CN218300121U - Battery cover plate and single battery thereof - Google Patents
Battery cover plate and single battery thereof Download PDFInfo
- Publication number
- CN218300121U CN218300121U CN202221403012.5U CN202221403012U CN218300121U CN 218300121 U CN218300121 U CN 218300121U CN 202221403012 U CN202221403012 U CN 202221403012U CN 218300121 U CN218300121 U CN 218300121U
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- CN
- China
- Prior art keywords
- explosion
- proof
- battery
- hole
- cover plate
- 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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- 238000010521 absorption reaction Methods 0.000 claims abstract description 18
- 238000007789 sealing Methods 0.000 claims abstract description 16
- 238000004880 explosion Methods 0.000 claims description 20
- 238000001179 sorption measurement Methods 0.000 abstract description 16
- 239000003792 electrolyte Substances 0.000 abstract description 14
- 229920000297 Rayon Polymers 0.000 abstract description 4
- 238000002791 soaking Methods 0.000 abstract description 4
- 239000007788 liquid Substances 0.000 description 6
- 230000001681 protective effect Effects 0.000 description 4
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000013022 venting Methods 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 discloses a battery cover plate and single battery, battery cover plate includes plate body, utmost point post and explosion-proof assembly, and utmost point post sets up on the plate body, has seted up explosion-proof hole on the plate body, and explosion-proof assembly is connected with explosion-proof hole, and explosion-proof assembly includes explosion-proof cover, explosion-proof piece, first adsorption part and second adsorption part, and explosion-proof cover sets up in the opening part of explosion-proof hole, and explosion-proof piece sets up in explosion-proof hole; the first adsorption part is arranged on the hole wall of the explosion-proof hole, one end of the second adsorption part is connected with the explosion-proof cover, and the other end of the second adsorption part is connected with the first adsorption part. The utility model discloses a battery cover is through setting up plate body, utmost point post and explosion-proof subassembly to adopt first absorption spare and second to adsorb the mode of being connected and install fixedly to explosion-proof cover, replace the mounting means who adopts the viscose among the prior art from this, so, not only can prevent that electrolyte from soaking on the explosion-proof piece, overall structure is simple compact moreover, makes sealing performance effectively improve.
Description
Technical Field
The utility model relates to a battery cell technical field especially relates to a battery cover plate and battery cell thereof.
Background
In the single battery, the main function of the explosion-proof valve is to ensure the balance of the internal and external air pressure of the single battery and prevent the explosion when the internal air pressure of the battery is too high. However, when the electrolyte injection process is performed in the actual production process of the battery, electrolyte leakage is easy to occur, so that the electrolyte flows to the surface of the explosion-proof valve, the explosion-proof valve is corroded, and the potential safety hazard of the battery exists. In order to prevent the electrolyte from corroding the explosion-proof valve, a protective film is usually adhered above the explosion-proof valve, and the electrolyte is blocked from contacting the explosion-proof valve through the protective film.
However, the existing protective film is generally adhered above the explosion-proof valve by means of adhering a back adhesive on the back surface, but when liquid leakage occurs, part of electrolyte can contact with the back adhesive of the protective film, so that the adhesion of the back adhesive is affected, and the safety performance of the explosion-proof valve is affected.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming the weak point among the prior art, provide one kind and can prevent that electrolyte from soaking on the explosion-proof piece, and simple structure is compact, battery apron and battery cell with good sealing performance.
The purpose of the utility model is realized through the following technical scheme:
a battery cover plate comprising: the anti-explosion device comprises a plate body, a pole and an anti-explosion assembly, wherein the pole is arranged on the plate body, an anti-explosion hole is formed in the plate body, the anti-explosion assembly is connected with the anti-explosion hole, the anti-explosion assembly comprises an anti-explosion cover, an anti-explosion piece, a first absorption part and a second absorption part, the anti-explosion cover is arranged at the opening of the anti-explosion hole, and the anti-explosion piece is arranged in the anti-explosion hole; the first absorbing part is arranged on the hole wall of the explosion-proof hole, one end of the second absorbing part is connected with the explosion-proof cover, and the other end of the second absorbing part is connected with the first absorbing part.
In one embodiment, the explosion-proof assembly further comprises a sealing gasket, one surface of the sealing gasket is arranged on the explosion-proof cover, and the other surface of the sealing gasket is bonded on the plate body.
In one embodiment, the sealing pad is provided with at least one air hole.
In one embodiment, the seal is an annular structure.
In one embodiment, the second absorbing part comprises a supporting part and an absorbing part, one end of the supporting part is connected with the explosion-proof cover, the other end of the supporting part is connected with the absorbing part, and the absorbing part is connected with the first absorbing part.
In one embodiment, the suction part is a magnetic suction plate, and the first suction piece is a magnetic suction block.
In one embodiment, the suction part is arranged in parallel with the first suction part.
In one embodiment, the first suction member and the second suction member are respectively provided in plurality.
In one embodiment, the cross section of the explosion-proof hole is a trapezoid cross section.
A single battery comprises the battery cover plate and a battery shell, wherein the battery cover plate is arranged at an opening of the battery shell.
Compared with the prior art, the utility model discloses at least, following advantage has:
the utility model discloses a battery cover is through setting up plate body, utmost point post and explosion-proof subassembly to adopt first absorption spare and second to adsorb the mode of being connected and install fixedly to explosion-proof cover, replace the mounting means who adopts the viscose among the prior art from this, so, not only can prevent that electrolyte from soaking on the explosion-proof piece, overall structure is simple compact moreover, makes sealing performance effectively improve.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the embodiments will be briefly described below.
Fig. 1 is a schematic structural view of a battery cover plate according to an embodiment of the present invention;
FIG. 2 is a cross-sectional view of the battery cover plate of FIG. 1;
FIG. 3 is an enlarged view of a portion A of FIG. 2;
fig. 4 is a schematic structural diagram of an explosion-proof assembly according to an embodiment of the present invention.
Detailed Description
In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. Referring to fig. 1, 2, 3 and 4, a battery cover plate 10 includes a plate 100, a terminal 200 and an explosion-proof assembly 300, wherein the terminal 200 is disposed on the plate 100, the plate 100 is provided with an explosion-proof hole 110, and the explosion-proof assembly 300 is connected to the explosion-proof hole 110; the explosion-proof assembly 300 comprises an explosion-proof cover 310, an explosion-proof sheet 320, a first absorption part 330 and a second absorption part 340, wherein the explosion-proof cover 310 is arranged at the opening of the explosion-proof hole 110, and the explosion-proof sheet 320 is arranged in the explosion-proof hole 110; the first absorbing part 330 is disposed on the hole wall of the explosion-proof hole 110, one end of the second absorbing part 340 is connected with the explosion-proof cover 310, and the other end of the second absorbing part 340 is connected with the first absorbing part 330.
It should be noted that the plate body 100 is a smooth aluminum plate structure, so that the battery cover plate 10 has good corrosion-resistant and rust-resistant performances, the plate body 100 is provided with the explosion-proof hole 110 and the liquid injection hole 120, so that the gas can be exhausted through the explosion-proof hole 110, the expansion and explosion of the single battery can be avoided, and the liquid injection hole 120 is used for injecting liquid, so that the electrolyte can enter the single battery. Further, the two poles 200 are provided, respectively, as a positive pole and a negative pole, thereby enabling the conductive connection of the battery. The explosion-proof assembly 300 is disposed on the explosion-proof hole 110, so that the battery can be exhausted when the battery expands, thereby preventing the battery from expanding and exploding. Specifically, the explosion-proof assembly 300 includes an explosion-proof cover 310, an explosion-proof sheet 320, a first absorbing part 330 and a second absorbing part 340, the explosion-proof cover 310 is disposed at the opening of the explosion-proof hole 110, and the explosion-proof cover 310 is tightly connected with the plate body 100 by the absorption of the first absorbing part 330 and the second absorbing part 340, so as to achieve the effect of sealing; meanwhile, when liquid leakage occurs, the explosion-proof cover 310 is fixedly mounted in a mode of the first adsorption part 330 and the second adsorption part 340, and electrolyte can be prevented from corroding viscose glue on the explosion-proof cover 310, so that the sealing effect of the explosion-proof cover 310 and the plate body 100 is influenced, the electrolyte can be prevented from being immersed into the explosion-proof hole 110, the explosion-proof sheet 320 is prevented from being corroded, and the overall sealing performance can be improved. The utility model discloses a battery apron 10 is through setting up plate body 100, utmost point post 200 and explosion-proof subassembly 300 to adopt first absorption part 330 and second absorption part 340 to adsorb the mode of being connected and install explosion-proof lid 310 fixedly, replace the mounting means who adopts the viscose among the prior art from this, so, not only can prevent that electrolyte from soaking on the explosion-proof piece, overall structure is simple compact moreover, makes sealing performance effectively improve.
As shown in fig. 3 and 4, the explosion-proof assembly 300 further includes a gasket 350, one side of the gasket 350 is disposed on the explosion-proof cover 310, and the other side of the gasket 350 is adhered to the panel 100. In the present embodiment, the gasket 350 has an annular structure, and at least one air hole 351 is formed on the gasket 350.
By providing the gasket 350 on the explosion-proof cover 310, the overall sealing performance can be improved. By providing the vent hole 351 in the gasket 350, it is possible to perform a venting operation after the explosion-proof sheet 320 is broken by air pressure, thereby preventing the battery from rapidly expanding. Because the explosion-proof cover 310 is fixedly installed through the first adsorption part 330 and the second adsorption part 340, when the sealing gasket 350 is corroded due to liquid leakage, the explosion-proof cover 310 can be fixedly sealed through the first adsorption part 330 and the second adsorption part 340, and therefore, the sealing performance of the explosion-proof cover 310 cannot be affected.
Referring to fig. 3, in an embodiment, the second absorbing member 340 includes a supporting portion 341 and an absorbing portion 342, one end of the supporting portion 341 is connected to the explosion-proof cover 310, the other end of the supporting portion 341 is connected to the absorbing portion 342, and the absorbing portion 342 is connected to the first absorbing member 330. In the present embodiment, the suction part 342 is disposed in parallel with the first suction part 330, so that the contact area between the suction part 342 and the first suction part 330 can be increased, and the overall suction force can be increased.
It should be noted that the first suction member 330 and the second suction member 340 are respectively provided in plural numbers, so that the mounting stability of the explosion-proof cover 310 can be improved. The second adsorption piece 340 is composed of a support portion 341 and an adsorption portion 342, and the adsorption portion 342 can extend into the explosion-proof hole 110 to be connected with the first adsorption piece 330 by arranging the support portion 341, so that the overall structure is more compact. In this embodiment, the absorption part 342 is a magnetic absorption plate, and the first absorption part 330 is a magnetic absorption block, so that the explosion-proof cover 310 can be fixedly installed in a magnetic absorption manner, thereby making the whole structure simpler and more compact.
In an embodiment, as shown in fig. 2 and fig. 3, the cross section of the explosion-proof hole 110 is a trapezoid cross section, so that not only the material of the explosion-proof cover 310 can be saved, but also the gas flow can be more concentrated, thereby improving the valve opening accuracy of the explosion-proof cover 310.
In one embodiment, a single battery comprises the battery cover plate 10 and a battery shell, the battery cover plate 10 is arranged at the opening of the battery shell, so that the sealing performance of the single battery can be improved, electrolyte can be prevented from being soaked on an anti-explosion sheet, and the quality of the single battery can be improved,
the above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the concept of the present invention, several variations and modifications can be made, which all fall within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (10)
1. A battery cover plate comprising: the anti-explosion plate comprises a plate body, a pole column and an anti-explosion assembly, wherein the pole column is arranged on the plate body, an anti-explosion hole is formed in the plate body, and the anti-explosion assembly is connected with the anti-explosion hole; the first absorbing part is arranged on the hole wall of the explosion-proof hole, one end of the second absorbing part is connected with the explosion-proof cover, and the other end of the second absorbing part is connected with the first absorbing part.
2. The battery cover plate according to claim 1, wherein the explosion-proof assembly further comprises a gasket, one surface of the gasket is disposed on the explosion-proof cover, and the other surface of the gasket is bonded to the plate body.
3. The battery cover plate according to claim 2, wherein the sealing gasket is provided with at least one air hole.
4. The battery cover plate according to claim 2 or 3, wherein the gasket is of an annular structure.
5. The battery cover plate according to any one of claims 1 to 3, wherein the second suction member includes a support portion and a suction portion, one end of the support portion is connected to the explosion-proof cover, the other end of the support portion is connected to the suction portion, and the suction portion is connected to the first suction member.
6. The battery cover plate according to claim 5, wherein the absorption part is a magnetic absorption plate, and the first absorption member is a magnetic absorption block.
7. The battery cover plate according to claim 6, wherein the suction portion is disposed in parallel with the first suction member.
8. The battery cover plate according to claim 7, wherein a plurality of the first and second suction members are provided, respectively.
9. The battery cover plate according to any one of claims 1 to 3, wherein the explosion-proof hole has a trapezoidal cross section in cross section.
10. A single battery comprising the battery cover plate of any one of claims 1 to 9, further comprising a battery case, wherein the battery cover plate is disposed at an opening of the battery case.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221403012.5U CN218300121U (en) | 2022-06-07 | 2022-06-07 | Battery cover plate and single battery thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221403012.5U CN218300121U (en) | 2022-06-07 | 2022-06-07 | Battery cover plate and single battery thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218300121U true CN218300121U (en) | 2023-01-13 |
Family
ID=84788757
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221403012.5U Active CN218300121U (en) | 2022-06-07 | 2022-06-07 | Battery cover plate and single battery thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218300121U (en) |
-
2022
- 2022-06-07 CN CN202221403012.5U patent/CN218300121U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |