CN221084448U - Skin care device - Google Patents

Abstract

The present application discloses a skin care device, including a handle shell, a light source structure, a care component, a heat dissipation component and a battery component, wherein the handle shell is used for a user to hold, the light source structure is fixed in the handle shell and is configured to emit a care light, the care component is arranged on the light emitting path of the care light and is configured to guide the care light to the outside of the handle shell, the heat dissipation component is installed in the handle shell and is used to dissipate the heat in the handle shell to the outside, the battery component is installed in the handle shell and is electrically connected to the light source structure and the heat dissipation component, wherein the light source structure can continuously emit the care light during the working cycle of the skin care device, and the wavelength corresponding to the maximum value of the light intensity of the care light is greater than or equal to 900 nanometers and less than or equal to 1800 nanometers. The technical solution of the present application realizes the improvement of the energy output efficiency of the skin care device and effectively improves the repair effect on the skin.

Description

Skin care equipment

Technical Field

The present application relates to the technical field of beauty care, and in particular to a skin care device.

Background technique

With the improvement of living standards, people pay more and more attention to skin care. In related technologies, skin care equipment can emit a type of near-infrared light, which is between visible light and infrared light, and can promote the repair and regeneration of cells in the human body, promote the enhancement of collagen fiber biological activity, and redistribute the dermis, thereby repairing damaged skin.

However, in the prior art, the light emitted from the skin care device has a poor effect on the skin, resulting in a poor repair effect on the treated area.

Utility Model Content

The embodiment of the present application provides a skin care device, which can improve the energy output efficiency of the skin care device and effectively improve the repair effect on the skin.

The present application embodiment provides a skin care device, which includes:

A handle shell, used for a user to hold;

A light source structure, fixed in the handle shell and configured to emit care light;

A care component, disposed on the light exit path of the care light, and configured to direct the care light to the outside of the handle shell;

A heat dissipation component, mounted on the handle shell, for dissipating heat in the handle shell to the outside; and

A battery component, mounted on the handle shell and electrically connected to the light source structure and the heat dissipation assembly;

The light source structure can continuously emit the care light during the working cycle of the skin care device, and the wavelength corresponding to the maximum value of the light intensity of the care light is greater than or equal to 900 nanometers and less than or equal to 1800 nanometers.

In some embodiments, the maximum light intensity of the care light corresponds to a wavelength greater than or equal to 1200 nanometers and less than or equal to 1800 nanometers.

In some embodiments, the maximum light intensity of the care light corresponds to a wavelength greater than or equal to 1300 nanometers and less than or equal to 1500 nanometers.

In some embodiments, the maximum light intensity of the care light corresponds to a wavelength greater than or equal to 1400 nanometers and less than or equal to 1600 nanometers.

In some embodiments, the ratio of the sum of energy values of light of wavelength corresponding to the maximum light intensity in the care light to the sum of energy values of all wavelengths of the care light is greater than 40%.

In some embodiments, the wavelength corresponding to the portion of the treatment light having a relative light intensity greater than 40% is in the range of 900 to 1800 nanometers.

In some embodiments, a reflector is further included which is fixed in the handle shell. On the light emitting path of the care light, the reflector is located on a side of the light source structure away from the care component and has a reflective surface facing the light source structure.

Wherein, the reflecting surface is used to reflect the care light emitted from the side of the light source structure facing away from the care component to the care component.

In some embodiments, it further includes a filter fixed in the handle shell, and the filter is located between the light source structure and the care component on the light exit path of the care light;

The optical filter is configured to transmit the care light of the light source structure within the wavelength range corresponding to the maximum light intensity value, and reflect the care light of the light source structure outside the wavelength range corresponding to the maximum light intensity value.

In some embodiments, a light homogenization structure is further included, and the light homogenization structure is a microlens array. On the light exit path of the care light, the microlens array is arranged on the surface of the care component facing the light source structure;

Wherein, the microlens array is configured to homogenize the care light emitted by the light source structure toward the care component.

In some embodiments, the light source structure is a halogen lamp or an LED lamp.

In some embodiments, the light source structure is a halogen lamp, and the relative light intensity of the care light within the wavelength range of 900 to 1800 nanometers emitted by the halogen lamp is greater than 40%.

In some embodiments, the light source structure is a laser module, the care component has a light incident surface facing the light source structure and a light emitting surface facing away from the light source structure, the care light enters through the light incident surface and is emitted through the light emitting surface;

The area of the light incident surface is smaller than the area of the light emitting surface so as to separate the care light incident on the care component.

In some embodiments, the handle shell forms a mounting cavity having an exhaust port, and the light source structure is mounted in the mounting cavity;

The heat dissipation component comprises:

A fan is installed in the installation cavity; and

A heat exchange component is installed in the installation cavity and is in thermal contact with the light source structure;

The fan drives the wind in the installation cavity to flow through the heat exchange component and the exhaust port in sequence, so as to dissipate the heat of the light source structure to the outside of the handle shell.

In some embodiments, the care component includes sapphire, the handle shell is formed with a light outlet connected to the interior thereof, the sapphire is arranged at the light outlet, and on the light outlet path of the care light, the sapphire has a cold compress surface away from the light source structure;

The cold compress surface is exposed through the light outlet and is configured to be in contact with the user's skin for cold compress.

In some embodiments, a light uniformity structure is further included. On the light emitting path of the care light, the light uniformity structure is arranged on the surface of the sapphire facing the light source structure;

Wherein, the light homogenization structure is configured to homogenize the care light emitted by the light source structure toward the sapphire.

In some embodiments, the care component further comprises a cooling sheet, which is connected to the side wall of the sapphire and electrically connected to the battery component;

Wherein, the cooling plate is in thermal contact with the sapphire.

In some of the embodiments, a circuit board and a temperature sensor are also included which are mounted on the handle housing;

The circuit board is provided with a control module, and the control module is electrically connected to the light source structure, the heat dissipation assembly, the battery component and the temperature sensor respectively;

The temperature sensor is used to obtain the detected temperature of the skin area being cared for, and when the detected temperature is greater than a preset temperature threshold, the control module controls the light source structure to stop working or adjust the output power of the light source structure, wherein the preset temperature threshold is a fixed temperature value or a temperature value range.

In some embodiments, a prompt device is further included, wherein the prompt device is mounted on the handle shell and is electrically connected to the control module;

Wherein, the prompt device is configured to issue a prompt message according to a comparison result between the detected temperature and a preset temperature threshold.

In some embodiments, a circuit board and a temperature sensor are further included which are mounted on the handle shell, the care assembly includes a care head and a cooling plate, the care head is arranged on the light exit path of the care light, and the cooling plate is connected to the side wall of the care head;

The circuit board is provided with a control module, and the control module is electrically connected to the light source structure, the heat dissipation component, the battery component, the temperature sensor and the cooling sheet respectively. The temperature sensor is used to obtain the detected temperature of the skin part being cared for.

When the detected temperature is greater than a preset temperature threshold, the control module controls the refrigeration plate to turn on, or increases the output power of the refrigeration plate, wherein the preset temperature threshold is a fixed temperature value or a temperature value range.

In some embodiments, the handle shell has a care side, and the care component is disposed on the care side;

Wherein, in the process that the light source structure continuously emits the care light, the care side is suitable for sliding contact with the part to be cared for of the user.

Based on the skin care device of the embodiment of the present application, by setting the light source structure to continuously emit care light during the working cycle of the skin care device, and the maximum wavelength of the care light is greater than or equal to 900 nanometers and less than or equal to 1800 nanometers, the skin care device of the embodiment has two effects:

First, in terms of skin care effects, when the wavelength is between 900 and 1800 nanometers, the water in each layer of human skin absorbs the energy of light better, which can better promote the metabolism of collagen cells in the skin, stimulate collagen regeneration, and achieve better skin care effects such as firming the skin and improving fine lines. When the maximum light intensity of the care light of the present application corresponds to a wavelength in the range of 900 to 1800 nanometers, under the condition of continuous wavelength, the energy of the care light can be concentrated on the light with a wavelength between 900 and 1800 nanometers, and the energy of light of different wavelengths within this range can act on different layers of the skin, so that the energy of the light can be better converted into skin care effects. At the same time, the light source structure of the skin care device of the present application can continuously emit care light in the working cycle. Compared with the intermittent form of emitting care light, the energy density of the care light in the form of continuous emission of the care light of the present application will be higher, so the photoelectric conversion rate of the light source structure of the present application is higher. Therefore, in the working cycle of the same length and the same power of the battery, the energy of the care light of the light source structure in the wavelength range of 900 to 1800 nanometers is higher, which can effectively improve the care effect of the care light on the user's skin. Therefore, when the maximum wavelength of the care light of the present application is in the range of 900 to 1800 nanometers, under the purpose of achieving the same skin care effect, the working cycle of the skin care device of the present application can be relatively shortened to improve the care efficiency;

On the other hand, when the maximum wavelength of the care light is between 900 and 1800 nanometers, the energy of the part of the care light that can play a better role in the user's skin is higher, so the care effect of the care light on the user's skin can be improved. In this way, the light source structure can use a structure with lower power. Compared with a light source structure with higher power, the battery life of the skin care device with the same battery capacity can be improved.

In addition, the energy of the care light outside the part that has a better effect on the user's skin is less, that is, the energy of the care light that is not between 900 and 1800 nanometers is lower. Since the wavelength range of blue light is between 400 and 450 nanometers, and the wavelength range of ultraviolet light is between 10 and 400 nanometers, the energy of blue light and ultraviolet light in the care light is lower, thereby reducing the risk of blue light and ultraviolet light causing damage to the user's eyes.

Second, in terms of the overall volume of the skin care device, compared to traditional large-scale skin care devices, which require a structural form that cooperates with the body and the handle assembly, the light source structure, care assembly, heat dissipation assembly, battery component, circuit board and other components of the present application can be integrated and installed on the handle shell, reducing the number of structures of the skin care device and achieving miniaturization of the skin care device. In addition, in existing skin care devices, capacitors are usually provided for energy storage to achieve intermittent emission of care light, while the light source structure of the skin care device of the present application, when achieving continuous emission of care light, the battery component continuously supplies power to the light source structure, and there is no need to set up energy storage devices such as capacitors. In this way, the skin care device of the present application can further reduce the overall volume of the skin care device and reduce the weight of the skin care device. In addition, when the maximum wavelength of the care light of the present application is between 900 and 1800 nanometers, the energy efficiency ratio of the care light can be improved. In this way, while achieving the desired skin care effect, a light source structure with lower power can be selected. Generally speaking, a light source structure with lower power has a smaller volume, thereby reducing the space occupied by the light source structure in the skin care device. During actual use, the skin care device of the present application has a reduced overall size and reduced weight, and the user only needs to hold the outer shell of the handle shell to operate the entire skin care device. Therefore, it is convenient for users to use and easy to operate even in a home environment.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

FIG1 is a schematic structural diagram of an embodiment of a skin care device of the present application;

Fig. 2 is a cross-sectional view of the A-A position shown in Fig. 1;

FIG3 is a partial enlarged view of point B in FIG2;

FIG4 is a schematic diagram of the exploded structure of the skin care device shown in FIG1 ;

FIG5 is a schematic diagram showing the relationship between wavelength and relative light intensity of different embodiments of the light source structure shown in FIG4 ;

FIG6 is a schematic diagram showing the relationship between the wavelength and energy of the nursing light when the light source structure in FIG5 is an LED lamp;

FIG7 is a schematic diagram showing the relationship between the wavelength and energy of the nursing light in another embodiment when the light source structure in FIG5 is an LED lamp;

FIG8 is a schematic diagram showing the relationship between the wavelength and energy of the care light when the light source structure in FIG5 is a laser module;

FIG9 is a schematic diagram showing the cooperation between the light source structure of the skin care device shown in FIG4 and an embodiment of a care component;

FIG. 10 is a schematic diagram showing the relationship between the absorption coefficient of water in human skin and the wavelength of near-infrared light.

Description of Figure Numbers:

100, skin care device; 10, handle shell; 10a, installation cavity; 10b, light outlet; 10c, exhaust outlet; 10d, guide channel; 11, top wall; 13, bottom wall; 15, side wall; 151, care section; 153, grip section; 17, housing; 17a, care side; 18, first mounting bracket; 19, second mounting bracket; 20, filter; 21, exhaust grille; 23, conductive member; 25, Flow guide; 30, care component; 31, light entrance surface; 33, light exit surface; 35, sapphire; 351, cold compress surface; 37, cooling plate; 40, reflector; 40a, open mouth; 41, reflective surface; 50, light source structure; 51, halogen lamp; 53; laser module; 60, uniform light structure; 61, microlens array; 70, heat dissipation component; 71, fan; 73, heat exchange component; 73a, air duct; 80, circuit board.

The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with embodiments and with reference to the accompanying drawings.

Detailed ways

In order to make the objectives, technical solutions and advantages of the present application clearer, the following part will further describe the embodiments of the present application in detail in conjunction with the accompanying drawings.

When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. Instead, they are only examples of devices and methods consistent with some aspects of the present application as detailed in the attached claims.

In the description of the present application, it should be understood that the terms "first", "second", etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances. In addition, in the description of the present application, unless otherwise specified, "multiple" refers to two or more. "And/or" describes the association relationship of associated objects, indicating that three relationships may exist. For example, A and/or B can represent: A exists alone, A and B exist at the same time, and B exists alone. The character "/" generally indicates that the objects associated before and after are in an "or" relationship.

Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used in this specification are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "and/or" used herein includes any and all combinations of one or more of the related listed items.

With the improvement of living standards, people pay more and more attention to skin care. In related technologies, skin care equipment can emit a type of near-infrared light, which is between visible light and infrared light, and can promote the repair and regeneration of cells in the human body, promote the enhancement of collagen fiber biological activity, and redistribute the dermis, thereby repairing damaged skin.

However, in the prior art, the light emitted by the skin care device has a poor effect on the skin, resulting in a poor repair effect and affecting the user experience.

To solve the above problems, please refer to Figure 1. The present application proposes a skin care device 100. In the embodiment of the present application, please refer to Figures 2 to 4. The skin care device 100 may include a handle shell 10, a light source structure 50, a care component 30, a battery component (not shown in the figure), a circuit board 80, a reflector 40, a uniform light structure 60 and a heat dissipation component 70.

The handle shell 10 is used for the user to hold, and its outer contour can be roughly in the shape of a cuboid, a cube or other polygonal prisms. The present application does not limit the outer contour shape of the handle shell 10. In addition, the handle shell 10 can include an outer shell 17, and the outer shell 17 can define the outline of the entire handle shell 10, and the main structure of the outer shell 17 can be a plastic material. For example, suitable exemplary materials that can be used include but are not limited to hard plastics, such as polyethylene, polypropylene (PP), polyamide and other plastics. Of course, the main structure of the outer shell 17 can also be a metal material, such as aluminum alloy, and the present application does not limit this.

The housing 17 of the handle housing 10 may be formed with a mounting cavity 10a, and the light source structure 50 and the reflector 40 may be fixed in the mounting cavity 10a of the housing 17 of the handle housing 10. The care component 30, the heat dissipation component 70, the battery component and the circuit board 80 may be mounted on the handle housing 10. Specifically, it may be one of the following two mounting forms:

The first installation form is: the handle shell 10 further includes a first mounting bracket 18 and a second mounting bracket 19, the first mounting bracket 18 is fixed in the mounting cavity 10a, and a mounting groove is formed, the mounting groove is used for the care component 30 to be installed, and the outer shell 17 of the handle shell 10 will form a light outlet 10b connected to its interior (that is, the mounting cavity 10a), and the mounting groove is connected to the mounting cavity 10a and communicates with the outside of the outer shell 17 through the light outlet 10b; the second mounting bracket 19 is fixed in the mounting cavity 10a, and is used for the reflector 40 to install the cavity 10a; the heat dissipation component 70, the battery component and the circuit board 80 are installed in the mounting cavity 10a; in this way, the care component 30, the reflector 40, the heat dissipation component 70, the battery component and the circuit board 80 are all fixed in the mounting cavity 10a, which can make the overall structure of the skin care device 100 more compact and the overall volume of the device smaller, and at the same time, the various components of the skin care device 100 can be protected by the outer shell 17, thereby extending the service life of the skin care device 100;

The second installation form is: the care component 30, the heat dissipation component 70, the battery component and the circuit board 80 can be installed outside the housing 17 of the handle housing 10, for example, they can be installed on the side wall 15 of the housing 17 of the handle housing 10. The present application does not limit the selection of the specific installation form of the components of the skin care device 100.

It is understandable that in the traditional large-scale skin care equipment, it is usually necessary to set up a housing to realize the installation of components such as the light source structure, the heat dissipation component, the battery component and the circuit board, and together form a fuselage. On this basis, a handle component for the installation of the care component 30 is additionally provided. The skin care function is realized through the cooperation of the handle component and the fuselage. This method will cause the skin care device to be too large in size and the number of structures is too large, resulting in the working scene of this traditional skin care device usually being in a beauty salon, which is not convenient for users to use in a home environment. The skin care device 100 of the present application, regardless of any of the above two installation forms, can make the light source structure 50, the care component 30, the reflector 40, the heat dissipation component 70, the battery component and the circuit board 80 integrated and installed on the handle shell 10, without the need to set up an additional handle component, reducing the number of structures, and realizing the miniaturization of the skin care device 100. In actual use, the user only needs to hold the outer shell 17 of the handle shell 10 to operate the entire skin care device 100. Therefore, even in a home environment, it is convenient for users to use, easy to operate, and improve the user experience.

In one structural form, the outer shell 17 of the handle shell 10 of the present application may include a top wall 11, a bottom wall 13 and a side wall 15, wherein the top wall 11 and the bottom wall 13 are arranged opposite to each other, and the side wall 15 is connected between the top wall 11 and the bottom wall 13, wherein the side wall 15 may include a care section 151 and a grip section 153, and the top wall 11, the bottom wall 13 and the side wall 15 cooperate to enclose the installation cavity 10a. The care section 151 is connected to the top wall 11, the care component 30 is installed on the care section 151, and the grip section 153 is connected between the care section 151 and the grip section 153, and is used for the user to grip. During the skin care process of the skin care device 100, the user needs to hold the outer shell 17 of the handle shell 10, and the holding time is usually long, for example, 5 to 20 minutes, and the skin care device 100 itself has a certain weight. When held for a long time, it will cause a certain burden on the user's wrist. Therefore, the present application installs the care component 30 on the care section 151 of the side wall 15, that is, in actual use, when the user holds the outer shell 17 of the handle shell 10, it is held vertically. Compared with the care component 30 installed on the top wall 11 and the user holds it horizontally, in the horizontal holding form, The tendons and ligaments of the wrist need to bear the weight of the skin care device 100, which will cause discomfort to the wrist when held for a long time. When held vertically, the tendons and ligaments of the wrist are relatively less stressed, and the weight of the skin care device 100 is more dispersed to the fingers and palms, thereby appropriately reducing the pressure of the skin care device 100 on the wrist when held for a long time. In this way, when the user holds the skin care device 100 for a long time to care for the skin, by installing the care component 30 on the care section 151 of the side wall 15, the pressure on the wrist can be appropriately reduced during the holding process, thereby further improving the user experience.

The light source structure 50 is configured to emit care light. The type of care light is near-infrared light. When the care light acts on the user's skin, the water in the skin will be irradiated by the care light and absorb the care light to increase the distance between each water molecule, so that the cells can produce more ATP (Adenosine triphosphate). ATP can promote the repair and regeneration of cells in the body, promote the enhancement of the biological activity of collagen fibers, redistribute the dermis, and repair damaged skin. In addition, the photothermal effect generated by the care light can enhance blood vessel function, dilate microvessels, accelerate blood circulation, increase blood oxygen content, accelerate the elimination of metabolic products, and also play a certain degree of skin care role.

The light source structure 50 may include but is not limited to the following three structural forms: 1. halogen lamp 51; 2. LED lamp; 3. laser module 53. Please refer to Figure 5, which is a schematic diagram of the relationship between the wavelength and relative intensity of the halogen lamp 51, LED lamp and laser module 53, wherein curve C represents the halogen lamp 51, curve D represents the LED lamp, and curve E represents the laser module 53.

When the light source structure 50 is a halogen lamp 51, the halogen lamp 51 emits care light by means of tungsten filament thermal radiation. Generally speaking, the wavelength range of the care light emitted by the halogen lamp 51 is relatively large, for example, the wavelength range may be from the wavelength range of visible light to the wavelength range of far infrared light. It is understandable that the care light with a relatively large wavelength range can balance the water absorption requirements of each layer of the skin. For example, the light with a wavelength range of 1300 to 1800 nanometers in the care light can penetrate the epidermis and dermis of the skin. Specifically, the light with a wavelength range of about 1500 nanometers can penetrate the epidermis and the superficial dermis, while the light with a wavelength range of 900 to 1300 nanometers can penetrate the epidermis, dermis and fat layer. In the actual setting process, the energy distribution of the care light emitted by the halogen lamp 51 can be adjusted by adjusting the temperature of the halogen lamp 51 itself or adjusting the heat dissipation effect of the heat dissipation component 70. The specific adjustment principle of the energy distribution of the care light of the halogen lamp 51 has been disclosed in the relevant technology, and this application will not repeat it.

When the light source structure 50 is an LED lamp, the care light emitted by the LED lamp can be concentrated within the required wavelength. For example, in FIG. 6 , the maximum light intensity of the care light emitted by the LED lamp will be within the wavelength range of 800 to 1000 nanometers, so as to penetrate the specific layer of the skin that needs care. For example, in FIG. 7 , the maximum light intensity of the care light emitted by the LED lamp will be within the wavelength range of 1300 to 1500 nanometers, so as to penetrate the specific layer of the skin that needs care. LED lamps also have advantages such as high luminous efficiency. In some structural forms, the LED lamp includes a plurality of lamp beads, so that the energy requirement of the required care light can be achieved by combining the light emitted by the plurality of lamp beads, and the plurality of lamp beads can be more flexibly arranged and installed on the outer shell 17 of the handle shell 10, so that the arrangement and arrangement of the components of the skin care device 100 can be more flexible and reasonable.

When the light source structure 50 is a laser module 53, the care light emitted by the laser module 53 can be concentrated within the required wavelength. For example, in FIG8 , the maximum value of the light intensity of the care light emitted by the laser module 53 is within the wavelength range of 1440 to 1470 nanometers, so as to penetrate the layer in the skin that specifically needs care. It should be noted that the different curves in FIG8 represent different types of care light emitted by the laser module 53, such as red, yellow, green, blue or purple care light. In addition, the light emission angle of the laser module 53 is relatively concentrated, which is convenient for accurately emitting care light to the care component 30. In some structural forms, please refer to FIG. 9 , the care component 30 has a light incident surface 31 facing the light source structure 50 and a light exit surface 33 facing away from the light source structure 50, the care light emitted by the laser module 53 enters through the light incident surface 31 and exits through the light exit surface 33, the care component 30 is arranged in a conical shape, and the area of the light incident surface 31 is smaller than the area of the light exit surface 33, so as to separate the care light incident on the care component 30, so that the conical structure of the care component 30 can make the area of the light incident surface 31 of the care component 30 smaller than the area of the light exit surface 33 of the care component 30, so that the care light is separated from the care component 30 by the light incident surface 31 of the care component 30. During the propagation between the light surface 31 and the light output surface 33, the care component 30 will separate it into two or more light beams with the same wavelength, so that the energy of the care light emitted by the laser module 53 can be dispersed, avoiding the excessive energy of the care light from acting on the user's skin, preventing damage to the skin, and improving the user's experience. In addition, by shaping the care light through the structural form of the care component 30, the skin care device 100 does not need to set a special beam shaping structure to match the laser module 53, which can reduce the number of components and further reduce the overall volume of the skin care device 100.

The care component 30 is arranged on the light exit path of the care light, and is configured to guide the care light to the outside of the shell 17 of the handle shell 10, and can be used to contact the user's skin. The care component 30 can be rectangular, square or conical as described above. When the care component 30 is installed on the first mounting bracket 18, the care component 30 can be embedded in the mounting groove and arranged corresponding to the light exit 10b. In this way, the care light can be directed to the user's skin under the guidance of the care component 30, reducing the loss of the care light during the propagation process.

In some structural forms, the care component 30 may include a care head and a cooling sheet 37. The care head may be a sapphire 35 and is disposed at the light outlet 10b. As shown in Figures 1 and 2, on the light outlet path of the care light 30, the sapphire 35 has a cold compress surface 351 that is away from the light source structure 50, and the cold compress surface 351 is exposed through the light outlet 10b and is configured to fit the user's skin for cold compress. It is understandable that the sapphire 35 may have the above-mentioned light incident surface 31 and the light exit surface 33, and the cold compress surface 351 may be formed by at least part of the light exit surface 33. The sapphire 35 has a good light transmission effect, which can effectively reduce the loss of the care light in the process of being guided by the sapphire 35, and the sapphire 35 has a good heat conduction effect, which can quickly cool the skin. Of course, in other structural forms, the care head may also be quartz stone, which is not limited in this application.

The cooling sheet 37 may be in a square shape and be a thin sheet structure. In some structural forms, the cooling sheet 37 may be a TEC (Thermo Electric Cooler) cooling sheet. The cooling sheet 37 is connected to the side wall of the sapphire 35 and is in thermal contact with the sapphire 35. In the actual working process, a cold end may be formed by the cooling sheet 37, and cold is transferred to the sapphire 35 through the cold end, so that the temperature of the sapphire 35 is reduced, or the heat of the sapphire 35 is transferred to the cooling sheet 37, so that the temperature of the sapphire 35 during the working process can be reduced, so that the sapphire 35 can be used to perform a cold compress on the skin when the sapphire 35 contacts the skin. In this way, under the cold compress effect of the sapphire 35, the problem of excessive skin temperature under the continuous effect of the nursing light on the skin can be avoided, and the user experience is provided. Of course, in other structural forms, the cooling sheet 37 can be replaced by a liquid cooling radiator, which is not limited in this application.

The battery component is electrically connected to the light source structure 50, the cooling sheet 37, the heat dissipation assembly 70 and the circuit board 80 to provide power to the light source structure 50, the cooling sheet 37 and the heat dissipation assembly 70. The battery component includes a rechargeable storage battery, such as a lithium battery. Of course, the battery component can be in the form of a dry cell or other forms, which is not limited in the present application.

The circuit board 80 may be provided with a control module (not shown in the figure), which is electrically connected to the light source structure 50, the cooling plate 37, the heat dissipation assembly 70 and other components, and is used to control the light source structure 50, the cooling plate 37, the heat dissipation assembly 70 and other components to operate. Specifically, the skin care device 100 also includes a conductive member 23, and the conductive member 23 may be in the shape of a hook. The circuit board 80 may be provided with an avoidance hole on its board surface, one end of the conductive member 23 is electrically connected to the light source structure 50, and the other end is passed through the avoidance hole to be electrically connected to the circuit board 80, so that the electrical connection between the light source structure 50 and the circuit board 80 can be achieved.

The reflector 40 may have an arc, frame or square cross-section, and may be made of metal, such as aluminum, aluminum alloy or stainless steel, so that the reflector 40 itself has the performance of reflecting the care light. In the direction from the light source structure 50 to the care component 30, the reflector 40 is located on the side of the light source structure 50 away from the care component 30, and has a reflective surface 41 facing the light source structure 50, and the reflective surface 41 is used to reflect the care light emitted from the side of the light source structure 50 facing away from the care component 30 to the care component 30.

In the process of the light source structure 50 actually emitting the care light, the care light is usually emitted in a diffuse form, that is, the care light will be emitted outward at multiple angles. For example, when the light source structure 50 is a halogen lamp 51, the halogen lamp 51 is usually cylindrical in shape, that is, it will emit care light along its own circumference, resulting in a small amount of care light actually incident on the care component 30, affecting the care effect on the skin. Based on this, the present application is provided with a reflector 40, and the care light emitted from the side of the light source structure 50 facing away from the care component 30 is reflected to the care component 30 by the reflector 40. In this way, the incident amount of care light that is finally incident on the care component 30 can be increased, and the emission amount of care light that is finally directed to the outside of the outer shell 17 of the handle shell 10 can be increased, thereby further improving the care effect on the skin.

The light homogenizing structure 60 is arranged on the side of the care component 30 facing the light source structure 50 on the light output path of the care light, wherein the light homogenizing structure 60 is configured to homogenize the care light emitted by the light source structure 50 toward the care component 30, so that the care light emitted by the light source structure 50 will be more uniform when it is finally reached to the user's skin after being homogenized, thereby improving the skin care effect of the care light.

In some structural forms, please continue to refer to Figure 9. The light homogenizing structure 60 can be a microlens array 61, which is arranged on the surface of the sapphire 35 of the care component 30 facing the light source structure 50 (that is, the light incident surface 31 of the care component 30), and includes a plurality of microlenses distributed in an array, so that the relatively concentrated care light will be divided into a plurality of sub-beams by the plurality of microlenses when passing through the microlens array 61, so as to achieve a light homogenizing effect on the care light; at the same time, the microlens array 61 can be directly etched on the light incident surface 31 of the sapphire 35 of the care component 30, so as to avoid the microlens array 61 and the sapphire 35 of the care component 30 from falling off, and can reduce the assembly steps. Of course, in other structural forms, the light homogenizing structure 60 can also be a light homogenizing sheet, and the present application does not limit this by attaching the light homogenizing sheet to the light incident surface 31 of the care component 30.

The heat dissipation component 70 is used to dissipate the heat in the handle shell 10 to the outside, that is, to dissipate the heat in the installation cavity 10a of the shell 17 to the outside. In actual use, the light source structure 50, the battery component, the components on the circuit board 80, and other components will generate a certain amount of heat. If the heat is not dissipated to the outside in time, the temperature in the installation cavity 10a will be too high, causing some components (such as components on the circuit board 80) to fail due to excessive temperature, which increases the risk of failure of the skin care device 100. In addition, it will also cause the temperature of the shell 17 of the handle shell 10 to rise, making it inconvenient for the user to hold the grip section 153 of the shell 17, affecting the user experience. Based on this, the present application sets a heat dissipation component 70, and forms an installation cavity 10a with an exhaust port 10c in the shell 17 of the handle shell 10, so that the heat in the installation cavity 10a is dissipated to the outside in time from the exhaust port 10c, so as to avoid the failure of some components of the skin care device 100, and can reduce the temperature of the shell 17 of the handle shell 10, so that it is convenient for the user to hold the shell 17. Optionally, the heat dissipation assembly 70 may include a fan 71, which is installed in the installation cavity 10a and is electrically connected to the circuit board 80 and the battery component. The air outlet of the fan 71 is arranged opposite to the exhaust port 10c, and the light source structure 50 is located on the path from the air outlet of the fan 71 to the exhaust port 10c. In this way, driven by the fan 71, the wind in the installation cavity 10a will flow from the installation cavity 10a to the exhaust port 10c, and finally flow out from the exhaust port 10c to the outside to take away the heat in the installation cavity 10a. In addition, an exhaust grille 21 may be provided, which is connected to the outer shell 17 of the handle shell 10 and is located at the exhaust port 10c. In this way, on the basis of exhausting the air flow, the possibility of foreign matter entering the installation cavity 12a through the exhaust port 10c is reduced.

The technical solution of the present application is to configure the light source structure 50 to continuously emit care light during the working cycle of the skin care device 100, and the wavelength of the maximum light intensity of the care light is greater than or equal to 900 nanometers and less than or equal to 1800 nanometers. Demonstratively, the wavelength of the maximum light intensity of the care light can be specifically set to be greater than or equal to 900 nanometers and less than or equal to 1200 nanometers, or to be greater than or equal to 1200 nanometers and less than or equal to 1600 nanometers, or to be greater than or equal to 1600 nanometers and less than or equal to 1800 nanometers, and the present application does not impose any restrictions on this.

It is understandable that the working cycle refers to the complete working cycle from the beginning of skin care to the end of skin care after the user turns on the skin care device 100, and during this working cycle, the light source structure 50 will continuously emit care light without interruption, and will not stop emitting care light until the end of skin care. When the wavelength range of the care light is between 900 and 1800 nanometers, the water in each layer of the skin has a large absorption coefficient for near-infrared light, which heats the dermis of the skin, promotes the metabolism of collagen cells, and stimulates collagen regeneration. It is understandable that when the wavelength corresponding to the maximum value of the light intensity of the care light is greater than or equal to 900 nanometers and less than 1800 nanometers, since the wavelength is continuous, the energy of the care light emitted by the light source structure 50 will be concentrated between the wavelength of 900 and 1800 nanometers. Specifically, the skin care device 100 of this embodiment has two effects:

First, in terms of skin care effects, when the wavelength is between 900 and 1800 nanometers, the water in each layer of human skin absorbs the energy of light better, which can better promote the metabolism of collagen cells in the skin, stimulate collagen regeneration, and achieve better skin care effects such as firming the skin and improving fine lines. When the maximum light intensity of the care light of the present application corresponds to a wavelength in the range of 900 to 1800 nanometers, under the condition of continuous wavelength, the energy of the care light can be concentrated on the light with a wavelength between 900 and 1800 nanometers, and the energy of light of different wavelengths within this range can act on different layers of the skin, so that the energy of the light can be better converted into skin care effects. At the same time, the light source structure 50 of the skin care device 100 of the present application can continuously emit care light in the working cycle. Compared with the intermittent form of emitting care light, the energy density of the care light in the form of continuous emission of the care light of the present application will be higher, so the photoelectric conversion rate of the light source structure 50 of the present application is higher. Therefore, in the working cycle of the same length and the same power of the battery, the energy of the care light of the light source structure 50 in the wavelength range of 900 to 1800 nanometers is higher, which can effectively improve the care effect of the care light on the user's skin. Therefore, when the wavelength of the maximum value of the light intensity of the care light of the present application is in the range of 900 to 1800 nanometers, under the purpose of achieving the same skin care effect, the working cycle of the skin care device 100 of the present application can be relatively shortened to improve the care efficiency;

On the other hand, when the wavelength of the maximum value of the light intensity of the care light is between 900 and 1800 nanometers, the energy of the part of the care light that can play a better role in the user's skin is higher, so the care effect of the care light on the user's skin can be improved. At the same time, the energy of the part of the care light that does not play a better role in the user's skin is less. In this way, the light source structure 50 can use a structure with lower power. Compared with the light source structure 50 with higher power, the light source structure 50 with lower power can improve the battery life of the skin care device 100 on the basis of the same battery capacity.

In addition, the energy of the care light other than that which has a better effect on the user's skin is less, that is, the energy of the care light that is not between 900 and 1800 nanometers is lower. Since the wavelength range of blue light is between 400 and 450 nanometers, and the wavelength range of ultraviolet light is between 10 and 400 nanometers, the energy of blue light and ultraviolet light in the care light is lower, thereby reducing the risk of blue light and ultraviolet light causing damage to the user's eyes.

Second, in terms of the overall volume of the skin care device, compared with traditional large-scale skin care devices that require a structural form that cooperates with the body and the handle assembly, the light source structure, care assembly, heat dissipation assembly, battery component, circuit board and other components of the present application can be integrated and installed on the handle shell, without the need for an additional handle assembly, thereby reducing the number of structures of the skin care device and achieving miniaturization of the skin care device. In addition, in existing skin care devices, capacitors are usually provided for energy storage to achieve intermittent emission of care light, while the light source structure 50 of the skin care device 100 of the present application continuously emits care light, and the battery component continuously supplies power to the light source structure 50, without the need to provide energy storage devices such as capacitors. In this way, the skin care device of the present application can eliminate the capacitor, which can further reduce the overall volume of the skin care device and reduce the weight of the skin care device. In addition, when the wavelength of the maximum light intensity of the care light of the present application is between 900 and 1800 nanometers, the energy efficiency ratio of the care light can be improved, so that a light source structure with lower power can be selected to achieve the desired skin care effect. Generally speaking, a light source structure with lower power can reduce the space occupied by the light source structure in the skin care device. In actual use, when the overall volume and weight of the skin care device of the present application are reduced, the user only needs to hold the outer shell of the handle shell to operate the entire skin care device. Therefore, even in a home environment, it is convenient for users to use and easy to operate, which improves the user experience. In addition, compared with the light source structure 50 being a xenon lamp, the maximum wavelength band of the xenon lamp is usually below 1000 nanometers, and the light with a wavelength below 1000 nanometers is not near-infrared light, so the xenon lamp has a poor skin care effect. If the xenon lamp is to achieve the same care effect as the skin care device 100 of the present application, its power needs to be increased, which will cause the xenon lamp to be too large and the overall volume of the device to be too large; at the same time, the xenon lamp usually emits stroboscopic light and has low efficiency. The light source structure 50 of the present application, whether it is a halogen lamp 51, an LED lamp or a laser module 53, can set the light intensity maximum wavelength within the range of 900 to 1800 nanometers, and can achieve sustainable light emission, which is better than the xenon lamp for skin care.

Secondly, in terms of the overall volume of the skin care device 100, compared to traditional large-scale skin care devices that require a structural form that cooperates with the body and the handle assembly, the light source structure 50, care assembly 30, heat dissipation assembly 70, battery components, circuit board 80 and other components of the present application can be integrated and installed on the handle shell 10 without the need for an additional handle assembly, thereby reducing the number of structures of the skin care device 100 and achieving miniaturization of the skin care device 100. In addition, in existing skin care devices, the light source structure often needs to be matched with a capacitor to store energy through the capacitor so as to achieve intermittent emission of care light, while the light source structure 50 of the skin care device 100 of the present application is actually In the case of continuously emitting the care light, the light source structure 50 does not need to work with a capacitor. In this way, the skin care device 100 of the present application can cancel the capacitor, which can further reduce the overall volume of the skin care device 100 and reduce the weight of the skin care device 100. In addition, when the wavelength of the maximum value of the light intensity of the care light of the present application is between 900 and 1800 nanometers, the energy efficiency ratio of the care light can be improved. In this way, when the desired skin care effect is achieved, a light source structure 50 with lower power can be selected. Generally speaking, the volume of the light source structure 50 with lower power is smaller than that of the light source structure 50 with higher efficiency, thereby reducing the space occupied by the light source structure 50 in the skin care device 100. In actual use, when the overall volume of the skin care device 100 of the present application is reduced and the weight is reduced, the user only needs to hold the outer shell 17 of the handle shell 10 to operate the entire skin care device 100. Therefore, even in a home environment rather than in a work scene such as a beauty salon, it is convenient for the user to use, easy to operate, and improve the user's experience.

In one embodiment, the present application sets the wavelength of the maximum value of the light intensity of the care light to be greater than or equal to 1200 nanometers and less than or equal to 1800 nanometers. Please refer to Figure 10. The absorption coefficient of the water in each layer of the skin to near-infrared light at a wavelength of 1200 nanometers is generally better than the absorption of near-infrared light with a wavelength range below 1200 nanometers. Therefore, when the wavelength of the maximum value of the light intensity of the care light is greater than or equal to 1200 nanometers and less than or equal to 1800 nanometers, the water in each layer of the human skin absorbs the energy of the care light better, further promoting the metabolism of collagen cells in the skin, stimulating collagen regeneration, and further achieving better skin tightening, improving fine lines and other skin care effects. In addition, the energy of the care light with a wavelength between 1200 and 1800 nanometers can account for a higher proportion of the energy of the care light in the total wavelength, thereby achieving the effect of improving the energy efficiency ratio of the care light. At the same time, it also means that the energy of the care light between 400 and 450 nanometers is lower, and at the wavelength of 400 to 450 nanometers, the energy of blue light accounts for a higher proportion, so it can also play a role in reducing the energy of blue light and reduce the risk of blue light causing damage to the user's eyes; and it also means that the energy of the care light between 10 and 400 nanometers is lower, and at the wavelength of 10 to 400 nanometers, the energy of ultraviolet light accounts for a higher proportion, so it can also play a role in reducing the energy of ultraviolet light and reduce the risk of ultraviolet light causing damage to the user's skin.

Exemplarily, the wavelength of the maximum light intensity of the nursing light can be specifically set to be greater than or equal to 1200 nanometers and less than or equal to 1400 nanometers, or to be greater than or equal to 1400 nanometers and less than or equal to 1600 nanometers, or to be greater than or equal to 1600 nanometers and less than or equal to 1800 nanometers, etc., and the present application does not impose any restrictions on this.

Further, the wavelength corresponding to the maximum value of the light intensity of the care light is greater than or equal to 1300 nanometers and less than or equal to 1500 nanometers. The present application sets the wavelength of the maximum value of the light intensity of the care light to be greater than or equal to 1300 nanometers and less than or equal to 1500 nanometers. Please continue to refer to Figure 10. When the absorption coefficient of the water in each layer of the skin to near-infrared light is in the wavelength range of 1300 to 1500 nanometers, the absorption effect is better. Therefore, when the wavelength of the maximum value of the light intensity of the care light is greater than or equal to 1300 nanometers and less than or equal to 1500 nanometers, the water in each layer of the human skin absorbs the energy of the care light better, further promoting the metabolism of collagen cells in the skin, stimulating collagen regeneration, and further achieving better skin tightening, improving fine lines and other skin care effects, and improving the user experience. Exemplarily, the wavelength of the maximum value of the light intensity of the care light can be specifically set to be greater than or equal to 1300 nanometers and less than or equal to 1400 nanometers, or set to be greater than or equal to 1400 nanometers and less than or equal to 1500 nanometers, etc., and the present application does not limit this.

Furthermore, the present application sets the maximum wavelength of the light intensity of the care light to be greater than or equal to 1400 nanometers and less than or equal to 1600 nanometers. Please continue to refer to Figure 10. The absorption coefficient of near-infrared light by water in each layer of the skin will be at a maximum state when the wavelength range is 1400 to 1800 nanometers. Therefore, when the maximum wavelength of the light intensity of the care light is greater than or equal to 1400 nanometers and less than or equal to 1600 nanometers, the water in each layer of the human skin can better absorb the energy of the care light, further promoting the metabolism of collagen cells in the skin, stimulating collagen regeneration, and further achieving better skin tightening, improving fine lines and other skin care effects, thereby improving the user experience. Exemplarily, the maximum wavelength of the light intensity of the care light can be specifically set to be greater than or equal to 1400 nanometers and less than or equal to 1500 nanometers, or set to be greater than or equal to 1500 nanometers and less than or equal to 1600 nanometers, etc., and the present application does not limit this.

In one embodiment, the ratio of the sum of the energy values of the light of the wavelength corresponding to the maximum value of the light intensity of the care light to the sum of the energy values of the total wavelength of the care light is greater than 40%. For example, when the wavelength corresponding to the maximum value of the light intensity of the care light is in the range of 900 to 1800 nanometers, the ratio of the sum of the energy values of the light in this range to the sum of the energy values of the total wavelength of the care light will be greater than 40%, that is, more than 40% of the energy in the care light is effectively utilized energy. Compared with the 10%-30% effective utilization energy ratio in the prior art, in the same working cycle and the same power of the power supply, the energy in the wavelength range of 900 to 1800 nanometers is higher, so as to further improve the metabolism of collagen cells in the skin, stimulate collagen regeneration, and further achieve better skin tightening, improvement of fine lines and other skin care effects, so that the energy efficiency ratio of the care light can be further improved.

In one embodiment, the wavelength corresponding to the portion of the nursing light whose relative light intensity is greater than 40% is within the range of 900 to 1800 nanometers. It can be understood that the relative light intensity refers to the ratio of the intensity value of the light corresponding to a certain wavelength to the maximum light intensity. For example, the C curve in FIG5 corresponds to the halogen lamp 51, and at this time, the wavelength corresponding to the portion of the nursing light emitted by the halogen lamp 51 whose relative light intensity is greater than 40% is within the range of 900 to 1800 nanometers; for another example, the D curve in FIG5 represents that the wavelength corresponding to the portion of the nursing light emitted by the LED lamp whose relative light intensity is greater than 40% is around 900 nanometers; for another example, the E curve in FIG5 represents that the wavelength corresponding to the portion of the nursing light emitted by the LED lamp whose relative light intensity is greater than 40% is around 1400 nanometers.

In this way, when the wavelength corresponding to the part with a relative light intensity greater than 40% is in the range of 900 to 1800 nanometers, the energy value of the care light in the range of 900 to 1800 nanometers is relatively large, so that the energy proportion of the part of the care light that acts on the skin with a better care effect will be higher, thereby making the energy efficiency ratio of the care light further improved. Relatively speaking, a lower-power light source structure 50 can be selected. Generally speaking, a lower-power light source structure 50 has a smaller volume than a higher-efficiency light source structure 50, thereby reducing the space occupied by the light source structure 50 in the skin care device 100, making the arrangement of components in the skin care device 100 more flexible, and being able to achieve a reduction in the volume of the skin care device 100 to be suitable for use in a home environment, and the weight can also be appropriately reduced for the user to hold.

In one embodiment, referring to FIG. 4 , when the cross-sectional shape of the reflector 40 is an arc, the reflector 40 may have an opening 40a facing the care component 30, and the reflector 40 surrounds the side of the light source structure 50 that is facing away from the care component 30, that is, in the circumferential direction of the light source structure 50, the area of the reflector 40 can cover most of the area of the light source structure 50, for example, the area of the reflector 40 can cover two-thirds of the area of the light source structure 50. In this configuration, the light source structure 50 is surrounded by the reflector 40, and while the part of the care light emitted by the light source structure 50 that is not directly directed to the care component 30 is not blocked, the part of the care light emitted by the light source structure 50 that is not directly directed to the care component 30 can be more reflected by the reflective surface 41 and reflected to the care component 30, so as to further improve the utilization rate of the care light.

The reflective surface 41 is configured so that the reflected care light can be emitted from the opening 40a in parallel to the care component 30. It can be understood that the contour line of the cross section of the reflective surface is set in a semicircular, elliptical, arc-shaped or parabolic shape, so that the curvature of the reflective surface 41 can be adjusted so that the care light can be emitted by the reflective surface 41 when it is incident on the reflective surface 41, and because the light incident surface 31 of the care component 30 is parallel to the plane where the opening 40a is located, when the care light is emitted from the opening 40a in parallel to the light incident surface 31 of the care component 30, the incident amount of the care light incident on the light incident surface 31 of the care component 30 can be further increased, and the care effect on the skin can be further improved.

In order to improve the reflection effect of the reflection surface 41, in one structural form, the material of the reflection member 40 of the present application can be aluminum. In another structural form, the reflection member 40 includes an aluminum film layer to form the reflection surface 41. Since the reflectivity of aluminum materials for light with a wavelength range of 780 to 2500 nanometers can usually reach more than 90%, when the reflection member 40 is made of aluminum or includes an aluminum film layer, the reflection surface 41 can better reflect the care light, reduce the loss of the care light during the reflection process of the reflection surface 41, and improve the utilization rate.

In one embodiment, please refer to Figures 2 to 4, the skin care device 100 of the present application also includes a filter 20. The filter 20 can be in a square shape or a round shape. For example, when the light incident surface 31 of the care component 30 is in a square shape, the filter 20 can be adapted to be in a square shape. The present application does not limit this, and the filter 20 can be a thin sheet structure. On the light output path of the care light, the filter 20 is located between the light source structure 50 and the care component 30. The filter 20 is configured to transmit the care light of the light source structure 50 within the wavelength range corresponding to the maximum light intensity value, and reflect the care light of the light source structure 50 outside the wavelength range corresponding to the maximum light intensity value. Under such a setting, the filter 20 can filter the care light, that is, filter the care light emitted by the skin care device 100 within the wavelength corresponding to the maximum light intensity and the care light emitted by the skin care device 100 outside the wavelength corresponding to the maximum light intensity. The care light within the wavelength corresponding to the maximum light intensity can be emitted to the care component 30, and the care light outside the wavelength corresponding to the maximum light intensity will be reflected back by the filter 20. In this way, the light that reaches the skin is only the care light within the wavelength corresponding to the maximum light intensity, that is, only this part of the care light can act on the skin, and the care light outside the wavelength corresponding to the maximum light intensity is prevented from acting on the skin. For example, visible light with a wavelength range of 390 to 780 nanometers will be filtered out by the filter 20, so as to prevent the visible light from absorbing the pigment on the surface of the skin to form a thermal effect, and prevent the epidermis of the user's skin from being too hot, so as to improve the user's experience.

In addition, when the energy of the care light is concentrated on the part of the wavelength corresponding to the maximum light intensity, that is, the energy of the part outside the wavelength corresponding to the maximum light intensity will be lower. In this way, when the higher energy part passes through the care component 30 and is guided to the outside of the outer shell 17 of the handle shell 10, this part of the energy will not remain in the installation cavity 10a, causing the heat in the installation cavity 10a to increase, but the part filtered by the filter 20 to remain in the installation cavity 10a will not cause the heat in the installation cavity 10a to be too high due to its lower energy. Based on this, the heat dissipation demand can be appropriately reduced, so the number of structures of the heat dissipation component 70 can be reduced, or a lower power heat dissipation component 70 can be selected. The lower power heat dissipation component 70 is generally smaller in volume than the higher power heat dissipation component 70. In this way, whether the number of structures is reduced or a lower power heat dissipation component 70 is selected, the space occupied by the heat dissipation component 70 in the skin care device 100 can be reduced, so that the arrangement of components in the skin care device 100 is more flexible, and the volume of the skin care device 100 can be reduced to be suitable for use in a home environment.

In some structural forms, when the filter 20 is fixed in the mounting cavity 10a of the outer shell 17 of the handle shell 10, it can be fixed by being embedded in the mounting groove of the first mounting bracket 18. Specifically, the first mounting bracket 18 can be provided with card grooves connected to the mounting grooves on both end surfaces along its extension direction, and the two ends of the filter 20 are respectively correspondingly carded in the two card grooves to achieve card-connection and fixation, which not only achieves a firm card connection but also facilitates disassembly and assembly.

In order to improve the heat dissipation efficiency of the heat dissipation assembly 70, please refer to Figures 2 to 4. In one embodiment, the heat dissipation assembly 70 includes a fan 71 and a heat exchanger 73. The fan 71 is installed in the installation cavity 10a, and the heat exchanger 73 is installed in the installation cavity 10a and is in thermal contact with the light source structure 50. The fan 71 drives the wind in the installation cavity 10a to flow through the heat exchanger 73 and the exhaust port 10c in sequence to dissipate the heat of the light source structure 50 to the outside of the shell 17 of the handle shell 10. It can be understood that the heat exchanger 73 can be a heat-conducting material, such as a metal material, and can be in contact with the side of the second mounting bracket 19 away from the reflector, and the second mounting bracket 19 can also be made of metal and have heat conductivity. In this way, the heat generated by the light source structure 50 can be conducted to the heat exchanger 73 through the second mounting bracket 19 to exchange heat with the heat exchanger 73. When the fan 71 is working, the wind in the mounting cavity 10a will flow through the heat exchanger 73 and then flow out through the exhaust port 10c, taking away the heat exchanged on the heat exchanger 73, thereby further achieving the heat dissipation effect.

Further, please continue to refer to Figures 2 to 4. The skin care device 100 may also include a guide member 25. The guide member 25 may be roughly in the form of a cover body, and may be made of plastic or metal, which is not limited in this application. The guide member 25 may be installed in the installation cavity 10a, and one end of the guide member 25 is connected to the heat exchange member 73 to form a guide channel 10d with the heat exchange member 73, and the guide channel 10d is connected to the installation cavity 10a, and the other end of the guide member 25 is connected to the exhaust port 10c, and the guide channel 10d is connected to the exhaust port 10c.

It is understandable that the heat exchange member 73 may include a substrate and a plurality of fins, the plurality of fins are mounted on the plate surface of the substrate, and are arranged at intervals along the width direction of the base, and the surfaces of two adjacent fins facing each other and the plate surface of the substrate will enclose an air flow channel, and the air flow channel will communicate with the internal space of the guide member 25 to cooperate to form a guide channel 10d. On the one hand, the sub-air outlets of the plurality of air flow channels are combined to form an air outlet, and generally speaking, in order to improve the heat dissipation efficiency, the area of the air outlet will be set larger, on the other hand, in order to improve the aesthetics of the outer shell 17 of the handle shell 10, the area of the exhaust port 10c will usually not be set too large, therefore, the area of the air outlet will be larger than the area of the exhaust port 10c, resulting in the wind flowing out of the air outlet partially returning to the installation cavity 10a, based on this, the present application sets the guide member 25, so that the wind flowing out of the air outlet flows to the exhaust port 10c under the guidance of the guide member 25, and then flows out from the exhaust port 10c to the outside, so as to further improve the heat dissipation efficiency.

In one embodiment, when the light source structure 50 is a halogen lamp 51, the relative light intensity of the care light in the wavelength range of 900 to 1800 nanometers emitted by the halogen lamp 51 is greater than 40%. It can be understood that the relative light intensity refers to the ratio of the intensity value of the light corresponding to a certain wavelength to the maximum light intensity. In this way, the energy intensity of the care light emitted by the halogen lamp 51 can be concentrated on the light in the wavelength band of 900 to 1800 nanometers, so that the energy of the care light in this wavelength range can better act on the skin, so that the skin care device 100 has a better skin care effect.

In one embodiment, the skin care device 100 of the present application further includes a temperature sensor (not shown in the figure), the temperature sensor is electrically connected to the control module, and the temperature sensor is used to obtain the detected temperature of the skin part being cared for, and when the detected temperature is greater than the preset temperature threshold, the control module controls the light source structure 50 to stop working or adjust the power of the light source structure 50, wherein the preset temperature threshold is a fixed temperature value or a temperature value range. For example, when the preset temperature threshold is a temperature value range, it can be a range between 40 and 42 degrees, and when the detected temperature is greater than the maximum value of the temperature value range, that is, greater than 42 degrees, it is easy to cause damage to the skin part being cared for, such as causing burns to the skin part. Therefore, when the detected temperature is greater than the preset temperature threshold, the control module can drive the switch device on the circuit board 80 to close the operation, so that the light source structure 50 can be stopped, or the power of the light source structure 50 can be adjusted to reduce the power of the light source structure 50, achieve energy reduction, and also reduce the output of light for skin care. In some structural forms, the temperature sensor can be a non-contact sensor, such as an infrared temperature sensor, to obtain the detected temperature of the skin area being cared for. Of course, the temperature sensor can also be a contact temperature sensor, such as a thermistor temperature sensor, and the present application does not impose any restrictions on this.

At the same time, when the detected temperature is greater than the preset temperature threshold, the control module controls the cooling plate 37 to turn on. In the actual working process, when the care light acts on the user's skin, it is easy to cause the skin to heat up due to the excessive energy acting on the skin, causing damage to the skin. Therefore, the detected temperature can be obtained through the temperature sensor. When the detected temperature is greater than the preset temperature threshold, the control module controls the cooling plate 37 to turn on, so as to reduce the temperature of the care head through the cooling plate 37, so as to achieve the effect of ice compress to reduce the skin temperature.

Alternatively, when the detected temperature is greater than a preset temperature threshold, the control module can increase the output power of the cooling plate 37. In actual operation, when the skin care device 100 starts to operate, the cooling plate 37 can be started at the same time, and when the detected temperature is greater than the preset temperature threshold, the control module increases the output power of the cooling plate 37 to improve the cooling effect, so that the temperature of the care head can be reduced, and the effect of cooling the skin by ice compress is achieved.

Further, the skin care device 100 of the present application also includes a prompt device (not shown in the figure), which is installed on the shell 17 of the handle shell 10 and is electrically connected to the control module, wherein the prompt device is configured to send a prompt message according to the comparison result between the detected temperature and the preset temperature threshold. In this way, the prompt device can be used to prompt the user, which plays a prompting role of reminder or warning. Specifically, the prompt device can be a prompt light, a prompt vibrator or a prompt horn. When it is a prompt light, an opening can be provided on the shell 17 of the handle shell 10 for the light emitted by the prompt light to pass through, so that the prompt light can be used as a prompt message by emitting light of different colors; when it is a prompt vibrator, the shell 17 of the handle shell 10 can be physically connected to drive the shell 17 to vibrate, so as to use different vibration degrees as prompt messages; when it is a prompt horn, different sounds can be emitted as prompt messages, and this application does not limit this.

For example, when the prompt device is a prompt light, and when the preset temperature threshold is a temperature value range, such as a range between 40 and 42 degrees, it may include but is not limited to the following three situations:

1. When the detected temperature is lower than the minimum value of the temperature range, that is, lower than 40 degrees, the temperature of the skin part being cared for is low, that is, it has not reached the required working temperature. At this time, the prompt light can emit green light according to the comparison result to prompt the user;

2. When the detected temperature is within the temperature value range, for example, 41 degrees, the temperature of the skin part being cared for reaches the required working temperature. At this time, the prompt light can emit blue light according to the comparison result to prompt the user;

3. When the detected temperature is greater than the maximum value of the temperature range, that is, greater than 42 degrees, it may easily cause damage to the skin area being cared for, such as burns. At this time, the prompt light may emit red light according to the comparison result to prompt the user.

In one embodiment, the outer shell 17 of the handle shell 10 has a care side 17a (as shown in FIG. 1 ), and the care component 30 is disposed on the care side, wherein the care side 17a is adapted to make sliding contact with the user's part to be cared for during the process of the light source structure 50 continuously emitting care light. In this way, when the light source structure 50 of the present application is capable of continuously emitting care light, the care side 17a of the outer shell 17 of the handle shell 10 can maintain contact with the part to be cared for by making sliding contact with the part to be cared for, and the care side 17a does not need to repeatedly contact and detach from the user, which facilitates the user to perform skin care operations.

The same or similar numbers in the drawings of this embodiment correspond to the same or similar parts; in the description of this application, it should be understood that if the terms "upper", "lower", "left", "right", etc. indicate an orientation or positional relationship based on the orientation or positional relationship shown in the drawings, it is only for the convenience of describing this application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and cannot be understood as a limitation on this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

The above are only preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims (20)

1. A skin care device, comprising:

The handle shell is used for being held by a user;

a light source structure fixed within the handle housing and configured to emit a nursing light;

A nursing component arranged on the light-emitting path of the nursing light and configured to guide the nursing light to the outside of the handle shell;

The heat dissipation assembly is arranged on the handle shell and is used for dissipating heat in the handle shell to the outside; and

The battery piece is arranged on the handle shell and is electrically connected with the light source structure and the heat dissipation assembly;

The light source structure can continuously emit the nursing light, and the wavelength corresponding to the maximum light intensity value of the nursing light is more than or equal to 900 nanometers and less than or equal to 1800 nanometers.

2. The skin care apparatus as claimed in claim 1, wherein the maximum value of the intensity of the care light corresponds to a wavelength of 1200 nm or more and 1800 nm or less.

3. The skin care apparatus as claimed in claim 2, wherein the maximum value of the intensity of the care light corresponds to a wavelength of 1300 nm or more and 1500 nm or less.

4. The skin care apparatus as claimed in claim 2, wherein the maximum value of the intensity of the care light corresponds to a wavelength of 1400 nm or more and 1600 nm or less.

5. The skin care apparatus as claimed in claim 1, wherein the ratio of the sum of the energy values of the light rays of the wavelength corresponding to the maximum value of the intensity of the care light rays to the sum of the energy values of the total wavelengths of the care light rays is greater than 40%.

6. The skin care device of claim 1, wherein the portion of the care light having a relative intensity of greater than 40% corresponds to a wavelength in the range of 900 to 1800 nanometers.

7. The skin care apparatus as claimed in any one of claims 1 to 6, further comprising a reflecting member fixed in said handle housing, said reflecting member being located on a side of said light source structure remote from said care assembly in an outgoing path of said care light rays and having a reflecting surface facing said light source structure;

The light source structure is used for emitting nursing light rays to the nursing assembly, wherein the reflecting surface is used for reflecting the nursing light rays emitted by one side of the light source structure, which is opposite to the nursing assembly, to the nursing assembly.

8. The skin care apparatus of any one of claims 1 to 6, further comprising a filter secured within said handle housing, said filter being positioned between said light source structure and said care assembly in the light exit path of said care light rays;

The optical filter is configured to transmit nursing light rays of the light source structure in a wavelength range corresponding to the maximum light intensity value, and reflect nursing light rays of the light source structure outside the wavelength range corresponding to the maximum light intensity value.

9. The skin care apparatus of any one of claims 1 to 6, further comprising a light homogenizing structure, said light homogenizing structure being a microlens array disposed on a surface of said care component facing said light source structure in an outgoing path of said care light rays;

wherein the micro-lens array is configured to homogenize the nursing light directed by the light source structure to the nursing assembly.

10. The skin care device of claim 1, wherein the light source structure is a halogen lamp or an LED lamp.

11. The skin care device of claim 10, wherein the light source structure is a halogen lamp and the relative intensity of the care light emitted by the halogen lamp in the wavelength range of 900 to 1800 nanometers is greater than 40%.

12. The skin care device of claim 1, wherein the light source structure is a laser module, the care assembly has a light entrance surface facing the light source structure and a light exit surface facing away from the light source structure, and the care light is incident through the light entrance surface and exits through the light exit surface;

The area of the light incident surface is smaller than that of the light emergent surface, so that nursing light incident into the nursing component is separated.

13. The skin care apparatus of claim 1, wherein said handle housing forms a mounting cavity having an air outlet, said light source structure being mounted within said mounting cavity;

The heat dissipation assembly includes:

The fan is arranged in the installation cavity; and

The heat exchange piece is arranged in the mounting cavity and is in heat conduction contact with the light source structure;

the fan drives wind in the installation cavity to sequentially flow through the heat exchange piece and the air outlet, so that heat of the light source structure is dissipated to the outside of the handle shell.

14. The skin care apparatus of claim 1, wherein said care assembly comprises a sapphire, said handle housing being formed with a light exit opening communicating with the interior thereof, said sapphire being disposed at said light exit opening and in the light exit path of said care light, said sapphire having a cold face facing away from said light source structure;

The cold compress surface is exposed through the light outlet and is configured to be attached to the skin of a user for cold compress.

15. The skin care device of claim 14, further comprising a dodging structure disposed on a surface of the sapphire facing the light source structure in a light exit path of the care light;

wherein the dodging structure is configured to dodge the nursing light emitted by the light source structure to the sapphire.

16. The skin care apparatus of claim 14, wherein said care assembly further comprises a cooling sheet connected to a sidewall of said sapphire and electrically connected to said battery member;

Wherein, the refrigeration piece with sapphire heat conduction contact.

17. The skin care apparatus of claim 1, further comprising a circuit board and a temperature sensor mounted to said handle housing;

The circuit board is provided with a control module which is respectively and electrically connected with the light source structure, the heat dissipation assembly, the battery piece and the temperature sensor;

The temperature sensor is used for acquiring the detection temperature of the skin part to be nursed, and when the detection temperature is greater than a preset temperature threshold, the control module controls the light source structure to stop working or adjusts the output power of the light source structure, wherein the preset temperature threshold is a fixed temperature value or a temperature value range.

18. The skin care apparatus of claim 17, further comprising a prompting device mounted to said handle housing and electrically connected to said control module;

The prompting device is configured to send out prompting information according to a comparison result of the detected temperature and a preset temperature threshold value.

19. The skin care apparatus of claim 1, further comprising a circuit board and a temperature sensor mounted to said handle housing, said care assembly comprising a care head and a cooling sheet, said care head being disposed in an outgoing path of said care light, said cooling sheet being attached to a side wall of said care head;

The circuit board is provided with a control module, the control module is respectively and electrically connected with the light source structure, the heat radiation assembly, the battery piece, the temperature sensor and the refrigerating sheet, and the temperature sensor is used for acquiring the detection temperature of the skin part to be nursed;

When the detected temperature is greater than a preset temperature threshold, the control module controls the refrigerating sheet to be started or improves the output power of the refrigerating sheet, wherein the preset temperature threshold is a fixed temperature value or a temperature value range.

20. The skin care apparatus of claim 1, wherein said handle housing has a care side, said care assembly being disposed on said care side;

Wherein, in the process that the light source structure continuously emits the nursing light, the nursing side is suitable for sliding contact with the part to be nursed of the user.