CN109524741B - A liquid cooling plate combined with a cooling sheet, a power battery cooling liquid cooling system and a control method - Google Patents
A liquid cooling plate combined with a cooling sheet, a power battery cooling liquid cooling system and a control method Download PDFInfo
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- 238000001816 cooling Methods 0.000 title claims abstract description 141
- 239000007788 liquid Substances 0.000 title claims abstract description 80
- 239000000110 cooling liquid Substances 0.000 title claims abstract description 51
- 238000000034 method Methods 0.000 title claims abstract description 24
- 230000017525 heat dissipation Effects 0.000 claims abstract description 38
- 239000002826 coolant Substances 0.000 claims abstract description 8
- 230000005679 Peltier effect Effects 0.000 claims abstract description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 71
- 238000005192 partition Methods 0.000 claims description 18
- 238000005057 refrigeration Methods 0.000 claims description 17
- 238000004458 analytical method Methods 0.000 claims description 7
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 6
- 239000007770 graphite material Substances 0.000 claims description 4
- 239000000741 silica gel Substances 0.000 claims description 4
- 229910002027 silica gel Inorganic materials 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 3
- 239000012809 cooling fluid Substances 0.000 claims 1
- 230000007423 decrease Effects 0.000 claims 1
- 230000002708 enhancing effect Effects 0.000 claims 1
- 239000002210 silicon-based material Substances 0.000 abstract description 2
- 239000010410 layer Substances 0.000 description 9
- 239000011229 interlayer Substances 0.000 description 8
- 230000000694 effects Effects 0.000 description 4
- 238000007726 management method Methods 0.000 description 4
- 239000000178 monomer Substances 0.000 description 4
- 229910000838 Al alloy Inorganic materials 0.000 description 2
- 238000004146 energy storage Methods 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
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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
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/61—Types of temperature control
- H01M10/613—Cooling or keeping cold
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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
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/63—Control systems
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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
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/63—Control systems
- H01M10/633—Control systems characterised by algorithms, flow charts, software details or the like
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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
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/655—Solid structures for heat exchange or heat conduction
- H01M10/6554—Rods or plates
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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
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
- H01M10/6567—Liquids
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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
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- Chemical Kinetics & Catalysis (AREA)
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- Automation & Control Theory (AREA)
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Abstract
本发明公开了一种结合制冷片的液冷板、动力电池散热液冷系统及控制方法，利用帕尔贴效应制成的制冷片安装于液冷板流道底部，通过与高导热硅材料制备的导热块接触，实现与各流道内冷却液的高效热交换，在液冷系统散热过程中，控制器根据电池模组的温度信息实时控制冷却液的循环流动和制冷片的功率输出，制冷片工作时冷端瞬间产生低温，通过导热块的热传导，使其周围冷却液的温度迅速降低，实现模组间和单个模组内最高温度和最大温差的快速降低，同时，控制器会实时根据模组的温度信息，调节各制冷片的输出功率，实现快速降温过程的温度均衡，本发明提高了动力电池散热的快速性以及散热过程的温度均衡性，有效控制电池模组的温升和温差。
The invention discloses a liquid cooling plate combined with a cooling sheet, a power battery heat dissipation liquid cooling system and a control method. The cooling sheet made by using the Peltier effect is installed at the bottom of the flow channel of the liquid cooling plate, and is prepared by combining with a high thermal conductivity silicon material. During the cooling process of the liquid cooling system, the controller controls the circulating flow of the cooling liquid and the power output of the cooling fins in real time according to the temperature information of the battery module. When working, the cold end instantly generates a low temperature, and the temperature of the surrounding coolant is rapidly reduced through the heat conduction of the heat conduction block, so as to realize the rapid reduction of the maximum temperature and the maximum temperature difference between modules and within a single module. The temperature information of the group can be adjusted to adjust the output power of each refrigerating sheet to achieve temperature balance in the rapid cooling process.
Description
Technical Field
The invention relates to a power battery heat management technology for a new energy automobile, in particular to a liquid cooling plate capable of achieving rapid and balanced heat dissipation, a liquid cooling heat dissipation system formed by the liquid cooling plate and a liquid cooling control method.
Background
In the face of increasingly serious energy crisis and environmental pollution problems, energy-saving and environment-friendly new energy automobiles are receiving more and more attention from people. Automobile manufacturers in various countries increasingly invest in developing pure Electric Vehicles (EV) and Hybrid Electric Vehicles (HEV). At present, one of the key factors restricting the further popularization of new energy automobiles is the mileage problem, which mainly comes from the fact that the energy density of a power battery is low, and the thermal stability of the power battery is remarkably reduced along with the increase of the energy density of the battery, so that stricter requirements are provided for a thermal management system of the power battery.
At present, aiming at the heat management mode of a power battery, the heat transfer media are mainly divided into three types: air cooling, liquid cooling and phase change cooling. The air cooling system is simple in structure, but poor in cooling effect, the heat conductivity coefficient is low during phase-change cooling in a single phase, a certain distance is reserved from application, and the liquid cooling has a good cooling effect, so that the air cooling system becomes a mainstream scheme of a power battery heat management system. The liquid cooling plate is generally arranged below or on the side face of the power battery module, the flow channel is divided inside to guide the flow of cooling liquid, when the power battery module is cooled, the water pump starts the cooling liquid to flow into the inlet of the liquid cooling plate, the cooling liquid flows to the outlet through the internal flow channel in a circulating mode, the heat of the power battery is taken away through heat convection with the high-temperature module, the cooling liquid flowing out of the liquid cooling plate passes through the radiator and then is led out to the air, and therefore the circulating cooling of the liquid cooling system is achieved. Due to the grouping application of the power battery monomers, the heat quantity is more in the middle area, the number of the edge areas is small, the temperature imbalance among the battery monomers is increased, the problem cannot be effectively solved by a liquid cooling system with a common structure, serious potential safety hazards exist in long-term use, and obviously, the liquid cooling system needs to be optimally designed to improve the balanced heat dissipation of the power battery.
Patent grant publication No. CN 104253289B, published 2017, 6 and 9, the name of the invention creation is a power battery module heat dissipation unit and a power battery heat dissipation module, the application discloses a power battery module heat dissipation unit and a battery heat dissipation module, and the uniform temperature of a power battery monomer is realized by additionally arranging a conducting plate; the patent publication No. CN 107403975A, published 2017, 11 and 28, discloses a current equalizing device and method for a battery energy storage liquid cooling system, and discloses a current equalizing device for a battery energy storage liquid cooling system, wherein battery modules are connected in parallel, and a throttle pipe is arranged at an inlet of each module, so that the temperature uniformity of the modules is ensured on the premise of ensuring the heat dissipation effect. The defects of the patent are as follows: 1) the temperature difference between the battery modules cannot be effectively reduced in time; 2) the temperature rise and temperature difference among the single batteries in the module can not be effectively reduced; 3) the heat dissipation process is slow and takes a long time.
Disclosure of Invention
In view of the above disadvantages of the prior art, the invention provides a peltier effect-based rapid balanced heat dissipation liquid cooling system for a power battery and a control method thereof, which are used for a power battery pack of a new energy automobile, realize rapid balanced heat dissipation among battery monomers, maintain a normal working temperature range of the power battery pack, and improve the service performance and the service life of the power battery.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows: the utility model provides a power battery that combines refrigeration piece is with quick balanced heat dissipation liquid cooling system, includes: coolant liquid circulation system and temperature control system, coolant liquid circulation system include liquid cold plate, water inlet, delivery port, water pump, relief valve, storage water tank, radiator and water pipe, temperature control system includes battery module, battery, controller, power cord, high-pressure control interface, high-pressure control line, low pressure control line, temperature sensor and temperature information acquisition line. The battery module is located above the liquid cooling plate, the temperature sensors are arranged on the surfaces of single batteries in each battery module, the temperature information acquired by the temperature sensors is transmitted to the controller by the temperature information acquisition lines for analysis and processing, the storage battery supplies power to the controller through a power line, the controller is respectively connected with the water pump and the pressure release valve through low-voltage control lines to realize control of the flowing state of the cooling liquid, meanwhile, the high-voltage control lines are connected to a high-voltage control interface located on the liquid cooling plate, the controller adjusts the output voltage of the high-voltage control lines according to the analysis and processing results of the battery temperature information to realize control of the rapid balanced heat dissipation process, the water inlet and the water outlet are located on two sides of the liquid cooling plate, the high-voltage control interface and the water outlet are located on the same side, but the relative vertical height is lower, the cooling liquid circulation system enables the water outlet of the liquid cooling plate to be sequentially connected with the radiator through a water pipe, The water storage tank, the pressure release valve, the water pump and the water inlet are connected.
The liquid cooling plate comprises a liquid cooling plate upper cover and a liquid cooling plate base, the liquid cooling plate upper cover and the liquid cooling plate base are made of light high-heat-conduction materials such as aluminum alloy and are bonded together in a seamless mode through ultrasonic welding, a water inlet, a water outlet and a high-pressure control interface are arranged on the liquid cooling plate base, a flow channel partition plate, an interlayer, a heat conduction block, heat conduction fins, a refrigerating sheet, heat dissipation fins, a fixing device and a high-pressure control line are arranged inside the base, the liquid cooling plate base is divided into an upper layer and a lower layer through the interlayer, the upper layer is a liquid flowing area, the lower layer is a heat dissipation control area, the water inlet and the water outlet are respectively located on two sides of the liquid cooling plate, cooling liquid flows in from the water inlet, flows through a plurality of flow channels divided by the flow channel partition plate and then flows out from the water outlet, a plurality of square concave holes are formed in the interlayer corresponding to each flow channel, the size of the hole is large at the top and the small at the bottom, and the heat conduction block is made of high-heat-conduction graphite material, the cooling fin is arranged on the upper portion of the concave hole, the heat exchange area of the heat conduction block and cooling liquid is further increased, meanwhile, the turbulence degree of the cooling liquid is enhanced through the protruded heat conduction fins, the convection heat exchange coefficient of the cooling liquid and solid is improved, the refrigerating fin is arranged on the lower portion of the concave hole and fixed on an interlayer through a fixing device, the cold end of the refrigerating fin is in contact with the heat conduction block, the contact surface of the refrigerating fin is coated with heat conduction silica gel, the hot end of the refrigerating fin extends out of the lower layer of the liquid cooling plate base, the heat radiating fins are arranged on the surface of the hot end of the refrigerating fin, the wind tunnel at the peripheral side of the liquid cooling plate base is matched with the refrigerating fin, the heat of the hot end of the refrigerating fin is rapidly dissipated, the refrigerating fin is connected with a high-voltage control interface through a high-voltage control line, and the refrigerating fins can work independently relative to each other.
The invention provides a liquid cooling system control method for a rapid balanced heat dissipation liquid cooling system for a power battery combined with a refrigerating sheet, which comprises the following steps:
the temperature sensor transmits the acquired temperature information to the controller in real time, and the controller analyzes and processes the temperature information to obtain two types of temperature data, wherein one type is the highest temperature T in a single battery modulemax.si(i ═ 1,2, 3.; for module number) and the maximum temperature difference Tdif.si(i 1,2, 3.; stands for module number), and the other is the maximum temperature difference T between battery modulesmax.wj(j represents the serial number of the high-temperature module), and respectively corresponding the collected temperature data to the set maximum temperature upper limit value T in the single modulemax.sMaximum temperature difference upper limit value Tdif.sAnd the maximum temperature difference upper limit value T between the modulesmax.wContrast, if the highest temperature or the maximum temperature difference in a certain battery module exceed the upper limit value, the controller controls the water pump to be opened to enable the cooling liquid to flow circularly, each battery module corresponds to one liquid-cooling plate internal flow channel, the refrigeration piece corresponding to the lower part of the highest temperature position of the battery module works, low temperature is rapidly generated at the cold end of the refrigeration piece, the temperature of the surrounding cooling liquid is rapidly reduced through heat conduction of the heat conduction block, and the high-temperature electric core and the cooling liquid in the module are rapidly cooledLiquid heat exchange is enhanced, so that the growing trend of the highest temperature and the maximum temperature difference in the battery module is quickly and effectively inhibited, meanwhile, the controller analyzes and gives reasonable output voltage of a plurality of refrigerating sheets in the flow channel according to the temperature information acquired in real time, controls the refrigerating power of the refrigerating sheets, and realizes quick and balanced heat dissipation of the battery module until all temperature data in the module are in a reasonable temperature range; if the maximum temperature difference between the battery modules exceeds the upper limit value, the controller controls the cooling liquid to circularly flow, a plurality of refrigerating pieces work simultaneously in a corresponding flow passage below the high-temperature module, the temperature of the cooling liquid in the whole flow passage is rapidly reduced, the whole heat of the high-temperature module is rapidly and uniformly taken away, the controller reasonably adjusts the refrigerating power of each refrigerating piece in the module heat dissipation process according to the temperature information collected in real time, the rapid reduction of the maximum temperature difference between the modules is realized, meanwhile, the rise of the maximum temperature difference in the battery modules is not caused, when two types of temperature data of the batteries meet the requirements, the liquid cooling heat dissipation process is finished, and each refrigerating piece stops working.
Compared with the prior art, the invention has the following beneficial effects:
1. according to the rapid and balanced cooling liquid system for the power battery, which is combined with the refrigerating sheets, the refrigerating sheets arranged in different runners are utilized, the refrigerating power of the refrigerating sheets is reasonably adjusted, the temperature difference among battery modules can be timely and effectively reduced, and the problem of temperature accumulation of the middle module is effectively solved;
2. according to the rapid and balanced cooling liquid system for the power battery combined with the refrigerating plates, the refrigerating plates arranged at different positions in the front and back of each flow passage are utilized, the refrigerating power of the refrigerating plates is reasonably adjusted, the temperature rise and the temperature difference among the single batteries in the module can be effectively reduced in time, and the temperature distribution consistency of the single batteries in the module is maintained;
3. according to the rapid balanced cooling liquid cooling system for the power battery combined with the refrigerating sheet, the rapid cooling effect of the refrigerating sheet is utilized, and the finned heat conducting block made of high-heat-conducting silicon materials is matched, so that the temperature of cooling liquid can be rapidly reduced, and rapidness and balance of temperature reduction in a cooling process are realized.
Drawings
FIG. 1 is a system diagram of a rapid equalization heat sink fluid cooling device of the present invention;
FIG. 2 is a side cross-sectional view of a liquid cooling plate of the present invention;
FIG. 3 is a top view of a liquid cooled plate base of the present invention;
FIG. 4 is a perspective view of a liquid cooling plate according to the present invention;
FIG. 5 is a flow chart of the operation of the heat dissipation system of the present invention;
in the figure, 1-liquid cooling plate, 2-water pump, 3-pressure release valve, 4-water storage tank, 5-radiator, 6-controller, 7-accumulator, 8-battery module, 9-high pressure control interface, 10-water outlet, 11-water inlet, 12-water pipe, 13-low pressure control line, 14-high pressure control line, 15-temperature information acquisition line, 16-temperature sensor, 17-power line, 18-liquid cooling plate upper cover, 19-liquid cooling plate base, 20-flow channel partition, 21-partition, 22-wind tunnel, 23-heat conduction block, 24-heat conduction fin, 25-fixing device, 26-heat dissipation fin and 27-refrigeration piece.
Detailed Description
The structure and the working principle of the rapid equalization heat dissipation liquid cooling device for a power battery combined with a refrigeration sheet of the invention are further explained with reference to the attached drawings.
As shown in fig. 1, an embodiment of the present invention provides a rapid balanced cooling system for a power battery, which is combined with a cooling plate, and includes: coolant liquid circulating system and temperature control system, coolant liquid circulating system include liquid cold plate 1, water inlet 11, delivery port 10, water pump 2, relief valve 3, storage water tank 4, radiator 5 and water pipe 12, temperature control system includes battery module 8, battery 7, controller 6, power cord 17, high-pressure control interface 9, high-pressure control line 14, low pressure control line 13, temperature sensor 16 and temperature information acquisition line 15. The battery module 8 is located above the liquid cooling plate 1, the temperature sensor 16 is arranged on the surface of each single battery in each battery module 8, the temperature information acquisition line 15 transmits the acquired temperature information to the controller 6 for analysis and processing, the storage battery 7 supplies power to the controller 6 through the power line 17, the controller 6 is respectively connected with the water pump 2 and the pressure release valve 3 through the low-voltage control line 13 to realize control of the flowing state of the cooling liquid, meanwhile, the high-voltage control line 14 is connected to the high-voltage control interface 9, the controller 6 regulates the output voltage of the high-voltage control line 14 according to the analysis and processing result of the battery temperature information to realize control of the rapid balanced heat dissipation process, the cooling liquid water inlet 11 and the cooling liquid water outlet 10 are located on two sides of the liquid cooling plate 1, the high-voltage control interface 9 and the cooling liquid water outlet 10 are located on the same side, but the relative vertical height is lower than the cooling liquid outlet 10, the cooling liquid cooling plate water outlet 10 is sequentially connected with the radiator 5 through the water pipe 12, The water storage tank 4, the pressure release valve 3, the water pump 2 and the water inlet 11 are connected.
As shown in fig. 2,3 and 4, a liquid cooling plate 1 of the rapid balanced heat dissipation liquid cooling system for a power battery combined with a cooling fin according to an embodiment of the present invention includes a liquid cooling plate upper cover 18 and a liquid cooling plate base 19, which are made of light high thermal conductive materials such as aluminum alloy, and are seamlessly bonded together by ultrasonic welding, where the liquid cooling plate base 19 includes a water inlet 11, a water outlet 10, a flow channel partition plate 20, an interlayer 21, a heat conduction block 23, a heat conduction fin 24, a cooling fin 27, a heat dissipation fin 26, a fixing device 25, a high voltage control interface 9 and a high voltage control line 14; the liquid cooling plate base 19 is divided into an upper layer and a lower layer by an interlayer 21, the upper layer is a liquid flowing area, the lower layer is a heat dissipation control area, a water inlet 11 and a water outlet 10 are respectively positioned at two sides of the liquid cooling plate 1, cooling liquid flows in from the water inlet 11, flows through a plurality of flow channels divided by a flow channel partition plate 20 and then flows out from the water outlet 10, a plurality of square concave holes are formed on the interlayer 21 corresponding to each flow channel, the size of the hole is large at the upper part and small at the lower part, a heat conduction block 23 is made of high heat conduction graphite material and is positioned at the upper part of the concave hole, a sealing waterproof colloid is coated on the periphery of the heat conduction block, a heat conduction fin 24 is arranged at the upper part of the heat conduction block 23, the heat exchange area between the heat conduction block 23 and the cooling liquid is further increased, meanwhile, the turbulence degree of the cooling liquid is enhanced by the protruded heat conduction fin 24, the convection heat exchange coefficient between the cooling liquid and the solid is improved, a refrigerating sheet 27 is arranged at the lower part of the concave hole and is fixed on the interlayer 21 by a fixing device 25, the cold junction and the contact of heat conduction piece 23 of refrigeration piece 27, contact surface scribbles heat conduction silica gel, the hot junction stretches out to be located 19 lower floors of liquid cold plate base, there is radiating fin 26 at the surface mounting of 27 hot junctions of refrigeration piece, cooperate the wind-tunnel 22 that liquid cold plate base 19 was seted up all around, realize the thermal quick dissipation in 27 hot junctions of refrigeration piece, each refrigeration piece 27 passes through high-voltage control line 14 and is connected with control interface 9, each refrigeration piece can work independently relatively each other.
As shown in fig. 5, a method for controlling a rapid balanced cooling liquid system for a power battery combined with a cooling plate according to an embodiment of the present invention is as follows: the temperature sensor 16 transmits the acquired temperature information to the controller 6 in real time, and the controller 6 analyzes and processes the temperature information to obtain two types of temperature data, wherein one type is the highest temperature T in a single battery modulemax.si(i ═ 1,2, 3.; for module number) and the maximum temperature difference Tdif.si(i 1,2, 3.; stands for module number), and the other is the maximum temperature difference T between battery modulesmax.wj(j represents the serial number of the high-temperature module) respectively corresponding to the set maximum temperature upper limit value T in the single modulemax.sMaximum temperature difference upper limit value Tdif.sAnd the maximum temperature difference upper limit value T between the modulesmax.wComparing the measured values with each other, if the maximum temperature T in a certain battery module 8 is reachedmax.siOr maximum temperature difference Tdif.siWhen the temperature of the battery module 8 exceeds the upper limit value, the controller 6 controls the water pump 2 and the pressure release valve 3 to be opened through the low-voltage control line to enable cooling liquid to flow circularly, each battery module 8 corresponds to a flow channel inside the liquid cooling plate, the refrigerating sheet 27 corresponding to the lower part of the highest temperature position of the battery module 8 works, low temperature is rapidly generated at the cold end of the refrigerating sheet 27, heat conduction is carried out through the heat conduction block 23, the temperature of the surrounding cooling liquid is rapidly reduced, heat exchange between a high-temperature battery core in the module 8 and the cooling liquid is enhanced, the growing trend of the highest temperature and the maximum temperature difference in the battery module 8 is rapidly and effectively inhibited, meanwhile, the controller 6 gives reasonable output voltages of the plurality of refrigerating sheets 27 in the flow channel according to the temperature information collected in real time, controls the refrigerating power of the refrigerating sheets 27, and achieves rapid and balanced heat dissipation of the battery module 8 until all temperature data in the module are in a reasonable temperature range; if the maximum temperature difference T between the battery modules 8max.wjExceed the upper limit value, controller 6 control cooling liquid circulation flow, a plurality of refrigeration pieces 27 simultaneous working in the runner that this high temperature module 8 below corresponds, the cooling liquid temperature reduces rapidly in the whole runner, the whole heat of module 8 is evenly taken away rapidly, controller 6 is according to the temperature information of gathering in real time, the refrigeration power of each refrigeration piece 27 in the reasonable adjustment module 8 radiating process, realize the mouldThe fast reduction of the biggest difference in temperature between group 8 simultaneously, does not cause the rising of the biggest difference in temperature in the battery module 8, and when two kinds of temperature data of battery all satisfied the requirement, the liquid cooling heat dissipation process was ended, each refrigeration piece 27 stop work.
The above-listed detailed description is only a specific description of a possible embodiment of the present invention, and they are not intended to limit the scope of the present invention, and equivalent embodiments or modifications made without departing from the technical spirit of the present invention should be included in the scope of the present invention.
Claims (8)
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| CN201811166375.XA CN109524741B (en) | 2018-10-08 | 2018-10-08 | A liquid cooling plate combined with a cooling sheet, a power battery cooling liquid cooling system and a control method |
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| CN201811166375.XA CN109524741B (en) | 2018-10-08 | 2018-10-08 | A liquid cooling plate combined with a cooling sheet, a power battery cooling liquid cooling system and a control method |
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| CN112490539B (en) * | 2020-05-12 | 2021-09-03 | 西华大学 | Distributed temperature equalization method for battery pack in high-safety electric vehicle |
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| CN112490578B (en) * | 2020-11-11 | 2021-11-23 | 华南理工大学 | Power battery module |
| CN113921939B (en) * | 2021-09-08 | 2025-04-18 | 安徽瑞露科技有限公司 | A battery pack adjustable heat dissipation device |
| CN113889684B (en) * | 2021-09-15 | 2023-09-29 | 东风时代(武汉)电池系统有限公司 | Battery pack thermal management system and method |
| CN113948760B (en) * | 2021-10-26 | 2022-11-15 | 傲普(上海)新能源有限公司 | Energy storage system with low energy consumption and uniform temperature and method thereof |
| CN114039124A (en) * | 2021-11-09 | 2022-02-11 | 镇江市高等专科学校 | Power battery multistage heat dissipation system based on magnetic refrigeration effect and control method |
| CN114388929A (en) * | 2021-11-12 | 2022-04-22 | 长安大学 | A cooling system and method for automotive power battery module |
| CN115799713A (en) * | 2022-12-03 | 2023-03-14 | 浙大城市学院 | Lightweight new energy battery cooling device |
| CN116365109B (en) * | 2023-06-01 | 2023-08-04 | 苏州精控能源科技有限公司 | Thermal management method and device for cylindrical lithium battery |
| CN117977059A (en) * | 2024-03-28 | 2024-05-03 | 深圳市顺熵科技有限公司 | Battery liquid cooling system and liquid cooling method |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202127079U (en) * | 2011-06-23 | 2012-01-25 | 同济大学 | A water cooling system for electric vehicle power battery pack based on thermoelectric refrigeration |
| JP2013098082A (en) * | 2011-11-02 | 2013-05-20 | Toyota Industries Corp | Temperature control mechanism for battery |
| CN203166039U (en) * | 2013-03-12 | 2013-08-28 | 郑州宇通客车股份有限公司 | Power battery liquid cooling device |
| CN103512080A (en) * | 2013-10-27 | 2014-01-15 | 王涛 | Semiconductor temperature-difference power generation heating water heater system by using waste heat of chimney and boiler |
| CN105576113A (en) * | 2016-02-16 | 2016-05-11 | 广东富信科技股份有限公司 | Semiconductor refrigeration component |
| CN105591176A (en) * | 2014-11-11 | 2016-05-18 | 福特全球技术公司 | Magnetically Controlled Traction Battery Thermal Plate |
| CN106374162A (en) * | 2016-11-02 | 2017-02-01 | 上海工程技术大学 | A method and device for thermal management of battery modules based on thermoelectric effect |
| CN206259460U (en) * | 2016-09-09 | 2017-06-16 | 合普新能源科技有限公司 | A kind of heat abstractor of power battery pack system |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103280608A (en) * | 2013-01-22 | 2013-09-04 | 江苏大学 | Battery module containing double water cooling plates |
| KR101534913B1 (en) * | 2013-06-17 | 2015-07-08 | 현대자동차주식회사 | Battery pack air cooling structure provided with thermoelectric element and method thereof |
| CN106058370B (en) * | 2016-08-03 | 2018-11-09 | 江苏大学 | A kind of double water cooling electrokinetic cell systems and its control method based on heat conductive silica gel |
| CN207651636U (en) * | 2018-01-04 | 2018-07-24 | 福建省汽车工业集团云度新能源汽车股份有限公司 | A kind of automobile power cell packet heat management system and automobile |
-
2018
- 2018-10-08 CN CN201811166375.XA patent/CN109524741B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202127079U (en) * | 2011-06-23 | 2012-01-25 | 同济大学 | A water cooling system for electric vehicle power battery pack based on thermoelectric refrigeration |
| JP2013098082A (en) * | 2011-11-02 | 2013-05-20 | Toyota Industries Corp | Temperature control mechanism for battery |
| CN203166039U (en) * | 2013-03-12 | 2013-08-28 | 郑州宇通客车股份有限公司 | Power battery liquid cooling device |
| CN103512080A (en) * | 2013-10-27 | 2014-01-15 | 王涛 | Semiconductor temperature-difference power generation heating water heater system by using waste heat of chimney and boiler |
| CN105591176A (en) * | 2014-11-11 | 2016-05-18 | 福特全球技术公司 | Magnetically Controlled Traction Battery Thermal Plate |
| CN105576113A (en) * | 2016-02-16 | 2016-05-11 | 广东富信科技股份有限公司 | Semiconductor refrigeration component |
| CN206259460U (en) * | 2016-09-09 | 2017-06-16 | 合普新能源科技有限公司 | A kind of heat abstractor of power battery pack system |
| CN106374162A (en) * | 2016-11-02 | 2017-02-01 | 上海工程技术大学 | A method and device for thermal management of battery modules based on thermoelectric effect |
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