CN217158526U - Ventilative structure, apron subassembly and battery - Google Patents
Ventilative structure, apron subassembly and battery Download PDFInfo
- Publication number
- CN217158526U CN217158526U CN202220488370.4U CN202220488370U CN217158526U CN 217158526 U CN217158526 U CN 217158526U CN 202220488370 U CN202220488370 U CN 202220488370U CN 217158526 U CN217158526 U CN 217158526U
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- Prior art keywords
- valve
- groove
- explosion
- sheet
- protection
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- 238000009423 ventilation Methods 0.000 claims abstract description 11
- 238000007789 sealing Methods 0.000 claims abstract description 8
- 239000011521 glass Substances 0.000 claims description 5
- 230000001681 protective effect Effects 0.000 claims description 5
- 238000012216 screening Methods 0.000 claims description 5
- 238000004880 explosion Methods 0.000 claims description 4
- 230000008719 thickening Effects 0.000 claims description 4
- 238000010276 construction Methods 0.000 claims 1
- 239000003792 electrolyte Substances 0.000 abstract description 16
- 210000001503 joint Anatomy 0.000 description 11
- 230000005389 magnetism Effects 0.000 description 9
- 238000002347 injection Methods 0.000 description 4
- 239000007924 injection Substances 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000010030 laminating Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Images
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
Landscapes
- Gas Exhaust Devices For Batteries (AREA)
Abstract
The utility model relates to the technical field of batteries, in particular to a ventilation structure, a cover plate assembly and a battery, wherein the ventilation structure comprises a protection plate body which is used for protecting an explosion-proof valve, and a through groove is arranged at the edge of the protection plate body; the valve sheet is connected with the protection sheet body and positioned at the through groove, and the valve sheet can rotate relative to the protection sheet body; the valve flap is configured to: when the explosion-proof valve does not exhaust, the valve sheet is in sealing connection with the protection sheet body, and when the explosion-proof valve exhausts, the valve sheet rotates to be opened relative to the protection sheet body. The utility model discloses when can guarantee that explosion-proof valve is ventilative, prevent that electrolyte from causing the corruption to explosion-proof valve.
Description
Technical Field
The utility model relates to a battery technology field especially relates to a ventilative structure, apron subassembly and battery.
Background
In order to increase the liquid injection speed and thus increase the productivity in the liquid injection process of the battery production process, electrolyte is usually injected into the battery core by adopting a pressurization mode. When the liquid injection nozzle is removed, electrolyte which is not absorbed in the battery core can be extruded by residual pressure and flows to a protective sheet for protecting the explosion-proof valve. In order to ensure the balance of air pressure inside and outside the battery core, the existing protective sheet is provided with air holes. However, due to the air holes in the protection sheet, the extruded electrolyte can permeate into the explosion-proof valve through the air holes, so that the explosion-proof valve is corroded, the valve opening pressure of the explosion-proof valve is influenced, and potential safety hazards exist.
Therefore, a ventilation structure, a cap plate assembly and a battery are required to solve the above technical problems.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a ventilative structure, apron subassembly and battery can guarantee that the explosion-proof valve is ventilative when, prevent that electrolyte from causing the corruption to the explosion-proof valve.
To achieve the purpose, the utility model adopts the following technical proposal:
a breathable structure, comprising:
the anti-explosion valve protection plate comprises a protection plate body, wherein the protection plate body is used for protecting the anti-explosion valve, and a through groove is formed in the edge of the protection plate body;
the valve sheet is connected with the protection sheet body and positioned at the through groove, and the valve sheet can rotate relative to the protection sheet body;
the valve flap is configured to: when the explosion-proof valve does not exhaust, the valve sheet is in sealing connection with the protection sheet body, and when the explosion-proof valve exhausts, the valve sheet rotates to be opened relative to the protection sheet body.
Furthermore, the butt groove has been seted up on the screening glass body, the butt trench in the tip of running through the groove, be provided with the butt portion on the valve piece, the butt portion with the butt groove corresponds, works as the valve piece with screening glass body sealing connection, the butt portion with the tank bottom surface laminating in butt groove.
Furthermore, be provided with first magnetism on the tank bottom surface in butt joint groove and inhale the piece, butt joint portion orientation one side in butt joint groove be provided with first magnetism inhale piece matched with second magnetism inhale the piece, first magnetism inhale the piece with the polarity of second magnetism inhale the piece is opposite.
Furthermore, a first mounting groove is formed in the bottom surface of the abutting groove, and the first magnetic attraction piece is embedded in the first mounting groove.
Furthermore, a second mounting groove is formed in one side, facing the abutting groove, of the abutting portion, and the second magnetic piece is embedded in the second mounting groove.
Further, the abutting part and the valve sheet are of an integrated structure.
Further, a thickening layer is arranged on the protection sheet body along the circumferential direction of the through groove.
Further, the protection sheet body and the valve sheet are of an integrated structure.
The cover plate assembly comprises a cover plate body, an explosion-proof valve and the ventilating structure, wherein the cover plate body is provided with a mounting hole, the explosion-proof valve is mounted in the mounting hole, and the ventilating structure is attached to the explosion-proof valve.
A battery comprising a cover plate assembly as described above.
The utility model has the advantages that:
the utility model provides a ventilation structure, which comprises a protection sheet body, wherein the protection sheet body is arranged on an explosion-proof valve and used for protecting the explosion-proof valve, a through groove is arranged on the protection sheet body, a valve sheet is arranged at the through groove, and the valve sheet is hermetically connected with the protection sheet body when the explosion-proof valve does not exhaust, so that electrolyte can be prevented from entering the explosion-proof valve when the electrolyte overflows; when the explosion-proof valve exhausts, the valve sheet rotates relative to the protection sheet body to be opened, so that exhaust is realized, and the air pressure inside and outside the battery cell is kept balanced.
The utility model provides a cover plate assembly is provided with as above on explosion-proof valve ventilative structure, when can guaranteeing that explosion-proof valve is ventilative, prevent that electrolyte from causing the corruption to explosion-proof valve.
The utility model provides a battery, include as above apron subassembly, when can guaranteeing that explosion-proof valve is ventilative, prevent that electrolyte from causing the corruption to explosion-proof valve.
Drawings
Fig. 1 is a schematic view of a ventilation structure of the present invention;
FIG. 2 is a view at A-A in FIG. 1;
fig. 3 is a partially enlarged view at B in fig. 2.
In the figure:
1. a protection sheet body; 11. a first magnetic attraction member; 2. a valve plate; 21. an abutting portion; 211. a second magnetic attraction member; 3. a cover plate body; 4. an explosion-proof valve.
Detailed Description
The technical solution of the present invention will be further explained with reference to the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some but not all of the elements related to the present invention are shown in the drawings.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection or a removable connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
In the liquid injection process of battery production process, in order to prevent that the explosion-proof valve from causing the corruption to the explosion-proof valve when guaranteeing that the explosion-proof valve is ventilative, as shown in fig. 1-3, the utility model provides a ventilative structure. The ventilation structure comprises a protection plate body 1 and a valve plate 2.
The protection plate body 1 is used for protecting the explosion-proof valve 4, and a through groove is formed in the edge of the protection plate body 1; the valve sheet 2 is connected with the protection sheet body 1 and is positioned at the through groove, and the valve sheet 2 can rotate relative to the protection sheet body 1; the valve sheet 2 is configured to: when the explosion-proof valve 4 does not exhaust, the valve sheet 2 is hermetically connected with the protection sheet body 1, and when the explosion-proof valve 4 exhausts, the valve sheet 2 rotates and opens relative to the protection sheet body 1.
When the explosion-proof valve 4 is not exhausted, the valve sheet 2 is hermetically connected with the protection sheet body 1, so that when the electrolyte overflows, the electrolyte can be prevented from entering the explosion-proof valve 4; when the explosion-proof valve 4 exhausts, the valve sheet 2 rotates relative to the protection sheet body 1 to be opened, so that exhaust is realized, and the air pressure inside and outside the battery cell is kept balanced.
Furthermore, the protection plate body 1 is provided with a butt joint groove, the butt joint groove is positioned at the end part of the through groove, the valve sheet 2 is provided with a butt joint part 21, the butt joint part 21 corresponds to the butt joint groove, and when the valve sheet 2 is in sealing connection with the protection plate body 1, the butt joint part 21 is attached to the groove bottom surface of the butt joint groove. Through the laminating of butt portion 21 and the tank bottom surface of butt groove, can increase sealed area of contact to further promote the sealing performance between valve plate 2 and the protection sheet body 1, when explosion-proof valve 4 does not exhaust, can effectively prevent that electrolyte from entering into explosion-proof valve 4.
Furthermore, a first magnetic attraction piece 11 is arranged on the bottom surface of the abutting groove, a second magnetic attraction piece 211 matched with the first magnetic attraction piece 11 is arranged on one side, facing the abutting groove, of the abutting portion 21, and the polarities of the first magnetic attraction piece 11 and the second magnetic attraction piece 211 are opposite. Through setting up first magnetism piece 11 and the second magnetism piece 211 of inhaling, can guarantee butt portion 21 and screening glass body 1 sealing connection's intensity.
Further, first mounting groove has been seted up to the tank bottom surface in butt joint groove, and first magnetism is inhaled piece 11 and is inlayed and establish in first mounting groove. Through setting up first mounting groove, the first installation of inhaling piece 11 of being convenient for is guaranteed first magnetism moreover and is inhaled piece 11 and the intensity of protecting the slice body 1 and being connected.
Further, a second mounting groove is formed in one side, facing the abutting groove, of the abutting portion 21, and the second magnetic attraction piece 211 is embedded in the second mounting groove. Through setting up the second mounting groove, the second of being convenient for is inhaled the installation of piece 211 magnetically, guarantees the second moreover and inhales the intensity that piece 211 and butt portion 21 are connected magnetically. After the first magnetic attraction piece 11 and the second magnetic attraction piece 211 are attracted, a certain magnetic attraction force exists between the first magnetic attraction piece 11 and the second magnetic attraction piece 211, so that the valve plate 2 can rotate and open relative to the protection plate body 1 after the exhaust pressure reaches a certain value. By the arrangement, the sealing failure between the valve sheet 2 and the protection sheet body 1 caused by the fact that the valve sheet 2 rotates to open when slight exhaust is performed can be avoided.
Further, the abutting portion 21 and the valve plate 2 are integrally formed. Through the arrangement, the installation gap between the abutting part 21 and the protection plate can be avoided while the manufacturing is convenient, and the electrolyte leakage phenomenon between the abutting part 21 and the protection plate is caused.
Further, the protection sheet body 1 and the valve sheet 2 are of an integrated structure. Through the arrangement, a hinge is not required to be installed between the protection sheet body 1 and the valve sheet 2, so that a gap between the protection sheet body 1 and the valve sheet 2 can be avoided, and electrolyte flows into the gap to corrode the explosion-proof valve 4.
Further, a thickening layer is provided on the protective sheet body 1 along the circumferential direction of the through groove. By providing the thickening layer, the strength of the protection sheet body 1 at the through groove can be improved.
The embodiment also provides a cover plate assembly, which comprises a cover plate body 3, an explosion-proof valve 4 and a ventilation structure as above, wherein the cover plate body 3 is provided with a mounting hole, the explosion-proof valve 4 is mounted in the mounting hole, and the ventilation structure is attached to the explosion-proof valve 4. The explosion-proof valve 4 can be prevented from being corroded by electrolyte while the explosion-proof valve 4 is ensured to be ventilated.
The embodiment also provides a battery, which comprises the cover plate assembly, and can prevent the electrolyte from corroding the explosion-proof valve 4 while ensuring the ventilation of the explosion-proof valve 4.
It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (10)
1. A breathable structure, comprising:
the anti-explosion valve protection plate comprises a protection plate body (1), wherein the protection plate body (1) is used for protecting an anti-explosion valve (4), and a through groove is formed in the edge of the protection plate body (1);
the valve sheet (2) is connected with the protection sheet body (1) and is positioned at the through groove, and the valve sheet (2) can rotate relative to the protection sheet body (1);
the valve plate (2) is configured to: when explosion-proof valve (4) do not exhaust, valve piece (2) with screening glass body (1) sealing connection, when explosion-proof valve (4) exhaust, valve piece (2) are relative screening glass body (1) rotates and opens.
2. The ventilation structure according to claim 1, wherein the protection sheet body (1) is provided with an abutting groove, the abutting groove is located at an end of the through groove, the valve sheet (2) is provided with an abutting portion (21), the abutting portion (21) corresponds to the abutting groove, and when the valve sheet (2) is hermetically connected with the protection sheet body (1), the abutting portion (21) is attached to a groove bottom surface of the abutting groove.
3. A ventilating structure according to claim 2, wherein a first magnetic member (11) is arranged on the bottom surface of the abutting groove, a second magnetic member (211) matching with the first magnetic member (11) is arranged on one side of the abutting portion (21) facing the abutting groove, and the polarities of the first magnetic member (11) and the second magnetic member (211) are opposite.
4. A ventilating structure according to claim 3, wherein a first mounting groove is formed on the bottom surface of the abutting groove, and the first magnetic member (11) is embedded in the first mounting groove.
5. A ventilation structure according to claim 3, wherein a second mounting groove is formed on a side of the abutting portion (21) facing the abutting groove, and the second magnetic member (211) is embedded in the second mounting groove.
6. A gas-permeable structure according to claim 2, characterized in that the abutment (21) is of integral construction with the valve plate (2).
7. A breathable structure according to claim 1, characterized in that a thickening layer is provided on the protective sheet body (1) along the circumferential direction of the through slot.
8. A gas-permeable structure according to claim 1, characterized in that the protective sheet body (1) and the valve sheet (2) are of an integral structure.
9. Cover plate assembly, characterized in that, including cover plate body (3), explosion-proof valve (4) and as in any claim 1-8 any ventilative structure, the cover plate body (3) is seted up the mounting hole, explosion-proof valve (4) are installed in the mounting hole, ventilative structure subsides are established on explosion-proof valve (4).
10. A battery comprising the cover plate assembly of claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220488370.4U CN217158526U (en) | 2022-03-08 | 2022-03-08 | Ventilative structure, apron subassembly and battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220488370.4U CN217158526U (en) | 2022-03-08 | 2022-03-08 | Ventilative structure, apron subassembly and battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217158526U true CN217158526U (en) | 2022-08-09 |
Family
ID=82692440
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220488370.4U Active CN217158526U (en) | 2022-03-08 | 2022-03-08 | Ventilative structure, apron subassembly and battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217158526U (en) |
-
2022
- 2022-03-08 CN CN202220488370.4U patent/CN217158526U/en active Active
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| GR01 | Patent grant |