CN211907489U - Cover plate assembly, battery and battery module - Google Patents
Cover plate assembly, battery and battery module Download PDFInfo
- Publication number
- CN211907489U CN211907489U CN202020435215.7U CN202020435215U CN211907489U CN 211907489 U CN211907489 U CN 211907489U CN 202020435215 U CN202020435215 U CN 202020435215U CN 211907489 U CN211907489 U CN 211907489U
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- cover plate
- battery
- hole
- plate assembly
- accommodating hole
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- 230000004308 accommodation Effects 0.000 claims description 15
- 239000007788 liquid Substances 0.000 claims description 14
- 238000002347 injection Methods 0.000 claims description 11
- 239000007924 injection Substances 0.000 claims description 11
- 239000012212 insulator Substances 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims description 4
- 238000004026 adhesive bonding Methods 0.000 claims description 3
- 230000008018 melting Effects 0.000 claims 1
- 238000002844 melting Methods 0.000 claims 1
- 238000004382 potting Methods 0.000 claims 1
- 238000003466 welding Methods 0.000 abstract description 14
- 238000005516 engineering process Methods 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 2
- 239000003792 electrolyte Substances 0.000 description 2
- 239000012943 hotmelt Substances 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- 239000013585 weight reducing agent Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Classifications
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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
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Abstract
The utility model relates to a battery technology field specifically discloses an apron subassembly, battery and battery module. The cover plate assembly comprises a top cover plate, a pole post assembly and an insulating part, wherein a first accommodating hole is formed in the top cover plate, an annular groove is formed in the periphery of the first accommodating hole in the top cover plate, the pole post assembly comprises a positive pole post and a negative pole post, the positive pole post and the negative pole post are both arranged in the first accommodating hole, and the insulating part is arranged in the first accommodating hole and used for isolating the positive pole post and the negative pole post. The cover plate assembly provided by the utility model has the advantages that the first accommodating hole is formed in the top cover plate, and the positive pole and the negative pole are both arranged in the first accommodating hole, so that the size of the cover plate assembly in the height direction is relatively reduced; through setting up the annular groove for this top cover plate thickness all around is great, and middle thickness is thinner, and welding thickness when not only can satisfying this apron subassembly and battery case's casing welding can realize this lightweight demand of apron subassembly moreover.
Description
Technical Field
The utility model relates to a battery technology field especially relates to an apron subassembly, battery and battery module.
Background
In recent years, with the rapid development of new energy automobiles, the new energy automobiles gradually replace fuel automobiles and are more and more widely applied.
Among the prior art, automobile-used power battery's apron subassembly generally includes top cap piece and sealing connection the utmost point post on the top cap piece, and utmost point post protrusion top cap piece's top surface sets up, and the top cap piece is connected through the welded mode with battery case, in order to satisfy welding thickness requirement and guarantee welding quality, and the thickness of top cap piece is generally thicker, and this just makes the quality of apron subassembly great, is unfavorable for the lightweight demand of battery module, and battery module's space utilization is lower.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an apron subassembly, battery and battery module, simple structure, and can realize the lightweight demand of battery module, improve the space utilization of battery module.
As the conception, the utility model adopts the technical proposal that:
a cover plate assembly comprising:
the top cover plate is provided with a first accommodating hole, and an annular groove is formed in the periphery of the first accommodating hole in the top cover plate;
the pole post assembly comprises a positive pole post and a negative pole post, and the positive pole post and the negative pole post are both arranged in the first accommodating hole;
and the insulating part is arranged in the first accommodating hole and used for isolating the positive pole column and the negative pole column.
As a preferable aspect of the cap assembly, the insulating part includes:
the first insulating part is provided with a second accommodating hole, and the positive pole is arranged in the second accommodating hole;
the second insulating part is arranged side by side with the first insulating part, a third accommodating hole is formed in the second insulating part, and the negative pole column is arranged in the third accommodating hole.
As a preferable aspect of the cover plate assembly, the cross-sectional shape of the second accommodation hole and the cross-sectional shape of the third accommodation hole are both rectangular structures, and the positive electrode post and the negative electrode post are both rectangular structures.
As a preferred scheme of apron subassembly, the insulating part with between the top cover plate and the utmost point post subassembly with adopt the mode of hot melt, gluing or encapsulating to be connected between the insulating part.
In a preferred embodiment of the cover plate assembly, a stopper step is provided at a bottom of the first accommodation hole, and the insulating portion can abut against the stopper step.
As a preferable scheme of the cover plate assembly, the cover plate assembly further comprises a third insulating piece, and the third insulating piece is arranged on one side, far away from the annular groove, of the top cover plate.
As a preferred scheme of a apron subassembly, set up on the top cover piece and annotate the liquid hole, annotate the liquid hole with first accommodation hole interval sets up, just annotate the liquid hole and run through the bottom of top cover piece.
In order to achieve the above object, the present invention further provides a battery, which includes a battery casing, the battery casing is provided with an opening for installing the core bag, and the battery further includes a cover plate assembly according to any one of the above schemes, wherein the cover plate assembly is connected with the battery casing and is plugged into the opening.
As a preferred scheme of battery, be provided with the constant head tank on one of the outer wall of the top cover plate of apron subassembly and the inner wall of battery case, be provided with the location arch on the other, the location arch can the joint in the constant head tank.
In order to achieve the above object, the present invention also provides a battery module including the battery as above.
The utility model has the advantages that:
the utility model provides a cover plate component, which comprises a top cover plate, a pole component and an insulating part, wherein the pole component comprises a positive pole column and a negative pole column, the positive pole column and the negative pole column are both arranged in a first accommodating hole by arranging the first accommodating hole on the top cover plate, compared with the mode that the top surface of the pole column protruding out of the top cover plate is arranged in the prior art, the cover plate component has a relatively small size in the height direction, and the space utilization rate of a battery module can be improved; in addition, be provided with the annular groove in the periphery of first accommodation hole on the top cap piece for this top cap piece thickness all around is great, and middle thickness is thinner, and welding thickness when not only can satisfying this apron subassembly and battery case's casing welding guarantees welding quality, can make the weight reduction of this apron subassembly moreover, realizes its lightweight demand.
The utility model also provides a battery, including above-mentioned apron subassembly, the apron subassembly sets up in battery case's tip, not only can guarantee welding quality, can also realize the lightweight demand of this battery.
The utility model also provides a battery module, including above-mentioned battery, through adopting above-mentioned battery, simple structure, weight is lighter, and has saved the exterior space that utmost point post subassembly took the top-hat piece to the energy density of battery module has been improved.
Drawings
Fig. 1 is a schematic structural diagram of a cover plate assembly provided in an embodiment of the present invention;
fig. 2 is an exploded view of a cover plate assembly provided by an embodiment of the present invention;
fig. 3 is a schematic view illustrating a matching relationship between a cover plate assembly and a battery case according to an embodiment of the present invention;
fig. 4 is a partial enlarged view of fig. 3 at a.
In the figure:
100-a battery housing; 101-a positioning projection;
1-top cover sheet; 11-a first receiving hole; 12-an annular groove; 13-liquid injection hole; 14-a positioning groove;
2-pole assembly; 21-positive pole column; 22-negative pole post;
3-an insulating part; 31 — a first insulator; 311-second receiving hole; 32-a second insulator; 321-a third receiving hole;
4-third insulation.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. 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 of the structures related to the present invention are shown in the drawings, not all of the structures.
In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, detachably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. 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 description of the present embodiment, the terms "upper", "lower", "left", "right", and the like are used in the orientation or positional relationship shown in the drawings only for convenience of description and simplicity of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.
As shown in fig. 1 to 3, the present embodiment provides a cover plate assembly, which includes a top cover plate 1, a pole post assembly 2 and an insulating part 3, wherein a first accommodation hole 11 is formed in the top cover plate 1, an annular groove 12 is formed in the top cover plate 1 at the periphery of the first accommodation hole 11, the pole post assembly 2 includes a positive pole post 21 and a negative pole post 22, the positive pole post 21 and the negative pole post 22 are both disposed in the first accommodation hole 11, and the insulating part 3 is disposed in the first accommodation hole 11 and is used for isolating the positive pole post 21 from the negative pole post 22.
In the cover plate assembly provided by the embodiment, the first accommodating hole 11 is formed in the top cover plate 1, and the positive pole post 21 and the negative pole post 22 are both arranged in the first accommodating hole 11, so that compared with the mode that the pole post assembly 2 is arranged to protrude out of the top surface of the top cover plate 1 in the prior art, the size of the cover plate assembly in the height direction is relatively small, and the external space of the top cover plate 1 occupied by the pole post assembly 2 is saved; in addition, be provided with annular groove 12 in the periphery of first accommodation hole 11 on top cover plate 1 for this top cover plate 1's thickness is great all around, and middle thickness is thinner, and welding thickness when not only can satisfying this apron subassembly and the casing welding of battery case 100 guarantees welding quality, can make the weight reduction of this apron subassembly moreover, realizes its lightweight demand.
Further, the insulating portion 3 includes a first insulating member 31 and a second insulating member 32, the first insulating member 31 is provided with a second receiving hole 311, the positive post 21 is disposed in the second receiving hole 311, the second insulating member 32 is disposed side by side with the first insulating member 31, the second insulating member 32 is provided with a third receiving hole 321, and the negative post 22 is disposed in the third receiving hole 321. In this way, the insulation of the cover plate assembly can be improved. In this embodiment, the first insulating member 31 and the second insulating member 32 are both made of inorganic non-metallic materials, and have good insulating properties.
Further, the cross-sectional shape of the second accommodation hole 311 and the cross-sectional shape of the third accommodation hole 321 are both rectangular structures, and the positive post 21 and the negative post 22 are both rectangular parallelepiped structures. Compare in the utmost point post of traditional cylindrical structure, the apron subassembly that this embodiment provided designs anodal post 21 and negative pole post 22 for the cuboid structure, can adopt the mode shaping of punching press, and the shaping is easy, and the waste material that produces in the in-process of preparation is less, and the connected mode is nimble and convenient during the equipment, and at the in-process that uses, the radiating area of anodal post 21 and the negative pole post 22 of cuboid structure is great, and the radiating effect is better.
In this embodiment, adopt the mode of hot melt, gluing or encapsulating to be connected between insulating part 3 and the top cover plate 1 and between utmost point post subassembly 2 and the insulating part 3, and the connection form is various, and is convenient nimble.
Further, a limit step is provided at the bottom of the first accommodation hole 11, and the insulating portion 3 can abut against the limit step. By providing the limiting step at the bottom of the first accommodating hole 11, the first insulating member 31 and the second insulating member 32 can abut against the limiting step when being placed in the first accommodating hole 11, thereby facilitating the placement of the first insulating member 31 and the second insulating member 32.
Further, the cover plate assembly further comprises a third insulating member 4, and the third insulating member 4 is arranged on one side of the top cover plate 1 far away from the annular groove 12. By providing the third insulating member 4, the sealing and isolating effects of the top cover sheet 1 are ensured. It can be understood that, a first avoiding hole is formed in the third insulating member 4 corresponding to the first accommodating hole 11, the first avoiding hole is communicated with the first accommodating hole 11, and the first avoiding hole plays a role in avoiding the positive pole 21 and the negative pole 22. Preferably, in this embodiment, the third insulating member 4 is plastic.
Furthermore, a liquid injection hole 13 is formed in the top cover plate 1, the liquid injection hole 13 is used for introducing electrolyte, the liquid injection hole 13 and the first accommodating hole 11 are arranged at intervals, and the liquid injection hole 13 penetrates through the bottom of the top cover plate 1. It can be understood that the third insulating part 4 is provided with a second avoiding hole corresponding to the liquid injection hole 13, the second avoiding hole is communicated with the liquid injection hole 13, and the second avoiding hole plays a role in avoiding the liquid injection hole 13, so that the electrolyte is conveniently introduced.
The apron subassembly that this embodiment provided, not only intensity is higher, and the leakproofness is good, and environmental suitability is strong.
The present embodiment further provides a battery, as shown in fig. 3 to 4, the battery includes a battery case 100 and the above-mentioned cover plate assembly, the battery case 100 is provided with an opening for installing the core pack, and the cover plate assembly is connected to the battery case 100 and blocks the opening of the battery case 100. Preferably, the top cover sheet 1 and the battery case 100 are connected to each other by welding, and the connection strength is high and the connection is stable.
The battery that this embodiment provided through setting up above-mentioned apron subassembly, not only can guarantee welding quality, can also realize the lightweight demand of this battery, simplified the structure of apron subassembly for this battery is simple more swift to battery module in groups, and manufacturing cost reduces.
Further, a positioning groove 14 is provided on one of the outer wall of the top cover plate 1 and the inner wall of the battery case 100, a positioning protrusion 101 is provided on the other, and the positioning protrusion 101 can be clamped in the positioning groove 14. Through setting up constant head tank 14 and the protruding 101 of location of mutual joint, can realize the accurate location of top sheet 1 and battery case 100 for the sealing of this battery is more reliable and stable.
Specifically, when the battery provided by the embodiment is assembled, the cover plate assembly is pressed in the battery shell 100, and after the positioning protrusion 101 is clamped in the positioning groove 14, the cover plate assembly and the battery shell 100 are connected in a welding manner, so that the operation is simple, the connection strength is high, and the positioning is accurate.
This embodiment still provides a battery module, including above-mentioned battery, simple structure, weight is lighter, has saved utmost point post subassembly 2 and has taken the exterior space of top cap piece 1, has improved battery module's space utilization and battery module's energy density.
The above embodiments have been described only the basic principles and features of the present invention, and the present invention is not limited by the above embodiments, and is not departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. A cover plate assembly, comprising:
the top cover plate (1) is provided with a first accommodating hole (11), and an annular groove (12) is formed in the periphery of the first accommodating hole (11) in the top cover plate (1);
a pole assembly (2) comprising a positive pole (21) and a negative pole (22), the positive pole (21) and the negative pole (22) both being disposed within the first accommodation hole (11);
and an insulating part (3) which is provided in the first accommodation hole (11) and separates the positive electrode post (21) from the negative electrode post (22).
2. The cover plate assembly according to claim 1, wherein the insulating portion (3) comprises:
a first insulating member (31), wherein a second accommodating hole (311) is formed in the first insulating member (31), and the positive pole (21) is arranged in the second accommodating hole (311);
and a second insulating member (32) arranged side by side with the first insulating member (31), wherein a third accommodating hole (321) is formed in the second insulating member (32), and the negative pole (22) is arranged in the third accommodating hole (321).
3. The cap plate assembly according to claim 2, wherein the cross-sectional shape of the second receiving hole (311) and the cross-sectional shape of the third receiving hole (321) are both rectangular structures, and the positive post (21) and the negative post (22) are both rectangular parallelepiped structures.
4. The cover plate assembly according to claim 1, wherein the insulating part (3) and the top cover plate (1) and the pole assembly (2) and the insulating part (3) are connected by means of hot melting, gluing or potting.
5. The cover plate assembly according to claim 1, wherein a bottom of the first receiving hole (11) is provided with a stopper step against which the insulating portion (3) can abut.
6. The lid assembly according to claim 1, further comprising a third insulator (4), the third insulator (4) being provided on a side of the top lid sheet (1) remote from the annular groove (12).
7. The lid plate assembly according to claim 1, wherein a liquid injection hole (13) is formed in the top lid plate (1), the liquid injection hole (13) is spaced apart from the first receiving hole (11), and the liquid injection hole (13) penetrates through the bottom of the top lid plate (1).
8. A battery comprising a battery housing (100), the battery housing (100) being provided with an opening for a core package to be mounted, characterized by further comprising a cover plate assembly according to any one of claims 1 to 7, the cover plate assembly being connected to the battery housing (100) and sealing the opening.
9. The battery according to claim 8, wherein one of the outer wall of the top cover plate (1) of the cover plate assembly and the inner wall of the battery housing (100) is provided with a positioning groove (14), and the other is provided with a positioning protrusion (101), and the positioning protrusion (101) can be clamped in the positioning groove (14).
10. A battery module comprising the battery according to claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020435215.7U CN211907489U (en) | 2020-03-30 | 2020-03-30 | Cover plate assembly, battery and battery module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020435215.7U CN211907489U (en) | 2020-03-30 | 2020-03-30 | Cover plate assembly, battery and battery module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211907489U true CN211907489U (en) | 2020-11-10 |
Family
ID=73274586
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020435215.7U Active CN211907489U (en) | 2020-03-30 | 2020-03-30 | Cover plate assembly, battery and battery module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211907489U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115425344A (en) * | 2022-09-20 | 2022-12-02 | 湖北亿纬动力有限公司 | Top cover assembly and battery |
| WO2023024690A1 (en) * | 2021-08-27 | 2023-03-02 | 宁德时代新能源科技股份有限公司 | Battery cell and battery, device, preparation method, and preparation device related thereto |
-
2020
- 2020-03-30 CN CN202020435215.7U patent/CN211907489U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023024690A1 (en) * | 2021-08-27 | 2023-03-02 | 宁德时代新能源科技股份有限公司 | Battery cell and battery, device, preparation method, and preparation device related thereto |
| CN115425344A (en) * | 2022-09-20 | 2022-12-02 | 湖北亿纬动力有限公司 | Top cover assembly and battery |
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