CN2649050Y - Heatstroke prevention cooling device for cooling human body - Google Patents

Abstract

The utility model relates to a heatstroke prevention and cooling device for cooling the human body, comprising: an evaporator arranged between two evaporator splints; a condenser arranged between two condenser splints; a large plane between the two evaporator splints and the two condenser splints Stacked in parallel with a heat insulation layer in between; the surface of the evaporator splint above the condenser splint is fixed with a micro-refrigerator, battery, controller and fan, and the refrigerator is connected by a micro-compressor that forms a refrigeration cycle. , evaporator expansion valve, liquid receiver, condenser and oil separator, the battery is connected to the controller to provide power for the controller and the fan, and the controller controls the micro compressor and fan; The human body can cool down and prevent heatstroke, and use less energy to achieve effective long-term cooling purposes, miniaturization, low energy consumption, large cooling, light and portable, low noise, high reliability, long life, simple structure, and low cost. Operation is very simple.

Description

Heatstroke prevention and cooling device for cooling human body

technical field

The utility model relates to a cooling and heatstroke prevention device, in particular to a heatstroke prevention and cooling device for cooling a human body, which is based on vapor compression refrigeration to cool and dehumidify the skin to prevent heatstroke and cool down.

Background technique

The definition of health by the World Health Organization includes two aspects of mental health and physical health. Comfortable thermal environment conditions are not only directly beneficial to people's health, but also play an important role in improving work efficiency and invigorating the spirit. Usually, naked people feel neither cold nor hot in an environment with a temperature of 29-31°C, and people with ordinary clothes in an environment with a temperature of 23-27°C, which is called being in a thermoneutral state. At this time, the body's physiological control system does not have to work to maintain a certain body temperature, such as increasing or decreasing blood flow to the skin, sweating, contracting muscles, or shivering. At this time, the average skin temperature of the human body is 33-34°C, the rectal temperature is 36.9-37.1°C, and the corresponding average body temperature is 36.3-36.5°C (Edited by Wei Runbai and Xu Wenhua, Thermal Environment, Shanghai: Tongji University Press, 1994) . If a person is in a hotter environment, the heat loss through radiation and convection becomes smaller. In order to maintain the heat balance, one has to increase sweating to increase the evaporation heat. But in a very hot environment, the sweating function of the human body cannot guarantee the thermal balance of the human body, and the body temperature will gradually rise. Therefore, the time spent in an overheated environment will depend on how long the body is heated to dangerous levels. Summer is the hottest season. When the air temperature is close to the skin temperature, heat dissipation will be poor, and the human body will increase sweat to release heat. If the relative humidity in the air is very high at this time, preventing sweat from evaporating, people will feel stuffy and uncomfortable, and are prone to heatstroke, especially workers working in the open air and the infirm. For people engaged in firefighting, high-temperature operations (such as policemen on duty, traffic police, steel workers), field operations (such as geological surveys, soldiers), and even for tourism and watching games, heat stroke prevention is particularly important. In recent years, due to the significant increase in global warming and temperature, heat stroke has become a more threatening disease.

There are many indoor cooling and heatstroke prevention facilities, which can be cooled by various fans and air conditioners. Also there is the patent occurrence (Wang Dexing, Xu Yu'e, Xin Peijun, patent: liquid vaporization cooling cooling bed, publication number: CN85205882U) by the cooling bed of liquid vaporization cooling to help people sleep in summer. The device uses the principle of liquid vaporization to absorb heat and cool the surrounding objects. Flocking or pasting fiber materials on the back of the bed surface treats the seepage layer, and guides the liquid from the liquid storage container to the seepage layer through capillary phenomenon, and the seepage layer absorbs The liquid naturally vaporizes and absorbs heat, thereby achieving the effect of cooling and cooling. However, for outdoor activities, these devices are difficult to exert their cooling effect. Therefore, seeking practical cooling measures has always been the goal pursued by people in the medical and engineering circles. In this regard, improving the heat insulation and heat dissipation of clothes is considered to be an extremely effective way. The main ways for the human body to dissipate heat are conduction, convection, radiation and evaporation. However, in a hot environment or under sports conditions, the human body mainly relies on evaporation to maintain heat balance, which accounts for more than 75% of the total heat dissipation of the human body. When the human body evaporates and dissipates heat, it will inevitably cause the humidity in the microclimate zone between the clothing and the skin to rise, causing the human body to feel uncomfortable, which in turn hinders the further evaporation of sweat on the skin surface. As a protective layer between the human body and the environment, clothing should be able to quickly dissipate heat without causing an excessive increase in the humidity of the microclimate inside the clothing. Therefore, under hot and humid conditions, improving the comprehensive heat dissipation and moisture dissipation performance of clothing plays an important role in the thermal balance of the human body. effect. The way to improve it is also mainly according to several main ways of the human body to dissipate heat—conduction, convection, radiation and evaporation. Patent ZL90207709.0 (Wei Zhuofeng, heat-insulating, heat-dissipating and sunstroke-proof clothing), on the inner side of daily clothes, several inflatable pipes are installed side by side according to a certain distance, relying on the support of the inflatable pipes to make the clothes leave the skin and become a heat insulation layer, from a certain To a certain extent, it overcomes the shortcoming that the daily clothes directly transfer the heat of the sun to the skin of the human body, and is also conducive to the release of heat by the human body. There is also the way of filling water in the pipeline and utilizing power to make water or air flow (Ma Xihong, patent: cooling and heating up clothing luggage as a pad, publication number: CN86101745A), further improving its performance. Publication No. CN87101081.X (Yu Zhiwei, patent: air-conditioning clothing) also mentions that water is atomized and sent to the body surface, and its evaporation is used to cool down. There are also clothes, headscarves and scarves that use phase change heat absorption to cool the human body, and there are commercial sales abroad. In addition to these methods for improving the comprehensive heat dissipation and dehumidification of clothes, there are also improvements to other parts such as hats and pads (Deng Changhu, patent: solar cooling heatproof helmet, publication number CN2044422U; Li Wenhua, patent: efficient cooling and health care pad, publication number CN1058573A).

Existing cooling and heatstroke prevention clothing can improve the comprehensive heat dissipation and moisture dissipation performance of clothing to a certain extent, which plays an important role in the thermal balance of human body. Some can form an air layer between the skin and clothes to reduce the direct conduction of external heat; some use the forced convection of air or water in the pipeline to lower body temperature; some use external phase change to absorb heat to cool the body surface. These methods and devices can basically meet people's requirements when the outdoor temperature is not very high and there is no need to work outdoors for a long time. But once the outdoor temperature is relatively high, especially when the humidity is very high, the cooling ability of these devices is very limited. If these devices are required to work outdoors for a long time, they are even more powerless. Perhaps this is why these methods and devices have not been able to be promoted in a large area. main reason. Even the heat-absorbing clothes of phase change materials sold abroad have many unavoidable defects. This kind of clothing made of phase change material is relatively light in weight (adult clothing is only about 4kg), can maintain the temperature at 19°C, and can be used repeatedly and has the advantage of being replaceable (www.coolsport.net). But it can only last for 2.5 hours, and the price is about 1,500 yuan, so it needs to be stored in the refrigerator when not in use. Miniaturization can be achieved relatively easily by using semiconductor coolers, but the working current of semiconductor coolers is generally required to be relatively large. At the same time, the refrigeration coefficient of the semiconductor refrigeration sheet is very small, and a relatively large input power is required to achieve a certain cooling capacity (Edited by Xu Desheng, Semiconductor Refrigeration and Application Technology, Shanghai: Shanghai Jiaotong University Press, 1999), it is difficult to pass the battery for a long time. powered by. In this case, it is even more impossible to use solar cells with current technology. Therefore, for real outdoor activities, especially these devices and methods for field work are basically just not applicable.

On the other hand, in the past two centuries, humans have continuously burned petroleum products, natural gas and coal, and forests in some areas have been excessively deforested. These actions have increased the concentration of carbon dioxide in the earth's atmosphere by about one-third in total. The increasing carbon dioxide has changed the structure of the earth's atmosphere, causing more of the earth's heat that could have entered the universe to be absorbed by the atmosphere, and then more energy is reflected to the Earth, thereby raising the temperature of the Earth's surface. It is predicted that the surface temperature in tropical and mid-latitude regions will rise by about 2°C by 2100 (Edited by John T. Horton, translated by Jin Kui, Global Climate, Beijing: Meteorological Press, 1986). With global warming, the temperature rises significantly, and the temperature in many places will be close to 40°C. The human body is quite sensitive to temperature, which is already unbearable for personnel engaged in high-temperature operations. It is even more dangerous for police officers and geologists who have been on duty outside the high temperature for a long time. I eagerly hope that there will be a A garment or device designed to help the body lower body temperature over time to prevent heatstroke. To deal with higher and higher temperatures, using refrigeration to actively reduce the temperature is a feasible method. At present, some refrigeration methods include: using the melting of ice to generate low temperature; using the heat of dissolution of a mixture of ice and salt to generate low temperature; using solid carbon dioxide (commonly known as dry ice) to absorb a large amount of sublimation heat from the surroundings to achieve cooling when sublimated into gas; using Refrigeration is achieved by the heat absorption of liquids that are easy to evaporate at low temperatures when they evaporate; refrigeration is realized by utilizing the heat absorption and low temperature characteristics of high-pressure gas expansion; thermoelectric refrigeration and other types (Edited by Su Qingrui and Li Huachun, Refrigeration and Air Conditioning, Shenyang: Liaoning Science Technical Press, 1984). Among them, the natural refrigeration method that utilizes physical changes such as dissolution, sublimation, and evaporation of substances to achieve refrigeration should be tried at present, but it is difficult to meet the requirements of long-term cooling. Mechanical refrigeration that consumes energy (such as mechanical energy, thermal energy, etc.) to absorb heat from low-temperature objects and transfer this heat to high-temperature objects to achieve refrigeration can meet this requirement. Mechanical refrigeration is realized by using refrigerants, and the refrigeration methods mainly include vapor compression, absorption refrigeration, steam injection refrigeration, thermoelectric refrigeration, etc. In mechanical refrigeration, vapor compression refrigeration is the most economical and widely used refrigeration method (Edited by Su Qingrui and Li Huachun, Refrigeration and Air Conditioning, Shenyang: Liaoning Science and Technology Press, 1984). Under normal circumstances, the heating power obtained by adults in a high-temperature environment of 40°C is less than 100W, and the input power required for refrigeration by vapor compression is only about 20W. Such vapor compressors can already be miniaturized on the market, and Many batteries can provide such power to meet long-term work. On the contrary, to achieve the same refrigerating capacity, the input power required by the peltier cooler is much larger. Therefore, the cooling and dehumidification of the skin based on vapor compression refrigeration can completely achieve the purpose of cooling for a long time and preventing heatstroke. This will also propose a new concept of "individual air conditioning", and people can freely adjust the temperature of the small environment around the skin according to their own needs. and humidity to achieve the comfortable state you like.

To sum up, the use of vapor compression refrigeration can provide the cooling capacity that people need for a long time in a hot environment, and the input power required by themselves can be fully met by batteries. For this reason, on the basis of fully considering the current technology, the utility model utilizes the vapor compression refrigeration technology to provide the energy needed by the human body, coils the evaporator pipeline between a two-layer splint, and then sews the splint on the back of the clothes. It can easily achieve cooling and heatstroke prevention. And according to the needs of different groups and environments, different cooling capacities can be selected to cool down the human body and prevent heatstroke. At the same time, the clothes sewn with refrigeration double-layer splints can also be processed into different styles according to the requirements of different groups.

As mentioned above, at present, the patent of using natural refrigeration method to cool the human body on clothing has come out, and there is no application of vapor compression refrigeration on clothing. With regard to the current technology, it can be easily installed on clothing by using vapor compression refrigeration, and the appropriate temperature can be adjusted according to environmental changes to achieve the purpose of cooling and heatstroke prevention. Therefore, the utility model is expected to propose a new concept of "individual air conditioner" and provide a new type of cooling heatstroke prevention clothing that can provide refrigeration for a long time. The effect of cooling and heatstroke prevention. The refrigerating device adopted in the utility model provides relatively large cooling capacity and low power consumption. Different maximum cooling capacity and clothing styles can be selected according to different groups and environments. It is an economical and simple cooling and heatstroke prevention device. Finding users in a wide range of people is a device with a wide range of applications.

Contents of the invention

The purpose of this utility model is to provide a heatstroke prevention and cooling device suitable for cooling the human body in a high-temperature environment, which can cool the human body to prevent heatstroke according to different groups and environmental needs, and use less energy to obtain effective long-term cooling. The purpose of cooling, miniaturization, low energy consumption, large cooling, light portability, low noise, high reliability, long life, simple structure, low cost and very simple operation.

The technical scheme of the utility model is as follows:

The heatstroke prevention and cooling device for human body cooling provided by the utility model is characterized in that it includes:

An evaporator 9 arranged between the two evaporator splints 1; a condenser 10 arranged between the two condenser splints 7; the two evaporator splints 1 and the large planes of the two condenser splints 7 are stacked in parallel, with a heat insulation layer 8; and the width of the evaporator splint 1 and the condenser splint 7 is the same, and the evaporator splint 1 is longer than the length of the condenser splint 7;

On the surface of the evaporator clamping plate 1 above the condenser clamping plate 7, fix a miniature refrigerator, a storage battery 4, a controller 5 and a fan 6, and the miniature refrigerator is composed of a microcompressor 11, an evaporator 9 expansion valve 12, a liquid reservoir 13. The condenser 10 and the oil separator 14 are composed, and the connection sequence is as follows: the micro compressor 11 is connected to the evaporator 9, the evaporator 9 is connected to the expansion valve 12, the expansion valve 12 is connected to the liquid reservoir 13, and the liquid reservoir 13 is connected to the condenser 10. The condenser 10 is connected to the oil separator 14, and the oil separator 14 is connected to the micro compressor 11 to form a refrigeration cycle; the battery 4 is connected to the controller 5 to provide power for the controller 5 and the fan 6, and the controller 5 controls the micro Compressor 11 and fan 6;

The microrefrigerator is a vapor compression refrigerator, an absorption refrigerator, a vapor injection refrigerator, a compressed gas refrigerator, a gas vortex refrigerator, a Stirling refrigerator, a Villemuir refrigerator or a GM refrigerator. The cooling capacity is 50-200W, and the input power is 10-40W;

The evaporator coil of the evaporator 9 and the condenser coil of the condenser 10 are metal coils with high thermal conductivity;

The evaporator coil of the evaporator 9 and the condenser coil of the condenser 10 are coils made of aluminum tubes or copper tubes;

The length*width*thickness of described evaporator splint 1=10-150cm*10-50cm*1-5cm, the width of condenser splint 7 is the same as the width of evaporator splint 1, the length of condenser splint 7 is shorter than evaporator splint 1. The length is 20-30cm shorter;

The upper and lower parts of the outer surface of the evaporator splint 1 are respectively equipped with an upper fixing belt 15 and a lower fixing belt 16;

The length of the condenser splint 7 is a metal plate made of copper, aluminum or stainless steel than the evaporator splint 1;

The refrigerant used in the micro refrigerator is HFC-123, HFC-22, HFC-152 or HFC134a.

The micro-compressor 11 of the present utility model can select different rated refrigeration capacities according to different groups and environments, so as to suit the needs of different groups and different environments as much as possible. At the same time, try to choose the existing miniature refrigerator powered by direct current on the market, which can greatly reduce the production cost. Refrigeration methods can also use absorption refrigeration, steam injection refrigeration, compressed gas refrigeration, gas vortex refrigeration, Stirling refrigeration, Villemer (VM) refrigeration, GM refrigeration and other refrigeration methods. The reason why vapor compression refrigeration is used It is because it is currently the most economical and widely used refrigeration method, with a relatively large refrigeration coefficient and low energy consumption. Refrigeration working fluid requires the selection of non-toxic, non-polluting and non-flammable new working fluid, such as HFC-123, HFC-22, HFC-152, HFC134a, etc., and different working fluids can be selected according to requirements.

The working principle of vapor compression refrigeration is composed of four main thermodynamic processes of refrigerant compression, heat release, throttling and heat absorption in thermal equipment such as micro compressors, condensers, expansion valves and evaporators. The refrigerant coming out of the micro-compressor 11 enters the condensation pipe of the condenser 10 through the oil separator 14 to dissipate heat to the environment. In order to enhance heat dissipation, the condensation pipe of the condenser 10 is installed side by side in the middle of the condenser splint 7 to increase heat transfer. The evaporation pipe of the evaporator 9 can also be installed in the middle of the evaporator clamping plate 1 in other forms. Utilize the fan 6 to blow air in the condenser splint 7 to further strengthen heat dissipation simultaneously. The reason why the condenser 10 is sealed in the middle of the condenser clamping plate 7 is to prevent the condensing pipe of the condenser 10 from breaking due to external impact and causing refrigerant leakage. The refrigerant coming out of the condensation pipe passes through the expansion valve 12 and enters the evaporation pipe of the evaporator 9 to absorb heat from the human body. The evaporating pipes are installed side by side in the middle of the evaporator splint 1 to increase the heat exchange area and cool the human body through the refrigerant flowing in the evaporating pipes. Similarly, the evaporating pipes of the evaporator 9 can also be installed on the evaporator in other forms. In the middle of splint 1. The evaporator splint 1 can be made into different sizes and models according to different ages, genders, and body types, so as to be suitable for different groups of people of different body types to wear. The gaseous refrigerant from the evaporator pipeline 9 first enters the liquid receiver 13, reduces the airflow velocity, and is sucked by the micro compressor 11 after separating heavier liquid droplets to ensure dry compression.

A thermal insulation layer 8 is filled between the parallel condenser splints 7 and evaporator splints 1 to avoid heat exchange between the condenser splints 7 and the evaporator splints 1 and affect the cooling effect on the human body itself. Micro compressor 11 and fan 6 are all powered by battery 4 and controlled by controller 5 simultaneously. The programmed chip is installed in the controller 5, and accessories such as a display screen, a switch and a keyboard are configured. The controller 5 is connected to and controls the micro compressor 11 , the fan 6 and the storage battery 4 . According to the user's favorite comfortable temperature and ambient temperature, humidity, etc., the appropriate cooling capacity can be selected through the keyboard setting, and the opening and closing of the micro compressor 11 and the fan 6 can be controlled at the same time. In addition, other additional functions such as a display of the charge remaining in the battery can also be displayed.

The total weight of the whole device is about 4kg. Utilize the fixed belt 15 and the lower fixed belt 16 installed on the evaporator splint 1 to carry it on the back like a backpack, which saves trouble and does not affect the appearance. The upper fixing belt 15 and the lower fixing belt 16 can be made of elastic bands, elastic cloth or other materials with better elasticity, and the two lower fixing belts 16 joints can be connected with adhesive buttons

In summary, the utility model has a compact and simple structure, and has a high performance-price ratio. The core principle of the utility model is to use vapor compression refrigeration to connect with the evaporator to achieve the purpose of cooling and heatstroke prevention. The device is more effective because the refrigerating coefficient of the vapor compression refrigeration is relatively high, and the power needed to obtain the same refrigerating capacity is very small, and the existing battery can meet the requirement for a long time. Simultaneously, the volume of the miniature refrigerating compressor and the storage battery is relatively small, and the total weight is below 4kg, which can be accepted by people. Moreover, it can be used in different sizes according to different groups of people, ages, and genders to meet the needs of different groups. It has the advantages of miniaturization, low energy consumption, large cooling, light portability, low noise, high reliability, long life, simple structure, and low cost. Very simple and other advantages.

Description of drawings

Fig. 1 is the structural representation of the heatstroke prevention cooling device that is used for human body cooling of the utility model;

Fig. 2 is the back view of Fig. 1;

Fig. 3 is a side view of Fig. 1;

Fig. 4 is the top view of Fig. 1;

Fig. 5 is a schematic diagram of the refrigerating cycle circuit of the refrigerator of the heatstroke prevention and cooling device used for cooling the human body of the present invention;

Among them: evaporator splint 1 container 2 compressor container 3

Battery 4 Controller 5 Fan 6

    Condenser splint 7   Insulation layer 8   Evaporator 9

Condenser 10 Micro compressor 11 Expansion valve 12

  Liquid reservoir 13   Oil separator 14 Upper fixing strap 15

  Lower fixing strap 16

Detailed ways

Further describe the utility model below in conjunction with accompanying drawing and specific embodiment.

Fig. 1 is the structural representation of the heatstroke prevention cooling device for human body cooling of the present utility model, also is an implementation figure of the present utility model, and its rear view, side view and top view are shown in Fig. 2, Fig. 3 and Fig. 4 respectively. It can be seen from the figure that the cooling and heatstroke prevention clothing provided by the utility model includes the evaporator splint 1, the bag 2 for the refrigeration system, the part 3 for the compressor, the storage battery 4, the controller 5, the fan 6, the condenser splint 7, heat insulation Layer 8, evaporator pipe 9, condenser pipe 10, micro compressor 11, expansion valve 12, liquid receiver 13, oil separator 14, upper fixing belt 15, lower fixing belt 16, etc. Wherein the evaporator splint 1 is made of copper plate, aluminum plate or stainless steel plate, and is made into different sizes and models according to different ages, sexes and body shapes, so as to be suitable for different groups of people of different body types to wear. It can be put into the vest for heatstroke prevention and cooling of the human body, and can be used for heatstroke prevention and cooling of the head when placed in the interlayer of the hat. This device can also be placed in clothes to make heatstroke prevention and cooling clothing. Select the appropriate shape of the evaporator plate and the cooling capacity of the micro compressor. Moreover, the refrigeration method used is not limited to vapor compression refrigeration, and absorption refrigeration, steam injection refrigeration, compressed gas refrigeration, gas vortex refrigeration, Stirling refrigeration, Villemier (VM) refrigeration, GM refrigeration, etc. can also be used. A variety of refrigeration methods, these are not the only ones here.

The manufacturing steps of the heatstroke prevention cooling device for human body cooling of the present utility model are as follows (referring to Fig. 1):

1) First cut four copper plates (it can also be aluminum plate or stainless steel plate), the length and width are determined according to the required size (take the human body vest as an example), the length is in the range of 10-150cm, and the thickness is in the range of 1-5cm , the width is in the range of 10-50cm, and corresponding design can also be carried out according to the needs; two of the plates are evaporator splints 1, and the other two are condenser splints 7, and the length of evaporator splint 1 can be greater than that of condenser splint 7 Length 20mm, 25mm, 28mm, 30mm, to meet the needs of people of different heights;

2) Then cut two sections of aluminum tubes with a diameter of 2 to 5 mm, the length of which is determined according to the size of the copper plate cut in step 1);

3) As shown in Figure 4, coil the aluminum tube with a spacing of about 2 to 5 mm, weld a coiled aluminum tube to a long copper plate, and encapsulate the aluminum tube with a copper plate of the same length as the copper plate , just prepared the evaporator splint 1; prepare the condenser splint 7 in the same way;

4) Install the upper fixing belt 15 and the lower fixing belt 16 on the upper and lower parts of the surface of one side of the evaporator clamping plate 1 according to Figure 2; fix the refrigerator at the position shown by the number 3 in Figure 1 on the other surface of the evaporator clamping plate 1, Described refrigerator is made up of micro-compressor 11, expansion valve 12, liquid reservoir 13, oil separator 14 and evaporator pipeline 9 and condenser pipeline 10, and its connection sequence is as shown in Figure 4: micro-compressor 11 connects evaporation The evaporator pipeline 9, the evaporator pipeline 9 is connected to the expansion valve 12, the expansion valve 12 is connected to the liquid receiver 13, the liquid receiver 13 is connected to the condenser pipeline 10, the condenser pipeline 10 is connected to the oil separator 14, and the oil separator 14 is connected with the micro compressor The machine 11 is connected to form a refrigeration cycle; at the same time, the storage battery 4, the fan 6 and the controller 5 are fixed at the positions shown in Figure 1, and the controller 5 is connected to and controls the micro compressor 11, the fan 6 and the storage battery 4; This part is encapsulated with container 2 to make it soundproof, heat-insulated and anti-vibration; a heat-insulating layer 8 is bonded on the lower half of the side of the evaporator splint 1, and then on the outer surface of the heat-insulating layer 8 Bonding and fixing the condenser splint 7 prepared in step 3);

5) After welding the pipes connecting the various parts, it is filled with refrigerant and packaged as shown in Figure 1. Among them, the selected refrigerants are required to be non-toxic, non-polluting and non-flammable, such as HFC-123, HFC-22, HFC-152, HFC134a, etc., which can be selected according to different requirements.

The programmed chip is installed in the controller 5, and accessories such as a display screen, a switch and a keyboard are configured. The controller 5 is connected to and controls the micro compressor 11 , the fan 6 and the storage battery 4 . According to the user's favorite comfortable temperature and ambient temperature, humidity, etc., the appropriate cooling capacity can be selected through the keyboard setting, and the opening and closing of the micro compressor 11 and the fan 6 can be controlled at the same time. In addition, other additional functions such as the power remaining in the storage battery 4 can also be displayed.

The heatstroke prevention and cooling device provided by the utility model for cooling the human body can be applied in places such as fire-fighting, high-temperature work, field work, travel and watching games. Adjust the appropriate temperature according to environmental changes to achieve the purpose of cooling and heatstroke prevention.

The utility model has many advantages. It can lower the temperature and dehumidify the skin so that people can achieve the purpose of cooling and preventing heatstroke and comfort. The purpose of cooling for a long time, miniaturization, low energy consumption, large cooling, light and portable, low noise, high reliability, long life, simple structure, low cost and very simple operation. It is especially beneficial for people who work in a high temperature environment for a long time. It is because of these comprehensive factors that the method and device provided by the utility model are simple and easy to implement, and the manufacturing cost and price are relatively low. Great advantage.

Its use process is as follows:

1. Utilize the upper fixing belt 15 and the lower fixing belt 16 fixed on the splint 1 of the evaporator to bind the device of the present invention on the back of the human body;

2. Turn on the power of the controller 5, and select the appropriate cooling capacity according to your favorite comfortable temperature and ambient temperature, humidity and other information;

3. Turn on the control switch of the controller 5, start the micro compressor 11 and the fan 6 to cool down;

4. Turn off the power when not in use, remove the battery 4 for charging, and pay attention to remove the battery 4 when not in use for a long time.

Claims (8)

1. A heatstroke prevention and cooling device for cooling the human body, characterized in that it comprises: An evaporator (9) arranged between the two evaporator splints (1); a condenser (10) arranged between the two condenser splints (7); the two evaporator splints (1) and the two condenser splints (7) ) are stacked in parallel, with a heat insulating layer (8) in between; and the width of the evaporator splint (1) is the same as that of the condenser splint (7), and the evaporator splint (1) is larger than the condenser splint (7) length; On the surface of the evaporator clamping plate (1) above the condenser clamping plate (7), a micro-refrigerator, a storage battery (4), a controller (5) and a fan (6) are fixed, and the micro-refrigerating device is controlled by a micro-compressor (11 ), evaporator (9) expansion valve (12), liquid reservoir (13), condenser 10 and oil separator (14), its connection sequence is: micro compressor (11) connects evaporator (9), The evaporator (9) is connected to the expansion valve (12), the expansion valve (12) is connected to the liquid reservoir (13), the liquid reservoir (13) is connected to the condenser 10, the condenser 10 is connected to the oil separator (14), and the oil separator (14) is connected with micro-compressor (11) again and forms refrigeration loop; Storage battery (4) is connected with controller (5) to provide power supply for controller (5) and fan (6), and controller (5) controls micro Compressor (11) and fan (6). 2. The heatstroke prevention and cooling device for cooling the human body according to claim 1, wherein the miniature refrigerator is a vapor compression refrigerator, an absorption refrigerator, a steam injection refrigerator, a compressed gas refrigerator, Gas vortex refrigerators, Stirling refrigerators, Villemer refrigerators or GM refrigerators have a cooling capacity of 50-200W and an input power of 10-40W. 3. The heatstroke prevention and cooling device for cooling the human body according to claim 1, characterized in that: the evaporator coil of the evaporator (9) and the condenser coil of the condenser (10) are high thermal conductivity Rate Metal Coil. 4. The heatstroke prevention and cooling device for cooling the human body according to claim 3, characterized in that: the evaporator coil of the evaporator (9) and the condenser coil of the condenser (10) are aluminum tubes Or coils made of copper tubes. 5. The heatstroke prevention and cooling device for cooling the human body according to claim 1, characterized in that: the length x width x thickness of the evaporator splint (1) = 10-150cm x 10-50cm x 1-5cm, condensation The width of device clamping plate (7) is identical with the width of evaporator clamping plate (1), and the length of condenser clamping plate (7) is 20-30cm shorter than the length of evaporator clamping plate (1). 6. The heatstroke prevention and cooling device for cooling the human body according to claim 1, characterized in that an upper fixing belt (15) and a lower fixing belt ( 16). 7. The heatstroke prevention and cooling device for cooling the human body according to claim 1 or 6, characterized in that the length of the condenser splint (7) is longer than that of the evaporator splint (1) and is made of copper, aluminum or stainless steel metal plate. 8. The heatstroke prevention and cooling device for cooling the human body according to claim 1 or 2, characterized in that the refrigerant used in the miniature refrigerator is HFC-123, HFC-22, HFC-152 or HFC134a.

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