CN218960918U - Dehairing instrument - Google Patents

Abstract

The utility model relates to a dehairing instrument which comprises a shell, a light source component and an induction piece, wherein the shell comprises a housing and a contact part connected with the housing, the contact part is provided with a light emitting area for emitting light, the light source component is arranged in the housing and is arranged corresponding to the light emitting area, the induction piece extends along the circumferential direction of the light emitting area, and the induction piece is clamped between the edge of the contact part and the edge of the housing. The contact part used for contacting with the skin can be made of metal or nonmetal, the induction piece has smaller induction area relative to the contact part, the single-point or small-area contact of the skin and the contact part is not easy to trigger the starting of the light source component, the contact part needs to be fully contacted with the skin to meet the induction condition of the induction piece so as to trigger the light source component, therefore, the probability of false touch can be reduced, and the false touch prevention performance of the depilatory instrument is ensured.

Description

Dehairing instrument

Technical Field

The utility model relates to the technical field of beauty treatment instruments, in particular to a dehairing instrument.

Background

The laser dehairing instrument can irradiate the skin by utilizing the laser emitted by the light source component, and the melanin of the hair is converted into heat energy to penetrate into hair follicles after absorbing the laser energy, so that the skin hair follicles are damaged, and the dehairing effect is achieved. In the related art, a laser dehairing instrument generally adopts a metal sheet with an opening structure to form a light outlet for emitting light, the metal sheet can be used for sensing skin contact and generating a trigger signal, and the laser dehairing instrument can respond to the trigger signal to start a light source assembly so as to realize automatic control.

However, the area of the metal sheet forming the light outlet is generally larger, and the single point or small area contact will cause the triggering and starting of the light source assembly to generate a flash, that is, the false touch is easily caused.

Disclosure of Invention

The embodiment of the utility model provides a dehairing instrument, which is used for improving the false touch prevention performance of the dehairing instrument.

An epilator comprising:

a housing including a cover and a contact portion connected to the cover, the contact portion having a light-exiting region for exiting light;

the light source component is arranged in the housing and corresponds to the light emergent region; and

the sensing piece extends along the circumferential direction of the light emergent area and is clamped between the edge of the contact part and the edge of the housing.

In one embodiment, the sensing piece is annular and is disposed around the light emitting area.

In one embodiment, the contact part comprises a boss and a flange extending along the circumferential direction of the boss, and the boss is provided with the light emergent region; the housing comprises a body and a retainer ring connected to one end of the body, the retainer ring is provided with a mounting hole, the boss penetrates through the mounting hole, and the induction piece is clamped between the flange and the retainer ring.

In one embodiment, the contact is a metal contact, and the epilator comprises a first semiconductor refrigeration member disposed in the housing, the first semiconductor refrigeration member being attached to the contact.

In one embodiment, the dehairing instrument comprises a crystal and a second semiconductor refrigerating piece, wherein the crystal and the second semiconductor refrigerating piece are arranged in the housing, the crystal is arranged corresponding to the light emitting area and the light source assembly, the first semiconductor refrigerating piece is arranged on one side of the crystal, and the second semiconductor refrigerating piece is attached to the opposite side of the crystal.

In one embodiment, the epilating apparatus comprises a heat dissipation member and a fan, wherein the heat dissipation member and the fan are arranged in the housing, the first semiconductor refrigeration member and the second semiconductor refrigeration member are respectively connected to the heat dissipation member, the fan is provided with a first air port and a second air port, the first air port is communicated to the heat dissipation member, and the second air port is communicated to the outside.

In one embodiment, the fan comprises a housing and a driving piece connected to the housing, wherein the housing is connected to the housing and is enclosed with the housing to form a containing cavity for containing the driving piece and the first air port communicated with the containing cavity.

In one embodiment, the epilator comprises a mounting bracket provided in the housing, the mounting bracket having a mounting cavity for mounting the light source assembly, the mounting cavity being in communication with the first air port and being spaced apart from the heat sink.

In one embodiment, the light source assembly comprises a reflector plate and a light emitting member arranged in the mounting cavity, the reflector plate forms a groove, and the light emitting member is accommodated in the groove and is attached to the reflector plate.

In one embodiment, the light source assembly comprises a protecting sleeve and a baffle plate, the protecting sleeve is sleeved at two opposite ends of the light emitting piece, the baffle plate is connected with two opposite ends of the reflecting plate, the baffle plate and the reflecting plate form a through hole for penetrating the light emitting piece, and the width of the through hole is larger than that of the light emitting piece so that the first air port is communicated with the groove.

The dehairing instrument has at least the following beneficial effects:

because the appearance that moults includes casing, light source subassembly and response piece, the casing includes the housing and connects in the contact portion of housing, the contact portion has the light-emitting area that is used for the light-emitting, the light source subassembly is located in the housing and the light-emitting area corresponds the setting, the response piece extends along the circumference of light-emitting area, and the response piece centre gripping is between the edge of contact portion and the edge of housing, a contact portion for with skin contact can adopt metal or nonmetal to make, the response piece has less response area relative to the contact portion, the skin is difficult to trigger the start of light source subassembly with single point or the small area contact of contact portion, the contact portion needs to fully contact with the skin just can trigger the light source subassembly with satisfying the response condition of response piece, consequently, can reduce the probability of mistake touching, guarantee the mistake touch-proof performance of appearance moults.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of an epilator in an embodiment;

FIG. 2 is an exploded view of the epilator shown in FIG. 1;

FIG. 3 is a front view of the epilator shown in FIG. 1;

FIG. 4 is a cross-sectional view of the epilator illustrated in FIG. 3 taken along line A-A;

FIG. 5 is a side view of the epilator illustrated in FIG. 1;

FIG. 6 is a cross-sectional view of the epilator illustrated in FIG. 5, taken along B-B;

FIG. 7 is a schematic view of the epilator shown in FIG. 1 with a portion of the structure removed;

fig. 8 is a cross-sectional view of the epilator shown in fig. 5 taken along C-C.

Reference numerals:

10. a dehairing instrument; 11. a housing; 111. a housing; 111a, ventilation slits; 111b, first air holes; 111c, second air holes; 111d, third air holes; 1111. a body; 1113. a retainer ring; 1113a, mounting hole 113, contact; 113a, light-emitting region; 1131. a boss; 1133. a flange; 12. a light source assembly; 121. a light reflecting plate; 121a, grooves; 123. a light emitting member; 125. a protective sleeve; 127. a baffle; 13. an induction piece; 141. a circuit board; 143. an energy storage capacitor; 15. a refrigeration assembly; 151. a first semiconductor refrigeration member; 153. a second semiconductor refrigeration member; 16. a crystal; 171. a heat sink; 173. a fan; 173a, a first tuyere; 173b, a second tuyere; 173c, a receiving cavity; 1731. a housing; 1733. a driving member; 18. a mounting frame; 18a, mounting cavity.

Detailed Description

In order that the utility model may be readily understood, a more complete description of the utility model will be rendered by reference to the appended drawings. Preferred embodiments of the present utility model are shown in the drawings. This utility model may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1, the present utility model discloses a depilatory device 10, wherein the depilatory device 10 can be used to emit light and irradiate the skin to remove hair from the surface of the body.

Referring to fig. 2, 3 and 4, the epilator 10 includes a housing 11, a light source assembly 12 and a sensing piece 13, the housing 11 being hollow and including a casing 111 and a contact portion 113 connected to the casing 111, the contact portion 113 having a light-emitting region 113a for emitting light. The light source assembly 12 is disposed in the housing 111 and corresponds to the light emitting region 113a, the sensing piece 13 extends along the circumferential direction of the light emitting region 113a, and the sensing piece 13 is clamped between the edge of the contact portion 113 and the edge of the housing 111. The epilation apparatus 10 may further include a circuit board 141 and an energy storage capacitor 143 disposed in the housing 111, where the circuit board 141 is integrated with a control circuit, a controller, a power management unit, etc., the energy storage capacitor 143 and the sensing piece 13 are electrically connected to the circuit board 141, respectively, and the energy storage capacitor 143 is used to supply power to the light source assembly 12, the sensing piece 13, etc. It is understood that the light emitting region 113a may be a hole structure, or may be a region defined by a transparent member such as transparent glass or transparent plastic.

In some embodiments, the contact portion 113 may be made of a metal material having relatively good heat conduction properties, such as copper or stainless steel. The epilating apparatus 10 may further comprise a cooling assembly 15 arranged in the housing 111, the cooling assembly 15 being connected to the contact portion 113 and being adapted to cool the contact portion 113 in order to reduce the temperature of the contact portion 113. In some embodiments, the refrigeration assembly 15 may include a first semiconductor refrigeration member 151, and the first semiconductor refrigeration member 151 may include an electric couple layer made of N, P semiconductor thermoelectric materials, and when a voltage is applied thereto, a temperature difference may be formed between opposite ends of the electric couple layer, that is, a hot surface having a relatively high temperature and a cold surface having a relatively low temperature may be formed, and heat of the cold surface may be conducted to the hot surface.

During normal operation of the epilation apparatus 10, the light source assembly 12 is energized to emit light, which is emitted from the light emitting region 113a and can be irradiated to the skin of a user to remove hairs from the surface of the human body. In this process, the contact portion 113 of the metal material may be adhered to the skin of the user, so as to perform a cold compress on the skin, and reduce or even avoid burning sensation caused by light.

In other embodiments, the contact portion 113 may be made of a non-metal material, such as plastic, and the epilator 10 may include a crystal 16 disposed in the light emitting area 113a, where the crystal 16 is disposed corresponding to the light source assembly 12, and the crystal 16 may be sapphire. The surface of the crystal 16 may be exposed to the outside for contact with the skin. The crystals 16 can filter blue light harmful to the skin and can enhance the appearance characteristics of the epilator 10 and beautify the appearance of the epilator 10. In this embodiment, the cooling assembly 15 may include a second semiconductor cooling member 153 electrically connected to the circuit board 141, and the second semiconductor cooling member 153 operates in a similar manner to the first semiconductor cooling member 151, and may be connected to the crystal 16 and used for cooling the crystal 16 to reduce the temperature of the crystal 16. During normal operation of the epilator 10, the light source assembly 12 is energized to emit light, which is emitted from the crystal 16 and can be applied to the skin of a user to remove hair from the surface of the body. In this process, the crystals 16 may be applied to the skin of the user, which may be used for cold compress, reducing or even avoiding burning sensation caused by light. In the embodiment where the contact portion 113 is made of a nonmetallic material, the first semiconductor refrigerating element 151 may be default, and the crystal 16 may be used to contact the skin to exert a cold compress effect.

In the embodiment of the present utility model, the crystal 16 has a substantially rectangular block shape, the first semiconductor cooler 151 is provided on one side of the crystal 16 and is bonded to the contact portion 113 of the metal material, and the second semiconductor cooler 153 is bonded to the opposite side of the crystal 16. During operation of the epilator 10, the first semiconductor cooling element 151 is used for reducing the temperature of the contact portion 113, so that the contact portion 113 can have a good cold compress effect on the skin, and the second semiconductor cooling element 153 is used for reducing the temperature of the crystal 16, so as to prevent overheating of the crystal 16. Of course, the surface of the crystal 16 can also contact the skin to increase the cold compress area, thereby achieving better cold compress effect and improving the comfort of use. It will be appreciated that crystal 16 may be default.

With continued reference to fig. 2 and 4, the contact portion 113 includes a boss 1131 and a flange 1133 extending along a circumferential direction of the boss 1131, the boss 1131 has a light emitting region 113a, and the crystal 16 is disposed through the boss 1131. The housing 111 includes a body 1111 and a retainer 1113 connected to one end of the body 1111, the retainer 1113 has a mounting hole 1113a, the boss 1131 is disposed through the mounting hole 1113a, and the sensing piece 13 is clamped between the flange 1133 and the retainer 1113. In the embodiment shown in fig. 4, the width of the flange 1133 is greater than the width of the mounting hole 1113a, and during the assembly of the contact portion 113, the sensing piece 13 and the housing 111, the sensing piece 13 may be assembled to the flange 1133 first, and then the contact portion 113 is extended out of the mounting hole 1113a from the housing 111, so as to prevent the contact portion 113 from easily coming out of the mounting hole 1113a, i.e., in this embodiment, the retaining ring 1113 of the housing 111 shields the sensing piece 13.

In other embodiments, during the assembly of the contact portion 113, the sensing piece 13 and the housing 111, the sensing piece 13 may be assembled to the flange 1133 first, and then the contact portion 113 may be protruded from the housing 111 into the mounting hole 1113a, and the contact portion 113 may be prevented from easily coming out of the mounting hole 1113a by bonding or screwing. In such an embodiment, the sensing piece 13 may be shielded by the flange 1133 of the contact 113.

In some embodiments, the sensing piece 13 is annular and disposed around the light emitting region 113a. The sensing piece 13 can be made of a thin metal sheet, a flexible circuit board 141, a printed circuit board 141 or the like, and when the skin of a user contacts the contact portion 113, the sensing piece 13 can detect the change of the capacitance so as to generate a trigger signal; the controller of the epilator 10 may respond to the trigger signal and activate the light source assembly 12 such that the epilator 10 is put into operation.

Since the sensing piece 13 is clamped between the edge of the contact portion 113 and the edge of the housing 111, the contact portion 113 for contacting the skin can be made of metal or nonmetal, the sensing piece 13 has a smaller sensing area relative to the contact portion 113, and the single-point or small-area contact of the skin with the contact portion 113 is not easy to trigger the activation of the light source assembly 12. For example, in the use process, the skin needs to be attached to the contact portion 113 corresponding to the sensing area of the sensing piece 13 to trigger the activation of the light source assembly 12, that is, the contact portion 113 needs to be in sufficient contact with the skin to meet the sensing condition of the sensing piece 13 to trigger the light source assembly 12, so that the probability of false touch can be reduced, and the false touch preventing performance of the epilator 10 is ensured.

Further, by providing the sensing piece 13, the size of the skin contact area can be identified by the change of the electrical signal, so that the sensing sensitivity can be set, that is, the controller of the epilating apparatus 10 responds to the trigger signal only when the area of the skin contact area is larger than a certain threshold value, and the light source assembly 12 is started, thereby achieving a better false touch prevention effect.

Referring to fig. 2, the epilator 10 may further include a heat sink 171 disposed in the housing 111 and a fan 173, wherein the fan 173 is electrically connected to the circuit board 141. The heat surface of the first semiconductor refrigeration member 151 and the heat surface of the second semiconductor refrigeration member 153 are respectively connected to the heat dissipation member 171, the fan 173 has a first air port 173a and a second air port 173b, the first air port 173a is communicated with the heat dissipation member 171, and the second air port 173b is communicated with the outside. Further, the casing 111 may be provided with a ventilation slit 111a, a first air hole 111b, a second air hole 111c and a third air hole 111d, the ventilation slit 111a is relatively long and narrow, has a smaller width and is communicated with the second air port 173b, the first air hole 111b and the ventilation slit 111a are disposed at the same side of the casing 111, and the second air hole 111c is disposed at the other side of the casing 111. The contact portion 113 is provided at one end of the housing 111, and the third air hole 111d is provided at the opposite end of the housing 111.

The heat dissipation element 171 may be made of a material with relatively good heat conduction performance, such as aluminum alloy or copper, and may have a plurality of fins arranged at intervals to increase the surface area of the heat dissipation element 171, so as to improve the heat dissipation performance of the heat dissipation element 171. The heat sink 171 may also be provided with a plurality of holes to increase the heat dissipation surface area and facilitate the flow of gas. During operation of the epilator 10, the fan 173 may draw air from the ventilation slit 111a and guide the air to sequentially flow through the second air opening 173b, the first air opening 173a, the heat dissipation member 171 and the first air hole 111b, so as to dissipate heat of the heat surface of the first semiconductor refrigeration member 151 and heat of the heat surface of the second semiconductor refrigeration member 153 to further maintain a low temperature state of the crystal 16 and the contact portion 113 of the metal material. Of course, the fan 173 may also guide air entering from the first air hole 111b and sequentially flowing through the heat dissipation member 171, the first air port 173a, the second air port 173b, the heat dissipation member 171 and the air vent 111a, thereby dissipating heat from the heat dissipation member 171.

In this process, a part of the air sucked through the ventilation slit 111a or sucked through the first air hole 111b may further flow through the electronic components such as the circuit board 141 and the energy storage capacitor 143, and flow out from the third air hole 111d, so as to dissipate heat from the circuit board 141 and the electronic components thereon and the energy storage capacitor 143, and prevent the electronic components from having too high temperature, so as to ensure the operational reliability of the epilation instrument 10.

Referring to fig. 5 and 6, in some embodiments, the fan 173 may include a housing 1731 and a driving member 1733 connected to the housing 1731, the driving member 1733 being configured to be energized to rotate to disturb the airflow, and guide the airflow in the housing 111, the housing 1731 being connected to the housing 111 and enclosing with the housing 111a receiving cavity 173c receiving the driving member 1733 and a first air port 173a communicating with the receiving cavity 173 c. In other words, in this embodiment, a part of the housing of the fan 173 may be formed by the casing 111 to simplify the structure of the fan 173, save materials and make the layout of the components inside the epilator 10 more compact.

Referring to fig. 7 and 8, the epilator 10 may further comprise a mounting frame 18 provided in the housing 111, the mounting frame 18 having a mounting cavity 18a for mounting the light source assembly 12, the mounting cavity 18a being in communication with the first air port 173a and being spaced apart from the heat sink 171, and the mounting cavity 18a being in communication with the second air hole 111c. Since the mounting cavity 18a is separated from the heat dissipation member 171, the air heated in the heat dissipation member 171 is prevented from entering the mounting cavity 18a to reduce the heat dissipation effect on the light source assembly 12; of course, this structure also prevents the heated air in the mounting chamber 18a from flowing back to the heat sink 171 to reduce the heat dissipation efficiency of the heat sink 171.

Specifically, referring to fig. 2 and 4, the light source assembly 12 may include a light reflecting plate 121 disposed in the mounting cavity 18a, and a light emitting member 123, where the light reflecting plate 121 forms a groove 121a, and the light emitting member 123 is accommodated in the groove 121a and is adhered to the light reflecting plate 121. The light emitting element 123 may be a lamp, and may be electrically connected to the circuit board 141. The reflective plate 121 is made of aluminum alloy, and a side of the reflective plate facing the light emitting member 123 can be processed into a curved surface with higher reflectivity, so as to reflect the lateral and back light rays of the light emitting member 123 to the light emitting region 113a, thereby improving the light energy utilization rate. The cross section of the reflecting plate 121 may have a U shape. The light emitting part 123 is attached to the reflective plate 121, and the reflective plate 121 made of metal can be used as a triggering component of the light emitting part 123, so that compared with the arrangement that a metal wire is wound on the light emitting part 123 to serve as the triggering component, the blocking and absorption of the metal wire to the light of the light emitting part 123 can be reduced, and the utilization rate of light energy can be improved.

The light emitting member 123 is attached to the reflective plate 121, so that the size of the light source assembly 12 in the light emitting direction can be shortened, the structural compactness of the light source assembly 12 is improved, and the structural compactness of the epilator 10 is further improved. The default wire structure also allows the appearance of light source assembly 12 to be more compact and improves the appearance characteristics of epilator 10 when a user views epilator 10 through crystal 16.

With continued reference to fig. 2 and 4, the light source assembly 12 may further include a protecting sleeve 125 and a blocking piece 127, wherein the protecting sleeve 125 is sleeved at two opposite ends of the light emitting member 123, the blocking piece 127 is connected at two opposite ends of the light reflecting plate 121, the blocking piece 127 and the light reflecting plate 121 form a through hole for penetrating the light emitting member 123, and the width of the through hole is greater than that of the light emitting member 123 so that the first air port 173a is communicated with the groove 121a. The material of the protecting sleeve 125 may be rubber, which can absorb the light at two ends of the light emitting element 123, reduce the light escaping from two ends of the light emitting element 123, and reduce the adverse effect of the light on the surrounding housing 111 or other components; on the other hand, the protective sleeve 125 can also have an anti-creeping effect, so that the working reliability of the depilating apparatus 10 is improved.

The material of the baffle 127 may be the same as that of the reflector 121, and a side of the baffle facing the middle of the light-emitting member 123 may be processed into a reflective surface with high reflectivity, so as to reflect part of the light at two ends of the light-emitting member 123 back to the groove 121a of the reflector 121, thereby improving the light energy utilization rate and reducing the adverse effect of the light at two ends of the light-emitting member 123 on the surrounding housing 111 or other components. The baffle 127 and the reflecting plate 121 form a through hole, and the width of the through hole is larger than that of the light emitting piece 123 so that the first air port 173a is communicated with the groove 121a, and air in the groove 121a and air in the first air port 173a can flow, so that heat dissipation of the light emitting piece 123 and the reflecting plate 121 is facilitated, and the working reliability of the light source assembly 12 is improved.

The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The above examples illustrate only a few embodiments of the utility model, which are described in detail and are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.

Claims (10)

1. An epilator, comprising:

a housing including a cover and a contact portion connected to the cover, the contact portion having a light-exiting region for exiting light;

the light source component is arranged in the housing and corresponds to the light emergent region; and

the sensing piece extends along the circumferential direction of the light emergent area and is clamped between the edge of the contact part and the edge of the housing.

2. The epilator as recited in claim 1, wherein the sensing piece is annular and is disposed around the light exit region.

3. The epilator as claimed in claim 2, wherein the contact portion comprises a boss and a flange extending in a circumferential direction of the boss, the boss having the light-exiting region; the housing comprises a body and a retainer ring connected to one end of the body, the retainer ring is provided with a mounting hole, the boss penetrates through the mounting hole, and the induction piece is clamped between the flange and the retainer ring.

4. A depilatory device according to any of claims 1 to 3, wherein the contact is a metal contact, the depilatory device comprising a first semiconductor refrigeration member disposed within the housing, the first semiconductor refrigeration member being in contact with the contact.

5. The epilation instrument of claim 4, comprising a crystal disposed within the housing and a second semiconductor refrigeration member, the crystal disposed in correspondence with the light extraction region and the light source assembly, the first semiconductor refrigeration member disposed on one side of the crystal, the second semiconductor refrigeration member being bonded to an opposite side of the crystal.

6. The epilation instrument of claim 5, comprising a heat sink and a fan disposed within the housing, the first semiconductor cooling element and the second semiconductor cooling element being respectively coupled to the heat sink, the fan having a first air port and a second air port, the first air port being in communication with the heat sink, the second air port being in communication with the outside.

7. The epilation apparatus as claimed in claim 6, wherein the fan comprises a housing and a driving member connected to the housing, the housing being connected to the casing and enclosing with the casing a housing cavity housing the driving member and the first air port communicating with the housing cavity.

8. The epilator as recited in claim 6, comprising a mounting bracket disposed within the housing, the mounting bracket having a mounting cavity for mounting the light source assembly, the mounting cavity being in communication with the first air port and being spaced apart from the heat sink.

9. The epilator as recited in claim 8, wherein the light source assembly comprises a reflector plate disposed in the mounting cavity and a light emitting member, the reflector plate forming a recess, the light emitting member being received in the recess and being attached to the reflector plate.

10. The epilator as recited in claim 9, wherein the light source assembly comprises a protective sleeve and a baffle, the protective sleeve is sleeved at opposite ends of the light emitting member, the baffle is connected to opposite ends of the light reflecting plate, the baffle and the light reflecting plate form a through hole for penetrating the light emitting member, and the width of the through hole is larger than that of the light emitting member so that the first air port is communicated with the groove.

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