CN109568833A - A kind of anti-re-ignition automatic fire extinguisher of power battery pack and method - Google Patents
A kind of anti-re-ignition automatic fire extinguisher of power battery pack and method Download PDFInfo
- Publication number
- CN109568833A CN109568833A CN201910022230.0A CN201910022230A CN109568833A CN 109568833 A CN109568833 A CN 109568833A CN 201910022230 A CN201910022230 A CN 201910022230A CN 109568833 A CN109568833 A CN 109568833A
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- Prior art keywords
- fire
- extinguishing
- fire extinguishing
- battery pack
- extinguisher
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C3/00—Fire prevention, containment or extinguishing specially adapted for particular objects or places
- A62C3/07—Fire prevention, containment or extinguishing specially adapted for particular objects or places in vehicles, e.g. in road vehicles
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C3/00—Fire prevention, containment or extinguishing specially adapted for particular objects or places
- A62C3/16—Fire prevention, containment or extinguishing specially adapted for particular objects or places in electrical installations, e.g. cableways
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C37/00—Control of fire-fighting equipment
- A62C37/36—Control of fire-fighting equipment an actuating signal being generated by a sensor separate from an outlet device
- A62C37/38—Control of fire-fighting equipment an actuating signal being generated by a sensor separate from an outlet device by both sensor and actuator, e.g. valve, being in the danger zone
- A62C37/40—Control of fire-fighting equipment an actuating signal being generated by a sensor separate from an outlet device by both sensor and actuator, e.g. valve, being in the danger zone with electric connection between sensor and actuator
Abstract
The invention discloses a kind of anti-re-ignition automatic fire extinguisher of power battery pack and methods；The shell of extinguishing device is divided into inside and outside shell, is disposed with fire extinguishing mould group between inside and outside shell in the gap at top, includes flame sensor, nozzle of fire extinguisher, and fire extinguishing mould group outer end connects two high-pressure extinction agent tanks, is respectively provided with compression cooling extinguishing chemical and fire retardant extinguisher；The flame sensor of fire extinguishing mould group passes it to controller when detecting region flame signal, controller assigns instruction, and successively flame-retarding fire-extinguishing device tank valve and cooling fire extinguisher tank valve are opened in interval, and the nozzle of fire extinguisher in fire zone fire extinguishing mould group is opened simultaneously, the purpose for realizing early stage quick extinguishing and continued down fire extinguishing, effectively controls the further diffusion of battery pack fire incident；Shell and battery pack are independent, are not limited, are had a wide range of application by battery types.
Description
Technical field
The present invention relates to extinguishing device more particularly to a kind of anti-re-ignition automatic fire extinguisher of power battery pack and methods.
Background technique
The popularity rate of electric car is more and more wider in recent years, and the capacity of vehicle-mounted lithium ion battery is also increasing, but by
In the limitation of the unstability and single battery consistency problem and battery pack BMS technical bottleneck of lithium ion battery itself, lead
Electrical automobile incidents of spontaneous combustion is sent a telegraph to take place frequently.
Related practical electric vehicle fire rescue example and lithium ion battery fire test show that extinguishing chemical puts out battery fire
If the not no cooling measure of certain time after a period of time, battery fire has greatly may re-ignition.
Most of batteries of electric automobile packet thermal runaway fire accident be all it is first on fire and then be diffused into entirety by part,
And the diffusion process of fire has regular hour gap, if can take measures at local thermal runaway initial stage on fire inhibits fire
Feelings can effectively avoid the generation of whole fire or explosion disaster.
Summary of the invention
The shortcomings that it is an object of the invention to overcome the above-mentioned prior art and deficiency provide a kind of anti-re-ignition of power battery pack
Automatic fire extinguisher and method.When realizing that part monomer generation thermal runaway is on fire in on-vehicle battery group, fixed point stamps out a fire in time,
And continue cooling thermal runaway part and prevent re-ignition, effectively inhibit the further sprawling of battery pack fire, it is ensured that extremely abuse operating condition
Under vehicle and passenger safety.
The present invention is achieved through the following technical solutions:
A kind of anti-re-ignition automatic fire extinguisher of power battery pack, including shell 1 and battery pack 2 disposed within and fire extinguishing system
System, fire extinguishing system include fire extinguishing mould group 3, controller 5, fire retardant extinguisher holding vessel 6, cooling extinguishing agent storage tank 7；
The fire extinguishing mould group 3 includes multiple fire extinguishing units 300；Shell 1 is divided for several region units, in each region unit
One fire extinguishing unit 300 is installed, each fire extinguishing unit 300 is provided with flame sensor 302 and multiple electrification sub switchs
Fire extinguishing sprayer 301；
The fire retardant extinguisher holding vessel 6 and cooling extinguishing agent storage tank 7 are provided with electric control valve 67, and pass through pipeline
The fire extinguishing sprayer 301 of 603 each fire extinguishing units 300 of connection；
The electric control valve 67, flame sensor 302 and fire extinguishing sprayer 301 are separately connected controller 5, work as flame sensor
302 when detecting one's respective area block flame signal, passes it to controller 5, opens the sprayer for extinguishing fire in the region by controller 5
First 301, and open the electric control valve 67 of fire retardant extinguisher holding vessel 6 and/or the extinguishing agent storage tank 7 that cools down.
The shell 1 includes inner casing and shell, and battery pack 2 is located in inner casing, fire extinguishing mould group 3 be mounted on inner casing and shell it
Between gap top.
The outside of the shell 1 is additionally provided with to provide work for electric control valve 67, flame sensor 302 and controller 5
The ups power 8 of electric energy.
The fire retardant extinguisher holding vessel 6 and cooling extinguishing agent storage tank 7 are arranged at the outside of shell 1.
The extinguishing method of the anti-re-ignition automatic fire extinguisher of power battery pack, includes the following steps:
When battery pack 2 works normally, the electric control valve 67 of fire retardant extinguisher holding vessel 6 and cooling extinguishing agent storage tank 7,
And the fire extinguishing sprayer 301 of each fire extinguishing unit 300 is in closed state；
When flame sensor 302 detects abnormal heat radiation, controller 5 is fed back information to, controller 5 is according to setting
Threshold decision whether start fire extinguishing program, i.e., when flame sensor 302 detects that heat radiation is more than threshold value, controller 5 is vertical
That is starting alarm, when 30s is without artificial response, then opens the fire extinguishing sprayer 301 of corresponding fire extinguishing unit 300, and open flame-retarding fire-extinguishing
The electric control valve 67 of agent holding vessel 6, after persistently spraying fire retardant extinguisher 30s, controller 5 is fed back according to flame sensor 302
Information decides whether to continue to spray fire retardant extinguisher, and after flame is extinguished, closing is opened fire retardant extinguisher holding vessel by controller 5
6 electric control valve 67, and the electric control valve 67 of cooling extinguishing agent storage tank 7 is opened, the battery pack of the region unit is persistently sprayed
Cool down extinguishing chemical 30s, prevents re-ignition.
The present invention compared with the existing technology, have following advantages and effects
The present invention successively acts on thermal runaway fire area electricity by optimal control, using two distinct types of extinguishing chemical
Chi Bao, what can be optimized is stored using limited extinguishing chemical, realizes the purpose of early stage quick extinguishing and continued down fire extinguishing, effectively
Control the further diffusion of battery pack fire incident, it is ensured that the safety of vehicle and passenger under extreme abuse operating condition.
The fire extinguishing mould group of upper part of the housing includes multiple fire extinguishing units in the present invention, and each fire extinguishing unit includes that a flame is visited
Device and multiple fire extinguishing sprayers are surveyed, is designed by reasonably optimizing, the range that the flame detector of each fire extinguishing unit is monitored has one
The Stability and veracity of system can be improved in fixed intersection.Simultaneously because the presence of intersection region, so that system is detecting
Fire suppression measures not only are taken to region on fire after local thermal runaway kindling, while also can take in advance one to periphery adjacent domain
It sets down measures, prevents trouble before it happens, further increase the dynamics for inhibiting fire diffusion.
Inventive shell is made of inner and outer shell, and inner casing uses fire proofing material, and detection and fire suppression module is effectively protected
Line construction, it is ensured that system can work normally under bad working environments.
The flame sensor that the present invention uses may be implemented to detect from ultraviolet to infrared band all band, when heat occurs for battery
When out of control, abnormal heat radiation can be quickly detected and transmit signal to controller.
Battery pack of the present invention is placed in inner housing inner, and internal cell packet itself is independent, it is ensured that in battery pack or whole
It works independently when vehicle is in extreme abuse operating condition unaffected, and this system structure is more flexible, it can be according to specific battery
Packet carries out flexibly changing adjustment.
Extinguishing agent storage tank of the present invention is stored using high pressure compressed mode, controls open and-shut mode, fire extinguishing by electric control valve
When can efficiently act on, without increase pressurization power device.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the anti-re-ignition automatic fire extinguisher of power battery pack of the present invention.
Fig. 2 is the internal structure side view perspective diagram of the anti-re-ignition automatic fire extinguisher of power battery pack of the present invention.
Fig. 3 is the schematic diagram in top down perspective of the anti-re-ignition automatic fire extinguisher of power battery pack of the present invention.
Specific embodiment
The present invention is more specifically described in detail combined with specific embodiments below.
Embodiment
As shown in Figs. 1-3.The invention discloses a kind of anti-re-ignition automatic fire extinguishers of power battery pack, including 1 He of shell
Battery pack 2 disposed within and fire extinguishing system, fire extinguishing system include fire extinguishing mould group 3, controller 5, fire retardant extinguisher holding vessel 6,
Cool down extinguishing agent storage tank 7；
The fire extinguishing mould group 3 includes multiple fire extinguishing units 300；Shell 1 is divided for several region units, in each region unit
One fire extinguishing unit 300 is installed, each fire extinguishing unit 300 is provided with flame sensor 302 and multiple electrification sub switchs
Fire extinguishing sprayer 301；It is designed by the reasonably optimizing of this subregion, the range that the flame detector of each fire extinguishing unit is monitored
There is certain intersection, the Stability and veracity of system can be improved.Simultaneously because the presence that region unit intersects between each other, makes
The system of obtaining not only takes fire suppression measures to region on fire after detecting local thermal runaway kindling, while also can be neighbouring to periphery
Certain measure is taken in region in advance, prevents trouble before it happens, and further increases the dynamics for inhibiting fire diffusion.
The fire retardant extinguisher holding vessel 6 and cooling extinguishing agent storage tank 7 are provided with electric control valve 67, and pass through pipeline
The fire extinguishing sprayer 301 of 603 each fire extinguishing units 300 of connection；Pipeline 603 uses pressure-resistant corrosion-resistant copper pipe.
The electric control valve 67, flame sensor 302 and fire extinguishing sprayer 301 are separately connected controller 5, work as flame sensor
302 when detecting one's respective area block flame signal, passes it to controller 5, opens the sprayer for extinguishing fire in the region by controller 5
First 301, and open the electric control valve 67 of fire retardant extinguisher holding vessel 6 and/or the extinguishing agent storage tank 7 that cools down.
The effective range angle that flame sensor 302 is monitored can adjust according to different service conditions, and generally 10-
45 °, comprehensively considered according to upper part of the housing away from battery pack distance and detection efficiency in the present embodiment, selecting monitoring angle is 30 °, can
Detection accuracy is set to be maintained at 95% or more.
The shell 1 includes inner casing and shell, and battery pack 2 is located in inner casing, fire extinguishing mould group 3 be mounted on inner casing and shell it
Between gap top.Shell is the metal material for meeting stiffness and strength requirement；Inner casing is fire proofing material partition composition, can be effective
The line construction of protection detection and fire extinguishing mould group, it is ensured that system can work normally under bad working environments.
The arrangement form of each fire extinguishing unit 300 in the present invention can be adjusted according to the actual situation, the present embodiment
Select a flame sensor and four fire extinguishing sprayers for a fire extinguishing unit.
The outside of the shell 1 is additionally provided with to provide work for electric control valve 67, flame sensor 302 and controller 5
The ups power 8 of electric energy.
The fire retardant extinguisher holding vessel 6 and cooling extinguishing agent storage tank 7 are arranged at the outside of shell 1, and extinguishing chemical is adopted
It is stored in it with high pressure compressed mode, when fire extinguishing can efficiently act on, without increasing pressurization power device.
Two distinct types of go out is respectively provided in fire retardant extinguisher holding vessel 6 of the present invention and cooling extinguishing agent storage tank 7
Fiery agent, concrete type can be adjusted according to the type of battery pack, and the present embodiment goes out for the selection of ternary lithium ion battery is fire-retardant
Fiery agent is high-pressure liquid heptafluoro-propane, and fire extinguishing rapidly, is not easy to react with other materials, is a kind of stable material, and not
Conduction will not damage electronic instrument, safe and non-toxic pollution-free, environmentally protective；The extinguishing chemical that cools down is common water base fire extinguishing
Agent can take away the amount of heat of thermal runaway generation with larger specific heat capacity, can continue after fire retardant extinguisher puts out open fire
Cool down to battery, effectively inhibition re-ignition.Two kinds of extinguishing chemical elder generation after effect times can be according to single battery in battery pack
Capacity is made adjustment, and the action time of two kinds of extinguishing chemicals is 30s in the present embodiment.
The extinguishing method of the anti-re-ignition automatic fire extinguisher of power battery pack, includes the following steps:
When battery pack 2 works normally, the electric control valve 67 of fire retardant extinguisher holding vessel 6 and cooling extinguishing agent storage tank 7,
And the fire extinguishing sprayer 301 of each fire extinguishing unit 300 is in closed state；
When flame sensor 302 detects abnormal heat radiation, controller 5 is fed back information to, controller 5 is according to setting
Threshold decision whether start fire extinguishing program, i.e., when flame sensor 302 detects that heat radiation is more than threshold value, controller 5 is vertical
That is starting alarm, when 30s is without artificial response, then opens the fire extinguishing sprayer 301 of corresponding fire extinguishing unit 300, and open flame-retarding fire-extinguishing
The electric control valve 67 of agent holding vessel 6, after persistently spraying fire retardant extinguisher 30s, controller 5 is fed back according to flame sensor 302
Information decides whether to continue to spray fire retardant extinguisher, and after flame is extinguished, closing is opened fire retardant extinguisher holding vessel by controller 5
6 electric control valve 67, and the electric control valve 67 of cooling extinguishing agent storage tank 7 is opened, the battery pack of the region unit is persistently sprayed
Cool down extinguishing chemical 30s, prevents re-ignition.
The present invention successively acts on thermal runaway fire area battery pack using two distinct types of extinguishing chemical, can optimize
Using limited extinguishing chemical store, realize early stage quick extinguishing and continued down fire extinguishing purpose, effectively control battery pack fire
The further diffusion of calamity accident, it is ensured that the safety of vehicle and passenger under extreme abuse operating condition.
Embodiment of the present invention are not limited by the above embodiments, other are any without departing from Spirit Essence of the invention
With changes, modifications, substitutions, combinations, simplifications made under principle, equivalent substitute mode should be, be included in of the invention
Within protection scope.
Claims (5)
1. a kind of anti-re-ignition automatic fire extinguisher of power battery pack, including shell (1) and battery pack disposed within (2) and fire extinguishing
System, it is characterised in that: fire extinguishing system includes fire extinguishing mould group (3), controller (5), fire retardant extinguisher holding vessel (6), cools down and go out
Fiery agent holding vessel (7)；
The fire extinguishing mould group (3) includes multiple fire extinguishing units (300)；Shell (1) is divided into several region units, each region unit
One fire extinguishing unit (300) of interior installation, each fire extinguishing unit (300) are provided with flame sensor (302) and multiple having electronics
The fire extinguishing sprayer (301) of switch；
The fire retardant extinguisher holding vessel (6) and cooling extinguishing agent storage tank (7) are provided with electric control valve (67), and pass through pipe
Road 603 connects the fire extinguishing sprayer (301) of each fire extinguishing unit (300)；
The electric control valve (67), flame sensor (302) and fire extinguishing sprayer (301) are separately connected controller (5), when flame passes
When sensor (302) detects one's respective area block flame signal, controller (5) are passed it to, which is opened by controller (5)
Interior fire extinguishing sprayer (301), and open the electric control valve of fire retardant extinguisher holding vessel (6) and/or cooling extinguishing agent storage tank (7)
(67)。
2. the anti-re-ignition automatic fire extinguisher of power battery pack according to claim 1, it is characterised in that: shell (1) packet
Inner casing and shell are included, battery pack (2) is located in inner casing, and fire extinguishing mould group (3) is mounted on the top in gap between inner casing and shell.
3. the anti-re-ignition automatic fire extinguisher of power battery pack according to claim 2, it is characterised in that: the shell (1)
Outside is additionally provided with electric control valve (67), flame sensor (302) and controller (5) and provides the ups power (8) of work energy.
4. the anti-re-ignition automatic fire extinguisher of power battery pack according to claim 3, it is characterised in that: the fire retardant extinguisher
Holding vessel (6) and cooling extinguishing agent storage tank (7) are arranged at the outside of shell (1).
5. the extinguishing method of the anti-re-ignition automatic fire extinguisher of power battery pack described in claim 4, it is characterised in that including as follows
Step:
When battery pack (2) work normally, the electric control valve of fire retardant extinguisher holding vessel (6) and cooling extinguishing agent storage tank (7)
(67) and the fire extinguishing sprayer (301) of each fire extinguishing unit (300) is in closed state；
It when flame sensor (302) detects abnormal heat radiation, feeds back information to controller (5), controller (5) basis is set
Whether fixed threshold decision starts fire extinguishing program, i.e., when flame sensor (302) detects that heat radiation is more than threshold value, controller
(5) starting alarm immediately, when 30s is without artificial response, then opens the fire extinguishing sprayer (301) of corresponding fire extinguishing unit (300), and open
The electric control valve (67) of fire retardant extinguisher holding vessel (6), after persistently spraying fire retardant extinguisher 30s, controller (5) is passed according to flame
The information of sensor (302) feedback decides whether to continue to spray fire retardant extinguisher, and after flame is extinguished, controller (5) will be closed
The electric control valve (67) of fire retardant extinguisher holding vessel (6) is opened, and opens the electric control valve (67) of cooling extinguishing agent storage tank (7),
Cooling extinguishing chemical 30s is persistently sprayed to the battery pack of the region unit, prevents re-ignition.
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| CN201910022230.0A CN109568833A (en) | 2019-01-10 | 2019-01-10 | A kind of anti-re-ignition automatic fire extinguisher of power battery pack and method |
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| CN201910022230.0A CN109568833A (en) | 2019-01-10 | 2019-01-10 | A kind of anti-re-ignition automatic fire extinguisher of power battery pack and method |
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| CN110393874A (en) * | 2019-05-07 | 2019-11-01 | 国网电力科学研究院武汉南瑞有限责任公司 | Fire-fighting fire extinguishing control method for lithium battery module |
| CN110588835A (en) * | 2019-08-17 | 2019-12-20 | 徐州远航模具有限公司 | Equipment suitable for mould transportation |
| CN111384341A (en) * | 2019-05-07 | 2020-07-07 | 国网电力科学研究院武汉南瑞有限责任公司 | Lithium battery box with fireproof function and using method thereof |
| CN111888689A (en) * | 2020-07-29 | 2020-11-06 | 中国电力科学研究院有限公司 | Movable fire extinguishing device |
| CN112604203A (en) * | 2020-12-21 | 2021-04-06 | 中国科学技术大学 | Fire extinguishing method for new energy automobile |
| CN113384835A (en) * | 2020-03-11 | 2021-09-14 | 现代自动车株式会社 | Fire extinguishing device for vehicle |
| KR20210128135A (en) * | 2020-04-16 | 2021-10-26 | 한국소방산업기술원 | Method and system for managing a fire of battery energy storage system |
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| CN113707971A (en) * | 2021-08-26 | 2021-11-26 | 中国第一汽车股份有限公司 | Preparation method of high-safety battery and battery |
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| CN115025418A (en) * | 2021-03-05 | 2022-09-09 | 奥迪股份公司 | Motor vehicle and method for introducing a fire extinguishing agent into a battery |
| CN115154957A (en) * | 2022-08-10 | 2022-10-11 | 河南省海天消防科学研究院有限责任公司 | A quick extinguishing device for electric automobile |
| JP2022551641A (en) * | 2020-01-30 | 2022-12-12 | エルジー エナジー ソリューション リミテッド | Battery pack containing fire extinguishing unit, battery rack containing same, and power storage system |
| CN115920273A (en) * | 2022-12-07 | 2023-04-07 | 珠海格力智能装备有限公司 | Battery fire protection device and AGV car |
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