CN208352408U - A kind of circular safety pressure release button cell - Google Patents
A kind of circular safety pressure release button cell Download PDFInfo
- Publication number
- CN208352408U CN208352408U CN201820464158.8U CN201820464158U CN208352408U CN 208352408 U CN208352408 U CN 208352408U CN 201820464158 U CN201820464158 U CN 201820464158U CN 208352408 U CN208352408 U CN 208352408U
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- CN
- China
- Prior art keywords
- upper housing
- lower case
- pressure release
- hole
- dead ring
- 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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- 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 relates to a kind of circular safety pressure release button cells, it is characterized by comprising dead ring, upper housing and lower cases, the upper housing and lower case boring, upper housing upper surface and lower case lower end surface are battery the two poles of the earth, the dead ring is fixed around upper casing body side surface, the upper casing body side surface is evenly distributed with several relief holes, the relief hole is through-hole, through upper casing body side surface and dead ring, in the upper housing insertion lower case, relief hole is completely covered in lower casing body side surface, the advantage is that, the lossless former inner space of this processing, battery capacity will not lose；According to the hole location size of setting, hole location high and low position and hole count, the range of pressure when can set pressure release；Battery appearance is not influenced after assembling.
Description
Technical field
The utility model relates to compact battery safety relief field more particularly to a kind of circular safety pressure release button cells.
Background technique
For button cell, shell tool is that (such as: stainless steel, aluminium, aluminium alloy ... etc.) is made with metal, and shell tool has one
Fixed thickness, shell tool are a big, small matching piece, and centre has plastic injection forming part to form ambroin ring, when production with
Mechanical force riveted mode carrys out closed shell (punching press or roll-in processing) and forms battery body, such available splendid airtightness
Energy.
Also because airtight performance is good, when generating pressure because of high temperature inside button cell, pressure is tightly wrapped in button
In battery case tool, temperature and pressure constantly rises at this time, and the mechanical force adaptation of shell tool has its limit, when pressure is greater than closely sealed
When the limit, pressure breaks through shell tool sealing ability, and forms the phenomenon that popping.
Utility model content
The purpose of this utility model is to provide the circular safety pressure release button cells that one kind is capable of safety relief.
To achieve the above object, the circular safety pressure release button cell of the utility model, it is characterised in that: including insulation
Ring, upper housing and lower case, the upper housing and lower case boring, upper housing upper surface and lower case lower end surface are battery
The two poles of the earth, the dead ring are fixed around upper casing body side surface, and the upper casing body side surface is evenly distributed with several relief holes, and the relief hole is logical
Upper casing body side surface and dead ring are run through in hole, and the upper housing is inserted into lower case, and relief hole is completely covered in lower casing body side surface.
Further, the upper housing and lower case are cylindrical body, and upper housing diameter is slightly less than lower case diameter.
Further, after the upper housing and lower case closing lid, lower case is processed necking by riveted and is fixed.
Preferably, the relief hole is 1 ~ 10, and pressure release bore dia is 0.1 ~ 1.0mm, and the relief hole is with round equal part
After hole count, it is distributed on upper casing body side surface.
Preferably, the upper housing and lower case are metal material, and dead ring is plastic material.
The present apparatus mainly has the advantage that
One, the lossless former inner space of this processing, battery capacity will not lose；Two, high according to the hole location size of setting, hole location
Lower position and hole count, the range of pressure when can set pressure release；Three, battery appearance is not influenced after assembling, four, make battery in height
Temperature under high pressure conditions, and starts decompression function, releases stress and temperature, and then improves safety.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
Fig. 2 is the utility model installation site structural schematic diagram.
Fig. 3 is the diagrammatic cross-section of Fig. 2.
Fig. 4 is that the pressure relief mechanism of the utility model illustrates schematic diagram.
In figure: 1 is upper housing, and 2 be lower case, and 21 be riveted necking, and 3 be dead ring.
Specific embodiment
As shown in Figure 1, the circular safety pressure release button cell of the utility model, mainly by dead ring 3, upper housing 1 and under
Shell 2 forms, and wherein upper housing 1 and lower case 2 are the cylinder of boring, and the diameter of upper housing 1 is slightly less than lower case 2,
Upper housing 1 and lower case 2 are metal material, and dead ring 3 is plastic material.
The upper surface of upper housing 1 and the lower end surface of lower case 2 are the two poles of the earth of battery.Dead ring is around the side of upper housing 1
It is fixed.Meanwhile the side of upper housing 1 is evenly distributed with several relief holes 4, relief hole 4 is through-hole, through-hole through upper housing 1 side and
Dead ring 3.Relief hole 4 is 1 ~ 10, and 4 diameter of relief hole is 0.1 ~ 1.0mm, and relief hole 4 after circle etc. point hole count to be distributed in
On 1 side of upper housing.
If the lower end of Fig. 2, Fig. 3, upper housing 1 are inserted into lower case 2, relief hole 4 is completely covered in lower case 2.1 He of upper housing
After 2 closing lid of lower case, lower case 2 is processed necking 21 by riveted and is fixed.The dead ring 3 for being fixed on 1 side of upper housing makes device
It is highly airtight, and will not influence the appearance and size of battery.
In actual use, according to the pressure limit of pressure release demand, the hole location for adjusting relief hole 4 is big for the utility model
Small, hole location high and low position and hole count.And then adjusted design goes out different thermal stress ranges, and reach definition pressure relief capability.
It is different according to relief hole 4, the battery being completed is processed, after coming into operation, inside battery generates pressure because heated,
And after temperature rises to definite value, since dead ring 3 is plastic material, heat deformations, forming half colloidal state is to have slight plasticity
(intensity decline), and have and rise with inside battery thermal stress, internal pressure raises the rising of upper housing 1 at this time, makes relief hole 4
Expose externally, carries out pressure release, as shown in Figure 4.Make battery under high temperature, high pressure conditions, and start decompression function, release stress and
Temperature, and then improve safety.
Meanwhile after the internal pressure of button cell obtains pressure release, battery case does not pop, still remain whole after pressure release in,
Outer pairing form.
The safety relief of the utility model acts on, even if can guarantee that battery has in 180 DEG C or more of high temperature safe test
There is good decompression function, greatly improves the safety of entire battery.
Above-described specific embodiment has carried out further the purpose of the present invention, technical scheme and beneficial effects
It is described in detail, it should be understood that the foregoing is merely a specific embodiment of the invention, the guarantor that is not intended to limit the present invention
Range is protected, all within the spirits and principles of the present invention, any modification, equivalent substitution, improvement and etc. done should all be contained in this hair
Within bright protection scope.
Claims (5)
1. a kind of circular safety pressure release button cell, it is characterised in that: including dead ring (3), upper housing (1) and lower case (2),
The upper housing (1) and lower case (2) boring, upper housing (1) upper surface and lower case (2) lower end surface are battery the two poles of the earth,
The dead ring (3) is fixed around upper housing (1) side, and upper housing (1) side is evenly distributed with several relief holes, the relief hole
For through-hole, run through upper housing (1) side and dead ring (3), upper housing (1) insertion lower case (2) is interior, lower case (2) side
Relief hole is completely covered in face.
2. circular safety pressure release button cell according to claim 1, it is characterised in that: the upper housing (1) and lower casing
Body (2) is cylindrical body, and upper housing (1) diameter is slightly less than lower case (2) diameter.
3. circular safety pressure release button cell according to claim 2, it is characterised in that: the upper housing (1) and lower casing
After body (2) closing lid, lower case (2) 2 is fixed by riveted processing necking (21).
4. circular safety pressure release button cell according to claim 1, it is characterised in that: the relief hole is 1 ~ 10,
Pressure release bore dia is 0.1 ~ 1.0mm, after the relief hole divides hole count with circle etc., is distributed on upper housing (1) side.
5. circular safety pressure release button cell according to claim 1, it is characterised in that: the upper housing (1) and lower casing
Body (2) is metal material, and dead ring (3) is plastic material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820464158.8U CN208352408U (en) | 2018-03-30 | 2018-03-30 | A kind of circular safety pressure release button cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820464158.8U CN208352408U (en) | 2018-03-30 | 2018-03-30 | A kind of circular safety pressure release button cell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208352408U true CN208352408U (en) | 2019-01-08 |
Family
ID=64885694
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820464158.8U Active CN208352408U (en) | 2018-03-30 | 2018-03-30 | A kind of circular safety pressure release button cell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208352408U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111082158A (en) * | 2020-01-19 | 2020-04-28 | 深圳市言九电子科技有限公司 | Quick-charging button battery and manufacturing method thereof |
| CN112310553A (en) * | 2020-11-02 | 2021-02-02 | 深圳市合壹新能技术有限公司 | Battery shell mounting structure and button cell |
| WO2022000556A1 (en) * | 2020-06-30 | 2022-01-06 | 瑞声声学科技(深圳)有限公司 | Button battery |
| WO2022000545A1 (en) * | 2020-06-30 | 2022-01-06 | 瑞声声学科技(深圳)有限公司 | Button cell |
-
2018
- 2018-03-30 CN CN201820464158.8U patent/CN208352408U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111082158A (en) * | 2020-01-19 | 2020-04-28 | 深圳市言九电子科技有限公司 | Quick-charging button battery and manufacturing method thereof |
| CN111082158B (en) * | 2020-01-19 | 2023-03-03 | 深圳市言九电子科技有限公司 | Quick-charging button battery and manufacturing method thereof |
| WO2022000556A1 (en) * | 2020-06-30 | 2022-01-06 | 瑞声声学科技(深圳)有限公司 | Button battery |
| WO2022000545A1 (en) * | 2020-06-30 | 2022-01-06 | 瑞声声学科技(深圳)有限公司 | Button cell |
| CN112310553A (en) * | 2020-11-02 | 2021-02-02 | 深圳市合壹新能技术有限公司 | Battery shell mounting structure and button cell |
| CN112310553B (en) * | 2020-11-02 | 2022-09-06 | 深圳市合壹新能技术有限公司 | Battery shell mounting structure and button cell |
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