CN202366355U - Automatic battery box fire extinguishing device used on electric vehicle - Google Patents
Automatic battery box fire extinguishing device used on electric vehicle Download PDFInfo
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- CN202366355U CN202366355U CN2011205416072U CN201120541607U CN202366355U CN 202366355 U CN202366355 U CN 202366355U CN 2011205416072 U CN2011205416072 U CN 2011205416072U CN 201120541607 U CN201120541607 U CN 201120541607U CN 202366355 U CN202366355 U CN 202366355U
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- battery case
- fluid reservoir
- circuit
- fire extinguisher
- automatic fire
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Abstract
The utility model discloses an automatic battery box fire extinguishing device used on an electric vehicle. The automatic battery box fire extinguishing device comprises a plurality of battery boxes (1), a high-pressure liquid storage tank (2), a gas pump (3) and controllers (4), wherein the controllers (4) are arranged on the upper part of each battery box (1); the liquid storage tank (2) is filled with a mixed liquid which is prepared by a foam extinguishing agent and water in a certain ratio; the upper part of the liquid storage tank (2) is communicated with the gas pump (3) through a gas pipe; the lower part of the liquid storage tank (2) is communicated with each battery box (1) through pipelines; an electromagnetic valve (5) is arranged on each of the pipelines which are communicated with battery boxes (1); a temperature sensor and/or a smoke detector are/is arranged in each battery box (1); and the controllers (4) are respectively connected with each temperature sensor and/or smoke detector, each electromagnetic valve (5), a 2.4V low-voltage power supply and a high-voltage air circuit breaker on the electric vehicle. The automatic battery box fire extinguishing device is used on the electric vehicle, and can effectively prevent the battery boxes from fire/explosion.
Description
Technical field
The utility model relates to the electric automobile field, particularly relates 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
The utility model problem to be solved 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.
The technical scheme of the utility model is: the utility model comprises a plurality of battery cases, high pressure fluid reservoir, air pump and is 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 beneficial effect of the utility model is: the utility model 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; Fluid reservoir is through each battery case of cross current; On each battery case water inlet pipe magnetic valve is set, battery case interior arrangement temperature sensor or smoke detector, or while unit temp sensor and smoke detector; When the temperature sensor in certain battery case detects battery the temperature inside the box above setting value, perhaps in smoke detector detects battery case, smog being arranged; Controller receives the high-tension circuit opens solenoid valve simultaneously of cutting off battery pack behind the signal of temperature sensor or smoke detector, and the high pressure foam mixing liquid in the fluid reservoir just can spray in this battery case at once, and high pressure makes significant foam be full of battery case and to cover the cell that generates heat/smolder peripheral; Make catch fire hidden danger point and air isolated and suffocate, 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 the structure principle chart of the utility model;
Fig. 2 is the structure diagram of the utility model high pressure fluid reservoir;
Fig. 3 is the structure diagram of the utility model battery case;
Fig. 4 is the enlarged diagram of I portion among Fig. 3;
Fig. 5 is the utility model circuit control principle sketch.
The specific embodiment
Below in conjunction with accompanying drawing the embodiment of the utility model is made concrete detailed description.
Like Fig. 1, Fig. 2, Fig. 3, shown in Figure 4, the utility model comprises a plurality of battery cases 1 (the utility model comprises 9 battery cases, and each battery case voltage is 28.8V), high pressure fluid reservoir 2, air pump 3 and is 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 |
|---|---|---|---|
| CN2011205416072U CN202366355U (en) | 2011-12-21 | 2011-12-21 | Automatic battery box fire extinguishing device used on electric vehicle |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205416072U CN202366355U (en) | 2011-12-21 | 2011-12-21 | Automatic battery box fire extinguishing device used on electric vehicle |
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| CN202366355U true CN202366355U (en) | 2012-08-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011205416072U Expired - Lifetime CN202366355U (en) | 2011-12-21 | 2011-12-21 | Automatic battery box fire extinguishing device used on electric vehicle |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102512776A (en) * | 2011-12-21 | 2012-06-27 | 珠海银通新动力科技有限公司 | Battery case automatic extinguishing device used on electric vehicle |
| CN102961835A (en) * | 2012-11-24 | 2013-03-13 | 李良杰 | Automatic fire sprinkler for vehicle engine housing |
| CN103252034A (en) * | 2013-06-13 | 2013-08-21 | 王江 | Omnibearing fire extinguishing device for vehicle |
| CN104548421A (en) * | 2013-10-17 | 2015-04-29 | 江瑞华 | Automatic fire extinguishing device |
| WO2015120742A1 (en) * | 2014-02-13 | 2015-08-20 | 浙江吉利汽车研究院有限公司 | Thermal management and automatic fire-extinguishing system of automobile battery |
| CN109011263A (en) * | 2018-10-31 | 2018-12-18 | 国网湖南省电力有限公司 | A kind of large size stored energy power battery pile fire extinguishing system and its extinguishing method |
| CN110115815A (en) * | 2019-04-10 | 2019-08-13 | 惠州亿纬锂能股份有限公司 | New energy resource power battery system liquid injecting type fire-fighting system |
| CN110604893A (en) * | 2019-10-18 | 2019-12-24 | 杭州新纪元消防科技有限公司 | Perfluorohexanone extinguishing device |
-
2011
- 2011-12-21 CN CN2011205416072U patent/CN202366355U/en not_active Expired - Lifetime
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102512776A (en) * | 2011-12-21 | 2012-06-27 | 珠海银通新动力科技有限公司 | Battery case automatic extinguishing device used on electric vehicle |
| CN102961835A (en) * | 2012-11-24 | 2013-03-13 | 李良杰 | Automatic fire sprinkler for vehicle engine housing |
| CN103252034A (en) * | 2013-06-13 | 2013-08-21 | 王江 | Omnibearing fire extinguishing device for vehicle |
| CN104548421A (en) * | 2013-10-17 | 2015-04-29 | 江瑞华 | Automatic fire extinguishing device |
| WO2015120742A1 (en) * | 2014-02-13 | 2015-08-20 | 浙江吉利汽车研究院有限公司 | Thermal management and automatic fire-extinguishing system of automobile battery |
| EP3107145A4 (en) * | 2014-02-13 | 2017-03-22 | Zhejiang Geely Automobile Research Institute Co., Ltd. | Thermal management and automatic fire-extinguishing system of automobile battery |
| JP2017512359A (en) * | 2014-02-13 | 2017-05-18 | 浙江吉利汽車研究院有限公司Ｚｈｅｊｉａｎｇ Ｇｅｅｌｙ Ａｕｔｏｍｏｂｉｌｅ Ｒｅｓｅａｒｃｈ Ｉｎｓｔｉｔｕｔｅ Ｃｏ．， Ｌｔｄ | Automotive battery thermal management and automatic fire extinguishing system |
| US10035032B2 (en) | 2014-02-13 | 2018-07-31 | Zhejiang Geely Automobile Research Institute Co., Ltd. | Thermal management and automatic fire-extinguishing system of vehicle battery |
| CN109011263A (en) * | 2018-10-31 | 2018-12-18 | 国网湖南省电力有限公司 | A kind of large size stored energy power battery pile fire extinguishing system and its extinguishing method |
| CN110115815A (en) * | 2019-04-10 | 2019-08-13 | 惠州亿纬锂能股份有限公司 | New energy resource power battery system liquid injecting type fire-fighting system |
| CN110604893A (en) * | 2019-10-18 | 2019-12-24 | 杭州新纪元消防科技有限公司 | Perfluorohexanone extinguishing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: ZHUHAI YINLONG ELECTRIC CO., LTD. Free format text: FORMER NAME: ZHUHAI YINTONG NEW POWER TECHNOLOGY CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 519040 Guangdong province Zhuhai City Sanzao town Jinwan District Jinhu Road No. 16 Patentee after: ZHUHAI YINLONG ELECTRICAL APPLIANCE CO., LTD. Patentee after: Qin Meilian Address before: 519040 Guangdong province Zhuhai City Sanzao town Jinwan District Jinhu Road No. 16 Patentee before: Zhuhai Yintong New Power Technology Co.,Ltd. Patentee before: Qin Meilian |
|
| CX01 | Expiry of patent term |
Granted publication date: 20120808 |
|
| CX01 | Expiry of patent term |