Heat dissipation device for hair removal instrument

Abstract

The utility model belongs to the technical field of beauty supplies, and discloses a heat dissipation device for a hair removal instrument, which comprises a shell and a heat dissipation unit, the radiating unit comprises a bracket, a radiator and a centrifugal fan; a closed cavity is formed between the heat dissipation unit and the shell, an air inlet is formed in the shell wall of the closed cavity, an air outlet is formed in the shell wall on the periphery of the closed cavity, an air inlet of the centrifugal fan is communicated with the air inlet, an air outlet of the centrifugal fan is opposite to the heat source, and the cavity, where the heat source is located, of the shell is communicated with the air outlet. A refrigeration sheet abutting against the conduction part of the radiator is arranged below the heat source. According to the heat dissipation device with the structural design, heat dissipation of the heat dissipation device can be accelerated through the centrifugal fan, meanwhile, air flow at a heat source can be accelerated through the centrifugal fan, then heat accumulation is reduced, heat in the shell is finally discharged out of the shell through the exhaust outlet, and therefore the heat dissipation efficiency of the hair removal instrument is effectively improved; therefore, the service life of the hair removal instrument is greatly prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of beauty products, in particular to a heat dissipation device for a hair removal device. Background Art

[0002] Light hair removal is based on the principle of selective photothermal dynamics, using the "selective photothermal effect" of light, using light adjusted to a specific wavelength to pass through the epidermis and directly irradiate the hair follicles. The melanin in the hair follicles and hair shafts selectively absorbs light energy, and the resulting thermal effect causes the hair follicles to necrotize, and the hair no longer grows.

[0003] The hair removal device designed in the above manner in the prior art has an unreasonable structural design. In addition, the light source in the hair removal device generates a large amount of heat, so that the heat cannot be discharged outward in time when the hair removal device is working, making the hair removal device very prone to malfunction during long-term operation. Utility Model Content

[0004] The utility model aims to provide a heat dissipation device for a hair removal device, which has a stable and reliable structure and high heat dissipation efficiency, and can effectively improve the stability and service life of the hair removal device.

[0005] To achieve this purpose, the utility model adopts the following technical solutions:

[0006] The heat dissipation device of claim 1, wherein the heat dissipation unit is configured to be connected to a heat sink by the heat dissipation device and to provide a heat dissipation device for dissipating heat. The heat dissipation device comprises a shell and a heat dissipation unit matched with the shell; the heat dissipation unit comprises a bracket installed in the shell cavity, a radiator matched with the bracket, and a centrifugal fan installed above the radiator; a closed cavity is arranged between the heat dissipation unit and the shell, the shell wall of the closed cavity is provided with an air inlet, the shell wall outside the closed cavity is provided with an air outlet, the air inlet of the centrifugal fan is located above the radiator and is communicated with the air inlet through the radiator, the air outlet of the centrifugal fan is arranged opposite to a heat source arranged at an end of the shell, the cavity of the shell where the heat source is located is communicated with the exhaust outlet, and a cooling fin is arranged below the heat source and contacts with the conducting part of the radiator.

[0007] The heat sink comprises heat dissipation fins, heat pipes embedded in the heat dissipation fins, and heat-conducting fixing members fastened to the extension ends of the heat pipes; the heat-conducting fixing members are tightly fitted to the cooling fins.

[0008] Wherein, the shell includes an upper shell, a lower shell, and an end cover, and the end cover is installed at one end of the upper shell and the lower shell after matching; the heat dissipation unit, the heat source and the refrigeration fin are all arranged in the cavity formed by the upper shell, the lower shell and the end cover.

[0009] Among them, a positioning flange is circumferentially arranged on the inner wall of the cavity of the lower shell, and the heat dissipation unit cooperates with the positioning flange to form the closed cavity, and the air inlet is opened on the lower shell wall of the closed cavity; the positioning flange cooperates with the bracket.

[0010] The bracket is configured as a frame, a fixing beam is provided in the middle of the lower bottom surface of the frame, and the fixing beam is fastened to a component provided on the lower shell.

[0011] Among them, the upper surface of the frame is provided with limiting flanges around it to facilitate the placement and positioning of the radiator and the centrifugal fan. The limiting flange has multiple positioning columns extending outwardly in the circumferential direction. The positioning columns are fastened to the circuit board arranged above the heat dissipation unit.

[0012] Wherein, the frame, the limiting flange and the positioning column are integrally formed by injection molding.

[0013] The heat pipe is arranged in a U shape, the bent end of the heat pipe is exposed from the heat dissipation fins, and the heat pipe is matched with a positioning notch provided on the bracket.

[0014] The beneficial effects of the utility model are as follows: the utility model provides a heat dissipation device for a hair removal device, comprising a shell, and a heat dissipation unit matched with the shell; the heat dissipation unit comprises a bracket installed in the shell cavity, a radiator matched with the bracket, and a centrifugal fan installed above the radiator; a closed cavity is arranged between the heat dissipation unit and the shell, the shell wall of the closed cavity is provided with an air inlet, the shell wall outside the closed cavity is provided with an air outlet, the air inlet of the centrifugal fan is located above the radiator and is connected with the air inlet through the radiator, the air outlet of the centrifugal fan is arranged opposite to the heat source arranged at the end of the shell, the shell cavity where the heat source is located is connected with the air outlet, and a cooling plate that conflicts with the conduction part of the radiator is arranged below the heat source. The heat dissipation device designed with this structure can accelerate the heat dissipation of the radiator through the centrifugal fan, and can also accelerate the air flow at the heat source through the centrifugal fan, thereby reducing heat accumulation, and finally discharging the heat in the shell to the outside of the shell through the air outlet, thereby effectively improving the heat dissipation efficiency of the hair removal device, and further greatly improving the service life of the hair removal device. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is an axonometric drawing of the housing of the hair removal device of the utility model.

[0016] Figure 2 yes Figure 1 Axonometric view of the lower and middle housing.

[0017] Figure 3 It is an exploded view of the heat dissipation unit of the utility model.

[0018] Figure 4 yes Figure 3 Assembly drawing of . DETAILED DESCRIPTION

[0019] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only the parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0020] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0021] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0022] In the description of this embodiment, the terms "upper", "lower", "right", etc., are based on the directions or positions shown in the drawings, and are only for the convenience of description and simplified operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0023] Combination Figures 1 to 4 As shown, this embodiment provides a heat dissipation device for a hair removal device, which can efficiently discharge the heat generated by the heat source 4 and the cooling plate 2 in the shell 1 through the exhaust port 122 through the cooperation of the heat dissipation unit and the shell 1, and at the same time can introduce external air into the shell 1 through the air inlet 121, thereby effectively improving the heat dissipation performance of the hair removal device through the circulation of air.

[0024] Specifically, the heat dissipation device includes a shell 1 and a heat dissipation unit 3 matched with the shell 1; preferably, the heat dissipation unit 3 includes a bracket 31 installed in the cavity of the shell 1, a radiator 32 matched with the bracket 31, and a centrifugal fan 33 installed above the radiator 32; wherein, the air outlet 331 of the centrifugal fan 33 is opposite to the heat source 4 arranged at the end of the shell 1, so as to accelerate the air flow at the heat source, avoid heat accumulation causing the temperature of the heat source 4 to be too high, and then affect its life. Preferably, the heat source 4 here is set as a xenon lamp. Furthermore, in order to reduce the burning discomfort caused to the skin by the light-emitting end of the hair removal device during use, in this embodiment, a cooling plate 2 is preferably provided below the heat source and is in conflict with the conduction part of the heat sink 32; preferably, the heat sink 32 includes cooling fins 321, a heat pipe 322 embedded in the cooling fins 321, and a heat-conducting fixture 323 fastened to the outer end of the heat pipe 322; the heat-conducting fixture 323 fits tightly with the cooling plate 2, so as to conduct the heat generated by the cooling plate 2 to the cooling fins 321.

[0025] Furthermore, in order to accelerate the exchange of hot air in the shell 1 and cold air outside the shell 1, preferably, after the heat dissipation unit 3 is installed to the shell 1, a relatively closed cavity is formed between the bracket 31 and the shell 1, and an air inlet 121 is provided on the shell 1 wall of the closed cavity, and an air outlet 122 is provided on the shell 1 wall outside the closed cavity, so that the air inlet of the centrifugal fan 33 is located directly above the heat dissipation fins 321 and is connected to the air inlet 121 through the gaps between the heat dissipation fins 321, so that the cold air outside the shell 1 can flow into the closed cavity through the air inlet 121 under the action of the centrifugal fan 33, and then pass through The air is introduced into the centrifugal fan through the heat dissipation fins 321 and blown toward the heat source, and finally discharged from the shell 1 from the exhaust port 122, so that the temperature in the shell 1 can be timely and efficiently reduced to a safe temperature range through the circulation of air, thereby ensuring the normal operation of the hair removal device, thereby effectively improving the stability of the hair removal device during operation, and also improving the life of the hair removal device; the setting of the above-mentioned closed cavity in this embodiment can not only make the air inlet 121 and the air outlet 122 respectively located in different chambers, but also accelerate the air to gather in the closed chamber, increase the wind pressure at the air inlet of the centrifugal fan, and then accelerate the wind speed of the incoming air, thereby improving the heat dissipation efficiency.

[0026] It should be noted that in this embodiment, after the heat released by the radiator is mixed with the cold air outside the shell, the temperature is still lower than the temperature at the heat source 4. Therefore, after being blown to the heat source 4 by the centrifugal fan, the temperature at the heat source 4 will not be raised.

[0027] To be more specific, the shell 1 includes an upper shell 11, a lower shell 12, and an end cover 13, wherein the end cover 13 is sleeved on one end of the assembled upper shell 11 and the lower shell 12, the refrigeration fin 2 is installed on the inner bottom surface of the end cover 13, a heat source is installed above the extended end of the heat pipe 322, and the heat dissipation unit 3 is installed in the cavity formed by the upper shell 11 and the lower shell 12. For appearance requirements, the large opening end of the lower shell 12 in this embodiment is set in an elliptical trumpet shape. In order to facilitate the cooperation with the above-mentioned bracket 31 to form a relatively closed cavity below the bracket 31, a positioning flange 123 is circumferentially arranged on the inner wall of the cavity of the lower shell 12, and the positioning flange 123 cooperates with the bracket 31. The above-mentioned air inlet 121 and exhaust port 122 are both opened on the side wall of the lower shell 12.

[0028] Furthermore, as a preference, the bracket 31 is configured as a frame, and a fixing beam 311 is provided in the middle of the lower bottom surface of the frame, so that the bracket 31 is fastened to the components provided in the lower shell 12 through the fixing beam 311, and the structural strength of the frame is also enhanced.

[0029] In addition, the upper surface of the frame is provided with a limiting flange 312 around which the radiator 32 and the centrifugal fan are conveniently placed and positioned. The limiting flange 312 has a plurality of positioning posts 313 extending outwardly in the circumferential direction. The positioning posts 313 are fastened to the circuit board disposed above the heat dissipation unit 3. In order to facilitate processing and effectively reduce production costs, the frame, the limiting flange 312 and the positioning posts 313 are integrally formed by injection molding.

[0030] In addition, as a preference, the heat pipe 322 is U-shaped, with the bent end of the heat pipe 322 exposed on the heat dissipation fin 321. To facilitate the positioning of the bent end of the heat pipe 322, the heat pipe 322 cooperates with the positioning notch 314 provided on the bracket 31, thereby preventing the heat pipe 322 from shaking left and right, making the structure more stable.

[0031] The technical principle of the present invention is described above in combination with specific embodiments. These descriptions are only for explaining the principle of the present invention and cannot be interpreted as limiting the protection scope of the present invention in any way. Based on the explanations here, technicians in this field can think of other specific implementation methods of the present invention without creative work, and these methods will fall within the protection scope of the present invention.

Claims

1. A heat dissipation device for a hair removal device, characterized in that: The heat dissipation device is a heat dissipation device, a heat dissipation device for dissipating heat, and a heat dissipation device for dissipating heat. The heat dissipation device comprises a bracket installed in the shell cavity, a radiator matched with the bracket, and a centrifugal fan installed above the radiator; a closed cavity is arranged between the heat dissipation unit and the shell, the shell wall of the closed cavity is provided with an air inlet, the shell wall outside the closed cavity is provided with an air outlet, the air inlet of the centrifugal fan is located above the radiator and is connected with the air inlet through the radiator, the air outlet of the centrifugal fan is arranged opposite to the heat source arranged at the end of the shell, the cavity of the shell where the heat source is located is connected with the air outlet, and a cooling fin that conflicts with the conducting part of the radiator is arranged below the heat source; The heat sink comprises a heat dissipation fin, a heat pipe embedded in the heat dissipation fin, and a heat conductive fixing member fastened to the extension end of the heat pipe; the heat conductive fixing member is tightly fitted with the cooling fin; The shell comprises an upper shell, a lower shell, and an end cover, wherein the end cover is installed at one end of the upper shell and the lower shell after being matched; the heat dissipation unit, the heat source and the refrigeration fin are all arranged in a cavity formed by the upper shell, the lower shell and the end cover; The cavity inner wall of the lower shell is provided with a positioning flange in the circumferential direction, the heat dissipation unit cooperates with the positioning flange to form the closed cavity, and the air inlet is provided on the lower shell wall of the closed cavity; the positioning flange cooperates with the bracket; The bracket is configured as a frame, a fixing beam is provided at the middle of the bottom surface of the frame, and the fixing beam is fastened to a component provided on the lower shell; The upper surface of the frame is provided with limiting flanges around it for facilitating the placement and positioning of the radiator and the centrifugal fan. The limiting flanges have a plurality of positioning columns extending outwardly in the circumferential direction. The positioning columns are fastened to a circuit board arranged above the heat dissipation unit.

2. The heat dissipation device according to claim 1, characterized in that: The frame, the limiting flange and the positioning column are integrally formed by injection molding.

3. The heat dissipation device according to claim 1, characterized in that: The heat pipe is arranged in a U shape, the bent end of the heat pipe is exposed from the heat dissipation fin, and the heat pipe is matched with a positioning notch provided on the bracket.

Images