CN202997005U - Battery safety protection device - Google Patents
Battery safety protection device Download PDFInfo
- Publication number
- CN202997005U CN202997005U CN2012206771894U CN201220677189U CN202997005U CN 202997005 U CN202997005 U CN 202997005U CN 2012206771894 U CN2012206771894 U CN 2012206771894U CN 201220677189 U CN201220677189 U CN 201220677189U CN 202997005 U CN202997005 U CN 202997005U
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- CN
- China
- Prior art keywords
- battery
- hot melt
- battery case
- protective device
- safety protective
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- 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- Withdrawn - After Issue
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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
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- Battery Mounting, Suspending (AREA)
Abstract
The utility model relates to the technical field of battery protection, and particularly relates to a battery safety protection device used for avoiding combustion of a battery caused by overheating and control losing. The battery safety protection device comprises a battery box and a storage capsule for storing a cooling agent, wherein the battery box is used for placing more than one battery and is connected to the storage capsule through a connecting pipeline, the part of the connecting pipeline, which is arranged in the battery box, is provided with more than one starting device. According to the battery safety protection device provided by the utility model, the battery or a battery pack is arranged in the battery box, and the battery box is connected to the storage capsule for containing the cooling agent through the connecting pipeline, and the connecting pipeline is provided with the starting devices, and when a certain battery is in short circuit, heat is released, so that a temperature in the battery box is increased, and further the starting devices is turned on, the cooling agent in the storage capsule enters the battery box so as to reduce the temperature in the battery box, so that thermal runaway is prevented effectively and battery combustion is avoided.
Description
Technical field
The utility model relates to the battery protection technical field, and 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, and the advantage such as to have operating voltage high due to it, and specific energy is large, has extended cycle life, and self-discharge rate is low, and is pollution-free is widely used, and is also the first-selected battery that coordinates the new forms of energy development of countries nowadays.
Traditional lithium battery mainly coordinates the electronic products such as IT and communication to use, and capacity is less, and technology is quite ripe; Coordinate 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 thing followed afterwards, as, the 4.2V lithium battery that capacity is 100Ah, after internal short-circuit, energy can discharge about 5 seconds fully, 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 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, some research even has 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, as lithium titanate etc., although also can play in some effects, battery is eternal theme toward the high-energy development, is also the direction of effort from now on.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.
The utility model content
The utility model 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, the technical scheme that the utility model provides 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 coordinates with described connecting tube by screw thread, is provided with sealing ring and heat shield between described hot melt chock plug and 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
the beneficial effects of the utility model are: a kind of cell safety protective device, by battery or battery pack are arranged in a 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 described battery case to raise, thereby described starting drive can be opened, cooling agent in described storage container can spray the temperature that makes in described battery case and descend, thereby effectively prevented thermal runaway, avoid 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 coordinates with connecting tube.
Embodiment
Be further elaborated below in conjunction with accompanying drawing 1 to 3 pairs of the utility model of accompanying drawing:
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 utility model 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, 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 storage container 2 is entered in 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, 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 the material of 300 ℃ 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 connecting tube 4, hot melt chock plug 5 is tightened on connecting tube 4 by threaded engagement, for the cooling agent in connecting tube 4 can not leaked, also be provided with sealing ring 7 between hot melt chock plug 5 and connecting tube 4; Because the existence that cooling agent is arranged in connecting tube 4 can cause hot melt chock plug 5 lower with the temperature of cooling agent contact position, so even the temperature in 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 connecting tube 4 for preventing this from occurring.
Due to liquid CO
2Need to absorb a large amount of heats in being converted into the vaporescence of gaseous state environment temperature is reduced rapidly, and CO
2Itself has fire-retardant effect, simultaneously liquid CO
2Price is also cheap, so the present embodiment preferentially adopts liquid CO
2As cooling agent.
Liquid CO in storage container 2
2Enter battery case 1 interior after, can cause the pressure in 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 on battery case 1, in the present embodiment, adopt unidirectional valve as pressure relief device 11.
For convenience of user or maintenance personal can be at a glance know and pressure condition in 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 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 utility model 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 battery case 1 to raise, when temperature during higher than the fusion temperature of hot melt chock plug 5,5 fusings of hot melt chock plug, the liquid CO in storage container 2
2Can enter rapidly in battery case 1 liquid CO
2Thereby absorb a large amount of heats in the process of vaporization, the temperature in battery case 1 is descended, thereby effectively prevented thermal runaway, avoid battery 3 catching fires.
The above embodiment, it is preferred embodiments of the present utility model, be not to limit practical range of the present utility model, therefore all equivalences of doing according to the described structure of the utility model claim, feature and principle change or modify, all should be included in the utility model patent claim.
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 3; it is characterized in that: described hot melt switch is hot melt chock plug (5); described hot melt chock plug (5) coordinates 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 described connecting tube (4).
5. arbitrary cell safety protective device as described in 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 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 |
|---|---|---|---|
| CN2012206771894U CN202997005U (en) | 2012-12-10 | 2012-12-10 | Battery safety protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012206771894U CN202997005U (en) | 2012-12-10 | 2012-12-10 | Battery safety protection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202997005U true CN202997005U (en) | 2013-06-12 |
Family
ID=48568137
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012206771894U Withdrawn - After Issue CN202997005U (en) | 2012-12-10 | 2012-12-10 | Battery safety protection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202997005U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103000967A (en) * | 2012-12-10 | 2013-03-27 | 东莞市伊动新能源科技有限公司 | Battery safety protection device |
| CN104353645A (en) * | 2014-11-24 | 2015-02-18 | 成都双奥阳科技有限公司 | Multifunctional computer cleaner |
| CN104438236A (en) * | 2014-11-24 | 2015-03-25 | 成都双奥阳科技有限公司 | Computer cleaning device |
-
2012
- 2012-12-10 CN CN2012206771894U patent/CN202997005U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103000967A (en) * | 2012-12-10 | 2013-03-27 | 东莞市伊动新能源科技有限公司 | Battery safety protection device |
| CN104353645A (en) * | 2014-11-24 | 2015-02-18 | 成都双奥阳科技有限公司 | Multifunctional computer cleaner |
| CN104438236A (en) * | 2014-11-24 | 2015-03-25 | 成都双奥阳科技有限公司 | Computer cleaning device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130612 Effective date of abandoning: 20150708 |
|
| RGAV | Abandon patent right to avoid regrant |