CN205920998U - Power battery explosion -proof cover - Google Patents
Power battery explosion -proof cover Download PDFInfo
- Publication number
- CN205920998U CN205920998U CN201620786024.9U CN201620786024U CN205920998U CN 205920998 U CN205920998 U CN 205920998U CN 201620786024 U CN201620786024 U CN 201620786024U CN 205920998 U CN205920998 U CN 205920998U
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- China
- Prior art keywords
- explosion
- power battery
- proof valve
- cover plate
- battery according
- 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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- 238000004880 explosion Methods 0.000 title claims abstract description 46
- 230000010485 coping Effects 0.000 claims description 39
- 238000003801 milling Methods 0.000 claims description 7
- 238000012545 processing Methods 0.000 claims description 7
- 238000002347 injection Methods 0.000 claims description 4
- 239000007924 injection Substances 0.000 claims description 4
- 239000012530 fluid Substances 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 24
- 238000010276 construction Methods 0.000 abstract description 17
- 238000005516 engineering process Methods 0.000 abstract description 5
- 238000003466 welding Methods 0.000 abstract description 2
- 238000012360 testing method Methods 0.000 description 4
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 3
- 238000007373 indentation Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 229910052744 lithium Inorganic materials 0.000 description 3
- 238000011161 development Methods 0.000 description 2
- 230000001965 increasing effect Effects 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000007639 printing Methods 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
- Gas Exhaust Devices For Batteries (AREA)
Abstract
The utility model belongs to the technical field of power battery, especially, relate to a power battery explosion -proof cover, including top cap piece and explosion -proof valve, explosion -proof valve set up in the top cap piece, just explosion -proof valve with the top cap piece is the integrated into one piece structure. The utility model discloses a blast resistant construction has not only been optimized in directly setting and top cap piece even explosion -proof valve as an organic whole on the top cap piece, has simplified production processes, has improved production efficiency, and owing to there is the difficult problem that the technology error leads to the structural instability when effectively having solved current top cap piece and explosion -proof valve and welding, the stability and the uniformity of blast resistant construction have been guaranteed to improve power battery's security performance.
Description
Technical field
This utility model belongs to power battery technology field, more particularly, to a kind of anti-explosion cover plate of power battery.
Background technology
Development with modern society and the enhancing of people's environmental consciousness, increasing equipment choice using lithium battery as
Power supply, such as mobile phone, notebook computer, electric tool and electric automobile etc., this is provided extensively with development for the application of lithium battery
Wealthy space.Wherein, the lithium battery that electric tool and electric automobile etc. are used is commonly referred to as electrokinetic cell.
For ensureing the safety of electrokinetic cell, typically on electrokinetic cell top cover, explosion-proof valve is installed.When battery is not due to
When charging, being shorted or exposed to occur unexpected in the adverse circumstances such as high temperature, the battery of high-energy will produce substantial amounts of gas
Body and temperature drastically raises, gas is washed explosion-proof valve open and is substantially increased battery to reach the purpose of pressure release, the presence of explosion-proof valve
Security performance.
In prior art, explosion-proof valve and coping plate are to be processed respectively, then are assembled.As shown in Figure 1 and 2, first on top
Explosionproof hole 2 ' is opened up on cover plate 1 ', then explosion-proof valve 3 ' is welded on the explosionproof hole 2 ' of coping plate 1 ', finally in coping plate 1 '
On add the protecting film 4 ' of explosion-proof valve 3 '.
It can be seen that, the processing technology of existing top cover blast resistance construction is not only complicated, time-consuming, and explosion-proof valve also may be used in welding
Can there is fabrication error, thus being difficult to ensure that the stability of anti-explosion valve structure in some instances it may even be possible to lead to explosion-proof defective valve.Therefore, existing
Some top cover blast resistance construction stability and concordance are poor, and production cost is high, low production efficiency.
In view of this, it is necessory to be improved further to existing top cover blast resistance construction, to improve anti-explosion valve structure
Stability and concordance, reduce production cost and improve production efficiency simultaneously.
Utility model content
In view of problem present in background technology, the purpose of this utility model is: provides a kind of power battery explosion protection lid
Plate, this cover plate blast resistance construction is simply compact and stability and concordance are high, can effectively reduce production cost and raising simultaneously
Production efficiency.
For achieving the above object, this utility model adopts the following technical scheme that
A kind of anti-explosion cover plate of power battery, including coping plate and explosion-proof valve, described explosion-proof valve is arranged at described coping plate, and
Described explosion-proof valve and described coping plate are formed in one structure.
Compared to existing, coping plate and explosion-proof valve are processed the blast resistance construction being assembled again respectively, this utility model passes through
Coping plate directly arranges the explosion-proof valve being connected as a single entity with coping plate, not only optimizes blast resistance construction, simplify production process,
Improve production efficiency；And efficiently solve existing coping plate and explosion-proof valve leads to due to there is fabrication error when being welded
A structural unstable difficult problem it is ensured that the stability of blast resistance construction and concordance, thus improving the security performance of electrokinetic cell.
As the improvement further of this utility model anti-explosion cover plate of power battery, described explosion-proof valve is coated with protecting film,
Described protecting film welds or is adhered to described coping plate.Setting protecting film can prevent sharp object or foreign body from falling in explosion-proof valve
Damage explosion-proof valve, affect explosion-proof valve performance.
As the improvement further of this utility model anti-explosion cover plate of power battery, described protecting film is provided with air-vent.Logical
Cross and set up air-vent in protecting film, for the air between release guard film, explosion-proof valve and coping plate；Carry out vacuum baking in battery
During roasting test, because internal gas pressure is consistent with outer air pressure, thus ensureing that protecting film is not in wrinkling deformation in testing, even loses
Effect.
As the improvement further of this utility model anti-explosion cover plate of power battery, described explosion-proof covering board printed by 3d or
The mode of milling machine processing is integrally formed.The explosion-proof covering board of being made into one by way of 3d prints or milling machine is processed, both letters
Change production process, and effectively shortened Production Time, production efficiency can have been greatly improved.And what 3d printing or milling machine were processed
Precision and accurately high, ensure that stability and the concordance of blast resistance construction.
As the improvement further of this utility model anti-explosion cover plate of power battery, the edge of described explosion-proof valve is provided with quarter
Trace.Setting indentation can facilitate explosion-proof valve timely valve opening pressure release, and will not entirely come off after ensureing explosion-proof valve explosion.
As the improvement further of this utility model anti-explosion cover plate of power battery, described explosion-proof valve generally circular in shape, ellipse
Circle or polygon.Wherein, explosion-proof valve can also be set to other shapes according to the actual requirements.
As the improvement further of this utility model anti-explosion cover plate of power battery, described explosion-proof valve is in uniform thickness thin
Piece.Explosion-proof valve is set to thin slice in uniform thickness, has both facilitated processing, ensure that explosion-proof performance simultaneously again.
As the improvement further of this utility model anti-explosion cover plate of power battery, the thickness of described thin slice is less than described top cover
The thickness of piece.Because thin slice is direct machine-shaping on coping plate, therefore, the thickness of thin slice is necessarily less than coping plate thickness
Disclosure satisfy that requirement of explosion proof.
As the improvement further of this utility model anti-explosion cover plate of power battery, the thickness of described thin slice is 0.01 ~ 20mm,
It is preferably 0.1 ~ 10mm.Sheet thickness is excessive, possibly cannot realize instant pressure release；Sheet thickness too small in fact it could happen that letting out in advance
Pressure, makes battery core scrap, shortens battery core service life.
As the improvement further of this utility model anti-explosion cover plate of power battery, described coping plate be additionally provided with liquid injection hole and
Pole column hole.
The beneficial effects of the utility model are: a kind of anti-explosion cover plate of power battery of this utility model, including coping plate and
Explosion-proof valve, described explosion-proof valve is arranged at described coping plate, and described explosion-proof valve and described coping plate are formed in one structure.This reality
Not only optimize blast resistance construction with new by directly arranging the explosion-proof valve being connected as a single entity with coping plate on coping plate, simplify
Production process, improves production efficiency；And efficiently solve existing coping plate and when explosion-proof valve is welded due to existing
Fabrication error leads to a structural unstable difficult problem it is ensured that the stability of blast resistance construction and concordance, thus improving electrokinetic cell
Security performance.
Brief description
Fig. 1 is the schematic diagram of top cover blast resistance construction in prior art.
Fig. 2 is the decomposing schematic representation of top cover blast resistance construction in prior art.
Fig. 3 is one of structural representation of the present utility model.
Fig. 4 is the two of structural representation of the present utility model.
Fig. 5 is decomposing schematic representation of the present utility model.
In figure: 1 '-coping plate；2 '-explosionproof hole；3 '-explosion-proof valve；4 '-protecting film；1- coping plate；2- explosion-proof valve；3- protects
Film；4- air-vent；5- liquid injection hole；6- pole column hole.
Specific embodiment
With reference to specific embodiment and Figure of description, this utility model is described in further detail, but this
The embodiment not limited to this of utility model.
As shown in Fig. 1 ~ 5, a kind of anti-explosion cover plate of power battery, including coping plate 1 and explosion-proof valve 2, explosion-proof valve 2 is arranged at top
Cover plate 1, and explosion-proof valve 2 and coping plate 1 be formed in one structure.Wherein, the explosion-proof valve 2 in explosion-proof covering board and coping plate 1 pass through
3d prints or the mode of milling machine processing is integrally formed.By way of 3d prints or milling machine is processed, being made into one is explosion-proof
Cover plate, both simplified production process, and effectively shortened Production Time, can greatly improve production efficiency.And 3d print or
The precision and accurately high of milling machine processing, ensure that stability and the concordance of blast resistance construction.
This utility model passes through directly to arrange the explosion-proof valve 2 being connected as a single entity with coping plate 1 on coping plate 1, not only optimizes
Blast resistance construction, simplifies production process, improves production efficiency；And efficiently solve existing coping plate 1 ' and explosion-proof valve 2 '
When being welded due to exist fabrication error lead to a structural unstable difficult problem it is ensured that blast resistance construction stability with consistent
Property, thus improving the security performance of electrokinetic cell.
According in this utility model anti-explosion cover plate of power battery one embodiment, explosion-proof valve 2 is coated with protecting film 3, protects
Cuticula 3 welds or is adhered to coping plate 1.Setting protecting film 3 can prevent sharp object or foreign body from falling into damage in explosion-proof valve 2 and preventing
Quick-fried valve 2, affects explosion-proof valve 2 performance.
According in this utility model anti-explosion cover plate of power battery one embodiment, protecting film 3 is provided with air-vent 4.Pass through
Set up air-vent 4 in protecting film 3, for the air between release guard film 3, explosion-proof valve 2 and coping plate 1；Carry out very in battery
During empty baking test, because internal gas pressure is consistent with outer air pressure, thus ensure protecting film 3 be not in testing wrinkling deformation,
Even lost efficacy.
According in this utility model anti-explosion cover plate of power battery one embodiment, the edge of explosion-proof valve 2 is provided with indentation.If
Put indentation and can facilitate the timely valve opening pressure release of explosion-proof valve 2, and will not entirely come off after ensureing explosion-proof valve 2 explosion.
According in this utility model anti-explosion cover plate of power battery one embodiment, explosion-proof valve 2 generally circular in shape, oval
Or polygon.Wherein, explosion-proof valve 2 can also be set to other shapes according to the actual requirements, is not especially limited here.
According in this utility model anti-explosion cover plate of power battery one embodiment, explosion-proof valve 2 is thin slice in uniform thickness.Will
Explosion-proof valve 2 is set to thin slice in uniform thickness, has both facilitated processing, ensure that explosion-proof performance simultaneously again.
According in this utility model anti-explosion cover plate of power battery one embodiment, the thickness of thin slice is less than the thickness of coping plate 1
Degree.Because thin slice is direct machine-shaping on coping plate 1, therefore, the thickness of thin slice is necessarily less than coping plate 1 thickness can
Meet requirement of explosion proof.
According in this utility model anti-explosion cover plate of power battery one embodiment, the thickness of thin slice is 0.01 ~ 20mm, preferably
For 0.1 ~ 10mm.Sheet thickness is excessive, possibly cannot realize instant pressure release；Sheet thickness too small in fact it could happen that pressure release in advance, make
Battery core is scrapped, and shortens battery core service life.
According in this utility model anti-explosion cover plate of power battery one embodiment, coping plate 1 is additionally provided with liquid injection hole 5 and pole
Post holes 6.
The announcement of book and teaching according to the above description, this utility model those skilled in the art can also be to above-mentioned reality
The mode of applying is changed and is changed.Therefore, this utility model is not limited to above-mentioned specific embodiment, every this area skill
The done any conspicuously improved, replacement on the basis of this utility model of art personnel or modification belong to this practicality newly
The protection domain of type.Although additionally, employing some specific terms in this specification, these terms are intended merely to conveniently say
Bright, any restriction is not constituted to this utility model.
Claims (10)
1. a kind of anti-explosion cover plate of power battery, including coping plate and explosion-proof valve it is characterised in that: described explosion-proof valve is arranged at described
Coping plate, and described explosion-proof valve and described coping plate be formed in one structure.
2. anti-explosion cover plate of power battery according to claim 1 it is characterised in that: be coated with protection on described explosion-proof valve
Film, described protecting film welds or is adhered to described coping plate.
3. anti-explosion cover plate of power battery according to claim 2 it is characterised in that: described protecting film is provided with air-vent.
4. anti-explosion cover plate of power battery according to claim 1 it is characterised in that: described explosion-proof covering board printed by 3d or
The mode of person's milling machine processing is integrally formed.
5. anti-explosion cover plate of power battery according to claim 1 it is characterised in that: the edge of described explosion-proof valve is provided with quarter
Trace.
6. anti-explosion cover plate of power battery according to claim 1 it is characterised in that: described explosion-proof valve generally circular in shape,
Ellipse or polygon.
7. anti-explosion cover plate of power battery according to claim 1 it is characterised in that: described explosion-proof valve be in uniform thickness thin
Piece.
8. anti-explosion cover plate of power battery according to claim 7 it is characterised in that: the thickness of described thin slice be less than described top
The thickness of cover plate.
9. anti-explosion cover plate of power battery according to claim 8 it is characterised in that: the thickness of described thin slice be 0.01 ~
20mm.
10. anti-explosion cover plate of power battery according to claim 1 it is characterised in that: described coping plate is additionally provided with fluid injection
Hole and pole column hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620786024.9U CN205920998U (en) | 2016-07-25 | 2016-07-25 | Power battery explosion -proof cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620786024.9U CN205920998U (en) | 2016-07-25 | 2016-07-25 | Power battery explosion -proof cover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205920998U true CN205920998U (en) | 2017-02-01 |
Family
ID=57872312
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620786024.9U Active CN205920998U (en) | 2016-07-25 | 2016-07-25 | Power battery explosion -proof cover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205920998U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109037505A (en) * | 2018-06-11 | 2018-12-18 | 合肥力翔电池科技有限责任公司 | A kind of explosion-proof type cylindrical high-capacity aluminum formula lithium battery cover plate |
| CN113871788A (en) * | 2021-09-29 | 2021-12-31 | 苏州东博精密制造有限公司 | Laser integrated power battery explosion-proof valve and manufacturing method thereof |
-
2016
- 2016-07-25 CN CN201620786024.9U patent/CN205920998U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109037505A (en) * | 2018-06-11 | 2018-12-18 | 合肥力翔电池科技有限责任公司 | A kind of explosion-proof type cylindrical high-capacity aluminum formula lithium battery cover plate |
| CN113871788A (en) * | 2021-09-29 | 2021-12-31 | 苏州东博精密制造有限公司 | Laser integrated power battery explosion-proof valve and manufacturing method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20211208 Address after: 215500 No. 68, Xin'anjiang Road, Southeast street, Changshu, Suzhou, Jiangsu Patentee after: Jiangsu Zenergy Battery Technologies Co.,ltd Address before: 518000 813, floor 8, building 3, block B, Yili building, the junction of Nanshan Avenue and Chuangye Road, Nanshan street, Shenzhen, Guangdong Patentee before: SHENZHEN TAFEL NEW ENERGY TECHNOLOGY Co.,Ltd. Patentee before: DONGGUAN TAFEL NEW ENERGY TECHNOLOGY Co.,Ltd. |
|
| TR01 | Transfer of patent right |