37results about How to "To achieve the purpose of temperature regulation" patented technology

The invention discloses a temperature regulating device for a mine rescue capsule, comprising a surface cooler 300 arranged in the rescue capsule, wherein a fan 303 is arranged in the surface cooler 300. The temperature regulating device also comprises a CO2 liquid storage bottle 100, a throttling pipeline is arranged between the CO2 liquid storage bottle 100 and the cooling medium inlet of the surface cooler 300 and is provided with a throttle 200, the cooling medium outlet of the surface cooler is connected with a CO2 exit pipe 400 communicated with atmosphere, and the CO2 exit pipe 400 extends out of the rescue capsule. Liquid CO2 is gasified to adsorb heat in the surrounding air, and cooled air circularly flows in the rescue capsule so as to obtain the purpose of regulating temperature. In addition, CO2 is directly discharged out of the rescue capsule from the surface cooler after gasified without being reused, and no compressors are needed so as to greatly save power resource in the rescue capsule, thus the temperature regulating device can be normally used under the extreme working conditions, such as mine disasters. The throttle controls the gasification amount of the liquid CO2, and the control method is simple and convenient.

The invention discloses a constant temperature method for a storage battery, which comprises a temperature monitoring control module, an electric heater, a battery incubator, a heat accumulator, a heat pipe, and the like, and adopts the heat accumulator for supplying heat and the heat pipe for keeping constant temperature and conducting heat and adjusting the temperature of the battery incubator. The storage battery constant temperature method has the advantages of low energy consumption, high reliability, and can be used in occasions with bad electricity supply environment, and is also characterized by easy implementation and convenient use.

The invention discloses a resin sand processing system, which comprises a vibration crushing reclaimer, a feeding device, a sand-storing device, a sand-cooling device, a sand-reclaiming device, a cooling bed, a multifunctional feed bin, sand pneumatic conveying equipment, a compressed air unit, an air conditioning unit, a dedusting system and a sand mixer. The resin sand processing system has keypoints as follows: the sand-storing device has the same structure with the multifunctional feed bin, but different capacities; and each of the sand-storing device and the multifunctional feed bin comprises a temperature-adjusting bin, a feed inlet, a feed outlet, a valve, an air intake device and an air outlet. The feed inlet is hermetically and fixedly connected to the left side of the temperature-adjusting bin from left above; the air outlet is hermetically and fixedly connected to the right side of the temperature-adjusting bin from right above; the feed outlet is hermetically and fixedly connected to the middle of the lower part of the temperature-adjusting bin from below; the valve is arranged on the feed outlet; the air intake device penetrates through the lower part of the temperature-adjusting bin, and is fixed on the periphery of the lower part of the temperature-adjusting bin; and the air discharge part of the air intake device is positioned in the inner cavity of the temperature-adjusting bin.

The invention provides a temperature control system of a near space sealed cabin. The temperature control system comprises a cabin wall heat exchanger, a cold accumulation heat exchanger, a first bypass pipeline, a gas-liquid heat exchanger and an acquisition controller, wherein the cabin wall heat exchanger is arranged on a cabin wall of the sealed cabin for obtaining an out-cabin cold source; the cold accumulation heat exchanger is internally provided with a cold accumulation working medium, connected with an output end of the cabin wall heat exchanger through a liquid pipeline at an input end and provided with a first control valve at the input end or an output end; the first bypass pipeline is connected to two ends of the cold accumulation heat exchanger in parallel through liquid pipelines and provided with a second control valve; the gas-liquid heat exchanger is used for exchanging heat with the internal part of the cabin, connected with an output end of the cold accumulation heat exchanger through a liquid pipeline at an input end and connected with the input end of the cabin wall heat exchanger through a liquid pipeline at an output end; and the acquisition controller is used for controlling the first control valve and the second control valve. The temperature control system can satisfy temperature demands of a near space sealed cabin manned flight in ascending, stop and descending processes, and solves the problem of influence on the in-cabin temperature by external environment change distance.

The invention discloses electric heating area control valve. It includes valve body, valve rod, hot resistance, thermal sensor, spring, outer cover, union body, reversing valve body, double sided seal ring, and thermostat package. The reversing valve body is set in the valve body. And its upper end is set joint. Its lower end is set the union body. The limited inner chamber of the outer cover, union body, and reversing valve body is set the hot resistance, thermal sensor, valve rod and spring. The valve rod is set the double sided seal ring. The thermostat package is connected with hot resistance electrical property. The invention can automatically control area flow quantity to adjust the temperature.

The invention relates to an air conditioning plant combining underground energy with solar energy, which comprises an air conditioner, a solar collector, a circulating pump, a heat exchanger, a water storage tank, an electromagnetic valve I, an electromagnetic valve II and a solar electromagnetic valve. The air conditioner is connected with the solar collector through a pipeline and connected with the heat exchanger through a pipeline; the heat exchanger is placed in an underground well and connected with the water storage tank; and the circulating pump is arranged in the pipeline for connecting the heat exchanger with the air conditioner. As purified water is added into the heat exchanger and the solar collector, scaling is decreased. As the heat exchanger and the water storage tank are arranged in the well, the underground energy is used for cooling. The solar collector is arranged on a south wall surface of a house and provided with a heat reserving belt for reserving heat, and the weight of a wall is reduced. A circulating water pipe is arranged in the solar collector, so that solar damage is avoided. The underground energy is combined with the solar energy, so that the temperature is adjusted on the basis of green and environmental protection.

The invention discloses a phase change energy storage sealing wallboard with multiple temperature control adjusting structures. The phase change energy storage sealing wallboard comprises a surface decorative plate, a phase change energy storage plate, a sound insulation plate, a bottom plate and a mounting assembly, the surface decorative plate is arranged on the surface of the phase change energy storage plate, the sound insulation plate is arranged on the side, away from the surface decorative plate, of the phase change energy storage plate, the side, away from the phase change energy storage plate, of the sound insulation plate is connected with the bottom plate, and the mounting assembly is arranged at the end, away from the phase change energy storage plate, of the bottom plate. According to the phase change energy storage sealing wallboard with the multiple temperature control adjusting structures, the sound insulation board is arranged, interference of noise on a user is effectively reduced in a mechanical mode, glue can be placed into a glue containing barrel to be fixed in an adhesion mode during installation, meanwhile, a traditional mode can be used for fixing, use is more convenient, and the end part of a heating wire wound on one side of a plate can be sealed and fixed through a wire end fixing mechanism.

The invention provides a method for adjusting the temperature in a beverage can, and relates to the field of beverage and food. The technical problem that an external cold source or a heat source is required to control temperature of the beverage can in current beverage products. The method adjusting the temperature in the beverage can comprises the following steps that a heated area and a heatedarea are arranged in the beverage can at intervals; two temperature regulating substances capable of releasing heat or absorbing heat after mutual reaction are placed in the heating area in advance; the two temperature regulating substances are mutually spaced and arranged adjacent to each other through a destructible thin film; and the destructible thin film is enabled to generate an opening allowing the two temperature regulating substances to mix with each other by the action of external force, so that the two temperature regulating substances release heat or absorb heat after reacting witheach other, the temperature of the heated area is adjusted. The method adjusting the temperature in the beverage can is used for increasing the function of the beverage can and meeting the requirement of automatically adjusting the temperature of the beverage can.

The invention discloses a multifunctional air sterilizer which is characterized by including a casing, an air inlet, and an air outlet. An air-compressed air exhauster is arranged in the casing. An active-carbon-bag filter is arranged in the air inlet. The air outlet of the air-compressed air exhauster is connected with an air diverter via a stop-flow valve. The air diverter is connected with a sterilization cavity. The lower part of the sterilization cavity is a sterilization solution. The upper space of the sterilization solution is used for swirling airflow. The sterilization cavity is connected with a heat exchanger. The bottom of the heat exchanger is connected with an outdoor unit which is disposed outside the casing. The top of the heat exchanger is connected with a filter. The filter is connected with the air outlet. A filter screen is arranged in the filter. The sterilizer has the advantages of rational structure, good sterilization effects, economical resources, and complete functions.

The invention relates to a purification, disinfection, humidification, dehumidification and temperature adjustment device which comprises a master purification, disinfection, humidification, dehumidification and temperature adjustment all-in-one machine and a plurality of slave purification, disinfection, humidification, dehumidification and temperature adjustment all-in-one machines. The master purification, disinfection, humidification, dehumidification and temperature adjustment all-in-one machine is of the same structure as the slave purification, disinfection, humidification, dehumidification and temperature adjustment all-in-one machines. An intelligent master control module is arranged in each machine frame and comprises a serial communication interface I, a serial communication interface II and a serial communication interface III. The slave purification, disinfection, humidification, dehumidification and temperature adjustment all-in-one machines are connected to the serial communication interface II of the master purification, disinfection, humidification, dehumidification and temperature adjustment all-in-one machine through the corresponding serial communication interfaces III.

The invention discloses a heat exchange device for adjusting the temperature of loose solid particles. The device is characterized by comprising a temperature adjusting bin, a feed port, a discharge port, a valve, an air inlet device and an air outlet. Almost no obstacle exists in the temperature adjusting bin. The feed port is fixedly connected to the left side of the temperature adjusting bin in a closed manner from the upper left and communicated with the inside of the temperature adjusting bin. The air outlet is fixedly connected to the right side of the temperature adjusting bin in a closed manner from the upper right and communicated with the inside of the temperature adjusting bin. The discharge port is fixedly connected to the lower middle of the temperature adjusting bin in a closed manner from the lower part and communicated with the inside of the temperature adjusting bin. The valve is arranged on the discharge port and can discharge the material in the temperature adjusting bin by being opened. The air inlet device passes through the lower part of the temperature adjusting bin and is fixed on the lower periphery of the temperature adjusting bin; and an air outlet part of the air inlet device is located in the inner cavity of the temperature adjusting bin.

The invention discloses indoor environment governance integrated equipment and a supporting system. The indoor environment governance integrated equipment comprises an air inlet atomization device, aspiral washing device, a cyclone separation blowdown device, a cone blowdown groove, a cold-heat exchanger, a filter, an ozone generator, a refrigerating and heating integrated machine, a water pump and a draught fan; and the supporting system comprises an intelligent automatic centralized control device, a tiny dust content sensor, an ozone content sensor, a temperature and humidity sensor and awind speed sensor. According to the indoor environment governance integrated equipment and the supporting system, the problems of dust removal, humidity adjustment, temperature adjustment, odor removal, deodorization, sterilization, disinfection and removal of volatile organic compounds (TVOC) such as formaldehyde, methylbenzene and ammonia can be solved, secondary pollution is avoided, indoor pollution detection and confirmation are not needed, the purpose of improving the indoor environment can be achieved through direct installation and use, and the equipment is beneficial to health and hasa prevention and control function on infectivity diseases.

The invention discloses a tea making device with a heat radiator, which comprises a tea making seat body, an electric heater and a water outlet nozzle. The tea making device is characterized in that a metal heat radiator is arranged on the tea making seat body, the metal heat radiator comprises at least two metal shells, one metal shell is used as a heat radiating tool, the other metal shell is used as a drinking water loading device, the heat radiator is fixed on the tea making seat body, and the drinking water loading device is in surface contact with the heat radiator. According to the tea making device, the metal heater is fixed on the tea making seat body and is integrally connected with the tea making seat body, a user does not need to purchase a mismatching heat radiator; and the heat radiator is matched with the electric heater when leaving a factory, the convenience is provided for the operation of the user, the metal heat radiator is used for professionally making tea, rapid and accurate heat radiation of hot water is realized by using a surface contact heat radiation mode between two metal surfaces; and different requirements of users for optimal water temperature due to different kinds of tea are met, tea water with optimal mouth feel is made. The tea making device has the advantages of simple and reasonable structure, and convenience and sanitation for use because the heat radiator is arranged on the seat body.

The invention discloses an insulating pure-electric bus fuel cell box with a temperature adjusting property. The insulating pure-electric bus fuel cell box with the temperature adjusting property comprises a box body which is prepared from a silicon carbide composite material. A preparation process comprises the following steps: uniformly mixing silicon carbide with a pore-foaming agent accordingto a certain proportion, then adding an ethanol solution, grinding uniformly and drying, and sintering to obtain macroporous silicon carbide; taking silicon powder, the macroporous silicon carbide, water, a binding agent and an antisettling agent, and stirring at high speed to obtain a mixture, pressurizing and forming the mixing in a mold, drying a blank, and carrying out nitridation sintering ina nitridation chamber to obtain a box body with rough surfaces; and soaking the box body in liquid paraffin, taking out the box body, cooling and polishing, and spraying the surfaces of the box bodywith a layer of coating. The cell box is preared from the silicon carbide composite material and has certain strength, and meanwhile, because the surfaces of the box body are dipped with the liquid paraffin and are coated with the coating, the prepared cell box has good temperature regulation and heat conduction properties.

The invention discloses a protecting helmet which comprises a helmet brim and a helmet shell, wherein a first hollow chamber is formed in the helmet brim; a second hollow chamber which is communicated with the first hollow chamber is formed in the helmet shell; a heat conducting block is arranged on the helmet brim; a swelling block which is resisted against the heat conducting block is filled in the first hollow chamber; a sliding block is resisted against the swelling block; the sliding block is in sliding connection with the interior of the second hollow chamber; a first button and a second button are arranged in the second hollow chamber; wedge surfaces are arranged on one side of both first button and second button close to the sliding block; a third hollow chamber is arranged in a helmet main body; a cooler is fixedly arranged in the third hollow chamber; the second button is electrically connected with the cooler; a horizontal plate is fixed in the helmet main body under the third hollow chamber; an air vent is formed in the horizontal plate; a fan is fixedly arranged on the third hollow chamber; and the first button is electrically connected with the fan. According to the invention, the swelling block, the sliding block, the fan and the cooler are arranged, so that the temperature of the helmet main body can be adjusted, the manufacturing cost of the helmet can be lowered and the practicability is higher.

The invention provides an LED lamp and a power circuit thereof. The power circuit comprises a driving chip and also comprises a temperature control circuit, wherein the driving chip is used for outputting a current to an LED light-emitting chip, an output end of the temperature control circuit is used for outputting an analogue voltage signal to a dimming pin of the driving chip, the temperature control circuit comprises a positive temperature coefficient thermistor and a negative temperature coefficient thermistor which are connected in series, a first end of the positive temperature coefficient thermistor is a high-level end, a second end of the positive temperature coefficient thermistor is connected with a first end of the negative temperature coefficient thermistor, a second end of the negative temperature coefficient thermistor is a low-level end, an output end of the negative temperature coefficient thermistor is connected with the second end of the positive temperature coefficient thermistor. The LED lamp is provided with the power circuit and the LED light-emitting chip. By the power circuit, the temperature of the LED lamp can be effectively controlled within a preset temperature range, excessively high temperature of a cooling shell of the LED light-emitting chip and the LED lamp is prevented, and the actual power of the LED lamp can be improved.

The invention relates to the technical field of furniture, and discloses a multifunctional office table which comprises a table body, a cavity is formed in the lower portion of the table body, drawersare arranged on the upper portion and the two sides of the table body, a rest bed is horizontally connected into the cavity of the table body in a sliding mode, and a temperature adjusting mechanismis installed on the table body. The rest bed comprises a body and a temperature cavity formed in the body, the temperature cavity is communicated with the temperature adjusting mechanism, a pluralityof supporting shafts are fixed in the temperature cavity, and each supporting shaft is sleeved with a hollow massage sleeve which is vertically connected with the body in a sliding mode; a plurality of air holes communicated with the massage sleeve are formed in the upper portion of the massage sleeve, an elastic piece arranged on the supporting shaft in a sleeving mode is arranged on the lower portion of the massage sleeve, a plurality of communicating holes are formed in the side wall of the massage sleeve, and when the massage sleeve slides downwards into the temperature cavity, the massagesleeve is communicated with the temperature cavity through the communicating holes. The office table is simple in structure, the rest bed is integrated on the office table, the space of the table body is fully utilized, and the temperature adjusting mechanism is arranged to adjust the rest bed, so that an operator feels comfortable.

The invention provides a temperature control cup which comprises a cup body and a temperature control device. The cup body comprises at least two inner containers. Each inner container is provided with a water pipe communicated with the inner container. The water pipes are communicated with a mixing channel after being converged. The temperature control device comprises electric valves arranged onthe water pipes. Temperature sensors are arranged in the water pipes and the mixing channel. The temperature sensors and the electric valves are all connected with a microcontroller. The output watertemperature can be adjusted within the common drinking water temperature, temperature control is rapid and accurate, there is no need to wait, and the temperature of output water is the required temperature.

The invention discloses an air outlet temperature and air direction adjustment device for a roller disc type coal mill, belonging to the technical field of coal mills. One end is connected with an exhaust pipe, and the other end of the exhaust pipe is provided with an air direction adjustment port. The present invention is provided with a temperature adjustment cylinder that can adjust the temperature. The driving gear rotates through the working rotation of the motor, the driving gear drives the ring gear to rotate, and the ring gear rotates. The transmission gear is driven to rotate, the fixed frame connected with the transmission gear rotates, the refrigeration end or the heating end of the semiconductor refrigerating sheet is turned, and the semiconductor refrigerating sheet performs cooling or heating, so as to achieve the purpose of temperature regulation; The length of the electric push rod is different, and the length of the four electric push rods is different, and the electric push rod and the rotating seat are rotated to change the angle of the outlet pipe, and the telescopic cover is stretched to avoid gas leakage and realize wind direction adjustment.

The invention discloses a protecting helmet which comprises a helmet brim and a helmet shell, wherein a first hollow chamber is formed in the helmet brim; a second hollow chamber which is communicated with the first hollow chamber is formed in the helmet shell; a heat conducting block is arranged on the helmet brim; a swelling block which is resisted against the heat conducting block is filled in the first hollow chamber; a sliding block is resisted against the swelling block; the sliding block is in sliding connection with the interior of the second hollow chamber; a first button and a second button are arranged in the second hollow chamber; wedge surfaces are arranged on one side of both first button and second button close to the sliding block; a third hollow chamber is arranged in a helmet main body; a cooler is fixedly arranged in the third hollow chamber; the second button is electrically connected with the cooler; a horizontal plate is fixed in the helmet main body under the third hollow chamber; an air vent is formed in the horizontal plate; a fan is fixedly arranged on the third hollow chamber; and the first button is electrically connected with the fan. According to the invention, the swelling block, the sliding block, the fan and the cooler are arranged, so that the temperature of the helmet main body can be adjusted, the manufacturing cost of the helmet can be lowered and the practicability is higher.

The invention discloses a municipal building with a high-rise automatic ventilation and temperature control structure. The municipal building can rely on the wind pressure caused by the indoor and outdoor wind force or the thermal pressure caused by the temperature difference between indoor and outdoor to make the air in the upper room and the lower room flow naturally under the action of negative pressure, forming natural ventilation and relatively turbid air It is sucked into the purification cylinder by the horizontal air supply duct through the induced draft fan, and the harmful impurities in the air are adsorbed by the adsorption layer. The air outlet is discharged into the bottom cavity, and at the same time, there is a ventilation net between the upper cavity and the bottom cavity, and the air can rise to the upper cavity for ventilation with the action of wind pressure, and the air intake is used again when it becomes dirty air. The cannula enters the purification cylinder to complete the ventilation cycle.

The invention provides a temperature control system of a near space sealed cabin. The temperature control system comprises a cabin wall heat exchanger, a cold accumulation heat exchanger, a first bypass pipeline, a gas-liquid heat exchanger and an acquisition controller, wherein the cabin wall heat exchanger is arranged on a cabin wall of the sealed cabin for obtaining an out-cabin cold source; the cold accumulation heat exchanger is internally provided with a cold accumulation working medium, connected with an output end of the cabin wall heat exchanger through a liquid pipeline at an input end and provided with a first control valve at the input end or an output end; the first bypass pipeline is connected to two ends of the cold accumulation heat exchanger in parallel through liquid pipelines and provided with a second control valve; the gas-liquid heat exchanger is used for exchanging heat with the internal part of the cabin, connected with an output end of the cold accumulation heat exchanger through a liquid pipeline at an input end and connected with the input end of the cabin wall heat exchanger through a liquid pipeline at an output end; and the acquisition controller is used for controlling the first control valve and the second control valve. The temperature control system can satisfy temperature demands of a near space sealed cabin manned flight in ascending, stop and descending processes, and solves the problem of influence on the in-cabin temperature by external environment change distance.

The invention discloses an air conditioner. The air conditioner comprises a base plate, a shell, an outdoor unit assembly and an indoor unit assembly; the base plate is located outside a to-be-adjusted temperature area; the shell is located outside the to-be-adjusted temperature area, and an inner cavity is enclosed by the shell and the base plate, a partition plate is arranged in the inner cavity, so that the inner cavity is isolated to form a first containing cavity and a second containing cavity; the outdoor unit assembly is internally arranged in the first containing cavity and comprises afirst heat exchanger and a compressor which are in mutual communication, and the lower end of the first heat exchanger and the lower end of the compressor are connected to the base plate; the indoorunit assembly comprises a second heat exchanger, an air inlet part and an air outlet part, the second heat exchanger is internally arranged in the second containing cavity to isolate the second containing cavity into a first heat exchange cavity and a second heat exchange cavity which are independent from each other; and the air inlet part is arranged at the lower part of the shell and is in communication with the first heat exchange cavity, the air outlet part is arranged at the upper part of the shell and is in communication with the second heat exchange cavity, and the air inlet part and the air outlet part are in communication with the to-be-adjusted temperature area. According to the technical scheme of the air conditioner, the structure of the air conditioner can be simpler so as toreduce the indoor occupied space .

The invention relates to the technical field of office supplies, and discloses an automatic temperature adjustment office chair with an adjustable backrest angle. The chair comprises a chair seat anda backrest, a rotating wheel is movably connected to the joint of the chair seat and the backrest, an adjusting device is arranged in the rotating wheel, a telescopic air guide pipe and a lifting device are fixedly connected to the bottom of the chair seat, and a base is fixedly connected to the lower end of the lifting device. A motor and a temperature sensing device are arranged at the bottom ina cavity of the base, a worm is movably connected to the output end of the motor, an exhaust fan is fixedly connected to the right end of the worm, a gear is connected to the upper portion of the worm in a meshed mode, and a bevel gear is connected to the rim of the upper portion of the gear in a meshed mode. According to the automatic temperature adjustment office chair capable of adjusting thebackrest angle, a thermistor and a heating device are arranged, and devices such as a built-in ratchet wheel and a handle are arranged on the chair in a matched mode, so that the purposes of adjustingthe backrest angle of the chair according to personal habits and automatically adjusting the temperature of the chair are achieved.

The invention discloses an air outlet temperature and air direction adjusting device for a roller disc type coal mill, and belongs to the technical field of coal mills. The air outlet temperature and air direction adjusting device comprises an air inlet pipe, one end of the air inlet pipe is connected with a temperature adjusting cylinder, the other end of the temperature adjusting cylinder is connected with an exhaust pipe, and the other end of the exhaust pipe is provided with an air direction adjusting opening. Due to the fact that the temperature adjusting cylinder capable of adjusting the temperature is arranged, a motor works and rotates to enable a driving gear to rotate, the driving gear drives an annular gear to rotate, the annular gear drives a transmission gear to rotate, a fixing frame connected with the transmission gear rotates, the refrigerating end or the heating end of a semiconductor chilling plate steers, and the semiconductor chilling plate conducts refrigeration or heating. The purpose of temperature regulation is achieved. According to the air outlet temperature and air direction adjusting device for the roller disc type coal mill, the lengths of electric push rods can be telescopically adjusted by arranging the air direction adjusting opening, the lengths of the four electric push rods are different, and the electric push rods and a first rotating base rotate, so that the air outlet pipe rotates to change the angle, a telescopic cover telescopes to avoid gas leakage, and air direction adjustment is achieved.

The invention relates to a purification, disinfection, humidification, dehumidification and temperature adjustment device which comprises a master purification, disinfection, humidification, dehumidification and temperature adjustment all-in-one machine and a plurality of slave purification, disinfection, humidification, dehumidification and temperature adjustment all-in-one machines. The master purification, disinfection, humidification, dehumidification and temperature adjustment all-in-one machine is of the same structure as the slave purification, disinfection, humidification, dehumidification and temperature adjustment all-in-one machines. An intelligent master control module is arranged in each machine frame and comprises a serial communication interface I, a serial communication interface II and a serial communication interface III. The slave purification, disinfection, humidification, dehumidification and temperature adjustment all-in-one machines are connected to the serial communication interface II of the master purification, disinfection, humidification, dehumidification and temperature adjustment all-in-one machine through the corresponding serial communication interfaces III.

The invention discloses an insulated pure electric passenger car fuel cell box with temperature adjustment performance, which includes a box body, the box body is made of a silicon carbide composite material, and the preparation process is as follows: the silicon carbide and a porogen are mixed uniformly according to a certain ratio, Then add ethanol solvent for grinding, grind evenly, dry, and sinter to obtain macroporous silicon carbide; take silicon powder, macroporous silicon carbide, water, binder and anti-precipitation agent, stir at high speed to obtain a mixed material, and then place the mixed material in Press molding in the mold, dry the green body, and then carry out nitriding sintering in the nitriding chamber to obtain a box with a rough surface; the box is soaked in liquid paraffin, then the box is taken out to cool and polished, and finally the surface of the box is Spray a coat of paint. The battery case of the present invention is prepared from a silicon carbide composite material and has a certain strength. At the same time, because the surface of the case body is dipped with liquid paraffin, and the surface of the case body is coated with a layer of paint, the prepared battery case has good temperature and temperature. thermal conductivity.