Photothermal type hair care device

Abstract

To provide a photothermal type hair care device which achieves hair care effects of curly / straight hair, simultaneously uses an effect of life light source to assist hair care and physiotherapy, and does not easily burn the hair even when heated by the light source.SOLUTION: A photothermal type hair care device includes a rod body 200, a light source assembly, and a power source assembly. The light source assembly is installed in the rod body 200 and is electrically connected to the power source assembly. The light source assembly includes a light source. Light radiated by the light source can be emitted from the rod body 200. The current invention uses a system of photothermal effects, uses a heating system of light thermal energy and space radiation to solve the problem of conduction of an intermediate medium and conduction efficiency, and instantaneously heats the hair quickly.SELECTED DRAWING: Figure 3

Description

[Technical Field]

[0001] The present application relates to the field of beauty and hairdressing, and in particular to a hair care device for hair care. [Background technology]

[0002] Currently available hair irons and straighteners generally use PTC or MCH heating methods (both PTC and MCH are ceramic heating methods, and are the common heating methods for hair irons and straighteners today) to curl or straighten hair. This heating method involves heating an aluminum rod or aluminum sheet, conducting heat to the hair, and allowing the hair to reach a certain temperature before deforming. During the heating process, the heat from the metal material is transferred through direct contact with the hair, causing the hair to become hot and difficult to control. The hair remains heated for a long time during the heating process, causing significant damage to the cuticle and medulla. The continuous heating process also causes significant evaporation of moisture from the hair, severely affecting the quality and luster of the hair. Summary of the Invention [Problem to be solved by the invention]

[0003] The present application aims to provide a photothermal hair care device to solve problems such as the significant damage caused to the hair cuticle and medulla by conventional hair irons or straighteners, and the significant evaporation of moisture from the hair during the continuous heating process, which seriously affects the quality and luster of the hair. [Means for solving the problem]

[0004] To achieve the objectives of the present application, the following technical solutions are provided: The present application provides a photothermal hair care device, comprising a rod body, a light source assembly, and a power supply assembly, wherein the light source assembly is installed within the rod body and electrically connected to the power supply assembly, the light source assembly comprises a light source, and light emitted from the light source can be emitted from the rod body.

[0005] This application uses the photothermal effect method, utilizing the thermal energy of light and the heating method of spatial radiation to solve the problems of intermediate medium conduction and conduction efficiency, rapidly and instantly heats the hair, achieving curl / straight hair care effects, and at the same time utilizing the effect of a life light source to support hair care and physical therapy, and the hair will not easily burn even when heated by the light source.

[0006] In some embodiments, the rod body is made of an optically transparent material. In some specific examples, the rod body is made of an optically transparent crystal, such as a transparent or translucent crystal. In some specific embodiments, the optically transparent crystal can be a glass product made of any of materials such as sapphire, quartz, borosilicate, etc., which is capable of transmitting light and conducting heat. In other embodiments, the rod body can also be made optically transparent by providing optically transparent holes in its sidewalls.

[0007] In a specific embodiment, the rod body has a chamber therein, and the light source assembly is disposed in the chamber and electrically connected to the power supply assembly.

[0008] In some embodiments, the photothermal hair care device further includes a housing, the power supply assembly is installed in the housing, and the rod body is fixedly or removably attached to the housing. The housing can also serve as a grip for a user to hold the hair care appliance.

[0009] In some embodiments, the housing includes a main body and an inlet, and the inlet has an inlet hole. In some embodiments, the rod body has an outlet hole, and the outlet hole communicates with the inlet hole to form an air passage. The air passage can circulate air inside the photothermal hair care device. That is, it can dissipate heat from internal components and lower the temperature of hair as needed. The inlet with the inlet hole may be located at the rear or end of the housing. The outlet hole can also function as a light-transmitting hole to transmit light.

[0010] In some embodiments, a suction cover is fitted to the outside of the suction part, and the suction cover has a through hole communicating with the suction hole. The suction cover can function as a dust prevention.

[0011] In some embodiments, the photothermal hair care device further includes a blow-drying assembly connected to the power supply assembly, the blow-drying assembly being installed in the air passage. After heating and curling the hair with the photothermal hair care device, when the blow-drying mode is turned on, the blow-drying assembly circulates air through the air passage and blows cool air onto the hair, rapidly lowering the temperature of the hair. This creates a rapid temperature change from high to low in the curled hair, which is advantageous for hair styling. The blow-drying assembly can be an air blower or a fan.

[0012] In some embodiments, the blowing hole penetrates the side wall of the rod body, and the angle between the penetration direction and the radial direction of the rod body is 0° to 90° or 0° to -90°. When multiple blowing holes are provided in the rod body, a blowing hole that rotates clockwise or counterclockwise can be formed. In some specific embodiments, the angle between the penetration direction and the radial direction of the rod body is 10° to 70° or 0° to -70°.

[0013] In some embodiments, the outlet hole penetrates the side wall of the rod body, extends in the longitudinal direction of the rod body, and the extending direction intersects with the axis of the rod body. In some specific embodiments, the included angle between the direction in which the outlet hole extends in the longitudinal direction of the rod body and the axis of the rod body is 0° to 70° or 0° to -70°.

[0014] The photothermal hair care device of the present invention heats and curls the hair, and then cools it down in conjunction with the cooling ventilation design. The combination of rapid heating and rapid cooling can achieve a rapid temperature difference.

[0015] In some embodiments, a filter element is installed before the light source emits light. Specifically, the filter element may be installed between the light source and the rod body, or may be coated on the light source. In a specific embodiment, the light source may be a lamp tube, and a filter film may be coated on the surface of the lamp tube, or on the rod body, or on the inner or outer surface of the rod body, or the rod body may be made of a filterable crystal. By using the photothermal hair care device of the present application, physical therapy can be performed on the hair / scalp using light waves of different wavelength bands. Different wavelength bands can be achieved by replacing the light source with one that can emit light of a different wavelength band. Light can be selected by filtering with a filter element before the light source emits it, or the required single wavelength band (e.g., 900-1800 nm, 380-450 nm, or 600-750 nm) can be selected by coating the surface of the lamp tube, or a multi-wavelength band film can be coated. That is, two or more light wave ranges (e.g., 380-450 nm + 900-1800 nm) can be selected, and films of different wavelength bands can be coated on different surfaces of the lamp tube in different directions, or on surfaces at different positions along the axial direction of the lamp tube, or the tube body can be coated with a coating, or a filter-capable crystal can be selected as the tube body, and the required single wavelength range (e.g., 900-1800 nm, 380-450 nm, or 600-750 nm) can be selected, or two or more light wave ranges can be selected and coated with a multi-wavelength band film (e.g., 380-450 nm + 900-1800 nm). Light waves of different wavelength ranges have different phototherapeutic effects on the hair / scalp. For example, selecting the near-infrared wavelength range of 900-2500 nm can promote blood circulation in the head. Red light waves of 600-750nm are used to regulate biochemical enzymes in the human scalp and hair follicles, such as 5-a reductase, which affects male pattern baldness, and tyrosinase, which affects gray hair. Protein is the main component of hair, and red light enhances the synthesis of ribonucleic acid in human tissue cells, thereby enhancing protein synthesis, which is beneficial for hair growth and increasing hair density and elasticity.It uses 420nm light waves to suppress the growth of Malassezia and improve folliculitis.

[0016] In some embodiments, the rod body is specifically a columnar body with a storage chamber inside, or the rod body is a columnar body with a middle part that penetrates both ends, and the storage chamber is the space in the middle part, and both ends are penetrated to allow air to flow easily.

[0017] In some embodiments, the power supply assembly includes a circuit motherboard, a conductive female terminal, and a power line, and can be connected to a power source via the power line and to the circuit motherboard via the conductive female terminal. The power supply assembly further includes a button circuit board and a button, the button circuit board is electrically connected to the circuit motherboard, and the button is attached to the housing via a button holder installed on the housing and matches the button circuit board. In other embodiments, a primary or secondary battery may be installed in the photothermal hair care device to provide power.

[0018] In some embodiments, the light source is a double-electrode lamp tube or a single-electrode lamp tube, specifically, any one of a halogen lamp, a carbon lamp, a tungsten lamp, and an incandescent lamp.

[0019] In some embodiments, the light source includes a lamp tube and a conductive sheet, the positive or negative power receiving terminal of the lamp tube is conductively connected via the conductive sheet, and both the positive and negative power receiving terminals of the lamp tube are electrically connected to the power supply assembly on one side of the lamp tube. In a specific embodiment, the conductive sheet includes an outer electrical ring disposed around the outside of the lamp tube and electrically connected to one of the positive and negative electrodes, and a straight conductor connected to the outer electrical ring, thereby guiding one of the positive and negative electrodes of the lamp tube from one side to the other of the lamp tube, facilitating both of the two electrodes to be electrically connected to the circuit motherboard on one side of the lamp tube. In other embodiments, the positive and negative electrodes of the lamp tube are electrically connected to the power supply assembly on one side of the lamp tube via a conductive head.

[0020] Compared with the prior art, the present application has the following advantages: The photothermal hair care device of the present application uses the photothermal effect method, utilizing the thermal energy of light and the heating method of spatial radiation to solve the problems of intermediate medium conduction and conduction efficiency, rapidly and instantly heats the hair, achieving curl / straight hair care effects, and at the same time utilizing the effect of a life light source to support hair care and physical therapy, and the hair will not easily be burned even when heated by the light source.

[0021] By using a light source for heating, 360-degree direct light radiation / irradiation heating can be achieved, and by utilizing light energy and the heat transfer at the speed of light, the hair can be heated rapidly. 360-degree synchronous heating makes the hair heat faster and more uniform, shortening the heating time and effectively reducing damage to the hair medulla caused by continuous heating.

[0022] It can also be combined with a cooling effect. After heating and curling with the photothermal hair care device, when the blow mode is turned on, the blow assembly circulates air through the ventilation duct, and by blowing cool air onto the hair, the temperature of the hair can be quickly lowered. This creates a rapid temperature change from high to low in the curled hair, which is advantageous for hair styling.

[0023] Different wavelengths of light have different phototherapeutic effects on hair and scalp. For example, near-infrared wavelengths of 900-2500nm can be selected to promote blood circulation in the scalp. Red light of 600-750nm regulates biochemical enzymes in the human scalp and hair follicles, such as 5-a-reductase, which affects male pattern baldness, and tyrosinase, which affects gray hair. Protein is the main component of hair, and red light enhances the synthesis of ribonucleic acid in human tissue cells, thereby enhancing protein synthesis, favoring hair growth and increasing hair density and elasticity. 420nm light inhibits the growth of Malassezia and improves folliculitis. [Brief explanation of the drawings]

[0024] [Figure 1] 1 is a schematic three-dimensional view of a photothermal hair care device according to a first embodiment of the present invention. [Figure 2] 1 is an exploded schematic view of a photothermal hair care device according to a first embodiment of the present invention. [Figure 3] FIG. 1 is a cross-sectional view of a photothermal hair care device according to a first embodiment of the present invention. [Figure 4] 1 is a schematic diagram of a double-electrode point light source of the photothermal hair care device of the present application. [Figure 5] 1 is a schematic diagram of a single-electrode point light source of the photothermal hair care device of the present application. FIG. [Figure 6] FIG. 2 is an exploded schematic view of a photothermal hair care device according to a second embodiment of the present invention. [Figure 7] 1 is a cross-sectional view showing the positional relationship between a light source and a rod body of a photothermal hair care device according to the present invention. FIG. [Figure 8] 8 is a schematic diagram of light emission from a light source in a cross-sectional view taken along the line AA in FIG. 7. [Figure 9] FIG. 2 is a schematic three-dimensional view of a photothermal hair care device according to a third embodiment of the present invention. [Figure 10] FIG. 2 is an exploded schematic view of a photothermal hair care device according to a third embodiment of the present invention. [Figure 11] FIG. 2 is a schematic three-dimensional view of a photothermal hair care device according to a fourth embodiment of the present invention. [Figure 12]FIG. 2 is an exploded schematic view of a photothermal hair care device according to a fourth embodiment of the present invention. [Figure 13] FIG. 1 is a cross-sectional view of a photothermal hair care device according to a fourth embodiment of the present invention. [Figure 14] FIG. 1 is an exploded schematic view of a photothermal hair care device according to a fifth embodiment of the present invention. [Figure 15] FIG. 1 is a schematic three-dimensional view of a photothermal hair care device according to a sixth embodiment of the present invention. [Figure 16] FIG. 10 is a schematic diagram showing the disassembly and assembly of Example 7 of the photothermal hair care device of the present application. [Figure 17] FIG. 10 is an exploded schematic view of Example 8 of the photothermal hair care device of the present application. [Figure 18] FIG. 10 is a cross-sectional view of Example 8 of the photothermal hair care device of the present application. [Figure 19] FIG. 10 is a cross-sectional view of Example 9 of the photothermal hair care device of the present application. [Figure 20] FIG. 12 is a schematic three-dimensional view of Example 10 of the photothermal hair care device of the present application. [Figure 21] FIG. 12 is an exploded schematic view of Example 10 of the photothermal hair care device of the present application. [Figure 22] FIG. 12 is a cross-sectional view of Example 10 of the photothermal hair care device of the present application. [Figure 23] This is a schematic diagram of an assembly of Example 10 of the photothermal hair care device of the present application using a detachable system. [Figure 24] FIG. 24 is a schematic diagram of the blowout in a cross-sectional view of the embodiment of FIG. 23. [Figure 25] FIG. 13 is a schematic diagram of an example of replacing the light source in Example 10 of the photothermal hair care device of the present application. [Figure 26] FIG. 11 is a schematic diagram showing the disassembly and assembly of the photothermal hair care device according to Example 11 of the present invention. [Figure 27] FIG. 11 is a schematic diagram of blowout in a cross-sectional view of Example 11 of the photothermal hair care device of the present invention. [Figure 28] FIG. 12 is a schematic diagram showing the disassembly and assembly of the photothermal hair care device according to Example 12 of the present invention. [Figure 29] FIG. 12 is a schematic diagram of blowout in a cross-sectional view of Example 12 of the photothermal hair care device of the present application. [Figure 30] FIG. 12 is a schematic three-dimensional view of Example 13 of the photothermal hair care device of the present application. [Figure 31] FIG. 12 is an exploded schematic view of Example 13 of the photothermal hair care device of the present application. [Figure 32] FIG. 12 is a schematic diagram showing the disassembly and assembly of Example 13 of the photothermal hair care device of the present application. [Figure 33] FIG. 1 is an exploded schematic view of Example 14 of the photothermal hair care device of the present application. [Figure 34] FIG. 10 is a schematic diagram of blowout in a cross-sectional view of Example 14 of the photothermal hair care device of the present application. DETAILED DESCRIPTION OF THE INVENTION

[0025] The terms "first," "second," "third," "left," "right," "upper," and "lower" used in this application are not intended to limit the features of the technical solutions of this application, but are merely intended to distinguish and describe each component.

[0026] 1 to 3 are schematic diagrams of a first embodiment of a photothermal hair care device according to the present invention. The photothermal hair care device includes a housing 100, a rod body 200, a light source assembly, and a power supply assembly. The power supply assembly includes a circuit motherboard 400 installed in the housing 100, and a conductive female terminal 410 and a power line 420 electrically connected to the circuit motherboard 400. The power supply assembly can be connected to a power source via the power line 420, and external electricity can be connected to the circuit motherboard 400 via the conductive female terminal 410. The rod body 200 is fixedly or detachably attached to the housing 100, and the housing 100 can also serve as a handle for a user to hold the hair care device. The rod body includes a receiving chamber 220, and the light source assembly is installed in the receiving chamber 220 and electrically connected to the power supply assembly. The light source assembly includes a light source, and light emitted from the light source can be emitted from the rod body 200. As shown in the first embodiment, the rod body 200 is fixed integrally with the housing 100, a connection ring 521 is provided at the connection point, and a front protection cover 510 is provided at the tip of the rod body 200.

[0027] The power supply assembly further includes a button circuit board 430 and a button 450, the button circuit board 430 is electrically connected to the circuit motherboard 400, and the button 450 is attached to the housing 100 via a button holder 440 installed on the housing 100, and is consistent with the button circuit board 430. In some other embodiments, a primary or secondary battery may be installed in the photothermal hair care device to realize power supply.

[0028] This application uses the photothermal effect method, utilizing the thermal energy of light and the heating method of spatial radiation to solve the problems of intermediate medium conduction and conduction efficiency, rapidly and instantly heats the hair, achieving curl / straight hair care effects, and at the same time utilizing the effect of a life light source to support hair care and physical therapy, and the hair will not easily burn even when heated by the light source.

[0029] The light source can be any one of a halogen lamp, a carbon lamp, a tungsten lamp, and an incandescent lamp. As shown in Figures 2 to 4, the light source is a double-electrode lamp tube 300, whose positive and negative power receiving terminals are respectively disposed on both sides of the lamp tube 300. In this embodiment, the light source assembly further includes a conductive sheet 310, and the positive or negative power receiving terminal on one side of the lamp tube 300 is conductively connected via the conductive sheet 310 and then led to the other side, whereby the positive and negative power receiving terminals of the lamp tube 300 are both electrically connected to the power supply assembly on one side of the lamp tube 300. In a specific embodiment, the conductive sheet 310 includes two outer electrical rings 311 respectively disposed around the outside of both ends of the lamp tube 300, with one outer electrical ring 311 electrically connected to one of the positive and negative electrodes on one side. The conductive sheet 310 further includes a straight conductor 312 connecting the two outer electrical rings 311, thereby guiding one of the positive and negative electrodes of the lamp tube 300 from one side to the other, facilitating electrical connection of both electrodes to the circuit motherboard 400 on one side of the lamp tube 300. Referring to FIG. 5 , in other embodiments, a single-electrode lamp tube 301 can be used instead, with the positive and negative electrodes of the lamp tube 301 electrically connected to the power supply assembly on one side of the lamp tube 301 via a conductive head 302. In Example 2 shown in FIG. 6 , the light source uses a single-electrode lamp tube 301. Alternative designs for the light source can be incorporated into each embodiment.

[0030] Please also refer to Figures 7 and 8, which are cross-sectional schematic diagrams showing the positional relationship between the light source and the rod body, and cross-sectional schematic diagrams of light emission. The figures are simplified structural schematic diagrams intended to explain the positional relationship and the light emission path. In the drawings, "a" is a simplified structural schematic diagram of the rod body, "b" is a simplified structural schematic diagram of the light source, "c" is the light emission direction, and "d" is the hair wrapped around the rod body. Please also refer to Figures 1 to 6. The rod body 200 is a light-transmitting crystal, specifically, a transparent or translucent crystal, and glass products such as sapphire, quartz, or borosilicate can be used to achieve light transmission and heat conduction. The photothermal hair care device of the present application utilizes a light source for heating, and the light-transmitting rod body can emit light directly in 360° to perform light radiation / irradiation heating on the hair. Utilizing light energy and the heat transfer at the speed of light, the hair can be heated rapidly, and the 360° synchronous heating makes the hair heated faster and more uniformly, shortening the heating time and effectively reducing damage to the hair medulla caused by continuous heating. In some other embodiments, the rod body 200 can also have openings in the side walls to allow light to pass through.

[0031] 9 and 10 are schematic diagrams of a photothermal hair care device according to a third embodiment of the present invention. The rod body 201 is provided with outlet holes 210, which communicate with each other to form ventilation passages, thereby providing a certain cooling effect as needed and also serving as light-emitting holes and light-transmitting holes. The design of the outlet holes can be incorporated into each embodiment.

[0032] Please refer to Example 4 of the photothermal hair care device of the present application together with Figures 11 to 13. Unlike the above-mentioned examples, the rod body 200 of this photothermal hair care device is detachably attached to the housing 101. A connecting base 530 is provided at one end of the rod body 200 connected to the housing 101, with a male thread on the connecting base and a female thread (not shown) on the connecting portion of the housing 101, and the two are threadedly attached and fixed together, but are also detachable. A ventilation hole 532 is provided at the end of the connecting base 530 facing the housing 101, and the ventilation hole 532 communicates with the receiving chamber 220 inside the rod body 200. The detachable design is not limited to a screw-fitting attachment / detachment method, and detachable fitting methods such as snap fitting, interference fitting, and slot fitting can also be used. The number of the ventilation holes 532 may be multiple as shown in Fig. 11, or one, two, three, or four as shown in Fig. 12, and is not limited thereto. The ventilation holes 532 connect the receiving chamber 220 of the rod body 200 with the interior of the housing 101, thereby allowing the entire photothermal hair care device to communicate with each other and allow air to flow, promoting temperature balance throughout the product. The detachable design can be incorporated into each embodiment.

[0033] Please refer to Example 5 of the photothermal hair care device of the present application in conjunction with Figure 14. In this example, a rod body 201 is provided with an outlet hole 210, and combined with a detachable design, it embodies the flexible combination of different component designs and their conversion embodiments. The rod body 201 of the photothermal hair care device is detachably attached integrally to the housing 101, and one end of the rod body 202 connected to the housing 101 is provided with a connecting base 530, which is connected to the housing 101 by screwing, and an air vent 532 is provided at the end of the connecting base 530 facing the housing 101.

[0034] Please also refer to Figures 15 to 18, which are schematic diagrams related to Examples 6, 7, and 8 of the photothermal hair care device of the present application. A major design point common to these three examples is the design of the suction structure. Referring to Figures 15 to 18, the housing 102 includes a main body 110 and a suction section 120, and the suction section 120 is provided with a suction hole 140. The suction hole 140 can introduce external air into the hair care device, and is connected to the rod main body 200. The front protective cover 510 is provided with a through-hole 511 that communicates with the interior of the rod main body 200, allowing air to circulate and be discharged. As shown in Figures 16 and 18, air circulates in the direction of the arrows. The housing 102 further includes an intake cover 130 fitted onto the outside of the intake portion 120, and the intake cover 130 has a through hole 131 communicating with the intake hole 140, so that the intake cover 130 can perform dust prevention and protection functions.

[0035] The photothermal hair care device further includes a blow-drying assembly connected to the power supply assembly and installed in the air passage. After heating and curling the hair with the photothermal hair care device, when the blow-drying mode is turned on, the blow-drying assembly circulates air through the air passage and blows cool air onto the hair, rapidly lowering the temperature of the hair. This creates a rapid temperature change from high to low in the curled hair, which is advantageous for hair styling. The blow-drying assembly can use a blower or fan 600, as shown in Figures 17 and 18.

[0036] Referring to FIG. 19, the difference between Example 9 and Example 8 of the photothermal hair care device of the present invention is that the double-electrode lamp tube 300 serving as the light source is replaced with a single-electrode lamp tube 301.

[0037] Please refer to Figures 20 to 34, which show Examples 10 to 14 of the photothermal hair care device of the present application. Figures 20 to 25 are schematic diagrams related to Example 10 and its combination with the above-mentioned feature transformation. The photothermal hair care device includes a housing 102, a rod body 201, a light source assembly, and a power supply assembly. The power supply assembly includes a circuit motherboard 400 installed in the housing 102, and conductive female terminals 410 and power lines 420 electrically connected to the circuit motherboard 400. The power supply assembly can be connected to a power source via the power lines 420, and external electricity is connected to the circuit motherboard 400 via the conductive female terminals 410. The light source assembly is installed in the receiving chamber 220 of the rod body and is electrically connected to the power supply assembly. 21 and 22, the light source of the light source assembly uses a double-electrode lamp tube 300, which is provided with a conductive sheet 310, so that the light emitted from the lamp tube can be emitted from the rod body 201 at an emission angle of 360 degrees. Alternatively, the light source of the light source assembly may use a single-electrode lamp tube 301 as shown in FIG.

[0038] 20, 21, and 25, a connection ring 521 is provided at the connection portion between the rod body 201 and the housing 102, a front protective cover 510 is provided at the tip of the rod body 201, and a rear protective cover 520 is further provided at the connection portion at the rear end. Alternatively, the rod body 201 and the housing 102 are detachably attached together by screwing, and as shown in FIGS. 22 and 23, a connection base 530 is provided at one end of the rod body 201 connected to the main body 110 of the housing, a male thread is provided on the connection base 530, and a female thread (not shown) is provided at the connection portion of the main body 110 of the housing, and the two are screwed together to be attached and fixed together and detachable. An air vent 532 is provided at the end of the connecting base 530 facing the housing 102, and the air vent 532 is connected to the storage chamber 220 and the blowing hole 210 inside the rod main body 201, and the rod main body 201 is connected to the internal space of the housing 102, allowing air to flow.

[0039] The housing 102 includes a main body 110 and an intake part 120, and the intake part 120 is provided with an intake hole 140, which can introduce external air into the hair care device and is connected to the rod body 201. The housing 102 further includes an intake cover 130 fitted to the outside of the intake part 120, and the intake cover 130 is provided with a through hole 131 which is connected to the intake hole 140, and the intake cover 130 can perform dust prevention and protection functions.

[0040] The rod body 201 is provided with an outlet hole 210, which penetrates the side wall of the rod body 201 in the radial direction of the rod body 201 and communicates with the inlet hole 140 to form an air passage. The air passage allows air inside the photothermal hair care device to circulate through the air passage. That is, it can dissipate heat from internal components and lower the temperature of hair as needed. The suction section 120 with the suction holes 140 is located at the rear of the housing 100, and its occupied area can be adjusted as needed. The shapes, distribution patterns, and layout directions of the blowing holes 210, suction holes 140, and through holes 131 are not limited and may be circular holes, rectangular holes, holes of other geometric shapes, slots, etc., and may be uniformly distributed or locally densely distributed. By designing the hole diameter, distribution density, and shape variations, it is possible to meet the actual needs of suction and blowing in different areas and adjust the gas flow direction, flow speed, and flow smoothness to meet the actual needs. In this embodiment, the suction holes 140 are elongated slots located at the rear of the housing 100, extending axially and distributed circumferentially. The through holes 131 are circular holes located in the suction cover 130 and distributed approximately uniformly. The blowing holes 210 are an array of long grooves located in the rod body 201, extending axially and distributed circumferentially.

[0041] The ventilation passages connecting the through-holes 131, the inlet holes 140, and the outlet holes 210 allow air to circulate inside the photothermal hair care device, lowering the temperature of the hair as needed. As shown in Figure 22, the air flows in the direction of the arrow. A fan 600 installed in the housing 102 and electrically connected to the circuit motherboard 400 accelerates the gas flow, heating and curling the hair, followed by rapid cooling to set it. The air is blown in a 360-degree direction around the rod body 201, providing uniform and effective airflow, as shown in the schematic diagram of the airflow angle in Figure 24.

[0042] 26 and 27, in Example 11, the rod body 202 of the photothermal hair care device is detachably connected to the main body 110 of the housing 102, and the rod body 202 is provided with an outlet hole 212 that penetrates the side wall of the rod body 202 and communicates with the inlet hole 140 to form an air passage. The air passage allows air inside the photothermal hair care device to circulate. That is, it can dissipate heat from internal components and lower the temperature of hair as needed.

[0043] The direction in which the outlet holes 212 penetrate the side wall of the rod body 202 forms a certain angle with the radial direction of the rod body 202. As shown in FIG. 27, the angle is 0 to 90° or 0 to -90°. Generally, the angle between the penetration direction and the radial direction of the rod body is selected in the range of 10 to 70° or 0 to -70° and can be designed according to actual needs. A preferred angle is 15 to 60°. The penetration angle is the outlet angle. The discharged cold air can cool the hair wrapped around the outer periphery of the rod body 202. By selecting the angle of 15 to 60°, the air can be blown evenly onto the hair wrapped around the surface of the rod body without slowing down, thereby efficiently and uniformly cooling the hair. The direction in which the blowing holes 212 penetrate the side wall of the rod body 202 may be a tangential direction to the inner wall of the rod body 202, the blowing holes 212 extend in the axial direction, and the plurality of blowing holes 212 are arranged in an array in the circumferential direction. As can be seen from the blowing schematic diagram shown in Figure 27, the direction in which the blowing holes 212 penetrate the side wall of the rod body 202 is shifted clockwise with respect to the radial direction, and the blowing holes 212 create a blowing effect that rotates clockwise.

[0044] 28 and 29, in Example 12, the rod body 203 of the photothermal hair care device is detachably connected to the main body 110 of the housing 102, and the rod body 203 is provided with outlet holes 213, which penetrate the side wall of the rod body 203, and the direction in which the outlet holes 213 penetrate the side wall of the rod body 203 forms a certain angle with the radial direction of the rod body 203. This example differs from Example 11 in that the direction in which the outlet holes 213 penetrate the side wall of the rod body 203 is opposite to that of Example 11, and the direction in which the outlet holes 213 penetrate the side wall of the rod body 203 is offset counterclockwise from the radial direction. The outlet holes 213 create a counterclockwise rotating blowing effect, as shown in FIG. 29.

[0045] 30 to 34 are schematic diagrams related to Examples 13 and 14. The rod body 204 of the photothermal hair care device of Example 13 is fixedly or detachably connected to the main body 110 of the housing 102, and a single-electrode lamp tube 301 is used as the light source. The rod body 204 is provided with outlet holes 214, which penetrate the side wall of the rod body 204, and the penetration direction of the outlet holes 214 through the side wall of the rod body 204 forms a certain angle with the radial direction of the rod body 204, and the direction in which the outlet holes 214 extend in the longitudinal direction of the rod body forms an angle with the axis of the rod body 204, and the included angle between the direction in which the outlet holes extend in the longitudinal direction of the rod body and the axis of the rod body is 0° to 70° or 0° to -70°. In addition, the blowing holes 214 may be linear grooves or arc-shaped grooves, and the arrangement manner in which the plurality of blowing holes 214 appear on the outer surface of the rod body after penetrating the rod body 204 may be an inclined linear array, an arc array, or a spiral array, and the direction in which the blowing holes 214 penetrate the side wall of the rod body 204 is shifted clockwise relative to the radial direction, so that the blowing holes 214 form a clockwise rotating blowing effect.

[0046] 33 and 34, the rod body 205 of the photothermal hair care device of Example 14 is fixedly connected to the main body 110 of the housing 102, and the extending direction of the outlet holes 215 forms an angle with the axial direction of the rod body 205. Example 14 differs from Example 13 in that the angle formed between the extending direction of the outlet holes 215 and the axial direction of the rod body 205 is opposite to that of Example 13, and the direction in which the outlet holes 215 penetrate the side wall of the rod body 205 is offset counterclockwise with respect to the radial direction. The outlet holes 215 create a counterclockwise rotating blowing effect.

[0047] The photothermal hair care device of the present invention heats and curls the hair, and then cools it down in conjunction with the cooling ventilation design. The combination of rapid heating and rapid cooling can achieve a rapid temperature difference.

[0048] In some embodiments, a filter element is installed before the light source emits light, or a filter film is coated on the surface of the lamp tube 300, or the inner surface of the tube body, or the outer surface of the tube body, or a filter film is installed between the tube body and the light source, or a filterable crystal is used on the tube body. By using the photothermal hair care device of the present application, it is possible to perform physical therapy on the hair / scalp using light waves of different wavelength bands, which can be achieved by replacing a light source that can emit light of different wavelength bands, or by selecting light by filtering with a filter element before the light source emits light, or by selecting a required single wavelength band (e.g., 900 to 1800 nm, 380 to 450 nm, or 600 to 750 nm) by coating the surface of the lamp tube 300, or by coating with a multi-wavelength band film. That is, two or more light wave ranges (e.g., 380-450 nm + 900-1800 nm) can be selected, and films of different wavelength bands can be coated on different surfaces of the lamp tube 300 in different directions, or on different positions along the axial direction of the lamp tube 300. Alternatively, a coating can be applied to the tube body, or a filter-capable crystal can be selected as the tube body. A single wavelength band (e.g., 900-1800 nm, 380-450 nm, or 600-750 nm) can be selected, or two or more light wave ranges can be selected and coated with a multi-wavelength band film (e.g., 380-450 nm + 900-1800 nm). Light waves of different wavelength ranges have different phototherapeutic effects on the hair / scalp. For example, selecting the near-infrared wavelength range of 900-2500 nm can promote blood circulation in the head. The device uses red light waves of 600-750nm to regulate biochemical enzymes in the human scalp and hair follicles, such as 5-a reductase, which affects male pattern baldness, and tyrosinase, which affects gray hair. Protein is the main component of hair, and red light enhances the synthesis of ribonucleic acid in human tissue cells, thereby enhancing protein synthesis, which is beneficial for hair growth and increasing hair density and elasticity. The device uses light waves of 420nm to inhibit the growth of Malassezia and improve folliculitis.

[0049] The photothermal hair care device of the present application uses the photothermal effect method, utilizing the thermal energy of light and the heating method of spatial radiation to solve the problems of intermediate medium conduction and conduction efficiency, rapidly and instantly heats the hair, achieving curl / straight hair care effects, and at the same time utilizing the effect of a life light source to support hair care and physical therapy, and the hair will not easily be burned even when heated by the light source.

[0050] It can also be combined with a cooling effect. After heating and curling with the photothermal hair care device, when the blow mode is turned on, the blow assembly circulates air through the ventilation duct, and by blowing cool air onto the hair, the temperature of the hair can be quickly lowered. This creates a rapid temperature change from high to low in the curled hair, which is advantageous for hair styling.

[0051] Different wavelengths of light have different phototherapeutic effects on hair and scalp. For example, near-infrared wavelengths of 900-2500nm can be selected to promote blood circulation in the scalp. Red light of 600-750nm regulates biochemical enzymes in the human scalp and hair follicles, such as 5-a-reductase, which affects male pattern baldness, and tyrosinase, which affects gray hair. Protein is the main component of hair, and red light enhances the synthesis of ribonucleic acid in human tissue cells, thereby enhancing protein synthesis, favoring hair growth and increasing hair density and elasticity. 420nm light inhibits the growth of Malassezia and improves folliculitis.

[0052] The above is only a preferred embodiment of the present application, and the protection scope of the present application is not limited thereto. Any equivalent transformation based on the technical solutions of the present application also falls within the protection scope of the present application.

Claims

1. A photothermal hair care device comprising a rod body, a light source assembly, and a power supply assembly, wherein the light source assembly is installed within the rod body and electrically connected to the power supply assembly, the light source assembly comprises a light source, and light emitted from the light source can be emitted from the rod body.

2. 2. The photothermal hair care device according to claim 1, wherein the rod body is made of a light-transmitting material.

3. 3. The photothermal hair care device according to claim 2, wherein the rod body is a light-transmitting crystal made of any one of sapphire, quartz, and borosilicate.

4. The photothermal hair care device according to claim 1, wherein the rod body is provided with a light-transmitting hole.

5. The photothermal hair care device according to claim 1 , wherein the rod body has a receiving chamber, the light source assembly is installed in the receiving chamber, and is electrically connected to the power supply assembly.

6. The photothermal hair care device according to claim 1, further comprising a housing, wherein the power supply assembly is installed in the housing, and the rod body is fixedly or detachably attached to the housing.

7. The photothermal hair care device according to claim 6, wherein the housing includes a main body and a suction part, and the suction part is provided with a suction hole.

8. The photothermal hair care device according to claim 7, wherein an inlet cover is fitted on the outside of the inlet, and the inlet cover has a through hole communicating with the inlet hole.

9. 9. The photothermal hair care device according to claim 7, wherein the rod body is provided with an outlet hole, the outlet hole communicates with the intake hole to form an air passage.

10. The photothermal hair care device according to claim 9, further comprising a blower assembly connected to the power supply assembly, the blower assembly being disposed in the air passage.

11. The photothermal hair care device according to claim 9, wherein the outlet holes penetrate the side wall of the rod body, and the penetration direction is in the radial direction of the rod body, or the penetration direction forms an included angle with the radial direction of the rod body.

12. The photothermal hair care device according to claim 9, wherein the outlet holes penetrate the side wall of the rod body, and the angle between the penetration direction and the radial direction of the rod body is 0° to 90° or 0° to -90°.

13. The photothermal hair care device according to claim 12, wherein the angle between the penetration direction and the radial direction of the rod body is 10° to 70° or 0° to −70°.

14. The photothermal hair care device according to claim 9, wherein the outlet holes penetrate the sidewall of the rod body, the outlet holes extend in the longitudinal direction of the rod body, and the extension direction intersects with the axis of the rod body.

15. The photothermal hair care device according to claim 14, wherein the angle between the direction in which the outlet holes extend in the vertical direction of the rod body and the axis of the rod body is 0° to 70° or 0° to -70°.

16. The photothermal hair care device according to claim 1, further comprising a filter element disposed between the light source and the rod body.

17. 2. The photothermal hair care device according to claim 1, wherein the light source is a lamp tube, and a filter film is coated on the surface of the lamp tube or on the rod body.

18. 2. The photothermal hair care device according to claim 1, wherein the rod body is made of a filterable crystal.

19. 2. The photothermal hair care device according to claim 1, wherein the light source is a double-electrode lamp tube or a single-electrode lamp tube.

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