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55results about How to "Improve thermal management efficiency" patented technology
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Three-dimensional mesophase pitch-based carbon/carbon composite material with high heat conductivity and preparation technology thereof
The invention relates to a three-dimensional mesophase pitch-based carbon / carbon composite material with high heat conductivity and a preparation technology thereof. The preparation technology comprises the following steps: firstly, by taking a mesophase pitch-based carbon fiber cloth with high heat conductivity as a reinforced body in the XY direction and a high-modulus carbon fiber as a reinforced fiber in the Z direction, preparing three-dimensional carbon fiber fabric with high heat conductivity by adopting a carbon cloth puncturing technology; secondly, by taking mesophase pitch as a precursor of matrix carbon, performing densifying treatment on the three-dimensional carbon fiber fabric with high heat conductivity by adopting a dipping / carbonizing technology; finally, performing graphitization treatment at a high temperature of 2800 DEG C above on the obtained materials, so as to obtain the three-dimensional mesophase pitch-based carbon / carbon composite material with high heat conductivity. Through the adoption of the technology method, the heat conductivity, modulus and dimensional stability of the carbon / carbon composite material are greatly improved, and the highest heat conductivity reaching 3600 w / mK of the material in the XY direction is increased by more than 5 times as compared with the common three-dimensional carbon / carbon composite material.
Owner:AEROSPACE RES INST OF MATERIAL & PROCESSING TECH +1
Power battery thermal management system for electric vehicle
The invention belongs to the technical field of power battery systems for electric vehicles and in particular relates to a power battery thermal management system for an electric vehicle. The power battery thermal management system comprises a battery box, a lithium ion battery system, an air cooling system and a water cooling system, wherein the lithium ion battery system, the air cooling system and the water cooling system are installed in the battery box, the battery box is internally provided with a heat insulation device, and the heat insulation device is adhered to the inner wall of the battery box. According to the power battery thermal management system disclosed by the invention, as heat insulation is installed in the battery box as a thermal management mode of a battery system of the electric vehicle in a non-running state, and the air cooling system and the water cooling system are arranged as a thermal management mode of the battery system of the electric vehicle in a running state, the service life loss and the safety hidden dangers as the battery system of the electric vehicle is in high or low temperature environment for a long time can be reduced; the temperature in a battery pack is not too high or low when the vehicle runs, and the thermal management efficiency of the vehicle during running is also improved.
Owner:DONGFENG MOTOR CORP HUBEI
Thermal management system of BEV (battery electric vehicle) and air conditioning system
PendingCN106828022AReduce energy consumptionShort reaction timeAir-treating devicesVehicle heating/cooling devicesNew energySolenoid valve
The invention discloses a thermal management system of a BEV (battery electric vehicle) and an air conditioning system. The thermal management system comprises a battery pack thermostat and a water heater, wherein an inlet of the water heater is connected with an outlet of a dynamic cooling system through a first water pump, an outlet of the water heater is connected with an inlet of a heating core of the air conditioning system of the vehicle, an outlet of the heating core is connected with a first inlet of a first water tank, and an outlet of the first water tank is connected with an inlet of the dynamic cooling system; the outlet of the heating core is connected with a first inlet of the battery pack thermostat through a third solenoid valve, the heating core is used for providing a heat source for the battery pack thermostat, a first outlet of the battery pack thermostat is connected with a second inlet of the first water tank, and the first inlet of the battery pack thermostat is communicated with the first outlet. The thermal management system not only can realize the heating requirement of an air conditioner of a new energy vehicle, but also can use a small amount of electric energy, recover waste heat of a motor for reheating and realize thermal balance between a heating system and a cooling system of a battery system.
Owner:四川航勰汽车空调有限公司
Thermal management system for battery and control method thereof, and air-conditioning system of vehicle
ActiveCN108199114AStable temperatureExtended service lifeCell temperature controlVehicular energy storageEngineeringThermal management system
The invention discloses a thermal management system for a battery and a control method thereof, and an air-conditioning system of a vehicle. The thermal management system for the battery comprises a first heat storage device, which comprises a phase-change material packed in the first heat storage device and is internally provided with a battery pack; a circulation pipeline, which is internally provided with a heat exchange medium; a heating device, which is used for heating a heat exchange medium in the circulation pipeline; a heat dissipation device, which is used for heat dissipation of theheat exchange medium in the circulation pipeline; a heat exchange container, which is used for storing the heat exchange medium; and a circulation pump, which is arranged in the circulation pipeline,located between the heat exchange container and the first heat storage device, and used for circulating the heat exchange medium. According to the invention, the first heat storage device utilizes the phase-change material for heat storage; when the temperature of the heat exchange medium is too high or too low, heating and heat dissipation can be respectively performed by the heating device or the heat dissipation device, so the temperature of the battery pack is maintained constant, the service life of the battery pack is prolonged, and the thermal management efficiency of the battery packis improved.
Owner:GLOBAL ENERGY INTERCONNECTION RES INST EURO GMBH +3
Whole-vehicle thermal management system of electric vehicle and control method of whole-vehicle thermal management system
PendingCN112848842ARealize managementImprove thermal management efficiencyAir-treating devicesElectric propulsion mountingElectrical batteryElectric cars
The invention discloses an electric vehicle thermal management system and a control method thereof, and relates to the technical field of electric vehicle thermal management. The system comprises a heat pump air conditioner loop, a battery pack heat management loop and a motor electric control cooling loop; in theheat pump air conditioner loopa heating loop is used for heating a passenger compartment and a battery pack of the electric automobile, and an electric heater is communicated with a water cooling condenser; the battery pack heat management loop is used for adjusting the temperature of a battery pack in the electric vehicle, and the battery pack heat management loop is communicated with the heating loop; and the motor electric control cooling loop is used for cooling a driving motor of the electric vehicle. The heat pump air conditioner loop, thebattery pack heat management loop and the heat management loop of the passenger compartment are integrated, the purpose of overall management of heat in the passenger compartment and the battery pack is achieved, and the heat management efficiency of the whole vehicle is improved.
Owner:广州高澜创新科技有限公司
Control method of automobile comprehensive thermal management system
ActiveCN110329113AMeeting Thermal Management NeedsIncreased cruising range capabilityAir-treating devicesSecondary cellsPower batteryEngineering
The invention discloses a control method of an automobile comprehensive thermal management system. The control method comprises the following steps that a comprehensive thermal management controller acquires the temperature of cooling liquid in a motor cooling loop and the average temperature of a power battery; if the temperature of the cooling liquid in the motor cooling loop reaches the high temperature of a motor or the average temperature of the power battery reaches the high temperature of the battery, the refrigeration mode is started, the motor cooling loop is neutralized or the cooling liquid in the battery cooling loop is cooled until the temperature of the cooling liquid in the motor cooling loop is lower than the cooling cut-off limit value of the motor, and the average temperature of the power battery is lower than the cooling cut-off limit value of the battery; and if the average temperature of the power battery is lower than the low temperature of the battery, the heating mode is started, the cooling liquid in the battery heating loop is heated by utilizing the heat generated in the automobile comprehensive thermal management system until the average temperature of the power battery is higher than the heating cut-off limit value of the battery, and then the shutdown mode is executed.
Owner:XIAMEN KING LONG UNITED AUTOMOTIVE IND CO LTD
Thermal management system and thermal management method, and unmanned aerial vehicle applying thermal management system
ActiveCN105939930AImprove cooling efficiencyImprove thermal management efficiencyPower plant cooling arrangmentsCell temperature controlPropellerThermal management system
The present invention discloses an unmanned aerial vehicle comprising a body. The body is provided with an accommodating cavity, an air intake and an air outlet, and the air intake and the air outlet are communicated with the accommodating cavity. The air intake is used for suction of air flow generated by a propeller of the unmanned aerial vehicle, and the air flow can flow out from the air outlet via the accommodating cavity. The present invention also provides a thermal management system and a thermal management method, and an unmanned aerial vehicle applying the thermal management system. Thermal dissipation efficiency of the unmanned aerial vehicle is relatively high.
Owner:SZ DJI TECH CO LTD
Power battery heat management method and device
The invention discloses a power battery heat management method and a device. The method comprises the following steps of: storing a power battery into a device formed by a box body and an upper cover; fully distributing phase-change materials in a closed cavity in the box body at the periphery of the battery; absorbing heat generated by a use process of the battery according to the change of a crystal phase of the phase-change materials in a surrounding temperature changing process; enabling the battery to work under a relative constant-temperature environment due to the heat insulation property of the phase change materials so as to effectively realize the effect of heat management in a working process of the battery, alleviate the influences on a battery performance by heat change caused by the battery or the outside, and greatly improve the use performance of the battery.
Owner:NANJING SHUANGDENG SCI TECH DEV RES INST
Integrated thermal management module for vehicle
ActiveUS20210053415A1Compact formImprove thermal management efficiencyAir-treating devicesSecondary cellsHeat managementElectrical battery
An integrated thermal management module may include a first pump for flowing coolant of an indoor heating line for connecting a first heat exchanger heat-exchanged with a condenser of a refrigerant line and an indoor air-conditioning heating core, a second pump for flowing coolant of an indoor cooling line for connecting a second heat exchanger heat-exchanged with an evaporator of a refrigerant line and an indoor air-conditioning cooling core, a fourth pump for flowing coolant of a battery line for connecting a high-voltage battery core and a third radiator, a first valve simultaneously connected to a second radiator line for connecting the first heat exchanger and a second radiator, the indoor heating line, and the battery line to change flow direction of the coolant, and a second valve simultaneously connected to the indoor cooling line and the battery line to change flow direction of the coolant.
Owner:HYUNDAI MOTOR CO LTD +2
Automobile comprehensive heat management system
PendingCN110329112AAvoid lossAvoid enduranceAir-treating devicesSecondary cellsPower batteryHeat management
The invention discloses an automobile comprehensive heat management system which comprises a motor cooling loop and a battery heat management system, wherein the motor cooling system comprises a firstwater pump, an all-in-one controller, a heat exchanger, a first three-way pipe, a radiator and a first electronic three-way valve which are sequentially connected end to end. A battery heat management loop comprises a battery cooling loop and a battery heating loop, wherein the battery cooling loop comprises a power battery, a second three-way pipe, a second water pump, a heat exchange plate anda second electronic three-way valve which are sequentially connected end to end; and the battery heating loop comprises a power battery, a second three-way pipe, a first electronic three-way valve, afirst water pump, an all-in-one controller, a heat exchanger, a first three-way pipe and a second electronic three-way valve which are sequentially connected end to end. According to the invention, aPTC heater is not required to be additionally arranged on the battery heating loop, and the power battery can be heated and warmed by directly utilizing the existing heat in the whole vehicle, so thatthe advantages of environmental protection and high efficiency are achieved, and the comprehensive control and management can be realized.
Owner:XIAMEN KING LONG UNITED AUTOMOTIVE IND CO LTD
Efficient heat radiation packaging structure based on graphene thermal interface layer and manufacturing method thereof
ActiveCN107946263ATake full advantage of the high in-plane thermal conductivityImprove thermal management efficiencySemiconductor/solid-state device detailsSolid-state devicesInterface layerHigh surface
The present invention discloses a heat radiation structure based on a graphene thermal interface layer. The structure comprises: multiple graphene layers, wherein each graphene layer has thickness andthe same length and width; multiple bonding layers, wherein each bonding layer has a thickness and one length and one width being the same as these of the graphene layers, the bonding layers and thegraphene layers alternatingly form a stacked structure, the stacked structure is subjected to spiral turning by taking a width direction as a shaft in a length direction starting from one end of the stacked structure to form a cylindrical spiral coil, the top surface and the bottom surface of the spiral coil are planes formed by spiral turning of two opposite thickness surfaces of the multiple graphene layers and the multiple bonding layers. The efficient heat radiation packaging structure based on the graphene thermal interface layer and the manufacturing method thereof effectively utilize graphene high-surface inner thermal conductivity and achieve efficient heat radiation packaging.
Owner:NAT CENT FOR ADVANCED PACKAGING
Temperature management device of power battery pack of electric automobile, as well as manufacture method and application method thereof
ActiveCN104409794AImprove securityImprove thermal management efficiencyCharging stationsSecondary cellsPower batteryFiber
The invention relates to a temperature management device of a power battery pack of an electric automobile, as well as a manufacture method and an application method thereof. The manufacture method comprises the following steps: cellular stainless steel sheet material is designed; the material is filled with flexible porous nano carbon fiber solvent adsorbate; solvent adopts a non-straight damp pressed flowing mode; a heating device is provided. The temperature management device can perform heating when the temperature is low and perform cooling when the temperature is high, so as to enable the temperature to be balanced. The temperature management (cooling, heating and balancing) device of the power battery pack applied to the electric automobile mainly perform management of heating at low temperature, cooling at high temperature and temperature balancing on the power battery pack, improves the safety of the power battery pack and the temperature management efficiency, reduces the temperature difference among cells in the power battery pack, ensures that the power battery pack can be normally operated when the finished automobile is in a defined operating environment, prolongs the service life of the power battery pack, improves the safety use of the power battery pack, and reduces the after-sales maintenance of the power battery pack.
Owner:奇瑞新能源汽车股份有限公司
Whole vehicle thermal management method, system and device of electric vehicle and storage medium
ActiveCN111391715AImprove thermal management efficiencyRapid coolingAir-treating devicesElectric devicesPower batteryHeat management
The embodiment of the invention provides a whole vehicle thermal management method, system and device for an electric vehicle and a storage medium. The method comprises the steps: controlling a battery auxiliary loop main contactor of a BMS to be closed if a charging instruction transmitted by the BMS is received; controlling a main contactor of a direct current converter DCDC and a main contactorof an air conditioning system to be closed to enables the DCDC and the air conditioning system to be powered on; controlling the DCDC to start to work so as to provide power for a battery cooling water pump and a motor cooling water pump; receiving a request mode sent by the BMS in the charging process; and controlling the working states of the battery cooling water pump, a power battery, the airconditioning system and the motor cooling water pump according to the request mode. According to the embodiment of the invention, rapid cooling of the power battery can be realized to ensure that thepower battery is safer in the charging process, and the thermal management efficiency of the whole vehicle can be improved.
Owner:WEICHAI POWER CO LTD
Battery thermal management system for electric automobile heat pump
PendingCN112477554AImprove heating effectSolve the icingAir-treating devicesElectric propulsion mountingElectrical batteryElectric machinery
The invention relates to a battery thermal management system for an electric automobile heat pump. The system comprises an air conditioning management system and a battery management system connectedwith the air conditioning management system; the air conditioning system comprises an air conditioning box, and an external heat exchanger, a gas-liquid separator and a compressor are arranged outsidethe air conditioning box; the battery management system comprises a battery cooler, a first branch and a second branch, the first branch and the second branch are connected with the battery cooler, the first branch comprises a first water pump, a second high-voltage PTC and a battery pack, and the second branch comprises a second water pump, an electric controller, a motor and a low-temperature water tank. A three-way valve is communicated between one side of the external heat exchanger and an internal heat exchanger, and the other side is respectively communicated with liquid inlets of ab evaporator and a battery cooler; the battery cooler can be used for absorbing waste heat emitted by the motor and the electric controller and waste heat emitted by the battery when the air conditioningsystem conducts heating, heat in air is absorbed through the low-temperature RAD, and therefore the heating performance of the air conditioning system is improved.
Owner:ANHUI JIANGHUAI SONGZ AIR CONDITIONING
Vehicle-mounted battery heat management system and method of new energy vehicle
InactiveCN110281864AImprove experienceMeet actual needsPower managementVehicular energy storageHeat managementElectrical battery
The embodiment of the invention discloses a vehicle-mounted battery heat management system and method of a new energy vehicle. The vehicle-mounted battery heat management system of the new energy vehicle comprises an environment information sensor, a vehicle-mounted remote information processor and a vehicle control unit, wherein the environment information sensor is used for detecting environment information of the new energy vehicle; the vehicle-mounted remote information processor is used for accessing a storage medium to obtain a heat insulation mode or receiving a remote message containing the heat insulation mode, determining a wake-up period on the basis of the environment information, waking up the vehicle control unit on the basis of the wake-up period and transmitting the heat insulation mode to the vehicle control unit; and the vehicle control unit is used for outputting a vehicle-mounted battery heat management instruction generated on the basis of the heat insulation mode after being waked up. According to the vehicle-mounted battery heat management system of the new energy vehicle, by considering the environment information, heat management can be preferably performed, the service life of a battery can be prolonged, heat management can also be performed in the case that the whole vehicle is stationary or static, and a working condition preferably satisfies use requirements.
Owner:长城华冠汽车科技(苏州)有限公司
Thermal management system of power battery pack and electric automobile with system
ActiveCN107839496AImprove temperature uniformityImprove temperature stabilityAir-treating devicesVehicle heating/cooling devicesPower batteryElectrical battery
The invention discloses a thermal management system of a power battery pack and an electric automobile with the system. The thermal management system comprises the power battery pack, a heat exchangecirculating pipeline, an air conditioning system of the electric automobile and a first PTC heater, wherein the power battery pack is provided with a main water inlet and a main water outlet; the twoends of the heat exchange circulating pipeline are connected with the main water inlet and the main water outlet respectively; the air conditioning system of the electric automobile comprises a refrigerating system and a warm air system, the refrigerating system comprises a compressor, a condenser and an evaporator, the evaporator comprises a first heat exchange channel and a second heat exchangechannel which are in heat exchange with each other, the first heat exchange channel is connected between the compressor and the condenser in series, and the second heat exchange channel is part of theheat exchange circulating pipeline; the warm air system comprises a warm air pipeline, and the warm air pipeline is selectively communicated with the heat exchange circulating channel; the first PTCheater is used for selectively heating heat exchange liquid in the heat exchange circulating channel. According to the thermal management system, heating and cooling of the power battery pack are uniform, the structure is simple, and the cost is low.
Owner:BYD CO LTD
Bracket for core module and solid state battery module structure
PendingCN109638188ASpeed up heat transferIncrease the areaSecondary cellsCell component detailsCooling effectEngineering
The invention discloses a bracket for a core module. In particular, the bracket comprises a frame main body, wherein a through hole is formed in the frame main body; a heat sink is arranged inside theframe main body; a core heat dissipation region exposed via the through hole is formed on the heat sink; the bottom of the frame main body is also provided with heat dissipation slots with slot widthextending to both sides of the heat sink; the heat sink is communicated into the heat dissipation slots and extends to the inner walls of the heat dissipation slots to form a radiation rib covering the whole heat dissipation slots; and the frame body is also provided with polar earholes around the through hole. The invention also discloses a solid-state battery module structure using the bracketfor the core module. The bracket has the advantages of excellent core heating and cooling effects, uniform thermal field of the battery module, convenience in assembly, and easy assembly of the solid-state battery module.
Owner:WM MOTOR TECH GRP CO LTD
Electric vehicle thermal management system, method and apparatus
ActiveCN109747369AStable jobImprove thermal management efficiencyAir-treating devicesVehicle heating/cooling devicesThermal management systemEngineering
Owner:HUAWEI TECH CO LTD
New energy vehicle thermal management system and battery electric vehicle
PendingCN110525271ASatisfy coolingSatisfy heatingAir-treating devicesVehicle heating/cooling devicesLithiumNew energy
The invention discloses a new energy vehicle thermal management system. The new energy vehicle thermal management system comprises a first cooling circuit, a second cooling circuit, a third cooling circuit, a fourth cooling circuit and a fifth cooling circuit. The new energy vehicle thermal management system has five circulation modes, and effective cooling and heating of ternary lithium batteriescan be satisfied so that the maximum property is given to full play; thermal management efficiency is improved; and the system structure is simplified. The invention further discloses a battery electric vehicle.
Owner:CHERY COMML VEHICLE ANHUI
New energy source commercial vehicle battery pack and electric vehicle
PendingCN108461684AAchieving locally targeted thermal managementImprove thermal management performanceSecondary cellsCell component detailsHeat managementElectrical battery
The embodiment of the invention relates to the technical field of battery heat radiation, in particular to a new energy source commercial vehicle battery pack and an electric vehicle. The new energy source commercial vehicle battery pack comprises a box body, a liquid cooling assembly, a sealing ring, a sealing element, a plurality of conflux elements and a plurality of battery modules, wherein the liquid cooling assembly is provided with a plurality of liquid cooling plates; the box body comprises an accommodating cavity with an opening; the liquid cooling assembly is arranged in the accommodating cavity; each battery module is fixedly attached to each liquid cooling plate; all of the conflux elements are arranged among the plurality of battery modules in a staggered way; each conflux element is electrically connected with every two battery modules so as to form a module structure with two free ends; the sealing ring is arranged at the edge of the opening; the sealing element is buckled in a position, far away from the opening edge, of the sealing ring. The new energy source commercial vehicle battery pack has the advantages that the local targeted heat management can be performedon a battery; the heat management effect is improved.
Owner:HUATING HEFEI POWER TECH
Battery monomer and battery module
PendingCN112820982AExtend your lifeSolution to short lifeSecondary cellsThermodynamicsHeat management
The invention relates to the technical field of battery modules, and discloses a battery monomer and a battery module, wherein the battery monomer comprises a battery cell and a shell, and a positive tab and a negative tab are arranged on one surface of the battery cell; one end of the shell is provided with an opening, the shell sleeves the periphery of the battery cell, and the positive tab and the negative tab are located at one end of the opening; the inner wall of the shell is provided with a cooling pipeline, the cooling pipeline is attached to the outer wall of the battery cell, one end of the cooling pipeline is a water inlet, and the other end of the cooling pipeline is a water outlet. According to the invention, the cooling channel is arranged on the shell, so that the battery monomer has a thermal management function, and the thermal management efficiency is high aiming at the single battery cell; in addition, the battery monomer is simple in structure, reliable in work and long in service life.
Owner:HUBEI JINQUAN NEW MATERIALS CO LTD
Vehicle thermal management method, device and system
PendingCN113193260AImprove thermal management efficiencyReduce heating energy consumptionSecondary cellsVehicular energy storagePhysicsElectric drive
The invention discloses a vehicle thermal management method, device and system. According to the scheme, the method comprises the steps: detecting the external environment temperature of a vehicle; when the external environment temperature is lower than a first preset value, detecting the water inlet temperature of a cooling water circulation loop of the vehicle electric drive thermal management system; controlling the circulation direction of cooling water in a cooling water circulation loop and the circulation direction of heating water in a heating water circulation loop of the vehicle battery heat management system based on the water inlet temperature; and heating a vehicle battery located on the heated water circulation loop based on the cooling water and the heated water. The cooling water waste heat of the vehicle battery heat management system can be effectively utilized to heat the vehicle battery, the battery energy consumption is reduced, and the vehicle heat management efficiency is improved.
Owner:EVERGRANDE NEW ENERGY AUTOMOTIVE INVESTMENT HLDG GRP CO LTD
Three-dimensional mesophase pitch-based carbon/carbon composite material with high heat conductivity and preparation technology thereof
The invention relates to a three-dimensional mesophase pitch-based carbon / carbon composite material with high heat conductivity and a preparation technology thereof. The preparation technology comprises the following steps: firstly, by taking a mesophase pitch-based carbon fiber cloth with high heat conductivity as a reinforced body in the XY direction and a high-modulus carbon fiber as a reinforced fiber in the Z direction, preparing three-dimensional carbon fiber fabric with high heat conductivity by adopting a carbon cloth puncturing technology; secondly, by taking mesophase pitch as a precursor of matrix carbon, performing densifying treatment on the three-dimensional carbon fiber fabric with high heat conductivity by adopting a dipping / carbonizing technology; finally, performing graphitization treatment at a high temperature of 2800 DEG C above on the obtained materials, so as to obtain the three-dimensional mesophase pitch-based carbon / carbon composite material with high heat conductivity. Through the adoption of the technology method, the heat conductivity, modulus and dimensional stability of the carbon / carbon composite material are greatly improved, and the highest heat conductivity reaching 3600 w / mK of the material in the XY direction is increased by more than 5 times as compared with the common three-dimensional carbon / carbon composite material.
Owner:AEROSPACE RES INST OF MATERIAL & PROCESSING TECH +1
A battery thermal management system, its control method, and a vehicle air conditioning system
ActiveCN108199114BStable temperatureExtended service lifeCell temperature controlVehicular energy storageHeat managementCirculator pump
The invention discloses a battery thermal management system and its control method, and a vehicle air-conditioning system, wherein the battery thermal management system includes a first heat storage device, the first heat storage device includes a phase change material filled inside it, and the first heat storage device There is also a battery pack inside the device, which also includes: a circulation pipeline, which is provided with a heat exchange medium inside, a heating device for heating the heat exchange medium in the circulation pipeline; a heat dissipation device for heat exchange in the heat dissipation circulation pipeline. The heat medium, the heat exchange container, is used to store the heat exchange medium; the circulation pump is arranged in the circulation pipeline, between the heat exchange container and the first heat storage device, and is used to circulate and output the heat exchange medium. In the present invention, while using the phase change material to store heat in combination with the first heat storage device, when the temperature of the heat exchange medium is too high or too low, heating and heat dissipation can be performed respectively through heating equipment or heat dissipation equipment, thereby ensuring the temperature of the battery pack Constant, prolong the service life of the battery pack, and improve the thermal management efficiency of the battery pack.
Owner:GLOBAL ENERGY INTERCONNECTION RES INST EURO GMBH +3
Heating and cooling system for automobile power battery
ActiveCN109301386ALow costImprove thermal management efficiencySecondary cellsPower batteryHeat management
The invention provides a heating and cooling system for an automobile power battery. The system comprises an expansion kettle, a circulating water pump, a battery cooler and a heater. The expansion kettle is connected with the circulating water pump through a first pipeline, the circulating water pump is connected with the battery cooler through a second pipeline, the battery cooler is connected with the heater through a third pipeline, the heater is connected with the expansion kettle through a fourth pipeline, the battery cooler is used for refrigerating the power battery, and the heater isused for heating the power battery. In operating of the circulating water pump, cooling fluid is driven by the circulating water pump to circulate on the battery cooler and the heater so as to improveefficiency in heat exchange between the battery cooler and the heater and the power battery. By the heating and cooling system, electric automobile cost can be reduced, and heat management efficiencyof the power battery can be improved.
Owner:ANHUI JIANGHUAI AUTOMOBILE GRP CORP LTD
Metal hydride hydrogen storage tank
PendingCN112762354AImprove thermal management efficiencyPoor resolutionContainer filling methodsFluid transferredComposite phase change materialHydride
The invention discloses a metal hydride hydrogen storage tank. The metal hydride hydrogen storage tank comprises a tank body, a flange cover, a heat exchange pipe and cooling fins, wherein a storage cavity is formed inside the tank body, a storage groove is formed in the side wall of the storage cavity, the storage groove is filled with a composite phase change material, the flange cover is hermetically connected to a port of the tank body, a hydrogen inlet / outlet is formed in the flange cover and communicates with the storage cavity, the heat exchange pipe is arranged in the storage cavity, the input end and the output end of the heat exchange pipe communicate with the outside of the flange cover, the number of the cooling fins is multiple, the multiple cooling fins are arranged at intervals along arrangement track of the heat exchange pipe, and hydrogen storage materials are placed between the adjacent cooling fins. Therefore, heat management of the first stage is achieved through arrangement of the composite phase change material, heat management of the second stage is achieved through the heat exchange pipe, namely, the heat management efficiency is improved through different heat management modes, and the problem that an existing hydrogen storage tank is poor in heat management effect is solved.
Owner:SUN YAT SEN UNIV
Self-heating battery thermal management control device, battery assembly, electric vehicle and method
PendingCN114335816AAchieve self-heatingImprove thermal management efficiencySecondary cellsPower batteryHeat management
The invention relates to a self-heating battery thermal management control device, a battery assembly, an electric vehicle and a method. Comprising a battery module, a cooling system, a self-heating system and a heat conduction structure, the cooling system is arranged at the lower end of the battery module; the self-heating system is fixed at the lower end of the cooling system and connected with positive and negative electrodes of the battery module to form a loop; a heat conduction structure is arranged between the battery module and the cooling system. IGBT switches in the positive and negative electrodes of the switch control high-frequency on-off with the self-heating high-voltage wiring harness through a battery BMS: after high-frequency on-off is formed, electric field high-frequency change exists in the self-heating high-voltage wiring harness, and a large amount of heat is generated by induction current generated in the heater due to an electromagnetic induction phenomenon through spiral lines around the heater; therefore, the heating function of the heating fixing plate can be achieved, and the heating fixing plate can heat cooling liquid in the cooling system. According to the invention, efficient cooling of the power battery and automatic heating of the battery pack can be realized, and the overall thermal management efficiency of the power battery is improved.
Owner:CHINA FIRST AUTOMOBILE
Microbead immersed liquid laser and thermal management method thereof
InactiveCN102868082BIncrease cooling areaHigh heat loadLaser cooling arrangementsThermodynamicsOptical processing
The invention belongs to the technical field of lasers and particularly relates to a microbead immersed liquid laser and a thermal management method thereof. The method is characterized in that a rare earth doped solid laser gain medium with excellent laser performance is subjected to optical processing to obtain microbeads, the microbeads are fixed in a fluorescent flow cell and completely immersed in matching fluid, and index matching fluid flows among the microbeads and four walls of the fluorescent flow cell to directly cool the gain medium and take away waste heat generated during pumping. The method has the advantages of ceaselessness, real time and high efficiency in cooling, thermal management efficiency and extreme thermal power load can be greatly improved, and accordingly higher pumping power is allowed while laser output power and efficiency are greatly improved. Moreover, the microbead immersed liquid laser and the thermal management method thereof provide novel application approaches to laser crystals which are excellent in optical performance but not in extensive use due to dimension limits, and has wide application prospect.
Owner:XI'AN INST OF OPTICS & FINE MECHANICS - CHINESE ACAD OF SCI
A solid oxide fuel cell connector and stack
ActiveCN109755608BNo power lossImprove thermal management efficiencyFuel cell heat exchangeThermodynamicsHeat management
The invention discloses a connection body of a solid oxide fuel cell, which comprises a cathode plate, an anode plate and a sealed intermediate layer arranged between the cathode plate and the anode plate, and a high-temperature heat pipe is arranged in the sealed intermediate layer; the high-temperature heat pipe Including capillary and working medium. The solid oxide fuel cell connector of the present invention is designed with an embedded heat pipe, which can reduce the temperature gradient inside the solid oxide fuel cell stack, optimize the thermal management efficiency of the stack, and improve the ability of the stack to withstand rapid temperature rise. The invention also discloses a solid oxide fuel electric stack. The electric stack in the present invention includes a connecting body of a high-temperature heat pipe, which can withstand a relatively high temperature rise rate and reduce the temperature gradient during operation, so that the electric stack system can be rapidly Start by heating up, reduce the temperature gradient and thermal stress during the heating and cooling of the stack and normal operation, and expand the application field of SOFC.
Owner:CHAOZHOU THREE CIRCLE GRP
Extended-range thermal management system and extended-range vehicle
PendingCN113696695AIncrease flow resistanceFlow balanceAir-treating devicesVehicle heating/cooling devicesHeat managementElectrical battery
The invention provides a range extending type thermal management system and a range extending type vehicle, and relates to the technical field of vehicle thermal management, the range extending type thermal management system comprises an electric drive loop, a battery loop and a four-way valve, one end of electric drive equipment is connected with one end of a first electric drive pipeline, and the other end of the electric drive equipment is connected with one end of a second electric drive pipeline; the other end of the second electric drive pipeline is connected with one end of the low-temperature radiator, and the other end of the low-temperature radiator is connected with one end of the third electric drive pipeline; one end of the battery is connected with one end of the first battery pipeline, and the other end of the battery is connected with one end of the second battery pipeline; the four-way valve is communicated with the other end of the first battery pipeline and the other end of the first electric driving pipeline, and is communicated with the other end of the second battery pipeline and the other end of the third electric driving pipeline, so that the electric driving loop and the battery loop are connected in series and coupled, and the low-temperature radiator cools the battery; and the technical problem of relatively low efficiency in the battery cooling and heating process is relieved.
Owner:ROX MOTOR TECH CO LTD
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