2321, the third sidewall 2322, and the heat-conducting part 231 may be provided with a clearance hole 2325, and the connection between the second sidewall 2321, the fifth sidewall 2324, and the heat-conducting part 231 may also be provided with a clearance hole 2325. This embodiment does not limit the specific embodiment.

[0108] Of course, in some other embodiments, any part of the heat-conducting component 23 may be provided with a clearance hole 2325 to avoid the outer casing 11 of the host 100. This application embodiment does not limit this.

[0109] Please continue to refer to this. Figure 7 and Figure 8 In some embodiments, the thickness of the heat-conducting element 23 may be non-uniform, such as the wall thickness of the first part 2321a being less than the wall thickness of the second part 2323a.

[0110] As mentioned above, when the heat-conducting component 23 is adapted to the inner surface of the outer casing 11, it means that the area of ​​the first sidewall 212 with the first portion 2321a has a larger slope than the area of ​​the first sidewall 212 with the second portion 2323a, resulting in a smaller space in the area with the first portion 2321a. Therefore, on the one hand, the wall thickness of the first portion 2321a of the heat-conducting component 23 can be made smaller so that part of the main unit 100 can be accommodated in the casing 21; on the other hand, the wall thickness of the second portion 2323a of the heat-conducting component 23 can be made larger, so as not to affect the accommodation of the main unit 100 in the casing 21, and to improve the strength of the heat-conducting component 23 to avoid damage to the heat-conducting component 23, thereby improving the reliability and service life of the heat-conducting component 23.

[0111] For example, such as Figure 5 As shown, the wall thickness of the second sidewall 2321 can be less than the wall thickness of the fourth sidewall 2323.

[0112] The wall thickness of the third sidewall 2322 near the fourth sidewall 2323 can be greater than the thickness of the third sidewall 2322 near the second sidewall 2321. For example, the wall thickness of the third sidewall 2322 can gradually increase along the direction from the first sidewall 212 to the fourth sidewall 2323, thereby making the wall thickness transition of the heat-conducting component 23 between the second sidewall 2321 and the fourth sidewall 2323 smoother, so as to facilitate the injection molding of the heat-conducting component 23.

[0113] The thickness of the fifth sidewall 2324 near the fourth sidewall 2323 can be greater than the thickness of the fifth sidewall 2324 near the second sidewall 2321. For example, the thickness of the fifth sidewall 2324 can gradually increase along the direction from the first sidewall 212 toward the fourth sidewall 2323, thereby making the transition of the wall thickness of the heat-conducting component 23 between the second sidewall 2321 and the fourth sidewall 2323 smoother, so as to facilitate the injection molding of the heat-conducting component 23.

[0114] In some embodiments, the first sidewall 212 may have a stepped surface 2121 facing the first top wall 211, and the outer edge of the heat-conducting element 23 abuts against the stepped surface 2121. Thus, the heat-conducting element 23 can be firmly fixed by the stepped surface 2121 and the first top wall 211, thereby improving the stability and reliability of the installation of the heat-conducting element 23.

[0115] For example, the first sidewall 212 includes a first annular wall 2122 and a second annular wall 2123. The first annular wall 2122 is connected to the first top wall 211, and the second annular wall 2123 is connected to the end of the first annular wall 2122 away from the first top wall 211. The connection between the second annular wall 2123 and the first annular wall 2122 forms a stepped surface 2121 facing the first top wall 211. Thus, by forming a circumferential stepped surface 2121 at the connection between the second annular wall 2123 and the first annular wall 2122, a full circumferential engagement of the outer peripheral edge of the heat-conducting component 23 can be achieved, thereby making the heat-conducting component 23 more stable and reliable.

[0116] In some embodiments, the housing 21 of the accessory head 200 can be detachably mounted to the outer casing 11 of the main unit 100 by means of snap-fit ​​or magnetic attraction. For example, the housing 21 may be provided with a first snap-fit ​​structure 2124 for snapping onto the outer casing 11, thereby making the assembly and disassembly of the accessory head 200 simpler and more convenient.

[0117] For example, as mentioned above, the housing 21 may include a first sidewall 212 and a first top wall 211. The first sidewall 212 may be provided with a first snap-fit ​​structure 2124. It is understood that, compared to placing the first snap-fit ​​structure 2124 on the first top wall 211, this embodiment avoids an overly complex structure at the first top wall 211 and avoids requiring a large space for numerous structures on the first top wall 211. This allows the area of ​​the first top wall 211 to be smaller, thus facilitating the treatment of smaller areas of skin.

[0118] For example, the first snap-fit ​​structure 2124 may be disposed at one end of the second annular wall 2123 near the first annular wall 2122.

[0119] The first snap-fit ​​structure 2124 can be a protruding structure or a recessed structure, and the embodiments of this application do not limit it in this way.

[0120] In some embodiments, the first sidewall 212 is provided with first snap-fit ​​structures 2124 on both sides facing each other in the circumferential direction, so as to facilitate snap-fitting to the opposite sides of the outer shell 11 of the main unit 100.

[0121] Specifically, there may be two first snap-fit ​​structures 2124, which are located on the outer sides of the two ends of the receiving groove, such as on the short side wall of the first side wall 212.

[0122] In some embodiments, one of the housing 21 and the heat-conducting component 23 is provided with a positioning protrusion and the other is provided with a positioning recess. The positioning protrusion is engaged with the positioning recess, thereby improving the stability and reliability of the connection between the housing 21 and the heat-conducting component 23 through the engagement of the positioning protrusion and the positioning recess.

[0123] For example, the positioning protrusion may include a first positioning post 2125, and the positioning recess may include a first positioning hole 2326. That is, one of the housing 21 and the heat-conducting component 23 is provided with the first positioning post 2125, and the other is provided with the first positioning hole 2326. The first positioning post 2125 is engaged with the first positioning hole 2326, thereby improving the stability and reliability of the connection between the heat-conducting component 23 and the housing 21. In particular, when the heat-conducting component 23 is a flexible component, its high coefficient of friction can be used to better fix the heat-conducting component 23.

[0124] For example, as mentioned above, the housing 21 may include a first top wall 211 and a first side wall 212, and the first positioning post 2125 may be located at the connection between the first top wall and the first side wall 212.

[0125] It is understandable that since the first top wall 211 and the first side wall 212 are connected by a bend, a corner will also be formed at the connection between the heat-conducting part 231 and the heat dissipation part 232 of the heat-conducting component 23. In this case, taking the heat-conducting component 23 as an example where it includes a silicone component, the corner of the silicone component is relatively easy to detach. Therefore, this embodiment of the application improves the situation where the corner of the heat-conducting component 23 is prone to detachment by providing a first positioning post 2125 at the connection between the first top wall 211 and the first side wall 212.

[0126] Specifically, the first light-emitting port 112 and the second light-emitting port 2111 are rectangular holes, and the outer side of the short side of the first light-emitting port 112 is provided with a first positioning post 2125.

[0127] It is understood that the number of the first positioning post 2125 and the first positioning hole 2326 can be one or more, such as two, three, four, five, etc., and this application embodiment does not limit this.

[0128] When there are multiple first positioning posts 2125 and multiple first positioning holes 2326, multiple first positioning posts 2125 and multiple first positioning holes 2326 can be set one-to-one, thereby improving the stability and reliability of the connection between the heat-conducting component 23 and the housing 21 through multiple pairs of mutually cooperating first positioning posts 2125 and first positioning holes 2326.

[0129] For example, as mentioned above, the heat-conducting component 23 may include a heat-conducting portion 231 and a heat-dissipating portion 232. The heat-dissipating portion 232 may include a second sidewall 2321, a third sidewall 2322, a fourth sidewall 2323, and a fifth sidewall 2324. Therefore, a first positioning hole 2326 may be provided at the connection between the third sidewall 2322 and the heat-conducting portion 231; and / or, a first positioning hole 2326 may be provided at the connection between the fifth sidewall 2324 and the heat-conducting portion 231.

[0130] It is also understandable that, continuing with the example of the thermal conductive component 23 including the silicone component, the silicone component usually shrinks during the injection molding cooling process. Therefore, during the injection molding process of the thermal conductive component 23, the shrinkage of the hole wall of the first positioning hole 2326 can cause the thermal conductive component 23 (or the silicone component) to tightly wrap around the first positioning post 2125, thereby improving the stability and reliability of the installation of the thermal conductive component 23.

[0131] In some embodiments, the positioning recess may include a positioning groove 2311, and the positioning protrusion may include a positioning rib 2112. The positioning rib 2112 is engaged with the positioning groove 2311 and is arranged around the second light outlet 2111. Specifically, the positioning groove 2311 is formed at the inner periphery of the heat-conducting member 23, and the positioning rib 2112 is formed at the periphery of the second light outlet 2111.

[0132] It is understandable that the heat-conducting component 23 needs to form a clearance hole at the second light-emitting port 2111 so that the light emitted from the first light-emitting port 112 of the host 100 can pass through the clearance hole of the heat-conducting component 23 and be emitted from the second light-emitting port 2111. Therefore, the heat-conducting component 23 will form an inner edge (i.e., the inner edge of the clearance hole, i.e., the inner peripheral edge 233 mentioned above) at the second light-emitting port 2111. Two connected different parts are usually prone to warping from the edge and then gradually falling off. Therefore, by providing a positioning rib 2112 and a positioning groove 2311 at the second light-emitting port 2111, the present application embodiment can improve the stability and reliability of the connection between the heat-conducting component 23 and the housing 21, and improve the service life of the auxiliary head 200.

[0133] It is also understood that the positioning rib 2112 can be a closed annular structure surrounding the second light outlet 2111, or it can be a non-closed annular structure surrounding the second light outlet 2111. This application embodiment does not limit this.

[0134] In some embodiments, the second light outlet 2111 has positioning ribs 2112 on at least two sides in the circumferential direction, thereby increasing the length of the positioning ribs 2112 and the positioning groove 2311, so that the connection between the heat conductor 23 and the housing 21 is more stable.

[0135] For example, the host 100 also includes a photoelectric sensor assembly 14, and the auxiliary head 200 also includes a second light-transmitting element 24, which is mounted on the housing 21. When the housing 21 is mounted on the outer casing 11, the second light-transmitting element 24 and the photoelectric sensor assembly 14 are correspondingly arranged to allow the photoelectric sensor assembly 14 to transmit light signals.

[0136] It is understood that the photoelectric sensor component 14 can be used to detect whether the skin care device is in contact with the skin to be treated. For example, the photoelectric sensor component 14 may include a proximity sensor, a laser rangefinder, an infrared rangefinder, etc. The photoelectric sensor component 14 can also be used to detect the skin color of the skin to be treated. For example, the photoelectric sensor component 14 may include a color sensor, etc. The embodiments of this application do not limit this.

[0137] Additionally, the photoelectric sensor assembly 14 may include a photoelectric sensor inside the housing 11 and a light guide that passes through the housing 11, with one end of the light guide protruding from the outer surface of the housing 11 for the photoelectric sensor to transmit light signals.

[0138] Optionally, the photoelectric sensor assembly 14 can be a color sensor assembly, whereby the photoelectric sensor is a color sensor used to detect the skin color of the skin to be treated.

[0139] In some embodiments, the second light-transmitting element 24 may be located on one side of the second light-emitting port 2111 in the circumferential direction and between the two ends of the positioning rib 2112.

[0140] Therefore, it can also be understood that the positioning rib 2112 surrounds at least three sides of the second light outlet 2111 in the circumferential direction, so that the mating area between the positioning rib 2112 and the positioning groove 2311 is larger, thereby making the connection between the housing 21 and the heat-conducting component 23 more stable and reliable. In addition, compared with setting the second light-transmitting component 24 on the outer periphery of the positioning rib 2112, the embodiment of this application can make the area of ​​the first top wall 211 of the housing 21 smaller, thereby facilitating the treatment of small areas of skin.

[0141] Of course, in some other embodiments, the positioning rib 2112 may be arranged around the second light outlet 2111, and the second light-transmitting element 24 may be located on the outer periphery of the positioning rib 2112. This application embodiment does not limit this.

[0142] In some embodiments, one of the housing 21 and the second light-transmitting element 24 is provided with a second positioning post 2113 and the other is provided with a second positioning hole 2421. The second positioning post 2113 is engaged with the second positioning hole 2421 so that the second light-transmitting element 24 can be fixed to the housing 21.

[0143] In some embodiments, the second light-transmitting element 24 includes a through-hole portion 241 and a mounting portion 242 connected together. The through-hole portion 241 is mounted on the housing 21, and the mounting portion 242 abuts against the inner surface of the housing 21. Thus, the through-hole portion 241 can be used to prevent the second light-transmitting element 24 from detaching.

[0144] In some embodiments, the mounting part 242 may be provided with a second positioning hole 2421 so that the mounting part 242 is fixed to the inner surface of the housing 21.

[0145] In some embodiments, each end of the through portion 241 along the length direction is provided with a mounting portion 242, and each mounting portion 242 is provided with a second positioning hole 2421.

[0146] like Figure 5 As shown, in some embodiments, the heat-conducting element 23 may be provided with a clearance notch 236, and the second light-transmitting element 24 may pass through the clearance notch 236 to prevent the heat-conducting element 23 from separating the second light-transmitting element 24 from the photoelectric sensor assembly 14. For example, the clearance notch 236 may be provided on the inner periphery 233 of the heat-conducting element 23.

[0147] In some embodiments, the first light-transmitting element 22 may include sapphire, thereby giving it advantages such as aesthetics, good cooling effect, and high light transmittance. Of course, in some other embodiments, the first light-transmitting element 22 may also include light-transmitting elements such as glass or acrylic, and this application does not limit this.

[0148] Please continue to refer to this. Figure 9 In some embodiments, the first light-transmitting element 22 is provided with a guide structure 221, which is used to guide the first light-transmitting element 22 when it is inserted into the second light-emitting port 2111, so that the first light-transmitting element 22 can be installed more accurately and conveniently at the second light-emitting port 2111.

[0149] For example, the first light-transmitting element 22 includes a second light-emitting surface 222. The second light-emitting surface 222 faces the outside of the housing 21 so that light generated by the host 100 can be emitted onto the skin to be treated. The guide structure 221 includes a guide ramp that is inclinedly connected to the second light-emitting surface 222.

[0150] In the actual assembly process, the first light-transmitting element 22 can be inserted into the second light-emitting port 2111 from one side of the inner surface of the housing 21. During this process, the guide slope of the first light-transmitting element 22 can abut against the connection between the hole wall of the second light-emitting port 2111 and the inner surface of the housing 21, thereby guiding the first light-transmitting element 22 into the second light-emitting port 2111, thus giving the first light-transmitting element 22 the advantage of easy installation.

[0151] Please continue to refer to this. Figure 10 and Figure 11 In some embodiments, when the size of the second light outlet 2111 is smaller than the size of the first light outlet 112, and the cold compress 131a is a third light-transmitting element 131 disposed in the first light outlet 112, the auxiliary head 200 further includes an isolation element 25, which surrounds the first light-transmitting element 22.

[0152] When the housing 21 is installed on the outer casing 11, the first light-transmitting element 22 and the third light-transmitting element 131 are arranged opposite to each other, and the isolation element 25 abuts against the third light-transmitting element 131 to form a sealed space between the first light-transmitting element 22 and the third light-transmitting element 131.

[0153] As can be understood, as mentioned above, during the operation of the skin care device, heat exchange occurs between the first light-transmitting element 22 and the third light-transmitting element 131, resulting in a lower temperature for the first light-transmitting element 22, which can then be used for cold compresses on the skin to be treated.

[0154] At this time, the inner surface of the auxiliary head 200 partially obstructs the first light outlet 112, which may cause the internal temperature of the auxiliary head 200 to be relatively high. If the high-temperature air inside the auxiliary head 200 flows into the space between the first light-transmitting element 22 and the third light-transmitting element 131, the lower temperature of the first light-transmitting element 22 will easily cause condensation or water mist to form on both the first light-transmitting element 22 and the third light-transmitting element 131. This will cause fogging on the side of the first light-transmitting element 22 facing the third light-transmitting element 131, which can affect light emission and ultimately affect the skin care effect of the skin care device.

[0155] In contrast, the embodiment of this application forms a sealed space between the first light-transmitting element 22 and the third light-transmitting element 131 by means of the isolation element 25, which can prevent high-temperature air at the inner surface of the housing 21 from flowing into the space between the first light-transmitting element 22 and the third light-transmitting element 131, thereby making it less likely for the surface of the first light-transmitting element 22 facing the third light-transmitting element 131 to fog up.

[0156] In some embodiments, the spacer 25 is made of a flexible material. In this way, the deformation of the spacer 25 can be used to improve the sealing performance of the sealed space.

[0157] In some embodiments, the spacer 25 may be a thermally insulating flexible material. Furthermore, when the spacer 25 abuts against the third light-transmitting element 131, the spacer 25 may undergo adaptive deformation to form a reliable sealing space between the first light-transmitting element 22 and the third light-transmitting element 131.

[0158] In some embodiments, the insulating member 25 may be a thermally conductive flexible material, such as a thermally conductive silicone material. When the insulating member 25 abuts against the third light-transmitting member 131, the insulating member 25 may undergo adaptive deformation to form a reliable sealing space between the first light-transmitting member 22 and the third light-transmitting member 131.

[0159] For example, the isolation element 25 can be a silicone part, a rubber part, etc., and this application embodiment does not limit it.

[0160] Please continue to refer to this. Figure 12 In some embodiments, the isolation member 25 includes a main isolation portion 251. The isolation member may also include an inner flange 252 disposed at one end of the main isolation portion 251. The main isolation portion 251 is disposed between the inner surfaces of the first light-transmitting member 22 and the second light-emitting port 2111, that is, the main isolation portion 251 is disposed around the first light-transmitting member 22. The inner flange 252 is used to clamp between the first light-transmitting member 22 and the third light-transmitting member 131 when the housing is installed on the outer shell 11.

[0161] It is understandable that during the production of skin care devices, due to manufacturing and assembly tolerances, certain dimensional and positional tolerances are inevitable between the various parts of the skin care device. Whether the first light-transmitting element 22 and the third light-transmitting element 131 are designed to be directly bonded for heat transfer or have a small gap for heat transfer through air, during actual assembly, these dimensional and positional tolerances may cause the first light-transmitting element 22 and the third light-transmitting element 131 to collide and be scratched or damaged. In contrast, the embodiment of this application can improve the situation where the first light-transmitting element 22 and the third light-transmitting element 131 collide and are scratched or damaged by the inner flange 252 sandwiched between them.

[0162] In some embodiments, the thickness of the inner flange 252 is less than or equal to 0.36 mm, thereby avoiding the inner flange 252 being too thick and causing the gap between the first light-transmitting element 22 and the third light-transmitting element 131 to be too large, thereby improving the efficiency of heat transfer between the first light-transmitting element 22 and the third light-transmitting element 131, and ultimately improving the cooling effect of the first light-transmitting element 22.

[0163] For example, the thickness of the inner flange 252 is 0.36 mm, 0.32 mm, 0.3 mm, 0.29 mm, 0.28 mm, 0.27 mm, 0.26 mm, 0.25 mm, 0.24 mm, 0.23 mm, 0.22 mm, 0.21 mm, 0.2 mm, 0.19 mm, 0.18 mm, 0.16 mm, 0.15 mm, or 0.12 mm, and this application embodiment does not limit it.

[0164] Understandably, if the thickness of the inner flange 252 is too thick, such as exceeding 0.4 mm, it will result in poor heat transfer through the air gap; if the thickness of the inner flange 252 is too thin, such as less than 0.1 mm, it will lead to excessive production difficulty and easy breakage, and may even make it difficult to form a sealed space.

[0165] In some embodiments, the inner flange 252 may be annular. For example, the inner surface of the main isolation portion 251 may have an inner flange 252 that protrudes around a circumference.

[0166] Of course, in some other embodiments, a portion of the inner surface of the main isolation portion 251 may be provided with a protruding inner flange 252.

[0167] For example, the number of inward flanges 252 may be at least two, and the at least two inward flanges 252 are distributed on opposite sides of the inner surface of the main isolation portion 251. For example, the two long sides or the two short sides of the inner surface of the main isolation portion 251 are respectively provided with inward flanges 252, and this embodiment of the application does not limit this.

[0168] Please continue to refer to this. Figure 13 For the insulating member 25 to be made of a thermally conductive flexible material, the insulating member 25 may further include an outer flange 253 located at one end of the main insulating portion 251. The outer flange 253 and the inner flange 252 are located on opposite sides of one end of the main insulating portion 251. When the insulating member 25 abuts against the third light-transmitting member 131, the outer flange 253 can abut against the third light-transmitting member 131. In this way, the contact area between the insulating member 25 and the third light-transmitting member 131 can be increased, thereby increasing the flow direction ratio of the cold air in the third light-transmitting member 131, so as to adjust the temperature difference between the first light-transmitting member 22 and the housing 21.

[0169] Optionally, the width and thickness of the outer flange 253 can be set with reference to the inner flange 252.

[0170] In some embodiments, the surface of the heat-conducting part 231 is also provided with a pre-compression protrusion 2312, thereby improving assembly safety.

[0171] The technical solutions of the embodiments of this application will now be described in conjunction with the structure of the host 100.

[0172] In some embodiments, when the accessory head 200 is mounted on the housing 11, the housing 21 blocks a portion of the first light-emitting port 112. This reduces the light-emitting area of ​​the skin care device, allowing for skin care of small areas such as eyebrows, armpits, and genitals.

[0173] Correspondingly, the light emitted from the area where the first light outlet 112 is blocked will cause the auxiliary head 200 to generate a large amount of heat, which will easily lead to heat accumulation at the first top wall 211. Therefore, in this embodiment, the housing 21 (such as the first top wall 211 of the housing 21) is thermally connected to the cooling assembly 13 of the host 100 through the heat-conducting component 23, so that the cooling assembly 13 of the host 100 can have a better heat dissipation effect on the housing 21, thereby avoiding the housing 21 with excessively high temperature from coming into contact with the skin to be treated and affecting the user experience.

[0174] In some embodiments, the skin care device can be a hair removal device or a skin rejuvenation device, or any other type of skin care device; this application does not limit this.

[0175] It is understandable that skin treatment devices can be classified into different types according to the type of light produced by the light-emitting component 12. For example, the light-emitting component 12 can be used to generate lasers, which is a laser light source component, and the skin treatment device is a laser-type skin treatment device; the light-emitting component 12 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-type skin treatment device; and the light-emitting component 12 can be an LED light source component.

[0176] Taking the light-emitting component 12 as an example of an IPL light source component, the light-emitting principle of this type of skin treatment device is as follows: 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 the preset value and the controller receives the trigger signal, the electrical energy in the capacitor is released, and the instantaneous voltage can reach several hundred volts, thereby exciting the lamp tube to release strong pulse light instantly, thus completing one light emission.

[0177] The following example uses the cold compress component 13 as an illustration.

[0178] The cooling compress assembly 13 may include a cooling compress 131a and a cooling pad 132. The cooling compress 131a is disposed at the first light outlet 112. The cooling pad 132 is thermally connected to the cooling compress 131a. Thus, the cooling pad 132 can cool the cooling compress 131a, thereby realizing the cooling compress 131a on the skin to be treated.

[0179] The cooling compress 131a is disposed at the first light-emitting port 112. It can be installed inside the first light-emitting port 112, disposed on the periphery of the first light-emitting port 112, or partially disposed inside and partially disposed on the periphery of the first light-emitting port 112. This embodiment does not limit the specific placement of the cooling compress. It should be noted that when the cooling compress 131a is installed inside the first light-emitting port 112, it can directly apply a cooling compress to the skin to be treated. When the cooling compress 131a is disposed on the periphery of the first light-emitting port 112, it indirectly applies a cooling compress by first applying a cooling compress to the skin around the skin to be treated, thereby transferring cold energy to the skin through that skin.

[0180] It is understandable that the above description of the auxiliary head 200 is mainly based on the example of the cooling compress 131a being installed inside the first light-emitting port 112. If the cooling compress 131a is located on the periphery of the first light-emitting port 112, or if the cooling compress 131a is partially located inside the first light-emitting port 112 and partially located on the periphery of the first light-emitting port 112, the structure of the heat-conducting component 23 can be adapted accordingly. For example, when the cooling compress 131a is located on the periphery of the first light-emitting port 112, the heat-conducting part 231 can be located on the periphery of the first light-emitting port 112, and the heat-conducting component 23 can also include a shielding part connected to the inner periphery of the heat-conducting part 231 to facilitate blocking light and exchanging heat.

[0181] It is understandable that the refrigeration element 132 is also called the semiconductor refrigeration element 132. It utilizes the Peltier effect of semiconductor materials. When direct current passes through a thermocouple composed of two different semiconductor materials connected in series, heat can be absorbed and released at the two ends of the thermocouple, respectively, so as to achieve the purpose of cooling.

[0182] For example, the cooling device 131a may include a third light-transmitting element 131. The third light-transmitting element 131 is disposed at the first light-emitting port 112 to transmit light emitted by the light-emitting assembly 12. Correspondingly, a cooling pad 132 is thermally connected to the third light-transmitting element 131. For example, the cooling pad 132 is directly attached to the third light-transmitting element 131 or is attached to the third light-transmitting element 131 through a thermally conductive medium such as thermally conductive silicone grease.

[0183] Furthermore, the third light-transmitting element 131 can be cooled by the cooling plate 132. The cooled third light-transmitting element 131 then protrudes from the first light outlet 112, allowing it to come into contact with the skin. This allows the third light-transmitting element 131 to not only transmit light from the light source for skin care but also provide a cold compress through the cooling plate 132. Alternatively, on one hand, the cooled third light-transmitting element 131 contacts the first light-transmitting element 22, cooling it and ultimately providing a cold compress to the treated skin. On the other hand, the cooled third light-transmitting element 131 cools the housing 21 through the heat-conducting element 23, preventing the housing 21 from overheating and affecting the user experience.

[0184] The first light-transmitting element 22 and / or the third light-transmitting element 131 can be light-transmitting crystals, such as sapphire, or other light-transmitting materials. This application embodiment does not limit this.

[0185] In some embodiments, the first light-transmitting element 22 and the third light-transmitting element 131 are surface-fitted to make the first light-transmitting element 22 and the third light-transmitting element 131 thermally connected, or the distance between the first light-transmitting element 22 and the third light-transmitting element 131 is less than or equal to 0.3 mm to make the first light-transmitting element 22 and the third light-transmitting element 131 transfer heat through the air.

[0186] The distance between the first light-transmitting element 22 and the third light-transmitting element 131 is greater than or equal to 0.06 mm.

[0187] The distance between the first light-transmitting element 22 and the third light-transmitting element 131 can be selected as 0.3 mm, 0.29 mm, 0.28 mm, 0.27 mm, 0.26 mm, 0.25 mm, 0.24 mm, 0.23 mm, 0.22 mm, 0.21 mm, 0.2 mm, 0.19 mm, 0.18 mm, 0.16 mm, 0.15 mm, or 0.12 mm, 0.1 mm, 0.06 mm.

[0188] Understandably, if the spacing is too large, such as exceeding 0.4 mm, it will result in poor heat transfer through the gap; if the spacing is too small, such as less than 0.06 mm, it will easily scratch the light-transmitting parts.

[0189] Optionally, the cooling pad 131a is disposed on the open end face of the first light outlet 112. The cooling element 132 is thermally connected to the cooling pad 131a. For example, the cooling element 132 is directly attached to the cooling pad 131a or is attached to the cooling pad 131a through a thermally conductive medium such as thermally conductive silicone grease.

[0190] In another embodiment, the cold compress 131a may also be configured in other structural forms, such as an annular metal part surrounding the first light outlet 112.

[0191] For example, the cold compress assembly 13 may also include a cold compress member 131a with a flow cavity, a refrigerant (such as a refrigerant liquid or refrigerant gas) that is flowably disposed in the flow cavity, and a drive device (such as a compressor) for driving the refrigerant to circulate. In this way, the cold compress function of the cold compress member 131a can be realized by using the cooling medium.

[0192] Correspondingly, in another embodiment, the cooling patch 131a may be arranged in a circumferential manner on the opening end face of the first light outlet 112.

[0193] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0194] The skin care device and its accessory head 200 provided in the embodiments of this application have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this application. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of this application. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this application. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. An attachment head of a skin care device, the skin care device comprising a main machine and the attachment head, the main machine comprising a housing, and a light emitting assembly and a cold compress assembly provided at the housing, the housing having a first light emitting port, the light emitting assembly being configured to generate light rays toward a skin to be treated from the first light emitting port, the cold compress assembly comprising a cold compress member provided at the first light emitting port, the cold compress member being configured to perform cold compress on the skin to be treated; characterized in that, The accessory head comprises: a shell for detachably mounting on the outer shell, the shell being provided with a second light outlet for being correspondingly arranged with the first light outlet when the shell is mounted on the outer shell; an inner surface of the shell for facing an outer surface of the outer shell when the shell is mounted on the outer shell; a first light-transmitting member mounted on the second light outlet for transmitting light rays emitted through the first light outlet; the first light-transmitting member is also used for heat conduction connection or space heat transfer with the cold compress member when the shell is mounted on the outer shell, so as to cold compress the skin to be treated; and a heat-conducting member arranged on the inner surface of the shell, the heat-conducting member extending along the inner surface of the shell, the heat-conducting member comprising a heat-conducting part for abutting with the cold compress member when the shell is mounted on the outer shell.

2. The attachment head of claim 1, wherein The inner surface of the shell is provided with a receiving groove, and the second light outlet is located at the bottom of the receiving groove; the heat-conducting member is matched with the receiving groove; and / or when the size of the second light outlet is smaller than that of the first light outlet, and when the cold compress member is a third light-transmitting member arranged in the first light outlet, the heat-conducting part is used for abutting with the light-emitting surface of the third light-transmitting member when the shell is mounted on the outer shell, so as to also cover part of the area of the first light outlet; and / or the heat-conducting member is a heat-conducting flexible material member; and / or the heat-conducting member is in the form of a thin sheet extending structure as a whole.

3. The attachment head of claim 2, wherein, The shell comprises: a first top wall provided with the second light outlet; and a first side wall connected with the first top wall, and forming a receiving space between the first side wall and the first top wall for receiving one end of the outer shell where the first light outlet is located; and the heat-conducting member further comprises a heat-dissipating part, the heat-conducting part is arranged on the inner surface of the first top wall for abutting with the cold compress member, the heat-dissipating part is in the form of a ring structure, the inner side edge of the heat-dissipating part is connected with the heat-conducting part, the heat-dissipating part is arranged on the inner surface of the first side wall and extends along the inner surface of the first side wall; and / or the inner surface of the receiving space is formed with the receiving groove.

4. The attachment head of claim 3, wherein, when the heat-conducting member comprises the heat-dissipating part, the heat-dissipating part comprises a first part and a second part, the first part and the second part are both obliquely connected with the heat-conducting part, the included angle between the first part and the heat-conducting part is smaller than the included angle between the second part and the heat-conducting part; wherein the heat-conducting member is further provided with an avoiding hole, the avoiding hole is at least partially located in the first part, or the avoiding hole is arranged adjacent to the first part.

5. An attachment head according to claim 4, wherein, the heat-dissipating part comprises a second side wall, a third side wall, a fourth side wall and a fifth side wall, the second side wall, the third side wall, the fourth side wall and the fifth side wall are connected in sequence and end to end around the outer circumferential side of the heat-conducting part; wherein the included angle between the second side wall and the heat-conducting part is smaller than the included angle between the fourth side wall and the heat-conducting part. The connecting part of the second side wall, the third side wall and the heat conduction part is provided with the avoiding hole; and / or, the connecting part of the second side wall, the fifth side wall and the heat conduction part is provided with the avoiding hole.

6. The attachment head of claim 3, wherein, When the heat conduction part comprises the heat dissipation part, the heat dissipation part comprises a first part and a second part, the first part and the second part are both obliquely connected with the heat conduction part, and the included angle between the first part and the heat conduction part is smaller than the included angle between the second part and the top wall. The wall thickness of the first part is smaller than the wall thickness of the second part.

7. The attachment head of claim 3, wherein, One of the shell and the heat conduction part is provided with a first positioning column, and the other is provided with a first positioning hole, the first positioning column is connected with the first positioning hole, and the first positioning column is located at the connecting part of the first top wall and the first side wall. And / or, The first side wall comprises a first ring wall and a second ring wall, the first ring wall is connected to the first top wall, the second ring wall is connected to one end of the first ring wall away from the first top wall, the connecting part of the second ring wall and the first ring wall forms a step surface towards the first top wall, and the outer end edge of the heat conduction part abuts against the step surface; and / or, The first side wall is provided with a first clamping structure, and the first clamping structure is used for clamping to the outer shell.

8. The attachment head of claim 1, wherein, When the size of the second light outlet is smaller than the size of the first light outlet, and the cold compress part is a third light-transmitting part arranged in the first light outlet, the auxiliary head further comprises a separation part, the separation part is arranged around the first light-transmitting part, and the separation part is a flexible material part; When the shell is mounted on the outer shell, the first light-transmitting part and the third light-transmitting part are arranged opposite to each other, and the separation part abuts against the third light-transmitting part, so as to form a sealed space between the first light-transmitting part and the third light-transmitting part.

9. The attachment head of claim 8, wherein, The separation part is a heat-insulating flexible material part, or the separation part is a heat-conducting flexible material part; and / or, The separation part comprises a main separation part and an inward turned edge arranged at one end of the main separation part, the main separation part is arranged around the first light-transmitting part, the thickness of the inward turned edge is less than or equal to 0.36 mm, and the inward turned edge is used for being clamped between the first light-transmitting part and the third light-transmitting part when the shell is mounted on the outer shell.

10. An attachment head according to any one of claims 1 to 9, characterized in that The host further comprises a photoelectric sensor assembly, and the auxiliary head further comprises a second light-transmitting part mounted on the shell, When the shell is mounted on the outer shell, the second light-transmitting part and the photoelectric sensor assembly are arranged correspondingly, so as to transmit light signals by the photoelectric sensor assembly.

11. The attachment head of claim 10, wherein, One of the shell and the heat conduction part is provided with a positioning groove, and the other is provided with a positioning rib, the positioning rib is connected with the positioning groove; wherein the positioning rib is arranged around the second light outlet, and the second light-transmitting part is located between two end portions of the positioning rib; and / or, One of the shell and the second light-transmitting part is provided with a second positioning column, and the other is provided with a second positioning hole, the second positioning column is connected with the second positioning hole; and / or, The second light-transmissive piece comprises a connecting portion and a mounting portion, the connecting portion is arranged in the housing, and the mounting portion abuts against the inner surface of the housing; and / or, The first light-transmissive piece is provided with a guide structure for guiding when the first light-transmissive piece is inserted into the second light outlet; The photoelectric sensor assembly is a color sensor assembly; and / or, The bottom of the accommodating groove of the inner surface of the housing is provided with a positioning rib located at the periphery of the second light outlet, the heat-conducting piece is an annular piece, the inner periphery of the heat-conducting piece abuts against the positioning rib, and the outer periphery of the heat-conducting piece abuts against the peripheral wall of the accommodating groove.

12. A skin treatment device characterized by, Comprise: A host, the host comprises a housing, a light-emitting assembly and a cold compress assembly, the outer surface of the housing is provided with a working surface, the light-emitting assembly is used for generating light rays from the working surface to the skin to be treated, and the cold compress assembly is arranged on the working surface for cold compressing the skin to be treated; and, The accessory head according to any one of claims 1 to 11.

13. A skin treatment device according to claim 12, wherein, When the housing is mounted on the housing, the housing shields part of the first light outlet; and / or, The skin care device is a hair removal instrument or a skin rejuvenation instrument; And / or, The size of the second light outlet is smaller than that of the first light outlet, the cold compress piece is a third light-transmissive piece arranged in the first light outlet, the first light-transmissive piece and the third light-transmissive piece are arranged oppositely, and the first light-transmissive piece and the third light-transmissive piece are surface-adhered to each other, so that the first light-transmissive piece and the third light-transmissive piece are in heat-conducting connection, or the distance between the first light-transmissive piece and the third light-transmissive piece is less than or equal to 0.3 mm, so that the first light-transmissive piece and the third light-transmissive piece are in heat transfer through space.

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