CN203192873U - Lithium battery explosion-proof cap - Google Patents
Lithium battery explosion-proof cap Download PDFInfo
- Publication number
- CN203192873U CN203192873U CN2013201303159U CN201320130315U CN203192873U CN 203192873 U CN203192873 U CN 203192873U CN 2013201303159 U CN2013201303159 U CN 2013201303159U CN 201320130315 U CN201320130315 U CN 201320130315U CN 203192873 U CN203192873 U CN 203192873U
- Authority
- CN
- China
- Prior art keywords
- explosion
- cover plate
- upper cover
- shell
- proof
- 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.)
- Expired - Fee Related
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Classifications
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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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- Gas Exhaust Devices For Batteries (AREA)
Abstract
The utility model provides a lithium battery explosion-proof cap. The explosion-proof cap comprises an upper cover plate, an explosion-proof sheet and a shell, wherein the shell is fixedly connected with the upper cover plate, and the explosion-proof sheet is arranged between the shell and the upper cover plate; air vents are formed in the upper cover plate, vents are formed in the shell, and scores are formed in the explosion-proof sheet; the edge part of the shell is rolled to form a containing part, and the edges of the upper cover plate and the explosion-proof sheet are combined together to be put into the containing part. A riveting wrapping mode is adopted to be matched with the upper cover plate, the explosion-proof sheet and the shell together, and the explosion-proof cap has small internal resistance and is very stable; and when the internal air pressure of a battery is more than 15KG, air squeezes the scores in the explosion-proof sheet through the vents and then is discharged through the air vents in the upper cover plate, so that a battery is prevented from exploding through exhausting and pressure releasing.
Description
Technical field
The utility model relates to a kind of lithium battery, refers in particular to explosion-proof cap provided thereon.
Background technology
Lithium ion battery explosion-proof cap is the significant components of guaranteeing cell safety, though lithium ion battery has cell operating voltage height, in light weight, advantage such as volume is little, but also there are some safe secret worries simultaneously, typically be exactly at high temperature or cross under the charge status, inside battery can sharply produce hyperbar, thereby causes spontaneous combustion or blast.Though present common overlapping combined type explosion-proof cap can to a certain degree got rid of potential safety hazard, and is bigger because of its internal resistance, thereby reduced the serviceability of battery.
The utility model content
The purpose of this utility model is to provide a kind of explosion-proof cover cap of lithium battery, adopts the mode of riveted parcel that upper cover plate, burst disk, housing are fit together, and its internal resistance is less, has improved the utility model of battery.
The technical solution adopted in the utility model is:
A kind of explosion-proof cover cap of lithium battery comprises upper cover plate, burst disk, housing, and described housing is fixedlyed connected with upper cover plate and burst disk is located between the two; Described upper cover plate is provided with air-vent, and housing is provided with air vent hole, and burst disk is provided with indentation; The edge part backrush of described housing forms the accommodation section, and upper cover plate is put in the accommodation section after the edge of burst disk is incorporated into.
Further, described housing adopts aluminium to make.
The utility model beneficial effect: adopt the mode of riveted parcel that upper cover plate, burst disk, housing are fit together, its internal resistance is less, and highly stable; When inside battery air pressure during greater than 15KG, gas is discharged from the air-vent of upper cover plate by the indentation that air vent hole enters on the squeeze crack burst disk again, and exhaust pressure relief prevents battery explosion.
Description of drawings
Fig. 1 is the utility model schematic cross-section;
Fig. 2 is use state reference map of the present utility model;
Fig. 3 is the burst disk of the present utility model schematic diagram that splits.
Embodiment
In order to make those skilled in the art person understand this New Scheme better, below in conjunction with drawings and embodiments to this novel being described in further detail.
As shown in Figure 1, a kind of explosion-proof cover cap of lithium battery comprises upper cover plate 1, burst disk 2, housing 3, and described housing 3 is fixedlyed connected with upper cover plate 1 and burst disk 2 is located between the two; Described upper cover plate is provided with air-vent 11, and housing is provided with air vent hole 31, and burst disk is provided with indentation 21; The edge part backrush of described housing forms accommodation section 32, and the edge of upper cover plate and burst disk is put in the accommodation section after combining by impact style.
As shown in Figure 2, be the schematic diagram that lithium battery electric core, shell are combined with the utility model, the gas flow when producing gas in the battery is direction as shown by arrows.
As shown in Figure 3, when inside battery air pressure during greater than 15KG, gas is entered by air vent hole, and the indentation 21 on the squeeze crack burst disk is discharged from the air-vent 11 of upper cover plate again, and exhaust pressure relief prevents battery explosion.
Though described the invention by embodiment, those of ordinary skills know, the present invention has many distortion and variation and do not break away from spirit of the present invention, wish that appended claim comprises these distortion and variation and do not break away from spirit of the present invention.
Claims (2)
1. an explosion-proof cover cap of lithium battery comprises upper cover plate, burst disk, housing, and described housing is fixedlyed connected with upper cover plate and burst disk is located between the two; Described upper cover plate is provided with air-vent, and housing is provided with air vent hole, and burst disk is provided with indentation; It is characterized in that the edge part backrush of described housing forms the accommodation section, upper cover plate is put in the accommodation section after the edge of burst disk is incorporated into.
2. a kind of explosion-proof cover cap of lithium battery as claimed in claim 1 is characterized in that, described housing adopts aluminium to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013201303159U CN203192873U (en) | 2013-03-20 | 2013-03-20 | Lithium battery explosion-proof cap |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013201303159U CN203192873U (en) | 2013-03-20 | 2013-03-20 | Lithium battery explosion-proof cap |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203192873U true CN203192873U (en) | 2013-09-11 |
Family
ID=49109704
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013201303159U Expired - Fee Related CN203192873U (en) | 2013-03-20 | 2013-03-20 | Lithium battery explosion-proof cap |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203192873U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104868067A (en) * | 2015-05-29 | 2015-08-26 | 芜湖天盛伟业新能源有限公司 | Lithium battery cap |
| CN111331045A (en) * | 2020-03-02 | 2020-06-26 | 深圳市奥科立自动化有限公司 | Battery block binding device |
-
2013
- 2013-03-20 CN CN2013201303159U patent/CN203192873U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104868067A (en) * | 2015-05-29 | 2015-08-26 | 芜湖天盛伟业新能源有限公司 | Lithium battery cap |
| CN111331045A (en) * | 2020-03-02 | 2020-06-26 | 深圳市奥科立自动化有限公司 | Battery block binding device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130911 Termination date: 20140320 |