CN116669812A - Photo-dehairing device - Google Patents

Abstract

The photo-hair removal device (1) has a housing (11) of a waterproof construction and a casing (21) at least a part of which is arranged in the housing (11). A light emitting unit (31) is provided in the housing (21), and the light emitting unit (31) has: a light-emitting body (312) that emits light that irradiates the skin surface; a reflecting plate (313) which covers the light-emitting body (312) from the rear to the front and reflects the light from the light-emitting body (312); and an optical filter (311) provided at the front end of the reflection plate (313) and transmitting at least a part of the light from the light-emitting body (312) and the reflection plate (313). A fan (32) for circulating air in the housing (21) is provided in the housing (21). With this structure, it is possible to cope with waterproofing and a high temperature of the light emitting part (31).

Description

Photo-dehairing device

Technical Field

The present invention relates to a photo-hair removal device for removing hair by irradiating light to a skin surface.

Background

Provided is a depilation device for depilation by irradiating light to the skin surface. In these depilation devices, the depilation treatment is performed by irradiating the skin surface with laser light or flash light, but the temperature in the housing of the device rises due to the heat generated by the light source. The heat is transmitted to the outer peripheral surface of the housing, and the user of the gripping device may feel the heat. In addition, an increase in temperature in the housing of the device may cause a failure due to deterioration of components or the like, or a reduction in lifetime of the device.

As a countermeasure against this, patent document 1 describes that a fan for cooling is provided to circulate air in a casing, and an air circulation hole is provided in the casing to supply external air into the casing to cool the inside of the casing.

Prior art literature

Patent literature

Patent document 1: japanese patent application laid-open No. 2015-139700

Disclosure of Invention

Problems to be solved by the invention

In the case of hair removal, the hair removal device is sometimes preferably used in a bathroom because of the need to expose the skin. The bathroom is a place where water is used, and water (hot water) is contained in the bathtub, so that the humidity in the bathroom is also large. Therefore, it is desirable that the epilation device is of a waterproof construction. However, as in patent document 1, in a structure in which a hole is provided in a housing for cooling in the housing of an epilation device, it is difficult to form a waterproof structure.

In view of the above background, the present invention provides a means for performing waterproofing and coping with a high temperature of a light emitting portion.

Means for solving the problems

In order to solve the above-described problems, according to one aspect of the present invention, there is provided a photo-hair removal device comprising: a waterproof-structured casing; a light emitting unit that includes a light emitting body that emits light to be irradiated onto a skin surface, a reflecting plate 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 that is provided at the front end of the reflecting plate and transmits at least a part of the light from the light emitting body and the reflecting plate; a housing, at least a part of which is provided in the case and surrounds the light emitting section; and a fan disposed in the housing to convect air in the housing.

According to this photo-hair removing device, by providing the housing surrounding the light emitting portion in the housing, heat emitted from the light emitting portion can be prevented from being transferred to the housing in contact with the user's hand, and by circulating air in the housing by the fan, heat emitted from the light emitting portion can be dispersed into the housing. Namely, both the water repellency and the cooling property are achieved.

In a preferred embodiment, a slit may be provided on the front side of the reflecting plate so that the air flow generated by the fan flows along the surface of the optical filter on the side on which the light from the light emitting body and the reflecting plate is incident.

According to this optical dehairing device, the air having a high temperature in the space surrounded by the optical filter and the reflection plate can be allowed to escape into the space in the housing, and the temperature rise of the optical filter can be suppressed.

In a preferred embodiment, in the photo-hair removing device according to claim 1 or 2, the photo-hair removing device has a support member for supporting the light emitting section in the housing, and a slit is provided in the support member so that the air flow generated by the fan flows along the side surface of the optical filter.

According to this photoepilation device, air having a high temperature in the vicinity of the side surface of the optical filter can be allowed to escape into the space in the housing, and the temperature rise of the optical filter can be suppressed.

In a preferred embodiment, the case may have an irradiation window for irradiating the light from the light emitting unit, and a part of a surface of the case on the side where the optical filter is provided may be in contact with the irradiation window while maintaining a sealed state of a space between the case and the case with respect to a space outside the case.

According to this photoepilation device, the optical filter can be kept waterproof in a state of being exposed to the outside air.

In a preferred embodiment, at least a part of the housing including the optical filter may be provided so as to be exposed to the outside of the housing, and the exposed part of the housing may have a waterproof structure.

According to this photo-hair removal device, the waterproofing property can be maintained in a state in which a part of the housing is exposed. In addition, by circulating air in the case, heat emitted from the light emitting portion can be dispersed in the case, and a temperature rise on the surface of the exposed portion of the case can be suppressed.

In a preferred embodiment, the photo-depilation device may include a 1 st heat radiation member provided on an outer peripheral portion of the housing and configured to radiate heat inside the housing to an outside, and the housing may further include a vent hole at a position corresponding to a position where the 1 st heat radiation member is provided.

According to this photo-hair removal device, heat emitted from the light emitting portion in the housing can be dissipated to the outside of the housing, and the temperature of the housing can be prevented from rising.

In a preferred embodiment, the optical dehairing device may further include a sealing member that is provided so as to surround the 1 st heat radiating member and the periphery of the vent hole of the housing, and seals the enclosed space from the space between the housing and the case.

According to this photo-hair removing device, water entering the housing from the vent hole can be prevented from entering other spaces in the housing, and water repellency can be maintained.

In a preferred embodiment, the optical depilation device may include a 1 st heat radiation member provided on an outer peripheral portion of the housing and configured to radiate heat inside the housing to an outside, the case may include a recess recessed toward the outer peripheral portion of the housing, and the 1 st heat radiation member may be exposed at a bottom surface of the recess.

According to this photo-hair removal device, heat emitted from the light emitting portion in the housing can be dissipated to the outside of the housing, and the temperature of the housing can be prevented from rising.

In a preferred embodiment, the 1 st heat radiating member may be a heat radiator, and the 1 st heat radiating member may have fins formed so as to protrude toward an inner peripheral surface side of the case.

According to this photo-hair removal device, heat emitted from the light emitting portion in the housing can be efficiently dissipated to the outside of the housing.

In a preferred embodiment, the optical depilation device may include a 2 nd heat radiation member which is provided at a position corresponding to a position at which the 1 st heat radiation member is provided in the inner peripheral portion of the housing, and which radiates heat inside the housing to the outside.

According to this photo-hair removing device, heat emitted from the light emitting portion in the housing can be efficiently absorbed and dissipated to the outside of the housing.

In a preferred embodiment, the 2 nd heat radiating member may be a heat radiator, and the 2 nd heat radiating member may have fins protruding inward of the housing.

According to this photo-hair removing device, heat emitted from the light emitting portion in the housing can be efficiently absorbed and dissipated to the outside of the housing.

In a preferred embodiment, the 1 st heat radiating member and the 2 nd heat radiating member are integrally formed members.

According to this photo-hair removing device, heat emitted from the light emitting portion in the housing can be efficiently absorbed and dissipated to the outside of the housing.

In a preferred embodiment, grooves are formed between the fins, the grooves protruding toward the base in a cross-sectional shape. This improves the drainage of the liquid that has entered the recess.

Drawings

Fig. 1 is a view showing the appearance of the photo-hair removal device of embodiment 1.

Fig. 2 is a diagram showing an internal configuration of the photo-hair removal device of embodiment 1.

Fig. 3 is a view showing the external appearance of the housing of the photo-hair removal device of embodiment 1.

Fig. 4 is a diagram showing a structure of a light emitting portion of the photo-hair removal device of embodiment 1.

Fig. 5 is a sectional view for explaining the flow of air in the housing of the photo-hair removal device of embodiment 1.

Fig. 6 is a view for explaining the flow of air around the optical filter of the photo-hair removing device of embodiment 1.

Fig. 7 is a view showing the appearance of the photo-hair removal device of embodiment 2.

Fig. 8 is a cross-sectional view showing a structure in a housing of the photo-hair removal device of embodiment 2.

Fig. 9 is a perspective view showing the structure of a heat sink of the photo-hair removal device of embodiment 2.

Fig. 10 is a cross-sectional view showing a structure in a housing of a photo-hair removal device according to modification 1.

Fig. 11 is a cross-sectional view showing a structure in a housing of a photo-hair removal device according to modification 2.

Fig. 12 is a perspective view showing the structure of a heat sink of the photo-hair removal device according to modification 2.

Fig. 13 is a perspective view showing a structure of a heat sink of the photo-hair removal device according to modification 2.

Detailed Description

[ embodiment 1 ]

Hereinafter, the photo-hair removal device 1 according to embodiment 1 of the present invention will be described.

Fig. 1 is a diagram showing an external appearance of a photo-epilation device 1. The housing 11 is waterproof, and is structured such that water does not enter the housing 11 from the outside. A skin guide surface 12 is formed on the upper side of the housing 11, and the skin guide surface 12 is brought into contact with a treatment target portion for use by a user in a state of holding the photo-hair removing device 1.

The skin guide surface 12 is formed with an irradiation window 13 as an opening. The irradiation window 13 is provided to irradiate light from a light emitting unit described later to the outside of the housing 11. As will be described later, the irradiation window 13 contacts the optical filter on the inner side of the housing 11, and the waterproof property of the interior of the housing 11 is maintained.

The housing 11 is provided with a display unit 14 and a switch 15. The display unit 14 is a liquid crystal screen or the like, and displays the current operation state and other information. The switch 15 is a switch operated by a user, and inputs on/off of a power supply, designation of operation contents, and other instructions.

As shown in fig. 1, the housing 11 is formed in a shape in which the outer periphery on the lower side is shorter (i.e., thinner) than that on the upper side. The user holds the photo-hair removal device 1 by holding the holding portion 16, which is a lower portion thereof, by hand. Then, the user holds the photo-hair removal device 1 so that the irradiation window portion 13 faces the skin surface by bringing the skin guide surface 12 into contact with the skin surface.

In the present specification, "waterproof" does not need to be "completely waterproof" to completely prevent water from entering, but may be a simple waterproof function such as "living waterproof" or "daily life prevention", but is preferably a waterproof function of 4 or more grades under JIS waterproof protection grade, for example.

Fig. 2 is a diagram showing an internal configuration of the photo-epilation device 1. A housing 21, an electronic component part 22, and a power supply part 23 are provided inside the housing 11 of the photo-depilation device 1.

The housing 21 is a box-like body that includes the light emitting portion 31 and the fan 32 therein and forms a closed space. The light emitting unit 31 is a member that generates light emitted to the outside through the irradiation window 13, and an optical filter 311 is provided on the light emitting side. At least a part of the surface of the optical filter 311 is exposed to the outside through the irradiation window 13, and the optical filter 311 forms a part of the outer surface of the housing 21.

The electronic component unit 22 receives power from the power supply unit 23, and performs control to cause the light emitting unit 31 to flash light in accordance with an operation of the switch 15. In addition, in parallel with the control of the blinking light emission, control is performed to operate the fan 32 in the housing 21 during light emission.

The power supply unit 23 is provided with a rechargeable battery, and supplies electric power to the electronic component unit 22. A power supply port required for charging is provided at a lower end surface of the housing 11.

The case 21, the electronic component part 22, and the power supply part 23 are respectively coupled and fixed to the inside of the case 11 at a plurality of positions by screw fixation or the like. The outer surfaces of the case 21, the electronic component unit 22, and the power supply unit 23 are not in contact with the case 11 except for the coupling portions, and a space S1 is formed between the inner surface of the case 11.

The light guide plate 131 extending in the inner direction of the housing 11 is provided to surround the rectangular opening in the irradiation window 13 provided in the housing 11. The light guide plate 131 maintains a space from the optical filter 311 to the skin guide surface 12, and can prevent the skin from directly contacting the optical filter 311.

The front surface of the case 21 on the side where the optical filter 311 is provided is fixed in contact with the light guide plate 131. A gasket, which is a sealing member for sealing a gap generated at the contact portion, is interposed between the front surface of the housing 21 and the inner side end portion of the casing 11 of the light guide plate 131.

Since the space S1 in the housing 11 is sealed by the gasket between the light guide plate 131 and the front surface of the case 21, the space S1 is kept sealed from the outside space of the housing 11, and the waterproof structure of the housing 11 is maintained.

Fig. 3 is a diagram showing an external appearance of the housing 21. On the front surface side of the housing 21, the optical filter 311 forming the light emitting portion 31 is exposed. An upper cover 211 is provided on the upper side so as to surround the light emitting section 31 including the optical filter 311, a lower cover 212 is provided on the lower side, and a side cover 213 is provided on the side surface.

Fig. 4 is a diagram showing the structure of the light emitting unit 31. The light emitting section 31 is constituted by an optical filter 311, a light emitter 312, and a reflecting plate 313.

The light emitter 312 emits light to be irradiated to the skin surface, for example, using a xenon tube. The reflection plate 313 is a semicircular plate-like member, and has a light emitter 312 provided on the inner peripheral side thereof, and covers the rear side (the side opposite to the side on which the optical filter 311 is provided) of the light emitter 312 to the front side (the side on which the optical filter 311 is provided, i.e., the side from which light is emitted). The inner peripheral side of the reflection plate 313 is mirror finished, and light emitted from the light emitter 312 and received by the inner peripheral surface of the reflection plate 313 is reflected. The left and right side surfaces of the reflection plate 313 are covered with planar side plates 314, and the inner peripheral sides of these side plates 314 are also mirror finished, so that light emitted from the light-emitting body 312 and received by the inner peripheral surfaces of the side plates 314 is reflected.

The optical filter 311 is disposed at the front end of the reflection plate 313. The light emitted from the light emitter 312 and reflected by the inner peripheral surface of the reflection plate 313 are incident on the optical filter 311. A part of the light entering the optical filter 311 is cut off, and the remaining part is transmitted. The optical filter 311 is a filter formed of glass, and has a function of transmitting only light of a wavelength suitable for depilation (for example, a UV cut-off function of cutting off ultraviolet rays harmful to the skin) among the light from the light emitter 312.

The optical filter 311 preferably has a function of transmitting only a specific wavelength (or not transmitting a specific wavelength), such as a UV cut function, but may be provided for the purpose of protecting the light emitter 312 and the reflection plate 313 without having such a function.

The upper front end portion of the reflection plate 313 is provided with cutouts at 3 positions, and 3 slits 313a, 313b, and 313c are formed between the cutouts and the optical filter 311. Further, the lower front end portion of the reflection plate 313 is also provided with cutouts at 3 positions, and 3 slits 313d, 313e, 313f are formed between the lower front end portion and the optical filter 311. The left and right side plates 314 are also provided with cutouts, and slits 314a and 314b are formed between the side plates and the optical filter 311.

These slits are provided to circulate air inside the light emitting portion 31 and air inside a space outside the light emitting portion 31 (space inside the housing 21), and can suppress the temperature of the space inside the light emitting portion 31 from becoming high due to heat generated from the light emitting body 312 during light emission.

Fig. 5 is a sectional view for explaining the flow of air in the housing 21. A fan 32 is provided in the housing 21 at a position rearward of the light emitting portion 31 (at a position opposite to the side from which light is emitted). The fan 32 rotates the light emitting body 312 to supply air, thereby circulating air in the housing 21.

In order to fix the light emitting portion 31 in the housing 21, a support member 41 that supports the light emitting portion 31 is provided. The support member 41 supports the light emitting portion 31 so as to cover the upper side, the lower side, and the left and right sides of the light emitting portion 31. In fig. 5, only the upper and lower cross sections of the support member 41 are shown.

The space between the surface of the optical filter 311 provided on the front side of the light emitting section 31 and the inner peripheral side of the front face of the housing 21 is sealed by a gasket 51. The pad 51 is formed in a rectangular shape surrounding the outer peripheral side of the surface of the optical filter 311. As shown in fig. 5, the cross section of the pad 51 is circular (or may be elliptical). In this way, by attaching the gasket 51 between the inner peripheral side of the front face 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.

The air flow indicated by the arrow in fig. 5 is generated in the housing 21 by the air blowing of the fan 32. The air flow generated by the fan 32 and flowing forward in the housing 21 from the side of the fan 32 is divided into an upward-facing air flow and a downward-facing air flow by collision with the light emitting portion 31 or the support member 41. The upward air flow is divided into an air flow AHI flowing along the upper outer peripheral surface of the reflection plate 313 and the upper inner peripheral surface of the support member 41, and an air flow AHS flowing along the upper surface of the support member 41 and the upper inner peripheral surface of the housing 21. The downward air flow is divided into an air flow ALI flowing along the lower outer peripheral surface of the reflection plate 313 and the lower inner peripheral surface of the support member 41, and an air flow ALS flowing along the lower surface of the support member 41 and the lower inner peripheral surface of the housing 21.

The airflows AHS and ALS will be described later. The airflow AHI flows into the space in the light emitting section 31 from the slits 313a to 313c on the upper side of the reflecting plate 313 of the light emitting section 31. The air flow ALI flows into the space in the light emitting section 31 from the slits 313d to 313f on the lower side of the reflection plate 313. The airflow AHI flows in the light-emitting unit 31 downward in fig. 5 along the back surface of the optical filter 311 (the surface on the side on which the light from the light-emitting body 312 and the reflecting plate 313 is incident). The airflow ALI flows in the light emitting section 31 upward in fig. 5 along the back surface of the optical filter 311.

The airflow AHI collides with the airflow ALI and mixes, and mainly generates an airflow flowing backward (light emitter 312 side) and an airflow flowing in the left-right direction (left-right side plate 314 side in fig. 4) in the space of the light emitting unit 31. The air flow flowing in the left-right direction flows out of the slits 314a, 314b of the side plate 314 to the outside of the light emitting portion 31, and flows in the fan 32 direction in the space inside the housing 21.

The space in the housing 21 increases in temperature due to heat generated by the light emitting body 312. Further, the optical filter 311, which receives light from the light emitter 312, is heated, and the temperature of the air in the vicinity of the optical filter 311 increases. As described above, the airflows AHI and ALI flowing in from the slits 313a to 313f flow on the back surface of the optical filter 311, and thereby air in the vicinity of the back surface of the optical filter 311 is circulated, and the temperature rise of the optical filter 311 can be suppressed.

As described above, the air is circulated by the air blowing of the fan 32, including the inside of the light emitting portion 31, in the space inside the housing 21. The space inside the housing 21 is sealed with respect to the space S1 inside the case 11. Therefore, even if the space in the housing 21 is at a high temperature, the air at the high temperature hardly flows out to the space S1 in the housing 11, and the temperature of the space S1 in the housing 11 hardly increases. Therefore, the temperature of the surface of the case 11 is also difficult to rise.

In this way, heat generated in the light emitting portion 31 is prevented from being transferred to the case 11, and the temperature rise of the surface of the case 11 can be prevented. Therefore, even if the light emitting operation from the light emitting portion 31 is performed in a state where the user holds the photo-hair removing device 1, the surface of the housing 11 does not overheat, and the user can use it comfortably.

In addition, although the temperature of the air in the case 21 increases during use, the air in the space in the case 21 is circulated by the air blown by the fan 32, so that the temperature increases in the optical filter 311, the light emitter 312, and the reflection plate 313 can be suppressed, and it is not easy for the user to cause a trouble to the members constituting the light emitting unit 31 during the use time (about 10 minutes).

Fig. 6 is a diagram for explaining the flow of air around the optical filter 311. Fig. 6 shows a state in which the upper cover 211, the lower cover 212, and the side covers 213 are removed from the housing 21 shown in fig. 3. The support member 41 supports the light emitting portion 31 so as to cover the upper side, the lower side, and the left and right sides of the light emitting portion 31. The outer peripheral side of the support member 41 is fixed to the inner surface of the housing 21.

Protruding walls 411 and 412 are provided on the upper portion of the support member 41, and 3 slits 413a, 413b, and 413c are formed between the upper surface of the support member 41 and the upper cover 211. Protruding walls 414, 415 are provided at the lower portion of the support member 41, and 3 slits 416a, 416b, 416c are formed between the lower surface of the support member 41 and the lower cover 212. Ventilation passages 417a, 417b are formed in the left and right side portions of the support member 41 and communicate with slits 314a, 314b formed in the side plate 314 of the light emitting unit 31, respectively.

The space formed by the slits 413a, 413b, 413c, the space formed by the slits 416a, 416b, 416c, and the space formed by the ventilation paths 417a, 417b extend rearward of the support member 41, and communicate with the space inside the housing 21. That is, the air flow generated by the air blown by the fan 32 is also taken in and out of the slits 413a, 413b, 413c, the slits 416a, 416b, 416c, and the ventilation paths 417a, 417b.

The air flow AHS flowing in by the air blowing of the fan 32 shown in fig. 5 flows into the 3 slits 413a, 413b, 413c in the upper portion of the support member 41. Likewise, the air flow ALS flows into the 3 slits 416a, 416b, 416c in the lower portion of the support member 41.

The front surface (surface on the opposite side to the light emitter 312 side) of the optical filter 311 is in contact with the inner peripheral side of the front surface of the housing 21 via the gasket 51, and is sealed by the gasket 51. Therefore, the air flows flowing in from the slits 413a, 413b, 413c and the slits 416a, 416b, 416c do not flow toward the front surface side of the optical filter 311.

In fig. 6, the air flows that have passed through the centrally located slits 413b, 416b among the slits formed in the upper and lower portions of the support member 41 are divided and flow in the left-right direction. In fig. 6, the air flow flowing in the left direction through the slit 413b merges with the air flow flowing through the slit 413a, flows along the side surface of the optical filter 311, and flows out of the ventilation passage 417a as the air flow AHSa. The air flow flowing rightward through the slit 413b merges with the air flow flowing through the slit 413c, flows along the side surface of the optical filter 311, and flows out of the ventilation passage 417b as the air flow AHSb.

Similarly, the air flow flowing in the left direction through the slit 416b merges with the air flow flowing through the slit 416a, flows along the side surface of the optical filter 311, and flows out of the ventilation passage 417a as the air flow ALSa. The air flow flowing rightward through the slit 416b merges with the air flow flowing through the slit 416c, flows along the side surface of the optical filter 311, and flows out of the ventilation passage 417b as the air flow AHLb.

In FIG. 6, airflow AHIa, AHIb, ALIa, ALIb represents the airflows AHI, ALI shown in FIG. 5 separated and passing through slots 313 a-313 f shown in FIG. 4, respectively. As shown in fig. 5, these airflows flow along the back surface of the optical filter 311.

The airflows flowing out of the slits 313b and 313e provided in the center among the slits 313a to 313f flow downward and upward along the back surface of the optical filter 311, respectively. The 2 airflows collide with each other and flow separately in the left-right direction.

The airflows flowing in the left direction from the slits 313b and 313e are merged with airflows flowing downward and upward along the back surface of the optical filter 311 through the slits 313a and 313d, respectively, and flow out as airflows AHIa and ALIa from the slit 314a through the ventilation passage 417 a.

The airflows flowing rightward through the slits 313b and 313e are merged with airflows flowing downward and upward along the back surface of the optical filter 311 through the slits 313c and 313f, respectively, and flow out as airflows AHIb and ALIb from the slit 314b through the ventilation passage 417 b.

The air flow AHSa, ALSa, AHIa, ALIa flowing out of the air passage 417a and the air flow AHSb, ALSb, AHIb, ALIb flowing out of the air passage 417b collide with the left and right side covers 213 (fig. 3) not shown in fig. 6 and flow into the rear space in the housing 21.

As described above, the air flows flowing in from the slits 413a, 413b, 413c, 416a, 416b, and 416c along the side surfaces of the optical filter 311 and the air flows flowing in from the slits 313a to 313f along the rear surfaces of the optical filter 311 flow out of the light emitting unit 31 through the ventilation passages 417a and 417b, and flow into the space in the housing 21, and circulate.

By generating such an air flow, air in the vicinity of the side surface and the back surface of the optical filter 311 can be moved, and a temperature rise of the optical filter 311 can be suppressed. The optical filter 311 is a member that maintains a distance to the skin guide surface 12 by the light guide plate 131, but approaches a distance to the skin surface in use. Therefore, by suppressing the temperature rise during use, the user can be prevented from feeling hot to the skin.

In the present embodiment, since 3 slits are provided on the upper side and the lower side of the reflection plate 313, the airflows AHI and ALI are divided by the 3 slits, respectively, and the airflows easily flow uniformly on the back surface of the optical filter 311. The optical filter 311 made of glass may be broken due to uneven temperature distribution, and preferably the air flow is uniformly flowed in the plane and cooled uniformly. In the present embodiment, by disposing the slits as described above, the airflow is easy to flow uniformly, and breakage of the optical filter 311 can be prevented.

In the present embodiment, since 3 slits are provided in the upper and lower portions of the support member 41, respectively, the airflows AHS and ALS are divided by the 3 slits, respectively, and are easily equally divided from left to right, so that the airflows easily flow uniformly to the side surfaces of the optical filter 311. Therefore, the temperature distribution on the side surface of the optical filter 311 can be prevented from becoming uneven, and breakage of the optical filter 311 can be prevented.

In addition, by circulating air in the housing 21 and circulating heat generated from the light emitting portion 31 in the space of the housing 21, the temperature rise in the space in the light emitting portion 31 can be suppressed. The larger the volume of the space in the housing 21, the greater the effect of suppressing the temperature rise in the space, the greater the volume of the space in the housing 21 relative to the volume of the space in the light emitting portion 31, and the greater the effect of suppressing the temperature rise in the space in the light emitting portion 31.

Therefore, the ratio of the volume of the space in the light emitting portion 31 to the volume of the space in the housing 21 is preferably 1:10 to 1: about 15. On the other hand, considering portability of the device, it is preferable to reduce the volume of the housing 21 as much as possible for downsizing, and therefore the ratio of the volume of the space in the light emitting portion 31 to the volume of the space in the housing 21 may be 1:5 to 1: about 13.

In addition, in order to suppress the temperature rise of the space in the light emitting portion 31, it is preferable to consider the flow rates of the air flow in the fan 32 and the housing 21 in addition to the above-described volume ratio. Therefore, it is preferable to adjust the amount of heat generated in the space and the volume so as to maintain the flow rate of the air flow and the air volume of the fan 32 capable of suppressing the temperature rise.

The heat generation in the light emitting portion 31 also affects the temperature of the air in the space S1 in the housing 11. The housing 11 is of a waterproof structure, is airtight to the outside air, and cannot introduce the outside air into the space S1 inside the housing 11. As in the present embodiment, by providing the housing 21 in the case 11 and providing the light emitting portion 31 in the housing 21, the influence of the temperature rise of the light emitting portion 31 can be made to stay in the housing 21.

According to the present embodiment, the influence of heat generation in the light emitting portion 31 hardly affects the space S1 in the housing 11, and the temperature of the space S1 in the housing 11 hardly increases. Therefore, the temperature of the housing 11 is also less likely to rise, and the user holding the housing 11 is less likely to feel heat. In addition, deterioration of the components due to the influence of the temperature rise in the case caused by heat generation can be suppressed, and failure of the product and shortening of the life can be prevented.

Further, according to the present embodiment, the influence of the temperature rise due to heat generation can be reduced without suppressing the output of the light emitter 312 (e.g., xenon tube) of the light emitting unit 31. If the output of the light emitter 312 is suppressed, heat generation can be suppressed, but in order to obtain the depilation effect, it is preferable to make the light emitter 312 emit light with a high output to some extent. According to the present embodiment, the influence of heat generation can be suppressed without reducing the depilation effect.

Further, by providing the fan 32 in the sealed housing 21, the sound generated by the driving of the fan 32 is less likely to leak out of the housing 21, and the quietness of the device can be improved.

In the present embodiment, the air blowing operation of the fan 32 may be started in conjunction with the start of light emission (the start of the depilation process) of the light emitter 312 by the operation of the switch 15 by the user, and stopped in conjunction with the stop of light emission (the end of the depilation process) of the light emitter 312 by the operation of the switch 15.

[ embodiment 2 ]

Hereinafter, a photo-hair removal device 1A according to embodiment 2 of the present invention will be described.

Fig. 7 is a view showing an appearance of the photo-hair removal device 1A. In the present embodiment, a part of the housing 21A is coupled to the case 11A to form a part of the outer shape. Fig. 7 shows a state in which the housing 21A is detached from the casing 11A. By connecting the housing 11A and the case 21A, the rear portion of the case 21A in fig. 7 is inserted into the housing 11A, and the front portion is exposed in front of the housing 11A. Hereinafter, the portion of the front portion of the housing 21A exposed and formed in the outer shape is referred to as a housing case portion 215, and the portion of the rear portion located in the case 11A is referred to as a housing insertion portion 216. The housing case 215 has the same skin guide surface 12 and the irradiation window 13 as the case 11 of embodiment 1.

A radiator 61 as a heat radiating member is provided on the outer peripheral surface of the housing insertion portion 216. A groove portion is formed around the heat sink 61, and a gasket 62 as a sealing member is attached to the groove portion. The gasket 62 surrounds the periphery of the radiator 61 and has a shape protruding in the direction of the inner peripheral surface of the case 11A.

The housing 11A is provided with a vent hole 18. The housing 11A has a grip 16 similar to the housing 11 of embodiment 1, and a display 14 and a switch 15 are provided on a surface opposite to a surface on which the vent 18 is provided, although not shown in fig. 7. The vent hole 18 is formed by, for example, arranging a plurality of elongated openings formed along the longitudinal direction of the case 11A in the short side direction.

Fig. 8 is a sectional view showing the internal structures of the housing 11A and the case 21A of the photo-hair removing device 1A. In fig. 8, the same reference numerals as those in fig. 5 are the same as those described in fig. 5, and therefore, description thereof is omitted. Fig. 8 shows a state in which the case 11A is attached to the case 21A and covers the case insertion portion 216 of the case 21A in fig. 7, that is, a normal use state. As shown in fig. 8, the position of the vent hole 18 of the case 11A corresponds to the position of the radiator 61 provided on the outer peripheral surface of the housing insertion portion 216. That is, the vent hole 18 and the radiator 61 are located at positions opposed to each other.

The gasket 62 is provided so as to surround the heat radiating portion of the heat sink 61. The gasket 62 extends from the radiator 61 toward the inner peripheral surface of the case 11A, and an end portion on the case 11A side is in close contact with the inner peripheral surface of the case 11A, so that the inner space of the gasket 62 is sealed from the other space S1 in the case 11A. The end of the packing 62, which is in close contact with the inner peripheral surface of the case 11A, surrounds the region of the inner peripheral surface of the case 11A where the vent hole 18 is provided.

A gasket 71 is provided at a connecting portion between the case 11A and the housing 21A. In the coupling portion, the front end portion of the housing 11A covers the rear end portion of the housing case portion 215 of the housing 21A, and the gasket 71 is fitted and sealed in a gap between the inner peripheral surface of the housing 11A and the outer peripheral surface of the housing case portion 215. The gasket 71 is formed in an elliptical shape surrounding the outer periphery of the housing portion 215 and the inner periphery of the housing 11A. As shown in fig. 8, the cross-sectional shape of the pad 71 is circular (or may be elliptical). In this way, by attaching the spacer 71 to the connection portion, the space S1 in the housing 11A is sealed from the external space of the photo-hair removal device 1A.

The housing 11A is a waterproof structure, and is configured so that water does not enter the housing 11A from the outside even when the photo-hair removal device 1A is used in a bathroom or the like. However, water enters the interior of the housing 11A from the vent hole 18 of the housing 11A. Therefore, the space containing the radiator 61 and the vent hole 18 is closed by the gasket 62 so that water entering from the vent hole 18 does not enter the other space S1 in the housing 11A.

In the present embodiment, since the housing case portion 215 of the housing 21A forms a part of the external shape of the photo-hair removal device 1A, that is, is exposed to the outside, at least the housing case portion 215 of the housing 21A is formed in a waterproof structure as in the case of the housing 11A. Since the gasket 51 is provided between the optical filter 311 and the inner peripheral side of the front surface of the case 21A, the optical filter is sealed from the outside, and water repellency is maintained.

The heat sink 61 is a heat radiating member for cooling the inside of the housing 21A by absorbing heat generated in the housing 21A and radiating the heat to the outside of the housing 21. The heat sink 61 is formed of copper, iron, aluminum, or the like having high thermal conductivity.

Fig. 9 is a perspective view showing the structure of the heat sink 61. The heat sink 61 is composed of a flat plate-shaped main body 611 and a plurality of fins 612 protruding from the main body 611. A groove portion 613 for mounting the gasket 62 is provided around the main body portion 611.

The body 611 is attached to the outer peripheral surface of the housing 21A. The fins 612 are provided with a plurality of protruding portions so as to protrude from the main body 611 attached to the housing 21A toward the inner peripheral surface of the case 11A. The fins 612 are provided to increase the heat dissipation efficiency and to have a shape with a wider surface area.

With this structure, the heat sink 61 can absorb heat generated in the housing 21A on the housing 21 side surface of the body 611 and dissipate the heat to the space surrounded by the gasket 62 via the fins 612. Further, the heat released from the vent hole 18 can be released to the outside of the case 11A.

The radiator 61 may be provided on the outer peripheral surface of the housing 21A, but an opening portion to which the body portion 611 of the radiator 61 is attached may be formed in the housing 21A, and the body portion 611 of the radiator 61 may be attached to the opening portion. In this case, a gasket is attached to a gap between an edge of the opening of the case 21A and the main body 611 of the heat sink 61, and the gap between the opening and the main body 611 is sealed. By adopting such a configuration, the body portion 611 of the heat sink 61 is in contact with the air in the housing 21A, and the heat radiation efficiency of the heat generated in the housing 21A can be improved.

A curved surface 612a protruding toward the main body 611 (toward the base) is formed at the root portion of the fin 612, that is, at the boundary portion with the main body 611. In other words, grooves having a curved cross section (e.g., U-shaped, parabolic, etc.) are formed between the fins. Here, as described above, water may enter the space surrounded by the gasket 62 in fig. 8 through the vent hole 18, but from the standpoint of sanitation and securing of the operation of the apparatus, it is not preferable that water and other liquid enter the casing. From this point of view, by forming such curved surfaces 612a, even if a liquid such as water enters the space, the grooves promote the discharge of the liquid, and thus it is difficult to accumulate between the fins 612.

The groove 613 may be inclined so that the end portion is lower than the center portion along the direction in which the groove extends. This further improves the liquid discharge effect.

According to the photo-hair removing device of embodiment 2 described above, the same effects as those of the photo-hair removing device of embodiment 1 described above can be obtained. In embodiment 1, the effect that the temperature of the space S1 in the case 11 is less likely to rise and the temperature of the case 11 is less likely to rise is obtained, and in embodiment 2, the effect that the temperature of the case 11 is more likely to rise is obtained by providing the vent hole and the radiator.

Modification example

The above-described embodiments (embodiment 1 and embodiment 2) can be variously modified. The following shows modifications thereof. The above-described embodiments and modifications shown below may be appropriately combined.

(1) In the above-described embodiment, the rechargeable battery is used as the power source of the photo-hair removing device 1, but the power source is not limited to the rechargeable battery, and may be an external power source or a dry cell. However, in view of use in a bathroom, a battery such as a rechargeable battery or a dry cell is preferably used.

(2) In the above-described embodiment, the light irradiated to the skin is made to flash light by using a light emitter, but a system of irradiating laser light by using a laser light source or a system of using an LED (light emitting diode) as a light source may be used.

(3) In the above-described embodiment, the opening of the irradiation window 13 provided in the housing 11 has a quadrangular shape, but may have other shapes, for example, a polygonal shape other than a quadrangular shape, a circular shape, an elliptical shape, or a shape having a curved periphery.

(4) In the above-described embodiment, the reflection plate 313 of the light-emitting unit 31 is a semicircular plate-like member, but may be formed of other shapes as long as the light from the light-emitting body 312 can be reflected toward the optical filter 311.

(5) In the above-described embodiment, as shown in fig. 5, the fan 32 is provided in the housing 21 at the rear of the light emitting portion 31 (at a position opposite to the side from which light is emitted), but the present invention is not limited to this as long as air in the housing 21 and in the light emitting portion 31 can be circulated. For example, the light emitting portion 31 may be provided above or below.

(6) In the above-described embodiment, at least a part of the surface of the optical filter 311 is exposed to the outside through the irradiation window portion 13 of the housing 11, but a transparent glass or a heat-resistant transparent material may be superimposed on the surface of the optical filter 311, so that the surface of the optical filter 311 is not exposed to the outside. In this case, the structure for generating an air flow in the above-described embodiment also effectively functions in order to suppress the temperature rise of the optical filter 311 in use of the photo-hair removing device 1.

(7) In the above-described embodiment, in order to facilitate uniform flow of the air flow in the vicinity of the optical filter 311, 3 slits are provided on the upper and lower sides of the reflection plate 313, and 3 slits are provided on the upper and lower sides of the support member 41, respectively, but the number and arrangement of the slits are not limited.

The number and arrangement of slits may be appropriately changed according to the size and shape of the irradiation window 13 and the reflection plate 313. For example, when the opening of the irradiation window 13 is large, the optical filter 311 may have a large surface area, and thus 4 or more slits may be provided in the upper and lower sides of the reflection plate 313 and the support member 41, respectively, in response to this. The number and arrangement of the slits may be appropriately changed according to the size (width) of the slits to be provided. For example, in the case of reducing the width of the slits, the number of slits to be arranged may be 4 or more.

(8) In embodiment 2 described above, the vent hole 18 is provided in the case 11A to radiate heat generated in the housing 21A to the outside through the radiator 61, but instead of the vent hole 18, a recess recessed from the surface of the case 11A may be provided in the case 11A so that the radiator 61 is exposed from the bottom surface of the recess.

Fig. 10 is a cross-sectional view showing a structure in a housing 11B of a photo-hair removal device 1A according to modification 1. In fig. 10, the same reference numerals as those in fig. 8 are the same as those described in fig. 8, and therefore, description thereof is omitted.

The case 11B in fig. 10 is different from the case 11A in fig. 8 in that a recess 19 is provided in the case 11B at a position where the vent hole 18 is provided in the case 11A in fig. 8. The recess 19 is formed with a recessed area having a rectangular shape or a circular shape, for example, in the same area as the area of the housing 11A in fig. 7 where the vent hole 18 is provided.

In fig. 10, a side portion 19a of the recess 19 formed in the case 11B extends toward the radiator 61 provided in the housing 21A. The bottom surface of the recess 19 is open, and the heat radiation surface of the radiator 61 is exposed. A pad 69 is attached to the radiator 61-side end of the side portion 19 a. The pad 69 is mounted to the groove portion 613 (fig. 9) of the heat sink 61. The space between the end of the side portion 19a and the surface of the heat sink 61 is sealed by a gasket 69. That is, the inner space of the recess 19 is sealed from the inner space S1 of the housing 11B.

The housing 11B has a waterproof structure, and water does not enter the housing 11B from the outside. Although water enters the recess 19 of the housing 11B, the space including the radiator 61 and the recess 19 is closed by the gasket 69 so that water entering the recess 19 does not enter the space S1 in the housing 11B.

(9) In embodiment 2 described above, the radiator 61 is provided on the outer peripheral surface of the housing 21A, but the radiator may be provided inside the housing 21A in addition to the outer peripheral surface of the housing 21A.

Fig. 11 is a cross-sectional view showing a structure in a housing 11A of a photo-hair removal device 1A according to modification 2. In fig. 11, the same reference numerals as those in fig. 8 are the same as those described in fig. 8, and therefore, description thereof is omitted.

In fig. 11, a heat sink 65 is added to the structure in fig. 8. The heat sink 65 is provided on the inner peripheral surface of the housing 21A. The position where the inner peripheral surface of the heat sink 65 is provided is a position corresponding to the position where the outer peripheral surface of the heat sink 61 is provided. That is, the heat sink 65 is provided at a position on the inner side of the position of the outer peripheral surface of the housing 21A where the heat sink 61 is provided.

Fig. 12 is a perspective view showing the structure of the heat sink 65. The heat sink 65 is constituted by a flat plate-shaped main body 651 and a plurality of fins 652 protruding from the main body 651.

The main body 651 is attached to the inner peripheral surface of the housing 21A. The fins 652 are provided so as to protrude from the main body 651 attached to the housing 21 toward the inside of the housing 21A. The fins 652 absorb heat generated inside the housing 21A. By providing the fins 652, the surface area becomes large, and the efficiency of absorbing heat can be improved.

The fin 652 is provided so that the longitudinal direction is a direction along the arrow B direction. As shown in fig. 11, the arrow B direction is a direction along the flow of air in the housing 21A generated by the fan 32. That is, the heat sink 65 is arranged in a direction in which air flows along the grooves of the fins 652. With such a configuration, the heat dissipation of the fin 652 can be improved.

The heat absorbed by the fins 652 is radiated from the main body 651 to the inner peripheral surface of the housing 21A. The heat transferred from the inner peripheral surface to the outer peripheral surface of the housing 21A is absorbed by the body portion 611 of the heat sink 61, and is radiated from the fins 612. The heat released from the heat release can be released from the vent hole 18 to the outside of the case 11A.

As described above, by providing the heat sink 65 on the inner peripheral surface of the housing 21, the efficiency of radiating heat generated inside the housing 21A to the outside of the casing 11A can be improved.

(10) In the modification 2 described above, 2 heat sinks 61, 65 are provided, but the 2 heat sinks 61, 65 may be 1 member integrally formed.

Fig. 13 is a perspective view showing the structure of a radiator 67 according to modification 3.

The heat sink 67 is constituted by 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 on which the fins 672 are provided).

The fin 672 is the same as the fin 612 shown in fig. 9, but not shown in fig. 13, a root portion of the fin 672, that is, a boundary portion with the main body portion 671 is formed with the same curved surface as the curved surface 612a of fig. 9. The fin 673 is identical to the fin 652 shown in fig. 12.

A groove portion 674 is formed in a side surface of the periphery of the main body portion 671. A gasket for sealing is attached to the groove part 674. A groove portion similar to the groove portion 613 shown in fig. 9 is formed around the bottom surface (surface provided with the fin 672) of the main body portion 671.

The heat sink 67 is mounted at the same position as the heat sinks 61, 65. Specifically, the fin 672 is attached so as to be outside the housing 21, and the fin 673 is attached so as to be inside the housing 21. In order to mount the radiator 67 in this way, an opening portion to which the body portion 671 of the radiator 67 is mounted is formed in the housing 21.

A gasket is attached between an edge of the opening of the case 21 and the groove 674 of the main body 671 of the heat sink 67, and a gap between the opening and the main body 671 is sealed. The space between the bottom surface of the main body 671 (the surface on which the fins 672 are provided) of the heat sink 67 and the inner peripheral surface of the case 11A is sealed by the gasket 62 in the same manner as the structure shown in fig. 11.

According to the above-described configuration, the heat generated in the housing 21 is absorbed by the fins 673 of the heat sink 67 provided on the inner side of the housing 21, and the heat is radiated from the fins 672 of the heat sink 67 provided on the outer side of the housing 21. Further, the heat released from the vent hole 18 can be released to the outside of the case 11A. In addition, it is preferable to use a material having high corrosion resistance or to perform surface processing for rust prevention for at least the fins 672 in the radiator 67.

Since the heat sink 67 is a member in which the main body 671, the fins 672, and the fins 673 are integrally formed, the heat conduction efficiency from the inside to the outside of the housing 21 can be improved and the heat generated in the housing 21 can be efficiently dissipated to the outside, as compared with the heat sinks 61 and 67 in which the outer peripheral surface and the inner peripheral surface of the housing 21 are formed of 2 members as in the modification 2 described above.

(11) In embodiment 2, modification 1 and modification 2 described above, as shown in fig. 8, 10 and 11, the fan 32 is provided near the upper inner peripheral surface in the housing 21, and the radiator is provided on the lower inner peripheral surface (i.e., the inner peripheral surface facing the inner peripheral surface near the side where the fan 32 is provided) or the outer peripheral surface of the housing 21, but the positional relationship between the fan 32 and the radiator is not limited thereto.

In embodiment 2 (fig. 8) and modification 1 (fig. 10), for example, the fan 32 may be provided near the inner peripheral surface below the casing 21 (i.e., the inner peripheral surface corresponding to the inner side of the outer peripheral surface where the radiator 61 is provided). In modification 2 (fig. 11), the fan 32 may be disposed above and in the vicinity of the heat sink 65 (i.e., in the vicinity of the distal end side of the fin 652 of the heat sink 65). By providing the fan 32 in the vicinity of the radiator in this way, the efficiency of radiating heat generated in the housing 21 to the outside can be improved.

(12) In the above-described embodiment, as shown in fig. 5 and 8, the air flow generated by the fan 32 flows out from the side of the fan 32 toward the front inside the housing 21, but the air flow may also flow out from the fan 32 in other directions. By appropriately changing the orientation of the blades constituting the fan 32 and the shapes of the air intake port and the air outlet port, the flow of air in the casing 21 can be controlled. For example, even when the air flows downward from the fan 32 in fig. 5 and 8, the air flows downward from the fan 32 in the right direction in the drawing, but most of the air flows collide with the right surface of the housing 21 and flow forward, so that most of the air flows from the fan 32 flow forward of the housing 21.

(13) In embodiment 2 described above, the front side of the housing 21A is exposed to the outside of the housing 11A, but the housing 21A may be entirely disposed inside the housing 11A as in embodiment 1.

Description of the reference numerals

1. 1A: a photo-epilating device; 11. 11A, 11B: a housing; 12: a skin guiding surface; 13: an irradiation window section; 14: a display unit; 15: a switch; 16: a holding part; 18: a vent hole; 19: a concave portion; 19a: a side portion; 21. 21A: a housing; 22: an electronic component section; 23: a power supply section; 31: a light emitting section; 32: a fan; 41: a support member; 51: a gasket; 61: a heat sink; 62: a gasket; 65. 67: a heat sink; 69: a gasket; 71: a gasket; 215: a housing shell portion; 216: a housing insert; 131: a light guide plate; 211: an upper cover; 212: a lower cover; 213: a side cover; 311: an optical filter; 312: a light emitting body; 313: a reflection plate; 313a to 313f: a slit; 314: a side plate; 314a, 314b: a slit; 411. 412: a protruding wall; 413a, 413b, 413c: a slit; 414. 415: a protruding wall; 416a, 416b, 416c: a slit; 417a, 417b: an air passage; 611: a main body portion; 612: a fin; 612a: a curved surface; 613: a groove portion; 651: a main body portion; 652: a fin; 671: a main body portion; 672. 673: a fin; 674: a groove portion; AHS, AHSa, AHSb, ALS, ALSa, ALSb, AHI, AHIa, AHIb, ALIa, ALIb: and (3) airflow.

Claims (13)

1. A photo-epilation device, comprising:

a waterproof-structured casing;

a light emitting unit that includes a light emitting body that emits light to be irradiated onto a skin surface, a reflecting plate 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 that is provided at the front end of the reflecting plate and transmits at least a part of the light from the light emitting body and the reflecting plate;

a housing, at least a part of which is provided in the case and surrounds the light emitting section; and

and a fan provided in the housing to circulate air in the housing.

2. The photo-epilation device of claim 1, wherein,

a slit is provided at a front side of the reflection plate so that an air flow generated by the fan flows along a surface of the optical filter on a side on which light from the light emitting body and the reflection plate is incident.

3. A photo-epilation device according to claim 1 or 2, wherein,

the photo-epilation device has a support member for supporting the light emitting portion within the housing,

a slit is provided in the support member so that the air flow generated by the fan flows along the side of the optical filter.

4. A photo-epilation device according to any one of claims 1-3, wherein,

the housing has an irradiation window portion for irradiating light from the light emitting portion,

a part of a surface of the housing on the side where the optical filter is provided is in contact with the irradiation window while maintaining a state in which a space between the housing and the housing is sealed with respect to a space outside the housing.

5. A photo-epilation device according to any one of claims 1-3, wherein,

at least a part of the housing including the optical filter is disposed so as to be exposed to the outside of the housing,

the exposed portion of the housing is of a waterproof construction.

6. The photo-epilation device of any one of claims 1-5, wherein,

the unhairing device comprises a 1 st heat radiating component which is arranged at the periphery of the shell and radiates the heat in the shell to the outside,

the housing has a vent hole at a position corresponding to a position where the 1 st heat radiating member is provided.

7. The photo-epilation device of claim 6, wherein,

the photo-hair removal device has a sealing member which is provided so as to surround the 1 st heat radiation member and the periphery of the vent hole and seals the enclosed space from the space between the housing and the case.

8. The photo-epilation device of any one of claims 1-5, wherein,

the unhairing device comprises a 1 st heat radiating component which is arranged at the periphery of the shell and radiates the heat in the shell to the outside,

the housing has a recess recessed toward the outer peripheral portion of the case,

the 1 st heat radiating member is exposed at the bottom surface of the recess.

9. A photo-epilation device in accordance with any one of claims 6-8, wherein,

the 1 st heat radiating member is a heat radiator,

the 1 st heat radiating member has a plurality of fins formed to protrude toward an inner peripheral surface side of the case.

10. A photo-epilation device in accordance with any one of claims 6-9, wherein,

the optical depilation device has a 2 nd heat radiation member which is provided at a position of the inner peripheral portion of the housing corresponding to a position where the 1 st heat radiation member is provided, and which radiates heat inside the housing to the outside.

11. The photo-epilation device of claim 10, wherein,

the 2 nd heat dissipation member is a heat sink,

the 2 nd heat radiating member has a plurality of fins formed to protrude in an inner direction of the housing.

12. A photo-epilation device in accordance with claim 10 or 11, wherein,

The 1 st heat radiating member and the 2 nd heat radiating member are integrally formed members.

13. The photo-epilation device of any one of claims 9-12, wherein,

grooves are formed between the fins so as to protrude toward the base in a cross-sectional shape.