CN213401446U - Power battery top cap and power battery - Google Patents
Power battery top cap and power battery Download PDFInfo
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- CN213401446U CN213401446U CN202021740939.9U CN202021740939U CN213401446U CN 213401446 U CN213401446 U CN 213401446U CN 202021740939 U CN202021740939 U CN 202021740939U CN 213401446 U CN213401446 U CN 213401446U
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- pole
- hole
- top cover
- injection molding
- cover plate
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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
Abstract
The utility model provides a power battery top cap, include: the plastic part comprises a first pole post component, a second pole post component, a top cover plate and a plastic part, wherein the top cover plate is provided with an injection molding hole part, a first pole post hole and a second pole post hole, and the injection molding holes are formed around the first pole post hole and the second pole post hole; the whole of the first upper pole and the second upper pole is in a multi-petal structure, a certain gap is formed between each petal shape, a circular hole is formed in the geometric center of the multi-petal structure, and a clamping hook is arranged below the circular hole; the plastic part is integrally injected and/or is fixed on the top cover plate through the injection molding hole part of the top cover plate in a split injection mode. The pole and the top cover plate are formed and fixed at one time in an integral injection molding or split injection molding mode, so that the assembly times of plastic on the anode and the cathode of the power battery and plastic on the cathode are reduced, the number of parts of a plastic part is reduced, the structural process of the top cover of the power battery is simplified, and the cost of the top cover of the power battery is reduced.
Description
Technical Field
The utility model relates to a power battery field relates to a power battery top cap and power battery very much.
Background
The power battery top cap structure commonly used at present is various, plastic part on the positive pole wherein, plastic part on the negative pole, plastic part under the positive pole and plastic part under the negative pole are single part respectively, just, plastic part on the negative pole is generally moulded plastics earlier and is fixed in top cap piece top with positive negative pole post connection after single part, or mould plastics with utmost point post and then be fixed in top cap piece top with positive negative pole post connection, or just, plastic part is alone with just on the negative pole, negative pole post and top cap piece are moulded plastics and are fixed in top cap piece top, just, plastic part is also generally moulded plastics earlier again and is fixed in top cap piece bottom with positive negative pole post connection after single part, or directly be fixed in top cap piece bottom after moulding plastics earlier and being single part. The number of the parts of the positive and negative electrode upper and lower plastic parts is large, and the structure process for fixing the positive and negative electrode upper and lower plastic parts on the top cover plate and the pole is complex and various.
Through the search, patent document CN108428818A discloses a top cover structure of a power battery, a power battery and a battery module including the top cover structure, including a first electrode assembly, a second electrode assembly and a top cover plate, where the first electrode assembly includes a first pole and a first connecting block, the top of the first pole includes a connecting section, the first connecting block includes a main body and a composite portion, the main body is made of a material having a first base metal, the first pole is made of a material having a second base metal, the composite portion is made of a material having a third base metal, the composite portion is composite with the main body, the composite portion is provided with a first connecting hole, the connecting section passes through the top cover plate and the first connecting block, the connecting section is welded with the composite portion, and the second electrode assembly is attached to the top cover plate. The assembly process of the prior art is complex, the assembly times are multiple, and the cost of the power battery top cover is higher.
SUMMERY OF THE UTILITY MODEL
To the defect among the prior art, the utility model aims at providing a power battery top cap and power battery.
According to the utility model provides a pair of power battery top cap, include: a first pole post component, a second pole post component, a top cover plate and a plastic component,
the first pole post assembly comprises a first upper pole post, a first lower pole post and a first pole post hole, wherein part of the first lower pole post penetrates through the first pole post hole and is assembled with the first upper pole post, and the first lower pole post and the first upper pole post are pre-assembled on the top cover sheet;
the second pole column assembly comprises a second upper pole column, a second lower pole column and a second pole column hole, part of the second lower pole column penetrates through the second pole column hole and is assembled with the second upper pole column, and the second lower pole column and the second upper pole column are pre-assembled on the top cover sheet;
the top cover sheet is provided with an injection molding hole part, a first polar column hole and a second polar column hole, and the injection molding hole part is arranged around the first polar column hole and the second polar column hole;
the whole of the first upper pole and the second upper pole is in a multi-petal structure, a certain gap is formed between each petal shape, a circular hole is formed in the geometric center of the multi-petal structure, and a clamping hook is arranged below the circular hole;
the plastic part is integrally injected and/or is fixed on the top cover plate through the injection molding hole part of the top cover plate in a split injection mode.
Preferably, the sealing device further comprises a first sealing ring and a second sealing ring, the first sealing ring is arranged in the first pole column hole, and the first upper pole column is arranged above the first sealing ring; the second sealing ring is arranged in the second pole column hole, and the second upper pole column is arranged above the second sealing ring.
Preferably, when the plastic part is subjected to split injection molding, the plastic part further comprises a first plastic part, a second plastic part, a first injection molding hole and a second injection molding hole, and the first plastic part fixes the pre-assembled first upper pole and the pre-assembled first lower pole on the top cover plate through the first injection molding hole on the top cover plate in an injection molding mode;
the second plastic part fixes the pre-assembled second upper pole column and the second lower pole column on the top cover plate again through a second injection molding hole in the top cover plate in an injection molding mode.
Preferably, when the plastic part is integrally injection-molded, the plastic part is made of insulating plastic.
Preferably, when the plastic parts are in split injection molding, the first plastic part can adopt insulating plastic or conductive plastic, and the second plastic part can adopt insulating plastic.
Preferably, the cross-sectional shape of the injection hole in the injection hole portion includes a circle, a T-shape, a square, a racetrack shape, or an oval shape.
Preferably, the injection holes in the injection hole portion may be arranged in a manner of being integrally arranged around the first and second pole holes, or a plurality of injection holes may be arranged in a distributed manner around the first and second pole holes.
Preferably, the pole socket further comprises a first lower pole upper boss and a second lower pole upper boss, and the interiors of the first lower pole upper boss and the second lower pole upper boss are hollow.
Preferably, the outer shapes of the upper bosses of the first upper pole and the second upper pole comprise a square shape, a circular shape, an oval shape or a racetrack shape.
According to the utility model provides a pair of power battery, including the power battery top cap of above-mentioned arbitrary item.
Compared with the prior art, the utility model discloses following beneficial effect has:
1. the pole and the top cover plate are formed at one time and fixed in the integral injection molding mode, so that the assembly times of plastic on the anode and the cathode of the power battery and plastic on the cathode are reduced, the number of parts of a plastic part is reduced, the structural process of the top cover of the power battery is simplified, and the cost of the top cover of the power battery is reduced.
2. Through adopting the mode that the components of a whole that can function independently was moulded plastics, make the plastic part close a part on the positive pole, down, the plastic part closes a part on the negative pole, and plastic, plastic respectively are a part under the plastic, the plastic under the positive pole, the plastic under the negative pole on the plastic on the traditional positive pole that has significantly reduced, and need be fixed in the structural technology complexity of top cap piece and utmost point post many times, have reduced the assembly number of times of plastic on positive, the negative pole, have reduced the cost of power battery top cap.
3. Through setting up utmost point post and utmost point post down into hollow, utmost point post part passes the top cap piece down to the reduction occupies power battery inside and outside high space, reserves more high spaces for power battery inside, has improved power battery's energy density.
Drawings
Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:
FIG. 1 is an exploded view of the overall structure of a power battery top cover;
FIG. 2 is a schematic diagram of the overall structure of a top cover of a power battery;
FIG. 3 is a cross-sectional view of the overall structure of the top cover of the power battery;
FIG. 4 is a cross-sectional view of one embodiment of a power cell top cover;
fig. 5 is an exploded view of one embodiment of a power cell top cover.
In the figure:
Detailed Description
The present invention will be described in detail with reference to the following embodiments. The following examples will assist those skilled in the art in further understanding the present invention, but are not intended to limit the invention in any way. It should be noted that various changes and modifications can be made by one skilled in the art without departing from the spirit of the invention. These all belong to the protection scope of the present invention.
As shown in fig. 1, fig. 2 and fig. 3, the utility model provides a power battery top cap, including top cap piece 1, first utmost point post hole 11, second utmost point post hole 12, first hole 13, the second of moulding plastics 14, first utmost point post 2, first sealing washer 3, first utmost point post 4, second utmost point post 5, second sealing washer 6, second utmost point post 7, plastic part 8, first plastic part 9 and second plastic part 10 of moulding plastics on the second.
The top cover plate 1 is provided with an injection molding hole part of a plastic part 8, a first pole column hole 11 and a second pole column hole 12, a first sealing ring 3 is arranged in the first pole column hole 11 of the top cover plate 1, a first upper pole column 2 is arranged above the first sealing ring 3, part of a first lower pole column 4 penetrates through the first pole column hole 11 of the top cover plate 1 to be assembled with the first upper pole column 2, and the first lower pole column and the first upper pole column are welded and pre-fixed to the top cover plate 1 after assembly;
meanwhile, a second sealing ring 6 is arranged in a second pole hole 12 of the top cover plate 1, a second upper pole 5 is arranged above the second sealing ring 6, and a second lower pole 7 partially penetrates through the second pole hole 12 of the top cover plate 1 to be assembled with the second upper pole 5, and is welded and pre-fixed to the top cover plate 1 after being assembled;
further, the plastic part 8 penetrates through the injection hole part of the top cover plate 1 to fix the welded first upper pole 2, the first lower pole 4 and the welded second upper pole 5 and the second lower pole 7 to the top cover plate 1 again, and separates the first upper pole 2, the first lower pole 4, the second upper pole 5 and the second lower pole 7 from the top cover plate 1.
Furthermore, the plastic part 8 is an integral plastic, which is an insulating plastic when the integral injection molding is performed;
the utility model discloses aVariation exampleFor further explanation.
In a variation, as shown in fig. 4 and 5, when the plastic part 8 is divided into a first plastic part 9 and a second plastic part 10, the first plastic part 9 penetrates the top cover plate 1 through a first injection hole 13 of the top cover plate 1 in an injection molding manner to fix the welded first upper pole 2 and the first lower pole 4 to the top cover plate 1 again, and blocks the first upper pole 2 and the first lower pole 4 from the top cover plate 1, and the second plastic part 10 penetrates the top cover plate 1 through a second injection hole 14 of the top cover plate 1 in an injection molding manner to fix the welded second upper pole 5 and the welded second lower pole 7 to the top cover plate 1 again, and blocks the second upper pole 5 and the second lower pole 7 from the top cover plate 1.
When the plastic part 8 is subjected to split injection molding, the plastic part further comprises a first plastic part 9, a second plastic part 10, a first injection molding hole 13 and a second injection molding hole 14, wherein the first plastic part 9 fixes the pre-assembled first upper pole 2 and the pre-assembled first lower pole 4 on the top cover plate 1 again through the first injection molding hole 13 on the top cover plate 1 in an injection molding mode; the second plastic part 10 fixes the pre-assembled second upper pole 5 and second lower pole 7 on the top cover plate 1 again through the second injection hole 14 on the top cover plate 1 in an injection molding mode.
When the plastic parts are in split injection molding, the first plastic part 9 can be made of insulating plastic or conductive plastic, and the second plastic part 10 can be made of insulating plastic.
In the basic embodiment, the outer shape of the upper convex platforms of the first upper pole post 2 and the second upper pole post 5 is circular, and in a further variation, the outer shape of the upper convex platforms may be square, oval or racetrack.
In still another variation, the cross-sectional shape of the injection hole in the injection hole portion may be circular, T-shaped, square, racetrack, or oval.
In the fourth variation, the whole of the first upper pole column 2 and the second upper pole column 5 is in a multi-petal structure, a certain gap is formed between each petal shape, a circular hole is formed in the geometric center of the multi-petal structure, a clamping hook is arranged below the circular hole, and the clamping hook can be in a conical shape, a T-shaped shape and the like.
The utility model discloses a with on the positive pole plastic part, on the negative pole plastic part, under the positive pole plastic part and the negative pole plastic part with the form of moulding plastics close to a part and be fixed in top cap piece and utmost point post, perhaps on the positive pole plastic part and under the positive pole plastic part with the form of moulding plastics close to a part, on the negative pole plastic part and the negative pole plastic part with the form of moulding plastics close to a part and be fixed in top cap piece and utmost point post.
The utility model provides a pair of power battery top cap structure, with traditional just, on the negative pole, down the plastic part closes to a part, perhaps on the positive pole, down the plastic part closes to a part, on the negative pole, down the plastic part closes to a part, be fixed in top cap piece and utmost point post with the mode of moulding plastics again, the plastic on the traditional positive pole that has significantly reduced, the plastic on the negative pole, plastic under the positive pole, the plastic respectively is a part under the negative pole, and need be fixed in the structural technology complexity of top cap piece and utmost point post many times, the assembly number of times of plastic about the positive pole has been reduced, the cost of power battery top cap has been reduced.
The foregoing description of the specific embodiments of the invention has been presented. It is to be understood that the present invention is not limited to the specific embodiments described above, and that various changes or modifications may be made by those skilled in the art within the scope of the appended claims without departing from the spirit of the invention. The embodiments and features of the embodiments of the present application may be combined with each other arbitrarily without conflict.
Claims (10)
1. A power battery top cap, characterized by, includes: a first pole post component, a second pole post component, a top cover plate (1) and a plastic component (8),
the first pole post assembly comprises a first upper pole post (2), a first lower pole post (4) and a first pole post hole (11), part of the first lower pole post (4) penetrates through the first pole post hole (11) and is assembled with the first upper pole post (2), and the first lower pole post (4) and the first upper pole post (2) are pre-assembled on the top cover plate (1);
the second pole column assembly comprises a second upper pole column (5), a second lower pole column (7) and a second pole column hole (12), part of the second lower pole column (7) penetrates through the second pole column hole (12) and is assembled with the second upper pole column (5), and the second lower pole column (7) and the second upper pole column (5) are pre-assembled on the top cover plate (1);
the top cover plate (1) is provided with an injection molding hole part, a first polar column hole (11) and a second polar column hole (12), and the injection molding hole part is arranged around the first polar column hole (11) and the second polar column hole (12);
the whole of the first upper pole (2) and the second upper pole (5) is of a multi-petal structure, a certain gap is formed between each petal shape, a circular hole is formed in the geometric center of the multi-petal structure, and a clamping hook is arranged below the circular hole;
the plastic part (8) is integrally injection-molded and/or is fixed on the top cover plate (1) through the injection molding hole part of the top cover plate (1) through the split injection molding of the first pole column assembly and the second pole column assembly.
2. The power battery top cover according to claim 1, characterized by further comprising a first sealing ring (3) and a second sealing ring (6), wherein the first sealing ring (3) is arranged in the first pole hole (11), and the first upper pole (2) is arranged above the first sealing ring (3); the second sealing ring (6) is arranged in the second pole post hole (12), and the second upper pole post (5) is arranged above the second sealing ring (6).
3. The top cover of the power battery according to claim 1, wherein when the plastic part (8) is formed by split injection molding, the top cover further comprises a first plastic part (9), a second plastic part (10), a first injection molding hole (13) and a second injection molding hole (14),
the first plastic part (9) fixes the pre-assembled first upper pole (2) and the first lower pole (4) on the top cover plate (1) again through a first injection molding hole (13) on the top cover plate (1) in an injection molding mode;
and the second plastic part (10) fixes the pre-assembled second upper pole (5) and the second lower pole (7) on the top cover plate (1) again through a second injection molding hole (14) on the top cover plate (1) in an injection molding mode.
4. The top cover of the power battery as claimed in claim 1, wherein the plastic part (8) is made of insulating plastic when the plastic part (8) is integrally injection-molded.
5. The top cover of the power battery as claimed in claim 3, wherein when the plastic parts (8) are formed by split injection molding, the first plastic part (9) can be made of insulating plastic or conductive plastic, and the second plastic part (10) can be made of insulating plastic.
6. The power cell header of claim 1, wherein the cross-sectional shape of the injection molded hole in the injection molded hole portion comprises a circle, a T-shape, a square, a racetrack shape, or an oval shape.
7. The power battery top cover according to claim 1, characterized in that the injection holes in the injection hole part can be arranged in a manner of being integrally arranged around the first pole hole (11) and the second pole hole (12), or a plurality of injection holes can be distributed around the first pole hole (11) and the second pole hole (12).
8. The power battery top cap of claim 1, further comprising a first lower pole upper boss and a second lower pole upper boss, wherein the first lower pole upper boss and the second lower pole upper boss are hollow.
9. The power battery top cover according to claim 1, wherein the outer shapes of the upper bosses of the first upper pole (2) and the second upper pole (5) comprise a square shape, a circular shape, an oval shape or a racetrack shape.
10. A power cell comprising the power cell top cover of any one of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021740939.9U CN213401446U (en) | 2020-08-19 | 2020-08-19 | Power battery top cap and power battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021740939.9U CN213401446U (en) | 2020-08-19 | 2020-08-19 | Power battery top cap and power battery |
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| Publication Number | Publication Date |
|---|---|
| CN213401446U true CN213401446U (en) | 2021-06-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021740939.9U Active CN213401446U (en) | 2020-08-19 | 2020-08-19 | Power battery top cap and power battery |
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| CN (1) | CN213401446U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113594596A (en) * | 2021-06-17 | 2021-11-02 | 济宁市海富电子科技有限公司 | Battery cover plate assembly, battery and assembly method of battery cover plate assembly |
| CN115275532A (en) * | 2022-09-30 | 2022-11-01 | 宁波震裕科技股份有限公司 | Manufacturing method of top cover structure of power battery and top cover structure thereof |
| EP4318811A1 (en) * | 2022-08-02 | 2024-02-07 | Aptiv Technologies Limited | Stamped and formed electrical contact and method of producing same |
-
2020
- 2020-08-19 CN CN202021740939.9U patent/CN213401446U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113594596A (en) * | 2021-06-17 | 2021-11-02 | 济宁市海富电子科技有限公司 | Battery cover plate assembly, battery and assembly method of battery cover plate assembly |
| CN113594596B (en) * | 2021-06-17 | 2023-09-15 | 徐州海富轻金属科技有限公司 | Battery cover plate assembly, battery and assembly method of battery cover plate assembly |
| EP4318811A1 (en) * | 2022-08-02 | 2024-02-07 | Aptiv Technologies Limited | Stamped and formed electrical contact and method of producing same |
| CN115275532A (en) * | 2022-09-30 | 2022-11-01 | 宁波震裕科技股份有限公司 | Manufacturing method of top cover structure of power battery and top cover structure thereof |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Room b105, 1st floor, building 4, 1255 Jinhai Road, Pudong New Area Free Trade Zone, Shanghai 200135 Patentee after: SHANGHAI RUIPU ENERGY Co.,Ltd. Patentee after: Ruipu Lanjun Energy Co., Ltd Address before: Room b105, 1st floor, building 4, 1255 Jinhai Road, Pudong New Area Free Trade Zone, Shanghai 200135 Patentee before: SHANGHAI RUIPU ENERGY Co.,Ltd. Patentee before: Ruipu Energy Co., Ltd |
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| CP01 | Change in the name or title of a patent holder |