WO2024026826A1 - 可预防电池包热失控蔓延的电池包冷却系统及其工作方法 - Google Patents

可预防电池包热失控蔓延的电池包冷却系统及其工作方法 Download PDF

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Publication number
WO2024026826A1
WO2024026826A1 PCT/CN2022/110525 CN2022110525W WO2024026826A1 WO 2024026826 A1 WO2024026826 A1 WO 2024026826A1 CN 2022110525 W CN2022110525 W CN 2022110525W WO 2024026826 A1 WO2024026826 A1 WO 2024026826A1
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WO
WIPO (PCT)
Prior art keywords
battery pack
thermal runaway
spread
cooling fluid
cooling system
Prior art date
Application number
PCT/CN2022/110525
Other languages
English (en)
French (fr)
Inventor
王瑾
黄崇洋
武东
罗英哲
朱建
Original Assignee
上海亚大汽车塑料制品有限公司
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
Application filed by 上海亚大汽车塑料制品有限公司 filed Critical 上海亚大汽车塑料制品有限公司
Priority to EP22871147.9A priority Critical patent/EP4350837A1/en
Priority to CA3225239A priority patent/CA3225239A1/en
Publication of WO2024026826A1 publication Critical patent/WO2024026826A1/zh

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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
    • 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
    • H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
    • 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
    • H01M10/488—Cells or batteries combined with indicating means for external visualization of the condition, e.g. by change of colour or of light density
    • 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
    • H01M10/637—Control systems characterised by the use of reversible temperature-sensitive devices, e.g. NTC, PTC or bimetal devices; characterised by control of the internal current flowing through the cells, e.g. by switching
    • 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
    • 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 technical field of battery pack protection devices, and in particular to a battery pack cooling system and a working method thereof that can prevent the spread of thermal runaway in a battery pack, and are used to prevent the spread of thermal runaway in a battery pack.
  • the main problem with the safety performance of new energy vehicles is the spontaneous combustion and explosion of battery packs.
  • the spontaneous combustion or even explosion of battery packs is mainly caused by the spread of thermal runaway of the battery pack in the battery pack.
  • the causes of thermal runaway in the battery pack include overheating, overcharging, internal short circuit, collision and other key factors. Once the battery pack experiences thermal runaway, it will cause the battery to spontaneously ignite in severe cases. In other words, when the thermal runaway of the battery reaches a certain temperature, an uncontrollable state will occur, such as causing the temperature inside the battery to rise linearly and causing a combustion explosion.
  • new energy vehicle power battery packs basically use two cooling methods: natural air cooling and liquid cooling.
  • the liquid cooling method has the advantages of higher cooling rate and stronger safety performance, and is favored by most manufacturers.
  • Liquid cooling technology is mainly based on the thermal management liquid cooling system of new energy vehicles, and is equipped with components such as electronic water pumps, expansion kettles, coolant circulation pipes, coolant, heat exchangers, and water-cooling plates.
  • the electronic water pump provides flow power.
  • the cold source is provided through the heat exchanger, and the coolant is filled and compensated through the expansion kettle, so that the coolant continues to flow in the coolant circulation pipe, thereby providing a continuous cold source for the water-cooling plate to cool down the battery pack in the battery pack.
  • the electronic water pump is supplied with electric energy from the on-board battery of the new energy vehicle, in which the water-cooling plate is placed in the battery pack and attached to the surface of the battery pack.
  • One advantage of the present invention is to provide a battery pack cooling system and its working method that can prevent the spread of thermal runaway of the battery pack.
  • the thermal runaway sensing component senses the thermal runaway of the battery pack, it controls the fluid steering valve to replace the existing technology.
  • the cooling fluid that provides cooling service is quickly sprayed on the battery pack in the battery pack, which can effectively control the spread of thermal runaway of the battery pack and provide sufficient escape time for the driver, passengers and surrounding people.
  • One advantage of the present invention is to provide a battery pack cooling system and a working method that can prevent the spread of thermal runaway of the battery pack. It only needs to add a fluid steering component and a thermal runaway sensing component on the basis of the original cooling system to achieve this. Controlling the spread of thermal runaway in battery packs has simple structure, low cost and easy modification.
  • One advantage of the present invention is to provide a battery pack cooling system and its working method that can prevent the spread of thermal runaway of the battery pack.
  • the battery pack When the battery pack is working, it provides normal cooling fluid cooling service, and only when the thermal runaway sensing component detects the occurrence of the battery pack.
  • the flow direction of the cooling fluid in the fluid steering valve will be automatically switched only when thermal runaway occurs, without affecting the normal operation of the entire vehicle.
  • One advantage of the present invention is to provide a battery pack cooling system and a working method that can prevent the spread of thermal runaway of the battery pack. By distributing the sprinkler heads at different positions of the battery pack, in the event of thermal runaway, the sprinklers at different positions are used.
  • the shower head also provides cooling spray for the battery pack, which can further improve the efficiency of controlling the spread of thermal runaway.
  • One advantage of the present invention is to provide a battery pack cooling system and a working method thereof that can prevent the spread of thermal runaway of the battery pack.
  • the area for spraying cooling fluid can be effectively increased, thereby further improving the control of the spread of thermal runaway. s efficiency.
  • One advantage of the present invention is to provide a battery pack cooling system and a working method thereof that can prevent the spread of thermal runaway of the battery pack.
  • the descending gravity of the cooling fluid can be used to divert the cooling fluid. Spray on the surface of the battery pack more quickly.
  • One advantage of the present invention is to provide a battery pack cooling system and its working method that can prevent the spread of thermal runaway in the battery pack. By setting an alarm, it can also promptly remind drivers and passengers to stay away when thermal runaway problems occur in the battery pack. Battery pack, try to reduce the personal injury to the driver, passengers and surrounding people as much as possible.
  • the present invention provides a battery pack cooling system that can prevent the spread of thermal runaway of the battery pack, and is used to prevent the spread of thermal runaway of the battery pack installed in a box on the vehicle.
  • the battery pack cooling system that prevents the spread of thermal runaway in the battery pack includes:
  • At least one cooling fluid guide assembly wherein the cooling fluid guide assembly includes a plurality of cooling fluid circulation pipes and at least one electronic water pump, wherein the electronic water pump is used to communicate with a controller of the vehicle and is configured in the cooling fluid circulation pipe;
  • At least one refrigeration component wherein the refrigeration component is connected to the cooling fluid circulation pipe to cool the battery pack located in the accommodation space;
  • At least one heat exchange member wherein the heat exchange member is connected to the cooling fluid circulation pipe;
  • At least one thermal runaway sensing component wherein the thermal runaway sensing component is used to detect whether the battery pack located in the accommodation space is in a thermal runaway state, and is used to communicate with the controller;
  • At least one fluid diversion assembly wherein the fluid diversion assembly includes at least one liquid guide channel and at least one fluid diversion valve, wherein the fluid diversion valve is configured as a multi-way solenoid valve, and the fluid diversion valve has at least two
  • the interface is used to communicate with the cooling fluid circulation pipe, and at least one interface is connected to one end of the liquid guide channel, wherein the other end of the liquid guide channel is used to detect the battery pack when the thermal runaway sensor detects
  • the box is arranged in a manner that can communicate with the accommodating space when it is in a thermal runaway state.
  • the liquid conduction channel forms at least one liquid outlet for communicating with the accommodation space.
  • At least one sprinkler head is arranged at the other end of the liquid guide channel for accommodation in the accommodation space, wherein the fine sprinkler opening of the sprinkler head is defined as the Liquid outlet.
  • the liquid conducting channel is formed of a high-temperature fusible tube body and is used to be placed horizontally on the top of the box forming the accommodation space, wherein one end of the liquid conducting channel is connected to the One of the ports of the fluid diversion valve is connected, while the other end is blocked.
  • one end of the flow guide channel is connected to the fluid steering valve, and the other end is used to connect to at least one filling space formed on the top of the box and separated from the accommodation space. flow space.
  • the battery pack cooling system that can prevent the spread of thermal runaway of the battery pack further includes an alarm, wherein the alarm is communicatively connected to the thermal runaway sensing component.
  • the present invention provides a battery pack cooling system that can prevent the spread of thermal runaway of the battery pack.
  • the battery pack cooling system that can prevent the spread of thermal runaway of the battery pack includes:
  • At least one battery pack wherein the battery pack includes a box and at least one battery pack, wherein the box forms an accommodation space, and the battery pack is accommodated in the accommodation space;
  • At least one cooling fluid guide assembly wherein the cooling fluid guide assembly includes a plurality of cooling fluid circulation pipes and at least one electronic water pump, wherein the electronic water pump is communicatively connected to the controller and is disposed on the cooling fluid circulation pipeline;
  • At least one refrigeration component wherein the refrigeration component is connected to the cooling fluid circulation pipe to cool the battery pack located in the accommodation space;
  • At least one heat exchange member wherein the heat exchange member is connected to the cooling fluid circulation pipe;
  • At least one thermal runaway sensing component wherein the thermal runaway sensing component is used to detect whether the battery pack located in the accommodation space is in a thermal runaway state, and is communicatively connected to the controller;
  • At least one fluid diversion assembly wherein the fluid diversion assembly includes at least one liquid guide channel and at least one fluid diversion valve, wherein the fluid diversion valve is configured as a multi-way solenoid valve, and the fluid diversion valve has at least two
  • the interface is used to communicate with the cooling fluid circulation pipe, and at least one interface is connected to one end of the liquid guide channel, wherein the other end of the liquid guide channel is used to detect the battery pack when the thermal runaway sensor detects
  • the box is arranged in a manner that can communicate with the accommodating space when it is in a thermal runaway state.
  • the liquid conducting channel is formed of a high-temperature fusible tube body and is placed horizontally on the top of the box forming the accommodation space, wherein one end of the liquid conducting channel is connected to the One of the ports of the fluid diversion valve is connected, while the other end is blocked.
  • the top of the box forms at least one flow-filling space separated from the accommodation space, one end of the flow guide channel is connected to the fluid steering valve, and the other end is connected to in the flow-filled space.
  • the present invention provides a vehicle, which includes a battery pack cooling system as described above that can prevent the spread of thermal runaway of the battery pack.
  • the liquid outlet is located in the accommodation space and is maintained on the top of the box.
  • Figure 1 shows a schematic diagram of a first embodiment of a battery pack cooling system according to the present invention that can prevent the spread of thermal runaway in a battery pack.
  • Figure 2 shows a schematic diagram of a second embodiment of the battery pack cooling system according to the present invention that can prevent the spread of thermal runaway of the battery pack.
  • Figure 3 shows a schematic diagram of a second embodiment of the battery pack cooling system according to the present invention that can prevent the spread of thermal runaway of the battery pack during thermal runaway.
  • FIG. 4 shows an enlarged schematic diagram of part A of the second embodiment of the battery pack cooling system according to the present invention that can prevent the spread of thermal runaway of the battery pack.
  • FIG. 5 shows a schematic diagram of a third embodiment of the battery pack cooling system according to the present invention that can prevent the spread of thermal runaway of the battery pack.
  • FIG. 6 shows an enlarged schematic diagram of part B of the third embodiment of the battery pack cooling system according to the present invention that can prevent the spread of thermal runaway of the battery pack.
  • the battery pack can prevent the spread of thermal runaway in the battery pack.
  • the pack cooling system can better prevent the spread of thermal runaway of the battery pack 920 in the battery pack, such as battery spontaneous combustion, battery explosion, and smoke caused by thermal runaway.
  • the battery pack 920 is disposed in the box 910 of the battery pack.
  • the battery pack cooling system that can prevent the spread of thermal runaway battery packs can be used to cool the battery packs in vehicles such as automobiles, and requires very little structural modification to the existing battery pack cooling system, thereby making Low production cost.
  • the battery pack cooling system that can prevent the spread of thermal runaway of the battery pack includes at least one refrigeration component 10 , at least one heat exchange component 20 and a cooling fluid guide component 30 .
  • the cooling fluid guide assembly 30 includes a plurality of cooling fluid circulation pipes 31 and at least one electronic water pump 32 .
  • the electronic water pump 32 is controllably connected to a controller 40 and is disposed on the cooling fluid circulation pipe 31 to provide power for the cooling fluid to circulate in the cooling fluid circulation pipe 31 .
  • the refrigeration element 10 and the heat exchange element 20 are heat-exchangeably connected to the cooling fluid circulation pipe 31 to continuously cool the cooling fluid in the cooling fluid circulation pipe 31 .
  • controller 40 is configured as a vehicle-mounted controller, such as a controller with a BMS system.
  • the box 910 of the existing battery pack forms an accommodation space 9101 for accommodating the battery pack 920 , wherein the refrigeration component 10 is disposed outside the battery pack 920 and located in the box 910
  • the accommodation space 9101 can be heat exchanged with the battery pack 920, thereby continuously cooling the battery pack 920 when the battery pack 920 does not undergo thermal runaway to ensure that the battery pack 920 920 works fine.
  • the refrigeration component 10 can be configured as a water-cooling plate or other common cooling element.
  • At least one cooling fluid circulation pipe 31 extends into the accommodation space 9101 to communicate with the refrigeration component 10 .
  • the cooling fluid guide assembly 30 further includes an expansion kettle 33 .
  • the expansion kettle 33 is disposed in communication with the cooling fluid circulation pipe 31 so that the lost cooling fluid can be added or compensated through the expansion kettle 33 to provide continuous cooling energy to the refrigeration component 10 .
  • the heat exchange member 20 is disposed in the cooling fluid circulation pipe 31 and is configured to exchange heat with the cooling fluid in the cooling fluid circulation pipe 31 , thereby taking away the cooling in the cooling fluid circulation pipe 31 .
  • the heat of the fluid cools the cooling fluid in the cooling fluid circulation pipe 31 .
  • the cooling fluid in the cooling fluid circulation pipe 31 can be continuously introduced into the refrigeration component 10 to cool the battery pack 920 , that is to say, the heat exchange component 20 can ensure that the The cooling fluid in the cooling fluid circulation pipe 31 is always cold fluid.
  • cooling fluid can be configured as a fluid with higher heat exchange efficiency, such as water.
  • the battery pack cooling system that can prevent the spread of thermal runaway of the battery pack also includes at least one fluid diversion component 50 and at least one thermal runaway sensing component 60 .
  • the fluid diversion assembly 50 includes at least one flow guide channel 51 and at least one fluid diversion valve 52 , wherein the fluid diversion valve 52 and the thermal runaway sensing member 60 are communicatively connected to the controller 40 .
  • the thermal runaway sensing component 60 is disposed in the box 910.
  • the thermal runaway sensing component 60 is disposed in the accommodating space 9101 to monitor the battery located in the accommodating space 9101. Whether group 920 has thermal runaway.
  • the thermal runaway sensing component 60 is configured to be selected from any one or more of a temperature sensor, a gas sensor and a flame sensor, so as to monitor the temperature in the battery pack in real time through the temperature sensor or to monitor in real time through the gas sensor. The smoke in the battery pack or whether there is an open flame in the battery pack is monitored in real time through the flame sensor.
  • the thermal runaway sensing component includes the temperature sensor, the gas sensor and the flame sensor at the same time.
  • One end of the flow guide channel 51 is connected to the fluid diversion valve 52 , wherein the fluid diversion valve 52 is provided in the cooling fluid circulation pipe 31 .
  • the other end of the flow guide channel 51 forms at least one liquid outlet 5101 that communicates with the flow guide channel 51 and the accommodation space 9101 to detect thermal runaway.
  • the fluid diversion valve 52 is controlled by the controller 40 to connect the flow guide channel 51 and the cooling fluid circulation pipe 31, the cooling fluid circulates
  • the cooling fluid in the pipe 31 can be introduced into the accommodation space 9101 through the liquid outlet 5101 . It can be understood that since the cooling fluid is introduced into the accommodation space 9101, the cooling fluid will be poured into the battery pack 920, so that the battery pack 920 can be quickly cooled, thereby Dangerous accidents caused by thermal runaway of the battery pack 920 can be avoided.
  • the fluid diversion assembly 50 and the thermal runaway sensing component 60 are only added to the original battery pack cooling system, and no independent components are added.
  • Other parallel liquid pipelines other than the battery pack cooling fluid can greatly reduce changes to the battery pack cooling system pipelines.
  • the electronic water pump 32 in a conventional cooling system is powered by a 12V lithium battery, it is difficult for a 12V lithium battery to drive the cooling fluid to quickly flow to the larger diameter liquid outlet 5101. Therefore, the The liquid outlet 5101 is set as a fine spray opening with a smaller diameter, and the other end of the guide channel 51 forms a plurality of fine spray openings connected to the guide channel 51 . In this way, the traditional electronic water pump 32 only needs to provide a lower pressure to quickly move the cooling fluid in the cooling fluid circulation pipe 31 from the fine spray opening, thereby preventing the cooling fluid circulation pipe from The fluid in 31 flows out from the liquid outlet 5101 with a delay.
  • the liquid outlet 5101 is not set as a fine spray outlet with a smaller diameter, it is difficult for the conventional electronic water pump 32 to drive the cooling fluid through the liquid outlet 5101 to directly reach the battery.
  • the surface of the group 920 can only drive the cooling fluid to slowly flow along the inner wall of the box 910 to the accommodating space 9101, and fill the accommodating space 9101 from bottom to top. In this way In the future, there will be a certain delay in the cooling and fire extinguishing effect.
  • a sprinkler head 70 is provided at the other end of the guide channel 51 , wherein the sprinkler head 70 is preferably provided in the accommodation space 9101 and located on the top of the box 910 , so that First, the cooling fluid flowing out from the shower head 70 can be sprinkled from top to bottom on the thermally runaway battery pack 920 . In this way, even if the battery pack 920 spreads out of thermal control, such as catching on fire, the open flame of the battery pack 920 can be extinguished in time.
  • the shower head 70 has a shower cavity and a plurality of fine spray openings connected to the shower cavity.
  • the flow guide channel 51 communicates with a plurality of laterally arranged sprinkler heads 70 , wherein the sprinkler heads 70 are all disposed in the accommodating space 9101 and located in the box. The top of the 910. In this way, the spraying range of the plurality of shower heads 70 can cover the entire battery pack 920 .
  • the flow guide channel 51 includes a main channel and at least two branch channels connected with the main channel, wherein the end of each direct flow channel is docked with one of the jet heads 70 .
  • the shower head 70 can also be arranged in the accommodation space 9101 and located on the side wall of the box 910 .
  • the fluid steering valve 52 can be configured as a multi-way solenoid valve, such as a three-way solenoid valve, a four-way solenoid valve or a five-way solenoid valve. At least two interfaces in the fluid diversion valve 52 are used to communicate with the cooling fluid circulation pipe 31 , while other remaining interfaces are connected to one end of the flow guide channel 51 . When there is one remaining interface, one of the flow guide channels 51 can be connected. When there are two or more remaining interfaces, two or more of the flow guide channels 51 can be connected. When two or more flow guide channels 51 are provided, the other end of each flow guide channel 51 can extend into the accommodation space 9101.
  • the flow guide channel 51 extends to the accommodation space 9101 and is placed transversely on the top of the box 910 forming the accommodation space 9101, and the The flow guide channel 51 does not form the liquid outlet 5101. That is to say, the flow guide channel 51 is not connected with the accommodation space 9101. In other words, one end of the flow guide channel 51 formed by the flow guide channel 51 is connected to the fluid diverting valve 52, and the other end is closed.
  • the flow guide channel 51 is formed of a high-temperature fusible tube body.
  • the other end of the diversion channel 51 is blocked and not connected to the accommodation space 9101. Therefore, the small power supply powered by a 12V lithium battery
  • the electronic water pump 32 can quickly fill the cooling fluid into the flow guide channel 51, and because part of the flow guide channel 51 is transversely located on the top of the box 910 forming the accommodation space 9101 , therefore, the flow guide channel 51 placed horizontally on the top of the box 910 forming the accommodation space 9101 will be thermally melted by the battery pack 920 that burns due to thermal runaway, and will then be fused with the accommodation space 9101 .
  • the spaces 9101 are connected, so that the cooling fluid pre-filled in the flow guide channel 51 can be poured onto the thermally runaway battery pack 920 in a large amount from top to bottom at one time.
  • the cooling fluid has a lower temperature through heat exchange with the heat exchange member 20, when the cooling fluid is poured from top to bottom in a thermally runaway After the battery pack 920 is installed, the temperature of the battery pack 920 can be instantly reduced, especially since a large amount of the cooling fluid is filled in the flow guide channel 51 in advance. Therefore, even if an open flame occurs in the battery pack 920 , the cooling fluid can extinguish open fire instantly and quickly cool down the battery pack 920 . In this way, the battery pack 920 will not explode due to thermal runaway.
  • the flow guide channel 51 is arranged on the top of the box 910 forming the accommodation space 9101.
  • the flow guide channel 51 Not only can the area of the watering be larger, but the amount of the cooling fluid pre-filled in the flow guide channel 5101 in the flow guide channel 51 can also be larger, so that the subsequent watering can be performed on the thermally runaway battery pack.
  • the amount of cooling fluid 920 can be greater.
  • the top of the box 910 forms at least one flow-filled space 9102 separated from the accommodation space 9101 .
  • One end of the flow guide channel 51 is connected to the fluid steering valve 52 , and the other end is connected to the flow filling space 9102 . That is to say, the top of the box 910 forms a separation layer 930 between the flow space 9102 and the accommodation space 9101, wherein the thickness of the separation layer 930 is set to be suitable at a predetermined temperature. is melted, and then forms a gap connected to the accommodation space 9101 and the flow-filling space 9102 after melting.
  • the separation layer 930 will be thermally melted by the battery pack 920 that burns due to thermal runaway, so that the cooling fluid can The thermally runaway battery pack 920 is quickly extinguished and the battery pack 920 is quickly cooled.
  • the battery pack cooling system that can prevent the spread of thermal runaway of the battery pack further includes an alarm, wherein the alarm is communicatively connected to the thermal runaway sensing component 60 , wherein when the thermal runaway sensing component 60 detects When the battery pack 920 experiences thermal runaway, the alarm will generate a corresponding alarm prompt.
  • the alarm is preferably implemented as a sound alarm and/or a light alarm, such as a buzzer, a warning light, etc., so as to issue an alarm by sound, or by light, or by a combination of sound and light at the same time.
  • the present invention also provides a working method of a battery pack cooling system that can prevent the spread of thermal runaway battery packs, wherein the working method of the battery pack cooling system that can prevent the spread of thermal runaway battery packs includes the following: step:
  • step S1002 includes the steps:
  • the present invention also discloses a vehicle including the above-mentioned battery pack cooling system that can prevent the spread of thermal runaway of the battery pack.

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Abstract

本申请公开可预防电池包热失控蔓延的电池包冷却系统及其工作方法，可预防电池包热失控蔓延的电池包冷却系统包括至少一冷却流体导流组件、至少一制冷件、至少一热交换件、至少一热失控感知件和至少一流体转向组件，冷却流体导流组件包括若干冷却流体循环管道和至少一电子水泵，电子水泵被用以通信连接于车辆的一控制器，并被设置于冷却流体循环管道，制冷件被连通于冷却流体循环管道，热交换件被连通于冷却流体循环管道，热失控感知件用以通信连接于控制器，流体转向组件包括至少一导流通道和至少一流体转向阀，流体转向阀被设置为多通电磁阀，且流体转向阀具有的至少两个接口被用于连通冷却流体循环管道，而至少一个接口被连通于导流通道的一端。

Description

可预防电池包热失控蔓延的电池包冷却系统及其工作方法 技术领域
本发明涉及电池包防护装置技术领域，尤其涉及一种可预防电池包热失控蔓延的电池包冷却系统及其工作方法，用于预防电池包热失控的蔓延。
背景技术
随着对环保的重视，新能源车的销量也同步快速增长。新能源车作为一种不是非常成熟的车种，其行驶安全受到人们很大的关注。此外，最近一段时期，各种途径新闻报道的电池自燃、爆炸等现象，使人们对于新能源车的安全性能存在一定程度的质疑。
因此，新能源车电池包的安全性是目前亟待解决主要问题之一。新能源车的安全性能的主要问题就是电池包的自燃和爆炸。基于目前的技术水平，电池包发生自燃甚至爆炸的现象，主要是由电池包内电池组热失控的蔓延引起的。根据动力电池的内部结构来说，导致电池组出现热失控的原因有过热、过充、内短路、碰撞等几个关键因素。一旦电池组出现热失控，严重时将会导致电池出现自燃。也就是说，当电池的热失控到达一定的温度之后，就会出现不可控的状态，比如导致电池内部的温度直线上升，发生燃烧爆炸。
不管是电池因热失控引起的自燃还是爆炸，都极大地威胁着驾乘人员以及周边人员和设施的安全。因此，在无法解决电池热失控问题的情况下，如何预防并控制电池包热失控蔓延，是诸多技术人员需要攻克的问题。
目前，新能源车动力电池包基本上采用自然风冷和液体冷却两种降温方式，其中液体冷却方式具有降温速率更高、安全性能更强等优点，受到大多数厂商的青睐。液体冷却技术主要是基于新能源车的热管理液冷冷却系统，并设置电子水泵、膨胀水壶、冷却液循环管道、冷却液、换热器和水冷板等元器件，通过电子水泵提供流转动力，通过换热器提供冷源，并通过膨胀水壶加注和补偿冷却液，使冷却液在冷却液循环管道内持续流动，从而给水冷板提供持续的冷源，以给电池包内的电池组降温。电子水泵由新能源车的车载电池提供电能供应，其中水冷板被设置在电池包内，并贴附于电池组的表面。
不管是自然风冷还是液体冷却，仅仅是在电池包工作时提供一定限度的降温服务，而一旦电池包出现热失控问题，这两种冷却方式所发挥的作用都可以几乎忽略不计，也就造成了目前电池经常出现自燃和爆炸的问题。
针对电池包出现热失控的情况下，现有技术中，也存在一些通过液体喷淋的方式对电池包进行快速降温的方式。但是这种方式，由于增加了独立于电池包冷却液以外的新的液体管道和组件，从而使现有的电池包的整体结构需要做极大地改变。而汽车制造商在一开始时，就已经预定了电池包以及电池包中各个管路的位置，如果电池包新增的管路较多，则电池包的结构将发生较大的改变，则势必会导致整个车辆结构设计的改变。这样一来势必会导致制作成本的急剧增加。
发明内容
本发明的一个优势在于提供一种可预防电池包热失控蔓延的电池包冷却系统及其工作方法，在热失控感知件感应到电池组的热失控时，通过控制流体转向阀，将现有技术中提供降温服务的冷却流体快速地喷淋在电池包内的电池组上，从而能够有效控制电池组热失控的蔓延，给驾乘人员以及周边人员提供充足的逃生时间。
本发明的一个优势在于提供一种可预防电池包热失控蔓延的电池包冷却系统及其工作方法，其中仅需要在原有冷却系统的基础上，添加流体转向组件、热失控感知件，便可以实现对电池包热失控蔓延的控制，结构简单、成本低，改装方便。
本发明的一个优势在于提供一种可预防电池包热失控蔓延的电池包冷却系统及其工作方法，在电池包工作时提供正常的冷却流体降温服务，只有在热失控感知件监测到电池包出现热失控现象时才会自动切换转接所述流体转向阀内的冷却流体的流向，不影响整车平常的正常工作。
本发明的一个优势在于提供一种可预防电池包热失控蔓延的电池包冷却系统及其工作方法，通过将喷淋头分布在电池包的不同位置，在热失控时由不同位置的所述喷淋头同时为电池组提供降温喷淋，能够进一步提高控制热失控蔓延的效率。
本发明的一个优势在于提供一种可预防电池包热失控蔓延的电池包冷却系统及其工作方法，通过设置多个喷淋口，能够有效提高喷洒冷却流体的面积，从而进一步提高控制热失控蔓延的效率。
本发明的一个优势在于提供一种可预防电池包热失控蔓延的电池包冷却系统及其工作方法，通过将部分喷淋头设置在电池组的正上方，能够利用冷却流体的下降重力将冷却流体更加快速的喷洒在电池组的表面。
本发明的一个优势在于提供一种可预防电池包热失控蔓延的电池包冷却系统及其工作方法，通过设置警报器，还能够在电池包出现热失控问题时及时提醒驾乘人员和周 边人员远离电池包，尽最大可能的降低对驾乘人员和周边人员的人身伤害。
为达到本发明以上至少一个优势，本发明提供一可预防电池包热失控蔓延的电池包冷却系统，用于预防车辆上安装于一箱体的容置空间中电池组热失控蔓延，所述可预防电池包热失控蔓延的电池包冷却系统包括：
至少一冷却流体导流组件，其中所述冷却流体导流组件包括若干冷却流体循环管道和至少一电子水泵，其中所述电子水泵被用以通信连接于所述车辆的一控制器，并被设置于所述冷却流体循环管道；
至少一制冷件，其中所述制冷件被连通于所述冷却流体循环管道，以冷却位于所述容置空间中的所述电池组；
至少一热交换件，其中所述热交换件被连通于所述冷却流体循环管道；
至少一热失控感知件，其中所述热失控感知件用以检测位于所述容置空间中的所述电池组是否处于热失控状态，且用以通信连接于所述控制器；
至少一流体转向组件，其中所述流体转向组件包括至少一导液通道和至少一流体转向阀，其中所述流体转向阀被设置为多通电磁阀，且所述流体转向阀具有的至少两个接口被用于连通所述冷却流体循环管道，而至少一个接口被连通于所述导液通道的一端，其中所述导液通道的另一端以在所述热失控感知件检测到所述电池组是否处于热失控状态时能够与所述容置空间连通的方式设置在所述箱体。
根据本发明一实施例，所述导液通道形成至少一出液口，用于连通所述容置空间。
根据本发明一实施例，所述导液通道的另一端部布置至少一喷淋头，用于容纳在所述容置空间，其中所述喷淋头具有的细密喷淋口被定义为所述出液口。
根据本发明一实施例，所述导液通道由高温可熔的管体形成，用于横置在形成所述容置空间的所述箱体顶部，其中所述导液通道的一端与所述流体转向阀的一个所述接口连通，而另一端被封堵。
根据本发明一实施例，所述导流通道的一端被连通于所述流体转向阀，而另一端用于连通于所述箱体的顶部形成的与所述容置空间隔开的至少一充流空间。
根据本发明一实施例，所述可预防电池包热失控蔓延的电池包冷却系统还包括一警报器，其中所述警报器被可通信地连接于所述热失控感知件。
为达到以上至少一个优势，根据本发明的另一个方面，本发明提供一可预防电池包热失控蔓延的电池包冷却系统，所述可预防电池包热失控蔓延的电池包冷却系统包括：
至少一电池包，其中所述电池包包括一箱体和至少一电池组，其中所述箱体形成一 容置空间，其中所述电池组被容置于所述容置空间；
一控制器；
至少一冷却流体导流组件，其中所述冷却流体导流组件包括若干冷却流体循环管道和至少一电子水泵，其中所述电子水泵被通信连接于所述控制器，并被设置于所述冷却流体循环管道；
至少一制冷件，其中所述制冷件被连通于所述冷却流体循环管道，以冷却位于所述容置空间中的所述电池组；
至少一热交换件，其中所述热交换件被连通于所述冷却流体循环管道；
至少一热失控感知件，其中所述热失控感知件用以检测位于所述容置空间中的所述电池组是否处于热失控状态，且通信连接于所述控制器；
至少一流体转向组件，其中所述流体转向组件包括至少一导液通道和至少一流体转向阀，其中所述流体转向阀被设置为多通电磁阀，且所述流体转向阀具有的至少两个接口被用于连通所述冷却流体循环管道，而至少一个接口被连通于所述导液通道的一端，其中所述导液通道的另一端以在所述热失控感知件检测到所述电池组是否处于热失控状态时能够与所述容置空间连通的方式设置在所述箱体。
根据本发明一实施例，所述导液通道由高温可熔的管体形成，并被横置在形成所述容置空间的所述箱体顶部，其中所述导液通道的一端与所述流体转向阀的一个所述接口连通，而另一端被封堵。
根据本发明一实施例，所述箱体的顶部形成的与所述容置空间隔开的至少一充流空间，所述导流通道的一端被连通于所述流体转向阀，而另一端连通于所述充流空间。
为达到以上至少一个优势，本发明提供一车辆，所述车辆包括如上任一所述可预防电池包热失控蔓延的电池包冷却系统。
根据本发明一实施例，所述出液口位于所述容置空间，且保持在所述箱体的顶部。
附图说明
图1示出了本发明所述可预防电池包热失控蔓延的电池包冷却系统的第一个实施例的示意图。
图2示出了本发明所述可预防电池包热失控蔓延的电池包冷却系统的第二个实施例的示意图。
图3示出了本发明所述可预防电池包热失控蔓延的电池包冷却系统的第二个实施例 在热失控时的示意图。
图4示出了本发明所述可预防电池包热失控蔓延的电池包冷却系统的第二个实施例的A部分的放大示意图。
图5示出了本发明所述可预防电池包热失控蔓延的电池包冷却系统的第三个实施例的示意图。
图6示出了本发明所述可预防电池包热失控蔓延的电池包冷却系统的第三个实施例B部分的放大示意图。
具体实施方式
以下描述用于揭露本发明以使本领域技术人员能够实现本发明。以下描述中的优选实施例只作为举例，本领域技术人员可以想到其他显而易见的变型。在以下描述中界定的本发明的基本原理可以应用于其他实施方案、变形方案、改进方案、等同方案以及没有背离本发明的精神和范围的其他技术方案。
本领域技术人员应理解的是，在说明书的揭露中，术语“纵向”、“横向”、“上”、“下”、“前”、“后”、“左”、“右”、“竖直”、“水平”、“顶”、“底”“内”、“外”等指示的方位或位置关系是基于附图所示的方位或位置关系，其仅是为了便于描述本发明和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此，上述术语不能理解为对本发明的限制。
可以理解的是，术语“一”应理解为“至少一”或“一个或多个”，即在一个实施例中，一个元件的数量可以为一个，而在另外的实施例中，该元件的数量可以为多个，术语“一”不能理解为对数量的限制。
参考图1和图6，依本发明一较佳实施例的一种可预防电池包热失控蔓延的电池包冷却系统将在以下被详细地阐述，其中所述可预防电池包热失控蔓延的电池包冷却系统相对于传统的冷却系统而言，能够更好地预防电池包中的电池组920热失控蔓延，如电池自燃、电池爆炸以及热失控引发的烟雾等。作为公知地，所述电池包的箱体910内设有所述电池组920。特别地，所述可预防电池包热失控蔓延的电池包冷却系统能够被用于为汽车等车辆上的所述电池包降温，且对现有的电池包冷却系统的结构改动非常小，从而使制作成本低。
具体地，所述可预防电池包热失控蔓延的电池包冷却系统包括至少一制冷件10、至少一热交换件20和一冷却流体导流组件30。
所述冷却流体导流组件30包括若干冷却流体循环管道31和至少一电子水泵32。所述电子水泵32被可控制地通信连接于一控制器40，并被设置于所述冷却流体循环管道31上，以提供冷却流体在所述冷却流体循环管道31内循环流动的动力。所述制冷件10和所述热交换件20可热交换地连通于所述冷却流体循环管道31，以持续地冷却所述冷却流体循环管道31中的所述冷却流体。
本领域技术人员能够理解的是，所述控制器40被设置为车载控制器，如带有BMS系统的控制器。
现有的所述电池包的所述箱体910形成用于容纳所述电池组920的容置空间9101，其中所述制冷件10被设置于所述电池组920外而位于所述箱体910的所述容置空间9101，并可与所述电池组920热交换，从而在所述电池组920没有发生热失控的情况下，为所述电池组920持续地降温，以保证所述电池组920的正常工作。本领域技术人员能够理解的是，所述制冷件10可以被设置为水冷板或其它常见的冷却元件。
在一个实施例中，至少一所述冷却流体循环管道31伸入至所述容置空间9101，以与所述制冷件10连通。
作为优选地，所述冷却流体导流组件30还包括一膨胀水壶33。所述膨胀水壶33被设置与所述冷却流体循环管道31连通，以能够通过所述膨胀水壶33加注或补偿损失的冷却流体，从而给所述制冷件10提供持续的冷能。
所述热交换件20被设置于所述冷却流体循环管道31，并被设置可与所述冷却流体循环管道31中的冷却流体热交换，从而带走所述冷却流体循环管道31中所述冷却流体热量，进而冷却所述冷却流体循环管道31中所述冷却流体。这样一来，就可以使所述冷却流体循环管道31中的所述冷却流体持续地导入所述制冷件10而冷却所述电池组920，也就是说，所述热交换件20可以保证所述冷却流体循环管道31中的所述冷却流体始终为冷流体。
本领域技术人员还可以理解的是，所述冷却流体可以被设置为换热效率较高的流体，如水。
进一步地，所述可预防电池包热失控蔓延的电池包冷却系统还包括至少一流体转向组件50和至少一热失控感知件60。
所述流体转向组件50包括至少一导流通道51和至少一流体转向阀52，其中所述流体转向阀52和所述热失控感知件60被可通信地连接于所述控制器40。
所述热失控感知件60被设置于所述箱体910，优选地，所述热失控感知件60被设 置于所述容置空间9101，用以监测位于所述容置空间9101的所述电池组920是否出现热失控。所述热失控感知件60被设置为选自温度传感器、气体传感器和火焰传感器中任一个或多个，从而通过所述温度传感器实时监控所述电池包内的温度或通过所述气体传感器实时监控所述电池包内的烟雾或通过所述火焰传感器实时监控所述电池包内是否出现明火。一般情况下，为确保该装置的通用性，以及监测全面性，作为优选，所述热失控感知件同时包括所述温度传感器、所述气体传感器和所述火焰传感器。
所述导流通道51的一端被连通于所述流体转向阀52，其中所述流体转向阀52被设置于所述冷却流体循环管道31。
参考图1，在一个实施例中，所述导流通道51的另一端形成与所述导流通道51和所述容置空间9101连通的至少一出液口5101，以在所述热失控感知件60监测到所述电池组920出现热失控，并且所述流体转向阀52被所述控制器40控制而连通所述导流通道51和所述冷却流体循环管道31时，所述冷却流体循环管道31中的所述冷却流体能够经由所述出液口5101而被导入所述容置空间9101中。可以理解的是，由于所述冷却流体被导入所述容置空间9101，因此，所述冷却流体会被浇灌于所述电池组920，从而可以使所述电池组920能够被快速地降温，从而可以避免所述电池组920因为热失控而出现危险事故。
本领域技术人员能够理解的是，由于本实施例中，只是在原有的电池包冷却系统的基础上增设了所述流体转向组件50和所述热失控感知件60，且并未增加了独立于电池包冷却流体以外的其它并行的液体管道，从而能够极大地减少了对电池包冷却系统管路的改动。
此外，由于常规的冷却系统中的所述电子水泵32是由12V的锂电池供电，12V的锂电池难以驱使所述冷却流体快速地流至较大口径的所述出液口5101，因此，所述出液口5101被设置为直径较小的细密喷淋口，而且所述导流通道51的另一端形成与所述导流通道51连通的多个细密喷淋口。这样一来，传统的电子水泵32只需要提供较低的压强就可以将所述冷却流体循环管道31中的所述冷却流体快速地从所述细密喷淋口，进而防止所述冷却流体循环管道31中的流体滞后地从所述出液口5101流出。也就是说，如果不将所述出液口5101设置为直径较小的细密喷淋口，则常规的所述电子水泵32难以驱使所述冷却流体通过所述出液口5101直接到达所述电池组920的表面，而只能驱使所述冷却流体沿着所述箱体910的内壁缓慢地流到所述容置空间9101，并自下而上地填充在所述容置空间9101，这样一来，降温灭火作用存在一定的延迟。
进一步地，所述导流通道51的另一端部设置一喷淋头70，其中所述喷淋头70优选地被设置在所述容置空间9101，且位于所述箱体910的顶部，这样一来，从所述喷淋头70流出的所述冷却流体能够自上而下地洒在热失控的所述电池组920上。如此，即使所述电池组920热失控蔓延，如着火，也能够使所述电池组920的明火能够被及时被浇灭。
所述喷淋头70具有一喷淋腔和与所述喷淋腔连通的多个细密喷淋口。作为优选地，所述导流通道51连通多个沿横向排列的多个所述喷淋头70，其中所述喷淋头70都被设置在所述容置空间9101，且位于所述箱体910的顶部。这样一来，就能够使多个所述喷淋头70能够喷淋的范围覆盖整个所述电池组920。作为可变形的，所述导流通道51包括一主通道和至少两个与所述主通道连通的支流通道，其中每个所述直流通道的端部分别对接一个所述喷流头70。
更优选地，所述喷淋头70还可以被布置在所述容置空间9101内，且位于所述箱体910的侧壁。
本领域技术人员能够理解的是，所述流体转向阀52可被设置为多通电磁阀，如三通电磁阀、四通电磁阀或五通电磁阀等。所述流体转向阀52中的至少两个接口被用于连通所述冷却流体循环管道31，而其它剩余的接口被连通于所述导流通道51的一端。当剩余的接口有一个时，可以连接一所述导流通道51，当剩余的接口有两个或多个时，可以连接两个或多个所述导流通道51。当设置有两根或多个所述导流通道51时，每个所述导流通道51的另一端都可以延伸至所述容置空间9101中。
参考图2至图4，在一个变形实施例中，所述导流通道51延伸至所述容置空间9101，并横置在形成所述容置空间9101的所述箱体910顶部，而且所述导流通道51并不形成所述出液口5101。也就是说，所述导流通道51并不与所述容置空间9101连通。换句话说，所述导流通道51形成的所述导流通道51一端连接于所述流体转向阀52，而另一端被封闭。
在一个实施例中，所述导流通道51由高温可熔的管体形成。一旦所述电池组920出现热失控，所述控制器40通过接收所述热失控感知件60形成的检测信号而控制所述冷却流体预先快速地充满所述导流通道51。
本领域技术人员能够理解的是，由于在本实施例中，所述导流通道51的另一端被封堵且未与所述容置空间9101连通，因此，由12V的锂电池供电的小动力的所述电子水泵32就能够快速地将所述冷却流体充满至所述导流通道51，而由于部分所述导流通 道51横置在形成所述容置空间9101的所述箱体910顶部，因此，横置在形成所述容置空间9101的所述箱体910顶部的所述导流通道51将会被因热失控而燃烧的所述电池组920热熔，进而与所述容置空间9101连通，从而使预先充满在所述导流通道51中的所述冷却流体能够一次性地且大量地自上而下地浇灌在热失控的所述电池组920上。
参考图3和图4，本领域技术人员能够理解的是，由于所述冷却流体通过与热交换件20热交换而温度较低，因此，当所述冷却流体自上而下地浇灌在热失控的所述电池组920上后，所述电池组920的温度能够瞬间地降低，尤其是大量的所述冷却流体预先被充满于所述导流通道51，因此，即使所述电池组920出现了明火，所述冷却流体能够瞬间地浇灭明火，并为所述电池组920快速地降温。这样一来，所述电池组920就不会因为热失控而发生爆炸。
作为优选地，所述导流通道51被布置于形成所述容置空间9101的所述箱体910顶部，这样一来，在所述电池组920出现热失控情况下，所述导流通道51浇灌的面积不仅能够更大，并且预先充满于所述导流通道51中的所述导流通道5101内的所述冷却流体的量也更大，从而使后续浇灌于热失控的所述电池组920的所述冷却流体的量能够更多。
参考图5和图6，作为变形地，所述箱体910的顶部形成与所述容置空间9101隔开的至少一充流空间9102。所述导流通道51的一端被连通于所述流体转向阀52，而另一端被连通于所述充流空间9102。也就是说，所述箱体910的顶部在所述充流空间9102和所述容置空间9101之间形成一分隔层930，其中所述分隔层930的厚度被设置适于在一预定温度下被熔化，进而在熔化后形成与所述容置空间9101和所述充流空间9102连通的缺口。
因此，当所述电池组920在所述容置空间9101中出现热失控时，所述分隔层930将会被因热失控而燃烧的所述电池组920热熔，从而使所述冷却流体能够快速地浇灭热失控的所述电池组920，并快速地冷却所述电池组920。
本领域技术人员能够理解的是，由于本实施例中，所述导流通道51的一端被封堵，因此，只要所述电池组920正常工作，位于所述导流通道51中的所述冷却流体就始终不会从所述导流通道51中流至所述容置空间9101中。换句话说，这样的设计，即使所述流体转向阀52因故障，而错误地将所述冷却流体导入所述导流通道51，而由于所述电池组920正常工作下，所述导流通道51和所述容置空间9101是相互独立的，因此，所述冷却流体也不会流入所述容置空间9101中，从而有效地防止因所述流体转向阀52 故障而引发所述电池组920短路。
所述可预防电池包热失控蔓延的电池包冷却系统还包括一警报器，其中所述警报器被可通信地连接于所述热失控感知件60，其中当所述热失控感知件60检测到所述电池组920出现热失控时，所述警报器将形成相应的警报提示。所述警报器被优选实施为声音警报器和/或灯光警报器，比如蜂鸣器、警报灯等，从而通过声音发出警报、或者通过灯光发出警报，亦或者通过声音和光亮的结合同时发出警报，以能够及时提醒驾乘人员以及周边的其它人员尽快远离该新能源车，从而在电池包出现热失控时，不仅能够有效预防热失控的蔓延，还能够及时发出警报，这种双保险措施能够最大程度的降低电池包热失控所带来的人员伤亡情况。
根据本发明的另一个方面，本发明还提供一种可预防电池包热失控蔓延的电池包冷却系统的工作方法，其中所述可预防电池包热失控蔓延的电池包冷却系统的工作方法包括以下步骤：
S1001，通过设置在所述箱体910的所述容置空间9101的所述热失控感知件60监测位于所述容置空间9101中的所述电池组是否处于热失控状态；
S1002，在所述电池组处于热失控状态时，控制设置在所述冷却流体循环管道31上的所述流体转向阀52导通所述冷却流体循环管道31和连通于所述流体转向阀52的所述导流通道51，以引导位于所述冷却流体循环管道31内的所述冷却流体通过所述导流通道51流通至与所述容置空间9101，进而将所述冷却流体浇灌至位于所述容置空间9101的所述电池组920。
在一个实施例中，所述步骤S1002包括步骤：
S10021，在所述电池组处于热失控状态时，预先地导通所述冷却流体循环管道31和连通于所述流体转向阀52的所述导流通道51，其中所述导流通道51不与所述容置空间9101连通；
S10022，在热失控预定时间后，直至所述导流通道51和所述容置空间9101之间的部分被热失控的热熔化后，导通所述导流通道51和所述容置空间9101，以使预先充满在所述导流通道51中的所述冷却流体浇灌于热失控的所述电池组920。
根据本发明的又一个方面，本发明还公开一种包括上述可预防电池包热失控蔓延的电池包冷却系统的车辆。
本领域的技术人员应理解，上述描述及附图中所示的本发明的实施例只作为举例而并不限制本发明。本发明的优势已经完整并有效地实现。本发明的功能及结构原理已在 实施例中展示和说明，在没有背离所述原理下，本发明的实施方式可以有任何变形或修改。

Claims (10)

  1. 一可预防电池包热失控蔓延的电池包冷却系统，用于预防一车辆上安装于一箱体的一容置空间中一电池组热失控蔓延，其特征在于，所述可预防电池包热失控蔓延的电池包冷却系统包括：
    至少一冷却流体导流组件，其中所述冷却流体导流组件包括若干冷却流体循环管道和至少一电子水泵，其中所述电子水泵被用以通信连接于所述车辆的一控制器，并被设置于所述冷却流体循环管道；
    至少一制冷件，其中所述制冷件被连通于所述冷却流体循环管道，以冷却位于所述容置空间中的所述电池组；
    至少一热交换件，其中所述热交换件被连通于所述冷却流体循环管道；
    至少一热失控感知件，其中所述热失控感知件用以检测位于所述容置空间中的所述电池组是否处于热失控状态，且用以通信连接于所述控制器；
    至少一流体转向组件，其中所述流体转向组件包括至少一导流通道和至少一流体转向阀，其中所述流体转向阀被设置为多通电磁阀，且所述流体转向阀具有的至少两个接口被用于连通所述冷却流体循环管道，而至少一个接口被连通于所述导流通道的一端，其中所述导流通道的另一端以在所述热失控感知件检测到所述电池组是否处于热失控状态时能够与所述容置空间连通的方式设置在所述箱体。
  2. 根据权利要求1所述可预防电池包热失控蔓延的电池包冷却系统，其特征在于，所述导流通道形成至少一出液口，用于连通所述容置空间。
  3. 根据权利要求2所述可预防电池包热失控蔓延的电池包冷却系统，其特征在于，所述导流通道的另一端部布置至少一喷淋头，用于容纳在所述容置空间，其中所述喷淋头具有的细密喷淋口被定义为所述出液口。
  4. 根据权利要求1所述可预防电池包热失控蔓延的电池包冷却系统，其特征在于，所述导流通道由高温可熔的管体形成，用于横置在形成所述容置空间的所述箱体顶部，其中所述导流通道的一端与所述流体转向阀的一个所述接口连通，而另一端被封堵。
  5. 根据权利要求1所述可预防电池包热失控蔓延的电池包冷却系统，其特征在于，所述导流通道的一端被连通于所述流体转向阀，而另一端用于连通于所述箱体的顶部形成的与所述容置空间隔开的至少一充流空间。
  6. 根据权利要求1至5中任一所述可预防电池包热失控蔓延的电池包冷却系统，其特征在于，所述可预防电池包热失控蔓延的电池包冷却系统还包括一警报器，其中所述警报器被可通信地连接于所述热失控感知件。
  7. 一可预防电池包热失控蔓延的电池包冷却系统，其特征在于，所述可预防电池包热失控蔓延的电池包冷却系统包括：
    至少一电池包，其中所述电池包包括一箱体和至少一电池组，其中所述箱体形成一容置空间，其中所述电池组被容置于所述容置空间；
    一控制器；
    至少一冷却流体导流组件，其中所述冷却流体导流组件包括若干冷却流体循环管道和至少一电子水泵，其中所述电子水泵被通信连接于所述控制器，并被设置于所述冷却流体循环管道；
    至少一制冷件，其中所述制冷件被连通于所述冷却流体循环管道，以冷却位于所述容置空间中的所述电池组；
    至少一热交换件，其中所述热交换件被连通于所述冷却流体循环管道；
    至少一热失控感知件，其中所述热失控感知件用以检测位于所述容置空间中的所述电池组是否处于热失控状态，且通信连接于所述控制器；
    至少一流体转向组件，其中所述流体转向组件包括至少一导流通道和至少一流体转向阀，其中所述流体转向阀被设置为多通电磁阀，且所述流体转向阀具有的至少两个接口被用于连通所述冷却流体循环管道，而至少一个接口被连通于所述导流通道的一端，其中所述导流通道的另一端以在所述热失控感知件检测到所述电池组是否处于热失控状态时能够与所述容置空间连通的方式设置在所述箱体。
  8. 根据权利要求7所述可预防电池包热失控蔓延的电池包冷却系统，其特征在于，所述导流通道由高温可熔的管体形成，并被横置在形成所述容置空间的所述箱体顶部，其中所述导流通道的一端与所述流体转向阀的一个所述接口连通，而另一端被封堵。
  9. 根据权利要求7所述可预防电池包热失控蔓延的电池包冷却系统，其特征在于，所述箱体的顶部形成的与所述容置空间隔开的至少一充流空间，所述导流通道的一端被连通于所述流体转向阀，而另一端连通于所述充流空间。
  10. 一车辆，其特征在于，所述车辆包括如权利要求1-9中任一所述可预防电池包热失控蔓延的电池包冷却系统。
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