CN202839901U - Thermal management system of power battery - Google Patents

Thermal management system of power battery Download PDF

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Publication number
CN202839901U
CN202839901U CN 201220511191 CN201220511191U CN202839901U CN 202839901 U CN202839901 U CN 202839901U CN 201220511191 CN201220511191 CN 201220511191 CN 201220511191 U CN201220511191 U CN 201220511191U CN 202839901 U CN202839901 U CN 202839901U
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China
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battery
liquid
heat pipe
management system
thermal management
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CN 201220511191
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Chinese (zh)
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付垚
唐海波
卢世刚
胡博
薛轶
邹春龙
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Beijing General Research Institute for Non Ferrous Metals
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Beijing General Research Institute for Non Ferrous Metals
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Abstract

The utility model relates to a thermal management system of a power battery, and belongs to a component of a battery management system. The thermal management system of the power battery mainly consists of a battery box, a heat pipe, a liquid flow pipe, a liquid box, a semiconductor heating/refrigerating element, a liquid circulating pump, a battery control unit, a temperature sensor, a radiator and a fan. The radiator and the fan are installed outside the battery box, the battery box, the heat pipe, the liquid flow pipe, the liquid box, the semiconductor heating/refrigerating element, the liquid circulating pump, the battery control unit and the temperature sensor are installed in the battery box and organically combined with a battery module. The heat pipe is inserted into the battery module. The heat pipe is compactly attached to the battery module and the liquid flow plate above the battery module. The liquid flow plate is internally provided with a liquid circulating pipeline connected with the liquid circulating pump which is further connected with the liquid box filled with a circulating liquid. The semiconductor heating/refrigerating element is contacted with the liquid box and attached to the radiator. The battery box is further provided with the temperature sensor connected with battery control unit which controls the liquid circulating pump, the semiconductor heating/refrigerating element and the fan to work. The thermal management system of the power battery provided by the utility model is reasonable in structure and can quickly heat and cool.

Description

Power battery thermal management system
Technical field
The utility model relates to a kind of heat management system of electrokinetic cell, belongs to the part of power battery management system.
Background technology
At present; world energy sources crisis and problem of environmental pollution are on the rise; the disposable energy constantly reduces, crude oil price rises steadily; various countries all step up to develop the new forms of energy vehicles, and pure electric automobile and hybrid vehicle become energy savings, reduce the vehicles given priority in future of pollutant emission.And electrokinetic cell is the energy carrier that pure electric automobile and hybrid vehicle drive.In order to satisfy the requirement of quick charge and continual mileage, and the vehicle performance under the operating modes such as climbing, acceleration, electrokinetic cell must possess high-power output and large capacity.For the high power capacity that guarantees electrokinetic cell, high-power, normally a large amount of single power batteries are formed battery module by mode in parallel, series connection and use.Power battery module each monomer in quick charge, discharge process all can produce a large amount of heats, produce constantly accumulation of heat, stack, so that temperature of powered cell sharply raises, and because the residing position of each cell is different, radiating condition has very big-difference, causes the serious temperature non between cell.And most of electrokinetic cells have very harsh requirement to the operating temperature condition, under hot conditions, very likely cause the thermal runaway of electrokinetic cell, occur smoldering, the security incident such as on fire and blast, and vehicle and passenger are damaged.And serious, long-term non-uniform temperature can greatly reduce the useful life of power battery pack.Some electrokinetic cells discharging efficiency under cryogenic conditions is very low, even is difficult under the low temperature start operation, has had a strong impact on the normal use of vehicle.
Battery thermal management system can be controlled and regulate the temperature of battery module, can greatly remedy the defective of electrokinetic cell self, enlarges the Applicable temperature scope of battery, improves useful life and the fail safe of battery.The following several modes of the many employings of the design of existing battery thermal management system: provided with fan in battery case, to strengthen the cross-ventilated mode of battery case battery pack is lowered the temperature; Or battery case is connected with Air conditioning duct for automobile, when vehicle operating, by air conditioning for automobiles battery pack is heated or cool off; Also have and between battery module, arrange fluid pipeline, battery pack is heated or cool off by flowing liquid; Utilize in addition the extremely strong capacity of heat transmission of heat pipe, between battery module, assign heat pipe that the battery heat is directly exported to outside the battery case.
Although above battery thermal management system can play radiating effect, but design exists following drawback: the fan cooling mode is when the battery temperature rapid fluctuations, be difficult at short notice with the adjustment balance, and because windage is different everywhere in the battery case, cause different battery module heat radiations uneven, very big-difference appears in temperature, also easily makes dust enter battery case; Adopt air conditioning for automobiles that the mode of battery cooling, heating is had larger dependence to air conditioning for automobiles, battery thermal management system can not self independent operating, when vehicle air conditioning breaks down, may cause battery thermal management system out of control; Adopt liquid-circulating to the mode of heating of battery or cooling, when the circulating line between battery module easily breaks, cause the danger of battery short circuit when battery is collided or push; Although and between battery module, assign the radiating mode of heat pipe simple in structure, still be subject to the impact of ambient temperature, if ambient temperature is very high, heat pipe can't be reduced to battery temperature below the ambient temperature, battery self still exists high heat dangerous.Therefore, existing battery thermal management system can't realize battery under cryogenic conditions Fast Heating, under hot conditions active cooling, independent operating and keep the regulatory function of battery temperature uniformity.
The utility model content
For overcoming the deficiencies in the prior art, the utility model is designed a kind of power battery thermal management system, can realize Fast Heating or cooling to battery module, heat management system can independent operating, to guarantee the temperature uniformity consistency of battery, and rational in infrastructure, reliability is high, extending battery life.
For achieving the above object, the designed power battery thermal management system of the utility model mainly is comprised of battery case, heat pipe, liquid stream plate, fluid box, semiconductor heating/refrigerating element, liquid circulation pump, battery control unit, temperature sensor, radiator, fan, radiator and fan are installed on the battery case outside, radiator mainly is comprised of thermal conductive surface and fin two parts, radiator is fixedly installed in the outer surface of battery case, and fan is installed mutually for the side of radiator with fin; Heat pipe, liquid stream plate, fluid box, semiconductor heating/refrigerating element, liquid circulation pump, battery control unit and temperature sensor are fixed in the battery case, the battery module that is installed on battery case organically combines with being arranged in parallel, one or more heat pipe is inserted in slit between whenever adjacent battery module, heat pipe is the inverted "L" shaped shape, formed by vertical tube and transverse tube, the cross section of heat pipe is rectangle, the vertical tube side surface of heat pipe and the surface of adjacent battery modules fit tightly, be fixed with liquid stream plate above in battery case, being positioned at battery module, the transverse tube of heat pipe is overlapped on the liquid stream plate, fit tightly with liquid stream plate, liquid stream plate is inner metallic plate with the liquid-circulating pipeline, the liquid-circulating pipeline is with inlet and liquid outlet, the inlet of liquid-circulating pipeline and liquid outlet are connected with liquid-circulating delivery side of pump and import by pipeline, liquid circulation pump is connected with fluid box by catheter again, fluid box is the inner closed metal box that is filled with circulating fluid, fluid box is installed in the madial wall position near battery case, outer surface at the close battery case of fluid box is equipped with semiconductor heating/refrigerating element, one side and the fluid box of semiconductor heating/refrigerating element fit tightly, position corresponding with semiconductor heating/refrigerating element on the battery case arranges opening, and semiconductor heating/refrigerating element fits tightly by the thermal conductive surface that opening passes the radiator in battery case and the battery case outside; Gap between the adjacent battery modules in battery case also is equipped with for the temperature sensor that gathers temperature between battery module, being fixedly installed in battery control unit in the battery case receives the temperature data of temperature sensor collection by connection line and processes, battery control unit is by wire and liquid circulation pump, semiconductor heating/refrigerating element and fan connect, and battery control unit is according to temperature data result opening by wire signal control liquid circulation pump, close, opening of control semiconductor heating/refrigerating element, opening of pass and heating or cooling condition and control fan, close.
Above-mentioned heat pipe is that inside possesses reversible heat pipe capillaceous.
Above-mentioned radiator is the aluminum alloy finned radiator, at the finned fin outside of radiator provided with fan.
For reaching better thermal management effect, scribble heat insulating coat at the surfaces externally and internally of battery case, effectively the isolated environment temperature is on the impact of battery temperature.
In battery case, between battery module and the described battery case pad that the elasticity heat-barrier material is made can also be installed, as: rubber blanket, with the heat transmission of isolated battery module and battery case.
When heat pipe is installed, can smear heat conductive silica gel on the heat pipe surface, so that heat pipe and battery module surface fit tightly; Can insert 1~4 heat pipe between the adjacent battery modules, concrete quantity is determined according to the caloric value of battery module and the heat-transfer capability of use heat pipe.
Described fluid box is preferably aluminium alloy liquid case.
Described liquid stream plate is aluminum alloy melt stream plate, on it with the hole that can penetrate heat pipe.
When selecting semiconductor heating/refrigerating element is installed, select the use number of semiconductor heating/refrigerating element according to the living thermal power of battery, the living thermal power of battery can be connected in parallel by two or more semiconductor heating/refrigerating elements when larger, to increase whole heating/cooling effect.
The utility model is when using, and after battery module startup work, the temperature sensor in the power battery thermal management system between battery module begins to gather battery temperature, and the temperature signal that collects is sent to battery control unit by connection line.Battery control unit is analyzed temperature signal, judges the state of temperature of battery module operation.If the battery module operating temperature is in the battery module optimum working temperature scope of setting, battery control unit is to the temperature sensor inverse signal, and temperature sensor continues collection signal; If the battery module operating temperature is higher than the battery module optimum working temperature scope of setting, battery control unit is to liquid circulation pump, fan sends enabling signal, send the refrigerating function enabling signal to semiconductor heating/refrigerating element, the side that semiconductor heating/refrigerating element is close to fluid box begins refrigeration, circulation fluid in the fluid box is cooled off, liquid circulation pump pumps into the circulation fluid of cooling in the liquid-circulating pipeline in the liquid stream plate and circulates, cooling fluid stream plate, and then carry out the Rapid Thermal exchange by the heat pipe with the applying of liquid stream plate the battery module in the battery case is lowered the temperature, semiconductor heating/refrigerating element is when being close to fluid box one side refrigeration, opposite side can produce amount of heat, the heat that produces is delivered on the radiator thermal conductive surface that fits tightly with semiconductor heating/refrigerating element opposite side, thermal conductive surface is delivered to heat again fin one side, fan effect by the fin outside, the mandatory rapid flow of blow air conducts rapidly heat in the air that is dispersed into outside the battery case; If but the battery operation temperature is lower than the battery optimum temperature range of setting, then battery control unit sends enabling signal to liquid circulation pump, send the heating function enabling signal to semiconductor heating/refrigerating element, the side that semiconductor heating/refrigerating element is close to fluid box begins to heat up, circulation fluid in the fluid box is heated, liquid circulation pump pumps into the circulation fluid of heating in the liquid-circulating pipeline in the liquid stream plate and circulates, heating fluid stream plate, and then carry out the Rapid Thermal exchange by the heat pipe with the applying of liquid stream plate the battery module in the battery case is heated.In service at liquid circulation pump, fan and semiconductor heating/refrigerating element, temperature sensor continuous collecting battery temperature signal, battery control unit is to the temperature signal analysis, judge whether the battery operation temperature enters in the battery module optimum working temperature scope of setting, until reach the battery module optimum temperature range, battery control unit then sends signal out of service to liquid circulation pump, semiconductor heating/refrigerating element or fan.
The beneficial effects of the utility model are:
1. adopt semiconductor heating/refrigerating element in the power battery thermal management system, can can change by the signal that battery control unit sends the sense of current realization of semiconductor heating/refrigerating element to heating or the cooling of circulation fluid in the fluid box, by circulation fluid circulate and then realize heating or cooling to battery module, therefore can guarantee effectively to control the temperature range of power battery module; In addition, the work temperature difference of semiconductor heating/refrigerating element maximum can reach more than 60 ℃, when therefore even battery is worked under 60 ℃ of ambient temperatures, also battery temperature can be reduced to 30 ℃~0 ℃ with interior optimum working temperature, this is that simple air blast cooling heat radiation or liquid flow heat dissipation can not reach.And the efficient of semiconductor heating/refrigerating element when heating almost can reach 100%, a plurality of semiconductor heating/refrigerating elements are in parallel to be used, can be fast with battery module from low-temperature heat to the optimum working temperature scope, even in the cold normal use that does not also affect battery module winter in the north, greatly increased the ambient temperature range of battery normal operation.Semiconductor heating/refrigerating element has advantages of that volume is little, lightweight, heating and refrigerating speed are fast, has greatly alleviated the overall burden of battery case.
2. the heat pipe in the power battery thermal management system adopts reversible heat pipe, has extremely strong heat-transfer capability, and can the bi-directional heat.With the slit between the reversible heat pipe insertion battery module, the heat that rapidly battery is produced than Gao Shike in the battery module temperature is delivered to liquid stream plate and dispels the heat, and the heat that can rapidly liquid be flowed plate when battery temperature is low is delivered to battery module battery is heated.
3. adopt liquid stream plate and the radiator of aluminum alloy material in the power battery thermal management system, have lightweight, the advantage that the capacity of heat transmission is strong, especially when heating or cool cycles liquid during by liquid stream plate, can carry out heat exchange with liquid stream plate rapidly, and the heat of circulating fluid transmission can be evenly distributed on the whole liquid stream plate, then carry out heat exchange by heat pipe and battery, temperature difference that can balanced diverse location battery module of living in, greatly increase the temperature homogeneity between the battery module, be conducive to guarantee the temperature environment consistency of battery, strengthen the fail safe of battery, extending battery life.
4. except radiator and fan, other assemblies all are installed in the battery case, have reduced the requirement to car body design, therefore install simple, convenient.
5. the battery case surfaces externally and internally in the power battery thermal management system is processed through heat insulating coat, be lined with heat insulating mattress between battery case and the battery module, reduced the impact that battery temperature is subjected to extraneous factor, the heat exchange of battery module is mainly undertaken by heat management system, therefore can accurately control the temperature of battery module by control semiconductor heating/cooling power.
6. because the power battery thermal management system overall operation is not subjected to the impact of extraneous factor, therefore independence and the reliability of work are higher than present existing battery thermal management system far away.
The designed power battery thermal management system of the utility model can be widely used in the used battery management system of hybrid vehicle and pure electric automobile.
Description of drawings
Fig. 1 is the designed power battery thermal management system structural representation of the utility model.
Fig. 2 is the structural representation of liquid stream plate among Fig. 1.
Fig. 3 is the control principle drawing of battery control unit among Fig. 1.
Fig. 4 is the designed power battery thermal management system workflow schematic diagram of the utility model.
Number in the figure: 1. battery case, 2. battery module, 3. heat pipe, 4. liquid stream plate, 5. fluid box, 6. circulation fluid, 7. semiconductor heating/refrigerating element, 8. liquid-circulating pipeline, 9. liquid circulation pump, 10. radiator, 11. fan, 12. battery control units, 13. temperature sensors, 14. rubber blankets.
Embodiment
The designed power battery thermal management system of the utility model is described further by specific embodiment below in conjunction with accompanying drawing.
Embodiment 1
Power battery thermal management system as shown in Figure 1, mainly formed by battery case 1, heat pipe 3, liquid stream plate 4, fluid box 5, semiconductor heating/refrigerating element 7, liquid circulation pump 9, battery control unit 12, temperature sensor 13, radiator 10, fan 11, radiator 10 and fan 11 are installed on the outside of battery case 1, radiator 10 is the aluminum alloy finned radiator, mainly formed by thermal conductive surface and fin two parts, radiator 10 is installed on the battery case outside, and fan 11 is installed in the optimum position that can aim at the outer cross air blasting of fin; Heat pipe 3, liquid stream plate 4, fluid box 5, semiconductor heating/refrigerating element 7, liquid circulation pump 9, battery control unit 12 and temperature sensor 13 are fixed in the battery case 1, the battery module 2 that is arranged in parallel also is installed in the battery case 1, two heat pipes 3 are inserted in slit between whenever adjacent battery module 2, heat pipe 3 is reversible heat pipe capillaceous for inside possesses, be the inverted "L" shaped shape, formed by vertical tube and transverse tube, the cross section of heat pipe 3 is rectangle, and the vertical tube side surface of heat pipe 3 and the surface of adjacent battery modules 2 fit tightly.For heat pipe 3 and battery module 2 surfaces are fitted tightly, smear heat conductive silica gel on heat pipe 3 surfaces during installation.Be fixed with liquid stream plate 4 above battery module 2, liquid stream plate 4 for the Al-alloy metal plate of inside with liquid-circulating pipeline 8, has the hole that can allow heat pipe 3 to penetrate as shown in Figure 2 on it, and the transverse tube of heat pipe 3 is overlapped on the liquid stream plate 4, fits tightly with liquid stream plate 4.Inlet and the liquid outlet of liquid-circulating pipeline 8 are connected with outlet and the import of liquid circulation pump 9 by pipeline in the liquid stream plate 4, liquid circulation pump 9 is connected with fluid box 5 by catheter again, fluid box 5 is the inner sealed aluminum alloying metal casing that is filled with circulation fluid 6, fluid box 5 is installed near the madial wall of battery case 1, outer surface at fluid box 1 close battery case 5 is equipped with semiconductor heating/refrigerating element 7, one side and the fluid box 5 of semiconductor heating/refrigerating element 7 fit tightly, battery case 1 and semiconductor heating/refrigerating element 7 corresponding positions arrange opening, and semiconductor heating/refrigerating element 7 fits tightly by the thermal conductive surface that opening passes battery case 1 and radiator 10; Also be equipped with for the temperature sensor 13 that gathers temperature between battery module in the gap between the battery case 1 interior adjacent battery modules 2, being installed on battery control unit 12 in the battery case 1 receives the temperature data that temperature sensor 13 gathers by connection line and processes, battery control unit 12 is by wire and liquid circulation pump 9, semiconductor heating/refrigerating element 7 and fan 11 connect, battery control unit 12 is according to temperature data result opening by wire signal control liquid circulation pump 9, close, opening of control semiconductor heating/refrigerating element 7, pass and heating or cooling condition, and control opening of fan 11, close.Battery control unit 12, temperature sensor 13 and semiconductor heating/refrigerating element 7 are the outsourcing product.
Be effectively the isolated environment temperature to the impact of battery module 2 temperature, scribble heat insulating coat at the surfaces externally and internally of battery case 1, and between battery module 2 and battery case 1, also be lined with heat insulation rubber blanket 14, with the heat transmission of isolated battery module 2 and battery case 1.
The control principle of 12 pairs of semiconductor heating/refrigeratings of battery control unit element 7, liquid circulation pump 9 and fan 11 as shown in Figure 3, battery control unit 12 can be controlled by the switching that output signal changes circuit the opening and closing of semiconductor heating/refrigerating element 7, liquid circulation pump 9, fan 11; Battery control unit 12 by in the output signal control semiconductor heating/refrigerating element 7 with the heating/refrigerating transducer change the sense of current that enters semiconductor heating/refrigerating element 7, thereby realize respectively the function that heats or freeze so that semiconductor heating/refrigerating element 7 is close to a side of fluid box 5.
Power battery thermal management system is when work, its workflow as shown in Figure 4, after start battery work, the temperature sensor 13 that is installed on place, slit between the battery module 2 gathers the temperature of battery module 2 automatically, and the temperature signal of collection is sent to battery control unit 12.12 pairs of temperature signals of battery control unit are analyzed, and judge that the operating temperature of battery module 2 is whether in 0~25 ℃ optimum operation temperature range.If judged result is "Yes", battery control unit 12 inverse signals then, temperature sensor 13 will gather the battery temperature signal again: if judged result is "No", battery control unit 12 will be analyzed signal again (1), judge whether the battery operation temperature is lower than 0 ℃.If judged result is "Yes", then battery control unit 12 will send signal to semiconductor heating/refrigerating element 7 and liquid circulation pump 9, and semiconductor heating/refrigerating element 7 is opened heating function, and liquid circulation pump 9 brings into operation.Semiconductor heating/refrigerating element 7 heats by 5 pairs of circulation fluids 6 of fluid box rapidly.Heated circulation fluid 6 is pumped into by liquid circulation pump 9 in the liquid-circulating pipeline 8 of liquid stream plate 4 and circulates.Liquid flows and after plate 4 is heated heat is delivered on the battery module 2 by heat pipe 3, thereby has realized the heating to battery module 2.Semiconductor heating/refrigerating element 7 and liquid circulation pump 9 continuous firings, until the battery operation temperature reaches in 0~25 ℃ the scope, battery control unit 12 sends signal to semiconductor heating/refrigerating element 7 and liquid circulation pump 9, semiconductor heating/refrigerating element 7 stopped heatings, liquid circulation pump 9 quits work; (2) if judged result is "No", battery control unit 12 is analyzed signal again, whether the battery operation temperature is lower than 0 ℃ judged result also for "No", then battery control unit 12 sends signal to semiconductor heating/refrigerating element 7, liquid circulation pump 9, fan 11, semiconductor heating/refrigerating element 7 is opened refrigerating function, and liquid circulation pump 9 and fan 11 bring into operation.Semiconductor heating/refrigerating element 7 freezes by 5 pairs of circulation fluids 6 of fluid box rapidly.The circulation fluid 6 of cooling is pumped into by liquid circulation pump 9 in the liquid-circulating pipeline 8 of liquid stream plate 4 and circulates.Liquid stream plate 4 is carried out heat exchange by heat pipe 3 and battery module 2 after the cooling, thereby has realized the cooling to battery module 2.Semiconductor heating/refrigerating element 7 can produce a large amount of heats at opposite side in kind of refrigeration cycle liquid 6, these heats are delivered to radiator 10, by fan 11 heat is spilt into outside the battery case 1 again.Semiconductor heating/refrigerating element 7, liquid circulation pump 9 and fan 11 continuous firings, until the battery operation temperature reaches in 0~25 ℃ the scope, battery control unit 12 sends signal to semiconductor heating/refrigerating element 7, liquid circulation pump 9 and fan 11, semiconductor heating/refrigerating element 7 stops refrigeration, and liquid circulation pump 9 and fan 11 quit work.
Embodiment 2
Power battery thermal management system as described in Example 1, battery module 2 volumes in battery case 1 are little, caloric value is few, when heat pipe 3 heat-transfer capabilities of perhaps selecting are stronger, in the situation that other composition structures are constant, be adjusted at the quantity of the slit insertion heat pipe 3 between the whenever adjacent battery module 2, insert a heat pipe 3 and can realize preferably heat-transfer effect.
Embodiment 3
Power battery thermal management system as described in Example 1, battery module 2 volumes in battery case 1 are larger, caloric value is more, when heat pipe 3 heat-transfer capabilities of perhaps selecting are weak, in the situation that other composition structures are constant, be adjusted at the quantity of the slit insertion heat pipe 3 between the whenever adjacent battery module 2, evenly 4 heat pipes 3 are inserted at the interval, to keep preferably heat-transfer effect.
Embodiment 4
Power battery thermal management system as described in Example 1, when the battery module 2 living thermal powers in the battery case 1 are larger, in the situation that other composition structures are constant, two or more semiconductor heating/refrigerating elements 7 can be connected in parallel, to increase whole heating or cooling effect, to keep preferably heat transfer rate and thermal management effect.
Above embodiment only is the detailed description to individual program in the utility model specific implementation process, and does not mean that the restriction to the utility model protection range.

Claims (10)

1. power battery thermal management system, it is characterized in that: mainly formed by battery case, heat pipe, liquid stream plate, fluid box, semiconductor heating/refrigerating element, liquid circulation pump, battery control unit, temperature sensor, radiator, fan, radiator and fan are installed on the battery case outside, radiator mainly is comprised of thermal conductive surface and fin two parts, radiator is fixedly installed in the outer surface of battery case, and fan is installed on radiator relatively with a side of fin; Heat pipe, liquid stream plate, fluid box, semiconductor heating/refrigerating element, liquid circulation pump, battery control unit and temperature sensor are fixed in the battery case, the battery module that is installed on battery case organically combines with being arranged in parallel, one or more heat pipe is inserted in slit between whenever adjacent battery module, heat pipe is the inverted "L" shaped shape, formed by vertical tube and transverse tube, the cross section of heat pipe is rectangle, the vertical tube side surface of heat pipe and the surface of adjacent battery modules fit tightly, be fixed with liquid stream plate above in battery case, being positioned at battery module, the transverse tube of heat pipe is overlapped on the liquid stream plate, fit tightly with liquid stream plate, liquid stream plate is inner metallic plate with the liquid-circulating pipeline, the liquid-circulating pipeline is with inlet and liquid outlet, the inlet of liquid-circulating pipeline and liquid outlet are connected with liquid-circulating delivery side of pump and import by pipeline, liquid circulation pump is connected with fluid box by catheter again, fluid box is the inner closed metal box that is filled with circulation fluid, fluid box is installed in the madial wall position near battery case, outer surface at the close battery case of fluid box is equipped with semiconductor heating/refrigerating element, one side and the fluid box of semiconductor heating/refrigerating element fit tightly, position corresponding with semiconductor heating/refrigerating element on the battery case arranges opening, and semiconductor heating/refrigerating element fits tightly by the thermal conductive surface that opening passes the radiator in battery case and the battery case outside; Gap between the adjacent battery modules in battery case also is equipped with for the temperature sensor that gathers temperature between battery module, being fixedly installed in battery control unit in the battery case receives the temperature data of temperature sensor collection by connection line and processes, battery control unit is by wire and liquid circulation pump, semiconductor heating/refrigerating element and fan connect, according to temperature data result opening by wire signal control liquid circulation pump, close, opening of control semiconductor heating/refrigerating element, opening of pass and heating or cooling condition and control fan, close.
2. power battery thermal management system according to claim 1, be further characterized in that: described heat pipe is that inside possesses reversible heat pipe capillaceous.
3. power battery thermal management system according to claim 1, be further characterized in that: described radiator is the aluminum alloy finned radiator, at the finned fin outside of radiator provided with fan.
4. power battery thermal management system according to claim 1, be further characterized in that: the surfaces externally and internally at battery case scribbles heat insulating coat.
5. power battery thermal management system according to claim 1 is further characterized in that: between battery module and the described battery case pad that the elasticity heat-barrier material is made can also be installed.
6. power battery thermal management system according to claim 1 is further characterized in that: can smear on the heat pipe surface heat conductive silica gel that heat pipe and battery module surface are fitted tightly when heat pipe is installed.
7. power battery thermal management system according to claim 1 is further characterized in that: can insert 1~4 heat pipe between the adjacent battery modules.
8. power battery thermal management system according to claim 1, be further characterized in that: described fluid box optimal selection is aluminium alloy liquid case.
9. power battery thermal management system according to claim 1 is further characterized in that: described liquid stream plate is aluminum alloy melt stream plate, on it with the hole that can penetrate heat pipe.
10. power battery thermal management system according to claim 1 is further characterized in that: can be connected in parallel by two or more semiconductor heating/refrigerating elements.
CN 201220511191 2012-09-29 2012-09-29 Thermal management system of power battery Withdrawn - After Issue CN202839901U (en)

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CN103715473A (en) * 2012-09-29 2014-04-09 北京有色金属研究总院 Thermal management system of power battery
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CN109346798A (en) * 2018-10-09 2019-02-15 合肥蛮牛动力科技有限公司 A kind of thermostat in battery pack box
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WO2022028433A1 (en) * 2020-08-04 2022-02-10 中国华能集团清洁能源技术研究院有限公司 Heat pipe type thermal management device and method for energy storage battery module

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CN103715473A (en) * 2012-09-29 2014-04-09 北京有色金属研究总院 Thermal management system of power battery
CN103715473B (en) * 2012-09-29 2016-01-20 北京有色金属研究总院 A kind of power battery thermal management system
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CN104600337A (en) * 2013-11-01 2015-05-06 捷温汽车***(中国)有限公司 Temperature regulation device for electrochemical power supply
CN103746153A (en) * 2013-12-04 2014-04-23 上海理工大学 Ultra-high capacity energy storage lithium ion battery pack heat dissipation apparatus
WO2015096066A1 (en) * 2013-12-25 2015-07-02 深圳市依思普林科技有限公司 Battery management system for electric automobile and control method thereof
CN103928728A (en) * 2014-04-22 2014-07-16 哈尔滨工业大学(威海) Battery heat management system with heat pipes with temperature self-adaption function coupled to single-phase liquid loop to transfer heat
CN104821419B (en) * 2015-04-29 2017-09-29 安徽江淮汽车集团股份有限公司 A kind of batteries of electric automobile group heat management device
CN104821419A (en) * 2015-04-29 2015-08-05 安徽江淮汽车股份有限公司 Heat management device for battery pack of electric vehicle
CN105811043A (en) * 2016-03-21 2016-07-27 郑州比克新能源汽车有限公司 Thermal management system for power battery of pure electric vehicle
CN106410321A (en) * 2016-10-21 2017-02-15 江苏理工学院 Battery pack heat management device
CN106935937A (en) * 2017-03-09 2017-07-07 宁波诺丁汉大学 A kind of electric automobile lithium battery heat management system based on heat pipe
CN107150602A (en) * 2017-04-27 2017-09-12 浙江壹舸能源有限公司 BMS battery management systems
CN107317065A (en) * 2017-06-23 2017-11-03 东风商用车有限公司 A kind of power battery thermal management system and its control method based on TEC
CN107317065B (en) * 2017-06-23 2023-04-25 东风商用车有限公司 TEC-based power battery thermal management system and control method thereof
CN109245191A (en) * 2017-07-10 2019-01-18 丰田自动车株式会社 Power supply unit
CN109245191B (en) * 2017-07-10 2022-02-25 丰田自动车株式会社 Power supply equipment
CN108321327A (en) * 2018-01-26 2018-07-24 山东金光复合材料股份有限公司 A kind of used in new energy vehicles battery case
CN108666701A (en) * 2018-04-18 2018-10-16 刘军涛 Integrated thermal management suite
CN109346798A (en) * 2018-10-09 2019-02-15 合肥蛮牛动力科技有限公司 A kind of thermostat in battery pack box
WO2022028433A1 (en) * 2020-08-04 2022-02-10 中国华能集团清洁能源技术研究院有限公司 Heat pipe type thermal management device and method for energy storage battery module
CN112206115A (en) * 2020-08-27 2021-01-12 浙江大学 Medical intelligent ward round car capable of continuously and stably supplying power

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