Light hair removal device

Abstract

A light depilation device (1) has a housing (11) of a waterproof structure and a case (21) provided at least partially inside the housing (11). Inside the case (21) is provided a light emitting portion (31) having a light emitter (312) that emits light that irradiates a skin surface, a reflection plate (313) that covers from the back to the front of the light emitter (312) and reflects the light from the light emitter (312), and an optical filter (311) provided at a front end of the reflection plate (313) to transmit at least a part of the light from the light emitter (312) and the reflection plate (313). Also, inside the case (21) is provided a fan (32) that circulates air inside the case (21). With such a structure, it is possible to achieve waterproofing and cope with the high temperature of the light emitting portion (31).

Description

Technical Field

[0001] This invention relates to a photo-hair removal device that removes hair by irradiating the skin surface with light. Background Technology

[0002] A hair removal device is provided that removes hair by irradiating the skin surface with light. In these devices, hair removal is performed by irradiating the skin surface with laser or flash light; however, due to the heat generated by the light source, the temperature inside the device's housing rises. This heat is transferred to the outer periphery of the housing, sometimes causing the user's hands to feel hot when holding the device. Furthermore, the increased temperature inside the housing can sometimes lead to malfunctions such as component deterioration and a shortened lifespan of the device.

[0003] In Patent Document 1, as a countermeasure, it is described that a fan for cooling is provided to circulate the air inside the housing, and an air circulation hole is provided in the housing to supply external air into the housing to cool the housing.

[0004] Existing technical documents

[0005] Patent documents

[0006] Patent Document 1: Japanese Patent Application Publication No. 2015-139700 Summary of the Invention

[0007] The problem that the invention aims to solve

[0008] In cases of hair removal, since the skin needs to be exposed, hair removal devices are sometimes preferred to be used in the bathroom. Bathrooms are places where water is used, with water (hot water) in the bathtub and high humidity. Therefore, it is desirable for hair removal devices to be waterproof. However, as in Patent Document 1, it is difficult to create a waterproof structure in a design where holes are provided in the housing for cooling within the hair removal device.

[0009] In view of the above background, the present invention provides a means for waterproofing and dealing with the high temperature of the light-emitting part.

[0010] Methods for solving problems

[0011] To address the aforementioned issues, in one aspect, the present invention provides a phototherapy hair removal device comprising: a waterproof housing; a light-emitting unit having a light-emitting body that emits light toward a skin surface, a reflector that covers the light-emitting body from behind to the front and reflects the light from the light-emitting body, and an optical filter disposed at the front end of the reflector that allows at least a portion of the light from the light-emitting body and the reflector to pass through; a housing at least a portion of which is disposed within the housing and surrounds the light-emitting unit; and a fan disposed within the housing to circulate air within the housing.

[0012] According to this phototherapy hair removal device, by providing a shell surrounding the light-emitting part inside the housing, heat emitted from the light-emitting part can be prevented from being transferred to the housing that comes into contact with the user's hand. Furthermore, by using a fan to circulate air inside the shell, heat emitted from the light-emitting part can be dispersed into the shell. In other words, both waterproofing and cooling are achieved.

[0013] In a preferred embodiment, a slit may be provided on the front side of the reflector, such that the airflow generated by the fan flows along the side of the optical filter on which light from the light source and the reflector is incident.

[0014] According to this optical hair removal device, the high-temperature air in the space surrounded by the optical filter and reflector can escape into the space inside the outer shell, thereby suppressing the temperature rise of the optical filter.

[0015] In a preferred embodiment, in the first or second type of optical hair removal device, the optical hair removal device has a support member that supports the light-emitting part within the housing, and a slit is provided on the support member so that the airflow generated by the fan flows along the side of the optical filter.

[0016] According to this optical hair removal device, the high-temperature air near the side of the optical filter can escape into the space inside the housing, thereby suppressing the temperature rise of the optical filter.

[0017] In a preferred embodiment, the housing may have an illumination window for illuminating light from the light-emitting part, and a portion of the side of the housing on which the optical filter is provided may be in contact with the illumination window while maintaining a sealed state between the housing and the outer space relative to the space outside the housing.

[0018] According to this optical hair removal device, it is possible to maintain water resistance while exposing the optical filter to external gas.

[0019] In a preferred embodiment, at least a portion of the housing, including the optical filter, may be exposed to the outside of the housing, and this exposed portion of the housing may be waterproof.

[0020] According to this phototherapy hair removal device, it is possible to maintain water resistance even with part of the outer casing exposed. In addition, by circulating air inside the casing, heat emitted from the light-emitting part can be dispersed into the casing, thus suppressing the temperature rise of the exposed surface of the casing.

[0021] In a preferred embodiment, the photo-hair removal device may have a first heat dissipation component disposed on the outer periphery of the housing and dissipating heat from the inside of the housing to the outside, and the housing may also have a vent hole at a position corresponding to the location where the first heat dissipation component is disposed.

[0022] According to this optical hair removal device, heat emitted from the light-emitting part inside the shell can be dissipated to the outside of the shell, thus preventing the temperature of the shell from rising.

[0023] In a preferred embodiment, the phototherapy hair removal device may also have a sealing component arranged to surround the first heat dissipation component and the vent of the housing, thereby sealing the enclosed space relative to the space between the housing and the outer shell.

[0024] According to this light-based hair removal device, water that enters the housing through the vent can be prevented from entering other spaces inside the housing, thus maintaining its waterproof properties.

[0025] In a preferred embodiment, the phototherapy hair removal device may have a first heat dissipation component disposed on the outer periphery of the housing and dissipating heat from the inside of the housing to the outside. The housing has a recessed portion facing the outer periphery of the housing, and the first heat dissipation component is exposed on the bottom surface of the recessed portion.

[0026] According to this optical hair removal device, heat emitted from the light-emitting part inside the shell can be dissipated to the outside of the shell, thus preventing the temperature of the shell from rising.

[0027] In a preferred embodiment, the first heat dissipation component may be a radiator having fins that protrude toward the inner circumferential surface of the housing.

[0028] According to this optical hair removal device, the heat emitted from the light-emitting part inside the housing can be efficiently dissipated to the outside of the housing.

[0029] In a preferred embodiment, the phototherapy hair removal device may have a second heat dissipation component, which is disposed on the inner periphery of the housing at a position corresponding to the position where the first heat dissipation component is disposed, and dissipates heat from inside the housing to the outside.

[0030] According to this optical hair removal device, it is able to efficiently absorb the heat emitted from the light-emitting part inside the shell and dissipate heat to the outside of the shell.

[0031] In a preferred embodiment, the second heat dissipation component may be a radiator having fins that protrude toward the inner side of the housing.

[0032] According to this optical hair removal device, it is able to efficiently absorb the heat emitted from the light-emitting part inside the shell and dissipate heat to the outside of the shell.

[0033] In a preferred embodiment, the first heat dissipation component and the second heat dissipation component are integrally formed.

[0034] According to this optical hair removal device, it is able to efficiently absorb the heat emitted from the light-emitting part inside the shell and dissipate heat to the outside of the shell.

[0035] In a preferred embodiment, grooves with a cross-sectional shape protruding towards the base are formed between each fin. This improves the drainage of liquid that has intruded into the recess. Attached Figure Description

[0036] Figure 1 This is a diagram showing the appearance of the photo-hair removal device according to the first embodiment.

[0037] Figure 2 This is a diagram showing the internal structure of the photo-hair removal device according to the first embodiment.

[0038] Figure 3 This is a diagram showing the appearance of the housing of the photo-hair removal device according to the first embodiment.

[0039] Figure 4 This is a diagram showing the structure of the light-emitting part of the photo-hair removal device according to the first embodiment.

[0040] Figure 5 This is a cross-sectional view used to illustrate the airflow within the housing of the photo-hair removal device according to the first embodiment.

[0041] Figure 6 This is a diagram illustrating the airflow around the optical filter of the photo-hair removal device according to the first embodiment.

[0042] Figure 7 This is a diagram showing the appearance of the photo-hair removal device according to the second embodiment.

[0043] Figure 8 This is a cross-sectional view showing the structure inside the housing of the photo-hair removal device according to the second embodiment.

[0044] Figure 9 This is a perspective view showing the structure of the heat sink of the photo-hair removal device according to the second embodiment.

[0045] Figure 10 This is a cross-sectional view showing the structure inside the housing of the photo-hair removal device of the first modified example.

[0046] Figure 11 This is a cross-sectional view showing the structure inside the housing of the photo-hair removal device of the second modified example.

[0047] Figure 12 This is a perspective view showing the structure of the heat sink of the photo-hair removal device in the second modified example.

[0048] Figure 13 This is a perspective view showing the structure of the heat sink of the photo-hair removal device in the second modified example. Detailed Implementation

[0049] [First Implementation]

[0050] Hereinafter, the photo-hair removal apparatus 1 according to the first embodiment of the present invention will be described.

[0051] Figure 1 This diagram shows the appearance of the phototherapy hair removal device 1. The housing 11 is waterproof, preventing water from entering the interior of the housing 11 from the outside. A skin guide surface 12 is formed on the upper side of the housing 11, which the user brings into contact with the area to be treated while holding the phototherapy hair removal device 1.

[0052] An illumination window 13 is formed on the skin guiding surface 12 as an opening. The illumination window 13 is provided to allow light from the light-emitting part (described later) to illuminate the outside of the housing 11. As described later, the illumination window 13 contacts the optical filter on the inside side of the housing 11 to maintain the waterproofness of the inside of the housing 11.

[0053] The housing 11 is equipped with a display unit 14 and a switch 15. The display unit 14 is a liquid crystal display or similar device that displays the current operating status and other information. The switch 15 is a user-operated switch that controls the power supply, specifies the operation content, and provides other indications.

[0054] like Figure 1 As shown, the housing 11 is shaped such that the outer periphery of the lower side is shorter (i.e., thinner) than that of the upper side. The user holds the phototherapy hair removal device 1 by grasping the holding part 16, which is the lower side. Then, the user uses the phototherapy hair removal device 1 by holding it so that the skin guide surface 12 is in contact with the skin surface and the irradiation window 13 is facing the skin surface.

[0055] It should be noted that the "waterproof" in this instruction manual does not need to be "completely waterproof" that completely prevents water from penetrating. It can also be a simple waterproof function such as "waterproof for daily life" or "protection for everyday life". However, it is preferred to have a waterproof function of level 4 or above under the JIS waterproof protection rating.

[0056] Figure 2 This diagram shows the internal structure of the photo-hair removal device 1. Inside the housing 11 of the photo-hair removal device 1, there is a housing 21, an electronic component section 22, and a power supply section 23.

[0057] The housing 21 is a box-shaped body that contains a light-emitting unit 31 and a fan 32 inside, forming a sealed space. The light-emitting unit 31 is a component that generates light that is emitted to the outside through the illumination window 13, and an optical filter 311 is provided on the side where the light is emitted. At least a portion of the surface of the optical filter 311 is exposed to the outside through the illumination window 13, and the optical filter 311 forms part of the outer surface of the housing 21.

[0058] The electronic component unit 22 receives power from the power supply unit 23 and controls the light-emitting unit 31 to flash according to the operation of the switch 15. In addition, in parallel with the control of flashing light, the fan 32 inside the housing 21 is controlled to operate while the light is emitting light.

[0059] The power supply unit 23 is equipped with a rechargeable battery to supply power to the electronic components unit 22. A power port for charging is provided on the lower end face of the housing 11.

[0060] The outer casing 21, electronic component 22, and power supply 23 are fixed to the inner side of the housing 11 at multiple points by screws or the like. They do not contact the housing 11 except at these joints, and a space S1 is formed between the outer surface of the outer casing 21, electronic component 22, and power supply 23 and the inner surface of the housing 11.

[0061] A light guide plate 131 extending toward the inside of the housing 11 is provided in the illumination window 13 of the housing 11 in such a way as to surround the quadrilateral opening. The light guide plate 131 maintains the distance from the optical filter 311 to the skin guiding surface 12 and can prevent the skin from directly contacting the optical filter 311.

[0062] The front surface of the housing 21, on the side where the optical filter 311 is located, contacts and is fixed to the light guide plate 131. A sealing member, i.e. a gasket, is inserted between the front surface of the housing 21 and the inner end of the housing 11 of the light guide plate 131 to seal the gap generated at the contact portion.

[0063] Since the light guide plate 131 is sealed with a gasket between itself and the front surface of the housing 21, the space S1 inside the housing 11 remains sealed relative to the external space of the housing 11, thus maintaining the waterproof structure of the housing 11.

[0064] Figure 3 This is a diagram showing the appearance of the housing 21. On the front surface side of the housing 21, the optical filter 311 forming the light-emitting part 31 is exposed. An upper cover 211 is provided on the upper side, a lower cover 212 is provided on the lower side, and a side cover 213 is provided on the side, so as to surround the light-emitting part 31 containing the optical filter 311.

[0065] Figure 4This diagram shows the structure of the light-emitting part 31. The light-emitting part 31 is composed of an optical filter 311, a light-emitting element 312, and a reflector 313.

[0066] The light emitter 312, for example, uses a xenon tube to emit light that shines onto the skin surface. The reflector 313 is a semi-circular plate-shaped component with the light emitter 312 disposed on its inner circumference, extending from the rear side of the light emitter 312 (the side opposite to the side where the optical filter 311 is disposed) to the front side (the side where the optical filter 311 is disposed, i.e., the side emitting light). The inner circumference of the reflector 313 is mirror-finished to reflect light emitted from the light emitter 312 and received by the inner circumference of the reflector 313. The left and right sides of the reflector 313 are covered by planar side plates 314, the inner circumference of which are also mirror-finished to reflect light emitted from the light emitter 312 and received by the inner circumference of the side plates 314.

[0067] An optical filter 311 is disposed at the front end of the reflector 313. Light emitted from the light source 312 and light emitted from the light source 312 and reflected by the inner circumferential surface of the reflector 313 are incident on the optical filter 311. A portion of the light incident on the optical filter 311 is blocked, while the remainder is transmitted. The optical filter 311 is a filter formed of glass and has the function of allowing only light of wavelengths suitable for hair removal from the light source 312 to pass through (e.g., a UV blocking function to block harmful ultraviolet rays, etc.).

[0068] In addition, the optical filter 311 preferably has a function such as UV cut-off function that allows only specific wavelengths to pass through (or prevents specific wavelengths from passing through), but it may not have such a function, but is provided for the purpose of protecting the light source 312 and the reflector 313.

[0069] At the upper front end of the reflector 313, three cutouts are provided at three locations, forming three slits 313a, 313b, and 313c between the reflector and the optical filter 311. Additionally, at the lower front end of the reflector 313, three cutouts are also provided at three locations, forming three slits 313d, 313e, and 313f between the reflector and the optical filter 311. Furthermore, cutouts are also provided on the left and right side plates 314, forming slits 314a and 314b between them and the optical filter 311.

[0070] These slits are designed to allow air to circulate between the interior of the light-emitting part 31 and the space outside the light-emitting part 31 (the space inside the outer casing 21), thus preventing the temperature inside the light-emitting part 31 from becoming too high due to heat generated from the light-emitting body 312 during light emission.

[0071] Figure 5This is a cross-sectional view used to illustrate the airflow inside the housing 21. A fan 32 is provided behind the light-emitting part 31 inside the housing 21 (on the side opposite to the side emitting light). The fan 32 circulates air inside the housing 21 by rotating the light-emitting body 312 while it is emitting light.

[0072] To secure the light-emitting part 31 within the housing 21, a support member 41 is provided to support the light-emitting part 31. The support member 41 supports the light-emitting part 31 in a manner that covers its upper, lower, and left and right sides. Figure 5 The diagram shows only the upper and lower cross sections of the support member 41.

[0073] The surface of the optical filter 311, located at the front of the light-emitting part 31, is sealed with a gasket 51 between itself and the inner peripheral side of the front surface of the housing 21. The gasket 51 is formed in a rectangular shape surrounding the outer peripheral side of the surface of the optical filter 311. Figure 5 As shown, the cross-section of the gasket 51 is circular (or it can also be elliptical). In this way, by installing the gasket 51 between the inner circumference of the front side of the housing 21 and the surface of the optical filter 311, the internal space of the housing 21 can be sealed from the external space.

[0074] Air is generated inside the housing 21 by the airflow delivered by fan 32. Figure 5 The airflow indicated by the middle arrow. The airflow generated by the fan 32 and flowing forward within the housing 21 from the side of the fan 32 is divided into upward and downward airflows upon collision with the light-emitting part 31 or the support member 41. Furthermore, the upward airflow is divided into airflow AHI flowing along the upper outer peripheral surface of the reflector 313 and the upper inner peripheral surface of the support member 41, and airflow AHS flowing along the upper surface of the support member 41 and the upper inner peripheral surface of the housing 21. The downward airflow is divided into airflow ALI flowing along the lower outer peripheral surface of the reflector 313 and the lower inner peripheral surface of the support member 41, and airflow ALS flowing along the lower surface of the support member 41 and the lower inner peripheral surface of the housing 21.

[0075] The airflows AHS and ALS will be described later. Airflow AHI flows into the space inside the light-emitting part 31 from the upper slits 313a to 313c of the reflector 313. Airflow ALI flows into the space inside the light-emitting part 31 from the lower slits 313d to 313f of the reflector 313. Airflow AHI travels along the back side of the optical filter 311 (the side from which light from the light-emitting body 312 and the reflector 313 is incident) within the light-emitting part 31. Figure 5 The airflow ALI flows downwards within the light-emitting section 31 along the back surface of the optical filter 311. Figure 5 It flows upwards.

[0076] The airflow AHI and airflow ALI collide and mix, mainly generating airflow flowing towards the rear (light-emitting body 312 side) of the space within the light-emitting part 31 and airflow flowing to the left and right ( Figure 4 The airflow flows from the left and right side panels 314. The airflow flowing to the left and right flows out from the slits 314a and 314b of the side panels 314 to the outside of the light-emitting part 31, and flows towards the fan 32 in the space inside the outer casing 21.

[0077] The temperature inside the housing 21 rises due to the heat generated by the light-emitting element 312. Consequently, the optical filter 311, which receives light from the light-emitting element 312, becomes hot, and the temperature of the air near the optical filter 311 rises. As described above, the airflows AHI and ALI flowing in from the slits 313a to 313f flow on the back side of the optical filter 311, thereby circulating the air near the back side of the optical filter 311 and suppressing the temperature rise of the optical filter 311.

[0078] As described above, air circulates within the space of the outer casing 21, including the interior of the light-emitting part 31, through the airflow from the fan 32. The space within the outer casing 21 is sealed relative to the space S1 within the housing 11. Therefore, even if the space within the outer casing 21 becomes hot, the hot air will hardly flow out into the space S1 within the housing 11, and the temperature of the space S1 within the housing 11 is difficult to rise. Consequently, the surface temperature of the housing 11 is also difficult to rise.

[0079] In this way, heat generated in the light-emitting part 31 can be suppressed from being conducted to the housing 11, thus suppressing the temperature rise of the surface of the housing 11. Therefore, even when the user is holding the light hair removal device 1 and performing the light-emitting action from the light-emitting part 31, the surface of the housing 11 will not become overheated, allowing the user to use it comfortably.

[0080] In addition, the temperature of the air inside the housing 21 rises during use, but by using the airflow of the fan 32 to circulate the air inside the housing 21, the temperature rise of the optical filter 311, the light emitter 312, and the reflector 313 can be suppressed, and the components constituting the light-emitting part 31 are less likely to be obstructed during the user's use time (about 10 minutes).

[0081] Figure 6 This is a diagram used to illustrate the airflow around the optical filter 311. Figure 6 Showing from Figure 3 The outer casing 21 shown is in a state where the upper cover 211, lower cover 212, and side cover 213 have been removed. The support member 41 supports the light-emitting part 31 in a manner that covers the upper, lower, left, and right sides of the light-emitting part 31. The outer peripheral side of the support member 41 is fixed to the inner surface of the outer casing 21.

[0082] Protruding walls 411 and 412 are provided on the upper part of the support member 41, and three slits 413a, 413b, and 413c are formed between the upper surface of the support member 41 and the upper cover 211. Protruding walls 414 and 415 are provided on the lower part of the support member 41, and three slits 416a, 416b, and 416c are formed between the lower surface of the support member 41 and the lower cover 212. In addition, ventilation passages 417a and 417b are formed on the left and right sides of the support member 41, respectively communicating with the slits 314a and 314b formed on the side plate 314 of the light-emitting part 31.

[0083] The spaces formed by seams 413a, 413b, 413c, 416a, 416b, 416c, and the spaces formed by ventilation paths 417a, 417b all extend towards the rear of the support member 41 and communicate with the space inside the outer casing 21. That is, the airflow generated by the fan 32 also enters and exits relative to seams 413a, 413b, 413c, 416a, 416b, 416c, and ventilation paths 417a, 417b.

[0084] pass Figure 5 The airflow AHS, delivered by the fan 32, flows into the three slits 413a, 413b, and 413c at the top of the support member 41. Similarly, the airflow ALS flows into the three slits 416a, 416b, and 416c at the bottom of the support member 41.

[0085] The front surface of the optical filter 311 (the surface opposite to the side of the light emitter 312) contacts the inner circumferential side of the front surface of the housing 21 via the gasket 51 and is sealed by the gasket 51. Therefore, the airflow flowing in from the slits 413a, 413b, 413c, 416a, 416b, and 416c does not flow toward the front side of the optical filter 311.

[0086] exist Figure 6 In the middle, the airflow passing through the central slots 413b and 416b formed in the upper and lower parts of the support member 41 flows separately in the left and right directions. Figure 6 In the process, the airflow flowing to the left through slit 413b merges with the airflow flowing through slit 413a, flows along the side of the optical filter 311, and exits from the ventilation path 417a as airflow AHSa. The airflow flowing to the right through slit 413b merges with the airflow flowing through slit 413c, flows along the side of the optical filter 311, and exits from the ventilation path 417b as airflow AHSb.

[0087] Similarly, the airflow flowing to the left through slit 416b merges with the airflow flowing through slit 416a, flows along the side of the optical filter 311, and exits from the ventilation path 417a as airflow ALSa. The airflow flowing to the right through slit 416b merges with the airflow flowing through slit 416c, flows along the side of the optical filter 311, and exits from the ventilation path 417b as airflow AHLb.

[0088] exist Figure 6 In the text, airflows AHIa, AHIb, ALIa, and ALIb represent... Figure 5 The airflows AHI and ALI shown are separated and pass through each other. Figure 4 The airflow at slits 313a to 313f is shown. (Example) Figure 5 As shown, these airflows flow along the back of the optical filter 311.

[0089] The airflows exiting from the centrally located slits 313b and 313e in slits 313a to 313f flow downwards and upwards along the back of the optical filter 311, respectively. The two airflows collide with each other and separate in the left-right direction.

[0090] The airflows flowing to the left from slits 313b and 313e merge with the airflows flowing downward and upward along the back of the optical filter 311 through slits 313a and 313d, respectively, and flow out from slit 314a through ventilation path 417a as airflows AHIa and ALIa.

[0091] The airflows flowing to the right from slits 313b and 313e merge with the airflows flowing downward and upward along the back of the optical filter 311 through slits 313c and 313f, respectively, and flow out from slit 314b through ventilation path 417b as airflows AHIb and ALIb.

[0092] The airflows AHSa, ALSa, AHIa, and ALIa flowing out of ventilation passage 417a, and the airflows AHSb, ALSb, AHIb, and ALIb flowing out of ventilation passage 417b, are related to... Figure 6 The left and right side covers 213 (not shown in the figure) Figure 3 It collides and flows into the rear space inside the outer shell 21.

[0093] As described above, the airflow flowing in from slits 413a, 413b, 413c, 416a, 416b, and 416c and flowing along the side of the optical filter 311, and the airflow flowing in from slits 313a to 313f and flowing along the back of the optical filter 311, flow out through ventilation passages 417a and 417b to the outside of the light-emitting part 31 and circulate into the space inside the housing 21.

[0094] By generating such an airflow, air can be moved near the sides and back of the optical filter 311, thus suppressing the temperature rise of the optical filter 311. The optical filter 311 is a component that is maintained at a distance from the skin guide surface 12 by the light guide plate 131, but is close to the skin surface during use. Therefore, by suppressing the temperature rise during use, it is possible to prevent the user from feeling heat on their skin.

[0095] In this embodiment, three slits are provided on the upper and lower sides of the reflector 313, so the airflows AHI and ALI are each divided by three slits, allowing the airflow to flow evenly on the back side of the optical filter 311. Since the glass optical filter 311 is susceptible to breakage due to uneven temperature distribution, it is preferable to allow the airflow to flow evenly within the surface for uniform cooling. In this embodiment, the slit configuration described above facilitates uniform airflow and prevents breakage of the optical filter 311.

[0096] Furthermore, in this embodiment, since three slits are provided on the upper and lower parts of the support member 41 respectively, the airflows AHS and ALS are divided by the three slits, making it easy to separate them evenly from left to right. Therefore, the airflow can easily flow evenly to the side of the optical filter 311. Thus, it is possible to prevent the temperature distribution on the side of the optical filter 311 from becoming uneven, and to prevent damage to the optical filter 311.

[0097] Furthermore, by circulating air within the outer casing 21, the heat generated from the light-emitting part 31 circulates within the space of the outer casing 21, thus suppressing the temperature rise within the space of the light-emitting part 31. The larger the volume of the space within the outer casing 21, the greater the effect of suppressing the temperature rise within the space; the larger the volume of the space within the outer casing 21 relative to the volume of the space within the light-emitting part 31, the greater the effect of suppressing the temperature rise within the space of the light-emitting part 31.

[0098] Therefore, the volume ratio of the space inside the light-emitting part 31 to the volume ratio of the space inside the outer casing 21 is preferably about 1:10 to 1:15. On the other hand, considering the portability of the device, it is preferable to minimize the volume of the outer casing 21 as much as possible in order to achieve miniaturization. Therefore, the volume ratio of the space inside the light-emitting part 31 to the volume ratio of the space inside the outer casing 21 can also be about 1:5 to 1:13.

[0099] In addition, in order to suppress the temperature rise in the space inside the light-emitting part 31, in addition to the volume ratio mentioned above, the airflow velocity inside the fan 32 and the housing 21 is preferably considered. Therefore, it is preferable to adjust the airflow of the fan 32 and the airflow velocity based on the heat generated and volume inside the space in a way that can suppress the temperature rise.

[0100] The heat generated in the light-emitting part 31 also affects the temperature of the air in the space S1 inside the housing 11. The housing 11 is a waterproof structure and is sealed relative to the outside air, so that outside air cannot be introduced into the space S1 inside the housing 11. As in this embodiment, by providing an outer shell 21 inside the housing 11 and providing the light-emitting part 31 inside the outer shell 21, the effect of the temperature rise based on the light-emitting part 31 can be kept inside the outer shell 21.

[0101] According to this embodiment, the heat generated in the light-emitting part 31 is unlikely to affect the space S1 inside the housing 11, and the temperature of the space S1 inside the housing 11 is unlikely to rise. Therefore, the temperature of the housing 11 is also unlikely to rise, and the user holding the housing 11 will hardly feel the heat. In addition, the degradation of components caused by the temperature rise inside the housing due to heat generation can be suppressed, and product failure and shortened lifespan can be prevented.

[0102] Furthermore, according to this embodiment, the effect of temperature rise caused by heat generation can be reduced without suppressing the output of the light-emitting element 312 (e.g., a xenon tube) of the light-emitting section 31. While suppressing the output of the light-emitting element 312 can suppress heat generation, it is preferable to emit the light-emitting element 312 at a relatively high output to achieve a hair removal effect. According to this embodiment, the effect of heat generation can be suppressed without reducing the hair removal effect.

[0103] Furthermore, by placing the fan 32 inside the sealed housing 21, the sound generated by the drive of the fan 32 is difficult to leak out of the housing 21, thus improving the quietness of the device.

[0104] In addition, in this embodiment, the air blowing action of the fan 32 is initiated in conjunction with the start of light emission of the light-emitting body 312 (start of hair removal process) by the user operating the switch 15, and is stopped in conjunction with the stop of light emission of the light-emitting body 312 (end of hair removal process) by the operation of the switch 15.

[0105] [Second Implementation]

[0106] The photo-hair removal apparatus 1A according to the second embodiment of the present invention will be described below.

[0107] Figure 7 This is a diagram showing the appearance of the photo-hair removal device 1A. In this embodiment, a portion of the outer casing 21A is connected to the housing 11A to form part of the external shape. Figure 7 This shows the state where the outer casing 21A has been removed from the housing 11A. By connecting the housing 11A to the outer casing 21A, the outer casing 21A... Figure 7The rear portion of the outer casing 21A is inserted into the housing 11A, while the front portion is exposed at the front of the housing 11A. Hereinafter, the portion of the outer casing 21A that is exposed in shape will be referred to as the outer casing portion 215, and the portion of the rear portion located inside the housing 11A will be referred to as the outer casing insert portion 216. The outer casing portion 215 has the same skin guide surface 12 and irradiation window portion 13 as the housing 11 of the first embodiment.

[0108] A radiator 61, serving as a heat dissipation component, is provided on the outer peripheral surface of the inner insert portion 216 of the outer casing. A groove is formed around the radiator 61, and a gasket 62, serving as a sealing component, is installed in the groove. The gasket 62 surrounds the radiator 61 and is shaped to protrude toward the inner peripheral surface of the casing 11A.

[0109] A vent 18 is provided in the housing 11A. Furthermore, the housing 11A, like the housing 11 of the first embodiment, has a gripping portion 16, although... Figure 7 Not shown in the figure, but a display unit 14 and a switch 15 are provided on the side opposite to the side where the vent 18 is provided. The vent 18 is constructed, for example, by arranging a plurality of elongated openings formed along the long side of the housing 11A in the short side direction.

[0110] Figure 8 This is a cross-sectional view showing the internal structure of the housing 11A and the outer casing 21A of the phototherapy hair removal device 1A. Figure 8 In the middle, it is marked with Figure 5 Components with the same designation are... Figure 5 For components that are identical to those described, the description is omitted. Figure 8 Shown in Figure 7 The middle housing 11A is installed on the outer housing 21A and covers the inner insertion portion 216 of the outer housing 21A, which is the normal use state. For example... Figure 8 As shown, the vent 18 of the housing 11A is positioned to correspond to the position of the heat sink 61 located on the outer peripheral surface of the inner insert 216 of the housing. That is, the vent 18 and the heat sink 61 are positioned opposite each other.

[0111] The gasket 62 is provided to surround the heat dissipation portion of the radiator 61. Furthermore, the gasket 62 extends from the radiator 61 side towards the inner circumferential surface of the housing 11A, with its end on the housing 11A side in close contact with the inner circumferential surface of the housing 11A, thus sealing the inner space of the gasket 62 relative to the other spaces S1 within the housing 11A. Additionally, the end of the gasket 62 that is in close contact with the inner circumferential surface of the housing 11A surrounds the area on the inner circumferential surface of the housing 11A where the vent hole 18 is provided.

[0112] A gasket 71 is provided at the connection between the housing 11A and the outer casing 21A. In this connection, the front end of the housing 11A covers the rear end of the outer casing portion 215 of the outer casing 21A, and the gasket 71 is installed and sealed in the gap between the inner circumferential surface of the housing 11A and the outer circumferential surface of the outer casing portion 215. The gasket 71 is formed in an elliptical shape surrounding the outer circumference of the outer casing portion 215 and the inner circumference of the housing 11A. Figure 8 As shown, the cross-sectional shape of the pad 71 is circular (or it can also be elliptical). In this way, by installing the pad 71 at the connecting part, the space S1 inside the housing 11A is sealed relative to the external space of the photo-hair removal device 1A.

[0113] The housing 11A is waterproof, ensuring that water will not enter the interior of the housing 11A even when the laser hair removal device 1A is used in a bathroom or similar environment. However, water can enter the interior of the housing 11A through the vent 18. Therefore, the space containing the radiator 61 and the vent 18 is sealed by the gasket 62, preventing water entering through the vent 18 from entering other spaces S1 within the housing 11A.

[0114] Furthermore, in this embodiment, the outer shell portion 215 of the outer shell 21A forms part of the overall shape of the optical hair removal device 1A, that is, it is exposed to the outside. Therefore, at least the outer shell portion 215 of the outer shell 21A is also formed as a waterproof structure like the outer shell 11A. A gasket 51 is provided between the optical filter 311 and the inner peripheral side of the front surface of the outer shell 21A, so it is sealed relative to the outside and maintains waterproofness.

[0115] The radiator 61 is a heat dissipation component used to cool the interior of the housing 21A by absorbing heat generated inside the housing 21A and dissipating it to the outside of the housing 21A. The radiator 61 is made of copper, iron, aluminum, or other materials with high thermal conductivity.

[0116] Figure 9 This is a perspective view showing the structure of the radiator 61. The radiator 61 consists of a flat body 611 and a plurality of fins 612 protruding from the body 611. A groove 613 for mounting gaskets 62 is provided around the body 611.

[0117] The main body 611 is mounted on the outer peripheral surface of the outer casing 21A. The fins 612 are provided with multiple protrusions that project from the main body 611 mounted on the outer casing 21A toward the inner peripheral surface of the casing 11A. The fins 612 are configured to have a wider surface area to improve heat dissipation efficiency.

[0118] With this structure, the radiator 61 can absorb the heat generated inside the outer casing 21A on the side of the outer casing 21 of the main body 611, and dissipate the heat to the space surrounded by the gasket 62 via the fins 612. Moreover, the dissipated heat can escape to the outside of the casing 11A through the vent 18.

[0119] The radiator 61 can also be disposed on the outer peripheral surface of the housing 21A, or an opening can be formed in the housing 21A for mounting the main body 611 of the radiator 61, and the main body 611 of the radiator 61 can be mounted through this opening. In this case, a gasket is installed in the gap between the edge of the opening in the housing 21A and the main body 611 of the radiator 61, and the gap between the opening and the main body 611 is sealed. By adopting such a structure, the main body 611 of the radiator 61 comes into contact with the air inside the housing 21A, thereby improving the heat dissipation efficiency of heat generated inside the housing 21A.

[0120] The root portion of fin 612, i.e., the boundary portion with the main body 611, has a curved surface 612a protruding towards the main body 611 (towards the base). In other words, grooves with curved cross-sections (e.g., U-shaped, parabolic, etc.) are formed between each fin. Here, as described above, water sometimes enters through the vent 18. Figure 8 Although the space surrounded by the gasket 62 is protected by the gasket, from the viewpoint of hygiene and ensuring the operation of the equipment, it is not preferable for water or other liquids to enter the housing. From this point of view, by forming such a curved surface 612a, even if water or other liquids enter the space, the groove will promote the drainage of the liquid, making it difficult for it to accumulate between the fins 612.

[0121] Furthermore, the groove 613 can also be inclined along the direction of groove extension with the end lower than the center. As a result, the liquid discharge effect is further improved.

[0122] The photo-hair removal device according to the second embodiment described above can achieve the same effect as the photo-hair removal device of the first embodiment described above. Regarding the effect of the space S1 inside the housing 11 being difficult to rise in the first embodiment, and the temperature of the housing 11 being difficult to rise, in the second embodiment, by providing vents and a heat sink, the temperature of the housing 11 is made even more difficult to rise.

[0123] [Variation Example]

[0124] The above-described embodiments (first embodiment and second embodiment) can be modified in various ways. Examples of their modifications are shown below. Furthermore, the above-described embodiments and the modifications shown below can also be appropriately combined.

[0125] (1) In the above embodiment, the power supply for the photo-hair removal device 1 is a rechargeable battery, but the power supply method is not limited to a rechargeable battery, and may also be an external power source or a dry cell battery. However, considering its use in the bathroom, etc., it is preferable to use a battery such as a rechargeable battery or a dry cell battery.

[0126] (2) In the above embodiments, the light irradiated on the skin is set to flash light by a light-emitting body, but it can also be set to irradiate the laser with a laser light source or to use an LED (light-emitting diode) as a light source.

[0127] (3) In the above embodiment, the opening of the illumination window 13 provided in the housing 11 is a quadrilateral shape, but it can also be other shapes, such as a polygonal shape, a circle, an ellipse, or other shapes surrounded by curves.

[0128] (4) In the above embodiment, the reflector 313 of the light-emitting part 31 is a semi-circular plate-shaped component, but it can also be made of other shapes as long as it can reflect the light from the light-emitting body 312 toward the optical filter 311 side.

[0129] (5) In the above-described embodiments, such as Figure 5 As shown, inside the housing 21, the fan 32 is located behind the light-emitting part 31 (on the side opposite to the side that emits light), but it is not limited to this as long as it can circulate the air inside the housing 21 and the light-emitting part 31. For example, it can also be located above or below the light-emitting part 31.

[0130] (6) In the above embodiment, at least a portion of the surface of the optical filter 311 is exposed to the outside through the illumination window 13 of the housing 11. However, it may also be configured such that transparent glass or a heat-resistant transparent material is superimposed on the surface of the optical filter 311, and the surface of the optical filter 311 is not exposed to the outside. In this case, in order to suppress the temperature rise of the optical filter 311 during the use of the photo-hair removal device 1, the airflow generation structure in the above embodiment also functions effectively.

[0131] (7) In the above embodiment, in order to make the airflow near the optical filter 311 flow easily and evenly, three slits are provided on the upper and lower sides of the reflector 313, and three slits are provided on the upper and lower parts of the support member 41, but the number and arrangement of the slits are not limited.

[0132] The number and arrangement of the slits can be appropriately changed according to the size and shape of the illumination window 13 and the reflector 313. For example, if the opening of the illumination window 13 is large, and the optical filter 311 also uses an optical filter with a large surface area, then four or more slits can be provided on the upper and lower parts of the reflector 313 and the support member 41 respectively. In addition, the number and arrangement of the slits can be appropriately changed according to the size (width) of the slits. For example, if the width of the slits is reduced, the number of slits can be set to four or more.

[0133] (8) In the second embodiment described above, by providing a vent hole 18 in the housing 11A, the heat generated inside the housing 21A is dissipated to the outside via the heat sink 61. However, instead of the vent hole 18, a recess is provided in the housing 11A that is recessed from the surface of the housing 11A, so that the heat sink 61 is exposed from the bottom surface of the recess.

[0134] Figure 10 This is a cross-sectional view showing the structure within the housing 11B of the photo-hair removal device 1A in the first modified example. Figure 10 In the middle, it is marked with Figure 8 Components with the same designation are... Figure 8 For components that are identical to those described, the description is omitted.

[0135] Figure 10 The shell 11B in the middle and Figure 8 The difference in the casing 11A is that, Figure 8 A vent 18 is provided in the housing 11A, and a recess 19 is provided in the housing 11B. The recess 19 is located at the position of... Figure 7 The same area of ​​the housing 11A in which the vent 18 is provided has a recessed area, for example, rectangular or circular in shape.

[0136] exist Figure 10 In the recess 19 formed in the housing 11B, the side portion 19a extends toward the radiator 61 disposed in the housing 21A. The bottom surface of the recess 19 is open, exposing the heat dissipation surface of the radiator 61. A gasket 69 is installed at the end of the side portion 19a on the radiator 61 side. The gasket 69 is installed in the groove 613 of the radiator 61. Figure 9 The end of the side portion 19a is sealed to the surface of the heat sink 61 using a gasket 69. That is, the internal space of the recess 19 is sealed relative to the internal space S1 of the housing 11B.

[0137] The housing 11B is waterproof, preventing water from entering the interior of the housing 11B from the outside. Although water enters the recess 19 of the housing 11B, the space containing the radiator 61 and the recess 19 is sealed by the gasket 69, preventing the water entering the recess 19 from entering the space S1 inside the housing 11B.

[0138] (9) In the second embodiment described above, the heat sink 61 is disposed on the outer peripheral surface of the housing 21A, but the heat sink may also be disposed on the inner side of the housing 21A in addition to being disposed on the outer peripheral surface of the housing 21A.

[0139] Figure 11 This is a cross-sectional view showing the structure within the housing 11A of the photo-hair removal device 1A in the second modified example. Figure 11 In the middle, it is marked with Figure 8 Components with the same designation are... Figure 8 For components that are identical to those described, the description is omitted.

[0140] exist Figure 11 In China, Figure 8 The structure includes an additional heat sink 65. The heat sink 65 is disposed on the inner peripheral surface of the outer casing 21A. The position of the inner peripheral surface where the heat sink 65 is disposed corresponds to the position of the outer peripheral surface where the heat sink 61 is disposed. That is, the heat sink 65 is disposed on the inside side of the outer peripheral surface of the outer casing 21A where the heat sink 61 is disposed.

[0141] Figure 12 This is a perspective view showing the structure of the radiator 65. The radiator 65 consists of a flat body 651 and a plurality of fins 652 protruding from the body 651.

[0142] The main body 651 is mounted on the inner peripheral surface of the outer casing 21A. Fins 652 are provided such that they protrude from the main body 651 mounted on the outer casing 21A toward the inner side of the outer casing 21A. The fins 652 absorb heat generated inside the outer casing 21A. By providing fins 652, the surface area is increased, thereby improving the efficiency of heat absorption.

[0143] Fin 652 is configured so that its length direction is along the direction of arrow B. For example... Figure 11 As shown, arrow B points in the direction of airflow within the housing 21A generated by fan 32. That is, the heat sink 65 is positioned in the direction in which air flows along the grooves of the fins 652. This configuration improves the heat dissipation performance of the fins 652.

[0144] Heat absorbed by fins 652 is dissipated from the main body 651 to the inner peripheral surface of the outer casing 21A. Heat transferred from the inner peripheral surface of the outer casing 21A to the outer peripheral surface is absorbed by the main body 611 of the radiator 61 and dissipated from the fins 612. Furthermore, the dissipated heat can escape to the outside of the casing 11A through the vent 18.

[0145] As described above, by providing a heat sink 65 on the inner circumferential surface of the outer casing 21, the efficiency of heat dissipation from the interior of the outer casing 21A to the exterior of the outer casing 11A can be improved.

[0146] (10) In the second variation above, two heat sinks 61 and 65 are provided, but the two heat sinks 61 and 65 can also be formed as a single component.

[0147] Figure 13 This is a perspective view showing the structure of the radiator 67 in the third modified example.

[0148] The radiator 67 is composed of a main body 671, fins 672 protruding downward from the main body 671, and fins 673 protruding upward from the main body 671 (on the side opposite to the side where the fins 672 are provided).

[0149] Fin 672 and Figure 9 The fins shown are the same as fin 612, although in Figure 13 Not shown in the diagram, but the root portion of fin 672, i.e., the boundary portion with the main body 671, forms a shape that is consistent with... Figure 9 The curved surface 612a is the same as the curved surface. Fin 673 and... Figure 12 The fin shown is the same as 652.

[0150] Grooves 674 are formed on the sides surrounding the main body 671. Sealing gaskets are installed in the grooves 674. Around the bottom surface of the main body 671 (the surface where the fins 672 are located), a groove is formed... Figure 9 The same groove as shown in groove 613.

[0151] The radiator 67 is installed in the same position as the radiators 61 and 65. Specifically, the fins 672 are installed on the outside of the housing 21, and the fins 673 are installed on the inside of the housing 21. For this installation of the radiator 67, an opening is formed in the housing 21 for mounting the main body 671 of the radiator 67.

[0152] A gasket is installed between the edge of the opening of the outer casing 21 and the groove 674 of the main body 671 of the radiator 67, sealing the gap between the opening and the main body 671. The bottom surface (the surface where the fins 672 are provided) of the main body 671 of the radiator 67 is sealed to the inner circumferential surface of the casing 11A. Figure 11 The structure shown is similarly sealed by padding 62.

[0153] According to the structure described above, the fins 673 of the radiator 67 located inside the housing 21 absorb the heat generated inside the housing 21, and dissipate the heat through the fins 672 of the radiator 67 located outside the housing 21. Furthermore, the dissipated heat can escape to the outside of the housing 11A through the vent 18. Additionally, for at least the fins 672 in the radiator 67, it is preferable to use a material with high corrosion resistance, or to perform a surface treatment for rust prevention.

[0154] The radiator 67 is a component that integrally forms a main body 671, fins 672, and fins 673. Therefore, compared with the radiators 61 and 67, which are composed of two components via the outer and inner peripheral surfaces of the outer casing 21 as described in the second modified example above, the efficiency of heat conduction from the inside to the outside of the outer casing 21 can be improved, so that the heat generated inside the outer casing 21 can be efficiently dissipated to the outside.

[0155] (11) In the above-described second embodiment, first modification, and second modification, as follows: Figure 8 , Figure 10 , Figure 11 As shown, the fan 32 is positioned near the upper inner circumferential surface inside the housing 21, and the heat sink is positioned on the lower inner circumferential surface of the housing 21 (i.e., the inner circumferential surface opposite to the inner circumferential surface near the side where the fan 32 is located) or the outer circumferential surface, but the positional relationship between the fan 32 and the heat sink is not limited to this.

[0156] In the second embodiment ( Figure 8 ), first variation ( Figure 10 In, for example, the fan 32 can also be positioned near the inner circumferential surface below the housing 21 (i.e., the inner circumferential surface corresponding to the inner side of the outer circumferential surface where the heat sink 61 is located). In the second modification ( Figure 11 Alternatively, the fan 32 can be positioned near the top of the heat sink 65 (i.e., near the front end of the fins 652 of the heat sink 65). In this way, by positioning the fan 32 near the heat sink, the efficiency of dissipating heat generated inside the casing 21 to the outside can be improved.

[0157] (12) In the above embodiments, such as Figure 5 , Figure 8 As shown, the airflow generated by fan 32 flows from the side of fan 32 towards the front of housing 21, but the airflow can also flow from fan 32 in other directions. By appropriately changing the orientation of the blades constituting fan 32 and the shape of the air intake and exhaust ports, the airflow within housing 21 can be controlled. For example, in… Figure 5 , Figure 8 When the airflow in the fan 32 flows downward, airflow is also generated in the direction to the right of the downward airflow from the fan 32. However, most of this airflow collides with the right side of the casing 21 and flows forward. Therefore, as a result, most of the airflow from the fan 32 flows forward towards the casing 21.

[0158] (13) In the second embodiment described above, the front side of the outer shell 21A is exposed to the outside of the housing 11A, but it can also be configured in the same way as the first embodiment, with the outer shell 21A entirely inside the housing 11A.

[0159] Label Explanation

[0160] 1, 1A: Photoremoval device; 11, 11A, 11B: Housing; 12: Skin guiding surface; 13: Irradiation window; 14: Display unit; 15: Switch; 16: Handling unit; 18: Vent hole; 19: Recess; 19a: Side; 21, 21A: Outer shell; 22: Electronic component unit; 23: Power supply unit; 31: Light-emitting unit; 32: Fan; 41: Supporting component; 51: Pad; 61: Heat sink; 62: Pad; 65, 67: Heat sink; 69: Pad; 71: Pad; 215: Outer shell housing; 216: Inner shell insertion part; 131: Light guide plate; 211: Upper cover; 212: Lower cover; 213: Side cover; 311: Optical filter; 312: Light-emitting part Body; 313: Reflector; 313a~313f: Slit; 314: Side plate; 314a, 314b: Slit; 411, 412: Protruding wall; 413a, 413b, 413c: Slit; 414, 415: Protruding wall; 416a, 416b, 416c: Slit; 417a, 417b: Ventilation path; 611: Main body; 612: Fin; 612a: Curved surface; 613: Groove; 651: Main body; 652: Fin; 671: Main body; 672, 673: Fin; 674: Groove; AHS, AHSa, AHSb, ALS, ALSa, ALSb, AHI, AHIa, AHIb, ALIa, ALIb: Airflow.

Claims

1. A phototherapy hair removal device, comprising: A waterproof casing; The light-emitting part includes a light-emitting body that emits light that shines onto the skin surface, a reflector that covers the light-emitting body from the rear to the front and reflects the light from the light-emitting body, and an optical filter disposed at the front end of the reflector that allows at least a portion of the light from the light-emitting body and the reflector to pass through. A housing, at least a portion of which is disposed within the housing and surrounds the light-emitting part, wherein a portion of the outer surface of the housing is formed by the front surface of the optical filter; A fan is located behind the light-emitting part inside the housing to circulate air inside the housing; as well as A slotted structure is used to guide the airflow generated by the fan in a manner that allows it to flow along the back and sides of the optical filter. The light-emitting part has side plates covering the left and right sides of the reflector. The slit structure has cutouts at the upper and lower front ends of the reflector, as well as on the left and right side plates. The phototherapy hair removal device has a support component that supports the light-emitting part within the housing. The support member supports the light-emitting part in a manner that covers the upper, lower, and left and right sides of the reflector but does not cover the rear side of the reflector. A slotted structure is formed between the upper and lower surfaces of the support member and the outer shell, and ventilation passages are formed on the left and right sides of the support member, respectively communicating with the cutouts formed on the side plates.

2. The phototherapy hair removal device according to claim 1, wherein, The optical filter is a flat plate component. Three slotted structures are provided on the reflector, corresponding to one long side of the flat plate component.

3. The phototherapy hair removal device according to claim 1 or 2, wherein, At least a portion of the housing, including the optical filter, is arranged to be exposed outside the housing. The exposed portion of the casing is waterproof.

4. The phototherapy hair removal device according to claim 1, wherein, The phototherapy hair removal device has a first heat dissipation component disposed on the outer periphery of the housing and dissipating heat from the inside of the housing to the outside. The housing has a vent at a position corresponding to the location where the first heat dissipation component is provided.

5. The phototherapy hair removal device according to claim 4, wherein, The phototherapy hair removal device has a sealing component arranged to surround the first heat dissipation component and the vent, thereby sealing the enclosed space relative to the space between the housing and the outer shell.

6. The phototherapy hair removal device according to claim 1, wherein, The phototherapy hair removal device has a first heat dissipation component disposed on the outer periphery of the housing and dissipating heat from the inside of the housing to the outside. The housing has a recess that is recessed towards the outer periphery of the outer shell. The first heat dissipation component is exposed on the bottom surface of the recess.

7. The phototherapy hair removal device according to any one of claims 4 to 6, wherein, The first heat dissipation component is a heat sink. The first heat dissipation component has a plurality of fins that protrude toward the inner circumferential surface of the housing.

8. The phototherapy hair removal device according to any one of claims 4 to 6, wherein, The phototherapy hair removal device has a second heat dissipation component, which is disposed on the inner periphery of the housing at a position corresponding to the position where the first heat dissipation component is disposed, and dissipates heat from the inside of the housing to the outside.

9. The phototherapy hair removal device according to claim 8, wherein, The second heat dissipation component is a heat sink. The second heat dissipation component has multiple fins that protrude inward toward the inside of the outer casing.

10. The phototherapy hair removal device according to claim 8, wherein, The first heat dissipation component and the second heat dissipation component are integrally formed.

11. The phototherapy hair removal device according to claim 7, wherein, A groove with a cross-sectional shape protrudes towards the base between each fin.

Images