Skin care device

Abstract

This utility model discloses a skin care device, including a main unit, an auxiliary head, and at least one filter. The main unit has a light source assembly and a light outlet for emitting light from the light source assembly. The auxiliary head has a light path channel corresponding to the light outlet. A filter is detachably mounted at at least one of the light outlet and the light path channel. The auxiliary head is detachably connected to the main unit to cover the filter. The auxiliary head and main unit of this application are detachably connected, allowing for a tight seal of the filter in the installed state, forming a physical protective barrier. Compared to traditional exposed filter structures, the sealing of the main unit or auxiliary head effectively prevents the filter from shifting due to external impacts. It also effectively blocks dust from entering, preventing dust from affecting light transmittance and filter performance, ensuring stable spectral filtration accuracy, and improving the cosmetic effect. Furthermore, the detachable structure of the auxiliary head and main unit facilitates filter replacement and equipment maintenance, improving the effectiveness of the skin care device.

Description

Technical Field

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

[0002] Skin care devices, as important instruments for improving skin condition, stimulate the skin using technologies such as micro-frequency current, radio frequency, ultrasound, and intense light. This not only promotes skin metabolism and muscle contraction but also facilitates the penetration of effective ingredients in skincare products, achieving beauty effects such as whitening, skin rejuvenation, and blemish removal. Among these, skin care devices utilizing intense light technology rely on filters to select specific spectral bands. These filters remove harmful ultraviolet rays and select specific spectral frequencies, such as the 515nm band for whitening and skin rejuvenation, and the 695nm band for hair removal, effectively addressing various skin problems such as blemishes and acne.

[0003] However, some current skin care devices have the filter plug-in structure located on the outside of the housing, leaving the filter directly exposed. This makes the filter easily displaced due to external impacts during daily use or storage, affecting the filtration accuracy of the light band and weakening the beauty effect. At the same time, the exposed plug-in port becomes a dust inlet, allowing indoor suspended particles or outdoor dust to enter the device. This not only obstructs light transmission and reduces light intensity but also affects the optical performance of the filter, seriously impacting the device's performance and lifespan. Utility Model Content

[0004] The main purpose of this invention is to propose a skin care device that addresses the technical problems of existing skin care devices, such as the easy displacement of filter components due to external impacts and dust intrusion into the device, which in turn affects the filtration accuracy of the light band, the optical performance of the device, and its service life.

[0005] To achieve the above objectives, this utility model proposes a skin care device, including a main unit, an auxiliary head, and at least one filter element;

[0006] The main unit is provided with a light source assembly and a light outlet for the light source assembly to emit light. The auxiliary head is provided with an optical path channel corresponding to the light outlet. The filter is detachably provided at at least one of the light outlet and the optical path channel. The auxiliary head is detachably connected to the main unit to cover the filter.

[0007] In some embodiments, a mounting bracket for mounting the filter element is provided at the light outlet and / or the optical path channel;

[0008] The mounting bracket has a mounting cavity adapted to the filter and a mounting opening located on one side of the mounting cavity, and the filter can be detachably inserted into the mounting cavity through the mounting opening.

[0009] In some embodiments, the filter element includes a frame and a filter disposed on the frame. The frame is provided with an outwardly protruding limiting flange along its circumference, and the limiting flange forms a snap-fit ​​engagement with the cavity wall of the mounting cavity.

[0010] In some embodiments, the mounting bracket has a handle on at least one side of the mounting opening for a user to engage with their fingers to remove the filter.

[0011] In some embodiments, the skin care device further includes a positioning detection device disposed on at least one side of the mounting cavity, for detecting whether the filter element is correctly installed in a preset position.

[0012] In some embodiments, the skin care device includes at least two filters, and the mounting bracket has at least two mounting cavities arranged along the light direction of the light source assembly, with each mounting cavity corresponding to one of the filters.

[0013] In some embodiments, the mounting bracket is mounted on the host, the auxiliary head has a cavity adapted to the mounting bracket, the auxiliary head is fitted over the mounting bracket through the cavity, and the inner wall of the cavity seals the mounting opening.

[0014] In some embodiments, the mounting bracket further includes a receiving cavity spaced apart from the mounting cavity, the light source assembly is disposed within the receiving cavity, and the light outlet is disposed on the side of the receiving cavity adjacent to the mounting cavity.

[0015] In some embodiments, a light-transmitting insulating element is provided between the receiving cavity and the mounting cavity.

[0016] In some embodiments, the optical path channel is disposed on one side of the cavity and communicates with the cavity. The end of the optical path channel facing away from the cavity has a light-transmitting opening, which is located on the light-emitting path of the host.

[0017] The accessory head also includes a light-transmitting skin-fitting component, which is disposed within the light path channel and covers the light-transmitting opening.

[0018] The skin care device provided in this application uses a detachable connection between the accessory head and the main unit. When installed, it can tightly seal the filter element, forming a physical protective barrier. Compared with traditional exposed filter structures, the sealing of the main unit or accessory head can effectively prevent the filter element from shifting due to external impacts. At the same time, it can effectively block the entry path of dust, preventing dust from affecting light transmittance and filter element performance, ensuring stable spectral filtration accuracy, and improving the beauty effect. Moreover, the detachable structure of the accessory head and the main unit facilitates filter element replacement and equipment maintenance, improving the use effect of the skin care device. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of an embodiment of the skin care device of this utility model;

[0020] Figure 2 This is a disassembly diagram of an embodiment of the skin care device of this utility model;

[0021] Figure 3 This is a cross-sectional schematic diagram of an embodiment of the skin care device of this utility model;

[0022] Figure 4 This is a partial disassembly diagram of an embodiment of the host of this utility model;

[0023] Figure 5 This is a schematic diagram of the structure of an embodiment of the filter element of this utility model;

[0024] Figure 6 This is a cross-sectional schematic diagram of an embodiment of the host of this utility model;

[0025] Figure 7 This is a schematic diagram of the structure of an embodiment of the header of this utility model;

[0026] Figure 8 This is a cross-sectional schematic diagram of an embodiment of the header of this utility model.

[0027] Explanation of icon numbers:

[0028] 100 Skin care equipment 10 host 20 Subordinate head 30 Filter 11 Light source components 12 light outlet 21 Optical path channel 13 Mounting rack 14 Mounting cavity 15 Installation opening 31 frame 32 Filter 311 Limiting flange 131 Button position 40 Position detection device 22 cavity 16 Container cavity 17 Light-transmitting insulating component 23 Light-transmitting opening 24 Translucent skin-fitting parts

[0029] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0030] The solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model.

[0031] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0032] It should also be noted that when a component is described as "fixed to" or "set on" another component, it can be directly on the other component or there may be an intervening component present. When a component is described as "connected to" another component, it can be directly connected to the other component or there may be an intervening component present.

[0033] Furthermore, the use of terms such as "first" and "second" in this utility model is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0034] Please refer to Figures 1 to 3 One embodiment of this application provides a skin care device 100, including a main unit 10, an auxiliary head 20, and at least one filter element 30;

[0035] The main unit 10 is provided with a light source assembly 11 and a light outlet 12 for the light source assembly 11 to emit light. The auxiliary head 20 is provided with an optical path channel 21 corresponding to the light outlet 12. At least one of the light outlet 12 and the optical path channel 21 is detachably provided with a filter element 30. The auxiliary head 20 is detachably connected to the main unit 10 to cover the filter element 30.

[0036] In this embodiment, the main unit 10 primarily provides light source supply and basic support. Its built-in light source component 11 provides light output, offering the energy foundation for skin care. The light outlet 12 serves as the channel for light emission, precisely controlling the direction and range of light emission. Simultaneously, the main unit 10 provides a connection interface for the auxiliary head 20, achieving stable assembly with the auxiliary head 20 through a mechanical structure, ensuring accurate alignment of the light path.

[0037] The optical path channel 21 inside the auxiliary head 20 precisely corresponds to the light output port 12 of the main unit 10, forming a complete light transmission path to ensure efficient light transmission to the skin's target area. The detachable connection design between the auxiliary head 20 and the main unit 10 allows it to completely cover the filter 30 in the assembled state, forming a physical protective barrier; when the filter 30 needs to be replaced, it can be exposed by disassembly, facilitating user replacement and maintenance.

[0038] Common detachable connection methods between the auxiliary head 20 and the main unit 10 include snap-fit ​​connection and magnetic connection. For example, quick installation and removal can be achieved by the elastic engagement of the elastic hook of the main unit 10 and the slot of the auxiliary head 20, which is simple to operate and has a low cost.

[0039] The filter element 30 can selectively filter the light emitted by the light source according to different skin care needs. Its functions include: first, filtering out harmful ultraviolet and other wavelengths to avoid skin damage; second, retaining specific functional wavelengths (such as the 515nm whitening wavelength and the 695nm hair removal wavelength) to ensure that the light accurately acts on the target skin tissue and achieve targeted skin care effects such as whitening, hair removal, and freckle removal.

[0040] The filter element 30 is detachably mounted at the light outlet 12 or the optical path channel 21, such as through a slot-type connection, magnetic connection, or snap ring connection. This detachable design allows the filter element 30 to be quickly replaced according to different skincare needs without altering the main structure of the device, effectively improving the device's functional expandability and usage flexibility, and meeting the spectral adjustment needs of diverse skincare scenarios.

[0041] It should be understood that the detachable installation of the filter element 30 at at least one of the light outlet 12 and the optical path channel 21 includes the following situations: First, the filter element 30 is installed only at the light outlet 12 of the main unit 10, for example, the filter element 30 can be detachably installed through a slot on the edge of the light outlet 12; second, the filter element 30 is installed only at the optical path channel 21 of the auxiliary head 20, for example, the filter element 30 is fixed in place by a spring clip structure on the inner wall of the optical path channel 21; third, the filter element 30 is installed at both the light outlet 12 and the optical path channel 21, for example, one filter element 30 is fixed to the light outlet 12 by magnetic attraction, and another filter element 30 with different functions is installed in the optical path channel 21 through a slot to meet the needs of more refined spectral screening.

[0042] The working principle of the skin care device 100 proposed in this application embodiment is as follows: the light source component 11 of the main unit 10 emits light, and after the light is emitted through the light outlet 12, it is transmitted to the skin surface through the optical path channel 21 of the auxiliary head 20; in the light transmission path, the filter 30 set at the light outlet 12 or the optical path channel 21 performs spectral screening on the light, filtering out harmful wavelengths and retaining the target efficacy wavelengths; the detachable connection structure between the auxiliary head 20 and the main unit 10 provides physical protection for the filter 30 during device operation and storage, ensuring the stable operation of the optical path system.

[0043] The skin care device 100 provided in this application has an accessory head 20 that is detachably connected to the main unit 10. When installed, it can tightly seal the filter element 30, forming a physical protective barrier. Compared with traditional exposed filter structures, the sealing of the main unit 10 or accessory head 20 can effectively prevent the filter element 30 from shifting due to external impacts. At the same time, it can effectively block the entry path of dust, preventing dust from affecting the light transmittance and the performance of the filter element 30, ensuring stable spectral filtration accuracy, and improving the beauty effect. Moreover, the detachable structure of the accessory head 20 and the main unit 10 facilitates the replacement of the filter element 30 and the maintenance of the device, improving the use effect of the skin care device 100.

[0044] In some embodiments, a mounting bracket 13 for mounting the filter element 30 is provided at the light outlet 12 and / or the optical path channel 21;

[0045] The mounting bracket 13 has a mounting cavity 14 adapted to the filter element 30 and a mounting opening 15 located on one side of the mounting cavity 14. The filter element 30 can be detachably inserted into the mounting cavity 14 through the mounting opening 15.

[0046] The light outlet 12 and / or the optical path channel 21 are provided with mounting brackets 13 for mounting the filter element 30, including the following situations: mounting bracket 13 is provided only at the light outlet 12; mounting bracket 13 is provided only at the optical path channel 21; and mounting bracket 13 is provided at both the light outlet 12 and the optical path channel 21. In this embodiment, the structure in which the mounting bracket 13 is provided only at the light outlet 12 is described as an example.

[0047] like Figure 4 As shown, the internal contour of the mounting cavity 14 is adapted to the size and shape of the filter element 30, which can form an all-round wrapping limit for the filter element 30, preventing the filter element 30 from shifting laterally or longitudinally during equipment use or movement, ensuring the coaxiality of the filter element 30 and the optical path, and ensuring the stability of the light filtering path.

[0048] The mounting opening 15 serves as the loading and unloading channel for the filter element 30. It is located on one side of the mounting cavity 14, and its opening size is slightly smaller than the maximum outer diameter of the filter element 30. This ensures that the filter element 30 can be inserted into the mounting cavity 14 through elastic deformation or precise alignment. After assembly, the slight clamping force at the edge of the opening enhances the fixing effect of the filter element 30. At the same time, it provides a clear operating entry point for users to replace the filter element 30, simplifying the loading and unloading process.

[0049] In this embodiment, the fitting design between the mounting cavity 14 and the filter element 30 enables standardized assembly of the filter element 30, avoiding positional deviations caused by manual installation. This ensures that the filter element 30 is always in the preset position in the optical path, guaranteeing the accuracy of spectral filtering and maintaining the stability of the cosmetic effect. The filter element 30 is fixed in the mounting cavity 14 by a snap-fit ​​method. Combined with the clamping action of the mounting opening 15, this enhances the impact resistance of the filter element 30, reduces the risk of loosening caused by external forces such as equipment vibration and collisions, and extends the effective service life of the filter element 30.

[0050] Furthermore, the installation opening 15 provides an intuitive operating path for replacing the filter element 30. Users can insert and remove the filter element 30 through the installation opening 15 without the need for tools, reducing the difficulty of replacement and improving the convenience of using the equipment. At the same time, the integrated design of the mounting bracket 13 also reduces the number of scattered parts inside the equipment, making it easier to assemble and maintain the equipment as a whole.

[0051] Please refer to Figure 4 and Figure 5 In some embodiments, the filter element 30 includes a frame 31 and a filter 32 disposed on the frame 31. The frame 31 is provided with an outwardly protruding limiting flange 311 along its circumference, and the limiting flange 311 forms a snap-fit ​​engagement with the cavity wall of the mounting cavity 14.

[0052] The frame 31 serves as the supporting skeleton for the filter 32, providing structural support for the filter 32 and ensuring that the filter 32 is not easily deformed or damaged during installation, use, and replacement. At the same time, the external dimensions of the frame 31 are adapted to the mounting cavity 14, which is the basic structure for connecting the filter 30 and the mounting frame 13.

[0053] The filter 32 is fixed on the frame 31 and can accurately filter out harmful light bands while retaining the target effective light bands. It directly determines the light filtering effect and provides an optical basis for the skin care device 100 to achieve beauty functions such as whitening, hair removal, and freckle removal.

[0054] The limiting flange 311 protrudes outward along the circumference of the frame 31. Its shape and size match the limiting structure of the cavity wall of the mounting cavity 14. After the filter element 30 is installed into the mounting cavity 14, it forms a snap-fit ​​with the cavity wall. The mechanical limiting prevents the filter element 30 from falling off or shifting in the axial direction, thereby enhancing the stability of the installation of the filter element 30.

[0055] In this embodiment, the snap-fit ​​engagement between the limiting flange 311 and the cavity wall of the mounting cavity 14 forms a reliable mechanical lock after the filter element 30 is installed. This effectively resists the influence of external forces such as vibration and tilt during equipment use, preventing axial movement or accidental detachment of the filter element 30 and ensuring the stability of the filter position. Furthermore, the stable support of the frame 31 for the filter 32 and the precise positioning function of the limiting flange 311 ensure that the filter 32 is always at the preset center position of the optical path, avoiding light filtering deviations caused by filter 32 offset, maintaining the accuracy of spectral selection, and ensuring the consistency of the cosmetic effect of the equipment.

[0056] In some embodiments, the mounting bracket 13 is provided with a handle position 131 on at least one side of the mounting opening 15 for a user to engage with their fingers to remove the filter 30.

[0057] The handle 131, serving as the operating structure on the mounting bracket 13, can employ an arc-shaped groove or a raised dot structure to provide users with a safe and effortless point of leverage. The shape of the handle 131 is designed to fit the natural curvature of the fingers, ensuring a comfortable and secure fit when the fingers are engaged. Its position corresponds to the edge of the mounting opening 15 and aligns with the exposed edge of the filter element 30, allowing users to apply force precisely to the point of contact with the filter element 30. This prevents deformation of the filter element 30 or damage to the mounting bracket 13 due to force misalignment, while also providing clear operational guidance and reducing the difficulty of replacing the filter element 30.

[0058] When the filter element 30 needs to be replaced, the user's fingers can naturally engage with the handle position 131. The contact between the fingers and the handle position 131 generates an upward pulling force. This force is transmitted to the edge of the filter element 30 through the handle position 131, overcoming the clamping friction between the limiting flange 311 and the cavity wall of the mounting cavity 14, so that the filter element 30 can be easily removed from the mounting cavity 14, realizing convenient disassembly of the filter element 30.

[0059] In this embodiment, the handle 131 provides a dedicated force point for removing the filter element 30, which solves the problem that the filter element 30 is difficult to hold and remove after it is stuck in the mounting cavity 14. Users can easily disassemble it by using their fingers without the need for tools, which simplifies the replacement process of the filter element 30.

[0060] Please continue to refer to this. Figure 4 In some embodiments, the skin care device 100 further includes a positioning detection device 40, which is disposed on at least one side of the mounting cavity 14 and is used to detect whether the filter element 30 is correctly installed in a preset position.

[0061] As a status monitoring component of the skin care device 100, the position detection device 40 monitors the installation position accuracy of the filter element 30 in real time. By using sensors (such as photoelectric sensors, mechanical contact sensors, etc.) to sense the presence and position parameters of the filter element 30, the physical position information is converted into an electrical signal and transmitted to the equipment control system, providing a safe start-up basis for the operation of the skin care device 100 and avoiding equipment malfunction or abnormal operation due to improper installation of the filter element 30.

[0062] When the filter element 30 is correctly inserted into the mounting cavity 14 and reaches the preset position, the positioning detection device 40 triggers the positioning signal; if the filter element 30 is not fully installed or the position is offset, the positioning detection device 40 outputs the non-position signal to determine whether the installation of the filter element 30 meets the usage requirements.

[0063] This embodiment uses a positioning detection device 40 to accurately detect the installation status of the filter element 30. If the filter element 30 is not installed correctly, it can trigger a device protection mechanism (such as preventing the light source component 11 from starting), preventing unfiltered light from directly irradiating the skin and causing damage, thus improving device safety. Furthermore, the positioning detection device 40 can be paired with an indicator light or an audible feedback module to provide users with clear installation status prompts, helping them quickly determine whether the filter element 30 is installed correctly, reducing repeated adjustments due to improper installation, and improving operational convenience.

[0064] It should be understood that the positioning detection device 40 is located on at least one side of the mounting cavity 14. For example, a photoelectric sensor can be embedded in the inner wall of the mounting cavity 14. When the filter element 30 is correctly installed, the frame 31 of the filter element 30 blocks the light path of the sensor and triggers the positioning signal. Alternatively, a mechanical contact switch can be set at the bottom of the mounting cavity 14. After the filter element 30 is fully inserted, the contact is squeezed to make the switch conduct and output the positioning signal. Or, a Hall sensor can be installed on the outer wall of the mounting cavity 14 to achieve non-contact position detection in conjunction with the magnetic component of the frame 31 of the filter element 30. This is not limited to these methods.

[0065] In some embodiments, the skin care device 100 includes at least two filters 30, and the mounting frame 13 is provided with at least two mounting cavities 14 arranged along the light direction of the light source assembly 11, with each mounting cavity 14 corresponding to a filter 30.

[0066] The device includes at least two filters 30, each of which can filter specific wavelengths. For example, the first filter can filter out ultraviolet wavelengths, while the second filter can filter out 515nm whitening wavelengths. By combining the functions of different filters 30, the device can meet complex skincare needs (such as achieving whitening and sun protection at the same time) and expand its functional coverage.

[0067] Each mounting cavity 14, arranged along the light direction, independently carries the corresponding filter element 30. The limiting structure on the inner wall of the cavity ensures the installation position accuracy of the filter element 30, so that the filtering plane of each filter element 30 is perpendicular and coaxial with the light direction, ensuring that the light passes through each filter element 30 perpendicularly in sequence, avoiding light scattering or filtering failure caused by angular deviation.

[0068] This embodiment utilizes a combination of different functional filter elements 30 to enable the skin care device 100 to simultaneously achieve multiple skin care effects. This eliminates the need for frequent replacement of individual filter elements 30, meeting complex skin care needs and enhancing the overall value of the device. Furthermore, the multi-stage filtration structure allows for step-by-step, refined light filtering, more thoroughly removing stray light and harmful wavelengths compared to single-filter filtration, further improving the purity of the target wavelength and enhancing the targeted and effective beauty results. Users can select different combinations of filter elements 30 to install in the corresponding mounting cavity 14 according to their skin care needs. By replacing one or more filter elements 30, multiple functions can be switched, balancing functional diversity and ease of operation to adapt to personalized skin care needs in different scenarios.

[0069] Please refer to Figure 3 and Figure 7 In some embodiments, the mounting bracket 13 is disposed on the main unit 10, and the auxiliary head 20 is provided with a cavity 22 adapted to the mounting bracket 13. The auxiliary head 20 is fitted over the mounting bracket 13 through the cavity 22, and the inner wall of the cavity 22 covers the mounting opening 15.

[0070] Among them, the mounting bracket 13 serves as an intermediate structure connecting the main unit 10 and the auxiliary head 20. It not only provides a mounting base for the filter element 30, but also provides a positioning reference for the cavity 22 of the auxiliary head 20 through its own shape, ensuring the coaxiality of the auxiliary head 20 and the main unit 10 during assembly and ensuring the alignment accuracy of the optical path.

[0071] The cavity 22 serves as an adapter structure for the auxiliary head 20. Its inner wall contour is precisely matched with the outer circumferential dimensions of the mounting bracket 13, enabling a tight fit between the auxiliary head 20 and the mounting bracket 13. At the same time, the inner wall of the cavity 22 covers the mounting opening 15, which plays a sealing and dustproof role, preventing the filter element 30 inside the mounting cavity 14 from being exposed.

[0072] During assembly, the auxiliary head 20 is fitted onto the outside of the mounting bracket 13 through the cavity 22, and precise alignment is achieved by matching the shape of the cavity 22 with that of the mounting bracket 13. During the fitting process, the inner wall of the cavity 22 naturally covers the mounting opening 15 of the mounting bracket 13, forming a closed structure to prevent external dust from entering the mounting cavity 14, and at the same time providing peripheral protection for the filter element 30 inside the mounting cavity 14.

[0073] In this embodiment, the recess 22 is fitted over the mounting bracket 13 and its inner wall seals the mounting opening 15, forming a sealed structure. This effectively prevents dust and impurities from entering the mounting cavity 14 and contacting the filter element 30, protecting the optical performance of the filter element 30 and extending the service life of the equipment. Moreover, the fitting structure between the mounting bracket 13 and the recess 22 provides rigid positioning for the assembly of the auxiliary head 20 and the main unit 10, ensuring precise alignment between the optical path channel 21 of the auxiliary head 20 and the light outlet 12 of the main unit 10, reducing light transmission loss and ensuring the stability of the beauty effect.

[0074] Please refer to Figure 6 In some embodiments, the mounting bracket 13 is further provided with a receiving cavity 16 spaced apart from the mounting cavity 14, the light source assembly 11 is disposed in the receiving cavity 16, and the light outlet 12 is disposed on the side of the receiving cavity 16 adjacent to the mounting cavity 14.

[0075] The accommodating cavity 16 serves as the installation space for the light source assembly 11. The cavity wall structure fixes and protects the light source assembly 11, preventing interference from the external environment. At the same time, it limits the initial propagation direction of the light, so that the light is concentrated and emitted from the light outlet 12, reducing the generation of stray light.

[0076] The mounting cavity 14 and the receiving cavity 16 are spaced apart and are set corresponding to the light outlet 12, providing an independent mounting position for the filter element 30. This ensures that the filter element 30 is directly facing the light outlet 12, so that the incident light acts perpendicularly on the surface of the filter element 30, ensuring the stability of the filtering effect. At the same time, the spaced design avoids direct contact between the filter element 30 and the light source assembly 11, preventing heat conduction from affecting the optical performance of the filter element 30.

[0077] The light outlet 12 serves as a light channel between the accommodating cavity 16 and the mounting cavity 14, precisely controlling the light emission range so that the light is transmitted to the filter 30 in a concentrated beam form, reducing energy loss during light transmission and improving light intensity utilization.

[0078] In this embodiment, the light source assembly 11 and the filter element 30 are independently placed by physical separation. After the light source assembly 11 emits light in the accommodating cavity 16, it is directionally transmitted to the filter element 30 in the adjacent mounting cavity 14 through the light outlet 12. The light transmission in the closed space reduces scattering loss and ensures that the light is accurately incident on the filter element 30 at a preset angle, thereby improving the spectral filtering efficiency.

[0079] Furthermore, the integrated design of the mounting frame 13 with the housing cavity 16 and the mounting cavity 14 reduces the assembly space of scattered parts inside the equipment, makes the positional relationship between the light source assembly 11 and the filter 30 more stable, reduces the overall size of the equipment, and makes it easier to carry and use.

[0080] In some embodiments, a light-transmitting insulating member 17 is provided between the accommodating cavity 16 and the mounting cavity 14.

[0081] In this embodiment, the light-transmitting insulating member 17 serves as a partition between the accommodating cavity 16 and the mounting cavity 14, and its main functions include:

[0082] 1. Allows light emitted from the light source assembly 11 to pass through efficiently, ensuring that the light can be smoothly transmitted from the accommodating cavity 16 to the filter 30 in the mounting cavity 14 without affecting the normal transmission of the light path, ensuring that the light can be transmitted from the accommodating cavity 16 to the filter 30 with high efficiency, and guaranteeing the skin care effect of the device.

[0083] Second, when the equipment is disassembled, a physical barrier is formed, covering the opening of the accommodating cavity 16 facing the mounting cavity 14, preventing foreign objects from entering the accommodating cavity 16 and contacting the light source assembly 11, thus protecting the light source.

[0084] Third, when the equipment is assembled, further enhance the sealing between the accommodating cavity 16 and the mounting cavity 14 to reduce the flow of dust and other impurities between them.

[0085] Among them, the light-transmitting isolation component 17 can be made of white glass, which has high light transmittance and strong chemical stability, ensuring efficient light transmission while resisting oxidation and corrosion during long-term use; or high-transmittance acrylic can be selected, which has good impact resistance and processing convenience, suitable for the production of isolation structures with complex shapes, and is not limited to this.

[0086] Please refer to Figure 7 and Figure 8 In some embodiments, the optical path channel 21 is located on one side of the cavity 22 and is connected to the cavity 22. The end of the optical path channel 21 facing away from the cavity 22 has a light-transmitting opening 23, which is located on the light-emitting path of the host 10.

[0087] The accessory head 20 also includes a light-transmitting skin-fitting component 24, which is disposed within the light path channel 21 and covers the light-transmitting opening 23.

[0088] As the transmission path of light from the concave cavity 22 to the light-transmitting port 23, the optical path channel 21 is aligned with the direction of the light, reducing reflection loss during light transmission and ensuring that the light is directionally transmitted to the light-transmitting port 23; at the same time, it is connected to the concave cavity 22 to ensure the smooth reception of the light and guarantee the continuity of the optical path.

[0089] The light-transmitting port 23 is located at the end of the light path channel 21 and on the light output path of the host 10, which precisely limits the range of light emission, so that the light is concentrated on the target skin area and avoids energy waste caused by light diffusion.

[0090] The light-transmitting skin-adhering component 24 covers the light-transmitting opening 23 and is made of a highly light-transmitting material, allowing light to pass through efficiently to ensure the skin care effect; at the same time, as the direct contact component between the skin care device 100 and the skin, its surface is smooth and has a certain degree of elasticity, improving the skin comfort when using the device.

[0091] The auxiliary head 20 forms a continuous light transmission path through the integrated optical path channel 21, the light outlet 12, and the light-transmitting skin-adhesive component 24. The light emitted by the light source assembly 11 of the main unit 10 enters the optical path channel 21 of the auxiliary head 20 through the light outlet 12, and is then directionally transmitted along the optical path channel 21 to the light-transmitting skin-adhesive component 24, and finally precisely guided to the skin surface through the light-transmitting skin-adhesive component 24.

[0092] In this embodiment, the directional transmission design of the optical path channel 21 is combined with the high light transmittance of the translucent skin-contact component 24 to reduce light loss during transmission and emission, ensuring that more effective light reaches the skin and enhancing the skincare effect. The translucent skin-contact component 24 covers the light-transmitting opening 23 to prevent direct light from hitting the skin and causing irritation. At the same time, its smooth and elastic surface reduces friction when in contact with the skin, lowering the risk of skin scratches and improving user comfort.

[0093] The above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make other variations or modifications based on the above description. It is impossible to exhaustively list all possible implementations here. All obvious variations or modifications derived from the technical solutions of this utility model are still within the protection scope of this utility model.

Claims

1. A skin care device, characterized in that, Includes a main unit, an auxiliary head, and at least one filter; The main unit is provided with a light source assembly and a light outlet for the light source assembly to emit light. The auxiliary head is provided with an optical path channel corresponding to the light outlet. The filter is detachably provided at at least one of the light outlet and the optical path channel. The auxiliary head is detachably connected to the main unit to cover the filter.

2. The skin care device according to claim 1, characterized in that, The light outlet and / or the optical path channel are provided with a mounting bracket for installing the filter element; The mounting bracket has a mounting cavity adapted to the filter and a mounting opening located on one side of the mounting cavity, and the filter can be detachably inserted into the mounting cavity through the mounting opening.

3. The skin care device according to claim 2, characterized in that, The filter element includes a frame and a filter sheet disposed on the frame. The frame has an outwardly protruding limiting flange along its circumference, and the limiting flange forms a snap-fit ​​engagement with the cavity wall of the mounting cavity.

4. The skin care device according to claim 3, characterized in that, The mounting bracket has a handle on at least one side of the mounting opening for the user to engage with their fingers to remove the filter.

5. The skin care device according to claim 2, characterized in that, The skin care device also includes a positioning detection device, which is located on at least one side of the mounting cavity and is used to detect whether the filter element is correctly installed in a preset position.

6. The skin care device according to claim 2, characterized in that, The skin care device includes at least two filters, and the mounting bracket has at least two mounting cavities arranged along the light direction of the light source assembly, with each mounting cavity corresponding to one of the filters.

7. The skin care device according to any one of claims 2 to 6, characterized in that, The mounting bracket is mounted on the host unit. The auxiliary head has a cavity that is adapted to the mounting bracket. The auxiliary head is fitted onto the outside of the mounting bracket through the cavity. The inner wall of the cavity seals the mounting opening.

8. The skin care device according to claim 7, characterized in that, The mounting bracket also has a receiving cavity spaced apart from the mounting cavity, the light source assembly is disposed in the receiving cavity, and the light outlet is disposed on the side of the receiving cavity adjacent to the mounting cavity.

9. The skin care device according to claim 8, characterized in that, A light-transmitting insulating element is provided between the accommodating cavity and the mounting cavity.

10. The skin care device according to claim 7, characterized in that, The optical path channel is located on one side of the cavity and is connected to the cavity. The end of the optical path channel facing away from the cavity has a light-transmitting opening, which is located on the light-emitting path of the host. The accessory head also includes a light-transmitting skin-fitting component, which is disposed within the light path channel and covers the light-transmitting opening.

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