CN103825068A - Power battery module temperature control system for new energy coach - Google Patents
Power battery module temperature control system for new energy coach Download PDFInfo
- Publication number
- CN103825068A CN103825068A CN201410083966.6A CN201410083966A CN103825068A CN 103825068 A CN103825068 A CN 103825068A CN 201410083966 A CN201410083966 A CN 201410083966A CN 103825068 A CN103825068 A CN 103825068A
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- battery
- battery module
- temperature control
- control system
- module temperature
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2220/00—Batteries for particular applications
- H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Abstract
The invention discloses a power battery module temperature control system for a new energy coach, which comprises a battery module, wherein the battery module is connected with a battery management controller through a temperature collecting wire; a battery inlet air guide hood is fixed on one side of the battery module in a sleeving manner; a battery outlet air guide hood is fixed on the other side of the battery module in a sleeving manner; a heating panel and a vortex pipe are fixed at the inlet of the battery inlet air guide hood; a vortex pipe is sequentially connected with a blast pump and a motor through a corresponding electromagnetic valve. According to the power battery module temperature control system for the new energy coach, based on the integral heat management and control of the whole coach, the compressed gas output from the blast pump and motor cooling water heat in the moving coach are mixed as an energy source; the cold gas and hot gas are provided for the battery through the vortex pipe and the heating panel; the temperature control of battery module is realized; the requirement that the battery can work in an optimal temperature range in a cold winter and in a hot summer is satisfied.
Description
Technical field
The present invention relates to new-energy automobile design and manufacture field, relate in particular to a kind of integral new-energy passenger Vehicular dynamic battery module temperature control system.
Background technology
Along with the continuous deterioration of China's natural environment, haze weather is more and more, now badly influence our living environment, therefore the requirement of country to energy-saving and emission-reduction and policy dynamics are also in unprecedented increasing, at automotive field, the integral new-energy passenger that energy-saving and emission-reduction is had to remarkable result becomes state key popularization product, but the useful life that the key factor that restriction integral new-energy passenger automobile is promoted is Vehicular dynamic battery is too short, can the life-span that how to extend Vehicular dynamic battery use becomes accelerate the essence condition that integral new-energy passenger automobile product is promoted.
The key factor that affects Vehicular dynamic battery useful life has a lot, and except the characteristic of battery self, Vehicular dynamic battery module in use control and the consistency thereof of inner battery core temperature is also the most key factor.At present the best effort environment of Vehicular dynamic battery is 15 ℃ to 35 ℃, and power characteristic, the Long-term Effect that electrokinetic cell module internal battery core excess Temperature, too low or excessive temperature differentials all can directly affect monomer battery core are gone down and just made the life-span of whole battery modules be subject to serious decay.Therefore in the time doing the design of Vehicular dynamic battery modular structure, all need to consider fully how electrokinetic cell module is carried out to heat management control.
Current domestic main flow battery production business adopts Resistant heating, or passive insulation protection; Battery heat radiation adopts cooling, the liquid cooled of ventilating, solid cooled etc. a series of cooling measures; Because all existing leak potential safety hazard and complex structure heaviness, liquid, solid-state radiating mode be difficult to use on automobile.So the Vehicular dynamic battery on market generally all adopts the cooling and passive insulation protection of ventilating, but this temperature control mode is subject to the impact of ambient temperature very much, when outside air temperature itself just too low or too high, the temperature of battery module is just difficult to be controlled, and the inner air channel structure of restriction battery modules that is subject to complete vehicle structure all cannot well guarantee the heating and heat radiation consistency of monomer.Therefore how to solve in the situation that complete vehicle structure has structural limitations to battery modules, the height temperature control of battery modules and monomer temperature consistency problem, become the key point that extends on-vehicle battery module and improve useful life integral new-energy passenger automobile competitiveness.
Summary of the invention
The deficiency existing for solving prior art, the invention discloses a kind of integral new-energy passenger Vehicular dynamic battery module temperature control system, is realized the temperature of battery modules is accurately controlled by battery management system; Guarantee the consistency when the temperature control of the battery core in battery modules by changing the internal structure of temperature control equipment, improved on-vehicle battery available horsepower and whole service life.
For achieving the above object, concrete scheme of the present invention is as follows:
A kind of integral new-energy passenger Vehicular dynamic battery module temperature control system, comprise battery modules, battery modules is connected with battery management controller by temperature acquisition line, one side seal of described battery modules is fixed with battery air intake kuppe, the opposite side sealing of battery modules is fixed with battery air-out kuppe, and the sealing of described battery air intake kuppe air inlet place is fixed with heating panel and vortex tube; Vortex tube is connected with inflating pump and engine successively by corresponding electromagnetically operated valve, and the two ends of heating panel are connected with engine by corresponding electromagnetically operated valve.
The two ends of described heating panel are all connected with the first end of corresponding electromagnetically operated valve, and the second end of each electromagnetically operated valve is all connected with battery management controller by the CAN wire harness of communicating by letter, and the 3rd end of electromagnetically operated valve is all connected with engine by engine radiating waterway channel.
Described battery modules comprises the battery core of multiple parallel arranged, has and leave the gap with heat dissipation ventilation road as heating between battery core and battery core, on the pole of battery core, is connected with one end of temperature acquisition line, and the other end of temperature acquisition line connects battery management controller.
The electromagnetically operated valve that described vortex tube is corresponding is connected with inflating pump by gas path pipe.
The air outlet side of described battery air-out kuppe is connected with blower fan, and blower fan is connected with battery management controller by the CAN wire harness of communicating by letter.
Described heating panel is honeycomb-type heat radiation plate.
Described blower fan is many gears centrifugal fan.
Described electromagnetically operated valve is normal closed gate.
The overall structure of described battery air intake kuppe is trapezium structure, and the baffler of multiple circular arc type structures is housed in its structure inner side, and baffler is the bending of different radians, and multiple bafflers are the installation of unequal-interval.
The forward end seal of described heating panel is fixed with filter cotton.Inflating pump is connected with engine by belt.
Operation principle is as follows: engine start can drive inflating pump work to inflate to car load gas receiver later, and the water temperature of engine can rise simultaneously.When battery temperature is during higher than 30 ℃, battery management controller can collect by temperature acquisition line the information of current battery temperature, battery management controller can be by CAN order wire beam control driven by engine inflating pump work processed simultaneously, after battery management controller detects that gas circuit air pressure reaches more than 0.6Mpa, the electromagnetically operated valve that can control in gas circuit is opened, make the Compressed Gas in gas circuit enter vortex tube, vortex tube forms cold by Compressed Gas is carried out to cold and hot exchange, two strands of air-flows of heat, air-flow is respectively to vortex tube two side flow, cold air directly imports in battery air intake kuppe, hot gas is discharged vortex tube, the blower fan that meanwhile battery management controller can be controlled battery air-out kuppe air outlet side carries out active exhausting, the flow-guiding structure of cold air in can diversed cover when by battery air intake kuppe carries out water conservancy diversion and guarantees the air channel of gas uniform through each battery core and battery core, make battery core heat radiation reach consistency, when battery temperature drops to after 25 ℃, battery management controller can be controlled inflating pump, electromagnetically operated valve, the work of blower fan.
When battery temperature is during lower than 15 ℃, battery management controller can collect by temperature acquisition line the information of current battery temperature, also gather the water temperature information on engine radiating water route simultaneously, when engine water temperature is during higher than 65 ℃, the electromagnetically operated valve of battery management controller on can control engine heat radiation water route opened.In the time that the cooling water in engine flows through heating panel, can make heating panel temperature rise, carry out active exhausting in this blower fan of battery management controller startup simultaneously, ambient atmos can be cleaned by filter cotton successively, be heated by heating panel, enter in battery air intake kuppe, the flow-guiding structure of hot gas in can diversed cover when by battery air intake kuppe carries out water conservancy diversion, guarantee the air channel through each battery core and battery core of gas uniform, make battery core heating reach consistency, when battery temperature rises to after 20 ℃, battery management controller can be controlled the closed electromagnetic valve on blower fan and engine radiating water route.
Beneficial effect of the present invention:
1, battery modules in the past cannot be dispelled the heat and safe and reliable heating fast to battery core, the present invention is by integrating the control of car load heat management, utilizing Compressed Gas and the engine cooling water heat of inflating pump output on the moving passenger vehicle of mixing is energy source, provide cold and hot gas by vortex tube and heating panel for battery, solve the temperature control to battery modules, guaranteed that battery can both be operated in best temperature range in the environment of severe cold and heat.
2, when heating of battery and refrigeration, by controlling the flow of electromagnetically operated valve opening angle control water route and gas circuit, control the rotating speed of blower fan simultaneously, can realize the accurate control to battery modules temperature.
3, do not adopt other independent energy to carry out heating and cooling, but the unnecessary Compressed Gas producing when the waste heat itself producing while mixing engine operation on moving passenger vehicle by utilization and the work of driven by engine inflating pump is energy source, save energy, improved the utilance of the energy.
4, by simulation analysis, design battery air intake kuppe and battery air-out kuppe, guaranteed the consistency of battery in the time of heating and heat radiation, the useful life of having improved battery.
5, the structure of battery modules has realized simple compact designed, is suitable for the application of vehicle mass.
Accompanying drawing explanation
Fig. 1 overall structure schematic diagram of the present invention;
Fig. 2 battery air intake of the present invention kuppe structural representation;
In figure, 1, engine; 2, engine radiating waterway pipe; 3, inflating pump; 4, gas path pipe; 5, battery air intake kuppe; 6, electromagnetically operated valve; 7, vortex tube; 8, heating panel; 9, filter cotton; 10, battery modules; 11, battery air-out kuppe; 12, temperature acquisition line; 13, battery management controller; 14, CAN communication wire harness; 15, blower fan; 16, baffler.
Embodiment:
Below in conjunction with accompanying drawing, the present invention is described in detail:
As shown in Figure 1-2, integral new-energy passenger Vehicular dynamic battery module temperature control system and device, comprise following 4 parts: battery modules 10, battery management system, heating of battery cooling device, energy provide system;
Battery management system comprises temperature acquisition line 12, CAN communication wire harness 14, battery management controller 13, electromagnetically operated valve 6; Heating of battery cooling device comprises porous heating panel 8, vortex tube 7, battery air intake kuppe 5, battery air-out kuppe 11, blower fan 15; Energy provides system to comprise engine radiating waterway pipe 2 and gas path pipe 4.
In described battery modules 10, battery core is carried out parallel arranged and is fixed, between battery core and battery core, there is certain gap as heating and the air duct dispelling the heat, one end of battery temperature collection line 12 is fixed on battery core pole, and the other end that battery temperature gathers line 12 connects battery management controller 13, battery air intake kuppe 5 is sealingly fastened in a side of the battery core of parallel arranged, and battery air-out kuppe 11 is sealingly fastened in the opposite side of the battery core of parallel arranged, heating panel 8 is sealingly fastened in battery air intake kuppe 5 air inlet places with vortex tube 7, heating panel 8 and vortex tube 7 have respectively interface, interface connects respectively an electromagnetically operated valve 6, the other end of electromagnetically operated valve 6 gas path pipe 4 that connecting engine heat radiation waterway pipe 2 and inflating pump 3 are drawn respectively, electromagnetically operated valve 6 is controlled by battery management controller 13 by the CAN wire harness 14 of communicating by letter, inflating pump 3 is connected with engine 1 by belt, above-mentioned blower fan 15 is sealingly fastened in battery air-out kuppe 11, controlled by battery management controller 13, described battery filter cotton 9 is sealingly fastened in heating panel 8 front ends.
Said apparatus operation principle is as follows;
After engine 1 starts, can drive inflating pump 3 to work and inflate to car load gas receiver, the water temperature of engine 1 can rise simultaneously.When battery temperature is during higher than 30 ℃, battery management controller 13 can collect by temperature acquisition line 12 information of current battery temperature, simultaneously battery management controller 13 can drive inflating pump 3 to work by CAN wire harness 14 control engines 1 of communicating by letter, after battery management controller 13 detects that gas circuit air pressure reaches more than 0.6Mpa, the electromagnetically operated valve 6 that can control in gas circuit is opened, make the Compressed Gas in gas circuit enter vortex tube 7, vortex tube 7 forms cold by Compressed Gas is carried out to cold and hot exchange, two strands of air-flows of heat, air-flow is respectively to 7 liang of side flow of vortex tube, cold air directly imports in battery air intake kuppe 5, hot gas is discharged vortex tube 7.The blower fan 15 that battery air-out kuppe 11 air outlet sides are controlled in meanwhile battery management controller 13 meetings carries out active exhausting, the baffler 16 of cold air in can diversed cover when by battery air intake kuppe 5 carries out water conservancy diversion and guarantees the air channel of gas uniform through each battery core and battery core, make battery core heat radiation reach consistency, when battery temperature drops to after 25 ℃, battery management controller 13 can be controlled the work of inflating pump 3, electromagnetically operated valve 6, blower fan 15.
When battery temperature is during lower than 15 ℃, battery management controller 13 can collect by temperature acquisition line 12 information of current battery temperature, also gather the water temperature information on engine radiating water route 2 simultaneously, when engine 1 temperature is during higher than 65 ℃, the electromagnetically operated valve 6 of battery management controller 13 on can control engines heat radiation water routes 2 opened.In the time that the cooling water in engine flows through heating panel 8, can make heating panel 8 temperature rises, start blower fan 15 in this while battery management controller 13 and carry out active exhausting, ambient atmos can be cleaned by filter cotton 9 successively, heated by heating panel 8, enter in battery air intake kuppe 5, the baffler 16 of hot gas in can diversed cover when by battery air intake kuppe 5 carries out water conservancy diversion, guarantee the air channel through each battery core and battery core of gas uniform, make battery core heating reach consistency, when battery temperature rises to after 20 ℃, the electromagnetically operated valve 6 that battery management controller 13 can be controlled on blower fan 15 and engine radiating water route 2 cuts out.
It is the energy that said apparatus cooling occupation mode is characterized in that having adopted car load gas circuit, take vortex tube 7 as refrigeration structure, when car load gas circuit air pressure generally can be stabilized in 0.8Mpa, under this air pressure, vortex tube 7 can produce the cold air of subzero 30 ℃, supplies with battery cooling.
It is energy source that said apparatus heating occupation mode is characterized in that having adopted engine cooling water, with heating panel 8 for heating structure, engine cooling water temperature generally can be stabilized in 85 ℃, and ambient atmos is spent by the highest being warming up to 60 of heating panel more, supplies with battery and heats up.
Said apparatus temperature control mode is that the heating panel 8 adopting is honeycomb-type heat radiation plate, and to increase rate of heat dispation, its material is not limited to the material that any heat conductivity is good.
Said apparatus temperature control mode is blower fan gear more than 15 centrifugal fan adopting, and heats or dispels the heat in the mode of taking out hot blast or cold wind as battery modules 10.
The control of said apparatus temperature is that the electromagnetically operated valve 6 adopting is normal closed gate, and valve opening size is controlled.
Said apparatus battery air intake kuppe 5 is that overall structure is trapezium structure, the structure baffler 16 of multiple circular arc types is housed in its structure inner side, baffler 16 is the bending of different radians, multiple bafflers 16 are the installation of unequal-interval, the guiding that is subject to baffler 16 when air-flow during by battery air intake kuppe 5 has changed its mobile direction, thus the gap of having guaranteed gas uniform through each battery core and battery core.
Its feature instantiation of said system temperature control in the wire harness 14 of communicating by letter with CAN by temperature acquisition line 12 by battery management controller 13 to collect the temperature and pressure of battery core, water route, gas circuit, by controlling the exhausting amount of blower fan 15, the aperture of electromagnetically operated valve 6 realizes the temperature control of battery modules 10, when battery temperature is higher than 30 ℃ and higher than 35 ℃; Or battery temperature is lower than 15 ℃ and during higher than 10 ℃, battery management controller 13 is controlled blower fan 15 low speed rotation, and electromagnetically operated valve 6 low-angles are opened; When battery temperature is higher than 35 ℃; Or battery temperature is during lower than 15 ℃, battery management controller 13 is controlled blower fan High Rotation Speed, and electromagnetically operated valve 6 wide-angles are opened; Battery management controller 13 is by controlling the aperture of blower fan 15 rotating speeds and electromagnetically operated valve 6, come the ventilation quantity of regulating cell module 10 and the water yield that enters the tolerance of vortex tube 7 or enter heating panel 8, the speed of adjustments of gas and temperature, thus be reached for the object that battery modules 10 heats up accurately and fast and lowers the temperature.
Claims (10)
1. an integral new-energy passenger Vehicular dynamic battery module temperature control system, it is characterized in that, comprise battery modules, battery modules is connected with battery management controller by temperature acquisition line, one side seal of described battery modules is fixed with battery air intake kuppe, the opposite side sealing of battery modules is fixed with battery air-out kuppe, and the sealing of described battery air intake kuppe air inlet place is fixed with heating panel and vortex tube; The two ends of heating panel are connected with engine by corresponding electromagnetically operated valve, and vortex tube is connected with inflating pump and engine successively by corresponding electromagnetically operated valve.
2. a kind of integral new-energy passenger Vehicular dynamic battery module temperature control system as claimed in claim 1, it is characterized in that, the two ends of described heating panel are all connected with the first end of corresponding electromagnetically operated valve, the second end of electromagnetically operated valve is all connected with battery management controller by the CAN wire harness of communicating by letter, and the 3rd end of electromagnetically operated valve is all connected with engine by engine radiating waterway channel.
3. a kind of integral new-energy passenger Vehicular dynamic battery module temperature control system as claimed in claim 1, it is characterized in that, described battery modules comprises the battery core of multiple parallel arranged, between battery core and battery core, have and leave the gap with heat dissipation ventilation road as heating, on the pole of battery core, be connected with one end of temperature acquisition line, the other end of temperature acquisition line connects battery management controller.
4. a kind of integral new-energy passenger Vehicular dynamic battery module temperature control system as claimed in claim 1, is characterized in that, the electromagnetically operated valve that described vortex tube is corresponding is connected with inflating pump by gas path pipe.
5. a kind of integral new-energy passenger Vehicular dynamic battery module temperature control system as claimed in claim 1, is characterized in that, the air outlet side of described battery air-out kuppe is connected with blower fan, and blower fan is connected with battery management controller by the CAN wire harness of communicating by letter.
6. a kind of integral new-energy passenger Vehicular dynamic battery module temperature control system as claimed in claim 1, is characterized in that, described heating panel is honeycomb-type heat radiation plate.
7. a kind of integral new-energy passenger Vehicular dynamic battery module temperature control system as claimed in claim 5, is characterized in that, described blower fan is many gears centrifugal fan.
8. a kind of integral new-energy passenger Vehicular dynamic battery module temperature control system as claimed in claim 1 or 2, is characterized in that, described electromagnetically operated valve is normal closed gate.
9. a kind of integral new-energy passenger Vehicular dynamic battery module temperature control system as claimed in claim 1, it is characterized in that, the overall structure of described battery air intake kuppe is trapezium structure, the baffler of multiple circular arc type structures is housed in its structure inner side, baffler is the bending of different radians, and multiple bafflers are the installation of unequal-interval.
10. a kind of integral new-energy passenger Vehicular dynamic battery module temperature control system as claimed in claim 1, is characterized in that, the forward end seal of described heating panel is fixed with filter cotton, and inflating pump is connected with engine by belt.
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| CN201410083966.6A CN103825068B (en) | 2014-03-07 | 2014-03-07 | A kind of integral new-energy passenger Vehicular dynamic battery module temperature control system |
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| CN201410083966.6A CN103825068B (en) | 2014-03-07 | 2014-03-07 | A kind of integral new-energy passenger Vehicular dynamic battery module temperature control system |
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| CN103825068B CN103825068B (en) | 2016-08-17 |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105870540A (en) * | 2016-06-07 | 2016-08-17 | 普天新能源车辆技术有限公司 | Battery pack cooling system |
| CN106602173A (en) * | 2016-12-26 | 2017-04-26 | 安徽安耐捷新能源科技有限公司 | Heat dissipation and cooling system of battery pack |
| CN107221730A (en) * | 2017-07-20 | 2017-09-29 | 陈名炎 | A kind of batteries of electric automobile module |
| CN107234975A (en) * | 2017-06-23 | 2017-10-10 | 广东机电职业技术学院 | Electrokinetic cell vortex tube heat management system |
| CN107710495A (en) * | 2015-07-24 | 2018-02-16 | 松下知识产权经营株式会社 | Thermostat unit, humidity control system, vehicle |
| CN108767366A (en) * | 2018-06-01 | 2018-11-06 | 辽宁比科新能源股份有限公司 | A kind of air-cooled heat dissipation structure of power battery pack |
| CN111016581A (en) * | 2019-12-23 | 2020-04-17 | 宁波吉利汽车研究开发有限公司 | Vehicle thermal management control system and method and vehicle |
| CN111505960A (en) * | 2019-01-31 | 2020-08-07 | 北京新能源汽车股份有限公司 | Power battery thermal management simulation system and method |
| CN112368876A (en) * | 2018-06-29 | 2021-02-12 | 韦巴斯托股份公司 | Temperature control element for controlling the temperature of an electrical energy store |
| CN112366389A (en) * | 2020-11-10 | 2021-02-12 | 西安电子科技大学芜湖研究院 | Automatic heat preservation and radiating liquid cooling battery |
| CN112786994A (en) * | 2021-01-13 | 2021-05-11 | 玉环齐源科技有限公司 | High-efficient type new energy automobile lithium cell of adaptable ambient temperature change |
| CN113994093A (en) * | 2019-07-04 | 2022-01-28 | 尼得科Gpm有限公司 | Integrated screw coolant pump |
| CN114776435A (en) * | 2022-04-14 | 2022-07-22 | 徐工集团工程机械股份有限公司道路机械分公司 | Road roller cooling system suitable for high-temperature environment |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107710495A (en) * | 2015-07-24 | 2018-02-16 | 松下知识产权经营株式会社 | Thermostat unit, humidity control system, vehicle |
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| CN112368876A (en) * | 2018-06-29 | 2021-02-12 | 韦巴斯托股份公司 | Temperature control element for controlling the temperature of an electrical energy store |
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| CN111505960B (en) * | 2019-01-31 | 2023-08-08 | 北京新能源汽车股份有限公司 | Power battery thermal management simulation system and method |
| CN113994093A (en) * | 2019-07-04 | 2022-01-28 | 尼得科Gpm有限公司 | Integrated screw coolant pump |
| CN111016581A (en) * | 2019-12-23 | 2020-04-17 | 宁波吉利汽车研究开发有限公司 | Vehicle thermal management control system and method and vehicle |
| CN112366389B (en) * | 2020-11-10 | 2021-10-08 | 西安电子科技大学芜湖研究院 | Automatic heat preservation and radiating liquid cooling battery |
| CN112366389A (en) * | 2020-11-10 | 2021-02-12 | 西安电子科技大学芜湖研究院 | Automatic heat preservation and radiating liquid cooling battery |
| CN112786994A (en) * | 2021-01-13 | 2021-05-11 | 玉环齐源科技有限公司 | High-efficient type new energy automobile lithium cell of adaptable ambient temperature change |
| CN114776435A (en) * | 2022-04-14 | 2022-07-22 | 徐工集团工程机械股份有限公司道路机械分公司 | Road roller cooling system suitable for high-temperature environment |
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Address after: 252000 No.261 Huanghe Road, economic development zone, Liaocheng City, Shandong Province Patentee after: Zhongtong bus Limited by Share Ltd. Address before: 252000 No. 10, Dongchangfu, Liaocheng District, Shandong, Jianshe Road Patentee before: ZHONGTONG BUS HOLDING Co.,Ltd. |
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