CN209641728U - Power battery top cover and power battery with pole fluid injection through-hole structure - Google Patents
Power battery top cover and power battery with pole fluid injection through-hole structure Download PDFInfo
- Publication number
- CN209641728U CN209641728U CN201920513202.4U CN201920513202U CN209641728U CN 209641728 U CN209641728 U CN 209641728U CN 201920513202 U CN201920513202 U CN 201920513202U CN 209641728 U CN209641728 U CN 209641728U
- Authority
- CN
- China
- Prior art keywords
- hole
- fluid injection
- power battery
- top cover
- battery
- 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.)
- Active
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- 239000012530 fluid Substances 0.000 title claims abstract description 67
- 238000002347 injection Methods 0.000 title claims abstract description 66
- 239000007924 injection Substances 0.000 title claims abstract description 66
- 238000007789 sealing Methods 0.000 claims abstract description 22
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 13
- 239000003792 electrolyte Substances 0.000 claims abstract description 8
- 239000004568 cement Substances 0.000 claims description 32
- 238000004880 explosion Methods 0.000 claims description 9
- 238000001746 injection moulding Methods 0.000 claims description 6
- 238000003466 welding Methods 0.000 claims description 6
- 239000003292 glue Substances 0.000 claims description 5
- 238000000034 method Methods 0.000 abstract description 9
- 229910052782 aluminium Inorganic materials 0.000 abstract description 4
- 239000004411 aluminium Substances 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000013112 stability test Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 102000005877 Peptide Initiation Factors Human genes 0.000 description 1
- 108010044843 Peptide Initiation Factors Proteins 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000565 sealant Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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
- Filling, Topping-Up Batteries (AREA)
- Sealing Battery Cases Or Jackets (AREA)
Abstract
The utility model discloses power battery top cover and power battery with pole fluid injection through-hole structure, which includes battery cap ontology；The left and right ends of the battery cap ontology, which extend through, is provided with positive terminal and negative terminal；The fluid injection through-hole for injecting electrolyte into power battery is offered on the positive terminal or negative terminal, and bottom is connected with connection sheet；The connection sheet through-hole being connected to the fluid injection through-hole is offered in the connection sheet；The connection sheet through-hole and the fluid injection through-hole are concentric holes, and the aperture of connection sheet through-hole is less than the aperture of fluid injection through-hole.The utility model can reduce top cover light aluminium sheet processing procedure process, production cost is reduced, while improving the density CONSENSUS of light aluminium sheet, reduces pollution of the leakage to battery surface and environment, and battery security and stability are improved, and prevent the problem of sealing element of fluid injection through-hole falls into inside battery.
Description
Technical field
The utility model relates to rectangular Hard-shell power battery technical fields, and in particular to pole fluid injection through-hole structure
Power battery top cover and power battery.
Background technique
Existing rectangular Hard-shell power battery fluid injection lead to the hole site is on top cover light aluminium flake, and light aluminium flake is relatively thin, in punch process
In will lead to light aluminium flake local density unevenness, generate deformation, consistency is poor；Due to light aluminium flake in later period fluid injection seal process
It is relatively thin, sealing element (steel ball or sealant nail etc.) poorly sealed wind that can be generated leakage and fall into inside battery of fluid injection through-hole
Danger, can cause the internal resistance of cell to change, shorter battery life, and it is on fire dangerous with explosion etc. to also result in internal short-circuit of battery initiation
Factor simultaneously pollutes environment, battery surface.
Utility model content
The purpose of the utility model is to provide power battery top cover and power battery with pole fluid injection through-hole structure, with
Light aluminium flake processing procedure process is reduced, reduces production cost, while improving the density CONSENSUS of light aluminium flake, reduces leakage to battery surface
And the pollution of environment, it improves battery security and stability, the sealing element for preventing fluid injection through-hole falls into inside battery.
A kind of in order to achieve the above object, the utility model provides power battery top with pole fluid injection through-hole structure
Lid comprising battery cap ontology；The left and right ends of the battery cap ontology, which extend through, is provided with positive terminal and negative terminal；
The fluid injection through-hole for injecting electrolyte into power battery is offered on the positive terminal or negative terminal, and bottom is connected with company
Contact pin；The connection sheet through-hole being connected to the fluid injection through-hole is offered in the connection sheet；The connection sheet through-hole and the note
Fluid through-hole is concentric holes, and the aperture of connection sheet through-hole is less than the aperture of fluid injection through-hole.
The above-mentioned power battery top cover with pole fluid injection through-hole structure, wherein be provided in the connection sheet for sudden and violent
The notch of positive terminal or negative terminal described in exposed portion.
The above-mentioned power battery top cover with pole fluid injection through-hole structure, wherein the battery cap ontology is light aluminium
Piece.
The above-mentioned power battery top cover with pole fluid injection through-hole structure, wherein the power battery top cover further includes
The lower plastic cement of anode, positive sealing ring and the upper plastic cement of anode；It is close that the positive terminal sequentially passes through plastic cement under anode, anode from bottom to top
Seal and battery cap ontology；The upper plastic cement of anode passes through integrated injection molding for positive terminal, the lower plastic cement of anode and battery cap sheet
Body is fixed.
The above-mentioned power battery top cover with pole fluid injection through-hole structure, wherein the power battery top cover further includes
Plastic cement on plastic cement, cathode sealing ring and cathode under cathode；It is close that the negative terminal sequentially passes through plastic cement under cathode, cathode from bottom to top
Seal and battery cap ontology；Plastic cement passes through integrated injection molding for plastic cement under negative terminal, cathode and battery cap sheet on the cathode
Body is fixed.
The above-mentioned power battery top cover with pole fluid injection through-hole structure, wherein the middle part of the battery cap ontology
It is provided with an explosion-proof through-hole；The lower surface of the explosion-proof through-hole is equipped with explosion rupture disk.
The above-mentioned power battery top cover with pole fluid injection through-hole structure, wherein the explosion rupture disk passes through laser welding
In the lower surface of battery cap ontology.
The above-mentioned power battery top cover with pole fluid injection through-hole structure, wherein the upper surface of the explosion-proof through-hole is set
There is the protection patch for being protected to explosion rupture disk.
The above-mentioned power battery top cover with pole fluid injection through-hole structure, wherein under the lower plastic cement of the anode or cathode
Plastic cement is equipped with the explosion-proof groove flowed out for battery electrolyte inside or gas corresponding with the explosion-proof lead to the hole site.
The utility model additionally provides a kind of power battery, is equipped with thereon above-mentioned with pole fluid injection through-hole structure
Power battery top cover.
Compared with the existing technology, the utility model has the following beneficial effects:
The utility model is a kind of completely new power battery top cover and power battery with pole fluid injection through-hole structure, is taken
Disappear the fluid injection through-hole of existing smooth aluminum flake surface, replaces and fluid injection through-hole is arranged on pole, and corresponding connection sheet also is provided with connecting
Piece through-hole is connected to this connection sheet through-hole after battery cap ontology and the assembly of pole laser welding with fluid injection through-hole in connection sheet
Concentric holes and aperture be slightly less than fluid injection through-hole, do not influence fluid injection；This scheme can not influence pole conveyance capacity while solve
Battery leakage discharge situation solves the problems, such as that the sealing element of fluid injection through-hole is fallen into inside battery core, promotes stability test and safety
Property.
Detailed description of the invention
Fig. 1 is the top cover structure of power battery schematic diagram of an embodiment of the present invention；
Fig. 2 is the power battery top cover explosive view of an embodiment of the present invention；
Fig. 3 is the battery cap ontology and connection sheet laser welding schematic rear view of an embodiment of the present invention；
Fig. 4 is the positive terminal structural schematic diagram of an embodiment of the present invention；
Fig. 5 is the connection sheet structural schematic diagram below the positive terminal of an embodiment of the present invention.
Specific embodiment
Below in conjunction with attached drawing, by specific embodiment, the utility model will be further described, these embodiments are only used for
Illustrate the utility model, is not the limitation to scope of protection of the utility model.
As shown in Figure 1, Figure 2 and Figure 3, the utility model provides a kind of power battery with pole fluid injection through-hole structure
Top cover comprising battery cap ontology 10；The left and right ends of the battery cap ontology 10, which extend through, is provided with positive terminal 21
With negative terminal 31；As shown in Figure 4 and Figure 5, it offers on the positive terminal 21 or negative terminal 31 for being injected into power battery
The fluid injection through-hole 40 of electrolyte, and bottom is connected with connection sheet 51；It is offered in the connection sheet 51 and the fluid injection through-hole 40
The connection sheet through-hole 52 of connection, so that connection sheet through-hole 52 and 40 common combination of fluid injection through-hole form the channel of injection electrolyte；
The connection sheet through-hole 52 is concentric holes with the fluid injection through-hole 40, and the aperture of connection sheet through-hole 52 is less than fluid injection through-hole 40
Aperture promotes stability test and safety can prevent the sealing element of fluid injection through-hole 40 from falling into inside battery core.Institute in Fig. 3
Display is only to illustrate positive terminal 21 and negative terminal 31 using the connection structure of 40 scheme of fluid injection through-hole, in practical set, this
40 scheme of fluid injection through-hole can also select one of them on negative terminal 31 on positive terminal 21；Pole fluid injection through-hole 40
Scheme is not only limited the use of in round electrode column sealing mode, can also be the modes such as steel ball or glue nail.Use is provided in the connection sheet 51
In the notch for exposing the part positive terminal 21 or negative terminal 31.The battery cap ontology 10 is light common in this field
Aluminium flake.
The power battery top cover further includes plastic cement 22 under anode, positive sealing ring 23 and the upper plastic cement 24 of anode；It is described just
Pole 21 sequentially passes through plastic cement 22 under anode, positive sealing ring 23 and battery cap ontology 10 from bottom to top；It is moulded on the anode
Glue 24 is fixed with battery cap ontology 10 by positive terminal 21, the lower plastic cement 22 of anode by integrated injection molding, and battery cap ontology 10 is logical
It crosses positive sealing ring 23 and realizes upper-lower seal.
The power battery top cover further includes plastic cement 32 under cathode, plastic cement 34 on cathode sealing ring 33 and cathode；It is described negative
Pole 31 sequentially passes through plastic cement 32 under cathode, cathode sealing ring 33 and battery cap ontology 10 from bottom to top；It is moulded on the cathode
Glue 34 is fixed by plastic cement 32 under negative terminal 31, cathode and battery cap ontology 10 by integrated injection molding, and battery cap ontology 10 is logical
It crosses cathode sealing ring 33 and realizes upper-lower seal.
The middle part of the battery cap ontology 10 is provided with an explosion-proof through-hole 61；The lower surface of the explosion-proof through-hole 61 is equipped with
Explosion rupture disk 62.The explosion rupture disk 62 is by laser welding in the lower surface of battery cap ontology 10.The explosion-proof through-hole 61 it is upper
Surface attaches the protection patch 63 being equipped with for being protected to explosion rupture disk 62.Plastic cement 32 under the lower plastic cement 22 of the anode or cathode
It is equipped with the explosion-proof groove 64 flowed out for battery electrolyte inside or gas corresponding with explosion-proof 61 position of through-hole.
The utility model additionally provides a kind of power battery, is equipped with thereon above-mentioned with pole fluid injection through-hole structure
Power battery top cover.
In conclusion the fluid injection through-hole of the prior art, there are a procedure in process, stamps out on light aluminium flake
The fluid injection via depth come is shallower, and later period sealing is poorly sealed there are sealing element and falls into the risk of inside battery；It is poorly sealed
Leakage discharge not only has pollution to single battery surface, also has an impact to the stability safety of battery modules, while polluting ring
Border.
Fluid injection through-hole is arranged in the utility model on pole regarding to the issue above, increases fluid injection via depth, can allow note
The sealing element of fluid through-hole has more spaces to be sealed, and can carry out secondary seal, thus solves the problems, such as discharge leakage；Pole
Column and connection sheet laser welding, fluid injection through-hole is the concentric holes being connected to through-hole in connection sheet on pole, and connection sheet through-hole is small
In fluid injection through-hole diameter, can prevent sealing element from falling into inside battery influences battery core safety.
It is discussed in detail although the content of the utility model has passed through above preferred embodiment, but it should be appreciated that on
The description stated is not considered as limitations of the present invention.After those skilled in the art have read above content, for
A variety of modifications and substitutions of the utility model all will be apparent.Therefore, the protection scope of the utility model should be by appended
Claim limit.
Claims (10)
1. a kind of power battery top cover with pole fluid injection through-hole structure, which is characterized in that including battery cap ontology；It is described
The left and right ends of battery cap ontology, which extend through, is provided with positive terminal and negative terminal；It is offered on the positive terminal or negative terminal
For injecting the fluid injection through-hole of electrolyte into power battery, and bottom is connected with connection sheet；Offered in the connection sheet with
The connection sheet through-hole of the fluid injection through-hole connection；The connection sheet through-hole and the fluid injection through-hole are concentric holes, and connection sheet is logical
The aperture in hole is less than the aperture of fluid injection through-hole.
2. as described in claim 1 with the power battery top cover of pole fluid injection through-hole structure, which is characterized in that the connection
On piece is provided with the notch for exposing the part positive terminal or negative terminal.
3. as described in claim 1 with the power battery top cover of pole fluid injection through-hole structure, which is characterized in that the battery
Top cover body is light aluminium flake.
4. as described in claim 1 with the power battery top cover of pole fluid injection through-hole structure, which is characterized in that the power
Battery cap further includes plastic cement under anode, positive sealing ring and the upper plastic cement of anode；The positive terminal sequentially passes through just from bottom to top
Extremely play plastic cement, positive sealing ring and battery cap ontology；The upper plastic cement of anode passes through integrated injection molding for positive terminal, the lower modeling of anode
Glue is fixed with battery cap ontology.
5. as claimed in claim 4 with the power battery top cover of pole fluid injection through-hole structure, which is characterized in that the power
Battery cap further includes plastic cement under cathode, plastic cement on cathode sealing ring and cathode；The negative terminal sequentially passes through negative from bottom to top
Extremely play plastic cement, cathode sealing ring and battery cap ontology；Plastic cement will be moulded by integrated injection molding under negative terminal, cathode on the cathode
Glue is fixed with battery cap ontology.
6. as claimed in claim 5 with the power battery top cover of pole fluid injection through-hole structure, which is characterized in that the battery
An explosion-proof through-hole is provided in the middle part of top cover body；The lower surface of the explosion-proof through-hole is equipped with explosion rupture disk.
7. as claimed in claim 6 with the power battery top cover of pole fluid injection through-hole structure, which is characterized in that described explosion-proof
Piece is by laser welding in the lower surface of battery cap ontology.
8. as claimed in claim 6 with the power battery top cover of pole fluid injection through-hole structure, which is characterized in that described explosion-proof
The upper surface of through-hole is equipped with the protection patch for being protected to explosion rupture disk.
9. as claimed in claim 6 with the power battery top cover of pole fluid injection through-hole structure, which is characterized in that the anode
Plastic cement, which is equipped with, under lower plastic cement or cathode corresponding with the explosion-proof lead to the hole site flows out for battery electrolyte inside or gas
Explosion-proof groove.
10. a kind of power battery, which is characterized in that be equipped with has pole thereon as claimed in any one of claims 1-9 wherein
The power battery top cover of fluid injection through-hole structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920513202.4U CN209641728U (en) | 2019-04-16 | 2019-04-16 | Power battery top cover and power battery with pole fluid injection through-hole structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920513202.4U CN209641728U (en) | 2019-04-16 | 2019-04-16 | Power battery top cover and power battery with pole fluid injection through-hole structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209641728U true CN209641728U (en) | 2019-11-15 |
Family
ID=68497691
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920513202.4U Active CN209641728U (en) | 2019-04-16 | 2019-04-16 | Power battery top cover and power battery with pole fluid injection through-hole structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209641728U (en) |
-
2019
- 2019-04-16 CN CN201920513202.4U patent/CN209641728U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Room 923, building a, Castle Peak headquarters building, 2666 Longxiang Road, Longwan District, Wenzhou City, Zhejiang Province 325024 Patentee after: REPT BATTERO Energy Co., Ltd. Patentee after: SHANGHAI RUIPU ENERGY Co.,Ltd. Address before: Room 923, building a, Castle Peak headquarters building, 2666 Longxiang Road, Longwan District, Wenzhou City, Zhejiang Province 325024 Patentee before: RUIPU ENERGY Co.,Ltd. Patentee before: SHANGHAI RUIPU ENERGY Co.,Ltd. |