WO2018166218A1 - Battery early warning fire extinguishing system and battery system - Google Patents
Battery early warning fire extinguishing system and battery system Download PDFInfo
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- WO2018166218A1 WO2018166218A1 PCT/CN2017/109411 CN2017109411W WO2018166218A1 WO 2018166218 A1 WO2018166218 A1 WO 2018166218A1 CN 2017109411 W CN2017109411 W CN 2017109411W WO 2018166218 A1 WO2018166218 A1 WO 2018166218A1
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- battery
- fire extinguishing
- early warning
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- monitoring device
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C3/00—Fire prevention, containment or extinguishing specially adapted for particular objects or places
- A62C3/16—Fire prevention, containment or extinguishing specially adapted for particular objects or places in electrical installations, e.g. cableways
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- the present invention relates to the field of battery protection technologies, and in particular, to a battery early warning fire extinguishing system and a battery system.
- the current safety of the current battery system is usually monitored by the Battery Management System (BMS) and is an active safety measure.
- BMS Battery Management System
- the BMS management system has a certain risk of failure as an integrated circuit. Therefore, how to improve the safety of the battery pack during use, especially passive safety is particularly important.
- the invention provides a battery early warning fire extinguishing system and a battery system, which can solve the technical problem that the safety of the battery pack in the prior art is poor in operation.
- a battery early warning fire suppression system provided by the present invention includes a gas monitoring device and a fire extinguishing device with the gas monitoring device, wherein:
- the gas monitoring device is configured to: connect to a battery management system in the battery system, and send an early warning signal to the battery management system when detecting that a concentration of a characteristic gas emitted by the battery pack in the battery system is greater than a preset threshold A fire extinguishing start signal is issued to the fire extinguishing device.
- the battery system provided by the present invention includes the battery early warning fire extinguishing system, and further includes: a battery pack, a battery management system connected to the battery pack, and a vehicle controller connected to the battery management system, wherein: The battery management system is configured to feed the early warning signal to the user through the vehicle controller when receiving the early warning signal sent by the gas monitoring device.
- the battery early warning fire extinguishing system and the battery system provided by the invention monitor the working state of the battery pack through the gas monitoring device. If the characteristic gas concentration emitted by the battery pack is greater than a preset threshold, it indicates that the battery pack is in a failure state, and the gas monitoring device is The battery management system issues an early warning signal to facilitate the battery management system to manage and control the power supply of the battery pack. In addition, a fire extinguishing start signal is sent to the fire extinguishing device to remind the fire extinguishing device to extinguish the failed battery and extinguish the fire in time to realize the battery. The group's passive safety protection ensures the safe operation of the battery pack.
- FIG. 1 is a block diagram showing the structure of a battery system in an embodiment of the present invention
- FIG. 2 is a block diagram showing the structure of a battery system in an embodiment of the present invention.
- FIG. 3 is a schematic structural diagram of a battery interval heat protection component according to an embodiment of the present invention.
- FIG. 4 is a schematic structural diagram of a power battery pack according to an embodiment of the present invention.
- the invention provides a battery early warning fire extinguishing system.
- the battery early warning fire extinguishing system comprises: a gas monitoring device and a fire extinguishing device with the gas monitoring device, wherein:
- the gas monitoring device is configured to: connect to a battery management system in the battery system, and send an early warning signal to the battery management system when detecting that a concentration of a characteristic gas emitted by the battery pack in the battery system is greater than a preset threshold A fire extinguishing start signal is issued to the fire extinguishing device.
- the battery system when the concentration of the characteristic gas or the characteristic gas of the battery pack is less than or equal to a preset threshold, the battery system is characterized as being in a normal working state; once the concentration of the characteristic gas emitted by the battery pack in the battery system is higher than the preset At the threshold, the battery in the battery system is characterized as having failed, and the battery system enters an abnormal working state, that is, a failed state.
- the gas monitoring system when the gas monitoring device monitors that the concentration of the characteristic gas emitted by the battery pack is greater than a preset threshold, the gas monitoring system sends a fire extinguishing start signal to the fire extinguishing device, and the fire extinguishing device sprays the fire extinguishing agent when receiving the fire extinguishing start signal. Extinguishing.
- the gas monitoring device monitors the concentration of the characteristic gas emitted by the battery pack is greater than the pre- When the threshold is set, the gas monitoring device sends an early warning signal to the battery management system in the battery system.
- the battery management system can pass various processing methods, for example, feedback to the user through the vehicle controller, so that the user knows the current For the state of the battery pack, for example, the battery pack may be powered off by cutting off the external power supply circuit of the battery pack.
- the characteristic gas may be carbon monoxide or the like, or may be a volatile organic compound.
- the types of characteristic gases are different for different types of batteries, and the invention is not limited thereto.
- the battery early warning fire extinguishing system monitors the working state of the battery pack through the gas monitoring device. If the characteristic gas concentration emitted by the battery pack is greater than a preset threshold, it indicates that the battery pack is in a failure state, and the gas monitoring device is directed to the battery management system. An early warning signal is issued to facilitate the battery management system to manage and control the power supply of the battery pack. In addition, a fire extinguishing start signal is sent to the fire extinguishing device to remind the fire extinguishing device to extinguish the failed battery and extinguish the fire in time to achieve passive operation on the battery pack. Safety protection to ensure the safe operation of the battery pack.
- the battery warning fire extinguishing system provided by the present invention may further be provided with a DC/DC converter connected to the gas monitoring device and the battery pack.
- the DC voltage signal of the battery pack is stepped down and supplied to the gas monitoring device.
- the so-called buck converts the DC high voltage signal of the battery pack into a DC low voltage signal of 12v, so that the low voltage signal obtained by stepping down the battery pack by the DC/DC converter can supply power to the gas monitoring device.
- a DC/DC converter can also be connected to the fire extinguishing device, such that the DC/DC converter can also be used to connect the battery pack.
- the DC voltage signal is stepped down and supplied to the fire extinguishing device.
- the DC voltage of the battery pack can be stepped down by setting a DC/DC converter, and then the gas monitoring device and/or the fire extinguishing device can be powered.
- a power source may be provided to connect the power source to the fire extinguishing device and/or the A gas monitoring device for powering the fire extinguishing device and/or the gas monitoring device.
- the fire extinguishing device and/or the gas monitoring device are powered by means of a dedicated power source.
- the present invention provides a battery system, as shown in FIGS. 1 and 2, the system includes any of the above battery early warning fire extinguishing systems, and further includes a battery pack and a battery management system connected to the battery pack. And a vehicle controller connected to the battery management system, wherein: the battery management system is configured to feed back the early warning signal to the vehicle controller by receiving the warning signal sent by the gas monitoring device user.
- an early warning signal is sent to the battery management system, and the battery management system provides the early warning signal when receiving the early warning signal.
- the signal is sent to the vehicle controller, which reports the warning signal to the user so that the user can know the current state of the battery pack in order to take action.
- a high voltage box may also be disposed in the battery system.
- the so-called high voltage box refers to a bridge between the battery pack and the load, and the battery pack supplies power to the load through the high voltage box.
- a high voltage tank is connected to the battery management system and the battery pack.
- an early warning signal is sent to the battery management system, and the battery management system provides the early warning signal when receiving the early warning signal.
- the signal is sent to the vehicle controller, and then the vehicle controller issues an instruction, and the battery management system sends the command to the high voltage box to cut off the internal voltage of the high voltage box, so that the battery pack cannot supply power to the load.
- the above battery pack may include a battery interval heat protection assembly 1 and a plurality of batteries 2; the battery interval heat protection assembly 1 is disposed between two adjacent batteries 2.
- the battery compartment thermal protection component 1 comprises: a thermal barrier coating 11 and a mica plate 12; the thermal barrier coating 11 is disposed on the mica plate 12 on the basis of a mica plate.
- a mica board and a heat insulation coating are provided. Both the mica board and the thermal barrier coating have a thermal insulation effect, which can well insulate the battery and block the heat diffusion between the batteries.
- the thermal barrier coating 11 comprises a heated foamed material; the heated foamed material begins to foam in an environment of 100 ° C or higher to form a thermal barrier layer.
- the insulation material is too thin, which will result in poor insulation effect, while the excessive thickness will occupy space.
- such a problem can be effectively solved by providing the heat insulating coating as a heat-reducing foaming material.
- the above-mentioned heated foamed material may be a composite material including ammonium dihydrogen phosphate, urea and polyoxymethylene.
- the heated foamed material here can also be made of other materials.
- the heat insulating coating has a single layer thickness of 0.3 to 0.6 mm, and the mica plate has a thickness of 0.1 to 0.2 mm.
- the battery compartment thermal protection component 1 can be connected to the outer surface of the battery by a heat resistant double-sided tape. This facilitates the battery compartment heat protection assembly 1 to be in close contact with the battery, making the structure more compact.
- the present invention can also provide an electric vehicle comprising the power battery pack according to any of the above embodiments.
- the embodiment of the present invention further provides a method for fabricating a battery compartment thermal protection component, which can be used to fabricate the battery compartment thermal protection component according to any of the above embodiments.
- the basic steps of the method include:
- the corresponding manufacturing method may be different from the manufacturing method described in the above embodiments, and these are those that can be described by those skilled in the art according to the present invention.
- the present invention can be omitted without the need for creative labor.
- the invention provides a battery early warning fire extinguishing system and a battery system
- the battery early warning fire extinguishing system comprises a gas monitoring device and a fire extinguishing device with the gas monitoring device
- the gas monitoring device is configured to: connect to a battery management system in the battery system, In detecting the battery pack in the battery system When the concentration of the characteristic gas is greater than a predetermined threshold, an early warning signal is issued to the battery management system and a fire extinguishing activation signal is issued to the fire extinguishing device.
- the invention monitors the working state of the battery pack through the gas monitoring device.
- the gas monitoring device sends an early warning signal to the battery management system to facilitate the battery.
- the management system manages and controls the power supply of the battery pack. In addition, it also sends a fire extinguishing start signal to the fire extinguishing device to remind the fire extinguishing device to extinguish the failed battery and extinguish the fire in time to achieve passive safety protection for the battery pack and ensure the battery pack. Safe operation and excellent industrial application prospects.
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Abstract
A battery early warning fire extinguishing system and a battery system. The battery early warning fire extinguishing system comprises a gas monitoring device and a fire extinguishing device connected with the gas monitoring device. The gas monitoring device is used for connecting to a battery management system in a battery system and sending an early warning signal to the battery management system and sending a fire extinguishing starting signal to the fire extinguishing device when detecting that the concentration of a characteristic gas emitted from a battery pack in the battery system is greater than a preset threshold. The operating state of a battery pack is monitored by a gas monitoring device; if the concentration of a characteristic gas emitted from the battery pack is greater than a preset threshold, it is indicated that the battery pack is in a failed state, and at this time, the gas monitoring device sends an early warning signal to a battery management system, such that the battery management system performs management and control on the power supply of the battery pack and sends a fire extinguishing starting signal to a fire extinguishing device, so as to prompt the fire extinguishing device to perform fire extinguishing on failed batteries, so that fire extinguishing is performed in time, passive safety protection on the battery pack is implemented, and operating safety of the battery pack is ensured.
Description
本发明涉及电池保护技术领域，尤其是涉及一种电池预警灭火***和电池***。The present invention relates to the field of battery protection technologies, and in particular, to a battery early warning fire extinguishing system and a battery system.
电池***在过量充电或长时间大电流工作状况下，电池组的温度会升高，严重情况下可能会发生热失控会危及电池组的使用安全。由于众多电池是紧邻排列组成，热量极易扩散，从而引起其它电池发生热失控，这样的连锁反应将极大的增大电池***的失效风险。When the battery system is overcharged or used for a long period of time, the temperature of the battery pack will rise. In severe cases, thermal runaway may endanger the safety of the battery pack. Since many batteries are arranged in close proximity, heat is easily diffused, causing thermal runaway of other batteries, and such a chain reaction will greatly increase the risk of failure of the battery system.
现行的目前电池***的使用安全通常是通过电池管理***(BMS)进行监控的，是一种主动安全防护措施。但BMS管理***作为集成电路存在一定的失效风险。因此如何提升电池组使用过程中的安全性，特别是被动安全性尤为重要。The current safety of the current battery system is usually monitored by the Battery Management System (BMS) and is an active safety measure. However, the BMS management system has a certain risk of failure as an integrated circuit. Therefore, how to improve the safety of the battery pack during use, especially passive safety is particularly important.
发明内容Summary of the invention
本发明提供一种电池预警灭火***和电池***，可以解决现有技术中电池组在运行中的安全性较差的技术问题。The invention provides a battery early warning fire extinguishing system and a battery system, which can solve the technical problem that the safety of the battery pack in the prior art is poor in operation.
第一方面，本发明提供的电池预警灭火***包括气体监控装置以及与所述气体监控装置的灭火装置，其中：In a first aspect, a battery early warning fire suppression system provided by the present invention includes a gas monitoring device and a fire extinguishing device with the gas monitoring device, wherein:
所述气体监控装置用于：连接至电池***中的电池管理***，在检测所述电池***中的电池组发出的特征气体的浓度大于预设阈值时，向所述电池管理***发出预警信号以及向所述灭火装置发出灭火启动信号。The gas monitoring device is configured to: connect to a battery management system in the battery system, and send an early warning signal to the battery management system when detecting that a concentration of a characteristic gas emitted by the battery pack in the battery system is greater than a preset threshold A fire extinguishing start signal is issued to the fire extinguishing device.
第二方面，本发明提供的电池***包括上述电池预警灭火***，还包括：电池组、与所述电池组连接的电池管理***以及与所述电池管理***连接的整车控制器，其中：所述电池管理***用于在接收到所述气体监控装置发出的预警信号时通过所述整车控制器将所述预警信号反馈至用户。
In a second aspect, the battery system provided by the present invention includes the battery early warning fire extinguishing system, and further includes: a battery pack, a battery management system connected to the battery pack, and a vehicle controller connected to the battery management system, wherein: The battery management system is configured to feed the early warning signal to the user through the vehicle controller when receiving the early warning signal sent by the gas monitoring device.
本发明提供的电池预警灭火***和电池***，通过气体监控装置监测电池组的工作状态，若电池组发出的特征气体浓度大于预设阈值时，表明电池组处于失效状态，此时气体监控装置向电池管理***发出预警信号，以便于电池管理***对电池组的供电进行管理控制，另外，还会向灭火装置发出灭火启动信号，以便提醒灭火装置对失效电池进行灭火，以及时灭火，实现对电池组的被动安全防护，保证电池组的运行安全。The battery early warning fire extinguishing system and the battery system provided by the invention monitor the working state of the battery pack through the gas monitoring device. If the characteristic gas concentration emitted by the battery pack is greater than a preset threshold, it indicates that the battery pack is in a failure state, and the gas monitoring device is The battery management system issues an early warning signal to facilitate the battery management system to manage and control the power supply of the battery pack. In addition, a fire extinguishing start signal is sent to the fire extinguishing device to remind the fire extinguishing device to extinguish the failed battery and extinguish the fire in time to realize the battery. The group's passive safety protection ensures the safe operation of the battery pack.
图1示出了本发明一实施例中电池***的结构框图；1 is a block diagram showing the structure of a battery system in an embodiment of the present invention;
图2示出了本发明一实施例中电池***的结构框图；2 is a block diagram showing the structure of a battery system in an embodiment of the present invention;
图3是本发明一实施例提供的电池间隔热防护组件的结构示意图；3 is a schematic structural diagram of a battery interval heat protection component according to an embodiment of the present invention;
图4是本发明一实施例提供的动力电池组的结构示意图。FIG. 4 is a schematic structural diagram of a power battery pack according to an embodiment of the present invention.
下面通过最佳实施例来说明本发明。本领域技术人员所应知的是，实施例只用来说明本发明而不是用来限制本发明的范围。The invention is illustrated below by the preferred embodiment. It should be understood by those skilled in the art that the present invention is not intended to limit the scope of the invention.
实施例中，如无特别说明，所用手段均为本领域常规的手段。In the examples, the means used are all conventional means in the art unless otherwise specified.
本发明提供一种电池预警灭火***，如图1、2所示，该电池预警灭火***包括：气体监控装置以及与所述气体监控装置的灭火装置，其中：The invention provides a battery early warning fire extinguishing system. As shown in FIGS. 1 and 2, the battery early warning fire extinguishing system comprises: a gas monitoring device and a fire extinguishing device with the gas monitoring device, wherein:
所述气体监控装置用于：连接至电池***中的电池管理***，在检测所述电池***中的电池组发出的特征气体的浓度大于预设阈值时，向所述电池管理***发出预警信号以及向所述灭火装置发出灭火启动信号。The gas monitoring device is configured to: connect to a battery management system in the battery system, and send an early warning signal to the battery management system when detecting that a concentration of a characteristic gas emitted by the battery pack in the battery system is greater than a preset threshold A fire extinguishing start signal is issued to the fire extinguishing device.
可理解的是，当电池组未发出特征气体或特征气体的浓度小于或等于预设阈值时，表征电池***处于正常工作状态；一旦电池***中的电池组发出的特征气体的浓度高于预设阈值时，表征电池***中存在发生失效的电池，电池***进入非正常工作状态，即失效状态。It can be understood that when the concentration of the characteristic gas or the characteristic gas of the battery pack is less than or equal to a preset threshold, the battery system is characterized as being in a normal working state; once the concentration of the characteristic gas emitted by the battery pack in the battery system is higher than the preset At the threshold, the battery in the battery system is characterized as having failed, and the battery system enters an abnormal working state, that is, a failed state.
可理解的是，当气体监控装置监测电池组发出的特征气体的浓度大于预设阈值时，气体监控***向灭火装置发出灭火启动信号，灭火装置在接收到灭火启动信号时会喷射灭火剂，进行灭火。It can be understood that when the gas monitoring device monitors that the concentration of the characteristic gas emitted by the battery pack is greater than a preset threshold, the gas monitoring system sends a fire extinguishing start signal to the fire extinguishing device, and the fire extinguishing device sprays the fire extinguishing agent when receiving the fire extinguishing start signal. Extinguishing.
可理解的是，当气体监控装置监测电池组发出的特征气体的浓度大于预
设阈值时，气体监控装置向电池***中的电池管理***发出预警信号，电池管理***在接收到预警信号时可以通过多种处理方法，例如，通过整车控制器反馈给用户，使用户获知当前电池组的状态，再例如，也可以通过切断电池组对外供电回路的方式使电池组停止供电等。Understandably, when the gas monitoring device monitors the concentration of the characteristic gas emitted by the battery pack is greater than the pre-
When the threshold is set, the gas monitoring device sends an early warning signal to the battery management system in the battery system. When receiving the warning signal, the battery management system can pass various processing methods, for example, feedback to the user through the vehicle controller, so that the user knows the current For the state of the battery pack, for example, the battery pack may be powered off by cutting off the external power supply circuit of the battery pack.
可理解的是，所谓的特征气体可以是一氧化碳等，也可以是挥发性有机化合物，对于不同类型的电池，特征气体的种类不同，对此本发明不做限定。It can be understood that the characteristic gas may be carbon monoxide or the like, or may be a volatile organic compound. The types of characteristic gases are different for different types of batteries, and the invention is not limited thereto.
本发明提供的电池预警灭火***，通过气体监控装置监测电池组的工作状态，若电池组发出的特征气体浓度大于预设阈值时，表明电池组处于失效状态，此时气体监控装置向电池管理***发出预警信号，以便于电池管理***对电池组的供电进行管理控制，另外，还会向灭火装置发出灭火启动信号，以便提醒灭火装置对失效电池进行灭火，以及时灭火，实现对电池组的被动安全防护，保证电池组的运行安全。The battery early warning fire extinguishing system provided by the invention monitors the working state of the battery pack through the gas monitoring device. If the characteristic gas concentration emitted by the battery pack is greater than a preset threshold, it indicates that the battery pack is in a failure state, and the gas monitoring device is directed to the battery management system. An early warning signal is issued to facilitate the battery management system to manage and control the power supply of the battery pack. In addition, a fire extinguishing start signal is sent to the fire extinguishing device to remind the fire extinguishing device to extinguish the failed battery and extinguish the fire in time to achieve passive operation on the battery pack. Safety protection to ensure the safe operation of the battery pack.
在具体实施时，如图1所示，本发明提供的电池预警灭火***中还可以设置一DC/DC转换器，该DC/DC转换器连接至所述气体监控装置和所述电池组，用于将所述电池组的直流电压信号降压后供至所述气体监控装置。这里所谓的降压，例如将电池组的直流高压信号转换为12v的直流低压信号，这样可以利用DC/DC转换器将电池组降压后得到的低压信号为气体监控装置供电。In a specific implementation, as shown in FIG. 1 , the battery warning fire extinguishing system provided by the present invention may further be provided with a DC/DC converter connected to the gas monitoring device and the battery pack. The DC voltage signal of the battery pack is stepped down and supplied to the gas monitoring device. The so-called buck here, for example, converts the DC high voltage signal of the battery pack into a DC low voltage signal of 12v, so that the low voltage signal obtained by stepping down the battery pack by the DC/DC converter can supply power to the gas monitoring device.
当然，如图1所示，如果设置DC/DC转换器的话，还可以将DC/DC转换器还连接至所述灭火装置，这样所述DC/DC转换器还可以用于将所述电池组的直流电压信号降压后供至所述灭火装置。Of course, as shown in FIG. 1, if a DC/DC converter is provided, a DC/DC converter can also be connected to the fire extinguishing device, such that the DC/DC converter can also be used to connect the battery pack. The DC voltage signal is stepped down and supplied to the fire extinguishing device.
也就是说，可以通过设置一DC/DC转换器，对电池组的直流电压进行降压，然后为气体监控装置和/或灭火装置供电。当然，除了设置一DC/DC转换器的方式为气体监控装置和/或灭火装置供电外，如图2所示，还可以设置一个电源，将该电源连接至所述灭火装置和/或所述气体监控装置，用于为所述灭火装置和/或所述气体监控装置供电。这里，通过设置一个专门的电源的方式为灭火装置和/或气体监控装置供电。That is to say, the DC voltage of the battery pack can be stepped down by setting a DC/DC converter, and then the gas monitoring device and/or the fire extinguishing device can be powered. Of course, in addition to providing a DC/DC converter for powering the gas monitoring device and/or the fire extinguishing device, as shown in FIG. 2, a power source may be provided to connect the power source to the fire extinguishing device and/or the A gas monitoring device for powering the fire extinguishing device and/or the gas monitoring device. Here, the fire extinguishing device and/or the gas monitoring device are powered by means of a dedicated power source.
第二方面，本发明提供一种电池***，如图1、2所示，该***包括上述任一电池预警灭火***，还包括电池组、与所述电池组连接的电池管理***
以及与所述电池管理***连接的整车控制器，其中：所述电池管理***用于在接收到所述气体监控装置发出的预警信号时通过所述整车控制器将所述预警信号反馈至用户。In a second aspect, the present invention provides a battery system, as shown in FIGS. 1 and 2, the system includes any of the above battery early warning fire extinguishing systems, and further includes a battery pack and a battery management system connected to the battery pack.
And a vehicle controller connected to the battery management system, wherein: the battery management system is configured to feed back the early warning signal to the vehicle controller by receiving the warning signal sent by the gas monitoring device user.
也就是说，当电池预警灭火***中的气体监控装置检测到电池组发出的特征气体的浓度大于预设阈值时，向电池管理***发出预警信号，电池管理***在接收到预警信号时将该预警信号发送给整车控制器，该整车控制器将预警信号反馈给用户，这样用户便可以知道当前电池组的状态，以便采取措施。That is to say, when the gas monitoring device in the battery early warning fire extinguishing system detects that the concentration of the characteristic gas emitted by the battery pack is greater than a preset threshold, an early warning signal is sent to the battery management system, and the battery management system provides the early warning signal when receiving the early warning signal. The signal is sent to the vehicle controller, which reports the warning signal to the user so that the user can know the current state of the battery pack in order to take action.
在具体实施时，还可以电池***中设置一高压箱，所谓的高压箱，是指电池组与负载之间的桥梁，电池组通过高压箱为负载供电。将高压箱与电池管理***和所述电池组连接。这样，当整车控制器在接收到所述预警信号时通过所述电池管理***向所述高压箱发出用于切断所述高压箱的内部电路的指令。In a specific implementation, a high voltage box may also be disposed in the battery system. The so-called high voltage box refers to a bridge between the battery pack and the load, and the battery pack supplies power to the load through the high voltage box. A high voltage tank is connected to the battery management system and the battery pack. Thus, when the vehicle controller receives the warning signal, an instruction to cut off the internal circuit of the high voltage box is issued to the high voltage box through the battery management system.
也就是说，当电池预警灭火***中的气体监控装置检测到电池组发出的特征气体的浓度大于预设阈值时，向电池管理***发出预警信号，电池管理***在接收到预警信号时将该预警信号发送给整车控制器，然后整车控制器发出一指令，电池管理***将该指令发送给高压箱，以切断高压箱的内部电压，从而使得电池组不能为负载供电。That is to say, when the gas monitoring device in the battery early warning fire extinguishing system detects that the concentration of the characteristic gas emitted by the battery pack is greater than a preset threshold, an early warning signal is sent to the battery management system, and the battery management system provides the early warning signal when receiving the early warning signal. The signal is sent to the vehicle controller, and then the vehicle controller issues an instruction, and the battery management system sends the command to the high voltage box to cut off the internal voltage of the high voltage box, so that the battery pack cannot supply power to the load.
如图3和4所示，上述电池组可以包括电池间隔热防护组件1以及多个电池2；相邻两个电池2之间设置有所述电池间隔热防护组件1。电池间隔热防护组件1包括：隔热涂层11和云母板12；所述隔热涂层11以云母板为基底，设置涂覆在所述云母板12上。As shown in FIGS. 3 and 4, the above battery pack may include a battery interval heat protection assembly 1 and a plurality of batteries 2; the battery interval heat protection assembly 1 is disposed between two adjacent batteries 2. The battery compartment thermal protection component 1 comprises: a thermal barrier coating 11 and a mica plate 12; the thermal barrier coating 11 is disposed on the mica plate 12 on the basis of a mica plate.
上述电池间隔热防护组件中，设置有云母板和隔热涂层。云母板和隔热涂层均具有隔热作用，能够很好的对电池进行隔热，从而阻挡电池间的热扩散。In the above battery compartment heat protection component, a mica board and a heat insulation coating are provided. Both the mica board and the thermal barrier coating have a thermal insulation effect, which can well insulate the battery and block the heat diffusion between the batteries.
在一些实施例中，所述隔热涂层11中包含受热发泡材料；所述受热发泡材料始于在大于等于100℃的环境中发泡，形成隔热层。In some embodiments, the thermal barrier coating 11 comprises a heated foamed material; the heated foamed material begins to foam in an environment of 100 ° C or higher to form a thermal barrier layer.
在隔热设计中，隔热材料过薄，会导致隔热效果差，而过厚则比较占用
空间。本发明实施例中，通过将隔热涂层设置为受热发泡材料，能够有效的解决这样的问题。In the heat insulation design, the insulation material is too thin, which will result in poor insulation effect, while the excessive thickness will occupy
space. In the embodiment of the present invention, such a problem can be effectively solved by providing the heat insulating coating as a heat-reducing foaming material.
具体的，上述所述的受热发泡材料可以为复合材料，其中包括磷酸二氢铵、尿素及聚甲醛。当然在具体实施时，这里的受热发泡材料也可以采用其他材料制作。Specifically, the above-mentioned heated foamed material may be a composite material including ammonium dihydrogen phosphate, urea and polyoxymethylene. Of course, in the specific implementation, the heated foamed material here can also be made of other materials.
所述隔热涂层单层厚度0.3～0.6mm，所述云母板厚度0.1-0.2mm。The heat insulating coating has a single layer thickness of 0.3 to 0.6 mm, and the mica plate has a thickness of 0.1 to 0.2 mm.
在具体实施时，电池间隔热防护组件1可以通过耐热双面胶与电池的外表面相连。这样有利于电池间隔热防护组件1与电池紧密贴合，使得结构更为紧凑。In a specific implementation, the battery compartment thermal protection component 1 can be connected to the outer surface of the battery by a heat resistant double-sided tape. This facilitates the battery compartment heat protection assembly 1 to be in close contact with the battery, making the structure more compact.
另外，本发明还可以提供了一种电动汽车，包括上述任一实施方式所述的动力电池组。Further, the present invention can also provide an electric vehicle comprising the power battery pack according to any of the above embodiments.
再一个方面，本发明实施例还提供了一种电池间隔热防护组件的制作方法，可以用以制作上述任一实施例所述的电池间隔热防护组件，该方法的基本步骤包括：In a further aspect, the embodiment of the present invention further provides a method for fabricating a battery compartment thermal protection component, which can be used to fabricate the battery compartment thermal protection component according to any of the above embodiments. The basic steps of the method include:
提供一云母板；Providing a mica board;
在云母板上涂覆隔热涂层。Apply a thermal barrier coating to the mica board.
另外，对应于上述任一实施例所述的电池间隔热防护组件，相应的制作方法相对于上述实施例所述的制作方法可能存在一定不同，这些都是本领域技术人员能够根据本发明的记载而无需付出创造性的劳动的情况下能够做到的，本发明在此不再赘述。In addition, corresponding to the battery spacing heat protection component described in any of the above embodiments, the corresponding manufacturing method may be different from the manufacturing method described in the above embodiments, and these are those that can be described by those skilled in the art according to the present invention. The present invention can be omitted without the need for creative labor.
以上的实施例仅仅是对本发明的优选实施方式进行描述，并非对本发明的范围进行限定，在不脱离本发明设计精神的前提下，本领域普通工程技术人员对本发明的技术方案做出的各种变型和改进，均应落入本发明的权利要求书确定的保护范围内。The above embodiments are merely illustrative of the preferred embodiments of the present invention, and are not intended to limit the scope of the present invention. Variations and modifications are intended to fall within the scope of the invention as defined by the appended claims.
本发明提供一种电池预警灭火***和电池***，电池预警灭火***包括气体监控装置以及与所述气体监控装置的灭火装置，所述气体监控装置用于：连接至电池***中的电池管理***，在检测所述电池***中的电池组发出的
特征气体的浓度大于预设阈值时，向所述电池管理***发出预警信号以及向所述灭火装置发出灭火启动信号。本发明通过气体监控装置监测电池组的工作状态，若电池组发出的特征气体浓度大于预设阈值时，表明电池组处于失效状态，此时气体监控装置向电池管理***发出预警信号，以便于电池管理***对电池组的供电进行管理控制，另外，还会向灭火装置发出灭火启动信号，以便提醒灭火装置对失效电池进行灭火，以及时灭火，实现对电池组的被动安全防护，保证电池组的运行安全，具有极好的工业应用前景。
The invention provides a battery early warning fire extinguishing system and a battery system, the battery early warning fire extinguishing system comprises a gas monitoring device and a fire extinguishing device with the gas monitoring device, the gas monitoring device is configured to: connect to a battery management system in the battery system, In detecting the battery pack in the battery system
When the concentration of the characteristic gas is greater than a predetermined threshold, an early warning signal is issued to the battery management system and a fire extinguishing activation signal is issued to the fire extinguishing device. The invention monitors the working state of the battery pack through the gas monitoring device. If the characteristic gas concentration emitted by the battery pack is greater than a preset threshold, it indicates that the battery pack is in a failure state, and the gas monitoring device sends an early warning signal to the battery management system to facilitate the battery. The management system manages and controls the power supply of the battery pack. In addition, it also sends a fire extinguishing start signal to the fire extinguishing device to remind the fire extinguishing device to extinguish the failed battery and extinguish the fire in time to achieve passive safety protection for the battery pack and ensure the battery pack. Safe operation and excellent industrial application prospects.
Claims (12)
- 一种电池预警灭火***，其特征在于，包括气体监控装置以及与所述气体监控装置的灭火装置，其中：A battery early warning fire extinguishing system is characterized by comprising a gas monitoring device and a fire extinguishing device with the gas monitoring device, wherein:所述气体监控装置用于：连接至电池***中的电池管理***，在检测所述电池***中的电池组发出的特征气体的浓度大于预设阈值时，向所述电池管理***发出预警信号以及向所述灭火装置发出灭火启动信号。The gas monitoring device is configured to: connect to a battery management system in the battery system, and send an early warning signal to the battery management system when detecting that a concentration of a characteristic gas emitted by the battery pack in the battery system is greater than a preset threshold A fire extinguishing start signal is issued to the fire extinguishing device.
- 根据权利要求1所述的电池预警灭火***，其特征在于，还包括：The battery early warning fire extinguishing system according to claim 1, further comprising:DC/DC转换器，连接至所述气体监控装置和所述电池组，用于将所述电池组的直流电压信号降压后供至所述气体监控装置。A DC/DC converter is coupled to the gas monitoring device and the battery pack for stepping down the DC voltage signal of the battery pack to the gas monitoring device.
- 根据权利要求2所述的电池预警灭火***，其特征在于，所述DC/DC转换器还连接至所述灭火装置，所述DC/DC转换器还用于将所述电池组的直流电压信号降压后供至所述灭火装置。The battery early warning fire extinguishing system according to claim 2, wherein said DC/DC converter is further connected to said fire extinguishing device, said DC/DC converter further for dc voltage signal of said battery pack After the pressure reduction, it is supplied to the fire extinguishing device.
- 根据权利要求1所述的电池预警灭火***，其特征在于，还包括：The battery early warning fire extinguishing system according to claim 1, further comprising:电源，连接至所述灭火装置和/或所述气体监控装置，用于为所述灭火装置和/或所述气体监控装置供电。A power source is coupled to the fire extinguishing device and/or the gas monitoring device for powering the fire extinguishing device and/or the gas monitoring device.
- 根据权利要求1～4任一所述的电池预警灭火***，其特征在于，所述特征气体包括挥发性有机化合物。The battery early warning fire extinguishing system according to any one of claims 1 to 4, wherein the characteristic gas comprises a volatile organic compound.
- 一种电池***，其特征在于，包括权利要求1～5任一所述的电池预警灭火***，还包括：电池组、与所述电池组连接的电池管理***以及与所述电池管理***连接的整车控制器，其中：A battery system, comprising the battery early warning fire extinguishing system according to any one of claims 1 to 5, further comprising: a battery pack, a battery management system connected to the battery pack, and a battery management system Vehicle controller, where:所述电池管理***用于在接收到所述气体监控装置发出的预警信号时通过所述整车控制器将所述预警信号反馈至用户。The battery management system is configured to feed the early warning signal to the user through the vehicle controller when receiving the early warning signal sent by the gas monitoring device.
- 根据权利要求6所述的电池***，其特征在于，还包括：The battery system according to claim 6, further comprising:高压箱，连接至所述电池管理***和所述电池组；a high voltage box connected to the battery management system and the battery pack;对应的，所述整车控制器还用于：在接收到所述预警信号时通过所述电池管理***向所述高压箱发出用于切断所述高压箱的内部电路的指令。Correspondingly, the vehicle controller is further configured to: send an instruction for cutting off an internal circuit of the high voltage box to the high voltage box by the battery management system when receiving the warning signal.
- 根据权利要求6或7所述的电池***，其特征在于，所述电池组包括电池间隔热防护组件以及多个电池；相邻两个电池之间设置有所述电池间隔热 防护组件，所述电池间隔热防护组件包括隔热涂层和云母板；所述隔热涂层设置涂覆在所述云母板上。The battery system according to claim 6 or 7, wherein the battery pack comprises a battery interval heat protection component and a plurality of batteries; and the battery compartment heat is disposed between adjacent two batteries A protective component, the battery compartment thermal protection component comprising a thermal barrier coating and a mica plate; the thermal barrier coating disposed on the mica board.
- 根据权利要求8所述的电池***，其特征在于，所述隔热涂层中包含受热发泡材料；所述受热发泡材料始于在大于等于100℃的环境中发泡，形成隔热层。The battery system according to claim 8, wherein the heat insulating coating layer comprises a heat-reducing foaming material; the heat-expandable foaming material starts to foam in an environment of 100 ° C or more to form a heat insulating layer. .
- 根据权利要求8所述的电池***，其特征在于，所述受热发泡材料为复合材料，其中包括磷酸二氢铵、尿素及聚甲醛。The battery system according to claim 8, wherein said heated foamed material is a composite material comprising ammonium dihydrogen phosphate, urea, and polyoxymethylene.
- 根据权利要求8所述的电池***，其特征在于，所述隔热涂层单层厚度为0.3～0.6mm，所述云母板厚度为0.1-0.2mm。The battery system according to claim 8, wherein the heat insulating coating has a single layer thickness of 0.3 to 0.6 mm, and the mica plate has a thickness of 0.1 to 0.2 mm.
- 根据权利要求8所述的电池***，其特征在于，所述电池间隔热防护组件通过耐热双面胶与电池的外表面相连。 The battery system of claim 8 wherein said battery compartment thermal protection component is coupled to the outer surface of the battery by a heat resistant double sided tape.
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| CN201710150804.3 | 2017-03-14 | ||
| CN201710150903.1A CN106730499A (en) | 2017-03-14 | 2017-03-14 | Battery early warning fire extinguishing system and battery system |
| CN201710150804.3A CN106654462A (en) | 2017-03-14 | 2017-03-14 | Heat-insulation protective assembly between batteries, manufacturing method, battery pack and electric automobile |
| CN201710150903.1 | 2017-03-14 |
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| WO2018166218A1 true WO2018166218A1 (en) | 2018-09-20 |
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