Photo-thermal hairdressing device

Abstract

The photo-thermal type hairdressing device comprises an upper shell part and a lower shell part which are hinged to each other, and further comprises a control circuit board, a key module and a power source assembly. The upper shell part and the lower shell part rotate around a hinge center to realize opening and closing actions, a clamping plate structure for clamping hair is formed in a closed state, and the hair is convenient to place or take out in an open state; the photo-thermal type hairdressing device further comprises a light source assembly. The light source assembly, the key module and the power source assembly are electrically connected with the control circuit board. The light source assembly is a photo-thermal device and is arranged in the lower shell part; the photo-thermal device comprises a light source, light radiated by the light source is emitted from the top face of the lower shell part and directly irradiates hair and scalp, meanwhile, based on the photo-thermal effect, heat energy of the light source acts on the hair, and the hair is rapidly heated through heat transfer of light energy and photo-thermal; the photo-thermal hairdressing device is a hair straightener or a hair curler; the power supply assembly comprises a battery and / or a power line, and the power line is used for being connected with an external power supply.

Description

Technical Field

[0001] The present application relates to the field of hairdressing, and in particular to a photothermal hairdressing device. Background Art

[0002] Curling irons and straightening irons currently on the market generally use PTC and MCH heating methods (PTC and MCH are both ceramic heating methods, which are the commonly used heating methods for curling and straightening irons) to curl or straighten hair. This heating method heats the aluminum rod or aluminum sheet and then transfers the heat to the hair, causing the hair to deform after reaching a certain temperature. During the heating process, the heat from the metal material is directly transferred to the hair, and the hair is heated to a high temperature that is difficult to control. During the heating process, the hair is in a heated state for a long time, which causes serious damage to the hair cuticle and medulla. The continuous heating process causes a lot of moisture evaporation in the hair, seriously affecting the hair quality and gloss. Summary of the Invention

[0003] The technical problem to be solved by the present application is to provide a photothermal hairdressing device to solve the problem that existing hairdressing devices cause great damage to hair.

[0004] To solve the above technical problems, this application adopts the following technical solutions: A photothermal hairdressing device comprises an upper shell and a lower shell hinged to each other, as well as a control circuit board, a key module, and a power supply assembly. The upper shell and the lower shell rotate about a hinge center to open and close, forming a clamping structure for clamping hair in the closed state, and facilitating the placement or removal of hair in the open state. The photothermal hairdressing device is characterized in that: the photothermal hairdressing device also includes a light source assembly, wherein the light source assembly, the key module, and the power supply assembly are electrically connected to the control circuit board; the light source assembly is a photothermal device and is disposed within the lower shell; the photothermal device includes a light source, and light radiated from the light source is emitted from the top surface of the lower shell to directly illuminate the hair and scalp. Simultaneously, due to the photothermal effect, heat energy from the light source acts on the hair, rapidly heating the hair by heat transfer between light energy and photothermal heat; the photothermal hairdressing device is a hair straightener or a hair curler; the power supply assembly includes a battery and / or a power cord, wherein the power cord is connected to an external power source.

[0005] In some embodiments, a accommodating cavity is formed inside the lower shell, and the photothermal device is installed in the accommodating cavity; the top of the accommodating cavity is the top surface of the lower shell, and a light-transmitting panel is provided; the light source is installed behind the light-transmitting panel; the light-transmitting panel is the working position of the lower shell; a heat-conducting plate is provided at the working position of the upper shell corresponding to the working position of the lower shell; the hair is clamped between the light-transmitting panel and the heat-conducting plate; the light radiated by the light source is emitted from the light-transmitting panel to illuminate the heat-conducting plate, and the heat energy of the light source causes the light-transmitting panel and the heat-conducting plate to heat up to form a heating plate, thereby heating the hair clamped between the heat-conducting plate and the light-transmitting panel.

[0006] In some embodiments, a reflective cover is provided outside the light source, which surrounds the lower side of the light source. The upper side of the reflective cover is not closed but forms an opening, and the two side edges of the opening abut against the light-transmitting panel; the reflective cover reflects the light radiated downward by the light source and transmits it upward through the light-transmitting panel.

[0007] In some embodiments, the light source is any one of a halogen lamp, a carbon filament lamp, a tungsten filament lamp, and an incandescent lamp.

[0008] In some embodiments, by selecting a light source with a predetermined wavelength band, or by providing a filter element outside the light source, the light radiated by the light source has a single wavelength band or multiple wavelength bands in the near-infrared band of 900-2500nm, 380-450nm, or 600-750nm to act on the hair and scalp.

[0009] In some embodiments, the filter element is in the form of a filter or a filter film, and the filter unit is configured as: Coating a filter film on the outer or inner surface of the light source tube; or A filter is provided between the tube body of the light source lamp and the filament of the light source; or The tube body of the light source lamp adopts a filterable crystal; or Disposing a filter between the light source and the light-transmitting panel; or A filter is attached or a filter film is plated on the upper surface or the lower surface of the light-transmitting panel.

[0010] In some embodiments, a filtering device with switchable filtering bands is provided in the lower shell; the filtering device with switchable filtering bands is configured to be manually or electrically operated to switch different filters or switch different filtering areas of the filter film; the filtering device with switchable filtering bands is configured to replace different filters in a plug-in manner, an opening is provided in the lower shell, and the filter is inserted or removed from the opening, and the inserted filter is located between the light source and the translucent panel, and different filters can be replaced by plugging and removing from the opening.

[0011] In some embodiments, the light source adopts a double-ended electrode point lamp tube or a single-ended electrode point lamp tube. The positive and negative electrodes of the double-ended electrode point lamp tube are respectively located on both sides of the lamp tube, and the positive or negative electrode on one side is electrically connected through a conductive sheet and extended to the other side, so that the positive and negative electrodes of the lamp tube are both electrically connected to the control circuit board by a power terminal on the same side of the lamp tube; the conductive sheet includes outer coils respectively arranged outside the two ends of the lamp tube, one of the outer coils is electrically connected to one of the positive and negative electrodes on one side, and the conductive sheet also includes a straight conductor connecting the two outer coils, so that the conductive sheet leads one of the positive and negative electrodes of the lamp tube from one side of the lamp tube to the other side. The positive and negative electrodes of the single-ended electrode point lamp tube are on the same side of the lamp tube and are electrically connected to the control circuit board through the power terminal.

[0012] In some embodiments, the power terminals are fixed in the lower shell portion via a light source fixing plate.

[0013] In some embodiments, the light-transmitting panel is made of a transparent crystal of any one of sapphire, quartz, and borosilicate.

[0014] In some embodiments, the upper shell and the lower shell include a hinged end and a free end; the hinged end rotatably connects the upper shell and the lower shell through a hinge center; the free ends of the upper shell and the lower shell can open or close relative to each other; and the hinge center is a hinge axis or a hinge center point.

[0015] In some embodiments, the end surface of the hinged end of the upper shell forms an upward inclined surface, and the end surface of the hinged end of the lower shell forms a downward inclined surface, so that the upper shell and the lower shell form an angle at the hinged end; the space at the angle is used to install the hinge assembly and the movement space for the upper shell and the lower shell at the hinged end; the hinge assembly includes a hinge shaft and axial holes corresponding to the hinged ends of the upper shell and the lower shell, and the hinge shaft is inserted into the axial hole for rotational engagement.

[0016] In some embodiments, the upper shell portion includes an upper shell, the heat conduction plate and an upper shell inner cover, and the upper shell inner cover is buckled on the bottom of the upper shell; the upper shell forms an upward inclined surface on the end surface of the hinge end and is provided with a shaft sleeve, and the shaft sleeve is formed in the shaft sleeve to form the through shaft hole; the upper shell inner cover forms an upturned end at the hinge end, the upturned end has an inclined surface and is provided with a through hole; the upturned end of the upper shell inner cover is adapted to the upward inclined surface formed on the hinge end of the upper shell; the shaft sleeve of the upper shell at the hinge end protrudes downward through the through hole of the upturned end of the upper shell inner cover; the upper shell inner cover is provided with a window, the window is a through hole, and the heat conduction plate is installed on the window.

[0017] In some embodiments, the lower shell portion includes a lower shell and a lower shell inner cover that are interlocked with each other, and the accommodating cavity is defined internally; the lower shell is provided with an axle seat at the hinge end, and the axle seat forms a cavity for accommodating and installing the axle sleeve of the upper shell portion, and an axle hole is provided on each side of the axle seat cavity to form a pair of axle holes, and the axle sleeve of the upper shell portion is located between the axle holes, and the axle holes are aligned and connected with the axle holes of the axle sleeves, and a hinge is formed by inserting the hinge shaft into the aligned axle holes; the lower shell forms a downward inclined surface at the end face of the hinge end, and the axle seat is provided in the downward inclined surface; the lower shell inner cover forms a downwardly tilted end at the hinge end, and the downwardly tilted end has an inclined surface and is provided with an opening; at the hinge end, the downwardly tilted end of the lower shell inner cover is adapted to the downwardly tilted surface of the lower shell, and the axle seat at the end of the lower shell protrudes upward through the opening of the downwardly tilted end of the lower shell inner cover; the lower shell inner cover is provided with a window, which is a through hole, and the light-transmitting panel is installed in the window.

[0018] In some embodiments, the lower shell has an upper opening, and the lower shell inner cover is fitted over the upper opening, with the edges fitting together to form a slot that fits tightly against the flange. The upper shell has a lower opening, and the upper shell inner cover is fitted over the lower opening, with the edges fitting together to form a slot that fits tightly against the flange.

[0019] In other embodiments, the present application provides a photothermal hairdressing device, which includes a rod body, a light source assembly, and a power supply assembly. The light source assembly is arranged in the rod body and electrically connected to the power supply assembly. The light source assembly includes a light source, and the light emitted by the light source can be emitted from the rod body.

[0020] This application adopts the photothermal effect, using the thermal energy of light and spatial radiation to eliminate the problems of conduction and conduction efficiency of the intermediate medium, so that the hair is quickly and instantly heated to achieve a curly / straight hairdressing effect; at the same time, the effect of the life light source is used to assist hairdressing and physical therapy; the light source heating is not easy to burn the hair.

[0021] In some embodiments, the rod is made of a light-transmitting material. In some specific embodiments, the rod is a light-transmitting crystal, such as a transparent or translucent crystal. In some specific embodiments, the light-transmitting crystal can be made of glass made of sapphire, quartz, borosilicate, or any other material, which is both light-transmitting and heat-conducting. In other embodiments, the rod can also be light-transmitting by providing light-transmitting holes in the sidewalls.

[0022] In a specific embodiment, a receiving cavity is defined in the rod body, and the light source assembly is disposed in the receiving cavity and is electrically connected to the power supply assembly.

[0023] In some embodiments, the photothermal hairdressing device further comprises a housing, the power supply assembly is disposed within the housing, the rod is fixedly or detachably mounted to the housing, and the housing can also serve as a grip for a user to hold the hairdressing device.

[0024] In some embodiments, the housing includes a main body and an air inlet portion, the air inlet portion having an air inlet hole. In some embodiments, the rod body is provided with an air outlet hole, the air outlet hole communicating with the air inlet hole to form a ventilation path. This ventilation path allows air to circulate within the photothermal hairdressing device, dissipating heat from internal components and lowering hair temperature when necessary. The air inlet portion provided with the air inlet hole can be located at the rear or end of the housing. The air outlet hole can also serve as a light-transmitting hole, allowing light to pass through.

[0025] In some embodiments, the air inlet portion is provided with an air inlet cover on its outer cover, and the air inlet cover is provided with a through hole communicating with the air inlet hole. The air inlet cover can play a role in dust prevention.

[0026] In some embodiments, the photothermal hairdressing device further includes a blower assembly connected to the power supply assembly, the blower assembly being disposed within the ventilation path. After the photothermal hairdressing device heats and curls the hair, the blower mode is activated. The blower assembly drives air through the ventilation path and blows cool air toward the hair, rapidly lowering the hair temperature and creating a rapid temperature difference between hot and cold in the curled hair, thereby facilitating hair styling. The blower assembly can be a blower or fan.

[0027] In some embodiments, the air outlet holes penetrate the side wall of the rod, and the angle between the penetration direction and the radial direction of the rod is 0° to 90° or 0° to -90°. When multiple air outlet holes are provided on the rod, they can form a clockwise or counterclockwise rotation of the air outlet. In some specific embodiments, the angle between the penetration direction and the radial direction of the rod is 10° to 70° or 0° to -70°.

[0028] In some embodiments, the air outlet hole extends through the side wall of the rod body and extends longitudinally along the rod body, with the extension direction intersecting the rod body axis. In some specific embodiments, the angle between the direction in which the air outlet hole extends longitudinally along the rod body and the rod body axis is 0° to 70° or 0° to -70°.

[0029] The photothermal hairdressing device of the present application heats the curled hair and then cools it down with a cooling and ventilation design. The combination of rapid heating and rapid cooling can achieve rapid temperature difference styling.

[0030] In some embodiments, a filter element is provided before the light source emits light. Specifically, a filter element may be provided between the light source and the rod body, or a film may be coated on the light source. In the specific embodiment, the light source is a lamp tube, and a filter film is coated on the surface of the lamp tube; or a filter film may be coated on the rod body, and the film may be coated on the inner or outer surface of the rod; or the rod body is provided with a filter crystal. The photothermal hairdressing device of the present application can also utilize light waves of different wavelengths for hair / scalp therapy. The realization of different wavelengths can be achieved by replacing a light source that can emit different wavelengths, or by filtering and selecting light through a filter element before the light source emits light, or by coating the surface of the lamp tube to select a desired single wavelength (such as 900-1800nm ​​or 380-450nm or 600-750nm), or by coating a multi-band method: selecting two or more wavelength intervals (such as 3 80-450nm+900-1800nm), different wavelength bands of films are plated on the surface of the lamp in different directions, or different wavelength bands of films are plated on the surface at different positions along the axis of the lamp; or the film is plated on the tube body, or a filter crystal is selected as the tube body, and the required single band (such as 900-1800nm ​​or 380-450nm or 600-750nm) can be selected, or multi-band film can be plated in two or more light wavelength intervals (such as 380-450nm+900-1800nm). Light waves of different wavelengths have different phototherapy effects on the hair / scalp. For example, the near-infrared band of 900-2500nm can stimulate blood circulation in the head; red light of 600-750nm is used to regulate biochemical enzymes in the human scalp and hair follicles, such as 5-a reductase that affects male pattern baldness and tyrosinase that affects gray hair; protein is the main component of hair. Through red light, the synthesis of ribonucleic acid in human tissue cells is enhanced, thereby enhancing protein synthesis, which is beneficial to hair growth and increases hair density and elasticity; 420nm light waves are used to inhibit the growth of Malassezia and improve folliculitis.

[0031] In some embodiments, the rod body is specifically a columnar body with a accommodating cavity therein, or the rod body is a columnar body with a middle portion passing through both ends, the accommodating cavity is the space in the middle portion, and the two ends pass through to facilitate air flow.

[0032] In some embodiments, the power supply assembly includes a circuit board, conductive female terminals, and a power cord. The power cord allows for connection to an external power source, which is then connected to the circuit board via the conductive female terminals. The power supply assembly also includes a key circuit board and a key. The key circuit board is electrically connected to the circuit board. The key is mounted on the housing via a key seat provided on the housing and engages with the key circuit board. In other embodiments, the photothermal hairdressing device can also be powered by a primary or secondary battery.

[0033] In some embodiments, the light source is a double-ended electrode-lit lamp or a single-ended electrode-lit lamp. Specifically, the light source is a halogen lamp, a carbon filament lamp, a tungsten filament lamp, or an incandescent lamp.

[0034] In some embodiments, the light source includes a lamp tube and a conductive sheet, wherein the positive or negative electrical terminal of the lamp tube is electrically connected via the conductive sheet, and both the positive and negative electrical 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 coil surrounding the lamp tube and electrically connected to one of the positive and negative electrodes, and a straight conductor connected to the outer coil, so that the conductive sheet guides one of the positive and negative electrodes of the lamp tube from one side of the lamp tube to the other, facilitating electrical connection of both electrodes to the circuit board 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.

[0035] The photothermal hairdressing device of the present application adopts the photothermal effect, utilizing the thermal energy of light and spatial radiation to eliminate the problems of conduction and conduction efficiency of the intermediate medium, so that the hair is quickly and instantly heated to achieve the curly / straightening effect of hairdressing; at the same time, the effect of the living light source is utilized to assist in hairdressing and physical therapy; and the heating by the light source is not likely to burn the hair.

[0036] Using light source for heating, direct light radiation / irradiation heating can be performed at a 360-degree angle. The heat transfer of light energy and the speed of light can be used to quickly heat the hair. The 360-degree synchronous heating makes the hair heat faster and more evenly, shortens the heating time, and effectively reduces the damage to the hair medulla caused by continuous heating.

[0037] In addition, the cooling effect can be combined. After using the photothermal hairdressing device to heat the curled hair, the blowing mode is turned on. The blowing component drives the air to circulate in the ventilation path and blows cold air toward the hair, which can quickly lower the temperature of the hair and cause the curled hair to produce a rapid temperature difference from hot to cold, which is beneficial for hair styling.

[0038] Light waves of different wavelengths have different phototherapy effects on the hair / scalp. For example, the near-infrared band of 900-2500nm can stimulate blood circulation in the head; red light of 600-750nm is used to regulate biochemical enzymes in the human scalp and hair follicles, such as 5-a reductase that affects male pattern baldness and tyrosinase that affects gray hair; protein is the main component of hair. Through red light, the synthesis of ribonucleic acid in human tissue cells is enhanced, thereby enhancing protein synthesis, which is beneficial to hair growth and increases hair density and elasticity; 420nm light waves are used to inhibit the growth of Malassezia and improve folliculitis.

[0039] The beneficial effects of this application are: This application adopts the photothermal effect, using the thermal energy of light and spatial radiation to eliminate the problems of conduction and conduction efficiency of the intermediate medium, so that the hair is quickly and instantly heated to achieve a curly / straight hairdressing effect; at the same time, the effect of the life light source is used to assist hairdressing and physical therapy; the light source heating is not easy to burn the hair. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Figure 1 This is a three-dimensional schematic diagram of a photothermal hairdressing device according to a first embodiment of the present application; Figure 2 This is an exploded schematic diagram of a photothermal hairdressing device according to a first embodiment of the present application; Figure 3 This is a cross-sectional view of a photothermal hairdressing device according to Example 1 of the present application; Figure 4 Schematic diagram of a double-headed electrode point light source of the photothermal hairdressing device of this application; Figure 5 Schematic diagram of a single-head electrode point light source of the photothermal hairdressing device of this application; Figure 6 This is an exploded schematic diagram of a photothermal hairdressing device according to the second embodiment of the present application; Figure 7 A schematic cross-sectional view showing the positional relationship between the light source and the rod of the photothermal hairdressing device of the present application; Figure 8 for Figure 7 Schematic diagram of the light source in the AA direction section; Figure 9 This is a three-dimensional schematic diagram of a photothermal hairdressing device according to the third embodiment of the present application; Figure 10 This is an exploded schematic diagram of a photothermal hairdressing device according to the third embodiment of the present application; Figure 11 This is a three-dimensional schematic diagram of a photothermal hairdressing device according to the fourth embodiment of the present application; Figure 12 This is an exploded schematic diagram of a photothermal hairdressing device according to the fourth embodiment of the present application; Figure 13 This is a cross-sectional view of a photothermal hairdressing device according to the fourth embodiment of the present application; Figure 14 This is an exploded schematic diagram of a light-heat hairdressing device according to a fifth embodiment of the present application; Figure 15 This is a three-dimensional schematic diagram of a photothermal hairdressing device according to a sixth embodiment of the present application; Figure 16 This is a schematic diagram of the disassembly and assembly of the light-thermal hairdressing device according to the seventh embodiment of the present application; Figure 17 This is an exploded schematic diagram of a photothermal hairdressing device according to an eighth embodiment of the present application; Figure 18 This is a cross-sectional view of a photothermal hairdressing device according to the eighth embodiment of the present application; Figure 19 This is a cross-sectional view of a photothermal hairdressing device according to a ninth embodiment of the present application; Figure 20 This is a three-dimensional schematic diagram of a photothermal hairdressing device according to a tenth embodiment of the present application; Figure 21 This is an exploded schematic diagram of a photothermal hairdressing device according to a tenth embodiment of the present application; Figure 22 This is a cross-sectional view of a photothermal hairdressing device according to a tenth embodiment of the present application; Figure 23 This is a schematic diagram of the assembly of the photothermal hairdressing device in a detachable manner according to the tenth embodiment of the present application; Figure 24 for Figure 23 A transverse cross-sectional air outlet diagram of an embodiment; Figure 25 This is a schematic diagram of an embodiment of replacing a light source in a photothermal hairdressing device according to the tenth embodiment of the present application; Figure 26 This is a schematic diagram of the disassembly and assembly of the photothermal hairdressing device according to the eleventh embodiment of the present application; Figure 27 This is a horizontal cross-sectional view of the air outlet of the photothermal hairdressing device according to the eleventh embodiment of the present application; Figure 28 This is a schematic diagram of the disassembly and assembly of the photothermal hairdressing device according to the twelfth embodiment of the present application; Figure 29 This is a horizontal cross-sectional view of the air outlet of the photothermal hairdressing device according to the twelfth embodiment of the present application; Figure 30 This is a three-dimensional schematic diagram of a photothermal hairdressing device according to a thirteenth embodiment of the present application; Figure 31 This is an exploded schematic diagram of a photothermal hairdressing device according to a thirteenth embodiment of the present application; Figure 32 This is a schematic diagram of the disassembly and assembly of the photothermal hairdressing device according to the thirteenth embodiment of the present application; Figure 33 This is an exploded schematic diagram of a photothermal hairdressing device according to a fourteenth embodiment of the present application; Figure 34 This is a horizontal cross-sectional view of the air outlet of a photothermal hairdressing device according to the fourteenth embodiment of the present application; Figure 35 This is a three-dimensional diagram of the closed state of the photothermal hairdressing device according to the fifteenth embodiment of the present application.

[0041] Figure 36 This is a cross-sectional view of the closed state of the photothermal hairdressing device according to the fifteenth embodiment of the present application.

[0042] Figure 37 This is a three-dimensional diagram of the photothermal hairdressing device in the unfolded state according to the fifteenth embodiment of the present application.

[0043] Figure 38 This is a cross-sectional view of the light-heat hairdressing device in the unscrewed state according to the fifteenth embodiment of the present application.

[0044] Figure 39 This is an exploded view of the photothermal hairdressing device according to the fifteenth embodiment of the present application.

[0045] Figure 40 This is a cross-sectional view of the photothermal hairdressing device in the closed state in another direction according to the fifteenth embodiment of the present application.

[0046] Figure 41 This is an exploded view of the photothermal hairdressing device according to the sixteenth embodiment of the present application. DETAILED DESCRIPTION

[0047] The terms "first", "second", "third", "left", "right", "upper", "lower" and so on in this application do not limit the characteristics of the technical solution of this application, but are only used to distinguish the components for description.

[0048] See also Figures 1-3 Schematic diagram of one embodiment of a photothermal hairdressing device of the present application. The device comprises a housing 100, a wand 200, a light source assembly, and a power supply assembly. The power supply assembly comprises a circuit board 400 disposed within the housing 100, as well as conductive female terminals 410 and a power cord 420 electrically connected to the circuit board 400. External power can be connected via the power cord 420, and external power is connected to the circuit board 400 via the conductive female terminals 410. The wand 200 is fixedly or detachably mounted to the housing 100, which also serves as a grip for the user. The wand contains a cavity 220. The light source assembly is disposed within the cavity 220 and electrically connected to the power supply assembly. The light source assembly includes a light source, and light emitted by the light source is emitted from the wand 200. As shown in the first embodiment, the wand 200 is fixedly mounted to the housing 100, with a connecting ring 521 provided at the connection. A front protective cover 510 is provided at the front end of the wand 200.

[0049] The power supply assembly also includes a key circuit board 430 and a key 450. The key circuit board 430 is electrically connected to the main circuit board 400. The key 450 is mounted on the housing 100 via a key seat 440 provided on the housing 100 and cooperates with the key circuit board 430. In some other embodiments, the photothermal hairdressing device may also be powered by a primary battery or a secondary battery.

[0050] This application adopts the photothermal effect, using the thermal energy of light and spatial radiation to eliminate the problems of conduction and conduction efficiency of the intermediate medium, so that the hair is quickly and instantly heated to achieve a curly / straight hairdressing effect; at the same time, the effect of the life light source is used to assist hairdressing and physical therapy; the light source heating is not easy to burn the hair.

[0051] The light source can be any one of a halogen lamp, a carbon filament lamp, a tungsten filament lamp, and an incandescent lamp. Figures 2-4 As shown, the light source adopts a double-headed electrode point lamp tube 300, and its positive and negative power terminals are respectively located on both sides of the lamp tube 300. In this embodiment, the light source assembly also includes a conductive sheet 310. The positive or negative power terminals on one side of the lamp tube 300 are conductively connected through the conductive sheet 310, and then extended to the other side, so that the positive and negative power 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 electric rings 311 respectively arranged outside the two ends of the lamp tube 300, one of the outer electric rings 311 is electrically connected to one of the positive and negative electrodes on one side, and the conductive sheet 310 also includes a straight conductor 312 connecting the two outer electric rings 311, so that the conductive sheet 310 leads one of the positive and negative electrodes of the lamp tube 300 from one side of the lamp tube 300 to the other side, so that both electrodes are electrically connected to the circuit main board 400 on one side of the lamp tube 300. Please refer to Figure 5 In other embodiments, a single-electrode lamp 301 may be used instead, and the positive and negative electrodes of the lamp 301 are electrically connected to the power supply assembly on one side of the lamp 301 through a conductive head 302. Figure 6 In the second embodiment shown, the light source adopts a single-head electrode light tube 301. The light source replacement design can be applied in combination with various embodiments.

[0052] Please refer to Figure 7 and Figure 8 , is a cross-sectional diagram of the positional relationship between the light source and the rod, as well as a transverse cross-sectional diagram of the light output. The figure shows a simplified structure diagram to illustrate the positional relationship and the light output path. In the figure, a is a simplified structure diagram of the rod, b is a simplified structure diagram of the light source, c is the light output direction, and d is the hair wrapped around the rod. Please combine Figures 1 to 6 The rod 200 is a light-transmitting crystal, specifically transparent or translucent crystal, such as sapphire, quartz, or borosilicate glass, to achieve both light transmission and thermal conductivity. The photothermal hairdressing device of this application utilizes a light source for heating. The light-transmitting rod can directly emit light from a 360° angle to heat the hair. This utilizes the energy and speed of light to rapidly heat the hair. The 360° simultaneous heating allows for faster and more uniform heating, shortening heating time while effectively reducing damage to the hair medulla caused by continuous heating. In other embodiments, the rod 200 can also be light-transmitting by providing openings in its sidewalls.

[0053] Please refer to Figure 9 and Figure 10 In the third embodiment of the present invention, the light-heating hairdressing device is shown in FIG. The rod 201 is provided with air outlets 210. These air outlets 210 are interconnected to form a ventilation path, which can provide a certain cooling effect when needed and also serve as a light outlet. This air outlet design can be applied in various embodiments.

[0054] Please refer to Figures 11-13 , the fourth embodiment of the photothermal hairdressing device of the present application is different from the previous embodiments in that the rod body 200 of the photothermal hairdressing device is detachably mounted together with the shell 101, and a connecting seat 530 is provided at one end of the rod body 200 connected to the shell 101, and the connecting seat is provided with an external thread, and the connection with the shell 101 is provided with an internal thread (not marked), and the two are fixed together in cooperation with each other and can be detached. The end of the connecting seat 530 facing the shell 101 is provided with a ventilation hole 532, and the ventilation hole 532 is connected to the accommodating cavity 220 inside the rod body 200. The detachable design is not limited to the threaded connection disassembly method, and can also adopt snap fit, interference fit, slot fit and other detachable fitting methods. The ventilation hole 532 can be as Figure 11 Set multiple as shown, or as Figure 12 The arrangement shown is single, or two, three, or four are provided, without limitation. The ventilation holes 532 connect the accommodating cavity 220 of the rod body 200 with the interior of the housing 101, allowing for continuous air flow throughout the entire photothermal hairdressing device, promoting overall temperature balance. The detachable design can be incorporated into various embodiments.

[0055] Please refer to Figure 14 The fifth embodiment of the photothermal hairdressing device of this application incorporates an air outlet 210 into the rod body 201, combined with a detachable design. This demonstrates the flexible combination of different component designs and their variations. The rod body 201 of the photothermal hairdressing device is detachably mounted to the housing 101. The end of the rod body 202 connected to the housing 101 is provided with a connecting seat 530, which is threadedly connected to the housing 101. The end of the connecting seat 530 facing the housing 101 is provided with an air vent 532.

[0056] Please refer to Figures 15-18 , the relevant schematic diagrams of the sixth, seventh and eighth embodiments of the light-heat hairdressing device of the present application, the main design point of these three embodiments is the design of the air inlet structure. Figures 15-18The housing 102 includes a main body 110 and an air inlet 120, and the air inlet 120 is provided with an air inlet hole 140. The air inlet hole 140 allows outside air to enter the hairdressing device and connect to the rod body 200. The air can be circulated out by providing a through hole 511 connected to the interior of the rod body 200 on the front protective cover 510. Figure 16 and 18 The housing 102 further includes an air inlet cover 130 sleeved outside the air inlet portion 120 , the air inlet cover 130 is provided with a through hole 131 communicating with the air inlet hole 140 , and the air inlet cover 130 can play a role in dust prevention and protection.

[0057] The photothermal hairdressing device further includes a blower assembly connected to the power supply assembly, and the blower assembly is disposed in the ventilation path. After the photothermal hairdressing device is used to heat the curled hair, the blower mode is turned on, and the blower assembly drives air to circulate in the ventilation path and blows cool air toward the hair, which can quickly lower the temperature of the hair and cause a rapid temperature difference between hot and cold in the curled hair, which is beneficial for hair styling. The blower assembly can be a blower or fan 600, such as Figure 17 and 18 shown.

[0058] See also Figure 19 The difference between the ninth embodiment of the photothermal hairdressing device of the present application and the eighth embodiment is that the double-headed electrode lamp tube 300 of the light source is replaced with a single-headed electrode lamp tube 301.

[0059] See also Figures 20 to 34 , Embodiments 10 to 14 of the photothermal hairdressing device of this application, Figures 20-25 This is a schematic diagram of the tenth embodiment and its combination with the aforementioned feature variations. The photothermal hairdressing 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 board 400 disposed in the housing 102, and a conductive female terminal 410 and a power cord 420 electrically connected to the circuit board 400. An external power source can be connected to the circuit board 400 via the power cord 420, and the external power is connected to the circuit board 400 via the conductive female terminal 410. The light source assembly is disposed in the accommodating cavity 220 of the rod body and is electrically connected to the power supply assembly. Figure 21 and 22 The light source of the light source assembly adopts a double-headed electrode point lamp tube 300, which is provided with a conductive sheet 310. The light emitted by the lamp tube can be emitted from the rod body 201, and the emission angle can be around 360 degrees. The light source of the light source assembly can also adopt a single-headed electrode point lamp tube 301, such as Figure 25 shown.

[0060] The rod body 201 is fixedly mounted on the housing 102. Figure 20 、 21 As shown in FIG25 , the rod body 201 is provided with a connecting ring 521 at the connection between the rod body 201 and the housing 102, the front end of the rod body 201 is provided with a front protective cover 510, and the rear end connection is further provided with a rear protective cover 520. Alternatively, the rod body 201 and the housing 102 are detachably mounted together by threaded engagement, as shown in FIG25 . Figure 22 and 23 As shown, the end of the rod 201 that connects to the main body 110 of the housing is provided with a connecting seat 530. The connecting seat 530 has external threads, and the connection with the main body 110 of the housing is provided with internal threads (not shown). The two cooperate to be fixed together and can be removed. The end of the connecting seat 530 facing the housing 102 is provided with a ventilation hole 532. The ventilation hole 532 connects the accommodating cavity 220 and the air outlet 210 inside the rod 201. The rod 201 is connected to the internal space of the housing 102, allowing air to flow.

[0061] The housing 102 includes a main body 110 and an air inlet portion 120. The air inlet portion 120 is provided with an air inlet hole 140. The air inlet hole 140 allows external air to enter the hair styling device and connect to the rod body 201. The housing 102 also includes an air inlet cover 130 that is sleeved outside the air inlet portion 120. The air inlet cover 130 is provided with a through hole 131 that connects to the air inlet hole 140. The air inlet cover 130 can play a dust-proof and protective role.

[0062] The rod body 201 is provided with air outlet holes 210 extending radially through the sidewall of the rod body 201. The air outlet holes 210 connect to the air inlet holes 140 to form a ventilation path. This ventilation path allows air to circulate within the photothermal hairdressing device, dissipating heat from internal components and reducing hair temperature when needed. The air inlet portion 120, located at the air inlet holes 140, is located at the rear of the housing 100 and can be sized to suit specific needs. The shape, distribution pattern, and layout of the air outlet holes 210, air inlet holes 140, and perforations 131 are not limited. They can be circular, square, or other geometrically shaped, slotted, or otherwise evenly distributed, or densely distributed in certain locations. The air flow direction, velocity, and smoothness can be tailored to meet specific air inlet and outlet requirements through design changes in aperture size, distribution density, and shape. In this embodiment, the air inlet hole 140 is a narrow slot extending axially and distributed circumferentially at the rear of the shell 100; the through hole 131 is a circular hole provided on the air inlet cover 130 and is basically evenly distributed; the air outlet hole 210 is an array of long slots extending axially and distributed circumferentially on the rod body 201.

[0063] The ventilation path connecting the through hole 131, the air inlet 140 and the air outlet 210 can allow the air to circulate inside the photothermal hairdressing device, and can reduce the temperature of the hair when needed, such as Figure 22 The air flows in the direction of the arrow. The fan 600 provided in the housing 102 and electrically connected to the circuit board 400 can accelerate the air flow, quickly cool down and shape the hair after heating. The air outlet angle is 360 degrees around the rod 201, and the air outlet is uniform and effective. Figure 24 Schematic diagram of wind outlet angle is shown.

[0064] See also Figure 26 and 27 In the eleventh embodiment, the wand 202 of the photothermal hairdressing device is detachably connected to the main body 110 of the housing 102. An air outlet 212 is provided on the wand 202. The air outlet 212 extends through the sidewall of the wand 202 and connects to the air inlet 140 to form a ventilation path. This ventilation path allows air to circulate within the photothermal hairdressing device, dissipating heat from internal components and lowering the temperature of the hair when needed.

[0065] The direction in which the air outlet 212 penetrates the side wall of the rod body 202 forms a certain angle with the radial direction of the rod body 202, such as Figure 27 As shown, the angle is 0-90° or 0-90°. Generally, the angle between the penetration direction and the radial direction of the rod body is selected from 10-70° or 0-70°. It can be designed according to actual needs. The preferred angle is between 15-60°. The penetration angle is the air outlet angle. The output low-temperature air flow can cool the hair wrapped around the periphery of the rod body 202. The angle selected between 15-60° allows the air to flow evenly through the hair wrapped around the surface of the rod body, and the flow rate is not too slow, which can effectively and evenly cool the hair. The direction in which the air outlet hole 212 penetrates the side wall of the rod body 202 can be tangential to the inner wall of the rod body 202. The air outlet hole 212 extends axially and multiple air outlet holes 212 are arranged in an array along the circumferential direction, such as Figure 27 As can be seen from the wind outlet schematic diagram, the direction of the air outlet holes 212 penetrating the side wall of the rod body 202 is staggered in the clockwise direction relative to the radial direction, and the air outlet holes 212 form a clockwise rotating wind outlet effect.

[0066] See also Figure 28 and 29In the twelfth embodiment, the rod body 203 of the photothermal hairdressing device is detachably connected to the main body 110 of the housing 102. An air outlet 213 is provided on the rod body 203. The air outlet 213 penetrates the side wall of the rod body 203. The direction in which the air outlet 213 penetrates the side wall of the rod body 203 forms a certain angle with the radial direction of the rod body 203. The difference from the aforementioned eleventh embodiment is that the direction in which the air outlet 213 penetrates the side wall of the rod body 203 is opposite to that of the eleventh embodiment. The direction in which the air outlet 213 penetrates the side wall of the rod body 203 is staggered in the counterclockwise direction relative to the radial direction. The air outlet 213 forms a counterclockwise rotating air outlet effect. Figure 29 shown.

[0067] See also Figures 30-34 , which is a schematic diagram related to the thirteenth and fourteenth embodiments, shows that the rod body 204 of the photothermal hairdressing device of the thirteenth embodiment is fixedly or detachably connected to the main body 110 of the housing 102, and the light source is a single-electrode lamp tube 301. The rod body 204 is provided with an air outlet 214, which penetrates the side wall of the rod body 204. The direction of penetration of the air outlet 214 through the side wall of the rod body 204 forms a certain angle with the radial direction of the rod body 204. Furthermore, the direction along which the air outlet 214 extends longitudinally of the rod body forms an angle with the axis of the rod body 204. The angle between the direction along which the air outlet 214 extends longitudinally of the rod body and the axis of the rod body is 0° to 70° or 0° to -70°. In addition, the air outlet holes 214 may be straight grooves or arc-shaped grooves. After the multiple air outlet holes 214 pass through the rod body 204, the arrangement manner presented on the outer peripheral surface of the rod body may be an inclined straight line arrangement array, an arc arrangement array, or a spiral arrangement array. The direction in which the air outlet holes 214 pass through the side wall of the rod body 204 is staggered along the relative radial clockwise direction, and the air outlet holes 214 form a clockwise rotating air outlet effect.

[0068] See also Figure 33 and 34 In the fourteenth embodiment, the rod body 205 of the photothermal hairdressing device is fixedly connected to the main body 110 of the housing 102, and the air outlet holes 215 extend in an angle with the axial direction of the rod body 205. The fourteenth embodiment differs from the thirteenth embodiment in that the angle formed between the extension direction of the air outlet holes 215 and the axial direction of the rod body 205 is opposite to that of the thirteenth embodiment, and the direction in which the air outlet holes 215 penetrate the side wall of the rod body 205 is staggered in a counterclockwise direction relative to the radial direction, so that the air outlet holes 215 form a counterclockwise rotating air outlet effect.

[0069] The photothermal hairdressing device of the present application heats the curled hair and then cools it down with a cooling and ventilation design. The combination of rapid heating and rapid cooling can achieve rapid temperature difference styling.

[0070] In some embodiments, a filter element is provided 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 provided between the tube body and the light source; or the tube body uses a filter crystal. The photothermal hairdressing device of the present application can also use light waves of different bands to perform physical therapy on the hair / scalp. The realization of different bands can be achieved by replacing a light source that can emit different bands, or by filtering and selecting light through a filter element before the light source emits light, or by coating the surface of the lamp tube 300 to select a desired single band (such as 900-1800nm ​​or 380-450nm or 600-750nm), or by coating multiple bands: selecting two or more light wave intervals (such as 380-450nm or 600-750nm). -450nm+900-1800nm), coating films of different wavelength bands on the surface of the lamp tube 300 in different directions, or coating films of different wavelength bands on the surface of different positions along the axial direction of the lamp tube 300; or coating the tube body, or selecting a filter crystal as the tube body, and selecting the required single band (such as 900-1800nm ​​or 380-450nm or 600-750nm), or selecting two or more light wavelength intervals to coat multi-band films (such as 380-450nm+900-1800nm). Light waves of different wavelengths have different phototherapy effects on the hair / scalp. For example, the near-infrared band of 900-2500nm can stimulate blood circulation in the head; red light of 600-750nm is used to regulate biochemical enzymes in the human scalp and hair follicles, such as 5-a reductase that affects male pattern baldness and tyrosinase that affects gray hair; protein is the main component of hair. Through red light, the synthesis of ribonucleic acid in human tissue cells is enhanced, thereby enhancing protein synthesis, which is beneficial to hair growth and increases hair density and elasticity; 420nm light waves are used to inhibit the growth of Malassezia and improve folliculitis.

[0071] The photothermal hairdressing device of the present application adopts the photothermal effect, utilizing the thermal energy of light and spatial radiation to eliminate the problems of conduction and conduction efficiency of the intermediate medium, so that the hair is quickly and instantly heated to achieve the curly / straightening effect of hairdressing; at the same time, the effect of the living light source is utilized to assist in hairdressing and physical therapy; and the heating by the light source is not likely to burn the hair.

[0072] In addition, the cooling effect can be combined. After using the photothermal hairdressing device to heat the curled hair, the blowing mode is turned on. The blowing component drives the air to circulate in the ventilation path and blows cold air toward the hair, which can quickly lower the temperature of the hair and cause the curled hair to produce a rapid temperature difference from hot to cold, which is beneficial for hair styling.

[0073] Light waves of different wavelengths have different phototherapy effects on the hair / scalp. For example, the near-infrared band of 900-2500nm can stimulate blood circulation in the head; red light of 600-750nm is used to regulate biochemical enzymes in the human scalp and hair follicles, such as 5-a reductase that affects male pattern baldness and tyrosinase that affects gray hair; protein is the main component of hair. Through red light, the synthesis of ribonucleic acid in human tissue cells is enhanced, thereby enhancing protein synthesis, which is beneficial to hair growth and increases hair density and elasticity; 420nm light waves are used to inhibit the growth of Malassezia and improve folliculitis.

[0074] See also Figures 35 to 41 A schematic diagram of a photothermal hairdressing device 700 according to the fifteenth embodiment of the present application is provided. This embodiment is a photothermal hair straightener and includes an upper housing 710 and a lower housing 720 that are hingedly connected. The upper housing 710 and the lower housing 720 pivot about a hinge center to open and close. In the closed state, they form a clamping plate structure for holding hair. In the open state, they facilitate placement and removal of hair. A user applies an external force to rotate the upper housing 710 relative to the lower housing 720 about the hinge center. The rotation angle can range from 0° to 180°, and can also be designed to be 360° or any other suitable angle range (e.g., a tax angle). When the angle is 0°, the upper and lower housings are completely closed, with the clamping panels 712 and 733 of the upper and lower housings abutting each other to form a working position for clamping hair. When the upper and lower housings 710 and 720 are rotated by a certain angle, such as 180°, the upper and lower housings are fully open, making it easier for the user to comb hair and place it between the clamping panels.

[0075] The photothermal hairdressing device 700 also includes a control circuit board 740, a photothermal device 730 electrically connected to the control circuit board 740, and a power supply assembly. The photothermal hairdressing device 700 may also be provided with a key module (not shown) electrically connected to the control circuit board 740. The key module is used for power on / off or function selection. These functions can be implemented by configuring corresponding software in a control unit on the main control circuit board or by configuring corresponding functional modules on the control circuit board 740. The software and functional modules are configured using existing technology or by those skilled in the art based on the corresponding functions. The key module may also include an opening / closing trigger key for controlling the opening and closing of the upper and lower shells. Accordingly, the upper and lower shells 710 and 720 are provided with electric devices electrically connected to the control circuit board 740. The electric devices drive the rotation of the upper and lower shells 710 and 720 to achieve the opening and closing movement. Examples of the electric devices include a motor and a screw, a solenoid valve, and the like. The power supply assembly may include a battery 770 and / or a power cord 750. The power cord 750 can be connected to an external power source, allowing the external power source to directly power the photothermal hairdressing device 700 or charge the battery 770, which in turn powers the photothermal hairdressing device 700. The control circuit board 740 is provided with a power module, which is electrically connected to the battery 770 and / or the power cord 750.

[0076] In this embodiment, the light-heat hair straightener 700 is in the form of a long rod, but is not limited to a long rod. The housing 710 and the lower housing 720 are hingedly connected at one end to enable relative rotation, thereby enabling opening and closing. One end of the hair straightener 700 is hinged, serving as a grip for the user to hold the hair straightener, while the other end is free, allowing the upper and lower housings 710 and 720 to open and close.

[0077] The upper shell portion 710 includes an upper shell 711, a heat conducting plate 712, and an upper shell inner cover 713. The upper shell inner cover 713 is snapped onto the bottom of the upper shell 711 to define a cavity 714 within the upper shell portion 710. The bottom side of the upper shell 711 is an open side, forming a cavity 714 facing the interior of the lower shell portion 720. The bottom side edge is adapted to the four edges of the upper shell inner cover 713. The upper shell inner cover 713 covers the bottom opening of the upper shell. The edges are adapted to each other, forming a clamping fit such as a slot and a flange, or a tension fit between the edges, or a snap connection, and can also be fixed by fasteners such as screws. The upper shell 711 forms an upwardly inclined surface 7110 at the hinge end, and a shaft sleeve 7113 is provided at the end. The shaft sleeve 7113 forms a through shaft hole 7112. The upper housing inner cover 713 is flat (but not limited to a flat plate) with an upturned end 7130 formed at the hinge end. This upturned end 7130 has an inclined surface and a central through-hole 7131. At the hinge end, the upturned end 7130 of the upper housing inner cover 713 mates with the upwardly inclined surface 7110 of the upper housing 711, allowing for a tight fit. A sleeve 7113 at the end of the upper housing 711 protrudes downward through the through-hole 7131 at the end of the upper housing inner cover 713. A window 7132 is provided at the working position of the optical thermal hair straightener 700. The heat conducting plate 712 is mounted within the window 7132, forming the upper clamping plate of the working position. The area of ​​the window 7132 can be designed to be as large as possible, depending on the size of the required working position of the optical thermal hair straightener 700. The heat conducting plate 712 is made of a heat-conducting material, such as metal, and covers the working position window 7132. For example, the heat conducting plate 712 is flat, with bent edges (or snaps) 7121 formed at both ends of the flat plate 712, which are opposite to the flat plate. The bent edges 7121 snap onto the edges of the window 7132 and are clamped between the edges of the upper shell 711 and the upper shell inner cover 713. They can be further secured together by fasteners (e.g., screws engaging screw holes). The flat plate body 712 is tightly mounted in the window 7132 and faces the lower shell 720. In this embodiment, the heat conducting plate 712 absorbs light and heat radiated by the light source within the lower shell, raising its temperature to form an upper heating panel, which can continuously heat the hair. It is understood that the heat conducting plate 712 can also be designed as an electric heating plate, electrically connected to the control circuit board 740, and generating heat when current is applied.

[0078] The lower housing 720 contains a chamber 724. The photothermal device 730 and control circuit board 740 are disposed within this chamber 724 and are electrically connected to the power supply assembly. The housing of the lower housing 720 comprises a lower shell 721 and a lower shell inner cover 732 that interlock together, defining the chamber 724. In this embodiment, the upper side of the lower shell 721 (facing the upper housing 710) is open, corresponding to the chamber 724. An annular mounting groove 7215 is formed along the four edges of the upper side of the lower shell 721. The lower shell inner cover 723 is flat (but not limited to a flat plate) and fits within the upper opening of the lower shell. A flange 7235 is formed around the edge of the lower shell inner cover 723. For example, the flange 7235 has an inverted L-shaped (or stepped) cross-section, comprising a horizontal flange around the top of the flat plate and a vertical annular protrusion protruding downward from the bottom. The flange (horizontal flange) 7235 fits snugly within the annular mounting groove on the edge of the lower shell and can be further secured with fasteners such as screws. The downwardly protruding vertical annular protrusion can be used to mount the photothermal device 730 and control circuit board 740. The assembly between the lower shell inner cover 723 and the lower shell 721 can also be achieved through an expansion fit or by providing a snap-fit ​​connection. The lower shell 721 has an axle seat 7210 at the hinged end. This seat forms a cavity for accommodating and mounting the shaft sleeve 7113 of the upper shell 710. A shaft hole 7212 is provided on each side of the axle seat cavity. The pair of shaft holes formed on either side align and communicate with the shaft hole 7112 at the hinged end of the upper shell. The hinge shaft 760 is inserted into the aligned shaft holes 7212 and 7112 to form a hinge. The lower shell 721 has a downwardly inclined surface 7211 at the hinged end, and the axle seat 7210 is disposed within this downwardly inclined surface 7221. The lower shell inner cover 723 has a downwardly tilted end 7230 at the hinged end. This downwardly tilted end 7230 has an inclined surface and an opening 7231. At the hinged end, the downwardly angled end 7230 of the lower shell inner cover 723 mates with the downwardly inclined surface 7211 of the lower shell 721, allowing them to fit snugly against each other. The shaft seat 7210 at the end of the lower shell 721 protrudes upward through the opening 7231 at the end of the lower shell inner cover 723, and the shaft sleeve 7113 at the hinged end of the upper shell is installed between the two shaft holes 7212 of the shaft seat 7210. Corresponding to the working position of the thermal straightener 700, the lower shell inner cover 723 is provided with a window 7232. This window 7232 is a through-hole for mounting the thermal device 730. The size and area of ​​the window 7232 correspond to the position and area of ​​the working position, and correspond to the position and shape of the thermal device's light output panel (lower clamping plate), the heat conduction plate (lower clamping plate) 712 of the upper shell, and the working position window 7132 of the upper shell inner cover.

[0079] The photothermal device 730 includes a light source 731, a reflective device 732, and a light-transmitting panel 733. The light source 731 can be any one of a halogen lamp, a carbon filament lamp, a tungsten filament lamp, and an incandescent lamp. Figures 2-4The double-headed electrode point lamp tube 300 shown in the figure has its positive and negative power terminals respectively located on both sides of the lamp tube 300. The positive or negative power terminals on one side of the lamp tube 300 are conductively connected through a conductive sheet 310 and then extended to the other side, so that the positive and negative power terminals of the lamp tube 300 are both electrically connected to the control circuit board on one side of the lamp tube 300. In a specific embodiment, the conductive sheet 310 includes two outer electric rings 311 respectively arranged outside the two ends of the lamp tube 300, one of the outer electric rings 311 is electrically connected to one of the positive and negative electrodes on one side, and the conductive sheet 310 also includes a straight conductor 312 connecting the two outer electric rings 311, so that the conductive sheet 310 leads one of the positive and negative electrodes of the lamp tube 300 from one side of the lamp tube 300 to the other side, so that both electrodes are electrically connected to the control circuit board 740 on one side of the lamp tube 300. Please refer to Figure 5 In other embodiments, a single-electrode lamp 301 can be used instead. The positive and negative electrodes of the lamp 301 are electrically connected to the control circuit board via conductive contacts (electrical terminals) 302 on one side of the lamp 301. It is understood that the light source 731 can also be a universal lamp such as a halogen lamp, a carbon filament lamp, a tungsten filament lamp, or an incandescent lamp. The light source is provided with positive and negative electrode electrical terminals 7311 on the end facing the control circuit board 740. Electrical connection to the control circuit board 740 is achieved via these terminals, and the light source 731 is turned on and off by an operating button module. The reflector 732 is a reflector with a C-shaped cross-section. It is positioned outside the light source 731 and surrounds the side of the light source 731 facing the lower housing 720, i.e., the lower side. It reflects the light emitted downward from the light source 731 and transmits it upward. The upper open edge of the reflector 732 abuts against the edge of the window 7132 in the lower housing inner cover 723, which fits tightly. The power terminals 7311 of the light source 731 extend from the end of the reflector 732. A light source fixing plate 734 secures the power terminals 7311 to the inner wall of the lower housing 720, maintaining a stable connection between the power terminals 7311 and the control circuit board 740. The light-transmitting panel 733 is made of a transparent, thermally conductive material, such as transparent crystal. It is mounted within the window 7132 of the lower housing inner cover 723, forming the lower clamping panel of the working position. The light-transmitting panel 733 is adapted to the area of ​​the window 7132 and the heat-conducting plate 712 of the upper housing. It is configured to correspond to the size of the desired working position of the light-heat hair straightener 700. The light-transmitting panel 733 covers the window 7232, with the edges of the light-transmitting panel 733 tightly fitting with the edges of the window 7232, for example, forming a snap-fit ​​or expansion fit, such as a flange mating with a slot, or alternatively, a snap-fit ​​connection. The photothermal device 730 is installed in the lower shell cavity 734 corresponding to the working position, and is located at the position corresponding to the window 7232 of the lower shell inner cover 723. The light emitted by the light source 731 generates photothermal energy, that is, light energy and heat energy. The light passes through the light-transmitting panel (transparent crystal) 733, so that the light energy directly acts on the hair through light radiation. Figure 40The light emission direction is indicated by the arrow. The light source 731 emits light, including upward light and downward light. The downward light is reflected by the reflector 732 and then directed upward. Together with the upward light, it is emitted through the light-transmitting panel (transparent crystal) 733 and acts on the hair sandwiched between the transparent crystal 733 and the heat-conducting plate 712 of the upper shell. At the same time, the light energy of the light emitted by the light source 731 is converted into heat energy, which acts on the transparent crystal 733 and the heat-conducting plate 712 of the upper shell opposite to the transparent crystal 733, causing the transparent crystal 733 and the heat-conducting plate 712 of the upper shell to heat up. The transparent crystal 733 and the heat-conducting plate 712 of the upper shell form a heating plate to assist in heating the hair, thereby heating the hair sandwiched between the transparent crystal 733 and the heat-conducting plate 712 of the upper shell.

[0080] The control circuit board 740 is mounted within the lower housing cavity 734. In this embodiment, the control circuit board 740 and the photothermal device 730 are mounted longitudinally within the lower housing cavity 734, with the control circuit board 740 mounted near the hinge end and the photothermal device 730 mounted near the free end. A power cord hole 7215 is provided at the hinge end of the lower housing, through which the power cord 750 passes to electrically connect to the control circuit board 740.

[0081] The upper shell 710 and the lower shell 720 are connected at the hinge end by a hinge shaft 760. As an embodiment, the hinge shaft 760 is a bolt with nuts at both ends. A threaded fit can be formed between the two ends and the nuts. The middle shaft section is an optical axis, which rotates with the shaft holes 7112 and 7212. The nut is larger in diameter than the optical axis and is pressed against the shaft holes 7212 on both sides of the shaft seat 7210 at the connecting end of the lower shell to form a limit assembly. The upper shell 710 is designed with an upward-curved hinge end, and the lower shell 720 is designed with a downward-curved hinge end. After the two are hinged, an angle is formed at the hinge end. The hinge assembly including the hinge shaft 760, the shaft seat 7210, the shaft sleeve 7113, etc. is located in the angle. The space in the angle is used for the movable space of the hinge end when the upper shell 710 and the lower shell 720 are opened.

[0082] In the above embodiment, the nuts at both ends of the hinge shaft 760 can be set to polygonal or irregular shapes, and the hinged end faces of the upper shell 710 and the lower shell 720 can cooperate with the edges of the nuts to achieve support and positioning of the upper shell 710 and the lower shell 720 when they are opened; or, the support and positioning when opened can be achieved by the friction between the hinge shaft 760 and the shaft holes 7112, 7212; or, protrusions and grooves are set between the mating surfaces of the hinge shaft 760 and the shaft holes 7112, 7212, and the support and positioning can be achieved by the protrusions and grooves when the upper shell and the lower shell are opened; or, positioning support when opened can be achieved by setting a positioning structure such as a protrusion / groove matching structure, a cam matching structure, a spring, a gear matching structure, a magnetic structure or a snap structure by the hinged ends of the upper shell and the lower shell.

[0083] The sixteenth embodiment of the photothermal hairdressing device 700 differs from the fifteenth embodiment in that the power supply assembly includes a battery 770. The remaining components are the same as those of the fifteenth embodiment and can be directly incorporated into the sixteenth embodiment of the photothermal hairdressing device 700. A detailed description thereof is omitted here. In this embodiment, the hairdressing device 700 is powered solely by the battery 770, which is electrically connected to the control circuit board 740 and can be mounted below the control circuit board 740. A battery cover is provided on the lower housing 721, which can be opened to allow battery replacement. The battery 770 can be either a primary battery or a rechargeable battery. The rechargeable battery can be removed from the lower housing 720 for recharging. In this case, the power cord 750 may not be provided. In other embodiments, the power supply assembly includes both the battery 770 and the power cord 750. The photothermal hairdressing device 700 can be powered by the battery 770 and / or the power cord 750, or the battery 770 can be recharged via the power cord 750.

[0084] In the above embodiment, the hinged connection at one end of the upper shell 710 and the lower shell 720 is achieved by inserting a hinge shaft 760 into an axial hole 7110 provided in the upper shell 710 and the lower shell 720 to form a rotational connection, with the rotating shaft 760 serving as the hinge center. In other embodiments, the hinged connection may adopt other forms of the prior art, such as a hinged structure, where one end of the upper shell 710 and the lower shell 720 are hinged together via a hinged structure, with the hinges on both sides respectively mounted on the hinged ends of the upper shell and the lower shell, and the hinges on both sides are rotationally connected via a pivot, with the pivot serving as the hinge center. It is understood that the hinge center may also be the center point where the hinged ends of the upper shell and the lower shell intersect. Other hinged connection methods of the prior art are not described in detail here. Those skilled in the art may apply the hinged connection methods of the prior art to connect the upper shell 710 and the lower shell 720. These embodiments fall within the scope of the disclosure of this application.

[0085] In other embodiments, the control circuit board 740 and / or the power supply assembly may also be arranged in the cavity 714 of the upper shell portion, and the upper shell inner cover 713 is snapped together with the upper shell 711, or the lower shell inner cover 723 is snapped together with the lower shell 721 to seal the control circuit board 740 and / or the battery 770 in the upper shell portion or the lower shell portion.

[0086] In some embodiments, a filter element is provided before the light source emits light. The filter element can be a filter or a filter film, and can be provided as follows: a filter film is plated on the outer surface or inner surface of the light source lamp tube; or a filter is provided between the tube body of the light source lamp tube and the filament of the light source; or the tube body uses a filterable crystal; or a filter is provided between the light source and the light-transmitting panel 733; or a filter is attached or plated on the upper surface or lower surface of the light-transmitting panel 733. As an embodiment, a replaceable filter is provided in the lower shell 721, and an opening is provided in the lower shell 721, and the filter is inserted from the opening. Different filters can be replaced by plugging and unplugging from the opening. A replaceable filter can also be provided in the lower shell in other ways of the prior art.

[0087] In some embodiments, the photothermal hairdressing device (hair straightener) of the present application can utilize light waves of different wavelengths for hair / scalp therapy. This can be achieved by replacing a light source that emits light of different wavelengths, or by filtering the light emitted by the light source through a filter element to obtain light of a predetermined wavelength for application to the hair. The wavelength of the filter or film can be selected as a single desired wavelength (e.g., 900-1800nm, 380-450nm, or 600-750nm), or multiple wavelengths (e.g., two or more wavelength ranges, e.g., 380-450nm + 900-1800nm). According to existing technical records, light waves of different wavelengths have different phototherapy effects on hair / scalp. For example, the near-infrared band of 900-2500nm can stimulate blood circulation in the head; red light of 600-750nm is 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. Through red light, the synthesis of ribonucleic acid in human tissue cells is enhanced, thereby enhancing protein synthesis, which is beneficial to hair growth and increases hair density and elasticity. The use of 420nm light waves inhibits the growth of Malassezia fungus and improves folliculitis.

[0088] Light waves of different wavelengths have different phototherapy effects on the hair / scalp. For example, the near-infrared band of 900-2500nm can stimulate blood circulation in the head; red light of 600-750nm is used to regulate biochemical enzymes in the human scalp and hair follicles, such as 5-a reductase that affects male pattern baldness and tyrosinase that affects gray hair; protein is the main component of hair. Through red light, the synthesis of ribonucleic acid in human tissue cells is enhanced, thereby enhancing protein synthesis, which is beneficial to hair growth and increases hair density and elasticity; 420nm light waves are used to inhibit the growth of Malassezia and improve folliculitis.

[0089] The therapeutic or care effects of light waves of different wavelengths on hair / scalp are existing technologies and have been extensively clinically verified. This application selects corresponding filter elements or light sources for use in hair straighteners based on existing clinical verifications or records in the existing technology or existing phototherapy beauty devices to achieve the therapeutic or care effects of light waves. Therefore, there is no need to provide clinical trials. While using the photothermal effect to straighten hair, the effect of caring for the hair or scalp can be achieved at the same time.

[0090] The photothermal hair straightener 700 of the above embodiment has a clamp-type structure. When not in use, the upper shell 710 and lower shell 720 are closed to form a folded and stored state. To use the photothermal hair straightener 700 for hair straightening, an external force is applied to rotate the upper shell 710 and lower shell 720 about their hinge center (i.e., about the hinge axis 760 or hinge point) to open them. Hair is placed between the upper and lower shells 710, 720, and the upper and lower shells 710, 720 are closed. The power button is pressed to turn on the device, energizing the photothermal device 730 and illuminating the light source 731. The light emitted by the light source 731 is emitted from the light-transmitting panel 733 and acts on the hair sandwiched between the light-transmitting panel 733 and the heat-conducting plate 712 of the upper shell. At the same time, the light energy emitted by the light source 731 is converted into heat energy, which acts on the light-transmitting panel 733 and the heat-conducting plate 712 of the upper shell, causing the light-transmitting panel 733 and the heat-conducting plate 712 of the upper shell to heat up. After the transparent crystal 733 and the heat-conducting plate 712 are heated, they form a heating plate to assist in heating the hair, thereby heating the hair sandwiched between the transparent crystal 733 and the heat-conducting plate 712 of the upper shell.

[0091] The photothermal hair straightener 700 of the present application utilizes the photothermal effect, utilizing the thermal energy of light and the spatial radiation of light, eliminating the conduction of an intermediate medium and the resulting conduction efficiency issues. This allows hair to be heated quickly and instantly, achieving a straightening effect. Simultaneously, it utilizes the effects of a life light source to assist in hair styling and physical therapy (i.e., the physical therapy or care function of light waves in a specific wavelength band). The principles of photothermal hair straightening are as follows: 1. Heating by light source: The light emitted by the light source is directly irradiated and has the heat energy of the light source. The heat transfer of light energy and light heat is used to quickly heat the hair; 2. Use light wave therapy: By selecting a light source or filter element with a specific wavelength band, the light emitted by the light source 731 and emitted from the light-transmitting panel 733 has a predetermined wavelength band, which acts on the user's hair and scalp. For example, the emitted light has a predetermined wavelength band, such as the near-infrared band of 900-2500nm, which can stimulate blood circulation in the head, and the 420nm light wave can inhibit the growth of Malassezia and improve folliculitis. The emitted light has a predetermined wavelength, such as red light of 600-750nm, which acts on the user's hair and scalp and can regulate the biochemical enzymes in the human scalp and hair follicles, such as 5-a reductase that affects male pattern baldness and tyrosinase that affects gray hair; protein is the main component of hair, and through red light, the synthesis of ribonucleic acid in human tissue cells is enhanced, thereby enhancing protein synthesis, which is beneficial to hair growth and increases hair density and elasticity.

[0092] It can be understood that the hair straightener of the above embodiment can also be used as a hair curler, and the hair can be wrapped around the upper shell or the lower shell through the working position to achieve light and heat curling.

[0093] The photothermal hairdressing device of the present application includes a curling iron and a straightening iron. It adopts the photothermal effect, utilizing the thermal energy of light and spatial radiation to eliminate the problems of conduction and conduction efficiency of the intermediate medium, so that the hair is quickly and instantly heated to achieve the curly / straight hairdressing effect; at the same time, the photothermal effect is used to assist in hairdressing and physical therapy; and the heating of the light source is not likely to burn the hair.

[0094] The above description 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 solution of the present application falls within the protection scope of the present application.

Claims

1. A photothermal hairdressing device comprising an upper housing and a lower housing that are hinged to each other, as well as a control circuit board, a key module, and a power supply assembly. The upper and lower housings rotate about a hinge center to open and close, forming a clamping structure for holding hair in the closed state and facilitating the placement or removal of hair in the open state. The device is characterized by: The photothermal hairdressing device further includes a light source assembly, wherein the light source assembly, a key module, and a power supply assembly are electrically connected to the control circuit board; the light source assembly is a photothermal device and is disposed within the lower shell; the photothermal device includes a light source, and light radiated by the light source is emitted from the top surface of the lower shell, directly irradiating the hair and scalp. At the same time, based on the photothermal effect, the heat energy of the light source acts on the hair, and the hair is quickly heated by heat transfer between light energy and photothermal heat; the photothermal hairdressing device is a hair straightener or a hair curler; the power supply assembly includes a battery and / or a power cord, and the power cord is used to connect to an external power source.

2. The photothermal hairdressing device according to claim 1, wherein: A accommodating cavity is formed inside the lower shell, and the photothermal device is installed in the accommodating cavity; the top of the accommodating cavity is the top surface of the lower shell, and a light-transmitting panel is provided; the light source is installed behind the light-transmitting panel; the light-transmitting panel is a working position of the lower shell; a heat-conducting plate is provided at a working position of the upper shell corresponding to the working position of the lower shell; the hair is clamped between the light-transmitting panel and the heat-conducting plate; the light radiated by the light source is emitted from the light-transmitting panel to illuminate the heat-conducting plate, and the heat energy of the light source causes the light-transmitting panel and the heat-conducting plate to heat up to form a heating plate, thereby heating the hair clamped between the heat-conducting plate and the light-transmitting panel.

3. The photothermal hairdressing device according to claim 2, wherein: A reflector is provided outside the light source, which surrounds the lower side of the light source. The upper side of the reflector is not closed but forms an opening, and the two side edges of the opening abut against the light-transmitting panel; the reflector reflects the light radiated downward by the light source and transmits it upward through the light-transmitting panel.

4. The photothermal hairdressing device according to claim 1, wherein: The light source is any one of a halogen lamp, a carbon filament lamp, a tungsten filament lamp, and an incandescent lamp; the control circuit board is installed inside the lower shell.

5. The photothermal hairdressing device according to claim 1, wherein: By selecting a light source with a predetermined wavelength band, or setting a filter element outside the light source, the light radiated by the light source has a single wavelength band or multiple wavelength bands in the near infrared band of 900-2500nm, 380-450nm or 600-750nm to act on the hair and scalp.

6. The photothermal hairdressing device according to claim 5, wherein: The filter element is in the form of a filter or a filter film, and the filter unit is configured as: Coating a filter film on the outer or inner surface of the light source tube; or A filter is provided between the tube body of the light source lamp and the filament of the light source; or The tube body of the light source lamp adopts a filterable crystal; or Disposing a filter between the light source and the light-transmitting panel; or A filter is attached or a filter film is plated on the upper surface or the lower surface of the light-transmitting panel.

7. The photothermal hairdressing device according to claim 6, wherein: A filter device with switchable filter bands is provided in the lower shell; the filter device with switchable filter bands is configured to be manually or electrically operated to switch between different filters or different filter areas of the filter film; The filter device with switchable filter bands is provided with a plug-in and pull-out method for replacing different filters. An opening is provided on the lower shell, and the filter is inserted or pulled out from the opening. The inserted filter is located between the light source and the translucent panel, and different filters are replaced by plugging and pulling from the opening.

8. The photothermal hairdressing device according to claim 2, wherein: The light source adopts a double-head electrode lighting tube or a single-head electrode lighting tube; The positive and negative electrodes of the double-ended electrode point lamp are respectively located on both sides of the lamp, and the positive or negative electrode on one side is electrically connected via a conductive sheet and extended to the other side, so that the positive and negative electrodes of the lamp are both electrically connected to the control circuit board via a power terminal on the same side of the lamp; the conductive sheet includes outer coils respectively arranged outside the two ends of the lamp, one of the outer coils is electrically connected to one of the positive and negative electrodes on one side, and the conductive sheet also includes a straight conductor connecting the two outer coils, so that the conductive sheet leads one of the positive and negative electrodes of the lamp from one side of the lamp to the other side; The positive and negative poles of the single-head electrode point lamp are on the same side of the lamp and are electrically connected to the control circuit board through the power terminal; Fixing the power terminals in the lower shell via a light source fixing plate; The light-transmitting panel is made of transparent crystal of any one of sapphire, quartz and borosilicate.

9. The photothermal hairdressing device according to claim 2, wherein: The upper shell and the lower shell include a hinged end and a free end; the hinged end rotatably connects the upper shell and the lower shell through a hinge center; the free ends of the upper shell and the lower shell can relatively open or close; the hinge center is a hinge axis or a hinge center point.

10. The photothermal hairdressing device according to claim 9, wherein: The end face of the hinged end of the upper shell forms an upward inclined surface, and the end face of the hinged end of the lower shell forms a downward inclined surface, so that the upper shell and the lower shell form an angle at the hinged end; the space at the angle is used to install the hinge assembly and the movement space for the upper shell and the lower shell at the hinged end; the hinge assembly includes a hinge shaft and shaft holes corresponding to the hinged ends of the upper shell and the lower shell, and the hinge shaft is inserted into the shaft hole for rotational engagement.

11. The photothermal hairdressing device according to claim 10, wherein: The upper shell portion includes an upper shell, the heat conducting plate and an upper shell inner cover, the upper shell inner cover is buckled on the bottom of the upper shell; the upper shell forms an upward inclined surface at the end surface of the hinge end and is provided with a shaft sleeve, and the shaft sleeve is formed with the shaft hole through; the upper shell inner cover forms an upturned end at the hinge end, the upturned end has an inclined surface and is provided with a through hole; the upturned end of the upper shell inner cover is adapted to the upward inclined surface formed on the hinge end of the upper shell; the shaft sleeve at the hinge end of the upper shell passes through the through hole of the upturned end of the upper shell inner cover and protrudes downward; the upper shell inner cover is provided with a window, which is a through hole, and the heat conducting plate is installed in the window; The lower shell portion includes a lower shell and a lower shell inner cover that are buckled together, and the accommodating cavity is defined inside; the lower shell is provided with an axle seat at the hinge end, and the axle seat forms a cavity for accommodating and installing the axle sleeve of the upper shell portion, and each side of the axle seat cavity is provided with an axle hole to form a pair of axle holes, and the axle sleeve of the upper shell portion is located between the axle holes, and the axle holes are aligned and connected with the axle holes of the axle sleeve, and the hinge shaft is inserted into the aligned axle holes to form a hinge; the lower shell forms a downward inclined surface at the end surface of the hinge end, and the axle seat is provided in the downward inclined surface; The inner cover of the lower shell forms a downward-curving end at the hinge end, and the downward-curving end has an inclined surface and is provided with an opening; At the hinge end, the downward-curved end of the lower shell inner cover is adapted to the downward-inclined surface of the lower shell, and the shaft seat at the end of the lower shell protrudes upward through the opening of the downward-curved end of the lower shell inner cover; the lower shell inner cover is provided with a window, which is a through hole, and the light-transmitting panel is installed in the window.

12. The photothermal hairdressing device according to claim 11, wherein: The upper side of the lower shell is open, and the lower shell inner cover is closed on the upper side opening of the lower shell, and the edges are adapted to each other to form a groove and a flange that fits tightly; The bottom side of the upper shell is open, and the inner cover of the upper shell is covered on the bottom side opening of the upper shell, and the edges are adapted to each other to form a slot that is tightly matched with the flange.

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