CN103000967A - Battery safety protection device - Google Patents
Battery safety protection device Download PDFInfo
- Publication number
- CN103000967A CN103000967A CN2012105283703A CN201210528370A CN103000967A CN 103000967 A CN103000967 A CN 103000967A CN 2012105283703 A CN2012105283703 A CN 2012105283703A CN 201210528370 A CN201210528370 A CN 201210528370A CN 103000967 A CN103000967 A CN 103000967A
- Authority
- CN
- China
- Prior art keywords
- battery
- battery case
- storage container
- hot melt
- protective device
- 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.)
- Granted
Links
- 239000002826 coolant Substances 0.000 claims abstract description 18
- 239000012943 hotmelt Substances 0.000 claims description 26
- 230000001681 protective effect Effects 0.000 claims description 14
- 239000007788 liquid Substances 0.000 claims description 8
- 238000007789 sealing Methods 0.000 claims description 3
- 230000036413 temperature sense Effects 0.000 claims description 3
- 238000002485 combustion reaction Methods 0.000 abstract 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 12
- 229910052744 lithium Inorganic materials 0.000 description 12
- 238000011161 development Methods 0.000 description 5
- 230000008859 change Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000011160 research Methods 0.000 description 3
- 230000004888 barrier function Effects 0.000 description 2
- 239000003063 flame retardant Substances 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 1
- 206010020852 Hypertonia Diseases 0.000 description 1
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000011149 active material Substances 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 229910001416 lithium ion Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000001172 regenerating effect Effects 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
Images
Classifications
-
- 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
Landscapes
- Secondary Cells (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
The invention relates to the technical field of battery protection, and especially relates to a battery safety protection device used for preventing combustion due to battery ouverheating and out of control; the device comprises a battery case, and a storage container storing a cooling agent; the battery case is used for accommodating more than one battery; the battery case is connected with the storage container through a connecting pipeline; more than one starting device is disposed on a part of the connecting pipeline in the battery case; A battery or a battery pack is disposed in the battery case; the battery case is communicated with the storage container filled with the cooling agent through the connecting pipeline; the starting device is disposed on the connecting pipeline; when a certain battery is short-out, the released heat can increase the temperature in the battery case, and thus the starting device is turned on; the cooling agent in the storage container enters into the battery case to decrease the temperature in the battery case; therefore thermal out of control can be prevented effectively, and fire breaking out and combustion of the battery are prevented.
Description
Technical field
The present invention relates to the battery protection technical field, cell safety protective device particularly is used for preventing that battery from crossing thermal runaway and causing burning.
Background technology
Battery will be brought into play vital role as the important component part of regenerative resource and new forms of energy.Lithium battery is since succeeding in developing, because it has the operating voltage height, the advantage such as specific energy is large, has extended cycle life, and self-discharge rate is low, and is pollution-free is widely used, and also is the first-selected battery that cooperates the new forms of energy development of countries nowadays.
Traditional lithium battery mainly cooperates the electronic products such as IT and communication to use, and capacity is less, and technology is quite ripe; Cooperate new forms of energy and stored energy application, need lithium battery capacity is done greatly, it is the safety issue of product that battery capacity is done the large afterwards thing followed, as, the 4.2V lithium battery that capacity is 100Ah, energy can discharge about 5 seconds fully behind the internal short-circuit, its internal short-circuit battery will reach 72000 peaces, so high electric current must make internal temperature of battery moment rising, causes " thermal runaway ", and thermal runaway is the main cause that causes the battery catching fire.At present people's research of improving lithium battery safety all concentrates in the improvement of the mechanism of inside battery and material mostly, as add flame-retardant additive, the development of new barrier film, change both positive and negative polarity active material etc., because these improvement measures relate to technical barrier too many in the basic research, perhaps will change the present lithium battery resources of production and technical resource, thereby the fail safe of lithium battery improves that progress is very slow always, produce little effect.
Now, no matter domestic and international, use high-capacity lithium battery that the accident of catching fire is all arranged in the new forms of energy pure electric vehicle of pilot operation, make the development of industry cover with shade, the research that has even have to reduce the specific energy of battery system for the safety that solves lithium battery also proposes to adopt the low-down material of some specific energies, such as lithium titanate etc., although also can play in some effects, battery is eternal theme toward the high-energy development, also is the direction of from now on effort.Thereby the fail safe yet of high-capacity lithium-ion electricity is not singly restricting the development of lithium battery technology, is seriously restricting the utilization of lithium battery on pure electric vehicle yet.
Summary of the invention
The present invention is in order to solve current battery because internal short-circuit makes the instantaneous rising of internal temperature of battery, causes the problem of battery catching fire and the cell safety protective device that provides.
For reaching above-mentioned functions, technical scheme provided by the invention is:
A kind of cell safety protective device; comprise battery case, store the storage container of cooling agent; described battery case is used for placing more than one battery; described battery case communicates with described storage container by connecting tube, and the part that described connecting tube is positioned at battery case is provided with the starting drive of the cooling agent ejection that makes described storage container more than.
Preferably, described starting drive is temperature sense switch.
Preferably, described starting drive is the hot melt switch.
Preferably, described hot melt switch is the hot melt chock plug, and described hot melt chock plug cooperates with described connecting tube by screw thread, is provided with sealing ring and heat shield between described hot melt chock plug and the described connecting tube.
Preferably, described battery case is provided with pressure relief device.
Preferably, described pressure relief device is unidirectional valve.
Preferably, described storage container top is provided with Pressure gauge and valve.
Preferably, described cooling agent is liquid CO
2
Beneficial effect of the present invention is: a kind of cell safety protective device; by battery or battery pack are arranged in the battery case; the storage container that more described battery case and is equipped with cooling agent is connected by connecting tube; described connecting tube is provided with starting drive; the heat that discharges when some battery short circuits can cause the temperature in the described battery case to raise; thereby described starting drive can be opened; cooling agent in the described storage container can spray the drop in temperature that makes in the described battery case; thereby effectively prevented thermal runaway, avoided the battery catching fire.
Description of drawings
Fig. 1 is the structural representation of embodiment one;
Fig. 2 is the structural representation of embodiment two;
Fig. 3 is the schematic diagram that the hot melt chock plug cooperates with connecting tube.
Embodiment
The present invention is further elaborated to accompanying drawing 3 below in conjunction with accompanying drawing 1:
Embodiment one:
Cell safety protective device as shown in Figure 1; comprise battery case 1; be arranged at the storage container 2 that battery case 1 external memory contains cooling agent; in the present embodiment; battery case 1 is that the seal case that adopts stainless steel material to make (is clear expression internal structure of the present invention in Fig. 1; the one side of seal case does not represent); more than one battery 3 or battery pack series connection are fixedly installed in the annular seal space of battery case 1; battery case 1 is connected with the storage container 2 that stores cooling agent by metal connecting tube road 4, and the part that connecting tube 4 is positioned at battery case 1 is provided with more than one starting drive 41.
Starting drive 41 is used for opening connecting tube 4, and the cooling agent in the storage container 2 is entered in the battery case 1.In the present embodiment, starting drive 41 adopts the hot melt switch, and after the hot melt switch referred to reach uniform temperature, described hot melt switch just can melt automatically; Certainly starting drive 41 also can adopt miscellaneous equipment as required, such as temperature sense switch etc.
As shown in Figure 3, it is 120 ℃ that in the present embodiment hot melt switch adopts fusing point--the hot melt chock plug 5 that 300 ℃ material is made, hot melt chock plug 5 is provided with external screw thread, be provided with the internal thread that matches with the external screw thread of hot melt chock plug 5 on the connecting tube 4, hot melt chock plug 5 is tightened on the connecting tube 4 by threaded engagement, for the cooling agent in the connecting tube 4 can not leaked, also be provided with sealing ring 7 between hot melt chock plug 5 and the connecting tube 4; Owing to there is the existence of cooling agent can cause hot melt chock plug 5 lower with the temperature of cooling agent contact position in the connecting tube 4, so even the temperature in the battery case 1 has reached the fusing point of hot melt chock plug 5, hot melt chock plug 5 can not melt yet, thereby lost efficacy, also be provided with a heat shield (6) between hot melt chock plug 5 and the connecting tube 4 for preventing this from occurring.
Because liquid CO
2In being converted into the vaporescence of gaseous state, need to absorb a large amount of heats environment temperature is reduced rapidly, and CO
2Itself has fire-retardant effect, simultaneously liquid CO
2Price is also cheap, so present embodiment preferentially adopts liquid CO
2As cooling agent.
Liquid CO in the storage container 2
2Enter battery case 1 interior after, can cause the pressure in the battery case 1 to rise rapidly, for preventing that battery case 1 from being cracked or because there is other potential safety hazard in hypertonia, being provided with pressure relief device 11 at battery case 1, in the present embodiment, adopt unidirectional valve as pressure relief device 11.
For make things convenient for user or maintenance personal can be at a glance know and pressure condition in the storage container 2 determine whether that the top that needs to change storage container 2 is provided with Pressure gauge 21; Simultaneously can close this storage container 2 when changing storage container 2, the top of storage container 2 also is provided with controlled valve 22.
Embodiment two:
As shown in Figure 2, in the present embodiment, storage container 2 is arranged in the battery case 1, so that the maintenance personal carries out integral replacing.Other parts in the present embodiment are identical with embodiment one, no longer describe in detail here.
Operation principle of the present invention is as follows: in use, when a certain battery 3 or battery pack were short-circuited, the heat that discharges can cause the temperature in the battery case 1 to raise, when temperature is higher than the fusion temperature of hot melt chock plug 5,5 fusings of hot melt chock plug, the liquid CO in the storage container 2
2Can enter rapidly in the battery case 1 liquid CO
2Thereby a large amount of heat of absorption makes the drop in temperature in the battery case 1 in the process of vaporization, thereby has effectively prevented thermal runaway, avoids battery 3 catching fires.
The above embodiment, it is preferred embodiments of the present invention, be not to limit practical range of the present invention, so all equivalences of doing according to the described structure of the present patent application claim, feature and principle change or modify, all should be included in the patent claim of the present invention.
Claims (8)
1. cell safety protective device; it is characterized in that: comprise battery case (1), store the storage container (2) of cooling agent; described battery case (1) is used for placing more than one battery (3); described battery case (1) is connected with described storage container (2) by connecting tube (4), and the part that described connecting tube (4) is positioned at battery case (1) is provided with the starting drive (41) of the cooling agent ejection that makes described storage container (2) more than.
2. cell safety protective device as claimed in claim 1, it is characterized in that: described starting drive (41) is temperature sense switch.
3. cell safety protective device as claimed in claim 1, it is characterized in that: described starting drive (41) is the hot melt switch.
4. cell safety protective device as claimed in claim 1; it is characterized in that: described hot melt switch is hot melt chock plug (5); described hot melt chock plug (5) cooperates with described connecting tube (4) by screw thread, is provided with sealing ring (7) and heat shield (6) between described hot melt chock plug (5) and the described connecting tube (4).
5. such as the described arbitrary cell safety protective device of claim 1-4, it is characterized in that: described battery case (1) is provided with pressure relief device (11).
6. cell safety protective device as claimed in claim 5, it is characterized in that: described pressure relief device (11) is unidirectional valve.
7. cell safety protective device as claimed in claim 6, it is characterized in that: described storage container (2) top is provided with Pressure gauge (21) and valve (22).
8. cell safety protective device as claimed in claim 7, it is characterized in that: described cooling agent is liquid CO
2
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210528370.3A CN103000967B (en) | 2012-12-10 | 2012-12-10 | Battery safety protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210528370.3A CN103000967B (en) | 2012-12-10 | 2012-12-10 | Battery safety protection device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103000967A true CN103000967A (en) | 2013-03-27 |
| CN103000967B CN103000967B (en) | 2015-07-08 |
Family
ID=47929270
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210528370.3A Active CN103000967B (en) | 2012-12-10 | 2012-12-10 | Battery safety protection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103000967B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104882639A (en) * | 2015-04-28 | 2015-09-02 | 湖北长海新能源科技有限公司 | Method and device for restraining and preventing thermal runaway of lithium ion battery |
| CN107453001A (en) * | 2017-07-12 | 2017-12-08 | 浙江谷神能源科技股份有限公司 | A kind of lithium battery fire-retarding device |
| WO2017215159A1 (en) * | 2016-06-16 | 2017-12-21 | 广东合一新材料研究院有限公司 | Cooling system of working medium contact type for power battery and working method thereof |
| CN110350139A (en) * | 2019-06-05 | 2019-10-18 | 国网江苏省电力有限公司电力科学研究院 | A kind of extinguishing device of energy-storage battery |
| CN111384341A (en) * | 2019-05-07 | 2020-07-07 | 国网电力科学研究院武汉南瑞有限责任公司 | Lithium battery box with fireproof function and using method thereof |
| CN113384838A (en) * | 2021-07-13 | 2021-09-14 | 长沙紫宸科技开发有限公司 | Energy storage power station continuous cooling oxygen-expelling fireproof device and fireproof method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10233237A (en) * | 1997-02-17 | 1998-09-02 | Nissan Motor Co Ltd | Nonaqueous electrolyte secondary battery |
| CN101761353A (en) * | 2009-12-18 | 2010-06-30 | 大连海事大学 | Air cooling system for mine rescue capsule |
| CN201868523U (en) * | 2010-10-29 | 2011-06-15 | 中航锂电（洛阳）有限公司 | Lithium ion power battery with safety valve |
| CN202434667U (en) * | 2011-10-12 | 2012-09-12 | 浙江南都电源动力股份有限公司 | Cooling and safety protection device for large-sized assembled lithium ion battery |
| CN202997005U (en) * | 2012-12-10 | 2013-06-12 | 东莞市伊动新能源科技有限公司 | Battery safety protection device |
-
2012
- 2012-12-10 CN CN201210528370.3A patent/CN103000967B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10233237A (en) * | 1997-02-17 | 1998-09-02 | Nissan Motor Co Ltd | Nonaqueous electrolyte secondary battery |
| CN101761353A (en) * | 2009-12-18 | 2010-06-30 | 大连海事大学 | Air cooling system for mine rescue capsule |
| CN201868523U (en) * | 2010-10-29 | 2011-06-15 | 中航锂电（洛阳）有限公司 | Lithium ion power battery with safety valve |
| CN202434667U (en) * | 2011-10-12 | 2012-09-12 | 浙江南都电源动力股份有限公司 | Cooling and safety protection device for large-sized assembled lithium ion battery |
| CN202997005U (en) * | 2012-12-10 | 2013-06-12 | 东莞市伊动新能源科技有限公司 | Battery safety protection device |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104882639A (en) * | 2015-04-28 | 2015-09-02 | 湖北长海新能源科技有限公司 | Method and device for restraining and preventing thermal runaway of lithium ion battery |
| WO2017215159A1 (en) * | 2016-06-16 | 2017-12-21 | 广东合一新材料研究院有限公司 | Cooling system of working medium contact type for power battery and working method thereof |
| CN107453001A (en) * | 2017-07-12 | 2017-12-08 | 浙江谷神能源科技股份有限公司 | A kind of lithium battery fire-retarding device |
| CN111384341A (en) * | 2019-05-07 | 2020-07-07 | 国网电力科学研究院武汉南瑞有限责任公司 | Lithium battery box with fireproof function and using method thereof |
| CN110350139A (en) * | 2019-06-05 | 2019-10-18 | 国网江苏省电力有限公司电力科学研究院 | A kind of extinguishing device of energy-storage battery |
| CN113384838A (en) * | 2021-07-13 | 2021-09-14 | 长沙紫宸科技开发有限公司 | Energy storage power station continuous cooling oxygen-expelling fireproof device and fireproof method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103000967B (en) | 2015-07-08 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| ASS | Succession or assignment of patent right |
Owner name: DONGGUAN LONGXING AERONAUTICS SCIENCE + TECHNOLOGY Effective date: 20130402 |
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| C10 | Entry into substantive examination | ||
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Effective date of registration: 20130402 Address after: 523808, building 1, building 113, Songshan science and Technology Industrial Park, building 4, Songshan Lake, Guangdong, Dongguan Applicant after: DONGGUAN YIDONG NEW ENERGY TECHNOLOGY Co.,Ltd. Applicant after: DONGGUAN LONGXING AVIATION TECHNOLOGY Co.,Ltd. Address before: 523808, building 1, building 113, Songshan science and Technology Industrial Park, building 4, Songshan Lake, Guangdong, Dongguan Applicant before: DONGGUAN YIDONG NEW ENERGY TECHNOLOGY Co.,Ltd. |
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