79results about How to "Achieve thermal management" patented technology

The invention provides a control system for heat management of an electric vehicle. The control system is characterized in that the system comprises a refrigerant circulating system, a coolant circulating system and a battery pack temperature control system, wherein the refrigerant circulating system is communicated with the battery pack temperature control system via a water cooler, and the coolant circulating system is communicated with the battery pack temperature control system via a three-way water valve, so the three systems form an intercommunicating and circulating control system to control the temperature in the carriage and the working temperature of the electrical devices of the battery pack. The control system has the following positive effects: effective heat management can be carried out on each part of the electric vehicle; the problem of heating difficulty of the electric vehicle is solved by adopting the residual heat of the electrical devices in an economical and energy-saving manner; preheating and cooling of the power battery of the electric vehicle are well controlled; and the working temperature of the battery and electrical devices of the electric vehicle can be controlled, thus realizing complete heat system management of the electric vehicle.

The invention relates to a thermal management system for a pure electric vehicle, which is characterized in that it includes an electric drive system and a charger cooling circuit, a power battery cooling circuit, a power battery charging heating circuit, a passenger compartment heating circuit and a passenger compartment refrigeration circuit; The electric drive system and charger cooling circuit includes radiators, fans, kettles connected by pipelines, the electric drive system and charger cooling water pump installed in the circuit, as well as the motor controller and DCDC, as well as the charger and motor. The radiator realizes liquid-gas heat exchange to cool the heat dissipation components. Improve the environmental adaptability of electric vehicles, the power performance in high-temperature environments, the durability of key components, and the energy utilization efficiency of the entire vehicle.

The invention discloses an electric automobile battery pack heat management and temperature balancing control method. According to the electric automobile battery pack heat management and temperaturebalancing control method, a battery module, a battery box, a BMS and a warning device are provided; a heating film is arranged at the periphery of the battery module; a plurality of temperature sensors are distributed in the battery box equidistantly and a plurality of fans capable of controlling rotation angles are arranged in the battery box; and the BMS evaluates the stage of the battery by monitoring the temperature of the battery pack through the temperature sensors, and performs heat management on the battery pack by taking 0 DEG C, 33 DEG C and 53 DEG C as temperature control thresholdvalues and combining temperature increasing rate and temperature difference as judgment conditions, wherein the temperature of the battery pack is maintained within the work range by the measures of selectively heating the heating film as well as accurately controlling the rotation angle of the fans, the starting time and the cooling air quantity. By the method, too high temperature increment andtoo large temperature difference of the battery are effectively avoided, battery temperature change stability and balanced characteristics are guaranteed and the service life of the lithium battery isprolonged.

The invention, which belongs to the technical field of integrated circuit packaging, relates to a three-dimensional active heat-dissipation packaging structure of an embedded micro channel and a manufacturing process thereof. The three-dimensional active heat-dissipation packaging structure comprises a three-dimensional packaging structure. A micro channel chip structure unit is arranged at the top layer of the three-dimensional packaging structure and includes an IC chip having an embedded micro flow structure and a micro channel cover plate. A two-dimensional heterogeneous integrated structural unit is arranged at the bottom layer of the three-dimensional packaging structure and includes a TSV adapter board connected with a bottom filling layer through array salient points and an IC chip; the micro channel chip structure unit and the two-dimensional heterogeneous integrated structural unit are connected with the bottom filling layer through the array salient points; and then packaging with an embedded micro channel substrate and a housing is carried out to form a three-dimensional active heat-dissipation packaging structure. Therefore, the inter-layer thermal resistance of the three-dimensional packaging system is reduced substantially; the heat dissipation capability of the circuit is improved effectively; and the high-density and high-performance three-dimensional system-level packaging is enhanced and the safety and reliability are high.

The invention provides a thermal management system, a battery thermal management system, an electric vehicle and a hybrid power vehicle. The thermal management system comprises a heating/refrigerating loop and a heat/cold storage loop which exchanges heat with the heating/refrigerating loop, wherein a circulating medium of the heat/cold storage loop is a phase change cold storage material; when the heating/refrigerating loop is in a heating mode and the temperature of the circulating medium of the heat/cold storage loop is not lower than the phase change temperature, the heating/refrigerating loop stops heating; when the heating/refrigerating loop is in a refrigerating mode and the temperature of the circulating medium of the heat/cold storage loop is not higher than the phase change temperature, the heating/refrigerating loop stops refrigeration. According to the thermal management system, the purpose of thermal management can be achieved.

The invention discloses a fluidization enhanced heat transfer method and a fluidization multiphase heat transfer medium. The heat transfer process is enhanced by adding particles inside a supercritical flow body. The technique can be widely applied to an air conditioner, a heat pump, a heat pipe, the heating, the cooling of an internal-combustion engine, an electronic device and the cooling of a power device, raises the energy utilization rate of the whole system, improves the heat control of the system and increases the thermal management ability.

The invention provides a complete car controller for a formula student full electrical sports car. The complete car controller comprises a complete car electrical control CPU, a complete car DC-DC conversion module, an accelerator pedal signal processing circuit, a brake pedal signal processing circuit, a liquid crystal display control system, a complete car CAN communication network, a complete car fault treatment system, an activating indicating lamp driving circuit, a start-up whistle driving circuit, a program conversion treatment circuit and a thermal management system, as well as a high-voltage safety system; the high-voltage safety system comprises a power battery high voltage output-input circuit and control, a driving motor high voltage output-input circuit and control, a high voltage safety control system and a simple and reliable pre-charge and discharge system. According to the invention, power control, energy control, high-voltage safety control, warning information control and heat management of a power driving system for a complete car of the full electrical formula sports car are realized to allow the formula student full electrical sports car to run stably, safely, and efficiently.

The invention discloses a supercritical multiphase enhanced heat transfer method and a heat transfer medium. The method is to add an auxiliary phase change heat transfer material to a basic heat transfer medium, so as to ensure that: when no phase change heat transfer is carried out in the working temperature range of the basic heat transfer medium, the auxiliary phase change heat transfer material carries out phase change heat transfer; when the basic heat transfer medium carries out phase change heat transfer, the auxiliary phase change heat transfer material carries out phase change heat transfer at the phase change temperature lower than a basic phase change heat transfer medium. The method and the medium can realize the integral thermal control and thermal management on heat transfer.

The embodiment of the invention provides a potting heat dissipation device and a power source device, and belongs to the technical field of battery heat management. According to the potting heat dissipation device, heat conducting potting adhesive located around battery single bodies and injected in a battery module is used for absorbing heat dissipated by the battery single bodies, and the heat absorbed by the heat conducting potting adhesive is transferred to a heat dissipating plate through heat conducting tubes, wherein one end of each heat conducting tube is arranged in the heat conducting potting adhesive, and the other end of each heat conducting tube makes contact with the heat dissipating plate; the heat is dissipated by the heat dissipating plate to achieve heat dissipation management on the battery module. Compared with an existing heat dissipation structure of an electromobile power battery, the potting heat dissipation device is simple in structural design, low in manufacturing cost and good in overall heat dissipation effect.

The invention discloses a self-circulating heat management and power generation system for a lunar base. Specifically, liquid saturated organic working media are sent to a cold plate or a directionalsolar collector by a working medium pump and are heated to a saturated or superheated steam state, then a turbine is pushed to rotate so as to drive generating load to generate power, gas working media flow into an ejector after going out of the turbine, gas on the outlet side of a refrigeration evaporator is injected into the ejector, the gas working media and the gas are mixed and diffused in the ejector and then enter a directional space radiator so as to release heat to the space and coagulate in a liquid state, a part of the liquid working media enter the working medium pump again so as to complete the power generating circulation, and the other part of the liquid working media are cooled and depressurized through a throttle valve and return to the refrigeration evaporator again so asto complete the refrigeration cycle. The self-circulating heat management and power generation system can be operated on the moon at daytime or polar day and at night or polar night, own power consumption is satisfied, additional power supply and cold supply are provided for the base, and the power demand of the lunar base is effectively saved.

The invention relates to a vehicle thermal management system, a control method thereof and a vehicle. The vehicle heat management system comprises a battery and electric drive heat management system and an engine and warm air core body heat management system. The battery and electric drive heat management system exchanges heat with the air conditioning system and the engine and warm air core bodyheat management system through the first heat exchanger and the second heat exchanger respectively; the engine and warm air core body heat management system comprises an engine, a second heat exchanger, a first radiator and a warm air core body used for heating a passenger compartment and has a first communication mode, a second communication mode, a third communication mode and a fourth communication mode, and in the first communication mode, the engine, the second heat exchanger, the warm air core body and the first radiator are connected in series to form a loop; in the second communicationmode, the engine, the second heat exchanger and the first radiator are connected in series to form a loop; in the third communication mode, the engine, the warm air core body and the first radiator are connected in series to form a loop; and in the fourth communication mode, the engine and the first radiator are connected in series to form a loop.

The invention aims to provide a supercritical phase change heat transfer enhancement method, as well as a working medium and application thereof. The method ensures that heat transfer media become multiphase to enhancing the heat transfer capacity of supercritical heat transfer media by adding phase change matter to basic supercritical matter, so as to realize the objective of enhancing the heat transfer capacity of a system, thermal control and thermal management. The phase change matter added in realizes the objective of enhancing heat transfer through atomization or phase change.

The invention discloses a method for monitoring a battery pack of an electric automobile. The method comprises the following steps: acquiring the temperature and a state-of-charge (SOC) value of the battery pack by a battery management system; judging whether a heat management operation of the battery pack is started or not according to the temperature and the SOC value of the battery pack; and if so, starting the heat management operation of the battery pack, and transmitting the current SOC value of the battery pack to a user terminal through a remote server. According to the method and the system disclosed by the invention, the heat management of the battery pack is realized; the SOC value of the battery pack can be timely acquired by the user terminal; a user can timely acquire the information of the battery pack; and the reliability and the safety of the battery pack are improved.

The invention provides a vehicle and a thermal management system thereof, and relates to the field of vehicles. The technical problem that an air conditioning system and a power source cooling systemof an existing vehicle are not related to each other or have insufficient correlation is solved. According the adopted scheme, the thermal management system of the vehicle comprises a heat pump air conditioning circuit, a power source cooling circuit and an intermediate heat exchanger; the power source cooling circuit is used for dissipating heat of a motor system of the vehicle or recycling the heat of the motor system; and the heat pump air conditioning circuit exchanges heat with the power source cooling circuit through the intermediate heat exchanger so as to exchange heat between a refrigerant in the heat pump air conditioning circuit and cooling medium of the power source cooling circuit. According to the technical scheme, the heat in the system can be distributed regardless of whether the vehicle runs or charges, integrated heat management of a power source device and an air conditioning system is realized, high temperature waste heat generated by a motor under high load is effectively recycled, use of the waste heat is realized, and the efficiency of the heat pump air conditioning system is improved.

Embodiments of the invention provide a supporting apparatus, a battery module and a power supply system. The supporting apparatus comprises supporting parts which are arranged in the battery module and used for supporting corresponding single batteries; each supporting part comprises a first cavity; a liquid inlet connected with the first cavity is formed in one end of each supporting part while a liquid outlet connected with the first cavity is formed in the other end of the supporting part; and a thermal management liquid input from the exterior enters the first cavity of the supporting part from the liquid inlet and then is discharged from the liquid outlet, so as to perform thermal management on each single battery of the battery module.

The invention discloses a packaging structure of a silicon photonic optical module and a packaging method thereof. The packaging structure of the silicon photonic optical module comprises a PCBA circuit board, a CuW base, a CuW cover, a silicon photonic chip emitting unit, a silicon photonic chip receiving unit, a driving chip, a transimpedance amplifier chip and a semiconductor refrigerator (TEC), wherein the PCBA circuit board has a windowing region; edges of the lower surface of the windowing region form a fourth mating surface; the upper surface of the PCBA circuit board has a fifth matingsurface and a sixth mating surface near the windowing region; edges of the upper surface of the CuW base form a first mating surface; the CuW base further has a second mating surface and a third mating surface; and the first mating surface and the fourth mating surface are adhered by means of a UV curing glue. The packaging structure has the beneficial effects of using the CuW structural member and a nozzle with a height control function to eliminate the height difference of patches between the silicon photonic chip and the IC chip, thereby reducing the bonding length of gold wires between different chip pads.

The invention discloses a liquefied natural gas (LNG) engine energy recovery device and an energy recovery method based on the thermoelectric power generation technology. The LNG engine energy recovery device comprises a thermoelectric generator, wherein an air discharge outlet of an LNG tank is connected with the thermoelectric generator through an LNG air inlet pipe, and an LNG air outlet pipe of the thermoelectric generator is connected with a mixer after assign through a filter and a voltage stabilizer. According to the LNG engine energy recovery device and the energy recovery method based on the thermoelectric power generation technology, the LNG gasification function is achieved, energy recovery is achieved by using the thermoelectric power generation technology, waste heat energy of an engine is used, peculiar cold energy of an LNG vehicle is used, energy recover efficiency is improved to the maximum degree, fuel economy of the vehicle is improved, and heat management of the LNG engine can be achieved due to the fact that intake air temperature of the engine can be controlled by adjusting parameters such as flow of cooling liquid and load of the thermoelectric generator.

The invention discloses a preparation method of a smart fabric based on silk artificial muscles. By the aid of the hygroscopicity of silk, the silk is prepared into the humidity-sensitive silk artificial muscles, and the silk artificial muscles are knitted into the fabric to achieve smart functions. The preparation method includes the processes of silk yarn preparation, silk artificial muscle preparation, heat setting and the like, finally, the obtained silk artificial muscles and silk yarns are subjected to plain weaving to obtain the smart fabric, warp yarns are silk artificial muscle arranged yarns, and weft yarns are degumming silk arranged yarns. The silk artificial muscles are sensitive to environment humidity, can spontaneously sense humidity change and respond, and can absorb waterand contract lengths in a humid environment, and the lengths of the silk artificial muscles are restored in a dry environment. Therefore, when a human body with a large sweating quantity needs timelysweat discharge, the fabric prepared from the artificial muscles can sense sweat and facilitate sweat discharge of the human body by length contraction, and human body humidity and heat management isrealized. After the sweat is discharged, the length of the fabric restores when the human body is dry, and more comfort is provided for a wearer.

A controller for a hot melt adhesive dispensing system has a main circuit board and power modules which are removably received on a controller enclosure. The power modules are directly couplable with the main board and with cord sets from heated hoses of the dispensing system, eliminating the need for wiring harnesses to be routed between these components. Accordingly, the main board and power modules may be readily removed and replaced in the field to permit efficient servicing and modification of the system to accommodate the needs of various applications.

The invention discloses an electric vehicle thermal management system, method and apparatus, belonging to the technical field of electric vehicles. The electric vehicle thermal management system is characterized in that the first end of a compressor in the system is connected to an exterior heat exchanger through a reversing valve, and a stop valve is arranged on a connecting passage with the exterior heat exchanger; the second end of the compressor is connected to a battery heat exchanger through the reversing valve, and a stop valve is arranged on the connecting passage; the exterior heat exchanger is connected with an electric heater and a heat exchanger in turn; the heat exchanger is connected to the battery heat exchanger through an expansion valve, and the heat exchanger is in parallel connection with a power system liquid cooling loop through a three-way valve; the system realizes thermal management of the battery by controlling the reversing valve, each stop valve and each expansion valve; and in the thermal management process, the exterior heat exchanger is heated by controlling the three-way valve and/or the electric heater when the exterior heat exchanger is required tobe heated. The electric vehicle thermal management system can achieve the defrosting effect, so that the exterior heat exchanger can work stably to ensure the stability of the system performance and improve the thermal management efficiency.

The present invention discloses one kind of fluidized multiphase forced heat transfer method and heat transfer medium. Auxiliary phase change heat transfer matter is added into base heat transfer medium, so that within the temperature range without phase change heat transfer of the base heat transfer medium, the auxiliary phase change heat transfer matter performs phase change heat transfer, and while phase change heat transfer of the base heat transfer medium, the auxiliary phase change heat transfer matter performs phase change heat transfer under the temperature lower than the phase change temperature of the base phase change heat transfer medium. The said heat transfer method and heat transfer medium makes it possible to realize overall heat transfer control and management.

The invention relates to a thermal management based piston ring-cylinder liner low friction experimental system and a use method thereof. The thermal management based piston ring-cylinder liner low friction experimental system is characterized by comprising a cylinder liner fixing and heat transfer device for piston ring-cylinder liner fixing and heat transfer, a constant-temperature lubricant passage for providing constant-temperature lubricant for the system and a speed adjusting motor for driving a crank-connecting rod mechanism and a piston ring-cylinder liner assembly, wherein the cylinder liner fixing and heat transfer device comprises longitudinal fixing plates, clamps, cylinder liner electric heaters, a piston ring electric heater, cylinder liner thermocouples, a piston ring thermocouple and radial elastic fixing rings, the longitudinal fixing plates are symmetrically arranged on the left and right sides of a cylinder liner respectively, the cylinder liner is fixed between upper and lower inner surfaces of each longitudinal fixing plate, pretension bolts are mounted at upper and lower ends of each longitudinal fixing plate, and pressure sensors are arranged on end surfaces, contacted with the cylinder liner, of the longitudinal fixing plates; a plurality of cylinder liner electric heaters are distributed on the outer side of the cylinder liner uniformly in the height direction of the cylinder liner.