CN210302126U - Automatic fire extinguishing system for lithium ion battery box - Google Patents
Automatic fire extinguishing system for lithium ion battery box Download PDFInfo
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- CN210302126U CN210302126U CN201920984425.9U CN201920984425U CN210302126U CN 210302126 U CN210302126 U CN 210302126U CN 201920984425 U CN201920984425 U CN 201920984425U CN 210302126 U CN210302126 U CN 210302126U
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Abstract
The utility model discloses a lithium ion battery box automatic fire extinguishing system surveys the temperature through the temperature sensing cable, through the power device promotion piston in the controller start-up lower end cover, and when the piston promoted fire extinguishing agent, fire extinguishing agent directly broke through the seal membrane and get into the hose, finally gets into the battery box from the nozzle, puts out a fire to the battery. The connecting device is connected in a threaded connection mode, can be detached, and is simple in structure, modular in design and convenient to install in a matched mode. The normal-pressure storage of the fire extinguishing agent can be realized by matching the piston, the power device and the tank body, and the power device is used as a power source; compared with the prior art, the safety is higher. The system can be connected with various detectors to work as follows: smoke detection, temperature detection, combustible gas detection and the like are used in a matched manner, so that the device is safer and more reliable; the controller can also directly communicate with a battery management system and the like for control, thereby realizing the functions of fire detection, fire extinguishing, sound-light alarm, state detection and the like.
Description
Technical Field
The utility model relates to an electric motor car technical field, concretely relates to lithium ion battery box automatic fire extinguishing system.
Background
With the rapid development of economy and industry in China, the production and sale of new energy electric automobiles are increased explosively. The rapid increase of the retention amount is accompanied by factors such as aging of the lithium ion battery, and a plurality of lithium ion battery fire accidents occur. The attention on the fire extinguishing of the lithium ion battery is attracted. It is urgently needed to introduce a fire extinguishing system with extremely high safety and reliability to ensure the fire safety. At present, the traditional domestic fire extinguishing system mainly takes dry powder, aerosol, carbon dioxide and other media as fire extinguishing agents, and cannot meet the fire extinguishing work of a lithium ion battery due to the poor fire extinguishing effect, the incapability of preventing re-combustion, environmental pollution and the like; the system cannot communicate with a battery management system and cannot monitor in real time. The dry powder and the carbon dioxide are stored under pressure and are a dangerous source, the temperature of a nozzle of the aerosol is very high when the aerosol acts, the pencil full of oil stains can be ignited, and the carbon dioxide and the aerosol require a relatively sealed use environment; therefore, a new fire suppression system is needed to solve the above problems.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, an object of the utility model is to provide a lithium ion battery box automatic fire extinguishing system surveys the temperature through the temperature sensing cable, through the power device promotion piston in the controller start-up lower end cover, and when the piston promoted fire extinguishing agent, the fire extinguishing agent directly broke through the seal membrane and gets into the hose, finally gets into the battery box from the nozzle, puts out a fire to the battery.
The utility model discloses the technical problem who solves does:
(1) how to improve the fire extinguishing effect of the fire extinguishing system, prevent the after combustion and have no pollution to the environment.
(2) How to improve the safety of the fire extinguishing system and improve the expansibility of the fire extinguishing system.
The purpose of the utility model can be realized by the following technical scheme:
the utility model provides a lithium ion battery box automatic fire extinguishing system, includes battery box, nozzle, hose, through joint, jar of extinguishing fire, a serial communication port, nozzle fixed connection is on the battery box, and the inside intercommunication of nozzle and battery box, the fixed intercommunication of one end of nozzle and hose, the fixed intercommunication of the other end of hose has the one end of through joint, the other end of through joint and the fixed intercommunication in inside of jar of extinguishing fire, jar fixed connection is at the battery box lateral wall of extinguishing fire, inner chamber and control storehouse have been seted up to the inside of jar of extinguishing fire, and the inner chamber intercommunication of through joint and jar of extinguishing fire, and the storage has the fire extinguishing agent in the inner chamber of jar of extinguishing fire, fixedly connected with controller in the control storehouse of jar of extinguishing fire, controller electric connection has temperature sensing cable, alarm, battery management system respectively.
Further, the jar of putting out a fire includes a jar body, the inner chamber is located at a jar body, the upper end cover is installed to a tip of jar body, and the lower extreme cover is installed to another tip, the control storehouse is located the lower extreme cover, sliding connection has the piston in the inner chamber, piston fixed connection is at power device's output, and power device fixed connection in the control storehouse, fire extinguishing agent storage is in the inner chamber between piston and the upper extreme cover, direct joint fixed connection at the upper extreme cover and with the inner chamber intercommunication.
Further, the controller is provided with an input serial port and an output serial port, wherein the input serial port is electrically connected with the temperature sensing cable, and the output serial port is electrically connected with the power device.
Furthermore, the tank body is connected with the upper end cover and the lower end cover through threads.
Furthermore, the input serial ports of the controller are provided with a plurality of serial ports, and the input serial ports are electrically connected with the smoke detectors, the temperature detectors and the combustible gas detectors in a one-to-one correspondence mode.
Furthermore, the fire extinguishing agent is a perfluorohexanone fire extinguishing agent, and a layer of sealing film is arranged between the fire extinguishing agent and the straight pipe.
The utility model has the advantages that:
1) the connecting device is connected in a threaded connection mode, can be detached, and is simple in structure, modular in design and convenient to install in a matched mode.
2) The normal-pressure storage of the fire extinguishing agent can be realized by matching the piston, the power device and the tank body, and the power device is used as a power source; compared with the prior art, the safety is higher.
3) The system can be connected with various detectors to work as follows: smoke detection, temperature detection, combustible gas detection and the like are mutually matched for use, so that the device is safer and more reliable.
4) The controller can also directly communicate with a battery management system and the like for control, thereby realizing the functions of fire detection, fire extinguishing, sound-light alarm, state detection and the like.
Drawings
The present invention will be further described with reference to the accompanying drawings.
Fig. 1 is a schematic view of the installation position of the present invention;
fig. 2 is a schematic structural diagram of the present invention;
figure 3 is a schematic structural view of the fire extinguishing pot of the present invention.
In the figure: the device comprises a battery box 1, a nozzle 2, a hose 3, a straight joint 4, a fire extinguishing tank 5, a tank body 6, an upper end cover 7, a lower end cover 8, a piston 9 and a power device 10.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.
Referring to fig. 1-3, the present embodiment provides an automatic fire extinguishing system for a lithium ion battery box 1, including a battery box 1, a nozzle 2, a hose 3, a through joint 4, and a fire extinguishing tank 5, wherein the nozzle 2 is fixedly connected to the battery box 1, the nozzle 2 is communicated with the inside of the battery box 1, the nozzle 2 is fixedly communicated with one end of the hose 3, the other end of the hose 3 is fixedly communicated with one end of the through joint 4, the other end of the through joint 4 is fixedly communicated with the inside of the fire extinguishing tank 5, the fire extinguishing tank 5 is fixedly connected to the outer side wall of the battery box 1, an inner cavity and a control cabin are formed in the fire extinguishing tank 5, the through joint 4 is communicated with the inner cavity of the fire extinguishing tank 5, a fire extinguishing agent is stored in the inner cavity of the fire extinguishing tank 5, a controller is fixedly connected to the control cabin of the fire extinguishing tank 5, and the controller is electrically connected to a temperature sensing cable, a, Alarm, battery management system.
The controller is provided with an input serial port and an output serial port, wherein the input serial port is electrically connected with the temperature sensing cable, and the output serial port is electrically connected with the power device 10.
The input serial ports of controller have a plurality of, have four if, just input serial ports still one-to-one correspondence electric connection has the smoke detector who is used for detecting smog in the battery box 1, is used for detecting the temperature detector of 5 temperatures of jar of putting out a fire, is used for detecting the combustible gas detector of 1 interior gas concentration of battery box.
The type of the power device 10 is XSC-QD-1, the type of the controller is XSC-KZ-2, the battery management system is ABMS-EV03, the controller is communicated with the battery management system BMS through a CAN bus to collect the temperature and abnormal data of each battery pack in the BMS in real time, and when the temperature is abnormal, the power device 10 is started through the controller to conduct fire extinguishing operation.
The temperature sensing cable is used for measuring the temperature of the battery and is arranged around the battery in an S shape close to the surface of the battery. The other end of the temperature sensing cable is connected to the controller to detect electric shock, the temperature state of the current cable can be transmitted to the controller in real time, the combustible gas detector detects the concentration in the battery box 1, when the concentration reaches the concentration safety limit critical value of 190ppm, the alarm gives an alarm, and the alarm is a sound-light composite alarm.
The fire extinguishing tank 5 comprises a tank body, the inner cavity is located at the tank body, an upper end cover 7 is installed at one end of the tank body, a lower end cover 8 is installed at the other end, a control cabin is located at the lower end cover 8, a piston 9 is slidably connected to the inner cavity, the piston 9 is fixedly connected to the output end of a power device 10, the power device 10 is fixedly connected to the control cabin, a fire extinguishing agent is stored in the inner cavity between the piston 9 and the upper end cover 7, and a direct joint 4 is fixedly connected to the upper end cover 7 and communicated with the inner cavity.
The tank body is connected with the upper end cover 7 and the lower end cover 8 through threads.
The fire extinguishing agent is perfluorohexanone fire extinguishing agent, and a layer of sealing film is arranged between the fire extinguishing agent and the straight pipe. The material has the characteristics of environmental protection, no corrosion, automatic decomposition, re-combustion prevention, 110KV high-voltage non-conduction and the like.
The specific working process of this embodiment is as follows:
all electronic devices in the fire extinguishing tank 5 are electrically connected with an external power supply; detect the temperature through the temperature sensing cable, after the controller acquireed the lithium cell temperature, whether by controller control power device 10 start, start power device 10 and can promote piston 9, when piston 9 promoted fire extinguishing agent, fire extinguishing agent directly broke through the seal membrane and gets into hose 3, finally gets into battery box 1 from nozzle 2, puts out a fire to the lithium cell.
The foregoing is merely exemplary and illustrative of the structure of the invention, and various modifications, additions and substitutions as described in the detailed description may be made by those skilled in the art without departing from the structure or exceeding the scope of the invention as defined in the claims.
Claims (6)
1. The utility model provides a lithium ion battery box automatic fire extinguishing system, includes battery box, nozzle, hose, through joint, jar of extinguishing fire, a serial communication port, nozzle fixed connection is on the battery box, and the inside intercommunication of nozzle and battery box, the fixed intercommunication of one end of nozzle and hose, the fixed intercommunication of the other end of hose has the one end of through joint, the other end of through joint and the fixed intercommunication in inside of jar of extinguishing fire, jar fixed connection is at the battery box lateral wall of extinguishing fire, inner chamber and control storehouse have been seted up to the inside of jar of extinguishing fire, and the inner chamber intercommunication of through joint and jar of extinguishing fire, and the storage has the fire extinguishing agent in the inner chamber of jar of extinguishing fire, fixedly connected with controller in the control storehouse of jar of extinguishing fire, controller electric connection has temperature sensing cable, alarm, battery management system respectively.
2. The lithium ion battery box automatic fire extinguishing system according to claim 1, wherein the fire extinguishing tank comprises a tank body, the inner cavity is located in the tank body, an upper end cover is installed at one end of the tank body, a lower end cover is installed at the other end of the tank body, the control cabin is located at the lower end cover, a piston is connected in the inner cavity in a sliding mode, the piston is fixedly connected to the output end of the power device, the power device is fixedly connected in the control cabin, the fire extinguishing agent is stored in the inner cavity between the piston and the upper end cover, and the through connector is fixedly connected to the upper end cover and communicated with the inner cavity.
3. The automatic fire extinguishing system for the lithium ion battery box according to claim 1, wherein the controller is provided with an input serial port and an output serial port, wherein the input serial port is electrically connected with the temperature sensing cable, and the output serial port is electrically connected with the power device.
4. The lithium ion battery box automatic fire extinguishing system according to claim 2, wherein the tank body is in threaded connection with the upper end cover and the lower end cover.
5. The automatic fire extinguishing system for the lithium ion battery box according to claim 3, wherein a plurality of serial ports of the input end of the controller are provided, and the serial ports of the input end are electrically connected with a smoke detector, a temperature detector and a combustible gas detector in a one-to-one correspondence manner.
6. The lithium ion battery box automatic fire extinguishing system according to claim 1, wherein the fire extinguishing agent is perfluorohexanone fire extinguishing agent, and a sealing film is arranged between the fire extinguishing agent and the through hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920984425.9U CN210302126U (en) | 2019-06-27 | 2019-06-27 | Automatic fire extinguishing system for lithium ion battery box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920984425.9U CN210302126U (en) | 2019-06-27 | 2019-06-27 | Automatic fire extinguishing system for lithium ion battery box |
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| CN210302126U true CN210302126U (en) | 2020-04-14 |
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| CN201920984425.9U Active CN210302126U (en) | 2019-06-27 | 2019-06-27 | Automatic fire extinguishing system for lithium ion battery box |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111589020A (en) * | 2020-05-28 | 2020-08-28 | 航天康达(北京)科技发展有限公司 | Perfluorohexanone quick fire extinguishing device and fire extinguishing system |
-
2019
- 2019-06-27 CN CN201920984425.9U patent/CN210302126U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111589020A (en) * | 2020-05-28 | 2020-08-28 | 航天康达(北京)科技发展有限公司 | Perfluorohexanone quick fire extinguishing device and fire extinguishing system |
| CN111589020B (en) * | 2020-05-28 | 2022-03-04 | 航天康达(北京)科技发展有限公司 | Perfluorohexanone quick fire extinguishing device and fire extinguishing system |
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