Skin care device

Abstract

A skin care device comprises a main machine and an auxiliary head, a shell of the main machine is provided with a working head, and a first light-transmitting piece is installed on the working head; the light-emitting device irradiates light towards the first light-transmitting piece so as to nurse the skin. The first electrode part is exposed out of the working head; the auxiliary head is detachably connected with the working head, and the second light-transmitting piece is installed on a cover body of the auxiliary head; the second electrode is partially exposed out of the cover body; the first light-transmitting piece is provided with a first light-emitting surface back to the light-emitting device, the first electrode is provided with a first surface exposed out of the working head, the second light-transmitting piece is provided with a second light-emitting surface back to the light-emitting device, and the second electrode is provided with a second surface exposed out of the cover body. The total area of the first light-emitting surface and the first surface is larger than the total area of the second light-emitting surface and the second surface. When skin care is carried out, the auxiliary head or the main machine can be selected according to the characteristics of different areas of the skin, each detail of the skin can be taken into consideration more comprehensively and meticulously, and therefore a better care effect is achieved.

Description

Technical Field

[0001] The present disclosure relates to the field of medical cosmetology technology, and in particular to a skin care device. Background Art

[0002] In recent years, with the rapid development of China's economy, advancements in science and technology, and rising living standards, people are not only pursuing a better quality of life, but are also placing greater emphasis on skin care. Skin care devices, used to regulate and improve skin condition, can deeply stimulate skin cell activity, thereby promoting skin metabolism and cell proliferation, and delaying facial aging.

[0003] Related art provides a skin care device that uses a light-emitting unit to emit light and electrodes to output microcurrent and / or radiofrequency current for skin care. However, this skin care device has the following drawbacks in specific applications: Existing skin care devices are often flat and do not conform well to uneven areas such as the eyes or nose. Consequently, existing technology often fails to effectively care for uneven skin areas such as the eyes or nose, resulting in unsatisfactory results.

[0004] Public content

[0005] The main purpose of the present disclosure is to provide a skin care device, which aims to solve the technical problem that existing skin care devices cannot effectively care for the skin in uneven areas such as the eyes or nose.

[0006] To achieve the above objectives, the present disclosure provides a skin care device, comprising a main body, the main body including a housing, a first light-transmitting member, a light-emitting device, a first electrode, and a main control circuit board. The housing defines an inner cavity and a working head, the working head defining a first opening communicating with the inner cavity; the first light-transmitting member is mounted in the first opening; the light-emitting device is disposed in the inner cavity and irradiates light toward the first light-transmitting member to provide skin care through the first light-transmitting member; the first electrode is at least partially exposed from the working head for outputting microcurrent and / or radiofrequency current to the skin; the main control circuit board is electrically connected to the first electrode for controlling the first electrode to generate microcurrent and / or radiofrequency current;

[0007] An auxiliary head, the auxiliary head being detachably connected to the working head of the main unit, the auxiliary head comprising a cover, a second light-transmitting member, and a second electrode; the cover being provided with a second opening; the second light-transmitting member being mounted in the second opening; the second light-transmitting member being configured to face the first light-transmitting member when the auxiliary head is connected to the main unit, so that light emitted by the light-emitting device sequentially passes through the first light-transmitting member and the second light-transmitting member before irradiating the skin; the second electrode being at least partially exposed through the cover; the second electrode being configured to electrically connect to the first electrode after the auxiliary head is mounted on the main unit to output microcurrent and / or radiofrequency current to the skin;

[0008] In which, the first light-transmitting member has a first light-emitting surface facing away from the light-emitting device, the first electrode has a first surface exposed outside the working head for contacting the skin, the second light-transmitting member has a second light-emitting surface facing away from the light-emitting device, the second electrode has a second surface exposed on the cover body for contacting the skin, and the sum of the areas of the first light-emitting surface and the first surface is greater than the sum of the areas of the second light-emitting surface and the second surface.

[0009] In some embodiments, the area of ​​the first light-emitting surface is larger than the area of ​​the second light-emitting surface; and / or the area of ​​the first surface is larger than the area of ​​the second surface.

[0010] In some embodiments, the outer edge of the first light-emitting surface is a polygon with more than four sides; and / or the outer edge of the second light-emitting surface is a polygon with more than four sides.

[0011] In some embodiments, the first light emitting surface and the second light emitting surface have the same shape; and / or, the outer edge of the first light emitting surface and the outer edge of the second light emitting surface are both regular octagons, regular hexagons, regular heptagons, regular nonagons, or regular decagons.

[0012] In some embodiments, the outer edge of the first light emitting surface is a regular polygon, the number of the first electrodes is equal to the number of sides of the first light emitting surface, and each first electrode is correspondingly arranged at intervals on the periphery of one side of the first light emitting surface.

[0013] In some embodiments, the outer edge of the second light-emitting surface is a regular polygon, the number of the second electrodes is half the number of sides of the second light-emitting surface, and each of the second electrodes is correspondingly arranged at intervals around the periphery of at least two sides of the second light-emitting surface. Each of the second electrodes is used to electrically connect with two adjacent first electrodes after the auxiliary head is installed on the host.

[0014] In some embodiments, each second electrode is electrically connected to at least two conductive connectors, and the ends of the at least two conductive connectors away from the second electrode are used to adhere to and electrically connect with the surfaces of two adjacent first electrodes one by one after the auxiliary head is installed on the host.

[0015] In some embodiments, the light emitting device is used to emit light with a wavelength between 630nm and 1940nm; and / or, the light emitting device is used to emit light with a peak at least between 1400nm±100nm.

[0016] In some embodiments, the light-emitting device includes at least one halogen lamp, the halogen lamp includes a lamp tube and a filament arranged in the lamp tube, the filament includes a first spiral segment, a second spiral segment and a non-spiral segment, the first spiral segment and the second spiral segment are respectively connected to the two ends of the lamp tube, and the non-spiral segment is connected between the first spiral segment and the second spiral segment.

[0017] In some embodiments, the host further includes a cooling element, which is located in the housing and thermally connected to the first light-transmitting element for cooling the first light-transmitting element; and / or, the first light-transmitting element is sapphire; and / or, the second light-transmitting element is sapphire.

[0018] In some embodiments, the host further includes a fan, a radiator and a heat pipe, the outer shell is formed with a first air inlet and a first air outlet, the fan, radiator and heat pipe are all arranged in the outer shell, the fan is used to drive the air entering the outer shell from the first air inlet to flow through the radiator and the light-emitting device and then be discharged from the first air outlet; one end of the heat pipe is passed through and connected to the radiator, and the other end is connected to the refrigeration component.

[0019] In some embodiments, the housing is Z-shaped or S-shaped.

[0020] In some embodiments, the shell includes a first shell segment and a second shell segment, and a contraction portion is formed between the first shell segment and the second shell segment, the cross-section of which is inwardly contracted relative to the first shell segment and the second shell segment. The first shell segment extends from the contraction portion along a first direction, and the second shell segment extends from the contraction portion along a second direction different from the first direction. The contraction portion is at least partially used for a person to hold the skin care device by hand for care work. The working head is provided at one end of the first shell segment away from the contraction portion, and the working head forms a working surface for contacting the skin. The line connecting the center of the working surface and the center of the minimum cross-section of the contraction portion forms an angle greater than 0° and less than or equal to 90° with the working surface, and the light-emitting device is provided in the first shell segment.

[0021] In some embodiments, the host further includes a power supply circuit board, and the main control circuit board and the power supply circuit board are spaced apart in the second shell section; the main control circuit board is also electrically connected to the light-emitting device for controlling the light-emitting device to emit light.

[0022] In some embodiments, the host further includes a radio frequency circuit board, which is spaced apart and distributed in the second shell section along the same direction as the main control circuit board and the power supply circuit board; the radio frequency circuit board is electrically connected to the first electrode for controlling the first electrode to generate radio frequency current.

[0023] In some embodiments, the accessory head is detachably connected to the host via a snap and / or magnet.

[0024] The skin care device provided in this application is provided with a main unit and an auxiliary head, which is detachably connected to the main unit. The main unit includes a light-emitting device, a first light-transmitting member, and a first electrode. The first light-transmitting member has a first light-emitting surface facing away from the light-emitting device, and the first electrode has a first surface exposed outside the working head for contacting the skin. The auxiliary head includes a second light-transmitting member and a second electrode. The second light-transmitting member has a second light-emitting surface facing away from the light-emitting device, and the second electrode has a second surface exposed outside the cover for contacting the skin. The total area of ​​the first light-emitting surface and the first surface is greater than the total area of ​​the second light-emitting surface and the second surface. It can be seen that the main unit has a larger contact area with the skin and is suitable for treating relatively flat areas of the skin, such as the cheeks and forehead. Skin care using the main unit can be more efficient and uniform. The area of ​​the auxiliary head acting on the skin is smaller than the area of ​​the main unit acting on the skin. The design of the auxiliary head disclosed in the present invention can be extended into the depressions near the eyes or nose, and can move along the uneven shapes of the eyes or nose, and can fit well with uneven parts such as the eyes or nose. Therefore, when using the skin care device disclosed in the present invention for skin care, the auxiliary head or the main unit can be selected according to the characteristics of different skin areas, and every detail of the skin can be taken care of more comprehensively and meticulously, thereby achieving better care effects. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic structural diagram of a skin care device according to an embodiment of the present disclosure;

[0026] Figure 2 This is a partially disassembled schematic diagram of a skin care device according to an embodiment of the present disclosure;

[0027] Figure 3 This is a schematic diagram of a partial disassembly of a host in one embodiment of the present disclosure;

[0028] Figure 4 This is a schematic structural diagram of an auxiliary head in one embodiment of the present disclosure;

[0029] Figure 5 This is a schematic diagram of the structure of a host in one embodiment of the present disclosure;

[0030] Figure 6 for Figure 5 Schematic cross-section of the middle AA;

[0031] Figure 7 for Figure 6 A magnified schematic diagram of B in the middle;

[0032] Figure 8 This is a schematic structural diagram of an auxiliary head in one embodiment of the present disclosure;

[0033] Figure 9 for Figure 8 Schematic cross-section of the CC;

[0034] Figure 10 This is a disassembly diagram of an auxiliary head in one embodiment of the present disclosure;

[0035] Figure 11 This is a schematic structural diagram of an auxiliary head in one embodiment of the present disclosure;

[0036] Figure 12 This is a schematic structural diagram of the second light-transmitting member in one embodiment of the present disclosure;

[0037] Figure 13 This is a schematic diagram of the structure of a host in one embodiment of the present disclosure;

[0038] Figure 14 for Figure 13 Schematic cross-section of the middle DD;

[0039] Figure 15 for Figure 14 Enlarged schematic diagram of E;

[0040] Figure 16 This is a schematic diagram of a partial disassembly of a host in one embodiment of the present disclosure;

[0041] Figure 17 This is a schematic diagram of the structure of a host in one embodiment of the present disclosure;

[0042] Figure 18 This is a schematic structural diagram of a skin care device according to an embodiment of the present disclosure;

[0043] Figure 19 Schematic diagram of the composition of the electronic control system of the skin care device in one embodiment of the present disclosure;

[0044] Figure 20 Schematic diagram of the structure of a halogen lamp in one embodiment of the present disclosure;

[0045] Figure 21Schematic diagram of the structure of a halogen lamp in another embodiment of the present disclosure;

[0046] Figure 22 Schematic diagram of the structure of multiple halogen lamps in one embodiment of the present disclosure;

[0047] Figure 23 Schematic diagram of the structure of a halogen lamp and a reflector in one embodiment of the present disclosure;

[0048] Figure 24 Schematic diagram of the composition of the electronic control system of the skin care device in one embodiment of the present disclosure;

[0049] Figure 25 This is a schematic structural diagram of a skin care device according to an embodiment of the present disclosure;

[0050] Figure 26 for Figure 25 Schematic cross-section of the FF;

[0051] Figure 27 for Figure 25 Schematic cross-section of the middle GG;

[0052] Figure 28 for Figure 27 A magnified schematic diagram of H in the middle;

[0053] Figure 29 This is a partial structural diagram of a skin care device according to an embodiment of the present disclosure;

[0054] Figure 30 This is a partial structural diagram of an auxiliary head in one embodiment of the present disclosure;

[0055] Figure 31 Schematic diagram of the composition of the electronic control system of the skin care device in one embodiment of the present disclosure;

[0056] Figure 32 This is a partial structural diagram of a skin care device according to an embodiment of the present disclosure;

[0057] Figure 33 for Figure 32 A magnified schematic diagram of middle I;

[0058] Figure 34 This is a schematic structural diagram of a skin care device according to an embodiment of the present disclosure;

[0059] Figure 35 for Figure 34 a schematic side view of the skin care device shown;

[0060] Figure 36 for Figure 34 a schematic diagram of the skin care device from a rear perspective;

[0061] Figure 37 for Figure 34 a side view of the illustrated skin care device;

[0062] Figure 38 This is a schematic structural diagram of a skin care device according to an embodiment of the present disclosure;

[0063] Figure 39 for Figure 38 a side view of the illustrated skin care device;

[0064] Figure 40 A schematic side view of a housing in one embodiment of the present disclosure;

[0065] Figure 41 A schematic side view of a housing in one embodiment of the present disclosure;

[0066] Figure 42 A schematic side view of a housing in one embodiment of the present disclosure;

[0067] Figure 43 A schematic side view of a housing in one embodiment of the present disclosure;

[0068] Figure 44 A schematic side view of a housing in one embodiment of the present disclosure;

[0069] Figure 45 A schematic side view of a skin care device according to an embodiment of the present disclosure;

[0070] Figure 46 This is a schematic structural diagram of a skin care device according to an embodiment of the present disclosure;

[0071] Figure 47 for Figure 46 Schematic cross-section of the middle JJ;

[0072] Figure 48 for Figure 47 A magnified schematic diagram of K in the middle;

[0073] Figure 49 This is a schematic diagram of the installation of the refrigeration component and the first light-transmitting component in the prior art;

[0074] Figure 50 This is a partial structural diagram of a working head in one embodiment of the present disclosure;

[0075] Figure 51 for Figure 50 Schematic cross-section of the middle LL;

[0076] Figure 52 Schematic diagram of the installation of the refrigeration component and the first light-transmitting component in one embodiment of the present disclosure;

[0077] Figure 53This is a schematic diagram of the installation of a refrigeration component and a first light-transmitting component in another embodiment of the present disclosure;

[0078] Figure 54 This is a partial structural diagram of a housing in one embodiment of the present disclosure;

[0079] Figure 55 This is a schematic diagram of a partial disassembly of a housing in one embodiment of the present disclosure;

[0080] Figure 56 This is a schematic structural diagram of a skin care device according to an embodiment of the present disclosure;

[0081] Figure 57 is a cross-sectional schematic diagram of a skin care device according to an embodiment of the present disclosure;

[0082] Figure 58 for Figure 57 Enlarged schematic diagram of M in the middle;

[0083] Figure 59 This is a schematic structural diagram of a skin care device according to an embodiment of the present disclosure;

[0084] Figure 60 This is a schematic diagram of the connection between the radiator and the refrigeration element in one embodiment of the present disclosure;

[0085] Figure 61 This is a schematic diagram of the installation of an air guide member in one embodiment of the present disclosure;

[0086] Figure 62 This is a schematic diagram of the connection between the first windshield and the first connecting side portion in one embodiment of the present disclosure;

[0087] Figure 63 is a cross-sectional schematic diagram of a skin care device according to an embodiment of the present disclosure;

[0088] Figure 64 This is a partial structural diagram of a skin care device according to an embodiment of the present disclosure;

[0089] Figure 65 This is a partially disassembled schematic diagram of a skin care device according to an embodiment of the present disclosure;

[0090] Figure 66 This is a partially disassembled schematic diagram of a skin care device according to an embodiment of the present disclosure;

[0091] Figure 67 This is a schematic diagram of the installation of an air guide member in one embodiment of the present disclosure;

[0092] Figure 68 This is a schematic structural diagram of a second mounting frame in an embodiment of the present disclosure;

[0093] Figure 69This is a schematic diagram of the installation of an air guide member in one embodiment of the present disclosure;

[0094] Figure 70 Schematic diagram of the installation of a light emitting device in one embodiment of the present disclosure;

[0095] Figure 71 This is a schematic diagram of the installation of a radiator in one embodiment of the present disclosure;

[0096] Figure 72 This is a schematic structural diagram of a control device in one embodiment of the present disclosure;

[0097] Figure 73 This is a structural diagram of a radiator in one embodiment of the present disclosure;

[0098] Figure 74 This is a structural diagram of a fan in one embodiment of the present disclosure;

[0099] The realization of the objectives, functional features and advantages of the present disclosure will be further explained with reference to the accompanying drawings in conjunction with the embodiments. DETAILED DESCRIPTION

[0100] The following will be combined with the accompanying drawings in the embodiments of the present disclosure to clearly and completely describe the solutions in the embodiments of the present disclosure. Obviously, the embodiments described are only part of the embodiments of the present disclosure, not all of the embodiments. Based on the embodiments of the present disclosure, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of this disclosure.

[0101] It should be noted that all directional indications in the embodiments of the present disclosure (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0102] It should also be noted that when an element is referred to as being "fixed on" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or there may be an intermediate element.

[0103] In addition, the descriptions of "first", "second", etc. in this disclosure are for descriptive purposes only and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between the various embodiments can be combined with each other, but this must be based on the fact that ordinary technicians in this field can implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by this disclosure.

[0104] The skin care device provided in the embodiment of the present application is mainly used for caring for the skin, which may be the skin on the face, the hands, the legs, the abdomen, or other parts of the human body.

[0105] Skin care devices include, but are not limited to, phototherapy skin care devices, microcurrent skin care devices 100, and radiofrequency current skin care devices. Phototherapy skin care devices primarily utilize light of specific wavelengths, such as intense pulsed light and lasers, to improve skin problems. These rays can penetrate the skin's surface, reaching varying depths and affecting pigments, blood vessels, collagen, and other components within the skin.

[0106] Please refer to Figures 1 to 7 The present disclosure provides a skin care device 100, comprising a main unit 10 and an accessory head 20. The main unit 10 includes a housing 11, a first light-transmitting member 12, a light-emitting device 13, a first electrode 14, and a main control circuit board 70. The housing 11 defines an inner cavity 111 and a working head 112. The working head 112 defines a first opening 1121 communicating with the inner cavity 111. The first light-transmitting member 12 is mounted in the first opening 1121. The light-emitting device 13 is disposed in the inner cavity 111 and radiates light toward the first light-transmitting member 12, thereby providing skin care through the first light-transmitting member 12. The first electrode 14 is at least partially exposed to the working head 112 for outputting microcurrent and / or radiofrequency current to the skin. The main control circuit board 70 is electrically connected to the first electrode 14 and is configured to control the first electrode 14 to generate microcurrent and / or radiofrequency current.

[0107] In this embodiment, the housing 11 of the skin care device 100 is primarily used for user gripping and provides a mounting location for other components. To facilitate gripping, the housing 11 can be designed into an ergonomic shape, such as a streamlined shape or a handle with a non-slip design, to enhance grip comfort and stability.

[0108] The material of the housing 11 can be selected based on different needs. For example, to reduce the overall weight, a lightweight, high-strength material such as carbon fiber or aluminum alloy can be used. Considering the user's comfort when holding, the surface of the housing 11 can be made of a soft-touch material such as silicone or polyurethane coating. These materials not only provide a soft touch, but also can increase the anti-slip effect through surface treatment processes (such as spraying, plating, or rubber coating), thereby improving the user experience of the device.

[0109] In one embodiment, the skin care device 100 is a beauty instrument. The light-emitting device 13 includes at least one halogen lamp 131. The halogen lamp 131 is configured to transmit near-infrared light with a wavelength of 630-1940 nm through the first light-transmitting member 12 to the skin. When this near-infrared light acts on the skin, it can promote ATP production in the skin and act on mitochondria or fibroblasts, causing the extracellular matrix to fission more collagen, forming a collagen network. This can promote collagen production and enhance skin thickness. Furthermore, it can promote the proliferation of keratinocytes, accelerate keratin formation, and restore the skin barrier.

[0110] In addition, the light emitting device 13 can also use light sources such as IPL lamps, and different wavelengths of light can be selected according to specific care needs, which is not limited in the embodiments of the present application.

[0111] Please refer to Figures 1 to 4 The accessory head 20 is detachably connected to the working head 112 of the main unit 10. The accessory head 20 includes a cover 21, a second light-transmitting member 22, and a second electrode 23. The cover 21 is provided with a second opening 2111. The second light-transmitting member 22 is installed in the second opening 2111. The second light-transmitting member 22 is used to face the first light-transmitting member 12 when the accessory head 20 is connected to the main unit 10, so that the light emitted by the light-emitting device 13 sequentially passes through the first light-transmitting member 12 and the second light-transmitting member 22 and then irradiates the skin. The second electrode 23 is at least partially exposed outside the cover 21. The second electrode 23 is used to electrically connect to the first electrode 14 after the accessory head 20 is installed on the main unit 10 to output microcurrent and / or radiofrequency current to the skin.

[0112] Among them, the first light-transmitting member 12 has a first light-emitting surface 121 facing away from the light-emitting device 13, the first electrode 14 has a first surface 141 exposed outside the working head 112 for contact with the skin, the second light-transmitting member 22 has a second light-emitting surface 221 facing away from the light-emitting device 13, and the second electrode 23 has a second surface 231 exposed outside the cover body 21 for contact with the skin. The sum of the areas of the first light-emitting surface 121 and the first surface 141 is greater than the sum of the areas of the second light-emitting surface 221 and the second surface 231.

[0113] Among them, the sum of the areas of the first light-emitting surface 121 and the first surface 141 is greater than the sum of the areas of the second light-emitting surface 221 and the second surface 231, which may include: the area of ​​the first light-emitting surface 121 is greater than the area of ​​the second light-emitting surface 221; and / or, the area of ​​the first surface 141 is greater than the area of ​​the second surface 231. The setting can be selected according to actual conditions, as long as the sum of the areas of the first light-emitting surface 121 and the first surface 141 is different from the sum of the areas of the second light-emitting surface 221 and the second surface 231. This application does not limit this.

[0114] With this arrangement, the user can attach or remove the accessory head 20 from the main unit 10 to meet the skin care needs of skin areas of different sizes. For example, the large facial skin and the small eye or nose skin can be cared for separately by removing or attaching the accessory head 20 from the main unit 10 to meet the skin care needs of different body parts or different area sizes.

[0115] In this embodiment, the auxiliary head 20 is detachably connected to the working head 112 through the cover body 21. There are various ways of detachable connection. For example, the connection part of the cover body 21 and the working head 112 is set to a threaded structure, and the cover body 21 is tightened to the working head 112 by rotation to form a stable connection. The disassembly can be completed by reverse rotation. The operation is simple and the connection is firm. Alternatively, a socket is set on the side wall of the cavity 213, and a pin is set at the corresponding part of the working head 112. A stable connection is formed by the cooperation of the pin and the socket. The structure is simple and the cost is low. The cover body 21 and the working head 112 can also be connected by a reusable adhesive material, such as Velcro, which is more convenient to use.

[0116] The technical solution disclosed in the present invention enables the user to adjust the function of the skin care device 100 by installing the accessory head 20 through the detachable connection between the accessory head 20 and the working head 112, so that the skin care device 100 can provide targeted care for the skin of different parts, while reducing the manpower and material costs of the user to purchase and carry multiple skin care devices 100.

[0117] During skin care, the skin around the eyes and the T-zone near the nose is more likely to develop wrinkles or enlarged pores, so there is a high demand for skin care around the eyes and the T-zone near the nose. However, since the eyes and nose are often uneven, the skin care devices in the prior art are often flat and cannot fit well on uneven parts such as the eyes and nose. Therefore, the prior art often cannot provide good care for the skin in uneven areas such as the eyes and nose.

[0118] In the present disclosure, since the sum of the areas of the first light-emitting surface and the first surface is greater than the sum of the areas of the second light-emitting surface and the second surface, the main unit has a larger contact area with the skin, and is suitable for treating relatively flat areas of the skin, such as cheeks, foreheads, etc., and using the main unit for European clothing care can be more efficient and uniform. However, the area of ​​the auxiliary head 20 acting on the skin is smaller than the area of ​​the main unit acting on the skin. The design of the auxiliary head of the present disclosure can be extended into the depression near the eyes or nose, and can move along the uneven shape of the eyes or nose, and can fit well with uneven parts such as the eyes or nose. Therefore, when the auxiliary head is used in the present disclosure, care is provided for uneven parts such as the eyes or nose, and when the main unit is used, care is provided for flat parts such as the cheeks, forehead, or chin.

[0119] Therefore, when using the skin care device 100 of the present disclosure for skin care, the auxiliary head or the main unit can be selected according to the characteristics of different skin areas, so that every detail of the skin can be taken care of more comprehensively and meticulously, thereby achieving better care effects.

[0120] In some embodiments, please refer to Figure 4 and Figure 11 The cover body 21 of the auxiliary head 20 includes a first end face 210, a second end face 211 spaced apart from the first end face 210, and a peripheral side portion 212 connected between the first end face 210 and the second end face 211. The peripheral edge of the peripheral side portion 212 gradually expands along the direction extending from the first end face 210 to the second end face 211. The first end face 210 and the peripheral side portion 212 form a concave cavity 213, and the concave cavity 213 is used for the cover body 21 to cover the working head 112 of the main machine 10.

[0121] When the accessory head 20 is mounted on the main unit 10, the cover 21 covers the working head 112, and the skin care device 100 then performs skin care through the accessory head 20. The accessory head 20 of the present disclosure is detachably connected to the working head 112 via the cover 21. When the user needs to use the accessory head 20 for skin care, the accessory head 20 can be directly mounted on the working head 112, and the skin can be treated using the second electrode 23 and the second light-emitting surface 221 on the accessory head 20. When the user no longer needs to use the accessory head 20 or needs to directly use the working head 112 on the skin care device 100 for skin care, the accessory head 20 can be removed from the main unit 10.

[0122] Among them, the size and shape of the first end surface 210 are related to the function that the accessory head 20 needs to achieve. If the accessory head 20 acts on a smaller skin area, such as the arm, forehead, etc., the area of ​​the first end surface 210 is usually smaller, and can be set to a curved surface with a certain curvature according to different parts; correspondingly, if the accessory head 20 acts on a larger skin area, such as the thigh, cheek, etc., the area of ​​the first end surface 210 can be expanded.

[0123] The second end surface 211 can be configured as an annular surface, so that the cover body 21 encloses a cavity 213 with an opening, so that at least part of the working head 112 can be accommodated in the cavity 213, thereby completing the fixation between the auxiliary head 20 and the working head 112.

[0124] Of course, the shapes of the second end face 211 and the cavity 213 can be customized according to design requirements. For example, by controlling the thickness of the peripheral side portion 212 at various locations, the sidewalls of the cavity 213 can be aligned with the outer surface of the working head 112, thereby improving the stability of the accessory head 20 after installation. The peripheral side portion 212 of the cover body 21 extends from the first end face 210 to the second end face 211 with a gradually expanding perimeter. In other words, the cover body 21 has an overall stepped shape that is narrow at the top and wide at the bottom. It can be a truncated cone or prism with a regular outer contour, or other irregular shapes. Because the annular second end face 211 encloses a larger area, and therefore the opening of the cavity 213 is larger, the user can more easily install the accessory head 20 on the skin care device. The smaller first end face 210 also makes it easier for the user to care for smaller areas of skin. At the same time, the main unit 10 extends into the auxiliary head 20 a greater distance, and the distance between the light-emitting device 13 on the main unit 10 and the second light-transmitting member 22 on the auxiliary head 20 is smaller, so the light loss when the light-emitting device 13 on the main unit 10 is irradiated to the skin through the second light-transmitting member 22 on the auxiliary head 20 is smaller.

[0125] In some embodiments, the second electrodes 23 are spaced apart from each other on the first end surface 210 , and the outer edge of the first end surface 210 is a polygon with more than four sides.

[0126] Since the second electrodes 23 are typically arranged symmetrically on the first end surface 210, the outer edge of the first end surface 210 is configured as a polygon. This facilitates the positioning and installation of the second electrodes 23, allowing the current generated by the two corresponding second electrodes 23 in contact with the skin to pass through and stimulate the skin, thus providing skin care. Furthermore, the polygonal outer edge of the first end surface 210 also facilitates the installation of second electrodes 23 having polygonal outer edges. That is, the opposing sides between the two opposing second electrodes 23 are straight lines. This not only makes the arrangement of the second electrodes 23 more compact, but also facilitates the generation of a regular current, ensuring a cosmetic effect.

[0127] Furthermore, multiple edges can be extended from the vertex of the first end face 210, so that the outer surface of the cover body 21 is divided into multiple faces, which can not only facilitate the placement of the accessory head 20, but also provide greater friction for the user to hold. At the same time, the user can more easily adjust the direction and angle of the accessory head 20 for more precise care.

[0128] like Figure 4 and Figure 10 As shown, in some embodiments, the circumferential side portion 212 includes a first ring portion 2120 and a second ring portion 2121 connected in sequence. The first ring portion 2120 includes a plurality of first side surfaces 2122 connected in sequence along the circumferential direction. The second ring portion 2121 includes a plurality of second side surfaces 2123 connected in sequence along the circumferential direction and corresponding to the first side surfaces 2122. One end of each first side surface 2122 is respectively connected to one end of a corresponding second side surface 2123, and the other end of the first side surface 2122 is respectively connected to an edge of the first end surface 210.

[0129] The first side surface 2122 is an oblique plane or a curved surface extending from the first end surface 210 to the second side surface 2123 , and the second side surface 2123 is an oblique plane or a curved surface extending from the first side surface 2122 to the edge of the second end surface 211 .

[0130] The peripheral side portion 212 of the accessory head 20 is designed with a gradient. This means that through the segmented design of the first ring portion 2120 and the second ring portion 2121, the center of gravity distribution of the accessory head 20 can be controlled by controlling the extended lengths of the first and second ring portions 2120, 2121, thereby improving the stability of the accessory head 20. This also allows the accessory head 20 to be configured into a shape that is easier for the user to grip, enhancing the user experience. Furthermore, the first and second ring portions 2120, 2121 divide the cover 21 into distinct areas, facilitating the planning of the installation locations for components with different functions on the accessory head 20. For example, the first ring portion 2120 is used to mount the second electrode 23 and the second light-transmitting member 22, while the second ring portion 2121 is used to mount the connecting assembly to the working head 112. This makes the structural design of the accessory head 20 more rational and compact.

[0131] The first and second ring portions 2120, 2121 also provide a smoother transition in the shape of the accessory head 20 from the first end face 210 to the second end face 211, helping to reduce stress concentration and prevent breakage or wear due to impact during use, thereby extending the service life of the accessory head 20. Furthermore, the gradient design gives the accessory head 20 a more layered appearance, a three-dimensional feel, and an aesthetically pleasing aesthetic, enhancing the product's visual appeal.

[0132] If the first side surface 2122 and the second side surface 2123 are inclined planes, the vertical distance between the first end surface 210 and the second end surface 211, as well as the size of the concave cavity 213, can be adjusted by controlling the slope, thereby simplifying the design and manufacture of the cover body 21. If the first side surface 2122 and the second side surface 2123 are curved surfaces, wear and stress concentration on the cover body 21 can be reduced, further extending the service life of the accessory head 20. It is understood that the first side surface 2122 and the second side surface 2123 can both be curved surfaces, both be flat surfaces, or one be curved and the other be flat, depending on actual needs, and this disclosure is not limited thereto.

[0133] like Figure 4 、 Figure 8 and Figure 9 As shown, in some embodiments, the first side surface 2122 is a curved surface that is recessed from the edge of the second side surface 2123 and the first end surface 210 toward the middle of the first side surface 2122; and / or, the second side surface 2123 is a curved surface that is recessed from the opposite sides connecting the second side surface 2123 and the second end surface 211 toward the middle of the second side surface 2123.

[0134] The concave surface fits the user's fingers better when gripping, allowing the user to more conveniently grasp the accessory head 20, improving the user experience. The curved surface also more easily disperses stress during impact, largely preventing damage to the cover 21. Furthermore, the concave surface takes up less space and is more aesthetically pleasing. It will be appreciated that the degree of inward concavity of the first side surface 2122 and the second side surface 2123 can be set based on actual needs. A shallow concavity may not provide a significant gripping effect, while a deep concavity may affect the strength of the cover 21 at the concave portion. Therefore, taking the first side surface 2122 as an example, this embodiment further sets the thickness of the thinnest portion of the first side surface 2122 to be greater than half the thickness of the thickest portion of the first side surface 2122.

[0135] like Figure 8 and Figure 10 As shown, in some embodiments, the periphery of the first ring portion 2120 gradually expands along the extension direction of the first end face 210 to the second ring portion 2121, the periphery of the second ring portion 2121 gradually expands along the extension direction of the first ring portion 2120 to the second end face 211, and the slope of the inner wall of the first ring portion 2120 is greater than the slope of the inner wall of the second ring portion 2121.

[0136] Since the slope of the inner wall of the first ring portion 2120 is relatively large, the first ring portion 2120 can enclose a larger cavity, which is convenient for installing components such as the second electrode 23 and the second light-transmitting member 22, and at the same time, the center of gravity of the cover body 21 is biased toward the first end face 210, which helps to increase the overall stability of the accessory head 20; the slope of the inner wall of the second ring portion 2121 is relatively small, so that the second ring portion 2121 will not increase the space occupied by the cover body 21 too quickly while further providing support, thereby improving the portability of the accessory head 20.

[0137] like Figure 4 and Figure 11 As shown, in some embodiments, a plurality of protrusions 2110 are provided on the second end face 211, and the plurality of protrusions 2110 are used for snap connection with the working head 112; and / or, a magnetic attraction part 2130 is provided in the concave cavity 213, and the magnetic attraction part 2130 is used for magnetic connection with the working head 112.

[0138] The buckle 2110 and the magnetic element 2130 each play different connecting roles, ensuring that the accessory head 20 can be securely mounted on the working head 112. The buckle 2110 is a mechanical snap-on connector that can be made of plastic or metal. For example, in this embodiment, one end of the buckle 2110 is disposed on the second end face 211, and the other end of the buckle 2110 is provided with a hook portion extending toward the concave cavity 213. When the accessory head 20 is connected to the working head 112 of the skin care device 100, the protruding hook portion can engage with a corresponding slot or hole on the skin care device 100, thereby fixing the relative position between the accessory head 20 and the skin care device 100.

[0139] It is understandable that there are many ways to connect the protruding buckle 2110 and the first end face 210, which can be welding, bonding or threaded connection, or integral molding, and the embodiment of the present disclosure does not limit this.

[0140] Preferably, there are multiple protruding buckles 2110 , and the multiple protruding buckles 2110 are symmetrically arranged on the second end surface 211 , thereby improving the connection strength between the auxiliary head 20 and the working head 112 .

[0141] The magnetic member 2130 is a magnet that provides magnetism or an object that can be attracted by a magnet. Accordingly, a structure that can attract the magnetic member 2130 is correspondingly provided on the working head 112, so as to provide sufficient attraction when the auxiliary head 20 is installed on the working head 112. The number of magnetic members 2130 and the location of the arrangement can be selected according to actual needs. For example, in this embodiment, there are multiple magnetic members 2130, and multiple magnetic members 2130 are evenly arranged around the first ring portion 2120 to connect with the top of the working head 112. This can not only improve the stability of the connection, but also eliminate the need to connect the auxiliary head 20 and the working head 112 at a fixed angle, thereby simplifying the installation steps of the auxiliary head 20. Of course, the magnetic member 2130 can also be provided on the second ring portion 2121. In this case, the magnetic member 2130 is usually connected to the side of the working head 112.

[0142] It is understandable that the convex buckle 2110 and the magnetic component 2130 can be provided at the same time, or only one of them can be provided, and the choice can be made according to actual needs.

[0143] In some embodiments, the second opening 2111 can be designed to be circular, elliptical, polygonal, or other irregular shapes, depending on the light distribution requirements. Preferably, the second opening 2111 is located in the middle of the first end surface 210 to ensure that light can directly penetrate the target skin area, thereby improving user convenience.

[0144] The second light-transmitting member 22 is made of a crystalline material, specifically sapphire, K9 glass, crystal glass, or other materials that meet the requirements of light-transmitting crystals, with sapphire being an option. The shape and size of the second light-transmitting member 22 are determined based on the second opening 2111. The second light-transmitting member 22 is typically embedded within the second opening 2111 and is tightly coupled to the second opening 2111 via bonding or an interference fit, preventing the second light-transmitting member 22 from loosening or shifting.

[0145] During specific use, the accessory head 20 is installed on the main unit 10, and then the light-emitting device 13 in the main unit 10 is controlled to emit light, so that the light passes through the second opening 2111 and the second light-transmitting member 22 in the second opening 2111, and then is emitted from the second light-emitting surface 221 and irradiates the user's skin, thereby achieving skin care.

[0146] like Figure 12 As shown, in some embodiments, the second light-transmitting member 22 further has a second light-incident surface 222 facing away from the second light-emitting surface 221 , and a plurality of grooves 223 distributed in a honeycomb pattern are provided on the second light-incident surface 222 .

[0147] Among them, the honeycomb-shaped distribution of grooves 223 refers to a plurality of hexagonal grooves 223 distributed in a tightly packed manner on the second light incident surface 222 of the second light-transmitting member 22, and each groove 223 shares an edge with the surrounding grooves 223 to form a honeycomb-like arrangement structure. The size and depth of the grooves 223 can be adjusted according to specific needs. Usually, the diameter of the grooves 223 is small to ensure that each groove 223 can effectively capture and guide light, so that the light becomes more uniform when passing through the second light-transmitting member 22. The depth of the grooves 223 can be designed according to the refraction and reflection requirements of the light, thereby optimizing the transmission effect of the light. Specifically, when the light-emitting device 13 emits light to the grooves 223, the hexagonal structure of the honeycomb-shaped distribution of grooves 223 guides the light to the second light-emitting surface 221 of the second light-transmitting member 22, thereby concentrating the light, increasing the intensity and penetration of the light, and thus improving the cosmetic effect.

[0148] like Figure 10 As shown, in some embodiments, a mounting plate 2101 is provided on the first end surface 210, and a plurality of spaced mounting grooves 2102 are formed on a side of the mounting plate 2101 facing away from the first end surface 210, and the second electrodes 23 are provided in the mounting grooves 2102, so that when in use, at least a portion of the plurality of second electrodes 23 can contact the skin and output microcurrent and / or radiofrequency current to care for the skin.

[0149] The mounting plate 2101 is disposed on the first end surface 210 to facilitate skin contact between the second electrode 23 disposed on the mounting plate 2101. The shape of the mounting plate 2101 can be set according to the design of the first end surface 210 to cover the skin contact area required by the second electrode 23.

[0150] The mounting plate 2101 can be fixed to the first end surface 210 by a non-detachable method such as bolting or bonding, which provides a more secure and stable connection. Alternatively, the mounting plate 2101 can be fixed to the first end surface 210 by a detachable method such as magnetic connection or slot-type connection, which facilitates replacement or cleaning. In this embodiment, the mounting plate 2101 provides a smooth surface, ensuring that the second electrode 23 can evenly contact the skin, thereby avoiding discomfort caused by uneven current distribution.

[0151] The number and size of the mounting slots 2102 on the mounting plate 2101 generally match the number and size of the second electrodes 23, with each second electrode 23 corresponding to a mounting slot 2102. Preferably, the mounting slots 2102 are evenly distributed on the mounting plate 2101 to ensure that the second electrodes 23 can provide a uniform current output, thereby improving the cosmetic effect.

[0152] Furthermore, in this embodiment, four mounting slots 2102 are provided, and the four mounting slots 2102 are spaced apart and arranged around the second opening 2111. This prevents the second electrode 23 from affecting the light exiting the second opening 2111, while also ensuring that the current output by the second electrodes 23 is more uniform and less likely to interfere with each other. The second electrode 23 can be secured within the mounting slot 2102 by snapping, bonding, or threading, which is not limited in this disclosure. The second electrode 23 is secured by the mounting slot 2102, ensuring that it is not easily displaced or removed during use, thereby ensuring the continuity and stability of skin care.

[0153] like Figure 9 and Figure 10 As shown, in some embodiments, the auxiliary head 20 further includes an LED light strip 25, which is disposed in the concave cavity 213, and the LED light strip 25 is used to form an aperture on the second light-transmitting member 22 to indicate the working status of the auxiliary head 20; and / or, the auxiliary head 20 further includes a control circuit board 28, which is disposed in the concave cavity 213, and the plurality of second electrodes 23 are respectively electrically connected to the control circuit board 28.

[0154] The LED light strip 25 is disposed within the recessed cavity 213 of the accessory head 20. This concealed installation not only protects the LED light strip 25 from external environmental influences but also enhances the aesthetics of the accessory head 20. For example, during use, after the accessory head 20 is mounted on the working head 112, the light emitting device 13 is controlled to emit light that passes through the second light-transmitting member 22. Because this light is difficult to observe with the naked eye, the LED light strip 25 is activated along with the light emitting device 13. The light emitted by the LED light strip 25 can now be observed by the user, allowing the user to clearly understand that the skin care device 100 is in the on state, thereby enhancing the user's experience.

[0155] Preferably, the LED light strip 25 can be designed to be monochrome or multi-color, so that the skin care device 100 can indicate different working states or modes through different light colors and brightness, such as power on, working, standby, charging or fault, etc. The intuitive visual feedback provided by the LED light strip 25 helps the user understand the status of the skin care device 100 in real time, thereby improving the convenience of use.

[0156] Furthermore, the LED light strip 25 can be arranged around the second light-transmitting member 22, so that the light emitted by the LED light strip 25 is evenly scattered on the second light-transmitting member 22, forming a clear aperture, thereby improving the visual prompt effect.

[0157] The second electrode 23 on the accessory head 20 is connected to a control circuit board 28. This allows the control circuit board 28 to control the intensity and frequency of the microcurrent and / or radiofrequency current output by the second electrode 23, achieving precise current regulation to ensure that the current output by the second electrode 23 meets the skin care requirements, thereby achieving a stable and effective skin care effect. It will be understood that when the accessory head 20 is installed on the working head 112, the control circuit board 28 is electrically connected to the main unit 10, thereby enabling the main unit 10 to control the second electrode 23 on the accessory head 20.

[0158] like Figure 3 and Figure 5 As shown, in some embodiments, the auxiliary head 20 also includes a transparent glass piece 27, and a mounting hole 261 is opened on the control circuit board 28. The transparent glass piece 27 is installed in the mounting hole 261 and covers the mounting hole 261. The transparent glass piece 27 and the inner wall of the peripheral side portion 212, the second light-transmitting piece 22, and the control circuit board 28 enclose a first sealed cavity 2131, and the LED light strip 25 is located in the first sealed cavity 2131.

[0159] The mounting hole 261 on the control circuit board 28 can be mounted with a transparent glass member 27 to facilitate the passage of light emitted by the skin care device 100. Furthermore, a transparent glass member 27 is disposed over the mounting hole 261 to seal the mounting hole 261 and enclose a first sealed cavity 2131. This allows the LED light strip 25 to be housed within the first sealed cavity 2131, preventing dust, moisture, or other impurities from entering the first sealed cavity 2131 and protecting the internal electronic components and the LED light strip 25. The transparent glass member 27 can be disposed within the mounting hole 261 and bonded or interference-fitted therewith, or it can be disposed over the mounting hole 261, although this disclosure is not limited thereto.

[0160] like Figure 1 and Figure 9 As shown, in some embodiments, the auxiliary head 20 also includes a magnetic component 2130, and a through hole is provided on the control circuit board 28. The magnetic component 2130 is passed through the through hole, and a limiting groove 2120b is constructed on the inner wall of the first ring portion 2120. One end of the magnetic component 2130 is accommodated in the limiting groove 2120b, and the other end of the magnetic component 2130 protrudes from the control circuit board 28 for magnetic connection to the host 10.

[0161] The magnetic member 2130 is disposed through the control circuit board 28 to avoid the magnetic member 2130 occupying too much space, thereby making the structure inside the cavity 213 more compact. The magnetic component 2130 is set on the first ring portion 2120, with the first end face 210 as the reference plane. The slope of the inner wall of the first ring portion 2120 is smaller, and the working surface of the host 10 is usually parallel to the first end face 210. Therefore, when the auxiliary head 20 is installed on the host 10, the angle between the magnetic component 2130 set on the first ring portion 2120 and the working surface of the host 10 is smaller, the magnetic component 2130 is easier to connect with the working surface of the host 10, and the magnetic force generated is more uniform, so that the connection between the auxiliary head 20 and the working surface of the host 10 is tighter; and since the working surface of the host 10 is usually flat, even if the installation position of the auxiliary head 20 deviates slightly, it will not affect the connection between the magnetic component 2130 and the host 10, nor will it cause too much impact on the normal use of the auxiliary head 20, reducing the difficulty of the user in installing the auxiliary head 20 on the host 10, thereby improving the user experience.

[0162] In order to make the magnetic component 2130 more firmly arranged on the first ring portion 2120, a limiting groove 2120b is constructed on the inner wall of the first ring portion 2120 to limit and fix the magnetic component 2130, so as to prevent the magnetic component 2130 from being offset under the action of external force, thereby damaging the control circuit board 28 or affecting the connection effect with the host 10. At the same time, the setting of the limiting groove 2120b also facilitates the installation of the magnetic component 2130.

[0163] like Figure 8 、 Figure 9 ,and Figure 11 As shown, in some embodiments, a slide groove 2124 is constructed on the inner wall of the second ring portion 2121, and a detection component 2125 is arranged in the slide groove 2124, and the detection component 2125 is used to detect whether the auxiliary head 20 is installed on the working head 112; and / or, a plurality of second electrodes 23 are spaced apart and distributed around the periphery of the second opening 2111.

[0164] The detection component 2125 is installed on the second ring portion 2121 and isolated outside the first sealed cavity 2131, which can prevent the detection effect from being affected by the components in the first sealed cavity 2131. At the same time, it prevents the detection component 2125 from occupying the space in the first sealed cavity 2131, preventing it from blocking the light emitted by the light-emitting device 13 and affecting the beauty effect.

[0165] It is understandable that there are multiple types of detection components 2125. It can be a photoelectric sensor, which can determine whether the auxiliary head 20 is connected to the working head 112 when a change in the light path is detected; it can also be a pressure sensor, which determines whether the auxiliary head 20 is connected to the working head 112 by detecting whether the pressure applied by the working head 112; it can also be other structures that can detect whether the auxiliary head 20 and the working head 112 are installed in place, and this application does not impose any restrictions on this.

[0166] The chute 2124 is used to accommodate the detection component 2125 and is typically composed of two spaced-apart plates and the sidewall of the second ring portion 2121, allowing the detection assembly to be installed in a suitable position. The chute 2124 and the detection component 2125 can be fixedly connected by bonding or interference fit, making the connection between the chute 2124 and the detection component 2125 more stable.

[0167] The accessory head 20 cannot be used alone, and the main unit 10 can be used alone or in combination with the accessory head 20. It should be noted that the following content only describes the structure of the main unit 10 and does not limit the structure of the accessory head 20. The structure of the main unit 10 is as follows (that is, the structure of the skin care device 100 is as follows), which can be used in two situations: using only the main unit 10 and the main unit 10 + the accessory head 20. When the accessory head 20 is not used, the main unit 10 is used as the skin care device 100, and the main unit 10 is the skin care device 100. When the accessory head 20 is used, the main unit 10 combined with the accessory head 20 is the skin care device 100.

[0168] In some embodiments, the first electrode 14 is disposed at one end of the housing 11 having the first opening 1121, and the first electrode 14 is at least partially exposed to the housing 11. The first electrode 14 is distributed around the periphery of the first light-transmitting element 12 for outputting microcurrent and / or radiofrequency current to the skin.

[0169] In this embodiment, the first electrode 14 can output microcurrent to the skin. Microcurrent can stimulate muscle fiber contraction, increase muscle tension, and enhance muscle strength and firmness. At the same time, current stimulation of the dermis will also promote cells to produce more adenosine triphosphate (ATP), and ATP is a key substance for collagen production. Therefore, microcurrent massage of the skin can accelerate the production of collagen, thereby achieving the effect of firming, lifting and slimming the face.

[0170] In this embodiment, the first electrode 14 can output radio frequency current to the skin. The thermoelectric effect of the radio frequency current heats the skin to intensify the irregular movement of the active ingredients in the beauty product and forms aqueous channels in the stratum corneum, thereby promoting the skin's absorption of the beauty product or medical product.

[0171] It should be noted that the microcurrent output by the first electrode 14 is an alternating current greater than 0uA and less than or equal to 1000uA. Microcurrent is a current at the microampere (i.e., uA) level, which is close to the natural bioelectricity of the human body. The safe limit of current acceptable to the human body is 50mA, and the microcurrent of the skin care device 100 provided in this embodiment is far lower than the limit required by the safety standard, fully ensuring the safety and reliability of the product; the frequency of the radio frequency current is 300K-300MHz, which will generate heat when passing through the skin tissue. The heat causes the collagen in the dermis to denature and shrink. The natural wound healing reaction will trigger the formation of new collagen and further skin contraction, which will have a tightening and lifting effect on the skin.

[0172] It should be noted that the first electrode 14 is at least partially exposed to the shell 11, which may include a situation where the first electrode 14 is protruding from the shell 11, a situation where the first electrode 14 is flush with the surface of the shell 11, or a situation where the first electrode 14 is recessed at a certain distance from the surface of the shell 11. The purpose is to enable the first electrode 14 to output microcurrent and / or radiofrequency current to the skin during the process of the first electrode 14 contacting the skin.

[0173] It should be understood that the arrangement of the second electrode 23 on the cover 21 may be the same as the arrangement of the first electrode 14 on the housing 11 , which will not be described in detail in this application.

[0174] In order to effectively conduct the light emitted by the light-emitting device 13 and transfer the light energy from the light source to the skin surface, it is necessary to set a first light-transmitting member 12 on the working head 112 for light guidance. The output of microcurrent and radio frequency current requires the design of multiple first electrodes 14 on the working head 112. If the distribution of the first electrode 14 and the first light-transmitting member 12 is unreasonable, the total effective working area of ​​the first light-transmitting member 12 and the first electrode 14 will be reduced. Therefore, in this embodiment, the distribution method of the first light-transmitting member 12 and the multiple first electrodes 14 is improved.

[0175] Please refer to Figure 2 and Figure 13 In some embodiments, the first light emitting surface 121 is polygonal, and / or the number of sides of the first light emitting surface 121 is greater than four; the second light emitting surface 221 is polygonal, and the number of sides of the second light emitting surface 221 is greater than four.

[0176] The polygonal designs of the first light emitting surface 121 and the second light emitting surface 221 are the same, and the following description will be made taking the first light emitting surface 121 as an example.

[0177] The polygonal design of the first light-emitting surface 121 increases the light-emitting area, extending the light energy coverage to a wider area, thereby improving the treatment effect. Furthermore, compared to circular or curved designs, the polygonal design of the first light-emitting surface 121 offers significant advantages when treating uneven areas such as the nose and the corners of the eyes. The polygonal design, with its multiple corners, allows for more precise treatment, making it easier to reach these uneven areas. Therefore, the polygonal first light-emitting surface 121 offers greater flexibility and improved results when treating detailed areas.

[0178] Furthermore, if the first light-emitting surface 121 is circular or arc-shaped, and the first electrodes 14 are arranged around the first light-transmitting member 12, the shapes of the multiple first electrodes 14 may also be circular or arc-shaped (if they are not arc-shaped or circular, there will be more blank areas between the first electrodes 14 and the first light-emitting surface 121). This layout may reduce the conduction efficiency of the first electrodes 14 and make the current path unstable, which is not conducive to the conduction and operation of the first electrodes 14.

[0179] For example, if two opposing first electrodes 14 are curved along the edge of the first light-emitting surface 121, the curvature of the current conduction path between the two curved electrodes will be disrupted. Specifically, current tends to conduct along the shortest straight path, and the curvature of the curved first light-emitting surface 121 may cause the current conduction path to become longer or more inconsistent, thereby increasing resistance and reducing current conduction efficiency. This obstruction can affect the overall performance of the electrodes, leading to uneven current distribution and, consequently, the effectiveness of cosmetic treatments.

[0180] In this embodiment, the edges of the first light-emitting surface 121 are polygonal. Therefore, the first electrodes 14 can be positioned on relatively straight edges of the polygonal first light-transmitting member 12, making the current transmission path more direct and efficient. Compared to first electrodes 14 with curved or circular edges, a straight shortest path can be formed between first electrodes 14 with opposing straight edges. This linear current path reduces resistance during current conduction, allowing current to be transmitted quickly with minimal loss.

[0181] In this embodiment, the first light-transmitting member 12 can be made of sapphire. Sapphire is widely used in high-end optical devices due to its high light transmittance, high-temperature resistance, and wear resistance. It effectively conducts light and maintains excellent stability during extended use, preventing deformation or damage due to heat accumulation. Furthermore, sapphire's high hardness makes it highly resistant to external physical damage, extending the life of the device.

[0182] The light-emitting device 13 is disposed within the housing 11 and radiates light toward the first light-transmitting member 12, thereby providing skin care through the first light-transmitting member 12. The light-emitting device 13 can utilize various light sources, such as LEDs, halogen lamps, or xenon lamps. These light sources can achieve different cosmetic effects depending on their wavelength and intensity.

[0183] Specifically, LED lights have the advantages of long life and low energy consumption, and are often used for general beauty treatments such as whitening, freckle removal, and wrinkle reduction. Different wavelengths of LED light can target different skin concerns. For example, blue light can be used to kill bacteria and reduce inflammation, while red light can help promote collagen production.

[0184] Halogen lamps, on the other hand, have high luminous intensity and are suitable for deep skin care, such as wrinkle removal and skin tightening. The broad spectrum of light they emit can effectively penetrate the surface of the skin and stimulate deep tissues.

[0185] Xenon lamps, with their high brightness and strong penetrating power, are commonly used in beauty treatments such as photorejuvenation. They produce intense pulsed light, which has a significant effect on skin problems such as pigmentation and capillary dilation.

[0186] In addition, different wavelengths of light have different cosmetic effects. For example, blue light with a wavelength of 400-500nm is suitable for eliminating skin inflammation; red light with a wavelength of 600-700nm helps promote blood circulation and cell regeneration, enhancing skin elasticity; and near-infrared light (800-1000nm) can penetrate deep into the subcutaneous tissue, helping to reduce inflammation and accelerate skin repair.

[0187] The electrodes are primarily used to deliver microcurrent and / or radiofrequency current to the skin, further enhancing the cosmetic effect. The electrodes' position and shape are designed to fit snugly within the polygonal edges of the first light-transmitting element 12, ensuring even distribution of electrical energy. The electrodes can be made of highly conductive and skin-safe materials, such as stainless steel, silver, or gold-plated copper. These materials not only effectively conduct current but also exhibit excellent corrosion resistance, ensuring the device's long-term stability.

[0188] In this embodiment, the example of pairing opposite electrodes into electrode pairs is used to realize interleaving current. Of course, in some embodiments, adjacent electrodes can be paired into electrode pairs. For example, when a rotating current path is required, adjacent electrodes can be alternately paired into electrode pairs to realize interleaving current. The following is an example of interleaving current:

[0189] During use, the light emitted by the light-emitting device 13 is guided by the first light-transmitting member 12 and evenly illuminates the skin surface. If the edge of the first light-emitting surface 121 of the first light-transmitting member 12 is polygonal, the first electrode 14 can be set on the relatively straight edge of the polygonal first light-transmitting member 12, and the current transmission path will become more direct and efficient. Compared with the layout of the first electrode 14 with arc or circular edges, a straight shortest path can be formed between the first electrodes 14 with opposite straight edges. This linear current path reduces the resistance of the current during conduction, allowing the current to be transmitted quickly with less loss. At the same time, the first electrodes 14 are arranged at intervals on the periphery of the first light-transmitting member 12 to ensure that the microcurrent and / or radiofrequency current is evenly transmitted to the area where the light energy acts on the skin, and work together with the light energy in the same skin area.

[0190] Since the number of sides of the first light-emitting surface 121 is greater than four, the first electrodes 14 can be installed on more sides. As the number of sides increases, the number of first electrodes 14 also increases accordingly. For example, in the design of a hexagonal, octagonal or decagonal first light-transmitting member 12, a first electrode 14 can be installed on each side, so that the device can accommodate more first electrodes 14. As the number of first electrodes 14 increases, the current output between the opposite first electrodes 14 forms a more densely interwoven current field. Each pair of opposing or adjacent first electrodes 14 forms a current pair, and these current pairs are interwoven to form a dense current network. This densely interwoven current can more evenly cover the skin surface of the light-emitting area of ​​the first light-emitting surface 121, ensuring that each part is uniformly electrically stimulated.

[0191] The polygonal structure of the first light-emitting surface 121 allows light energy to pass through the first light-transmitting element 12 and evenly illuminate the skin surface. Simultaneously, the finely interwoven currents output by multiple opposing electrodes also act on the same area. This synergistic effect enables light energy and current to act simultaneously on the skin's surface and deeper tissues. Light energy activates skin cells through a photothermal effect, while the finely interwoven currents further stimulate cell activity, enhancing the light energy's therapeutic effects.

[0192] In other words, by increasing the number of sides of the first light-emitting surface 121, more first electrodes 14 can be installed, thereby increasing the total effective working area of ​​the device. More electrodes mean a wider current coverage area, and the synergistic effect of the finely interwoven current and light energy can more comprehensively cover the skin surface and deep tissues, thus expanding the coverage area of ​​the treatment and increasing the total effective area of ​​the device as a whole.

[0193] In this embodiment, by designing the first light-emitting surface 121 as a polygon with more than four sides, more first electrodes 14 can be installed. Increasing the number of first electrodes 14 means a larger current coverage range, and the densely interwoven current and light energy can more comprehensively cover the same skin area, thereby effectively increasing the total effective working area of ​​the device and maximizing the utilization of the surface area of ​​the working head 112.

[0194] In a possible implementation manner, the outer edge of the first light emitting surface 121 is octagonal, such as Figure 6 As shown, correspondingly, the outer edge of the first opening 1121 is also octagonal, so as to facilitate the installation of the first light-transmitting member 12 on the housing 11 .

[0195] The first light-transmitting member 12 provided in the embodiment of the present application, compared to the circular first light-transmitting member 12 in the related art, has an octagonal first light-emitting surface 121, which can provide care for relatively narrow areas of the human body, such as the nose, and compared to quadrilateral or triangular shapes, the octagonal first light-emitting surface 121 in the present application has a better fit for smooth areas of the skin. Therefore, the octagonal design of the first light-emitting surface 121 can not only provide care for narrow areas of human skin, but also maximize the area of ​​fit for the skin, thereby achieving a better care effect of the skin care device 100 provided in the embodiment of the present application.

[0196] In summary, by refining the design of the number of sides of the first light emitting surface 121 and adopting a polygon with an even number of sides, this embodiment improves the balanced distribution of current and the photoelectric synergy effect.

[0197] Of course, in other embodiments, the first light-emitting surface 121 may also be a regular hexagon, a regular heptagon, a regular enneagon, a regular decagon, or a polygon with a higher number of sides, and the first opening 1121 may correspondingly be a regular hexagon, a regular heptagon, a regular enneagon, a regular decagon, or a polygon with a higher number of sides. This embodiment of the present application is not limited here.

[0198] Similarly, the second light emitting surface 221 may also adopt the same shape as the first light emitting surface 121 , which will not be elaborated in this application.

[0199] Please refer to Figure 2 、 Figure 13 and Figure 14 The outer edge of the first light emitting surface 121 is a regular polygon. This geometric shape has the characteristics that all sides of the polygon are equal in length and angle, making the distribution of the first electrodes 14 more regular and uniform.

[0200] Specifically, since the sides of a regular polygon are of equal length, the first electrodes 14 can be evenly spaced around the periphery of each side. This ensures that the current is evenly distributed throughout the device working head 112, preventing current concentration or dispersion due to excessively long or short sides.

[0201] Furthermore, because the sides of a regular polygon are of equal length, the first electrodes 14 can be evenly spaced around the periphery of each side. Consequently, the regular polygon design allows for more efficient use of the surface area of ​​the device's working head 112. The position of each first electrode 14 is maximized, reducing unused areas of the device's working head 112 and increasing the overall effective working area, thereby enhancing the device's coverage area.

[0202] Therefore, the use of the regular polygonal first light-emitting surface 121 in this embodiment not only optimizes the distribution of the first electrodes 14 and makes current conduction more uniform and effective, but also improves the overall care effect and use efficiency of the device.

[0203] Please continue to refer to Figure 2 In some embodiments, the number of the first electrodes 14 is equal to the number of sides of the first light emitting surface 121 , and each first electrode 14 is correspondingly arranged at intervals on the periphery of one side of the first light emitting surface 121 .

[0204] In this embodiment, the number of first electrodes 14 is equal to the number of sides of the first light-emitting surface 121. That is, each first electrode 14 is spaced apart and arranged at the periphery of a side of the first light-emitting surface 121. This design ensures that the first electrodes 14 precisely match the edges of the first light-transmitting member 12, so that each first electrode 14 is evenly distributed around the light energy output area when the device is in operation. This not only increases the effective contact area between the first electrodes 14 and the skin, but also ensures that the electrical energy and light energy are evenly distributed across the skin, avoiding over-irritation or uneven skin care effects caused by energy concentration in a single area.

[0205] In the design where the number of first electrodes 14 is consistent with the number of sides of the first light-emitting surface 121, the uniform distribution of current and the uniform output of light energy complement each other, forming a good synergistic effect. Since the first electrodes 14 are evenly distributed in the surrounding area of ​​the light energy output, light energy and electrical energy can act simultaneously on the surface of the skin, producing a more significant cosmetic effect. Light energy can stimulate the activity of cells on the surface of the skin, while electric current can penetrate into the skin tissue, promoting collagen production and blood circulation. The combination of the two effectively improves the overall health of the skin and improves skin texture and elasticity. At the same time, the uniform distribution of current and light energy also reduces skin discomfort and improves the user experience and safety. Therefore, this embodiment achieves a more efficient electro-optical synergistic care effect through the design of matching the number of sides of the first electrode 14 with the first light-emitting surface 121.

[0206] Similarly, the outer edge of the second light emitting surface 221 may also be a regular polygon, which will not be described in detail in the embodiment of the present application.

[0207] In this embodiment, the first light emitting surface 121 has six sides; or, the first light emitting surface 121 has eight sides; or, the first light emitting surface 121 has ten sides.

[0208] In some embodiments, the first light-emitting surface 121 and the second light-emitting surface 221 can be designed as polygons with an even number of sides, for example, six, eight, or ten. The even-numbered sides of the first light-emitting surface 121 ensure symmetry and balanced distribution of the first electrodes 14. Each first electrode 14 can be installed in a symmetrical geometric position, forming a uniform current conduction path. This balanced distribution design ensures uniform current distribution within the device working head 112, eliminating current imbalance or localized overconcentration caused by asymmetric sides, thereby ensuring consistent and safe skin care results.

[0209] The even-numbered design optimizes the synergistic effect of light and electrical energy. Light energy is output through the uniformly polygonal first light-emitting surface 121, where it interacts with the current generated by the equally spaced first electrodes 14 to act on the skin surface. Each first electrode 14 is evenly distributed around the periphery of the first light-emitting surface 121, acting synchronously with the light energy to effectively cover the skin care area and enhance the overall cosmetic effect.

[0210] Similarly, the second light emitting surface 221 on the even-numbered side has similar effects to the first light emitting surface 121 on the even-numbered side, and the embodiments of the present application are not described in detail here.

[0211] Please refer to Figure 17 In some embodiments, the number of second electrodes 23 is half the number of sides of the second light emitting surface 221, and each second electrode 23 is arranged at intervals on the periphery of at least two sides of the second light emitting surface 221. Each second electrode 23 is used to electrically connect to two adjacent first electrodes 14 after the auxiliary head 20 is installed on the host 10. That is, each second electrode 23 can be arranged across the edges of two second light emitting surfaces 221. In this way, when a second electrode 23 covers two sides of the second light emitting surface 221, the coverage area of ​​the second electrode 23 can be increased (the side of the second electrode 23 close to the edge of the second light emitting surface 221 is still set as a straight side, and the two ends are bent along the edge corners). This design allows the current to cover the surrounding area of ​​the second light emitting surface 221 more widely, thereby ensuring the electrical stimulation effect on a larger area of ​​the skin surface. The increase in the current coverage area improves the breadth of the care area and helps to achieve a more uniform and comprehensive beauty effect.

[0212] Similarly, the first electrode 14 and the first light emitting surface 121 may also be configured to have the same design, which will not be described in detail in the embodiment of the present application.

[0213] Continue reading Figure 13 and Figure 14 、 Figure 17 and Figure 18 In this embodiment, the first electrodes 14 are arranged around the edge of the first light-emitting surface 121, and the distance between each first electrode 14 and the corresponding edge of the first light-emitting surface 121 is equal; and / or, the second electrodes 23 are arranged around the edge of the second light-emitting surface 221, and the distance between each second electrode 23 and the corresponding edge of the second light-emitting surface 221 is equal; and / or, the distances between adjacent first electrodes 14 or second electrodes 23 are the same; and / or, the first electrodes 14 are parallel to the edge of the corresponding first light-emitting surface 121; and / or, the second electrodes 23 are parallel to the edge of the corresponding second light-emitting surface 221.

[0214] In this embodiment, the distribution of current in the working head 112 of the device can be made more uniform. This uniform distribution avoids the phenomenon of excessive concentration or sparseness of current on the skin surface, and reduces the problem of local overheating or poor effect caused by uneven current. Uniform current distribution helps to improve the overall care effect, so that every part of the skin can receive the same electrical stimulation. At the same time, the range of action of the electrodes and light energy overlaps to a high degree. This ensures that the current and light energy act synchronously on the skin surface, producing a more stable synergistic effect. It avoids the problem of misalignment of the range of action of current and light energy, ensuring that each part of the skin can receive corresponding electrical stimulation while receiving light energy irradiation, thereby improving the overall effect of care.

[0215] The equal distance design reduces current attenuation during conduction, ensuring that each electrode outputs the same current intensity in the same mode. Because the electrodes are at the same distance from the edge of the light-emitting surface 200a, the current is more evenly distributed between each electrode, improving the effectiveness and consistency of the current during skin care.

[0216] In some embodiments, the distances between adjacent first electrodes 14 or second electrodes 23 are the same. Specifically, taking the first light-emitting surface 121 of the first light-transmitting member 12 as an octagon, eight first electrodes 14 are mounted on eight corresponding edges. The distance between the end edges of every two adjacent first electrodes 14 remains the same.

[0217] When the spacing between adjacent first electrodes 14 or second electrodes 23 is the same, the current is more evenly distributed throughout the device's working head 112, avoiding excessive current in certain areas due to excessive concentration of electrodes, and also preventing uneven current distribution due to excessive spacing between electrodes. This uniform current distribution ensures that the skin receives consistent current stimulation during the treatment process, thereby improving the overall treatment effect.

[0218] Furthermore, when the first electrodes 14 are spaced evenly apart, the current coverage on the skin surface more closely matches the light energy area projected by the light-transmitting element. The uniform current distribution and the uniform light energy area work together to provide more effective synergistic care. This synergistic effect not only enhances the cosmetic effect but also provides more comprehensive skin care during the treatment process.

[0219] In some embodiments, the first electrode 14 is parallel to the edge of the corresponding first light-emitting surface 121; and / or the second electrode 23 is parallel to the edge of the corresponding second light-emitting surface 221. This allows the electrodes to adapt to the shape of the light-emitting surface, which not only helps reduce space usage but also ensures that the current coverage on the skin surface is more closely aligned with the light energy area projected by the light-emitting device 13. The uniform current distribution and uniform light energy area work together to provide more effective synergistic care.

[0220] Continue reading Figure 12 and Figure 17 In this embodiment, the edges of the first light emitting surface 121 are opposite to each other in pairs, and the first electrodes 14 disposed on the opposite edges of the first light emitting surface 121 are symmetrically arranged about at least one axis F of the first light emitting surface 121 .

[0221] In this embodiment, the first light-emitting surface 121 of the first light-transmitting member 12 is designed as an octagon as an example, and the edges of the first light-emitting surface 121 are opposite to each other. A first electrode 14 is provided on each of the opposite edges, and these first electrodes 14 are symmetrically arranged with respect to the axis F of the first light-emitting surface 121.

[0222] When the first electrodes 14 are symmetrically distributed around the edge of the first light emitting surface 121, the paths of current conducted from one first electrode 14 to another symmetrical first electrode 14 are symmetrical and equal. This symmetry ensures that the current is evenly distributed on the skin surface.

[0223] At the same time, the symmetrical arrangement of the first electrodes 14 can effectively reduce interference between current fields. The current path of each first electrode 14 forms an independent and balanced current field with the first electrode 14 opposite it, thus avoiding cross interference between current paths.

[0224] Furthermore, the symmetrical arrangement of the first electrodes 14 ensures a better match between the current field and the area of ​​light energy applied. Light energy is evenly distributed across the skin surface along the axis F of the first light-transmitting member 12, while the symmetrical arrangement of the first electrodes 14 creates a symmetrical current field within the same area. This symmetrical combination of light energy and current ensures that every part of the skin receives uniform, dual stimulation from light and electricity, enhancing the skin's care effectiveness.

[0225] In addition, in the embodiment where each first electrode 14 is disposed at intervals on the periphery of at least two edges of the first light emitting surface 121, the first electrodes 14 disposed on opposite edges of the first light emitting surface 121 are also symmetrically disposed about at least one axis F of the first light emitting surface 121. For details, please refer to Figure 18 . In this embodiment, by covering the edges of the two first light-emitting surfaces 121 with one first electrode 14, this embodiment effectively increases the coverage area of ​​the first electrode 14, which makes the contact area between the first electrode 14 and the skin larger, which helps to reduce the contact resistance and improve the current conduction efficiency. At the same time, the symmetrical arrangement of the first electrode 14 ensures the uniformity and minimization of the current path, further reducing the resistance. The symmetrical layout balances the current distribution and avoids the increase in local resistance caused by current concentration under the asymmetric layout, thereby optimizing the overall current conduction performance and enhancing the therapeutic effect and stability of the device.

[0226] Continue reading Figure 15 and Figure 16 In this embodiment, each first electrode 14 includes an electrode sheet 142 and an electrode column 143 . The electrode sheet 142 is located at the outer edge of the working head 112 , and the electrode column 143 extends from the electrode sheet 142 and penetrates the working head 112 .

[0227] In this embodiment, each first electrode 14 is designed to consist of two parts: an electrode sheet 142 and an electrode column 143. The electrode sheet 142 is located at the outer edge of the device's working head 112, directly contacting the skin and conducting current. The electrode column 143 extends from the electrode sheet 142 and passes through the interior of the working head 112, conducting current to the electrode sheet 142. This design ensures efficient current transmission while also improving the overall structural stability of the first electrode 14.

[0228] The electrode sheet 142 is designed to be located at the outer edge of the working head 112 and is mainly used for direct contact with the skin. The electrode sheet 142 can be made of a flexible conductive material to enhance the fit with the skin while ensuring good electrical conductivity.

[0229] Furthermore, the electrode sheet 142 is not limited to a flat shape; it can also be designed as an arc-shaped structure, with one side of the arc-shaped electrode sheet 142 extending to the outer edge of the working head 112, forming a natural transition with the housing. This arc-shaped design has significant advantages when treating irregular skin areas (such as the eye sockets, mouth and nose).

[0230] The arc-shaped electrode piece 142 is combined with the working head 112 in a polygonal cone shape, which can further improve the fit with the natural curve of the skin. Especially when caring for irregular skin areas, such as the eye sockets, around the mouth and nose, the electrode piece 142 can fit closely to the skin of these complex areas, reducing poor contact or excessive local pressure, thereby improving the efficiency and uniformity of current conduction. At the same time, this fit improves the user's comfort.

[0231] Furthermore, the smooth transition between the curved electrode sheet 142 and the housing not only enhances the aesthetics of the device but also strengthens the overall structural strength of the housing. The curved design avoids sharp transitions or protrusions between the electrode sheet 142 and the working head 112, reducing wear and tear during use and physical damage, providing a gentler and more precise operation experience when treating irregular skin areas.

[0232] By designing the electrode sheet 142 to be arc-shaped and extending it to part of the outer edge of the working head 112, the fit and comfort of the first electrode 14 to the skin are improved when treating irregular skin areas (such as the eye sockets, mouth and nose areas). At the same time, the effective coverage range of the current is expanded, and the appearance and structural strength of the device are optimized, thereby providing users with a more efficient and comfortable care experience.

[0233] In some embodiments, please refer to Figure 2 and Figure 11 Each second electrode 23 is electrically connected to at least two conductive connectors 24, and one end of the at least two conductive connectors 24 away from the second electrode 23 is used to correspond one-to-one with the surfaces of the two adjacent first electrodes 14 and be electrically connected after the auxiliary head 20 is installed on the host 10.

[0234] In this embodiment, the provision of the conductive connector 24 ensures that an electrical connection is established between the accessory head 20 and the host 10 , thereby effectively avoiding circuit interruption or poor contact, and ensuring smooth current transmission.

[0235] In some embodiments, the light emitting device 13 is used to emit at least light with a peak between 1400nm±100nm. In this embodiment, the controller 108 is electrically connected to the light emitting device 13 to control the light emitting device 13 to emit at least care light with a peak between 1400nm±100nm, that is, to emit light in the near-infrared region, which penetrates deeper than visible pulse light. The light characteristics of the near-infrared region can be used to increase the penetration depth of light in biological tissues. This light can penetrate the skin and tissues more deeply, providing better illumination and care effects for deep tissues. For example, the light emitting device 13 can emit at least care light with a peak between 1400nm±100nm, which can penetrate the epidermis directly to the dermis and heat the water molecules in the dermis. The water molecules in the dermis absorb the energy of the care light to generate heat to promote collagen proliferation through thermal action, thereby increasing the thickness and density of the dermis, achieving the effects of smoothing wrinkles, shrinking pores, and restoring skin elasticity. In addition, in the near-infrared region, the degree of photon scattering is relatively low, which means that the light loses less energy during propagation and can reach the target area more effectively, improving the care effect while reducing energy waste.

[0236] Therefore, the light emitting device 13 emits at least care light with a peak between 1400nm±100nm to act on the skin, which can effectively promote the skin's absorption of beauty products, thereby greatly improving the skin's absorption efficiency and absorption effect of beauty products or medical products.

[0237] In this embodiment, beauty products include but are not limited to beauty agents, beauty masks, and beauty patches. Medical products include but are not limited to medical drugs and medicine patches.

[0238] Please refer to Figure 19 In some embodiments, the skin care device 100 further includes a gear adjustment component 1009 , which is electrically connected to the controller 108 , and the gear adjustment component 1009 can be switched to at least two working gears;

[0239] At least one of the following parameters corresponding to at least two working gears is different: the driving voltage amplitude of the light-emitting device 13, and the color temperature value of the light-emitting device 13; the controller 108 is also configured to: according to the gear information fed back by the gear adjustment component 1009, control the light-emitting device 13 to emit at least nursing light with a peak between 1400nm±100nm with the driving voltage amplitude and color temperature value corresponding to the gear information fed back by the gear adjustment component 1009.

[0240] In this embodiment, the gear adjustment component 1009 can be designed as a button, knob, dial, or touch screen, providing a variety of operation methods based on different usage scenarios and user habits. For example, the button design is simple and intuitive, suitable for quickly adjusting the gear position; the knob or dial provides more precise mode selection, allowing the user to gradually adjust to the desired mode; and the touch screen can display detailed information about each mode, providing a more intelligent and interactive operation experience.

[0241] The gear adjustment component 1009 can be manually adjusted by the user. In this embodiment, by providing different operating gears on the skin care device 100, the user can easily adjust the operating gear to the appropriate level based on actual conditions, thereby meeting the user's different needs. Of course, in specific applications, as an alternative embodiment, the skin care device 100 can also be provided with only one operating gear.

[0242] As an embodiment, the driving voltage amplitude of the light-emitting device 13 corresponding to each operating level is greater than or equal to 6V and less than or equal to 12V. For example, a driving voltage amplitude of 6V, 9V, or 12V can be used. This ensures that the driving voltage of the light-emitting device 13 is within a safe voltage range and that the light-emitting device 13 can operate stably within a certain voltage range, preventing insufficient light emission due to excessively low voltage and damage due to excessively high voltage. Specifically, when the voltage is between 6V and 12V, the light-emitting device 13 can operate normally and provide a stable lighting effect, thereby ensuring the safety of the user when using the skin care device 100.

[0243] As an embodiment, the color temperature of the light emitting device 13 corresponding to each working gear is greater than or equal to 1500 K and less than or equal to 2100 K. For example, a color temperature of 1500 K, 1700 K, 1900 K or 2100 K may be used.

[0244] In this embodiment, the color temperature range is between 1500K and 2100K, ensuring that the skin care device 100 provides appropriate lighting conditions during use, ensuring the user's skin health and beauty. Specifically, lower color temperatures (approaching 1500K) provide warmer light, suitable for relaxation and skin care, while higher color temperatures (approaching 2100K) provide cooler white light, more suitable for brightening the skin or deep cleansing. This color temperature range can meet different beauty needs while avoiding the adverse effects of using too high or too low color temperatures on the skin.

[0245] Please continue to refer to Figure 19 In some embodiments, the skin care device 100 further includes a temperature detection component 1090 , which is configured to detect skin temperature and / or ambient temperature;

[0246] The controller 108 is also configured to: according to the temperature information fed back by the temperature detection component 1090 and the gear information fed back by the gear adjustment component 1009, control the light emitting device 13 to emit at least nursing light with a peak between 1400nm±100nm with a driving voltage amplitude and a color temperature value of the light emitting device 13 corresponding to the temperature information fed back by the temperature detection component 1090 and the gear information fed back by the gear adjustment component 1009.

[0247] In this embodiment, according to the temperature detection component 1090 detecting different temperature ranges, corresponding driving voltage values ​​or color temperature values ​​are used to drive the light-emitting device 13 to emit light. This is beneficial to ensure that the water molecules in the dermis absorb the energy of the care light to generate heat to promote collagen proliferation through thermal action, and is also beneficial to prevent the occurrence of adverse phenomena such as skin burns caused by excessive temperature.

[0248] In some embodiments, the temperature detection component 1090 includes a temperature sensor, which is arranged at the front end of the working head 112 and electrically connected to the controller 108. The temperature sensor is used to detect the temperature of the skin in real time when the light-emitting device 13 is working and transmit the detection results to the controller 108.

[0249] In this embodiment, the housing 11 is in direct contact with the skin, and the temperature sensor is located at the front end of the working head 112, closest to the treatment area. This allows for more accurate detection of the actual temperature of the skin or the working head 112. When the light-emitting device 13 treats the skin, temperature changes first occur in the area contacted by the working head 112. Therefore, temperature detection at this location can promptly reflect changes in skin temperature during the treatment process.

[0250] As an embodiment, the temperature detection component 1090 is used to detect skin temperature.

[0251] In one embodiment, the temperature sensor is disposed on the first electrode 14, and the first electrode 14 transmits the skin temperature to the detection area of ​​the temperature detection component 1090. That is, the temperature detection component 1090 indirectly detects the skin temperature through the contact between the first electrode 14 and the skin. Of course, this is merely exemplary and is not limited to this embodiment of the present application.

[0252] In some embodiments, the wavelength of the care light emitted by the light emitting device 13 is greater than or equal to 630nm and less than or equal to 1940nm. Light in a wavelength range has specific biological effects and is of great significance for skin care. Light of different wavelengths can penetrate different depths of the skin and act on different skin tissues, thereby achieving different care effects. For example, near-infrared light (wavelength of approximately 630nm-1400nm) can penetrate deep into the skin, promote cell metabolism and collagen production, and help improve skin elasticity and firmness. Mid-infrared light (wavelength of approximately 1400nm-1940nm) can produce a warming effect and accelerate blood circulation.

[0253] Furthermore, the wavelength of the care light emitted by the light emitting device 13 is greater than or equal to 630nm and less than or equal to 630nm, which can promote the generation of adenosine triphosphate (ATP) and act on mitochondria or fibroblasts at the same time, so that the extracellular matrix helps to fission out more collagen and form a collagen network.

[0254] In some embodiments, the skin care device 100 further includes a filter 117 disposed within the housing 11, between the light-emitting device 13 and the first opening 1121. Filter 117 is configured to filter the treatment light emitted by the light-emitting device 13. The primary function of filter 117 is to filter out unnecessary spectral components emitted by the light-emitting device 13, particularly short-wavelength ultraviolet or visible light that may cause skin irritation or discomfort, thereby allowing only light within a specific wavelength range to pass through. This not only enhances the effectiveness of phototherapy but also reduces potential damage to the skin.

[0255] Specifically, filter 117 ensures that the transmitted light is concentrated within the most beneficial wavelength range, such as between 630nm and 1940nm. This wavelength is more effectively able to penetrate the skin, reaching deeper tissues and activating skin cell regeneration and repair. Filter 117 also prevents heat buildup in the device due to unnecessary light scattering, thereby protecting the device and other components from overheating and extending the device's lifespan.

[0256] Reference Figures 20 to 22 The halogen lamp 131 includes: a lamp tube 132 and a filament 133. The lamp tube 132 includes a straight tube section 134, and the straight tube section 134 encloses a cavity; the filament 133 is arranged in the cavity, and the two ends of the filament 133 are respectively connected to the two ends of the lamp tube 132; wherein, the diameter of the outer surface of the straight tube section 134 ranges from 4.5 mm to 5.5 mm.

[0257] The filament 133 is typically made of tungsten wire, which has a high melting point. Tungsten filament is formed by pressing, sintering, and forging tungsten powder into a wire, which can remain stable at high temperatures. The size of the filament 133 is related to the luminous power and the size of the lamp tube 132. The diameter of the filament 133 is typically between 0.1 mm and 0.5 mm. The overall length of the filament 133 is generally consistent with the length of the lamp tube 132 to ensure that the filament 133 emits light of sufficient brightness.

[0258] Since the filament 133 is in a heating state for a long time when the halogen lamp 131 is working, the lamp tube 132 will also heat up. Therefore, the lamp tube 132 is usually made of transparent materials such as heat-resistant glass, which can withstand the high temperature environment when the halogen lamp 131 is working and has good light transmittance and corrosion resistance.

[0259] like Figure 20 and Figure 22 As shown, the straight tube section 134 of the lamp tube 132 is cylindrically arranged to accommodate the filament 133, and the cylindrical structure can reduce the refraction of light, so that the light emitted by the filament 133 is irradiated in the predetermined direction as much as possible. Furthermore, in this embodiment, the diameter of the outer surface of the straight tube section 134 is controlled to be between 4.5 mm and 5.5 mm. If the diameter of the straight tube section 134 is less than 4.5 mm, the processing difficulty of the lamp tube 132 will increase, and the production cost will be higher; if the diameter of the straight tube section 134 is greater than 5.5 mm, the volume of the lamp tube 132 will be larger, occupying more space in the skin care device 100, especially some skin care devices 100 need to use multiple halogen lamps 131 at the same time. The excessively large volume of the lamp tube 132 will make the size of the skin care device 100 larger accordingly, resulting in reduced portability.

[0260] Preferably, the diameter of the outer surface of the straight tube section 134 can be set to 5 mm, which is convenient for processing and manufacturing, and can also avoid taking up too much installation space, thereby ensuring that the skin care device 100 has high portability and improving the user experience.

[0261] Preferably, the filament 133 is set to be spiral, and the diameter of the spiral filament 133 is controlled between 2.5mm and 3.5mm, so that there is a sufficient distance between the filament 133 and the lamp tube 132 to prevent the lamp tube 132 from absorbing too much heat during use, while the filament 133 has good thermal radiation efficiency and luminous efficiency.

[0262] By controlling the diameter of the straight tube section 134 of the halogen lamp 131 to between 4.5 mm and 5.5 mm, which is smaller than the diameter of conventional halogen lamps 131, the present disclosure reduces the volume of the halogen lamp 131, thereby reducing the size of the skin care device 100. Furthermore, the smaller halogen lamp 131 offers greater installation flexibility, making it easier to install two or more halogen lamps 131 in the same skin care device 100, thereby improving the skin care effect of the skin care device 100.

[0263] In some embodiments, please refer to Figure 15 and Figure 23 The light-emitting device 13 includes at least two halogen lamps 131, which are spaced apart from each other within the housing 11. This helps prevent heat accumulation and mutual interference between the halogen lamps 131, facilitating uniform light distribution. The at least two halogen lamps 131 collectively generate light and constitute the light-emitting portion of the entire light-emitting device 13. This design not only ensures the lighting effect of the light-emitting device 13, but also makes its internal structure more reasonable and stable.

[0264] The number of halogen lamps 131 can be one, two, or more than two, and can be selected and set according to actual needs to increase the brightness and lighting range of the light-emitting device 13, which is not limited in this application.

[0265] In some embodiments, please refer to Figures 20 to 22 The halogen lamp 131 includes a lamp tube 132 and a filament 133 arranged in the lamp tube 132. The filament 133 includes a first spiral segment 1331, a second spiral segment 1332 and a non-spiral segment 1333. The first spiral segment 1331 and the second spiral segment 1332 are respectively connected to the two ends of the lamp tube 132, and the non-spiral segment 1333 is connected between the first spiral segment 1331 and the second spiral segment 1332.

[0266] The shape of the lamp tube 132 can be set according to design requirements, such as pear-shaped, cylindrical, oval, or other irregular shapes. The size of the lamp tube 132 is related to the specific application scenario. Larger lamp tubes 132 can be used for large-sized skin care devices 100, while smaller lamp tubes 132 are suitable for skin care devices 100 that require higher portability. Because the filament 133 is in a heating state for a long time when the halogen lamp 131 is in operation, causing the lamp tube 132 to heat up accordingly, the lamp tube 132 is usually made of a transparent material such as heat-resistant glass. It can withstand the high temperature environment when the halogen lamp 131 is in operation and has good light transmittance and corrosion resistance.

[0267] The filament 133 includes a first spiral segment 1331 and a second spiral segment 1332 respectively connected to the two ends of the lamp tube 132, which can be electrically connected to an external power source to form a circuit to achieve light emission. The spiral filament 133 can accommodate a longer filament 133 in a limited space, thereby increasing the surface area of ​​the filament 133 in the lamp tube 132, and more electrical energy can be converted into light energy, thereby improving the light output intensity. The segmented design allows users to flexibly adjust the parameters of the first spiral segment 1331 and the second spiral segment 1332 according to actual needs, such as the pitch (i.e., the distance between adjacent spirals), the number of turns, etc., so that the halogen lamp 131 can better adapt to the requirements of different power and light output positions, and when only a single halogen lamp 131 is set, the first spiral segment 1331 and the second spiral segment 1332 respectively irradiate the skin at different positions to meet the diverse needs of users. The pitch, diameter and number of turns of the first spiral segment 1331 and the second spiral segment 1332 can be adjusted according to different needs. For example, the sum of the number of turns of the first spiral segment 1331 and the second spiral segment 1332 is 65 turns, the pitch is 0.16 mm, and the diameter is 3 mm to accommodate a smaller size of the lamp tube 132 and avoid the halogen lamp 131 occupying too much space in the skin care device 100.

[0268] Since the middle portion of the filament 133 will sag at high temperatures, affecting the lifespan and luminous efficiency of the filament 133, in this embodiment, the filament 133 also includes a non-helical segment 1333, which is connected between the first helical segment 1331 and the second helical segment 1332. This makes the mass distribution of the entire filament 133 no longer uniform, and the center of gravity of the filament 133 shifts, thereby reducing the probability of the filament 133 sagging and the height of the filament 133 sagging.

[0269] It is understood that to reduce the droop height of the filament 133 in the middle, the first and second helical segments 1331, 1332 can be arranged in various ways. For example, the first and second helical segments 1331, 1332 may have the same mass, but the overall length of the first helical segment 1331 is less than the overall length of the second helical segment 1332. In this case, the center of gravity of the filament 133 is biased toward the first helical segment 1331. Alternatively, the first and second helical segments 1331, 1332 may have the same overall length, but the mass of the first helical segment 1331 is less than the mass of the second helical segment 1332. In this case, the center of gravity of the filament 133 is biased toward the second helical segment 1332. Alternatively, the first and second helical segments 1331, 1332 may have the same mass and overall length, while the mass distribution of the third helical segment 1334 is uneven.

[0270] It should be noted that even if the mass and overall length of the first helical segment 1331 and the second helical segment 1332 are the same, at least one of the parameters such as the number of turns, diameter, and pitch of the first helical segment 1331 and the second helical segment 1332 may be different. This embodiment does not impose any limitation on this.

[0271] The present disclosure replaces the entire spiral filament 133 with a filament 133 consisting of a first spiral segment 1331, a second spiral segment 1332, and a non-spiral segment 1333 connected therebetween, so that the center of gravity of the filament 133 no longer falls on the middle part of the filament 133, thereby slowing down the sagging of the filament 133 in the middle part, thereby improving the stability and service life of the filament 133.

[0272] In this embodiment, the filament 133 consisting of the first spiral segment 1331, the second spiral segment 1332 and the non-spiral segment 1333 connected therebetween replaces the entire spiral filament 133, so that the center of gravity of the filament 133 no longer falls on the middle part of the filament 133, thereby slowing down the sagging of the filament 133 in the middle part, thereby improving the stability and service life of the filament 133.

[0273] like Figure 20 As shown, in some embodiments, the first helical segment 1331 and the second helical segment 1332 are symmetrically arranged at both ends of the non-helical segment 1333 .

[0274] The symmetrical arrangement of the first and second helical segments 1331, 1332 is identical. Although the center is located in the middle, the non-helical segments 1333 located in the middle are less massive. The more massive first and second helical segments 1331, 1332 on either side bear more of the weight, thereby stretching the non-helical segments 1333 in the middle toward the sides. This also reduces the likelihood and height of sagging in the middle. Furthermore, the symmetrical arrangement of the first and second helical segments 1331, 1332 enhances the mechanical balance and stability of the filament 133. This helps maintain the overall structural stability of the filament 133 even when subjected to thermal expansion or external impact, minimizing deformation or damage to the filament 133 caused by unbalanced forces. The symmetrical arrangement of the first and second helical segments 1331, 1332 also helps evenly dissipate heat from both ends of the filament 133, minimizing localized overheating caused by uneven heat distribution and reducing the impact of thermal stress on the lifespan of the filament 133.

[0275] Preferably, in this embodiment, the length of the non-helical segment 1333 accounts for 10% to 20% of the total length of the filament 133. Since the non-helical segment 1333 is primarily used to connect the two helical segments and adjust the center of gravity, if the non-helical segment 1333 is too short, the effect of changing the center of gravity of the filament 133 is poor, and stress concentration is likely to occur, causing the connection between the non-helical segment 1333 and the first helical segment 1331 or the second helical segment 1332 to break or loosen. If the non-helical segment 1333 is too long, the space between the first helical segment 1331 and the second helical segment 1332 is compressed, which can easily affect the thermal radiation efficiency and luminous efficiency of the filament 133.

[0276] Therefore, in this embodiment, the length of the non-helical segment 1333 is set to 10% to 20% of the total length, which can not only reduce the probability of excessive stress concentration at the connection, but also avoid occupying too much space to meet the lighting requirements of the skin care device 100.

[0277] like Figure 21 As shown, in some embodiments, there are multiple non-helical segments 1333, and the filament 133 further includes at least one third helical segment 1334, at least one non-helical segment 1333 is connected between the first helical segment 1331 and the third helical segment 1334, and at least one non-helical segment 1333 is connected between the second helical segment 1332 and the third helical segment 1334.

[0278] The addition of the third helical segment 1334 makes the design of the filament 133 more flexible. The lengths and positions of the first helical segment 1331, the second helical segment 1332, the third helical segment 1334 and the non-helical segment 1333 can be adjusted according to specific needs, thereby adjusting the thermal radiation efficiency, luminous efficiency and luminous position of the filament 133 to meet different user needs.

[0279] It is understandable that the parameters such as the number of turns, diameter, and pitch of the third helical segment 1334 may be the same as those of the first helical segment 1331 or the second helical segment 1332 , or may be partially the same or completely different, and the present disclosure does not impose any limitation on this.

[0280] It can be understood that the filament 133 can include two or more third spiral segments 1334, which improves the uniformity of heat distribution inside the lamp tube 132. At this time, the non-spiral segment 1333 can be connected between the two third spiral segments 1334. By controlling the length of the non-spiral segment 1333, the positions of multiple third spiral segments 1334 on the filament 133 can be adjusted to further meet diverse needs.

[0281] like Figures 20 to 22As shown, in some embodiments, the lamp tube 132 includes two splints 135, two molybdenum sheets 136 and two guide rods 137. The two splints 135 are respectively arranged at the two ends of the straight tube section 134, and the two ends of the filament 133 are respectively connected to the two splints 135; the two molybdenum sheets 136 are respectively fixed to the two splints 135, and the two molybdenum sheets 136 are respectively electrically connected to the two ends of the filament 133; each guide rod 137 includes a first connecting end 138 and a second connecting end 139 relative to each other. The two first connecting ends 138 of the two guide rods 137 are respectively fixed to the two splints 135 and are respectively electrically connected to the two molybdenum sheets 136. The two second connecting ends 139 of the two guide rods 137 can be electrically connected to an external power supply.

[0282] The clamping plates 135 are provided at both ends of the straight tube section 134 to prevent leakage of the inert gas within the straight tube section 134. The molybdenum sheet 136 and the guide rod 137 provide good electrical conductivity, allowing current to be conducted to the filament 133. Specifically, the connected filament 133, molybdenum sheet 136, and guide rod 137 are first inserted into the lamp tube 132. The area of ​​the lamp tube 132 that needs to be clamped is heated to soften the glass. Subsequently, a clamping tool is used to squeeze the softened glass to form the clamping plates 135, preventing gas leakage while ensuring that current is smoothly conducted to the filament 133 through the guide rod 137 and the molybdenum sheet 136. The high temperature tolerance and stability of the molybdenum sheet 136 ensure that the halogen lamp 131 operates stably at high temperatures, thereby improving the luminous efficiency and durability of the halogen lamp 131. The guide rod 137 has high mechanical strength. While achieving connection with the battery cell of the external power supply, the position of the halogen lamp 131 can also be fixed by fixing the guide rod 137.

[0283] In some embodiments, the diameter of the filament 133 is 0.17-0.19 mm; and / or the diameters of the first spiral segment 1331 and the second spiral segment 1332 are 2.7-3.3 mm; and / or the lamp tube 132 is filled with xenon gas.

[0284] Among them, the resistance value of the filament 133 with a diameter of 0.17-0.19 mm is more appropriate, which helps to control the heating power of the filament 133 to 25W when the voltage across the filament 133 is 6V-12V.

[0285] Preferably, the diameter of the filament 133 is set to 0.18 mm, so that the filament 133 has a relatively high mechanical strength and a relatively moderate resistance value.

[0286] The diameters of the first spiral section 1331 and the second spiral section 1332 are 2.7-3.3 mm, which is smaller than the 5 mm diameter of the straight tube section 134. This prevents a large amount of heat from being transferred to the lamp tube 132. At the same time, the lamp tube 132 also contains enough spiral filaments 133 to ensure sufficient heat radiation efficiency.

[0287] Preferably, the diameter of the first spiral segment 1331 and the second spiral segment 1332 is set to 3 mm. This prevents the lamp tube 132 from overheating while ensuring that the heat radiation efficiency of the filament 133 is sufficient to achieve a good skin care effect. Xenon, as an inert gas, can effectively reduce the evaporation rate of the filament 133 and extend the life of the filament 133.

[0288] In some embodiments, the length of the molybdenum sheet 136 is 5-6 mm, and the width of the molybdenum sheet 136 is 2-2.5 mm; and / or the diameter of the guide rod 137 is 0.3-0.8 mm, and the length of the guide rod 137 is 7-8 mm.

[0289] The molybdenum sheet 136 is used to connect the filament 133 and the guide rod 137. Since the thermal expansion coefficients of molybdenum metal and glass materials are close, the stress caused by the thermal expansion of the material at high temperatures can be reduced, thereby preventing the lamp tube 132 from breaking. The length and width of the molybdenum sheet 136 can be selected according to design requirements. Preferably, a molybdenum sheet 136 with a length of 5.5 mm and a width of 2.2 mm is more suitable for the halogen lamp 131 in this embodiment, which can ensure stable conductivity and mechanical strength at high temperatures and effectively improve the service life of the filament 133. The guide rod 137 with a diameter of 0.3-0.8 mm has good mechanical strength and can provide good support for the halogen lamp 131. The length of 7-8 mm ensures that the guide rod 137 has sufficient length for electrical connection, and the resistance value of the guide rod 137 can be adjusted by adjusting the diameter and length of the guide rod 137.

[0290] Preferably, the diameter of the guide rod 137 is set to 0.5 mm, and the length of the guide rod 137 is set to 7.5 mm. While the resistance value is relatively moderate, the guide rod 137 can also bear the weight of the halogen lamp 131, which facilitates the installation of the halogen lamp 131.

[0291] like Figure 20 and Figure 21 As shown, in some embodiments, the length L of the straight pipe section 134 ranges from 49 mm to 51 mm.

[0292] The length L of the straight tube section 134, which houses the filament 133, affects the placement of the filament 133. If L is less than 49 mm, the length of the filament 133 that can be accommodated is likely to be reduced, requiring the pitch of the first and second helical sections 1331, 1332 to be shortened or the radius of the first and second helical sections 1331, 1332 to be increased. This increases the difficulty of fabrication. A too small pitch can easily cause adhesion between adjacent turns, while an excessively large radius can place the filament 133 too close to the inner wall of the straight tube section 134. When the filament 133 heats up, heat can easily transfer to the straight tube section 134, causing the straight tube section 134 to overheat and shorten its service life. If L is greater than 51 mm, the halogen lamp 131 occupies a larger space, making installation difficult. Furthermore, the filament 133 is also longer, and adjusting the radius or pitch of the first and second helical sections 1331, 1332 can easily affect the luminous power of the filament 133.

[0293] Preferably, in this embodiment, the length of the straight tube section 134 is set to 50 mm, which can accommodate the 90 mm filament 133 but is not too long to affect the installation of the halogen lamp 131.

[0294] The luminous power of the halogen lamp 131 is determined by the resistance of the filament 133 and the voltage applied across the filament 133. Different luminous powers correspond to different light intensities. Preferably, in this embodiment, the luminous power of the halogen lamp 131 is controlled to 25W, which can quickly complete skin care while avoiding burns and discomfort to the user's skin.

[0295] In some embodiments, please refer to Figure 22 and Figure 23 Two halogen lamps 131 are arranged side by side within the housing 11, facilitating even light distribution. This allows the skin care device 100 to illuminate a larger area, thereby improving skin care efficiency. Furthermore, the two halogen lamps 131 can be powered by different circuits, reducing the voltage required for a single halogen lamp 131 and enhancing the safety of the skin care device 100. Even if one halogen lamp 131 malfunctions, the other halogen lamp 131 will continue to operate, improving the reliability of the skin care device 100. Furthermore, the parallel arrangement of the two halogen lamps 131 within the housing 11 creates a more organized design, occupies less space, and facilitates the installation of other components.

[0296] Please refer to Figure 22 and Figure 23In some embodiments, a protrusion 1322 is formed on the lamp tube 132 of each halogen lamp 131, and the two protrusions 1322 are arranged opposite to each other at intervals; and / or, the skin care device 100 also includes a reflector 1323, which is arranged on the side of the halogen lamp 131 facing away from the working head 112, and is used to reflect the light emitted by the halogen lamp 131 toward the reflector 1323; the reflector 1323 is provided with an arc-shaped reflecting surface corresponding to each halogen lamp 131, and each arc-shaped reflecting surface is coaxially arranged with the lamp tube 132 corresponding to the arc-shaped reflecting surface.

[0297] During the preparation of the halogen lamp 131, a certain amount of inert gas needs to be injected to inhibit evaporation of the tungsten filament and extend the service life of the halogen lamp 131. Once the through-hole for injecting the inert gas is sealed, a protrusion 1322 is formed. In this embodiment, the two protrusions 1322 are spaced relative to each other so that the light emitted by the halogen lamp 131 can be directly emitted from the working head 112, avoiding interference with the light's path and affecting the treatment effect caused by the protrusions 1322.

[0298] In this embodiment, the reflector 1323 can reflect light directed toward the reflector 1323 by the halogen lamp 131 toward the work head 112, thereby improving the utilization rate of the light and thereby improving the efficiency of skin care. The design of the curved reflective surface further enhances the reflection effect of light. By controlling each curved reflective surface to be coaxial with its corresponding halogen lamp 131, the curved reflective surface can accurately reflect light and converge it onto the user's skin, further improving the efficiency of skin care. At this time, controlling the relative spacing of the protrusions 1322 on the two halogen lamps 131 can also prevent the protrusions 1322 from interfering with the installation of the reflector 1323, reducing the probability that the protrusions 1322 will affect the reflection of light from the reflector 1323.

[0299] See also Figure 3 and Figure 24 The skin care device 100 provided in the first embodiment of the present application also includes a cooling module 30a and an irradiation module 102a. The cooling module 30a includes a cooling element 30; the irradiation module 102a includes a blue light emission module 1021 and / or a green light emission module 1022. The blue light emission module 1021 is used to output a blue light signal of a preset wavelength, and the green light emission module 1022 is used to output a green light signal of a preset wavelength; the blue light signal and / or green light signal output by the irradiation module 102a is transmitted to the care area via the cooling module 30a to perform care on the care area.

[0300] The cooling element 30 serves as a cooling unit for the skin care device 100 during cold therapy, outputting cooling energy during the cold therapy process. When DC current passes through the cooling element 30, it absorbs heat at its joints, thereby cooling the surrounding environment and generating cooling energy. The cooling element 30 may be a thermocouple composed of at least two different semiconductor materials.

[0301] It should be noted that when current flows through the cooling element 30, electrons move between at least two different semiconductor materials within the cooling element 30. Due to the differences in the electronic band structures of the different materials, the electrons absorb or release energy during the transfer from one material to the other. At the cooling end, the electrons absorb heat, lowering the temperature. The cooling energy is then transferred to the contacting object through heat conduction, such as the contact surface of the skin care device 100 with the skin.

[0302] See also Figures 25 to 27 The illumination module 102a includes a blue light emitting module 1021 and / or a green light emitting module 1022. The blue light emitting module 1021 is used to output a blue light signal of a preset wavelength, and the green light emitting module 1022 is used to output a green light signal of a preset wavelength.

[0303] In this embodiment, the illumination module 102a may include at least one of a blue light emitting module 1021 and a green light emitting module 1022. The blue light emitting module 1021 generally uses a blue light emitting diode (LED) of a specific wavelength as the main light source. The blue light emitting module 1021 may also include a lens, a reflector, a filter, etc. The lens is used to focus and diffuse the blue light to meet different application requirements. The reflector can reflect the blue light in a specific direction to improve the utilization rate of the light. The filter can filter out unwanted wavelengths and allow blue light of a specific wavelength to pass through to improve the purity and quality of the blue light.

[0304] See also Figure 28 and Figure 29 The blue light emitting module 1021 and the green light emitting module 1022 may both include a light emitting element 1023 , which may be a laser diode. The light emitting element 1023 may serve as the light source of the blue light emitting module 1021 and the green light emitting module 1022 , respectively.

[0305] The blue light signal and / or green light signal output by the blue light emitting module 1021 and the green light emitting module 1022 in the irradiation module 102a are transmitted to the nursing area via the cooling module 30a to provide nursing care for the nursing area.

[0306] Please continue reading Figure 3 and Figure 24Refrigeration module 30a can quickly lower the temperature of the treatment area. Low temperatures can soothe the skin. For example, after skin irritation, low temperatures can constrict blood vessels, reduce inflammation, and alleviate redness, swelling, and pain. For sensitive skin or those experiencing skin sensitivity after beauty treatments, the cooling effect of refrigeration module 30a can help the skin quickly return to a stable state and alleviate discomfort.

[0307] Blue light signals typically have wavelengths between 455 and 475 nanometers. In beauty care, specific wavelengths of blue light have antibacterial and anti-inflammatory properties and can accelerate cell metabolism. Green light signals typically have wavelengths between 500 and 520 nanometers. Green light has a soothing and calming effect in skin care. For sensitive skin, green light can alleviate symptoms such as redness and itching. This, in turn, regulates the skin's immune system, strengthens its resistance, and reduces the impact of external stimuli on the skin.

[0308] When the blue light and / or green light signals are transmitted to the care area through the cooling module 30a, since both act on the same skin at the same time, the bactericidal, anti-inflammatory, soothing and accelerated cell metabolism of the blue light, or the soothing and calming effect of the green light can enhance the calming effect of the cooling module 30a on the skin, while accelerating cell metabolism, allowing new cells to reach the skin surface faster and then soothe and calm, achieving a synergistic care effect on the skin.

[0309] Please continue reading Figure 30 The first light-transmitting element 12 is located on one side of the refrigeration element 30 , and the cooling energy generated by the refrigeration element 30 is transmitted to the nursing area through the first light-transmitting element 12 .

[0310] The first light-transmitting element 12 can be directly attached to the surface of the cooling element 30 to minimize thermal resistance and ensure rapid transfer of cooling energy. Alternatively, the two can be connected via a specific heat-conducting medium to optimize heat transfer efficiency while also ensuring structural stability and maintainability.

[0311] The cooling element 30 may be a component that generates cooling energy in the skin care device 100. For example, the cooling element 30 may be a semiconductor cooling chip that utilizes the Peltier effect to achieve cooling by switching on and off current, or compresses a refrigerant to achieve cooling, thereby generating cooling energy.

[0312] After the refrigeration element 30 outputs cooling energy, the cooling energy is transferred to the first light-transmitting element 12 , and the first light-transmitting element 12 can transfer the cooling energy to the care area.

[0313] In this embodiment, the blue light signal and the green light signal respectively emitted from the blue light emitting module 1021 and / or the green light emitting module 1022 can pass through the first light-transmitting member 12 and reach the nursing area.

[0314] Please continue reading Figure 3 , the blue light signal output by the blue light emitting module 1021 is transmitted to the nursing area via the first light-transmitting element 12 ; and / or, the green light signal output by the green light emitting module 1022 is transmitted to the nursing area via the first light-transmitting element 12 .

[0315] While the cooling element 30 generates cooling energy, the blue light emitting module 1021 and / or the green light emitting module 1022 may output corresponding blue light signals and / or green light signals.

[0316] The simultaneous output of cooling energy and light signals can exert a synergistic effect and enhance the therapeutic effect on the care area. For example, cooling energy can constrict skin blood vessels and reduce inflammatory reactions. Combined with the bactericidal effect of blue light, it can more effectively treat skin problems such as acne. The soothing effect of green light can also be enhanced in a cooling environment, providing better care for sensitive skin. At the same time, since blue light and / or green light also generate a certain amount of heat, transmitting blue light and / or green light to the care area through the first light-transmitting element 12 is also beneficial for the refrigeration element 30 to further reduce the heat of blue light and / or green light, thereby reducing the heat reaching the skin and playing the role of cell cold therapy.

[0317] Please continue reading Figures 25 to 28 The skin care device 100 further includes an annular reflector 103a, which is disposed between the blue light emitting module 1021 or the green light emitting module 1022 and the first light-transmitting member 12. The annular reflector 103a encloses a hollow inner hole, through which light emitted by the light-emitting element 1023 in the blue light emitting module 1021 or the green light emitting module 1022 passes to illuminate the first light-transmitting member 12 and transmit to the treatment area.

[0318] The annular reflector 103a is ring-shaped. First, the ring can surround one side of the blue light emitting module 1021 or the green light emitting module 1022, providing a continuous and uniform reflective surface for light. Second, the hollow portion of the ring allows light to pass through, forming a specific optical path, minimizing light loss and ensuring that light accurately reaches the target area.

[0319] Light passes through the hollow inner hole and hits the first light-transmitting element 12, which then transmits it to the treatment area. During this process, the hollow inner hole acts as a bridge connecting the light-emitting module and the treatment area. This ensures that the light is not blocked or scattered by other objects during transmission, allowing it to efficiently reach the treatment area and achieve the desired skin care effect. In one embodiment, the first light-transmitting element 12 is sapphire.

[0320] It's important to note that sapphire is extremely transparent and has a very high transmittance for visible light, especially in the wavelengths corresponding to blue and green light signals. This allows signals from blue and green light emission modules 1021 and 1022 to pass through the sapphire with virtually no loss, ensuring the effectiveness of phototherapy. Whether it's the specific wavelength of blue light used for sterilization and anti-inflammation, or the soothing and calming green light, both can reach the treatment area with maximum intensity and exert their intended therapeutic effects.

[0321] Furthermore, sapphire's high thermal conductivity allows it to quickly and efficiently conduct the cooling energy generated by the cooling element 30. When the cooling element 30 is operating, the sapphire, acting as the first light-transmitting element 12, rapidly transfers the cooling energy to the treatment area, achieving highly effective cold therapy. This rapid thermal conductivity ensures rapid cooling of the treatment area, constricts blood vessels, reduces inflammation, and provides a comfortable skin care environment.

[0322] Sapphire's excellent light transmittance and cooling properties allow for the perfect combination of light therapy and cold therapy, significantly enhancing the effectiveness of skin care devices. For skin conditions like acne and blackheads, the antiseptic and anti-inflammatory effects of blue light combined with the cooling and vasoconstricting effects of cold therapy synergize to more quickly alleviate symptoms. For sensitive skin, the soothing and calming effects of green light combined with the comforting care of cold therapy can further alleviate skin discomfort.

[0323] At the same time, the uniform light transmittance and cooling properties of sapphire can ensure that every part of the care area can be fully treated, avoiding incomplete local treatment.

[0324] In some embodiments, the first light-transmitting member 12 includes a first light-emitting surface 121 facing the skin and a first light-incident surface 122 opposite to the first end surface. The first light-emitting surface 121 of the first light-transmitting member 12 is in contact with the skin for caring for the care area.

[0325] The blue light emitting module 1021 and / or the green light emitting module 1022 is disposed on a side opposite to the first light incident surface 122 .

[0326] The first light-transmitting element 12 has two clearly distinguished end surfaces, namely a first light-emitting surface 121 facing the skin and a first light-entering surface 122 opposite thereto, which helps to clarify its functional direction during use. The first light-emitting surface 121 directly contacts the skin of the care area and undertakes the key task of delivering light therapy and cold therapy to the skin. The first light-entering surface 122 can be used to receive cooling energy from the refrigeration element 30 and optical signals from the blue light emission module 1021 and / or the green light emission module 1022, and transmit the cooling energy and optical signals to the first light-emitting surface 121.

[0327] The close contact of the first light-emitting surface 121 with the skin is crucial for effective treatment. This close contact ensures that cooling energy and light signals are delivered directly to the treated area, minimizing energy loss and signal scattering. When the first light-emitting surface 121 is in close contact with the skin, the cooling energy generated by the cooling element 30 is rapidly transferred to the skin surface, lowering the skin temperature and achieving a cold therapy effect.

[0328] At the same time, the blue light signals and / or green light signals emitted by the blue light emitting module 1021 and / or the green light emitting module 1022 can be efficiently transmitted to the skin through the first light emitting surface 121 of the first light-transmitting member 12, thereby exerting their specific therapeutic effects. For example, blue light can kill bacteria and reduce inflammation, while green light can soothe and calm the skin, thereby providing targeted phototherapy for the treatment area.

[0329] Please continue reading Figure 24 In some embodiments, the skin care device 100 further includes a control module 108a, which is electrically connected to the cooling module 30a and the irradiation module 102a, and is used to output control instructions for controlling the cooling module 30a and the irradiation module 102a to perform skin care. After receiving the control instructions, the cooling module 30a and the irradiation module 102a start working to care for the care area.

[0330] As the core control unit of the skin care device 100, the control module 108a plays a crucial coordinating role. It is electrically connected to the cooling module 30a and the illumination module 102a, enabling precise control of the operating status of these two key modules. By outputting specific control instructions, the control module 108a determines when the cooling module 30a and the illumination module 102a should activate, at what intensity, and for how long.

[0331] For example, during skin care, the control module 108a can activate the cooling module 30a in a timely manner based on the user's needs and skin condition, generating cooling energy to reduce the temperature of the treatment area and alleviate skin inflammation, redness, and swelling. Simultaneously, the control module 108a can also control the illumination module 102a to output blue or green light signals of specific wavelengths, achieving different treatment effects such as sterilization, anti-inflammatory, and soothing.

[0332] Please continue reading Figure 24 The skin care device 100 also includes a mode selection module 105, which is used to select the working mode of the skin care device 100, wherein the working mode of the skin care device 100 includes a cold therapy mode, and the mode selection module 105 is electrically connected to the control module 108a.

[0333] The control module 108a is configured to control the cooling module 30a and the irradiation module 102a to operate when receiving an input signal from the mode selection module 105 indicating that the cold therapy mode is selected.

[0334] The control module 108a is electrically connected to the mode selection module 105 and is capable of receiving real-time input signals from the mode selection module 105. When the user selects the cold therapy mode through the mode selection module 105, the control module 108a immediately responds to this input signal and controls the operation of the cooling module 30a and the irradiation module 102a according to the preset parameters of the cold therapy mode.

[0335] Specifically, the control module 108a adjusts the operating parameters of each module based on the requirements of the cold therapy mode to ensure stable and effective operation of the device in cold therapy mode. For example, the control module 108a can increase the power of the cooling module 30a to quickly reduce the temperature of the treatment area; at the same time, the control module 108a adjusts the operating state of the irradiation module 102a to match the cold therapy mode.

[0336] In some embodiments, the mode selection module 105 includes at least one mode selection control component, which is located on the outside of the skin care device 100; when the control module 108a receives the input signal of the mode selection control component for the cold therapy mode, it controls the cooling module 30a and the irradiation module 102a to perform skin care simultaneously or with an interval less than a preset time.

[0337] At least one mode selection control component in the mode selection module 105 is a key component for user interaction with the skin care device 100. These controls can take various forms, such as physical buttons, knobs, touch-sensitive areas, etc., allowing users to conveniently select different operating modes to meet their personalized skin care needs.

[0338] The mode selection controls are located on the outside of the skin care device 100, enhancing user convenience. Users can access and operate these controls directly from the device's surface, without having to open the device or perform complex operations. This layout makes the device more intuitive and easy to use, enhancing the user experience.

[0339] Control module 108a is electrically connected to the mode selection control assembly and is capable of receiving real-time input signals from these components. When a user selects the cold therapy mode via the mode selection control assembly, control module 108a immediately detects this signal and begins processing accordingly. This rapid response capability is key to ensuring the device can promptly meet user needs. Based on the type and content of the input signal, control module 108a identifies the user-selected cold therapy mode and prepares to control cooling module 30a and irradiation module 102a.

[0340] The mode selection module 105 includes at least one mode selection control component, which is located on the outside of the skin care device 100; when the control module 108a receives the input signal of the mode selection control component for the cold therapy mode, it controls the cooling module 30a and the irradiation module 102a to perform skin care simultaneously or with an interval less than a preset time.

[0341] Upon receiving the cold therapy mode input signal, the control module 108a controls the cooling module 30a and the irradiation module 102a to perform skin treatment simultaneously or at intervals less than a preset time. In the cold therapy mode, the cooling module 30a and the irradiation module 102a work closely together to provide effective treatment to the treatment area.

[0342] The control module 108a can control the cooling module 30a and the irradiation module 102a to work within a preset time interval, thereby realizing the coordinated work of the cooling module 30a and the irradiation module 102a, realizing the user's selection of different working modes and the efficient coordination between the modules of the device.

[0343] As an embodiment, operating within an interval shorter than the preset time can involve the cooling module 30a and the irradiation module 102a operating simultaneously. This simultaneous operation maximizes the synergistic effect of cold therapy and light therapy. The cooling module 30a reduces the temperature of the treated area, alleviating inflammation and reducing redness and swelling, while the specific wavelength of light emitted by the irradiation module 102a can sterilize, reduce inflammation, and promote collagen production. The simultaneous operation of these two modules can enhance treatment effectiveness and shorten treatment time.

[0344] After the control module 108a determines that the skin care device 100 executes the light-heat coordinated mode or the multi-stage mode, the control module 108a controls the cooling module 30a and the irradiation module 102a to perform skin care.

[0345] It should be noted that the skin care device 100 may include multiple working modes, and the multiple working modes may include a cold therapy mode, a light-heat synergy mode, and a multi-stage mode.

[0346] The cold therapy mode may be a mode in which the control module 108a controls the refrigeration module 30a and the irradiation module 102a to work simultaneously, so as to provide cold therapy care to the care area.

[0347] Photothermal synergy mode means that the skin care device 100 uses both electrical and optical signals to synergistically heat the treatment area. In this mode, the electrical signal can penetrate deep into the subcutaneous tissue of the treatment area to heat it, while the optical signal can heat the skin surface in the treatment area, thus achieving photothermal synergistic heating of the treatment area.

[0348] The multi-stage mode can be a mode for performing care in stages. In this mode, the skin care device 100 can activate tapping of the care area with an electric signal according to a preset frequency band, and can also cycle through the frequency bands for activating tapping of the care area, thereby achieving multi-stage care of the care area.

[0349] The skin care device 100 can also start the cold therapy mode to perform cold therapy on the care area after running the photothermal synergistic mode and / or multi-stage mode. The cold therapy mode after the photothermal synergistic mode and / or multi-stage mode can be used to alleviate the irritation to the skin during the photothermal synergistic mode and / or multi-stage mode care process.

[0350] In one embodiment, the blue light signal output by the blue light emission module 1021 has a preset wavelength within the range of 455nm to 475nm. Blue light signals within this range can penetrate the skin to a certain depth, acting on specific cells or tissues in the skin to produce singlet oxygen, thereby killing bacteria and reducing inflammation, thereby achieving bactericidal and anti-inflammatory effects.

[0351] As an embodiment, the preset wavelength of the green light signal output by the green light emission module 1022 is within the range of 500nm to 520nm. The green light signal with a wavelength within the range of 500nm to 520nm can penetrate the skin to a certain depth and act on specific skin cells or tissues. For sensitive skin or irritated skin, the green light can help reduce inflammation, relieve redness and swelling, promote skin repair and regeneration, and thus have a soothing and calming effect.

[0352] See also Figure 31 The skin care device 100 provided in the first embodiment of the present application includes a working head 112, the front end of the working head 112 can contact the skin, and the skin care device 100 also includes a radio frequency working module 106, a light working module 107 and a controller 108. The radio frequency working module 106 includes a plurality of first electrodes 14 for outputting radio frequency current to the skin; the light working module 107 includes a light-emitting device 13, and the light working module 107 is used to emit light with a wavelength between 630nm and 1940nm; the controller 108 is electrically connected to the radio frequency working module 106 and the light working module 107, and is used to output control instructions for controlling the radio frequency working module 106 and the light working module 107 to work simultaneously, so as to perform light irradiation and radio frequency current on the skin.

[0353] The front end of the working head 112 can be in contact with the skin, so as to efficiently transfer the energy generated by the radio frequency working module 106 and the optical working module 107 to the skin tissue.

[0354] Specifically, when RF module 106 generates RF current, the contact between working head 112 and the skin enables the RF current generated by RF module 106 to act more directly on the deeper layers of the skin, such as the dermis. Similarly, the specific wavelength of light emitted by optical module 107 can also be more effectively irradiated through working head 112 to the surface and deeper layers of the skin, achieving skin care functions.

[0355] It should be noted that the working head 112 is not only a physical contact point but also an important medium for energy transfer. Furthermore, the working head 112 can integrate multiple functions to achieve multifunctional skin care. In addition to transmitting radiofrequency current and light, the working head 112 can also have massage, cleansing, and introduction functions. For example, the working head 112 can massage the skin through vibration or rotation, promoting blood circulation and metabolism. Furthermore, the working head 112 can also be used in conjunction with skin care products to introduce nutrients deep into the skin, enhancing the absorption of the skin care products.

[0356] See also Figure 29 and Figure 30 The RF module 106 includes several first electrodes 14 for delivering RF current to the skin. The RF module 106 is a key component of the skin care device 100, primarily responsible for generating and delivering RF current. The circuit system generates an RF signal of a specific frequency and intensity, while the first electrodes 14 are key components for delivering the RF current to the skin. The presence of several first electrodes 14 ensures a more uniform application of the RF current to the skin.

[0357] The number of first electrodes 14 can be adjusted based on the device's design and functional requirements. Multiple first electrodes 14 can be distributed in different locations to provide precise treatment for different skin areas. For example, some devices may include multiple first electrodes 14 at different locations on the working head 112 to simultaneously provide RF treatment for a large area of ​​skin.

[0358] It should be noted that when the first electrodes 14 output radio frequency current to the skin, the radio frequency current will generate heat in the skin tissue. This heat is mainly concentrated in the dermis, because the frequency and characteristics of the radio frequency current enable it to penetrate the epidermis and penetrate into the dermis. The collagen in the dermis shrinks after being heated, making the skin firmer. In addition, in addition to the immediate firming effect, the radio frequency current can also stimulate the regeneration of collagen. Long-term radio frequency care can promote the fibroblasts in the dermis to produce new collagen, increasing the elasticity and thickness of the skin. This collagen regeneration effect is continuous and can gradually improve the quality of the skin over time.

[0359] Please continue reading Figure 27 、 Figure 28 and Figure 31 The optical working module 107 includes a light emitting device 13, and the optical working module 107 can be used to emit light with a wavelength between 630nm and 1940nm.

[0360] The light-emitting device 13 in the optical working module 107 is a core component that generates light of a specific wavelength. This device can include a light-emitting diode (LED), a laser diode, or other devices. It offers advantages such as high efficiency, stability, and a long lifespan, capable of continuously emitting light of the desired wavelength. This device can include at least one halogen lamp 131, which is used to heat the skin in the treatment area of ​​the skin care device 100 to achieve skin care results.

[0361] The performance of the light-emitting device 13 directly impacts the effectiveness of the optical working module 107. For example, parameters such as luminous intensity, wavelength stability, and spectral purity are important indicators of the quality of the light-emitting device 13. A high-quality light-emitting device 13 ensures that the output light has sufficient intensity and stability to achieve effective skin care.

[0362] The light working module 107 can be used to emit light with a wavelength between 630nm and 1940nm. Light in this wavelength range has specific biological effects and is of great significance for skin care. Light of different wavelengths can penetrate different depths of the skin and act on different skin tissues, thereby achieving different care effects. For example, near-infrared light (wavelength of approximately 630nm-1400nm) can penetrate deep into the skin, promote cell metabolism and collagen production, and help improve skin elasticity and firmness. Mid-infrared light (wavelength of approximately 1400nm-1940nm) can produce a warming effect and accelerate blood circulation.

[0363] The wavelength of 630-760nm can promote the generation of adenosine triphosphate (ATP) and act on mitochondria or fibroblasts at the same time, so that the extracellular matrix helps to fission out more collagen and form a collagen network.

[0364] Light with a wavelength between 630nm and 1940nm can stimulate the activity of skin cells, promote cell regeneration and repair, and also improve the texture and color of the skin.

[0365] Please continue reading Figure 31 Controller 108 is electrically connected to RF module 106 and optical module 107. Controller 108 is configured to output control instructions for simultaneously operating RF module 106 and optical module 107, thereby providing light irradiation and RF current application to the skin. Specifically, controller 108 may include a frequency adjustment unit 1081 and a light emitting device adjustment unit 1082. Controller 108 can adjust RF module 106 by adjusting frequency adjustment unit 1081, and can also adjust optical module 107 by adjusting light emitting device adjustment unit 1082.

[0366] Controller 108 is electrically connected to RF module 106 and optical module 107, enabling effective communication and control between the two modules. Control commands may include start / stop commands, mode selection commands, and parameter adjustment commands. For example, controller 108 may send a start command to simultaneously initiate operation of RF module 106 and optical module 107; it may also send a parameter adjustment command to adjust parameters such as the intensity and frequency of the RF current emitted by RF module 106 and the intensity and wavelength of the light output by optical module 107.

[0367] In some embodiments, if the RF working module 106 and the optical working module 107 begin operating within a preset time period, such as within 15 seconds, it can be determined that the RF working module 106 and the optical working module 107 are operating simultaneously. This time interval setting ensures the functional synergy between the two modules while allowing for actual time differences in device operation to a certain extent.

[0368] Please continue reading Figure 3 、 Figure 30, a number of first electrodes 14 are arranged around the first opening 1121, so that the first electrodes 14 and the first opening 1121 can work together in a limited space without interfering with each other. Specifically, the first electrodes 14 output the RF current output by the RF working module 106 around the first opening 1121, and the first opening 1121 allows the light output by the optical working module 107 to irradiate the skin. The proximity of the two in position can enable the RF current and the light to interact on the skin surface and in the shallow tissue, resulting in a better skin care effect. In addition, the first electrodes 14 arranged around the first opening 1121 can compensate for the energy attenuation of the light output by the optical working module 107 in the periphery (the peripheral energy is small due to the refraction, reflection and scattering of light around the light port), thereby improving the care efficacy of the skin care device 100.

[0369] In some embodiments, the plurality of first electrodes 14 also output microcurrents to the skin, which can reach the muscle layer through the microcurrents, stimulate the skin muscles to repeatedly contract and relax, restore the muscle "vitality", improve skin tension and elasticity, help lift the V-face, enhance facial contours, improve skin sagging, reduce edema, etc.

[0370] The optical working module 107 emits light with a wavelength between 630nm and 1940nm, and combines with the radio frequency current and microcurrent output by the first electrode 14. The three act on the skin, which is not only beneficial to collagen production and the formation of a collagen network, but also has the effect of lifting the face and fading fine lines. The three have a synergistic care effect on the skin.

[0371] Please continue reading Figure 30 and Figure 31 The skin care device 100 also includes a temperature detection module 109, which is arranged at the front end of the working head 112 and is electrically connected to the controller 108. It is used to detect the target temperature of the skin and transmit the detection results to the controller 108 when the radio frequency working module 106 and the optical working module 107 are working.

[0372] The controller 108 in the skin care device 100 is further configured to adjust the power of the optical working module 107 and / or the radio frequency working module 106 according to the detection result.

[0373] The working head 112 is in direct contact with the skin, and the temperature detection module 109 is located at the front end of the working head 112, closest to the treatment area, allowing for more accurate detection of the actual temperature of the skin or the working head 112. When the RF working module 106 and the optical working module 107 are treating the skin, temperature changes first occur in the area of ​​contact with the working head 112. Therefore, temperature detection at this location can promptly reflect changes in skin temperature during the treatment process.

[0374] It should be noted that when the temperature detection module 109 detects the temperature of the treatment area, it can detect the temperature of the first light-transmitting member 12 in the working head 112, and use the temperature of the first light-transmitting member 12 as the target temperature for detecting the skin temperature. When the temperature detection module 109 detects the temperature of the treatment area, it can also directly detect the temperature of the area closest to the skin surface to determine the target skin temperature obtained by the temperature detection module 109. It can also detect the temperature of the first electrode 14 in contact with the skin, and use the temperature of the first electrode 14 as the target temperature for detecting the skin temperature.

[0375] Please continue reading Figure 30 and Figure 31 The temperature detection module 109 includes a temperature sensor 1091 disposed on the first electrode 14 .

[0376] The controller 108 also includes a light emitting device adjustment unit 1082, which is electrically connected to the temperature detection module 109 and the light emitting device 13 respectively, and is used to receive the temperature detection signal input by the temperature detection module 109 and adjust the operating voltage value of the light emitting device 13 according to the temperature detection signal.

[0377] The first electrodes 14 are in close contact with the skin during operation, and the temperature sensor 1091 disposed on the first electrodes 14 can more directly sense changes in skin temperature. Because the RF operating module 106 outputs RF current through the first electrodes 14 to act on the skin, the temperature changes in the affected area of ​​the skin are more significant. Therefore, the placement of the temperature sensor 1091 in this area allows for more accurate monitoring of the temperature information of the skin care device 100 during the treatment process.

[0378] The light-emitting device adjustment unit 1082 in the controller 108 is electrically connected to the temperature detection module 109 and the light-emitting device 13. Thus, the light-emitting device adjustment unit 1082 can receive a temperature detection signal from the temperature detection module 109. This temperature detection signal contains information about the current skin temperature and serves as an important basis for adjusting the operating state of the light-emitting device 13. After receiving the temperature detection signal, the light-emitting device adjustment unit 1082 can understand changes in skin temperature and adjust the light-emitting device 13 accordingly.

[0379] Thus, the temperature sensor 1091 in the temperature detection module 109 is disposed on the first electrode 14, enabling more accurate monitoring of skin temperature changes. The light-emitting device adjustment unit 1082 in the controller 108 receives the temperature detection signal and adjusts the operating voltage of the light-emitting device 13 accordingly, thereby achieving precise control of skin temperature and optimizing the phototherapy effect, thereby improving the safety and effectiveness of the skin care device 100.

[0380] As an embodiment, the frequency of the RF signal output by the RF working module 106 is in the range of 0.8 MHz to 3.5 MHz, and / or the peak of the light output by the optical working module 107 is in the range of 1400 nm ± 100 nm, and / or the wavelength of the light emitted by the optical working module 107 includes a range between 630 nm and 670 nm.

[0381] Radiofrequency signals in the 0.8MHz to 3.5MHz frequency range can achieve multi-layered effects on the skin, affecting varying depths. Consequently, these signals can generate a thermal effect in tissue at varying depths. When applied to the skin, these signals cause molecular vibrations in the skin's tissue at varying depths, generating heat. This thermal effect stimulates the contraction and regeneration of collagen, promoting skin firmness and elasticity. Furthermore, this appropriate thermal effect improves blood circulation, increases nutrient supply, and promotes skin cell metabolism.

[0382] Light with a peak wavelength within the range of 1400nm ± 100nm can better interact with components such as moisture and collagen in skin tissue, producing specific biological effects. As a result, the light can more effectively heat the moisture in the skin tissue, causing collagen to shrink and regenerate. At the same time, it can also stimulate the activity of skin cells, promoting cell metabolism and repair.

[0383] Light with a wavelength of 630nm to 670nm can promote cell metabolism, increase collagen production, improve skin elasticity and firmness, and promote the production of adenosine triphosphate (ATP). At the same time, it acts on mitochondria or fibroblasts, allowing the extracellular matrix to help fission out more collagen and form a collagen network.

[0384] Please continue reading Figure 31 The skin care device 100 further includes a radio frequency signal detection module 1010, which is electrically connected to the controller 108 and is configured to detect the frequency of the radio frequency signal when the radio frequency working module 106 is operating, and transmit the detection result to the controller 108. The controller 108 is further configured to adjust the power of the radio frequency working module 106 based on the detection result.

[0385] The RF signal detection module 1010 is electrically connected to the controller 108, enabling the RF signal detection module 1010 to transmit detected information to the controller 108 in real time. Through the electrical connection, the RF signal detection module 1010 can quickly and accurately transmit relevant data of the RF signal to the controller 108 in the form of an electrical signal, ensuring that the controller 108 can obtain the working status information of the RF working module 106 in a timely manner.

[0386] When the RF operating module 106 is operating, the RF signal detection module 1010 can detect the frequency of the RF signal. The frequency of the RF signal is a critical parameter that directly affects the skin care effect of the RF operating module 106. Different frequencies result in different penetration depths and modes of action of the RF energy in the skin. By detecting the frequency of the RF signal, the RF signal detection module 1010 can provide the controller 108 with key information regarding the operating status of the RF operating module 106.

[0387] The RF signal detection module 1010 transmits the detected RF signal frequency results to the controller 108. To ensure that the controller 108 is always aware of the operating status of the RF working module 106, the RF signal detection module 1010 can detect and transmit the results in real time. Based on the received detection results, the controller 108 can promptly adjust the control strategy for the RF working module 106 to achieve better skin care effects.

[0388] The controller 108 is configured to adjust the power of the RF working module 106 based on the detection results transmitted by the RF signal detection module 1010. After receiving the RF signal frequency information detected by the RF signal detection module 1010, the controller 108 determines whether to adjust the power of the RF working module 106 based on the detected RF signal frequency information. If the detection results indicate that the RF signal frequency deviates from the preset ideal frequency, the controller 108 can adjust the power of the RF working module 106 to return the RF signal frequency to an appropriate range.

[0389] Therefore, the RF signal detection module 1010 in the skin care device 100 cooperates with the controller 108 to detect the frequency of the RF signal and transmit the result to the controller 108. The controller 108 then adjusts the power of the RF working module 106 according to the detection result, thereby achieving precise control of the skin care device 100, optimizing the skin care effect, and ensuring the safe and stable operation of the device.

[0390] Please continue reading Figure 31The controller 108 of the skin care device 100 also includes: a frequency adjustment unit 1081, which is connected to the first electrode 14 and the radio frequency signal detection module 1010 respectively. The frequency adjustment unit 1081 can be used to receive the frequency detection signal input by the radio frequency signal detection module 1010 and adjust the operating voltage of the first electrode 14 according to the frequency detection signal.

[0391] In this embodiment, the frequency adjustment unit 1081 can play a key role in the operation of the RF working module 106. The frequency adjustment unit 1081 can receive the frequency detection signal from the RF signal detection module 1010 to detect the operating frequency of the RF working module 106, and adjust the operating voltage of the first electrode 14 based on the RF working module 106, thereby adjusting the frequency of the RF signal output by the RF working module 106.

[0392] The frequency adjustment unit 1081 receives a frequency detection signal input by the RF signal detection module 1010. The frequency detection signal may include information about the frequency of the RF signal currently output by the RF working module 106. After receiving the information about the RF signal frequency, the controller 108 may determine the real-time working status of the RF working module 106, such as changes in the RF signal frequency. Specifically, adjusting the operating voltage of the first electrode 14 according to the frequency detection signal may directly affect the frequency of the RF signal output by the RF working module 106. There is a corresponding relationship between the operating voltage of the first electrode 14 and the frequency of the RF signal. By adjusting the operating voltage of the first electrode 14, the generation mechanism of the RF signal may be changed, thereby adjusting the frequency of the RF signal.

[0393] It should be noted that adjusting the operating voltage of the first electrode 14 to control the frequency of the RF signal can optimize the skin care effect. Different skin conditions and care needs may require RF signals of different frequencies. By precisely adjusting the operating voltage of the electrode to control the frequency of the RF signal, the RF working module 106 can output the RF signal that best suits the current skin care needs. Thus, the frequency adjustment unit 1081 in the controller 108 of the skin care device 100 can receive the frequency detection signal input by the RF signal detection module 1010 and adjust the operating voltage of the first electrode 14 based on the signal, thereby achieving precise control of the frequency of the RF signal output by the RF working module 106. This helps to optimize the skin care effect, meet the needs of different users, and ensure the stable operation of the device.

[0394] In some embodiments, the skin care device 100 further includes a cooling element 30 , which is electrically connected to the controller 108 and is configured to generate cooling energy to cool the skin during and / or after the operation of the RF working module 106 and the optical working module 107 .

[0395] The refrigeration element 30 is electrically connected to the controller 108, so that the controller 108 can effectively control the refrigeration element 30. Through the electrical connection, the controller 108 can send instructions to start or stop the refrigeration element 30 and adjust the operating parameters of the refrigeration element 30, such as the cooling intensity.

[0396] The main function of the cooling element 30 is to generate cooling energy during and / or after the operation of the RF working module 106 and the optical working module 107. This cooling energy can cool the skin, thereby cooling and soothing the skin during and / or after the operation of the skin care device 100.

[0397] For example, when the RF working module 106 and the light working module 107 are operating, the skin may heat up due to the thermal effects of the RF current and the thermal effects of light irradiation. The cooling energy generated by the refrigeration element 30 can promptly reduce the temperature of the skin to prevent the skin from overheating and being damaged. At the same time, the cooling energy can also alleviate the discomfort of the skin during the care process and improve the user experience. When the RF working module 106 and the light working module 107 are operating, the cooling energy generated by the refrigeration element 30 can cool the skin in real time. The RF current and light irradiation may increase the skin temperature, but the cooling energy can offset this thermal effect and keep the skin temperature within a relatively stable range.

[0398] After the RF module 106 and the optical module 107 have completed their operations, the cooling energy generated by the refrigeration element 30 can continue to cool the skin. This helps the skin return to its normal temperature and reduces discomfort after the treatment. For example, after phototherapy, the skin may experience slight warmth and redness due to the light exposure. The cooling energy from the refrigeration element 30 can alleviate this phenomenon, allowing the skin to return to normal more quickly. Furthermore, the cooling energy can promote skin metabolism and enhance the skin's self-repair ability.

[0399] Please continue to refer to Figure 19 In some embodiments, the skin care device 100 further includes a controller 108, which is electrically connected to the light-emitting device 13 and the cooling element 30. The controller 108 switches and adjusts the working mode of the skin care device 100 between at least two working modes, wherein in at least one working mode, the light-emitting device 13 works to care for the skin, and in at least one working mode, the cooling element 30 works while the light-emitting device 13 does not work to care for the skin.

[0400] The controller 108 is electrically connected to the light-emitting device 13 and the cooling element 30, and can adjust the operating state of the device according to the mode selected by the user, so that the skin care device 100 can flexibly switch between light care, current care, and cold compress care to meet different skin care needs. Specifically, in this embodiment, the controller 108 can be implemented using various types of control chips or integrated circuits (ICs). Common options include microcontroller 108 (MCU) chips, such as STMicroelectronics' STM32 series or Microchip's PIC series, which can be programmed to flexibly control the switching and mode switching of the light-emitting device 13 and the cooling element 30. In addition, a dedicated power management chip (PMIC) can also be used to handle power distribution and switching, such as Texas Instruments' TPS series or Analog Devices' ADP series. These chips can effectively manage multiple power supplies and perform mode conversion.

[0401] Furthermore, preset mode programs can be burned into the microcontroller 108 (MCU) or other programmable chip used in the controller 108. By pre-programming and burning different mode programs, the device can automatically switch between various functional modes, such as light therapy, current therapy, cold therapy, or comprehensive therapy. These mode programs can be customized according to user needs and selected and switched through buttons or other input methods in the controller 108, making the device easier to operate and more functional.

[0402] During actual use, the user can select different care modes through the controller 108. For example, in the light care mode, the light emitting device 13 turns on and transmits light of a specific wavelength to the skin through the first light-transmitting element 12. The first light-transmitting element 12 effectively conducts light to provide deep skin care. Simultaneously, the cooling element 30 operates simultaneously, rapidly absorbing and dissipating heat generated by the light through a thermal connection with the first light-transmitting element 12. This prevents overheating of the first light-transmitting element 12 due to prolonged exposure, preventing potential skin burns caused by overheating and significantly enhancing user comfort while using the product.

[0403] When switching to the cold compress function mode, the controller 108 will turn off the light-emitting device 13 and only keep the refrigeration element 30 working. The temperature of the first light-transmitting element 12 will be further reduced, and the device will only apply a cold compress to the skin through the cooled first light-transmitting element 12. This function is particularly suitable for use after light care, and can quickly calm the skin and reduce the heat sensation and discomfort after light exposure. In addition, the user can also choose a comprehensive care mode. In this mode, the light-emitting device 13 and the refrigeration element 30 work simultaneously. While providing light and microcurrent care, the device also continuously cools the first light-transmitting element 12 to ensure the comfort and safety of long-term care. The flexible switching of multiple modes enables the skin care device 100 to not only have light and current care functions, but also provide cold compress care. This allows users to use the separate cold compress function to lower skin temperature, calm the skin, reduce the probability of skin allergies, and improve the user's skin comfort during skin care, greatly expanding the application scenarios and usage effects of the device.

[0404] In the technical solution of this embodiment, a controller 108 is provided to switch the operating mode of the skin care device 100 between at least two operating modes. In at least one operating mode, the light-emitting device 13 operates to provide skin care, and in at least one operating mode, the cooling element 30 operates while the light-emitting device 13 does not operate, allowing the cooling element 30 to provide a cooling compress for the skin alone. During use, the controller 108 can control the cooling element 30 to absorb heat from the first light-transmitting element 12 to cool the skin, thereby avoiding overheating and burns to the user's skin caused by prolonged use, thereby improving user comfort when using the product. Furthermore, through the configuration of the controller 108, the skin care device 100 can be switched to either a cooling compress function or a light care function, allowing the user to use the cooling compress function alone to lower skin temperature, calm the skin, reduce the likelihood of skin allergies, and improve skin comfort.

[0405] In some embodiments, the controller 108 switches and adjusts the working mode of the skin care device 100 between at least two working modes: in the first mode, the controller 108 controls the light-emitting device 13 to work and the refrigeration component 30 to cool the first light-transmitting component 12; in the second working mode, the controller 108 controls the refrigeration component 30 to cool the first light-transmitting component 12.

[0406] In this embodiment, the controller 108 of the skin care device 100 is further optimized to more flexibly control the device's functions in different operating modes. Specifically, the controller 108 can switch and adjust between at least two operating modes to meet the user's different skin care needs.

[0407] In the first operating mode, controller 108 simultaneously activates the light-emitting device 13 and the cooling element 30, causing the light-emitting device 13 to emit light of a specific wavelength, which then transmits light to the skin through the first light-transmitting element 12. Simultaneously, the cooling element 30, through its thermal connection to the first light-transmitting element 12, absorbs heat generated by the light in real time, ensuring that the temperature of the first light-transmitting element 12 remains low, thus preventing overheating. This simultaneous light therapy and cold compress mode provides effective light care while preventing skin discomfort caused by prolonged light exposure, enhancing the overall care effect and user experience.

[0408] In the second operating mode, controller 108 turns off light-emitting device 13, leaving only cooling element 30 operational, maintaining the first light-transmitting element 12 at a low temperature. This mode is primarily used to provide a simple cooling compress after phototherapy, helping to calm the skin and alleviate the sensation of heat and discomfort that can occur after light exposure. The continuous cooling provided by cooling element 30 effectively reduces the risk of burns from prolonged light exposure, further enhancing device safety.

[0409] This embodiment enables users to enjoy a more balanced and comfortable skincare experience by simultaneously activating both the light therapy and cold compress functions in the first operating mode. The second operating mode focuses on the cold compress function, providing immediate soothing care after the light therapy session. This mode configuration balances effective skincare results with user comfort and safety. By switching between these modes, the skincare device 100 can more flexibly adapt to the varying needs of users, increasing its functionality and ease of use.

[0410] See Figure 19 In this embodiment, the controller 108 is also electrically connected to the first electrode 14. The controller 108 can incorporate the functions of the first electrode 14 into different operating modes. For example, in the first mode, the light-emitting device 13 and the cooling element 30 operate simultaneously, while the first electrode 14 outputs microcurrent and / or radiofrequency current to achieve synchronized phototherapy and electrotherapy care, further enhancing the care effect. In the second mode, the light-emitting device 13 is turned off, and the cooling element 30 and the first electrode 14 operate simultaneously, providing combined cold compress and electrotherapy care to achieve the dual effects of calming the skin and deep stimulation. During the switching process between these modes, the operation of the first electrode 14 coordinates with the phototherapy and cold compress functions to achieve more comprehensive skin care.

[0411] By adding the first electrode 14 , the skin care device 100 in this embodiment can not only provide a variety of care modes, but also better meet the user's demand for comprehensive skin care effects, thereby enhancing the practicality and market competitiveness of the device.

[0412] Furthermore, in the first mode, the controller 108 controls the light emitting device 13 to operate, the cooling element 30 to cool the first light-transmitting element 12 , and controls the first electrode 14 to output a micro-current.

[0413] In this embodiment, the light-emitting device 13 emits light of a specific wavelength through the first light-transmitting element 12 to provide phototherapy treatment for the skin. Phototherapy stimulates skin cells, promotes blood circulation and collagen production, and helps improve skin texture and reduce fine lines. Simultaneously, the cooling element 30 is thermally connected to the first light-transmitting element 12, continuously cooling it through a cooling mechanism. This ensures that the temperature of the first light-transmitting element 12 does not rise excessively during phototherapy, preventing skin discomfort or burns caused by prolonged use.

[0414] The addition of the first electrode 14 makes the care process more comprehensive. In the first mode, the first electrode 14 is activated, outputting a microcurrent to the skin. Microcurrent can mimic bioelectrical current, gently stimulating skin cells, promoting cell metabolism, and accelerating skin repair. When used in combination with phototherapy, microcurrent can also enhance the effects of phototherapy, allowing light to penetrate deeper into the skin for more significant cosmetic results. Through the simultaneous action of microcurrent and phototherapy, the skin can be effectively repaired and regenerated under the stimulation of light, while also experiencing the firming and lifting effects brought by the microcurrent.

[0415] The first mode in this embodiment takes into account the synergistic effects of multiple treatment methods, leveraging the advantages of light therapy, microcurrent, and cold compresses to provide a comprehensive skin care solution. When using this mode, users not only receive the dual benefits of light therapy and electrotherapy, but also, with the assistance of cold compresses, effectively avoid heat accumulation caused by the device, improving comfort and safety during use.

[0416] Furthermore, in this embodiment, the controller 108 also includes a third working mode of controlling the operation of the light-emitting device 13 and the output of microcurrent by the first electrode 14; wherein, the switching control controls the intensity of the microcurrent output by the first electrode 14 in the first mode to be less than the intensity of the microcurrent output by the first electrode 14 in the third mode, and the controller 108 controls the energy of the light output by the light-emitting device 13 in the first mode to be greater than the energy of the light output by the light-emitting device 13 in the third mode.

[0417] In this embodiment, the controller 108 of the skin care device 100 is provided with a third operating mode to meet the diverse skin care needs of the user. Specifically, the controller 108 can switch and adjust between the first, second and third operating modes to achieve different function combinations and care effects.

[0418] In the third operating mode, controller 108 controls both the light-emitting device 13 and the first electrode 14, but the parameters differ from those in the first operating mode. The microcurrent output by the first electrode 14 is now higher in intensity than in the first operating mode, providing deeper skin stimulation and a lifting effect. Simultaneously, the light energy output by the light-emitting device 13 is lower than in the first operating mode, primarily serving a supporting role, enhancing the microcurrent effect while preventing excessive light stimulation.

[0419] In this configuration, the first operating mode primarily focuses on phototherapy. The light-emitting device 13 outputs light of a specific wavelength at a high energy level, irradiating the skin through the first light-transmitting element 12 to achieve skin whitening, dark spot reduction, and collagen production-boosting effects. In this mode, the first electrode 14 outputs a low-intensity microcurrent to assist with the phototherapy process and enhance the overall effectiveness of the treatment. Simultaneously, the cooling element 30 cools the first light-transmitting element 12, ensuring comfort and safety during use.

[0420] Correspondingly, the third working mode focuses more on microcurrent therapy. The first electrode 14 acts on the skin with a relatively high microcurrent intensity, which can effectively stimulate muscles and deep tissues, achieving the effects of tightening the skin, lifting facial contours and reducing fine lines. At this time, the light-emitting device 13 outputs light at a lower light energy to assist microcurrent therapy, promote the skin's response to microcurrent, and improve the overall effect of care. In addition, the lower light energy output can also prevent the skin from being exposed to excessive light, which is suitable for users who are sensitive to light or specific care scenarios. In this mode, the refrigeration component 30 can selectively work as needed to provide a comfortable cold compress effect and further enhance the user experience.

[0421] By adjusting the operating parameters of the light-emitting device 13 and the first electrode 14 in different modes, the controller 108 can precisely control the functional output of the skin care device 100 to meet the user's diverse care needs at different times and under different skin conditions. For example, for daily basic care, the user can select the first operating mode to use high-energy light therapy for comprehensive skin care; when focusing on improving skin firmness, the user can select the third operating mode to fully utilize high-intensity microcurrent for intensive care.

[0422] Furthermore, the controller 108 can be pre-programmed with various operating modes, allowing users to easily switch between them through simple button or touch operations. This design enhances the device's usability and intelligence, allowing users to flexibly select the most appropriate care plan based on their needs, achieving optimal skin care results.

[0423] In some embodiments, the controller 108 switches and adjusts the working mode of the skin care device 100 between at least three working modes: the controller 108 controls the first electrode 14 to output microcurrent and radio frequency current, the light-emitting device 13 to emit light with a wavelength between 630nm and 1940nm, and the refrigeration component 30 to cool the first light-transmitting component 12. The controller 108 controls the first electrode 14 to output microcurrent, the light-emitting device 13 to emit light with a wavelength between 630nm and 1940nm, and the refrigeration component 30 to cool the first light-transmitting component 12. The controller 108 controls the refrigeration component 30 to work while the first electrode 14 and the light-emitting device 13 do not work.

[0424] In the first working mode of this embodiment, the controller 108 simultaneously activates the first electrode 14, the light-emitting device 13 and the cooling element 30. In this mode, the first electrode 14 outputs microcurrent and radiofrequency current, which, combined with the deep thermal effect of the radiofrequency current and the cell stimulation of the microcurrent, can significantly improve the firmness and elasticity of the skin. The light-emitting device 13 emits specific light with a wavelength in the range of 630nm to 1940nm, which is irradiated onto the skin through the first light-transmitting element 12 to achieve phototherapy effects, such as promoting collagen production, improving skin pigmentation and dullness, etc. At the same time, the cooling element 30 cools the first light-transmitting element 12 through a thermal connection with the first light-transmitting element 12, ensuring that the first light-transmitting element 12 does not overheat during the operation of the light-emitting device 13, thereby improving the comfort of the user.

[0425] In the second operating mode, the controller 108 controls the first electrode 14 to output a microcurrent, while the light-emitting device 13 and the cooling element 30 continue to operate. This mode mainly uses the output of microcurrent to provide relatively mild skin stimulation and is suitable for daily basic care. Microcurrent at a lower current intensity can promote the vitality of skin cells and enhance the absorption effect of skin care products, while the light-emitting device 13 still emits light with a wavelength between 630nm and 1940nm for auxiliary phototherapy, helping to improve skin texture and radiance. The cooling element 30 continues to operate to maintain the appropriate temperature of the first light-transmitting element 12 to prevent excessive heat accumulation in the skin due to phototherapy.

[0426] In the third operating mode, controller 108 controls only the cooling element 30, while the first electrode 14 and light-emitting device 13 are deactivated. This mode focuses on cold compress care and is suitable for calming the skin after phototherapy or electrotherapy. The continuous cooling of the first light-transmitting element 12 by the cooling element 30 effectively alleviates the skin's heat and discomfort after phototherapy or electrical stimulation, providing a comfortable cold compress experience. This mode is particularly suitable for users with sensitive skin, or for use as a cooling and calming process after phototherapy or electrotherapy.

[0427] By combining these three operating modes, the skin care device 100 can provide personalized care solutions for different usage scenarios. For example, when a user needs intensive care, they can select the first operating mode, which utilizes the combined effects of radiofrequency current, microcurrent, and light therapy for intensive care. For daily care, they can select the second operating mode, which primarily utilizes microcurrent and light therapy for gentle care. When calming and cooling compresses are needed, the user can select the third operating mode, which provides the soothing effect of cooling compresses.

[0428] Furthermore, the frequency of the radio frequency current in the first mode is in the range of 0.8 MHz to 3.5 MHz.

[0429] In the first operating mode of this embodiment, controller 108 controls first electrode 14 to output radiofrequency current within a frequency range of 0.8 MHz to 3.5 MHz. This radiofrequency current generates deep thermal effects within the skin, effectively stimulating collagen production, promoting the repair and regeneration of skin cells, and improving skin firmness and elasticity.

[0430] The frequency range of 0.8MHz to 3.5MHz is chosen because it penetrates deep into the dermis, producing a gentle and lasting thermal effect. This not only tightens sagging skin but also reduces fine lines and wrinkles, improving the skin's overall texture. Furthermore, this frequency range is gentle on the skin and unlikely to cause discomfort, making it suitable for most skin types. This ensures effective care while ensuring a comfortable user experience.

[0431] See Figure 32 and Figure 33 In this embodiment, the skin care device 100 also includes a mode adjustment device 1011. The mode adjustment device 1011 is at least partially exposed in the housing 11 for operation by an operator to control the controller 108 to switch the working mode of the skin care device 100 between at least three working modes. The mode adjustment device 1011 is one of a button, a knob, a dial, and a touch screen.

[0432] The mode adjustment device 1011 is at least partially exposed outside the housing 11, making it easy for the operator to operate. Through the mode adjustment device 1011, the user can easily control the controller 108 to switch and adjust the operating mode of the skin care device 100 between at least three operating modes.

[0433] Specifically, the mode adjustment device 1011 can be designed as a button, knob, dial, or touch screen, providing a variety of operation methods based on different usage scenarios and user habits. For example, the button design is simple and intuitive, suitable for rapid mode switching; the knob or dial provides more precise mode selection, allowing users to gradually adjust to the desired mode; and the touch screen can display detailed information about each mode, providing a more intelligent and interactive operation experience.

[0434] In this embodiment, the introduction of the mode adjustment device 1011 improves the user-friendliness of the device, allowing the operator to quickly and easily switch the device's operating mode, whether it is light therapy, electrotherapy, cold compress, etc. This design not only improves the device's operational convenience, but also enhances the user experience.

[0435] See Figure 33 In this embodiment, the skin care device 100 further includes a mode indicator light 1012 . The mode indicator light 1012 is disposed on the housing 11 and close to the mode adjustment device 1011 . The mode indicator light 1012 is used to indicate at least two working modes of the skin care device 100 .

[0436] The mode indicator light 1012 can be provided on the housing 11 and positioned near the mode adjustment device 1011, so that the user can intuitively check the current operating mode of the device during operation. The mode indicator light 1012 is designed to be used in conjunction with the mode adjustment device 1011 (such as a button, knob, or dial) to ensure that the user can easily confirm the current device status when switching operating modes.

[0437] Specifically, there are at least two arrangements of the mode indicator light 1012:

[0438] 1. The first arrangement employs three different mode markings on the housing 11, each corresponding to a separate mode indicator 1012. When the user switches to a mode using the mode adjustment device 1011, the corresponding mode indicator 1012 illuminates, clearly indicating the currently selected mode. This arrangement is intuitive and suitable for users who require quick identification and operation.

[0439] 2. In the second arrangement, the mode indicator light 1012 uses at least three different colors to indicate different operating modes. As the user switches modes, the color of the indicator light changes accordingly, for example, red for the first mode, blue for the second mode, and green for the third mode. This multi-colored indicator design is not only aesthetically pleasing but also provides clear mode indication in a compact space.

[0440] As for the device selection of mode indicator light 1012, an LED lamp can be used. This type of lamp has the characteristics of high brightness, low energy consumption and long life, which is very suitable for portable devices. The LED lamp can also switch between multiple colors, further enhancing the user experience of the device.

[0441] Through this design, the skin care device 100 in this embodiment can effectively indicate the current working mode through the intuitive mode indicator light 1012 during use, allowing users to operate more clearly and accurately, thereby improving the usability and overall experience of the device.

[0442] Please refer to Figures 34 to 37 The outer shell 11 includes a first shell segment 101 and a second shell segment 102. A contraction portion 103 is formed between the first shell segment 101 and the second shell segment 102, and the cross-section is contracted inward relative to the first shell segment 101 and the second shell segment 102. The first shell segment 101 extends from the contraction portion 103 along a first direction, and the second shell segment 102 extends from the contraction portion 103 along a second direction different from the first direction. The contraction portion 103 is formed at least partially for a person to hold by hand for nursing work. A working head 112 is provided at one end of the first shell segment 101 away from the contraction portion 103. The working head 112 is formed with a working surface 1120 for contacting the skin. A line connecting the center of the working surface 1120 and the center of the minimum cross-section of the contraction portion 103 forms an angle greater than 0° and less than or equal to 90° with the working surface 1120. The light-emitting device 13 is provided in the first shell segment 101.

[0443] In some embodiments, the housing 11 is Z-shaped or S-shaped, which is beautiful and unique, and is easier to hold. The multiple bends can provide a variety of holding methods.

[0444] In this embodiment, the cross section refers to a cross section of the housing 11 taken along a plane passing through the center of the working surface 1120 and the center of the smallest cross section of the contraction portion 103, and perpendicular to the working surface 1120. For example, if the skin care device 100 has a symmetrical structure, the plane passing through the center of the working surface 1120 and the center of the smallest cross section of the contraction portion 103, and perpendicular to the working surface 1120, will be the plane of symmetry of the skin care device 100.

[0445] A contraction portion 103 is formed between the first shell segment 101 and the second shell segment 102, and its cross-section is contracted inward relative to the first shell segment 101 and the second shell segment 102. This means that the cross-section obtained on the contraction portion 103 by a plane passing through the center of the working surface 1120 and the center of the minimum cross-section of the contraction portion 103 and perpendicular to the working surface 1120 is contracted inward relative to the cross-section obtained on the first shell segment 101 and the second shell segment 102 on this plane.

[0446] In this embodiment, the housing 11 includes a three-section structure consisting of a first housing segment 101, a contraction portion 103, and a second housing segment 102. In the three-section structure, the first housing segment 101 and the second housing segment 102 extend in two different directions, respectively, and the contraction portion 103 located in the middle is at least partially grippable. This arrangement not only facilitates gripping of the housing 11, but also utilizes the inflection points between the first housing segment 101 and the contraction portion 103, as well as the inflection points between the contraction portion 103 and the second housing segment 102, to reduce the probability of a user slipping while gripping the skin care device 100.

[0447] Furthermore, the first shell segment 101 extends from the contraction portion 103 along a first direction, and the second shell segment 102 extends from the contraction portion 103 along a second direction different from the first direction. With the center point of the minimum cross section of the contraction segment as the origin, a rectangular coordinate system is established with the X axis perpendicular to the center plane. Figure 4 As shown, the line segment obtained by connecting the center point of the minimum cross section of the contraction section on the first shell section 101 and the center of the working surface 1120, the direction extending from the contraction portion 103 to the working head 112 is the first direction. In one embodiment, referring to Figure 37 The first direction is marked as F1; the line segment obtained by connecting the center point of the minimum cross section of the second shell segment 102 along the contraction section and the center point of the minimum cross section of the end of the second shell segment 102 in a plane parallel to the working surface 1120, extending from the contraction portion 103 to the end of the second shell segment 102 away from the contraction portion 103 is the second direction. In one embodiment, refer to Figure 37 The second direction is marked as F2. The first shell segment 101 extending from the contraction portion 103 along the first direction means a direction parallel to or at an angle to the first direction, that is, a direction at a certain angle (e.g., within 5°, 20°, etc.) relative to the first direction. As long as the first shell segment 101 extends along the first direction, it will be sufficient. The second shell segment 102 extending from the contraction portion 103 along the second direction means a direction parallel to or at an angle to the second direction, that is, a direction at a certain angle (e.g., within 5°, 20°, etc.) relative to the second direction. As long as the second shell segment 102 extends along the second direction, it will be sufficient.

[0448] Furthermore, when the user holds the partial contraction portion 103, the palm of the user naturally fits the second shell segment 102 extending outward from the contraction portion 103, thereby improving the comfort of holding. When the contraction portion 103 and the second shell segment 102 are driven by the palm of the hand, the working surface 1120 is moved on the face or other skin parts for skin treatment; this zigzag extension structure is also beneficial for reducing the contact area between the outer shell 11 and the table when it is placed on the table, thereby reducing the probability of accidental touching of the control buttons provided on the surface of the outer shell 11; the cross-section of the contraction portion 103 is inwardly contracted compared to the first shell segment 101 and the second shell segment 102, which is beneficial for reducing the size of the outer shell 11 extending in a single direction, thereby reducing the space occupied by the skin care device 100.

[0449] Furthermore, when the line connecting the center of the working surface 1120 and the center of the minimum cross-section of the contraction portion 103 forms an angle with the working surface 1120, the working head 112 is tilted relative to the extension direction of the first shell segment 101, which can lower the hand position of the user when holding the skin care device 100.

[0450] In some embodiments, the outer shell 11 forms a concave surface 1030 on at least one side portion between the first shell segment 101 and the second shell segment 102 , which is concave relative to the first shell segment 101 and the second shell segment 102 to form a contraction portion 103 .

[0451] Furthermore, the side forming the recessed surface 1030 can be set to one or more, and the recessed surface 1030 can accommodate human fingers, increasing the holding methods of the shell 11. The user can use the skin care device 100 of the present application alternately in multiple ways to avoid fatigue caused by a single method.

[0452] In one embodiment, referring to Figures 34 to 36 ; The four side portions between the first shell section 101 and the second shell section 102 of the skin care device 100 in the figure all present recessed surfaces 1030, and these recessed surfaces 1030 form a contraction portion 103 located between the first shell section 101 and the second shell section 102; when the user holds the skin care device 100, the working surface 1120 is facing the user's face as the front side. In the skin care device 100, the two recessed surfaces 1030 on the left and right opposite sides are symmetrically arranged, with an aesthetically pleasing shape, while ensuring consistent comfort when the left and right hands hold the skin care device 100.

[0453] In one embodiment, referring to Figure 38 and Figure 39 , Figure 38 shows a schematic diagram of the overall structure of the skin care device 100, Figure 39A side view of the skin care device 100 is shown; in the figure, the four side portions between the first shell segment 101 and the second shell segment 102 of the skin care device 100 are all recessed to varying degrees to form recessed surfaces 1030, which form a contraction portion 103 located between the first shell segment 101 and the second shell segment 102.

[0454] In some embodiments, reference Figures 34 to 36 The housing 11 has a first side portion 11a, a second side portion 11b, a third side portion 11c and a fourth side portion 11d arranged in sequence along the circumferential direction. The first side portion 11a and the third side portion 11c are arranged opposite to each other at intervals, and the second side portion 11b and the fourth side portion 11d are arranged opposite to each other at intervals.

[0455] The first side portion 11a and the third side portion 11c both form a recessed surface 1030 between the first shell segment 101 and the second shell segment 102; and / or the second side portion 11b and the fourth side portion 11d both form a recessed surface 1030 between the first shell segment 101 and the second shell segment 102.

[0456] Further, refer to Figures 34 to 36 The first side portion 11a, the second side portion 11b, the third side portion 11c and the fourth side portion 11d are circumferentially connected, and the lines of the connection are smooth and the surface is smooth to ensure comfort of use; the first side portion 11a and the third side portion 11c both form a recessed surface 1030 between the first shell segment 101 and the second shell segment 102; and / or, the second side portion 11b and the fourth side portion 11d both form a recessed surface 1030 between the first shell segment 101 and the second shell segment 102; the left and right sides and / or the upper and lower sides of the outer shell 11 are recessed to form a recess, further reducing the size of this section of the outer shell 11 and providing a larger gripping surface, which is convenient for users with different palm sizes or different left-hand usage habits to use with one hand; and the symmetrical arrangement of the recessed surface 1030 is also conducive to improving the overall aesthetics of the outer shell 11.

[0457] In some embodiments, the concave surface 1030 is a concave curved surface.

[0458] Furthermore, the curved surface portion of the concave curved surface may include an arc surface or a spherical surface with a naturally distributed curvature. Such a setting can better connect the bending directions of the first shell segment 101 and the second shell segment 102, and can also improve the comfort of the human hand when operating or changing the holding method on the concave curved surface.

[0459] In one embodiment, referring to Figures 34 to 36; The first side 11a, the second side 11b, the third side 11c and the fourth side 11d of the skin care device 100 in the figure are all formed with a recessed surface 1030, and the recessed surfaces 1030 of the four are circumferentially connected in sequence to form a contraction portion 103; wherein, the recessed surfaces 1030 on the first side 11a and the third side 11c are both concave arc surfaces and have the same curvature, and the curvature is large, which can provide a gripping space for the user's fingers; the recessed surfaces 1030 on the second side 11b and the fourth side 11d are both concave arc surfaces, but the concave curvature is small, so that the first shell section 101 and the second shell section 102 are smoothly connected, and a relatively smooth outer surface is maintained on the second side 11b and the fourth side 11d.

[0460] In one embodiment, referring to Figure 38 and Figure 39 In the figure, the first side portion 11a, the second side portion 11b, the third side portion 11c and the fourth side portion 11d of the skin care device 100 are all formed with a concave surface 1030, and the concave surfaces 1030 of the four are sequentially connected circumferentially to form a contraction portion 103; wherein, the curvature of the concave surface 1030 on the second side portion 11b is much greater than the curvature of the concave surfaces 1030 on the other side portions, so as to accommodate the user's finger part. When the user holds the contraction portion 103 or the second shell segment 102 The concave surface 1030 on the second side portion 11b is used to fit the user's fingers, providing gripping space for the fingers, making gripping more effortless and comfortable; and the concave surface 1030 on the fourth side portion 11d has a smaller curvature, which is used to connect the first shell segment 101 and the second shell segment 102, so that the fourth side portion 11d maintains a smooth outer surface. The curvature of the fourth side portion 11d is naturally distributed, which makes it easier for the fourth side portion 11d to fit the palm of the user's hand, thereby improving comfort during operation.

[0461] In some embodiments, with the center of the smallest cross-section of the contraction portion 103 as the origin, the first shell segment 101 is at least partially located in the second quadrant, and the second shell segment 102 is partially located in the first quadrant and the rest is located in the fourth quadrant.

[0462] Furthermore, the first shell segment 101 and the second shell segment 102 are distributed in a variety of ways in space, and a rectangular coordinate system is established with the center of the minimum cross-section of the contraction portion 103 as the origin. In the rectangular coordinate system, the working surface 1120 is arranged perpendicular to the X-axis;

[0463] It should be noted that the first shell segment 101 being at least partially located in the second quadrant means that more than half of the area of ​​a cross section of the first shell segment 101 obtained by a plane passing through the center of the working surface 1120, the center of the minimum cross section of the contraction portion 103, and perpendicular to the working surface 1120 falls within the second quadrant. The first shell segment 101 being at least partially located in the second quadrant may mean that most of the first shell segment 101 is located in the second quadrant, or the first shell segment 101 is completely located in the second quadrant.

[0464] The second shell segment 102 is partially located in the first quadrant and the rest is located in the fourth quadrant, which means that a cross-section obtained on the second shell segment 102 through the center of the working surface 1120, the center of the minimum cross-section of the contraction portion 103 and a surface perpendicular to the working surface 1120 is at least partially located in the first quadrant, and the rest is located in the fourth quadrant.

[0465] In one embodiment, combining Figure 40 As shown, Figure 40 This is a simplified side view of the shell 11 of an embodiment of the skin care device 100; in the rectangular coordinate system in the figure, most of the first shell segment 101 is located in the second quadrant, and the second shell segment 102 extends from the origin along the positive direction of the X-axis, part of the second shell segment 102 is located in the first quadrant and the rest is located in the fourth quadrant; when the user holds the shell 11 for care work, he will also tend to keep the second shell segment 102 horizontal; at this time, the first shell segment 101 and the second shell segment 102 are in two adjacent quadrants, and the extension direction of the first shell segment 101 forms an inclination angle greater than 90 degrees and less than 180 degrees relative to the extension direction of the second shell segment 102. Maintaining a suitable angle between the first shell segment 101 and the second shell segment 102 can, on the one hand, conform to the holding habit of the human hand and improve comfort, and on the other hand, make it more labor-saving to move the shell 11 for care work.

[0466] In some embodiments, with the center of the smallest cross-section of the contraction portion 103 as the origin, the first shell segment 101 is at least partially located in the second quadrant, and the second shell segment 102 is located in the fourth quadrant;

[0467] Furthermore, a rectangular coordinate system is established with the center of the minimum cross-section of the contraction portion 103 as the origin. In the rectangular coordinate system, the working surface 1120 is set perpendicular to the X-axis, and the center of the minimum cross-section of the contraction portion 103 is taken as the origin. The four areas are defined as the first quadrant, the second quadrant, the third quadrant, and the fourth quadrant from the upper right in a counterclockwise direction.

[0468] It should be noted that the second shell segment 102 being located in the fourth quadrant means that a cross section obtained on the second shell segment 102 through the center of the working surface 1120, the center of the minimum cross section of the contraction portion 103 and a plane perpendicular to the working surface 1120 is completely located in the fourth quadrant.

[0469] In one embodiment, combining Figure 39 As shown, the first shell segment 101 extends along the negative direction of the X-axis, part of the first shell segment 101 is located in the second quadrant and the rest is located in the third quadrant, and the second shell segment 102 is completely located in the fourth quadrant; in this embodiment, the angle formed between the first direction and the second direction is greater than 90 degrees and less than 180 degrees; the angle can be selected at a suitable angle, such as 120 degrees, 130 degrees, 135 degrees, etc., which can avoid the user raising the arm too high when using the skin care device 100, thereby ensuring comfort of use.

[0470] In one embodiment, combining Figure 41 As shown, Figure 41 This is a simplified side view of the shell 11 of an embodiment of the skin care device 100; in the rectangular coordinate system in the figure, the first shell segment 101 is completely located in the second quadrant, and the second shell segment 102 is completely located in the fourth quadrant; the extension directions of the first shell segment 101 and the second shell segment 102 are parallel or nearly parallel.

[0471] In some embodiments, with the center of the smallest cross-section of the contraction portion 103 as the origin, the first shell segment 101 is at least partially located in the second quadrant, the second shell segment 102 is partially located in the third quadrant and the rest is located in the fourth quadrant;

[0472] Furthermore, a rectangular coordinate system is established with the center of the minimum cross-section of the contraction portion 103 as the origin, in which the working surface 1120 is arranged perpendicular to the X-axis; it should be noted that part of the second shell segment 102 is located in the third quadrant and the rest is located in the fourth quadrant, which means that the cross-sectional portion obtained on the second shell segment 102 by a surface passing through the center of the working surface 1120, the center of the minimum cross-section of the contraction portion 103 and perpendicular to the working surface 1120 is located in the third quadrant, and the rest are all located in the fourth quadrant.

[0473] In one embodiment, combining Figure 37 As shown, in the rectangular coordinate system in the figure, most of the first shell segment 101 is located in the second quadrant, and a small part is located in the first quadrant; most of the second shell segment 102 is located in the fourth quadrant, and a small part is located in the third quadrant; an acute internal angle is formed between the extension directions of the first shell segment 101 and the second shell segment 102; under this embodiment, a large bending distance is retained between the first shell segment 101 and the second shell segment 102, and the torque formed is relatively large, which can make the holding and use of the skin care device 100 more labor-saving.

[0474] In one embodiment, combining Figure 42 As shown, Figure 42This is a simplified side view of the shell 11 of an embodiment of the skin care device 100; in the rectangular coordinate system in the figure, most of the first shell segment 101 is located in the second quadrant, and a small part is located in the first quadrant; most of the second shell segment 102 is located in the fourth quadrant, and a small part is located in the third quadrant, and the extension direction of the second shell segment 102 is close to the negative direction of the Y-axis. When the user holds the shell 11 for care work, he will tend to keep the second shell segment 102 vertical. Under this embodiment, the user can avoid holding his hand too high when using the skin care device 100, and holding it is more labor-saving.

[0475] In one embodiment, combining Figure 43 As shown, Figure 43 This is a simplified side view of the shell 11 of an embodiment of the skin care device 100; in the rectangular coordinate system in the figure, most of the first shell segment 101 is located in the second quadrant, and a small part is located in the first quadrant; most of the second shell segment 102 is located in the third quadrant, and a small part is located in the fourth quadrant, and the angle between the second shell segment 102 and the first shell segment 101 is not less than 90°; a certain bending angle is formed between the first shell segment 101 and the second shell segment 102 for the user to hold the shell 11 for care work.

[0476] In some embodiments, with the center of the minimum cross-section of the contraction portion 103 as the origin, the first shell segment 101 is at least partially located in the second quadrant, the second shell segment 102 is located in the third quadrant, and the angle formed between the first direction and the second direction is greater than or equal to 45°;

[0477] Furthermore, a rectangular coordinate system is established with the center of the minimum cross-section of the contraction portion 103 as the origin, in which the working surface 1120 is arranged perpendicular to the X-axis; it should be noted that the second shell segment 102 is located in the third quadrant means that: the cross-section obtained on the second shell segment 102 by a surface passing through the center of the working surface 1120, the center of the minimum cross-section of the contraction portion 103 and perpendicular to the working surface 1120 is completely located in the third quadrant.

[0478] In one embodiment, combining Figure 44 As shown, Figure 44 This is a simplified side view of the shell 11 of an embodiment of the skin care device 100; in the rectangular coordinate system in the figure, most of the first shell segment 101 is located in the second quadrant, and a small part is located in the first quadrant; most of the second shell segment 102 is located in the third quadrant, and a small part is located in the fourth quadrant; in this embodiment, the bending angle formed between the first shell segment 101 and the second shell segment 102 is small, which is conducive to reducing the overall occupied space of the shell 11.

[0479] In some embodiments, the angle formed by rotating the second direction clockwise relative to the first direction is greater than 90° and less than or equal to 315°; and / or, the angle formed by rotating the second direction counterclockwise relative to the first direction is greater than or equal to 45° and less than 270°.

[0480] Further, combined with Figures 40 to 44 As shown, under the premise that the first direction remains unchanged, that is, the first shell segment 101 remains unchanged and the working surface 1120 remains unchanged, the angle formed by the second direction and the first direction rotated clockwise is not less than 90°, and the angle formed by the counterclockwise rotation is not less than 45°, so that a certain bending space is reserved between the first shell segment 101 and the second shell segment 102 for people to hold and operate the skin care device 100.

[0481] In some embodiments, the housing 11 has a second side portion 11b and a fourth side portion 11d that are spaced apart and opposite to each other, and the angle formed by the second direction relative to the first direction on the second side portion 11b is greater than 90° and less than or equal to 315°; and / or, the housing 11 has a second side portion 11b and a fourth side portion 11d that are spaced apart and opposite to each other, and the angle formed by the second direction relative to the first direction on the fourth side portion 11d is greater than or equal to 45° and less than 270°.

[0482] Further, combined with Figure 35 As shown, by reserving a certain angle between the second direction and the second side portion 11b and / or the fourth side portion 11d, a certain bending space is retained between the two adjacent sides of the first shell segment 101 and the second shell segment 102 for people to hold and operate the skin care device 100.

[0483] In some embodiments, a portion of the second shell segment 102 and the constricted portion 103 together form a gripping portion 104 .

[0484] Furthermore, when the shell 11 is in a Z-shape or an S-shape, it is beautiful and special, and is easier to hold. The multiple bends can provide a variety of holding methods; the gripping portion 104 is formed by the contraction portion 103 and a part of the second shell segment 102. When the fingers hold the contraction portion 103, the second shell segment 102 can provide a placement position for the palm and a larger gripping area.

[0485] In some embodiments, the distance between any two points on the maximum cross-section of the first shell segment 101 perpendicular to the first direction is smaller than the dimension of the first shell segment 101 extending in the first direction; and / or, the distance between any two points on the maximum cross-section of the second shell segment 102 perpendicular to the second direction is smaller than the dimension of the second shell segment 102 extending in the second direction.

[0486] Further, combined with Figures 35 to 37As shown, the first shell section 101 and the second shell section 102 are slender structures, which conform to the design of human ergonomics and are more convenient for palms to hold and apply force.

[0487] In some embodiments, the cross-sectional dimension of the first shell segment 101 perpendicular to the first direction extends from the contraction portion 103 to the working head 112 in a trend of first gradually increasing and then gradually decreasing; and / or, the cross-sectional dimension of the second shell segment 102 perpendicular to the second direction extends from the contraction portion 103 in a direction away from the contraction portion 103 in a trend of first gradually increasing and then gradually decreasing.

[0488] Further, combined with Figure 35 、 Figure 37 As shown, the dimensions of the first shell segment 101 and the second shell segment 102 gradually decrease in the direction approaching the contraction portion 103, which can reduce the volume of the outer shell 11 and better connect with the contraction portion 103; the dimensions of the first shell segment 101 and the second shell segment 102 gradually increase and then decrease in the direction away from the contraction portion 103; when the dimensions of the shell segments gradually increase, the internal accommodation space of the outer shell 11 can be increased to provide setting space for the internal components of the skin care device 100; for example, the first shell segment 101 provides installation space for the light-emitting device 13, and its dimension gradually decreases when extending to near the working head 112 to facilitate connection with the working head 112; the dimension of the second shell segment 102 gradually increases and then gradually decreases in the direction away from the contraction portion 103, forming a convex shape and then shrinking. This setting better fits the shape of the palm of the human hand, making it more comfortable and stable to hold.

[0489] In some embodiments, the shell 11 has a first side portion 11a, a second side portion 11b, a third side portion 11c and a fourth side portion 11d arranged in sequence along the circumferential direction, the first side portion 11a and the third side portion 11c are arranged opposite to each other, and the second side portion 11b and the fourth side portion 11d are arranged opposite to each other; wherein, the second side portion 11b and the fourth side portion 11d are both arranged along the thickness direction of the shell 11, and the first side portion 11a and the third side portion 11c are both arranged along the direction perpendicular to the thickness direction of the shell 11.

[0490] Further, refer to Figure 45 , Figure 45 This is a side view schematic diagram of a skin care device 100; the length direction of the skin care device 100 is the X'X" direction, the thickness direction is the Y'Y" direction, and the width direction is the Z'Z" direction; the thickness direction of the skin care device 100 is the direction perpendicular to the horizontal plane when the user uses the skin care device 100 in a standard holding posture, and the width direction and length direction of the skin care device 100 are perpendicular to the thickness direction, and the width of the skin care device 100 is smaller than the length.

[0491] In some embodiments, combined Figure 34 、 Figure 35As shown, the second shell segment 102 is formed with a convex surface 1020 at a position close to the contraction portion 103; the skin care device 100 also includes a power switch control component 1001, which is arranged on the second shell segment 102, and the power switch control component 1001 is used to control the on and off of the skin care device 100, and the power switch control component 1001 and the convex surface 1020 are located on the same side of the outer shell 11; the convex surface 1020 is located between the power switch control component 1001 and the contraction portion 103 along the second direction.

[0492] Further, combined with Figure 34 As shown, the convex surface 1020 provides a gripping surface for at least part of the fingers of a human hand, making it convenient for the human hand to switch between various gripping methods between the second shell section 102 and the third shell section; since the convex surface 1020 is located between the power switch control component 1001 and the contraction portion 103, when the skin care device 100 is placed with the power switch control component 1001 facing the desktop, the convex surface 1020 will preferentially contact the desktop, which can prevent the power switch from hitting the desktop and causing accidental touches; in addition, when the user's finger rests on the convex surface 1020, it can be conveniently moved along the curvature of the convex surface 1020 to the power switch for operation.

[0493] In some embodiments, the skin care device 100 further includes a power switch control component 1001 and a switching control component 1002. The power switch control component 1001 is disposed in the second housing section 102 and is used to control the on and off of the skin care device 100.

[0494] The switching control component 1002 includes at least one of a gear control component 1003 for adjusting the working gear of the skin care device 100 and a mode control component 1004 for adjusting the working mode of the skin care device 100 . The switching control component 1002 is provided in the first shell section 101 .

[0495] Further, combined with Figure 34 As shown, the separate arrangement of the power switch control component 1001 and the switching control component 1002 facilitates customers to perform blind operations when selecting to turn the device on or off or switch the device status, thereby reducing the probability of accidental button touches. At the same time, the buttons of the power switch control component 1001 and the switching control component 1002 avoid the contraction portion 103 that forms the holding portion, and are distributed on the first shell segment 101 and the second shell segment 102 extending outward from the contraction portion 103, so that users can conveniently and quickly operate the buttons in the two extension directions when holding the skin care device 100. The gear control component 1003 and the mode control component 1004 are both circular in shape, with a diameter close to the width of a human finger, for easy operation.

[0496] In one embodiment, the power switch control component 1001 is used to control the skin care device 100 to be turned on and off, and is also used to control the working mode of the skin care device 100 to be turned on and off.

[0497] In one embodiment, combining Figure 34 As shown, the switching control component 1002 includes a gear control component 1003 for adjusting the working gear of the skin care device 100 and a mode control component 1004 for adjusting the working mode of the skin care device 100. The gear control component 1003 and the mode control component 1004 are distributed in sequence along the direction extending from the contraction part 103 to the working head 112 of the first shell section 101.

[0498] In some embodiments, the power switch control component 1001 and the switching control component 1002 are located on the same side of the housing 11; and / or, the switching control component 1002 is provided on the side of the housing 11, and the first shell segment 101 is recessed relative to the second shell segment 102.

[0499] Further, combined with Figure 34 As shown, the power switch control component 1001 and the switching control component 1002 are located on the same side of the shell 11, which is convenient for one-handed operation and conforms to the user's operating habits; the side of the first shell segment 101 with the switching control component 1002 is recessed relative to the second shell segment 102. When the skin care device 100 is placed with the switching control component 1002 facing the desktop, the second shell segment 102 will contact the desktop first, and the switching control component 1002 may touch the desktop and cause an accidental touch.

[0500] In some embodiments, the housing 11 has a first side portion 11a, a second side portion 11b, a third side portion 11c, and a fourth side portion 11d arranged in sequence along the circumferential direction. The first side portion 11a and the third side portion 11c are arranged opposite to each other with an interval, and the second side portion 11b and the fourth side portion 11d are arranged opposite to each other with an interval.

[0501] The second side portion 11b includes a first sub-side portion 111b formed in the first shell segment 101 and a second sub-side portion 112b formed in the second shell segment 102. The fourth side portion 11d includes a third sub-side portion 111d formed in the first shell segment 101 and a fourth sub-side portion 112d formed in the second shell segment 102.

[0502] The fourth sub-side portion 112d and the first sub-side portion 111b are parallel planes to each other; or, the fourth sub-side portion 112d and the first sub-side portion 111b are located in the same plane; or, the fourth sub-side portion 112d is rotated clockwise relative to the first sub-side portion 111b to form an angle greater than 160° and less than 200°.

[0503] Further, combined with Figure 35As shown, the first sub-side portion 111b of the first shell segment 101 and the second sub-side portion 112b of the second shell segment 102 are connected to form the second side portion 11b of the outer shell 11, and the third sub-side portion 111d of the first shell segment 101 and the fourth sub-side portion 112d of the second shell segment 102 are connected to form the fourth side portion 11d of the outer shell 11, so that the skin care device 100 has a smooth appearance and improves the comfort during operation; the fourth sub-side portion 112d is nearly parallel to the first sub-side portion 111b, so that the three-section shell forms a Z-shape, which is easier to hold.

[0504] In some embodiments, the skin care device 100 also includes a power switch control component 1001 and a switching control component 1002, and the power switch control component 1001 is arranged on the second sub-side 112b; the switching control component 1002 includes at least one of a gear control component 1003 and a mode control component 1004, and the switching control component 1002 is arranged on the first sub-side 111b.

[0505] Further, combined with Figure 34 and Figure 35 As shown, the second side portion 11b includes a first sub-side portion 111b formed on the first shell segment 101 and a second sub-side portion 112b formed on the second shell segment 102, wherein the switching control component 1002 is arranged on the first sub-side portion 111b, and the power switch control component 1001 is arranged on the second sub-side portion 112b, and both are arranged on the same side portion, so that the user can perform one-handed operation on the same side portion of the housing 11 of the skin care device 100.

[0506] In some embodiments, the second direction rotates clockwise relative to the working surface 1120 at an angle greater than 20° and less than 70°; and / or, a line connecting the center of the working surface 1120 and the center of the end of the second shell segment 102 away from the contraction portion 103 forms an angle with the working surface 1120 that is greater than 0° and less than or equal to 60°.

[0507] Further, combined with Figure 37 As shown, the second direction forms an acute angle relative to the working surface 1120 when rotated clockwise, indicating that the working surface 1120 has a certain inclination angle relative to the second shell segment 102; under such a setting, when the user holds the skin care device 100 to perform facial care, the hand position does not need to be raised too high to make the working surface 1120 contact the face well, which is more labor-saving to hold and reduces hand soreness and fatigue after long-term care work.

[0508] In some embodiments, a line connecting the center of the working surface 1120 and the center of the smallest cross-section of the contraction portion 103 forms an angle with the working surface 1120 that is greater than 0° and less than 45°.

[0509] Further, combined with Figure 37As shown, the line connecting the center of the working surface 1120 and the center of the minimum cross-section of the contraction portion 103 forms an angle with the working surface 1120 that is greater than 0° and less than 45°. The angle is close to the inclination angle of a human hand when it is naturally raised to hold an object. This allows the user to have a more comfortable and relaxed holding posture when using the skin care device 100 to care for the face, reducing hand fatigue that may occur after long-term holding.

[0510] In some embodiments, the housing 11 has a first side portion 11a, a second side portion 11b, a third side portion 11c, and a fourth side portion 11d arranged in sequence along the circumferential direction. The first side portion 11a and the third side portion 11c are arranged opposite to each other with an interval, and the second side portion 11b and the fourth side portion 11d are arranged opposite to each other with an interval.

[0511] The first side portion 11a includes a fifth sub-side portion 111a formed in the first shell segment 101 and a sixth sub-side portion 112a formed in the second shell segment 102. The third side portion 11c includes a seventh sub-side portion 111c formed in the first shell segment 101 and an eighth sub-side portion 112c formed in the second shell segment 102.

[0512] The skin care device 100 further includes a first cover 1005 and a second cover 1006. The fifth sub-side portion 111a is provided with a first opening 1110a. The first cover 1005 is connected to the housing 11 through the first opening 1110a. An annular first air outlet 114 is formed between the periphery of the first cover 1005 and the edge of the first opening 1110a.

[0513] The seventh sub-side portion 111c defines a second opening 1110c. The second cover 1006 passes through the second opening 1110c and connects to the housing 11. A first annular air inlet 113 is formed between the periphery of the second cover 1006 and the edge of the second opening 1110c.

[0514] Further, combined with Figures 34 to 36As shown, the fifth sub-side portion 111a and the seventh sub-side portion 111c on the first shell segment 101 are spaced apart and arranged opposite to each other, and the first air outlet 114 and the first air inlet 113 are formed on the fifth sub-side portion 111a and the seventh sub-side portion 111c respectively. External air enters the shell 11 through the first air inlet 113 to take away heat, and then escapes through the first air outlet 114 to form a heat dissipation cycle, which can quickly take away heat to avoid its accumulation; the first air outlet 114 and the first air inlet 113 avoid the holding portion. The first shell section 101 can also avoid the problem of the user's hands blocking the heat dissipation when holding the skin care device 100; the first surface cover 1005 and the second surface cover 1006 are connected to the outer shell 11 to form a first annular air outlet 114 and a first air inlet 113 respectively, which can prevent dust and foreign matter from directly entering the inner part of the outer shell 11 through the first opening 1110a and the second opening 1110c and affecting the operation of the device, thereby improving the safety of the use of the skin care device 100.

[0515] In some embodiments, the housing 11 has a first side portion 11a, a second side portion 11b, a third side portion 11c, and a fourth side portion 11d arranged in sequence along the circumferential direction. The first side portion 11a and the third side portion 11c are arranged opposite to each other with an interval, and the second side portion 11b and the fourth side portion 11d are arranged opposite to each other with an interval.

[0516] The first side portion 11a includes a fifth sub-side portion 111a formed in the first shell segment 101 and a sixth sub-side portion 112a formed in the second shell segment 102. The third side portion 11c includes a seventh sub-side portion 111c formed in the first shell segment 101 and an eighth sub-side portion 112c formed in the second shell segment 102.

[0517] The fourth side portion 11d includes a third sub-side portion 111d formed in the first shell section 101 and a fourth sub-side portion 112d formed in the second shell section 102, and the third sub-side portion 111d is formed with a third air inlet 1108; and / or, the skin care device 100 also includes a third face cover 1007 and a fourth face cover 1008, the sixth sub-side portion 112a is provided with a third face cover 1007, and the eighth sub-side portion 112c is provided with a fourth face cover 1008.

[0518] Further, combined with Figures 34 to 36 As shown, a third air inlet 1108 is formed on the first shell segment 101, which is used to form the first sub-side 111b, the third sub-side 111d, the fifth sub-side 111a and the seventh sub-side 111c of the first shell segment 101, all of which are provided with ventilation holes. This is because a working head 112 is provided on the first shell segment 101, and the heat dissipation demand is relatively large. Following the first air outlet 114 and the first air inlet 113, the third air inlet 1108 is added to enhance the heat dissipation effect and avoid the working head 112 from overheating.

[0519] Furthermore, the second shell section 102, which is used to constitute part of the holding portion, has a relatively smaller heat dissipation requirement and a higher anti-slip requirement; the third surface cover 1007 and the fourth surface cover 1008 are respectively arranged on the sixth sub-side portion 112a and the eighth sub-side portion 112c, which are spaced apart and opposite to each other on the second shell section 102. The third surface cover 1007 and the fourth surface cover 1008, which protrude outward relative to the surface of the outer shell 11, can play a certain anti-slip role for human hand holding, and are also used as decoration, forming a similar corresponding structure with the first surface cover 1005 and the second surface cover 1006 on the first shell section 101, thereby enhancing the aesthetic appearance of the skin care device 100; in some other embodiments, the third surface cover 1007 and / or the fourth surface cover 1008 are coated with a rough anti-slip coating, which can increase the friction between the third surface cover 1007 and / or the fourth surface cover 1008 and the palm, and effectively reduce the situation where the outer shell 11 falls out of the user's hand when holding the skin care device 100.

[0520] In some embodiments, the skin care device 100 further includes a main control board, which is disposed in the second shell section 102 ; and / or the skin care device 100 further includes a cooling fan, which is disposed in the first shell section 101 .

[0521] In one embodiment, the main control board of the skin care device 100 is arranged in the second shell section 102, and the power switch control component 1001 and the switching control component 1002 are both electrically connected to the main control board; the cooling fan is arranged in the first shell section 101 to provide heat dissipation function for the working head 112 and the light-emitting device 13 on the first shell section 101, and the separate arrangement of the main control board and the cooling fan can prevent the main control board from being affected by its working temperature.

[0522] In some other embodiments, the cooling fan may be replaced with a component such as a blower or an air pump for driving air flow.

[0523] In some embodiments, the skin care device 100 further includes a power circuit board 80 , and the main control circuit board 70 and the power circuit board 80 are spaced apart in the second shell section 102 ; the main control circuit board 70 is electrically connected to the light emitting device 13 for controlling the light emitting device 13 to emit light.

[0524] In some embodiments, the skin care device 100 also includes a radio frequency circuit board, which is distributed in the second shell section 102 along the same direction as the main control circuit board 70 and the power supply circuit board 80; the radio frequency circuit board is electrically connected to the first electrode 14 and is used to control the first electrode 14 to generate radio frequency current.

[0525] When using the phototherapy skin care device 100 to perform phototherapy care on the skin, the light-emitting device 13 of the phototherapy skin care device 100 will generate high heat, resulting in the user's skin being burned when the phototherapy skin care device 100 contacts the skin.

[0526] To reduce or even eliminate the burning or pain caused by the phototherapy skin care device 100, please refer to Figures 46 to 48 The skin care device 100 further includes a cooling element 30 , which is located in the housing 11 and is thermally connected to the first light-transmitting element 12 , so as to cool the first light-transmitting element 12 ;

[0527] In this embodiment, the cooling element 30 includes a cold surface. When powered, the cooling element 30 generates a low temperature on the cold surface. The cold surface contacts the first light-transmitting element 12, thereby continuously cooling the first light-transmitting element 12. The first light-transmitting element 12, in turn, directly contacts the human skin, cooling the skin surface and making it feel cool. This can alleviate or even eliminate the burning or pain caused by the skin's increased temperature. Therefore, the skin care device 100 in this embodiment of the present application has a cold compress function, which can reduce the probability of the skin care device 100 easily burning the user's skin during treatment.

[0528] In some embodiments, cooling element 30 is a semiconductor refrigeration chip. When powered, the semiconductor refrigeration chip absorbs heat from the cold end and releases heat from the hot end. For example, the semiconductor refrigeration chip is a thermocouple structure composed of an N-type semiconductor material and a P-type semiconductor material. Because the semiconductor refrigeration chip has no mechanical moving parts during the cooling process, it operates very quietly and is wear-free, thus providing high reliability. Furthermore, the semiconductor refrigeration chip is small and lightweight, making it suitable for integration into space-constrained devices, particularly handheld or portable devices.

[0529] It should be noted that the principle of the semiconductor cooling element 30 is prior art and will not be described in detail here. The shape of the cooling element 30 is not specifically limited here. Of course, in other embodiments, the cooling element 30 can also be a liquid-cooled radiator 50, where the liquid transfers heat during circulation, which is not limited in this embodiment of the present application.

[0530] In this embodiment, the first light-transmitting member 12 can be made of a transparent material to facilitate the transmission of light emitted by the light-emitting device 13. For example, it can be made of a transparent polymer material or a transparent inorganic material. Transparent polymer materials can be PC, transparent ABS, etc.; transparent inorganic materials can be glass, sapphire, ruby, diamond, etc.

[0531] In a preferred embodiment of the present application, the first light-transmitting element 12 is made of sapphire, which has excellent light transmission and thermal conductivity. The low temperature transmitted by the cooling element 30 quickly cools the skin surface, preventing the skin from being stimulated by excessive temperatures, thereby making the use of the skin care device 100 more comfortable. Furthermore, sapphire has high hardness and good wear resistance, effectively protecting the skin from damage during use.

[0532] Likewise, the second light-transmitting member 22 may also be made of sapphire.

[0533] like Figure 49 As shown, the existing refrigeration component 30 is usually distributed on the peripheral side portion 212 of the first light-transmitting component 12. Since a good refrigeration effect needs to be ensured, the refrigeration component 30 usually has a certain width. Therefore, when the refrigeration component 30 is arranged on the peripheral side portion 212 of the first light-transmitting component 12, the thickness of the first light-transmitting component 12 needs to be increased accordingly to fully fit the refrigeration component 30, resulting in a larger thickness and volume of the first light-transmitting component 12, a higher cost, and a smaller light-emitting surface of the first light-transmitting component 12 and a larger width of the shell where the first light-transmitting component 12 is located.

[0534] To solve the above problems, please refer to Figure 50 and Figure 51 In one embodiment of the present application, the first light-transmitting member 12 further includes a first light-incident surface 122 that is disposed opposite to the first light-emitting surface 121 and exposed to the housing 11, and at least one cooling element 30 is opposite to and thermally connected to at least a portion of the first light-incident surface 122. At least one cooling element 30 is opposite to and thermally connected to at least a portion of the first light-incident surface 122. That is, the cooling element 30 is disposed on the back of the first light-transmitting member 12. Compared to the related art in which the cooling element 30 is disposed on the peripheral side of the first light-transmitting member 12, the embodiment of the present application can achieve full adhesion between the cooling element 30 and the first light-transmitting member 12 without increasing the thickness of the first light-transmitting member 12, thereby making the thickness and volume of the first light-transmitting member 12 smaller, thereby reducing the production cost of the first light-transmitting member 12. In addition, the cooling element 30 is arranged on the back side of the first light-transmitting element 12, which utilizes the space in the length direction of the shell 11 and does not affect the area of ​​the first light-emitting surface 121 of the first light-transmitting element 12. When the surface width of the shell 11 where the first light-transmitting element 12 is located is limited, the first light-emitting surface 121 of the first light-transmitting element 12 can be made larger, so as to improve the care effect of the skin care device 100.

[0535] Please continue to refer to Figure 51 In some embodiments, the first light-transmitting member 12 includes a light-transmitting member body 123 and an annular flange 124. The light-transmitting member body 123 is at least partially embedded in the first opening 1121. The annular flange 124 is protruded from the outer periphery of the light-transmitting member body 123 and abuts against the edge of the first opening 1121, so that the first light-transmitting member 12 can be firmly installed at the first opening 1121, and the light-transmitting member body 123 can fit the human skin for skin care; wherein, at least one cooling member 30 is at least partially opposite to and thermally connected to a side surface of the annular flange 124 facing the light-emitting device 13, avoiding the area of ​​the first light-transmitting member 12 facing the light-emitting device 13, while not affecting the phototherapy function of the skin care device 100, it can also cool the first light-transmitting member 12 so that the skin care device 100 has a cold compress function.

[0536] Please refer to Figure 52 In some embodiments, the annular flange 124 is flush with the surface of the light-transmitting member body 123 facing the light-emitting device 13. In this embodiment, the annular flange 124 is flush with the surface of the light-transmitting member body 123 facing the light-emitting device 13. The annular flange 124 can abut against the edge of the first opening 1121, thereby firmly mounting the first light-transmitting member 12 at the first opening 1121, preventing the entire first light-transmitting member 12 from easily falling out of the first opening 1121, and improving the mounting stability of the first light-transmitting member 12.

[0537] It should be noted that the flushness here may also mean approximately flushness, for example, there is a distance of ±1 mm between the annular flange 124 and the surface of the light-transmitting member body 123 facing the light-emitting device 13 .

[0538] Please refer to Figure 53 In another embodiment, the annular flange 124 is flush with the surface of the light-transmitting member body 123 on the side facing away from the light-emitting device 13. In this embodiment, the annular flange 124 is flush with the surface of the light-transmitting member body 123 on the side facing away from the light-emitting device 13, which can maximize the area of ​​the first light-emitting surface 121, thereby increasing the area of ​​contact between the first light-transmitting member 12 and the user, improving the phototherapy effect and the cold compress effect, and further enhancing the care effect of the skin care device 100.

[0539] It should be noted that the flushness here may also mean approximately flushness, for example, there is a distance of ±1 mm between the annular flange 124 and the surface of the side of the light-transmitting member main body 123 facing away from the light-emitting device 13 .

[0540] In some embodiments, please refer to Figure 50 and Figure 51 The annular flange 124 is annularly disposed around the outer periphery of the light-transmitting member body 123. The light-transmitting member body 123 passes through the first opening 1121 of the housing 11, and the annular flange 124 abuts the edge of the first opening 1121, allowing the first light-transmitting member 12 to be securely engaged with the first opening 1121 and contact human skin for skin care. Of course, the shape of the annular flange 124 can be customized based on specific needs and is not limited in this embodiment of the present application.

[0541] In some embodiments, please refer to Figure 51The skin care device 100 further includes a cooling member 125, with opposite sides of the cooling member 125 respectively contacting the cooling member 30 and the annular flange 124. In this embodiment, one side of the cooling member 125 is in contact with the cold surface of the cooling member 30, and the other side is in contact with the annular flange 124. This allows the cooling member 125 to transfer the low temperature generated by the cooling member 30 to the first light-transmitting member 12, and reduces the gap between the cooling member 30 and the first light-transmitting member 12, thereby preventing the cooling member 30 from colliding with and damaging the first light-transmitting member 12.

[0542] In this embodiment, the cooling member 125 can be made of materials with excellent thermal conductivity, such as graphene, thermal silica gel, thermal silicone film, flexible thermal pad, etc., and can be selected and set according to specific applications. This embodiment of the application is not limited here.

[0543] In some embodiments, please refer to Figure 50 、 Figure 52 and Figure 53 The number of the refrigeration components 30 is at least two, and the at least two refrigeration components 30 are spaced apart and distributed along the circumference of the first opening 1121 and are respectively thermally connected to the annular flange 124 .

[0544] For example, there are two cooling elements 30 in the embodiment of the present application, which are respectively arranged on opposite sides of the first opening 1121. The two cooling elements 30 are used to cool the first light-transmitting element 12 at the same time, thereby enhancing the heat conduction efficiency and making the cooling effect more significant, thereby being able to quickly reduce the temperature of the entire first light-transmitting element 12, further enhancing the cold compress effect of the first light-transmitting element 12, reducing or even eliminating the pain felt by the user when caring for the skin, and improving the user experience.

[0545] Of course, in other embodiments, there may be three or more refrigeration components 30, and the positions of the multiple refrigeration components 30 may be specifically set according to actual conditions, which is not limited in the embodiment of the present application.

[0546] In order to ensure that the first light-transmitting element 12 and the cooling element 30 can be stably installed in the skin care device 100, please refer to Figure 54 and Figure 55 The skin care device 100 provided in the embodiment of the present application further includes a first mounting bracket 126 . The first mounting bracket 126 is disposed in the inner cavity 111 and is used to fix the first light-transmitting member 12 to the housing 11 .

[0547] Among them, the first mounting frame 126 is provided with a light-through hole 1261 and at least one avoidance hole 1262. The light-through hole 1261 is arranged opposite to the first opening 1121 to allow the light emitted by the light-emitting device 13 to pass through and illuminate the first light-transmitting member 12, so as to prevent the first mounting frame 126 from blocking the light of the light-emitting device 13; the avoidance hole 1262 is used for the refrigeration component 30 to pass through to connect to the first light-transmitting member 12 for thermal conductivity, thereby limiting the left and right movement of the refrigeration component 30. At the same time, the refrigeration component 30 is installed in the first mounting frame 126, minimizing the volume occupied between the two, so that the thickness can be smaller.

[0548] In some embodiments, the first light incident surface 122 includes a light-transmitting area and a non-light-transmitting area. The non-light-transmitting area is located outside the light-transmitting area. At least one cooling element 30 is opposite to and thermally connected to at least a portion of the non-light-transmitting area.

[0549] In this embodiment, the first light incident surface 122 is further divided into a light-transmitting area and a non-light-transmitting area, wherein the light-transmitting area is used to allow the light emitted by the light-emitting device 13 to pass smoothly, and the non-light-transmitting area is located outside the light-transmitting area and is used for functional connection with other components (specifically, providing an installation area for the refrigeration component 30).

[0550] When the user uses the skin care device 100, the light emitted by the light-emitting device 13 passes through the light-transmitting area through the light-through hole 1261 and irradiates the skin to perform phototherapy care on the skin. The cooling component 30 is arranged in the non-light-transmitting area, which can not only prevent the cooling component 30 from blocking the light and affecting the phototherapy effect, but also prevent the cooling component 30 from being exposed from the first light-emitting surface 121.

[0551] In some embodiments, the first light-transmitting member 12 further includes a light-shielding layer, which is disposed on at least a portion of the first light-entering surface 122 and is directly opposite to at least one refrigeration component 30. The area of ​​the light-shielding layer is greater than or equal to the positive projection area of ​​at least one refrigeration component 30 on the first light-entering surface 122. That is, the light-shielding layer can always block the refrigeration component 30.

[0552] Among them, the light-shielding layer forms a non-light-transmitting area, which not only prevents the refrigeration component 30 from being seen from the first light-emitting surface 121, but also blocks the image of the first mounting bracket 126 on the first light-emitting surface 121, thereby improving the user's visual experience; the first light-incident surface 122 forms at least a partial light-transmitting area on the side facing the light-emitting device 13 and opposite the first opening 1121, ensuring that the light emitted by the light-emitting device 13 can be irradiated to the skin through the first light-transmitting component 12.

[0553] In some embodiments, the light-shielding layer includes a silver coating. Silver is a lustrous and decorative metal. By coating the non-transparent area with silver, components within the inner cavity 111 can be shielded, preventing visibility of components such as the cooling element 30, resulting in an aesthetically pleasing appearance. Silver also has excellent thermal conductivity. When the cooling element 30 is cooling, the silver coating can transfer more heat to the first light-transmitting element 12, thereby enhancing the cooling effect of the first light-transmitting element 12.

[0554] In another embodiment, the light shielding layer may also include an ink layer. The ink layer may be formed into various patterns, which can shield the components in the inner cavity 111 while enhancing the appearance of the first light-transmitting member 12 .

[0555] Of course, in other embodiments, the light shielding layer may also include a silver-plated layer and an ink layer. The silver-plated layer is located between the first light incident surface 122 and the ink layer, further enhancing the appearance of the first light-transmitting component 12 .

[0556] Please continue to refer to Figure 47 and Figure 48 In some embodiments, the skin care device 100 further includes an annular reflector 103a, which is disposed between the first light-transmitting member 12 and the light-emitting device 13. The annular reflector 103a encloses a hollow inner hole, which is used for allowing light emitted by the light-emitting device 13 to pass through and illuminate the first light-transmitting member 12.

[0557] In this embodiment, the inner reflective surface of the annular reflector 103a can be processed into a mirror surface as needed to achieve a higher reflectivity. Alternatively, the inner reflective surface can be coated with a reflective material, such as aluminum plating, silver coating, or other high-reflectivity coating, to further enhance the light reflection effect. Through these measures, the annular reflector 103a can maximize the retention of light emitted by the light-emitting device 13, ensuring full utilization of the light energy.

[0558] As for the material selection of the annular reflector 103a, metal materials such as aluminum or stainless steel can be used. These materials not only have good reflective properties, but also have durability and heat dissipation properties. Alternatively, the annular reflector 103a can also be made of a plastic material with high reflectivity, which can reduce the weight of the entire device while ensuring the reflective effect.

[0559] This embodiment effectively reduces light loss by introducing an annular reflector 103a, ensuring that light emitted by the halogen lamp 131 can pass through the first light-transmitting member 12 to the greatest extent possible, achieving a better phototherapy effect. This design not only improves the device's light efficacy but also enhances the user experience, making the light therapy and cold compress effects more effective.

[0560] Please continue to refer to Figure 51In some embodiments, the skin care device 100 further includes a light-transmitting seal 127, which is disposed on a side of the annular reflector 103a away from the light-emitting device 13, and a second sealed cavity 1271 is formed between the light-transmitting seal 127 and at least a portion of the first light incident surface 122.

[0561] In this embodiment, the first light-transmitting element 12 is made of sapphire. It has two main surfaces: a hot surface facing the light-emitting device 13, and a cold surface contacting the user's skin. The hot surface of the sapphire faces the light-emitting device 13. During device operation, this surface receives the high-intensity light emitted by the light source. Due to continuous contact with the light source, the hot surface absorbs a certain amount of heat, resulting in a higher temperature.

[0562] The fundamental cause of fogging is high humidity. When the hot surface comes into contact with the outside air, the temperature difference can cause moisture in the air to condense on the hot surface, forming fog, which affects the light transmittance of the first light-transmitting member 12 and the overall performance of the device. To prevent fogging of the sapphire hot surface due to temperature differences, a light-transmitting seal 127 is used in this embodiment to prevent fogging.

[0563] Specifically, the light-transmitting seal 127 isolates the hot surface of the sapphire from the outside air, preventing moisture in the air from directly contacting the hot surface. When the light-emitting device 13 emits light, the light-transmitting seal 127 ensures that the hot surface of the sapphire remains dry, preventing condensation caused by temperature differences from contacting the hot surface. This effectively prevents fogging and maintains stable light output and efficient transmission.

[0564] Furthermore, the light-transmitting seal 127 forms a second sealed cavity 1271 with the first light-transmitting member 12 via a sealing ring 1272. The inner ring of the sealing ring 1272 is circumferentially provided with an annular groove for assembling the light-transmitting seal 127, which facilitates installation and removal and has a good sealing effect.

[0565] In this embodiment, the light-transmitting seal 127 can be made of white glass, which has excellent high-temperature resistance and light-transmitting properties, ensuring the transmission of light from the light-emitting device 13 and preventing fogging of the first light-transmitting member 12. Of course, the light-transmitting seal 127 can also be made of other materials with similar properties, such as quartz glass or high-temperature resistant ceramics, which also have excellent light transmittance and heat resistance.

[0566] To further prevent fogging, the second sealed cavity 1271 can be vacuumed. This effectively reduces the air content within the cavity, thereby lowering humidity and further preventing fogging on the sapphire's hot surface caused by temperature differences. This treatment protects the sapphire's optical properties.

[0567] In some embodiments, please refer to Figures 56 to 61 The host 10 also includes a fan 40, a radiator 50 and a heat pipe 60. The shell 11 is formed with a first air inlet 113 and a first air outlet 114. The fan 40, the radiator 50 and the heat pipe 60 are all arranged in the shell 11. The fan 40 is used to drive the air entering the shell 11 from the first air inlet 113 to flow through the radiator 50 and the light-emitting device 13 and then be discharged from the first air outlet 114; one end of the heat pipe 60 is connected to the radiator 50, and the other end is connected to the refrigeration component 30.

[0568] In this embodiment, the components of the skin care device 100 that need to dissipate heat are arranged on the air movement path. In this way, when the skin care device 100 is started, the fan 40 drives air into the inner cavity 111 of the shell 11 from the first air inlet 113. The air flows through the radiator 50 and the light-emitting device 13 and is discharged from the air outlet, so that the air takes away the heat generated by these components, ensuring that the skin care device 100 maintains a suitable temperature during use.

[0569] In this embodiment, the cooling element 30 is connected to the radiator 50 via the heat pipe 60, so that the heat absorbed by the cooling element 30 from the first light-transmitting element 12 can be quickly transferred to the radiator 50 via the heat pipe 60, and the heat of the radiator 50 can be discharged from the inner cavity 111 through air flow, thereby enabling the cooling element 30 to continuously and effectively cool the first light-transmitting element 12. The cooling element 30 can be directly disposed on the first light-transmitting element 12 to absorb heat from the first light-transmitting element 12, or it can be indirectly absorbed from the first light-transmitting element 12 via other heat-conducting structures, and this disclosure is not limited to this.

[0570] Please refer to Figures 56 to 59 The skin care device 100 includes a shell 11, which forms an inner cavity 111, a first air inlet 113 and a first air outlet 114, and the first air inlet 113 and the first air outlet 114 are respectively connected to the inner cavity 111; the light-emitting device 13 is at least partially accommodated in the inner cavity 111 for skin care; the radiator 50 is arranged in the inner cavity 111, for driving air from the first air inlet 113 into the inner cavity 114, and discharged out of the inner cavity 111 through the first air outlet 114.

[0571] The housing 11 includes a first end 1101, a second end 1102, and a connecting side portion 1103 connected between the first and second ends 1101, 1102. The first end 1101 is formed with a working head 112. The first light-transmitting member 12 is located at the first end 1101. Light emitted by the light-emitting device 13 passes through the first light-transmitting member 12 and is emitted, thereby beautifying the skin. The second end 1102 is the rear end of the skin care device 100, and the connecting side portion 1103 encloses a cavity that can accommodate various components.

[0572] The connecting side portion 1103 includes a first connecting side portion 1104, a second connecting side portion 1105, and a third connecting side portion 1106. The first connecting side portion 1104 and the second connecting side portion 1105 are spaced apart and arranged opposite each other. The third connecting side portion 1106 is disposed between the first connecting side portion 1104 and the second connecting side portion 1105. One of the first air inlet 113 and the first air outlet 114 is formed in the first connecting side portion 1104, and the other is formed in the second connecting side portion 1105. The fan 40 is located between the first connecting side portion 1104 and the second connecting side portion 1105 and has a second air inlet 41, which is disposed toward the third connecting side portion 1106.

[0573] Because the housing 11 defines an inner cavity 111, the third connecting side portion 1106 is connected to the ends of the first connecting side portion 1104 and the second connecting side portion 1105, thereby increasing the volume of the inner cavity 111. A first air inlet 113 and a first air outlet 114 are provided on the first connecting side portion 1104 and the second connecting side portion 1105, respectively. This allows air to enter through the first air inlet 113, flow through the heat sink 50 and the light-emitting device 13, ensuring that all areas within the skin care device 100 are covered by air, and then be exhausted through the second air inlet 41, ensuring smoother air flow and improving heat dissipation efficiency.

[0574] It is understandable that the first air inlet 113 may also be provided on the second connecting side portion 1105 , and the first air outlet 114 may also be provided on the first connecting side portion 1104 , and the present disclosure does not impose any limitation on this.

[0575] The skin care device 100 of the present disclosure is configured such that the first air inlet 113 and the first air outlet 114 are respectively disposed on the first connecting side portion 1104 and the second connecting side portion 1105 of the skin care device 100, which are spaced apart from each other, and the fan 40 is disposed between the first connecting side portion 1104 and the second connecting side portion 1105. This ensures that the distance between the fan 40 and the first air inlet 113 and the first air outlet 114 is not too far, which facilitates the arrangement of the air duct in a limited space and reduces the volume occupied by the air duct. In addition, the second air inlet 41 of the fan 40 is disposed toward the third connecting side portion 1106, so that the second air inlet 41 is not directly disposed toward the first air inlet 113 and the first air outlet 114. This makes the arrangement of the fan 40 more flexible and allows air to flow through more areas of the inner cavity 111 within a limited space, thereby facilitating the cooling of more components by one fan 40, thereby facilitating a good balance between the volume and overall heat dissipation effect of the skin care device 100.

[0576] like Figure 56 、 Figure 57 and Figure 64As shown, in some embodiments, the axial direction of the fan 40 is perpendicular to the direction from the first connecting side portion 1104 to the second connecting side portion 1105 .

[0577] The fan 40, positioned perpendicularly from the first connecting side 1104 toward the second connecting side 1105, can draw air from a position closer to the third connecting side 1106. This reduces the distance between the second air inlet 41 of the fan 40 and the third connecting side 1106, thereby lengthening the distance between the first air inlet 113 and the second air inlet 41 and extending the air flow path. This allows air to enter from the first air inlet 113 and flow between the third connecting side 1106 and the second air inlet 41 of the fan 40, passing through a wider area. This helps ensure a more uniform cooling effect for the various components within the inner cavity 111, prevents local overheating, and improves the stability and service life of the skin care device 100. Furthermore, the air flow path is closely aligned with the first connecting side 1104 and the third connecting side 1106, resulting in less flow resistance and, in turn, higher heat dissipation efficiency.

[0578] By setting the fan 40 axially perpendicular to the width direction of the device, the fan 40 can be placed more neatly, which is convenient for the arrangement of other components, so that the internal space of the skin care device 100 can be better utilized, the thickness of the skin care device 100 can be reduced, and the skin care device 100 can be made more compact and portable, thereby improving the user experience.

[0579] like Figure 56 and Figure 64 As shown, in some embodiments, the first air inlet 113 is formed on the first connecting side 1104, and the orthographic projection of the fan 40 on the first connecting side 1104 overlaps with at least a portion of the first air inlet 113; and / or, the first air outlet 114 is formed on the second connecting side 1105, and the orthographic projection of the fan 40 on the second connecting side 1105 overlaps with at least a portion of the first air outlet 114.

[0580] In the inner cavity 111 of the shell 11, the flow of air is formed by the push of the fan 40. The air flow path is usually from the first air inlet 113, after passing through the internal components, it is discharged from the first air outlet 114. Therefore, the smoothness of the air flow directly affects the heat dissipation effect of the skin care device 100.

[0581] In this embodiment, the orthographic projection of at least part of the fan 40 is arranged to overlap with the first air inlet 113 or the first air outlet 114, so that there is no excessive misalignment between the fan 40 and the first air inlet 113 or the first air outlet 114, and the direction in which the fan 40 inhales or exhausts air is consistent or nearly consistent with the direction of the first air inlet 113 or the first air outlet 114, ensuring that the air flows through more areas while avoiding the situation where the distance between the first air inlet 113 and the second air inlet 41 of the fan 40 is too far, thereby reducing the occurrence of airflow dispersion, avoiding detours and collisions in the air flow, and avoiding the formation of vortices or countercurrents between the fan 40 and the first air inlet 113 or the first air outlet 114, so that the fan 40 can work more efficiently.

[0582] Preferably, in this embodiment, the axis of the fan 40 can be projected onto the first connecting side portion 1104 in the middle of the first air inlet 113, so that the distance between the second air inlet 41 of the fan 40 and the first air inlet 113 is relatively close. After the air enters the first air inlet 113, it moves vertically downward or vertically upward along the first connecting side portion 1104 to reach the second air inlet 41, making it easier for the fan 40 to draw air, and the components arranged between the first connecting side portion 1104 and the fan 40 can also obtain better heat dissipation effects.

[0583] In some embodiments, please refer to Figure 64 and Figure 74 The skin care device 100 also includes an air guide 42, which is arranged in the inner cavity 111 and forms a heat dissipation duct in the outer shell 11; the fan 40 has a second air outlet 401, and the heat dissipation duct extends from the second air outlet 401 to the first air outlet 114; the light-emitting device 13 is at least partially located in the heat dissipation duct.

[0584] Among them, the air guide 42 can be designed as a closed pipe structure, and one end of the pipe structure is connected to the second air outlet 401 of the fan 40, and the other end is connected to the first air outlet 114, so that the air blown out by the fan 40 can be guided to flow continuously to the inner cavity 111. The shape of the pipe structure can be set according to actual needs, and can be cylindrical, box-shaped or other irregular shapes; the air guide 42 can also be an open plate-like structure, guiding the airflow through specific angles and bending designs, and this embodiment does not limit this.

[0585] The setting of the air guide 42 allows the air to move along a clear and controlled flow path (i.e., the heat dissipation duct) in the inner cavity 111, and at least a portion of the light-emitting device 13 is set in the heat dissipation duct, so that air continuously flows through the light-emitting device 13, taking away the heat of the light-emitting device 13 and discharging it out of the device through the first air outlet 114, ensuring that the light-emitting device 13 can continuously maintain a low temperature during operation, thereby avoiding excessive temperature affecting the performance of the skin care device 100.

[0586] In this embodiment, the air flow in the inner cavity 111 is regulated by the air guide 42, so that the internal space can be used more reasonably, the turbulence and eddy current of the air in the inner cavity 111 are reduced, the wind force of the fan 40 can be used more efficiently, and the workload of the fan 40 can be reduced, thereby extending the service life of the fan 40; and by controlling the path of air flow, local overheating problems caused by air stagnation or poor flow are avoided, and the cooling effect inside the skin care device 100 is significantly improved.

[0587] like Figure 56 As shown, in some embodiments, the connecting side 1103 also includes a fourth connecting side 1107 arranged corresponding to the third connecting side 1106, the third connecting side 1106 and the fourth connecting side 1107 are arranged along the thickness direction of the skin care device 100, and the first connecting side 1104 and the second connecting side 1105 are arranged along the width direction perpendicular to the skin care device 100.

[0588] The thickness direction of the skin care device 100 is the direction perpendicular to the horizontal plane when the user uses the skin care device 100 in a standard holding posture, and the width direction and length direction of the skin care device 100 are perpendicular to the thickness direction, and the width of the skin care device 100 is smaller than the length. Figure 63 The thickness direction of the skin care device 100 is the ZZ' direction, the length direction is the XX' direction, and the width direction is the YY' direction. The first connecting side portion 1104 and the second connecting side portion 1105 are arranged along the width direction of the skin care device 100, so that the first air inlet 113 and the first air outlet 114 are also located in the width direction of the skin care device 100. Therefore, when the user uses the skin care device 100, the flowing air will not be blown directly towards the user, reducing the possibility of being affected by the user and improving the user experience.

[0589] It is understandable that the skin care device 100 may have multiple holding postures. In this case, one of the holding postures is selected as the standard holding posture, and the thickness direction of the skin care device 100 is determined accordingly.

[0590] like Figure 56 As shown, in some embodiments, a third air inlet 1108 communicating with the inner cavity 111 is formed at one end of the fourth connecting side portion 1107 close to the first end portion 1101 .

[0591] The introduction of third air inlet 1108 increases the path for air to enter inner cavity 111, allowing fan 40 to draw air from more directions, thereby improving overall heat dissipation efficiency. Furthermore, positioning third air inlet 1108 at the end of fourth connecting side portion 1107 near first end portion 1101 allows air to flow from third air inlet 1108 to second air inlet 41 of fan 40 over a longer path, passing through a wider area. This results in more uniform heat dissipation for all components within inner cavity 111, preventing localized overheating.

[0592] In some embodiments, the skin care device 100 includes a housing 11, the housing 11 including a first end 1101, a second end 1102, and a connecting side portion 1103 connected between the first end 1101 and the second end 1102. The first end 1101 and the connecting side portion 1103 enclose an inner cavity 111. The light-emitting device 13 is at least partially accommodated in the inner cavity 111, and the light-emitting device 13 is used to care for the skin through the first end 1101.

[0593] The heat sink 50 is arranged in the inner cavity 111 for absorbing at least part of the heat of the light-emitting device 13; the fan 40 is arranged in the inner cavity 111, and the fan 40 is stacked on one side of the heat sink 50 in a direction perpendicular to the extension direction of the first end 1101 toward the second end 1102.

[0594] The fan 40 and the radiator 50 are stacked in the thickness direction of the skin care device 100, and there are various specific stacking methods. For example, if the air inlet of the fan 40 is arranged toward the radiator 50, the fan 40 and the radiator 50 can be staggered. In this case, the air inlet of the fan 40 is partially arranged above the radiator 50, and partially arranged above other components that are prone to heat (such as the power module, ultrasonic module), so as to improve the cooling effect of the fan 40 on these components, thereby ensuring the stability of the skin care device 100 during use. The fan 40 and the radiator 50 can also be coaxially arranged, that is, the fan 40 and the radiator 50 completely overlap or substantially overlap, so as to maximize the effect of the radiator 50.

[0595] In this embodiment, the heat sink 50 and fan 40 are stacked together along a direction extending perpendicularly from the first end 1101 toward the second end 1102, so that the heat sink 300 occupies space in the thickness direction of the skin care device 100, reducing the overall length of the skin care device 100 and making it more compact and portable. Furthermore, the stacked arrangement allows the airflow generated by the fan 40 to pass directly through the heat sink 50, maximizing heat dissipation efficiency and ensuring rapid cooling of the device during operation, thereby improving device performance and user experience. Furthermore, an overly long beauty device results in internal components being spaced far apart, hindering electrical connections between the components. The skin care device 100 of the present disclosure has a compact overall structure, and the wires required to connect the components are shorter, making wire placement more convenient and further reducing the size of the skin care device 100.

[0596] like Figure 63 As shown, in some embodiments, the fan 40 is stacked on one side of the heat sink 50 along the thickness direction of the skin care device 100 .

[0597] Among them, the thickness direction of the skin care device 100 is the direction perpendicular to the horizontal plane when the user uses the skin care device 100 in a standard holding posture, and the width direction and length direction of the skin care device 100 are perpendicular to the thickness direction, and the width of the skin care device 100 is smaller than the length.

[0598] For example, refer to Figure 63 The thickness direction of the skin care device 100 is the ZZ' direction, the length direction is the XX' direction, and the width direction is the YY' direction. Stacking the fan 40 and radiator 50 along the thickness direction of the skin care device 100 allows the fan 40 and radiator 50 to be placed horizontally within the inner cavity 111 during use. This makes them less susceptible to the shaking of the skin care device 100 and improves the stability of the fan 40 and radiator 50. Furthermore, stacking the fan 40 on one side of the radiator 50 along the thickness direction of the skin care device 100 utilizes the space within the thickness of the skin care device 100, allowing internal components to be arranged in both the thickness and length directions. This allows for more efficient use of the space within the skin care device 100 and a more compact device configuration.

[0599] like Figure 72 and Figure 73 As shown, in some embodiments, the skin care device 100 further includes a heat dissipation circuit board 26 , and the radiator 50 is formed with a receiving groove 51 , and at least a portion of the heat dissipation circuit board 26 is received in the receiving groove 51 .

[0600] The present disclosure provides a receiving groove 51 on the heat sink 50 within the skin care device 100, and utilizes the receiving groove 51 to accommodate the heat dissipation circuit board 26, which can effectively reduce the space occupied by the heat dissipation circuit board 26 within the skin care device 100. The shape and location of the receiving groove 51 can be designed according to actual needs. For example, the receiving groove 51 can be a prism, a cylinder, or other irregular shape, and the receiving groove 51 can be located on the top surface or side surface of the heat sink 50, with the specific location depending on the layout requirements of the heat dissipation circuit board 26 within the device. It is understood that the receiving groove 51 can be composed of multiple grooves, for example, a "7"-shaped receiving groove 51 can be provided on both the top surface and the side surface of the heat sink 50 to accommodate heat dissipation circuit boards 26 of different shapes; or multiple receiving grooves 51 located at different positions can be provided to accommodate heat dissipation circuit boards 26 located at different positions.

[0601] During installation, first align the heat dissipation circuit board 26 with the position of the receiving groove 51 to ensure that the heat dissipation circuit board 26 is in close contact with the heat sink 50. Then, the heat dissipation circuit board 26 is smoothly placed into the receiving groove 51. The heat dissipation circuit board 26 is securely attached to the heat sink 50 using screws, snaps, welding, or adhesive. After installation, the heat dissipation circuit board 26 and the heat sink 50 maintain good thermal contact, allowing the heat sink 50 to effectively absorb the heat generated by the heat dissipation circuit board 26 during operation. At the same time, some air driven by the fan 40 will also flow through the heat dissipation circuit board 26, further reducing the temperature of the heat dissipation circuit board 26.

[0602] In this embodiment, at least a portion of the heat dissipation circuit board 26 is arranged in the receiving groove 51 of the radiator 50. On the one hand, this embedded installation method reduces the occupation of the internal space of the skin care device 100 by the heat dissipation circuit board 26, making the structure of the skin care device 100 more compact; on the other hand, the setting of the receiving groove 51 makes the heat dissipation circuit board 26 in close contact with the radiator 50, and the heat on the heat dissipation circuit board 26 can be quickly transferred to the radiator 50, maximizing the heat dissipation effect of the radiator 50, and helping to extend the service life of the heat dissipation circuit board 26, thereby improving the stability and reliability of the skin care device 100 during long-term use.

[0603] like Figure 72 and Figure 73 As shown, in some embodiments, the skin care device 100 also includes a control device 115, which is at least partially exposed outside the housing 11 for user control; the accommodating groove 51 has a notch 511 facing the control device 115, and the heat dissipation circuit board 26 is electrically connected to the control device 115 through the notch 511.

[0604] The control device 115 may have multiple functions, such as turning the power of the device on and off, adjusting the nursing mode, setting the luminous intensity, adjusting the size of the electrode output current, etc.; and the control device 115 can use different methods to control the above functions, such as buttons, knobs, touch screens or sliders, and can be designed according to ...

Claims

1. A skin care device, characterized in that include: A host, comprising a housing, a first light-transmitting member, a light-emitting device, a first electrode, and a main control circuit board; the housing having an inner cavity and a working head, the working head having a first opening communicating with the inner cavity; and the first light-transmitting member being mounted in the first opening; The light emitting device is disposed in the inner cavity and irradiates light toward the first light-transmitting member to provide skin care through the first light-transmitting member; the first electrode is at least partially exposed to the working head and is used to output microcurrent and / or radiofrequency current to the skin; the main control circuit board is electrically connected to the first electrode and is used to control the first electrode to generate microcurrent and / or radiofrequency current; an auxiliary head, the auxiliary head being detachably connected to the working head of the main unit, the auxiliary head comprising a cover, a second light-transmitting member, and a second electrode; the cover being provided with a second opening; the second light-transmitting member being mounted in the second opening, the second light-transmitting member being configured to face the first light-transmitting member when the auxiliary head is connected to the main unit, so that light emitted by the light-emitting device sequentially passes through the first light-transmitting member and the second light-transmitting member before irradiating the skin; The second electrode is at least partially exposed from the cover, and the second electrode is used to be electrically connected to the first electrode after the accessory head is mounted on the main unit to output microcurrent and / or radiofrequency current to the skin; In which, the first light-transmitting member has a first light-emitting surface facing away from the light-emitting device, the first electrode has a first surface exposed at the working head for contacting the skin, the second light-transmitting member has a second light-emitting surface facing away from the light-emitting device, the second electrode has a second surface exposed at the cover body for contacting the skin, and the sum of the areas of the first light-emitting surface and the first surface is greater than the sum of the areas of the second light-emitting surface and the second surface.

2. The skin care device according to claim 1, characterized in that The area of ​​the first light-emitting surface is larger than the area of ​​the second light-emitting surface; and / or, An area of ​​the first surface is greater than an area of ​​the second surface.

3. The skin care device according to claim 1, characterized in that The outer edge of the first light-emitting surface is a polygon with more than four sides; and / or, The outer edge of the second light-emitting surface is a polygon with more than four sides.

4. The skin care device according to claim 1, wherein The first light emitting surface and the second light emitting surface have the same shape; and / or, The outer edge of the first light-emitting surface and the outer edge of the second light-emitting surface are both regular octagons, regular hexagons, regular heptagons, regular nonagons, or regular decagons.

5. The skin care device according to claim 1, characterized in that The outer edge of the first light emitting surface is a regular polygon, the number of the first electrodes is equal to the number of sides of the first light emitting surface, and each of the first electrodes is correspondingly arranged at intervals on the periphery of one side of the first light emitting surface.

6. The skin care device according to claim 1, characterized in that The outer edge of the second light-emitting surface is a regular polygon, the number of the second electrodes is half the number of sides of the second light-emitting surface, and each of the second electrodes is arranged at intervals on the periphery of at least two sides of the second light-emitting surface. Each of the second electrodes is used to electrically connect with two adjacent first electrodes after the auxiliary head is installed on the host.

7. The skin care device according to claim 6, characterized in that Each second electrode is electrically connected to at least two conductive connectors, and one end of the at least two conductive connectors away from the second electrode is used to be attached to and electrically connected to the surfaces of two adjacent first electrodes in a one-to-one correspondence after the auxiliary head is installed on the host.

8. The skin care device according to claim 1, wherein The light emitting device is used to emit light with a wavelength between 630nm and 1940nm; and / or, The light emitting device is used for emitting light with a peak wavelength between 1400nm±100nm.

9. The skin care device according to any one of claims 1 to 8, characterized in that The light-emitting device includes at least one halogen lamp, which includes a lamp tube and a filament arranged in the lamp tube. The filament includes a first spiral segment, a second spiral segment and a non-spiral segment. The first spiral segment and the second spiral segment are respectively connected to two ends of the lamp tube, and the non-spiral segment is connected between the first spiral segment and the second spiral segment.

10. The skin care device according to any one of claims 1 to 8, characterized in that The host further includes a refrigeration element, which is located in the housing and is thermally connected to the first light-transmitting element, so as to cool the first light-transmitting element; and / or, The first light-transmitting member is sapphire; and / or, The second light-transmitting member is sapphire.

11. The skin care device according to claim 10, characterized in that The host further includes a fan, a radiator, and a heat pipe. The housing is formed with a first air inlet and a first air outlet. The fan, radiator, and heat pipe are all arranged in the housing. The fan is used to drive air entering the housing from the first air inlet to flow through the radiator and the light-emitting device and then be discharged from the first air outlet. One end of the heat dissipation pipe is connected to the radiator, and the other end is connected to the refrigeration component.

12. The skin care device according to claim 1, wherein The shell is in a Z-shape or an S-shape.

13. The skin care device according to any one of claims 1 to 8 or 12, characterized in that The outer shell includes a first shell segment and a second shell segment, and a contraction portion with a cross-section that is inwardly contracted relative to the first shell segment and the second shell segment is formed between the first shell segment and the second shell segment. The first shell segment extends from the contraction portion along a first direction, and the second shell segment extends from the contraction portion along a second direction different from the first direction. The contraction portion is at least partially used for a person to hold the skin care device by hand for care work. The working head is provided at one end of the first shell segment away from the contraction portion. The working head is formed with a working surface for contacting the skin. The line connecting the center of the working surface and the center of the minimum cross-section of the contraction portion forms an angle greater than 0° and less than or equal to 90° with the working surface. The light-emitting device is provided in the first shell segment.

14. The skin care device according to claim 13, characterized in that The host further includes a power supply circuit board, and the main control circuit board and the power supply circuit board are spaced apart and arranged in the second shell section; The main control circuit board is also electrically connected to the light emitting device and is used to control the light emitting device to emit light.

15. The skin care device according to claim 14, characterized in that The host further includes a radio frequency circuit board, which is spaced apart and distributed in the second shell section along the same direction as the main control circuit board and the power supply circuit board; The radio frequency circuit board is electrically connected to the first electrode and is used to control the first electrode to generate radio frequency current.

16. The skin care device according to any one of claims 1 to 8 or 12, characterized in that The auxiliary head is detachably connected to the main unit via a buckle and / or a magnet.

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