CN205621773U - Battery or electric capacity upper cover with pressure of releasing effect - Google Patents
Battery or electric capacity upper cover with pressure of releasing effect Download PDFInfo
- Publication number
- CN205621773U CN205621773U CN201620306241.3U CN201620306241U CN205621773U CN 205621773 U CN205621773 U CN 205621773U CN 201620306241 U CN201620306241 U CN 201620306241U CN 205621773 U CN205621773 U CN 205621773U
- Authority
- CN
- China
- Prior art keywords
- lid
- sealing
- recess
- battery
- upper cover
- 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
Links
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
Abstract
The utility model provides a battery or electric capacity upper cover with pressure of releasing effect, includes the circular shape lid, is provided with the centre bore and annotates the liquid hole on the lid, have annular recess A on a side of lid, the lid part of recess A periphery forms bellied wing, be provided with annular recess B in the another side of lid, the lid part in week forms bellied sealing -in platform in the recess B, is provided with 2 or 3 escape orifices in recess B, every escape orifice interior glass sealing, the center part that the centre bore set up at the sealing -in platform. The beneficial effects of the utility model are that: when the punching press goes out the pressure release recess, extrude the sealing -in platform that accords with the thickness standard, guaranteeing to produce property in can, reduced the whole thickness and the weight of lid. Set up the escape orifice in pressure release recess B, as the pressure release export, play safety protection's effect. Wing's high midplane than the lid exceeds 0 - 0.3mm, and finish is better, the space of having given inside battery surplus.
Description
Technical field
This utility model relates to lithium battery or capacitance technology field, has particularly for the one of lithium battery or electric capacity and releases
The battery of pressure effect or electric capacity upper cover.
Background technology
Lithium battery is that country promotes the high-tech product produced, and validity period was up to 10 years as long as, with its high-energy-density, open circuit electricity
Pressure height, stable operating voltage, length in service life, self-discharge rate are low, store phase length, the fine quality such as nuisanceless, extensively answer
For each industry and civil area.
Electric capacity is components and parts important in electronic circuit, plays an important role in circuit, and it serves as rectification in the electronic device
The smothing filtering of device, power supply and decoupling, the bypass of AC signal, the AC coupled energy storage etc. of AC-DC Circuit, be widely used in
The fields such as communication, automotive electronics, medical electronics, new forms of energy and military project.
Column type lithium cell or electric capacity develop into have up to a hundred specification kinds now, and column type lithium cell or electric capacity external diameter typically have
Φ 14, Φ 15, Φ 17, Φ 18, Φ 26, Φ 34 etc..The shell of lithium battery or electric capacity includes outside outer casing upper cover and tubular
Shell, during installation, is pressed into outer casing upper cover in cylindrical case, welds together at wing position argon arc (or laser).
See that Fig. 4 is lithium battery of the prior art or the structural representation of capacitance shell upper cover.This outer casing upper cover is in order to increase envelope
The thickness connect, it is necessary to increase the integral thickness of upper cover.Not only increase weight of upper cover but also take inside battery space, simultaneously
Point without pressure release.
Summary of the invention
The purpose of this utility model is to provide a kind of lithium battery with pressure effect of releasing or electric capacity upper cover, uses presser
Skill, processes groove on lid, squeezes out wing and the sealing-in boss of projection simultaneously, is ensureing upper cover integral thickness and weight
In the case of constant, process sealing-in thickness and the wing's height meeting design standard.In pressure release groove, it is provided with use simultaneously
Glass-sealed escape orifice, when lithium battery or electric capacity internal pressure reach specified value, pressure release groove and escape orifice are as letting out
Extrude mouth, play the effect of security protection.
For achieving the above object, this utility model realizes by the following technical solutions:
A kind of battery with pressure effect of releasing or electric capacity upper cover, including circular lid, be provided with centre bore on lid
And liquid injection hole；The cap portion having groove A, the groove A periphery of annular on the one side of lid forms the wing of projection；
Be provided with the groove B of annular in the another side of lid, the cap portion of groove B inner circumferential forms the sealing-in platform of projection, recessed
It is provided with escape orifice in groove B, in escape orifice, uses glass sealing；Centre bore is arranged on the centre of sealing-in platform.
Described wing is not less than the central plane of lid, and its height difference H is less than or equal to 0.3mm more than 0mm.
The quantity of described escape orifice is 2 or 3.
Compared with prior art, the beneficial effects of the utility model are:
1) while stamping out pressure release groove, squeeze out the sealing-in platform meeting thickness calibration, not only add one for upper cover
Circle pressure release relieving ring, and improve sealing-in thickness, add sealing-in area, while ensure that properties of product, reduce
The integral thickness of lid and weight.
2) arranging escape orifice in pressure release groove B, when lithium battery or electric capacity internal pressure reach specified value, pressure release is recessed
Groove B and escape orifice, as pressure relief vent, play the effect of security protection.
3) central plane of the aspect ratio lid of wing exceeds 0 0.3mm, it is ensured that during sintering not with graphite adhesion, table
Face fineness is more preferable, returns internal battery surplus space simultaneously.
Accompanying drawing explanation
Fig. 1 is a kind of lithium battery with pressure effect of releasing of this utility model or the structural representation of electric capacity upper cover；
Fig. 2 is perspective view of the present utility model (viewed from above)；
Fig. 3 is perspective view of the present utility model (seeing from below)；
Fig. 4 is the structural representation of li battery shell upper cover in prior art；
In figure: 1-groove A, 2-groove B, 3-wing, 4-liquid injection hole, 5-centre bore, 6-lid, 7-sealing-in platform, 8-let out
Discharge hole, 9-glass.
Detailed description of the invention
Below in conjunction with Figure of description, this utility model is described in detail, it should be noted that enforcement of the present utility model
It is not limited to following embodiment.
As shown in Figure 1-Figure 3, a kind of battery with pressure effect of releasing or electric capacity upper cover, including circular lid 6,
Centre bore 5 and liquid injection hole 4 it is provided with on lid 6；The one side of lid 6 has the groove A1 of annular, outside groove A1
The cap portion in week forms the wing 3 of projection；The groove B2 of annular it is provided with, in groove B2 in the another side of lid 6
The cap portion in week forms the sealing-in platform 7 of projection, is provided with escape orifice 8, by glass 9 envelope in escape orifice 8 in groove B2
Connect；Centre bore 5 is arranged on the centre of sealing-in platform 7.
Described wing 3 is not less than the central plane of lid 6, and its difference in height is less than or equal to 0.3mm more than 0mm.See Fig. 1
Middle H is the difference in height of wing 3 and lid central plane: 0 ＜ H≤0.3mm.
The quantity of described escape orifice 8 is 2 or 3.
The position of liquid injection hole 4 is arranged in groove B2.
Centre bore 5 is for sealing-in negative pole: in battery or the centrally disposed hole of electric capacity negative pole, by insulating glass by negative pole
Fix and ensure that both positive and negative polarity insulate.
This utility model uses Sheet Metal Forming Technology to process, by the cap portion of groove B2 inner circumferential while stamped recess B2
Squeeze out the sealing-in platform 7 of projection；The thickness of groove B2 lid thickness the most around is thin, has 2 or 3 in groove B2
Escape orifice 8, with glass 9 sealing-in in each escape orifice 8, when the pressure within battery or electric capacity exceedes setup pressure value,
Escape orifice 8 at groove B2 can be first damaged, and pressure of releasing, and prevents battery explosion, plays the outside plant of battery
The effect of protection.
Owing to sealing-in platform 7 is formed by stamped recess B2, therefore the thickness of slab being increased without housing 6 i.e. can reach raising
Sealing-in thickness, the purpose of increase sealing-in area.
Groove A1 is also stamped to form, and the purpose of stamped recess A1 is to squeeze out the wing higher than lid 6 central plane
3 structures.Wing 3 is the welding position when battery or electric capacity upper cover are connected with tubular shell, due to 0 ＜ H≤0.3mm,
Therefore when can ensure that sintering not with graphite adhesion, surface smoothness is more preferable, returns the battery surplus space of inside simultaneously.
Claims (3)
1. there is battery or the electric capacity upper cover of pressure effect of releasing, including circular lid, during lid is provided with
Central hole and liquid injection hole；It is characterized in that on the one side of lid, have the cap portion of groove A, the groove A periphery of annular
Form protruding wing；Be provided with the groove B of annular in the another side of lid, the cap portion of groove B inner circumferential is formed convex
The sealing-in platform risen, is provided with escape orifice in groove B, uses glass sealing in escape orifice；Centre bore is arranged in sealing-in platform
Heart position.
A kind of battery with pressure effect of releasing the most according to claim 1 or electric capacity upper cover, it is characterised in that
Described wing is not less than the central plane of lid, and its height difference H is less than or equal to 0.3mm more than 0mm.
A kind of battery with pressure effect of releasing the most according to claim 1 or electric capacity upper cover, it is characterised in that
The quantity of described escape orifice is 2 or 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620306241.3U CN205621773U (en) | 2016-04-13 | 2016-04-13 | Battery or electric capacity upper cover with pressure of releasing effect |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620306241.3U CN205621773U (en) | 2016-04-13 | 2016-04-13 | Battery or electric capacity upper cover with pressure of releasing effect |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205621773U true CN205621773U (en) | 2016-10-05 |
Family
ID=57029416
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620306241.3U Expired - Fee Related CN205621773U (en) | 2016-04-13 | 2016-04-13 | Battery or electric capacity upper cover with pressure of releasing effect |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205621773U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109301127A (en) * | 2018-11-08 | 2019-02-01 | 浙江天能能源科技股份有限公司 | A kind of li battery shell releasing pressure automatically structure |
| WO2023240551A1 (en) * | 2022-06-16 | 2023-12-21 | 宁德时代新能源科技股份有限公司 | End cap assembly, battery cell, battery, and electric device |
-
2016
- 2016-04-13 CN CN201620306241.3U patent/CN205621773U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109301127A (en) * | 2018-11-08 | 2019-02-01 | 浙江天能能源科技股份有限公司 | A kind of li battery shell releasing pressure automatically structure |
| WO2023240551A1 (en) * | 2022-06-16 | 2023-12-21 | 宁德时代新能源科技股份有限公司 | End cap assembly, battery cell, battery, and electric device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161005 Termination date: 20170413 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |