CN211675968U - System for be used for battery package to put out a fire and install vehicle of this system - Google Patents
System for be used for battery package to put out a fire and install vehicle of this system Download PDFInfo
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- CN211675968U CN211675968U CN201921407078.XU CN201921407078U CN211675968U CN 211675968 U CN211675968 U CN 211675968U CN 201921407078 U CN201921407078 U CN 201921407078U CN 211675968 U CN211675968 U CN 211675968U
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Abstract
The present disclosure relates to a system for extinguishing a battery pack and a vehicle mounting the same to solve the problem of extinguishing a battery pack. The system comprises: the fire extinguishing system comprises a controller, a plurality of information acquisition devices connected with the controller, and a plurality of fire extinguishing agent containers connected with the controller, wherein the fire extinguishing agent containers are arranged in one-to-one correspondence with a plurality of battery packs in a power battery; each information acquisition device is respectively arranged in the box body of each battery pack; each fire extinguishing agent container is arranged outside the box body of each battery pack, and a fire extinguishing agent outlet of each fire extinguishing agent container is connected with a corresponding fire extinguishing agent inlet of each battery pack. Therefore, the controller can independently control fire extinguishing aiming at each battery pack provided with the information acquisition device and the fire extinguishing agent container, and the safety of the vehicle is improved.
Description
Technical Field
The present disclosure relates to the field of automotive safety, and in particular, to a system for battery pack fire suppression and a vehicle equipped with the system.
Background
Currently, the safety problem of the power battery of the new energy automobile becomes the core problem of the industry development. During the use of the power battery, various factors may cause the safety problem of the power battery, for example, electrolyte leakage in a battery pack box, a circuit short circuit, poor heat dissipation and over-high temperature may induce the battery pack of the vehicle to catch fire, which may cause safety accidents of the power battery and the vehicle. In the prior art, the safety problem of the battery pack is difficult to solve fundamentally, and the management and control of the safety risk of the battery pack are basically considered from the application aspect of the battery pack, for example, a battery pack fire extinguishing system, a battery pack current detection system, a battery pack heat dissipation system and the like are arranged.
In the related art, the battery pack fire extinguishing system includes a controller, a fire extinguishing agent container connected to the controller, a temperature sensor connected to the controller, and a smoke sensor connected to the controller. The temperature sensor and the smoke sensor are arranged in the box body of the battery pack and are respectively used for collecting the temperature and the smoke concentration in the box body of the battery pack. One scheme is that a large fire extinguishing agent container is arranged outside a power battery, the fire extinguishing agent container is connected with a fire extinguishing agent input port embedded in each battery pack box body through a fire extinguishing agent conveying pipeline network, when the controller receives overhigh temperature collected by a temperature sensor and/or overhigh smoke concentration collected by a smoke sensor, the controller opens a fire extinguishing agent valve corresponding to the battery pack and controls the fire extinguishing agent container to release the fire extinguishing agent, and the fire extinguishing agent is sprayed out from the corresponding fire extinguishing agent input port through the fire extinguishing agent conveying pipeline network, so that the purpose of extinguishing the battery pack is achieved. The other scheme is that a smaller fire extinguishing agent container is arranged in each battery pack box, and when the temperature collected by the temperature sensor and/or the smoke concentration collected by the smoke sensor is too high, the controller controls the corresponding fire extinguishing agent container to release the fire extinguishing agent, so that the purpose of extinguishing the fire of the battery pack is achieved.
SUMMERY OF THE UTILITY MODEL
The purpose of this disclosure is to provide a system for battery package is put out a fire and install vehicle of this system to solve the battery package problem of putting out a fire in the use.
To achieve the above object, a first aspect of the present disclosure provides a system for extinguishing a fire of a battery pack, the system comprising: the fire extinguishing system comprises a controller, a plurality of information acquisition devices connected with the controller, and a plurality of fire extinguishing agent containers connected with the controller, wherein the fire extinguishing agent containers are arranged in one-to-one correspondence with a plurality of battery packs in a power battery;
each information acquisition device is respectively arranged in the box body of each battery pack;
each fire extinguishing agent container is arranged outside the box body of each battery pack, and a fire extinguishing agent outlet of each fire extinguishing agent container is connected with a corresponding fire extinguishing agent inlet of each battery pack.
Optionally, the fire extinguishing agent outlet of the fire extinguishing agent container is communicated with the fire extinguishing agent inlet on the battery pack box body through a fire extinguishing agent nozzle.
Optionally, the system still includes fire extinguishing agent shower nozzle and hose, the one end of hose with the fire extinguishing agent delivery outlet intercommunication, the other end of hose passes through the fire extinguishing agent shower nozzle with fire extinguishing agent input port intercommunication on the battery package box.
Optionally, the information collecting device includes: a first temperature sensor; the first temperature sensor is installed on a battery cell in any battery module of the battery pack and used for collecting the temperature of the battery cell.
Optionally, the information collecting apparatus further includes: a second temperature sensor; the second temperature sensor is installed in the box body of the battery pack and used for collecting the environmental temperature of the space in the box body of the battery pack.
Optionally, the information collecting device includes: a light sensor; the optical sensor is installed in the box body of the battery pack and used for collecting optical signals in the box body of the battery pack.
Optionally, the information collecting device includes: an electrolyte leakage monitoring module; the electrolyte leakage monitoring module is arranged in the battery pack box body and used for monitoring whether electrolyte in the battery pack box body leaks or not.
Optionally, the system comprises: an alarm device; the alarm device is electrically connected with the controller and used for sending out information for prompting a driver and passengers that the battery pack has a fault.
Optionally, the system further comprises: a manual switch; the manual switch is electrically connected with the controller and used for manually controlling the system to be started by a driver and passengers.
A second aspect of the present disclosure provides a vehicle comprising a system for fire suppression of a battery pack as claimed in any one of the above.
The technical scheme can at least achieve the following technical effects:
an information acquisition device and a fire extinguishing agent container are arranged aiming at the battery pack, and the information acquisition device and the fire extinguishing agent container are respectively and electrically connected with the controller. Therefore, the controller can independently control fire extinguishing aiming at each battery pack provided with the information acquisition device and the fire extinguishing agent container, and the safety of the vehicle is improved. Furthermore, for the power battery comprising a plurality of battery packs, pipelines for conveying fire extinguishing agents do not need to be arranged among the battery packs, and the fire extinguishing agent container is arranged outside the box body of the battery packs, so that the size of the battery packs under the same energy density is reduced, and the space of a vehicle is saved.
Additional features and advantages of the disclosure will be set forth in the detailed description which follows.
Drawings
The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the description serve to explain the disclosure without limiting the disclosure. In the drawings:
fig. 1 is a block diagram of a system for fire suppression of a battery pack provided in accordance with one embodiment of the present disclosure.
Fig. 2 is a block diagram of a system for fire suppression of a battery pack provided in accordance with another embodiment of the present disclosure.
Fig. 3 is a block diagram of a system for fire suppression of a battery pack provided in accordance with another embodiment of the present disclosure.
Fig. 4 is a block diagram of a system for fire suppression of a battery pack provided in accordance with another embodiment of the present disclosure.
Description of the reference numerals
Controller 101 information acquisition device 102 fire extinguishing agent container 103
Alarm device 104 manual switch 105 box 106
Electrolyte leakage monitoring module 1024
Detailed Description
The following detailed description of specific embodiments of the present disclosure is provided in connection with the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present disclosure, are given by way of illustration and explanation only, not limitation.
In the related art, the fire extinguishing agent container is arranged outside the power battery, a fire extinguishing agent conveying pipeline needs to be arranged, a corresponding fire extinguishing agent valve needs to be arranged, the universality and the interchangeability are low, the arrangement of the fire extinguishing agent conveying pipeline is complex, the space around the power battery is occupied, and the space arrangement cost of a vehicle is increased. The fire extinguisher container is arranged in each battery pack box body, occupies the internal space of the battery pack, and increases the volume of the battery pack under the same energy density.
To solve the above technical problem, the present disclosure provides a system for extinguishing fire of a battery pack, as shown in fig. 1, the system 100 includes: a controller 101, an information acquisition device 102 and a fire extinguishing agent container 103.
The controller 101 is connected to the plurality of information collecting devices 102 and connected to the plurality of fire extinguishing agent containers 103, wherein the plurality of fire extinguishing agent containers 103 are arranged in one-to-one correspondence with the plurality of battery packs in the power battery.
Each of the information collecting devices 102 is disposed in the box 106 of each of the battery packs.
Each fire extinguishing agent container 103 is respectively arranged outside the box body 106 of each battery pack, and a fire extinguishing agent outlet of each fire extinguishing agent container 103 is connected with a corresponding fire extinguishing agent inlet of each battery pack.
In specific implementation, as shown in fig. 1, each of the information acquisition devices 102 is respectively disposed in the box 106 of each battery pack, and the information acquisition device 102 is electrically connected to the controller 101 and is configured to respectively acquire information corresponding to the battery pack box 106, so that a specific battery pack may be determined to have a fault according to the information acquired by the corresponding information acquisition device 102.
Each fire extinguishing agent container 103 is respectively arranged outside the box body 106 of each battery pack, a fire extinguishing agent outlet of each fire extinguishing agent container 103 is connected with a corresponding fire extinguishing agent inlet of each battery pack, and the fire extinguishing agent containers 103 are electrically connected with the controller 101.
The fire extinguishing agent container 103 stores the fire extinguishing agent for extinguishing fire of the battery pack, and when fire is extinguished, the fire extinguishing agent is sprayed out of the fire extinguishing agent container 103, and passes through the fire extinguishing agent outlet of the fire extinguishing agent container 103 to the fire extinguishing agent inlet of the battery pack, so that the battery pack is filled with the fire extinguishing agent, and the effects of isolating air and reducing temperature are achieved.
It is worth noting that the fire extinguishing agent outlet of the fire extinguishing agent container 103 may be threaded with the fire extinguishing agent inlet of the battery pack, without requiring modification of the battery pack inlet, increasing the versatility and interchangeability of the system 100.
In general, the controller 101 may be provided in a BMS (Battery management system) of the vehicle.
Adopt above-mentioned system, set up information acquisition device and fire extinguishing agent container to the battery package, and information acquisition device and fire extinguishing agent container are connected with the controller electricity respectively. Therefore, the controller can independently control fire extinguishing aiming at each battery pack provided with the information acquisition device and the fire extinguishing agent container, and the safety of the vehicle is improved. Furthermore, for the power battery comprising a plurality of battery packs, pipelines for conveying fire extinguishing agents do not need to be arranged among the battery packs, and the fire extinguishing agent container is arranged outside the box body of the battery packs, so that the size of the battery packs under the same energy density is reduced, and the space of a vehicle is saved.
In addition, the system can be applied to a battery pack and a low-voltage storage battery, is used for timely discovering the ignition and timely fire extinguishment of the low-voltage storage battery caused by overlarge current and the like, and improves the safety of vehicles.
In a possible implementation manner, corresponding identification information is preset for each information acquisition device 102 and fire extinguishing agent container 103, and a specific faulty battery pack is determined according to the identification information corresponding to the information acquisition device 102. Thus, the fire extinguishing agent containers 103 having the same identification information can be controlled to discharge the fire extinguishing agent.
Illustratively, the information collecting device 102 of the battery pack No. 1 is a # 1 information collecting device, and the corresponding fire extinguishing agent container 103 is identified as a # 1 fire extinguishing agent container. Further, if the No. 1 battery pack has a fire accident, the No. 1 information acquisition device acquires fault information and sends the fault information to the controller 101, and the controller 101 controls the No. 1 fire extinguishing agent container corresponding to the No. 1 identification information to spray fire extinguishing agent according to the identification information 1# so as to achieve the purpose of extinguishing the fire of the No. 1 battery pack. Like this, this controller can be according to information acquisition device's information, and the fire extinguishing agent container release fire extinguishing agent that control has same sign can improve the accuracy of fire extinguishing agent release.
Optionally, the fire extinguishing agent outlet of the fire extinguishing agent container is communicated with the fire extinguishing agent inlet on the battery pack box body through a fire extinguishing agent nozzle.
The fire extinguishing agent nozzle is arranged at a fire extinguishing agent outlet of the fire extinguishing agent container 103, the fire extinguishing agent nozzle is in threaded connection with the fire extinguishing agent inlet of the battery pack, and a pressure sensor can be additionally arranged on the fire extinguishing agent nozzle and used for monitoring the pressure of the fire extinguishing agent in the fire extinguishing agent container 103. The fire extinguishing agent shower nozzle is used for pressurizing spun fire extinguishing agent, in order to guarantee the fire extinguishing agent can have enough big pressure to be full of whole battery package, and increase suitable pressure, can guarantee fire extinguishing agent spun speed, when the occurence of failure, whole battery package can in time be full of to the fire extinguishing agent, prevent because of fire extinguishing agent pressure is not enough, the blowout is slow, cause more serious accident in the blowout process, and, the distance that the battery package was carried to the fire extinguishing agent shortens on the one hand, the promptness of fire extinguishing agent battery package has been increased, on the other hand, can break down according to which battery package, the control corresponding fire extinguisher container is opened.
Optionally, the system still includes fire extinguishing agent shower nozzle and hose, the one end of hose with the fire extinguishing agent delivery outlet intercommunication, the other end of hose passes through the fire extinguishing agent shower nozzle with fire extinguishing agent input port intercommunication on the battery package box.
And a fire extinguishing agent outlet of the fire extinguishing agent container 103 is communicated with one end of a hose, the other end of the hose is communicated with a fire extinguishing agent inlet on the battery pack box body 106 through a fire extinguishing agent nozzle, and the fire extinguishing agent nozzle is in threaded connection with the fire extinguishing agent inlet of the battery pack. Like this, if the installation space on the battery package box is not enough, the fire extinguishing agent container can be installed in the position of easily overhauing and installing, but the difference with arrange fire extinguishing agent pipeline network in the correlation technique, can save the arrangement space to can be according to which battery package breaks down, the corresponding fire extinguisher container of control is opened.
Fig. 2 is a block diagram of a system for fire suppression of a battery pack provided in accordance with another embodiment of the present disclosure. As shown in fig. 2, the system 200 includes: a controller 101, an information acquisition device 102 and a fire extinguishing agent container 103.
The controller 101 is connected to the plurality of information collecting devices 102 and connected to the plurality of fire extinguishing agent containers 103, wherein the plurality of fire extinguishing agent containers 103 are arranged in one-to-one correspondence with the plurality of battery packs in the power battery.
Each of the information collecting devices 102 is disposed in the box 106 of each of the battery packs.
Each fire extinguishing agent container 103 is respectively arranged outside the box body 106 of each battery pack, and a fire extinguishing agent outlet of each fire extinguishing agent container 103 is connected with a corresponding fire extinguishing agent inlet of each battery pack.
Each information acquisition device 102 is respectively arranged in the box 106 of each battery pack, and the information acquisition devices 102 are electrically connected with the controller 101. The information acquisition apparatus 102 includes: a first temperature sensor 1021, a second temperature sensor 1022, and a light sensor 1023.
The first temperature sensor 1021 is installed on a battery cell in any battery module of the battery pack and used for collecting the temperature of the battery cell. In specific implementation, the first temperature sensor 1021 may be disposed in any battery module of the battery pack, and meanwhile, disposed on any battery cell of the battery module. Each battery pack is correspondingly provided with the first temperature sensor 1021 for respectively acquiring the battery cell temperature in the corresponding battery pack battery module, so that the specific battery pack with the over-high temperature can be determined according to the battery cell temperature acquired by the corresponding first temperature sensor 1021.
The second temperature sensor 1022 is installed in the power battery box and is used for collecting the ambient temperature of the space in the power battery box. In specific implementation, the second temperature sensor 1022 is correspondingly disposed on each battery pack, and is configured to collect the ambient temperature in the corresponding battery pack box 106, so that a specific battery pack box in which the ambient temperature is too high can be determined according to the ambient temperature collected by the corresponding second temperature sensor 1022.
And the optical sensor 1023 is installed in the battery pack power battery box body and used for collecting optical signals of the battery pack in the power battery box body. In specific implementation, the optical sensor 1023 is correspondingly arranged on each battery pack and used for respectively collecting optical signals in the corresponding battery pack box 106, so that a specific battery pack box in which flames are generated can be determined according to the corresponding optical signals collected by the optical sensor 1023.
Optionally, the information collecting device 102 is integrated with any of the following sensors: temperature sensor, light sensor, smoke sensor.
The information acquisition device 102 is installed in the battery pack box 106, and the temperature sensor is used for acquiring the temperature in the battery pack box 106; the optical sensor is used for acquiring optical signals in the battery pack box 106; the smoke sensor is used for collecting the smoke concentration in the battery pack box 106. Therefore, whether the battery pack has a fault or not can be determined according to various information collected by any sensor. Moreover, the information acquisition device 102 is highly integrated, does not occupy a large space in the battery pack case, and is beneficial to improving the energy density of the battery pack.
Each fire extinguishing agent container 103 is respectively arranged outside the box body 106 of each battery pack, a fire extinguishing agent outlet of each fire extinguishing agent container 103 is connected with a corresponding fire extinguishing agent inlet of each battery pack, and the fire extinguishing agent containers 103 are electrically connected with the controller 101.
The fire extinguishing agent container 103 stores the fire extinguishing agent for extinguishing fire of the battery pack, and when fire is extinguished, the fire extinguishing agent is sprayed out of the fire extinguishing agent container 103, and passes through the fire extinguishing agent outlet of the fire extinguishing agent container 103 to the fire extinguishing agent inlet of the battery pack, so that the battery pack is filled with the fire extinguishing agent, and the effects of isolating air and reducing temperature are achieved.
It is worth noting that the fire extinguishing agent outlet of the fire extinguishing agent container 103 may be threaded with the fire extinguishing agent inlet of the battery pack, without modification of the battery pack inlet, increasing the versatility and interchangeability of the system 200.
In general, the controller 101 may be provided in the BMS of the vehicle.
Adopt above-mentioned system, set up information acquisition device and fire extinguishing agent container to the battery package, and information acquisition device and fire extinguishing agent container are connected with the controller electricity respectively. Therefore, the controller can independently control fire extinguishing aiming at each battery pack provided with the information acquisition device and the fire extinguishing agent container, and the safety of the vehicle is improved. Furthermore, for the power battery comprising a plurality of battery packs, pipelines for conveying fire extinguishing agents do not need to be arranged among the battery packs, and the fire extinguishing agent container is arranged outside the box body of the battery packs, so that the size of the battery packs under the same energy density is reduced, and the space of a vehicle is saved. In addition, the sensors with different functions are arranged, so that the potential safety hazard of the battery pack can be accurately determined according to different information, further timely measures are taken, and the safety of the vehicle is improved.
In a possible implementation manner, corresponding identification information is preset for each of the first temperature sensor 1021, the second temperature sensor 1022, the optical sensor 1023 and the fire extinguishing agent container 103, and a specific battery pack with an excessively high temperature is determined according to the identification information of any sensor corresponding to the first temperature sensor 1021, the second temperature sensor 1022 and the optical sensor 1023, or a fire is determined in the battery pack due to light. In this way, the fire extinguishing agent container 103 having the corresponding identification information can be controlled to eject the fire extinguishing agent.
Illustratively, the first temperature sensor 1021 of the battery pack No. 1 is a # 1 first temperature sensor, the corresponding second temperature sensor 1022 is identified as a # 1 second temperature sensor, the optical sensor 1023 is identified as a # 1 optical sensor, and the fire extinguishing agent container 103 is identified as a # 1 fire extinguishing agent container. Further, if the battery core temperature of the battery pack No. 1 is too high, the battery core temperature is acquired by the first temperature sensor No. 1, and the controller 101 decodes and analyzes the battery core temperature to determine that the battery core temperature is too high; or if the temperature in the 1# battery pack box is too high, the 1# second temperature sensor collects the ambient temperature in the battery pack box, and the controller 101 decodes and analyzes the ambient temperature to determine that the ambient temperature in the battery pack box is too high; or if the 1# battery pack has a fire accident, the 1# optical sensor collects an optical signal in the battery pack, the controller 101 decodes and analyzes the optical signal to determine that fire is generated in the battery pack box, and the controller 101 controls the 1# fire extinguishing agent container corresponding to the 1# identification information to spray fire extinguishing agent according to the identification information 1# so as to achieve the purposes of cooling and extinguishing the fire of the 1# battery pack. Therefore, the controller can check the accuracy of the information with the same identification according to the information collected by the sensor, and control the fire extinguishing agent container with the same identification to release the fire extinguishing agent, so that the accuracy of the release of the fire extinguishing agent can be improved.
Fig. 3 is a block diagram of a system for fire suppression of a battery pack provided in accordance with another embodiment of the present disclosure. As shown in fig. 3, the system 300 includes: a controller 101, an information acquisition device 102 and a fire extinguishing agent container 103.
The controller 101 is connected to the plurality of information collecting devices 102 and connected to the plurality of fire extinguishing agent containers 103, wherein the plurality of fire extinguishing agent containers 103 are arranged in one-to-one correspondence with the plurality of battery packs in the power battery.
Each of the information collecting devices 102 is disposed in the box 106 of each of the battery packs.
Each fire extinguishing agent container 103 is respectively arranged outside the box body 106 of each battery pack, and a fire extinguishing agent outlet of each fire extinguishing agent container 103 is connected with a corresponding fire extinguishing agent inlet of each battery pack.
Each information acquisition device 102 is respectively arranged in the box 106 of each battery pack, the information acquisition device 102 is electrically connected with the controller 101, and the information acquisition device 102 comprises: electrolyte leakage monitoring module 1024.
Each electrolyte leakage monitoring module 1024 is installed in each battery pack case 106, electrically connected to the controller 101, and configured to monitor whether electrolyte in the battery pack case 106 leaks.
When the battery pack leakage monitoring module 1024 is arranged in each battery pack, the electrolyte leakage monitoring module is used for monitoring whether electrolyte in the battery pack box body leaks or not, and therefore whether the electrolyte in the battery pack leaks or not can be monitored according to the electrolyte leakage monitoring module 1024, and specific electrolyte leakage of the battery pack is determined.
Each fire extinguishing agent container 103 is respectively arranged outside the box body 106 of each battery pack, a fire extinguishing agent outlet of each fire extinguishing agent container 103 is connected with a corresponding fire extinguishing agent inlet of each battery pack, and the fire extinguishing agent containers 103 are electrically connected with the controller 101.
The fire extinguishing agent container 103 stores the fire extinguishing agent for extinguishing fire of the battery pack, when electrolyte leaks, the fire extinguishing agent is sprayed out of the fire extinguishing agent container 103, and the fire extinguishing agent outlet of the fire extinguishing agent container 103 reaches the fire extinguishing agent inlet of the battery pack, so that the battery pack is filled with the fire extinguishing agent, and the effect of isolating the electrolyte is achieved.
It is worth noting that the fire extinguishing agent outlet of the fire extinguishing agent container 103 may be threaded with the fire extinguishing agent inlet of the battery pack, without modification of the battery pack inlet, increasing the versatility and interchangeability of the system 300.
In general, the controller 101 may be provided in the BMS of the vehicle.
Adopt above-mentioned system, set up information acquisition device and fire extinguishing agent container to the battery package, and information acquisition device and fire extinguishing agent container are connected with the controller electricity respectively. Therefore, the controller can independently control fire extinguishing aiming at each battery pack provided with the information acquisition device and the fire extinguishing agent container, and the safety of the vehicle is improved. Furthermore, for the power battery comprising a plurality of battery packs, pipelines for conveying fire extinguishing agents do not need to be arranged among the battery packs, and the fire extinguishing agent container is arranged outside the box body of the battery packs, so that the size of the battery packs under the same energy density is reduced, and the space of a vehicle is saved. In addition, the electrolyte leakage monitoring module is arranged, so that potential safety hazards of the battery pack can be determined in time according to whether electrolyte exists in the box body, further timely measures are taken, and the safety of a vehicle is improved.
In a possible implementation manner, corresponding identification information is preset for each electrolyte leakage monitoring module 1024 and the fire extinguishing agent container 103, and electrolyte leakage of the battery pack is monitored according to the corresponding electrolyte leakage monitoring module 1024, and it is determined that the battery pack has a fault and is likely to cause fire. Thus, the fire extinguishing agent container 103 with the corresponding identification information can be controlled to spray the fire extinguishing agent to isolate the electrolyte so as to prevent the electrolyte from contacting with air to cause fire or contacting with other battery cells to damage the other battery cells.
Illustratively, the electrolyte leakage monitoring module 1024 of the No. 1 battery pack is a # 1 electrolyte leakage monitoring module, and the corresponding fire extinguishing agent container 103 is identified as a # 1 fire extinguishing agent container. Furthermore, if electrolyte leakage occurs in the No. 1 battery pack, the No. 1 electrolyte leakage monitoring module monitors that electrolyte substances exist in the battery pack box, the controller 101 determines the electrolyte leakage of the battery pack through decoding and analysis, controls the No. 1 fire extinguishing agent container corresponding to the No. 1 identification information to spray fire extinguishing agent, isolates the electrolyte, and achieves the purpose of protecting the No. 1 battery pack. Like this, this controller can be according to electrolyte leakage monitoring module's information, and the fire extinguishing agent container release fire extinguishing agent that control has same sign can improve the accuracy of fire extinguishing agent release.
Fig. 4 is a block diagram of a system for fire suppression of a battery pack provided in accordance with another embodiment of the present disclosure. As shown in fig. 4, the system 400 includes: a controller 101, an information acquisition device 102, a fire extinguishing agent container 103, an alarm device 104 and a manual switch 105.
The controller 101 is connected to the plurality of information collecting devices 102 and connected to the plurality of fire extinguishing agent containers 103, wherein the plurality of fire extinguishing agent containers 103 are arranged in one-to-one correspondence with the plurality of battery packs in the power battery.
Each of the information collecting devices 102 is disposed in the box 106 of each of the battery packs.
Each fire extinguishing agent container 103 is respectively arranged outside the box body 106 of each battery pack, and a fire extinguishing agent outlet of each fire extinguishing agent container 103 is connected with a corresponding fire extinguishing agent inlet of each battery pack.
Each information acquisition device 102 is respectively arranged in the box 106 of each battery pack, and the information acquisition devices 102 are electrically connected with the controller 101. The information acquisition apparatus 102 includes: a first temperature sensor 1021, a second temperature sensor 1022, a light sensor 1023, and an electrolyte leakage monitoring module 1024.
The first temperature sensor 1021 is installed on a battery cell in any battery module of the power battery pack and used for collecting the temperature of the battery cell. In specific implementation, the first temperature sensor 1021 may be disposed in any battery module of the power battery pack, and meanwhile, disposed on any battery cell of the battery module. Each power battery pack is correspondingly provided with the first temperature sensor 1021 for respectively acquiring the battery cell temperature of the power battery pack battery module, so that a specific power battery pack is found and determined according to the battery cell temperature acquired by the corresponding first temperature sensor 1021.
The second temperature sensor 1022 is installed in the power battery box and is used for collecting the ambient temperature of the space in the power battery box. In specific implementation, the second temperature sensor 1022 is correspondingly disposed on each battery pack, and is configured to collect the ambient temperature in the corresponding battery pack box 106, so that a specific battery pack box in which the ambient temperature is too high can be determined according to the ambient temperature collected by the corresponding second temperature sensor 1022.
And the optical sensor 1023 is installed in the battery pack power battery box body and used for collecting optical signals of the power battery of the battery pack. In specific implementation, the optical sensor 1023 is correspondingly arranged on each battery pack and used for respectively collecting optical signals in the corresponding battery pack box 106, so that a specific battery pack box in which flames are generated can be determined according to the corresponding optical signals collected by the optical sensor 1023.
The electrolyte leakage monitoring module 1024 is installed in the battery pack power battery pack box 106, electrically connected to the controller 101, and configured to monitor whether electrolyte in the battery pack power battery pack box 106 leaks. When the power battery pack is specifically implemented, the electrolyte leakage monitoring modules 1024 are correspondingly arranged on each power battery pack and used for respectively monitoring whether electrolyte in the box body of the power battery pack of the battery pack leaks, so that whether electrolyte in the power battery pack leaks can be monitored according to the corresponding electrolyte leakage monitoring modules 1024, and the electrolyte leakage of the specific power battery pack is determined.
Each fire extinguishing agent container 103 is respectively arranged outside the box body 106 of each battery pack, a fire extinguishing agent outlet of each fire extinguishing agent container 103 is connected with a corresponding fire extinguishing agent inlet of each battery pack, and the fire extinguishing agent containers 103 are electrically connected with the controller 101.
The fire extinguishing agent container 103 stores the fire extinguishing agent that is used for the battery package to put out a fire, gathers the high temperature at the sensor, perhaps gathers light signal, perhaps when electrolyte leaks, the fire extinguishing agent is followed spout in the fire extinguishing agent container 103, the warp the fire extinguishing agent delivery outlet of fire extinguishing agent container 103 arrives the fire extinguishing agent input port of battery package, and then be full of wholly the battery package reaches isolated air, functions such as reduce temperature.
It is worth noting that the fire suppressant outlet of the fire suppressant container 103 may be threadably connected to the fire suppressant inlet of the battery pack, without requiring modification of the battery pack inlet, increasing the versatility and interchangeability of the system 400.
In general, the controller 101 may be provided in the BMS of the vehicle.
Adopt above-mentioned system, set up information acquisition device and fire extinguishing agent container to the battery package, and information acquisition device and fire extinguishing agent container are connected with the controller electricity respectively. Therefore, the controller can independently control fire extinguishing aiming at each battery pack provided with the information acquisition device and the fire extinguishing agent container, and the safety of the vehicle is improved. Furthermore, for the power battery comprising a plurality of battery packs, pipelines for conveying fire extinguishing agents do not need to be arranged among the battery packs, and the fire extinguishing agent container is arranged outside the box body of the battery packs, so that the size of the battery packs under the same energy density is reduced, and the space of a vehicle is saved. In addition, the sensors with different functions are arranged, so that potential safety hazards of the battery pack can be determined in time according to different information, further timely measures are taken, and the safety of the vehicle is improved.
In a possible implementation manner, corresponding identification information is preset in each of the first temperature sensor 1021, the second temperature sensor 1022, the optical sensor 1023, the electrolyte leakage monitoring module 1024 and the fire extinguishing agent container 103, and according to the identification information corresponding to the first temperature sensor 1021, the second temperature sensor 1022 and the optical sensor 1023, a specific battery pack with an excessively high temperature is determined, or light is present in the battery pack, so that the battery pack is determined to be on fire, or according to the corresponding electrolyte leakage monitoring module 1024, electrolyte leakage of the battery pack is monitored, so that the battery pack is determined to be in fault, and fire is possibly caused. Therefore, the controller can check the accuracy of the information with the same identification according to the information collected by the sensor, and control the fire extinguishing agent container with the same identification to release the fire extinguishing agent, so that the accuracy of the release of the fire extinguishing agent can be improved.
The alarm device 104 is electrically connected with the controller 101 and is used for sending out information for prompting a driver and passengers that the battery pack has a fault.
Optionally, the alarm device 104 is electrically connected with the controller 101, and CAN be connected by a wire or a CAN bus, and CAN communicate with the controller 101 via the CAN bus, so that the controller 101 and the alarm device 104 are respectively connected with the CAN bus and send and receive the alarm information via the CAN bus.
Optionally, the information for sending out the information for prompting the driver and the crew that the battery pack is in failure may be different alarm lights according to different alarm contents. For example, the battery cell with too high temperature may emit red alarm light, the battery pack box with too high temperature may emit orange alarm light, and the battery pack electrolyte leakage may emit blue alarm light. Or directly sending out voice alarm according to different alarm contents.
Alternatively, the alarm device 104 may be disposed in a combination meter of the vehicle, or may be disposed in a multimedia player of the vehicle, so that the space occupied by the cab can be avoided, and the prompt for the driver and the passenger is facilitated.
Optionally, the controller 101 is electrically connected to a T-BOX (Telematics BOX) of the vehicle, and sends an alarm information report to a vehicle networking platform through the T-BOX of the vehicle. So that the management department can know the safety state of the vehicle in time.
The manual switch 105 is electrically connected with the controller 101 and is used for manually controlling the system to be turned on by a driver and an occupant.
The manual switch may be a rocker switch provided at a center console panel of a cab of the vehicle, or may be a manual switch provided beside the BMS. When a sensor fails or a line fails or other abnormal conditions occur, the system 400 cannot find the failure of the battery pack in time, and a driver and passengers can manually start the system according to actual conditions.
Adopt above-mentioned system, set up information acquisition device and fire extinguishing agent container to the battery package, and information acquisition device and fire extinguishing agent container are connected with the controller electricity respectively. Therefore, the controller can independently control fire extinguishing aiming at each battery pack provided with the information acquisition device and the fire extinguishing agent container, and the safety of the vehicle is improved. Furthermore, for the power battery comprising a plurality of battery packs, pipelines for conveying fire extinguishing agents do not need to be arranged among the battery packs, and the fire extinguishing agent container is arranged outside the box body of the battery packs, so that the size of the battery packs under the same energy density is reduced, and the space of a vehicle is saved. In addition, the sensors with different functions are arranged, so that potential safety hazards of the battery pack can be determined in time according to different information, further timely measures are taken, and the safety of the vehicle is improved.
In addition, the alarm device can prompt the fault of the battery pack for the driver and the passenger so that the driver and the passenger can know the state of the battery pack in time. When the system cannot be automatically started due to faults of sensors, circuits and the like, a driver and passengers can manually start the system according to actual needs, so that the safety of the battery pack is ensured, and the safety of vehicles is improved.
The disclosed embodiment further provides a vehicle, which includes the system for extinguishing a fire of a battery pack provided in any one of the above embodiments, and specific reference may be made to the above description of fig. 1 to 4, and details are not repeated here.
The preferred embodiments of the present disclosure are described in detail with reference to the accompanying drawings, however, the present disclosure is not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solution of the present disclosure within the technical idea of the present disclosure, and these simple modifications all belong to the protection scope of the present disclosure.
It should be noted that, in the foregoing embodiments, various features described in the above embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, various combinations that are possible in the present disclosure are not described again.
In addition, any combination of various embodiments of the present disclosure may be made, and the same should be considered as the disclosure of the present disclosure, as long as it does not depart from the spirit of the present disclosure.
Claims (10)
1. A system for fire suppression of a battery pack, the system comprising: the fire extinguishing system comprises a controller (101), a plurality of information acquisition devices (102) connected with the controller (101), and a plurality of fire extinguishing agent containers (103) connected with the controller (101), wherein the fire extinguishing agent containers (103) are arranged in one-to-one correspondence with a plurality of battery packs in a power battery;
each information acquisition device (102) is respectively arranged in the box body (106) of each battery pack;
each fire extinguishing agent container (103) is arranged outside the box body (106) of each battery pack, and a fire extinguishing agent outlet of each fire extinguishing agent container (103) is connected with a corresponding fire extinguishing agent inlet of each battery pack.
2. The system of claim 1, wherein the fire suppressant outlet of the fire suppressant container (103) is in communication with the fire suppressant inlet on the battery pack case (106) through a fire suppressant spray head.
3. The system of claim 1, further comprising a fire suppressant nozzle and a hose, one end of the hose being in communication with the fire suppressant outlet, the other end of the hose being in communication with the fire suppressant inlet on the battery pack case (106) through the fire suppressant nozzle.
4. The system according to claim 1, wherein the information acquisition device (102) comprises: a first temperature sensor (1021);
the first temperature sensor (1021) is installed on a battery cell in any battery module of the battery pack and used for collecting the temperature of the battery cell.
5. The system according to claim 4, wherein the information collecting means (102) further comprises: a second temperature sensor (1022);
the second temperature sensor (1022) is installed in the box body (106) of the battery pack and used for collecting the ambient temperature of the space of the box body (106) of the battery pack.
6. The system according to claim 5, wherein the information acquisition device (102) comprises: a light sensor (1023);
the light sensor (1023) is arranged in the box body (106) of the battery pack and used for collecting light signals in the box body (106) of the battery pack.
7. The system according to claim 1, wherein the information acquisition device (102) comprises: an electrolyte leakage monitoring module (1024);
the electrolyte leakage monitoring module (1024) is installed in the battery pack box body (106) and used for monitoring whether electrolyte in the battery pack box body (106) leaks or not.
8. The system according to any one of claims 1-7, characterized in that the system comprises: an alarm device (104);
the alarm device (104) is electrically connected with the controller (101) and is used for sending out information for prompting a driver and passengers that the battery pack has a fault.
9. The system of claim 8, further comprising: a manual switch (105);
the manual switch (105) is electrically connected with the controller (101) and is used for manually controlling the system to be turned on by a driver and passengers.
10. A vehicle, characterized in that it comprises a system for battery pack fire extinguishing according to any one of claims 1-9.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921407078.XU CN211675968U (en) | 2019-08-27 | 2019-08-27 | System for be used for battery package to put out a fire and install vehicle of this system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921407078.XU CN211675968U (en) | 2019-08-27 | 2019-08-27 | System for be used for battery package to put out a fire and install vehicle of this system |
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| CN211675968U true CN211675968U (en) | 2020-10-16 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113192299A (en) * | 2021-04-29 | 2021-07-30 | 深圳供电局有限公司 | Vehicle-mounted storage battery monitoring device and monitoring method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113192299A (en) * | 2021-04-29 | 2021-07-30 | 深圳供电局有限公司 | Vehicle-mounted storage battery monitoring device and monitoring method thereof |
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