CN205122719U - Power lithium battery leakage reports to police and puts out a fire integrated device - Google Patents

Power lithium battery leakage reports to police and puts out a fire integrated device Download PDF

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Publication number
CN205122719U
CN205122719U CN201520874430.6U CN201520874430U CN205122719U CN 205122719 U CN205122719 U CN 205122719U CN 201520874430 U CN201520874430 U CN 201520874430U CN 205122719 U CN205122719 U CN 205122719U
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China
Prior art keywords
detection module
fire
circuit board
lithium battery
police
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CN201520874430.6U
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Inventor
余岑
郭玉坤
李东风
杨春旺
李如意
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ANHUI XINHE DEFENSE EQUIPMENT TECHNOLOGY Co Ltd
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ANHUI XINHE DEFENSE EQUIPMENT TECHNOLOGY Co Ltd
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    • 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

Abstract

The utility model discloses a power lithium battery leakage reports to police and puts out a fire integrated device, including the detection module and the module of putting out a fire, gas sensor, smoke transducer, temperature sensor, detection module circuit board that detection module includes, gas sensor, smoke transducer, temperature sensor, continuous with detection module circuit board respectively, the module of putting out a fire includes electric igniter, S type aerosol fire extinguisher, electric igniter links to each other with S type aerosol fire extinguisher, electric igniter links to each other with detection module's detection module circuit board, detection module circuit board links to each other with battery management system's power module and sensor CAN bus. The utility model discloses can implement on -line measuring, report to the police, remind the inside hidden danger that driver and maintainer investigation power lithium cell after sale organized, the low power dissipation is small, is fit for electricelectric motor car or hybrid vehicle needs and carries out early warning of conflagration hidden danger and the early occasion that restraines of conflagration to power lithium cell case.

Description

A kind of dynamic lithium battery leakage is reported to the police and fire-extinguishing integrated device
Technical field
The utility model relates to lithium battery leakage warning and fire-fighting technique, is specifically related to a kind of dynamic lithium battery leakage and reports to the police and fire-extinguishing integrated device.
Background technology
New-energy automobile is one of China seven great strategy new industry, the Ministry of Finance, Ministry of Industry and Information etc. in 2013 four ministries and commissions combine appearance " notice about carrying on new-energy automobile and apply work ", at 2013 ~ 2015, popularization subsidy application is carried out to new-energy automobile, but from implementation result, the key issue of new-energy automobile does not lie in subsidy, and be the reception degree of the innovation of battery technology, auxiliary facility construction and consumer, wherein the safety and reliability of battery is particularly crucial.
Recent years, the query that is subject to of fail safe of dynamic lithium battery got more and more, pure electric vehicle and applying of hybrid electric vehicle cause vehicle spontaneous combustion event to increase, only 7 new forms of energy bus events on fire are there are since 2015, such as Xiamen bus spontaneous combustion event causes tens cars to burn and the serious consequence of 1 people's death, causes larger loss and negative effect to vehicle producer and battery producer.
Department of Transportation implemented industry standard JT/T325-2013 " operating passenger car Type division and ranking " No. 1 amendment and JT/T888-2014 " bus Type division and ranking " No. 1 amendment and increased pure electric bus standard newly on August 1st, 2015, wherein required that pure electrobus and hybrid power bus should be furnished with power battery box fire extinguishing apparatus special.On August 6th, 2015, Ministry of Industry and Information issues " energy-conservationly applying with new-energy automobile the notice that potential safety hazard investigates control about carrying out ", and each Model City of notice request will investigate energy-saving automobile, new-energy automobile, charging infrastructure, storing cycle and the battery case storage space applied since 2009 and supporting management measure.
Dynamic lithium battery is formed by the connection in series-parallel of multiple baby battery block, and the electrode of battery block inside may produce some gases in the activation process of charging, and cause pressure in battery block to increase, pressure acquires a certain degree and can cause outer casing rupture, causes electrolyte to reveal; The electrolyte volatility of dynamic lithium battery is comparatively strong, inflammable, and meet water and to react generation heat, this feature causes battery easily on fire when charging, if be leakage during charging, just on fire in the process of moving, impact will be more severe.The battery block of dynamic lithium battery is insulated by outsourcing plastic layer, and plastics can produce a large amount of smog when heated combustion in battery case, and therefore smog sensing can obtain the condition of a fire alarm of more morning relative to temperature sensing.
The fire extinguishing difficult point of power lithium battery box is that gap, inner space is narrower, and dry powder extinguisher is difficult to effective covering, and water series fire-extinguisher can cause short circuit and not be suitable for battery case, and other gas fire extinguisher then due to volume and safe restriction, is difficult to be arranged on automobile.Ideal fire extinguishing means adopt S type aerosol fire-extinguishing, compare the K type aerosol fire extinguisher of more early generation, S type aerosol fire extinguisher is applicable to put out electric fire, aerosol particles is non-conductive, in battery surface noresidue, extinguishing mechanism comprises that inert gas suffocates, combustion reaction chain blocks and triple effect of absorbing heat.
Utility model content
The purpose of this utility model is to provide a kind of dynamic lithium battery leakage and reports to the police and fire-extinguishing integrated device, power lithium battery box electrolyte inside can be detected in real time and reveal volatilization gas, smog, air themperature, sensing data is sent to battery management system (BMS), start S type aerosol fire extinguisher simultaneously when producing a large amount of smog and suppress the dynamic lithium battery condition of a fire, volume low in energy consumption is little, is applicable to pure electric vehicle or hybrid electric vehicle needs and carries out to power lithium battery box the occasion that disaster hidden-trouble early warning and fire suppress in early days.
For achieving the above object, the utility model have employed following technical scheme:
A kind of dynamic lithium battery leakage is reported to the police and fire-extinguishing integrated device, comprises detection module and fire suppression module, the gas sensor that described detection module comprises, Smoke Sensor, temperature sensor, detection module circuit board; Described gas sensor, Smoke Sensor, temperature sensor, to be connected with detection module circuit board respectively; Described fire suppression module comprises electric igniter, S type aerosol fire extinguisher; Described electric igniter is connected with S type aerosol fire extinguisher; Electric igniter is connected with the detection module circuit board of detection module; Described detection module circuit board is connected with transducer CAN with the supply module of battery management system.
Further, described gas sensor adopts the gas sensor of based thin film semiconductor, the gas sensor of described based thin film semiconductor to be gas sensor adopt on the MEMS substrate of integrated interdigital electrode and micro-heater template is micro-/micro-nano structure permutation technology plating semiconductive thin film, then adopt noble metal or material with carbon element or its composite material to carry out catalysis modification to gas sensor, make gas sensor produce selective response to the volatile substances in lithium battery electrolytes.
Further, described fire suppression module also comprises heat-sensitive line, and heat-sensitive line is connected with S type aerosol fire extinguisher, and heat-sensitive line is arranged on top blind flange in power lithium battery box or sidewall, meets high temperature or naked light starts S type aerosol fire extinguisher.
Further, described detection module also comprises mini-fan, mini-fan is connected with detection module circuit board, described detection module box body there are an air inlet and a gas outlet, the detection module circuit board backward mini-fan that is energized is powered the airflow circulating produced inside and outside box body, accelerates the response to leakage and smog.
Further, described detection module circuit board is connected by four-core shielding conductor with the supply module of battery management system, quad definition be respectively: ground connection, power supply just, communication just, communication bear, shielding layer grounding.
Further, described detection module circuit board is connected by two core shielded type cables with electric igniter, and detection module circuit board exports 24V direct current can excite electric igniter, electric igniter and then excite S type aerosol fire extinguisher.
Further, the Smoke Sensor of described detection module adopts scattering type Smoke Sensor.
From such scheme, dynamic lithium battery leakage of the present utility model is reported to the police and fire-extinguishing integrated device detects in battery case whether there is leakage situation by the gas sensor of based thin film semiconductor technology, send warning in time, maintenance process was carried out before worsening further, if breaking out of fire, device triggers automatically controlled and heat-sensitive line dual mode startup S type aerosol fire extinguisher by smog sensing, produce a large amount of inert gas and aerosol particle is full of battery case, suppress in early days burn and absorb heat at fire.
The leakage of the utility model dynamic lithium battery is reported to the police and fire-extinguishing integrated device has following advantage:
1, the utility model can implement electrolyte volatilization gas concentration, smokescope, the air themperature in on-line checkingi power lithium battery box, warning is sent to leakage, smog, high temperature, reminds driver and after-sales service personnel to investigate the inside hidden danger of dynamic lithium battery group.
2, the early stage startup S type aerosol fire extinguisher that occurs at fire of the utility model, suppresses the burning of dynamic lithium battery to spread, is convenient to further disposal.
3, the utility model can start S type aerosol fire extinguisher without normal under electric power thus supplied, and reliability is high.
4, the leakage of the utility model dynamic lithium battery is reported to the police and fire-extinguishing integrated device power consumption is low, volume is little, is applicable to be integrated in pure electronic, the civilian vehicle of hybrid power and the security protection of bus battery case.
Accompanying drawing explanation
Fig. 1 is frame structure schematic diagram of the present utility model;
Fig. 2 is the scheme of installation of the gas sensor of based thin film semiconductor technology in the utility model, Smoke Sensor, temperature sensor, mini-fan, detection module circuit board;
Fig. 3 is the utility model based on the scheme of installation of the S type aerosol fire extinguisher of military pyrotechnic, heat-sensitive line, electric igniter;
Fig. 4 is the scheme of installation of the utility model detection module and fire suppression module.
Embodiment
Below in conjunction with accompanying drawing, preferred embodiment of the present utility model is described in detail, to make advantage of the present utility model and feature can be easier to be readily appreciated by one skilled in the art, thus more explicit defining is made to protection range of the present utility model.
As shown in Figure 1, a kind of dynamic lithium battery leakage of the present embodiment is reported to the police and fire-extinguishing integrated device comprises detection module 1 and fire suppression module 2; Described detection module 1 comprises gas sensor 11, Smoke Sensor 12, temperature sensor 13, mini-fan 14, the detection module circuit board 15 of based thin film semiconductor technology; Described gas sensor 11, Smoke Sensor 12, temperature sensor 13, mini-fan 14 are connected with detection module circuit board 15 respectively; Described detection module circuit board 15 and the DC24V of battery management system (BMS) power and to be connected with transducer CAN; Described fire suppression module 2 comprises heat-sensitive line 21, electric igniter 22, S type aerosol fire extinguisher 23 based on military pyrotechnic; Described heat-sensitive line 21, electric igniter 22 are connected with S type aerosol fire extinguisher 23 respectively, and electric igniter 22 is connected with detection module circuit board 15.
The gas sensor 11 of described based thin film semiconductor refer to gas sensor 11 adopt on the MEMS substrate of integrated interdigital electrode and micro-heater template micro-/micro-nano structure permutation technology plating semiconductive thin film, then adopt noble metal, material with carbon element (such as Graphene, carbon nano-particle) and composite material thereof to carry out catalysis modification to gas sensor 11, make the volatile substances in gas sensor 11 pairs of lithium battery electrolytes produce selective response; Semiconductor sensitive thin film thickness < 2 μm on the gas sensor 11 of described based thin film semiconductor, compared with semiconductor gas sensor (thickness G reatT.GreaT.GT 10 μm) general in the market, highly sensitive, fast response time.
MEMS substrate length of side 3mm, wherein insert and refer to that electrode is of a size of 150 μm × 150 μm, insert and refer to that electrode surface covers the semiconductive thin film modified through catalysis, slotting finger electrode and semiconductive thin film are heated to 270 ± 10 DEG C by micro-heater, make it be in optimum Working.Less slotting finger electrode can realize the Rapid Variable Design of working temperature, reduces transducer warm-up time, and significantly reduces heating power consumption.MEMS substrate corner distributes the platinum pad of four 1mm × 1mm, wherein two platinum pads are connected with interdigital electrode, two other platinum pad is connected with micro-heater, four platinum pads adopt gold thread to be welded on transducer outer terminal, and then are weldingly fixed on detection module circuit board 15 by binding post.Detection module 15 provides direct current 3V to heat power supply to micro-heater, is inserted the resistance value and then conversion electrolyte volatilization gas concentration that refer to electrode by A/D converted measurement after dividing potential drop simultaneously.
The Response Mechanism of gas sensor 11 pairs of lithium battery electrolytes is: additive conventional in electrolyte is as low in boiling point substances such as phenyl ring class, alcohols, high volatility, when lithium battery electrolytes occurs to leak, it can volatilize corresponding characteristic gas, these characteristic gas make the carrier concentration in semiconductive thin film or distribution change, and then the resistance of semiconductive thin film is changed, the size of electrolyte leakage and electrolyte amount of leakage can be judged whether by the change of measuring semiconductor thin film resistors.
Described detection module 1 box body has an air inlet and a gas outlet, detection module circuit board 15 backward mini-fan 14 power supply that is energized produces airflow circulating inside and outside box body, accelerates the response to leakage and smog.
Described Smoke Sensor 12 adopts scattering type smoke detection technology, does not limit, fast response time by smog kind.The sensing chamber of Smoke Sensor 12 is built with luminescent device and sensitive device.Under normal circumstances, sensitive device does not receive light that luminescent device sends, thus do not produce photoelectric current.When smog enters sensing chamber, due to the effect of smoke particle, the light that luminescent device is launched produces diffusion, this diffused light is received by sensitive device, the impedance of sensitive device is changed, produce photoelectric current, thus achieve the function that smoke signal changes the signal of telecommunication into, detection module circuit board 15 is by the size of A/D converted measurement photoelectric current and then the concentration of conversion smog.
Described heat-sensitive line 21 is arranged on top blind flange in power lithium battery box or sidewall, meets high temperature or naked light starts S type aerosol fire extinguisher 23, dynamic lithium battery leakage is reported to the police and fire-extinguishing integrated device also has fire-extinguishing function concurrently under complete powering-off state.
Described S type aerosol fire extinguisher 23 excites a large amount of inert gas of rear lasting generation and aerosol particles, fills space in battery case, blocks burning, and aerosol particles heat is melted, and absorbs the amount of heat of flame and heating position, is applicable to put out E class electrically fiery.
As shown in Figure 2, gas sensor 11 and temperature sensor 13 welded and installed are on detection module circuit board 15; Smoke Sensor 12 is arranged on the box body side plate of detection module 1, is connected with detection module circuit board 15 by winding displacement; Mini-fan 14 is arranged on the box body side plate of detection module 1, is connected with detection module 15 by two power lines; Mini-fan 14 produces detection module 1 and extraneous gas flow, accelerates the response speed of gas sensor 11, Smoke Sensor 12, temperature sensor 13.In the present embodiment, the overall dimension of detection module 1 is 120mm*120mm*34mm, weight 200g, detection peak power consumption≤5W, average power consumption≤1W; Gas sensor 11 adopt on the MEMS substrate of integrated interdigital electrode and micro-heater template micro-/micro-nano structure permutation technology plating SnO2 film, then adopt precious metal palladium (Pd) to carry out catalysis modification to it, make the phenyl ring class in gas sensor 11 pairs of lithium battery electrolytes and alcohols volatile substances produce selective response; The smokescope that the every 10ms of Smoke Sensor 12 carries out a light scatter intensity principle detects; Temperature sensor 13 adopts DS18B20, mini-fan 14 size 20mm*20mm*8mm, fluid bearing, and DC5V powers, and useful life can reach 60000h; In the DC24V power supply that detection module circuit board 15 is connected to power-supply management system (BMS) and transducer CAN, by CAN protocol, image data is sent to battery management system (BMS), communication baud rate 250kbps.
As shown in Figure 3, heat-sensitive line 21 and electric igniter 22 embed and are arranged on S type aerosol fire extinguisher 23.Heat-sensitive line 21 starts immediately at high temperature or when meeting naked light, excites S type aerosol fire extinguisher 23; Electric igniter 22 is connected with detection module circuit board 15, when detection module circuit board 15 detects that smokescope is larger, excites electric igniter 22, carries out early stage suppression put out fire.In the present embodiment, the start-up temperature of heat-sensitive line 21 is 170 DEG C, and the excitation voltage of electric igniter 22 is DC24V, S type aerosol fire extinguisher 23 attack times≤30s, fire extinguishing effectiveness 100g/m3, stores the time limit 10 years, the fire extinguisher volume of 30g medicament specification weight 360g, small in volume, convenient installation.S type aerosol fire extinguisher 23 excites a large amount of N2 and the CO2 gas of rear generation, and strontium (Sr) salt particle aerosol.
As shown in Figure 4, detection module 1 and fire suppression module 2 are arranged on top blind flange in power lithium battery box or sidewall, detection module 1 is connected with battery management system (BMS) by four-core shielded type cable, and fire suppression module 2 is connected with fire suppression module by two core shielded type cables.In the present embodiment, detection module 1 and fire suppression module 2 are arranged in the top blind flange in power lithium battery box, and the specification of four-core shielded type cable is RVVP4*0.3, and the specification of two core shielded type cables is RVVP2*0.3.
Above-described embodiment is only be described preferred implementation of the present utility model; not scope of the present utility model is limited; under the prerequisite not departing from the utility model design spirit; the various distortion that those of ordinary skill in the art make the technical solution of the utility model and improvement, all should fall in protection range that the utility model claims determine.

Claims (7)

1. a dynamic lithium battery leakage is reported to the police and fire-extinguishing integrated device, comprise detection module (1) and fire suppression module (2), it is characterized in that: the gas sensor (11) that described detection module (1) comprises, Smoke Sensor (12), temperature sensor (13), detection module circuit board (15); Described gas sensor (11), Smoke Sensor (12), temperature sensor (13), to be connected with detection module circuit board (15) respectively; Described fire suppression module (2) comprises electric igniter (22), S type aerosol fire extinguisher (23); Described electric igniter (22) is connected with S type aerosol fire extinguisher (23); Electric igniter (22) is connected with the detection module circuit board (15) of detection module (1); Described detection module circuit board (15) is connected with transducer CAN with the supply module of battery management system.
2. dynamic lithium battery leakage according to claim 1 is reported to the police and fire-extinguishing integrated device, it is characterized in that: described gas sensor (11) adopts the gas sensor of based thin film semiconductor.
3. dynamic lithium battery leakage according to claim 1 and 2 is reported to the police and fire-extinguishing integrated device, it is characterized in that: described fire suppression module (2) also comprises heat-sensitive line (21), heat-sensitive line (21) is connected with S type aerosol fire extinguisher (23), heat-sensitive line (21) is arranged on top blind flange in power lithium battery box or sidewall, meets high temperature or naked light starts S type aerosol fire extinguisher (23).
4. dynamic lithium battery leakage according to claim 3 is reported to the police and fire-extinguishing integrated device, it is characterized in that: described detection module (1) also comprises mini-fan (14), mini-fan (14) is connected with detection module circuit board (15), described detection module (1) box body has an air inlet and a gas outlet, detection module circuit board (15) backward mini-fan (14) power supply that is energized produces airflow circulating inside and outside box body.
5. dynamic lithium battery leakage according to claim 4 is reported to the police and fire-extinguishing integrated device, it is characterized in that: described Smoke Sensor (12) adopts scattering type Smoke Sensor.
6. dynamic lithium battery leakage according to claim 5 is reported to the police and fire-extinguishing integrated device, it is characterized in that: described detection module circuit board (15) is connected by four-core shielding conductor with the supply module of battery management system, quad definition be respectively: ground connection, power supply just, communication just, communication bear, shielding layer grounding.
7. dynamic lithium battery leakage according to claim 6 is reported to the police and fire-extinguishing integrated device, it is characterized in that: described detection module circuit board (15) is connected by two core shielded type cables with electric igniter (22), detection module circuit board (15) exports 24V direct current can excite electric igniter (22), electric igniter (22) and then excite S type aerosol fire extinguisher (23).
CN201520874430.6U 2015-11-03 2015-11-03 Power lithium battery leakage reports to police and puts out a fire integrated device Active CN205122719U (en)

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105280974A (en) * 2015-11-03 2016-01-27 安徽芯核防务装备技术股份有限公司 Power lithium battery leakage alarm and extinguishment integrated device
CN105716391A (en) * 2016-04-22 2016-06-29 苏州诺瑞达新材料科技有限公司 Safety protection device of air blast drying machine
CN107221720A (en) * 2017-07-05 2017-09-29 浙江众泰汽车制造有限公司 The cold cell p ack leakages protection system of liquid and the automobile using the system
CN111028459A (en) * 2019-12-10 2020-04-17 安徽芯核防务装备技术股份有限公司 Method and device for detecting fire of battery box with low power consumption
WO2020172427A1 (en) * 2019-02-20 2020-08-27 Rivian Ip Holdings, Llc Battery module gas sensor for battery cell monitoring
CN111815911A (en) * 2020-06-12 2020-10-23 中国船舶重工集团公司第七二四研究所 Cooling liquid leakage monitoring method based on VOC detection
WO2021093581A1 (en) * 2019-11-15 2021-05-20 宁德时代新能源科技股份有限公司 Battery box, fabrication method therefor and apparatus containing battery box
RU2788246C1 (en) * 2022-02-08 2023-01-17 Андрей Олегович Минаев Gas fire extinguishing module (options)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105280974A (en) * 2015-11-03 2016-01-27 安徽芯核防务装备技术股份有限公司 Power lithium battery leakage alarm and extinguishment integrated device
CN105716391A (en) * 2016-04-22 2016-06-29 苏州诺瑞达新材料科技有限公司 Safety protection device of air blast drying machine
CN105716391B (en) * 2016-04-22 2017-12-22 苏州诺瑞达新材料科技有限公司 A kind of blast drier safety device
CN107221720A (en) * 2017-07-05 2017-09-29 浙江众泰汽车制造有限公司 The cold cell p ack leakages protection system of liquid and the automobile using the system
WO2020172427A1 (en) * 2019-02-20 2020-08-27 Rivian Ip Holdings, Llc Battery module gas sensor for battery cell monitoring
US11450918B2 (en) 2019-02-20 2022-09-20 Rivian Ip Holdings, Llc Battery module gas sensor for battery cell monitoring
WO2021093581A1 (en) * 2019-11-15 2021-05-20 宁德时代新能源科技股份有限公司 Battery box, fabrication method therefor and apparatus containing battery box
US11799153B2 (en) 2019-11-15 2023-10-24 Contemporary Amperex Technology Co., Limited Battery casing, method for manufacturing the same, and device containing battery casing
CN111028459A (en) * 2019-12-10 2020-04-17 安徽芯核防务装备技术股份有限公司 Method and device for detecting fire of battery box with low power consumption
CN111815911A (en) * 2020-06-12 2020-10-23 中国船舶重工集团公司第七二四研究所 Cooling liquid leakage monitoring method based on VOC detection
RU2788246C1 (en) * 2022-02-08 2023-01-17 Андрей Олегович Минаев Gas fire extinguishing module (options)

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