JP2024034294A - light epilator - Google Patents

Abstract

[Problem] To provide an optical hair removal device that maintains the cooling effect by air-cooling a radiator that radiates heat from a cooling means with airflow, and prevents temperature rise by air-cooling an electric board including a booster circuit of a light source for hair removal with airflow. That's true. This optical hair removal device 1 performs hair removal by irradiating the skin surface with pulsed light emitted by a xenon lamp 40 (light source for hair removal). The optical hair removal device 1 includes a Peltier element (cooling means) that cools a transparent plate 6 installed in an exit window 5 from which pulsed light is emitted, a radiator 52 that radiates heat from the Peltier element, and a xenon lamp. It includes an electric board 66 on which electric elements including 40 drive circuits are mounted, and a fan 65 (air blowing means) that cools the radiator 52 and the electric board 66 at the same time using generated airflow. This fan 65 air-cools the radiator 52 with the airflow sucked in, and air-cools the electric board 66 with the airflow blown out. The heat sink 52 has a structure in which a plurality of approximately L-shaped plate fins 56 are formed in the thickness direction with gaps 57 interposed therebetween. [Selection diagram] Figure 5

Description

Application for application of Article 30, Paragraph 2 of the Patent Act August 25, 2020 Published address: https://led-lover. Published on the website at jp/collagendatsumou/lp/.

The present invention relates to an optical hair removal device that performs hair removal by irradiating light onto the skin surface.

Traditionally, hair removal for cosmetic purposes by irradiating the skin surface with light was performed at beauty salons, but in recent years, home-use photoremoval devices have been sold, and hair removal treatments are now being performed at home. . A photo epilator uses irradiated light that is absorbed by the black hairs growing on the skin surface and converted into heat, and uses the heat to treat the hairs on the skin surface. An example of a home-use optical hair removal device is disclosed in Patent Document 1 listed below.

Patent No. 6513029

The invention described in Patent Document 1 is an optical hair removal device that performs hair removal treatment by irradiating light from a light emitting part onto the skin surface, and cools the skin surface on the same surface as the irradiation window part where the light is irradiated. A cooling means is provided. The device is configured to include a fan for air-cooling the light emitting section while dissipating heat from the cooling means.

Although this invention described in Patent Document 1 has a configuration in which the cooling means and the light emitting section are air-cooled by a fan, the configuration is not such that air from the fan is directly blown onto the light source substrate. Since the light source board includes a booster circuit, a charge circuit, and a capacitor section, it becomes hot during use, and there is a problem in that the user feels the heat when touching the main body cover around the light source board.

The present invention has been made in view of the above circumstances, and it maintains the cooling effect by air-cooling the radiator that radiates the heat of the cooling means with airflow, and also provides an electric board including a booster circuit for the light source for hair removal. To provide a photo-epilator which is air-cooled by airflow and prevents temperature rise.

In order to solve this problem, the invention according to claim 1 provides a photoremoval device that performs hair removal by irradiating the skin surface with pulsed light emitted by a light source for hair removal disposed inside the main body, wherein the pulsed light a cooling means for cooling a transparent plate installed in an exit window portion from which the light is emitted; a radiator attached in contact with the cooling means for dissipating the heat of the cooling means; and a drive circuit for the hair removal light source. The present invention is characterized in that it includes an electric board on which an electric element is mounted, and an air blower that air-cools the radiator and the electric board at the same time using a generated air current.

The invention according to claim 2 is characterized in that, in addition to the structure according to claim 1, the air blowing means air-cools the radiator with the airflow that is sucked in, and air-cools the electric board with the airflow that is blown out. shall be.

The invention according to claim 3 provides that, in addition to the structure according to claim 1 or 2, the heat radiator has a plurality of plate-like fins having a substantially L-shape of European letters formed with gaps in the thickness direction. After the airflow generated by the air blowing means passes through the first surface of the radiator formed by one of the two sides of the approximately L-shape of the plate-like fin, , passing through a second surface of the radiator formed by the other of the two sides.

In the invention according to claim 4, in addition to the structure according to claim 3, the hair removal light source is formed such that the first surface and the second surface of the radiator are two adjacent surfaces. The airflow generated by the air blowing means air-cools the hair removal light source after passing through the first surface of the radiator, and then the second surface of the radiator. It is characterized by passing through the plane of

The invention according to claim 5 provides, in addition to the configuration according to claim 1 or 2, a light emitting diode is disposed around the emission window, and the skin surface is irradiated with light emitted by the light emitting diode. Features.

The invention according to claim 6 is characterized in that, in addition to the structure according to claim 5, a plurality of the light emitting diodes are provided, and the plurality of light emitting diodes include those having different emission wavelengths. shall be.

According to the invention of claim 1, the radiator that radiates heat from the cooling means and the electric board including the drive circuit of the hair removal light source are simultaneously air-cooled by the airflow generated by the blowing means, so that the cooling effect of the cooling means is improved. It is possible to maintain the temperature of the electric board including the booster circuit of the hair removal light source from increasing in temperature.

According to the invention of claim 2, the air blowing means is arranged in the order of the radiator, the air blowing means, and the electric board in order to air-cool the radiator with the airflow sucked in and air-cool the electric board with the airflow blown out. Not only can it be miniaturized, but the electric board can be efficiently air-cooled by blowing out a strong amount of air from the blowing means.

According to the third aspect of the invention, the radiator has a structure in which a plurality of substantially L-shaped plate-like fins are formed with gaps in between in the plate thickness direction, and the airflow generated by the air blowing means is transmitted through the plate-like fins. After passing through the first surface of the radiator constituted by one of the two sides forming the approximately L-shape of the fin, the other side of the two sides forming the approximately L-shape of the plate-like fin. The second surface of the radiator is configured to pass through the second surface of the radiator. By forming the radiator with approximately L-shaped plate-like fins, the entire radiator can be made smaller, and the airflow can efficiently radiate heat by passing through the first and second surfaces of the radiator. can.

According to the invention of claim 4, the light source for hair removal is arranged in a substantially rectangular parallelepiped space formed by the first surface and the second surface of the radiator as two adjacent surfaces, and the hair removal light source is arranged in a substantially rectangular parallelepiped space formed as two adjacent surfaces of the radiator, and the light source After passing through the first surface of the radiator, the hair removal light source is air-cooled, and then the light source is configured to pass through the second surface of the radiator. The airflow generated by the blower means allows not only the radiator but also the hair removal light source to be air-cooled. Further, by adopting such a configuration, miniaturization can also be achieved.

According to the invention of claim 5, the skin surface is irradiated with light emitted by the light emitting diode. Irradiating the skin with light from a light emitting diode is expected to have the effect of producing collagen, so the effect of collagen production can be obtained at the same time as hair removal.

According to the invention of claim 6, a plurality of light emitting diodes that irradiate light onto the skin surface are provided, and the plurality of light emitting diodes include those having different emission wavelengths. Since it is expected that the depth at which light reaches the inside of the skin differs depending on the emission wavelength, by irradiating light with multiple wavelengths, it is possible to obtain the effect of producing collagen with a width in the direction of the depth of the skin. Can be done.

1 is a schematic external view of a photoepilator according to an embodiment of the present invention, in which (a) is a front view, (b) is a right side view, (c) is a left side view, (d) is a plan view, and (e ) is a bottom view, and (f) is a rear view. FIG. 2 is a diagram illustrating a light emitting diode disposed around the output window of the optical hair removal device according to the same embodiment, in which (a) is a schematic external view of the area around the output window, and (b) is a light emitting diode. FIG. 2 is a schematic diagram of an LED board on which diodes are mounted. FIG. 2 is an enlarged schematic external view of the periphery of the display section of the optical hair removal device according to the same embodiment. It is a schematic perspective view of the optical hair removal device based on the same embodiment, (a) is a figure seen from the main body lower cover side, (b) is a figure seen from the main body upper cover side. It is an exploded view of the inside of the main body of the optical hair removal device based on the same embodiment, (a) is an exploded view of the entire optical hair removal device, and (b) is an enlarged view of the periphery of the xenon lamp fixing leg. It is a figure explaining the radiator of the optical hair removal device based on the same embodiment, (a) is a schematic diagram of a radiator, (b) is a figure which shows the positional relationship of a radiator and a xenon lamp. FIG. 2 is a schematic view of the optical hair removal device according to the same embodiment with the upper and lower body covers removed, in which (a) is a front view, (b) is a right side view, (c) is a left side view, and (d) is a is a rear view. 2 is a schematic diagram of the optical epilator according to the embodiment with the top cover of the main body removed and a schematic diagram of the back side of the top cover of the main body, (a) is a schematic diagram with the top cover of the main body removed, and (b) is a schematic diagram of the back side of the main body upper cover. It is a figure explaining the flow of the airflow inside the optical hair removal device based on the same embodiment, (a) is a right side view with the upper and lower main body covers removed, (b) is a main body lower cover, a radiator, and a main body. FIG. 3 is a diagram illustrating the flow of airflow by disassembling the structure of the upper cover side. It is a schematic block diagram of an electrical block of the optical hair removal device according to the same embodiment. It is a figure showing the general flow of operation of the optical hair removal device concerning the same embodiment.

Embodiments of this invention will be described using FIGS. 1 to 11.

FIG. 1 is a schematic external view of a photoepilator 1 according to an embodiment of the present invention, in which (a) is a front view, (b) is a right side view, (c) is a left side view, and (d) is a plan view. In the figure, (e) is a bottom view, and (f) is a rear view.

This optical hair removal device 1 has an elongated appearance extending back and forth in the longitudinal direction, and has a grip part 4 on the rear part 3 of the main body to be held by the user, and a light for hair removal on the front part 2 of the main body. It has an exit window 5 for emitting light. Hair removal is performed by irradiating the skin surface with pulsed light emitted from a xenon lamp 40 as a "light source for hair removal" disposed inside the main body through the emission window 5.

As shown in FIG. 1(a), a light-transmitting plate 6 is installed in the emission window 5, and pulsed light passes through the light-transmitting plate 6 while the light-transmitting plate 6 is in contact with the skin surface. irradiated. Although crystal glass is used as the material for the transparent plate 6, other glass materials or plastic materials may be used. Further, as will be described later, since the transparent plate 6 is cooled to about 4° C., it has the effect of cooling and calming the skin surface irradiated with pulsed light.

A touch sensor 7 is disposed around the emission window 5 so as to surround the emission window 5, and detects whether or not the touch sensor 7 is in contact with the skin. When there is no contact with the skin, the xenon lamp 40 inside the main body does not emit light, and only when contact is detected, the xenon lamp 40 is controlled to emit light, thereby ensuring safety. In this embodiment, a capacitive type touch sensor 7 is used, but other resistive film type, ultrasonic type, or optical type touch sensors may be used.

An LED light emitting section 8 is provided around the touch sensor 7 to emit light from a light emitting diode (LED). The LED light emitted from the LED light emitting section 8 is irradiated onto the skin surface at the same time as the pulsed light from the xenon lamp 40.

A right air intake hole 9 and a left air intake hole 10 are formed on the side surfaces of the LED light emitting section 8 on both sides of the main body to take air from outside the main body into the inside of the main body. Furthermore, an exhaust hole 11 is formed on the side surface of the tip of the main body to exhaust the air inside the main body to the outside. The right side intake hole 9, the left side intake hole 10, and the exhaust hole 11 are composed of a plurality of holes so that air can move inside and outside the main body without resistance.

As shown in FIGS. 1(b), (c), (d), and (e), the appearance of the main body of this optical hair removal device 1 is composed of a main body upper cover 17 and a main body lower cover 18. A right side intake hole 9, a left side intake hole 10, and an exhaust hole 11 are formed. The main body upper cover 17 and the main body lower cover 18 are made of ABS resin (Acrylonitrile-Butadiene-Styrene Resin) and polycarbonate.

As shown in FIG. 1(e), a power cable connecting portion 16 to which external power is supplied is provided on the side surface of the rear end of the main body.

Further, as shown in FIG. 1(f), the main body top cover 17 is provided with a display section 12, a power button/output adjustment button 13, a mode setting button 14, and an irradiation button 15. The display unit 12 displays the settings and operating status of the optical hair removal device 1. When the power button/output adjustment button 13 is pressed and held for about 2 seconds, the power of the photoepilator 1 is turned on, and then when it is pressed briefly, the irradiation output level of the xenon lamp 40 is adjusted and set in five levels. To turn off the power, press and hold this button 13 again. The mode setting button 14 switches the LED light emitted from the LED light emitting section 8 between on and off. When the irradiation button 15 is pressed, the xenon lamp 40 emits pulsed light due to discharge, and the pulsed light is emitted from the emission window 5.

FIG. 2 is a diagram illustrating light emitting diodes (LEDs) disposed around the output window 5 of the optical hair removal device 1, and (a) is an enlarged schematic external view of the area around the output window 5; b) is a schematic diagram of an LED board 22 on which light emitting diodes are mounted.

The LED light emitting section 8 is composed of an LED board 22 on which LEDs are mounted, and an LED panel 23 arranged on the front surface thereof. In this embodiment, 12 LEDs are provided, of which 8 are red LEDs 20 with an emission wavelength of 620 to 640 [nm], and 4 are yellow LEDs 21 with an emission wavelength of 580 to 595 [nm]. The number of these LEDs and the emission wavelength may be changed arbitrarily.

Surface-mounted LEDs are used for miniaturization, such as the LED board 22 shown in FIG. 2(b). The LED panel 23 placed on the front surface of the LED board 22 is semi-transparent, and is formed so that the periphery of the surface-mounted LED is hollowed out in a substantially hemispherical shape, so that the light emitted from the LED is diffused. ing.

Irradiating the skin surface with LED light is expected to produce collagen. In addition, red light has a longer wavelength than yellow light, so it is assumed that it can reach deeper into the skin. Yellow LED light causes collagen to be produced on the skin surface, and red LED light causes the formation of collagen inside the skin. It is expected to have a collagen production effect at a deeper level. In this way, the hair removal effect due to pulsed light irradiation from the xenon lamp 40 and the collagen production effect due to LED light irradiation can be obtained simultaneously.

FIG. 3 is an enlarged schematic external view of the periphery of the display section 12 of the optical hair removal device 1. As shown in FIG. The power status display section 30 indicates the status of the power supply and lights up when the power is turned on. An LCD (Liquid Crystal Display) display section 31 adjacent to the power status display section 30 is a fan operation display section 33 that indicates by lighting that the air cooling fan 65 inside the main body is operating normally. , an irradiation output level display section 34 that displays the irradiation output of the xenon lamp 40 in five levels, and a remaining irradiation number display section 35 that displays the remaining number of irradiations of the xenon lamp 40. Since the xenon lamp 40 of this photoepilation device 1 can irradiate 500,000 times, the number displayed on the remaining irradiation number display section 35 counts down from 500,000 by one for each irradiation.

FIG. 4 is a schematic perspective view of the optical hair removal device 1, in which (a) is a view seen from the main body lower cover 18 side, and (b) is a view seen from the main body upper cover 17 side. This optical hair removal device 1 is miniaturized as a whole, and the grip portion 4 has a shape that is easy to hold. It also has an excellent design appearance.

FIG. 5(a) is an exploded view of the inside of the main body of the optical hair removal device 1.

The xenon lamp 40, which is a light source for hair removal, is a lamp that utilizes light emission due to discharge in xenon gas, and in this optical hair removal device 1, pulsed light is emitted from the xenon lamp 40. A specular reflector 42 is provided around the back of the xenon lamp 40, and the light emitted toward the front of the xenon lamp 40 travels straight, but the light emitted toward the back of the xenon lamp 40 is reflected by the specular reflector 42. is guided in the front direction. A xenon lamp fixing leg portion 41 and a specular reflection plate 42 to which the xenon lamp 40 is fixed are fixed to a xenon lamp fixing substrate 43.

An optical filter 53 is disposed in the front direction of the xenon lamp 40, and this optical filter 53 blocks wavelengths of 560 [nm] or less in the spectrum of light emitted from the xenon lamp 40. [nm]]. In the wavelength band below 560 [nm], light is easily absorbed by hemoglobin and puts a heavy burden on the skin, so light below 560 [nm] is blocked, and only light with a wavelength longer than 560 [nm] is blocked. Irradiates the skin surface. Furthermore, for light with a wavelength of 560 [nm] or more, the absorption rate of hemoglobin is extremely reduced, and the difference from the absorption rate of melanin becomes large, so that the absorption efficiency of melanin is improved.

The pulsed light having a wavelength of 560 [nm] or more that has passed through this optical filter 53 passes through a transparent plate 6 installed in the exit window 5 and is irradiated onto the skin surface.

An exit window 5 is formed on the front side of the exit window forming frame 50, and a light transmitting plate 6 is attached to the exit window 5 by adhesive. Furthermore, an optical filter 53 is fixed to the back surface of the exit window forming frame 50 via a sealing frame member 54 by an optical filter fixing member 55 . Furthermore, a Peltier element 51 serving as a "cooling means" is closely attached to the right side surface of the exit window forming frame 50. Further, the other surfaces of the exit window forming frame 50 have a wall-like closed structure. In this way, inside the exit window forming frame 50, a sealed space 64 is formed by the walls forming the light transmitting plate 6, the optical filter 53, the Peltier element 51, and other surfaces. The Peltier element 51 is a semiconductor element having a Peltier effect, which is a thermoelectric effect, and when a current is passed through the element 51, one surface of the planar element becomes a heat absorption surface 68 and the other surface becomes a heat generation surface 69. Since the heat absorbing surface 68 of the Peltier element 51 is disposed on the side of the closed space 64, the temperature of the air in the closed space 64 decreases, and the temperature of the transparent plate 6 decreases accordingly. In this way, the transparent plate 6 is cooled by the Peltier element 51. Since the Peltier element 51 cools the transparent plate 6 through the air in the closed space 64, the entire transparent plate 6 is cooled uniformly. In this embodiment, the temperature of the transparent plate 6 is cooled to 4°C.

A heat radiator 52 is attached to the heat generating surface 69 of the Peltier element 51. Specifically, the radiator 52 is attached so that the Peltier element contact surface 56 contacts the heat generating surface 69 of the Peltier element 51. By radiating the heat from the heat generating surface 69 by the heat radiator 52, the effect of sustaining the cooling effect of the Peltier element 51 is produced. In this embodiment, one Peltier element 51 is used, but a plurality of Peltier elements 51 may be used.

The heat radiator 52 has a structure in which a plurality of plate-like fins 57 each having a substantially L-shape are formed in the thickness direction with gaps 58 interposed therebetween.

Here, among the two sides of the approximately L-shape of the plate-like fins 57, on one side closer to the Peltier element contact surface 56, a surface constituted by the outer edges of the plurality of plate-like fins 57 is connected to the heat sink 52. The bottom surface 62 of the radiator 52 is defined as the surface formed by the outer edges of the plurality of plate-like fins 57 on the other of the two sides of the approximately L-shape.

Furthermore, of the two sides of the approximately L-shape of the plate-like fins 57 , on one side closer to the Peltier element contact surface 56 , the surface constituted by the inner edges of the plurality of plate-like fins 57 is attached to the radiator 52 . A first surface 59 is defined as the second surface 60 of the radiator 52, and a surface formed by the inner edges of the plurality of plate-like fins 57 on the other of the two sides of the approximately L-shape is defined as the first surface 59.

The first surface 59 and the second surface 60 of the heat sink 52 intersect at a substantially right angle. Further, the back surface 61 and the first surface 59 of the heat radiator 52 are opposed to each other, and the bottom surface 62 and the second surface 60 of the heat radiator 52 are opposed to each other.

When the radiator 52 is assembled, the back surface 61 of the radiator 52 is located at the right air intake hole 9, and the xenon lamp 40 is arranged in a direction facing the second surface 60 of the radiator 52 (front direction). A fan 65 serving as a "ventilation means" is arranged in a direction facing the bottom surface 62 of the radiator 52 (backward direction).

When the fan 65 operates, an airflow is generated on the intake side, but since the xenon lamp fixing board 43 is located at the left intake hole 10, the airflow is blocked by the xenon lamp fixing board 43, and the intake air from the left intake hole 10 is small. Most of the intake air is supplied from the right intake hole 9. This xenon lamp fixing board 43 functions to constitute a part of the ventilation path for air taken in from the right side intake hole 9. Further, since the right side intake hole 9 and the left side intake hole 10 are formed in a direction that is approximately 90 degrees to the front direction of the exit window 5, the user can use the device comfortably without inhaling air coming into contact with the user's skin.

Due to the operation of the fan 65, the air taken in from the right side intake hole 9 passes through the back surface 61 and first surface 59 of the radiator 52, cools the radiator 52, cools the xenon lamp 40, and then cools the xenon lamp 40. , passes through the second surface 60 and bottom surface 62 of the radiator 52 to cool the radiator 52, and is sucked into the fan 65. Then, the air flow from the fan 65 is directly blown onto the electric board 66 disposed facing the fan 65, thereby cooling the board 66 with air.

By air-cooling the radiator 52 with the intake air flow, the temperature rise of the heat generating surface 69 of the Peltier element 51 is suppressed, and the cooling effect is maintained. In particular, the configuration is such that the portion of the heatsink 52 near the Peltier element contact surface 56 is first air-cooled using relatively low-temperature air taken in from the outside of the main body, making heat dissipation from the heat generating surface 69 of the Peltier element 51 more efficient. can be done. Further, since the xenon lamp 40 emits light by discharging, it generates heat, but this heat is also air-cooled by the intake airflow.

The electric board 66, which is air-cooled by the airflow blown out from the fan 65, is equipped with a circuit for charging a charging/discharging capacitor 67 for the xenon lamp, which charges and discharges the xenon lamp 40 in order to emit pulsed light, and a booster circuit for the xenon lamp 40. A lamp drive circuit 106 and the like are formed, and electric elements are mounted. Examples of electric elements include a transformer, a diode, a transistor such as a field effect transistor (FET), a capacitor, a resistor, and a CPU (Central Processing Unit) 102 that constitutes the control unit 101 that constitute a booster circuit or a charge circuit. , a microcomputer including a ROM (Read Only Memory) 103, a RAM (Random Access Memory) 104, and other ICs (Integrated Circuits). Since the xenon lamp charge/discharge capacitor 67 supplies a high voltage that causes the xenon lamp 40 to emit light by discharging, it is necessary to raise the voltage to a high voltage with a booster circuit, and the electric board 66 generates heat and becomes high temperature. Since the electric board 66 is cooled by air blowing from the fan 65 and temperature rise is suppressed, even if the user touches the main body cover portion around the electric board 66, the user can continue using the device without feeling hot.

The airflow that air-cooled the electric board 66 passes through an exhaust passage 74 formed by an exhaust passage forming plate 73 and is discharged to the outside from an exhaust hole 11 formed at the tip of the main body. Since the exhaust hole 11 is oriented in a direction that is approximately 90 degrees to the front direction of the exit window 5, the user can use the device comfortably without the exhaust air hitting the skin surface of the user.

Note that the ventilation passage on the intake side and the exhaust passage are partitioned by elements such as the ventilation passage lower cover 70, the ventilation upper cover 71, and the partition wall 72.

Further, the light transmitting plate 6, the optical filter 53, the xenon lamp 40, the second surface 60 and the bottom surface 62 of the radiator 52, the fan 65, and the electric board 66 installed in the exit window 5 are arranged almost in a straight line, It has a compact structure.

FIG. 5(b) is an enlarged view of the periphery of the xenon lamp fixing leg portion 41. One end of the substantially U-shaped xenon lamp fixing leg 41 is fixed to the xenon lamp fixing board 43, and the other end is bent into a substantially circular shape so that it can be attached by locking the terminal of the xenon lamp 40. , a slit is formed in that part.

FIG. 6 is a diagram illustrating the radiator 52 of the optical hair removal device 1, in which (a) is a schematic diagram of the radiator 52, and (b) is a diagram showing the positional relationship between the radiator 52 and the xenon lamp 40.

As described above, the heat sink 52 has a structure in which a plurality of substantially L-shaped plate-like fins 57 are formed in the thickness direction with gaps 58 interposed therebetween.

Here, a substantially rectangular parallelepiped space 63 formed by the first surface 59 and second surface 60 of the radiator 52 as two adjacent surfaces is assumed, as indicated by the two-dot chain line in FIG. 6(a). It is space.

As shown in FIG. 6(b), the xenon lamp 40 is arranged within this substantially rectangular parallelepiped space 63.

FIG. 7 is a schematic view of the optical epilator 1 with the upper and lower body covers 17 and 18 removed, in which (a) is a front view, (b) is a right side view, (c) is a left side view, and ( d) is a rear view.

Although the LED board 22 is attached to FIG. 7(a), FIGS. 7(b) and 7(c) are diagrams in which the LED board 22 is not attached, and the position of the LED board 22 is indicated by the two-dot chain line. It is shown in

As shown in FIGS. 7(b) and 7(c), the electric board 66 and the fan 65 are arranged to face each other, and the airflow from the fan 65 is blown directly onto the electric board 66.

In addition, as shown in FIG. 7(c), the xenon lamp fixing board 43 is arranged so as to block the left side intake hole 10, so that the structure is such that air from outside the main body is difficult to be taken in from the left side intake hole 10. The intake air is mainly taken from the right intake hole 9. The xenon lamp fixing substrate 43 functions to constitute a part of an intake passage for air taken in from the right intake hole 9. As shown in FIG. 7(b), since the radiator 52 is disposed immediately after the right intake hole 9, the radiator 52 is efficiently air-cooled by the suction airflow.

As shown in FIG. 7D, the LCD display section 31 and the like are arranged on the surface of the electric board 66 on the main body upper cover 17 side.

FIG. 8(a) is a schematic diagram of the optical hair removal device 1 with the cover 17 on the main body removed. A charging/discharging capacitor 67 for a xenon lamp is arranged inside the grip part 4 formed in the rear part 3 of the main body, and an electric board 66 is arranged in the front part 2 of the main body. As shown in this figure, there is no wasted space and the device is compact.

FIG. 8(b) is a schematic diagram of the back surface of the main body upper cover 17. A button board 80 for detecting depression of the power button/output adjustment button 13 and the mode setting button 14 is arranged.

FIG. 9 is a diagram illustrating the flow of air inside the optical hair removal device 1, in which (a) is a right side view with the upper and lower main body covers 17 and 18 removed, and (b) is a right side view of the main body lower cover 18 and heat dissipation. FIG. 4 is a diagram illustrating the flow of airflow by disassembling the structure of the container 52 and the main body upper cover 17 side.

In FIGS. 9A and 9B, the airflow generated by the fan 65 is represented by arrows. As shown in these figures, when the fan 65 rotates and air is blown in the direction of the electrical board 66, the airflow sucked into the fan 65 causes the air sucked in from the right intake hole 9 to flow between the back surface 61 of the radiator 52 and the The air passes through the first surface 59 to cool the radiator 52, then passes through the second surface 60 and bottom surface 62 of the radiator 52 to cool the radiator 52, and is sucked into the fan 65. Then, the airflow blown out from the fan 65 flows over the entire surface of the electric board 66 disposed facing the fan 65, and the board 66 is air-cooled.

The airflow that air-cooled the electrical board 66 flows on the surface of the board 66, passes through an exhaust passage 74 formed by an exhaust passage forming plate 73, and exits the body from an exhaust hole 11 formed at the tip of the body. It is discharged.

Further, as shown in FIG. 6(b), the xenon lamp 40 is arranged in a substantially rectangular parallelepiped space 63 formed by the first surface 59 and the second surface 60 of the radiator 52 as two adjacent surfaces. Therefore, after the drawn air passes through the first surface 59 of the radiator 52 as shown in FIGS. and is sucked into the fan 65.

FIG. 10 is a schematic diagram of the electrical block configuration of the optical hair removal device 1. As shown in FIG.

The optical hair removal device 1 includes a control unit 101 that includes a CPU 102, a ROM 103, and a RAM 104. The CPU 102 executes a program for controlling the optical hair removal device 1 and performs arithmetic processing. The ROM 103, which is a nonvolatile memory, stores programs executed by the CPU 102 and data used in processing the programs. The RAM 104, which is a volatile memory, operates as a work area for program execution and arithmetic processing by the CPU 102. The control unit 101 controls the operation of each element constituting the optical hair removal device 1.

The electric circuit 100 of the optical hair removal device 1 also includes a xenon lamp drive circuit 106, an LED drive circuit 108, a Peltier element drive circuit 112, a fan drive circuit 114, an LCD drive circuit 116, a power button/output adjustment button detection circuit 118, and an irradiation It includes a button detection circuit 120, a mode setting button detection circuit 122, a touch sensor drive circuit 124, and a buzzer drive circuit 126.

The xenon lamp drive circuit 106 includes a circuit for charging a xenon lamp charging/discharging capacitor 67 that charges and discharges the xenon lamp 40 to emit pulsed light, a booster circuit for the xenon lamp, and the like. The xenon lamp 40 emits pulse light by charging and discharging the charging/discharging capacitor 67. The LED drive circuit 108 turns on or off the red LED 20 and the yellow LED 21 based on the control of the control unit 101. The Peltier device drive circuit 112 operates the Peltier device 51 based on the control of the control unit 101. The fan drive circuit 114 operates the fan 65 based on the control of the control unit 101. The LCD drive circuit 116 causes the LCD display section 31 to display information under the control of the control section 101. The power button/output adjustment button detection circuit 118 detects the pressed state of the power button/output adjustment button 13 based on the control of the control unit 101. The irradiation button detection circuit 120 detects the pressed state of the irradiation button 15 based on the control of the control unit 101. The mode setting button detection circuit 122 detects the pressed state of the mode setting button 14 under the control of the control unit 101. The touch sensor drive circuit 124 operates the touch sensor 7 under the control of the control unit 101 to detect a contact state. The buzzer drive circuit 126 operates the buzzer 81 under the control of the control unit 101.

Next, a method of using the optical hair removal device 1 according to this embodiment will be explained.

FIG. 11 is a diagram schematically showing the flow of the operation of the optical hair removal device 1. As shown in FIG.

When the user presses and holds the power button/output adjustment button 13 to turn on the power (step S1), the control unit 101 of the optical hair removal device 1 causes the power button/output adjustment button detection circuit 118 to Pressing of the output adjustment button 13 is detected (step S10). Then, the control unit 101 controls the LCD drive circuit 116 to display the LCD display unit 31, controls the Peltier element drive circuit 112 to operate the Peltier element 51, and controls the fan drive circuit 114 to operate the fan 65. It is operated (step S11).

When the user presses the power button/output adjustment button 13 to adjust the irradiation output level of the xenon lamp 40 (step S2), the control unit 101 detects that the power button/output adjustment button 13 is pressed (step S2). S12), and setting the irradiation output level (step S13).

When the user presses the mode setting button 14 to turn on the red LED 20 and yellow LED 21 (step S3), the control unit 101 detects the press of the mode setting button 14 by the mode setting button detection circuit 122 (step S14). ), the LED drive circuit 108 is controlled to turn on the red LED 20 and yellow LED 21 (step S15).

When the user brings the emission window 5 of the optical epilator 1 into contact with the skin and presses the irradiation button 15 to perform hair removal treatment (step S4), the control unit 101 causes the irradiation button detection circuit 120 to press the irradiation button 15. 15 is detected (step S16), and the touch sensor drive circuit 124 is controlled to detect the touch sensor 7 (step S17).

If the detection state of the touch sensor 7 is that it is in contact with the skin (Yes in step S18), the control unit 101 controls the xenon lamp drive circuit 106 to discharge the xenon lamp 40 and emit pulsed light. Light is emitted, and pulsed light is emitted from the emission window section 5 (step S19).

If the detection state of the touch sensor 7 is that it is not in contact with the skin (No in step S18), the xenon lamp 40 is not discharged and the process waits until the next press of the irradiation button 15 is detected.

If the user continues the hair removal process (Yes in step S5), the process returns to step S4 and the irradiation button 15 is pressed. In response to this pressing of the irradiation button 15, the control unit 101 performs the operations from step S16 onwards.

When the user ends the hair removal process (No in step S5), the user presses and holds the power button/output adjustment button 13 (step S6). The control unit 101 detects the pressing of the power button/output adjustment button 13 by interrupt processing or the like (step S20), stops the display on the LCD display unit 31, stops the operation of the Peltier element 51, and turns on the fan 65. The operation is stopped (step S21).

Next, the effects of this embodiment will be explained.

According to the present embodiment, the heat radiator 52 that radiates heat from the Peltier element 51 and the electric board 66 including the drive circuit of the xenon lamp 40 are simultaneously air-cooled by the airflow generated by the fan 65. The cooling effect of the xenon lamp 40 can be maintained, and the temperature of the electric board 66 including the booster circuit of the xenon lamp 40 can be prevented from rising.

Further, according to the present embodiment, the fan 65 air-cools the radiator 52 with the airflow sucked in, and the electrical board 66 with the airflow blown out. Not only can it be made smaller by arranging them in sequence, but also the electric board 66 can be efficiently air-cooled by the strong air volume blown out from the fan 65.

Further, according to the present embodiment, the heat sink 52 has a structure in which a plurality of approximately L-shaped plate-like fins 57 are formed in the plate thickness direction with gaps 58 interposed therebetween, and the airflow generated by the fan 65 , after passing through the first surface 59 of the radiator 52 formed by one of the two sides forming the substantially L-shape of the plate-like fin 57, the plate-like fin 57 forms a substantially L-shape. It is configured to pass through a second surface 60 of the radiator 52 formed by the other of the two sides. By forming the radiator 52 with substantially L-shaped plate-like fins 57, the entire radiator 52 can be made smaller, and the airflow can pass through the first surface 59 and second surface 60 of the radiator 52, thereby reducing the size of the radiator 52. Heat can be dissipated efficiently.

Further, according to the present embodiment, the xenon lamp 40 is disposed within the substantially rectangular parallelepiped space 63 formed by the first surface 59 and the second surface 60 of the radiator 52 as two adjacent surfaces, and The airflow generated by 65 air-cools the xenon lamp 40 after passing through the first surface 59 of the radiator 52, and then passes through the second surface 60 of the radiator 52. The airflow allows not only the radiator 52 but also the xenon lamp 40 to be air-cooled. Further, by adopting such a configuration, miniaturization can also be achieved.

Further, according to this embodiment, the skin surface is irradiated with light emitted by the light emitting diode. Irradiating the skin with light from a light emitting diode is expected to have the effect of producing collagen, so the effect of collagen production can be obtained at the same time as hair removal.

Further, according to the present embodiment, a plurality of light emitting diodes that irradiate light onto the skin surface are arranged, and the plurality of light emitting diodes include ones with different emission wavelengths (red LED 20 and yellow LED 21). . Since it is expected that the depth at which light reaches the inside of the skin differs depending on the emission wavelength, by irradiating light with multiple wavelengths, it is possible to obtain the effect of producing collagen with a width in the direction of the depth of the skin. Can be done.

<Other embodiments of the invention>
Note that the fan 65 may be placed between the right intake hole 9 and the radiator 52, or may be placed inside the exhaust hole 11 of the main body.

Further, the present invention is not limited to this embodiment, and can be modified as appropriate.

DESCRIPTION OF SYMBOLS 1... Optical hair removal device, 2... Main body front part, 3... Main body rear part, 4... Grip part, 5... Emission window part, 6... Translucent plate, 7... Touch sensor, 8... LED light emission part, 9... Right side Intake hole, 10...Left side intake hole, 11...Exhaust hole, 12...Display section, 13...Power button and output adjustment button, 14...Mode setting button, 15...Irradiation button, 16...Power cable connection part, 17...On the main body Cover, 18... Main unit lower cover, 20... Red LED (red light emitting diode), 21... Yellow LED (yellow light emitting diode), 22... LED board, 23... LED panel, 30... Power status display section, 31... LCD display section , 33...Fan operation display section, 34...Irradiation output level display section, 35...Remaining irradiation number display section, 40...Xenon lamp (light source for hair removal), 41...Xenon lamp fixed leg section, 42...Specular reflector, 43... Xenon lamp fixing substrate, 50... Output window forming frame, 51... Peltier element (cooling means), 52... radiator, 53... Optical filter, 54... Sealing frame member, 55... Optical filter fixing member, 56... Peltier element contact Surface, 57...Plate fin, 58...Gap, 59...First surface of the radiator, 60...Second surface of the radiator, 61...Back surface of the radiator, 62...Bottom surface of the radiator, 63...Substantially rectangular parallelepiped Space, 64... Sealed space, 65... Fan (ventilation means), 66... Electric board, 67... Charging/discharging capacitor for xenon lamp, 68... Heat absorption surface of Peltier element, 69... Heat generating surface of Peltier element, 70... Below ventilation path Cover, 71... Ventilation path cover, 72... Partition wall, 73... Exhaust passage forming plate, 74... Exhaust passage, 80... Button board, 81... Buzzer, 100... Electric circuit, 101... Control unit, 102... CPU, 103... ROM, 104...RAM, 106...Xenon lamp drive circuit, 108...LED drive circuit, 112...Peltier element drive circuit, 114...fan drive circuit, 116...LCD drive circuit, 118...power button/output adjustment button detection circuit, 120 ...Irradiation button detection circuit, 122...Mode setting button detection circuit, 124...Touch sensor drive circuit, 126...Buzzer drive circuit

Claims (6)

A photoremoval device that performs hair removal by irradiating the skin surface with pulsed light emitted by a hair removal light source placed inside the main body,
a cooling means for cooling a light-transmitting plate installed in an exit window section from which the pulsed light is emitted;
a radiator that is attached in contact with the cooling means and radiates heat from the cooling means;
an electric board on which an electric element including a drive circuit for the hair removal light source is mounted;
An optical hair removal device characterized by comprising: a blowing means for simultaneously air cooling the radiator and the electric board by airflow generated. 2. The optical hair removal device according to claim 1, wherein the blowing means air-cools the radiator with airflow that is drawn in, and cools the electric board with airflow that is blown out. The heat radiator has a structure in which a plurality of plate-like fins each having a substantially L-shape are formed in the thickness direction of the plate with gaps therebetween,
The airflow generated by the air blowing means passes through the first surface of the radiator formed by one of the two sides of the approximately L-shape of the plate-like fin, and then The optical hair removal device according to claim 1 or 2, wherein the light passes through a second surface of the radiator formed by the other side of the radiator. The hair removal light source is arranged in a substantially rectangular parallelepiped space formed by the first surface and the second surface of the radiator as two adjacent surfaces,
The airflow generated by the air blowing means air-cools the hair removal light source after passing through the first surface of the radiator, and then passes through the second surface of the radiator. The photoepilator according to claim 3. 3. The optical hair removal device according to claim 1, wherein a light emitting diode is disposed around the emission window, and the skin surface is irradiated with light emitted by the light emitting diode. 6. The optical hair removal device according to claim 5, wherein a plurality of said light emitting diodes are provided, and the plurality of light emitting diodes include those having different emission wavelengths.

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