Laser hair removal device

Abstract

The utility model discloses a kind of laser hair removal instruments, it is related to medical cosmetology technical field.The laser hair removal instrument includes shell assembly, main circuit board, laser chip, contact sensing sheet and cooling fan;Shell assembly is formed with installation cavity and laser emission channel;Main circuit board is located in installation cavity;Laser chip emits laser to outside through laser emission channel;Contact sensing sheet is located at the second end opening of laser emission channel and is electrically connected with main circuit board, and contact sensing sheet is used to detect whether the second end opening of laser emission channel is in contact with skin;Cooling fan is suspended on main circuit board by support frame and is electrically connected with main circuit board;The position of air inlet side and air outlet side corresponding to cooling fan on shell assembly is all provided with vent hole.The utility model improves the structure of depilatory instrument, simplifies luminous structure, improves the heat dissipation capacity of depilatory instrument, improves laser hair removal effect, solves the problem of damage of parts caused by excessive heat, and reduces noise.

Description

Technical Field

[0001] This utility model relates to the field of medical aesthetics technology, and in particular to a laser hair removal device. Background Technology

[0002] In the prior art, such as the utility model patent with publication number CN213606854U, an optical hair removal device is disclosed, including a shell, a cooling part, and an emitter. The cooling part is partially exposed on the surface of the shell and is made of crystal material. The emitter is disposed inside the shell and located on the side of the cooling part away from contact with the human body. The light emitted by the emitter passes through the cooling part, positioning the emitter on the side of the cooling part away from contact with the human body. The luminescent hair removal mechanism includes a cooling part, an emitter, a cooling element, a skin detection part, a reflector, a heat insulation plate, and mounting components, etc. The internal structure of the hair removal device is complex, with many heating elements and high power, generating a large amount of heat, which can easily damage the internal parts of the hair removal device. Utility Model Content

[0003] The main purpose of this invention is to provide a laser hair removal device that simplifies the light-emitting structure and reduces heat generation to avoid damage to components due to excessive heat.

[0004] To achieve the above objectives, this utility model proposes a laser hair removal device, comprising:

[0005] The housing assembly has a mounting cavity and a laser emission channel, wherein a first end of the laser emission channel is connected to the mounting cavity and a second end of the laser emission channel is connected to the outside.

[0006] The main circuit board is located inside the mounting cavity;

[0007] A laser chip, installed within the mounting cavity and located at the first end of the laser emission channel, emits laser light to the outside through the laser emission channel; and

[0008] A cooling fan is disposed inside the housing assembly, and ventilation holes are provided on the housing assembly at positions corresponding to the air inlet and air outlet sides of the cooling fan.

[0009] Optionally, the laser hair removal device further includes a contact sensor, which is disposed at the second end opening of the laser emission channel and electrically connected to the main circuit board or the laser chip. The contact sensor is used to detect whether the second end opening of the laser emission channel is in contact with the skin.

[0010] Optionally, the laser hair removal device further includes heat dissipation fins, which are mounted on the support frame and located on one side of the cooling fan, and the laser chip is mounted abutting against the heat dissipation fins.

[0011] Optionally, the laser chip emits a laser wavelength in the range of 600-1200nm, which may be one or more wavelengths.

[0012] Optionally, the laser hair removal device further includes an image sensor, which is disposed on one end of the housing assembly where the laser emission channel is located and electrically connected to the main circuit board. The image sensor is used to acquire skin images of the treatment area.

[0013] Optionally, the laser hair removal device further includes a rechargeable battery, which is installed in the mounting cavity and electrically connected to the main circuit board.

[0014] Optionally, the housing assembly is provided with a charging interface, which is electrically connected to the rechargeable battery.

[0015] Optionally, the support frame is provided with a first mounting part, a second mounting part and a third mounting part, the first mounting part and the second mounting part are located on the same side of the support frame, the third mounting part is located on the other side of the support frame, the cooling fan is mounted on the first mounting part, the rechargeable battery is mounted on the second mounting part, and the main circuit board is mounted on the third mounting part.

[0016] Optionally, the laser hair removal device further includes a mode button and a trigger button, which are respectively located on the main circuit board and exposed on the surface of the housing assembly.

[0017] Optionally, the housing assembly has a tapered end forming the laser emission channel, and the opening at the second end of the laser emission channel is square or circular.

[0018] In the technical solution of this utility model, the laser hair removal device includes a housing assembly, a main circuit board, a laser chip, and a cooling fan. The housing assembly forms a mounting cavity and a laser emission channel. The first end of the laser emission channel communicates with the mounting cavity, and the second end of the laser emission channel communicates with the outside. The main circuit board is disposed within the mounting cavity. The laser chip is mounted within the mounting cavity and located at the first end of the laser emission channel to emit laser light to the outside through the laser emission channel. The cooling fan is suspended on the main circuit board by a support frame and electrically connected to the main circuit board. Ventilation holes are provided on the housing assembly at positions corresponding to the air inlet and air outlet of the cooling fan. It can be understood that this utility model improves the structure of the hair removal device. By using a low-power laser chip as the light-emitting device, the light-emitting structure is greatly simplified, heat generation is reduced, and there is no irritating noise. Furthermore, by setting up a cooling fan, the internal heat dissipation capacity of the hair removal device is improved, which helps to enhance the laser hair removal effect and solves the problem of damage to components caused by excessive heat. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0020] Figure 1 This is a front structural diagram of an embodiment of the laser hair removal device of this utility model;

[0021] Figure 2 This is a schematic diagram of the back structure of an embodiment of the laser hair removal device of this utility model;

[0022] Figure 3 This is an exploded view of an embodiment of the laser hair removal device of this utility model;

[0023] Figure 4 This is a schematic diagram of the support frame and its components in one embodiment of the laser hair removal device of this utility model.

[0024] Explanation of icon numbers:

[0025] 10. Housing assembly; 20. Main circuit board; 30. Laser chip; 40. Contact sensor; 50. Cooling fan; 10a. Mounting cavity; 10b. Laser emission channel; 11. Support frame; 10c. Ventilation hole; 60. Heat sink fins; 70. Rechargeable battery; 71. Charging interface; 111. First mounting part; 112. Second mounting part; 113. Third mounting part; 21. Mode button; 22. Trigger button.

[0026] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0029] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0030] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. If the word "and / or" appears throughout the text, it means including three parallel solutions; for example, "A and / or B" includes solution A, solution B, or a solution that simultaneously satisfies A and B. The technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0031] This utility model proposes a laser hair removal device.

[0032] Reference Figures 1 to 4 In one embodiment of this utility model, the laser hair removal device includes a housing assembly 10, a main circuit board 20, a laser chip 30, a contact sensor 40, and a cooling fan 50. The housing assembly 10 forms a mounting cavity 10a and a laser emission channel 10b. The first end of the laser emission channel 10b is connected to the mounting cavity 10a, and the second end of the laser emission channel 10b is connected to the outside. The main circuit board 20 is disposed in the mounting cavity 10a. The laser chip 30 is installed in the mounting cavity 10a and located at the first end of the laser emission channel 10b to emit laser light to the outside through the laser emission channel 10b. The contact sensor 40 is disposed at the opening of the second end of the laser emission channel 10b and is electrically connected to the main circuit board 20 or the laser chip 30. The contact sensor 40 is used to detect whether the opening of the second end of the laser emission channel 10b is in contact with the skin. The cooling fan 50 is suspended on the main circuit board 20 by a support frame 11 and is electrically connected to the main circuit board 20. Ventilation holes 10c are provided on the housing assembly 10 at positions corresponding to the air inlet and air outlet of the cooling fan 50.

[0033] In this embodiment, the housing assembly 10 may include several housings. One end of the housing forming the laser emission channel 10b may be designed as a cone, and the opening at the second end of the laser emission channel 10b may be designed as a square or a circle, preferably a square opening, so that the laser falls on the skin in a rectangular shape. This is beneficial for adapting to the skin at different locations on the human body, avoiding treatment blind spots, making a single treatment more thorough, and reducing repeated operations.

[0034] In this embodiment, the laser chip 30 can be selected from those capable of emitting one or more wavelengths of laser light within the range of 600-1200nm, so that the hair removal device has a better hair removal effect. Preferably, the laser wavelength emitted by the laser chip 30 is 808nm.

[0035] In this embodiment, the laser hair removal device may further include heat dissipation fins 60, which are mounted on the support frame 11 and located on one side of the cooling fan 50. The laser chip 30 is mounted in contact with the heat dissipation fins. In this way, the heat generated by the laser chip 30 can be conducted to the cooling fan 50 and then dissipated.

[0036] It is understood that this utility model improves the structure of the hair removal device. By using a low-power laser chip 30 as the light-emitting device, the light-emitting structure is greatly simplified, heat generation is reduced, and there is no irritating noise. Furthermore, by setting up a cooling fan 50, the internal heat dissipation capacity of the hair removal device is improved, which helps to enhance the laser hair removal effect and solves the problem of damage to components caused by excessive heat.

[0037] In one embodiment, such as Figures 1 to 4 As shown, the laser hair removal device may also include a rechargeable battery 70, which is installed in the mounting cavity 10a and electrically connected to the main circuit board 20. A charging interface 71 is provided on the housing assembly 10, and the charging interface 71 is electrically connected to the rechargeable battery 70.

[0038] In this embodiment, preferably, the rechargeable battery 70 can be two 18650 lithium batteries; the charging interface 71 can be a Type-C interface, a Micro USB interface, or a Lightning interface, etc., and there is no limitation here.

[0039] To improve the structural compactness of the laser hair removal device, facilitate assembly, and save costs, in one embodiment, the support frame 11 may be designed to have a first mounting part 111, a second mounting part 112, and a third mounting part 113. The first mounting part 111 and the second mounting part 112 are located on the same side of the support frame 11, and the third mounting part 113 is located on the other side of the support frame 11. The cooling fan 50 is mounted on the first mounting part 111, the rechargeable battery 70 is mounted on the second mounting part 112, and the main circuit board 20 is mounted on the third mounting part 113.

[0040] In this embodiment, the shape and size of the first mounting part 111 can be adapted to the shape and size of the bottom of the cooling fan 50 it supports, and the two can be fixed by means of screw connection, glue bonding, or snap-fit. Similarly, the shape and size of the second mounting part 112 can be adapted to the shape and size of the battery compartment or pack of the rechargeable battery 70 it supports, and the two can be fixed by means of screw connection, glue bonding, or snap-fit. The main circuit board 20 is mounted on the connecting post of the third mounting part 113, and the main circuit board 20 and the connecting post can be connected by screws or other means to ensure that the heat of the main circuit board 20 can be dissipated in time.

[0041] To facilitate user operation, in one embodiment, such as Figures 1 to 4 As shown, the laser hair removal device may also include a mode button 21 for adjusting the working mode of the hair removal device and a trigger button 22 for activating the laser chip 30. The mode button 21 and the trigger button 22 are respectively located on the main circuit board 20 and exposed on the surface of the housing assembly 10.

[0042] Furthermore, in some embodiments, such as Figure 1 As shown, the laser hair removal device may also include an image sensor. The image sensor is located on the end of the housing assembly 10 that has the laser emission channel 10b and is electrically connected to the main circuit board 20. The image sensor is used to acquire skin images of the treatment area. In this way, by setting up the image sensor, images of the treatment area are acquired, so that the user can view the hair removal progress in real time.

[0043] The above are merely optional embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural transformations made based on the inventive concept of this utility model and the contents of the specification and drawings of this utility model, or direct / indirect applications in other related technical fields, are included within the patent protection scope of this utility model.

Claims

1. A laser hair removal device, characterized in that, include: The housing assembly has a mounting cavity and a laser emission channel, wherein a first end of the laser emission channel is connected to the mounting cavity and a second end of the laser emission channel is connected to the outside. The main circuit board is located inside the mounting cavity; A laser chip, installed within the mounting cavity and located at the first end of the laser emission channel, emits laser light to the outside through the laser emission channel; and A cooling fan is disposed inside the housing assembly, and ventilation holes are provided on the housing assembly at positions corresponding to the air inlet and air outlet sides of the cooling fan.

2. The laser hair removal device as described in claim 1, characterized in that, The laser hair removal device also includes a contact sensor, which is located at the second end opening of the laser emission channel and electrically connected to the main circuit board or the laser chip. The contact sensor is used to detect whether the second end opening of the laser emission channel is in contact with the skin.

3. The laser hair removal device as described in claim 1, characterized in that, The laser hair removal device also includes heat dissipation fins, which are mounted on the support frame and located on one side of the cooling fan. The laser chip is attached to the heat dissipation fins.

4. The laser hair removal device as described in claim 1, characterized in that, The laser chip emits one or more wavelengths within the range of 600-1200nm.

5. The laser hair removal device as described in claim 1, characterized in that, The laser hair removal device also includes an image sensor, which is located on one end of the housing assembly where the laser emission channel is located and is electrically connected to the main circuit board. The image sensor is used to acquire skin images of the treatment area.

6. The laser hair removal device as described in claim 1, characterized in that, The laser hair removal device also includes a rechargeable battery, which is installed in the mounting cavity and electrically connected to the main circuit board.

7. The laser hair removal device as described in claim 6, characterized in that, The housing assembly is provided with a charging interface, which is electrically connected to the rechargeable battery.

8. The laser hair removal device as described in claim 6, characterized in that, The support frame is provided with a first mounting part, a second mounting part and a third mounting part. The first mounting part and the second mounting part are located on the same side of the support frame, and the third mounting part is located on the other side of the support frame. The cooling fan is mounted on the first mounting part, the rechargeable battery is mounted on the second mounting part, and the main circuit board is mounted on the third mounting part.

9. The laser hair removal device as described in claim 1, characterized in that, The laser hair removal device also includes a mode button and a trigger button, which are respectively located on the main circuit board and exposed on the surface of the housing assembly.

10. The laser hair removal device as described in claim 1, characterized in that, The housing assembly has a tapered shape at one end forming the laser emission channel, and the opening at the second end of the laser emission channel is square or circular.

Images