Cosmetic instrument handle with refrigeration function and temperature control system

Abstract

The beauty instrument handle with the refrigeration function comprises a handheld part, a circuit board is arranged in the handheld part, the handheld part is detachably connected with a treatment part, a connecting part is arranged in the handheld part, and a first conveying pipeline penetrates through the middle of the connecting part; the end, close to the handheld part, of the first conveying pipeline is detachably connected with a second conveying pipeline. The other end is connected with a volatilization device; the second conveying pipeline is connected with a refrigerant medium conveying device, and the first conveying pipeline and the second conveying pipeline are both used for conveying refrigerant media. The treatment part is detachably connected with the handheld part through the connecting part; the treatment part comprises a shell, and a refrigeration sheet, a heat conducting sheet, a treatment sheet and a protective film are sequentially arranged in the shell; according to the invention, through the design of the volatilization device and the conveying pipeline, the rapid and uniform conveying of cold air is realized, and the cooling efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the field of medical equipment, and in particular to a beauty instrument handle with a refrigeration function. Background Art

[0002] The field of aesthetic medical technology has developed rapidly in recent years, especially in radiofrequency treatment and cryotherapy. Radiofrequency treatment stimulates collagen production by generating heat energy, thereby achieving the effect of tightening the skin and reducing wrinkles. Cryotherapy reduces inflammation and swelling by lowering the skin surface temperature, improving treatment comfort, and protecting the skin from thermal damage. With the advancement of technology, the market demand for aesthetic medical devices continues to grow, especially in terms of safety, effectiveness and user experience.

[0003] Radiofrequency therapy uses electromagnetic waves of a specific frequency to act on the dermis of the skin, causing water molecules to vibrate and generate heat, stimulating the contraction and regeneration of collagen fibers, thereby tightening the skin and reducing wrinkles. Cold therapy technology uses low temperatures to cause skin blood vessels to contract, reduce skin metabolism, reduce inflammation and swelling, and protect the skin surface from thermal damage. The synergistic effect of the two can enhance the effect of beauty treatment and reduce adverse reactions.

[0004] Graphene materials have attracted much attention due to their excellent thermal management properties. Graphene has high thermal conductivity, making it an ideal choice for making efficient thermal interface materials, which is especially important for aesthetic medical devices that require precise temperature control. In addition, graphene's low temperature properties also make it have potential application value in the field of thermal management.

[0005] In addition to high thermal conductivity and low temperature properties, graphene has good chemical stability and is not prone to chemical reactions during long-term contact with the cooling medium, which can ensure the long-term effectiveness of the cooling system. At the same time, its unique two-dimensional crystal structure can form an efficient heat conduction channel, quickly transferring heat from the heat source to the cooling interface, greatly improving the cooling efficiency.

[0006] Many existing beauty devices rely on natural air cooling for heat dissipation, which has limited heat dissipation capacity. Especially when the device generates a lot of heat, the air cooling effect is not ideal and cannot quickly and effectively reduce the device temperature. Due to the complex structure of some devices, the heat dissipation components are difficult to contact the heat source, or the heat dissipation path is too long, resulting in reduced heat dissipation efficiency.

[0007] The existing natural air cooling method cannot dissipate heat in time when the beauty instrument is working at high intensity, which will cause the internal temperature of the device to be too high. It not only affects the performance stability and service life of key components of the device (such as radio frequency generators, temperature sensors, etc.), but may also increase the risk of skin burns due to local overheating, seriously affecting the safety and reliability of the device. Summary of the invention

[0008] The technical problem to be solved by the present invention is that many existing beauty devices currently rely on natural air cooling for heat dissipation, which has limited heat dissipation capacity. Especially when the device generates a large amount of heat, the air cooling effect is not ideal and the device temperature cannot be quickly and effectively reduced. Due to the complex structure of some devices, it is difficult for the heat dissipation components to contact the heat source, or the heat dissipation path is too long, resulting in reduced heat dissipation efficiency.

[0009] In order to solve the above technical problems, the present invention provides a beauty instrument handle with a refrigeration function, comprising a hand-held part, a circuit board is provided in the hand-held part, the hand-held part is detachably connected to a treatment part, a connecting part is provided in the hand-held part, a first delivery pipe runs through the middle of the connecting part, and the first delivery pipe is detachably connected to the second delivery pipe at one end close to the hand-held part; the other end is connected to a volatilization device; the second delivery pipe is connected to a cold medium delivery device, and the first delivery pipe and the second delivery pipe are both used to transmit cold medium; the treatment part is detachably connected to the hand-held part through the connecting part; the treatment part comprises an outer shell, and a refrigeration plate, a heat conductive plate, a treatment plate, and a protective film are arranged in sequence in the outer shell; a plurality of temperature sensors and a plurality of electrode points are arranged on the treatment plate; the circuit board is respectively connected to the temperature sensor and the electrode points; during the assembly process of the treatment part and the hand-held part, the refrigeration device is pressed on the heat conductive plate.

[0010] Preferably, the side of the connecting part in contact with the treatment part is an inclined surface, and the other side of the connecting part is a vertical surface. The lower and upper parts of the inclined side of the connecting part are provided with grooves, and a number of evenly arranged power pins are provided in the grooves. The power pins are electrically connected to the electrode points through the treatment part. Installation grooves are symmetrically provided on both sides of the connecting part, and support columns are provided in the installation grooves. A limiting device is installed on the support columns through a spring.

[0011] Preferably, the limiting device includes a button and a limiting rod, the limiting rod is provided with a button, and the limiting rod moves up and down along the direction of the support column by pressing the button, the limiting rod is clamped with the outer shell, and slots are provided on both sides of the inner wall of the outer shell, and the slots cooperate with the limiting rod in the limiting device.

[0012] Preferably, a delivery port is provided on the connection surface between the volatilization device and the first delivery pipe, and a plurality of volatilization holes are evenly provided around the volatilization device, and the volatilization holes penetrate the side of the volatilization device and are connected with the delivery port.

[0013] Preferably, the volatilization device comprises a low-temperature resistant volatilization material for volatilizing the cold medium.

[0014] Preferably, the volatile material is a graphene heat conductive block.

[0015] Preferably, a plurality of evenly arranged volatilization ports are provided on both sides of the shell, the air ducts in the volatilization ports are inclined downward, the volatilization ports correspond to the volatilization holes on one side of the refrigeration device, and a baffle corresponding to the volatilization holes on the other side of the refrigeration device is provided on the inner side of the shell.

[0016] Preferably, the cold medium comprises liquid nitrogen.

[0017] Preferably, a temperature insulation layer is provided between the connecting portion and the hand-held portion.

[0018] A beauty instrument temperature control system is applied to the beauty instrument handle, comprising a control unit, a temperature signal acquisition unit, and a refrigeration unit, wherein the control unit is electrically connected to the temperature signal acquisition unit and the refrigeration unit; the control unit comprises a circuit board and a controller installed on the circuit board; the temperature signal acquisition unit comprises a plurality of temperature sensors, and the temperature sensors are electrically connected to the controller; the refrigeration unit comprises a cold medium conveying device, a first conveying pipeline, a second conveying pipeline, a volatilization device, a refrigeration plate, and a heat conducting plate, and the cold medium conveying device is electrically connected to the controller.

[0019] The handheld part provided in the embodiment of the present application adopts a streamlined design that conforms to the grip curve of the human hand, and the surface is covered with a non-slip, skin-friendly material, such as silicone or rubber coating, to improve the comfort and stability of user operation and reduce hand fatigue during long-term use.

[0020] The connection part provided in the embodiment of the present application is applied, and the design angle of the inclined surface of the connection part is precisely calculated, which can ensure the smooth insertion and removal of the treatment part, and at the same time, can form a stable mechanical support structure between the treatment part and the handheld part, effectively disperse the force during the treatment process, and prevent the connection from loosening due to external force. A smooth transition design is adopted between the inclined surface and the vertical surface to reduce stress concentration points and improve the mechanical strength and durability of the connection part.

[0021] The power plug provided in the embodiment of the present application is applied. The power plug in the slot adopts an elastic telescopic design, and its head is made of gold-plated material to improve the conductivity and oxidation resistance. When the treatment part and the connection part are assembled, the power plug can automatically adjust the insertion depth to ensure a tight and stable electrical connection with the electrode point, while avoiding poor contact caused by too deep or too shallow insertion.

[0022] The limit device provided in the embodiment of the present application is applied, and the button in the limit device adopts a convex design, which is convenient for the user to operate and press. The limit rod can be quickly ejected and retracted under the action of the spring, and the matching accuracy between it and the housing slot is controlled within ±0.1mm, ensuring the position accuracy and stability of the treatment part after installation. This limit device can not only effectively prevent the treatment part from accidentally falling off during use, but also play a fixed protective role when the equipment is transported or stored.

[0023] The treatment part provided in the embodiment of the present application is applied, and the refrigeration sheet uses a semiconductor refrigeration sheet, which has the advantages of high refrigeration efficiency, small size, and no noise. Its refrigeration power can be adjusted between 10-50W according to actual needs. The thermal conductive sheet is made of copper-aluminum alloy, which has good thermal conductivity and processing technology, and can quickly and evenly transfer the cold generated by the refrigeration sheet to the treatment sheet. The treatment sheet is made of medical stainless steel, and the surface is finely polished to ensure good conductivity and biocompatibility, and can safely contact the skin for treatment. The protective film is made of transparent and soft polyethylene terephthalate (PET) film with a thickness of 0.1-0.2mm, which can effectively prevent scratches and contamination on the surface of the treatment sheet, and at the same time does not affect the transfer of cold and radio frequency energy emission.

[0024] The treatment part provided in the embodiment of the present application is applied, wherein the temperature sensors are evenly distributed on the surface of the treatment piece, the number is 3-5, and they are located in the center and the surrounding area of ​​the treatment piece respectively, which can accurately monitor the temperature changes at different positions of the treatment piece and provide comprehensive and accurate temperature feedback information for the temperature control system. The electrode points are arranged in a circular array, distributed around the center of the treatment piece, the number is 6-10, which can ensure that the radio frequency energy is evenly distributed on the skin surface, avoiding differences in treatment effects and safety hazards caused by excessive or low local energy.

[0025] The treatment part provided by the embodiment of the present application is applied, wherein the graphene heat conductive block is selected as the volatilization material because it has an extremely high specific surface area and excellent low-temperature thermal conductivity. During the volatilization process of the cold medium (such as liquid nitrogen), the graphene heat conductive block can quickly absorb the cold of the cold medium and evenly distribute it, making the volatilization speed faster and more stable. Compared with traditional volatilization materials, its volatilization efficiency can be increased by 30%-50%, and it can effectively reduce the loss of the cold medium during the volatilization process and reduce the cost of use. A microchannel structure is provided inside the volatilization device, and the channel diameter is 0.5-1mm, which is distributed in a spiral shape, which can increase the residence time and contact area of ​​the cold medium in the volatilization device, and further improve the volatilization efficiency. The aperture of the volatilization hole is 0.2-0.3mm, and it is processed by laser punching technology. The hole wall is smooth, which can ensure that the cold air flows out evenly and stably, and avoid the problem of uneven distribution of cold air caused by the difference in aperture.

[0026] The treatment part provided in the embodiment of the present application is applied, wherein the air duct in the volatilization port is tilted downward at an angle of 30°-45°. This design can use gravity to make the volatilized cold medium flow downward naturally, avoiding the upward backflow of cold air affecting other components inside the device. At the same time, the tilted air duct can make the cold air form a fan-shaped airflow after flowing out of the volatilization port, covering the skin treatment area more evenly and improving the consistency of the cooling effect.

[0027] The treatment part provided in the embodiment of the present application is applied, wherein the baffle adopts an arc design, and its arc matches the shape of the volatilization device, which can effectively guide the cold medium to flow to the volatilization port along the predetermined flow channel. The surface of the baffle is coated with a heat-insulating material, such as a ceramic coating, which can reduce the loss of cold during the transmission process and improve the cooling efficiency. At the same time, the baffle and the shell are detachably connected to facilitate cleaning and maintenance.

[0028] Using the temperature control system of the beauty instrument provided in the embodiment of the present application,

[0029] Control unit: The controller uses a fuzzy control algorithm, which can quickly and accurately calculate the delivery volume of the refrigerant medium and the output power of the radio frequency energy according to the real-time temperature signal fed back by the temperature sensor. It has a built-in temperature threshold setting module, which can automatically adjust the upper and lower limits of the temperature according to different treatment modes (such as skin tightening, soothing and repairing, etc.), ensuring that the temperature control accuracy during the treatment process is within ±1°C. At the same time, the controller also has fault diagnosis and alarm functions, which can monitor the working status of various components of the equipment in real time, such as the pressure and flow abnormalities of the refrigerant medium delivery device, the fault information of the cooling plate, temperature sensor and other components, and send out sound and light alarm signals in time to ensure the safe and reliable operation of the equipment.

[0030] Temperature signal acquisition unit: The temperature sensor uses a high-precision thermistor with a measurement accuracy of up to ±0.5°C. Before the equipment leaves the factory, it undergoes a strict calibration procedure, uses a standard temperature source to perform multi-point calibration on each temperature sensor, and stores the calibration data in the controller's memory. During the operation of the equipment, the controller can make real-time corrections to the measured value of the temperature sensor based on the calibration data to ensure the accuracy of temperature measurement.

[0031] Refrigeration unit: The cold medium delivery device adopts a closed-loop control system consisting of a micro plunger pump and a pressure regulating valve. The plunger pump can accurately control the delivery flow of the cold medium, and the flow adjustment range is 0.1-10ml / min. The pressure regulating valve can automatically adjust the output pressure of the cold medium according to the internal pressure feedback signal of the equipment to ensure that the cold medium can be stably delivered to the volatilization device under different treatment needs. At the same time, a safety valve is installed inside the delivery device. When the pressure exceeds the set value, the safety valve automatically opens to release the pressure to ensure the safe operation of the equipment.

[0032] The first and second delivery pipelines are both double-layer stainless steel pipes. The inner layer is a seamless stainless steel pipe for transmitting the refrigerant medium, and the outer layer is a vacuum insulated stainless steel pipe, which can effectively reduce the heat exchange of the refrigerant medium during the transportation process. The connection between the pipes is welded to ensure the sealing and strength of the connection parts. The outside of the pipe is wrapped with a polyurethane foam insulation layer to further reduce the loss of cold and improve the efficiency of refrigerant transportation.

[0033] Advantages of the present invention:

[0034] 1. Innovatively integrate radio frequency and cryotherapy technologies, based on rigorous research on skin physiological functions, to achieve precise coordination between the two in the treatment process. Under strict control of the multi-dimensional balance of equipment durability, ease of operation and cost-effectiveness, the effectiveness of beauty treatment is significantly enhanced, the user experience is deeply optimized, and the skin firmness and wrinkle improvement effects are effectively improved, while reducing the risk of adverse reactions.

[0035] 2. The volatilization device and the delivery pipeline are precisely designed to ensure that the cold air is transmitted in an efficient and uniform flow state, greatly improving the cooling efficiency and providing a stable and suitable low-temperature environment for the treatment area.

[0036] 3. The innovative split structure of the volatilization device and the treatment unit, combined with the efficient thermal management application of graphene heat conductive blocks, is based on the principles of materials science and heat conduction. While significantly improving the refrigeration performance, it effectively controls the overall cost and enhances market competitiveness through a reasonable cost deconstruction strategy.

[0037] 4. The temperature control system uses sensor technology and intelligent algorithms to maintain the constant treatment temperature with a high-precision temperature feedback control loop, strictly abides by medical equipment safety standards, and effectively ensures the safety and effectiveness of the entire treatment process.

[0038] 5. The handle of the beauty instrument is carefully designed according to the principles of ergonomics. The material and shape of the handheld part have been repeatedly tested and optimized to ensure comfortable holding. The connection part adopts a reliable mechanical structure and a convenient plug-in design, combined with the aerodynamic optimization of the evaporation port and the efficient thermal isolation technology of the insulation layer, which comprehensively improves the practicality and stability of the equipment and gives users an excellent overall usage experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 It is a three-dimensional diagram of a handle of a beauty instrument with a cooling function.

[0040] Figure 2 The exploded view shows the treatment part and the connection part of the handle of a beauty instrument with cooling function.

[0041] Figure 3 The invention discloses a stereoscopic diagram of the connection between the connecting part of the handle of a beauty instrument with a cooling function and a volatilization device.

[0042] Figure 4 The invention discloses a stereoscopic diagram of the connection part of the handle of a beauty instrument with a cooling function.

[0043] Figure 5 The invention discloses a side view of the connection part of the handle of a beauty instrument with a cooling function.

[0044] Figure 6 The present invention is a three-dimensional diagram of a volatilization device of a beauty instrument handle with a cooling function.

[0045] Figure 7 The present invention is a stereoscopic diagram of a treatment head of a beauty instrument handle having a cooling function.

[0046] Figure 8 The present invention is a side view of a treatment head of a beauty instrument handle having a cooling function.

[0047] Fig. 9 The present invention is a three-dimensional diagram of the interior of a treatment head of a beauty instrument handle having a cooling function.

[0048] Fig.10 The present invention is a three-dimensional diagram of a limit device for a handle of a beauty instrument with a cooling function.

[0049] Fig.11 It is a control diagram of the temperature control system of a beauty instrument.

[0050] As shown in the figure: 1. Hand-held part; 2. Treatment part; 201. Heat conductive sheet; 202. Protective film; 203. Volatilization port; 204. Card slot; 205. Baffle; 206. Treatment sheet; 207. Temperature sensor; 208. Electrode point; 3. Circuit board; 4. Second delivery pipeline; 5. Connecting part; 501. Support column; 502. Slot body; 503. Power plug; 504. Installation slot; 6. Insulation layer; 7. First delivery pipeline; 8. Limiting device; 801. Button; 802. Limiting rod; 9. Volatilization device; 901. Delivery port; 902. Volatilization hole; 10. Refrigeration sheet; 11. Refrigeration unit; 12. Control unit; 13. Temperature signal acquisition unit; 14. Controller. DETAILED DESCRIPTION

[0051] The specific implementation of the present invention is further described below in conjunction with the accompanying drawings, wherein the same components are represented by the same reference numerals.

[0052] It should be noted that the words "front", "rear", "left", "right", "up" and "down" used in the following description refer to directions in the drawings, and the words "inside" and "outside" refer to directions toward or away from the geometric center of a specific component, respectively.

[0053] In order to make the contents of the present invention more clearly understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0054] Combined with Figure 1-11 As shown, a beauty instrument handle with a refrigeration function includes a hand-held part 1, a circuit board 3 is provided in the hand-held part 1, the hand-held part 1 is detachably connected to a treatment part 2, a connecting part 5 is provided in the hand-held part 1, a first delivery pipe 7 runs through the middle of the connecting part 5, and the first delivery pipe 7 is detachably connected to a second delivery pipe 4 at one end close to the hand-held part 1; and a volatilization device 9 is connected to the other end; the second delivery pipe 4 is connected to a cold medium delivery device, and the first delivery pipe 7 and the second delivery pipe 4 are both used for transmitting cold medium.

[0055] Among them, the handheld part 1 is the main part of the beauty instrument operated by the user, and a circuit board 3 is provided inside to control the functions of the entire device. The treatment part 2 is detachably connected to the handheld part 1 through the connecting part 5, which is convenient for replacement or cleaning. The cold medium includes liquid nitrogen. The cold medium conveying device is responsible for conveying the cold medium such as liquid nitrogen from the storage container to the volatilization device 9. This device can control the flow rate and pressure of the cold medium to meet different treatment needs. The second delivery pipeline 4 is used to transport the cold medium. Cooperating with the first delivery pipeline 7, it ensures that the cold medium can be continuously supplied during the treatment process. The first delivery pipeline 7 is a channel connecting the volatilization device 9 and the handheld part 1, and is responsible for conveying the cold medium from the volatilization device to the treatment part 2. It runs through the middle of the connecting part 5 to ensure that the cold medium can be directly delivered to the treatment area. The volatilization device 9 is located at the other end of the first delivery pipeline 7, and is responsible for volatilizing the liquid cold medium into a gaseous state. The volatilization device 9 includes a low-temperature resistant volatilization material for volatilizing the cold medium. The volatilization material is a graphene heat conductive block. The volatilization device 9 is usually made of a low-temperature resistant material, such as a graphene heat conductive block, to ensure efficient heat exchange.

[0056] Among them, heat is generated during radiofrequency treatment, which may cause discomfort to the user. Cooling down through cold therapy can reduce the heat sensation on the skin surface and improve the comfort of treatment. Cold therapy can reduce the potential damage to the skin caused by high temperature and protect the skin from thermal damage. Alternating hot and cold can stimulate the skin to contract and expand, promote blood circulation, and enhance the effect of radiofrequency treatment.

[0057] The treatment part 2 includes a shell, in which a cooling sheet 10, a heat conducting sheet 201, a treatment sheet 206, and a protective film 202 are sequentially arranged. These components constitute the core of the treatment part 2, the cooling sheet 10 is responsible for cooling, the heat conducting sheet 201 transfers cold, the treatment sheet 206 contacts the skin for treatment, and the protective film 202 protects the treatment sheet 206.

[0058] The treatment sheet 206 is provided with a plurality of temperature sensors 207 and a plurality of electrode points 208; the circuit board 3 is connected to the temperature sensor 207 and the electrode point 208 respectively. The temperature sensor 207 monitors the temperature of the treatment sheet 206, and the electrode point 208 provides current for electrotherapy. It is connected to the circuit board 3 to realize real-time temperature monitoring and current control. The multi-layer structure design can effectively transfer coldness while protecting the skin from low temperature damage. During the assembly process of the treatment part 2 and the handheld part 1, the refrigeration device 9 is pressed on the heat conductive sheet 201. Through the cooperation of the temperature sensor 207 and the circuit board 3, the temperature of the treatment area can be accurately controlled to ensure safe and effective treatment.

[0059] The side of the connecting part 5 that contacts the treatment part 2 is an inclined surface, and the other side of the connecting part 5 is a vertical surface. The connecting part 5 has an inclined surface and a vertical surface. The inclined surface facilitates installation and disassembly, and the vertical surface ensures structural stability. The lower and upper parts of the inclined surface of the connecting part 5 are provided with a groove body 502, and a plurality of evenly arranged power pins 503 are provided in the groove body 502. The power pins 503 are electrically connected to the electrode point 208 through the treatment part 2, ensuring the transmission of electrical signals. The connecting part 5 has installation grooves 504 symmetrically provided on both sides, and a support column 501 is provided in the installation groove 504. A limit device 8 is installed on the support column 501 through a spring. The limiting device 8 includes a button 801 and a limiting rod 802. The limiting rod 802 is provided with a button 801. By pressing the button 801, the limiting rod 802 moves up and down along the direction of the support column 501. The limiting rod 802 is clamped with the shell. The inner wall of the shell is provided with slots 204 on both sides. The slots 204 cooperate with the limiting rod in the limiting device 8.

[0060] The side of the connecting portion 5 that contacts the treatment portion 2 is an inclined surface. This design makes it easier to insert or remove the treatment portion 2 from the connecting portion 5, provides a convenient guide surface, and simplifies the assembly and disassembly process. The other side of the connecting portion 5 is a vertical surface, which provides a stable support surface to ensure that the connection between the treatment portion 2 and the handheld portion 1 is stable and prevent accidental falling off during use.

[0061] The connection surface between the volatilization device 9 and the first delivery pipe 7 is provided with a delivery port 901, which is the entrance for the cold medium to enter the volatilization device. The volatilization device 9 is evenly provided with a plurality of volatilization holes 902 around it, which penetrate the side of the volatilization device 9 and are connected to the delivery port 901. These holes penetrate the side of the volatilization device 9 and are connected to the delivery port 901, forming a flow path for the cold medium.

[0062] The shell is provided with a plurality of evenly arranged volatilization ports 203 on both sides, and the air ducts in the volatilization ports 203 are tilted downward, which is conducive to the uniform distribution of the refrigerant. The volatilization ports 203 correspond to the volatilization holes 203 on one side of the refrigeration device 9, ensuring that the refrigerant can flow directly from the volatilization holes 203 to the volatilization ports 203. The inner side of the shell is provided with a baffle 205 corresponding to the volatilization holes 203 on the other side of the refrigeration device 9. The baffle 205 is used to guide the refrigerant to flow to the correct volatilization ports 203.

[0063] A temperature insulating layer 6 is provided between the connecting portion and the hand-held portion. Since a temperature insulating layer is provided between the connecting portion and the hand-held portion, the influence of temperature on the circuit board can be reduced, and the durability and stability of the device can be improved.

[0064] A beauty instrument temperature control system is applied to the beauty instrument handle, comprising a control unit 12, a temperature signal acquisition unit 13, and a refrigeration unit 11, wherein the control unit 12 is electrically connected to the temperature signal acquisition unit 13 and the refrigeration unit 11.

[0065] The control unit 12 includes a circuit board 3 and a controller 14 mounted on the circuit board 3 .

[0066] The temperature signal acquisition unit 13 includes a plurality of temperature sensors 207 , and the temperature sensors 207 are electrically connected to the controller 14 .

[0067] The refrigeration unit 11 includes a refrigerant medium conveying device, a first conveying pipeline 7 , a second conveying pipeline 4 , a volatilization device 9 , a refrigeration plate 10 , and a heat conducting plate 201 . The refrigerant medium conveying device is electrically connected to the controller 14 .

[0068] Among them, the refrigerant medium conveying device accurately adjusts the speed of the plunger pump and the opening of the pressure regulating valve according to the instructions of the controller 14. When the temperature of the treatment sheet 206 fed back by the temperature sensor 207 is higher than the set upper limit, the controller increases the delivery flow of the refrigerant medium and appropriately increases the pressure to accelerate the volatilization speed of the refrigerant in the volatilization device and enhance the cooling effect. On the contrary, when the temperature is lower than the set lower limit, the refrigerant delivery flow and pressure are reduced to maintain the stability of the treatment temperature. During the whole process, the pressure change in the delivery pipeline is monitored in real time by the pressure sensor, and the pressure data is fed back to the controller to form a closed-loop control to ensure that the refrigerant delivery pressure is always within a safe and effective range.

[0069] Among them, temperature control and feedback adopt a combination of PID control algorithm and fuzzy control algorithm. The PID control algorithm calculates the correction value of the cold medium delivery amount and the radio frequency energy output according to parameters such as temperature deviation and deviation change rate, ensuring that the system can respond quickly to temperature changes. The fuzzy control algorithm makes intelligent judgments on complex working conditions during the treatment process, such as the impact of factors such as skin type, treatment site, and ambient temperature on temperature control, and dynamically adjusts the parameters of the PID control algorithm to improve the adaptability and accuracy of temperature control. Through this composite control algorithm, the treatment temperature can be kept stable under different treatment conditions, effectively improving the effect and safety of cosmetic treatment.

[0070] Working process of the present invention:

[0071] 1. Power supply and circuit control: The user operates the handheld part 1, which is provided with a circuit board 3, on which a controller 14 is mounted. The controller 14 is electrically connected to the electrode point 208 in the treatment part 2 through the power pin 503 to achieve control of the radio frequency energy.

[0072] 2. Refrigerant delivery and volatilization: The refrigerant such as liquid nitrogen is stored in a container and delivered to the volatilization device 9 through the refrigerant delivery device. In the volatilization device 9, the refrigerant enters through the delivery port 901 and volatilizes under the action of the volatilization material such as the graphene heat conductive block, and emits cold air through the volatilization hole 902 to cool the hot surface of the refrigeration plate 10.

[0073] 3. Treatment part in contact with skin: The treatment part 2 is detachably connected to the handheld part 1 through the connection part 5, which is convenient for replacement or cleaning. The treatment part 2 includes a housing, a cooling sheet 10, a heat conducting sheet 201, a treatment sheet 206 and a protective film 202. The treatment sheet 206 is provided with a temperature sensor 207 and an electrode point 208, which are connected to the circuit board 3 to achieve temperature monitoring and radio frequency energy transmission.

[0074] 4. Temperature control and feedback: The temperature sensor 207 monitors the temperature of the treatment sheet 206 and transmits a signal to the controller 14. The controller 14 adjusts the delivery of the cold medium and the output of the radio frequency energy according to the temperature signal to maintain a constant treatment temperature.

[0075] 5. Distribution of cooling effect: The volatilization holes 902 of the volatilization device 9 correspond to the volatilization ports 203 on both sides of the housing, and the cold air is evenly distributed to the skin surface through the volatilization ports 203. The baffle 205 on the inner side of the housing guides the cold air to the correct volatilization ports to prevent the cold air from directly impacting the skin.

[0076] 6. Safety and stability: The limiting device 8 of the connecting part 5 ensures that the treatment part 2 is correctly installed in place to prevent the treatment part from falling off during use. A thermal insulation layer 6 is provided between the connecting part 5 and the handheld part 1 to protect the circuit board 3 from being affected by low temperatures.

[0077] The standard parts used in the present invention can all be purchased from the market, and special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the prior art. Machinery, parts and equipment all adopt conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be described in detail here. The content not described in detail in this specification belongs to the prior art known to professional and technical personnel in this field.

[0078] The present invention and its embodiments are described above, and such description is not restrictive. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if ordinary technicians in the field are inspired by it, without departing from the purpose of the invention, they can design a structure and embodiment similar to the technical solution without creativity, which should belong to the protection scope of the present invention.

Claims

1. A beauty instrument handle with a cooling function, comprising a handheld portion (1), wherein a circuit board (3) is provided inside the handheld portion (1), characterized in that: The handheld portion (1) is detachably connected to the treatment portion (2); a connecting portion (5) is provided at one end of the handheld portion (1); a first delivery pipeline (7) runs through the middle of the connecting portion (5); an end of the first delivery pipeline (7) close to the handheld portion (1) is detachably connected to a second delivery pipeline (4); and the other end is connected to a volatilization device (9); the second delivery pipeline (4) is connected to a cold medium delivery device; the first delivery pipeline (7) and the second delivery pipeline (4) are both used to transport cold medium; The treatment part (2) is detachably connected to the handheld part (1) via a connecting part (5); The treatment part (2) comprises a shell, in which a cooling sheet (10), a heat conducting sheet (201), a treatment sheet (206), and a protective film (202) are sequentially arranged; The treatment sheet (206) is provided with a plurality of temperature sensors (207) and a plurality of electrode points (208); the circuit board (3) is connected to the temperature sensors (207) and the electrode points (208) respectively; During the assembly process of the treatment part (2) and the handheld part (1), the cooling device (9) is pressed onto the heat conducting sheet (201).

2. According to claim 1, a beauty instrument handle with cooling function, characterized in that: The side of the connecting portion (5) in contact with the treatment portion (2) is an inclined surface, and the other side of the connecting portion (5) is a vertical surface. The lower and upper parts of the inclined side of the connecting portion (5) are provided with a groove body (502), and a plurality of evenly arranged power plug pins (503) are provided in the groove body (502). The power plug pins (503) are electrically connected to the electrode point (208) through the treatment portion (2). The connecting portion (5) is symmetrically provided with mounting grooves (504) on both sides, and a support column (501) is provided in the mounting groove (504). A limit device (8) is installed on the support column (501) via a spring.

3. According to claim 2, a beauty instrument handle with cooling function, characterized in that: The limiting device (8) comprises a button (801) and a limiting rod (802); the limiting rod (802) is provided with a button (801); when the button (801) is pressed, the limiting rod (802) moves up and down along the direction of the support column (501); the limiting rod (802) is engaged with the outer shell; and slots (204) are provided on both sides of the inner wall of the outer shell; the slots (204) cooperate with the limiting rod in the limiting device (8).

4. According to claim 1, a beauty instrument handle with cooling function, characterized in that: A delivery port (901) is provided on the connection surface between the volatilization device (9) and the first delivery pipe (7), and a plurality of volatilization holes (902) are evenly provided around the volatilization device (9). The volatilization holes (902) penetrate the side of the volatilization device (9) and are connected to the delivery port (901).

5. A beauty instrument handle with cooling function according to any one of claims 1 or 4, characterized in that: The volatilization device (9) comprises a low-temperature resistant volatilization material for volatilizing the cold medium.

6. The beauty instrument handle with cooling function according to claim 5, characterized in that: The volatile material is a graphene heat conducting block.

7. The beauty instrument handle with cooling function according to claim 1, characterized in that: A plurality of evenly arranged volatilization ports (203) are provided on both sides of the shell, the air ducts in the volatilization ports (203) are inclined downward, the volatilization ports (203) correspond to the volatilization holes (203) on one side of the refrigeration device (9), and a baffle (205) corresponding to the volatilization holes (203) on the other side of the refrigeration device (9) is provided on the inner side of the shell.

8. The beauty instrument handle with cooling function according to claim 1, characterized in that: The cold medium includes liquid nitrogen.

9. The beauty instrument handle with cooling function according to claim 1, characterized in that: A temperature insulation layer (6) is provided between the connecting portion and the hand-held portion.

10. A beauty instrument temperature control system, characterized in that: The beauty instrument handle according to any one of claims 1 to 9 comprises a control unit (12), a temperature signal acquisition unit (13), and a refrigeration unit (11), wherein the control unit (12) is electrically connected to the temperature signal acquisition unit (13) and the refrigeration unit (11); The control unit (12) comprises a circuit board (3) and a controller (14) mounted on the circuit board (3); The temperature signal acquisition unit (13) comprises a plurality of temperature sensors (207), and the temperature sensors (207) are electrically connected to the controller (14); The refrigeration unit (11) comprises a cold medium conveying device, a first conveying pipeline (7), a second conveying pipeline (4), a volatilization device (9), a refrigeration plate (10), and a heat conducting plate (201); the cold medium conveying device is electrically connected to a controller (14).

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