CN109876334B - New energy automobile battery package air feeder - Google Patents
New energy automobile battery package air feeder Download PDFInfo
- Publication number
- CN109876334B CN109876334B CN201910291008.0A CN201910291008A CN109876334B CN 109876334 B CN109876334 B CN 109876334B CN 201910291008 A CN201910291008 A CN 201910291008A CN 109876334 B CN109876334 B CN 109876334B
- Authority
- CN
- China
- Prior art keywords
- battery pack
- storage
- storage bin
- gas generating
- film
- 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.)
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- 230000000903 blocking effect Effects 0.000 claims abstract description 9
- 239000000126 substance Substances 0.000 claims description 37
- 239000007788 liquid Substances 0.000 claims description 21
- 239000007779 soft material Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 5
- 238000004891 communication Methods 0.000 abstract description 3
- 238000007789 sealing Methods 0.000 abstract description 3
- 239000007789 gas Substances 0.000 description 61
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical group OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 6
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 4
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 4
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000001569 carbon dioxide Substances 0.000 description 2
- 229910002092 carbon dioxide Inorganic materials 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 229920002635 polyurethane Polymers 0.000 description 2
- 239000004814 polyurethane Substances 0.000 description 2
- 229910000029 sodium carbonate Inorganic materials 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000012780 transparent material Substances 0.000 description 1
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
- Battery Mounting, Suspending (AREA)
Abstract
The invention relates to a new energy automobile battery pack air supply device which comprises a storage, a film, a baffle and a waterproof pad, wherein the film is arranged on the outer side of the storage; the baffle is arranged outside the film; the waterproof pad is arranged outside the memory; the inside of the storage is provided with a first storage bin and a second storage bin, and a pipeline is arranged between the first storage bin and the second storage bin for communication; the side walls of the first storage bin and the second storage bin are provided with holes; a blocking cover is arranged in the hole on the side wall of the second storage bin. The invention can keep the fire extinguishing gas in the battery pack with the device in a high concentration state; the pressure difference between the inside and the outside of the battery pack provided with the battery pack air supply device can be reduced, so that the damage of the pressure difference to the sealing structure of the battery pack is reduced; the battery pack air supply device of the new energy automobile does not need electric device control in the working process and is automatically started in the necessary environment.
Description
Technical Field
The invention belongs to the technical field of new energy automobiles, and particularly relates to a new energy automobile battery pack air supply device.
Background
Compared with the traditional automobile, the new energy automobile has the advantages of no pollution gas discharge during working and urban environment protection besides getting rid of petroleum dependence. The battery pack is a key component of the new energy automobile, and the quality of the battery pack directly influences the service life and safety of the new energy automobile. At present, when a new energy automobile is used, a fire combustion accident occurs, one of reasons for the occurrence of the accident is that the concentration of fire extinguishing gas in a battery pack is not high enough, when the battery pack is in thermal runaway, a chemical reaction in a battery cell breaks a battery cell shell or a protective film, substances in the battery cell overflow, and the substances continuously react with oxygen outside the battery cell at a high temperature, so that the combustion range is enlarged.
The new energy automobile battery package can be full of fire extinguishing gas (such as carbon dioxide, nitrogen or other gas that has the fire extinguishing function to the electric core) in the production process, but the battery package can receive external temperature or the heat influence that produces in the battery package working process in the use, and the battery package is inside to produce pressure differential with the external world, and when the outside pressure of battery package is big than inside pressure, the air can get into the battery package inside slowly through sealed weak position to reduce the inside fire extinguishing gas concentration of battery package, influence fire extinguishing effect.
Disclosure of Invention
The invention aims to provide a new energy automobile battery pack air supply device, which is characterized in that a battery pack air supply device is arranged on a battery pack shell (namely a battery box) of a new energy automobile, when the external air pressure of the battery pack is larger than that of the battery pack, the air supply device can automatically generate fire extinguishing air and fill the inside of the battery pack, so that the internal air pressure and the external air pressure of the battery pack are basically consistent, the concentration of the fire extinguishing air is prevented from being reduced due to the fact that external air enters the inside of the battery pack, and the damage caused by the influence of pressure difference on a sealing strip of the battery pack for a long time is reduced.
In order to achieve the above object, the present invention has the following technical scheme.
The new energy automobile battery pack air supply device comprises a storage, a film, a baffle and a waterproof pad, wherein the film is arranged on the outer side of the storage; the baffle is arranged outside the film; the waterproof pad is arranged outside the memory; the inside of the storage is provided with a first storage bin and a second storage bin, and a pipeline is arranged between the first storage bin and the second storage bin for communication; the side walls of the first storage bin and the second storage bin are provided with holes; a blocking cover is arranged in the hole on the side wall of the second storage bin.
Further, a gas generating substance is placed in the first storage bin; the second storage bin is provided with a liquid gas generating substance.
Further, the liquid gas generating substance stored in the reservoir is a phosphoric acid solution or other liquid, and the other gas generating substance stored in the reservoir is a non-gaseous substance, such as a solid or liquid.
In this device, the membrane is made of a tough and soft material (such as polyurethane) and is easily deformed. The storage has certain strength and is not easy to deform, two storage bins are arranged in the storage bin, each bin is provided with a hole, and gas generating substances can be filled into the storage bin through the holes. When the battery pack air supply device is fixed to the battery pack, the second storage bin hole for storing the liquid gas generating substances is tightly blocked by the blocking cover, the other storage bin hole can enable air to freely enter and exit, when the pressure outside the battery pack is higher than the pressure inside the battery pack, the film can deform towards the inner direction of the battery pack, the liquid gas generating substances (such as phosphoric acid solution) in the storage are extruded, the gas generating substances can flow to the other storage bin of the storage through the pipeline and react with the other gas generating substances (such as sodium carbonate) stored in the storage bin, and the gas is filled into the battery pack through the hole communicated with the storage and the gas in the battery pack, so that the pressure inside the battery pack is gradually increased, the pressure outside the battery pack is basically consistent with the pressure inside the battery pack, and in the process of increasing the pressure inside the battery pack, the gas inside the battery pack can flow into the bin of the storage for storing the liquid gas generating substances through the storage through the pipeline of the storage, so that the deformation amount of the film is reduced, and even the shape before deformation is reached. When the external pressure intensity of the battery pack is smaller than the internal pressure intensity, the film deforms to the outside of the battery pack and is blocked by the blocking piece, and preferentially, the battery box is provided with the gas check valve for cooperation, and the gas in the battery pack is exhausted through the gas check valve, so that the internal pressure intensity and the external pressure intensity of the battery pack are kept consistent, and the gas check valve only can enable the gas in the battery pack to be exhausted outwards and cannot enable the gas to be sucked inwards from outside to inside the battery pack.
In the device, a battery pack gas supply device is provided with a film, a storage and a gas generating body, when the external pressure of the battery pack is higher than that of the inside, the external pressure can deform the tough and soft film, after the liquid gas generating material in one storage area of the storage is extruded, the liquid gas generating material flows to the other storage area through a pipeline and reacts with the gas generating material stored in the other storage area to produce fire extinguishing gas (the fire extinguishing gas refers to gas with fire extinguishing function on an electric core and comprises but is not limited to carbon dioxide and nitrogen), the fire extinguishing gas flows into the battery pack and increases the internal pressure, so that the external pressure and the internal pressure of the battery pack are basically consistent, and the concentration of the fire extinguishing gas in the battery pack cannot be reduced because the filled gas is the fire extinguishing gas
The beneficial effects of the invention are as follows: the invention can keep the fire extinguishing gas in the battery pack with the device in a high concentration state; the pressure difference between the inside and the outside of a battery pack provided with the battery pack air supply device can be reduced, so that the damage of the pressure difference to the sealing structure of the battery pack is reduced; in the device, the structure is provided with holes, even if transparent materials are not adopted, the use condition of the liquid gas generating substances can be seen, if the device is installed on a battery pack, the use condition of the liquid gas generating substances of the device can be observed outside the battery pack, and if the device is used, the device can be replaced in time; the battery pack air supply device of the new energy automobile does not need electric device control in the working process and is automatically started in the necessary environment. The new energy automobile battery pack air supply device has relatively independent structure, can judge whether the gas generating substances of the new energy automobile battery pack air supply device are used up from the outside of the battery pack if the new energy automobile battery pack air supply device is damaged or the gas generating substances are used up and are required to be replaced independently if the new energy automobile battery pack air supply device is used up, and is convenient and quick.
Drawings
Fig. 1 is an exploded view of an apparatus used in an embodiment of the present invention.
Fig. 2 is a top view of an apparatus used in an embodiment of the invention.
Fig. 3 is a front view of an apparatus used in an embodiment of the present invention.
Fig. 4 is a sectional view of section A-A in fig. 3.
The figure indicates: 1. a memory; 2. a film; 3. a baffle; 4. a blanking cover; 5. a waterproof pad; 6. a hole; 7. a pipe; 8. a first storage bin; 9. a second storage bin; 10. a gas generating substance; 11. a liquid gas generating substance.
Detailed Description
The following description of specific embodiments of the invention is provided in connection with the accompanying drawings to provide a better understanding of the invention.
The new energy automobile battery pack air supply device as shown in fig. 1-4 comprises a memory 1, a film 2, a baffle 3 and a waterproof pad 5, wherein the film 2 is arranged outside the memory 1; the baffle 3 is arranged outside the film 2; the waterproof pad 5 is arranged outside the memory 1; a first storage bin 8 and a second storage bin 9 are arranged in the storage 1, and a pipeline 7 is arranged between the first storage bin 8 and the second storage bin 9 for communication; the side walls of the first storage bin 8 and the second storage bin 9 are provided with holes 6; a blocking cover 4 is arranged in a hole on the side wall of the second storage bin 9. A gas generating substance 10 is placed in the first storage bin 8; the second storage compartment 9 houses a liquid gas generating substance 11.
In this device, the film 2 is made of a tough and soft material (such as polyurethane) and is easily deformed. The storage 1 has certain strength, is not easy to deform, is internally provided with two storage bins, each bin is provided with a hole, and gas generating substances can be filled into the storage bins through the holes. When the battery pack gas supply device is fixed to the battery pack, the hole of the second storage bin 9 for storing the liquid gas generating substance 11 is tightly blocked by the blocking cover 4, the other storage bin hole 6 can enable gas to freely enter and exit, when the pressure outside the battery pack is higher than the pressure inside the battery pack, the film 2 deforms towards the inside of the battery pack, the liquid gas generating substance (such as phosphoric acid solution) in the storage is extruded, the gas generating substance flows to the other storage bin of the storage through a pipeline and chemically reacts with the other gas generating substance (such as sodium carbonate) stored in the storage bin, and gas is filled into the battery pack through the hole communicated with the battery pack by the storage, so that the pressure inside the battery pack is gradually increased, the pressure outside the battery pack is basically consistent with the pressure inside the battery pack, and during the process of increasing the pressure inside the battery pack, the gas inside the battery pack can flow into the storage bin for storing the liquid gas generating substance by the pipeline of the storage, so that the deformation amount of the film is reduced, and even reaches the shape before deformation. When the external pressure intensity of the battery pack is smaller than the internal pressure intensity, the film deforms to the outside of the battery pack and is blocked by the blocking piece, and preferentially, the battery box is provided with the gas check valve for cooperation, and the gas in the battery pack is exhausted through the gas check valve, so that the internal pressure intensity and the external pressure intensity of the battery pack are kept consistent, and the gas check valve only can enable the gas in the battery pack to be exhausted outwards and cannot enable the gas to be sucked inwards from outside to inside the battery pack.
While the foregoing is directed to the preferred embodiments of the present invention, it will be appreciated by those skilled in the art that changes and modifications may be made without departing from the principles of the invention, such changes and modifications are also intended to be within the scope of the invention.
Claims (2)
1. The utility model provides a new energy automobile battery package air feeder which characterized in that: the device comprises a memory, a film and a baffle, wherein the film is arranged on the outer side of the memory; the baffle is arranged on the outer side of the film; the inside of the storage is provided with a first storage bin and a second storage bin, and the first storage bin and the second storage bin are communicated through a pipeline; holes are formed in the side walls of the first storage bin and the second storage bin; a blocking cover is arranged in a hole on the side wall of the second storage bin; a gas generating substance is placed in the first storage bin; a liquid gas generating substance is placed in the second storage bin; the liquid gas generating substance stored in the second storage bin of the storage device can react with the gas generating substance placed in the first storage bin to generate fire extinguishing gas, and the other gas generating substance stored in the storage device is a non-gas substance.
2. The new energy automobile battery pack air supply device according to claim 1, wherein: in the device, the film is made of tough and soft materials, is easy to deform, is fixed on the outer side of the storage, and can prevent liquid in the second storage bin from flowing out or exuding; the storage is provided with two storage bins, each bin is provided with a hole, and gas generating substances can be filled into the storage bins through the holes of the storage; when the battery pack air supply device is fixed to the battery pack, the second storage bin hole for storing the liquid gas generating substances is tightly blocked by the blocking cover, the other storage bin hole can enable air to freely enter and exit, when the pressure outside the battery pack is higher than the internal pressure, the film deforms towards the inner direction of the battery pack, the liquid gas generating substances of the storage are extruded, flow to the other storage bin of the storage through the pipeline, chemically react with the other gas generating substances stored in the storage bin, generate gas to extinguish the fire, fill the gas into the battery pack through the hole communicated with the battery pack of the storage, and gradually increase the internal pressure of the battery pack so as to enable the external pressure and the internal pressure of the battery pack to be consistent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910291008.0A CN109876334B (en) | 2019-04-11 | 2019-04-11 | New energy automobile battery package air feeder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910291008.0A CN109876334B (en) | 2019-04-11 | 2019-04-11 | New energy automobile battery package air feeder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109876334A CN109876334A (en) | 2019-06-14 |
| CN109876334B true CN109876334B (en) | 2024-04-05 |
Family
ID=66937004
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910291008.0A Active CN109876334B (en) | 2019-04-11 | 2019-04-11 | New energy automobile battery package air feeder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109876334B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20050042620A (en) * | 2003-11-03 | 2005-05-10 | 주식회사 엘지화학 | Lithium secondary battery having an improved stability |
| JP2015062587A (en) * | 2013-09-25 | 2015-04-09 | エア・ウォーター防災株式会社 | Fire-extinguishing gas generator |
| CN106267635A (en) * | 2016-08-08 | 2017-01-04 | 刘树民 | A kind of aqua type multifunctional flame-proof fire extinguisher |
| CN206595314U (en) * | 2017-02-21 | 2017-10-27 | 广州小鹏汽车科技有限公司 | A kind of batteries of electric automobile bag pressure-relief explosion-proof structure |
| CN108245804A (en) * | 2018-01-16 | 2018-07-06 | 上海应用技术大学 | A kind of in due course extinguishing method of battery pack and fire extinguishing system |
| CN209790667U (en) * | 2019-04-11 | 2019-12-17 | 深圳石头新能源科技有限公司 | New energy automobile battery package air feeder |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102010050742A1 (en) * | 2010-11-08 | 2012-05-10 | Li-Tec Battery Gmbh | Method and device for controlling or avoiding fires in the interior, on the surface or in the surroundings of an electrochemical energy store |
| US9941526B2 (en) * | 2015-08-21 | 2018-04-10 | The Boeing Company | Inert gas generation from fuel cells |
-
2019
- 2019-04-11 CN CN201910291008.0A patent/CN109876334B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20050042620A (en) * | 2003-11-03 | 2005-05-10 | 주식회사 엘지화학 | Lithium secondary battery having an improved stability |
| JP2015062587A (en) * | 2013-09-25 | 2015-04-09 | エア・ウォーター防災株式会社 | Fire-extinguishing gas generator |
| CN106267635A (en) * | 2016-08-08 | 2017-01-04 | 刘树民 | A kind of aqua type multifunctional flame-proof fire extinguisher |
| CN206595314U (en) * | 2017-02-21 | 2017-10-27 | 广州小鹏汽车科技有限公司 | A kind of batteries of electric automobile bag pressure-relief explosion-proof structure |
| CN108245804A (en) * | 2018-01-16 | 2018-07-06 | 上海应用技术大学 | A kind of in due course extinguishing method of battery pack and fire extinguishing system |
| CN209790667U (en) * | 2019-04-11 | 2019-12-17 | 深圳石头新能源科技有限公司 | New energy automobile battery package air feeder |
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| Publication number | Publication date |
|---|---|
| CN109876334A (en) | 2019-06-14 |
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