Portable hair removal instrument with double heat dissipation air ducts

Abstract

This utility model relates to a portable hair removal device with dual heat dissipation ducts, comprising a housing, within which are housed a control circuit board, a hair removal component, a dual heat dissipation duct assembly, and a cooling component. The housing has an air inlet, a first air outlet, and a second air outlet. The dual heat dissipation duct assembly includes a fan, a mounting frame, and a heat pipe radiator. The heat pipe radiator is located outside and fixed to the mounting frame, and includes multiple heat dissipation fins and heat-conducting pipes. The heat-conducting pipes are in contact with the cooling element of the cooling component. The mounting frame includes an air duct surrounding its internal space, and an emitting lamp is located within the mounting frame. The fan outlet, the heat dissipation channels between the heat dissipation fins, and the first air outlet of the housing sequentially form the first heat dissipation duct. The fan outlet, the air duct of the mounting frame, and the second air outlet of the housing form the second heat dissipation duct. This utility model allows for simultaneous cooling of different heat-generating components within the portable hair removal device housing without mutual interference.

Description

Technical Field

[0001] This utility model relates to the field of hair removal and beauty technology, specifically a portable hair removal device with a dual-inlet and dual-outlet cooling air duct, featuring a dual-sided air intake and a turbocharged fan. Background Technology

[0002] Photorejuvenation hair removal technology is based on the theory of selective photothermolysis. It uses light of a specific wavelength to penetrate the epidermis, causing the hair follicles to heat up, coagulate, and die, thus achieving hair removal. However, the heat generated during the process can easily cause burning pain and even redness and swelling. Home-use portable hair removal devices are small and convenient for handheld use; therefore, if the accumulated heat cannot be dissipated and cooled in time, it can cause significant pain, redness, and even safety issues. Existing portable hair removal devices generally have a single heat dissipation channel. However, there are multiple heat-generating components inside. If multiple heat-generating components rely on a single channel for heat dissipation, the heat generated by each component will interfere with each other, reducing the heat dissipation effect and affecting the working environment of the heat-generating components within the channel. For example, if a cooling element and a light emitter that both generate heat are placed in the same heat dissipation channel, when external airflow passes through one of these components, its heat will be transferred to the other. Due to their small size, portable hair removal devices have insufficient heat dissipation efficiency and cannot completely solve the problem of simultaneous cooling of different heat-generating components. Summary of the Invention

[0003] The technical problem to be solved by this utility model is to address the above-mentioned deficiencies of the prior art by proposing a portable hair removal device with dual heat dissipation channels. Different heating components can be placed in different heat dissipation channels, and the different heating components inside the portable hair removal device shell can be cooled down synchronously without interfering with each other.

[0004] The technical solution adopted by this utility model to solve its technical problem is as follows: A portable hair removal device with dual heat dissipation ducts is provided, comprising a housing, within which a control circuit board, a hair removal component, a dual heat dissipation duct assembly, and a cooling component are disposed. The housing has an air inlet, a first air outlet, and a second air outlet. The dual heat dissipation duct assembly includes a fan, a mounting frame, and a heat pipe radiator. The heat pipe radiator is disposed outside and fixed to the mounting frame, and includes a plurality of heat dissipation fins and a heat pipe, wherein the heat pipe is a U-shaped section connecting two straight sections. The device has a straight line segment passing through each heat dissipation fin, and another straight line segment fitting into the cooling fins of the cooling assembly. Each heat dissipation fin is perpendicular to the rear shell of the housing. The mounting frame includes an air duct surrounding the internal space of the mounting frame. One end of this air duct, the mounting frame air inlet, gradually narrows. The hair removal assembly includes an emitting lamp, which is located inside the mounting frame, adjacent to the cooling assembly and at the end furthest from the mounting frame air inlet. The other end of this air duct, the mounting frame air outlet, communicates with the second air outlet of the housing. The fan and the control circuit board... The components are adjacent to each other with gaps, and each has an air inlet on both sides. One air inlet communicates with the air inlet of the housing, and the other air inlet communicates with the gap between the fan and the control circuit board. The air outlet of the fan communicates with the heat dissipation channel between each heat dissipation fin and the air inlet of the fixing frame. The air outlet of the fan, the heat dissipation channel between each heat dissipation fin and the first air outlet of the housing form a first heat dissipation air duct in sequence. The air outlet of the fan, the air duct of the fixing frame and the second air outlet of the housing form a second heat dissipation air duct.

[0005] Furthermore: The casing of the fan is a volute.

[0006] The air inlet and the first air outlet are located on the rear shell of the housing, and the second air outlet is located on the side of the housing. The airflow blown out by the fan changes direction by 90 degrees through the first heat dissipation duct and is blown out from the first air outlet on the rear shell of the housing. It then changes direction by 270 degrees through the second heat dissipation duct and is blown out from the second air outlet on the side of the housing.

[0007] The air inlet of the fixed frame is triangular funnel-shaped, with the widest part at the front end of the air inlet being the same width as the air outlet of the fan.

[0008] The second heat dissipation duct is U-shaped.

[0009] A mode selection button is installed on the front of the housing, and a corresponding button is set inside the control circuit board housing.

[0010] The cooling assembly includes sapphire and a cooling plate for cooling the sapphire.

[0011] A thermally conductive silicone sealant is provided between the cooling chip and the sapphire crystal.

[0012] The hair removal component also includes a quartz glass filter, which is fixed between the sapphire and the emitting lamp tube by a rectangular silicone gasket.

[0013] The hair removal component also includes an arc-shaped light reflector disposed behind the emitting lamp tube.

[0014] Compared with the prior art, the present invention has the following beneficial effects: This utility model has two internal heat dissipation ducts. The heat from the cooling chip is directed into the first heat dissipation duct, and the emitting lamp is placed in the second heat dissipation duct. The external cold air can dissipate heat from the emitting lamp and the cooling chip simultaneously without interfering with each other, and can also cool the control circuit board inside the housing.

[0015] The second cooling channel is U-shaped, which can further dissipate heat from the fixed housing of the emitting lamp tube, improve the cooling effect of the cooling component, and alleviate the intense pain and redness caused by hair removal as much as possible. Attached Figure Description

[0016] Figure 1 This is a three-dimensional schematic diagram of an embodiment of the portable hair removal device with dual heat dissipation channels of this utility model; Figure 2 This is an exploded view of an embodiment of the portable hair removal device with dual heat dissipation channels of this utility model; Figure 3 This is an exploded schematic diagram of the dual heat dissipation air duct system of an embodiment of the portable hair removal device with dual heat dissipation air ducts of this utility model. Figure 4 This is a cross-sectional view of the dual heat dissipation air duct system of an embodiment of the portable hair removal device with dual heat dissipation air ducts of this utility model; Figure 5 This is an exploded view of the air inlet and outlet of an embodiment of the portable hair removal device with dual heat dissipation channels of this utility model; Figure 6 This is a schematic cross-sectional view of the air inlet and outlet of an embodiment of the portable hair removal device with dual heat dissipation channels of this utility model; Figure 7 This is an exploded view of the air inlet and outlet of the first heat dissipation duct in an embodiment of this utility model. Figure 8 This is an exploded view of the air inlet and outlet of the second heat dissipation duct in an embodiment of this utility model; Figure 9 This is a schematic cross-sectional view of the air inlet and outlet of the second heat dissipation duct in an embodiment of this utility model. Detailed Implementation

[0017] The preferred embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0018] like Figures 1 to 9 As shown, a portable hair removal device with dual heat dissipation ducts includes a housing 10, within which a control circuit board B, a hair removal component 20, a dual heat dissipation duct component 30, and a cooling component 40 are disposed. The housing 10 includes a front shell 11, a rear shell 12, and a fixing cover 13 located at the front end of the front and rear shells. The rear shell is provided with an air inlet 121 and a first air outlet 122, and the side of the housing is provided with a second air outlet 111. The dual heat dissipation air duct assembly 30 includes a fan 31, a mounting bracket 32, and a heat pipe radiator 33. The heat pipe radiator 33 is disposed outside and fixed to the mounting bracket 32. The heat pipe radiator 33 includes a plurality of heat dissipation fins 331 and heat conduction pipes 332. Each heat conduction pipe 332 is a U-shape with a curved section connecting two straight sections. One straight section passes through each heat dissipation fin 331, and the other straight section is in contact with the cooling plate 41 of the cooling assembly 40 to conduct the heat generated by the cooling plate 41 out. Each heat dissipation fin 331 is perpendicular to the rear shell of the housing. The mounting bracket 32 ​​includes an air duct surrounding the internal space of the mounting bracket, which gradually narrows at one end, i.e., the air inlet of the mounting bracket. The hair removal component 20 includes an emitting lamp 21, which is disposed within the mounting bracket 32, adjacent to the cooling component 40, and located at the end furthest from the air inlet of the mounting bracket. The other end of the air duct, i.e., the air outlet of the mounting bracket, communicates with the second air outlet 111 of the housing. The fan 31 is adjacent to the control circuit board B with a gap between them. The fan 31 has air inlets on both sides; one air inlet communicates with the air inlet 11 of the housing, and the other air inlet communicates with the gap S between the fan and the control circuit board. The air outlet of the fan communicates with the heat dissipation channels between each of the heat dissipation fins 331 and the air duct of the mounting bracket. Figure 6 and Figure 7 As shown, the air outlet of the fan, the heat dissipation channels between the heat dissipation fins, and the first air outlet of the housing sequentially form a first heat dissipation duct W1. The heat generated by the cooling plate 41 of the cooling assembly is conducted to the first heat dissipation duct and discharged through the heat pipe. Figure 6 and Figure 8 As shown, the air outlet of the fan, the air duct of the fixed frame, and the second air outlet of the housing form a second heat dissipation air duct W2, and the heat generated by the emitting lamp tube 21 is discharged through the second heat dissipation air duct.

[0019] like Figure 5 and Figure 6As shown, the fan is a double-sided air intake turbine-enhanced air pressure and wind speed structure. The fan housing 31 is a volute. The airflow drawn in from the fan inlet changes direction by 90 degrees inside the fan and is blown out through the fan outlet. The airflow blown out by the fan changes direction by 90 degrees within the first heat dissipation duct and is blown out through the first air outlet 12 on the rear shell of the housing. The airflow blown out by the fan circulates within the fixed frame and changes direction by 270 degrees before being blown out through the second air outlet 13 on the side of the housing. The fan has a double-inlet structure that draws air in from both sides simultaneously. One inlet is connected to the rear shell of the housing, allowing for rapid intake of cold air from outside the machine, enhancing the cooling effect. The other inlet is connected to the internal space of the hair removal device housing through a gap between it and the control circuit board. The heat generated by the control circuit board B enters the fan through the gap S between the fan and the control circuit board and is then discharged through the first and second heat dissipation ducts. This extends the service life of the components on the control circuit board and improves the stability of the machine.

[0020] The fixing frame 32 includes a first part 321 and a second part 322 that fit together. The first part 321 and the second part 322, when combined, form a curved air duct that bends 270 degrees. For example... Figure 9 As shown, the emitting lamp is positioned opposite the air inlet on the air duct. The front section of the air duct of the mounting frame is a triangular funnel shape to concentrate airflow, increasing the air pressure and velocity. The heat generated by the emitting lamp is then carried away and discharged through the mounting frame outlet and the second outlet of the housing. The width of the front end of the mounting frame air inlet 323 is the largest, the same as the width of the fan outlet, which is beneficial for maximizing the airflow from the fan. The airflow entering from the mounting frame air inlet is concentrated by the triangular funnel, increasing the air pressure and velocity. After the heat dissipated by the emitting lamp is carried away, it is discharged through the mounting frame outlet 324. The entire second heat dissipation air duct is designed in an approximately U-shape, which effectively increases the heat dissipation area of ​​the air duct, ensuring that the heat generated by the emitting lamp is completely removed, including the heat absorbed by the emitting body mounting bracket itself, thus achieving a stronger cooling effect.

[0021] In some embodiments, such as Figures 1 to 4 As shown, the cooling assembly 40 includes a sapphire crystal 42 and a cooling plate 41 for cooling the sapphire crystal. A rectangular window is provided at one end of the fixing cover 13 at the front end of the housing, and the sapphire crystal 42 is installed within the rectangular window. A ring-shaped skin detector (not shown) is provided inside the rectangular window of the fixing cover, and it has a signal line connection port that connects to the control circuit board. While the sapphire crystal is in contact with the skin, the skin detector detects whether the hair removal device is actually in contact with the skin, reducing safety issues caused by user error and improving the efficiency of the hair removal device.

[0022] The sapphire crystal 42 is fixed between the front end of the first part 321 and the front end of the second part 322 of the mounting bracket 32. A quartz glass filter 43 is provided on the front and back of the light-emitting surface of the sapphire crystal 42. A silicone gasket 45 is provided between the sapphire crystal 42 and the quartz glass filter 43, with a square groove on the inner side of the silicone gasket. The quartz glass filter 43 is installed inside the square groove on the inner side of the silicone gasket, located between the sapphire crystal and the emitting lamp tube. Thermally conductive silicone 46 is provided between the cooling plate 41 and the sapphire crystal 42. The sapphire crystal is exposed at the front end of the housing and in actual contact with human skin, allowing the user to experience a cooling effect while using the portable hair removal device, thereby reducing the intense pain caused by the heat generated by the light hair removal technology.

[0023] An arc-shaped aluminum reflector 22 is installed behind the transmitting lamp tube, with both ends welded to the control circuit board. The first part 321 of the mounting bracket is fixed to the control circuit board B with screws. The second part 322 of the mounting bracket has heat dissipation fins fixed to its exterior. One end of the heat dissipation channel between adjacent heat dissipation fins is connected to the first air outlet of the housing, and the other end is connected to the air outlet of the fan.

[0024] The evenly arranged copper heat sinks are arranged in an arc shape on the other side near the bottom, which effectively reduces the resistance of the airflow and ensures that the cold air drawn in by the fan is quickly blown onto the copper heat sinks, which can quickly remove the heat from the heat sink and form a second heat dissipation airflow with a rapid cooling effect.

[0025] Preferably, a mode selection button is installed on the front of the housing, a corresponding button is provided inside the control circuit board housing, and the power button is located on the side of the housing.

[0026] During operation, the sapphire crystal adheres closely to the skin's surface. The light emitted from the lamp penetrates the sapphire crystal, reaching the hair follicle root, causing the follicle to heat up, coagulate, and die, thus removing the hair. Simultaneously, the fan draws air from both sides, dividing it into a first and a second heat dissipation duct. The first duct removes heat from the lamp, while the heat generated by the cooling element used for rapid cooling of the sapphire crystal is conducted through heat pipes to the second duct and carried away. Both ducts also provide cooling for the control circuit board. This invention features dual-duct heat dissipation, preventing heat source interference and improving overall cooling efficiency. The cooling element and heat pipe radiator work together to achieve rapid cooling of the skin contact surface. The turbocharged fan and miniaturized design balance efficient heat dissipation with portability.

[0027] It is understood that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Those skilled in the art can modify the technical solutions described in the above embodiments, or make equivalent substitutions for some of the technical features; and these modifications and substitutions should all fall within the protection scope of the appended claims of this utility model.

Claims

1. A portable hair removal device with dual heat dissipation ducts, comprising a housing, wherein a control circuit board, a hair removal component, a dual heat dissipation duct component, and a cooling component are disposed within the housing, characterized in that: The housing is provided with an air inlet, a first air outlet, and a second air outlet. The dual heat dissipation air duct assembly includes a fan, a mounting bracket, and a heat pipe radiator. The heat pipe radiator is located outside the mounting bracket and fixed to it. The heat pipe radiator includes multiple heat dissipation fins and a heat pipe. The heat pipe is a U-shape with a curved section connecting two straight sections. One straight section passes through each heat dissipation fin, and the other straight section is attached to the cooling plate of the cooling assembly. Each heat dissipation fin is perpendicular to the rear shell of the housing. The mounting bracket includes an air duct surrounding the internal space of the mounting bracket. One end of the air duct, i.e., the air inlet of the mounting bracket, gradually narrows. The hair removal assembly includes an emitting lamp tube, which is located inside the mounting bracket, adjacent to the cooling assembly, and at the end away from the air inlet of the mounting bracket. The other end of the air duct, i.e., the air outlet of the mounting bracket, communicates with the second air outlet of the housing. The fan and the control circuit board... The components are adjacent to each other with gaps, and each has an air inlet on both sides. One air inlet communicates with the air inlet of the housing, and the other air inlet communicates with the gap between the fan and the control circuit board. The air outlet of the fan communicates with the heat dissipation channel between each heat dissipation fin and the air duct of the fixing frame. The air outlet of the fan, the heat dissipation channel between each heat dissipation fin and the first air outlet of the housing form a first heat dissipation air duct in sequence, and the air outlet of the fan, the air duct of the fixing frame and the second air outlet of the housing form a second heat dissipation air duct.

2. The portable hair removal device with double heat dissipation air duct according to claim 1, characterized in that: The casing of the fan is a volute.

3. The portable hair removal device with double heat dissipation air ducts according to claim 1, characterized in that: The air inlet and the first air outlet of the housing are located on the rear shell of the housing, and the second air outlet of the housing is located on the side of the housing; the airflow blown by the fan changes direction by 90 degrees through the first heat dissipation duct and is blown out from the first air outlet of the rear shell of the housing, and changes direction by 270 degrees through the second heat dissipation duct and is blown out from the second air outlet on the side of the housing.

4. The portable hair removal device with double heat dissipation air ducts according to claim 1, characterized in that: The air inlet of the fixed frame is triangular funnel-shaped, with the widest part at the front end of the air inlet being the same width as the air outlet of the fan.

5. The portable hair removal device with double heat dissipation air ducts according to claim 4, characterized in that: The second heat dissipation duct is U-shaped.

6. The portable hair removal device with dual heat dissipation ducts according to claim 1, characterized in that: A mode selection button is installed on the front of the housing, and a corresponding button is set inside the control circuit board housing.

7. The portable hair removal device with double heat dissipation air ducts according to claim 1, characterized in that: The cooling assembly includes sapphire and a cooling plate for cooling the sapphire.

8. The portable hair removal device with double heat dissipation air duct according to claim 7, characterized in that: A thermally conductive silicone sealant is provided between the cooling chip and the sapphire crystal.

9. The portable hair removal device with double heat dissipation air ducts according to claim 7, characterized in that: The hair removal component also includes a quartz glass filter, which is fixed between the sapphire and the emitting lamp tube by a rectangular silicone gasket.

10. The portable hair removal device with dual heat dissipation ducts according to claim 7, characterized in that: The hair removal component also includes an arc-shaped light reflector disposed behind the emitting lamp tube.

Images