CN219462347U - Beauty device - Google Patents

Abstract

The utility model provides a beauty device, which comprises a main body, wherein the main body is provided with a holding part and a working part, the working part comprises a light emitting component and a heat radiating component, the light emitting component comprises a first light-transmitting body, a light reflecting cup and a light source, a light reflecting cavity is formed between the light reflecting cup and the first light-transmitting body, and the light source is at least partially arranged in the light reflecting cavity; the heat radiation component comprises a heat radiation channel and a cooling driving part, the heat radiation channel is configured to enable a refrigerant to circulate in the heat radiation channel, and the refrigerant in the heat radiation channel is thermally coupled with the light reflection cavity; the cooling driving part is used for driving the refrigerant to flow in the heat dissipation channel; the heat dissipation channel comprises a first refrigerant inlet connected with the cooling driving part and a second refrigerant inlet connected with the reflecting cavity, and the area of the cross section of the heat dissipation channel is reduced from the first refrigerant inlet to the second refrigerant inlet. The heat dissipation channel of the utility model utilizes the principle of Laval pipe to accelerate the refrigerant to pass through in the reflecting cavity, so that the heat generated by the light source can be accelerated and taken away.

Description

Beauty device

Technical Field

The utility model belongs to the field of beauty treatment instruments, and particularly relates to a beauty treatment device with a good heat dissipation effect.

Background

Commercial beauty instruments or dehairing instruments mainly utilize strong pulse light with different wavelengths to irradiate the skin, so that the effect of dehairing or beauty is achieved, the single beauty or dehairing time is often longer, a large amount of heat is generated by the excitation of the strong pulse light, and the heat of the product needs to be dissipated in time in order to avoid burn of a user and stable work of the product. The existing product often cannot have good heat dissipation effect on the premise of miniaturization, and the use experience is poor.

Disclosure of Invention

The utility model aims to provide a cosmetic device, which aims to solve the technical problems that in the prior art, the heat dissipation effect of the cosmetic device is poor, the user is possibly burnt and the product work is unstable.

The present utility model provides a cosmetic device comprising a body having a grip portion and a working portion, the working portion comprising,

the light emitting assembly comprises a first light transmitting body, a light reflecting cup and a light source, a light reflecting cavity is formed between the light reflecting cup and the first light transmitting body, and the light source is at least partially arranged in the light reflecting cavity;

a heat dissipation assembly including a heat dissipation channel configured to circulate a refrigerant therein, the refrigerant in the heat dissipation channel being thermally coupled to the light reflecting cavity; the cooling driving part is used for driving the refrigerant to flow in the heat dissipation channel; the heat dissipation channel comprises a first refrigerant inlet connected with the cooling driving part and a second refrigerant inlet connected with the light reflecting cavity, wherein the area of the cross section of the heat dissipation channel is reduced from the first refrigerant inlet to the second refrigerant inlet.

Further, the ratio of the cross-sectional areas of the first refrigerant inlet and the second refrigerant inlet is 10-40.

Further, the ratio of the cross-sectional areas of the first refrigerant inlet and the second refrigerant inlet is 20-35.

Further, the second refrigerant inlet is arranged at one side of the reflecting cup, which is close to the first light-transmitting body.

Further, the second refrigerant inlet is a long and narrow hole arranged on the reflecting cup, and the length direction of the long and narrow hole is consistent with the length direction of the reflecting cup; or alternatively, the process may be performed,

the second refrigerant inlet is a long and narrow gap arranged on the light reflecting cup, and the length direction of the long and narrow gap is consistent with the length direction of the light reflecting cup.

Further, the second refrigerant inlet is a long and narrow hole arranged on the reflecting cup, the long and narrow hole is composed of a plurality of through holes, and the plurality of through holes are arranged in an array mode approximately along the length direction of the reflecting cup.

Further, the heat dissipation channel further comprises a first refrigerant outlet, and the first refrigerant outlet is communicated with the light reflection cavity; the cross-sectional area of the heat dissipation channel tends to decrease from the second refrigerant inlet to the first refrigerant outlet, or the cross-sectional area of the heat dissipation channel tends to increase and then tends to decrease.

Further, the cross-sectional area of the second refrigerant inlet and the cross-sectional area of the first refrigerant outlet are equal.

Further, the second refrigerant inlet and the first refrigerant inlet are oppositely arranged at two end faces of the reflecting cup, which are close to the first light-transmitting body.

Further, the first refrigerant outlet is a long and narrow hole arranged on the reflecting cup, and the length direction of the long and narrow hole is consistent with the length direction of the reflecting cup; or alternatively, the process may be performed,

the first refrigerant outlet is a long and narrow gap arranged on the light reflecting cup, and the length direction of the long and narrow gap is consistent with the length direction of the light reflecting cup.

Further, the first refrigerant outlet is a long and narrow hole arranged on the reflecting cup, the long and narrow hole is composed of a plurality of through holes, and the plurality of through holes are arranged in an array mode approximately along the length direction of the reflecting cup.

Further, the working part further comprises a second light-transmitting body arranged on one side of the first light-transmitting body, which is away from the reflecting cup, and pulse light generated by the light source sequentially passes through the first light-transmitting body and the second light-transmitting body;

the heat dissipation assembly further comprises a heat dissipation sheet group which is thermally coupled with the second light transmission body; the cooling driving part is also used for outputting the cooling medium to the radiating fin group.

Further, the cooling driving part comprises a first channel and a second channel, the first channel is used for communicating the first refrigerant inlet, and the outlet direction of the second channel faces the radiating fin group.

Further, the fin group includes the multiunit fin that the interval set up, the bottom of fin group sets up the samming board, the air inlet side of fin group is towards the second passageway.

Further, the radiating fin group is also provided with an air outlet side, and the positions of the air outlet side and the air inlet side are opposite; the air outlet side comprises a top air outlet and a lower air outlet which are communicated, and the lower air outlet faces the first refrigerant inlet.

Further, the second light-transmitting body is a crystal.

Further, the heat dissipation assembly further comprises,

a refrigeration piece having a cold end and a hot end, the cold end thermally coupled to the second optically transparent body; the hot end is thermally coupled to the set of fins.

Further, the heat dissipation assembly further comprises,

and the temperature equalizing plate is arranged between the hot end of the refrigerating piece and the radiating fin group and is respectively and thermally coupled with the hot end and the radiating fin group.

Further, the heat dissipation assembly further comprises,

and the heat conduction piece is arranged between the hot end of the refrigeration piece and the radiating fin group and is respectively and thermally coupled with the hot end and the radiating fin group.

Further, the main body further comprises a plurality of grooves,

a bracket having a mounting cavity within which the working portion is mounted; the heat dissipation channel comprises a space in the light reflection cavity and a gap between the outer wall of the light reflection cup and the installation cavity.

Further, the heat dissipation channel further comprises a second refrigerant outlet, and the second refrigerant outlet is arranged on the bracket and is communicated with the mounting cavity.

Further, the second refrigerant outlets and the first refrigerant outlets are staggered.

Further, the heat dissipation channel further comprises a first refrigerant outlet, and the first refrigerant outlet is communicated with the light reflection cavity; the first refrigerant outlet is arranged at the end part of the reflecting cup.

Further, the heat dissipation channel between the first refrigerant inlet and the second refrigerant inlet is provided with a first wall surface arranged along a first direction, a second wall surface arranged along a second direction and an arc-shaped wall surface connecting the first wall surface and the second wall surface; wherein, the included angle range between the tangent line of the arc wall surface and the axial line of the length direction of the beauty device is 10 degrees to 90 degrees.

Compared with the prior art, the utility model has the beneficial effects that:

the flow velocity of the refrigerant is gradually slowed down from the first refrigerant inlet to the second refrigerant inlet, and after the refrigerant passes through the second refrigerant inlet, the flow velocity of the refrigerant is rapidly increased, and the principle of the utility model is similar to that of a Laval pipe, so that the refrigerant can be accelerated to pass through the reflective cavity, and therefore, the heat generated by the light source is also accelerated to be taken away, thereby improving the integral heat dissipation efficiency of the light emitting component.

Drawings

Fig. 1 is a schematic structural view of a beauty device according to an embodiment of the present utility model;

FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1;

FIG. 3 is an enlarged partial schematic view at B in FIG. 2;

fig. 4 is an exploded view of a cosmetic device according to an embodiment of the present utility model;

fig. 5 is a second exploded view of the beauty device according to the embodiment of the present utility model;

fig. 6 is a schematic structural diagram of a light emitting component according to an embodiment of the present utility model;

fig. 7 is a schematic structural diagram of a light emitting assembly combined with a second frame body according to an embodiment of the present utility model;

FIG. 8 is a cross-sectional view taken along line C-C of FIG. 7;

FIG. 8a is a schematic cross-sectional view of a light emitting assembly and a second frame when a first coolant outlet is provided at an end of a reflector cup according to an embodiment of the present utility model;

FIG. 8b is a schematic structural diagram of the first refrigerant outlet provided by the embodiment of the utility model when the first refrigerant outlet is arranged at the end of the reflector cup;

fig. 9 is a schematic structural diagram of the light emitting component according to the embodiment of the present utility model after the first transparent body is removed;

fig. 10 is a schematic diagram of a part of a combined structure of a light emitting component and a heat dissipating component according to an embodiment of the present utility model;

FIG. 11 is a cross-sectional view taken along line D-D of FIG. 10;

fig. 12 is a schematic structural view of a bracket according to an embodiment of the present utility model;

fig. 13 is a schematic view of a part of a heat dissipation channel according to an embodiment of the present utility model.

Reference numerals:

10. a main body; 20. a grip portion; 21. a housing; 211. a bottom case; 212. an upper cover; 2121. an air inlet; 2122. an air outlet; 213. a storage space; 214. a light-transmitting window; 22. a control circuit board; 23. a capacitor; 30. a working portion; 31. a light emitting assembly; 311. a first light-transmitting body; 312. a reflective cup; 3121. a first wall surface; 3122. a second wall surface; 3123. an arc-shaped wall surface; 313. a light source; 314. a reflective cavity; 32. a heat dissipation assembly; 321. a heat dissipation channel; 3211. a first refrigerant inlet; 3212. a second refrigerant inlet; 3213. a first refrigerant outlet; 3214. a second refrigerant outlet; 3215. a third refrigerant outlet; 322. a cooling driving part; 3221. a first channel; 3222. a second channel; 323. a heat sink group; 3231. a heat sink; 3232. an air outlet side; 3233. a top air outlet; 3234. a lower air outlet; 324. a refrigerating member; 325. a temperature equalizing plate; 326. a heat conductive member; 33. a second light-transmitting body; 34. a light pipe; 341. a light guide channel; 40. a bracket; 41. a mounting cavity; 411. a first frame body; 412. a second frame body; 4121. an insertion hole; 413. an accommodation space; 414. a light outlet hole; 4141. a clamping groove.

Detailed Description

The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

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 to 5, the embodiment of the utility model discloses a cosmetic device with good heat dissipation effect, which is particularly suitable for a laser dehairing instrument and a laser cosmetic instrument or other technical schemes for carrying out beauty treatment or skin care by using laser.

The beauty device comprises a main body 10, wherein the main body 10 is provided with a holding part 20 and a working part 30, the holding part 20 comprises a shell 21 for holding by a user, a control circuit board 22, a capacitor 23 and other components arranged in the shell 21, the working part 30 is arranged on the shell 21, the capacitor 23 and other components and the working part 30 are electrically connected with the control circuit board 22, and the degree of correlation between the holding part 20 and the purpose of the embodiment is low, and the description is omitted.

In this embodiment, the working portion 30 includes a light emitting component 31 and a heat dissipating component 32, wherein the light emitting component 31 is electrically excited to generate strong pulse light with a certain wavelength range, and if the strong pulse light irradiates the skin of the human body, the hair follicle on the skin can be destroyed, so as to realize the functions of skin care and hair removal.

Referring to the structure of the working portion 30 in the present embodiment, fig. 5 to 8 further show schematic structural diagrams of the light emitting assembly 31, wherein the light emitting assembly 31 includes a first transparent body 311, a reflective cup 312 and a light source 313, a reflective cavity 314 is formed between the reflective cup 312 and the first transparent body 311, the light source 313 is at least partially disposed in the reflective cavity 314, light generated by the light source 313 is converged in the reflective cavity 314, and is reflected by the reflective cup 312, and then projected to the first transparent body 311 for being filtered by the first transparent body 311.

The light emitting assembly 31 further comprises a light guide tube 34, the light guide tube 34 is arranged between the first light transmitting body 311 and the second light transmitting body 33, the light guide tube 34 is provided with a light guide channel 341 for converging light, the light emitted by the light source 313 is filtered by the first light transmitting body 311 and then converged in the light guide channel 341 and then emitted through the second light transmitting body 33, so that the light energy density is increased, and the light utilization efficiency is improved.

The inside diameter of the light guide channels 341 may be circular or square in configuration, with a reflective coating applied to the light guide 34 to reduce light loss within the light guide channels 341.

With continued reference to fig. 8, in the embodiment, the reflective cup 312 abuts against the first transparent body 311, and the reflective cup and the first transparent body enclose the reflective cavity 314; in some embodiments, however, the reflective cavity 314 is not limited to a closed or closed-off space, i.e., the reflective cup 312 and the first transparent body 311 may not abut each other, and a gap may exist therebetween; the reflective cavity 314 may be formed by enclosing the reflective cup 312 with other components in the cosmetic device, which does not affect the achievement of the object of the present embodiment.

Referring further to fig. 9, fig. 9 illustrates an internal structure of the light reflecting cup 312, wherein a light source 313 is disposed in the light reflecting cup 312, the light source 313 may be an electroluminescent device, such as an LED lamp, and a light emitting portion (such as an LED bead portion) of the light source 313 may be disposed in the light reflecting cavity 314, so as to facilitate the light path guiding of the light reflecting cup 312; the reflecting cup 312 has an inner arc or V-shaped reflecting surface (not labeled in the figure), and is preferably an inner arc, and after the light generated by the light source 313 irradiates the reflecting surface, the light is collected to the incident surface of the first transparent body 311 by the reflecting effect of the reflecting surface, and is emitted through the emitting surface of the first transparent body 311 (i.e. the right side of the first transparent body 311 in fig. 2); in some embodiments, the light source 313 may also be partially disposed within the light reflective cavity 314 to achieve a specific light exit objective.

It should be noted that, in some embodiments, the first transparent body 311 has a function of filtering light, and the light source 313 is excited to generate light with a wavelength range between 510 nm and 1200nm, and the first transparent body 311 is used to filter light with a partial wavelength range to obtain light with a desired wavelength range, where the light with the desired wavelength range may be 510 nm to 550nm or 530 nm to 600nm, for example, to achieve different purposes, such as skin care, depilation of different parts, depilation of different skin color people, and so on.

More specifically, the light emitted from the light source 313 may be monochromatic light, or may be composite light, color light, or the like; the self structure of the lamp can be either a lamp bead or a filament lamp or a filament-free lamp, and the purpose of the utility model can be achieved.

The material of the first light-transmitting body 311 may have various structural forms, for example:

in an embodiment, the material of the main body 10 of the first transparent body 311 is glass, wherein a side of the first transparent body 311 facing the light source 313 has a coating layer, and the filtering effect is achieved through the filtering effect of the coating layer.

In an embodiment, the first transparent body 311 may be a filter, as long as the purpose of the filtering effect of the present utility model can be achieved.

With continued reference to fig. 10 to 11, the heat dissipation assembly 32 includes a heat dissipation channel 321 and a cooling driving portion 322, wherein the cooling driving portion 322 can output a refrigerant, the heat dissipation channel 321 is configured to circulate the refrigerant therein, and the refrigerant in the heat dissipation channel 321 is thermally coupled with heat in the light reflection cavity 314; that is, the cooling driving portion 322 is used for driving the refrigerant to flow in the heat dissipation channel 321 to absorb the heat in the reflective cavity 314 and reduce the internal temperature.

Specifically, in one embodiment, the heat dissipation channel 321 may pass through the light reflecting cavity 314, so that the refrigerant may absorb the heat in the light reflecting cavity 314 to dissipate the heat of the light reflecting cavity 314, i.e. the above-mentioned thermal coupling; in one embodiment, the reflective cavity 314 may be formed as part of the heat dissipation channel 321; in an embodiment, the reflective cavity 314 and the heat dissipation channel 321 may be disposed adjacently, and if necessary, a heat conductive material, such as silicone grease, may be disposed therebetween to indirectly absorb heat in the reflective cavity 314, so as to achieve the thermal coupling.

With continued reference to the embodiment shown in fig. 8 and 11, the heat dissipation channel 321 includes a first refrigerant inlet 3211 connected to the cooling driving portion 322 and a second refrigerant inlet 3212 connected to the reflective cavity 314, where the cross-sectional area of the heat dissipation channel 321 decreases from the first refrigerant inlet 3211 to the second refrigerant inlet 3212. Therefore, the flow rate of the refrigerant will gradually decrease from the first refrigerant inlet 3211 to the second refrigerant inlet 3212, and after the refrigerant passes through the second refrigerant inlet 3212, the flow rate of the refrigerant will rapidly increase, which uses a principle similar to that of a laval tube, and may also be referred to as a laval air duct, and the heat generated by the light source 313 is accelerated and carried away due to the acceleration of the refrigerant passing through the reflective cavity 314, so as to improve the overall heat dissipation efficiency of the light emitting assembly 31.

The cross-sectional area of the heat dissipation channel 321 is reduced from the first coolant inlet 3211 to the second coolant inlet 3212. ' does not mean that the cross-sectional area is continuously reduced, but that the cross-sectional area is maintained constant in a partial area or that the cross-sectional area is increased and then decreased in order to achieve a specific structural design objective (e.g., to avoid installation space of other components); the decrease is the cross-sectional area of the second coolant inlet 3212 with respect to the heat dissipation channel 321, and the decrease is sufficient to accelerate the coolant.

The cooling driving part 322 may be a centrifugal fan or an axial flow fan or a mixed flow fan or a cross flow fan in this embodiment. Preferably, the cooling driving part 322 is a centrifugal fan, so that the external air flows mainly in a radial direction after axially entering the impeller of the fan, and the refrigerant is cooling air.

With continued reference to fig. 8, the ratio of the cross-sectional areas between the first coolant inlet 3211 and the second coolant inlet 3212 may have a variety of dimensional configurations after multiple passes:

in one embodiment, the ratio of the cross-sectional areas of the first refrigerant inlet 3211 and the second refrigerant inlet 3212 is 10-40, and according to the ratio of the areas of the test results 10-40, the refrigerant can generate a more obvious effect after passing through the second refrigerant inlet 3212, and the refrigerant flow in the reflector cup 312 is larger in unit time, so that the heat dissipation between the reflector cup 312 and the light source 313 is promoted.

In one embodiment, the ratio of the cross-sectional areas of the first coolant inlet 3211 and the second coolant inlet 3212 is 20-35, and the ratio of the areas of 20-35 according to the test results ensures that the coolant flow in the reflector cup 312 is not too low, and has a significant technical effect of accelerating the coolant flow, thereby promoting the heat dissipation of the reflector cup 312 and the light source 313.

The structure and function of the heat dissipation channel 321 are described in further detail below in conjunction with fig. 3, 8 and 11.

In this embodiment, the central axes of the air ports of the second refrigerant inlet 3212 and the first refrigerant inlet 3211 are substantially perpendicular at 90 degrees, the direction of the air path of the refrigerant changes under the action of the first transparent body 311 during the process of entering the second refrigerant inlet 3212 from the first refrigerant inlet 3211, and the second refrigerant inlet 3212 is disposed at one side of the reflective cup 312 close to the first transparent body 311, so that the refrigerant can quickly enter the second refrigerant inlet 3212.

The second refrigerant inlet 3212 may have various configurations:

in one embodiment, the second refrigerant inlet 3212 is a slot provided on the reflector cup 312, and the length direction of the slot is consistent with the length direction of the reflector cup 312, so that the refrigerant entering from the first refrigerant inlet 3211 can enter the reflector cavity 314 through the slot, so as to realize thermal coupling with the reflector cavity 314.

In an embodiment, the second refrigerant inlet 3212 is a slit disposed on the light reflecting cup 312, the length direction of the slit is consistent with the length direction of the light reflecting cup 312, the slit is closely attached to the first light-transmitting body 311, and the refrigerant entering from the first refrigerant inlet 3211 can enter the light reflecting cavity 314 through the slit to realize thermal coupling with the light reflecting cavity 314.

In one embodiment, when the second refrigerant inlet 3212 is a slot disposed on the reflector cup 312, the slot is composed of a plurality of vias, and the plurality of vias are arranged in an array along the length direction of the reflector cup 312, the refrigerant entering from the first refrigerant inlet 3211 can enter into the reflector cavity 314 through the plurality of vias, so as to realize thermal coupling with the reflector cavity 314.

In one embodiment, the heat dissipation channel 321 further includes a first refrigerant outlet 3213, and the first refrigerant outlet 3213 is communicated with the reflective cavity 314; the cross-sectional area of the heat dissipation channel 321 decreases from the second refrigerant inlet 3212 to the first refrigerant outlet 3213, and if the cross-sectional area between the first refrigerant inlet 3211 and the second refrigerant inlet 3212 increases again, the space between the first refrigerant inlet 3211 and the second refrigerant inlet 3212 is a laval air channel, and the reflective cavity 314 is considered as the initial segment of the next laval air channel.

In an embodiment, the heat dissipation channel 321 further includes a first refrigerant outlet 3213, the first refrigerant outlet 3213 is communicated with the reflective cavity 314, the reflective cavity 314 is a part of the heat dissipation channel 321, the cross-sectional area of the heat dissipation channel 321 decreases from the second refrigerant inlet 3212 to the first refrigerant outlet 3213, and if the cross-sectional area between the first refrigerant inlet 3211 and the second refrigerant inlet 3212 decreases, the reflective cavity 314 is between the first refrigerant inlet 3211 and the second refrigerant inlet 3212 and is an initial segment of the laval air duct.

In an embodiment, the heat dissipation channel 321 further includes a first refrigerant outlet 3213, the first refrigerant outlet 3213 is communicated with the reflective cavity 314, the reflective cavity 314 is a part of the heat dissipation channel 321, and the cross-sectional area of the heat dissipation channel 321 increases and decreases from the second refrigerant inlet 3212 to the first refrigerant outlet 3213, and at this time, if the cross-sectional area between the first refrigerant inlet 3211 and the second refrigerant inlet 3212 increases and decreases, the first cooling channel is between the first refrigerant inlet 3211 and the second refrigerant inlet 3212, and the reflective cavity 314 may be considered as a starting section of the next laval channel.

In an embodiment, the heat dissipation channel 321 further includes a first refrigerant outlet 3213, the first refrigerant outlet 3213 is communicated with the reflective cavity 314, the reflective cavity 314 is a part of the heat dissipation channel 321, and the cross-sectional area of the heat dissipation channel 321 increases and decreases from the second refrigerant inlet 3212 to the first refrigerant outlet 3213, and if the cross-sectional area between the first refrigerant inlet 3211 and the second refrigerant inlet 3212 is decreasing, the reflective cavity 314 is a laval air channel.

In this embodiment, the cross-sectional area of the second refrigerant inlet 3212 and the cross-sectional area of the first refrigerant outlet 3213 are equal, or the cross-sectional area of the second refrigerant inlet 3212 is slightly smaller than the cross-sectional area of the first refrigerant outlet 3213, or the cross-sectional area of the second refrigerant inlet 3212 is slightly larger than the cross-sectional area of the first refrigerant outlet 3213. The cross-sectional area of the second coolant inlet 3212 and the first coolant outlet 3213 does not affect whether the reflector cavity 314 is a laval tunnel.

The second refrigerant inlet 3212 and the first refrigerant inlet 3211 are disposed opposite to each other at two end surfaces of the reflector cup 312 near the first light-transmitting body 311 to define positions of the second refrigerant inlet 3212 and the first refrigerant outlet 3213, and at this time, the second refrigerant inlet 3212 and the first refrigerant outlet 3213 form convection so as to rapidly discharge heat in the light-reflecting cavity 314.

The first refrigerant outlet 3213 may have various structural forms, specifically:

in one embodiment, the first refrigerant outlet 3213 is a slot provided on the reflector cup 312, and the length direction of the slot is consistent with the length direction of the reflector cup 312.

In one embodiment, the first refrigerant outlet 3213 is a slit disposed on the reflector cup 312, and a length direction of the slit is consistent with a length direction of the reflector cup 312.

In one embodiment, the first coolant outlet 3213 is a slot disposed on the reflector cup 312, the slot is composed of a plurality of vias, and the plurality of vias are arranged in an array along the length direction of the reflector cup 312, and the heat in the reflector cavity 314 can be discharged out of the reflector cup 312 through the plurality of vias.

In other alternative embodiments, as shown in fig. 8a and 8b, the heat dissipation channel 321 includes a first refrigerant inlet 3211, a second refrigerant inlet 3212, and a first refrigerant outlet 3213a, where the first refrigerant outlet 3213a communicates with the reflective cavity 314, and the reflective cavity 314 is a part of the heat dissipation channel 321, unlike the above embodiment, the first refrigerant outlet 3213a is disposed at an end of the reflective cup 312, that is, along a cross-sectional direction of the reflective cup 312, and not along a length direction of the reflective cup 312, and more specifically, the first refrigerant outlet 3213a may be disposed only at any end of the reflective cup, that is, only one first refrigerant outlet 3213a is disposed at this time; alternatively, one first refrigerant outlet 3213a is provided at each end of the reflector cup 312, i.e., two first refrigerant outlets 3213a are provided. In this embodiment, the flow path of the air flow in the heat dissipation channel 321 sequentially flows through the first refrigerant inlet 3211, the second refrigerant inlet 3212, the light reflection cavity 314 and the first refrigerant outlet 3213a, and the heat in the light reflection cavity can be taken away by the embodiment in an accelerating manner, so as to achieve the purpose of rapid heat dissipation.

Referring to fig. 3, 5, 6 and 8, in the present embodiment, the working portion 30 further includes a second transparent body 33 disposed on a side of the first transparent body 311 facing away from the reflective cup 312, and the pulse light generated by the light source 313 sequentially passes through the first transparent body 311 and the second transparent body 33, so as to achieve the above-mentioned functions of skin care and hair removal.

The second transparent body 33 is a crystal, specifically, sapphire, K9 glass, and crystal glass, and only needs to satisfy the requirement of the transparent crystal, and in this embodiment, the second transparent body 33 is preferably made of a sapphire crystal material.

The surface of the second light-transmitting body 33 far from the first light-transmitting body 311 contacts with the human body, and the contact surface can be an arc surface or a plane, preferably a plane structure.

With continued reference to fig. 3 to 5, in the present embodiment, the heat dissipating component 32 further includes a heat dissipating fin set 323, the heat dissipating fin set 323 is thermally coupled to the second transparent body 33, and the heat dissipating fin set 323 can exchange heat with the second transparent body 33; the cooling driving portion 322 is further configured to output a refrigerant to the heat sink group 323, and the cooling driving portion 322 may cool the heat sink group 323 and indirectly cool the second transparent body 33.

As a preferred embodiment, the cooling driving part 322 includes a first channel 3221 and a second channel 3222, the cooling driving part 322 may output a refrigerant through the first channel 3221 and the second channel 3222, the first channel 3221 is used for communicating with the first refrigerant inlet 3211, and an outlet direction of the second channel 3222 faces the fin group 323 to cool the fin group 323.

In this embodiment, the fin group 323 includes a plurality of groups of fins 3231 arranged at intervals, the bottom of the fin group 323 is provided with a temperature equalizing plate 325, the air inlet side of the fin group 323 faces the second channel 3222, the temperature equalizing plate 325 has the function of conducting heat, and the temperature on the second transparent body 33 can be conducted to the fins 3231 through the temperature equalizing plate 325 to dissipate heat of the transparent body.

The fin group 323 also has an air outlet side 3232, and the air outlet side 3232 is opposite to the air inlet side; the air outlet side 3232 includes a top air outlet 3233 and a lower air outlet 3234, the lower air outlet 3234 faces the first refrigerant inlet 3211, the top air outlet 3233 and the lower air outlet 3234 are both communicated with the second channel 3222, and air in the cooling fins 3231 is exhausted from the top air outlet 3233.

In this embodiment, the heat dissipating assembly 32 further includes a cooling member 324, the cooling member 324 has a cold end and a hot end opposite to the cold end, the cold end is thermally coupled to the second transparent body 33, the hot end is thermally coupled to the heat dissipating fin set 323, and the cooling member 324 can cool the second transparent body 33 and transfer the heat on the second transparent body 33 to the heat dissipating fin set 323.

The cooling element 324 may be a TEC semiconductor thermoelectric cooling fin, and during operation of the cooling element 324, heat is continuously transferred as long as a temperature difference occurs between the cold and hot ends, and the heat is moved to the hot end and dissipated through the heat sink. Thus, the cooling element 324 is an active cooling device for the second light-transmitting body 33, but is only an active heat-conducting device for the entire device.

The heat dissipation assembly 32 further includes the above-mentioned temperature equalization plate 325, which is disposed between the hot end of the cooling member 324 and the heat dissipation plate group 323, and is thermally coupled with the hot end and the heat dissipation plate group 323 respectively, and the heat conduction effect of the temperature equalization plate 325 is improved by the method of setting the graphite sheet made of the graphene material on the temperature equalization plate 325 by means of pasting, electroplating, etc., and the graphene has very good heat conduction performance.

The heat dissipation component 32 further includes a heat conducting member 326 disposed between the hot end of the cooling member 324 and the heat dissipation fin set 323 and thermally coupled to the hot end and the heat dissipation fin set 323, respectively, and the heat on the cooling member 324 can be transferred to the heat dissipation fin set 323 through the heat conducting member 326, so that the heat dissipation component 32 dissipates heat, and the heat conducting member 326 is a temperature equalizing tube disposed in a ring shape.

Referring further to fig. 3, 4, 5, 12 and 13, in this embodiment, the main body 10 further includes a bracket 40, the bracket 40 has a mounting cavity 41, and the working portion 30 is mounted in the mounting cavity 41; the heat dissipation channel 321 includes a space in the light reflecting cavity 314 and a gap between the outer wall of the light reflecting cup 312 and the mounting cavity 41, and the bracket 40 may be separately provided or may be an integral component of the working portion 30 or the holding portion 20, and the bracket 40 does not necessarily need to be independent.

The bracket 40 comprises a first bracket body 411 and a second bracket body 412 connected with the first bracket body 411, the bracket 40 is provided with an accommodating space 413 and a light outlet hole 414 communicated with the accommodating space 413, the mounting cavity 41 comprises the accommodating space 413 and the light outlet hole 414, the light outlet assembly 31 is partially positioned in the accommodating space 413, the second light transmitting body 33 is positioned in the light outlet hole 414, and the first refrigerant inlet 3211 is arranged on the bracket 40.

The first frame 411 and the second frame 412 may be formed by screwing or by bonding the two together by glue, which is an embodiment, and the first frame 411 and the second frame 412 are assembled by a fastening manner of fastening and fastening, so that the first frame 411 and the second frame 412 can be quickly detached during the later maintenance.

The inner wall of the light outlet 414 is provided with a clamping groove 4141, the first transparent body 311 is clamped in the clamping groove 4141, the reflective cup 312 and the light source 313 are both positioned in the heat dissipation channel 321, and the reflective cup 312 is fixed on the inner wall of the heat dissipation channel 321.

Specifically, the bracket 40 is further provided with an insertion hole 4121 for inserting the heat sink group 323, the mounting cavity 41 further includes an insertion hole 4121, the insertion hole 4121 is communicated with the heat dissipation channel 321, one end of the heat sink group 323 is connected with the second transparent body 33, the other end passes through the insertion hole 4121 and is located in the heat dissipation channel 321, the heat sink group 323 located in the heat dissipation channel 321 is opposite to the cooling driving part 322, and the second transparent body 33 is cooled by the cooling driving part 322.

With continued reference to fig. 3 and 12, the heat dissipation channel 321 further includes a second refrigerant outlet 3214, where the second refrigerant outlet 3214 is disposed on the bracket 40 and is connected to the mounting cavity 41, and heat in the light reflection cavity 314 can be discharged from the first refrigerant outlet 3213 and then discharged from the second refrigerant outlet 3214.

As a preferred embodiment, the second refrigerant outlet 3214 and the first refrigerant outlet 3213 are staggered, which means that the second refrigerant outlet 3214 and the first refrigerant outlet 3213 are not projected in an overlapping manner along a preset axis direction and are not on the same axis in a vertical arrangement, and the positions of the two are not corresponding to each other, so as to avoid light emitted from the first refrigerant outlet 3213 from being emitted from the second refrigerant outlet 3214, and prevent light leakage.

In this embodiment, the second refrigerant outlets 3214 are staggered with the first refrigerant outlets 3213, and the air flows toward the back of the reflector cup 312 during the process of entering the second refrigerant outlets 3214 after the air comes out from the first refrigerant outlets 3213, so as to further improve the heat dissipation effect.

With continued reference to fig. 2, 3 and 13, the heat dissipation channel 321 between the first refrigerant inlet 3211 and the second refrigerant inlet 3212 has a first wall 3121 disposed along a first direction, a second wall 3122 disposed along a second direction, and an arc-shaped wall 3123 connecting the first wall 3121 and the second wall 3122; the included angle β between the tangent line of the arc wall 3123 and the axis of the length direction of the cosmetic device is in the range of 10 to 90 degrees, preferably 12 to 35 degrees, so that the cross-sectional area of the heat dissipation channel 321 of the segment is reduced, and in this embodiment, the first direction is the length direction of the housing 21, and the second direction is the thickness direction of the housing 21.

With continued reference to fig. 2 to 4, the housing 21 includes a bottom case 211 and an upper cover 212 fastened to the bottom case 211, the housing 21 is provided with a storage space 213, a light-transmitting window 214, an air inlet 2121 and an air outlet 2122, the light-transmitting window 214, the air inlet 2121 and the air outlet 2122 are all communicated with the storage space 213, the air inlet 2121 and the air outlet 2122 are all disposed on the upper cover 212, the air inlet 2121 is used for providing air for the cooling driving portion 322, the bracket 40 and the working portion 30 are both disposed in the storage space 213, the second light-transmitting body 33 penetrates through the light-transmitting window 214, the bracket 40 is further provided with a third refrigerant outlet 3215 opposite to the heat sink 3231, and the second refrigerant outlet 3214 and the third refrigerant outlet 3215 are opposite to the air outlet 2122.

Principle of operation of the cosmetic device:

the light emitted by the light source 313 is filtered by the first transparent body 311, and is collected in the light guide channel 341, and is emitted by the second transparent body 33 to dehairing the skin, at this time, the light source 313 emits heat, the temperature of the light acting on the skin is also led to the second transparent body 33, the heat in the second transparent body 33 is transferred to the refrigerating piece 324, and the refrigerating piece 324 transfers the heat to the radiating fin group 323;

the cooling driving part 322 can output a refrigerant, wherein a part of the refrigerant enters the first refrigerant inlet 3211 through the first channel 3221 and sequentially passes through the second refrigerant inlet 3212, the reflective cavity 314, the first refrigerant outlet 3213 and the second refrigerant outlet 3214 to take away heat in the reflective cavity 314, and simultaneously, the heat dissipation channel 321 outside the reflective cup 312 dissipates heat secondarily; the other part of the refrigerant radiates heat to the radiating fins 3231 through the second channel 3222, and then the heat is discharged from the third refrigerant outlet 3215, so as to take away the heat on the radiating fins 3231.

The beauty device provided by the utility model has the beneficial effects that:

1. the second transparent body 33 is exposed from the head of the housing 21 to be in actual contact with the skin of the human body, so that the user can feel the cold compress effect of the second transparent body 33 in the process of using the beauty device to dehairing, thereby reducing the strong pain caused by the heat of the user using the beauty device technology.

2. The second transparent body 33 is made of a crystal material, and may be made of sapphire, which has a strong heat conducting property, and can reduce the heat of the light emitted by the emitter of the beauty device and maintain the light transmittance.

3. The refrigerating member 324 can be a semiconductor refrigerating sheet of TEC, which can effectively improve the cooling effect of the beauty device.

4. The heat dissipation channel 321 includes a first refrigerant inlet 3211 connected to the cooling driving portion 322 and a second refrigerant inlet 3212 connected to the light reflecting cavity 314, wherein, from the first refrigerant inlet 3211 to the second refrigerant inlet 3212, the area of the cross section of the heat dissipation channel 321 is reduced, after the refrigerant passes through the second refrigerant inlet 3212, the flow velocity of the refrigerant is rapidly increased, and the principle of the heat dissipation channel is similar to that of a Laval pipe, so that the refrigerant is accelerated to pass through the light reflecting cavity 314, thereby greatly improving the heat dissipation efficiency.

5. The first coolant outlet 3213 is communicated with the light reflecting cavity 314, the light reflecting cavity 314 belongs to a part of a heat dissipating channel 321, the cross-sectional area of the heat dissipating channel 321 is increased and then reduced from the second coolant inlet 3212 to the first coolant outlet 3213, the flow rate of the coolant is increased rapidly, the principle of the coolant is similar to that of a Laval pipe, wind flows to the back of the light reflecting cup 312 after coming out from the first coolant outlet 3213, and the heat dissipating channel 321 dissipates heat secondarily, so that the heat dissipating effect is effectively improved.

6. The second refrigerant outlet 3214 is staggered with the first refrigerant outlet 3213, so that light leakage of light from the first refrigerant outlet 3213 by the light source 313 at the second refrigerant outlet 3214 can be effectively avoided, and air flows to the back surface of the reflector cup 312 in the process of entering the second refrigerant outlet 3214 after exiting from the first refrigerant outlet 3213, so that the heat dissipation effect is further improved.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, or alternatives falling within the spirit and principles of the utility model.

Claims (24)

1. A cosmetic device comprising a body having a grip portion and a working portion, the working portion comprising,

the light emitting assembly comprises a first light transmitting body, a light reflecting cup and a light source, a light reflecting cavity is formed between the light reflecting cup and the first light transmitting body, and the light source is at least partially arranged in the light reflecting cavity;

a heat dissipation assembly including a heat dissipation channel configured to circulate a refrigerant therein, the refrigerant in the heat dissipation channel being thermally coupled to the light reflecting cavity; the cooling driving part is used for driving the refrigerant to flow in the heat dissipation channel; the heat dissipation channel comprises a first refrigerant inlet connected with the cooling driving part and a second refrigerant inlet connected with the light reflecting cavity, wherein the area of the cross section of the heat dissipation channel is reduced from the first refrigerant inlet to the second refrigerant inlet.

2. The cosmetic device of claim 1, wherein the cosmetic device comprises,

the ratio of the cross-sectional areas of the first refrigerant inlet and the second refrigerant inlet is 10-40.

3. The cosmetic device of claim 2, wherein the cosmetic device comprises,

the ratio of the cross-sectional areas of the first refrigerant inlet and the second refrigerant inlet is 20-35.

4. The cosmetic device of claim 1, wherein the cosmetic device comprises,

the second refrigerant inlet is arranged at one side of the reflecting cup, which is close to the first light-transmitting body.

5. The cosmetic device according to claim 1 or 4, characterized in that,

the second refrigerant inlet is a long and narrow hole arranged on the reflecting cup, and the length direction of the long and narrow hole is consistent with the length direction of the reflecting cup; or alternatively, the process may be performed,

the second refrigerant inlet is a long and narrow gap arranged on the light reflecting cup, and the length direction of the long and narrow gap is consistent with the length direction of the light reflecting cup.

6. The cosmetic device of claim 5, wherein the cosmetic device comprises,

the second refrigerant inlet is a long and narrow hole arranged on the reflecting cup, the long and narrow hole consists of a plurality of through holes, and the plurality of through holes are arranged in an array mode approximately along the length direction of the reflecting cup.

7. The cosmetic device of claim 1, wherein the cosmetic device comprises,

the heat dissipation channel further comprises a first refrigerant outlet, and the first refrigerant outlet is communicated with the light reflection cavity; the cross-sectional area of the heat dissipation channel tends to decrease from the second refrigerant inlet to the first refrigerant outlet, or the cross-sectional area of the heat dissipation channel tends to increase and then tends to decrease.

8. The cosmetic device of claim 7, wherein the cosmetic device comprises,

the cross-sectional area of the second refrigerant inlet and the cross-sectional area of the first refrigerant outlet are equal.

9. The cosmetic device of claim 7, wherein the cosmetic device comprises,

the second refrigerant inlet and the first refrigerant inlet are oppositely arranged on two end faces, close to the first light-transmitting body, of the light reflecting cup.

10. The cosmetic device of claim 7, wherein the cosmetic device comprises,

the first refrigerant outlet is a long and narrow hole arranged on the reflecting cup, and the length direction of the long and narrow hole is consistent with the length direction of the reflecting cup; or alternatively, the process may be performed,

the first refrigerant outlet is a long and narrow gap arranged on the light reflecting cup, and the length direction of the long and narrow gap is consistent with the length direction of the light reflecting cup.

11. The cosmetic device of claim 7, wherein the cosmetic device comprises,

the first refrigerant outlet is a long and narrow hole arranged on the reflecting cup, the long and narrow hole consists of a plurality of through holes, and the plurality of through holes are arranged in an array mode approximately along the length direction of the reflecting cup.

12. The cosmetic device of claim 1, wherein the cosmetic device comprises,

the working part further comprises a second light-transmitting body arranged on one side, away from the reflecting cup, of the first light-transmitting body, and pulse light generated by the light source sequentially penetrates through the first light-transmitting body and the second light-transmitting body;

the heat dissipation assembly further comprises a heat dissipation sheet group which is thermally coupled with the second light transmission body; the cooling driving part is also used for outputting the cooling medium to the radiating fin group.

13. The cosmetic device of claim 12, wherein the cosmetic device comprises,

the cooling driving part comprises a first channel and a second channel, the first channel is used for communicating the first refrigerant inlet, and the outlet direction of the second channel faces the radiating fin group.

14. The cosmetic device of claim 13, wherein the cosmetic device comprises,

the heat radiating fin group comprises a plurality of groups of heat radiating fins which are arranged at intervals, a temperature equalizing plate is arranged at the bottom of the heat radiating fin group, and the air inlet side of the heat radiating fin group faces the second channel.

15. The cosmetic device of claim 14, wherein the cosmetic device comprises,

the radiating fin group is also provided with an air outlet side, and the positions of the air outlet side and the air inlet side are opposite; the air outlet side comprises a top air outlet and a lower air outlet which are communicated, and the lower air outlet faces the first refrigerant inlet.

16. The cosmetic device of claim 12, wherein the cosmetic device comprises,

the second light-transmitting body is a crystal.

17. The cosmetic device of claim 12, wherein the heat sink assembly further comprises,

a refrigeration piece having a cold end and a hot end, the cold end thermally coupled to the second optically transparent body; the hot end is thermally coupled to the set of fins.

18. The cosmetic device of claim 17, wherein the cosmetic device comprises,

the heat dissipation assembly may further comprise a heat sink,

and the temperature equalizing plate is arranged between the hot end of the refrigerating piece and the radiating fin group and is respectively and thermally coupled with the hot end and the radiating fin group.

19. The cosmetic device of claim 17, wherein the cosmetic device comprises,

the heat dissipation assembly may further comprise a heat sink,

and the heat conduction piece is arranged between the hot end of the refrigeration piece and the radiating fin group and is respectively and thermally coupled with the hot end and the radiating fin group.

20. The cosmetic device of claim 7, wherein the body further comprises,

a bracket having a mounting cavity within which the working portion is mounted; the heat dissipation channel comprises a space in the light reflection cavity and a gap between the outer wall of the light reflection cup and the installation cavity.

21. The cosmetic device of claim 20, wherein the cosmetic device comprises,

the heat dissipation channel further comprises a second refrigerant outlet, and the second refrigerant outlet is arranged on the bracket and is communicated with the mounting cavity.

22. The cosmetic device of claim 21, wherein the cosmetic device comprises,

the second refrigerant outlets and the first refrigerant outlets are arranged in a staggered mode.

23. The cosmetic device of claim 1, wherein the cosmetic device comprises,

the heat dissipation channel further comprises a first refrigerant outlet, and the first refrigerant outlet is communicated with the light reflection cavity; the first refrigerant outlet is arranged at the end part of the reflecting cup.

24. The cosmetic device of claim 1, wherein the cosmetic device comprises,

the heat dissipation channel between the first refrigerant inlet and the second refrigerant inlet is provided with a first wall surface arranged along a first direction, a second wall surface arranged along a second direction and an arc-shaped wall surface connecting the first wall surface and the second wall surface; wherein, the included angle range between the tangent line of the arc wall surface and the axial line of the length direction of the beauty device is 10 degrees to 90 degrees.