CN210692594U - Lithium battery cap - Google Patents
Lithium battery cap Download PDFInfo
- Publication number
- CN210692594U CN210692594U CN201920691181.5U CN201920691181U CN210692594U CN 210692594 U CN210692594 U CN 210692594U CN 201920691181 U CN201920691181 U CN 201920691181U CN 210692594 U CN210692594 U CN 210692594U
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- Prior art keywords
- explosion
- top cover
- proof
- lithium battery
- sealing ring
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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 lithium battery cap, which comprises a top cap, a sealing ring and a sealing ring arranged at the outer end of the top cap; a top cover, a PTC sheet, an explosion-proof membrane and a welding sheet are respectively arranged in the sealing ring from top to bottom; the welding sheet is fixedly provided with an air vent A; the end part of the top cover is provided with a heat dissipation hole; the top cover and the bottom end are provided with a B vent hole, and one side of the top cover is provided with a buzzer; the utility model discloses a lithium cell block, explosion-proof circle correspond the A air vent, and the electrolyte passes the air vent and directly strikes explosion-proof circle during lithium cell pressure release, and the impact strength is strong to no pressure accumulation process has effectively reduced the potential safety hazard of lithium cell.
Description
Technical Field
The utility model relates to a lithium battery cap; belongs to the technical field of lithium batteries.
Background
Nowadays, lithium cell block is lithium cell key part, locate the lithium cell anodal, directly meet with utmost point ear, prior art's lithium cell structure includes the top cap, the sealing washer, the PTC piece, explosion-proof diaphragm, the welding piece etc, wherein explosion-proof diaphragm locates on the welding piece, when lithium cell internal pressure is too high, the inside electrolyte of lithium cell upwards passes the air vent on the welding piece and breaks through explosion-proof diaphragm and comes the pressure release, the explosion-proof circle on the explosion-proof diaphragm can't the direct impact behind the electrolyte passing air vent, the impact force is little, need more time to strut explosion-proof circle with improvement explosion-proof diaphragm below pressure, potential safety hazards such as explosion appear easily in this pressure accumulation process.
Disclosure of Invention
Technical problem to be solved
In order to solve the problem, the utility model provides a lithium battery cover cap.
(II) technical scheme
The utility model discloses a lithium battery cap, which comprises a top cover, a sealing ring and a sealing ring arranged at the outer end of the top cover; a top cover, a PTC sheet, an explosion-proof membrane and a welding sheet are respectively arranged in the sealing ring from top to bottom; the welding sheet is fixedly provided with an air vent A; the end part of the top cover is provided with a heat dissipation hole; a B air vent is arranged at the top cover and the bottom end, and a buzzer is arranged at one side of the top cover.
Furthermore, the explosion-proof membrane is provided with a bottom plate and a side plate, and a plurality of explosion-proof rings are arranged on the end face of the explosion-proof membrane.
Furthermore, the explosion-proof circle is equipped with four altogether, and all corresponds the A air vent that sets up on the welding piece.
Furthermore, the heat dissipation holes are honeycomb heat dissipation holes, and two rows are arranged.
Further, the vent hole A is coincided with the central axis of the explosion-proof ring.
Further, the B vent hole and the A vent hole are not overlapped in the vertical direction.
(III) advantageous effects
Compared with the prior art, the utility model, it has following beneficial effect: the utility model discloses a lithium cell block, explosion-proof circle correspond the A air vent, and the electrolyte passes the air vent and directly strikes explosion-proof circle during lithium cell pressure release, and the impact strength is strong to no pressure accumulation process has effectively reduced the potential safety hazard of lithium cell.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic structural view of the explosion-proof membrane of the present invention.
1-a top cover; 2-heat dissipation holes; 3-B vent holes; 4-sealing ring; 5-a buzzer; 6-PTC sheet; 7-an explosion-proof membrane; 8-welding a sheet; 9-A vent hole; 71-a base plate; 72-explosion-proof ring; 73-side panel.
Detailed Description
The lithium battery cap shown in the attached drawing comprises a top cover 1, a sealing ring 4 and the sealing ring 4 arranged at the outer end of the top cover 1; a top cover 1, a PTC sheet 6, an explosion-proof membrane 7 and a welding sheet 8 are respectively arranged in the sealing ring 4 from top to bottom; the welding sheet 8 is fixedly provided with an air vent hole A9; the end part of the top cover 1 is provided with a heat dissipation hole 2; the top cover 1 and the bottom end are provided with a B vent hole 3, and one side of the top cover is provided with a buzzer 5;
the anti-explosion diaphragm 7 is provided with a bottom plate 71 and a side plate 73, and the end face of the anti-explosion diaphragm 7 is provided with a plurality of anti-explosion rings 72; the number of the explosion-proof rings 72 is four, and the four explosion-proof rings are all correspondingly arranged on the air holes A9 on the welding sheet 8; the heat dissipation holes 2 are honeycomb heat dissipation holes and are provided with two rows in total; the central axis of the vent hole A9 is superposed with the central axis of the explosion-proof ring 72; the B vent hole 3 and the A vent hole 9 are not overlapped in the vertical direction.
The utility model discloses a lithium cell block, explosion-proof circle correspond the A air vent, and the electrolyte passes the air vent and directly strikes explosion-proof circle during lithium cell pressure release, and the impact strength is strong to no pressure accumulation process has effectively reduced the potential safety hazard of lithium cell.
The above-described embodiments are merely illustrative of the preferred embodiments of the present invention and are not intended to limit the spirit and scope of the present invention. Without departing from the design concept of the present invention, various modifications and improvements made by the technical solution of the present invention by those skilled in the art should fall into the protection scope of the present invention, and the technical contents claimed by the present invention have been fully recorded in the claims.
Claims (6)
1. The utility model provides a lithium cell block which characterized in that: comprises a top cover (1), a sealing ring (4) and the sealing ring (4) arranged at the outer end of the top cover (1); a top cover (1), a PTC sheet (6), an explosion-proof membrane (7) and a welding sheet (8) are respectively arranged in the sealing ring (4) from top to bottom; the welding sheet (8) is fixedly provided with an A vent hole (9); the end part of the top cover (1) is provided with a heat dissipation hole (2); a B air vent (3) is installed on the top cover (1) and the bottom end, and a buzzer (5) is installed on one side of the top cover.
2. A lithium battery cap as recited in claim 1, wherein: the anti-explosion diaphragm (7) is provided with a bottom plate (71) and a side plate (73), and the end face of the anti-explosion diaphragm (7) is provided with a plurality of anti-explosion rings (72).
3. A lithium battery cap as recited in claim 2, wherein: the explosion-proof rings (72) are four in number and are all correspondingly arranged on the air holes (9) A on the welding sheets (8).
4. A lithium battery cap as recited in claim 1, wherein: the heat dissipation holes (2) are honeycomb heat dissipation holes, and two rows are arranged.
5. A lithium battery cap as recited in claim 1, wherein: the central axis of the A vent hole (9) coincides with that of the explosion-proof ring (72).
6. A lithium battery cap as recited in claim 1, wherein: the vent hole (3) B and the vent hole (9) A are not overlapped in the vertical direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920691181.5U CN210692594U (en) | 2019-05-15 | 2019-05-15 | Lithium battery cap |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920691181.5U CN210692594U (en) | 2019-05-15 | 2019-05-15 | Lithium battery cap |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210692594U true CN210692594U (en) | 2020-06-05 |
Family
ID=70886866
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920691181.5U Active CN210692594U (en) | 2019-05-15 | 2019-05-15 | Lithium battery cap |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210692594U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112563680A (en) * | 2020-11-13 | 2021-03-26 | 安克创新科技股份有限公司 | Battery, packaging method thereof and electronic device |
-
2019
- 2019-05-15 CN CN201920691181.5U patent/CN210692594U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112563680A (en) * | 2020-11-13 | 2021-03-26 | 安克创新科技股份有限公司 | Battery, packaging method thereof and electronic device |
| CN112563680B (en) * | 2020-11-13 | 2023-06-23 | 安克创新科技股份有限公司 | Battery, packaging method thereof and electronic device |
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