CN102512776A - Battery case automatic extinguishing device used on electric vehicle - Google Patents
Battery case automatic extinguishing device used on electric vehicle Download PDFInfo
- Publication number
- CN102512776A CN102512776A CN2011104337561A CN201110433756A CN102512776A CN 102512776 A CN102512776 A CN 102512776A CN 2011104337561 A CN2011104337561 A CN 2011104337561A CN 201110433756 A CN201110433756 A CN 201110433756A CN 102512776 A CN102512776 A CN 102512776A
- Authority
- CN
- China
- Prior art keywords
- battery case
- fluid reservoir
- circuit
- fire extinguisher
- automatic fire
- Prior art date
- 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.)
- Pending
Links
Images
Landscapes
- Secondary Cells (AREA)
- Battery Mounting, Suspending (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The invention discloses a battery case automatic extinguishing device used on an electric vehicle. The battery case automatic extinguishing device comprises a plurality of battery cases (1), a high-pressure liquid storing tank (2), a pneumatic pump (3), and a controller (4) arranged on each battery case (1). The liquid storing tank (2) contains mixed liquid of fire-extinguishing foam and water mixed according to a certain ratio. The upper part of the liquid storing tank (2) communicates with the pneumatic pump (3) through a gas pipe. The lower part of the liquid storing tank (2) communicates with each battery case (1) through a pipe. A solenoid valve (5) is arranged on each pipe communicating with the battery case (1). A temperature sensor and/or a smoke detector are arranged in each battery case (1). The controllers (4) are respectively electrically connected with the temperature sensor and/or smoke detector, the solenoid valves (5), a 24V low-voltage power supply on the electric vehicle, and a high-voltage air circuit breaker. When the device is used on an electric vehicle, battery case ignition/explosion can be effectively prevented.
Description
Technical field
The present invention relates to the electric automobile field, particularly relate to a kind of battery case automatic fire extinguisher that on electric automobile, is used to prevent the battery case ignition/explosion.
Background technology
Advantages such as lithium ion battery has that specific capacity is big, operating voltage is high, has extended cycle life, volume is little, in light weight have become the first-selection of electric automobile at present.Electrokinetic cell as electric car power supply requires to have bigger capacity and voltage; And the voltage of the lithium ion battery of monomer and capacity are all very little; Therefore; General on electric automobile, the needs is installed on a lot of cells in a plurality of battery cases, forms the requirement that battery pack reaches car power source through series and parallel.
But owing to reasons such as production technologies, there are some differences inevitably in the capacity of each cell and performance, and electric automobile is when operation (battery power discharge); The battery of the little poor performance of capacity had puts phenomenon; And when charging, phenomenon can appear overcharging again in the battery of the little poor performance of capacity, if things go on like this; This species diversity will inevitably be increasing, and the utilization rate that makes battery pack worse and worse.Even more serious is, is overcharging or is crossing under the environment of putting, and the barrier film between battery positive/negative plate can be breakdown and short circuit, produces high temperature, overheatedly makes the electrolyte vaporization, expands and battery case is broken, even catch fire or explode.Therefore, power battery pack need adopt BMS system real time monitoring battery voltage, electric current and temperature, and the voltage of balanced each cell makes reaching unanimity that capacity and the performance of each cell in the battery pack try one's best.And present BMS system reliability can not be very reliable, can't stop the hidden danger of batteries of electric automobile case generation ignition/explosion fully.Therefore, it is necessary extinguishing device being set on electric automobile.
Generally on electric automobile, all can be equipped with hand fire extinguisher; But; General hand fire extinguisher fire-fighting dose is less, and from finding that working as the electric automobile burst smolders/catch fire to the hysteresis of implementing on the fire extinguishing meeting life period, does not have great effect basically to effective enforcement batteries of electric automobile fire extinguishing; In case catch fire, can only see helplessly that battery case burns away even explodes.
Summary of the invention
Problem to be solved by this invention is the defective that overcomes above-mentioned prior art, and a kind of battery case automatic fire extinguisher on the electric automobile that is used for that can effectively stop potential safety hazard is provided.
Technical scheme of the present invention is: the present invention includes a plurality of battery cases, high pressure fluid reservoir, air pump and be installed on the controller on each battery case top; Said fluid reservoir top is connected with air pump through tracheae; Said fluid reservoir bottom is connected with each battery case through pipeline; Be communicated with on the pipeline of each said battery case and be equipped with magnetic valve; In each said battery case all device temperature sensor and/or smoke detector are arranged, said controller respectively with said temperature sensor and/or smoke detector, said magnetic valve, electric motor car on 24V low-tension supply and high-pressure air circuit breaker be electrically connected.
Said air pump is the electric air pump on the electric automobile.
Said tracheae is provided with Non-return air valve.
Air inlet on the said fluid reservoir is provided with triple valve.
Said fluid reservoir top is communicated with a high position and adds flow container, said fluid reservoir inlet device seal valve.
Said fluid reservoir lower device residual liquid discharge valve.
Said controller top is provided with the instant fire extinguishment button.
Be provided with in the said controller and amplify comparison circuit, OR circuit, executive circuit; Said temperature sensor and/or smoke detector are electrically connected with OR circuit through amplifying comparison circuit respectively; Said OR circuit is electrically connected with executive circuit, and said executive circuit is electrically connected with the tripping mechanism of electromagnetic valve coil, high-pressure air circuit breaker respectively.
Said controller top is provided with the instant fire extinguishment button that is electrically connected with said executive circuit.
Be equipped with in the said fluid reservoir by fire foam and water liquid mixture prepared by a certain percentage.
The invention has the beneficial effects as follows: the present invention is provided with a high pressure fluid reservoir on electric automobile; Be equipped with in the fluid reservoir by fire foam and water liquid mixture prepared by a certain percentage; Fluid reservoir connects air pump through tracheae, and fluid reservoir is provided with magnetic valve through each battery case of cross current on each battery case water inlet pipe; Battery case interior arrangement temperature sensor or smoke detector; Or simultaneously unit temp sensor and smoke detector, when the temperature sensor in certain battery case detects battery the temperature inside the box and surpasses setting value or when when smoke detector detects battery case in, smog being arranged, controller receives the high-tension circuit while opens solenoid valve of cutting off battery pack behind the signal of temperature sensor or smoke detector; High pressure foam mixing liquid in the fluid reservoir just can spray in this battery case at once; High pressure makes significant foam be full of battery case and to cover the cell generate heat/smolder peripheral, the hidden danger point that catches fire is completely cut off with air and suffocates, thereby stop the hidden danger of the ignition/explosion of electric automobile.In addition, electric motor car comprises a plurality of battery cases, and the voltage of each battery case is many height (our each battery case voltage is 28.8V) not, can't damage the performance of still intact battery because of the battery short circuit of water generates.
Description of drawings
Fig. 1 is a structure principle chart of the present invention;
Fig. 2 is the structure diagram of high pressure fluid reservoir of the present invention;
Fig. 3 is the structure diagram of battery case of the present invention;
Fig. 4 is the enlarged diagram of I portion among Fig. 3;
Fig. 5 is a circuit control principle sketch of the present invention.
The specific embodiment
Below in conjunction with accompanying drawing embodiments of the invention are done concrete the detailed description.
Like Fig. 1, Fig. 2, Fig. 3, shown in Figure 4, the present invention includes a plurality of battery cases 1 (the present invention includes 9 battery cases, each battery case voltage is 28.8V), high pressure fluid reservoir 2, air pump 3 and be installed on the controller 4 on battery case 1 top.
The foam mixing liquid of being prepared by a certain percentage by fire foam and water is housed in the fluid reservoir 2, and fluid reservoir 2 tops are communicated with and are arranged at the high-order flow container 8 that adds, and the inlet device of fluid reservoir 2 has seal valve 9, and fluid reservoir 2 walls are provided with the liquid level observation window 21 of band scale; Fluid reservoir 2 tops also are connected with air pump 3 through tracheae, and air pump 3 is the electric air pump on the electric automobile, and tracheae is provided with breather cheek valve 6, and the air inlet on the fluid reservoir 2 is provided with triple valve 7; Fluid reservoir 2 bottoms are connected with each battery case 1 through pipeline, are communicated with on the pipeline of each battery case 1 to be equipped with magnetic valve 5; Fluid reservoir 2 bottom returning apparatus have residual liquid discharge valve 10.Place the venting position to emit the high pressure gas in the fluid reservoir 2 on triple valve 7 before the liquid feeding, seal valve 9 is placed the conducting position, add flow container 8 certainly and add the foam mixing liquid for preparing; Watch about liquid feeding to 30 through liquid level observation window 21; Sealing seal valve 9 places the air inlet position with triple valve 7, after electric automobile starts; Air pump 3 is just inflated and is inflated for fluid reservoir 2 through check valve, and the operating air pressure of general air pump is 8Kg/cm
2, in other words, the foam mixing liquid in the fluid reservoir 2 is always 8Kg/cm in the electric automobile running
2Highly pressurised liquid.Residual liquid discharge valve 10 through the bottom can emit foam mixing liquid expired in the fluid reservoir 2.
In each battery case 1 all device temperature sensor 11 or smoke detector 12 are arranged, perhaps simultaneously unit temp sensor 11 and smoke detector 12.Controller 4 is installed on battery case 1 top, controller 4 respectively with temperature sensor 11, smoke detector 12 and magnetic valve 5 and electric motor car on 24V low-tension supply and high-pressure air circuit breaker be electrically connected.
Be illustrated in figure 5 as the circuit control principle figure of controller 4.Be provided with in the controller 4 and amplify comparison circuit, OR circuit, executive circuit; Temperature sensor 11, smoke detector 12 are electrically connected through amplifying comparison circuit and OR circuit respectively; OR circuit is electrically connected with executive circuit; Executive circuit is electrically connected with the tripping mechanism of magnetic valve 5, high-pressure air circuit breaker respectively, and controller 4 is supplied power by vehicle-mounted 24V low-tension supply.When the battery pack in first battery case 1 of electric automobile has unusually (the temperature inside the box too high or have smog) to take place; Temperature sensor 11 in it or smoke detector 12 can be passed to OR circuit through amplifying after comparison circuit amplifies with the signal of sensing; OR circuit sends instructions to executive circuit again; Relay coil J1 Attraction strap moving contact switch J1-1 in the executive circuit, J1-2 are closed simultaneously, and the dropout switch in the high-pressure air circuit breaker is broken off and cut-out electric automobile high-tension circuit, the opens solenoid valve of electromagnetic valve coil DZ1 adhesive simultaneously 5; High pressure foam mixing liquid in the fluid reservoir 2 just can spray in this battery case 1 at once, realizes the automatic fire-extinguishing function of battery case 1; When temperature sensor 11 or smoke detector 12 are malfunctioning when finding fire hazard is arranged, can press the instant fire extinguishment button, execute circuit cutoff high circuit and 5 pairs of battery cases 1 of opens solenoid valve processing of putting out a fire that sends instructions.
The control circuit (9 tunnel) of the controller 4 on all battery cases 1 (9 battery cases) is in parallel; Electric automobile is in the process of operation; Temperature sensor 11 in any battery case 1 detects battery the temperature inside the box, and (general battery normal working temperature is lower than 50 ℃ above setting value; We set in the battery case can not be above 70 ℃) or when when smoke detector 12 detects battery case 1 in, smog being arranged, the magnetic valve 5 of correspondence just can be opened automatically, and the high pressure foam mixing liquid in the fluid reservoir 2 just can spray in this battery case 1 at once; High pressure makes significant foam be full of battery case 1 and covers the battery periphery that generates heat/smolder; Make catch fire hidden danger point and air isolated and suffocate, play the self-extinguishing effect, thereby stop the hidden danger of electric automobile generation ignition/explosion.
Claims (9)
1. battery case automatic fire extinguisher that is used on the electric automobile; Comprise a plurality of battery cases (1); It is characterized in that: it also comprises high pressure fluid reservoir (2), air pump (3) and is installed on the controller (4) on each battery case (1); Said fluid reservoir (2) top is connected with air pump (3) through tracheae; Said fluid reservoir (2) bottom is connected with each battery case (1) through pipeline; Be communicated with on the pipeline of each said battery case (1) and be equipped with magnetic valve (5), in each said battery case (1) all device temperature sensor and/or smoke detector are arranged, said controller (4) respectively with said temperature sensor and/or smoke detector, said magnetic valve (5), electric motor car on 24V low-tension supply and high-pressure air circuit breaker be electrically connected.
2. battery case automatic fire extinguisher according to claim 1 is characterized in that: said air pump (3) is the electric air pump on the electric automobile.
3. battery case automatic fire extinguisher according to claim 1 is characterized in that: said tracheae is provided with Non-return air valve (6).
4. battery case automatic fire extinguisher according to claim 1 is characterized in that: the air inlet on the said fluid reservoir (2) is provided with triple valve (7)
5. battery case automatic fire extinguisher according to claim 1 is characterized in that: said fluid reservoir (2) top is communicated with a high position and adds flow container (8), said fluid reservoir (2) inlet device seal valve (9).
6. battery case automatic fire extinguisher according to claim 1 is characterized in that: said fluid reservoir (2) lower device residual liquid discharge valve (10).
7. battery case automatic fire extinguisher according to claim 1; It is characterized in that: be provided with in the said controller (4) and amplify comparison circuit, OR circuit, executive circuit; Said temperature sensor and/or smoke detector are electrically connected with OR circuit through amplifying comparison circuit respectively; Said OR circuit is electrically connected with executive circuit, and said executive circuit is electrically connected with the tripping mechanism of electromagnetic valve coil, high-pressure air circuit breaker respectively.
8. battery case automatic fire extinguisher according to claim 7 is characterized in that: also be provided with the instant fire extinguishment button that is electrically connected with said executive circuit on the said controller (4).
9. according to the described arbitrary battery case automatic fire extinguisher of claim 1 to 8, it is characterized in that: be equipped with in the said fluid reservoir (2) by fire foam and water liquid mixture prepared by a certain percentage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104337561A CN102512776A (en) | 2011-12-21 | 2011-12-21 | Battery case automatic extinguishing device used on electric vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104337561A CN102512776A (en) | 2011-12-21 | 2011-12-21 | Battery case automatic extinguishing device used on electric vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102512776A true CN102512776A (en) | 2012-06-27 |
Family
ID=46284001
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011104337561A Pending CN102512776A (en) | 2011-12-21 | 2011-12-21 | Battery case automatic extinguishing device used on electric vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102512776A (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102861398A (en) * | 2012-09-24 | 2013-01-09 | 杭州蒙龙机械有限公司 | Fire extinguishing apparatus for battery box |
| CN104124410A (en) * | 2014-08-04 | 2014-10-29 | 奇瑞汽车股份有限公司 | Automatic inflaming-retarding fire-extinguishing system of battery pack of electric vehicle |
| CN105561503A (en) * | 2016-02-29 | 2016-05-11 | 四川华川工业有限公司 | Special fire-extinguishing device for power battery pack |
| CN107243128A (en) * | 2017-06-22 | 2017-10-13 | 哲弗智能系统（上海）有限公司 | It is a kind of with HFC-236fa and the battery fire extinguisher of carbon-dioxide fire engine |
| CN107398049A (en) * | 2017-06-22 | 2017-11-28 | 哲弗智能系统（上海）有限公司 | A kind of on-vehicle battery fire extinguishing structure using mixing extinguishing chemical |
| CN110237457A (en) * | 2018-03-08 | 2019-09-17 | 浙江鼎奕科技发展有限公司 | A kind of automatic fire extinguisher based on Eco-drive |
| CN111645597A (en) * | 2020-05-27 | 2020-09-11 | 安徽安凯汽车股份有限公司 | Intelligent passenger car cabin temperature alarm system and passenger car |
| CN112086882A (en) * | 2020-09-16 | 2020-12-15 | 熊卫明 | Power engineering installation is with block terminal that has fire prevention function |
| CN113694431A (en) * | 2021-09-13 | 2021-11-26 | 湖南省怀化工业中等专业学校(湖南省怀化工业高级技工学校) | Automatic fire extinguishing system for spontaneous combustion of power battery pack in charging process of electric automobile |
| CN116650870A (en) * | 2023-08-01 | 2023-08-29 | 远山建安技术有限公司 | Energy storage device box energy storage power station |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102013711A (en) * | 2010-10-13 | 2011-04-13 | 上海磁浮交通发展有限公司 | High-voltage high-power storage battery protection system and monitoring method thereof |
| CN202366355U (en) * | 2011-12-21 | 2012-08-08 | 珠海银通新动力科技有限公司 | Automatic battery box fire extinguishing device used on electric vehicle |
-
2011
- 2011-12-21 CN CN2011104337561A patent/CN102512776A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102013711A (en) * | 2010-10-13 | 2011-04-13 | 上海磁浮交通发展有限公司 | High-voltage high-power storage battery protection system and monitoring method thereof |
| CN202366355U (en) * | 2011-12-21 | 2012-08-08 | 珠海银通新动力科技有限公司 | Automatic battery box fire extinguishing device used on electric vehicle |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102861398A (en) * | 2012-09-24 | 2013-01-09 | 杭州蒙龙机械有限公司 | Fire extinguishing apparatus for battery box |
| CN104124410A (en) * | 2014-08-04 | 2014-10-29 | 奇瑞汽车股份有限公司 | Automatic inflaming-retarding fire-extinguishing system of battery pack of electric vehicle |
| CN105561503A (en) * | 2016-02-29 | 2016-05-11 | 四川华川工业有限公司 | Special fire-extinguishing device for power battery pack |
| CN107243128A (en) * | 2017-06-22 | 2017-10-13 | 哲弗智能系统（上海）有限公司 | It is a kind of with HFC-236fa and the battery fire extinguisher of carbon-dioxide fire engine |
| CN107398049A (en) * | 2017-06-22 | 2017-11-28 | 哲弗智能系统（上海）有限公司 | A kind of on-vehicle battery fire extinguishing structure using mixing extinguishing chemical |
| CN110237457A (en) * | 2018-03-08 | 2019-09-17 | 浙江鼎奕科技发展有限公司 | A kind of automatic fire extinguisher based on Eco-drive |
| CN111645597A (en) * | 2020-05-27 | 2020-09-11 | 安徽安凯汽车股份有限公司 | Intelligent passenger car cabin temperature alarm system and passenger car |
| CN112086882A (en) * | 2020-09-16 | 2020-12-15 | 熊卫明 | Power engineering installation is with block terminal that has fire prevention function |
| CN113694431A (en) * | 2021-09-13 | 2021-11-26 | 湖南省怀化工业中等专业学校(湖南省怀化工业高级技工学校) | Automatic fire extinguishing system for spontaneous combustion of power battery pack in charging process of electric automobile |
| CN116650870A (en) * | 2023-08-01 | 2023-08-29 | 远山建安技术有限公司 | Energy storage device box energy storage power station |
| CN116650870B (en) * | 2023-08-01 | 2023-10-03 | 远山建安技术有限公司 | Energy storage device box energy storage power station |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202366355U (en) | Automatic battery box fire extinguishing device used on electric vehicle | |
| CN102512776A (en) | Battery case automatic extinguishing device used on electric vehicle | |
| CN102470261B (en) | Method for fighting and/or preventing fires in lithium ion cells and lithium ion polymer cells | |
| CN205598471U (en) | Safe battery box and safety protection system thereof | |
| CN205598472U (en) | Vehicle safety battery box and vehicle power safety coefficient | |
| TWI690350B (en) | System and method for battery fire extinguishing through flooding the battery | |
| CN209405543U (en) | Energy storage container fire-fighting system | |
| CN204946959U (en) | A kind of battery modules | |
| CN207353336U (en) | A kind of power lithium battery box with extinguishing device | |
| JP2016092007A (en) | Thermal runaway suppression system of secondary battery | |
| CN105561503A (en) | Special fire-extinguishing device for power battery pack | |
| CN203071188U (en) | Electric automobile storage battery | |
| CN215608917U (en) | Vehicle-mounted power battery box protection system, vehicle-mounted power supply system and electric vehicle | |
| CN212593613U (en) | Energy storage battery cabin fire extinguishing system | |
| KR20210008543A (en) | Automatic fire extinguishing system for exclusive use of electric vehicle battery frame using liquid nitrogen | |
| CN113230560A (en) | Fire extinguishing and explosion preventing method for lithium ion electrochemical energy storage system | |
| CN115120907A (en) | Fire extinguishing system for non-pressure storage battery box and battery system | |
| CN105140437A (en) | Battery module | |
| CN207587793U (en) | A kind of battery case, safety battery, battery modules, battery case and vehicle | |
| CN202997000U (en) | Protective device for battery box of electric car | |
| CN217391442U (en) | Vehicle-mounted fire retardant gas, fire extinguishing agent and fire water combined type fire fighting device | |
| CN110801586A (en) | Solid fire extinguishing system in closed cabinet body | |
| CN113422149B (en) | Lithium iron phosphate battery system with high energy and explosion-proof functions | |
| CN216545749U (en) | Power protection system, power supply system and electric vehicle for efficiently suppressing fire | |
| CN210927186U (en) | Battery safety charging case |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20120627 |