CN114949679A - Fire-fighting triggering device and method - Google Patents

Fire-fighting triggering device and method Download PDF

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Publication number
CN114949679A
CN114949679A CN202210607061.9A CN202210607061A CN114949679A CN 114949679 A CN114949679 A CN 114949679A CN 202210607061 A CN202210607061 A CN 202210607061A CN 114949679 A CN114949679 A CN 114949679A
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China
Prior art keywords
gas generator
fire
battery pack
environmental parameter
secondary gas
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Pending
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CN202210607061.9A
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Chinese (zh)
Inventor
陈昌
杨世鹏
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Ssd Technology Co ltd
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Ssd Technology Co ltd
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Priority to CN202210607061.9A priority Critical patent/CN114949679A/en
Publication of CN114949679A publication Critical patent/CN114949679A/en
Pending legal-status Critical Current

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    • AHUMAN NECESSITIES
    • A62LIFE-SAVING; FIRE-FIGHTING
    • A62CFIRE-FIGHTING
    • A62C3/00Fire prevention, containment or extinguishing specially adapted for particular objects or places
    • A62C3/16Fire prevention, containment or extinguishing specially adapted for particular objects or places in electrical installations, e.g. cableways
    • AHUMAN NECESSITIES
    • A62LIFE-SAVING; FIRE-FIGHTING
    • A62CFIRE-FIGHTING
    • A62C37/00Control of fire-fighting equipment
    • A62C37/08Control of fire-fighting equipment comprising an outlet device containing a sensor, or itself being the sensor, i.e. self-contained sprinklers
    • A62C37/10Releasing means, e.g. electrically released
    • A62C37/11Releasing means, e.g. electrically released heat-sensitive
    • A62C37/14Releasing means, e.g. electrically released heat-sensitive with frangible vessels
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10Energy storage using batteries

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  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Battery Mounting, Suspending (AREA)

Abstract

The invention relates to a fire-fighting triggering device and a method, wherein the fire-fighting triggering device comprises a detection sensor for detecting environmental parameters of a battery pack, wherein the environmental parameters comprise smoke concentration and temperature; the primary gas generator is used for releasing fire extinguishing substances when the environmental parameter exceeds a first threshold value, and is electrically connected with the detection sensor through a controller; a secondary gas generator for releasing a fire suppressing substance when the environmental parameter exceeds a second threshold value, the second threshold value being greater than the first threshold value, wherein the secondary gas generator is associated with a drive component. The invention has the effect of cooling and extinguishing fire for the battery pack in time.

Description

Fire-fighting triggering device and method
Technical Field
The invention relates to the technical field of fire fighting, in particular to a fire fighting triggering device and method.
Background
The ignition of the battery pack is essentially that heat inside the battery pack is not released according to the design purpose, so that the heat inside the battery pack is accumulated more and more, the temperature inside the battery pack is gradually increased, and when the temperature inside the battery pack reaches the ignition point of a combustion object inside the battery pack, the battery pack can generate a self-ignition condition.
When the battery pack is ignited, the battery pack starts from the inside of the battery pack, and the battery pack is wrapped by the shell and is difficult to detect, so that when the battery pack is generally ignited, the general fire intensity is larger, for example, when an automobile fires due to a traffic accident or damage of the battery pack caused by external force, the automobile can turn into ash within a few minutes, and when the battery pack fires, the dry powder fire extinguisher cannot be sprayed into the inside of the battery pack due to protection of the shell.
The above prior art solutions have the following drawbacks: when the battery pack finds spontaneous combustion, the battery pack cannot be timely noticed, so that the battery pack cannot be timely extinguished and cooled.
Disclosure of Invention
The invention aims to provide a fire-fighting trigger device which has the characteristics of timely cooling and extinguishing a fire for a battery pack.
The above object of the present invention is achieved by the following technical solutions:
a fire control triggering device comprising:
the detection sensor is used for detecting environmental parameters of the battery pack, wherein the environmental parameters comprise smoke concentration and temperature;
the primary gas generator is used for releasing fire extinguishing substances when the environmental parameter exceeds a first threshold value, and is electrically connected with the detection sensor through a controller;
a secondary gas generator for releasing a fire suppressing substance when the environmental parameter exceeds a second threshold value, the second threshold value being greater than the first threshold value, wherein the secondary gas generator is associated with a drive component.
Through adopting above-mentioned technical scheme, when the battery package appeared the spontaneous combustion, smog concentration can rise gradually in the internal environment of battery package, and simultaneously inside temperature also can rise gradually, when smog concentration and temperature one of them surpassed first threshold value, all can regard as the battery package to take place the spontaneous combustion or be about to the spontaneous combustion, and one-level gas generator releases the fire extinguishing substance this moment, and the fire extinguishing substance can extinguish the inside fire of battery package, also can make the outside temperature that reduces the battery package.
When the fire extinguishing substance released by the primary gas generator does not control the fire of the battery pack, the smoke concentration and the temperature in the environment where the battery pack is located can be continuously increased, and when any one of the smoke concentration and the temperature reaches a second threshold value, the secondary gas generator releases the fire extinguishing substance under the control of the driving part to perform secondary fire extinguishing and cooling on the battery pack.
Through the mutual cooperation of one-level gas generator, can in time cool down and put out a fire the battery package, can reduce the battery package and present the extensive spontaneous combustion condition, simultaneously, when the battery package was transported on a large scale, can reduce the spontaneous combustion of a battery package and influence the condition of other battery packages.
Optionally, a power source is arranged inside the driving part, and under the action of the power source, the distance between the driving part and the secondary gas generator is gradually reduced, so that the driving part can extrude the secondary gas generator.
Through adopting above-mentioned technical scheme, the direction removal of power supply drive driver part to second grade gas generator, when the distance between driver part and the second grade gas generator is enough hours, driver part and second grade gas generator extrude each other to cause the second grade gas generator because receive pressure and the condition that bursts appears, thereby release the fire extinguishing substance in the second grade gas generator, in order to realize cooling and putting out a fire for the battery package.
Optionally, the driving part includes:
the starting piece is arranged between the driving part and the secondary gas generator and can extrude the secondary gas generator under the action of the power source.
Through adopting above-mentioned technical scheme, under the effect of power supply, distance between driver part and the second grade gas generator reduces gradually, starts the piece under driver part's effect, also is close to gradually to the second grade gas generator, causes start piece and second grade gas generator to extrude each other to make the second grade gas generator break, thereby release the material of putting out a fire, in order to cool down and put out a fire for the battery package.
Optionally, perfluorohexanone is arranged inside the primary gas generator and the secondary gas generator.
By adopting the technical scheme, the perfluorohexanone achieves the fire extinguishing effect through heat absorption, and is a green environment-friendly fire extinguishing agent which is safer to human bodies when in use.
Optionally, the driving component is a glass bulb, and petroleum is arranged inside the glass bulb.
Through adopting above-mentioned technical scheme, when the temperature in the environment of battery package locating risees gradually, the temperature of oil also can rise gradually, and the glass bubble is extruded to oil, and when the scope of bearing of glass bubble reached the limit, the glass bubble took place to explode and split to give the power that the starter piece is close to second grade gas generator, poke the second grade gas generator broken, thereby second grade gas generator release perfluor hexanone, in order to cool down and put out a fire for the battery package.
Optionally, the starting member is a thimble, one end of the thimble is connected to the outside of the driving member, and the other end of the thimble faces the secondary gas generator.
Through adopting above-mentioned technical scheme, the drive part gives the thimble to the power that second grade gas generator is close to, and the thimble is close to and punctures it to second grade gas generator under drive part's effect to the fire extinguishing substance in the second grade gas generator releases.
The invention also aims to provide a fire-fighting triggering method which has the characteristics of timely cooling and extinguishing a fire for a battery pack.
The second aim of the invention is realized by the following technical scheme:
a fire-fighting triggering method comprises the steps of,
acquiring the environmental parameters of the battery pack;
comparing and judging with the primary threshold;
if the environmental parameter exceeds the primary threshold, generating a trigger signal; wherein the trigger signal is associated with the primary gas generator.
Through adopting above-mentioned technical scheme, obtain the environmental parameter of battery package, carry out the comparison judgement through the environmental parameter of battery package and one-level threshold value, when environmental parameter is greater than one-level threshold value, think that the battery package has the possibility of spontaneous combustion or is in the state of spontaneous combustion, control one-level gas generator through trigger signal and release the material of putting out a fire to lower the temperature and put out a fire for the battery package, control second grade gas generator through trigger signal.
Optionally, if the environmental parameter exceeds the primary threshold, after generating the trigger signal, the method further includes:
based on the environmental parameter, comparing and judging with the secondary threshold;
if the environmental parameter exceeds the secondary threshold, generating a starting signal; wherein the activation signal is associated with the secondary gas generator.
Through adopting above-mentioned technical scheme, under the effect of one-level gas generator, when the environmental parameter of battery package still rose, then showed that the battery package is still in the state of spontaneous combustion, when the environmental parameter exceeded the second grade threshold value, released the material of putting out a fire through start signal control second grade gas generator, mutually supported through one-level gas generator and second grade gas generator, released the material of putting out a fire many times, effectively reduced the temperature of battery package, and extinguish the fire of battery package.
Optionally, if the environmental parameter exceeds the primary threshold, generating the trigger signal includes:
generating an alarm signal based on the trigger signal; wherein the alarm signal is associated with an alarm device.
Through adopting above-mentioned technical scheme, when the battery package takes place the spontaneous combustion, because the sheltering from of materials such as shell, hardly notice, when generating trigger signal, can explain that the battery package is in one and is about to spontaneous combustion or has spontaneous combustion, this moment based on trigger signal, generate alarm signal, through alarm signal control alarm device, and start alarm device, with this state of informing the outside personnel this battery package, outside personnel can in time do corresponding processing to the battery package, reduce the condition of the collective spontaneous combustion explosion of large-scale battery package.
In summary, the invention includes at least one of the following beneficial technical effects:
1. when one of the smoke concentration and the temperature exceeds a first threshold value, the battery pack can be considered to be spontaneously ignited or about to spontaneously ignite, the first-stage gas generator releases a fire extinguishing substance at the moment, the fire extinguishing substance can extinguish the fire inside the battery pack, and the external temperature of the battery pack can also be reduced;
2. the power source drives the driving part to move towards the direction of the secondary gas generator, when the distance between the driving part and the secondary gas generator is small enough, the driving part and the secondary gas generator are mutually extruded, so that the secondary gas generator is burst due to pressure, and fire extinguishing substances in the secondary gas generator are released, so that the battery pack is cooled and put out;
3. based on the trigger signal, an alarm signal is generated, the alarm device is controlled through the alarm signal, and the alarm device is started, so that external personnel can be informed of the state of the battery pack, the external personnel can timely perform corresponding treatment on the battery pack, and the situation of large-scale battery pack collective spontaneous combustion explosion is reduced.
Drawings
Fig. 1 is a block diagram of a fire-fighting triggering device according to an embodiment of the present invention.
Fig. 2 is a schematic structural diagram of a fire-fighting triggering device according to an embodiment of the invention.
Fig. 3 is a schematic step diagram of a fire-fighting triggering method according to an embodiment of the present invention.
In the figure, 1, a detection sensor; 2. a primary gas generator; 3. a secondary gas generator; 4. a drive member; 5. an actuating member.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The embodiment of the invention provides a fire-fighting trigger device, which comprises:
referring to fig. 1, a detection sensor 1 for detecting an environmental parameter of a battery pack.
The environment parameters comprise smoke concentration and temperature, when the battery pack works or other reasons, the heat inside the battery pack cannot be normally discharged to the outside air, the temperature inside the battery pack can be gradually increased, when the temperature inside the battery pack reaches a certain degree, the combustion substances inside the battery pack can generate a spontaneous combustion condition, the content of the generated carbon dioxide or other molecules is gradually increased, and the smoke concentration refers to the concentration of substances such as carbon dioxide and particles.
In this embodiment, the detection sensor 1 refers to a smoke sensor and a temperature sensor, and the smoke concentration and the temperature condition in the battery pack environment can be obtained in real time through the detection sensor 1, or the smoke concentration and the temperature condition in the battery pack environment can be obtained periodically.
A primary gas generator 2 for releasing a fire extinguishing substance when the environmental parameter exceeds a first threshold value.
The primary gas generator 2 is electrically connected with the detection sensor 1 through a controller, and when environmental parameters in the battery pack exceed a first threshold value, the primary gas generator 2 releases fire extinguishing substances; when the battery pack is spontaneously combusted or the environmental parameters reach the conditions that the battery pack can spontaneously combust, the temperature in the environment of the battery pack can be gradually increased, and when the battery pack spontaneously combusts, substances such as carbon dioxide and the like can be released by combustion, so that the fire extinguishing substances are released to extinguish the fire or reduce the temperature of the battery pack by taking the environmental parameters as reference values and when the environmental parameters exceed a first threshold value.
A secondary gas generator 3 for releasing a fire extinguishing substance when the environmental parameter exceeds a second threshold value;
the second threshold value is larger than the first threshold value, the secondary gas generator 3 is associated with the driving part 4, when the fire extinguishing substance released by the primary gas generator 2 cannot extinguish the fire of the battery pack, the ambient temperature or the smoke concentration in the battery pack can be gradually increased, when the environmental parameter in the battery pack exceeds the second threshold value, the secondary gas generator 3 releases the fire extinguishing substance to the battery pack under the action of the driving part 4, and the fire extinguishing substance is released to the battery pack at intervals for a plurality of times, so that the spontaneous combustion condition of the battery pack can be controlled in time.
Second grade gas generator 3 is under the effect of drive unit 4, release the fire extinguishing substance, more specifically, the inside of drive unit 4 is provided with the power supply, the power supply enables drive unit 4 and second grade gas generator 3's distance to reduce, and extrude each other, and be provided with starting member 5 between drive unit 4 and second grade gas generator 3, starting member 5 sets up on drive unit 4, under the effect of power supply, drive unit 4 is to the mutual in-process that second grade gas generator 3 was close to, starting member 5 is under the effect of drive unit 4, starting member 5 also is close to the direction of second grade gas generator 3, last starting member 5 and second grade gas generator 3 extrude each other, until second grade gas generator 3 appears breaking, thereby release the fire extinguishing substance in second grade gas generator 3, cool down or put out a fire for the battery package.
In this embodiment, perfluoro hexanone is disposed inside the primary gas generator 2 and the secondary gas generator 3, and when the primary gas generator 2 and the secondary gas generator 3 are externally squeezed, the primary gas generator 2 and the secondary gas generator 3 are ruptured to release the fire extinguishing substance when the squeezing force exerted on the primary gas generator 2 and the secondary gas generator 3 reaches a certain degree.
More specifically, referring to fig. 2, the driving member 4 is a glass bulb, oil is disposed in the glass bulb, the actuating member 5 is disposed on one side of the glass bulb, when environmental parameters of the battery pack gradually rise, the oil presses the glass bulb under the influence of the external environment, when the pressing force exceeds the bearing range of the glass bulb, the glass bulb breaks, and the glass bulb breaks to give the actuating member 5 power to approach the secondary gas generator 3.
In other embodiments, the actuating member 5 may be driven by the driving member 4 toward the secondary gas generator 3, and the secondary gas generator 3 may be pressed by the actuating member 5 to rupture the secondary gas generator 3, thereby releasing the fire extinguishing substance.
The principle of the embodiment is as follows: acquire the environmental parameter of battery package through detecting sensor 1, when environmental parameter surpassed first threshold value, trigger one-level gas generator 2 release and put out a fire the material, when the material of putting out a fire of one-level gas generator 2 release can't be for the battery package cooling or put out a fire, when environmental parameter reaches the second threshold value, drive component 4 triggers second grade gas generator 3 release and puts out a fire the material, through releasing the material of putting out a fire many times, in time for the battery package cooling and put out a fire, the condition that the spontaneous combustion of extensive battery package appears is reduced.
The application embodiment provides a fire control triggering method, and the fire control triggering method comprises the fire control triggering device of the embodiment, and further comprises the following steps:
a fire protection triggering method, comprising:
referring to fig. 3, S1, the environmental parameters of the battery pack are acquired.
The environmental parameters refer to the smoke concentration and temperature in the battery pack, and also refer to the concentration of gases such as carbon dioxide in the battery pack.
And S2, comparing and judging with the primary threshold value.
The first-level threshold value refers to a reference value of the environmental parameter, the reference value is an environmental condition that the battery pack is considered to be spontaneously combusted or is about to enter the spontaneous combustion, and the state of the battery pack is obtained in time through comparison of the first-level threshold value and the environmental parameter.
And S3, if the environmental parameter exceeds the primary threshold, generating a trigger signal.
Wherein, triggering signal is related to one-level gas generator 2, when environmental parameter surpassed first threshold value, generates triggering signal, and triggering signal controls one-level gas generator's 2 controller, and the controller is under triggering signal's effect, and one-level gas generator 2 release fire extinguishing substance to for the cooling of battery package and put out a fire.
And S4, comparing and judging with a secondary threshold value based on the environmental parameters.
Wherein, when one-level gas generator 2 for the battery package cooling or put out a fire, environmental parameter continues to rise, through environmental parameter and the mutual comparison of second grade threshold value, can further understand the condition of battery package, it is worth noting that, in this embodiment, the second grade threshold value is greater than one-level threshold value.
And S5, if the environmental parameter exceeds the secondary threshold value, generating a starting signal.
Wherein, start signal is related to second grade gas generator 3, and when the fire extinguishing substance that the one-level gas generator 2 released can't cool down or put out a fire for the battery package, environmental parameter continues to rise, and when environmental parameter reachd the second grade threshold value, the start signal is generated, and start signal control second grade gas generator 3 releases the fire extinguishing substance.
Through the mutual cooperation of one-level gas generator 2 and second grade gas generator 3, give the battery package release the material of putting out a fire many times to for the battery package cooling with put out a fire, control the condition of living the battery package from the source.
And S6, generating an alarm signal based on the trigger signal.
Wherein, alarm signal is related to alarm device, because there is sheltering from of materials such as shell in the battery package outside, the external world can't learn the condition in the battery package, timely one-level gas generator 2 or second grade gas generator 3 have worked, the outside is also unknown, a battery package burning and the condition that drives other battery package burning appear easily, generate alarm signal through trigger signal, alarm signal controls alarm device again, in this embodiment, alarm device is the pilot lamp, the pilot lamp lights, explain this battery package presents the problem, operating personnel can in time do corresponding measure to the battery package that has the problem.
The fire-fighting triggering method provided by the embodiment can realize the modules of the fire-fighting triggering device of the embodiment due to the steps and the logical connection among the steps, so that the technical effect same as that of the fire-fighting triggering device can be achieved, and the principle analysis can be referred to the related description of the steps of the method, and will not be described herein again.
The foregoing is only a partial embodiment of the present application, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present application, and these modifications and decorations should also be regarded as the protection scope of the present application.

Claims (9)

1. A fire control triggering mechanism, comprising:
the detection sensor (1) is used for detecting environmental parameters of the battery pack, wherein the environmental parameters comprise smoke concentration and temperature;
the primary gas generator (2) is used for releasing a fire extinguishing substance when the environmental parameter exceeds a first threshold value, wherein the primary gas generator (2) is electrically connected with the detection sensor (1) through a controller;
a secondary gas generator (3) for releasing a fire extinguishing substance when the environmental parameter exceeds a second threshold value, which is greater than the first threshold value, wherein the secondary gas generator (3) is associated with a drive member (4).
2. A fire fighting triggering device as recited in claim 1, including:
the driving part (4) is internally provided with a power source, and under the action of the power source, the distance between the driving part (4) and the secondary gas generator (3) is gradually reduced, so that the driving part (4) can extrude the secondary gas generator (3).
3. A fire fighting triggering device as defined in claim 2, characterized in that the driving part (4) comprises:
and the starting piece (5) is arranged between the driving part (4) and the secondary gas generator (3), and under the action of the power source, the starting piece (5) can extrude the secondary gas generator (3).
4. A fire fighting triggering device as recited in claim 1, including:
perfluorohexanone is arranged inside the primary gas generator (2) and the secondary gas generator (3).
5. A fire fighting triggering device as recited in claim 3, including:
the driving part (4) is a glass bulb, and petroleum is arranged inside the glass bulb.
6. A fire fighting triggering device as recited in claim 3, including:
the starting piece (5) is a thimble, one end of the thimble is connected with the outside of the driving part (4), and the other end of the thimble faces the secondary gas generator (3).
7. A fire control triggering method, comprising the fire control triggering device of any one of claims 1-6, the fire control triggering method comprising:
acquiring the environmental parameters of the battery pack;
comparing and judging with the primary threshold;
if the environmental parameter exceeds the primary threshold, generating a trigger signal; wherein the trigger signal is associated with the primary gas generator (2).
8. The fire protection triggering method of claim 8, wherein if the environmental parameter exceeds the primary threshold, generating a triggering signal further comprises:
based on the environmental parameter, comparing and judging with the secondary threshold;
if the environmental parameter exceeds the secondary threshold, generating a starting signal; wherein the activation signal is associated with the secondary gas generator (3).
9. A fire protection triggering method as recited in claim 8, wherein if said environmental parameter exceeds said primary threshold, generating a triggering signal comprises:
generating an alarm signal based on the trigger signal; wherein the alarm signal is associated with an alarm device.
CN202210607061.9A 2022-05-31 2022-05-31 Fire-fighting triggering device and method Pending CN114949679A (en)

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Application Number Priority Date Filing Date Title
CN202210607061.9A CN114949679A (en) 2022-05-31 2022-05-31 Fire-fighting triggering device and method

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Application Number Priority Date Filing Date Title
CN202210607061.9A CN114949679A (en) 2022-05-31 2022-05-31 Fire-fighting triggering device and method

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CN114949679A true CN114949679A (en) 2022-08-30

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108744344A (en) * 2018-04-27 2018-11-06 中国科学技术大学 A kind of fire-fighting system of lithium system power battery
CN209933882U (en) * 2019-04-24 2020-01-14 陕西坚瑞消防安全设备有限公司 Non-pressure storage type automatic fire extinguishing device for battery box of new energy lithium battery car
CN111991729A (en) * 2020-09-11 2020-11-27 中车大同电力机车有限公司 Power supply fire extinguishing device and locomotive

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108744344A (en) * 2018-04-27 2018-11-06 中国科学技术大学 A kind of fire-fighting system of lithium system power battery
CN209933882U (en) * 2019-04-24 2020-01-14 陕西坚瑞消防安全设备有限公司 Non-pressure storage type automatic fire extinguishing device for battery box of new energy lithium battery car
CN111991729A (en) * 2020-09-11 2020-11-27 中车大同电力机车有限公司 Power supply fire extinguishing device and locomotive

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