CN205542964U - Battery box body - Google Patents
Battery box body Download PDFInfo
- Publication number
- CN205542964U CN205542964U CN201620132551.8U CN201620132551U CN205542964U CN 205542964 U CN205542964 U CN 205542964U CN 201620132551 U CN201620132551 U CN 201620132551U CN 205542964 U CN205542964 U CN 205542964U
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- China
- Prior art keywords
- battery
- unit
- battery case
- aerogenesis
- explosion
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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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Abstract
The utility model belongs to the technical field of the battery, in particular to battery box body, including box, cell, explosion -proof valve and product gas unit, the box is provided with the cavity, cell with produce the gas unit set up in all set up in in the cavity, explosion -proof valve with the cavity intercommunication. When the condition such as battery in battery box body took place to fill, inefficacy produce a large amount of high temperature high -pressure gas, make the utility model discloses the product gas unit that sets up is heated and produces gas to increase the pressure in the battery box body in advance, make the explosion -proof valve that is located on the box open in advance, and then with the high temperature high -pressure gas that the battery the produced battery box body that in time discharges, prevent that battery box body from blasting, guarantee battery box body's security.
Description
Technical field
This utility model belongs to cell art, particularly to a kind of Battery case.
Background technology
Existing electrokinetic cell casing is to solve battery core to produce the emission problem of high temperature and high pressure gas when overcharging, losing efficacy, one explosion-proof valve is often installed on electrokinetic cell casing, carry out the atmospheric pressure inside and outside balanced power Battery case, and when power battery core overcharges generation high temperature and high pressure gas, open explosion-proof valve, discharge the high temperature and high pressure gas in power battery box body.
Inside and outside explosion-proof valve balancing battery to be played casing on electrokinetic cell casing while the effect of atmospheric pressure, IP protection safety rank requirement to be met, therefore explosion-proof valve to open pressure values the biggest.When over-charging of battery lost efficacy and produced a large amount of high temperature and high pressure gas and when there is burning, due to explosion-proof valve to open pressure values bigger, these high temperature and high pressure gas need after power battery box cylinder accumulation a period of time forms certain pressure intensity, just can open explosion-proof valve to lose heart, if the high temperature and high pressure gas accumulating generation in this process discharges the structure that not only can destroy electrokinetic cell casing not in time, also it is very easy to set off an explosion.
Utility model content
The purpose of this utility model is: for the deficiencies in the prior art, and a kind of Battery case is provided, this body structure is provided with aerogenesis unit, aerogenesis unit can increase the pressure in Battery case in advance, the explosion-proof valve being positioned on casing is opened in advance, the high temperature and high pressure gas that battery produces is discharged Battery case in time, prevents Battery case from exploding, it is ensured that the safety of Battery case.
In order to achieve the above object, this utility model adopts the following technical scheme that
A kind of Battery case, including casing, battery unit, explosion-proof valve and aerogenesis unit, described casing is provided with chamber, described battery unit and described aerogenesis unit and may be contained within described chamber, described explosion-proof valve and described chamber.
As a kind of improvement of Battery case described in the utility model, described aerogenesis unit is sodium bicarbonate layer, carbonate horizon, ammonia salt deposit or foaming oxidant layer.
As a kind of improvement of Battery case described in the utility model, described aerogenesis unit is laid in the inwall of described casing, and described aerogenesis unit is set to " П " shape structure.
As a kind of improvement of Battery case described in the utility model, described aerogenesis unit is piled up around described battery unit, and described aerogenesis unit is set to " one " character form structure.
As a kind of improvement of Battery case described in the utility model, the thickness of described aerogenesis unit is 1.8 ~ 3mm.
As a kind of improvement of Battery case described in the utility model, the thickness of described aerogenesis unit is 2.5mm.
As a kind of improvement of Battery case described in the utility model, described casing includes that upper box and lower box, described upper box and described lower box are tightly connected.
The beneficial effects of the utility model are: when the battery in Battery case overcharge, the situation such as inefficacy produce a large amount of high temperature and high pressure gas time, the aerogenesis unit promoting this utility model to arrange is heated and aerogenesis, thus increase the pressure in Battery case in advance, the explosion-proof valve being positioned on casing is opened in advance, and then the high temperature and high pressure gas that battery produces is discharged Battery case in time, prevent Battery case from exploding, it is ensured that the safety of Battery case.
Accompanying drawing explanation
Fig. 1 is the structural representation of this utility model detailed description of the invention 1.
Fig. 2 is the structural representation of this utility model detailed description of the invention 2.
Wherein: 1-casing, 11-upper box, 12-lower box, 13-chamber；2-battery unit；3-explosion-proof valve；4-aerogenesis unit.
Detailed description of the invention
Below in conjunction with detailed description of the invention and Figure of description, this utility model is described in further detail, but embodiment of the present utility model is not limited to this.
Detailed description of the invention
1
Refer to Fig. 1, a kind of battery case, including casing 1, battery unit 2, explosion-proof valve 3 and aerogenesis unit 4, casing 1 is provided with chamber 13, battery unit 2 and aerogenesis unit 4 may be contained within chamber 13, explosion-proof valve 3 connects with chamber 13, just can be passed through in explosion-proof valve 3 by gas high for air pressure by chamber 13, thus realize the pressure release of explosion-proof valve 3 after aerogenesis unit 4 is heated aerogenesis.Above-mentioned aerogenesis unit 4 generally sodium bicarbonate layer, carbonate horizon, ammonia salt deposit or foaming oxidant layer, aerogenesis unit 4 is preferably sodium bicarbonate layer by present embodiment, because sodium bicarbonate layer uses more universal, and low cost, usually, at 104 DEG C, (when overcharging experiment in early stage, after finding battery failure, the temperature in Battery case can be rapidly reached about 100 degree to the decomposition temperature of sodium bicarbonate layer, therefore when temperature reaches 100 degree, it is possible to judge that battery there occurs inefficacy.) left and right, substantial amounts of carbon dioxide (when using ammonia salt deposit, ammonia can be produced) can be produced during decomposition, thus increase the air pressure in this utility model Battery case, it is achieved opening in advance of explosion-proof valve 3, it is ensured that the safety of Battery case.
Preferably, aerogenesis unit 4 is laid in the inwall of casing 1, and aerogenesis unit 4 is set to " П " shape structure, the thickness of aerogenesis unit 4 is 1.8 ~ 3mm, aerogenesis unit 4 is conducive to preferably to be heated aerogenesis in this thickness range, when aerogenesis unit 4 thickness is less than 1.8mm, aerogenesis unit 4 aerogenesis speed is relatively slow, and service life is the longest；When aerogenesis unit 4 thickness is more than 3mm, it is unfavorable for cost-effective；The thickness of aerogenesis unit 4 is set to 2.5mm by present embodiment.
Preferably, casing 1 includes that upper box 11 and lower box 12, upper box 11 and lower box 12 are tightly connected, and is conducive to the pressure concordance in holding Battery case.
Detailed description of the invention
2
Refer to Fig. 2, unlike detailed description of the invention 1: the aerogenesis unit 4 of present embodiment is piled up in battery unit 2 around, and aerogenesis unit 4 is set to " one " character form structure.Owing to piling up in battery unit 2 around by multiple aerogenesis unit 4 so that closely realize heat transfer between them, so it is more beneficial for the aerogenesis that is heated of aerogenesis unit 4.Additionally aerogenesis unit 4 is set to " one " character form structure, is the piling up of aerogenesis unit 4 for convenience, aerogenesis unit 4 can also be set to other shapes the most as required, be not especially limited here.
Other the structure with detailed description of the invention 1 is identical, repeats no more here.
The announcement of book and teaching according to the above description, this utility model those skilled in the art can also carry out suitable change and amendment to above-mentioned embodiment.Therefore, this utility model is not limited to detailed description of the invention disclosed and described above, should also be as falling in scope of the claims of the present utility model to modifications and changes more of the present utility model.Although additionally, employ some specific terms in this specification, but these terms are merely for convenience of description, this utility model is not constituted any restriction.
Claims (7)
1. a Battery case, it is characterised in that: including casing, battery unit, explosion-proof valve and aerogenesis unit, described casing is provided with chamber, described battery unit and described aerogenesis unit and may be contained within described chamber, described explosion-proof valve and described chamber.
Battery case the most according to claim 1, it is characterised in that: described aerogenesis unit is sodium bicarbonate layer, carbonate horizon, ammonia salt deposit or foaming oxidant layer.
Battery case the most according to claim 1, it is characterised in that: described aerogenesis unit is laid in the inwall of described casing, and described aerogenesis unit is set to " П " shape structure.
Battery case the most according to claim 1, it is characterised in that: described aerogenesis unit is piled up around described battery unit, and described aerogenesis unit is set to " one " character form structure.
5. according to the Battery case described in claim 3 or 4, it is characterised in that: the thickness of described aerogenesis unit is 1.8 ~ 3mm.
Battery case the most according to claim 5, it is characterised in that: the thickness of described aerogenesis unit is 2.5mm.
Battery case the most according to claim 1, it is characterised in that: described casing includes that upper box and lower box, described upper box and described lower box are tightly connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620132551.8U CN205542964U (en) | 2016-02-22 | 2016-02-22 | Battery box body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620132551.8U CN205542964U (en) | 2016-02-22 | 2016-02-22 | Battery box body |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205542964U true CN205542964U (en) | 2016-08-31 |
Family
ID=56778937
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620132551.8U Active CN205542964U (en) | 2016-02-22 | 2016-02-22 | Battery box body |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205542964U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018176979A1 (en) * | 2017-03-31 | 2018-10-04 | 比亚迪股份有限公司 | Battery electrode and method for fabricating same, and lithium-ion battery |
| CN109326759A (en) * | 2018-10-30 | 2019-02-12 | 广州小鹏汽车科技有限公司 | Pressure-regulating device and battery system |
| CN113300046A (en) * | 2021-05-21 | 2021-08-24 | 广州小鹏汽车科技有限公司 | Battery module explosion-proof structure and battery module explosion-proof control method |
| CN114864948A (en) * | 2022-07-06 | 2022-08-05 | 宁德新能源科技有限公司 | Electrochemical device and power utilization device |
-
2016
- 2016-02-22 CN CN201620132551.8U patent/CN205542964U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018176979A1 (en) * | 2017-03-31 | 2018-10-04 | 比亚迪股份有限公司 | Battery electrode and method for fabricating same, and lithium-ion battery |
| CN109326759A (en) * | 2018-10-30 | 2019-02-12 | 广州小鹏汽车科技有限公司 | Pressure-regulating device and battery system |
| CN113300046A (en) * | 2021-05-21 | 2021-08-24 | 广州小鹏汽车科技有限公司 | Battery module explosion-proof structure and battery module explosion-proof control method |
| CN114864948A (en) * | 2022-07-06 | 2022-08-05 | 宁德新能源科技有限公司 | Electrochemical device and power utilization device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |