CN105140437A - Battery module - Google Patents
Battery module Download PDFInfo
- Publication number
- CN105140437A CN105140437A CN201510533105.8A CN201510533105A CN105140437A CN 105140437 A CN105140437 A CN 105140437A CN 201510533105 A CN201510533105 A CN 201510533105A CN 105140437 A CN105140437 A CN 105140437A
- Authority
- CN
- China
- Prior art keywords
- battery
- fire
- dry powder
- battery modules
- elastic arm
- 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.)
- Withdrawn
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/30—Arrangements for facilitating escape of gases
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
- H01M2010/4271—Battery management systems including electronic circuits, e.g. control of current or voltage to keep battery in healthy state, cell balancing
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- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Abstract
The invention relates to a battery module. The battery module comprises a shell and a battery pack arranged in the shell and further comprises a smoke sensor, a dry powder extinguisher and a controller, wherein the shell is provided with a pressure relieving valve, the smoke sensor is arranged near the pressure relieving valve, and the controller controls the dry powder extinguisher to conduct extinguishment after judging that the pressure relieving valve is opened under a fire or explosion. According to the battery module, the pressure relieving valve is arranged on the shell and is opened first when the battery is on fire, and when an explosion occurs, the pressure relieving valve explodes or is opened usually, so that the fire or explosion of the battery module is found out quickly and the dry powder extinguisher is started for extinguishment. The usage of the dry powder extinguisher is not affected by the environment or battery electrolyte, and can effectively put out a fire and prevent the fire from spreading.
Description
Technical field
The present invention relates to battery group technology field, specifically provide a kind of battery modules with extinguishing device.
Background technology
Battery (Battery) refers to fill electrolyte solution and metal electrode with the segment space of the cup of generation current, groove or other containers or clad vessel, chemical energy can be become the device of electric energy.Have positive pole, negative pole point.Along with the progress of science and technology, battery general reference can produce the midget plant of electric energy.As solar cell.The performance parameter of battery mainly contains electromotive force, capacity, specific energy and resistance.Utilize battery as energy source, can obtain that there is burning voltage, stabling current, long-time stable is powered, by the electric current that ectocine is very little, and battery structure is simple, easy to carry, discharge and recharge is easy to operation, is not subject to the impact of outside climatic and temperature, stable and reliable for performance, the various aspects in modern society's life play great role.
Battery modules is the multiple batteries be combined in serial or parallel connection mode.Battery modules in parallel requires that each cell voltage is identical, the voltage exported equals the voltage of a battery, batteries in parallel connection module can provide stronger electric current. and series-connected cell module does not have too much requirement, as long as the capacity difference of guarantee battery is seldom. and series-connected cell module can provide higher voltage.
Very extensive in our life of battery modules, TV remote controller, electronic toy, has series-connected cell module in flashlight.Existing electric automobile, electric motorcycle or hybrid electric vehicle all employ battery modules.
The cell that battery modules mainly comprises housing, to be arranged in fixed mount multiple arranges and battery modules administration module.Housing plays the effects such as location, shock insulation, anticollision, explosion-proof, insulation to battery.Battery management system is the important tie of the equipment connecting battery modules and use battery modules, and its major function comprises: battery physical parameter Real-Time Monitoring; Battery status is estimated; Inline diagnosis and early warning; Charge and discharge and preliminary filling control; Balanced management and heat management etc.
But, in the process used, if because of the sporadic fault of battery management system, cause the management of battery management system to be lost efficacy as short circuit causes the burning of device, sensor failure or connector to loosen the factors such as the loose contact caused; Winding displacement and battery are to the bad sparking caused of line contact; The change of battery self chemical composition, all likely causes battery modules overheatedly on firely even to burst, explodes, and the safety of critical peripheral equipment, facility and personnel, produces this raw harm.
The patent of invention of China Patent No. 201320763561.8, applying date 2013-11-26 discloses a kind of batteries of electric automobile insulating box automatic fire extinguisher.It includes the transducer be installed on on-vehicle battery, for detecting the pressure signal in the fire signal of on-vehicle battery and insulating box, also comprise the extinguishing device of fire alarm installation, electric vacuum pump and normally closed intake valve, thus can be real-time battery temperature and smokescope are monitored, the function of intelligent fire fighting can be realized when there being battery fire hazard, effectively reduce the harm of automobile fire, improve vehicle safety.But this extinguishing device is only just suitable for when battery does not produce larger blast, and when battery explosion causes Battery case to break, vacuum pump cannot play fire extinguishing function well.
Chinese invention patent application numbers 201010505612.8; the application for a patent for invention of applying date 2010-10-13 discloses a kind of high-tension high-power storage battery module protection system; it comprises battery management control modules, and the temperature control modules, smoke detection control module, upper management system and the some extinguishing devices that are connected with this battery management control modules circuit respectively.Wherein extinguishing device have employed gas fire extinguisher, thus defect is similar to the defect of aforementioned invention.In addition, also have that cost is higher, fire spread time gas bottle explosion cause the possibility of larger harm.
Therefore, there is not the battery modules that effectively can prevent fire spreading or effectively fire extinguishing after battery catches fire or blast cause casing rupture in prior art.
Summary of the invention
The object of the present invention is to provide a kind of battery modules effectively putting out a fire or prevent fire spreading after battery container explosion.
A kind of battery modules, it comprise housing and be arranged in described housing, one to be electrically connected formed battery pack or multiple battery pack by multiple cell.Described housing has relief valve.Described battery modules also comprises Smoke Sensor, dry powder extinguisher and controller.Whether described Smoke Sensor is arranged near described relief valve, have smog to exist for detecting relief valve place.The signal that described controller is used for exporting according to described Smoke Sensor judges that whether described relief valve is because of on fire or blast unlatching, and after judging that relief valve is because of on fire or blast unlatching, dry powder extinguisher fire extinguishing opened by described controller.
Preferably, described dry powder extinguisher is provided with the battery valve for opening and closing dry powder extinguisher valve.
Preferably, described battery modules also comprises a fire extinguisher bracket, and described fire extinguisher bracket is formed with elastic arm, and described dry powder extinguisher is fixed on the end of elastic arm.
Preferably, described fire extinguisher bracket comprise an annular frame and from annular frame extend at least one described in elastic arm, the end of every bar elastic arm fixes a dry powder extinguisher.
Preferably, the end of every bar elastic arm forms a retainer ring, and described retainer ring has elasticity, can tightly bind round on dry powder extinguisher.
Preferably, described annular frame is enclosed within described housing outer circumferential side.
Preferably, described elastic arm is memory metal or linear springs.
As another kind of execution mode, the end of every bar elastic arm forms a fixed cup, and the lower end of described dry powder extinguisher is inserted in described fixed cup.
As another kind of execution mode, described annular frame is formed with slot, described elastic arm is separable is inserted in described slot inside.
Preferably, described battery modules also comprises battery management system, and described controller is independent of described battery management system.
Preferably, described fire extinguisher bracket is also formed with a support arm extended towards relief valve place, described Smoke Sensor is fixed on leg extremities.
Battery modules shell of the present invention is provided with relief valve, when first this relief valve of battery catches fire is opened, and when blasting, be also generally the blast of relief valve place or unlatching, thus the present invention can find that battery modules is on fire or explode fast, and then start dry powder extinguisher fire extinguishing.The use of dry powder extinguisher is not subject to the impact of environment and battery electrolyte, effectively can put out a fire and prevent the condition of a fire from further developing.
Accompanying drawing explanation
Below in conjunction with drawings and the embodiments, the present invention is further detailed explanation:
Fig. 1 is the schematic perspective view of battery modules in one embodiment of the invention.
Embodiment
Embodiment 1
As shown in Figure 1, in the present embodiment, battery modules mainly comprises housing 10, be arranged in housing one to be electrically connected formed battery pack or multiple battery pack (not shown) and extinguishing device 20 by multiple cell.
Wherein, housing 10 is formed with relief valve 12, relief valve 12 is preferentially arranged on case top by marginal position.Relief valve 12 can be annular or a cross indentation, and when cell internal pressure exceedes preset value, break in indentation place, reaches the object of pressure-relief explosion-proof.
Extinguishing device 20 mainly comprises Smoke Sensor 21, dry powder extinguisher 23, controller 25 and fire extinguisher bracket.
Smoke Sensor 21 and controller 25 are electrically connected, and whether it has smog to exist for detecting relief valve 21 place, thus Timeliness coverage battery modules can there is situation that is on fire or implosion, therefore needs to be arranged near relief valve 12.In the present embodiment, Smoke Sensor 21 is fixed on fire extinguisher bracket.
Dry powder extinguisher 23 can be formed through simple refit by existing traditional dry powder extinguisher.Be mainly the battery valve existing traditional dry powder extinguisher is provided with for opening and closing dry powder extinguisher valve, electromagnetically operated valve is controlled by controller 25.Certainly, understandable, dry powder extinguisher 23 also can be the special fire extinguisher of electromagnetically operated valve or the control of other electronic switches.
For the signal exported according to Smoke Sensor 21, controller 25 judges that whether relief valve 12 is because of on fire or blast unlatching, and after judging that relief valve 12 is because of on fire or blast unlatching, Controlling solenoid valve action, makes dry powder extinguisher 23 put out a fire.In order to ensure extinguishing device 20 not by the impact of battery management system, the controller of battery modules of the present invention, independent of battery management system, is powered separately, directly controls the battery valve on fire extinguisher.
At least one elastic arm 273 that fire extinguisher bracket mainly comprises an annular frame 271, extend from annular frame 271 and the support arm 277 for fixing Smoke Sensor 21 extended from annular frame 271.
In the present embodiment, annular frame 271 is identical with battery container 10 peripheral shape square, is enclosed within housing 20 outer circumferential side, is preferably metal material and makes.
Elastic arm 273 is provided with four, and extend upward from four limits of framework 271 respectively, end is formed with retainer ring 275.Dry powder extinguisher 23 is separable to be fixed in retainer ring 275.In the present embodiment, elastic arm 271 is also metal material, extends to obliquely upward radially above battery modules on the upside of framework 271.Elastic arm 271 should have some strength and pliability, thus after dry powder extinguisher 23 loads retainer ring 275, change of shape is little, can guarantee the nozzle alignment battery modules of dry powder extinguisher 23.In addition, the existence of elastic arm 273 makes fire extinguisher 23 operationally can rock up and down, and increase fire extinguishing scope, good extinguishing effect, effectively can control fire spreading.In the present embodiment, elastic arm 273 is sheet metal, and be preferably memory metal, lower end is welded on framework 271.Retainer ring 275 is that material identical with elastic arm 273 is formed.
The material of support arm 277 is identical with elastic arm 273, and lower end is welded on framework 271, and profile design makes it may extend near relief valve 12.Smoke Sensor 21 is fixed on support arm 277 top.
In work, when battery modules is inner on fire or blast, relief valve 12 breaks, and smog is emerged from relief valve 12, and after Smoke Sensor 21 detects smog, controller 25 controls dry powder extinguisher 23 and sprays dry-chemical fire extinguishing.Fire extinguisher 23 is in the process of spray powder, and the elastic arm 273 that recoil is rocks, and expands fire extinguishing scope, effectively prevents the condition of a fire from spreading.
Understandable, can not arrange fire extinguisher bracket, fire extinguisher can directly be fixed on the sidewall of the miscellaneous part of battery pack periphery.Smoke Sensor is also fixed on by simple stator or pipe on the sidewall of miscellaneous part of battery pack periphery.
Embodiment 2
The structure of battery modules is similar to embodiment 1, is linear springs unlike elastic arm 273.
Embodiment 3
The structure of battery modules is similar to embodiment 1, replaces retainer ring 275 unlike by a water-cup-shaped fixed cup, and the lower end insertion fixed cup of dry powder extinguisher is interior and fixing.
Embodiment 4
The structure of battery modules is similar to embodiment 1, is formed with slot unlike on annular frame 271, and elastic arm is separable to be inserted in slot inside and to fix.
Embodiment 5
The structure of battery modules is similar to embodiment 1, making, can tightly bind round on dry powder extinguisher unlike retainer ring 275 for having certain flexible plastic material.
Claims (10)
1. a battery modules, comprising:
Housing; And
Be arranged in described housing, one to be electrically connected formed battery pack or multiple battery pack by multiple cell;
It is characterized in that, described housing has relief valve, and described battery modules also comprises:
Smoke Sensor, whether it is arranged near described relief valve, have smog to exist for detecting relief valve place;
Dry powder extinguisher;
Controller, for the signal exported according to described Smoke Sensor, it judges that whether described relief valve is because of on fire or blast unlatching, after judging that relief valve is because of on fire or blast unlatching, dry powder extinguisher fire extinguishing opened by described controller.
2. according to battery modules according to claim 1, it is characterized in that: described dry powder extinguisher is provided with the battery valve for opening and closing dry powder extinguisher valve.
3. according to battery modules according to claim 1, it is characterized in that: also comprise a fire extinguisher bracket, described fire extinguisher bracket is formed with elastic arm, and described dry powder extinguisher is fixed on the end of elastic arm.
4., according to battery modules according to claim 2, it is characterized in that: described fire extinguisher bracket comprise an annular frame and from annular frame extend at least one described in elastic arm, the end of every bar elastic arm fixes a dry powder extinguisher.
5. according to the battery modules described in claim 3 or 4, it is characterized in that: the end of every bar elastic arm forms a retainer ring or fixed cup, and when elastic arm end is retainer ring, described retainer ring has elasticity, can tightly bind round on dry powder extinguisher; When elastic arm end is fixed cup, the lower end of described dry powder extinguisher is inserted in described fixed cup.
6. according to the battery modules described in claim 3 or 4, it is characterized in that: described annular frame is enclosed within described housing outer circumferential side.
7. according to battery modules according to claim 3, it is characterized in that: described elastic arm is memory metal or linear springs.
8. according to battery modules according to claim 4, it is characterized in that: described annular frame is formed with slot, described elastic arm is separable is inserted in described slot inside.
9. according to battery modules according to claim 1, it is characterized in that: also comprise battery management system, described controller is independent of described battery management system.
10. according to battery modules according to claim 3, it is characterized in that: described fire extinguisher bracket is also formed with a support arm extended towards relief valve place, described Smoke Sensor is fixed on leg extremities.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510533105.8A CN105140437A (en) | 2015-08-27 | 2015-08-27 | Battery module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510533105.8A CN105140437A (en) | 2015-08-27 | 2015-08-27 | Battery module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105140437A true CN105140437A (en) | 2015-12-09 |
Family
ID=54725713
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510533105.8A Withdrawn CN105140437A (en) | 2015-08-27 | 2015-08-27 | Battery module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105140437A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107978821A (en) * | 2017-11-26 | 2018-05-01 | 合肥国盛电池科技有限公司 | A kind of explosion-protection equipment of lithium battery |
| CN112496476A (en) * | 2020-12-21 | 2021-03-16 | 陈登全 | Electric spark machine tool with self-extinguishing function |
| CN113328150A (en) * | 2021-04-26 | 2021-08-31 | 南通路远科技信息有限公司 | Battery pack with protective device |
| CN113948807A (en) * | 2020-07-16 | 2022-01-18 | 哲弗智能系统（上海）有限公司 | Battery pack with intelligent fixed-point fire extinguishing function |
| CN115663313A (en) * | 2022-09-09 | 2023-01-31 | 江苏正力新能电池技术有限公司 | Integrated power distribution system and battery pack |
-
2015
- 2015-08-27 CN CN201510533105.8A patent/CN105140437A/en not_active Withdrawn
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107978821A (en) * | 2017-11-26 | 2018-05-01 | 合肥国盛电池科技有限公司 | A kind of explosion-protection equipment of lithium battery |
| CN113948807A (en) * | 2020-07-16 | 2022-01-18 | 哲弗智能系统（上海）有限公司 | Battery pack with intelligent fixed-point fire extinguishing function |
| CN112496476A (en) * | 2020-12-21 | 2021-03-16 | 陈登全 | Electric spark machine tool with self-extinguishing function |
| CN112496476B (en) * | 2020-12-21 | 2022-02-11 | 深圳市京鼎工业技术股份有限公司 | Electric spark machine tool with self-extinguishing function |
| CN113328150A (en) * | 2021-04-26 | 2021-08-31 | 南通路远科技信息有限公司 | Battery pack with protective device |
| CN115663313A (en) * | 2022-09-09 | 2023-01-31 | 江苏正力新能电池技术有限公司 | Integrated power distribution system and battery pack |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20151209 |