CN209389114U - The anti-fracture structure of lithium ion battery explosion-proof piece - Google Patents
The anti-fracture structure of lithium ion battery explosion-proof piece Download PDFInfo
- Publication number
- CN209389114U CN209389114U CN201920414467.9U CN201920414467U CN209389114U CN 209389114 U CN209389114 U CN 209389114U CN 201920414467 U CN201920414467 U CN 201920414467U CN 209389114 U CN209389114 U CN 209389114U
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- CN
- China
- Prior art keywords
- rupture disk
- explosion
- slot
- explosion rupture
- interconnecting piece
- 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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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
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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- Sealing Battery Cases Or Jackets (AREA)
Abstract
The utility model relates to a kind of anti-fracture structures of lithium ion battery explosion-proof piece, including sealing ring, explosion rupture disk and connection aluminium flake, explosion rupture disk has the central part being bonded with the upper arch surface for connecting aluminium flake center sinking, central part upper surface two sides, which are respectively provided with, splits slot, cage ring is equipped between explosion rupture disk bottom surface and connection aluminium flake outer top surface, explosion rupture disk periphery has the upper curved flanging of folding, support steel loop is arranged in the card slot formed between flanging and explosion rupture disk ontology, the explosion rupture disk from central part it is oblique on extend to card slot end formed interconnecting piece, there is the protrusion of surface arc-shaped transition positioned at the interconnecting piece outer end at card slot end, slot is split under having in the interconnecting piece bottom surface of respective protrusions position.The utility model is concentrated so as to the stress that generates riveting by the way that protrusion is arranged in the interconnecting piece two sides of explosion rupture disk, without allow distortional stress conduct it is supreme split slot, under split explosion-proof area where slot, effectively prevent splitting slot, under split the phenomenon of rupture of slot.
Description
Technical field
The utility model relates to a kind of anti-fracture structures of lithium ion battery explosion-proof piece.
Background technique
Explosion rupture disk used in lithium ion battery, the center portion thereof position is sunk to be bonded with the connection aluminium flake of lower section, using opening up
The slot that splits in explosion rupture disk centre and two sides acts on, and lithium battery interior pressure increases Shi Kechong breaking groove and releases stress.And
Explosion rupture disk is easy to produce deformation after riveting, and the stress that riveting deformation generates easily is transferred to explosion-proof area, causes to split slot appearance
Be broken in advance, or the situation not turned off when explosion-proof and lose explosion-proof.
Summary of the invention
Technical problem to be solved by the utility model is: the utility model provides in order to overcome the deficiencies in the existing technology
A kind of anti-fracture structure can effectively prevent the lithium ion battery explosion-proof piece that riveting stress causes explosion-proof slot to be broken,
The technical scheme adopted by the utility model to solve the technical problem is as follows: a kind of lithium ion battery explosion-proof piece is anti-breaking
Split structure, be installed in the battery cap, the nut cap include sealing ring, the explosion rupture disk being fastened in sealing ring inner ring and
The connection aluminium flake being located at below explosion rupture disk, explosion rupture disk have sagging central part, and central part upper surface two sides, which are respectively provided with, to be split
Slot, the central part bottom surface and connect aluminium flake center upper arch surface be bonded, be located at explosion rupture disk bottom surface with connect aluminium flake outside
Cage ring is equipped between top surface, the explosion rupture disk periphery has the upper curved flanging of folding, formed between flanging and explosion rupture disk ontology
Card slot in be arranged with support steel loop, the explosion rupture disk from central part it is oblique on extend to card slot end and form interconnecting piece, be located at card
The interconnecting piece outer end at slot end has the protrusion of surface arc-shaped transition, and slot is split under having in the interconnecting piece bottom surface of respective protrusions position.
The beneficial effects of the utility model are: the utility model is raised by being arranged in the interconnecting piece two sides of explosion rupture disk, from
And the stress that can generate riveting is concentrated, without allow distortional stress conduct it is supreme split slot, under split explosion-proof area where slot, effectively
Ground prevent split slot, under split the phenomenon of rupture of slot, while the battery capacity space of lower part is also not take up using upward protrusion.
Detailed description of the invention
The present invention will be further described with embodiment with reference to the accompanying drawing.
Fig. 1 is the structural schematic diagram of the utility model.
In figure: 1. sealing rings, 2. explosion rupture disks, 2-1. central part split slot on 2-2., 2-3. flanging, 2-4. card slot, and 2-5. is convex
It rises, slot, 3. connection aluminium flakes, 4. cage rings, 5. support steel loops is split under 2-6..
Specific embodiment
The utility model is described in further detail presently in connection with attached drawing.These attached drawings are simplified schematic diagram,
Only illustrate the basic structure of the utility model in a schematic way, therefore it only shows composition related with the utility model.
A kind of anti-fracture structure of lithium ion battery explosion-proof piece as shown in Figure 1, is installed in the battery cap, described
Nut cap includes sealing ring 1, the explosion rupture disk 2 being fastened in 1 inner ring of sealing ring and the connection aluminium flake 3 for being located at 2 lower section of explosion rupture disk, is prevented
There is sagging central part 2-1 quick-fried 2, the upper surface central part 2-1 two sides, which are respectively provided with, splits slot 2-2, the bottom the central part 2-1
Face is bonded with the upper arch surface for connecting 3 center of aluminium flake, is equipped between 2 bottom surface of explosion rupture disk and connection 3 outer top surface of aluminium flake
Cage ring 4.
2 periphery of explosion rupture disk has the upper curved flanging 2-3 of folding, the card formed between 2 ontology of flanging 2-3 and explosion rupture disk
Support steel loop 5 is arranged in slot 2-4, to improve the intensity of explosion rupture disk 2.
The explosion rupture disk 2 from central part 2-1 it is oblique on extend to the end card slot 2-4 formed interconnecting piece, positioned at the end card slot 2-4
Interconnecting piece outer end has the raised 2-5 of surface arc-shaped transition, and slot 2- is split under having in the interconnecting piece bottom surface of the position respective protrusions 2-5
6。
The utility model is by being arranged protrusion 2-5 in the interconnecting piece two sides of explosion rupture disk 2, so as to the stress for generating riveting
Concentrate, without allow distortional stress conduct it is supreme split slot 2-2, under split explosion-proof area where slot 2-6, effectively prevent splitting slot
2-2, under split the phenomenon of rupture of slot 2-6, while the battery capacity space of lower part is also not take up using upward raised 2-5.
It is enlightenment, through the above description, related work people with the above-mentioned desirable embodiment according to the utility model
Member can carry out various changes and amendments in the range of without departing from this item utility model technical idea completely.This item is real
It is not limited to the contents of the specification with novel technical scope, it is necessary to its technology is determined according to scope of the claims
Property range.
Claims (1)
1. a kind of anti-fracture structure of lithium ion battery explosion-proof piece, is installed in the battery cap, the nut cap includes sealing
(1), the explosion rupture disk (2) being fastened in sealing ring (1) inner ring and the connection aluminium flake (3) being located at below explosion rupture disk (2) are enclosed, it is explosion-proof
Piece (2) has sagging central part (2-1), and the upper surface two sides central part (2-1), which are respectively provided with, splits slot (2-2), the center
The portion bottom surface (2-1) and connect aluminium flake (3) center upper arch surface be bonded, be located at explosion rupture disk (2) bottom surface with connect aluminium flake (3) outside
Be equipped with cage ring (4) between the top surface of side, explosion rupture disk (2) periphery has a curved flanging (2-3) of upper folding, flanging (2-3) with
Support steel loop (5) is arranged in the card slot (2-4) formed between explosion rupture disk (2) ontology, it is characterized in that: the explosion rupture disk (2)
From central part (2-1) tiltedly on extend to card slot (2-4) end form interconnecting piece, be located at card slot (2-4) end interconnecting piece outer end tool
Slot (2-6) is split under having the protrusion (2-5) of surface arc-shaped transition, the interconnecting piece bottom surface of the position respective protrusions (2-5) to have.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920414467.9U CN209389114U (en) | 2019-03-28 | 2019-03-28 | The anti-fracture structure of lithium ion battery explosion-proof piece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920414467.9U CN209389114U (en) | 2019-03-28 | 2019-03-28 | The anti-fracture structure of lithium ion battery explosion-proof piece |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209389114U true CN209389114U (en) | 2019-09-13 |
Family
ID=67852337
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920414467.9U Active CN209389114U (en) | 2019-03-28 | 2019-03-28 | The anti-fracture structure of lithium ion battery explosion-proof piece |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209389114U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022088829A1 (en) * | 2020-10-29 | 2022-05-05 | 深圳市比克动力电池有限公司 | Novel cylindrical lithium battery cap and novel cylindrical lithium battery |
-
2019
- 2019-03-28 CN CN201920414467.9U patent/CN209389114U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022088829A1 (en) * | 2020-10-29 | 2022-05-05 | 深圳市比克动力电池有限公司 | Novel cylindrical lithium battery cap and novel cylindrical lithium battery |
| EP4044350A4 (en) * | 2020-10-29 | 2024-03-06 | Shenzhen Bak Power Battery Co Ltd | Novel cylindrical lithium battery cap and novel cylindrical lithium battery |
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| GR01 | Patent grant |