CN214713903U - Fire extinguishing plate applied to battery pack and battery pack - Google Patents
Fire extinguishing plate applied to battery pack and battery pack Download PDFInfo
- Publication number
- CN214713903U CN214713903U CN202120312194.4U CN202120312194U CN214713903U CN 214713903 U CN214713903 U CN 214713903U CN 202120312194 U CN202120312194 U CN 202120312194U CN 214713903 U CN214713903 U CN 214713903U
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- China
- Prior art keywords
- fire extinguishing
- battery
- fire
- layer
- battery pack
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- 238000009413 insulation Methods 0.000 claims abstract description 19
- 239000000463 material Substances 0.000 claims abstract description 17
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 10
- 239000002985 plastic film Substances 0.000 claims abstract description 9
- 229920006255 plastic film Polymers 0.000 claims abstract description 9
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 8
- 230000001629 suppression Effects 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 4
- 230000002265 prevention Effects 0.000 abstract description 3
- 239000012528 membrane Substances 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 9
- 239000003507 refrigerant Substances 0.000 description 6
- 238000004880 explosion Methods 0.000 description 4
- WVSNNWIIMPNRDB-UHFFFAOYSA-N 1,1,1,3,3,4,4,5,5,6,6,6-dodecafluorohexan-2-one Chemical compound FC(F)(F)C(=O)C(F)(F)C(F)(F)C(F)(F)C(F)(F)F WVSNNWIIMPNRDB-UHFFFAOYSA-N 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 3
- PXBRQCKWGAHEHS-UHFFFAOYSA-N dichlorodifluoromethane Chemical compound FC(F)(Cl)Cl PXBRQCKWGAHEHS-UHFFFAOYSA-N 0.000 description 3
- 239000010702 perfluoropolyether Substances 0.000 description 3
- 229920004449 Halon® Polymers 0.000 description 2
- 239000000443 aerosol Substances 0.000 description 2
- 150000001350 alkyl halides Chemical class 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- UKACHOXRXFQJFN-UHFFFAOYSA-N heptafluoropropane Chemical compound FC(F)C(F)(F)C(F)(F)F UKACHOXRXFQJFN-UHFFFAOYSA-N 0.000 description 2
- 238000004806 packaging method and process Methods 0.000 description 2
- -1 perfluoro Chemical group 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- 239000004964 aerogel Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 239000011203 carbon fibre reinforced carbon Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000007789 sealing 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
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- Battery Mounting, Suspending (AREA)
Abstract
The utility model discloses an use board and battery package of putting out a fire in battery package. Wherein, the board of putting out a fire includes plastic-aluminum membrane, insulating layer and the layer of putting out a fire, is provided with fire extinguishing materials in the layer of putting out a fire. The heat insulation layer and the fire extinguishing layer are arranged up and down and are packaged through two sides of the aluminum plastic film. The battery package is including setting up a plurality of battery module in the box and setting up the board of putting out a fire in battery module top. Each fire extinguishing plate covers one or a plurality of battery modules. The fire extinguishing layer of the fire extinguishing plate faces the battery module. The utility model discloses a place the board of putting out a fire that has thermal-insulated effect of putting out a fire in the battery package, make the battery package have higher thermal runaway prevention ability, improve power battery system's security performance.
Description
Technical Field
The utility model belongs to the technical field of power battery, a use board and battery package of putting out a fire in the battery package is related to.
Background
When the power battery fails, a large amount of gas can be generated, if the gas cannot be discharged in time, the power battery can explode when accumulating to a certain volume, and even spread to other batteries, so that the power battery is in series runaway and harms. With the development of new energy automobiles, the safety requirement of the new energy automobiles as a power-battery of the new energy automobiles is higher and higher. The conventional module design on the existing market, the upper cover all is the insulation board of plastics material. When the battery core is out of control thermally, flame and gas with the temperature of over 700 ℃ and chemical substances inside the battery core can be sprayed out. Like this, the module upper cover can melt through in the twinkling of an eye, and then the intensity of a fire spreads to other modules on, triggers further thermal runaway.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the problem that will solve: the utility model discloses a place the board of putting out a fire that has thermal-insulated effect of putting out a fire in the battery package, make the battery package have higher thermal runaway prevention ability, improve power battery system's security performance.
In order to solve the above problem, the utility model discloses a scheme as follows:
the fire extinguishing plate applied to the battery pack comprises an aluminum plastic film, a heat insulation layer and a fire extinguishing layer, wherein a fire extinguishing material is arranged in the fire extinguishing layer; the heat insulation layer and the fire extinguishing layer are arranged up and down and are packaged on two sides of the aluminum plastic film.
Further, according to the fire extinguishing plate of the present invention, the fire extinguishing material includes any one or a combination of heptafluoropropane, perfluoropolyether, perfluorohexanone, aerosol, alkyl halide (halon), hydrofluorocarbon, or perfluoro-based compound.
Further, according to the utility model discloses a fire extinguishing plate, the heat insulating layer material is high temperature resistant material.
Furthermore, according to the fire extinguishing plate of the utility model, the thickness of the fire extinguishing layer is 0.1-10 mm; the thickness of the heat insulation layer is 1-10 mm.
The battery pack comprises a box body, a plurality of battery modules accommodated in the box body and the fire extinguishing plate; the fire extinguishing plate is arranged at the top of the battery module and covers the battery module; the fire extinguishing layer on the fire extinguishing plate faces the battery module.
Further, according to the utility model discloses a battery pack, the board of putting out a fire is through bonding or bolt fastening the top of battery module.
Further, according to the utility model discloses a battery package, the board of putting out a fire covers a plurality of battery module.
Further, according to the utility model discloses a battery package, the quantity of fire extinguishing plate with the quantity of battery module corresponds, each the fire extinguishing plate corresponds the setting respectively and is in each the top of battery module.
Further, according to the utility model discloses a battery package, the board of putting out a fire is the strip structure, battery top in the battery module is provided with the battery explosion-proof valve, the board of putting out a fire covers and sets up directly over the battery explosion-proof valve.
Further, according to the utility model discloses a battery pack, be provided with the explosion-proof valve of box on having two bounding walls at least in four bounding walls of box.
The technical effects of the utility model are as follows:
1. the fire extinguishing plate with the heat insulation and fire extinguishing functions is arranged in the battery pack, so that the battery pack has higher thermal runaway prevention capability, and the safety performance of the power battery system is improved;
2. the heat insulation layer can isolate the influence of external high temperature on the fire extinguishing material on one hand, and can isolate the influence of the high temperature on other modules when the current module is out of control due to heat, so that the heat diffusion process is slowed down;
3. the packaging is carried out through the aluminum-plastic film, so that the damage to the internal heat insulation and fire extinguishing materials caused by external force is avoided, meanwhile, the influence of oxygen, moisture and the like on the internal materials can be isolated after the packaging, and the service life is further prolonged;
4. the box body explosion-proof valves are arranged on at least two side walls of the four side walls of the box body, a large amount of gas is generated when the battery is out of control due to heat, only one box body explosion-proof valve can lead to gas not to be discharged in time, the pressure in the battery pack is increased, the explosion risk is easy to occur, the number of the box body explosion-proof valves is increased to be more than or equal to 2, and the explosion risk of the battery pack can be reduced.
Drawings
Fig. 1 is an exploded view of the battery module and the fire extinguishing plate in the middle box of the present invention.
Fig. 2 is a schematic cross-sectional view of the fire extinguishing plate of the present invention.
Wherein the content of the first and second substances,
1 is a box body, 11 is a coaming, 12 is a flange surface, 2 is a battery module, 3 is a fire extinguishing plate, 31 is an aluminum plastic film, 32 is a fire extinguishing layer, 33 is a heat insulation layer, and 4 is a box body explosion-proof valve.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 1 and 2, a battery pack includes a case body 1, a case cover and a plurality of battery modules 2 accommodated in the case body 1, in this embodiment, the case body 1 includes enclosing plates 11 and a bottom plate, the four enclosing plates 11 are connected end to form an enclosing frame in a shape of a square, and the bottom plate is fixedly connected to the bottom of the enclosing frame in the shape of a square to bottom an opening at the bottom of the enclosing frame to form the case body 1. The top opening of frame is enclosed to mouth style of calligraphy still is equipped with flange face 12 all around, is provided with a plurality of mounting holes on the flange face 12, is provided with sealed face on the case lid, is provided with a plurality of via holes on the sealed face, uses the bolt to pass through via hole and mounting hole threaded connection for the case lid is fixed on box 1, and is sealed through the sealing member between case lid and the box 1. The lid, seal, vias and mounting holes are not shown, but are familiar to those skilled in the art and do not impede understanding by those skilled in the art. The battery module 2 is formed by a plurality of batteries arranged in a straight line and fixed by a module frame, the batteries in the embodiment are square batteries, a battery explosion-proof valve is arranged on the top surface, and an upper cover 21 is arranged on the top of the battery module 2.
The battery pack also comprises a fire extinguishing plate 3; a plurality of fire extinguishing plates 3 are arranged on the top of the battery module 2. The fire extinguishing plate 3 is the fire extinguishing plate used in the battery pack. The fire extinguishing plate 3 comprises an aluminum plastic film 31, a fire extinguishing layer 32 and a heat insulation layer 33, wherein the heat insulation layer 33 and the fire extinguishing layer 32 are arranged up and down and are packaged on two sides of the aluminum plastic film 31. Fire extinguishing material is disposed within fire extinguishing layer 32. Specifically, the fire extinguishing material includes, but is not limited to, any one or combination of heptafluoropropane, perfluoropolyether, perfluorohexanone, aerosol, alkyl halide (halon), hydrofluorocarbon, or perfluoro-based compound. Hydrofluorocarbons include, but are not limited to, R134A (a replacement refrigerant for R12), R125 refrigerant, R32 refrigerant, R407C refrigerant, R410A (a replacement refrigerant for R22), or R152 refrigerant. Perfluoro-type compounds include, but are not limited to, perfluorohexanone or perfluoropolyether. The heat insulation layer 33 is made of high-temperature resistant materials such as carbon fiber, reinforced carbon-carbon composite materials or pre-oxidized fiber aerogel; the influence of outside high temperature to fire extinguishing material can be completely cut off on the one hand to insulating layer 33, and on the other hand can separate other battery module 2 of high temperature influence when current battery module 2 takes place thermal runaway, slows down the thermal diffusion process.
Further, the thickness of the fire extinguishing layer 32 is 0.1-10 mm; the thickness of the fire extinguishing layer 32 is not too thick, so that the space of the battery pack is affected; the thickness of the heat insulation layer 33 is 1-10 mm. The heat insulation layer 33 is not too thin, so that the heat insulation effect is not influenced; too thick is not suitable for affecting heat dissipation.
Further, the fire extinguishing plate 3 is fixed on the top of the battery module 2 through bonding or bolts; specifically, the fire extinguishing plate 3 may be an upper cover 21 attached to the top of the battery module 2, or may be bolted to the module frame, and the fire extinguishing plate 3 may be directly attached to the top of the battery module 2 without the upper cover 21.
In addition, the number of the fire extinguishing plates 3 is at least one, and the tops of the plurality of battery modules 2 accommodated in the box body 1 are covered by the fire extinguishing plates 3. Specifically speaking, can be provided with a plurality of battery module 2 in the box 1 to battery module 2's top all is provided with upper cover 21, and the board of putting out a fire 3 can be a whole board, covers a plurality of battery module 2's top through this board of putting out a fire 3, and simple to operate is swift once, covers a plurality of battery module 2's top through a board of putting out a fire 3 promptly. Of course, two fire extinguishing plates 3 for two battery modules 2 or one fire extinguishing plate 3 for three battery modules 2 may be used.
Further, the number of the fire extinguishing plates 3 corresponds to the number of the battery modules 2, and the top of each battery module 2 is covered with one fire extinguishing plate 3; in this embodiment, be provided with six battery modules 2 in the box 1 to battery module 2's top all is provided with upper cover 21, and six battery module 2's top all covers has a fire extinguishing plate 3.
Further, board 3 of putting out a fire is the strip structure, and the battery top in the battery module 2 is provided with the battery explosion-proof valve, when board 3 of putting out a fire installs at battery module 2 top, puts out a fire and puts out a fire board 3 and is located battery explosion-proof valve directly over. When the battery takes place thermal runaway, high temperature flame and gas etc. are erupted by the battery explosion-proof valve on the battery simultaneously, and 3 plastic-aluminum membranes 31 of fire extinguishing plate are worn in high temperature flame or gas fusion to make the fire extinguishing layer 32 release fire extinguishing materials of encapsulation in fire extinguishing plate 3, realize putting out a fire thermal-insulated cooling to thermal runaway's battery module 2.
In addition, at least two enclosing plates 11 of the four enclosing plates 11 of the box body 1 are provided with box body explosion-proof valves 4. Referring to fig. 2, in the present embodiment, a tank explosion-proof valve 4 is provided on each of two adjacent enclosures 11 of the tank 1. Of course, one tank explosion-proof valve 4 may be provided on each of two opposite enclosing plates 11 of the tank 1, or one tank explosion-proof valve 4 may be provided on each of three enclosing plates 11 or four enclosing plates 11 of the tank 1. When the battery is out of control due to heat, a large amount of gas is generated, if only one box body explosion-proof valve 4 is used, the gas cannot be discharged in time, the pressure in the battery pack is increased, and the explosion risk is easy to occur; the number of the explosion-proof valves 4 of the box body is increased to be more than or equal to 2, so that the explosion risk of the battery pack can be reduced.
Claims (9)
1. The fire extinguishing plate applied to the battery pack is characterized by comprising an aluminum plastic film, a heat insulation layer and a fire extinguishing layer, wherein a fire extinguishing material is arranged in the fire extinguishing layer; the heat insulation layer and the fire extinguishing layer are arranged up and down and are packaged on two sides of the aluminum plastic film.
2. The fire suppression panel of claim 1, wherein the thermal insulation layer material is a high temperature resistant material.
3. The fire extinguishing plate according to claim 1, wherein the thickness of the fire extinguishing layer is 0.1 to 10 mm; the thickness of the heat insulation layer is 1-10 mm.
4. A battery pack, comprising a case body and a plurality of battery modules accommodated in the case body, characterized by further comprising a fire extinguishing plate according to any one of claims 1 to 3; the fire extinguishing plate is arranged at the top of the battery module and covers the battery module; the fire extinguishing layer on the fire extinguishing plate faces the battery module.
5. The battery pack according to claim 4, wherein the fire extinguishing plate is fixed to the top of the battery module by bonding or bolts.
6. The battery pack according to claim 4, wherein the fire extinguishing plate covers a plurality of battery modules.
7. The battery pack according to claim 4, wherein the number of the fire extinguishing plates corresponds to the number of the battery modules, and each of the fire extinguishing plates is correspondingly disposed at the top of each of the battery modules.
8. The battery pack according to claim 4, wherein the fire extinguishing plate is in a strip structure, a battery explosion-proof valve is arranged at the top of the battery in the battery module, and the fire extinguishing plate is covered and arranged right above the battery explosion-proof valve.
9. The battery pack according to claim 4, wherein at least two of the four enclosure walls of the case are provided with case explosion-proof valves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120312194.4U CN214713903U (en) | 2021-02-04 | 2021-02-04 | Fire extinguishing plate applied to battery pack and battery pack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120312194.4U CN214713903U (en) | 2021-02-04 | 2021-02-04 | Fire extinguishing plate applied to battery pack and battery pack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214713903U true CN214713903U (en) | 2021-11-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120312194.4U Active CN214713903U (en) | 2021-02-04 | 2021-02-04 | Fire extinguishing plate applied to battery pack and battery pack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214713903U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115645787A (en) * | 2022-11-01 | 2023-01-31 | 飞荣达科技(江苏)有限公司 | Power battery fire extinguishing plate and processing method thereof |
-
2021
- 2021-02-04 CN CN202120312194.4U patent/CN214713903U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115645787A (en) * | 2022-11-01 | 2023-01-31 | 飞荣达科技(江苏)有限公司 | Power battery fire extinguishing plate and processing method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220223 Address after: 215500 No. 68, Xin'anjiang Road, Southeast street, Changshu, Suzhou, Jiangsu Patentee after: Jiangsu Zenergy Battery Technologies Co.,ltd Address before: No.15, Huashang Road, Airport Economic Development Zone, Jiangning District, Nanjing City, Jiangsu Province Patentee before: Jiangsu Tafel Power System Co.,Ltd. Patentee before: JIANGSU TAFEL NEW ENERGY TECHNOLOGY Co.,Ltd. Patentee before: DONGGUAN TAFEL NEW ENERGY TECHNOLOGY Co.,Ltd. |