CN209418616U - A kind of explosion rupture disk for lithium battery cover plate - Google Patents
A kind of explosion rupture disk for lithium battery cover plate Download PDFInfo
- Publication number
- CN209418616U CN209418616U CN201821861048.1U CN201821861048U CN209418616U CN 209418616 U CN209418616 U CN 209418616U CN 201821861048 U CN201821861048 U CN 201821861048U CN 209418616 U CN209418616 U CN 209418616U
- Authority
- CN
- China
- Prior art keywords
- lithium battery
- rupture disk
- pressure release
- explosion rupture
- release portion
- 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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- 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 discloses a kind of explosion rupture disks for lithium battery cover plate, it is related to the technical field of lithium battery, it solves existing explosion rupture disk to be covered on lithium battery cover plate simply by one layer of thin slice mostly, when the rupture of lithium battery interior pressure rise explosion rupture disk, explosion rupture disk can generate clast and rapidly shed outward, its clast is easy to drop down onto the problem for causing cleaning inconvenient inside machine components, its key points of the technical solution are that: including interconnecting piece and pressure release portion, the interconnecting piece and pressure release portion are integrated setting, and connecting portion is in the outer circumferential in pressure release portion, the impression of arcuately path setting is offered in the pressure release portion, the outer circumferential in pressure release portion is arranged in the impression, clast flies out after can be avoided explosion rupture disk rupture.
Description
Technical field
The utility model relates to the technical field of lithium battery, in particular to a kind of explosion rupture disk for lithium battery cover plate.
Background technique
The appearance of battery is the life of our mankind, amusement and work provide important power supply guarantee.With society
The progress of development and human civilization, one-shot battery is due to the pollution to environment, capacity is low, using the time it is short the disadvantages of gradually will be by
The secondary cell for the advantages that superseded instead pollution-free, capacity is big, long service life, wherein lithium battery it is distinctive from
Body structure and performance are widely applied to every field, as laptop, mobile power source, electric tool etc. are exactly therein
It represents.
But lithium battery leads to inside during use sometimes because external environment causes internal adverse reaction
Pressure rise expands, and can even explode when serious, there are biggish security risks, therefore on existing lithium battery all
Explosion rupture disk can be set to guarantee safety that lithium battery uses, but explosion rupture disk is covered on lithium battery simply by one layer of thin slice mostly
On cover board, when the rupture of lithium battery interior pressure rise explosion rupture disk, explosion rupture disk can generate clast and rapidly shed outward, and clast holds
It easily drops down onto and causes cleaning inconvenient inside machine components.
Utility model content
The purpose of the utility model is to provide a kind of explosion rupture disks for lithium battery cover plate, after can be avoided explosion rupture disk rupture
Clast flies out.
The above-mentioned technical purpose of the utility model has the technical scheme that
A kind of explosion rupture disk for lithium battery cover plate, including interconnecting piece and pressure release portion, the interconnecting piece and pressure release portion are one
Body setting, and connecting portion is in the impression for offering arcuately path setting on the outer circumferential in pressure release portion, the pressure release portion, institute
State the outer circumferential that pressure release portion is arranged in impression.
By using above-mentioned technical proposal, by the way that explosion rupture disk is provided with interconnecting piece and pressure release portion, connecting portion is in pressure release
The outside in portion is for welding or being adhesively fixed on lithium battery cover plate, by offering setting in pressure release portion in pressure release portion circumferential direction
The impression in outside, when lithium battery interior pressure rise is to early warning value, pressure release portion expands outward finally to be ruptured along impression path, energy
It is enough to release the pressure of lithium battery interior, to guarantee the safety that lithium battery uses, and impression is not opened up after explosion rupture disk rupture
Side will not completely and coupling part is from making explosion rupture disk not generate the clast to fly out, avoid impacting machine components.
Preferably, the path of the impression is to have circular path jaggy, the angle of the notch is 50 ° -70 °.
By using above-mentioned technical proposal, by setting impression path to have circular path jaggy, while will lack
Mouthful angle be set as 50 ° -70 °, the notch within the angle, can facilitate pressure release portion rupture pressure release while can
Guarantee the stability that pressure release portion is connect with interconnecting piece.
Preferably, the pressure release portion has the cambered surface heaved to impression side.
By using above-mentioned technical proposal, with the raising of lithium battery interior pressure, by can by the cambered surface in pressure release portion
It heaves outward, bigger pressure can be undertaken with less material.
Preferably, the explosion rupture disk is circular configuration.
By using above-mentioned technical proposal, by the way that explosion rupture disk is provided in round structure, in explosion rupture disk swelling fracture
Breakdown point is the central point of explosion rupture disk, can guarantee the stability for rupturing air pressure.
Preferably, the diameter of the impression and the diameter proportion of interconnecting piece outer ring are 2:3.
By using above-mentioned technical proposal, by being setting for 2:3 by the diameter proportion of the diameter of impression and interconnecting piece outer ring
Meter, the area for enabling to pressure release portion to rupture reaches a bigger value, so as to achieve the effect that quick pressure releasing.
Preferably, the diameter proportion of the diameter of the interconnecting piece outer ring and interconnecting piece inner ring is 6:5.
By using above-mentioned technical proposal, by setting 6:5 for the diameter ratio of interconnecting piece outer ring and inner ring, in this diameter
Interconnecting piece than under will not occupy excessive material, can be avoided material under the premise of conveniently connecting with lithium battery cover plate
Waste.
Preferably, the race diameter of the interconnecting piece is 18mm, the inner ring diameter of the interconnecting piece is 15mm, the company
The thickness in socket part and pressure release portion is 2mm.
It is anti-under this thickness by setting 2mm for the thickness in interconnecting piece and pressure release portion by using above-mentioned technical proposal
Quick-fried can rupture carry out pressure release when lithium battery interior pressure reaches predetermined value.
Preferably, the explosion rupture disk is made of aluminium.
By using above-mentioned technical proposal, by the way that explosion rupture disk is made by aluminium, aluminium has preferable deformability,
The deformation fracture of explosion rupture disk can be facilitated to carry out pressure release.
In conclusion the utility model has the following beneficial effects:
By opening up impression in pressure release portion, enables to explosion rupture disk that can be ruptured along impression in rupture, prevent
The side for not opening up impression after quick-fried rupture will not completely and coupling part is from making explosion rupture disk not generate the clast to fly out, keep away
Exempt to impact machine components.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of explosion rupture disk；
Fig. 2 is that explosion rupture disk is connected to the schematic diagram one on lithium battery cover plate；
Fig. 3 is the cross-sectional view of explosion rupture disk；
Fig. 4 is the front view of explosion rupture disk；
Fig. 5 is that explosion rupture disk is connected to the schematic diagram two on lithium battery cover plate.
In figure, 1, interconnecting piece；2, pressure release portion；21, impression；22, notch；23, explosion-proof line.
Specific embodiment
The utility model is described in further detail below in conjunction with attached drawing.
Referring to Figures 1 and 2, the utility model proposes a kind of explosion rupture disk for lithium battery cover plate, explosion rupture disk passes through aluminium
Material is made, whole rounded structure, includes interconnecting piece 1 for connecting lithium battery cover plate and to be located at interconnecting piece 1 circumferential
The pressure release portion 2 of inside.
Referring to Fig. 3 and Fig. 4, interconnecting piece 1 and pressure release portion 2 are integrated setting, and have circle between interconnecting piece 1 and pressure release portion 2
Arc transition, the impression 21 of arcuately path setting is provided in pressure release portion 2, and the path of impression 21 is the round road with notch 22
Diameter, the angle of notch 22 are 50 ° -70 °, and pressure release portion 2 is that boundary heaves to form cambered surface to the side with impression 21 with impression 21,
The back side that pressure release portion 2 is located at impression 21 forms explosion-proof line 23 by impression 21.
The diameter of 1 outer ring of interconnecting piece and the diameter ratio of 1 inner ring of interconnecting piece are 6:5, the diameter of impression 21 and 1 outer ring of interconnecting piece
Diameter ratio be 2:3, in the present embodiment, the diameter of 1 outer ring of interconnecting piece is 18mm, and the diameter of 1 inner ring of interconnecting piece is 15mm, connection
The thickness in portion 1 and pressure release portion 2 is 2mm, and the curved path diameter that impression 21 is formed is 12mm.
Use principle:
In conjunction with Fig. 5, in lithium battery use process, as lithium battery interior adverse reaction leads to lithium battery interior
Pressure rise, lithium battery integrally expand, and after lithium battery interior pressure reaches predetermined value, explosion rupture disk will be along impression 21
Rupture outward.
This specific embodiment is only the explanation to the utility model, is not limitations of the present invention, ability
Field technique personnel can according to need the modification that not creative contribution is made to the present embodiment after reading this specification, but
As long as all by the protection of Patent Law in the scope of the claims of the utility model.
Claims (8)
1. a kind of explosion rupture disk for lithium battery cover plate, which is characterized in that including interconnecting piece (1) and pressure release portion (2), the connection
Portion (1) and pressure release portion (2) are integrated setting, and interconnecting piece (1) is located at the outer circumferential in pressure release portion (2), on the pressure release portion (2)
Offer the impression (21) of arcuately path setting, outer circumferential of impression (21) setting in pressure release portion (2).
2. a kind of explosion rupture disk for lithium battery cover plate according to claim 1, which is characterized in that the impression (21)
Path is the circular path with notch (22), and the angle of the notch (22) is 50 ° -70 °.
3. a kind of explosion rupture disk for lithium battery cover plate according to claim 1, which is characterized in that the pressure release portion (2)
With the cambered surface heaved to impression (21) side.
4. a kind of explosion rupture disk for lithium battery cover plate according to claim 1, which is characterized in that the explosion rupture disk is circle
Shape structure.
5. a kind of explosion rupture disk for lithium battery cover plate according to claim 1, which is characterized in that the impression (21)
Diameter and the diameter proportion of interconnecting piece (1) outer ring are 2:3.
6. a kind of explosion rupture disk for lithium battery cover plate according to claim 1, which is characterized in that the interconnecting piece (1)
The diameter of outer ring and the diameter proportion of interconnecting piece (1) inner ring are 6:5.
7. a kind of explosion rupture disk for lithium battery cover plate according to claim 6, which is characterized in that the interconnecting piece (1)
Race diameter be 18mm, the inner ring diameter of the interconnecting piece (1) is 15mm, the thickness of the interconnecting piece (1) and pressure release portion (2)
It is 2mm.
8. a kind of explosion rupture disk for lithium battery cover plate according to claim 1, which is characterized in that the explosion rupture disk is aluminium
Material is made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821861048.1U CN209418616U (en) | 2018-11-12 | 2018-11-12 | A kind of explosion rupture disk for lithium battery cover plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821861048.1U CN209418616U (en) | 2018-11-12 | 2018-11-12 | A kind of explosion rupture disk for lithium battery cover plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209418616U true CN209418616U (en) | 2019-09-20 |
Family
ID=67933823
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821861048.1U Expired - Fee Related CN209418616U (en) | 2018-11-12 | 2018-11-12 | A kind of explosion rupture disk for lithium battery cover plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209418616U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112421174A (en) * | 2020-11-17 | 2021-02-26 | 苏州炬鸿通讯电脑科技有限公司 | Safety explosion-proof device for lithium battery cover plate |
| WO2023000202A1 (en) * | 2021-07-21 | 2023-01-26 | 宁德时代新能源科技股份有限公司 | Battery cell and manufacturing method and manufacturing system therefor, battery, and electrical device |
-
2018
- 2018-11-12 CN CN201821861048.1U patent/CN209418616U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112421174A (en) * | 2020-11-17 | 2021-02-26 | 苏州炬鸿通讯电脑科技有限公司 | Safety explosion-proof device for lithium battery cover plate |
| WO2023000202A1 (en) * | 2021-07-21 | 2023-01-26 | 宁德时代新能源科技股份有限公司 | Battery cell and manufacturing method and manufacturing system therefor, battery, and electrical device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190920 Termination date: 20211112 |