Handpiece for hair removal device and hair removal device

Abstract

The present invention relates to the technical field of hair removal devices, and in particular, to a handpiece for a hair removal device and the hair removal device. The handpiece for a hair removal device provided in the present invention comprises a light source mechanism. The light source mechanism comprises a thermally conductive insulating member and a light-emitting assembly. The thermally conductive insulating member is arranged on one side of the light-emitting assembly facing away from the light-emitting direction. A liquid passage chamber is formed in the thermally conductive insulating member, and a cooling liquid flows through the liquid passage chamber to dissipate heat from the light-emitting assembly. The cooling liquid in the present invention is not in direct contact with the light-emitting assembly for cooling. The light emitted by the light-emitting assembly does not pass through the cooling liquid, and thus energy loss does not occur. This eliminates the need for increasing the light-emitting power to compensate for energy loss, such that the light-emitting requirement can be met at a lower power. The reduction in the light-emitting power leads to reduced heat generation, and the reduced heat generation enables the heat to be dissipated in time. The handpiece for a hair removal device does not need to operate intermittently to wait for heat dissipation and cooling, thereby improving the hair removal efficiency. Additionally, the reduced light-emitting power requirement enables a lower volume requirement of the handpiece for a hair removal device, such that the handpiece for a hair removal device can be miniaturized for household use.

Description

Hair removal instrument hand tool and hair removal instrument TECHNICAL FIELD

[0001] The utility model relates to hair removal instrument technical field, especially hair removal instrument hand tool and hair removal instrument. BACKGROUND

[0002] The light source of the hair removal instrument hand tool releases a large amount of heat in the working state, and the existing hair removal instrument hand tool heat dissipation modes mainly include water cooling and air cooling, the current water cooling often adopts the mode that the cooling liquid directly flows through the light source to take away the heat, however, since there is a certain distance between the light source and the light transmission piece, the light emitted by the light source needs to pass through the cooling liquid before reaching the light transmission piece, and the light emitted by the light source will be energy loss in the process of passing through the cooling liquid, which will greatly reduce the hair removal efficiency of the hair removal instrument hand tool. In order to ensure the hair removal effect, a high-power light source is needed to make up for the energy loss, and the light emitting power is increased, which leads to a large amount of heat and cannot be dissipated in time, so the hair removal instrument hand tool can only work intermittently to wait for cooling, thereby causing low hair removal efficiency, and the user needs to wait for cooling, and the user's hair removal demand cannot be met in time; the high-power energy requirement of the hair removal instrument also inevitably increases the size of the hair removal instrument hand tool, which limits the actual use scene of the hair removal instrument hand tool to large equipment in professional institutions, and it is difficult to realize miniaturization for household level.

[0003] UTILITY MODEL CONTENTS

[0004] In order to solve the above problems, the present application provides a hair removal instrument hand tool and a hair removal instrument.

[0005] In order to solve the above problems, the present application provides a hair removal instrument hand tool and a hair removal instrument.

[0006] Preferably, one side of the heat-conducting insulating piece towards the light emitting direction is provided with a light source mounting position, and the light emitting assembly is arranged in the light source mounting position.

[0007] Preferably, the light source mounting position is a light source groove, the light source groove is recessed into the liquid passing cavity, and the light emitting assembly is at least partially arranged in the light source groove; the light emitting assembly comprises a light reflecting cup and a light emitting piece, the light emitting piece is at least partially arranged in the light reflecting cup, and the light reflecting cup is at least partially arranged in the light source groove.

[0008] Preferably, the thickness between the light source groove and the liquid cavity is in the range of 0.5mm to 1mm; or 1mm to 2mm; or 2mm to 3mm; or 3mm to 4mm; or 4mm to 5mm.

[0009] Preferably, the light emitting part, the light reflecting cup and the light source groove are sequentially attached.

[0010] Preferably, the light emitting part is a pulse xenon lamp, which comprises an anode, a cathode and a trigger electrode, the anode and the cathode are arranged at both ends of the pulse xenon lamp, and the trigger electrode is arranged between the anode and the cathode; or the light emitting part is an LED and / or a laser; the trigger electrode is the light reflecting cup; a wire passing hole is formed in the heat-conducting and insulating part, which communicates the side of the heat-conducting and insulating part close to the light emitting part with the outside of the heat-conducting and insulating part; a wire connecting column is arranged on the side of the light reflecting cup facing the wire passing hole, and the wire connecting column is at least partially arranged in the wire passing hole.

[0011] Preferably, the light source mechanism further comprises a light transmitting part, a refrigeration sheet and a liquid cooling plate, the light transmitting part is arranged in the light emitting direction, at least one side of the light transmitting part is provided with the refrigeration sheet, the side of the refrigeration sheet away from the light transmitting part is provided with the liquid cooling plate, and the liquid cooling plate is provided with a flow channel.

[0012] Preferably, the number of the refrigeration sheet and the liquid cooling plate is two, the two refrigeration sheets are respectively arranged on the opposite sides of the light transmitting part, and the cooling liquid respectively flows through the corresponding flow channels of the two liquid cooling plates or sequentially flows through the corresponding flow channels of the two liquid cooling plates to cool the liquid cooling plate.

[0013] Preferably, when the cooling liquid respectively flows through the corresponding flow channels of the two liquid cooling plates, the light source mechanism further comprises a liquid inlet nozzle and a flow dividing part, the liquid inlet nozzle, the flow dividing part and the flow channel are sequentially communicated, the flow dividing part is provided with a flow dividing channel, and the two ends of the flow dividing channel are respectively communicated with the corresponding flow channels of the two liquid cooling plates.

[0014] Preferably, the light source mechanism further comprises a light transmitting part support, the light transmitting part support is sleeved on the light transmitting part, one of the sides of the light transmitting part support and the flow dividing part close to each other is provided with a limiting block, and the other is provided with a corresponding limiting hole; one of the ports defining the corresponding positions of the flow dividing channel and the flow channel is a male joint, and the other is a female joint, the male joint is connected with the female joint, a containing groove is formed on the side of the male joint, the containing groove is arranged on the outside of the male joint, and a joint sealing part is arranged in the containing groove.

[0015] Preferably, the cooling liquid flows through the flow passage and the liquid cavity in sequence to sequentially dissipate heat from the light-transmitting member and the light-emitting assembly; or, the cooling liquid flows through the flow passage and the liquid cavity respectively to dissipate heat from the light-transmitting member and the light-emitting assembly respectively; or, the flow passage comprises at least one flow sub-passage and / or the flow passage comprises at least one bending portion; the volume of the liquid cavity is greater than the volume of the flow passage.

[0016] Preferably, a sealing gasket layer is arranged between the liquid cooling plate and the heat-conducting insulating member, the sealing gasket layer is provided with a gasket through hole, and the gasket through hole communicates the flow passage and the liquid cavity; the light source mechanism further comprises a sealing sleeve, and the sealing sleeve is sleeved on the light-transmitting member.

[0017] Preferably, the sealing sleeve is provided with a sleeve eave at one end in the light-emitting direction, and the sleeve eave extends away from the light-transmitting member; the sealing sleeve is a silica gel sealing sleeve.

[0018] Preferably, the light source mechanism further comprises a light filter, and the light filter is arranged between the light-emitting assembly and the light-transmitting member; the light filter and the inner wall of the light source groove circumscribe a light source cavity, and the light source cavity does not contain cooling liquid; the light source mechanism further comprises a sealing sleeve, and the sealing sleeve is sleeved on the light-transmitting member; a gap is left between the light filter and the light-transmitting member, and one end of the sealing sleeve close to the light filter seals the gap.

[0019] Preferably, the heat-conducting insulating member comprises a heat-conducting insulating surface on at least one side of the light source groove; and the heat-conducting insulating surface is a ceramic surface.

[0020] Preferably, the heat-conducting insulating member is provided with a liquid passing hole communicating the flow passage and the liquid cavity, the light source mechanism is further provided with a liquid outlet nozzle, the liquid outlet nozzle communicates with the liquid cavity, the liquid cavity is provided with a baffle between the liquid outlet nozzle and the liquid passing hole, and a gap is left between the cavity surface of the liquid cavity close to the light source mounting position and the baffle.

[0021] Preferably, the hair removal instrument handpiece comprises a preset first gear and / or a preset second gear and / or a preset third gear, the preset first gear outputs energy in the range of 5-15 J, and the flash interval is 0.1 s-0.3 s; the preset second gear outputs energy in the range of 15-25 J, and the flash interval is 0.3 s-0.5 s; the preset third gear outputs energy in the range of 25-35 J, and the flash interval is 0.5 s-1 s.

[0022] Preferably, the heat-conducting insulating piece comprises a first sub-piece and a second sub-piece, the first sub-piece and the second sub-piece enclose the liquid passing cavity; the first sub-piece and the second sub-piece are sequentially arranged along the direction close to the light-emitting assembly, and at least the second sub-piece is a ceramic support; the ceramic support is an alumina ceramic support.

[0023] Preferably, a first sealing piece is arranged between the first sub-piece and the second sub-piece.

[0024] Preferably, the light source groove comprises a groove bottom and two groove walls, the two groove walls are arranged on both sides of the groove bottom, the light-reflecting cup comprises a cup bottom and a cup wall, the cup bottom and the cup wall are respectively correspondingly attached to the groove bottom and the groove wall, and the light-emitting piece is attached to the cup bottom.

[0025] Preferably, a radial wrapping angle of the light-emitting piece and the cup bottom is α, and 120°≤α≤180°; the groove bottom and the cup bottom are concentric circular arcs, and the concentric circular arcs take the axis of the light-emitting piece as the center.

[0026] Preferably, the light source mechanism further comprises an electrically conductive piece, the electrically conductive piece is arranged on the heat-conducting insulating piece, and the electrically conductive piece is electrically connected to the light-emitting piece; the electrically conductive piece is at least partially attached to the heat-conducting insulating piece.

[0027] Preferably, the electrically conductive piece is an electrically conductive copper sheet.

[0028] Preferably, the heat-conducting insulating piece is provided with a circuit board on the side opposite to the light-emitting direction, the circuit board is electrically connected to the light-emitting assembly; and the flow rate of the cooling liquid is 0.2-0.6 L / min.

[0029] To solve the above technical problems, another technical solution is provided as follows: a depilating instrument, the depilating instrument comprising a heat-dissipating device, a pump liquid device and the above-mentioned depilating instrument hand tool, the heat-dissipating device, the pump liquid device and the depilating instrument hand tool are sequentially connected.

[0030] Preferably, the heat-dissipating device comprises cooling liquid, the cooling liquid comprises anti-freezing liquid; and the pump liquid device comprises a gear pump.

[0031] Compared with the prior art, the depilating instrument hand tool and the depilating instrument provided by the application have the following beneficial effects:

[0032] 1. In one embodiment of the present invention, the hair removal device handpiece includes a light source mechanism, which includes a thermally conductive insulating component and a light-emitting component. The direction in which the light emitted from the hair removal device handpiece is defined as the light emission direction. The thermally conductive insulating component is disposed on the side of the light-emitting component facing away from the light emission direction. The thermally conductive insulating component has a liquid-filled cavity through which coolant flows to dissipate heat from the light-emitting component. By configuring the light source mechanism to include a thermally conductive insulating component and a light-emitting component, with the thermally conductive insulating component disposed on the side of the light-emitting component facing away from the light emission direction and a liquid-filled cavity through which coolant flows to dissipate heat from the light-emitting component, the light-emitting component and the liquid-filled cavity are separated by the cavity wall of the liquid-filled cavity. The coolant does not directly contact the light-emitting component to carry away its heat, but rather flows through the liquid cavity to carry away the heat conducted from the light-emitting component through the cavity wall of the liquid-filled cavity. Because the coolant does not directly contact the light-emitting component for cooling, the light emitted by the component does not suffer energy loss due to passing through the coolant. Therefore, the energy conversion rate of the electrical energy input to the hair removal device into the output hair removal energy is high, resulting in high energy utilization. There is no need to increase the light-emitting power of the component to compensate for energy loss, allowing the device to meet the light emission requirements with lower power. The reduced light-emitting power also reduces the heat generated by the component, enabling timely heat dissipation. This prevents the device from experiencing flickering and eliminates the need for intermittent operation to allow for cooling. The device can achieve continuous hair removal without waiting, thus improving efficiency. Furthermore, the reduced light-emitting power requirement allows for a smaller size, enabling miniaturized devices suitable for home use.

[0033] 2. In one embodiment of the present invention, a light source mounting position is provided on the side of the thermally conductive insulating member facing the light emission direction, and the light-emitting component is disposed at the light source mounting position. The light-emitting component achieves direct contact with the thermally conductive insulating member, and heat can be transferred from the light-emitting component to the thermally conductive insulating member in the form of thermal conduction, thereby improving heat dissipation efficiency.

[0034] 3. In one embodiment of the present invention, the light source groove is recessed into the liquid passage cavity, which can provide a space for the light-emitting component. The light-emitting component is at least partially disposed in the light source groove. The light source groove plays a role in accommodating, fixing and protecting the light-emitting component. Moreover, the recessed light source groove into the liquid passage cavity and the corresponding protrusion formed on the back of the light source groove in the liquid passage cavity can also increase the thermal contact area and improve the heat dissipation efficiency.

[0035] 4. In one embodiment of the present invention, the light-emitting component includes a reflector and a light-emitting element. The light-emitting element is at least partially disposed within the reflector. The reflector can refract light rays from the light-emitting element that are not emitted in the light-emitting direction, allowing them to still be emitted in the light-emitting direction. This enables the light emitted by the light-emitting element to be utilized efficiently and emitted as far as possible from the light-emitting direction, thereby improving the hair removal efficiency of the hair removal device handpiece. The positional relationship between the reflector and the light source slot establishes a heat conduction path from the reflector to the light source slot.

[0036] 5. In one embodiment of the present invention, the light source groove is used to accommodate the light-emitting element. The temperature variation range of the light-emitting element is large. The thickness range between the light source groove and the liquid passage cavity can prevent the geometry of the light source groove from deforming due to heat if the thickness is too thin, and can also avoid the thickness from reducing the speed and efficiency of heat conduction from the light source groove to the liquid passage cavity if the thickness is too thick.

[0037] 6. In one embodiment of the present invention, the light-emitting element, the reflector cup, and the light source slot are sequentially attached to each other, eliminating air gaps. Since air gaps are poor conductors of heat, the reflector cup not only concentrates the light, but also efficiently conducts the heat of the light-emitting element to the light source slot, forming a complete and efficient heat conduction path and improving heat conduction efficiency.

[0038] 7. In one embodiment of the present invention, by setting the pulsed xenon lamp to include an anode, a cathode, and a trigger electrode, the pulsed xenon lamp can adopt an external triggering method, achieving better triggering effect and longer service life. LEDs, as light-emitting components, have the advantages of long service life, large light-emitting area, and low cost; lasers can quickly act on large areas of skin, improving hair removal efficiency.

[0039] 8. In one embodiment of the present invention, a reflector cup is set as the trigger electrode. In addition to reflecting light, the reflector cup is also conductive. There is no need to use a trigger wire wrapped around the light-emitting element for external triggering. This avoids the light-emitting element and the reflector cup being separated due to the trigger wire wrapped around the light-emitting element, which would cause a decrease in thermal conductivity. This ensures that the reflector cup and the light-emitting element are in close contact, and improves the thermal conductivity between them.

[0040] 9. In one embodiment of the present invention, when the light-emitting element is a pulsed xenon lamp, the pulsed xenon lamp includes an anode, a cathode and a trigger electrode. The wire electrically connected to the outside of the thermally conductive insulating element can reach the side of the thermally conductive insulating element near the light-emitting element through the through hole. The trigger electrode is electrically connected to an external trigger signal source through the wire passing through the through hole.

[0041] 10. In one embodiment of the present invention, a terminal block is provided on the side of the reflector facing the through hole. The terminal block is at least partially inserted into the through hole, so that the external circuit can be easily electrically connected to the reflector through the terminal block. The through hole protects the terminal block and ensures the stability of the electrical connection.

[0042] 11. In one embodiment of the present invention, the light-transmitting element is positioned in the light-emitting direction to guide light, cool, and protect the skin. Through the arrangement of the light-transmitting element, the cooling element, and the liquid-cooled plate, a flow channel is formed within the liquid-cooled plate. The cooling element efficiently absorbs heat from the light-transmitting element and conducts it to the liquid-cooled plate. The coolant flows through the flow channel within the liquid-cooled plate, carrying away this heat. This heat conduction pathway arrangement has high heat dissipation efficiency and effectively prevents the temperature of the light-transmitting element from becoming too high.

[0043] 12. In one embodiment of the present invention, by setting two sets of cooling chips and liquid cooling plates, with one cooling chip and one liquid cooling plate on each opposite side of the light-transmitting element, heat dissipation can be achieved from both sides of the light-transmitting element, improving heat dissipation efficiency. The cooling method for the liquid cooling plates can be either that the two liquid cooling plates are independent, with the coolant flowing into each plate simultaneously for cooling, or that the two liquid cooling plates are interconnected, with the coolant flowing through them sequentially for heat dissipation.

[0044] 13. In one embodiment of the present invention, the flow divider is provided with a flow divider channel. The two ends of the flow divider channel are respectively connected to the flow channels corresponding to the two liquid cooling plates. The coolant enters the flow divider channel through the inlet and flows through the flow channels of the liquid cooling plates on both sides to carry away the heat of the cooling chip. The dual flow channels enable the coolant to efficiently and evenly carry away the heat transferred from the light-transmitting element to the liquid cooling plate from both sides of the light-transmitting element.

[0045] 14. In one embodiment of the present invention, the light-transmitting component bracket is sleeved on the light-transmitting component to limit and protect the light-transmitting component. Limiting blocks and limiting holes are respectively provided on the sides of the light-transmitting component bracket and the diverting component that are close to each other, so that the light-transmitting component bracket and the diverting component can be locked together, which limits the positional relationship between the two.

[0046] 15. In one embodiment of the present invention, the ports corresponding to the flow distribution channel and the flow passage are respectively used as male and female docking ends for connection. Since a receiving groove is provided on the side of the male docking end, the receiving groove is located on the outside of the male docking end, and a docking seal is provided in the receiving groove. When the male docking end and the female docking end are connected, the docking seal on the outside of the male docking end can play a sealing role to prevent coolant from leaking at the connection between the flow distribution channel and the flow passage, and ensure the integrity and sealing of the connection between the flow distribution channel and the flow passage.

[0047] 16. In one embodiment of the present invention, the coolant flows sequentially through the flow channel and the liquid-passing cavity to dissipate heat from the light-transmitting element and the light-emitting component. Since the heat from the light-transmitting element is conducted to the liquid-cooled plate by the cooling plate, and the heat from the light-emitting component is conducted to the liquid-passing cavity by the cavity wall, this heat is ultimately carried away by the coolant flowing sequentially through the flow channel and the liquid-passing cavity, thus allowing the heat from the light-transmitting element and the light-emitting component to dissipate in a timely manner. Because the light-transmitting element, when its temperature is too high, would directly trigger the hair removal device to stop for heat dissipation to prevent burns, negatively impacting the user experience, the coolant is designed to flow sequentially through the flow channel and the liquid-passing cavity, allowing the coolant to be cooled first through the flow channel and then through the liquid-passing cavity. This cooling sequence, where the coolant flows through the flow channel first and then through the liquid-passing cavity, results in a lower initial cooling temperature for the light-transmitting element, enabling it to carry away more heat from the element, improving the heat dissipation efficiency of the flow channel for cooling the light-transmitting element, and preventing the hair removal device from stopping due to excessively high temperatures in the light-transmitting element. By cooling the light-transmitting component first and then the light-emitting component, the cooling sequence of the light-emitting component, which experiences a high instantaneous temperature during operation, is prioritized. This ensures that the coolant temperature remains below the temperature of the liquid cavity as it flows through it, effectively removing heat and allowing for stable and even heat dissipation for both the light-transmitting and light-emitting components. Furthermore, cooling the light-emitting component after the light-transmitting component not only cools it but also ensures that the electrodes retain sufficient electron emission capability after the component's temperature drops, guaranteeing stable operation. With these features, the hair removal device handpiece can operate continuously, dissipating heat promptly without intermittent cooling, achieving uninterrupted high-speed hair removal. This instantly meets the user's hair removal needs and significantly improves the user experience.

[0048] 17. In one embodiment of the present invention, the coolant flows sequentially through the liquid chamber and the flow channel, so that the heat of the light-emitting component and the light-transmitting component can be carried away by the coolant sequentially through the liquid chamber and the flow channel.

[0049] 18. In one embodiment of the present invention, by setting the coolant to flow through the flow channel and the liquid cavity respectively, the heat dissipation of the light-transmitting component and the light-emitting component does not interfere with each other, and the coolant carries away the heat of the light-transmitting component and the light-emitting component respectively through the flow channel and the liquid cavity.

[0050] 19. In one embodiment of the present invention, the flow channel includes at least one flow branch channel and / or the flow channel includes at least one bend. The coolant flows in multiple paths and / or along an S-shaped, repeatedly zigzagging path inside the liquid cooling plate, thereby increasing the flow path length of the coolant in the liquid cooling plate, increasing the surface area and contact time between the coolant and the liquid cooling plate, and improving heat dissipation performance.

[0051] 20. In one embodiment of the present invention, the volume of the liquid cavity is greater than the volume of the flow channel, so that the coolant has a longer heat exchange time and a larger heat dissipation contact area when flowing through the liquid cavity, thereby improving the heat dissipation efficiency of the coolant when flowing through the liquid cavity.

[0052] 21. In one embodiment of the present invention, a sealing gasket is provided between the liquid cooling plate and the thermally conductive insulating component. The sealing gasket has a through hole, which connects to a flow channel and a liquid passage cavity. The sealing gasket, positioned between the liquid cooling plate and the thermally conductive insulating component, serves to seal and prevent coolant leakage through gaps at the contact surface between the liquid cooling plate and the thermally conductive insulating component, thereby improving the safety of the hair removal device's handpiece operation. The through hole connects the flow channel and the liquid passage cavity, allowing the coolant to flow smoothly from the flow channel to the liquid passage cavity.

[0053] 22. In one embodiment of the present invention, by placing a sealing sleeve on the light-transmitting component, the sealing sleeve can keep the light-transmitting component cold, thereby enabling the light-transmitting component to have a better cooling effect.

[0054] 23. In one embodiment of the present invention, a sleeve rim is provided at the end of the sealing sleeve facing the light-emitting direction. The sleeve rim extends away from the light-transmitting element, which can seal the gap between the light-emitting side of the light-transmitting element and the outer shell of the hair removal device handpiece, preventing gel, dust, water and other substances used during hair removal from entering the hair removal device handpiece.

[0055] 24. In one embodiment of the present invention, the silicone sealing sleeve has excellent heat resistance, elasticity and insulation. It can withstand high temperatures without deformation or damage, and can also deform to fill gaps to ensure sealing, while improving safety during use.

[0056] 25. In one embodiment of the present invention, by placing a filter between the light-emitting component and the light-transmitting component, the light emitted by the light-emitting component is filtered by the filter and then emitted through the light-transmitting component, so that the output spectrum of the light emitted from the light-transmitting component meets the hair removal requirements, and the spectrum that does not meet the requirements can be filtered out to achieve the hair removal effect.

[0057] 26. In one embodiment of the present invention, the light source cavity does not pass through the coolant, which, compared with the conventional light source water cooling structure, can avoid energy loss when the light-emitting ray of the light-emitting component passes through the coolant due to the coolant flowing through the light source cavity, and also improves the safety of preventing leakage.

[0058] 27. In one embodiment of the present invention, a sealing sleeve is provided at one end near the filter element to seal the gap between the filter element and the light-transmitting element, thereby forming a sealed space. This prevents the gas near the filter element and the light-transmitting element from liquefying and remaining in the gap between the filter element and the light-transmitting element due to condensation of the cooling liquid. This would prevent the light emitted by the light-emitting element from being lost due to energy loss when passing through the gap, thereby further improving the light output effect.

[0059] 28. In one embodiment of the present invention, by making the thermally conductive insulating component have at least one side of the light source groove including a thermally conductive insulating surface, the light source groove can efficiently transfer heat to the liquid cavity side by utilizing its good thermal conductivity, and can also play an insulating role, thereby improving the safety of the hair removal device handpiece.

[0060] 29. In one embodiment of the present invention, ceramic is a typical representative of thermally conductive and insulating materials. Because ceramic material has a low coefficient of linear expansion, the temperature of the hair removal device handpiece changes significantly between when it is in operation and when it is not in operation. The ceramic surface of the ceramic support, due to its good dimensional stability, can maintain dimensional stability even under large temperature differences, thereby ensuring the stability of the light source mechanism structure. Furthermore, the ceramic material has good insulation properties, improving the safety of using the hair removal device handpiece.

[0061] 30. In one embodiment of the present invention, since the outlet nozzle is connected to the liquid passage chamber, a baffle is provided in the liquid passage chamber between the outlet nozzle and the liquid passage hole. The baffle changes the original flow direction of the coolant from the liquid passage hole to the outlet nozzle in a direct flow. A gap is left between the cavity surface of the liquid passage chamber near the light source mounting position and the baffle, so that the coolant flows to the outlet nozzle through the gap after being obstructed by the baffle. This allows the coolant to flow as close as possible to the cavity surface of the liquid passage chamber near the light source mounting position, thereby improving heat dissipation efficiency. The positional relationship between the baffle and the gap increases the flow path length of the coolant from the liquid passage hole to the outlet nozzle, making the heat exchange process in the liquid passage chamber more complete and further improving heat dissipation efficiency.

[0062] 31. In one embodiment of the present invention, by setting a preset first level and / or a preset second level and / or a preset third level, different energy output and flash interval levels can be provided to meet the diverse hair removal needs of users. The present invention uses coolant flowing through the liquid chamber to carry away the heat conducted by the light-emitting component through the cavity wall, avoiding energy loss caused by light passing through the coolant, and has a high energy utilization rate. It is not limited by heat dissipation problems during continuous and rapid hair removal. Even when using the output energy level of 25-35J for lighting, the flash interval can be as low as 0.5s-1s, realizing continuous high-speed hair removal, improving hair removal efficiency, and greatly improving the user's hair removal experience.

[0063] 32. In one embodiment of the present invention, the liquid passage cavity is formed by the first component and the second component, which simplifies the manufacturing process of the liquid passage cavity and reduces manufacturing difficulty and cost.

[0064] 33. In one embodiment of the present invention, since the first component and the second component are arranged sequentially along the direction close to the light-emitting component, and the second component is located closer to the light-emitting component, the heat of the light-emitting component needs to be conducted to the liquid-passing cavity through the second component, and coolant passes through the liquid-passing cavity. Therefore, at least the second component needs to meet the requirements of thermal conductivity and insulation. The ceramic bracket has high thermal conductivity, which can quickly conduct and dissipate the heat of the light-emitting component, improving the heat conduction efficiency; the ceramic bracket also has electrical insulation, improving the safety of the hair removal device handpiece.

[0065] 34. In one embodiment of the present invention, alumina ceramic has a high thermal conductivity, which enables the ceramic support to effectively conduct and dissipate heat; and alumina ceramic, as an insulating material, can effectively isolate the circuit and prevent leakage.

[0066] 35. In one embodiment of the present invention, by providing a first sealing element between the first component and the second component, the gap can be filled during the assembly of the first component and the second component, thereby achieving a sealing effect and preventing coolant from leaking out of the fluid passage cavity.

[0067] 36. In one embodiment of the present invention, by setting the light-emitting element to be attached to the bottom of the cup, and the bottom of the cup to be attached to the bottom of the tank, the light-emitting element, the reflector cup, and the light source tank are in direct contact. The heat from the light-emitting element can be conducted through the bottom of the reflector cup to the bottom of the light source tank, and then to the liquid-passing cavity surface on the back of the light source tank, and finally carried away by the coolant flowing through the liquid-passing cavity. The cup wall can reflect the light emitted by the light-emitting element in the non-emitting direction, converting it into light in the emitting direction; the cup wall and the tank wall are correspondingly attached, so that the heat received by the cup wall can be conducted to the tank wall, and then to the liquid-passing cavity surface on the back of the tank wall, increasing the heat dissipation contact area and improving the heat dissipation efficiency.

[0068] 37. In one embodiment of the present invention, when the radial wrapping angle between the light-emitting element and the bottom of the cup is too small, the contact between the light-emitting element and the reflector cup is insufficient, and the contact area is restricted when heat is conducted from the light-emitting element to the reflector cup, resulting in insufficient heat dissipation performance. When the radial wrapping angle between the light-emitting element and the bottom of the cup is too large, the cup wall will block and interfere with the light emission direction of the light-emitting element, affecting the normal light emission of the light emitted by the light-emitting element and reducing the light energy utilization efficiency. By setting the radial wrapping angle to a range of no more than 180° and no less than 120°, a balance can be achieved between heat dissipation efficiency and light energy utilization efficiency, ensuring that the light-emitting element and the reflector cup have sufficient contact area for heat conduction while not blocking or interfering with the normal light emission of the light emitted by the light-emitting element.

[0069] 38. In one embodiment of the present invention, by setting the bottom of the groove and the bottom of the cup to be arc-shaped, and the center of the corresponding arc of the groove bottom and the bottom of the cup to coincide with the axis of the light-emitting element, forming a concentric arc, the shapes of the groove bottom and the bottom of the cup can be matched and fit together seamlessly. The inner surface of the bottom of the cup is completely attached to the light-emitting element. The tightly fitted contact surface eliminates air gaps. Air is a poor conductor of heat, so the heat conduction efficiency from the light-emitting element to the bottom of the cup to the bottom of the groove can be improved, thereby conducting heat evenly and efficiently.

[0070] 39. In one embodiment of the present invention, a conductive element is electrically connected to a light-emitting element, and the conductive element is disposed on a thermally conductive insulating element, thereby adding a new heat conduction path. The conductive element, in addition to its electrical conductivity, also has good thermal conductivity. The heat from the light-emitting element can be conducted to the conductive element connected to it. Since the conductive element is disposed on the thermally conductive insulating element, the heat can be further conducted to the thermally conductive insulating element, thus establishing a heat conduction path from the light-emitting element through the conductive element to the thermally conductive insulating element. The conductive element not only performs the function of conducting electricity to connect the light-emitting element, but also plays a role in heat conduction, adding a new heat conduction path. This heat conduction path makes the way the heat generated by the light-emitting element is conducted to the thermally conductive insulating element more diverse, enabling more uniform and comprehensive heat conduction. It avoids the structural defects of uneven heat dissipation at the light-emitting element due to an overly singular heat dissipation path, and can further improve the heat dissipation efficiency to a higher level.

[0071] 40. In one embodiment of the present invention, since the conductive component is at least partially attached to the thermally conductive insulating component, the contact relationship between the conductive component and the thermally conductive insulating component is ensured. Whether the conductive component is partially attached to the thermally conductive insulating component or the conductive component is fully attached to the thermally conductive insulating component, heat can be transferred from the conductive component to the thermally conductive insulating component.

[0072] 41. In one embodiment of the present invention, by setting a circuit board on the side opposite to the light emission direction of the thermally conductive insulating component, the circuit board will not affect the normal light emission of the hair removal device handpiece. The circuit board is electrically connected to the light-emitting component, so that the circuit board can control the working state of the light-emitting component.

[0073] 42. In one embodiment of the present invention, by setting the flow rate of the coolant in the range of 0.2-0.6L / min, the coolant has sufficient circulation speed, improves heat exchange efficiency, and removes the heat of the hair removal device handpiece in time.

[0074] 43. In one embodiment of the present invention, the hair removal device includes a heat dissipation device, a liquid pumping device, and the aforementioned hair removal device handpiece, which are connected in sequence. The heat dissipation device, the liquid pumping device, and the hair removal device handpiece are connected in sequence to form a circulating heat exchange path. When the hair removal device handpiece performs hair removal operations, the liquid pumping device repeatedly pumps coolant into the hair removal device handpiece for heat dissipation, and then the coolant is further cooled by the heat dissipation device for use in cooling.

[0075] 44. In one embodiment of the present invention, since the hair removal device may face low temperature environment during the process of changing different locations, the coolant, including antifreeze, can prevent the coolant from solidifying and stopping flow in the low temperature environment, and avoid solidification and volume increase that could damage the cooling pipes of the hair removal device.

[0076] 45. In one embodiment of the present invention, the pumping device includes a gear pump. The gear pump has a long head, which can provide strong power for the cooling circulation of the coolant; the water-electricity separation feature of the gear pump also increases the safety of use. Attached Figure Description

[0077] To more clearly illustrate the technical solutions in the embodiments of the present invention, 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 the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0078] Figure 1 is a three-dimensional structural schematic diagram of the hair removal device handpiece provided in the first embodiment of the present invention.

[0079] Figure 2 is a cross-sectional structural diagram of the hair removal device handpiece provided in the first embodiment of the present invention.

[0080] Figure 3 is an exploded structural diagram of the hair removal device handpiece provided in the first embodiment of the present invention.

[0081] Figure 4 is an enlarged view of part A of the structure in Figure 2.

[0082] Figure 5 is a three-dimensional structural diagram of the pulsed xenon lamp and reflector cup of the hair removal device handpiece provided in the first embodiment of the present invention.

[0083] Figure 6 is a cross-sectional structural schematic diagram of the hair removal device handpiece provided in the first embodiment of the present invention.

[0084] Figure 7 is a cross-sectional structural diagram of the hair removal device handpiece provided in the first embodiment of the present invention.

[0085] Figure 8 is a three-dimensional structural diagram of some components of the hair removal device handpiece provided in the first embodiment of the present invention.

[0086] Figure 9 is a cross-sectional view of the flow distribution member and the liquid cooling plate of the handpiece of the first embodiment of the present application.

[0087] Figure 10 is an exploded view of the flow distribution member and the liquid cooling plate of the handpiece of the first embodiment of the present application.

[0088] Figure 11 is a cross-sectional view of the liquid cooling plate of the handpiece of the first embodiment of the present application.

[0089] Figure 12 is a cross-sectional view of the handpiece of the first embodiment of the present application.

[0090] Figure 13 is a cross-sectional view of the handpiece of the first embodiment of the present application.

[0091] Figure 14 is a cross-sectional view of the light cup and the light emitting member of the handpiece of the first embodiment of the present application.

[0092] Figure 15 is an enlarged view of the portion B of Figure 3.

[0093] Figure 16 is a perspective view of the heat conducting insulating member, the electrically conducting member and the light emitting member of the handpiece of the first embodiment of the present application.

[0094] Figure 17 is a cross-sectional view of the handpiece of the first embodiment of the present application.

[0095] Figure 18 is a cross-sectional view of the handpiece of the first embodiment of the present application.

[0096] Figure 19 is a perspective view of the handpiece of the first embodiment of the present application.

[0097] Figure 20 is an exploded view of the handpiece of the first embodiment of the present application.

[0098] Figure 21 is a perspective view of the depilator of the second embodiment of the present application.

[0099] Figure 22 is a cross-sectional view of the water outlet of the depilator of the second embodiment of the present application.

[0100] Figure 23 is a cross-sectional view of the depilator of the second embodiment of the present application.

[0101] Figure 24 is an enlarged view of the portion C of Figure 23.

[0102] Figure 25 is a perspective view of the depilator of the second embodiment of the present application.

[0103] The drawing mark explanation: 1, hair removal instrument hand tool; 100, hair removal instrument; 10, light source mechanism; 11, heat-conducting insulating part; 12, light-emitting part; 13, light-transmitting part; 14, refrigeration sheet; 15, liquid cooling plate; 16, flow dividing part; 17, sealing gasket layer; 18, conductive part; 20, heat dissipation device; 21, water discharge; 22, liquid return pipe; 23, fan; 30, pump liquid device; 31, liquid delivery pipe; 32, pump; 40, light-emitting assembly; 60, hair removal instrument base; 70, hand tool shell; 71, circuit board; 110, light source mounting position; 111, first subpart; 112, second subpart; 113, liquid passing cavity; 114, light source groove; 115, light source cavity; 116, extension part; 117, wire passing hole; 121, pulsed xenon lamp; 122, reflecting cup; 131, light filter; 132, sealing sleeve; 133, light-transmitting part support; 151, flow passing channel; 161, flow dividing channel; 162, liquid inlet nozzle; 163, limiting hole; 164, containing groove; 165, butt joint sealing part; 171, gasket through hole; 181, fitting surface; 211, fin assembly; 212, cooling pipe; 1111, limiting part; 1112, liquid outlet nozzle; 1121, liquid passing hole; 1122, first sealing part; 1131, baffle; 1132, raised part; 1141, groove bottom; 1142, groove wall; 1161, extension raised part; 1162, insertion groove; 1211, anode; 1212, cathode; 1213, trigger electrode; 1220, terminal post; 1222, cup bottom; 1223, cup wall; 1321, sleeve eave; 1331, limiting block; 1511, curved part; 1512, butt joint female end; 1513, flow dividing subchannel; 1611, butt joint male end. DETAILED DESCRIPTION

[0104] In order to make the purpose, technical scheme and advantages of the present application clearer, the present application will be further described in detail below in combination with the drawings and examples. It should be understood that the specific examples described herein are only used to explain the present application and do not limit the present application.

[0105] It should be noted that when an element is referred to as being "fixed" to another element, it can be directly on the other element or there can be an intervening element. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or there can be an intervening element. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0106] In the present application, the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "transverse", "longitudinal", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. These terms are mainly used to better describe the present application and its embodiments, and are not intended to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation.

[0107] In addition, in addition to indicating the orientation or positional relationship, the above-mentioned partial terms can also be used to indicate other meanings, for example, the term "upper" can also be used to indicate a certain dependent relationship or connection relationship in some cases. For those skilled in the art, the specific meaning of these terms in the present application can be understood according to the specific circumstances.

[0108] In addition, the terms "mounting", "setting", "provided with", "connected", "connected" should be broadly understood. For example, it can be fixedly connected, detachably connected, or integrally constructed; it can be mechanically connected, or electrically connected; it can be directly connected, or indirectly connected through an intermediate medium, or it can be internal communication between two devices, elements or components. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0109] Please combine FIG. 1 to FIG. 4, the first embodiment of the present application provides a depilation instrument hand tool 1, the depilation instrument hand tool 1 includes light source mechanism 10, the light source mechanism 10 includes heat-conducting insulating piece 11 and light emitting assembly 40, the direction of light emitted from the depilation instrument hand tool 1 by light emitting assembly 40 is defined as light emitting direction, heat-conducting insulating piece 11 is arranged on the side of light emitting assembly 40 away from light emitting direction, heat-conducting insulating piece 11 is provided with liquid cavity 113, cooling liquid flows through liquid cavity 113 to dissipate heat for light emitting assembly 40.

[0110] It can be understood that by setting the light source mechanism 10 to include the heat-conducting insulation piece 11 and the light-emitting assembly 40, the heat-conducting insulation piece 11 is arranged on the side of the light-emitting assembly 40 away from the light-emitting direction, the heat-conducting insulation piece 11 is provided with a liquid passing cavity 113, the cooling liquid flows through the liquid passing cavity 113 to dissipate heat for the light-emitting assembly 40, the light-emitting assembly 40 and the liquid passing cavity 113 are separated by the cavity wall of the liquid passing cavity 113, the cooling liquid does not directly contact the light-emitting assembly 40 to take away the heat of the light-emitting assembly 40, but flows through the liquid passing cavity 113 to take away the heat conducted by the light-emitting assembly 40 through the cavity wall of the liquid passing cavity 113. Since the cooling liquid does not directly contact the light-emitting assembly 40 for cooling, the light emitted by the light-emitting assembly 40 will not cause the problem of energy loss caused by passing through the cooling liquid, so the energy conversion rate of the input electric energy of the depilator handpiece 1 into the output depilation energy is high, the depilator handpiece 1 has high energy utilization rate, it is not necessary to increase the light-emitting power of the light-emitting assembly 40 to make up for the energy loss, the light-emitting demand can be met with lower power, the reduction of the light-emitting power reduces the heat generated by the light-emitting assembly 40, the reduction of heat generation makes the heat dissipate in time, the depilator handpiece 1 will not appear to leak flash, and it is not necessary to work intermittently to wait for cooling, the depilator handpiece 1 can realize continuous high-speed depilation without waiting, thereby improving the depilation efficiency, and the reduction of the light-emitting power requirement reduces the volume requirement of the depilator handpiece 1, the depilator handpiece 1 can realize miniaturization of the household level.

[0111] It should be noted that the definition of the heat-conducting insulating member 11 means that at least part of the structure between the side of the heat-conducting insulating member 11 close to the light-emitting assembly 40 and the cavity surface of the liquid-passing cavity 113 close to the light-emitting assembly 40 has heat-conducting and insulating properties, so that the heat of the light-emitting assembly 40 can be conducted from the side of the heat-conducting insulating member 11 close to the light-emitting assembly 40 to the cavity surface of the liquid-passing cavity 113 close to the light-emitting assembly 40 based on the heat-conducting property, so that the cooling liquid flowing through the liquid-passing cavity 113 can take away the heat; meanwhile, a circuit is formed between the light-emitting assembly 40 and the liquid-passing cavity 113 based on the insulating property, so as to prevent the light-emitting assembly 40 from conducting electricity with the liquid-passing cavity 113. Alternatively, the heat-conducting insulating member 11 can have the heat-conducting and insulating properties as a whole; as a variant, the heat-conducting insulating member 11 can have the heat-conducting and insulating properties between the side of the heat-conducting insulating member 11 close to the light-emitting assembly 40 and the cavity surface of the liquid-passing cavity 113 close to the light-emitting assembly 40, so as to conduct the heat of the light-emitting assembly 40 from the side of the heat-conducting insulating member 11 close to the light-emitting assembly 40 to the cavity surface of the liquid-passing cavity 113 close to the light-emitting assembly 40, and form a circuit between the light-emitting assembly 40 and the liquid-passing cavity 113, so as to prevent the light-emitting assembly 40 from leaking electricity to the liquid-passing cavity 113; as another variant, the heat-conducting insulating member 11 can have the heat-conducting property between the side of the heat-conducting insulating member 11 close to the light-emitting assembly 40 and the cavity surface of the liquid-passing cavity 113 close to the light-emitting assembly 40, so as to conduct the heat of the light-emitting assembly 40 from the side of the heat-conducting insulating member 11 close to the light-emitting assembly 40 to the cavity surface of the liquid-passing cavity 113 close to the light-emitting assembly 40, and have the insulating property between the side of the heat-conducting insulating member 11 close to the light-emitting assembly 40 and the cavity surface of the liquid-passing cavity 113 close to the light-emitting assembly 40, so as to form a circuit between the light-emitting assembly 40 and the liquid-passing cavity 113, and prevent the light-emitting assembly 40 from leaking electricity to the liquid-passing cavity 113.

[0112] It should be noted that in the prior art, the cooling liquid directly flows through the light source for heat dissipation, and the light emitted by the light source can pass through the cooling liquid, resulting in energy loss. Therefore, in order to reduce the energy loss, only transparent and colorless pure water can be used, and antifreeze cannot be added, otherwise the antifreeze will further increase the energy loss due to its color. The absence of antifreeze in the cooling liquid may cause the cooling liquid to solidify and damage the internal pipeline during transportation and storage in extremely cold environments, causing damage to the equipment. In the technical solution of the present application, the cooling liquid does not directly contact the light-emitting assembly 40 for cooling, but flows through the liquid-passing cavity 113 to take away the heat conducted by the light-emitting assembly 40 through the cavity wall of the liquid-passing cavity 113. Therefore, the light emitted by the light-emitting assembly 40 will not cause energy loss due to passing through the cooling liquid, and the cooling liquid can be arbitrarily added with antifreeze, effectively preventing the cooling liquid from solidifying and stopping flowing in a low-temperature environment, and avoiding the damage to the cooling pipeline caused by the solidification and volume expansion.

[0113] It should be noted that since the cooling liquid in the technical solution of the present application does not directly contact the light emitting assembly 40 for cooling, the light emitted by the light emitting assembly 40 will not cause energy loss due to passing through the cooling liquid, and the energy efficiency ratio of the depilator handpiece 1 is 5 to 6 times that of the existing technical solution of directly flowing the cooling liquid through the light source for heat dissipation. When the depilator handpiece 1 of the present application uses a flash capacitor with a capacitance of 3500 μF / 360V, the actual charging is 320V, and the remaining voltage after discharge is 70V. Based on the capacitor energy storage formula, the flash capacitor releases 170.625J of energy, and the actual output of the depilator handpiece 1 is 35J of depilation energy, and the energy efficiency ratio of the depilator is 20.5%. In contrast, the existing technical solution of directly flowing the cooling liquid through the light source for heat dissipation uses a flash capacitor with a capacitance of 36000 μF / 450V, the actual charging is 420V, and the remaining voltage after discharge is 70V. Based on the capacitor energy storage formula, the flash capacitor releases 3087J of energy, and the maximum energy indicated in the specification is 120J, corresponding to an energy efficiency ratio of 3.887%. Therefore, the energy efficiency ratio of the depilator handpiece 1 of the present application is 5 to 6 times that of the technical solution of directly flowing the cooling liquid through the light source for heat dissipation. The huge improvement in energy efficiency ratio enables the depilator handpiece 1 to meet the light emitting requirements with lower power, and the power reduction reduces the heat generated by the light emitting assembly 40, and the reduced heat generation enables the heat to be dissipated in time, and the depilator handpiece 1 can realize continuous high-speed depilation, and the heat dissipation power is sufficient to remove the heat generated by continuous high-speed flashing, and there is no need for intermittent operation to wait for cooling, which greatly improves the depilation efficiency. The huge improvement in energy efficiency ratio further reduces the requirements for light emitting power and heat dissipation, thereby reducing the manufacturing cost and the size of the device, and realizing the miniaturization of the household level.

[0114] It should be noted that the semiconductor refrigeration sheet used to remove the heat conducted by the light emitting assembly 40 through the heat-conducting insulating member 11 cannot meet the heat dissipation requirements of the depilator handpiece 1 for continuous operation for uninterrupted depilation, as the heat dissipation power of the semiconductor refrigeration sheet is only a few watts, and the large amount of heat generated by continuous flashing will be retained in the device, resulting in flashing leakage, and the device needs to be stopped for cooling before use, and cannot realize continuous and uninterrupted high-speed depilation. If the low-efficiency semiconductor refrigeration sheet is used, increasing the size of the semiconductor refrigeration sheet to increase the heat dissipation power will inevitably increase the size of the depilator handpiece 1, making the depilator handpiece bulky and unable to realize the miniaturization of the household level.

[0115] Alternatively, the cooling liquid is water or ethylene glycol solution, oil-based cooling liquid, electronic fluorinated liquid, or other high specific heat capacity cooling liquid.

[0116] Please combine FIG. 2 to FIG. 4, further, the side of the heat-conducting insulating piece 11 towards the light-emitting direction is provided with a light source mounting position 110, and the light-emitting assembly 40 is arranged in the light source mounting position 110.

[0117] It can be understood that by arranging the light source mounting position 110 on the side of the heat-conducting insulating piece 11 towards the light-emitting direction, and arranging the light-emitting assembly 40 in the light source mounting position 110, the light-emitting assembly 40 realizes direct contact with the heat-conducting insulating piece 11, and heat transfer from the light-emitting assembly 40 to the heat-conducting insulating piece 11 can be realized in the form of heat conduction, thereby improving the heat dissipation efficiency.

[0118] Please combine FIG. 2 to FIG. 4, further, the light source mounting position 110 is a light source groove 114, the light source groove 114 is recessed towards the liquid passing cavity 113, and the light-emitting assembly 40 is at least partially arranged in the light source groove 114.

[0119] It can be understood that since the light source groove 114 is recessed towards the liquid passing cavity 113, it can provide a containing space for the light-emitting assembly 40, and the light-emitting assembly 40 is at least partially arranged in the light source groove 114, the light source groove 114 plays a role of containing, fixing and protecting the light-emitting assembly 40, and since the light source groove 114 is recessed towards the liquid passing cavity 113, the back of the light source groove 114 forms a corresponding protrusion in the liquid passing cavity 113, which can also increase the heat-conducting contact area, thereby improving the heat dissipation efficiency.

[0120] Optionally, the light-emitting assembly 40 is at least partially arranged in the light source groove 114, which can be that the light-emitting assembly 40 is entirely arranged in the light source groove 114, or that part of the light-emitting assembly 40 is exposed outside the light source groove 114, so as to facilitate electrical connection.

[0121] Please continue to combine FIG. 2 to FIG. 4, further, the light-emitting assembly 40 comprises a light-reflecting cup 122 and a light-emitting piece 12, the light-emitting piece 12 is at least partially arranged in the light-reflecting cup 122, and the light-reflecting cup 122 is at least partially arranged in the light source groove 114.

[0122] It can be understood that by arranging the light-emitting piece 12 at least partially in the light-reflecting cup 122, and arranging the light-reflecting cup 122 at least partially in the light source groove 114, the light-reflecting cup 122 can refract the light rays of the light-emitting piece 12 in the non-light-emitting direction, so that they can also be emitted along the light-emitting direction, so that the light emitted by the light-emitting piece 12 can be efficiently utilized and emitted as much as possible from the light-emitting direction, thereby improving the depilation efficiency of the depilation instrument handpiece 1. Arranging the light-reflecting cup 122 at least partially in the light source groove 114 can establish a heat conduction path for heat conduction from the light-reflecting cup 122 to the light source groove 114.

[0123] Optionally, the light emitting piece 12 is at least partially arranged in the light reflecting cup 122, which can be that the light emitting piece 12 is entirely arranged in the light reflecting cup 122, or that the light emitting piece 12 extends out of the light reflecting cup 122 at both ends, facilitating electrical connection with external circuit.

[0124] Optionally, the light reflecting cup 122 is at least partially arranged in the light source groove 114, which can be that the light reflecting cup 122 is entirely arranged in the light source groove 114, or that the light reflecting cup 122 partially extends into the heat conducting and insulating piece 11, facilitating electrical connection with external circuit.

[0125] Please continue to combine FIG. 2 to FIG. 4, further, the liquid passing cavity 113 is provided with a raised portion 1132 corresponding to the light source groove 114.

[0126] It can be understood that the raised portion 1132 can effectively increase the heat dissipation contact area of the back of the light source groove 114 and the cooling liquid in the liquid passing cavity 113 due to the raised shape, so that the heat of the light emitting assembly 40 can be conducted to the liquid passing cavity 113 with a larger area, improving the heat dissipation efficiency.

[0127] Please continue to combine FIG. 2 to FIG. 4, further, the thickness range between the light source groove 114 and the liquid passing cavity 113 is 0.5mm to 1mm; or 1mm to 2mm; or 2mm to 3mm; or 3mm to 4mm; or 4mm to 5mm.

[0128] It can be understood that since the light source groove 114 is used to accommodate the light emitting piece 12, the temperature variation range of the light emitting piece 12 is large, and the thickness range between the light source groove 114 and the liquid passing cavity 113 is 0.5mm to 1mm; or 1mm to 2mm; or 2mm to 3mm; or 3mm to 4mm; or 4mm to 5mm, which can not only prevent the geometric shape of the light source groove 114 from being deformed due to excessive thinness, but also avoid the thickness being too thick to reduce the speed and efficiency of heat conduction from the light source groove 114 to the liquid passing cavity 113.

[0129] Specifically, as a preferred embodiment, the thickness between the light source groove 114 and the liquid passing cavity 113 is 2mm.

[0130] Please continue to combine FIG. 2 to FIG. 4, further, the light emitting piece 12, the light reflecting cup 122 and the light source groove 114 are sequentially and tightly arranged.

[0131] It can be understood that the light emitting piece 12, the light reflecting cup 122 and the light source groove 114 are sequentially and tightly arranged, which eliminates the air gap, and the air gap is a poor conductor of heat, so that the light reflecting cup 122 not only concentrates light, but also efficiently conducts the heat of the light emitting piece 12 to the light source groove 114, forming a complete and efficient heat conduction path, improving the heat conduction efficiency.

[0132] Optionally, the fitting includes at least one of direct contact fitting, indirect contact fitting, and fitting with very close proximity, only slightly apart with a gap.

[0133] Please refer to FIG. 3 and FIG. 5, further, the light emitting member 12 is a pulse xenon lamp 121, the pulse xenon lamp 121 includes an anode 1211, a cathode 1212 and a trigger electrode 1213, the anode 1211 and the cathode 1212 are arranged at both ends of the pulse xenon lamp 121, and the trigger electrode 1213 is arranged between the anode 1211 and the cathode 1212; or the light emitting member 12 is an LED and / or a laser.

[0134] It should be noted that for the selection of the trigger electrode 1213 of the pulse xenon lamp 121, either a wire can be wound as the trigger electrode 1213, or the function of the trigger electrode 1213 can be realized by relying on the light reflecting cup 122 to fit the pulse xenon lamp 121. Understandably, the trigger electrode 1213 is a trigger electrode, by arranging the pulse xenon lamp 121 to include the anode 1211, the cathode 1212 and the trigger electrode 1213, the pulse xenon lamp 121 adopts an external triggering mode, which achieves better triggering effect and longer service life. The LED as the light emitting member 12 has the advantages of long service life, large light emitting area and low cost; the laser can quickly act on a large area of skin to improve the efficiency of hair removal.

[0135] Optionally, the pulse xenon lamp 121 can be arranged as a single lamp tube or a double lamp tube.

[0136] Please refer to FIG. 2, FIG. 4 and FIG. 5, further, the light reflecting cup 122 is the trigger electrode 1213.

[0137] Understandably, by arranging the light reflecting cup 122 as the trigger electrode 1213, the light reflecting cup 122 not only reflects light but also conducts electricity, without the need to externally wrap a trigger wire around the light emitting member 12 for external triggering, avoiding the external wrapping of the trigger wire around the light emitting member 12 to cause a gap between the light emitting member 12 and the light reflecting cup 122, which causes the heat conduction efficiency to decrease, ensuring that the light reflecting cup 122 and the light emitting member 12 are closely fitted, and improving the heat conduction efficiency between the two.

[0138] Please refer to FIG. 6, further, the heat conducting and insulating member 11 is provided with a wire passing hole 117, which communicates the side of the heat conducting and insulating member 11 close to the light emitting member 12 with the outside of the heat conducting and insulating member 11.

[0139] Understandably, when the light emitting member 12 adopts the pulse xenon lamp 121, the pulse xenon lamp 121 includes the anode 1211, the cathode 1212 and the trigger electrode 1213, and the wire electrically connected to the outside of the heat conducting and insulating member 11 can reach the side of the heat conducting and insulating member 11 close to the light emitting member 12 through the wire passing hole 117, and the trigger electrode 1213 is electrically connected to the external trigger signal source through the wire penetrating through the wire passing hole 117.

[0140] Please continue to refer to Figure 6, further, the light cup 122 is provided with a terminal post 1220 on the side facing the through-hole 117, and the terminal post 1220 is at least partially arranged in the through-hole 117.

[0141] Understandably, by arranging the terminal post 1220 on the side of the light cup 122 facing the through-hole 117, and the terminal post 1220 is at least partially arranged in the through-hole 117, the external circuit is facilitated to be electrically connected with the light cup 122 through the terminal post 1220, and the through-hole 117 also protects the terminal post 1220, thereby ensuring the stability of the electrical connection.

[0142] Please combine Figure 1, Figure 2, Figure 3 and Figure 7, further, the light source mechanism 10 further comprises a light-transmitting piece 13, a refrigeration sheet 14 and a liquid cooling plate 15, the light-transmitting piece 13 is arranged in the light-emitting direction, at least one side of the light-transmitting piece 13 is provided with the refrigeration sheet 14, and the side of the refrigeration sheet 14 away from the light-transmitting piece 13 is provided with the liquid cooling plate 15, and the liquid cooling plate 15 is provided with a flow passage 151.

[0143] Understandably, the light-transmitting piece 13 arranged in the light-emitting direction plays a role in light guiding, cooling and protecting the skin. By arranging the light-transmitting piece 13 in the light-emitting direction, at least one side of the light-transmitting piece 13 is provided with the refrigeration sheet 14, the side of the refrigeration sheet 14 away from the light-transmitting piece 13 is provided with the liquid cooling plate 15, and the liquid cooling plate 15 is provided with the flow passage 151, the refrigeration sheet 14 can efficiently absorb the heat on the light-transmitting piece 13 and conduct to the liquid cooling plate 15, and the cooling liquid flows through the flow passage 151 in the liquid cooling plate 15 to take away the heat. The above heat conduction path has high heat dissipation efficiency, and the heat of the light-transmitting piece 13 is fully taken away, effectively preventing the temperature of the light-transmitting piece 13 from being too high.

[0144] Optionally, the material of the light-transmitting piece 13 is any one of sapphire crystal, quartz glass and glass.

[0145] Please combine Figure 2, Figure 3 and Figure 7, further, the refrigeration sheet 14 and the liquid cooling plate 15 are two groups, two refrigeration sheets 14 are respectively arranged on opposite sides of the light-transmitting piece 13, and the cooling liquid flows through the corresponding flow passages 151 of the two liquid cooling plates 15 or sequentially flows through the corresponding flow passages 151 of the two liquid cooling plates 15 to cool the liquid cooling plates 15.

[0146] Understandably, by arranging the refrigeration sheet 14 and the liquid cooling plate 15 in two groups, one refrigeration sheet 14 and one liquid cooling plate 15 are arranged on opposite sides of the light-transmitting piece 13, heat can be dissipated from both sides of the light-transmitting piece 13, and the heat dissipation efficiency is improved. The cooling method of the cooling liquid for the liquid cooling plate 15 can be that the two liquid cooling plates 15 are independent of each other, and the cooling liquid flows into the two liquid cooling plates 15 at the same time to cool them, or that the two liquid cooling plates 15 are connected to each other, and the cooling liquid flows through the two liquid cooling plates 15 in sequence to cool them.

[0147] Please continue to combine Figure 2, Figure 3 and Figure 7, further, when the cooling liquid flows through the corresponding flow passages 151 of the two liquid cooling plates 15 respectively, the light source mechanism 10 further comprises an inlet nozzle 162 and a flow dividing piece 16, the inlet nozzle 162, the flow dividing piece 16 and the flow passage 151 are sequentially communicated, the flow dividing piece 16 is provided with a flow dividing passage 161, and the flow dividing passage 161 is communicated with the corresponding flow passages 151 of the two liquid cooling plates 15 at both ends respectively.

[0148] Understandably, since the flow dividing piece 16 is provided with the flow dividing passage 161, and the flow dividing passage 161 is communicated with the corresponding flow passages 151 of the two liquid cooling plates 15 at both ends respectively, the cooling liquid enters the flow dividing passage 161 from the inlet nozzle 162 for flow division, and flows through the flow passages 151 of the two liquid cooling plates 15 from both sides to take away the heat of the refrigeration fin 14. The double flow passages 151 enable the cooling liquid to take away the heat transferred by the light-transmitting piece 13 to the liquid cooling plate 15 from both sides of the light-transmitting piece 13 efficiently and uniformly.

[0149] Please combine Figure 3 and Figure 8, further, the light source mechanism 10 further comprises a light-transmitting piece support 133, the light-transmitting piece support 133 is sleeved on the light-transmitting piece 13, one of the sides of the light-transmitting piece support 133 and the flow dividing piece 16 close to each other is provided with a limiting block 1331, and the other side is provided with a corresponding limiting hole 163.

[0150] Understandably, the light-transmitting piece support 133 sleeved on the light-transmitting piece 13 plays a limiting and protecting role for the light-transmitting piece 13, and the sides of the light-transmitting piece support 133 and the flow dividing piece 16 close to each other are respectively provided with the limiting block 1331 and the limiting hole 163, so that the light-transmitting piece support 133 and the flow dividing piece 16 can be clamped with each other, and the positional relationship of the two is limited.

[0151] It should be noted that the limiting block 1331 and the limiting hole 163 can be provided on the light-transmitting piece support 133 and the flow dividing piece 16 respectively, or the limiting block 1331 and the limiting hole 163 can be provided on the light-transmitting piece support 133 and the flow dividing piece 16 respectively.

[0152] Please combine Figure 3, Figure 9 and Figure 10, further, one of the ports corresponding to the flow dividing passage 161 and the flow passage 151 is a mating male end 1611, and the other is a mating female end 1512, the mating male end 1611 is connected in cooperation with the mating female end 1512, the side where the mating male end 1611 is located is provided with a containing groove 164, the containing groove 164 is arranged on the outside of the mating male end 1611, and the containing groove 164 is provided with a mating sealing piece 165.

[0153] It can be understood that the ports of the shunt passage 161 and the overflow passage 151 corresponding to each other are respectively matched and connected as the mating male end 1611 and the mating female end 1512. Since the side where the mating male end 1611 is located is provided with a containing groove 164, the containing groove 164 is arranged outside the mating male end 1611, and the mating sealing element 165 is arranged in the containing groove 164. When the mating male end 1611 and the mating female end 1512 are matched and connected, the mating sealing element 165 outside the mating male end 1611 can prevent the cooling liquid from leaking at the connection between the shunt passage 161 and the overflow passage 151, and ensure the integrity and sealing of the connection between the shunt passage 161 and the overflow passage 151.

[0154] It should be noted that the setting of the mating male end 1611 and the mating female end 1512 can be that the port of the shunt passage 161 is the mating male end 1611, and the port corresponding to the overflow passage 151 is the mating female end 1512; or the port of the shunt passage 161 is the mating female end 1512, and the port corresponding to the overflow passage 151 is the mating male end 1611.

[0155] Specifically, as a preferred embodiment, the mating male end 1611 and the mating female end 1512 are both annular, and the diameter of the mating male end 1611 is less than or equal to the diameter of the mating female end.

[0156] Please combine FIG. 2 and FIG. 7, further, the cooling liquid flows through the overflow passage 151 and the liquid cavity 113 in sequence, so as to sequentially dissipate heat for the light-transmitting piece 13 and the light-emitting assembly 40.

[0157] It can be understood that, since the heat of the light-transmitting piece 13 is conducted to the liquid cooling plate 15 by the refrigeration sheet 14, and the heat of the light-emitting assembly 40 is conducted to the through-liquid cavity 113 by the cavity wall of the through-liquid cavity 113, these heats are finally taken away by the cooling liquid flowing through the flow channel 151 and the through-liquid cavity 113 in turn, so that the heat of the light-transmitting piece 13 and the light-emitting assembly 40 can be dissipated in time. Since the light-transmitting piece 13 will directly trigger the epilator handpiece 1 to stop to dissipate heat in order to prevent scalding when the temperature is too high, which causes a negative impact on the user experience, by setting the cooling liquid to flow through the flow channel 151 and the through-liquid cavity 113 in turn, the cooling liquid is cooled first through the flow channel 151 and then through the through-liquid cavity 113. The cooling liquid flowing through the flow channel 151 first and then the through-liquid cavity 113 has a lower initial cooling temperature for the light-transmitting piece 13, can take away more heat on the light-transmitting piece 13, improves the heat dissipation efficiency of the flow channel 151 for cooling the light-transmitting piece 13, and prevents the epilator handpiece 1 from stopping due to the temperature of the light-transmitting piece 13 being too high. By cooling the light-emitting assembly 40 after cooling the light-transmitting piece 13, the cooling sequence of the light-emitting assembly 40 with a higher instantaneous temperature during work is placed later, so that the temperature of the cooling liquid is still lower than the temperature of the through-liquid cavity 113 when flowing through the through-liquid cavity 113, which can effectively take away the heat of the through-liquid cavity 113, so that the heat dissipation for the light-transmitting piece 13 and the light-emitting assembly 40 can be smoothly and evenly performed; and the cooling sequence of the light-emitting assembly 40 after the light-transmitting piece 13 can not only cool the light-emitting assembly 40, but also ensure that the electrode still has sufficient electron emission ability after the temperature of the light-emitting assembly 40 decreases, thereby ensuring the stability of the light-emitting assembly 40. Through the above setting, the epilator handpiece 1 can continuously work, the heat can be dissipated in time, and there is no need for intermittent work for cooling, so that uninterrupted and high-speed epilation is realized, the user's epilation demand is immediately met, and the user experience is obviously improved.

[0158] Please combine FIG. 2 and FIG. 12, further, the cooling liquid flows through the through-liquid cavity 113 and the flow channel 151 in turn to dissipate heat for the light-emitting assembly 40 and the light-transmitting piece 13 in turn.

[0159] It can be understood that the cooling liquid flows through the through-liquid cavity 113 and the flow channel 151 in turn, and the heat of the light-emitting assembly 40 and the light-transmitting piece 13 can be taken away by the cooling liquid in turn through the through-liquid cavity 113 and the flow channel 151.

[0160] Please combine FIG. 2 and FIG. 13, further, the cooling liquid flows through the flow channel 151 and the through-liquid cavity 113 respectively to dissipate heat for the light-transmitting piece 13 and the light-emitting assembly 40 respectively.

[0161] It can be understood that by setting the cooling liquid to flow through the flow channel 151 and the liquid passage 113 respectively, the heat dissipation of the light-transmitting piece 13 and the light-emitting assembly 40 does not interfere with each other, and the cooling liquid can take away the heat of the light-transmitting piece 13 and the light-emitting assembly 40 through the flow channel 151 and the liquid passage 113 respectively.

[0162] Please refer to FIGS. 7 and 11, further, the flow channel 151 comprises at least one flow sub-channel 1513 and / or the flow channel 151 comprises at least one bending portion 1511.

[0163] It can be understood that by setting the flow channel 151 to comprise at least one flow sub-channel 1513 and / or the flow channel 151 to comprise at least one bending portion 1511, the flow channel 151 forms a bending portion 1511 every time the original straight flow direction changes, so that the cooling liquid flows in multiple paths and / or along a S-shaped repeated turning path in the liquid cooling plate 15, increases the flow path length of the cooling liquid in the liquid cooling plate 15, increases the surface area and time of the cooling liquid contacting the liquid cooling plate 15, and the cooling liquid can fully exchange heat with the liquid cooling plate 15 in the flow channel 151, thereby effectively improving the heat dissipation performance.

[0164] Please refer to FIG. 7, further, the volume of the liquid passage 113 is greater than the volume of the flow channel 151.

[0165] It can be understood that the volume of the liquid passage 113 is greater than the volume of the flow channel 151, so that the cooling liquid has a longer heat exchange time and a larger heat dissipation contact area when flowing through the liquid passage 113, thereby improving the heat dissipation efficiency of the cooling liquid flowing through the liquid passage 113.

[0166] Please refer to FIGS. 2, 3 and 8, further, a sealing pad layer 17 is arranged between the liquid cooling plate 15 and the heat-conducting insulating piece 11, the sealing pad layer 17 is provided with a pad layer through hole 171, and the pad layer through hole 171 connects the flow channel 151 and the liquid passage 113.

[0167] It can be understood that the sealing pad layer 17 is arranged between the liquid cooling plate 15 and the heat-conducting insulating piece 11, which can play a sealing role to prevent the cooling liquid from leaking through the gap at the contact surface of the liquid cooling plate 15 and the heat-conducting insulating piece 11, thereby improving the safety of the depilator handpiece 1 in operation, and the pad layer through hole 171 connects the flow channel 151 and the liquid passage 113, so that the cooling liquid can flow smoothly from the flow channel 151 to the liquid passage 113.

[0168] Please refer to FIGS. 2 and 3, further, the light source mechanism 10 further comprises a sealing sleeve 132, and the sealing sleeve 132 is sleeved on the light-transmitting piece 13.

[0169] It can be understood that by sleeving the sealing sleeve 132 on the light-transmitting piece 13, the sealing sleeve 132 can play a cold-keeping role on the light-transmitting piece 13, so that the light-transmitting piece 13 can have better cooling effect.

[0170] Please continue to combine FIG. 2 and FIG. 3, further, the sealing sleeve 132 is provided with a sleeve eave 1321 at one end of the light-emitting direction, and the sleeve eave 1321 extends away from the light-transmitting piece 13.

[0171] It can be understood that by providing the sleeve eave 1321 at one end of the light-emitting direction of the sealing sleeve 132, the sleeve eave 1321 extends away from the light-transmitting piece 13, which can seal the gap between the light-emitting direction of the light-transmitting piece 13 and the outer shell of the depilator hand tool 1, preventing the gel, dust, water and the like used during depilation from entering the depilator hand tool 1.

[0172] Further, the sealing sleeve 132 is a silica gel sealing sleeve.

[0173] It can be understood that the silica gel sealing sleeve has excellent heat resistance, elasticity and insulation, can withstand high temperature without deformation and damage, can deform to fill the gap to ensure sealing, and can also improve safety during use.

[0174] Please combine FIG. 2 to FIG. 4, further, the light source mechanism 10 further comprises a light filter 131, which is arranged between the light-emitting assembly 40 and the light-transmitting piece 13.

[0175] It can be understood that by arranging the light filter 131 between the light-emitting assembly 40 and the light-transmitting piece 13, the light emitted by the light-emitting assembly 40 is filtered by the light filter 131 before being emitted through the light-transmitting piece 13, so that the output spectrum of the light emitted from the light-transmitting piece 13 meets the depilation requirements, and the light spectrum that does not meet the requirements can be filtered out to achieve the depilation effect.

[0176] Please continue to combine FIG. 2 to FIG. 4, further, the light filter 131 and the inner wall of the light source groove 114 define a light source cavity 115, and the light source cavity 115 is not filled with cooling liquid.

[0177] It can be understood that the light source cavity 115 is not filled with cooling liquid, which is relatively better than the conventional water-cooled light source structure, which can avoid energy loss when the light emitted by the light-emitting assembly 40 passes through the cooling liquid, and also can prevent electric shock, and improve the safety in use.

[0178] Please continue to combine FIG. 2 to FIG. 4, further, the light source mechanism 10 further comprises a sealing sleeve 132, the sealing sleeve 132 is sleeved on the light-transmitting piece 13, a gap is left between the light filter 131 and the light-transmitting piece 13, and the end of the sealing sleeve 132 close to the light filter 131 seals the gap.

[0179] It can be understood that by setting the sealing sleeve 132 close to one end of the light filter 131 to seal the gap between the light filter 131 and the light transmission piece 13, a sealed space is formed, which avoids the problem that the gas near the light filter 131 and the light transmission piece 13 is liquefied and retained in the gap between the light filter 131 and the light transmission piece 13 due to cooling, thereby causing the light emitted by the light emitting piece 12 to be attenuated in energy when passing through the gap due to the condensation of the cooling liquid, which can further improve the light emission effect; at the same time, it can also avoid the accumulation of condensed water flowing out to cause conduction and cause safety accidents.

[0180] Please continue to combine FIGS. 2-4, further, the heat-conducting insulating piece 11 includes a heat-conducting insulating surface on at least one side of the light source groove 114.

[0181] It can be understood that the heat-conducting insulating piece 11 includes a heat-conducting insulating surface on at least one side of the light source groove 114, which can efficiently transfer heat to one side of the liquid passing cavity 113 due to good heat conduction performance, and can also play an insulating role to improve the safety of the depilator hand tool 1.

[0182] Further, as a preferred embodiment, the heat-conducting insulating surface is a ceramic surface.

[0183] It can be understood that ceramic is a relatively typical representative of heat-conducting insulating materials. The ceramic surface has a low linear expansion coefficient due to its ceramic material, and when the depilator hand tool 1 is working and not working, the temperature changes greatly. The ceramic surface provided by the ceramic support can ensure dimensional stability under a large temperature difference, thereby ensuring the structural stability of the light source mechanism 10, and the ceramic material also has good insulating properties, thereby improving the safety of the depilator hand tool 1.

[0184] Please combine FIGS. 2, 3 and 7, further, the heat-conducting insulating piece 11 is provided with a liquid passing hole 1121 connecting the liquid passing channel 151 and the liquid passing cavity 113, and the light source mechanism 10 is further provided with a liquid outlet nozzle 1112, the liquid outlet nozzle 1112 communicates with the liquid passing cavity 113, the liquid passing cavity 113 is provided with a baffle 1131 between the liquid outlet nozzle 1112 and the liquid passing hole 1121, and the cavity surface of the liquid passing cavity 113 close to the light source mounting position 110 leaves a gap with the baffle 1131.

[0185] Understandably, since the liquid outlet nozzle 1112 communicates with the liquid passing cavity 113, the liquid passing cavity 113 is provided with a baffle 1131 between the liquid outlet nozzle 1112 and the liquid passing hole 1121, the baffle 1131 changes the flow direction of the cooling liquid originally flowing from the liquid passing hole 1121 to the liquid outlet nozzle 1112, and a gap is left between the cavity surface of the liquid passing cavity 113 close to the light source mounting position 110 and the baffle 1131, so that the cooling liquid flows in the liquid passing cavity 113 as much as possible to adhere to the cavity surface of the liquid passing cavity 113 close to the light source mounting position 110, which can improve the heat dissipation efficiency, and the positional relationship of the baffle 1131 and the gap increases the flow path length of the cooling liquid flowing from the liquid passing hole 1121 to the liquid outlet nozzle 1112, so that the heat exchange process in the liquid passing cavity 113 is more sufficient, and the heat dissipation efficiency is improved.

[0186] Referring to FIG. 1, further, the depilator handpiece 1 comprises a preset first gear and / or a preset second gear and / or a preset third gear, the preset first gear outputs energy in the range of 5-15J, and the flash interval is 0.1s-0.3s; the preset second gear outputs energy in the range of 15-25J, and the flash interval is 0.3s-0.5s; the preset third gear outputs energy in the range of 25-35J, and the flash interval is 0.5s-1s.

[0187] Understandably, by setting the preset first gear and / or the preset second gear and / or the preset third gear, different energy output and flash interval gears can be provided to meet the diversified depilation needs of users. The present application uses the cooling liquid flowing through the liquid passing cavity 113 to carry away the heat conducted by the cavity wall of the liquid passing cavity 113 through which the light emitting assembly 40 passes, avoids the energy loss caused by the light passing through the cooling liquid, has high energy utilization rate, and is not restricted by the heat dissipation problem during continuous high-speed depilation. The heat generated by continuous high-speed flashing can be dissipated in time, and a small flash interval can be maintained. Even if the output energy is 25-35J, the flash interval can be as low as 0.5s-1s, continuous high-speed depilation is realized, the depilation efficiency is improved, and the user's depilation experience is greatly improved.

[0188] Specifically, as a preferred embodiment, the MCU on the main PCBA controls the opening and closing time of the IGBT to determine the flash interval length.

[0189] Please refer to FIGS. 2 and 3, further, the heat-conducting insulating piece 11 comprises a first sub-piece 111 and a second sub-piece 112, and the first sub-piece 111 and the second sub-piece 112 enclose the liquid passing cavity 113.

[0190] Understandably, the liquid passing cavity 113 is enclosed by the first sub-piece 111 and the second sub-piece 112, so that the manufacturing process of the liquid passing cavity 113 is simple, and the manufacturing difficulty and cost can be reduced.

[0191] Optionally, the first sub-component 111 and the second sub-component 112 can be arranged in parallel with the light emitting direction, or arranged in a direction perpendicular to the light emitting direction, which is not limited here.

[0192] Please continue to combine FIG. 2 and FIG. 3, further, the first sub-component 111 and the second sub-component 112 are arranged in sequence along the direction close to the light emitting component 40, and at least the second sub-component 112 of the first sub-component 111 and the second sub-component 112 is a ceramic support.

[0193] It can be understood that, since the first sub-component 111 and the second sub-component 112 are arranged in sequence along the direction close to the light emitting component 40, the second sub-component 112 is arranged on the side closer to the light emitting component 40, and the heat of the light emitting component 40 needs to be conducted to the liquid cavity 113 through the second sub-component 112, and the cooling liquid passes through the liquid cavity 113, so at least the second sub-component 112 needs to meet the heat conduction and insulation characteristics. The ceramic support has high thermal conductivity, can quickly conduct and dissipate the heat of the light emitting component 40, and improves the heat conduction efficiency; the ceramic support also has electrical insulation, which improves the safety of the use of the depilator hand tool 1.

[0194] Optionally, the first sub-component 111 and the second sub-component 112 can be ceramic materials, that is, the heat conducting and insulating component is entirely of ceramic material; or the second sub-component can be of ceramic material, and the first sub-component 111 does not have to be of ceramic material, and the first sub-component 111 can be of high-temperature-resistant and hydrolysis-resistant material.

[0195] Further, the ceramic support is an alumina ceramic support.

[0196] It can be understood that the alumina ceramic has a relatively high thermal conductivity, which enables the ceramic support to effectively conduct and dissipate heat by using the alumina ceramic support; and the alumina ceramic as an insulating material can effectively isolate the circuit to prevent electric leakage.

[0197] Please refer to FIG. 2, further, a first sealing member 1122 is arranged between the first sub-component 111 and the second sub-component 112.

[0198] It can be understood that, by arranging the first sealing member 1122 between the first sub-component 111 and the second sub-component 112, the gap can be filled when the first sub-component 111 and the second sub-component 112 are assembled, and the sealing effect is achieved, preventing the cooling liquid from leaking out of the liquid cavity 113, and improving the safety in use.

[0199] Please combine FIG. 2 to FIG. 4, further, the light source groove 114 includes a groove bottom 1141 and two groove walls 1142, the two groove walls 1142 are arranged on both sides of the groove bottom 1141, the light cup 122 includes a cup bottom 1222 and a cup wall 1223, the cup bottom 1222 and the cup wall 1223 correspond to the groove bottom 1141 and the groove wall 1142 respectively, and the light emitting piece 12 is attached to the cup bottom 1222.

[0200] It can be understood that by setting the light emitting piece 12 attached to the cup bottom 1222, the cup bottom 1222 attached to the groove bottom 1141, the light emitting piece 12, the light cup 122 and the light source groove 114 are in direct contact, the heat at the light emitting piece 12 can be conducted to the groove bottom 1141 of the light source groove 114 through the cup bottom 1222 of the light cup 122 by heat conduction, and then to the cavity surface of the liquid passing cavity 113 on the back of the light source groove 114, and finally taken away by the cooling liquid flowing through the liquid passing cavity 113. The cup wall 1223 can reflect the light emitted by the light emitting piece 12 in the non-light emitting direction, and convert the light in the light emitting direction. The cup wall 1223 is attached to the groove wall 1142, so that the heat received by the cup wall 1223 can be conducted to the groove wall 1142, and then to the cavity surface of the liquid passing cavity 113 on the back of the groove wall 1142, thereby increasing the heat dissipation contact area and improving the heat dissipation efficiency.

[0201] Please combine FIG. 2, FIG. 4 and FIG. 14, further, the radial wrapping angle of the light emitting piece 12 attached to the cup bottom 1222 is α, 120°≤α≤180°.

[0202] It can be understood that when the radial wrapping angle of the light emitting piece 12 attached to the cup bottom 1222 is too small, the light emitting piece 12 and the light cup 122 are not fully attached and contacted, the contact area is restricted when the heat is conducted from the light emitting piece 12 to the light cup 122, and the heat dissipation performance is insufficient; when the radial wrapping angle of the light emitting piece 12 attached to the cup bottom 1222 is too large, the cup wall 1223 will interfere with the light emitting direction of the light emitting piece 12, affecting the normal light emission of the light emitted by the light emitting piece 12, and reducing the light energy utilization efficiency. When the value of the radial wrapping angle is not greater than 180° and not less than 120°, a balance can be achieved between the heat dissipation efficiency and the light energy utilization efficiency, which can ensure that the light emitting piece 12 and the light cup 122 have sufficient contact area for heat conduction, and can not interfere with the normal light emission of the light emitted by the light emitting piece 12.

[0203] It should be noted that, since the light emitting piece 12 is attached to the cup bottom 1222 and leaves a gap with the cup wall 1223, in the radial section, the two ends where the cup bottom 1222 and the cup wall 1223 are in contact become the critical points of whether the light emitting piece 12 is attached and wrapped by the reflector cup 122, and the two ends are defined as the A end and the B end respectively, and the center point of the light emitting piece 12 is the O point, the O point is the vertex of the radial wrapping angle, and the OA and OB lines are the two sides of the radial wrapping angle, forming a radial wrapping angle α, 120°≤α≤180°.

[0204] Specifically, as a preferred embodiment, the cup bottom 1222 and the cup wall 1223 are both circular arcs, and the curvature of the cup bottom 1222 is greater than that of the cup wall 1223. By setting the cup bottom 1222 and the cup wall 1223 to be circular arcs, and since the cup bottom 1222 is attached to the light emitting piece 12, the circular arc cup bottom 1222 can increase the heat dissipation contact area under the condition that the distance between the two ends where the cup bottom 1222 and the cup wall 1223 are in contact is determined. The curvature of the cup bottom 1222 is greater than that of the cup wall 1223, so that the cup wall 1223 is expanded outward compared to the cup bottom 1222, avoiding interference in the light emitting direction of the light emitting piece 12, and preventing the normal light emission of the light emitted by the light emitting piece 12.

[0205] Please refer to FIG. 4 and FIG. 14, further, the groove bottom 1141 and the cup bottom 1222 are concentric circular arcs, and the concentric circular arcs have the axis of the light emitting piece 12 as the center.

[0206] It can be understood that, by setting the groove bottom 1141 and the cup bottom 1222 to be circular arcs, and the centers of the corresponding circular arcs of the groove bottom 1141 and the cup bottom 1222 coincide with the axis of the light emitting piece 12, forming concentric circular arcs, the groove bottom 1141 and the cup bottom 1222 can be matched in shape, and the cup bottom 1222 can be attached tightly and completely. The inner surface of the cup bottom 1222 is completely attached to the light emitting piece 12, and the tightly attached contact surface eliminates the air gap. Air is a poor conductor of heat, so the heat conduction efficiency from the light emitting piece 12 to the groove bottom 1141 through the cup bottom 1222 can be improved, thereby uniformly and efficiently conducting heat.

[0207] Please refer to FIG. 1, FIG. 3, FIG. 15-FIG. 18, further, the light source mechanism 10 further comprises a conductive piece 18, the conductive piece 18 is arranged on the heat-conducting and insulating piece 11, and the conductive piece 18 is electrically connected with the light emitting piece 12.

[0208] It can be understood that by setting the electrically conductive part 18 in electrical connection with the light-emitting part 12, the electrically conductive part 18 is arranged on the thermally conductive insulating part 11, thereby increasing a new heat conduction path. The electrically conductive part 18 has good thermal conductivity in addition to electrical conductivity, and the heat of the light-emitting part 12 can be conducted to the electrically conductive part 18 connected thereto. Since the electrically conductive part 18 is arranged on the thermally conductive insulating part 11, the heat can be further conducted to the thermally conductive insulating part 11, thereby establishing a heat conduction path from the light-emitting part 12 to the thermally conductive insulating part 11 via the electrically conductive part 18. The electrically conductive part 18 not only plays an electrical conduction role to electrically connect the light-emitting part 12, but also plays a heat conduction role, thereby increasing a new heat conduction path. The establishment of the heat conduction path makes the heat generated by the light-emitting part 12 more diversified in terms of conduction to the thermally conductive insulating part 11, and the heat can be more uniformly and comprehensively conducted, thereby avoiding the structural defect of uneven heat dissipation of the light-emitting part 12 due to the single heat dissipation path, and further improving the heat dissipation efficiency to a higher level.

[0209] Please combine FIG. 17 and FIG. 18, further, the electrically conductive part 18 at least partially fits the thermally conductive insulating part 11.

[0210] It can be understood that since the electrically conductive part 18 at least partially fits the thermally conductive insulating part 11, the contact relationship between the electrically conductive part 18 and the thermally conductive insulating part 11 is ensured. Whether the electrically conductive part 18 partially fits the thermally conductive insulating part 11 or the electrically conductive part 18 fully fits the thermally conductive insulating part 11, heat can be conducted from the electrically conductive part 18 to the thermally conductive insulating part 11.

[0211] It should be noted that the electrically conductive part 18 at least partially fitting the thermally conductive insulating part 11 includes the electrically conductive part 18 fitting the thermally conductive insulating part 11 in a full fitting or partial fitting manner. FIG. 17 shows that the electrically conductive part 18 fits the thermally conductive insulating part 11 in a partial fitting manner. FIG. 18 shows that the electrically conductive part 18 fits the thermally conductive insulating part 11 in a full fitting manner. Regardless of which fitting manner is adopted, as long as the contact between the electrically conductive part 18 and the thermally conductive insulating part 11 is achieved, the heat of the light-emitting part 12 can be conducted to the thermally conductive insulating part 11 through the electrically conductive part 18.

[0212] Please combine FIG. 3 and FIG. 15, further, the side of the electrically conductive part 18 fitting the thermally conductive insulating part 11 is defined as a fitting surface 181, and the area ratio of the area of the electrically conductive part 18 fitting the thermally conductive insulating part 11 to the area of the fitting surface 181 is not less than 10%.

[0213] It can be understood that by setting the area ratio of the electrically conductive part 18 fitting the thermally conductive insulating part 11 to the area of the fitting surface 181 to be not less than 10%, it is ensured that there is enough fitting area for the heat of the electrically conductive part 18 to be conducted to the thermally conductive insulating part 11 for heat dissipation, thereby preventing the fitting area from becoming a factor restricting the heat dissipation efficiency.

[0214] Please combine Figure 3, Figure 15 and Figure 16, further, the heat-conducting insulating part 11 includes an extension part 116, the extension part 116 is arranged on both sides of the liquid passing cavity 113, the extension part 116 includes an extension protruding part 1161 corresponding to the light source groove 114, and the conductive part 18 is at least partially attached to the extension protruding part 1161.

[0215] Understandably, by arranging the heat-conducting insulating part 11 to include the extension part 116 arranged on both sides of the liquid passing cavity 113, the extension part 116 includes the extension protruding part 1161 corresponding to the light source groove 114, the protruding shape of the extension protruding part 1161 corresponds to the recess of the light source groove 114, which provides a structural space for accommodating the light source groove 114 at the extension part 116, and the protruding shape of the extension protruding part 1161 has a larger heat dissipation contact area, which is conducive to heat conduction; the conductive part 18 is at least partially attached to the extension protruding part 1161, so that the heat of the light-emitting part 12 can be conducted to the extension protruding part 1161 via the conductive part 18, and then conducted to the liquid passing cavity 113 in the heat-conducting insulating part 11, and finally taken away by the cooling liquid flowing through the liquid passing cavity 113, further improving the heat dissipation efficiency.

[0216] Please continue to combine Figure 3, Figure 15 and Figure 16, further, the extension part 116 is provided with a slot 1162, and the conductive part 18 is at least partially inserted into the slot 1162.

[0217] Understandably, the slot 1162 is arranged in the extension part 116, and the conductive part 18 is at least partially inserted into the slot 1162, the slot 1162 can fix the conductive part 18, prevent the conductive part 18 from loosening due to external force and cause poor contact, and make the connection between the conductive part 18 and the light-emitting part 12 more firm, and ensure that the conductive part 18 and the light-emitting part 12 maintain a stable and reliable conductive and heat-conducting path.

[0218] Please continue to combine Figure 3, Figure 15 and Figure 16, further, the heat-conducting insulating part 11 includes a first part 111 and a second part 112, the first part 111 and the second part 112 are detachably connected, the slot 1162 is arranged on the second part 112, the first part 111 is provided with a limiting part 1111, and the limiting part 1111 abuts against the conductive part 18.

[0219] Understandably, by setting the heat-conducting insulating piece 11 to include the first sub-piece 111 and the second sub-piece 112, the first sub-piece 111 and the second sub-piece 112 are detachably connected, and the first sub-piece 111 and the second sub-piece 112 can be detached to facilitate the assembly of the conductive piece 18. Since the insertion groove 1162 is arranged on the second sub-piece 112, when the conductive piece 18 cooperates with the insertion groove 1162, the first sub-piece 111 is connected with the second sub-piece 112, and the limiting piece 1111 abuts against the conductive piece 18, so that the limiting piece 1111 can fix and constrain the positional relationship of the conductive piece 18, so that the connection relationship between the conductive piece 18 and the light-emitting piece 12 remains stable, avoiding the problem of loose contact.

[0220] Please refer to FIG. 3 and FIG. 16, further, the conductive piece 18 is a conductive copper sheet.

[0221] Understandably, the copper material of the conductive copper sheet not only has good conductivity, reduces heat generation with low resistivity to improve the efficiency of electrical energy use, and fully realizes the electrical connection between the light-emitting piece 12 and the external circuit, but also has excellent heat conduction performance, which can quickly conduct the heat of the end of the light-emitting piece 12 connected thereto to the heat-conducting insulating piece 11 for cooling.

[0222] Please refer to FIG. 19, FIG. 20 and FIG. 24, further, the heat-conducting insulating piece 11 is arranged with a circuit board 71 on the side opposite to the light-emitting direction, and the circuit board 71 is electrically connected with the light-emitting assembly 40.

[0223] Understandably, by arranging the circuit board 71 on the side of the heat-conducting insulating piece 11 opposite to the light-emitting direction, the circuit board 71 will not affect the normal light emission of the depilator handpiece 1, and the circuit board 71 is electrically connected with the light-emitting assembly 40, so that the circuit board 71 can control the working state of the light-emitting assembly 40.

[0224] Optionally, the depilator handpiece 1 is arranged with a handpiece shell 70, and the circuit board 71 and the light source mechanism 10 are arranged in the handpiece shell 70, and the handpiece shell 70 plays a role of accommodating and protecting the circuit board 71 and the light source mechanism 10.

[0225] Please refer to FIG. 2 and FIG. 7, further, the flow rate of the cooling liquid is 0.2-0.6 L / min.

[0226] Understandably, by setting the flow rate of the cooling liquid in the range of 0.2-0.6 L / min, the cooling liquid has sufficient circulation speed, which improves the heat exchange efficiency and timely removes the heat of the depilator handpiece 1.

[0227] Preferably, as a specific embodiment, the flow rate of the cooling liquid is 0.4-0.45 L / min.

[0228] Please combine with Figure 21 to Figure 25, the second embodiment of the present application provides a depilating instrument 100, the depilating instrument 100 includes heat dissipation device 20, pump liquid device 30 and depilating instrument hand tool 1, heat dissipation device 20, pump liquid device 30 and depilating instrument hand tool 1 are sequentially connected.

[0229] Preferably, as a specific embodiment, heat dissipation device 20 includes water discharge 21, liquid return pipe 22 and fan 23, pump liquid device 30 includes liquid sending pipe 31 and pump 32;Liquid return pipe 22, water discharge 21, pump 32 and liquid sending pipe 31 are sequentially connected, liquid sending pipe 31 and liquid return pipe 22 are connected with liquid inlet nozzle 162 and liquid outlet nozzle 1112 respectively;Water discharge 21 includes fin assembly 211 and cooling pipe 212 arranged in fin assembly 211, fan 23 arranged on one side of fin assembly 211 can blow or suck air to dissipate heat for fin assembly 211. When the depilating instrument 100 is running, the pump liquid device 30 pumps the cooling liquid into the liquid inlet nozzle 162 through the liquid sending pipe 31, and the cooling liquid flows through the flow channel 151 and the liquid passing cavity 113 to dissipate heat for the light-transmitting piece 13 and the light-emitting assembly 40 in turn. At this time, the cooling liquid absorbs heat, and then flows to the cooling pipe 212 of the water discharge 21 through the liquid return pipe 22. The heat of the cooling liquid is transmitted to the fin assembly 211 through the cooling pipe 212, and the fan 23 blows or sucks air to dissipate heat for the fin assembly 211 to dissipate heat. At this time, the heat of the cooling liquid is dissipated, and the cooling liquid is pumped into the liquid inlet nozzle 162 again by the pump 32 to circulate repeatedly.

[0230] Optionally, the depilating instrument 100 further comprises a depilating instrument base 60, and the heat dissipation device 20 and the pump liquid device 30 are arranged in the depilating instrument base 60, which plays a role of containing and protecting the heat dissipation device 20 and the pump liquid device 30.

[0231] Please continue to combine Figure 21 to Figure 25, further, the heat dissipation device 20 includes cooling liquid, and the cooling liquid includes antifreeze.

[0232] It can be understood that, since the depilating instrument 100 may face low temperature environment during conversion in different places, the cooling liquid including antifreeze can prevent the cooling liquid from freezing and stopping flowing in low temperature environment, and avoid damage to the cooling pipeline of the depilating instrument 100 caused by volume increase due to freezing.

[0233] Please continue to combine Figure 21 to Figure 25, further, the pump liquid device 30 includes a gear pump.

[0234] It can be understood that the pump 32 in the pump liquid device 30 is a gear pump, which has a long lift and can provide strong power for the cooling cycle of the cooling liquid;The water and electricity separation characteristics of the gear pump also increase the safety of use.

[0235] The above merely provides the preferred embodiment of the present application, and is not used to limit the present application, and any modification, equivalent replacement, improvement, etc. within the principle of the present application should be included in the protection scope of the present application.

Claims

1. An epilator handpiece, characterized in that The hair removal instrument hand tool comprises a light source mechanism, the light source mechanism comprises a heat-conducting insulating piece and a light-emitting assembly, the direction in which the light-emitting assembly emits light from the hair removal instrument hand tool is defined as a light-emitting direction, the heat-conducting insulating piece is arranged on the side of the light-emitting assembly that is away from the light-emitting direction, the heat-conducting insulating piece is provided with a liquid passing cavity, and cooling liquid flows through the liquid passing cavity to dissipate heat from the light-emitting assembly.

2. The epilator handpiece of claim 1, characterized in that: The side of the heat-conducting insulating piece that faces the light-emitting direction is provided with a light source mounting position, and the light-emitting assembly is arranged in the light source mounting position.

3. The epilator handpiece of claim 2, characterized in that: The light source mounting position is a light source groove, the light source groove is recessed into the liquid passing cavity, and the light-emitting assembly is arranged at least partially in the light source groove; the light-emitting assembly comprises a light-reflecting cup and a light-emitting element, the light-emitting element is arranged at least partially in the light-reflecting cup, and the light-reflecting cup is arranged at least partially in the light source groove.

4. The epilator handpiece of claim 3, characterized in that: The thickness range between the light source groove and the liquid passing cavity is 0.5 mm to 1 mm, or 1 mm to 2 mm, or 2 mm to 3 mm, or 3 mm to 4 mm, or 4 mm to 5 mm.

5. The epilator handpiece of claim 3, characterized in that: The light-emitting element, the light-reflecting cup and the light source groove are arranged in sequence.

6. The epilator handpiece of claim 3, characterized in that: The light-emitting element is a pulse xenon lamp, the pulse xenon lamp comprises an anode, a cathode and a trigger electrode, the anode and the cathode are arranged at two ends of the pulse xenon lamp, and the trigger electrode is arranged between the anode and the cathode; or the light-emitting element is an LED and / or a laser; the light-reflecting cup is the trigger electrode; the heat-conducting insulating piece is provided with a wire passing hole, the wire passing hole communicates the side of the heat-conducting insulating piece that is close to the light-emitting element with the outside of the heat-conducting insulating piece; the light-reflecting cup is provided with a terminal post on the side that faces the wire passing hole, and the terminal post is arranged at least partially in the wire passing hole.

7. The epilator handpiece of claim 3, characterized by: The light source mechanism further comprises a light-transmitting element, a refrigeration sheet and a liquid cooling plate, the light-transmitting element is arranged in the light-emitting direction, at least one side of the light-transmitting element is provided with the refrigeration sheet, the side of the refrigeration sheet that is away from the light-transmitting element is provided with the liquid cooling plate, and the liquid cooling plate is provided with a flow channel.

8. The epilator handpiece of claim 7, characterized by: The number of the refrigeration sheets and the liquid cooling plates is two, the two refrigeration sheets are arranged on opposite sides of the light-transmitting element respectively, and cooling liquid flows through the flow channels corresponding to the two liquid cooling plates respectively or in sequence to dissipate heat from the liquid cooling plate.

9. The epilator handpiece of claim 8, characterized by When the cooling liquid flows through the flow channels corresponding to the two liquid cooling plates respectively, the light source mechanism further comprises a liquid inlet nozzle and a flow dividing element, the liquid inlet nozzle, the flow dividing element and the flow channels are connected in sequence, the flow dividing element is provided with a flow dividing channel, and the flow dividing channel is connected with the flow channels corresponding to the two liquid cooling plates at two ends respectively.

10. The epilator handpiece of claim 9, characterized in that: The light source mechanism further comprises a light-transmitting piece support, the light-transmitting piece support is sleeved on the light-transmitting piece, one of the sides of the light-transmitting piece support and the flow distribution piece close to each other is provided with a limiting block, and the other is provided with a corresponding limiting hole; one of the ports defining the flow distribution channel and the flow channel corresponding to each other is a mating male end, and the other is a mating female end; the mating male end is connected with the mating female end in a matched mode, a containing groove is formed in the side of the mating male end, the containing groove is arranged on the outside of the mating male end, and a mating sealing piece is arranged in the containing groove.

11. The epilator handpiece of claim 7, characterized by: The cooling liquid flows through the flow channel and the liquid passage in sequence to sequentially cool the light-transmitting piece and the light-emitting assembly; or the cooling liquid flows through the flow channel and the liquid passage respectively to cool the light-transmitting piece and the light-emitting assembly respectively; or the flow channel comprises at least one flow distribution sub-channel and / or the flow channel comprises at least one bending part; the volume of the liquid passage is greater than that of the flow channel.

12. The epilator handpiece of claim 7, characterized by: A sealing pad layer is arranged between the liquid cooling plate and the heat-conducting insulating piece, the sealing pad layer is provided with a pad layer through hole, and the pad layer through hole communicates the flow channel and the liquid passage; the light source mechanism further comprises a sealing sleeve, and the sealing sleeve is sleeved on the light-transmitting piece.

13. The epilator handpiece of claim 12, characterized by An end of the sealing sleeve towards the light-emitting direction is provided with a sleeve eave, and the sleeve eave extends away from the light-transmitting piece; the sealing sleeve is a silica gel sealing sleeve.

14. The epilator handpiece of claim 7, characterized by: The light source mechanism further comprises a light filter, the light filter is arranged between the light-emitting assembly and the light-transmitting piece; the light filter and the inner wall of the light source groove are closed to define a light source cavity, and the light source cavity is not filled with cooling liquid; the light source mechanism further comprises a sealing sleeve, the sealing sleeve is sleeved on the light-transmitting piece, a gap is left between the light filter and the light-transmitting piece, and an end of the sealing sleeve close to the light filter seals the gap.

15. The epilator handpiece of claim 3, characterized by: The heat-conducting insulating piece is provided with at least one heat-conducting insulating surface on one side of the light source groove; and the heat-conducting insulating surface is a ceramic surface.

16. The epilator handpiece of claim 7, characterized by: The heat-conducting insulating piece is provided with a liquid passage hole communicating the flow channel and the liquid passage, the light source mechanism is further provided with a liquid outlet nozzle, the liquid outlet nozzle communicates with the liquid passage, the liquid passage is provided with a baffle between the liquid outlet nozzle and the liquid passage hole, and a gap is left between the cavity surface of the liquid passage close to the light source mounting position and the baffle.

17. The epilator handpiece of claim 1, characterized by: The hair removal instrument handpiece comprises a preset first gear and / or a preset second gear and / or a preset third gear, the preset first gear outputs energy in a range of 5-15 J, and the flash interval is 0.1 s-0.3 s; The preset second gear outputs energy in a range of 15-25 J, and the flash interval is 0.3 s-0.5 s; the preset third gear outputs energy in a range of 25-35 J, and the flash interval is 0.5 s-1 s.

18. The epilator handpiece of claim 1, characterized by: The heat-conducting insulating piece comprises a first sub-piece and a second sub-piece, and the first sub-piece and the second sub-piece form the liquid passage in a closed mode; The first sub-component and the second sub-component are arranged in sequence along a direction close to the light-emitting component, and at least the second sub-component is a ceramic support.

19. The epilator handpiece of claim 18, characterized by: A first sealing member is arranged between the first sub-component and the second sub-component.

20. The epilating device handpiece of claim 5, wherein: The light source groove comprises a groove bottom and two groove walls, the two groove walls are arranged on both sides of the groove bottom, the light-reflecting cup comprises a cup bottom and a cup wall, the cup bottom and the cup wall are respectively correspondingly attached to the groove bottom and the groove wall, and the light-emitting component is attached to the cup bottom.

21. The epilator handpiece of claim 20, characterized by: A radial wrapping angle defined by the attachment of the light-emitting component to the cup bottom is α, and 120°≤α≤180°; the groove bottom and the cup bottom are concentric circular arcs, and the concentric circular arcs take the axis of the light-emitting component as the center.

22. The epilator handpiece of claim 3, characterized by: The light source mechanism further comprises an electrically conductive component, the electrically conductive component is arranged on the thermally conductive and insulating component, and the electrically conductive component is electrically connected to the light-emitting component; and the electrically conductive component is at least partially attached to the thermally conductive and insulating component.

23. The epilator handpiece of claim 22, characterized by: The electrically conductive component is a conductive copper sheet.

24. The epilating device handpiece of claim 1, wherein: The thermally conductive and insulating component is provided with a circuit board on a side opposite to the light-emitting direction, the circuit board is electrically connected to the light-emitting component; and the flow rate of the cooling liquid is 0.2-0.6 L / min.

25. An epilator, characterized by The hair removal instrument comprises a heat dissipation device, a pump liquid device and a hair removal instrument hand tool according to any one of claims 1-24, and the heat dissipation device, the pump liquid device and the hair removal instrument hand tool are sequentially connected.

26. The epilator of claim 25, wherein: The heat dissipation device comprises cooling liquid, and the cooling liquid comprises anti-freezing liquid; and the pump liquid device comprises a gear pump.

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