An epilator

Abstract

The utility model relates to epilator technical field, especially in kind of epilator, epilator includes main seat body, and the cavity is seted up in main seat body, and the fan and heat dissipation subassembly are provided in cavity, and heat dissipation subassembly sets up in the air inlet side or air outlet side of fan, and main seat body includes upper part and lower part who set up in first direction in proper order, and upper part sets up first hole, and lower part sets up second hole, and the inner wall of first hole and second hole sets up first air port and second air port respectively, and first air port, cavity and second air port communicate in proper order. Since the inner wall of first hole sets up first air port, and the inner wall of second hole sets up second air port, make first air port and second air port hide in the inner wall of first hole and second hole respectively, not main seat body surface, avoid direct exposure to external environment, effectively block dust, hair and other foreign matters to enter main seat body, solved the problem that the dustproof effect of main seat body of traditional epilator is poor.

Description

Technical Field

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

[0002] Hair removal devices generate a lot of heat during operation. Using a fan inside the device's main body to accelerate airflow can effectively improve heat dissipation efficiency. However, the working environment of hair removal devices is characterized by a large amount of foreign matter such as dust, hair, dander, and fine fibers. Existing hair removal devices typically use exposed air vents, which become direct channels for foreign matter to enter the main body. This can easily cause foreign matter to accumulate on the internal components, severely hindering airflow, reducing heat dissipation efficiency, increasing fan noise, and even leading to fan jamming or overheating malfunctions. Utility Model Content To solve the above problems, this utility model provides a hair removal device.

[0003] To solve the above-mentioned technical problems, this utility model provides a hair removal device in one embodiment. The hair removal device includes a main body and a handpiece, which are connected by a pipe. A cavity is formed in the main body, and a fan and a heat dissipation component are arranged in the cavity. The heat dissipation component is arranged on the air inlet side or air outlet side of the fan, and the heat dissipation component and the handpiece are connected by a pipe. The main body includes an upper part and a lower part arranged sequentially along a first direction. A first hole is formed in the upper part, and a second hole is formed in the lower part. A first air vent is formed on the inner wall of the first hole, and a second air vent is formed on the inner wall of the second hole. The first air vent, the cavity, and the second air vent are connected sequentially.

[0004] Preferably, at least one of the axial direction of the first hole and the axial direction of the second hole forms an angle with the first direction.

[0005] Preferably, the axial direction of the first hole and the axial direction of the second hole are perpendicular to the first direction.

[0006] Preferably, the first air vent is an annular air vent distributed circumferentially along the inner wall of the first hole.

[0007] Preferably, the main body includes a first housing and a second housing, the second housing being sleeved on the outside of the first housing, and the first housing and the second housing being spaced apart to form the first air vent.

[0008] Preferably, the first housing is provided with a first curved portion corresponding to the first air vent, and the second housing is provided with a second curved portion corresponding to the first air vent. The extension direction of the first air vent changes between the first curved portion and the second curved portion. The second curved portion is provided with a first ventilation hole, which connects the first air vent and the cavity.

[0009] Preferably, the first air vent includes a first branch, a second branch, and a third branch; the first branch and the second branch are disposed on both sides of the inner wall of the first hole, and the third branch is opened in the middle of the inner wall of the first hole; the number of the first ventilation holes is two sets, and the second housing opens one set of the first ventilation holes at the corresponding position between the first branch and the third branch, and the second housing opens another set of the first ventilation holes at the corresponding position between the second branch and the third branch.

[0010] Preferably, the inner wall of the second hole near the first hole is defined as the first hole wall, and the second air vent is opened on the first hole wall.

[0011] Preferably, the inner wall of the second hole away from the first hole is defined as the second hole wall, and the second hole wall is inclined relative to the first hole wall; the second hole is a through hole, and the second hole includes a first opening and a second opening, the first opening and the second opening are respectively located at both ends of the second hole, and the cross-sectional area of ​​the second hole increases along the direction from the first opening to the second opening.

[0012] Preferably, the main body further includes a liquid connection end, which is disposed on the side of the first orifice away from the upper part.

[0013] Preferably, the second air outlet has a plurality of second ventilation holes arranged in an array in the first direction.

[0014] Preferably, the fan is located between the first hole and the second hole, and the direction of the airflow driven by the fan is: entering the cavity from the first air inlet, passing through the fan and exiting from the second air inlet; or, entering the cavity from the second air inlet, passing through the fan and exiting from the first air inlet.

[0015] Preferably, the lower part is further provided with a circuit board and a heat dissipation bracket. The first air vent, circuit board, fan, heat dissipation component and second air vent are arranged in sequence. The circuit board has a third through hole corresponding to the fan. The circuit board is disposed on the heat dissipation bracket. The heat dissipation bracket is sleeved on the fan and the heat dissipation component.

[0016] Preferably, the area of ​​the first air vent is greater than or equal to 10 cm². 2 and less than or equal to 50cm2 The area of ​​the second air vent is greater than or equal to 10 cm². 2 and less than or equal to 50cm 2 .

[0017] Preferably, the inner wall of the first hole is provided with a mounting position, and the hand tool is installed in the mounting position; the heat dissipation component is installed in the lower part, and the first air vent, fan, heat dissipation component, and second air vent are arranged in sequence. The hair removal device also includes a liquid passage pipe, which includes an inlet pipe and an outlet pipe. The heat dissipation component, inlet pipe, hand tool, and outlet pipe are connected end to end in sequence. The direction of the airflow driven by the fan is: entering the cavity from the first air vent, passing through the fan and the heat dissipation component in sequence, and then exiting from the second air vent.

[0018] Compared with existing technologies, the hair removal device of this invention has the following advantages: 1. In one embodiment of this utility model, the hair removal device includes a main body and a handpiece, which are connected by a pipe. A cavity is formed within the main body, and a fan and a heat dissipation assembly are disposed within the cavity. The heat dissipation assembly is disposed on the air inlet or outlet side of the fan, and the heat dissipation assembly and the handpiece are connected by a pipe. The main body includes an upper part and a lower part arranged sequentially along a first direction. The upper part has a first hole, and the lower part has a second hole. A first air vent is formed on the inner wall of the first hole, and a second air vent is formed on the inner wall of the second hole. The first air vent, the cavity, and the second air vent are sequentially connected. Because the main body has a first hole and a second hole in the upper and lower parts respectively, and the first hole has a first air vent on its inner wall, and the second hole has a second air vent on its inner wall, the first and second air vents are respectively hidden within the inner walls of the first and second holes, rather than on the surface of the main body. This avoids direct exposure to the external environment and effectively prevents dust, hair, and other foreign objects from entering the main body, solving the problem of poor dustproof performance of the main body in traditional hair removal devices. The heat dissipation component and the handpiece are connected by pipes, allowing the heat dissipation component to exchange heat with the handpiece via liquid cooling. The heat dissipation component is located on the air inlet or outlet side of the fan, and the fan accelerates airflow to improve the heat dissipation efficiency of the heat dissipation component. The first air vent, the cavity, and the second air vent are connected sequentially. The fan drives the airflow to flow sequentially through the first air vent, the cavity, and the second air vent; or sequentially through the second air vent, the cavity, and the first air vent, thus improving heat dissipation efficiency. Furthermore, due to the characteristic of the through holes being open at both ends, and the fact that both the first and second holes are tilted relative to the first direction, regardless of the angle at which the main body tilts, at least one side of the first and second holes will remain open without being blocked. This avoids the problem of traditional exposed air vents on the main body, where the airflow is obstructed when the main body tilts, leading to decreased heat dissipation efficiency or even damage to the equipment.

[0019] 2. In one embodiment of this utility model, at least one of the axial direction of the first hole and the axial direction of the second hole forms an angle with the first direction. When the axial direction of the first hole forms an angle with the first direction, when external dust, hair, or other foreign objects fall, they are unlikely to fall directly into the cavity along the first direction due to the angle. The foreign objects need to overcome gravity and move along the inclined path caused by the angle. Most of them will slide off the edge of the first air vent under the action of gravity, rather than directly entering the interior of the main body. Similarly, when the axial direction of the second hole forms an angle with the first direction, external foreign objects are also unlikely to directly enter the cavity, thus improving the dustproof effect of the main body.

[0020] 3. In one embodiment of this utility model, the axial direction of the first hole and the axial direction of the second hole are perpendicular to the first direction. Since the first direction is the height direction of the hair removal device, the perpendicular arrangement of the first hole and the second hole relative to the first direction facilitates the horizontal entry and exit of air and prevents foreign objects in the vertical direction from falling directly into the cavity due to gravity.

[0021] 4. In one embodiment of this utility model, the first air outlet is an annular air outlet distributed circumferentially along the inner wall of the first hole. The annular air outlet enables the air to flow uniformly in the circumferential direction, avoiding local dead air zones and improving the uniformity of heat dissipation. Compared with single-point or strip-shaped air outlets, the annular air outlet design can increase the effective ventilation area, reduce ventilation resistance, and improve fan efficiency. Moreover, the circumferentially distributed annular air outlet disperses the airflow direction, reducing the possibility of foreign objects directly intruding in a single direction. In addition, even if a part of the annular air outlet is blocked by foreign objects, the remaining part can still maintain the effectiveness of ventilation.

[0022] 5. In one embodiment of the present invention, the main body includes a first shell and a second shell. The second shell is sleeved on the outside of the first shell. The first shell and the second shell are spaced apart to form a first air vent. This makes the structure of the main body with the first air vent more compact. The first air vent is directly formed by nesting the first shell and the second shell, which simplifies the assembly process. At the same time, it also helps to hide the internal structure of the main body, enhance the concealment of the first air vent, and improve the dustproof effect.

[0023] 6. In one embodiment of this utility model, a first curved portion is provided at the first air vent corresponding to the first air vent, and a second curved portion is provided at the second air vent corresponding to the first air vent. The extension direction of the first air vent changes between the first curved portion and the second curved portion. The second curved portion has a first ventilation hole, which connects the first air vent and the cavity. Through the geometric characteristics of the bending of the first and second curved portions, the extension direction of the first air vent changes between the first and second curved portions, forming a directional ventilation channel. Compared with a straight channel, the change in the extension direction of the first air vent can effectively block foreign objects: when a lighter foreign object moves with the airflow, it will move along its original direction due to inertia. However, the change in the extension direction of the first air vent causes the airflow to change direction, and the foreign object settles due to inertia after impacting the first or second curved portion, thus preventing it from entering the cavity. For longer foreign objects such as hair and fibers, they can enter the straight channel directly, but the change in the extension direction of the first air vent creates a dead angle, making it difficult for the foreign object to enter the cavity along a tortuous path. The first ventilation hole in the second bend allows airflow to pass through while further isolating larger foreign objects.

[0024] 7. In one embodiment of this utility model, the first air vent includes a first branch, a second branch, and a third branch. The first and second branches are located on both sides of the inner wall of the first hole, and the third branch is located in the middle of the inner wall of the first hole. There are two sets of first ventilation holes. The second housing has one set of first ventilation holes at the corresponding position between the first and third branches, and another set of first ventilation holes at the corresponding position between the second and third branches. The first air vent, including multiple branches such as the first, second, and third branches, increases the ventilation area, improves heat dissipation efficiency, and ensures stable operation of the hair removal device. The first and second branches are distributed on both sides of the inner wall of the first hole, and the third branch is located in the middle of the inner wall of the first hole. This distributed layout enables multi-angle and multi-area ventilation, optimizes the uniformity of the airflow path, and avoids the problem of concentrated local airflow and insufficient airflow in other areas. Although the total area of ​​the multiple branches is large, the individual size of each branch can still remain small, effectively blocking foreign objects.

[0025] 8. In one embodiment of this utility model, the inner wall of the side of the second hole closest to the first hole is defined as the first hole wall. The second air outlet is opened on the first hole wall, which can effectively shorten the air duct length, making the position of the second air outlet closer to the fan, reducing the path loss of airflow in the cavity, and improving ventilation efficiency. Opening the second air outlet on the first hole wall makes the second air outlet more concealed and also prevents external dust from falling directly into the cavity through the second air outlet, thus improving the dustproof effect.

[0026] 9. In one embodiment of this utility model, the inner wall of the side of the second hole furthest from the first hole is defined as the second hole wall, and the second hole wall is inclined relative to the first hole wall; the second hole is a through hole, including a first opening and a second opening, which are respectively located at both ends of the second hole; the cross-sectional area of ​​the second hole increases along the direction from the first opening to the second opening, forming a funnel-shaped second hole, which conforms to the laws of fluid mechanics and reduces turbulence and wind pressure loss. The inclined second hole wall also plays a guiding role in airflow, making the airflow more stable and smooth.

[0027] 10. In one embodiment of this utility model, the main body further includes a liquid circuit connection end, which is located on the side away from the upper part of the first orifice. The liquid circuit connection end is used to connect the heat dissipation component inside the main body and the liquid passage outside the main body to realize liquid cooling heat dissipation circulation. Since the first orifice and the second orifice are respectively located at both ends of the second orifice, and the cross-sectional area of ​​the second orifice increases along the direction from the first orifice to the second orifice, the space occupied by the first orifice is smaller, providing more space for the liquid circuit connection end. The liquid circuit connection end is located here to improve the compactness of the overall structure of the main body. Moreover, this position is away from the air outlet side of the fan, heat dissipation components and other heat sources, avoiding the coolant from absorbing additional heat and improving cooling efficiency.

[0028] 11. In one embodiment of the present invention, the second air outlet is provided with a plurality of arrayed second ventilation holes in the first direction. The aperture of the arrayed second ventilation holes is relatively smaller, which can block larger foreign objects and maintain sufficient ventilation. The multiple second ventilation holes can also prevent single-point blockage from causing the overall failure of the airflow path. The array arrangement disperses the airflow direction, avoids the formation of local high temperature areas, and improves the uniformity of heat dissipation.

[0029] 12. In one embodiment of this utility model, the fan is located between the first hole and the second hole. The direction of the airflow driven by the fan is: entering the cavity from the first air inlet, passing through the fan, and exiting from the second air inlet; or, entering the cavity from the second air inlet, passing through the fan, and exiting from the first air inlet. When the airflow enters the cavity from the first air inlet and exits from the second air inlet after passing through the fan, since the first air inlet is located at the top, it is farther from the ground or table surface than the second air inlet at the bottom. Using the first air inlet as the air inlet makes it more difficult to suck in foreign objects attached to the contact surface. The relatively dense cold air is driven downward by the fan, which can enhance the cooling of the heat source at the top of the main body and accelerate convection. When the airflow enters the cavity from the second air inlet and exits from the first air inlet after passing through the fan, the airflow enters the cavity from the second air inlet and first passes through the bottom of the main body, which can enhance the cooling of the bottom heat source.

[0030] 13. In one embodiment of this utility model, a circuit board and a heat dissipation bracket are further provided in the lower part. The first air vent, circuit board, fan, heat dissipation component, and second air vent are arranged sequentially. The circuit board has a third through hole corresponding to the fan. The circuit board is mounted on the heat dissipation bracket, which is fitted onto the fan and heat dissipation component. Because the heat dissipation bracket is fitted onto the fan and heat dissipation component, it provides space for the fan and heat dissipation component, improving the stability of the fan and heat dissipation component structure. The positional relationship between the heat dissipation bracket, heat dissipation component, and fan forms a rigid, integrated heat dissipation module, reducing space redundancy and improving the integration of the assembly. The circuit board is mounted on the heat dissipation bracket and no longer occupies additional independent space, but becomes part of the airflow path, achieving efficient integration of the space occupied by the circuit board. The circuit board has a third through hole corresponding to the fan, so that when the airflow passes through the third through hole, it can also carry away the heat of the circuit board. The sequential arrangement of the first air vent, circuit board, fan, heat dissipation component, and second air vent can achieve gradient cooling for the two major heat sources: the heat dissipation component and the circuit board.

[0031] 14. In one embodiment of this utility model, the area of ​​the first air vent is greater than or equal to 10 cm². 2 and less than or equal to 50cm 2 The area of ​​the second air vent is greater than or equal to 10 cm². 2 and less than or equal to 50cm 2 The above parameter range can achieve multiple balances between air pressure and air volume, and the blocking of foreign objects, ensuring that the fan operates at the optimal operating point, avoiding excessive wind resistance and whistling due to an excessively small area, or insufficient air pressure due to an excessively large area, and ensuring that the air outlet area is reduced while meeting the heat dissipation requirements, thus reducing the probability of foreign objects entering the cavity.

[0032] 15. In one embodiment of this utility model, the inner wall of the first hole is provided with a mounting position, and the handpiece is mounted in the mounting position. The heat dissipation component is located in the lower part, and the first air vent, fan, heat dissipation component, and second air vent are arranged sequentially. The hair removal device also includes a liquid passage pipe, which includes an inlet pipe and an outlet pipe. The heat dissipation component, inlet pipe, handpiece, and outlet pipe are connected end to end in sequence. The direction of the airflow driven by the fan is: entering the cavity from the first air vent, passing through the fan and heat dissipation component in sequence, and then exiting from the second air vent. Because the inner wall of the first hole is provided with a mounting position, and the handpiece is mounted in the mounting position, the space of the first hole is used to accommodate the handpiece, making the structure of the hair removal device more compact. The inlet pipe refers to the pipe through which the liquid cooled by the heat dissipation component enters the handpiece, and the outlet pipe refers to the pipe through which the liquid returns to the heat dissipation component after cooling the handpiece. The liquid cooled by the heat dissipation component enters the handpiece through the inlet pipe, and after cooling the handpiece, the liquid returns to the heat dissipation component through the outlet pipe. The fan removes the heat of the liquid flowing through the heat dissipation component by accelerating the airflow, ensuring that the heat dissipation of the hair removal device is efficient and stable. Attached Figure Description

[0033] To more clearly illustrate the technical solutions in the embodiments of this utility model, 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 these drawings without creative effort.

[0034] Figure 1 This is a three-dimensional structural diagram of the hair removal device provided in the first embodiment of this utility model.

[0035] Figure 2 This is a cross-sectional structural diagram of the hair removal device provided in the first embodiment of this utility model.

[0036] Figure 3 yes Figure 2 Enlarged view of the structure of part A in the middle.

[0037] Figure 4 This is an exploded structural diagram of the hair removal device provided in the first embodiment of this utility model.

[0038] Figure 5 This is a partial cross-sectional structural diagram of the hair removal device provided in the first embodiment of this utility model.

[0039] Figure 6 This is a cross-sectional structural diagram of the hair removal device provided in the second embodiment of this utility model.

[0040] Explanation of reference numerals in the attached diagram: 1. Hair removal device; 1a. Hair removal device; 10. Main body; 11. Upper part; 12. Lower part; 13. Cavity; 14. Fan; 15. Heat dissipation assembly; 17. Liquid connection end; 18. Circuit board; 19. Heat dissipation bracket; 20. Hand tool; 30. Liquid passage pipe; 31. Liquid inlet pipe; 32. Liquid outlet pipe; 111, First hole; 112, Capacitor assembly; 113, Liquid pump; 121, Second hole; 161, First housing; 162, Second housing; 181, Third through hole; 1111, First air vent; 1112, Installation position; 1211, Second air vent; 1212, First hole wall; 1213, Second hole wall; 1214, First opening; 1215, Second opening; 1611, First bend; 1621, Second bend; 11111, First branch; 11112, Second branch; 11113, Third branch; 16211, First ventilation hole; 12111, Second ventilation hole. Detailed Implementation

[0041] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the scope of the present utility model.

[0042] It should be noted that when a component is said to be "fixed to" another component, it can be directly attached to the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0043] In this invention, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," "horizontal," "lateral," and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this invention and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0044] Furthermore, in addition to indicating direction or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this utility model according to the specific circumstances.

[0045] Furthermore, the terms "installation," "setup," "equipped with," "connection," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; 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, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this utility model based on the specific circumstances.

[0046] Please combine Figures 1 to 4The first embodiment of this utility model provides a hair removal device 1, which includes a main body 10 and a handpiece 20, which are connected by a pipe. A cavity 13 is provided inside the main body 10, and a fan 14 and a heat dissipation component 15 are provided inside the cavity 13. The heat dissipation component 15 is provided on the air inlet side or air outlet side of the fan 14, and the heat dissipation component 15 and the handpiece 20 are connected by a pipe. The main body 10 includes an upper part 11 and a lower part 12 arranged sequentially along a first direction. The upper part 11 has a first hole 111, and the lower part 12 has a second hole 121. A first air vent 1111 is provided on the inner wall of the first hole 111, and a second air vent 1211 is provided on the inner wall of the second hole 121. The first air vent 1111, the cavity 13, and the second air vent 1211 are connected sequentially.

[0047] Understandably, since the main body 10 has a first hole 111 and a second hole 121 in the upper part 11 and the lower part 12 respectively, and the inner wall of the first hole 111 has a first air vent 1111, and the inner wall of the second hole 121 has a second air vent 1211, the first air vent 1111 and the second air vent 1211 are hidden in the inner walls of the first hole 111 and the second hole 121 respectively, rather than on the surface of the main body 10, so as to avoid direct exposure to the external environment and effectively block foreign objects such as dust and hair from entering the main body 10, thus solving the problem of poor dustproof effect of the main body 10 of the traditional hair removal device 1.

[0048] It should be noted that the heat dissipation component 15 and the handpiece 20 are connected by pipes, allowing the heat dissipation component 15 to exchange heat with the handpiece 20 via liquid cooling. The heat dissipation component 15 is located on the air inlet or outlet side of the fan 14, and the fan 14 accelerates airflow to improve the heat dissipation efficiency of the heat dissipation component 15. The core function of the first air vent 1111 and the second air vent 1211 is to facilitate airflow; both are through-structure channels. The first air vent 1111, the cavity 13, and the second air vent 1211 are connected sequentially. The fan 14 drives the airflow to flow sequentially through the first air vent 1111, the cavity 13, and the second air vent 1211; or sequentially through the second air vent 1211, the cavity 13, and the first air vent 1111, thereby improving heat dissipation efficiency. Furthermore, since the through hole has the characteristic of being open at both ends, and both the first hole 111 and the second hole 121 are inclined relative to the first direction, no matter what angle the main body 10 tilts, at least one side of the first hole 111 and the second hole 121 will remain open without being blocked. This avoids the problem that when the main body 10 is tilted, the air inlet or outlet of the traditional exposed air outlet is blocked, which leads to obstructed airflow and causes a decrease in the heat dissipation efficiency of the equipment or even damage.

[0049] Optionally, the first hole 111 and the second hole 121 can be blind holes with one end open and the other end closed; or they can be through holes with both ends open.

[0050] Optionally, fan 14 can be an intake fan, an exhaust fan, a DC brushless fan, an axial fan, etc.

[0051] Optionally, the upper part 11 is also provided with a capacitor assembly 112 and a liquid pump 113. The capacitor assembly 112 and the liquid pump 113 are respectively disposed on both sides of the first hole 111. The liquid pump 113 is connected to the heat dissipation assembly 15 and is used to drive the liquid cooling circulation between the heat dissipation assembly 15 and the handpiece 20. The capacitor assembly 112 stores electrical energy and discharges instantaneously when energy emission is triggered to provide peak power for the laser or pulsed light element used for hair removal in the handpiece 20. The first hole 111 separates the upper part 11. The capacitor assembly 112 and the liquid pump 113 are respectively disposed on both sides of the first hole 111, making full use of the space on both sides of the upper part 11 separated by the first hole 111, making the structure inside the main body 10 more compact.

[0052] Please combine Figures 1 to 3 Furthermore, at least one of the axial direction of the first hole 111 and the axial direction of the second hole 121 forms an angle with the first direction.

[0053] Understandably, when the axis of the first hole 111 forms an angle with the first direction, the concealment effect of the first air vent 1111 is further improved. When foreign objects such as dust and hair fall, they cannot fall directly into the cavity 13 along the first direction due to the angle between the axis of the first hole 111 and the first direction. The foreign objects need to overcome gravity and move along the inclined path caused by the angle. Most of them will slide off the edge of the first air vent 1111 under the action of gravity, rather than directly entering the interior of the main body 10. Similarly, when the axis of the second hole 121 forms an angle with the first direction, the concealment effect of the second air vent 1211 is further improved. Foreign objects also cannot directly enter the cavity 13, thus improving the dustproof effect of the main body 10.

[0054] Please combine Figure 1 and Figure 2 Furthermore, the axial direction of the first hole 111 and the axial direction of the second hole 121 are perpendicular to the first direction.

[0055] Understandably, since the first direction is the height direction of the hair removal device 1, the vertical arrangement of the first hole 111 and the second hole 121 relative to the first direction helps air to enter and exit horizontally, and prevents foreign objects in the vertical direction from falling directly into the cavity 13 due to gravity.

[0056] Please see Figure 1 and Figure 5 Furthermore, the first air vent 1111 is an annular air vent distributed circumferentially along the inner wall of the first hole 111.

[0057] Understandably, annular vents create a uniform circumferential airflow, avoiding localized dead zones and improving heat dissipation uniformity. Compared to single-point or strip-shaped vents, annular vent designs increase the effective ventilation area, reduce ventilation resistance, and improve fan efficiency. Furthermore, the circumferentially distributed annular vents disperse the airflow direction, reducing the possibility of foreign objects directly intruding in a single direction. In addition, even if a part of the annular vent is blocked by foreign objects, the remaining parts can still maintain effective ventilation.

[0058] Please combine Figure 2 , Figure 3 and Figure 5 Furthermore, the main body 10 includes a first housing 161 and a second housing 162. The second housing 162 is sleeved on the outside of the first housing 161, and the first housing 161 and the second housing 162 are spaced apart to form a first air vent 1111.

[0059] Understandably, the first housing 161 and the second housing 162 are spaced apart to form the first air vent 1111, which makes the structure of the main body 10 with the first air vent 1111 more compact. The first air vent 1111 is directly formed by nesting the first housing 161 and the second housing 162, which simplifies the assembly process. At the same time, it also helps to hide the internal structure of the main body 10, enhances the concealment of the first air vent 1111, and improves the dustproof effect.

[0060] Please combine Figure 2 and Figure 3 Furthermore, the first housing 161 is provided with a first curved portion 1611 at the first air vent 1111, and the second housing 162 is provided with a second curved portion 1621 at the first air vent 1111. The extension direction of the first air vent 1111 changes between the first curved portion 1611 and the second curved portion 1621. The second curved portion 1621 is provided with a first ventilation hole 16211, which connects the first air vent 1111 and the cavity 13.

[0061] Understandably, due to the geometric characteristics of the bending of the first curved portion 1611 and the second curved portion 1621, the extension direction of the first air vent 1111 changes between the first curved portion 1611 and the second curved portion 1621, forming a directional ventilation channel. Compared to a straight channel, the change in the extension direction of the first air vent 1111 effectively blocks foreign objects: lighter foreign objects, when moving with the airflow, will move in their original direction due to inertia, but the change in the extension direction of the first air vent 1111 changes the direction of the airflow, and the foreign objects settle due to inertia impacting the first curved portion 1611 or the second curved portion 1621, and cannot enter the cavity; for longer foreign objects such as hair and fibers, they can enter the straight channel directly, but the change in the extension direction of the first air vent 1111 will create a dead angle, making it difficult for foreign objects to enter the cavity 13 along a tortuous path. The first ventilation hole 16211 of the second curved portion 1621, while allowing airflow to pass through, can further isolate larger foreign objects.

[0062] Please continue to combine Figure 2 and Figure 3 Furthermore, the first air vent 1111 includes a first branch 11111, a second branch 11112, and a third branch 11113; the first branch 11111 and the second branch 11112 are located on both sides of the inner wall of the first hole 111, and the third branch 11113 is opened in the middle of the inner wall of the first hole 111; the number of first ventilation holes 16211 is two sets, and the second housing 162 opens one set of first ventilation holes 16211 at the corresponding position between the first branch 11111 and the third branch 11113, and the second housing 162 opens another set of first ventilation holes 16211 at the corresponding position between the second branch 11112 and the third branch 11113.

[0063] Understandably, the first air vent 1111 includes multiple vents, such as the first branch vent 11111, the second branch vent 11112, and the third branch vent 11113, increasing the ventilation area, improving heat dissipation efficiency, and ensuring the stable operation of the hair removal device 1. The first branch vent 11111 and the second branch vent 11112 are distributed on both sides of the inner wall of the first vent 111, while the third branch vent 11113 is located in the middle of the inner wall of the first vent 111. This distributed layout enables multi-angle and multi-area ventilation, optimizes the uniformity of the airflow path, and avoids the problem of concentrated airflow in some areas and insufficient airflow in others. Although the total area of ​​the multiple vents is large, the individual size of each vent can still remain relatively small, effectively blocking foreign objects.

[0064] Optionally, a group of first ventilation holes 16211 may include multiple first ventilation holes 16211 with relatively small areas; or a single first ventilation hole 16211 with relatively large areas may be used.

[0065] Please combine Figure 2 and Figure 5Furthermore, the inner wall of the second hole 121 near the first hole 111 is defined as the first hole wall 1212, and the second air vent 1211 is opened on the first hole wall 1212.

[0066] Understandably, placing the second air vent 1211 on the first hole wall 1212 effectively shortens the air duct length, bringing the second air vent 1211 closer to the fan 14, reducing airflow path loss within the cavity 13, and improving ventilation efficiency. Placing the second air vent 1211 on the first hole wall 1212 also makes it more concealed, preventing external dust from directly falling into the cavity 13 through the second air vent 1211, thus improving dustproof performance.

[0067] Please continue to combine Figure 2 and Figure 5 Furthermore, the inner wall of the second hole 121 away from the first hole 111 is defined as the second hole wall 1213, and the second hole wall 1213 is inclined relative to the first hole wall 1212; the second hole 121 is a through hole, and the second hole 121 includes a first opening 1214 and a second opening 1215, which are respectively located at both ends of the second hole 121, and the cross-sectional area of ​​the second hole 121 increases along the direction from the first opening 1214 to the second opening 1215.

[0068] Understandably, since the second hole is a through hole, the cross-sectional area of ​​the second hole 121 increases from the first hole 1214 toward the second hole 1215, thus forming a funnel-shaped second hole 121, which conforms to the laws of fluid mechanics and reduces turbulence and wind pressure loss. The inclined second hole wall 1213 also plays a guiding role in airflow, making the airflow more stable and smooth.

[0069] Please see Figure 2 Furthermore, the main body 10 also includes a liquid connection end 17, which is located on the side of the first opening 1214 away from the upper part 11.

[0070] Understandably, the liquid connection end 17 is used to connect the heat dissipation component 15 inside the main body 10 and the liquid passage outside the main body 10 to realize liquid cooling heat dissipation circulation. Since the first orifice 1214 and the second orifice 1215 are respectively located at both ends of the second hole 121, the cross-sectional area of ​​the second hole 121 increases along the direction from the first orifice 1214 to the second orifice 1215, making the space occupied by the first orifice 1214 smaller, providing more space for the liquid connection end 17. The liquid connection end 17 is located here to improve the compactness of the overall structure of the main body 10, and this position is away from the air outlet side of the fan 14, heat dissipation component 15 and other heat sources, avoiding the coolant from absorbing additional heat and improving cooling efficiency.

[0071] Please continue reading. Figure 2Furthermore, the second air vent 1211 is provided with a plurality of second ventilation holes 12111 arranged in an array in the first direction.

[0072] Understandably, the smaller diameter of the second ventilation holes 12111 arranged in the array can block larger foreign objects and maintain sufficient ventilation. Multiple second ventilation holes 12111 can also prevent single-point blockage from causing the overall airflow path to fail. The array arrangement disperses the airflow direction, avoids the formation of local high-temperature areas, and improves the uniformity of heat dissipation.

[0073] Please combine Figures 2 to 5 Furthermore, the fan 14 is located between the first hole 111 and the second hole 121. The direction of the airflow driven by the fan 14 is: entering the cavity 13 from the first air vent 1111, passing through the fan 14, and exiting from the second air vent 1211.

[0074] Understandably, when airflow enters cavity 13 from first air inlet 1111 and exits from second air inlet 1211 after passing through fan 14, since first air inlet 1111 is located at the upper part 11, it is farther from the contact surface such as ground or tabletop compared to second air inlet 1211 at the lower part 12. Using first air inlet 1111 as air inlet makes it more difficult to suck in foreign objects attached to the contact surface. The relatively dense cold air is driven downward by fan 14, which can enhance the cooling of the heat source at the upper part of main body 10 and accelerate convection.

[0075] Please continue to combine Figures 2 to 5 Furthermore, a circuit board 18 and a heat dissipation bracket 19 are also provided in the lower part 12. The first air vent 1111, circuit board 18, fan 14, heat dissipation component 15 and second air vent 1211 are arranged in sequence. The circuit board 18 has a third through hole 181 corresponding to the fan 14. The circuit board 18 is set on the heat dissipation bracket 19, and the heat dissipation bracket 19 is sleeved on the fan 14 and the heat dissipation component 15.

[0076] Understandably, since the heat sink 19 is mounted on the fan 14 and the heat dissipation component 15, it provides space for the fan 14 and the heat dissipation component 15, improving the structural stability of the fan 14 and the heat dissipation component 15. The positional relationship between the heat sink 19, the heat dissipation component 15, and the fan 14 forms a rigid, integrated heat dissipation module, reducing space redundancy and improving the integration of the assembly. The circuit board 18 is mounted on the heat sink 19, no longer occupying additional independent space, but becoming part of the airflow path, achieving efficient integration of the space occupied by the circuit board 18. The circuit board 18 has a third through hole 181 corresponding to the fan 14, so that when the airflow passes through the third through hole 181 through the circuit board 18, it can also carry away the heat of the circuit board 18. The first air vent 1111, the circuit board 18, the fan 14, the heat dissipation component 15, and the second air vent 1211 are arranged in sequence, which can achieve gradient cooling for the two major heat sources, the heat dissipation component 15 and the circuit board 18.

[0077] Please combine Figure 2 and Figure 3 Furthermore, the area of ​​the first vent 1111 is greater than or equal to 10 cm². 2 and less than or equal to 50cm 2 The area of ​​the second air vent 1211 is greater than or equal to 10 cm². 2 and less than or equal to 50cm 2 .

[0078] Understandably, the above parameter range can achieve multiple balances between air pressure and air volume, and block foreign objects, ensuring that the fan 14 operates at the optimal operating point, avoiding excessive wind resistance due to too small an area and resulting in whistling; or insufficient air pressure due to too large an area, and ensuring that the air outlet area is reduced while meeting the heat dissipation requirements, thereby reducing the probability of foreign objects entering the cavity 13.

[0079] Please combine Figures 2 to 4 Furthermore, the inner wall of the first hole 111 is provided with a mounting position 1112, and the handpiece 20 is installed in the mounting position 1112; the heat dissipation component 15 is installed in the lower part 12, and the first air vent 1111, fan 14, heat dissipation component 15, and second air vent 1211 are arranged in sequence. The hair removal device 1 also includes a liquid pipe 30, which includes an inlet pipe 31 and an outlet pipe 32. The heat dissipation component 15, inlet pipe 31, handpiece 20, and outlet pipe 32 are connected end to end in sequence. The direction of the airflow driven by the fan 14 is: from the first air vent 1111 into the cavity 13, and after passing through the fan 14 and the heat dissipation component 15 in sequence, it is discharged from the second air vent 1211.

[0080] Understandably, since the inner wall of the first hole 111 is provided with a mounting position 1112, and the handpiece 20 is placed in the mounting position 1112, the space of the first hole 111 is used to accommodate the handpiece 20, making the structure of the hair removal device 1 more compact. The liquid inlet pipe 31 is the pipe through which the liquid cooled by the heat dissipation component 15 enters the handpiece 20, and the liquid outlet pipe 32 is the pipe through which the liquid returns to the heat dissipation component 15 after cooling the handpiece 20. The liquid cooled by the heat dissipation component 15 enters the handpiece 20 through the liquid inlet pipe 31. After cooling the handpiece 20, the liquid returns to the heat dissipation component 15 through the liquid outlet pipe 32. The fan 14 removes the heat of the liquid flowing through the heat dissipation component 15 by accelerating the airflow, ensuring that the heat dissipation of the hair removal device 1 is efficient and stable.

[0081] Please combine Figure 2 and Figure 6 The second embodiment of this utility model provides a hair removal device 1a. The hair removal device 1a differs from the hair removal device 1 of the first embodiment of this utility model in that the direction of the airflow driven by the fan 14 is: it enters the cavity 13 from the second air vent 1211 and is discharged from the first air vent 1111 after passing through the fan 14.

[0082] Understandably, when airflow enters cavity 13 from second air vent 1211 and exits from first air vent 1111 after passing through fan 14, the airflow enters cavity 13 from second air vent 1211 and first passes through the bottom of main body 10, which can enhance the cooling of the bottom heat source.

[0083] Compared with existing technologies, the hair removal device of this invention has the following advantages: 1. In one embodiment of this utility model, the hair removal device includes a main body and a handpiece, which are connected by a pipe. A cavity is formed within the main body, and a fan and a heat dissipation assembly are disposed within the cavity. The heat dissipation assembly is disposed on the air inlet or outlet side of the fan, and the heat dissipation assembly and the handpiece are connected by a pipe. The main body includes an upper part and a lower part arranged sequentially along a first direction. The upper part has a first hole, and the lower part has a second hole. A first air vent is formed on the inner wall of the first hole, and a second air vent is formed on the inner wall of the second hole. The first air vent, the cavity, and the second air vent are sequentially connected. Because the main body has a first hole and a second hole in the upper and lower parts respectively, and the first hole has a first air vent on its inner wall, and the second hole has a second air vent on its inner wall, the first and second air vents are respectively hidden within the inner walls of the first and second holes, rather than on the surface of the main body. This avoids direct exposure to the external environment and effectively prevents dust, hair, and other foreign objects from entering the main body, solving the problem of poor dustproof performance of the main body in traditional hair removal devices. The heat dissipation component and the handpiece are connected by pipes, allowing the heat dissipation component to exchange heat with the handpiece via liquid cooling. The heat dissipation component is located on the air inlet or outlet side of the fan, and the fan accelerates airflow to improve the heat dissipation efficiency of the heat dissipation component. The first air vent, the cavity, and the second air vent are connected sequentially. The fan drives the airflow to flow sequentially through the first air vent, the cavity, and the second air vent; or sequentially through the second air vent, the cavity, and the first air vent, thus improving heat dissipation efficiency. Furthermore, due to the characteristic of the through holes being open at both ends, and the fact that both the first and second holes are tilted relative to the first direction, regardless of the angle at which the main body tilts, at least one side of the first and second holes will remain open without being blocked. This avoids the problem of traditional exposed air vents on the main body, where the airflow is obstructed when the main body tilts, leading to decreased heat dissipation efficiency or even damage to the equipment.

[0084] 2. In one embodiment of this utility model, at least one of the axial direction of the first hole and the axial direction of the second hole forms an angle with the first direction. When the axial direction of the first hole forms an angle with the first direction, when external dust, hair, or other foreign objects fall, they are unlikely to fall directly into the cavity along the first direction due to the angle. The foreign objects need to overcome gravity and move along the inclined path caused by the angle. Most of them will slide off the edge of the first air vent under the action of gravity, rather than directly entering the interior of the main body. Similarly, when the axial direction of the second hole forms an angle with the first direction, external foreign objects are also unlikely to directly enter the cavity, thus improving the dustproof effect of the main body.

[0085] 3. In one embodiment of this utility model, the axial direction of the first hole and the axial direction of the second hole are perpendicular to the first direction. Since the first direction is the height direction of the hair removal device, the perpendicular arrangement of the first hole and the second hole relative to the first direction facilitates the horizontal entry and exit of air and prevents foreign objects in the vertical direction from falling directly into the cavity due to gravity.

[0086] 4. In one embodiment of this utility model, the first air outlet is an annular air outlet distributed circumferentially along the inner wall of the first hole. The annular air outlet enables the air to flow uniformly in the circumferential direction, avoiding local dead air zones and improving the uniformity of heat dissipation. Compared with single-point or strip-shaped air outlets, the annular air outlet design can increase the effective ventilation area, reduce ventilation resistance, and improve fan efficiency. Moreover, the circumferentially distributed annular air outlet disperses the airflow direction, reducing the possibility of foreign objects directly intruding in a single direction. In addition, even if a part of the annular air outlet is blocked by foreign objects, the remaining part can still maintain the effectiveness of ventilation.

[0087] 5. In one embodiment of the present invention, the main body includes a first shell and a second shell. The second shell is sleeved on the outside of the first shell. The first shell and the second shell are spaced apart to form a first air vent. This makes the structure of the main body with the first air vent more compact. The first air vent is directly formed by nesting the first shell and the second shell, which simplifies the assembly process. At the same time, it also helps to hide the internal structure of the main body, enhance the concealment of the first air vent, and improve the dustproof effect.

[0088] 6. In one embodiment of this utility model, a first curved portion is provided at the first air vent corresponding to the first air vent, and a second curved portion is provided at the second air vent corresponding to the first air vent. The extension direction of the first air vent changes between the first curved portion and the second curved portion. The second curved portion has a first ventilation hole, which connects the first air vent and the cavity. Through the geometric characteristics of the bending of the first and second curved portions, the extension direction of the first air vent changes between the first and second curved portions, forming a directional ventilation channel. Compared with a straight channel, the change in the extension direction of the first air vent can effectively block foreign objects: when a lighter foreign object moves with the airflow, it will move along its original direction due to inertia. However, the change in the extension direction of the first air vent causes the airflow to change direction, and the foreign object settles due to inertia after impacting the first or second curved portion, thus preventing it from entering the cavity. For longer foreign objects such as hair and fibers, they can enter the straight channel directly, but the change in the extension direction of the first air vent creates a dead angle, making it difficult for the foreign object to enter the cavity along a tortuous path. The first ventilation hole in the second bend allows airflow to pass through while further isolating larger foreign objects.

[0089] 7. In one embodiment of this utility model, the first air vent includes a first branch, a second branch, and a third branch. The first and second branches are located on both sides of the inner wall of the first hole, and the third branch is located in the middle of the inner wall of the first hole. There are two sets of first ventilation holes. The second housing has one set of first ventilation holes at the corresponding position between the first and third branches, and another set of first ventilation holes at the corresponding position between the second and third branches. The first air vent, including multiple branches such as the first, second, and third branches, increases the ventilation area, improves heat dissipation efficiency, and ensures stable operation of the hair removal device. The first and second branches are distributed on both sides of the inner wall of the first hole, and the third branch is located in the middle of the inner wall of the first hole. This distributed layout enables multi-angle and multi-area ventilation, optimizes the uniformity of the airflow path, and avoids the problem of concentrated local airflow and insufficient airflow in other areas. Although the total area of ​​the multiple branches is large, the individual size of each branch can still remain small, effectively blocking foreign objects.

[0090] 8. In one embodiment of this utility model, the inner wall of the side of the second hole closest to the first hole is defined as the first hole wall. The second air outlet is opened on the first hole wall, which can effectively shorten the air duct length, making the position of the second air outlet closer to the fan, reducing the path loss of airflow in the cavity, and improving ventilation efficiency. Opening the second air outlet on the first hole wall makes the second air outlet more concealed and also prevents external dust from falling directly into the cavity through the second air outlet, thus improving the dustproof effect.

[0091] 9. In one embodiment of this utility model, the inner wall of the side of the second hole furthest from the first hole is defined as the second hole wall, and the second hole wall is inclined relative to the first hole wall; the second hole is a through hole, including a first opening and a second opening, which are respectively located at both ends of the second hole; the cross-sectional area of ​​the second hole increases along the direction from the first opening to the second opening, forming a funnel-shaped second hole, which conforms to the laws of fluid mechanics and reduces turbulence and wind pressure loss. The inclined second hole wall also plays a guiding role in airflow, making the airflow more stable and smooth.

[0092] 10. In one embodiment of this utility model, the main body further includes a liquid circuit connection end, which is located on the side away from the upper part of the first orifice. The liquid circuit connection end is used to connect the heat dissipation component inside the main body and the liquid passage outside the main body to realize liquid cooling heat dissipation circulation. Since the first orifice and the second orifice are respectively located at both ends of the second orifice, and the cross-sectional area of ​​the second orifice increases along the direction from the first orifice to the second orifice, the space occupied by the first orifice is smaller, providing more space for the liquid circuit connection end. The liquid circuit connection end is located here to improve the compactness of the overall structure of the main body. Moreover, this position is away from the air outlet side of the fan, heat dissipation components and other heat sources, avoiding the coolant from absorbing additional heat and improving cooling efficiency.

[0093] 11. In one embodiment of the present invention, the second air outlet is provided with a plurality of arrayed second ventilation holes in the first direction. The aperture of the arrayed second ventilation holes is relatively smaller, which can block larger foreign objects and maintain sufficient ventilation. The multiple second ventilation holes can also prevent single-point blockage from causing the overall failure of the airflow path. The array arrangement disperses the airflow direction, avoids the formation of local high temperature areas, and improves the uniformity of heat dissipation.

[0094] 12. In one embodiment of this utility model, the fan is located between the first hole and the second hole. The direction of the airflow driven by the fan is: entering the cavity from the first air inlet, passing through the fan, and exiting from the second air inlet; or, entering the cavity from the second air inlet, passing through the fan, and exiting from the first air inlet. When the airflow enters the cavity from the first air inlet and exits from the second air inlet after passing through the fan, since the first air inlet is located at the top, it is farther from the ground or table surface than the second air inlet at the bottom. Using the first air inlet as the air inlet makes it more difficult to suck in foreign objects attached to the contact surface. The relatively dense cold air is driven downward by the fan, which can enhance the cooling of the heat source at the top of the main body and accelerate convection. When the airflow enters the cavity from the second air inlet and exits from the first air inlet after passing through the fan, the airflow enters the cavity from the second air inlet and first passes through the bottom of the main body, which can enhance the cooling of the bottom heat source.

[0095] 13. In one embodiment of this utility model, a circuit board and a heat dissipation bracket are further provided in the lower part. The first air vent, circuit board, fan, heat dissipation component, and second air vent are arranged sequentially. The circuit board has a third through hole corresponding to the fan. The circuit board is mounted on the heat dissipation bracket, which is fitted onto the fan and heat dissipation component. Because the heat dissipation bracket is fitted onto the fan and heat dissipation component, it provides space for the fan and heat dissipation component, improving the stability of the fan and heat dissipation component structure. The positional relationship of the heat dissipation bracket, heat dissipation component, and fan forms a rigid, integrated heat dissipation module, reducing space redundancy and improving the integration of the assembly. The circuit board is mounted on the heat dissipation bracket and no longer occupies additional independent space, but becomes part of the airflow path, achieving efficient integration of the space occupied by the circuit board. The circuit board has a third through hole corresponding to the fan, so that when the airflow passes through the third through hole through the circuit board, it can also carry away the heat of the circuit board. The sequential arrangement of the first air vent, circuit board, fan, heat dissipation component, and second air vent can achieve gradient cooling for the two major heat sources: the heat dissipation component and the circuit board.

[0096] 14. In one embodiment of this utility model, the area of ​​the first air vent is greater than or equal to 10 cm². 2 and less than or equal to 50cm 2 The area of ​​the second air vent is greater than or equal to 10 cm². 2 and less than or equal to 50cm 2The above parameter range can achieve multiple balances between air pressure and air volume, and the blocking of foreign objects, ensuring that the fan operates at the optimal operating point, avoiding excessive wind resistance and whistling due to an excessively small area, or insufficient air pressure due to an excessively large area, and ensuring that the air outlet area is reduced while meeting the heat dissipation requirements, thus reducing the probability of foreign objects entering the cavity.

[0097] 15. In one embodiment of this utility model, the inner wall of the first hole is provided with a mounting position, and the handpiece is mounted in the mounting position. The heat dissipation component is located in the lower part, and the first air vent, fan, heat dissipation component, and second air vent are arranged sequentially. The hair removal device also includes a liquid passage pipe, which includes an inlet pipe and an outlet pipe. The heat dissipation component, inlet pipe, handpiece, and outlet pipe are connected end to end in sequence. The direction of the airflow driven by the fan is: entering the cavity from the first air vent, passing through the fan and heat dissipation component in sequence, and then exiting from the second air vent. Because the inner wall of the first hole is provided with a mounting position, and the handpiece is mounted in the mounting position, the space of the first hole is used to accommodate the handpiece, making the structure of the hair removal device more compact. The inlet pipe refers to the pipe through which the liquid cooled by the heat dissipation component enters the handpiece, and the outlet pipe refers to the pipe through which the liquid returns to the heat dissipation component after cooling the handpiece. The liquid cooled by the heat dissipation component enters the handpiece through the inlet pipe, and after cooling the handpiece, the liquid returns to the heat dissipation component through the outlet pipe. The fan removes the heat of the liquid flowing through the heat dissipation component by accelerating the airflow, ensuring that the heat dissipation of the hair removal device is efficient and stable.

[0098] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A hair removal device, characterized in that: The hair removal device includes a main body and a handpiece, which are connected by a pipe. The main body has a cavity, and a fan and a heat dissipation component are installed inside the cavity. The heat dissipation component is located on the air inlet or air outlet side of the fan, and the heat dissipation component and the handpiece are connected by a pipe. The main body includes an upper part and a lower part arranged sequentially along a first direction. The upper part has a first hole, and the lower part has a second hole. The inner wall of the first hole has a first air vent, and the inner wall of the second hole has a second air vent. The first air vent, the cavity, and the second air vent are connected sequentially.

2. The hair removal device as described in claim 1, characterized in that: At least one of the axial direction of the first hole and the axial direction of the second hole forms an angle with the first direction.

3. The hair removal device as described in claim 2, characterized in that: The axial direction of the first hole and the axial direction of the second hole are perpendicular to the first direction.

4. The hair removal device as described in claim 1, characterized in that: The first air vent is an annular air vent distributed circumferentially along the inner wall of the first hole.

5. The hair removal device as described in claim 1, characterized in that: The main body includes a first shell and a second shell, the second shell being sleeved on the outside of the first shell, and the first shell and the second shell being spaced apart to form the first air vent.

6. The hair removal device as described in claim 5, characterized in that: The first housing has a first curved portion corresponding to the first air vent, and the second housing has a second curved portion corresponding to the first air vent. The extension direction of the first air vent changes between the first curved portion and the second curved portion. The second curved portion has a first ventilation hole, which connects the first air vent and the cavity.

7. The hair removal device as described in claim 6, characterized in that: The first air vent includes a first branch, a second branch, and a third branch; the first branch and the second branch are located on both sides of the inner wall of the first hole, and the third branch is opened in the middle of the inner wall of the first hole; there are two sets of the first ventilation holes, and the second housing opens one set of the first ventilation holes at the corresponding position between the first branch and the third branch, and the second housing opens another set of the first ventilation holes at the corresponding position between the second branch and the third branch.

8. The hair removal device as described in claim 1, characterized in that: The inner wall of the second hole near the first hole is defined as the first hole wall, and the second air vent is opened on the first hole wall.

9. The hair removal device as described in claim 8, characterized in that: The inner wall of the second hole away from the first hole is defined as the second hole wall, and the second hole wall is inclined relative to the first hole wall; the second hole is a through hole, and the second hole includes a first opening and a second opening, which are respectively located at both ends of the second hole, and the cross-sectional area of ​​the second hole increases along the direction from the first opening to the second opening.

10. The hair removal device as described in claim 9, characterized in that: The main body also includes a liquid connection end, which is located on the side of the first orifice away from the upper part.

11. The hair removal device as described in claim 1, characterized in that: The second air outlet has multiple second ventilation holes arranged in an array in the first direction.

12. The hair removal device as described in claim 1, characterized in that: The fan is located between the first hole and the second hole, and the direction of the airflow driven by the fan is: It enters the cavity from the first air inlet, passes through the fan, and is discharged from the second air inlet; Alternatively, the air enters the cavity through the second air inlet, passes through the fan, and exits through the first air inlet.

13. The hair removal device as described in claim 12, characterized in that: The lower part is also provided with a circuit board and a heat dissipation bracket. The first air vent, circuit board, fan, heat dissipation component and second air vent are arranged in sequence. The circuit board has a third through hole corresponding to the fan. The circuit board is set on the heat dissipation bracket. The heat dissipation bracket is sleeved on the fan and the heat dissipation component.

14. The hair removal device as described in claim 1, characterized in that: The area of ​​the first air vent is greater than or equal to 10 cm². 2 and less than or equal to 50cm 2 The area of ​​the second air vent is greater than or equal to 10 cm². 2 and less than or equal to 50cm 2 .

15. The hair removal device as described in claim 1, characterized in that: The inner wall of the first hole is provided with a mounting position, and the hand tool is installed in the mounting position; the heat dissipation component is installed in the lower part, and the first air vent, fan, heat dissipation component and second air vent are arranged in sequence. The hair removal device also includes a liquid passage pipe, which includes an inlet pipe and an outlet pipe. The heat dissipation component, inlet pipe, hand tool and outlet pipe are connected end to end in sequence. The direction of the airflow driven by the fan is: entering the cavity from the first air vent, passing through the fan and the heat dissipation component in sequence and then being discharged from the second air vent.

Images