An epilator

Abstract

The utility model relates to epilator technical field, especially in kind of epilator, epilator includes main seat body, hand tool and liquid pipe, main seat body includes upper part and lower part, and upper part is provided with installation site, and hand tool sets up in installation site, and is provided with heat dissipation circulating device in main seat body, and liquid pipe intercommunication heat dissipation circulating device and hand tool, and heat dissipation circulating device includes the heat dissipation subassembly and liquid pump of intercommunication, and heat dissipation subassembly sets up in lower part, and liquid pump sets up in upper part. Heat dissipation subassembly is relatively liquid pump bigger in volume and weight, the utility model sets up heat dissipation subassembly in lower part, and liquid pump sets up in upper part, forms the functional division of vertical direction, so that the center of gravity of epilator is lower, and it is not easy to pour, improves the stability of epilator, avoids the problem that the body of epilator is too wide and big in volume caused by traditional horizontal side -by -side layout, compresses the redundant space inside main seat body, makes the volume of epilator significantly reduce, is more in accord with the demand of light and thin, small -size.

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 rapid flashing, which can lead to overheating. Excessive heat not only reduces the efficiency and lifespan of the light source but can also burn the skin, posing safety hazards and severely impacting the user experience. Current hair removal devices employ water-cooling structures to address this issue, but these structures suffer from significant size and integration problems, resulting in a bulky and less compact design. The overall size of the device is too large, making it inconvenient for users to use and carry. 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, a handpiece, and a liquid passage. The main body includes an upper part and a lower part. The upper part is provided with a mounting position, and the handpiece is disposed in the mounting position. The main body is provided with a heat dissipation and circulation device. The liquid passage connects the heat dissipation and circulation device and the handpiece. The heat dissipation and circulation device includes a heat dissipation component and a liquid pump that are connected in communication. The heat dissipation component is disposed in the lower part, and the liquid pump is disposed in the upper part.

[0004] Preferably, the liquid passage includes an inlet pipe and an outlet pipe, and the outlet pipe, heat dissipation assembly, liquid pump, and inlet pipe are connected in sequence; or, the outlet pipe, liquid pump, heat dissipation assembly, and inlet pipe are connected in sequence.

[0005] Preferably, the heat dissipation assembly includes a water drain, which includes a fin assembly, at least one cooling pipe, a first collecting cavity and a second collecting cavity. The cooling pipe passes through the fin assembly. The first collecting cavity connects one end of the cooling pipe to the liquid inlet pipe, and the second collecting cavity connects the other end of the cooling pipe to the liquid outlet pipe.

[0006] Preferably, a heat dissipation bracket is provided in the lower part, the heat dissipation bracket has a cavity, the heat dissipation component also includes a fan, the fan and the water drain are arranged sequentially in the cavity in a direction away from the hand tool, and the water drain is arranged at the air outlet or air inlet of the fan.

[0007] Preferably, a first circuit board is provided on the side of the heat dissipation bracket near the handpiece, the first circuit board has an opening corresponding to the fan, and the first circuit board is electrically connected to the heat dissipation circulation device and the handpiece.

[0008] Preferably, the hair removal device further includes a capacitor assembly disposed inside the upper part, the upper part having a first hole, the mounting position being disposed on the inner wall of the first hole, and the capacitor assembly and the liquid pump being disposed on opposite sides of the handpiece.

[0009] Preferably, the pump is a gear pump; or a magnetic pump; or a centrifugal pump; or a peristaltic pump; or a diaphragm pump; or a plunger pump.

[0010] Preferably, both the upper and lower parts are arc-shaped, the lower part protrudes in a direction away from the upper part to form a planar support part, and the average radius of curvature of the upper part is smaller than the average radius of curvature of the lower part.

[0011] Preferably, the thickness of the main body increases along the height direction from the upper part to the lower part and forms an inclined surface. The heat dissipation bracket is provided with a corresponding inclined part on the side near the inclined surface. The hair removal device also includes a second circuit board, which is disposed on the inclined part. The second circuit board is electrically connected to the hand tool, the heat dissipation circulation device and the first circuit board. The inclined surface is provided with an interaction part corresponding to the second circuit board.

[0012] Preferably, the hair removal device further includes a flow observation device, defining a liquid passage formed by the heat dissipation circulation device, the liquid pipe, and the hand tool connected end to end in sequence. The flow observation device is disposed on the liquid passage, and an observation chamber is opened in the flow observation device. The flow observation device further includes an impeller and a visualization element. The impeller is disposed in the observation chamber and is rotatably connected to the cavity wall of the observation chamber. The visualization element is disposed on at least one side wall of the flow observation device and separates the outside world from the observation chamber.

[0013] Preferably, the hand tool includes a hand tool housing, a light-emitting element is disposed inside the hand tool, the hand tool housing has a light outlet, the direction of the light-emitting element toward the light outlet is defined as the light emission direction, the flow observation device is disposed at the hand tool, and the visualization element is at least partially exposed on the side of the hand tool housing located in the light emission direction; or, the hand tool includes a hand tool housing, a light-emitting element is disposed inside the hand tool, the hand tool housing has a light outlet, the direction of the light-emitting element toward the light outlet is defined as the light emission direction, the flow observation device is disposed at the hand tool, and the visualization element is at least partially exposed on the side of the hand tool housing opposite to the light emission direction; or, the main body includes a base shell, the flow observation device is disposed at the main body, and the visualization element is at least partially exposed on one side of the base shell; or, the liquid passage tube is fitted with an outer tube, the flow observation device is disposed at the liquid passage tube between the main body and the hand tool, and the visualization element is at least partially exposed on one side of the outer tube; or, the hand tool includes a hand tool housing, and the visualization element is at least partially exposed on the periphery of the hand tool housing.

[0014] Preferably, the hand tool includes a thermally conductive insulating component, a light-emitting component, and a light-transmitting component arranged in sequence. The thermally conductive insulating component has a liquid-filled cavity. At least one side of the light-transmitting component is provided with a cooling chip. The side of the cooling chip away from the light-transmitting component is provided with a liquid-cooled plate. A flow channel is provided in the liquid-cooled plate. The liquid-filled pipe includes an inlet pipe and an outlet pipe. The heat dissipation circulation device, the inlet pipe, the flow channel, the liquid-filled cavity, and the outlet pipe are connected end to end in sequence.

[0015] Preferably, the main body further includes a housing, and an isolation element is disposed inside the main body. The housing and the isolation element enclose an isolation space, and the liquid pump is disposed within the isolation space.

[0016] Preferably, the liquid passage includes an inlet pipe and an outlet pipe, and the flow rates of both the inlet pipe and the outlet pipe are between 0.2 L / min and 1.5 L / min.

[0017] 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, a handpiece, and a liquid passage pipe. The main body includes an upper part and a lower part, with a mounting position on the upper part. The handpiece is mounted on the mounting position. A heat dissipation and circulation device is installed inside the main body. The liquid passage pipe connects the heat dissipation and circulation device and the handpiece. The heat dissipation and circulation device includes a heat dissipation component and a liquid pump connected in series. The heat dissipation component is located on the lower part, and the liquid pump is located on the upper part. The liquid passage pipe connects the heat dissipation and circulation device and the handpiece, forming a complete cooling and heat dissipation closed loop between the heat dissipation and circulation device, the liquid passage pipe, and the handpiece. After being cooled by the heat dissipation and circulation device, the liquid flows into the handpiece through the liquid passage pipe, carrying away the heat from the handpiece during the flow. The liquid then flows back to the heat dissipation and circulation device through the liquid passage pipe, repeating the cycle. Because the upper part has a mounting position, and the handpiece is positioned there, it is more ergonomically designed, making it easier for the user to pick up and place it. Compared to the liquid pump, the heat dissipation component is often larger and holds a greater volume of liquid, resulting in a heavier device. By placing the heat dissipation component in the lower part and the liquid pump in the upper part, a vertical functional partition is created. This lowers the center of gravity of the hair removal device, making it less prone to tipping over and improving its stability. This design avoids the problems of excessive width and size associated with traditional horizontal side-by-side layouts. By reducing redundant space inside the main body, the overall size of the hair removal device is significantly reduced, better meeting the demands for a thinner and smaller design.

[0018] 2. In one embodiment of this utility model, the liquid-passing pipe includes an inlet pipe and an outlet pipe, with the outlet pipe, heat dissipation component, liquid pump, and inlet pipe connected in sequence; or, the outlet pipe, liquid pump, heat dissipation component, and inlet pipe are connected in sequence. The inlet pipe refers to the pipe through which the liquid cooled by the heat dissipation circulation device enters the handpiece, and the outlet pipe refers to the pipe through which the liquid returns to the heat dissipation circulation device after cooling the handpiece. When the outlet pipe, heat dissipation component, liquid pump, and inlet pipe are connected in sequence, the liquid pump comes into contact with the low-temperature liquid cooled by the heat dissipation component, which can reduce cavitation and thermal damage and improve the service life of the liquid pump. When the outlet pipe, liquid pump, heat dissipation component, and inlet pipe are connected in sequence, the output end of the liquid pump is connected to the input end of the heat dissipation component, and the liquid pump can more stably push the liquid through the high-resistance heat dissipation component, especially against the resistance brought by the complex and numerous heat dissipation pipes of the heat dissipation component, thus improving the circulation efficiency.

[0019] 3. In one embodiment of this utility model, the heat dissipation component includes a water drain, which comprises a fin assembly, at least one cooling pipe, a first collecting cavity, and a second collecting cavity. The cooling pipe passes through the fin assembly. The first collecting cavity connects one end of the cooling pipe to the inlet pipe, and the second collecting cavity connects the other end of the cooling pipe to the outlet pipe. The cooling pipe is used for liquid to pass through and dissipate heat during the process. The fin assembly is used to increase the heat dissipation area of ​​the cooling pipe. The first collecting cavity is used to collect the low-temperature liquid after cooling by the water drain, and the second collecting cavity is used to collect the high-temperature liquid after cooling the handpiece, so as to serve as a buffer space to balance the local pressure at the inlet and outlet of the cooling pipe. The first and second collecting cavities can provide a larger liquid storage space to increase the heat capacity. When the hair removal device generates a large amount of heat through continuous pulse operation, the larger heat capacity can fully absorb this heat and delay the sudden rise in liquid temperature.

[0020] 4. In one embodiment of this utility model, a heat dissipation bracket is provided in the lower part. The heat dissipation bracket has a cavity. The heat dissipation component also includes a fan. The fan and the water duct are arranged sequentially in the cavity in a direction away from the hand tool. The water duct is located at the air outlet or air inlet of the fan. The cavity in the heat dissipation bracket provides space and support for the fan and the water duct. The water duct being located at the air outlet or air inlet of the fan can accelerate airflow to dissipate heat from the water duct, improving the heat dissipation efficiency of the water duct. The liquid cooled by the water duct has a lower temperature, which can also improve the cooling effect of the liquid on the hand tool.

[0021] 5. In one embodiment of this utility model, a first circuit board is provided on the side of the heat dissipation bracket near the handpiece. The placement of the first circuit board here makes the structure of the hair removal device more compact. The first circuit board has an opening corresponding to the fan, so that under the action of the fan, airflow passes through the opening and through the first circuit board, reducing airflow resistance. At the same time, the air circulation at the first circuit board is accelerated, which can also dissipate heat from the first circuit board. The first circuit board is electrically connected to the heat dissipation circulation device and the handpiece, and can be used for the transmission and control of power and control signals of the heat dissipation circulation device and the handpiece.

[0022] 6. In one embodiment of this utility model, the hair removal device further includes a capacitor assembly. The capacitor assembly is disposed in the upper part, and a first hole is opened in the upper part. The mounting position is disposed on the wall of the first hole. The capacitor assembly and the liquid pump are respectively disposed on opposite sides of the handpiece. The capacitor assembly stores electrical energy and discharges instantaneously when energy emission is triggered, providing peak power for the laser or pulsed light element of the hair removal device. Because the upper part has a first hole, the mounting position is disposed on the inner wall of the first hole, the handpiece is disposed at the mounting position, the first hole provides a space for the handpiece, the first hole separates the upper part, and the capacitor assembly and the liquid pump are respectively disposed on opposite sides of the handpiece, making full use of the space on both sides separated by the first hole, resulting in a more compact structure inside the main body.

[0023] 7. In one embodiment of this utility model, the liquid pump is a gear pump; or a magnetic pump; or a centrifugal pump; or a peristaltic pump; or a diaphragm pump; or a plunger pump. Since heat dissipation components often have numerous pipes leading to high resistance, gear pumps have the advantages of high head and strong self-priming, making them suitable for the low flow rate and high pressure characteristics of liquid cooling in hair removal devices. Magnetic pumps, centrifugal pumps, peristaltic pumps, diaphragm pumps, or plunger pumps can also provide power for liquid circulation.

[0024] 8. In one embodiment of this utility model, both the upper and lower parts are arc-shaped. The lower part protrudes in a direction away from the upper part to form a planar support portion. The average radius of curvature of the upper part is smaller than that of the lower part. The lower part protrudes in a direction away from the upper part to form a planar support portion, allowing the hair removal device to be placed stably. Both the upper and lower parts are arc-shaped, with the average radius of curvature of the upper part being smaller than that of the lower part, forming an oval structure that is smaller at the top and larger at the bottom. The smaller volume of the upper part facilitates the placement of relatively small components such as the liquid pump and capacitor assembly, while the larger volume of the lower part facilitates the placement of relatively large heat dissipation components. This fully utilizes the geometric features of the upper and lower parts, avoids wasting irregularly shaped space, makes the structure more compact, reduces volume redundancy, and lowers the center of gravity, improving the miniaturization and stability of the overall structure of the hair removal device.

[0025] 9. In one embodiment of this utility model, the thickness of the main body increases along the height direction from top to bottom, forming an inclined surface. A heat dissipation bracket is provided with a corresponding inclined portion near the inclined surface. The hair removal device also includes a second circuit board, which is disposed on the inclined portion. The second circuit board is electrically connected to the handpiece, the heat dissipation circulation device, and the first circuit board. An interactive portion corresponding to the second circuit board is provided on the inclined surface. The thickness of the main body increases along the height direction from top to bottom, resulting in a smaller upper thickness and a larger lower thickness. This lowers the overall center of gravity of the hair removal device, making it less prone to tipping over. Simultaneously, the upper part has a relatively smaller volume, while the lower part has a relatively larger volume. The upper part can easily accommodate relatively small components such as the liquid pump and capacitor assembly, while the heat dissipation assembly is relatively large. The larger lower thickness provides sufficient space to accommodate the heat dissipation assembly, thus providing different accommodating spaces for components with different weights and sizes, improving the compactness of the main body structure. The thickness of the main body increases along the height direction from the top to the bottom to form a slope. The inclined part of the heat dissipation bracket corresponds to this slope. Since the second circuit board is set on the inclined part, the slope is provided with an interactive part corresponding to the second circuit board. The user's operation action can be converted into electrical signals of the second circuit board through the interactive part. The tilt angle of the interactive part on the slope helps to be displayed in the direction of the user's line of sight, avoiding vertical or reflection problems, and making it convenient for the user to observe or perform interactive operations.

[0026] 10. In one embodiment of the present invention, the hair removal device further includes a flow observation device, which defines a liquid passage formed by a heat dissipation circulation device, a liquid pipe, and a hand tool connected end to end in sequence. The flow observation device is disposed on the liquid passage and has an observation cavity. The flow observation device also includes an impeller and a visualization element. The impeller is disposed in the observation cavity and is rotatably connected to the cavity wall of the observation cavity. The visualization element is disposed on at least one side wall of the flow observation device and separates the outside world from the observation cavity. Because the flow observation device is located on the liquid path, and the observation chamber inside the flow observation device is equipped with an impeller, when the liquid circulates and cools along the liquid path, the impeller rotates due to the impact of the liquid flow. The visualization component is located on at least one side wall of the flow observation device. The visualization component serves to isolate and facilitate the observation of the impeller, separating the outside world from the observation chamber to prevent liquid leakage. At the same time, the visualization component allows users to observe the state of the impeller inside the observation chamber from the outside. The impeller transforms the implicit operation of the hair removal device's liquid cooling into the intuitive and perceptible physical phenomenon of impeller rotation. This not only meets the requirements for the reliability of the hair removal device's operation, allowing users to know the cooling operation of the hair removal device based on the impeller rotation speed, but also allows for direct acquisition of fault information when the impeller rotation is abnormal; it also aligns with the pursuit of technological sophistication and interactivity by the hair removal device as a consumer product.

[0027] 11. In one embodiment of this utility model, the handpiece includes a handpiece shell, a light-emitting element is disposed inside the handpiece, the handpiece shell has a light outlet, the direction of the light-emitting element toward the light outlet is defined as the light emission direction, the flow rate observation device is disposed at the handpiece, and the visualization element is at least partially exposed on the side of the handpiece shell located in the light emission direction, which is more in line with ergonomics and user operating habits. When the user picks up the handpiece to prepare for hair removal, it is easier to observe the side of the handpiece shell located in the light emission direction of the hair removal device. The placement of the visualization element here allows the user to more intuitively and conveniently observe the rotation of the impeller through the visualization element, and then know the cooling operation of the hair removal device based on the rotation speed of the impeller. The handpiece includes a handpiece housing, a light-emitting element inside the handpiece, and a light outlet on the handpiece housing. The direction of the light-emitting element toward the light outlet is defined as the light emission direction. A flow observation device is located at the handpiece, and the visual element is at least partially exposed on the side of the handpiece housing facing away from the light emission direction. Alternatively, the main body includes a base housing, and the flow observation device is located at the main body, with the visual element at least partially exposed on one side of the base housing. Alternatively, the liquid flow pipe is fitted with an outer tube, and the flow observation device is located at the liquid flow pipe between the main body and the handpiece, with the visual element at least partially exposed on one side of the outer tube. Alternatively, the handpiece includes a handpiece housing, and the visual element is at least partially exposed on the periphery of the handpiece housing, which also serves to observe the impeller rotation and thus determine the liquid cooling operation.

[0028] 12. In one embodiment of this utility model, the handpiece includes a thermally conductive insulating component, a light-emitting component, and a light-transmitting component arranged sequentially. The thermally conductive insulating component has a liquid-passing cavity. At least one side of the light-transmitting component is provided with a cooling plate. The side of the cooling plate away from the light-transmitting component is provided with a liquid-cooling plate. A flow channel is formed in the liquid-cooling plate. The liquid-passing pipe includes an inlet pipe and an outlet pipe. The heat dissipation circulation device, the inlet pipe, the flow channel, the liquid-passing cavity, and the outlet pipe are connected end to end in sequence. Compared with the scheme where the liquid first passes through the liquid-passing cavity and then through the flow channel, the liquid first passes through the flow channel to dissipate heat on the light-transmitting component, and then passes through the liquid-passing cavity to dissipate heat on the light-emitting component. The liquid cooling the liquid-cooling plate has a lower initial cooling temperature, which can remove more heat and improve the heat dissipation efficiency for the light-transmitting component. The improved heat dissipation efficiency allows the hair removal device to work continuously without stopping to dissipate heat, thus improving the hair removal efficiency. It should be noted that the light-emitting component has a high instantaneous temperature when it is working. If the liquid flows through the liquid cavity first to cool the light-emitting component, the temperature of the liquid flowing through the flow channel later may be higher than the temperature of the flow channel, which may not be able to dissipate heat on the light-transmitting component. Therefore, cooling the light-transmitting component before cooling the light-emitting component ensures that the liquid temperature remains lower than the temperature of the liquid cavity as it flows through it. This effectively removes heat from the liquid cavity, allowing for stable and balanced heat dissipation for both the light-transmitting and light-emitting components. Cooling the light-emitting component after the light-transmitting component not only cools it but also avoids the problem of the light-emitting component being too cold after cooling, which could result in insufficient electron emission capability of the electrodes and increase the difficulty of triggering light emission. This effectively improves the stability of the light-emitting component's operation.

[0029] 13. In one embodiment of this utility model, the main body further includes a housing, and an isolation component is provided inside the main body. The housing and the isolation component enclose an isolation space, within which the liquid pump is disposed. Because the housing and the isolation component enclose the isolation space, the isolation space separates the liquid pump from other electrical components inside the main body, achieving water and electricity separation and improving safety. Even if the liquid pump leaks, the isolation space can still provide a sealing effect, protecting the user and the hair removal device.

[0030] 14. In one embodiment of this utility model, the liquid passage includes an inlet pipe and an outlet pipe. The flow rates of both the inlet and outlet pipes are between 0.2L / min and 1.5L / min, which matches the heat dissipation capacity of the hair removal device. This ensures that the heat is effectively dissipated, thereby guaranteeing the hair removal effect, safety, and user comfort of the device. Attached Figure Description

[0031] 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.

[0032] Figure 1 This is a three-dimensional structural diagram of the hair removal device provided in the first embodiment of this utility model.

[0033] Figure 2 This is an exploded structural diagram of the hair removal device provided in the first embodiment of this utility model.

[0034] Figure 3 This is a schematic cross-sectional view of the hair removal device provided in the first embodiment of this utility model. Figure 1 .

[0035] Figure 4 This is a schematic cross-sectional view of the hair removal device provided in the first embodiment of this utility model. Figure 2 .

[0036] Figure 5 This is a schematic diagram of the water circuit structure of the hair removal device provided in the first embodiment of this utility model.

[0037] Figure 6 yes Figure 3 Enlarged view of the structure of part A in the middle.

[0038] Figure 7 yes Figure 4 Enlarged view of the structure of part B in the middle section.

[0039] Figure 8 This is a schematic diagram of the water circuit structure of the hair removal device provided in the second embodiment of this utility model.

[0040] Figure 9 This is a partial cross-sectional structural diagram of the hair removal device provided in the third embodiment of this utility model.

[0041] Figure 10 This is a three-dimensional structural diagram of the hair removal device provided in the fourth embodiment of this utility model.

[0042] Figure 11 This is a partial cross-sectional structural diagram of the hair removal device provided in the fifth embodiment of this utility model.

[0043] Figure 12 This is a partial cross-sectional structural diagram of the hair removal device provided in the sixth embodiment of this utility model.

[0044] Figure 13 This is a cross-sectional structural diagram of the hair removal device provided in the seventh embodiment of this utility model.

[0045] Explanation of reference numerals in the attached diagram: 1. Hair removal device; 1a. Hair removal device; 1b. Hair removal device; 1c. Hair removal device; 1d. Hair removal device; 1e. Hair removal device; 1f. Hair removal device; 10. Main body; 11. Upper part; 12. Lower part; 13. Heat dissipation and circulation device; 14. First circuit board; 15. Inclined surface; 16. Second circuit board; 17. Housing; 18. Isolator; 20. Hand tool; 21. Hand tool housing; 22. Thermally conductive and insulating component; 23. Light-emitting component; 24. Light-transmitting component; 25. Cooling chip; 26. Liquid cooling plate; 30. Liquid passage pipe; 31. Liquid inlet pipe; 32. Liquid outlet pipe; 33. Outer pipe; 40. Flow observation device; 41. Observation chamber; 42. Impeller; 43. Visual component; 111. Mounting position; 112. Capacitor assembly; 113. First hole; 121. Heat sink bracket; 122. Planar support; 130. Heat sink assembly; 131. Water drain; 132. Liquid pump; 133. Fan; 141. Opening; 151. Interaction section; 181. Isolation space; 211. Light outlet; 221. Liquid passage chamber; 261. Flow channel; 1211, Cavity; 1212, Inclined section; 1311, Fin assembly; 1312, Cooling pipe; 1313, First collector cavity; 1314, Second collector cavity. Detailed Implementation

[0046] 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.

[0047] 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.

[0048] 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.

[0049] 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.

[0050] 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.

[0051] Please combine Figures 1 to 4 The first embodiment of this utility model provides a hair removal device 1, which includes a main body 10, a handpiece 20 and a liquid pipe 30. The main body 10 includes an upper part 11 and a lower part 12. The upper part 11 is provided with a mounting position 111 and the handpiece 20 is provided with the mounting position 111. A heat dissipation circulation device 13 is provided inside the main body 10. The liquid pipe 30 connects the heat dissipation circulation device 13 and the handpiece 20. The heat dissipation circulation device 13 includes a heat dissipation component 130 and a liquid pump 132 that are connected to each other. The heat dissipation component 130 is provided with the lower part 12 and the liquid pump 132 is provided with the upper part 11.

[0052] Understandably, the liquid pipe 30 connects the heat dissipation circulation device 13 and the handpiece 20, forming a complete cooling and heat dissipation closed loop between the heat dissipation circulation device 13, the liquid pipe 30, and the handpiece 20. After being cooled by the heat dissipation circulation device 13, the liquid flows into the handpiece 20 through the liquid pipe 30, carrying away the heat from the handpiece 20 during the flow, and then flows back to the heat dissipation circulation device 13 through the liquid pipe 30, repeating the cycle. Since the upper part 11 is provided with a mounting position 111, placing the handpiece 20 in the mounting position 111 is more ergonomic, making it easier for users to pick up and place. The heat dissipation component 130 is often larger in volume than the liquid pump 132, and the volume of liquid contained in the heat dissipation component 130 is also relatively larger. Therefore, the heat dissipation component 130 is heavier than the liquid pump 132. By placing the heat dissipation component 130 in the lower part 12 and the liquid pump 132 in the upper part 11, a vertical functional partition is formed, resulting in a lower center of gravity for the hair removal device 1, making it less prone to tipping over and improving the stability of the hair removal device 1. This design avoids the problem of excessively wide and large body of the hair removal device 1 caused by the traditional horizontal side-by-side layout. It compresses the redundant space inside the main body 10, which significantly reduces the size of the hair removal device 1 and makes it more in line with the requirements of being thin, light and small.

[0053] Optionally, the liquid used for cooling the hair removal device 1 can be water, or a coolant with high specific heat capacity such as insulating oil, methanol, ethanol, ethylene glycol aqueous solution, oil-based coolant, or electronic fluorinated liquid.

[0054] It should be noted that, taking the contact surface of the hair removal device 1 when it is placed naturally (such as a table, ground, etc.) as the reference, the lower part 12 refers to the part of the hair removal device 1 that is relatively close to the contact surface, and the upper part 11 refers to the part of the hair removal device 1 that is relatively far away from the contact surface.

[0055] Please combine Figure 2 , Figure 4 and Figure 5 Furthermore, the liquid pipe 30 includes an inlet pipe 31 and an outlet pipe 32, and the outlet pipe 32, the heat dissipation component 130, the liquid pump 132, and the inlet pipe 31 are connected in sequence.

[0056] Understandably, the inlet pipe 31 refers to the pipe through which the liquid cooled by the heat dissipation circulation device 13 enters the handpiece 20, and the outlet pipe 32 refers to the pipe through which the liquid returns to the heat dissipation circulation device 13 after cooling the handpiece 20. When the outlet pipe 32, the heat dissipation component 130, the liquid pump 132, and the inlet pipe 31 are connected in sequence, the liquid pump 132 comes into contact with the low-temperature liquid cooled by the heat dissipation component 130, which can reduce cavitation and thermal damage, and improve the service life of the liquid pump 132. The liquid cooled by the heat dissipation component 130 is pumped into the handpiece 20 for cooling through the liquid pump 132.

[0057] Please combine Figures 2 to 4 Furthermore, the heat dissipation assembly 130 includes a water drain 131, which includes a fin assembly 1311, at least one cooling pipe 1312, a first collecting cavity 1313, and a second collecting cavity 1314. The cooling pipe 1312 passes through the fin assembly 1311. The first collecting cavity 1313 connects one end of the cooling pipe 1312 to the liquid inlet pipe 31, and the second collecting cavity 1314 connects the other end of the cooling pipe 1312 to the liquid outlet pipe 32.

[0058] Understandably, the cooling pipe 1312 is used for liquid to pass through and dissipate heat in the process, the fin assembly 1311 is used to increase the heat dissipation area of ​​the cooling pipe 1312, the first manifold 1313 is used to collect the low-temperature liquid after the water drain 131 has cooled, and the second manifold 1314 is used to collect the high-temperature liquid after the handpiece 20 has cooled, so as to serve as a buffer space to balance the local pressure at the inlet and outlet of the cooling pipe 1312. The first manifold 1313 and the second manifold 1314 can provide a larger liquid storage space to increase the heat capacity. When the hair removal device 1 generates a large amount of heat through continuous pulse operation, the larger heat capacity can fully absorb this heat and delay the sudden rise in liquid temperature.

[0059] Please continue to combine Figures 2 to 4Furthermore, a heat dissipation bracket 121 is provided in the lower part 12, and the heat dissipation bracket 121 has a cavity 1211. The heat dissipation assembly 130 also includes a fan 133. The fan 133 and the water drain 131 are arranged sequentially in the cavity 1211 in a direction away from the hand tool 20. The water drain 131 is located at the air outlet or air inlet of the fan 133.

[0060] Understandably, the heat dissipation bracket 121 has a cavity 1211 to provide housing space and support for the fan 133 and the water duct 131. The water duct 131 is located at the air outlet or air inlet of the fan 133, which can accelerate airflow to dissipate heat from the water duct 131 and improve the heat dissipation efficiency of the water duct 131. The liquid cooled by the water duct 131 has a lower temperature, which can also improve the cooling effect of the liquid on the handpiece 20.

[0061] Alternatively, fan 133 can be an intake fan or an exhaust fan.

[0062] Please continue to combine Figures 2 to 4 Furthermore, a first circuit board 14 is provided on the side of the heat dissipation bracket 121 near the handpiece 20. The first circuit board 14 has an opening 141 corresponding to the fan 133. The first circuit board 14 is electrically connected to the heat dissipation circulation device 13 and the handpiece 20.

[0063] Understandably, a first circuit board 14 is provided on the side of the heat dissipation bracket 121 near the handpiece 20. The placement of the first circuit board 14 here makes the structure of the hair removal device 1 more compact. The first circuit board 14 has an opening 141 corresponding to the fan 133, so that under the action of the fan 133, airflow passes through the opening 141 and through the first circuit board 14, reducing airflow resistance. At the same time, the air circulation at the first circuit board 14 is accelerated, which can also dissipate heat from the first circuit board 14. The first circuit board 14 is electrically connected to the heat dissipation circulation device 13 and the handpiece 20, and can be used for the transmission and control of power and control signals of the heat dissipation circulation device 13 and the handpiece 20.

[0064] Please combine Figure 2 and Figure 4 Furthermore, the hair removal device 1 also includes a capacitor assembly 112, which is disposed in the upper part 11. The upper part 11 has a first hole 113 forming a mounting position 111. The handpiece 20 is disposed at the first hole 113. The capacitor assembly 112 and the liquid pump 132 are respectively disposed on opposite sides of the handpiece 20.

[0065] Understandably, the capacitor assembly 112 stores electrical energy and discharges instantaneously when energy emission is triggered, providing peak power to the laser or pulsed light element of the hair removal device 1. Since the upper part 11 has a first hole 113, the mounting position 111 is located on the inner wall of the first hole 113, and the handpiece 20 is located at the mounting position 111. The first hole 113 provides space for the handpiece 20 and separates the upper part 11. The capacitor assembly 112 and the liquid pump 132 are respectively located on opposite sides of the handpiece 20, making full use of the space on both sides separated by the first hole 113, resulting in a more compact structure within the main body 10.

[0066] Optionally, the first hole 113 can be a blind hole with one end open and the other end closed; or it can be a through hole with both ends open.

[0067] Please see Figure 2 Furthermore, the liquid pump 132 is one of the following: a gear pump; or a magnetic pump; or a centrifugal pump; or a peristaltic pump; or a diaphragm pump; or a plunger pump.

[0068] Understandably, since the heat dissipation component 130 often has many pipes leading to high resistance, gear pumps, with their advantages of high head and strong self-priming, are suitable for the low flow rate and high pressure characteristics of the liquid-cooled hair removal device 1. Magnetic pumps, centrifugal pumps, peristaltic pumps, diaphragm pumps, or plunger pumps can also provide power for liquid circulation.

[0069] Please combine Figures 1 to 2 Furthermore, both the upper part 11 and the lower part 12 are arc-shaped, and the lower part 12 protrudes in a direction away from the upper part 11 to form a planar support part 122. The average radius of curvature of the upper part 11 is smaller than the average radius of curvature of the lower part 12.

[0070] Understandably, the lower part 12 protrudes in a direction away from the upper part 11 to form a planar support part 122, allowing the hair removal device 1 to be placed stably. It should be noted that the average radius of curvature is a geometric quantity describing the curvature of an ellipsoid, that is, the arithmetic mean of the radii of curvature of the normal sections of all directions at a point on the ellipsoid. Both the upper part 11 and the lower part 12 are arc-shaped, and the average radius of curvature of the upper part 11 is smaller than that of the lower part 12, thus forming an oval structure that is smaller at the top and larger at the bottom. The upper part 11 is smaller in volume, which facilitates the placement of relatively small components such as the liquid pump 132 and the capacitor assembly 112, while the lower part 12 is larger in volume, which facilitates the placement of the relatively large heat dissipation assembly 130. This fully utilizes the geometric features of the upper part 11 and the lower part 12, avoids wasting irregular space, makes the structure more compact, reduces volume redundancy, and lowers the center of gravity, thereby improving the miniaturization and stability of the overall structure of the hair removal device 1.

[0071] Please combine Figures 2 to 3Furthermore, the thickness of the main body 10 increases along the height direction from the upper part 11 to the lower part 12 and forms an inclined surface 15. The heat dissipation bracket 121 is provided with a corresponding inclined part 1212 on the side near the inclined surface 15. The hair removal device 1 also includes a second circuit board 16, which is disposed on the inclined part 1212. The second circuit board 16 is electrically connected to the hand tool 20, the heat dissipation circulation device 13 and the first circuit board 14. The inclined surface 15 is provided with an interaction part 151 corresponding to the second circuit board 16.

[0072] Understandably, the thickness of the main body 10 increases along the height direction from the upper part 11 to the lower part 12, making the upper part 11 thinner and the lower part 12 thicker. This results in a lower center of gravity for the hair removal device 1, making it less prone to tipping over. At the same time, the upper part 11 has a relatively smaller volume, while the lower part 12 has a relatively larger volume. The upper part 11 is convenient for accommodating relatively small components such as the liquid pump 132 and the capacitor assembly 112, while the heat dissipation assembly 130 has a relatively large volume. The greater thickness of the lower part 12 provides sufficient space to accommodate the heat dissipation assembly 130, thus providing different accommodating spaces for components with different weight and volume characteristics and improving the compactness of the main body 10 structure. The thickness of the main body 10 increases along the height direction from the upper part 11 to the lower part 12 to form a slope 15. The inclined part 1212 of the heat dissipation bracket 121 corresponds to the slope 15. Since the second circuit board 16 is set on the inclined part 1212, the slope 15 is provided with an interactive part 151 corresponding to the second circuit board 16. The interactive part 151 can realize the conversion of the user's operation action into the electrical signal of the second circuit board 16. The tilt angle of the interactive part 151 on the slope 15 helps to be displayed in the direction of the user's line of sight, avoiding vertical or reflection problems, and making it convenient for the user to observe or perform interactive operations.

[0073] Please combine Figure 3 and Figure 6 Furthermore, the hair removal device 1 also includes a flow observation device 40, which defines a liquid passage formed by a heat dissipation circulation device 13, a liquid pipe 30, and a hand tool 20 connected end to end in sequence. The flow observation device 40 is disposed on the liquid passage, and an observation chamber 41 is opened inside the flow observation device 40. The flow observation device 40 also includes an impeller 42 and a visualization element 43. The impeller 42 is disposed inside the observation chamber 41 and is rotatably connected to the cavity wall of the observation chamber 41. The visualization element 43 is disposed on at least one side wall of the flow observation device 40 and separates the outside world from the observation chamber 41.

[0074] Understandably, since the flow observation device 40 is installed on the liquid passage, and the observation chamber 41 inside the flow observation device 40 is equipped with an impeller 42, when the liquid circulates and cools along the liquid passage, the impeller 42 rotates due to the impact of the liquid flow. The visualization component 43 is installed on at least one side wall of the flow observation device 40. The visualization component 43 serves to isolate and facilitate the observation of the impeller 42, separating the outside world from the observation chamber 41 to prevent liquid leakage. At the same time, the visualization component 43 allows the user to observe the state of the impeller 42 inside the observation chamber 41 from the outside. The impeller 42 transforms the implicit operating state of the liquid cooling heat dissipation of the hair removal device 1 into the intuitive and perceptible physical phenomenon of the impeller 42 rotating. This not only meets the requirements for the reliability of the operation of the hair removal device 1, allowing the user to know the cooling operation of the hair removal device 1 based on the rotation speed of the impeller 42, but also allows the user to directly obtain fault information when the impeller 42 rotates abnormally; it also aligns with the pursuit of technological sophistication and interactivity by the hair removal device 1 as a consumer product.

[0075] Please continue to combine Figure 3 and Figure 6 Furthermore, the handpiece 20 includes a handpiece housing 21, a light-emitting element 23 is provided inside the handpiece 20, and a light outlet 211 is provided in the handpiece housing 21. The direction of the light-emitting element 23 toward the light outlet 211 is defined as the light emission direction. The flow observation device 40 is provided at the handpiece 20, and the visualization element 43 is at least partially exposed on the side of the handpiece housing 21 located in the light emission direction.

[0076] Understandably, the flow observation device 40 is located at the handpiece 20, and the visualization element 43 is at least partially exposed on the side of the handpiece housing 21 facing the light emission direction, which is more in line with ergonomics and user operating habits. When the user picks up the handpiece 20 to perform hair removal, it is easier to observe the side of the handpiece housing 21 facing the light emission direction. Placing the visualization element 43 here allows the user to observe the rotation of the impeller 42 more intuitively and conveniently through the visualization element 43, and then know the cooling operation of the hair removal device 1 based on the rotation speed of the impeller 42.

[0077] Please combine Figure 3 , Figure 4 and Figure 7 Furthermore, the handpiece 20 includes a thermally conductive insulating component 22, a light-emitting component 23, and a light-transmitting component 24 arranged sequentially. The thermally conductive insulating component 22 has a liquid-passing cavity 221. At least one side of the light-transmitting component 24 is provided with a cooling chip 25. The side of the cooling chip 25 away from the light-transmitting component 24 is provided with a liquid-cooling plate 26. A flow channel 261 is provided in the liquid-cooling plate 26. The liquid-passing pipe 30 includes an inlet pipe 31 and an outlet pipe 32. The heat dissipation circulation device 13, the inlet pipe 31, the flow channel 261, the liquid-passing cavity 221, and the outlet pipe 32 are connected end to end in sequence.

[0078] Understandably, compared to the scheme where the liquid first passes through the liquid cavity 221 and then through the flow channel 261, the method of using the liquid to first dissipate heat from the light-transmitting element 24 through the flow channel 261 and then from the liquid cavity 221 to dissipate heat from the light-emitting element 23 results in a lower initial cooling temperature for the liquid cooling plate 26. This allows the liquid to carry away more heat, improving the heat dissipation efficiency for the light-transmitting element 24. The improved heat dissipation efficiency allows the hair removal device 1 to operate continuously without interrupting heat dissipation, thus improving hair removal efficiency. It should be noted that the light-emitting element 23 has a high instantaneous temperature during operation. If the liquid flows through the liquid cavity 221 first to cool the light-emitting element 23, the temperature of the liquid flowing through the flow channel 261 may be higher than the temperature of the flow channel 261 when it flows through it, thus failing to dissipate heat from the light-transmitting element 24. Therefore, cooling the light-transmitting element 24 before cooling the light-emitting element 23 ensures that the liquid temperature remains lower than the temperature of the liquid cavity 221 when the liquid flows through it. This effectively removes heat from the liquid cavity 221, allowing for stable and balanced heat dissipation for both the light-transmitting element 24 and the light-emitting element 23. Cooling the light-emitting element 23 after the light-transmitting element 24 not only cools the light-emitting element 23 but also avoids the problem of the light-emitting element 23 becoming too cold after cooling, resulting in insufficient electron emission capability of the electrodes and increasing the difficulty of triggering light emission. This effectively improves the stability of the light-emitting element 23's operation.

[0079] Please combine Figure 2 and Figure 3 Furthermore, the liquid transfer pipe 30 includes an inlet pipe 31 and an outlet pipe 32, the flow rates of both the inlet pipe 31 and the outlet pipe 32 being between 0.2 L / min and 1.5 L / min.

[0080] Understandably, the flow rates of both the inlet pipe 31 and the outlet pipe 32 are between 0.2L / min and 1.5L / min, which matches the heat dissipation capacity of the hair removal device 1, effectively removing heat and ensuring the hair removal effect, safety, and user comfort of the hair removal device 1.

[0081] Please combine Figure 2 , Figure 4 and Figure 8 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 liquid outlet pipe 32, the liquid pump 132, the heat dissipation component 130, and the liquid inlet pipe 31 are connected in sequence.

[0082] Understandably, when the liquid outlet pipe 32, liquid pump 132, heat dissipation component 130, and liquid inlet pipe 31 are connected in sequence, and the output end of the liquid pump 132 is connected to the input end of the heat dissipation component 130, the liquid pump 132 can more stably push the liquid through the high-resistance heat dissipation component 130, especially against the resistance brought by the complex and numerous heat dissipation pipes of the heat dissipation component 130, thereby improving the circulation efficiency.

[0083] Please see Figure 9 The third embodiment of this utility model provides a hair removal device 1b. The hair removal device 1b differs from the hair removal device 1 of the first embodiment of this utility model in that the handpiece 20 includes a handpiece shell 21, a light-emitting element 23 is provided inside the handpiece 20, the handpiece shell 21 has a light outlet 211, the direction of the light-emitting element 23 toward the light outlet 211 is defined as the light emission direction, the flow rate observation device 40 is provided at the handpiece 20, and the visualization element 43 is at least partially exposed on the side of the handpiece shell 21 that is away from the light emission direction.

[0084] Understandably, the technical solution of the third embodiment of this utility model can also achieve the effect of observing the rotation of the impeller 42 and thus knowing the liquid cooling operation. When the impeller 42 rotates abnormally, the fault information can be directly obtained, which more intuitively improves interactivity.

[0085] Please see Figure 10 The fourth embodiment of this utility model provides a hair removal device 1c. The hair removal device 1c differs from the hair removal device 1 of the first embodiment of this utility model in that the main body 10 includes a housing 17, a flow observation device 40 is disposed at the main body 10, and a visualization element 43 is at least partially exposed on one side of the housing 17.

[0086] Understandably, the technical solution of the fourth embodiment of this utility model can also achieve the effect of observing the rotation of the impeller 42 and thus knowing the liquid cooling operation. When the impeller 42 rotates abnormally, the fault information can be directly obtained, which more intuitively improves interactivity.

[0087] Please see Figure 11 The fifth embodiment of this utility model provides a hair removal device 1d. The hair removal device 1d differs from the hair removal device 1 of the first embodiment of this utility model in that the liquid passage tube 30 is fitted with an outer tube 33, the flow observation device 40 is set at the liquid passage tube 30 between the main body 10 and the hand tool 20, and the visualization element 43 is at least partially exposed on one side of the outer tube 33.

[0088] Understandably, the technical solution of the fifth embodiment of this utility model can also achieve the effect of observing the rotation of the impeller 42 and thus knowing the liquid cooling operation. When the impeller 42 rotates abnormally, the fault information can be directly obtained, which more intuitively improves interactivity.

[0089] Please see Figure 12 The sixth embodiment of this utility model provides a hair removal device 1e. The hair removal device 1e differs from the hair removal device 1 of the first embodiment of this utility model in that the hand tool 20 includes a hand tool shell 21, and the visualization element 43 is at least partially exposed on the periphery of the hand tool shell 21.

[0090] Understandably, the technical solution of the sixth embodiment of this utility model can also achieve the effect of observing the rotation of the impeller 42 and thus knowing the liquid cooling operation. When the impeller 42 rotates abnormally, the fault information can be directly obtained, which more intuitively improves interactivity.

[0091] Please see Figure 13 The seventh embodiment of this utility model provides a hair removal device 1f. The hair removal device 1f differs from the hair removal device 1 of the first embodiment of this utility model in that the main body 10 also includes a seat shell 17, and an isolation member 18 is provided inside the main body 10. The seat shell 17 and the isolation member 18 enclose an isolation space 181, and the liquid pump 132 is provided inside the isolation space 181.

[0092] Understandably, since the housing 17 and the isolator 18 enclose and form an isolation space 181, the isolation space 181 separates the liquid pump 132 from other electrical components inside the main body 10, achieving water and electricity separation and improving safety. Even if the liquid pump 132 leaks, the isolation space 181 can still provide an isolation and sealing effect, protecting the safety of the user and the hair removal device 1.

[0093] 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, a handpiece, and a liquid passage pipe. The main body includes an upper part and a lower part, with a mounting position on the upper part. The handpiece is mounted on the mounting position. A heat dissipation and circulation device is installed inside the main body. The liquid passage pipe connects the heat dissipation and circulation device and the handpiece. The heat dissipation and circulation device includes a heat dissipation component and a liquid pump connected in series. The heat dissipation component is located on the lower part, and the liquid pump is located on the upper part. The liquid passage pipe connects the heat dissipation and circulation device and the handpiece, forming a complete cooling and heat dissipation closed loop between the heat dissipation and circulation device, the liquid passage pipe, and the handpiece. After being cooled by the heat dissipation and circulation device, the liquid flows into the handpiece through the liquid passage pipe, carrying away the heat from the handpiece during the flow. The liquid then flows back to the heat dissipation and circulation device through the liquid passage pipe, repeating the cycle. Because the upper part has a mounting position, and the handpiece is positioned there, it is more ergonomically designed, making it easier for the user to pick up and place it. Compared to the liquid pump, the heat dissipation component is often larger and holds a greater volume of liquid, resulting in a heavier device. By placing the heat dissipation component in the lower part and the liquid pump in the upper part, a vertical functional partition is created. This lowers the center of gravity of the hair removal device, making it less prone to tipping over and improving its stability. This design avoids the problems of excessive width and size associated with traditional horizontal side-by-side layouts. By reducing redundant space inside the main body, the overall size of the hair removal device is significantly reduced, better meeting the demands for a thinner and smaller design.

[0094] 2. In one embodiment of this utility model, the liquid-passing pipe includes an inlet pipe and an outlet pipe, with the outlet pipe, heat dissipation component, liquid pump, and inlet pipe connected in sequence; or, the outlet pipe, liquid pump, heat dissipation component, and inlet pipe are connected in sequence. The inlet pipe refers to the pipe through which the liquid cooled by the heat dissipation circulation device enters the handpiece, and the outlet pipe refers to the pipe through which the liquid returns to the heat dissipation circulation device after cooling the handpiece. When the outlet pipe, heat dissipation component, liquid pump, and inlet pipe are connected in sequence, the liquid pump comes into contact with the low-temperature liquid cooled by the heat dissipation component, which can reduce cavitation and thermal damage and improve the service life of the liquid pump. When the outlet pipe, liquid pump, heat dissipation component, and inlet pipe are connected in sequence, the output end of the liquid pump is connected to the input end of the heat dissipation component, and the liquid pump can more stably push the liquid through the high-resistance heat dissipation component, especially against the resistance brought by the complex and numerous heat dissipation pipes of the heat dissipation component, thus improving the circulation efficiency.

[0095] 3. In one embodiment of this utility model, the heat dissipation component includes a water drain, which comprises a fin assembly, at least one cooling pipe, a first collecting cavity, and a second collecting cavity. The cooling pipe passes through the fin assembly. The first collecting cavity connects one end of the cooling pipe to the inlet pipe, and the second collecting cavity connects the other end of the cooling pipe to the outlet pipe. The cooling pipe is used for liquid to pass through and dissipate heat during the process. The fin assembly is used to increase the heat dissipation area of ​​the cooling pipe. The first collecting cavity is used to collect the low-temperature liquid after cooling by the water drain, and the second collecting cavity is used to collect the high-temperature liquid after cooling the handpiece, so as to serve as a buffer space to balance the local pressure at the inlet and outlet of the cooling pipe. The first and second collecting cavities can provide a larger liquid storage space to increase the heat capacity. When the hair removal device generates a large amount of heat through continuous pulse operation, the larger heat capacity can fully absorb this heat and delay the sudden rise in liquid temperature.

[0096] 4. In one embodiment of this utility model, a heat dissipation bracket is provided in the lower part. The heat dissipation bracket has a cavity. The heat dissipation component also includes a fan. The fan and the water duct are arranged sequentially in the cavity in a direction away from the hand tool. The water duct is located at the air outlet or air inlet of the fan. The cavity in the heat dissipation bracket provides space and support for the fan and the water duct. The water duct being located at the air outlet or air inlet of the fan can accelerate airflow to dissipate heat from the water duct, improving the heat dissipation efficiency of the water duct. The liquid cooled by the water duct has a lower temperature, which can also improve the cooling effect of the liquid on the hand tool.

[0097] 5. In one embodiment of this utility model, a first circuit board is provided on the side of the heat dissipation bracket near the handpiece. The placement of the first circuit board here makes the structure of the hair removal device more compact. The first circuit board has an opening corresponding to the fan, so that under the action of the fan, airflow passes through the opening and through the first circuit board, reducing airflow resistance. At the same time, the air circulation at the first circuit board is accelerated, which can also dissipate heat from the first circuit board. The first circuit board is electrically connected to the heat dissipation circulation device and the handpiece, and can be used for the transmission and control of power and control signals of the heat dissipation circulation device and the handpiece.

[0098] 6. In one embodiment of this utility model, the hair removal device further includes a capacitor assembly. The capacitor assembly is disposed in the upper part, and a first hole is opened in the upper part. The mounting position is disposed on the wall of the first hole. The capacitor assembly and the liquid pump are respectively disposed on opposite sides of the handpiece. The capacitor assembly stores electrical energy and discharges instantaneously when energy emission is triggered, providing peak power for the laser or pulsed light element of the hair removal device. Because the upper part has a first hole, the mounting position is disposed on the inner wall of the first hole, the handpiece is disposed at the mounting position, the first hole provides a space for the handpiece, the first hole separates the upper part, and the capacitor assembly and the liquid pump are respectively disposed on opposite sides of the handpiece, making full use of the space on both sides separated by the first hole, resulting in a more compact structure inside the main body.

[0099] 7. In one embodiment of this utility model, the liquid pump is a gear pump; or a magnetic pump; or a centrifugal pump; or a peristaltic pump; or a diaphragm pump; or a plunger pump. Since heat dissipation components often have numerous pipes leading to high resistance, gear pumps have the advantages of high head and strong self-priming, making them suitable for the low flow rate and high pressure characteristics of liquid cooling in hair removal devices. Magnetic pumps, centrifugal pumps, peristaltic pumps, diaphragm pumps, or plunger pumps can also provide power for liquid circulation.

[0100] 8. In one embodiment of this utility model, both the upper and lower parts are arc-shaped. The lower part protrudes in a direction away from the upper part to form a planar support portion. The average radius of curvature of the upper part is smaller than that of the lower part. The lower part protrudes in a direction away from the upper part to form a planar support portion, allowing the hair removal device to be placed stably. Both the upper and lower parts are arc-shaped, with the average radius of curvature of the upper part being smaller than that of the lower part, forming an oval structure that is smaller at the top and larger at the bottom. The smaller volume of the upper part facilitates the placement of relatively small components such as the liquid pump and capacitor assembly, while the larger volume of the lower part facilitates the placement of relatively large heat dissipation components. This fully utilizes the geometric features of the upper and lower parts, avoids wasting irregularly shaped space, makes the structure more compact, reduces volume redundancy, and lowers the center of gravity, improving the miniaturization and stability of the overall structure of the hair removal device.

[0101] 9. In one embodiment of this utility model, the thickness of the main body increases along the height direction from top to bottom, forming an inclined surface. A heat dissipation bracket is provided with a corresponding inclined portion near the inclined surface. The hair removal device also includes a second circuit board, which is disposed on the inclined portion. The second circuit board is electrically connected to the handpiece, the heat dissipation circulation device, and the first circuit board. An interactive portion corresponding to the second circuit board is provided on the inclined surface. The thickness of the main body increases along the height direction from top to bottom, resulting in a smaller upper thickness and a larger lower thickness. This lowers the overall center of gravity of the hair removal device, making it less prone to tipping over. Simultaneously, the upper part has a relatively smaller volume, while the lower part has a relatively larger volume. The upper part can easily accommodate relatively small components such as the liquid pump and capacitor assembly, while the heat dissipation assembly is relatively large. The larger lower thickness provides sufficient space to accommodate the heat dissipation assembly, thus providing different accommodating spaces for components with different weights and sizes, improving the compactness of the main body structure. The thickness of the main body increases along the height direction from the top to the bottom to form a slope. The inclined part of the heat dissipation bracket corresponds to this slope. Since the second circuit board is set on the inclined part, the slope is provided with an interactive part corresponding to the second circuit board. The user's operation action can be converted into electrical signals of the second circuit board through the interactive part. The tilt angle of the interactive part on the slope helps to be displayed in the direction of the user's line of sight, avoiding vertical or reflection problems, and making it convenient for the user to observe or perform interactive operations.

[0102] 10. In one embodiment of the present invention, the hair removal device further includes a flow observation device, which defines a liquid passage formed by a heat dissipation circulation device, a liquid pipe, and a hand tool connected end to end in sequence. The flow observation device is disposed on the liquid passage and has an observation cavity. The flow observation device also includes an impeller and a visualization element. The impeller is disposed in the observation cavity and is rotatably connected to the cavity wall of the observation cavity. The visualization element is disposed on at least one side wall of the flow observation device and separates the outside world from the observation cavity. Because the flow observation device is located on the liquid path, and the observation chamber inside the flow observation device is equipped with an impeller, when the liquid circulates and cools along the liquid path, the impeller rotates due to the impact of the liquid flow. The visualization component is located on at least one side wall of the flow observation device. The visualization component serves to isolate and facilitate the observation of the impeller, separating the outside world from the observation chamber to prevent liquid leakage. At the same time, the visualization component allows users to observe the state of the impeller inside the observation chamber from the outside. The impeller transforms the implicit operation of the hair removal device's liquid cooling into the intuitive and perceptible physical phenomenon of impeller rotation. This not only meets the requirements for the reliability of the hair removal device's operation, allowing users to know the cooling operation of the hair removal device based on the impeller rotation speed, but also allows for direct acquisition of fault information when the impeller rotation is abnormal; it also aligns with the pursuit of technological sophistication and interactivity by the hair removal device as a consumer product.

[0103] 11. In one embodiment of this utility model, the handpiece includes a handpiece shell, a light-emitting element is disposed inside the handpiece, the handpiece shell has a light outlet, the direction of the light-emitting element toward the light outlet is defined as the light emission direction, the flow rate observation device is disposed at the handpiece, and the visualization element is at least partially exposed on the side of the handpiece shell located in the light emission direction, which is more in line with ergonomics and user operating habits. When the user picks up the handpiece to prepare for hair removal, it is easier to observe the side of the handpiece shell located in the light emission direction of the hair removal device. The placement of the visualization element here allows the user to more intuitively and conveniently observe the rotation of the impeller through the visualization element, and then know the cooling operation of the hair removal device based on the rotation speed of the impeller. The handpiece includes a handpiece housing, a light-emitting element inside the handpiece, and a light outlet on the handpiece housing. The direction of the light-emitting element toward the light outlet is defined as the light emission direction. A flow observation device is located at the handpiece, and the visual element is at least partially exposed on the side of the handpiece housing facing away from the light emission direction. Alternatively, the main body includes a base housing, and the flow observation device is located at the main body, with the visual element at least partially exposed on one side of the base housing. Alternatively, the liquid flow pipe is fitted with an outer tube, and the flow observation device is located at the liquid flow pipe between the main body and the handpiece, with the visual element at least partially exposed on one side of the outer tube. Alternatively, the handpiece includes a handpiece housing, and the visual element is at least partially exposed on the periphery of the handpiece housing, which also serves to observe the impeller rotation and thus determine the liquid cooling operation.

[0104] 12. In one embodiment of this utility model, the handpiece includes a thermally conductive insulating component, a light-emitting component, and a light-transmitting component arranged sequentially. The thermally conductive insulating component has a liquid-passing cavity. At least one side of the light-transmitting component is provided with a cooling plate. The side of the cooling plate away from the light-transmitting component is provided with a liquid-cooling plate. A flow channel is formed in the liquid-cooling plate. The liquid-passing pipe includes an inlet pipe and an outlet pipe. The heat dissipation circulation device, the inlet pipe, the flow channel, the liquid-passing cavity, and the outlet pipe are connected end to end in sequence. Compared with the scheme where the liquid first passes through the liquid-passing cavity and then through the flow channel, the liquid first passes through the flow channel to dissipate heat on the light-transmitting component, and then passes through the liquid-passing cavity to dissipate heat on the light-emitting component. The liquid cooling the liquid-cooling plate has a lower initial cooling temperature, which can remove more heat and improve the heat dissipation efficiency for the light-transmitting component. The improved heat dissipation efficiency allows the hair removal device to work continuously without stopping to dissipate heat, thus improving the hair removal efficiency. It should be noted that the light-emitting component has a high instantaneous temperature when it is working. If the liquid flows through the liquid cavity first to cool the light-emitting component, the temperature of the liquid flowing through the flow channel later may be higher than the temperature of the flow channel, which may not be able to dissipate heat on the light-transmitting component. Therefore, cooling the light-transmitting component before cooling the light-emitting component ensures that the liquid temperature remains lower than the temperature of the liquid cavity as it flows through it. This effectively removes heat from the liquid cavity, allowing for stable and balanced heat dissipation for both the light-transmitting and light-emitting components. Cooling the light-emitting component after the light-transmitting component not only cools it but also avoids the problem of the light-emitting component being too cold after cooling, which could result in insufficient electron emission capability of the electrodes and increase the difficulty of triggering light emission. This effectively improves the stability of the light-emitting component's operation.

[0105] 13. In one embodiment of this utility model, the main body further includes a housing, and an isolation component is provided inside the main body. The housing and the isolation component enclose an isolation space, within which the liquid pump is disposed. Because the housing and the isolation component enclose the isolation space, the isolation space separates the liquid pump from other electrical components inside the main body, achieving water and electricity separation and improving safety. Even if the liquid pump leaks, the isolation space can still provide a sealing effect, protecting the user and the hair removal device.

[0106] 14. In one embodiment of this utility model, the liquid passage includes an inlet pipe and an outlet pipe. The flow rates of both the inlet and outlet pipes are between 0.2L / min and 1.5L / min, which matches the heat dissipation capacity of the hair removal device. This ensures that the heat is effectively dissipated, thereby guaranteeing the hair removal effect, safety, and user comfort of the device.

[0107] 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, a handpiece, and a liquid passage. The main body includes an upper part and a lower part. The upper part is provided with a mounting position, and the handpiece is mounted in the mounting position. The main body is provided with a heat dissipation and circulation device. The liquid passage connects the heat dissipation and circulation device and the handpiece. The heat dissipation and circulation device includes a heat dissipation component and a liquid pump that are connected to each other. The heat dissipation component is located in the lower part, and the liquid pump is located in the upper part.

2. The hair removal device as described in claim 1, characterized in that: The liquid passage includes an inlet pipe and an outlet pipe, and the outlet pipe, heat dissipation component, liquid pump, and inlet pipe are connected in sequence. Alternatively, the liquid outlet pipe, liquid pump, heat dissipation assembly, and liquid inlet pipe are connected in sequence.

3. The hair removal device as described in claim 2, characterized in that: The heat dissipation assembly includes a water sump, which includes a fin assembly, at least one cooling pipe, a first collection chamber, and a second collection chamber. The cooling pipe passes through the fin assembly. The first collection chamber connects one end of the cooling pipe to the liquid inlet pipe, and the second collection chamber connects the other end of the cooling pipe to the liquid outlet pipe.

4. The hair removal device as described in claim 3, characterized in that: The lower part is provided with a heat dissipation bracket, which has a cavity. The heat dissipation component also includes a fan. The fan and the water drain are arranged sequentially in the cavity in a direction away from the handpiece. The water drain is located at the air outlet or air inlet of the fan.

5. The hair removal device as described in claim 4, characterized in that: The heat dissipation bracket has a first circuit board on the side near the handpiece. The first circuit board has an opening corresponding to the fan. The first circuit board is electrically connected to the heat dissipation circulation device and the handpiece.

6. The hair removal device as described in claim 5, characterized in that: The hair removal device also includes a capacitor assembly, which is disposed in the upper part. The upper part has a first hole, and the mounting position is disposed on the inner wall of the first hole. The capacitor assembly and the liquid pump are respectively disposed on opposite sides of the handpiece.

7. The hair removal device as described in claim 2, characterized in that: The pump is one of the following: a gear pump; a magnetic pump; a centrifugal pump; a peristaltic pump; a diaphragm pump; or a plunger pump.

8. The hair removal device as described in claim 1, characterized in that: Both the upper and lower parts are arc-shaped, and the lower part protrudes in a direction away from the upper part to form a planar support part. The average radius of curvature of the upper part is smaller than that of the lower part.

9. The hair removal device as described in claim 5, characterized in that: The thickness of the main body increases along the height direction from the upper part to the lower part and forms an inclined surface. The heat dissipation bracket is provided with a corresponding inclined part on the side near the inclined surface. The hair removal device also includes a second circuit board, which is disposed on the inclined part. The second circuit board is electrically connected to the hand tool, the heat dissipation circulation device and the first circuit board. The inclined surface is provided with an interactive part corresponding to the second circuit board.

10. The hair removal device as described in claim 1, characterized in that: The hair removal device also includes a flow observation device, defining a liquid passage formed by the heat dissipation circulation device, the liquid pipe, and the handpiece connected end to end in sequence. The flow observation device is disposed on the liquid passage and has an observation chamber inside. The flow observation device also includes an impeller and a visualization element. The impeller is disposed in the observation chamber and is rotatably connected to the cavity wall of the observation chamber. The visualization element is disposed on at least one side wall of the flow observation device and separates the outside world from the observation chamber.

11. The hair removal device as described in claim 10, characterized in that: The handpiece includes a handpiece housing, a light-emitting element is disposed inside the handpiece, the handpiece housing has a light-emitting port, the direction of the light-emitting element toward the light-emitting port is defined as the light-emitting direction, the flow observation device is disposed at the handpiece, and the visualization element is at least partially exposed on the side of the handpiece housing located in the light-emitting direction; Alternatively, the handpiece includes a handpiece housing, a light-emitting element is disposed inside the handpiece, the handpiece housing has a light-emitting port, the direction of the light-emitting element toward the light-emitting port is defined as the light-emitting direction, the flow observation device is disposed at the handpiece, and the visualization element is at least partially exposed on the side of the handpiece housing opposite to the light-emitting direction; Alternatively, the main body includes a housing, the flow observation device is disposed on the main body, and the visualization element is at least partially exposed on one side of the housing; Alternatively, the liquid passage tube is fitted with an outer tube, the flow observation device is located at the liquid passage tube between the main body and the handpiece, and the visualization element is at least partially exposed on one side of the outer tube; Alternatively, the hand tool may include a hand tool housing, with the visualization element at least partially exposed around the periphery of the hand tool housing.

12. The hair removal device as described in claim 1, characterized in that: The handpiece includes a thermally conductive insulating component, a light-emitting component, and a light-transmitting component arranged in sequence. The thermally conductive insulating component has a liquid-filled cavity. At least one side of the light-transmitting component is provided with a cooling chip. The side of the cooling chip away from the light-transmitting component is provided with a liquid-cooled plate. A flow channel is provided in the liquid-cooled plate. The liquid-filled pipe includes an inlet pipe and an outlet pipe. The heat dissipation circulation device, the inlet pipe, the flow channel, the liquid-filled cavity, and the outlet pipe are connected end to end in sequence.

13. The hair removal device as described in claim 1, characterized in that: The main body also includes a housing, and an isolation element is provided inside the main body. The housing and the isolation element enclose an isolation space, and the liquid pump is disposed within the isolation space.

14. The hair removal device as described in claim 1, characterized in that: The liquid passage includes an inlet pipe and an outlet pipe, and the flow rates of both the inlet pipe and the outlet pipe are between 0.2 L / min and 1.5 L / min.

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