WO2018137374A1 - Dispositif de refroidissement de liquide de batteries et système de batteries - Google Patents

Dispositif de refroidissement de liquide de batteries et système de batteries Download PDF

Info

Publication number
WO2018137374A1
WO2018137374A1 PCT/CN2017/109408 CN2017109408W WO2018137374A1 WO 2018137374 A1 WO2018137374 A1 WO 2018137374A1 CN 2017109408 W CN2017109408 W CN 2017109408W WO 2018137374 A1 WO2018137374 A1 WO 2018137374A1
Authority
WO
WIPO (PCT)
Prior art keywords
battery
water
inlet
liquid cooling
controller
Prior art date
Application number
PCT/CN2017/109408
Other languages
English (en)
Chinese (zh)
Inventor
王永
林志宏
徐兴无
韩宁
黄文雪
Original Assignee
合肥国轩高科动力能源有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from CN201710061597.4A external-priority patent/CN106602175A/zh
Priority claimed from CN201710061511.8A external-priority patent/CN106848465B/zh
Priority claimed from CN201710061580.9A external-priority patent/CN106654417B/zh
Application filed by 合肥国轩高科动力能源有限公司 filed Critical 合肥国轩高科动力能源有限公司
Publication of WO2018137374A1 publication Critical patent/WO2018137374A1/fr

Links

Images

Classifications

    • 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
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
    • 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
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • 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
    • 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
    • H01M10/62—Heating or cooling; Temperature control specially adapted for specific applications
    • H01M10/625—Vehicles
    • 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
    • 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
    • H01M10/635—Control systems based on ambient temperature
    • 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
    • H01M10/64—Heating or cooling; Temperature control characterised by the shape of the cells
    • H01M10/647—Prismatic or flat cells, e.g. pouch cells
    • 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
    • H01M10/6556—Solid parts with flow channel passages or pipes for heat exchange
    • 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
    • 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
    • H01M10/6568—Liquids characterised by flow circuits, e.g. loops, located externally to the cells or cell casings
    • 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

Definitions

  • the present invention relates to the field of battery protection technologies, and in particular, to a battery liquid cooling device and a battery system.
  • the battery management system (BATTERY MANAGEMENT SYSTEM, BMS for short) is generally used for monitoring, which is an active safety protection measure.
  • the battery management system also has a certain risk of failure.
  • the battery management system fails, the safe use of the battery system will not be guaranteed.
  • the battery system Since the battery system is connected by a plurality of batteries, when a single battery is out of control, if it cannot be effectively controlled, it is easily affected to other batteries, thereby causing thermal runaway of the entire battery system, and thus it is necessary to add a fire extinguishing device.
  • the battery system requires extremely high energy density. If the related components are added, it is necessary to increase the weight of the system, so that the energy density of the battery system is lowered. Therefore, it is necessary to provide a device that can both extinguish fires and ensure the energy density of the battery system.
  • the present invention provides a battery liquid cooling device and a battery system, which solves the technical problem that the battery system can ensure the energy density of the battery system while extinguishing the fire.
  • the battery liquid cooling device of the present invention comprises a liquid cooling plate, wherein the liquid cooling plate is provided with at least one through hole, and the at least one through hole is connected to a coolant flow channel in the liquid cooling plate. And the at least one through hole is sealed by a hot melt material adapted to melt after the battery corresponding to the sealed through hole is thermally runaway.
  • the battery system provided by the present invention includes at least one battery pack, each battery pack includes at least one battery, and the battery system further includes the above battery liquid cooling device, and the liquid cooling plate in the battery liquid cooling device Provided in contact with each battery;
  • the battery system further includes a cooling protection system,
  • the cooling protection system includes a controller, a water pump, and a water-cooled pipeline, wherein: the water-cooled pipeline is connected to an inlet and outlet end of the water pump, an evaporator on a vehicle to which the power battery system belongs, and the water pump, The evaporator and the water-cooling pipeline form a cooling circuit for a water supply circulation flow;
  • the controller is connected to a control end of the water pump, a battery management system of the power battery system, and the controller is used according to the The temperature collected by the battery management system controls the operation of the water pump.
  • the battery liquid cooling device and the battery system provided by the invention have a low surface temperature of the battery under normal working condition of the battery.
  • the coolant in the liquid cooling plate can be used in the cooling liquid. Normal flow in the flow path, the function of normal cooling of the battery.
  • the battery is out of control, for example, when a fire occurs, the temperature of the surface of the battery rises, so that the hot melt material in the through hole melts, thereby opening the through hole, and the coolant in the liquid cooling plate is subjected to the pressure difference between the inside and the outside.
  • the through hole is ejected to provide a stronger cooling effect and extinguish the battery flame.
  • the battery liquid cooling device provided by the present invention functions as a normal cooling function
  • the battery liquid cooling device provided by the present invention functions as a fire extinguishing device when the battery is thermally out of control.
  • the structure of the present invention is very simple, a through hole is formed in the liquid cooling plate, and the through hole is sealed with a hot melt material, and no new parts are added, so that no weight is increased, thereby ensuring that the energy density of the battery system is not lowered.
  • the battery liquid cooling device provided by the invention completely autonomously operates, and does not need to be considered as intervention, which not only saves manpower, but also ensures safety during battery use.
  • FIG. 1 is a schematic structural view of an entire battery system in an embodiment of the present invention.
  • FIG. 2 is a schematic structural view showing a part of a battery system according to an embodiment of the present invention.
  • Figure 3 is a front elevational view showing a battery system in accordance with an embodiment of the present invention.
  • Figure 4 is a partially enlarged schematic view showing the battery liquid cooling device of Figure 3;
  • Figure 5 shows a rear view of Figure 3
  • FIG. 6 is a schematic diagram showing the connection of a cooling protection system to an evaporator and a battery management system according to an embodiment of the present invention
  • an embodiment of the present invention provides a battery liquid cooling device.
  • the device includes a liquid-cooled plate 1 having at least one through hole 11a formed therein.
  • a through hole 11a is in communication with the coolant flow path 12a in the liquid cooling plate 1, and the at least one through hole 11a is sealed by a hot melt material 13a, and the hot melt material 13a is adapted to be sealed
  • the battery 2 corresponding to the through hole 11a is thermally controlled and melted.
  • the battery liquid cooling device in the normal working state of the battery 2, the surface temperature of the battery 2 is low. At this time, since the through hole 11a is sealed by the hot melt material 13a, the cooling in the liquid cooling plate 1 can be performed.
  • the liquid normally flows in the coolant flow path 12a, and functions as a normal cooling of the battery 2.
  • the battery 2 is thermally out of control, for example, when a fire occurs, the temperature of the surface of the battery 2 rises, so that the hot melt material 13a in the through hole 11a is melted, thereby opening the through hole 11a, and the coolant in the liquid cooling plate 1 is inside and outside.
  • the battery liquid cooling device provided by the present invention functions as a normal cooling function, and the battery liquid cooling device provided by the present invention functions as a fire extinguishing device when the battery 2 is thermally out of control.
  • the through hole 11a is opened in the liquid-cooled plate 1, and the through hole 11a is sealed with the hot melt material 13a, and no new parts are added, so that no weight is added, thereby ensuring energy density of the battery system. No decline.
  • the battery liquid cooling device provided by the invention completely autonomously operates, and does not need to be considered as intervention, which not only saves manpower, but also ensures safety during battery use.
  • the through hole 11a may be opened at a position where the liquid cooling plate 1 is in contact with the battery 2.
  • the through hole 11a may be sealed by the hot melt material 13a on the outer surface of the liquid cooling plate 1, and the through hole 11a may be opened at a position where the liquid cooling plate 1 is in contact with the battery 2, and
  • the hot melt material 13a seals the through hole 11a on the outer surface of the liquid cooling plate 1, and of course, other methods or the sensitivity of the hot melt material 13a to sense the surface temperature of the battery may be employed.
  • the through hole 11a may be disposed at a position where the liquid-cooled plate 1 is in contact with each of the batteries, so that when any one of the batteries is thermally runaway, the heat in the through hole 11a in contact with the thermally runaway battery may be melted.
  • the material 13a is melted, thereby opening the through hole 11a in contact with the thermal runaway battery, and the through hole 11a at other positions is not opened, thereby ensuring normal operation of other batteries that are not thermally runaway, thereby effectively improving passive safety protection performance.
  • the size of the through hole 11a may be set according to actual conditions, for example, the diameter is in the range of 0.8 mm to 1 mm, which is not limited in the present invention.
  • the hot-melt material 13a may be a hot-melt metal or an alloy, and the type of the metal or alloy may be selected according to the type of the battery, which is not limited in the invention.
  • a plurality of the above liquid-cooled plates 1 may be disposed to ensure normal use of each battery in the battery system.
  • the apparatus may further include a flow path regulating member disposed on the liquid-cooled plate 1, wherein:
  • the liquid cooling plate 1 includes a plate shell 14b and a coolant flow path disposed inside the plate shell 14b;
  • the material of the flow path regulating member includes a shape memory material for contacting the battery 2 and adjusting the flow rate of the coolant flow path according to the surface temperature of the contacted battery 2.
  • the flow path regulating member is made of a shape memory material
  • the process of adjusting the flow rate of the coolant flow path according to the temperature is actually a deformation process of the shape memory material, and the deformation of the shape memory material causes cooling.
  • the flow rate of the liquid flow path changes.
  • the deformation of the shape memory material causes the flow rate of the coolant flow path to be small, and the cooling at this time The effect is lower.
  • the surface temperature of the battery 2 in contact with the flow path regulating member rises above the deformation temperature of the shape memory material, the deformation of the shape memory material causes the flow rate of the coolant flow path to become large, and the cooling effect at this time is improved.
  • the shape memory When the surface temperature of the battery 2 contacted by the flow path regulating member is lowered to be lower than the deformation temperature of the shape memory material after strong cooling, the shape memory The deformation of the material causes the flow rate of the coolant flow passage to become small, so that the cooling strength is in a relatively low state.
  • the battery liquid cooling device includes a flow path regulating member
  • the flow regulating member is made of a shape memory material, and a change in temperature causes deformation of the flow path regulating member, thereby causing a change in the flow rate of the cooling liquid flow path, thereby realizing The function of automatic adjustment of cooling intensity.
  • the battery liquid cooling device provided by the present invention can automatically adjust the cooling intensity according to the surface temperature of the battery 2 to which the flow path regulating member is in contact with, the shape of the flow path regulating member that is in contact with the different battery 2 is different, so the liquid The cooling device has different cooling capacities for different batteries 2, and can realize differential management of the batteries 2 at different temperatures, thereby controlling the temperature difference of each battery 2 to a small range, improving the use efficiency of the battery 2, and extending the battery. 2 lifetime.
  • the flow channel regulating component can be implemented in various structural forms, which is not limited by the present invention. As shown in Figures 3 to 3, one of the optional structures is:
  • the flow path regulating member includes a contact portion 21b and a cutout portion 22b, wherein:
  • the contact portion 21b is disposed outside the plate shell 14b, and is connected to the cutout portion 22b inside the plate shell 14b through the plate shell 14b for contacting the battery 2 outside the board shell 14b;
  • the cut-off portion 22b is disposed in a coolant flow path inside the plate case 14b for deforming according to a surface temperature of the battery 2 that the connected contact portion 21b contacts to adjust a flow rate of the coolant flow path.
  • the cut-off portion 22b when the surface temperature of the battery 2 that the contact portion 21b contacts is relatively low, lower than the deformation temperature of the shape memory material, the cut-off portion 22b is in a relatively stretched state, so that the cross section of the coolant in the coolant flow path can be circulated. It is relatively small, so the flow rate of the coolant flow channel is relatively small, and the cooling intensity is relatively low.
  • the cut-off portion 22b contracts, so that the cross-section of the coolant that can flow through the coolant flow path becomes large, and the flow rate of the coolant flow path It becomes larger and the cooling strength increases.
  • the surface temperature of the battery 2 contacted by the contact portion 21b is lowered, and the deformation of the cut-off portion 22b is restored when the deformation temperature of the shape memory material is lower, so that the flow rate of the coolant flow path becomes smaller, so that the cooling strength is obtained. Change back to a lower state.
  • the contact portion 21b provided outside the plate case 14b is for contacting the battery 2, and the cut-off portion 22b provided in the coolant flow path inside the case is sensed according to the connected contact portion 21b thereof.
  • the temperature is deformed to achieve the adjustment of the flow rate of the coolant flow channel Section.
  • the flow path regulating member of the structure has a simple structure and is easy to implement.
  • the coolant flow path inside the liquid-cooled plate 1 can adopt various structural forms, and the corresponding intercepting portions 22b are arranged differently.
  • an optional structural form of the coolant flow path is that the coolant flow path includes a main inflow passage 11b, a main return passage 12b, and a main inflow passage 11b and a chamber.
  • a plurality of branch passages 13b of the main return passage 12b are described.
  • the cut-off portion 22b can be disposed in at least one of the branch passages 13b.
  • the coolant flows in from the main inflow passage 11b, passes through the branch passage 13b, and is taken out from the main return passage 12b. Since the cut-off portion 22b is provided in at least one branch passage 13b, the flow rate of the at least one branch passage 13b can be adjusted.
  • the branch passage 13b can be realized in various structural forms.
  • the branch passage 13b is disposed in the main intake passage 11b and the main return passage 12b.
  • a plurality of ribs 15b are formed between each other, and of course, other structural forms can also be realized.
  • the shape memory material may be a shape memory alloy or a heat-induced shape memory polymer.
  • the shape memory material may be a shape memory alloy or a heat-induced shape memory polymer.
  • other materials that can be deformed by temperature may be used, and the invention is not limited thereto.
  • the above-mentioned plate shell 14b can be made of various materials. In order to make it have better thermal conductivity, a metal such as copper or an alloy such as an aluminum alloy can be used.
  • the present invention further provides a battery system, the system comprising at least one battery pack, each battery pack including at least one battery, the battery system further comprising the above battery liquid cooling device, wherein the battery liquid cooling device The liquid cold plate is placed in contact with each battery.
  • the battery system further includes a cooling protection system, as shown in FIG. 6, the cooling protection system includes: a controller 3c, a water pump 2c, and a water-cooling line 1c, wherein:
  • the water-cooling line 1c is connected to both the inlet and outlet end of the water pump 2c and the evaporator 4c on the vehicle to which the power battery system belongs, and the water pump 2c, the evaporator 4c, and the water-cooling line 1c are formed. a cooling circuit for the circulation of the water supply;
  • the controller 3c is connected to both the control end 21c of the water pump 2c and the battery management system 5c of the power battery system, and the controller 3c is configured to control the temperature according to the temperature collected by the battery management system 5c. The operation of the water pump 2c.
  • the battery management system 5c which is a BMS system, is used as an integrated circuit for collecting voltage, current, temperature and other parameters of the battery pack to monitor the status of the battery pack.
  • the water pump 2c provides power for the water circulation in the water-cooled line 1c, and when the water is delivered into the evaporator 4c, the heat is released to the outside of the vehicle by evaporation of the evaporator 4c, and further When water is output from the evaporator 4c, the water temperature is low, so that the battery pack can be cooled by the cooled water. Since the battery management system 5c and the evaporator 4c to which the water-cooling line 1c is connected are all devices on the existing vehicle, only the evaporator 4c on the vehicle is connected to the water-cooling line 1c, and a cooling circuit is formed together with the water pump 2c.
  • the controller 3c is connected to the battery management system 5c on the vehicle, and directly controls the temperature collected by the battery management system 5c. Therefore, in this embodiment, there is no additional vehicle water tank, refrigeration device, etc., compared with the conventional liquid cooling method. Therefore, the additional weight is small, which is beneficial to increase the energy density of the power battery system.
  • the cooling protection system provided in this embodiment may further include a flow controller 6c; the flow controller 6c is connected to any one of the water pump 2c and the evaporator 4c through its inlet and outlet ends.
  • the flow rate controller 6c, the water pump 2c, the evaporator 4c, and the water-cooling line 1c form a cooling circuit for the water supply circulation flow; the controller 3c and the flow rate control
  • the control terminal 61c of the device 6c is connected, and the controller 3c is further configured to control the flow rate of the flow controller 6c according to the temperature collected by the battery management system 5c.
  • a flow controller 6c is provided in the above-described cooling circuit, and the flow rate is controlled by the controller 3c. For example, when the surface temperature of the battery pack is high, the temperature drop is too slow during the cooling process by the cooling circuit, so that the surface temperature of the battery pack can be lowered by increasing the flow rate, thereby making the temperature adjustment more flexible. .
  • the cooling protection system may further include two three-way solenoid valves 7c, wherein one of the three-way solenoid valves 7c is connected to the first inlet and outlet end 71c and the second inlet and outlet end 72c of the three-way solenoid valve 7c to On the water-cooling line 1c on one side between the water pump 2c and the evaporator 4c, the other three-way solenoid valve 7c passes through the first inlet and outlet end 71c of the other three-way solenoid valve 7c and the second inlet and outlet water
  • the end 72c is connected to the water-cooling line 1c on the other side between the water pump 2c and the evaporator 4c, and the third inlet and outlet end 73c of the two three-way solenoid valves 7c are in communication; two three-way solenoid valves a first inlet and outlet end 71c of 7c, a second inlet and outlet end 72c of the two three-way solenoid valves 7c,
  • the first inlet and outlet end 71c of each three-way solenoid valve 7c is communicated with the third inlet and outlet water end 73c, and the temperature collected in the battery management system 5c is greater than the first
  • the maximum value of the temperature range is preset, the first inlet and outlet end 71c of each three-way solenoid valve 7c and the second inlet and outlet water end 72c are communicated.
  • the so-called three-way solenoid valve 7c actually has three inlet and outlet water ends: a first inlet and outlet end 71c, a second inlet and outlet end 72c, and a third inlet and outlet end 73c. Since there is no evaporator 4c in the heat preservation circuit, the water in the pipeline is not cooled, but the battery pack is insulated.
  • the cooling circuit is turned on, so that the cooling circuit can be used to cool down at this time.
  • the heat insulation circuit is turned on, so that the heat insulation circuit can be used for heat preservation at this time.
  • the first preset temperature range is set to a normal operating temperature range of the battery pack, and within the normal operating temperature range, the controller 3c knows that the current battery pack is in a normal working state according to the temperature collected by the battery management system 5c.
  • the first inlet and outlet port 71c and the third inlet and outlet port 73c of the three-way solenoid valve 7c are controlled to communicate with each other through the control end 74c of each three-way battery valve.
  • the heat insulation circuit is turned on, and then the heat insulation circuit is used to face the battery pack. Keep warm.
  • the so-called heat preservation process is actually when the battery pack temperature is slightly higher than the water temperature in the circuit, the water temperature in the circuit lowers the battery pack temperature.
  • the controller 3c controls the three-way battery valve through the control end 74c of each three-way solenoid valve 7c.
  • the first inlet and outlet end 71c communicates with the second inlet and outlet end 72c.
  • the cooling water passage is turned on, and the water is cooled by the evaporator 4c in the circuit to further cool the battery pack.
  • Embodiment 2 in which a flow controller 6c is added, specifically: The flow controller 6c is connected through its inlet and outlet ends to the water-cooling line 1c between the water pump 2c and any one of the three three-way solenoid valves 7c; the flow controller 6c, two three The first inlet and outlet end 71c of the solenoid valve 7c, the second inlet and outlet end 72c of the two three-way solenoid valves 7c, the water pump 2c, the evaporator 4c, and the water-cooling line 1c form a cooling of the water supply circulation flow.
  • a flow controller 6c a first inlet and outlet end 71c of the two three-way solenoid valves 7c, a third inlet and outlet end 73c of the two three-way solenoid valves 7c, the water pump 2c, and the water-cooling line 1c Forming a heat preservation circuit for the water supply circulation flow;
  • the controller 3c is connected to the control end 61c of the flow controller 6c, and the controller 3c is further configured to control the flow rate control according to the temperature collected by the battery management system 5c The amount of traffic of the device 6c.
  • the flow controller 6c since the flow controller 6c is disposed on the water-cooling line 1c between the water pump 2c and any one of the two three-way solenoid valves 7c, the flow controller 6c participates in both the cooling circuit and the participation.
  • the insulation circuit allows the flow to be controlled not only during the cooling process but also during the holding process.
  • the cooling protection system may further include an external joint switch 8c connected to the water pump 2c and the two tees a water-cooling line 1c between any one of the three-way solenoid valves 7c of the solenoid valve 7c, and the external joint switch 8c is adapted to be connected to an off-board external circulation system 9c; wherein the outer circulation system 9c includes refrigeration a device or a heating device, the outer circulation system 9c further comprising a water tank connected to the refrigeration device or the heating device, and an inlet pipe and an outlet pipe connecting the water tank and the external joint switch 8c; the controller 3c
  • the first inlet and outlet end 71c and the second inlet and outlet end 72c of each three-way solenoid valve 7c are connected to each other when the temperature collected by the battery management system 5c exceeds a preset second preset temperature range. And opening the external joint switch 8c; wherein, the maximum value of the first prese
  • the maximum value of the first preset temperature range is smaller than the maximum value of the second preset temperature range, and the minimum value of the first preset temperature range is greater than the second preset temperature range.
  • the minimum value means that the first preset temperature range falls within the second temperature range.
  • the outer circulation system 9c includes a refrigerating device or a heating device
  • the outer The circulation system 9c further includes a water tank connected to the refrigeration device or the heating device, and an inlet pipe and an outlet pipe connecting the water tank and the external joint switch 8c, so the water pump 2c, the external joint switch 8c, the water inlet pipe of the water tank, The water tank, the refrigeration unit or the heating unit, the water outlet pipe of the water tank, and the water-cooling line 1c form an external heat management circuit.
  • the controller 3c controls the external joint switch 8c to open, and the first inlet and outlet end 71c of each three-way solenoid valve 7c communicates with the second inlet and outlet end 72c, using the outside
  • the refrigeration unit or the heating unit in the circulation system 9c cools or heats the battery pack.
  • the external joint switch 8c when the temperature is higher than the maximum value of the second preset range, the vehicle is stopped, the external joint switch 8c is artificially connected to the outer circulation system 9c, and then the refrigeration unit in the outer circulation system 9c is used to cool the battery pack.
  • the external joint switch 8c when the temperature is lower than the minimum value of the second predetermined range, the vehicle is stopped, the external joint switch 8c is artificially connected to the outer circulation system 9c, and then the heating device in the outer circulation system 9c is used to heat the battery pack.
  • the external circulation system 9c is a non-vehicle device, it can be installed at a certain station, so that the additional weight of the battery system is not increased, and the energy density of the battery system is not lowered.
  • the temperature of the battery pack is less than the minimum value of the first preset temperature range and greater than or equal to the minimum value of the second preset temperature range, at this time, The temperature of the battery pack is lower than the normal operating temperature range, but it is greater than or equal to the minimum value of the second dangerous temperature range.
  • the heat generated by the battery pack itself can be used to increase the surface temperature.
  • the water pump 2c can be controlled to stop. It should be understood that when the water pump 2c is stopped, no matter which circuit is inoperative, it does not work.
  • the present embodiment does not have an additional device such as a vehicle tank or a refrigerating device with respect to the conventional liquid cooling method. Therefore, the additional weight is small, which is advantageous for improving the energy density of the power battery system.
  • the cooling protection system may further include a power source 22c connected between the control terminal 21c of the water pump 2c and the controller 3c.
  • the power supply 22c is used to supply power to the controller 3c and the water pump 2c to ensure normal operation of the controller 3c and the power source 22c.
  • the present invention also provides an electric vehicle including an evaporator 4c and a power battery system.
  • the present invention provides a battery liquid cooling device and a battery system.
  • the battery liquid cooling device includes a liquid cooling plate, and the liquid cooling plate is provided with at least one through hole, and the at least one through hole and the liquid cooling plate are cooled.
  • the liquid flow path is in communication and the at least one through hole is sealed by a hot melt material adapted to melt after thermal de-control of the battery corresponding to the sealed through hole.
  • the battery liquid cooling device functions as a normal cooling function, and when the battery is out of control, the battery liquid cooling device functions as a fire extinguishing device.
  • the structure of the present invention is very simple, a through hole is formed in the liquid cooling plate, and the through hole is sealed with a hot melt material, and no new parts are added, so that no weight is increased, thereby ensuring that the energy density of the battery system is not lowered.
  • the battery liquid cooling device provided by the invention completely autonomously operates, does not need to be considered as intervention, saves manpower, and can ensure the safety in the process of using the battery, and has excellent industrial application prospect.

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Automation & Control Theory (AREA)
  • Secondary Cells (AREA)

Abstract

La présente invention porte sur un dispositif de refroidissement de liquide de batteries et sur un système de batteries. Le dispositif de refroidissement de liquide de batteries comprend une plaque de refroidissement de liquide. Un ou plusieurs trous traversants sont agencés sur la plaque de refroidissement de liquide. Le ou les trous traversants sont en communication avec un canal d'écoulement de liquide de refroidissement à l'intérieur de la plaque de refroidissement de liquide et scellés par matériau thermofusible. Le matériau thermofusible fond lorsqu'une batterie correspondant à un des trous traversants ainsi scellés subit un emballement thermique. Le dispositif de refroidissement de liquide de batteries assure une fonction normale de refroidissement lorsqu'une batterie fonctionne normalement, et sert de dispositif d'extinction de feu lorsque la batterie subit un emballement thermique. En agençant le ou les trous traversants sur la plaque de refroidissement de liquide et en scellant les trous traversants avec le matériau thermofusible, le dispositif de refroidissement de liquide de batteries selon la présente invention a une structure très simple parce qu'aucun composant additionnel ni aucun poids supplémentaire ne sont ajoutés à la structure, assurant ainsi l'absence de réduction de la densité d'énergie d'un système de batteries. Le dispositif de refroidissement de liquide de batteries selon la présente invention peut fonctionner de manière autonome sans intervention manuelle, nécessitant ainsi moins de main d'œuvre, et assurant la sécurité d'utilisation d'une batterie.
PCT/CN2017/109408 2017-01-26 2017-11-03 Dispositif de refroidissement de liquide de batteries et système de batteries WO2018137374A1 (fr)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
CN201710061597.4A CN106602175A (zh) 2017-01-26 2017-01-26 电池液冷装置及电池系统
CN201710061580.9 2017-01-26
CN201710061511.8 2017-01-26
CN201710061597.4 2017-01-26
CN201710061511.8A CN106848465B (zh) 2017-01-26 2017-01-26 动力电池系统的冷却保护系统、动力电池系统和电动汽车
CN201710061580.9A CN106654417B (zh) 2017-01-26 2017-01-26 电池液冷装置和电池系统

Publications (1)

Publication Number Publication Date
WO2018137374A1 true WO2018137374A1 (fr) 2018-08-02

Family

ID=62978057

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2017/109408 WO2018137374A1 (fr) 2017-01-26 2017-11-03 Dispositif de refroidissement de liquide de batteries et système de batteries

Country Status (1)

Country Link
WO (1) WO2018137374A1 (fr)

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109037854A (zh) * 2018-08-09 2018-12-18 江苏卡耐新能源有限公司 一种液冷板、动力电池包结构及装配方法
CN109599639A (zh) * 2018-11-02 2019-04-09 南京林业大学 一种车用动力电池包的液冷热管理装置
CN110048186A (zh) * 2019-03-29 2019-07-23 江西恒动新能源有限公司 一种电池包液冷的结构及方法
CN110061325A (zh) * 2019-04-23 2019-07-26 江苏大学 一种基于螺旋式微通道液冷管的动力电池热管理系统
CN110336094A (zh) * 2019-06-15 2019-10-15 浙江征程新能源科技有限公司 一种电池液冷板及其制备方法
CN112103416A (zh) * 2019-06-17 2020-12-18 上汽通用汽车有限公司 一种电池以及一种安全电池系统
EP3761430A1 (fr) * 2019-07-05 2021-01-06 Fogmaker International AB Agencement de lutte contre l'incendie
CN113710031A (zh) * 2021-08-30 2021-11-26 无锡格林沃科技有限公司 一种主板控制箱外体装置及其制备方法
CN114464919A (zh) * 2022-02-10 2022-05-10 东风商用车有限公司 一种动力电池系统温控调试装置
CN114597519A (zh) * 2022-03-21 2022-06-07 华东交通大学 一种动力电池包及其热管理系统
CN114824552A (zh) * 2022-03-11 2022-07-29 安徽工程大学 一种电芯冷却装置及应用其的动力电池冷却系统
CN114902478A (zh) * 2019-12-13 2022-08-12 雷诺股份公司 具有冷却回路的电池包
CN115347301A (zh) * 2021-05-14 2022-11-15 荣盛盟固利新能源科技有限公司 利用冷却液灭火的电池包
CN117134025A (zh) * 2023-08-29 2023-11-28 广东派沃新能源科技有限公司 一种储能液冷设备pack流量均匀分配方法及装置
EP4040573A4 (fr) * 2020-08-24 2024-03-20 Lg Energy Solution Ltd Module de batterie et bloc-batterie le comprenant

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105789729A (zh) * 2015-01-09 2016-07-20 通用汽车环球科技运作有限责任公司 使用被动冷却防止电池系统内的电池单元间热传播
CN106602175A (zh) * 2017-01-26 2017-04-26 合肥国轩高科动力能源有限公司 电池液冷装置及电池系统
CN106654417A (zh) * 2017-01-26 2017-05-10 合肥国轩高科动力能源有限公司 电池液冷装置和电池系统
CN106848465A (zh) * 2017-01-26 2017-06-13 合肥国轩高科动力能源有限公司 动力电池系统的冷却保护系统、动力电池系统和电动汽车

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105789729A (zh) * 2015-01-09 2016-07-20 通用汽车环球科技运作有限责任公司 使用被动冷却防止电池系统内的电池单元间热传播
CN106602175A (zh) * 2017-01-26 2017-04-26 合肥国轩高科动力能源有限公司 电池液冷装置及电池系统
CN106654417A (zh) * 2017-01-26 2017-05-10 合肥国轩高科动力能源有限公司 电池液冷装置和电池系统
CN106848465A (zh) * 2017-01-26 2017-06-13 合肥国轩高科动力能源有限公司 动力电池系统的冷却保护系统、动力电池系统和电动汽车

Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109037854A (zh) * 2018-08-09 2018-12-18 江苏卡耐新能源有限公司 一种液冷板、动力电池包结构及装配方法
CN109599639A (zh) * 2018-11-02 2019-04-09 南京林业大学 一种车用动力电池包的液冷热管理装置
CN110048186A (zh) * 2019-03-29 2019-07-23 江西恒动新能源有限公司 一种电池包液冷的结构及方法
CN110061325B (zh) * 2019-04-23 2021-09-10 江苏大学 一种基于螺旋式微通道液冷管的动力电池热管理系统
CN110061325A (zh) * 2019-04-23 2019-07-26 江苏大学 一种基于螺旋式微通道液冷管的动力电池热管理系统
CN110336094A (zh) * 2019-06-15 2019-10-15 浙江征程新能源科技有限公司 一种电池液冷板及其制备方法
CN110336094B (zh) * 2019-06-15 2024-03-19 浙江征程新能源科技有限公司 一种电池液冷板及其制备方法
CN112103416A (zh) * 2019-06-17 2020-12-18 上汽通用汽车有限公司 一种电池以及一种安全电池系统
CN114051668A (zh) * 2019-07-05 2022-02-15 A.斯文森国际公司 抑火装置
EP3761430A1 (fr) * 2019-07-05 2021-01-06 Fogmaker International AB Agencement de lutte contre l'incendie
WO2021004860A1 (fr) * 2019-07-05 2021-01-14 Fogmaker International Ab Agencement d'extinction d'incendie
CN114902478A (zh) * 2019-12-13 2022-08-12 雷诺股份公司 具有冷却回路的电池包
EP4040573A4 (fr) * 2020-08-24 2024-03-20 Lg Energy Solution Ltd Module de batterie et bloc-batterie le comprenant
CN115347301A (zh) * 2021-05-14 2022-11-15 荣盛盟固利新能源科技有限公司 利用冷却液灭火的电池包
CN113710031A (zh) * 2021-08-30 2021-11-26 无锡格林沃科技有限公司 一种主板控制箱外体装置及其制备方法
CN113710031B (zh) * 2021-08-30 2023-08-11 无锡格林沃科技有限公司 一种主板控制箱外体装置及其制备方法
CN114464919A (zh) * 2022-02-10 2022-05-10 东风商用车有限公司 一种动力电池系统温控调试装置
CN114824552A (zh) * 2022-03-11 2022-07-29 安徽工程大学 一种电芯冷却装置及应用其的动力电池冷却系统
CN114597519A (zh) * 2022-03-21 2022-06-07 华东交通大学 一种动力电池包及其热管理系统
CN114597519B (zh) * 2022-03-21 2023-08-04 华东交通大学 一种动力电池包及其热管理系统
CN117134025B (zh) * 2023-08-29 2024-03-19 广东派沃新能源科技有限公司 一种储能液冷设备pack流量均匀分配方法及装置
CN117134025A (zh) * 2023-08-29 2023-11-28 广东派沃新能源科技有限公司 一种储能液冷设备pack流量均匀分配方法及装置

Similar Documents

Publication Publication Date Title
WO2018137374A1 (fr) Dispositif de refroidissement de liquide de batteries et système de batteries
US11479079B2 (en) Circuit for the thermal management of a hybrid or electric vehicle
CN108550950B (zh) 一种电池包超冷热管理系统及方法
JP2022538122A (ja) 火災抑制装置
CN112721736A (zh) 一种具有冷却和灭火功能的一体式动力电池热管理系统
CN106654417A (zh) 电池液冷装置和电池系统
CN108470959A (zh) 一种动力电池包热管理总成
CN112618997A (zh) 电池储能系统的液冷消防系统及消防方法
CN114497802A (zh) 浸没式液冷电池储能系统及其工作方法
CN112151710A (zh) 电池包热安全结构、电池包热管理系统及车辆
CN113889698B (zh) 储能机柜及其消防系统
CN111873854B (zh) 一种电动汽车热管理系统
CN110828937A (zh) 用于动力蓄电池装置的温控系统及方法
CN107270569A (zh) 制冷系统及包括其的饮水机
ES2670358T3 (es) Procedimiento para evitar una combustión seca en calentadores eléctricos continuos
TWI657640B (zh) 充電樁以及車輛
CN113725504A (zh) 一种应用于储能电池包的直冷系统及方法
CN218101441U (zh) 用于电池包的防热失控组件、电池包和车辆
CN113422125B (zh) 一种电池保护系统和车辆
CN212257488U (zh) 一种热管理装置及新能源汽车
CN114744324A (zh) 一种防热失控电池系统及控制方法
CN113206318A (zh) 一种阻止电池包热蔓延的冷却系统和方法
CN219778997U (zh) 储能系统
CN220290897U (zh) 一种储能电池温度控制系统
CN206973921U (zh) 制冷系统及包括其的饮水机

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 17894340

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 17894340

Country of ref document: EP

Kind code of ref document: A1

32PN Ep: public notification in the ep bulletin as address of the adressee cannot be established

Free format text: NOTING OF LOSS OF RIGHTS PURSUANT TO RULE 112(1) EPC (EPO FORM 1205A DATED 25/05/2020)

122 Ep: pct application non-entry in european phase

Ref document number: 17894340

Country of ref document: EP

Kind code of ref document: A1