Portable palm negative pressure cooling glove and control method thereof

Abstract

The invention relates to the technical field of hand protection and temperature control, and discloses a portable palm negative pressure cooling glove and a control method thereof.The portable palm negative pressure cooling glove comprises a glove body, a negative pressure sealing assembly, a simplified refrigeration assembly, a control power supply assembly, a miniature vacuum pump and a miniature electromagnetic valve. In cooperation with active cooling of a semiconductor chilling plate, the heat dissipation efficiency of circulating blood is remarkably improved, the core temperature of the human body is continuously reduced, sealing protection of the palm is achieved, and invasion of external impurities is avoided; a distributed air pressure and temperature sensor and an LED display screen are adopted, the pressure and temperature of all areas of the palm can be monitored in real time, negative pressure and cooling parameters are adjusted according to actual requirements, and use convenience is improved; the fingers of the glove body are made of chloroprene rubber, the surface of the glove body is made of wear-resistant breathable fabric, flexibility, sealing performance, wear resistance and breathability are all considered, and the glove is comfortable to wear and long in service life.

Description

Technical Field

[0001] This invention relates to the field of hand protection and temperature control technology, specifically to a portable palm negative pressure cooling glove and its control method. Background Technology

[0002] Studies have shown that elevated core body temperature in high-temperature environments or during high-intensity exercise is a major cause of fatigue, cognitive decline, and even heatstroke. There are two types of blood vessels on the surface of human skin: ordinary capillaries and arteriovenous anastomoses (AVAs). AVAs are mainly distributed in hairless areas such as the palms, soles, and face. They are direct channels connecting arterioles and venules and have a very high capacity for regulating blood flow.

[0003] Research from Stanford University confirms that cooling the arteriovenous vessels (AVA) in the palm area allows cooled blood to rapidly return to the heart and core areas of the body, thus achieving highly efficient core cooling. Experimental data shows that applying a local negative pressure of 35-45 mmHg to the entire hand can significantly prevent vasoconstriction in the AVA vessels when exposed to cold, thereby maintaining blood circulation. Combined with a heat dissipation surface of 18-22°C, its core cooling efficiency is far superior to whole-body spraying or ice packs.

[0004] Currently, hand protection and cooling solutions on the market mainly suffer from the following three major drawbacks: Passive cooling is uncontrollable: Existing cooling gloves mostly use passive media such as ice packs and cooling gels. These methods have short cooling durations, and the temperature fluctuates drastically over time. Furthermore, the extremely low initial temperature (around 0 degrees Celsius) can easily trigger AVA vascular closure, which in turn hinders heat exchange efficiency.

[0005] Lack of negative pressure support: Ordinary protective gloves only have basic protective functions and lack a negative pressure sealing structure. Without negative pressure, blood flow to the cold area will decrease due to vasoconstriction, causing the cooling effect to remain only on the skin surface and fail to reach the core circulatory system.

[0006] Lack of monitoring and feedback: Existing technology lacks real-time pressure and temperature monitoring methods, making it impossible for users to accurately know the actual heat dissipation status of different areas of the palm. This results in cooling parameters not being able to be dynamically adjusted according to individual differences (such as palm size and basal body temperature), leading to the risk of frostbite or insufficient cooling.

[0007] Conflict between sealing and flexibility: Traditional sealing equipment is often bulky and it is difficult to balance the wear resistance and operational flexibility required for industrial operations, resulting in poor practicality in high-intensity operation scenarios such as metallurgy and machining.

[0008] In conclusion, developing a hand-cooling glove that can provide a stable negative pressure sealing environment, achieve active temperature control and real-time monitoring, and is comfortable to wear is of great practical significance for high-temperature work protection and improvement of athletic performance. Summary of the Invention

[0009] The purpose of this invention is to overcome the shortcomings of the aforementioned technologies.

[0010] The technical solution provided by this invention is: a portable palm negative pressure cooling glove and its control method, comprising: Glove body: The negative pressure sealing assembly, located on the back of the hand of the glove body, consists of a silicone negative pressure airbag, a one-way air inlet valve, and a one-way air outlet valve; The simplified cooling component, located on the main body of the glove, consists of a semiconductor cooling chip and heat dissipation fins; The power supply control component is located on the palm side of the glove body and consists of an LED display, a low-power microcontroller, a distributed barometric temperature sensor, and a button lithium battery. A miniature vacuum pump is located in the wrist area of ​​the glove body; Miniature solenoid valves are connected to one-way inlet valves and one-way outlet valves respectively, and are also connected to a miniature vacuum pump. Both the miniature solenoid valve and the miniature vacuum pump are electrically connected to a low-power microcontroller.

[0011] Furthermore, this application also proposes that a silicone negative pressure airbag is disposed inside the glove body, and a one-way air inlet valve and a one-way air outlet valve are disposed on one side of the back surface of the hand and are respectively connected to the silicone negative pressure airbag.

[0012] Furthermore, this application also proposes that the semiconductor cooling chip is disposed in the center of the palm and has a heat dissipation copper fin on it; The heat dissipation fins are located on the back of the hand, at the wrist.

[0013] Furthermore, this application also proposes that the LED display screen be positioned on the palm side of the wrist; Distributed barometric temperature sensors are located on various parts of the palm. The low-power microcontroller is located at the bottom of the LED display screen and is electrically connected to both the distributed pressure and temperature sensors and the LED display screen. The LED display screen is used to display pressure and temperature. The button lithium battery is located in the battery compartment at the bottom of the LED display screen and provides power.

[0014] Furthermore, this application also proposes that the main body of the glove is made of neoprene rubber for the fingers, with pleats at the knuckles to facilitate finger movement, and the main body of the glove is made of wear-resistant and breathable fabric.

[0015] Furthermore, this application also proposes that the silicone negative pressure airbag is a medical-grade silicone airbag.

[0016] Furthermore, this application also proposes that the back of the hand has three longitudinal heat dissipation channels connected to heat dissipation fins to increase heat dissipation.

[0017] Furthermore, this application also proposes that the control method includes the following steps: S1: After wearing gloves, a micro vacuum pump and a micro solenoid valve work together to evacuate the silicone negative pressure airbag and create a negative pressure environment in the palm area. S2: Real-time monitoring of palm surface pressure via distributed pressure and temperature sensors; low-power microcontroller controls micro vacuum pump and micro solenoid valve according to preset pressure range to achieve dynamic adjustment and stabilization of negative pressure. S3: After the negative pressure environment is established, the semiconductor cooling chip is activated, and the cooling energy is conducted to the palm area through the heat dissipation copper plate; S4: Real-time monitoring of palm surface temperature via distributed barometric temperature sensors; low-power microcontroller adjusts the power of semiconductor cooling chip according to preset temperature range. S5: The LED display shows pressure, temperature and battery level information in real time, and provides early warning prompts in abnormal situations.

[0018] Furthermore, this application also proposes that in step S2, a low-power microcontroller uses a PID control algorithm to perform closed-loop control on the micro vacuum pump and the micro solenoid valve to maintain the negative pressure within the target range.

[0019] Furthermore, this application also proposes that in step S4, the low-power microcontroller adjusts the power of the semiconductor cooling chip in different zones based on the multi-point temperature data from the distributed air pressure and temperature sensor to achieve uniform cooling.

[0020] The advantages of this invention compared with the prior art are as follows: by applying local negative pressure through the negative pressure sealing component, the blood flow of the arteriovenous anastomosis in the palm is increased. Combined with the active cooling of the semiconductor cooling chip, the heat dissipation efficiency of circulating blood is significantly improved, the core temperature of the human body is rapidly reduced, and the palm is sealed and protected to prevent the intrusion of external impurities. The active cooling using the semiconductor cooling chip provides a stable cooling effect with a long duration, meeting the usage requirements of high-temperature environments or special scenarios. Employing distributed pressure and temperature sensors and an LED display, it can monitor the pressure and temperature of different areas of the palm in real time and adjust the negative pressure and cooling parameters according to actual needs, improving ease of use; The main body of the gloves is made of neoprene rubber for the fingers, and the surface is made of wear-resistant and breathable fabric, which combines flexibility, sealing, wear resistance and breathability, making them comfortable to wear and long-lasting. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the back of the hand of a portable palm negative pressure cooling glove and its control method according to the present invention; Figure 2 This is a schematic diagram of the palm side of a portable palm negative pressure cooling glove and its control method according to the present invention; Figure 3 This is a schematic diagram of the lower end of the LED display screen of a portable palm negative pressure cooling glove and its control method according to the present invention; Figure 4 This is a flowchart of the control system of a portable palm negative pressure cooling glove and its control method according to the present invention.

[0022] As shown in the figure: 1. Glove body; 2. Copper heat sink; 3. Distributed air pressure and temperature sensor; 4. Button lithium battery; 5. LED display; 7. Semiconductor cooling chip; 8. Silicone negative pressure airbag; 9. One-way air intake valve; 10. Heat sink fins; 11. Longitudinal heat dissipation channel; 12. One-way air release valve; 13. Low power microcontroller; 14. Back of hand; 15. Palm. Detailed Implementation

[0023] The technical solutions of this application will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are merely some embodiments of this application, and not all embodiments. The components of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0024] It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. Furthermore, in the description of this application, terms such as "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0025] Traditional hand protection and cooling solutions mostly use passive cooling media, which suffer from short cooling duration, large and uncontrollable temperature fluctuations, and are prone to triggering vasoconstriction, affecting heat exchange efficiency. At the same time, these solutions lack negative pressure assistance mechanisms, making it difficult for the cooling effect to reach the core circulatory system, and lack real-time monitoring and feedback, making it impossible to dynamically adjust cooling parameters, thus posing a risk of frostbite or insufficient cooling.

[0026] In response, this application proposes a portable palm negative pressure cooling glove and its control method.

[0027] The present invention will now be described in further detail with reference to the accompanying drawings.

[0028] like Figures 1 to 4 As shown, a portable palm negative pressure cooling glove and its control method include: Glove body 1: The negative pressure sealing assembly, located on the back of the hand 14 of the glove body 1, consists of a silicone negative pressure airbag 8, a one-way air inlet valve 9, and a one-way air outlet valve 12. A simplified cooling component is located on the glove body 1 and consists of a semiconductor cooling chip 7 and heat dissipation fins 10. The control power supply component is located on the palm side 15 of the glove body 1 and consists of an LED display 5, a low-power microcontroller 13, a distributed air pressure and temperature sensor 3, and a button lithium battery 4. A miniature vacuum pump is installed in the wrist area of ​​the glove body 1; Miniature solenoid valves are connected to one-way inlet valve 9 and one-way vent valve 12 respectively, and are connected to a miniature vacuum pump; The miniature solenoid valve and the miniature vacuum pump are both electrically connected to the low-power microcontroller 13.

[0029] The glove body is made of synthetic fiber material to provide basic wearing comfort and support for internal components; its structure can be designed as a one-piece molding or multi-piece stitching to accommodate different hand shapes.

[0030] The negative pressure sealing assembly is located on the back of the hand 14 of the glove body 1. The assembly consists of an inflatable flexible airbag as a silicone negative pressure airbag 8, and two simple valves as a one-way air inlet valve 9 and a one-way air outlet valve 12. These valves are spring-loaded ball valves or diaphragm valves to control the one-way flow of gas.

[0031] The simplified cooling assembly is located on the glove body 1. The semiconductor cooling chip 7 is placed on the inner surface of the glove body 1. The heat dissipation fin 10 is a simple metal sheet or a group of parallel metal sheets, which is connected to the hot end of the semiconductor cooling chip 7 by thermal adhesive or screws and exposed to the outside of the glove for natural convection heat dissipation.

[0032] The control power supply component is located on the palm side 15 of the glove body 1. The LED display 5 is a small segment code screen or dot matrix screen used to display basic information. The low-power microcontroller 13 is a microcontroller chip that is connected to each component through wires. The distributed air pressure and temperature sensor 3 consists of several independent pressure and temperature sensors and is connected to the microcontroller through wires. The button lithium battery 4 is placed in a simple battery slot and supplies power to the system through contacts.

[0033] A miniature vacuum pump is located in the wrist area of ​​the glove body 1. This vacuum pump is a small diaphragm pump or piston pump, which is connected to the negative pressure sealing assembly via a hose. It is secured to the wrist by sewing a pocket or using Velcro.

[0034] Miniature solenoid valves are connected to one-way inlet valve 9 and one-way outlet valve 12 respectively, and are connected to a miniature vacuum pump. These solenoid valves are small two-way or three-way valves, which are connected to the corresponding valves and vacuum pumps through hoses. The vacuum pump's suction port is connected to the two solenoid valves through a simple pipeline branch, and the solenoid valves control the connection with the inlet valve and outlet valve respectively.

[0035] Both the miniature solenoid valve and the miniature vacuum pump are electrically connected to the low-power microcontroller 13 via wires. The power and control lines of the solenoid valve and the vacuum pump are directly connected to the corresponding pins of the low-power microcontroller 13, and the microcontroller outputs control signals to drive them to work.

[0036] This application overcomes the limitations of existing technologies, such as uncontrollable passive cooling, lack of negative pressure assistance, and missing monitoring and feedback, by integrating a negative pressure sealing component, simplifying the cooling component, and controlling the power supply component. This glove can establish and maintain a negative pressure environment in the palm area, effectively preventing blood vessel constriction, while achieving active and controllable cooling and providing real-time monitoring and feedback. This enables efficient and safe core cooling in high-temperature work or high-intensity sports scenarios, improving work protection and athletic performance.

[0037] The silicone negative pressure airbag 8 is installed inside the glove body 1, and the one-way air inlet valve 9 and the one-way air outlet valve 12 are installed on one side of the back of the hand 14 and are respectively connected to the silicone negative pressure airbag 8.

[0038] The silicone negative pressure airbag 8 is a core component used to create a negative pressure environment in the palm area. It is made of medical-grade silicone material and has good flexibility, biocompatibility and sealing properties. It is set inside the glove body 1. The airbag 8 can be fixed in a specific position of the glove body 1 by reserving a cavity in the lining of the glove body 1 to match the shape of the airbag, or by using heat pressing, sewing and other processes. The internal embedded design helps to protect the airbag 8 from external physical damage, while ensuring that the airbag 8 can fit tightly to the palm surface and improve wearing comfort.

[0039] One-way air intake valve 9 and one-way air release valve 12 are key components for negative pressure regulation. They are used to control the entry of external air into airbag 8 and the discharge of air from airbag 8, respectively. These two valve bodies are set on one side of the surface of the back of the hand 14. The valve bodies 9 and 12 are embedded into the material of the back of the hand 14, making them flush with or slightly protruding from the surface, or they are fixed to the outside of the back of the hand 14 by a special mounting bracket. The external setting makes it convenient for users to operate and maintain intuitively, while avoiding the valve bodies from interfering with the comfort of the palm or hand movements inside the glove.

[0040] The connection between the one-way inlet valve 9 and the one-way outlet valve 12 and the silicone negative pressure airbag 8 is usually achieved through flexible conduits or integrally molded air channels. These conduits or air channels should have good airtightness and flexibility to adapt to hand movements and can be laid along the inside or interlayer of the glove body 1 to avoid exposure. This ensures that when the micro vacuum pump pumps air into or out of the airbag 8 through the micro solenoid valve, the gas can smoothly enter and exit the airbag 8, thereby achieving precise control of the negative pressure environment.

[0041] This application places the silicone negative pressure airbag 8 inside the glove body 1, allowing it to fit snugly against the palm. This not only protects the airbag 8 from external damage but also improves the comfort and overall aesthetics of the glove. Simultaneously, the one-way inlet valve 9 and one-way outlet valve 12 are positioned on one side of the back of the hand 14, enabling convenient operation and maintenance by the user. This avoids the valves interfering with palm movement inside the glove, thus optimizing the integration of the negative pressure sealing components and the user experience. It ensures the stable establishment and regulation of the negative pressure environment while maintaining the glove's thinness and flexibility, providing users with a more comfortable and convenient cooling experience.

[0042] The semiconductor cooling chip 7 is located in the middle of the palm side 15, and a heat dissipation copper plate 2 is provided on it; The heat dissipation fins 10 are located on the back of the hand 14 at the wrist.

[0043] The thermoelectric cooler 7 is a device that achieves cooling based on the Peltier effect. When current passes through a PN junction composed of two different semiconductor materials, one end absorbs heat and becomes cold, while the other end releases heat and becomes hot. It is positioned in the center of the palm side 15 so that its cold end directly and closely contacts the palm area of ​​the user's hand, maximizing the efficiency of heat transfer to the palm. The heat dissipation copper sheet 2 is a metal sheet with high thermal conductivity, made of pure copper. Positioned at the cold end of the thermoelectric cooler 7 and in close contact with the palm side 15, it acts as a heat transfer medium, quickly and evenly transferring the cold energy generated by the thermoelectric cooler 7 to the palm surface, avoiding localized overcooling or uneven heat distribution. This improves the comfort and efficiency of cooling. The heat dissipation fins 10 are devices that enhance heat dissipation efficiency by increasing the surface area. They are usually composed of multiple thin metal sheets that carry away heat through air convection. They are located on the back of the hand 14 at the wrist because the wrist area has more space than other parts of the palm, and the skin in this area is less sensitive to temperature changes, which facilitates effective heat dissipation. This helps to conduct the heat generated by the semiconductor cooling chip 7 during operation to the heat dissipation fins through its hot end and release it to the external environment quickly, avoiding heat accumulation inside the glove, thereby maintaining the good working condition of the semiconductor cooling chip 7 and preventing heat backflow from affecting the cooling effect on the palm.

[0044] This application precisely positions the thermoelectric cooler 7 and its heat dissipation copper fins 2 in the center of the palm side 15, ensuring that the cooling energy generated by the thermoelectric cooler 7 is directly and efficiently transferred to the core area of ​​the palm, achieving rapid cooling of the palm. At the same time, the heat dissipation fins 10 are arranged on the back of the hand 14 at the wrist, utilizing the relatively large space of the wrist and the heat dissipation conditions of the back of the hand to effectively dissipate the heat generated by the thermoelectric cooler 7 during operation, preventing heat from accumulating inside the glove or being transferred back to the palm, thereby significantly improving the durability and stability of the cooling effect and enhancing wearing comfort. The separation of cold and heat makes the cooling process more efficient and imperceptible to the user, effectively solving the problems of insufficient cold energy transfer efficiency and insufficient heat dissipation.

[0045] LED display screen 5 is set on the palm side 15 of the wrist; Distributed barometric temperature sensors 3 are located on various parts of the palm 15; The low-power microcontroller 13 is located at the lower end of the LED display screen 5 and is electrically connected to the distributed air pressure and temperature sensor 3 and the LED display screen 5 respectively. The LED display screen 5 is used to display pressure and temperature. The button lithium battery 4 is located in the battery compartment at the bottom of the LED display screen 5 and provides power.

[0046] The LED display screen 5 serves as the human-machine interface, employing a small, low-power display module located in the wrist area of ​​the glove body 1's palm side 15. This allows the wearer to intuitively view the glove's operating status and key data without affecting hand movement. The distributed barometric pressure and temperature sensor 3 is a miniaturized MEMS sensor capable of real-time, multi-point acquisition of barometric pressure and temperature data from different areas of the palm. Its distributed layout allows for the acquisition of more refined and comprehensive physiological parameters of the palm, providing a reliable basis for precise control of negative pressure and cooling. The low-power microcontroller 13, as the core controller of the system, receives, processes, and analyzes the data collected by the distributed barometric pressure and temperature sensor 3, and drives the LED display screen 5 to display pressure and temperature information. Its low power consumption helps extend the glove's battery life. The button lithium battery 4, due to its small size and moderate energy density, is ideally integrated into the wrist area of ​​the glove body 1, tightly integrated with the control and display modules to form a compact power solution.

[0047] This application cleverly places the LED display 5 on the wrist of the palm side 15, allowing users to conveniently and intuitively view real-time pressure and temperature data while wearing gloves, greatly improving operational convenience. Simultaneously, the precise layout of the distributed barometric pressure and temperature sensors 3 across the palm ensures the comprehensiveness and accuracy of palm surface pressure and temperature data. The tight electrical connection between the low-power microcontroller 13, the LED display 5, and the distributed barometric pressure and temperature sensors 3 enables data acquisition, processing, and display, improving the system's response speed and control precision. The layout of the button lithium battery 4 with the LED display 5 and the low-power microcontroller 13 optimizes the internal space utilization of the glove, making the overall structure more compact and portable, while ensuring the power supply required for long-term stable system operation. This solves the challenges of user interaction, data monitoring, and power management in portable wearable devices, significantly improving the glove's practicality and user experience.

[0048] The main body of the glove 1 is made of neoprene rubber for the fingers, with pleats at the knuckles to facilitate finger movement, and the surface of the main body of the glove 1 is made of wear-resistant and breathable fabric.

[0049] Neoprene rubber is a synthetic rubber characterized by its excellent flexibility, abrasion resistance, weather resistance, and certain heat retention properties. When applied to the fingers of the glove body 1, it ensures that the glove provides necessary support and protection while maintaining finger flexibility. The elasticity of neoprene rubber allows the glove to better conform to the finger shapes of different users, reducing the feeling of restriction when wearing it. At the same time, its inherent durability also effectively extends the service life of the glove.

[0050] The pleated treatment refers to the design of a stretchable or foldable structure in the knuckle area of ​​the glove body 1; when the user's fingers bend, the pleated structure can unfold accordingly, thereby effectively increasing the material allowance in the knuckle area, avoiding excessive tensile stress on the material at the joint, and reducing the obstruction to finger movement; it greatly improves the wearing comfort and operational flexibility of the gloves, allowing the user's fingers to bend and extend naturally and smoothly when wearing gloves for daily activities or operations.

[0051] Abrasion resistance ensures that the gloves are not easily damaged during long-term use or friction with external objects, thus extending the product's lifespan; breathability allows moisture and heat inside the gloves to escape in time, preventing the hands from feeling stuffy and sweaty due to prolonged wear, thus keeping the hands dry and comfortable.

[0052] This application designs the finger area of ​​the glove body 1 to be made of neoprene rubber, and adds pleats to the knuckles, greatly improving the glove's flexibility and the ease of finger movement. The combination of the elasticity of neoprene rubber and the pleated structure allows the user's fingers to bend and extend freely when wearing the glove, avoiding the stiffness and restriction that traditional gloves may cause, thus ensuring the effective implementation of the negative pressure cooling function of the palm, without affecting the user's fine operation. The surface of the glove body 1 is made of wear-resistant and breathable fabric, which enhances the glove's durability and effectively resists daily wear and tear. The good breathability can promptly expel moisture and heat generated during wearing, keeping the hands dry and comfortable, improving the user's experience of wearing for a long time. This makes the entire portable palm negative pressure cooling glove achieve its core function while taking into account wearing comfort, flexibility, and durability.

[0053] The silicone negative pressure airbag 8 is a medical-grade silicone airbag.

[0054] This application designs the silicone negative pressure airbag 8 as medical grade, ensuring safety and comfort when wearing it. The silicone negative pressure airbag 8 has a hollow design and adopts a sealed negative pressure skin-fitting mode, thereby ensuring that the cold energy generated by the semiconductor cooling chip 7 can be more efficiently and evenly conducted to the palm area through the heat dissipation copper plate 2, significantly improving the cooling effect and wearing comfort. The highly tear-resistant support column design greatly enhances the structural stability of the silicone negative pressure airbag 8, extends its service life, and improves the overall reliability of the portable palm negative pressure cooling glove.

[0055] Three vertical heat dissipation channels 11 are provided on the back of the hand 14 and are connected to the heat dissipation fins 10 to increase heat dissipation.

[0056] The heat dissipation channel 11 increases the contact area and convective heat transfer efficiency between the heat dissipation fins 10 and the outside air, enabling the heat generated by the thermoelectric cooler 7 during operation to be dissipated from the inside of the glove more quickly and effectively. This improves the overall cooling performance of the simplified cooling components, ensuring that the palm area can reach and maintain the required low temperature. It helps maintain the thermoelectric cooler 7 in stable operation within the optimal operating temperature range, avoiding the reduction in cooling effect, increased energy consumption, or component overheating caused by heat accumulation, thereby extending the service life of the equipment and improving the user experience.

[0057] The control method includes the following steps: S1: After wearing gloves, the silicone negative pressure airbag 8 is evacuated by a micro vacuum pump and a micro solenoid valve to create a negative pressure environment in the palm area. The micro vacuum pump is responsible for evacuating the air from the silicone negative pressure airbag 8, reducing its internal pressure, and making it generate a slight suction force on the palm surface. The micro solenoid valve acts as an air circuit switch to precisely control the opening and closing of the air extraction path, ensuring the effective formation of the negative pressure environment. The micro vacuum pump can be a small-sized, low-power diaphragm pump or piston pump, while the micro solenoid valve can be a normally open or normally closed solenoid valve with a fast response speed to achieve precise control of airflow.

[0058] S2: The distributed pressure and temperature sensor 3 monitors the pressure on the palm surface in real time. The low-power microcontroller 13 controls the micro vacuum pump and micro solenoid valve according to the preset pressure range of 35-45 mmHg to achieve dynamic adjustment and stabilization of negative pressure. This closed-loop control mechanism can ensure that the negative pressure in the palm area is always maintained within the target range, avoiding discomfort or poor effect caused by excessively high or low pressure. The distributed pressure and temperature sensor 3 can be a high-precision MEMS pressure sensor and can be arranged at multiple points to obtain more comprehensive pressure distribution information.

[0059] S3: After establishing a negative pressure environment, the thermoelectric cooler 7 is activated, transferring coolness to the palm area via the heat sink 2. Upon power-up, the cold end of the thermoelectric cooler 7 rapidly generates coolness. This coolness is efficiently transferred to the palm area through the tightly fitted heat sink 2, thus initiating localized cooling. The heat sink 2 possesses excellent thermal conductivity, enabling it to evenly and rapidly distribute the coolness generated by the thermoelectric cooler 7 across the entire palm area, ensuring uniform cooling performance.

[0060] S4: The distributed barometric pressure temperature sensor 3 monitors the palm surface temperature in real time. The low-power microcontroller 13 adjusts the power of the semiconductor cooling chip 7 according to the preset temperature range of 18-22℃. When the palm temperature is higher than the preset range, the microcontroller 13 increases the power of the semiconductor cooling chip 7 to enhance the cooling effect. Conversely, when the temperature is lower than the preset range, it reduces the power to maintain the target temperature. This ensures the stability and comfort of the palm temperature and avoids excessive or insufficient cooling. The temperature sensing part of the distributed barometric pressure temperature sensor 3 uses a high-sensitivity thermistor.

[0061] S5: The LED display screen 5 displays pressure, temperature, and battery power information in real time and provides early warning prompts in abnormal situations. Users can intuitively understand the working status of the gloves through the LED display screen 5. When the system detects abnormal situations such as pressure or temperature exceeding the safety threshold or low battery power, the LED display screen 5 will provide timely visual early warning prompts to remind users to pay attention and take appropriate measures, thereby effectively ensuring the safety and convenience of use. The LED display screen 5 can be a low-power segment screen or a small dot matrix screen.

[0062] This application, through the aforementioned steps, utilizes a distributed pressure-temperature sensor 3 to monitor the pressure on the palm surface in real time. A low-power microcontroller 13 precisely controls a micro-vacuum pump and a micro-solenoid valve according to a preset range, achieving dynamic adjustment and stabilization of the negative pressure environment. This avoids discomfort or adverse effects on the treatment outcome caused by pressure fluctuations. Simultaneously, after negative pressure is established, a semiconductor cooling chip 7 is activated. Similarly, the distributed pressure-temperature sensor 3 monitors the palm temperature in real time, and the low-power microcontroller 13 adjusts the power of the cooling chip 7 according to a preset temperature range, ensuring precise control of the cooling effect and stable temperature maintenance. The real-time information display and abnormal warning functions of the LED display 5 greatly enhance the user's awareness of the equipment status and the safety of use. This collaborative control mechanism enables the glove to provide continuous and stable negative pressure and cooling effects according to actual needs, significantly improving the user experience and the effectiveness of treatment.

[0063] In step S2, the low-power microcontroller 13 uses a PID control algorithm to perform closed-loop control on the micro vacuum pump and the micro solenoid valve to maintain the negative pressure within the target range.

[0064] This application employs a low-power microcontroller 13 with a PID control algorithm for closed-loop control of the micro vacuum pump and micro solenoid valve, significantly improving the accuracy and stability of negative pressure regulation. The proportional term of the PID algorithm can quickly respond to the current pressure error, the integral term effectively eliminates long-term steady-state errors, and the derivative term can predict pressure change trends, effectively suppressing system oscillations and overshoot. This closed-loop control mechanism ensures that the negative pressure environment in the palm area is precisely maintained within the preset target range, allowing for rapid and smooth adjustments even during hand movements or changes in the external environment. This avoids discomfort caused by excessive negative pressure fluctuations, ensures continuous and efficient negative pressure cooling, and reduces the ineffective operation of the micro vacuum pump and micro solenoid valve through refined control, thereby reducing energy consumption, extending the battery life of the button lithium battery 4, and improving user comfort and overall experience.

[0065] In step S4, the low-power microcontroller 13 adjusts the power of the semiconductor cooling chip 7 in zones based on the multi-point temperature data from the distributed air pressure and temperature sensor 3 to achieve uniform cooling.

[0066] This application utilizes multi-point temperature data provided by a distributed barometric pressure and temperature sensor 3 to enable a low-power microcontroller 13 to acquire more refined temperature distribution information on the palm surface. Based on this multi-point data, the power of the thermoelectric cooler 7 is adjusted in zones, meaning that the local cooling intensity can be dynamically adjusted according to the actual temperature needs of different areas of the palm. For example, for areas with higher temperatures, the power of the corresponding cooling area can be increased; for areas where the temperature has reached the target or is lower, the power is reduced accordingly. This refined, regionalized power control avoids the uneven cooling problem that may be caused by traditional overall power adjustment, ensuring that all parts of the palm can be maintained within the target temperature range, thereby improving the uniformity of cooling and the user's wearing comfort.

[0067] In this embodiment, after the user puts on the glove body 1, the user first operates the silicone negative pressure airbag 8 through the one-way air intake valve 9. The airbag is made of medical-grade silicone.

[0068] Air pressure regulation logic: The user connects a miniature air pump to expel air from between the airbag and the palm. Distributed air pressure and temperature sensors 3 monitor the pressure value on the palm surface in real time. Based on physiological studies, this device recommends maintaining the negative pressure between 35-45 mmHg, which maximizes the dilation of arteriovenous anastomoses (AVAs) and increases blood flow.

[0069] Sealing Guarantee: The neoprene rubber material used in the fingertips of the gloves has excellent elastic deformation ability. Combined with the tightening structure at the wrist, it forms a closed-loop airtight space, effectively preventing the intrusion of external impurities and maintaining negative pressure stability.

[0070] Active cooling and heat exchange cycle: After the negative pressure environment is established, start the semiconductor cooling chip 7.

[0071] Heat conduction path: The cold end of the semiconductor cooling chip 7 is in close contact with the heat dissipation copper plate 2 located in the middle of the palm surface 15, and the high thermal conductivity of copper rapidly and evenly distributes the cooling energy to the entire palm area.

[0072] Enhanced heat dissipation: The generated waste heat is conducted to the heat dissipation fins 10 of the wrist through the three longitudinal heat dissipation channels 11 on the back of the hand 14, effectively preventing heat backflow.

[0073] Temperature closed-loop control: The low-power microcontroller 13 presets the target cooling temperature to 18-22℃; when the distributed sensor 3 detects that the local temperature is higher than the preset value, the microcontroller automatically increases the power of the cooling chip; otherwise, it reduces the power to save the energy of the button lithium battery 4.

[0074] Data monitoring and interactive feedback: The LED display screen 5 is located on the palm side of the wrist, making it easy for users to raise their hand and see it while exercising or working.

[0075] Multi-point monitoring: The distributed barometric temperature sensor 3 is not a single sampling point, but is distributed in an array in areas with dense blood flow, such as the thenar eminence and the base of the fingers.

[0076] Abnormal warning: When the negative pressure is too high and may cause discomfort, or when the battery power is below 10%, the LED display screen 5 will remind the user by flashing or changing color, thus improving the safety of use.

[0077] Example 1: High-temperature industrial scenario: In metallurgical operations, the ambient temperature is often higher than 40°C. When workers wear this device, the wear-resistant and breathable fabric on the surface can effectively prevent sparks from splashing and keep their hands dry. At the same time, the active cooling system can continuously reduce the core body temperature and prevent heatstroke.

[0078] Example 2: Professional sports scenario: Marathon runners generate a significant amount of heat during exercise, requiring continuous cooling to enhance performance and extend endurance. Wearing this device, with its one-way vent valve 12 for rapid negative pressure adjustment and efficient heat exchange via cooling plates, provides continuous cooling during running, lowering heart rate and body temperature. By using this device, the negative pressure dilates blood vessels, reducing the temperature of blood in the arteriovenous anastomoses in the palms. This allows blood to flow back to the heart and other core areas, lowering core body temperature and significantly improving athletic performance, enabling marathon runners to sustain longer runs.

[0079] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the spirit of the invention, such designs should fall within the protection scope of the present invention.

Claims

1. A portable palm negative pressure cooling glove and its control method, characterized in that, include: Glove body (1): The negative pressure sealing assembly, located on the back of the hand (14) of the glove body (1), consists of a silicone negative pressure airbag (8), a one-way air inlet valve (9) and a one-way air outlet valve (12); A simplified cooling component is located on the glove body (1) and consists of a semiconductor cooling chip (7) and heat dissipation fins (10); The control power supply component is located on the palm side (15) of the glove body (1) and consists of an LED display (5), a low-power microcontroller (13), a distributed air pressure and temperature sensor (3) and a button lithium battery (4); A miniature vacuum pump is installed in the wrist area of ​​the glove body (1); Miniature solenoid valves are connected to one-way inlet valve (9) and one-way outlet valve (12) respectively, and are connected to miniature vacuum pump; The micro solenoid valve and the micro vacuum pump are both electrically connected to the low-power microcontroller (13).

2. The portable palm negative pressure cooling glove and its control method according to claim 1, characterized in that, The silicone negative pressure airbag (8) is disposed inside the glove body (1), and the one-way air inlet valve (9) and one-way air outlet valve (12) are disposed on one side of the back of the hand (14) and are respectively connected to the silicone negative pressure airbag (8).

3. The portable palm negative pressure cooling glove and its control method according to claim 1, characterized in that, The semiconductor cooling chip (7) is disposed in the middle of the palm surface (15), and a heat dissipation copper sheet (2) is provided thereon. The heat dissipation fins (10) are located on the back of the hand (14) at the wrist.

4. The portable palm negative pressure cooling glove and its control method according to claim 1, characterized in that, The LED display screen (5) is disposed on the wrist of the palm side (15); The distributed pressure and temperature sensors (3) are distributed in various parts of the palm (15); The low-power microcontroller (13) is located at the lower end of the LED display screen (5) and is electrically connected to the distributed air pressure and temperature sensor (3) and the LED display screen (5) respectively. The LED display screen (5) is used to display pressure and temperature. The button lithium battery (4) is located in the battery compartment at the lower end of the LED display screen (5) and provides power.

5. The portable palm negative pressure cooling glove and its control method according to claim 1, characterized in that, The glove body (1) has neoprene rubber fingers and pleats at the knuckles to facilitate finger movement. The glove body (1) is made of wear-resistant and breathable fabric.

6. The portable palm negative pressure cooling glove and its control method according to claim 1, characterized in that, The silicone negative pressure airbag (8) is a medical-grade silicone airbag.

7. The portable palm negative pressure cooling glove and its control method according to claim 1, characterized in that, The back of the hand (14) is provided with three longitudinal heat dissipation channels (11) and is connected to the heat dissipation fins (10) to increase heat dissipation.

8. A portable palm negative pressure cooling glove and its control method according to claims 1-7, characterized in that, The control method includes the following steps: S1: After wearing gloves, the silicone negative pressure airbag (8) is evacuated by a micro vacuum pump and a micro solenoid valve to create a negative pressure environment in the palm area; S2: The pressure on the palm surface is monitored in real time by a distributed air pressure and temperature sensor (3). The low-power microcontroller (13) controls the micro vacuum pump and micro solenoid valve according to the preset pressure range to achieve dynamic adjustment and stabilization of negative pressure. S3: After the negative pressure environment is established, the semiconductor cooling chip (7) is activated, and the cooling energy is conducted to the palm area through the heat dissipation copper plate (2); S4: The palm surface temperature is monitored in real time by a distributed air pressure temperature sensor (3), and the low-power microcontroller (13) adjusts the power of the semiconductor cooling chip (7) according to the preset temperature range. S5: The LED display screen (5) displays pressure, temperature and battery power information in real time, and provides early warning prompts in abnormal situations.

9. A portable palm negative pressure cooling glove and its control method according to claim 8, characterized in that, In step S2, the low-power microcontroller (13) uses a PID control algorithm to perform closed-loop control on the micro vacuum pump and the micro solenoid valve to maintain the negative pressure within the target range.

10. A portable palm negative pressure cooling glove and its control method according to claim 8, characterized in that, In step S4, the low-power microcontroller (13) adjusts the power of the semiconductor cooling chip (7) in zones according to the multi-point temperature data of the distributed air pressure temperature sensor (3) to achieve uniform cooling.

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