CN220652161U - Battery cover plate and battery - Google Patents
Battery cover plate and battery Download PDFInfo
- Publication number
- CN220652161U CN220652161U CN202322184718.8U CN202322184718U CN220652161U CN 220652161 U CN220652161 U CN 220652161U CN 202322184718 U CN202322184718 U CN 202322184718U CN 220652161 U CN220652161 U CN 220652161U
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- Prior art keywords
- pole
- groove
- battery
- cover plate
- piece
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- 238000003825 pressing Methods 0.000 claims abstract description 17
- 238000007789 sealing Methods 0.000 claims description 33
- 238000003780 insertion Methods 0.000 claims description 13
- 230000037431 insertion Effects 0.000 claims description 13
- 239000012212 insulator Substances 0.000 claims description 10
- 238000010276 construction Methods 0.000 claims 1
- 230000000149 penetrating effect Effects 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 239000011810 insulating material Substances 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000007731 hot pressing Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- -1 polypropylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000008707 rearrangement Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Connection Of Batteries Or Terminals (AREA)
Abstract
The utility model belongs to the technical field of batteries, and discloses a battery cover plate and a battery, wherein the battery comprises a battery core and a battery cover plate, the battery cover plate is electrically connected with a lug of the battery core, the battery cover plate comprises a top cover plate, a pole piece and an insulating piece, and the top cover plate is provided with a pole groove and a pressing flanging arranged around the pole groove; the pole piece is arranged in the pole groove, and the press fit flanging can limit the pole piece in the pole groove; the insulating piece is wound around the periphery of the pole piece and is positioned between the pole piece and the pole groove, the insulating piece can isolate the pole piece and the top cover plate, the battery cover plate is simple in structure and low in manufacturing cost, has good insulating performance, can effectively avoid battery short circuit, and improves the safety performance of the battery.
Description
Technical Field
The utility model relates to the technical field of batteries, in particular to a battery cover plate and a battery.
Background
The battery is a power source commonly used in the modern society, the battery cover plate is used as an important component of the battery, plays a role of a battery sealing function, provides a temperature protection and safety valve for the battery, and plays a role of an anode or cathode conductive terminal at the same time, and the existing battery cover plate part adopts a flanging structure. Therefore, a battery cover plate and a battery are needed to solve the above problems.
Disclosure of Invention
One object of the present utility model is to:
in one aspect, a battery cover plate is provided, and a pole piece and a top cover plate are isolated through an insulating piece, so that high-voltage faults or short circuits caused by contact of the pole piece with the top cover plate are avoided.
On the other hand, the battery has good insulating property, avoids short circuit of the battery and improves the safety performance of the battery.
To achieve the purpose, the utility model adopts the following technical scheme:
a battery cover plate comprising:
a top cover plate, wherein a pole groove and a pressing flanging arranged around the pole groove are formed in the top cover plate;
the pole piece is arranged in the pole groove, and the press fit flanging can limit the pole piece in the pole groove;
the insulating piece is wound on the periphery of the pole piece and is positioned between the pole piece and the pole groove, and the insulating piece can isolate the pole piece from the top cover piece.
Preferably, the insulating piece is coated outside the pressing flanging.
Preferably, the pole piece comprises a pole body and a pole convex ring, the pole convex ring surrounds the periphery of the pole body, the pole body is connected with the pole convex ring, the insulator is sleeved on the periphery of the pole convex ring, and the insulator is abutted to the inner side wall of the pole groove and the press-fit flanging.
Preferably, the press-fit flange protrudes above the pole convex ring to limit upward movement of the pole piece.
Preferably, the insulating member is an integrally formed structure.
Preferably, the pole groove is provided with a seal piece, one end of the seal piece is abutted with the pole piece, and the other end of the seal piece is abutted with the groove bottom of the pole groove so as to seal a gap between the pole piece and the groove bottom of the pole groove.
Preferably, the sealing member comprises a planar portion and an insertion portion, the planar portion and the insertion portion are connected, the insertion portion penetrates through the pole groove, a first end of the planar portion is pressed against the bottom of the pole groove, and a second end of the planar portion is abutted against the pole member.
Preferably, the sealing member is provided in an annular structure, the first end of the planar portion is provided with a pressing groove surrounding the periphery of the insertion portion, and the bottom of the pole groove is provided with a pressing convex ring capable of extending into the pressing groove.
Preferably, the pole slot further comprises an insulating shell, and the insulating shell is connected with one side of the top cover piece, which is away from the pole slot.
A battery comprises a battery core, a battery shell and a battery cover plate, wherein the battery core is arranged in the battery shell, and a tab of the battery core is electrically connected with a pole piece.
The utility model has the beneficial effects that:
the utility model provides a battery cover plate and a battery, wherein the battery cover plate is electrically connected with a lug of the battery, the battery cover plate comprises a top cover plate, a pole piece and an insulating piece, the pole piece can be electrically connected with the lug of the battery, a pole groove for accommodating the pole piece and a press-fit flanging arranged around the pole groove are formed in the top cover plate, the pole piece is limited in the pole groove by the press-fit flanging to prevent the pole piece from moving or falling, the insulating piece is arranged between the pole piece and the pole groove, two ends of the insulating piece are respectively abutted against the pole piece and the inner side wall of the pole groove, the insulating piece can completely isolate the pole piece and the top cover plate, the insulating performance of the battery cover plate is improved, the high-voltage poor or short circuit caused by the contact of the pole piece with the top cover plate is avoided, the battery cover plate is simple in structure and low in manufacturing cost, and the safety and the stability of the battery are improved by improving the insulating performance of the battery.
Drawings
The utility model is described in further detail below with reference to the drawings and examples;
FIG. 1 is an isometric view of a battery cover plate;
FIG. 2 is a partial schematic view of a battery cover plate;
FIG. 3 is a partial schematic view of a battery cover plate at a stage of an assembly step;
fig. 4 is a partial schematic view of the battery cover plate at a stage of assembly.
In the figure:
1. a top cover sheet; 2. a pole piece; 3. an insulating member; 4. a seal; 5. an insulating housing; 11. a pole groove; 12. pressing and flanging; 13. pressing the convex ring; 21. a pole body; 22. a post collar; 41. a planar portion; 42. an insertion section; 43. a pressing groove; 31. an insulating collar.
Detailed Description
In order to make the technical problems solved by the present utility model, the technical solutions adopted and the technical effects achieved more clear, the technical solutions of the embodiments of the present utility model will be described in further detail below with reference to the accompanying drawings, and it is obvious that the described embodiments are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to fall within the scope of the utility model.
In the description of the present utility model, unless explicitly stated and limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.
In the description herein, it should be understood that the terms "upper," "lower," "left," "right," and the like are based on the orientation or positional relationship shown in the drawings, and are merely for convenience of description and to simplify the operation, rather than to indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the utility model. Furthermore, the terms "first," "second," and the like, are used merely for distinguishing between descriptions and not for providing a special meaning.
In the description herein, reference to the term "one embodiment," "an example," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples.
The technical scheme of the utility model is further described below by the specific embodiments with reference to the accompanying drawings.
The utility model provides a battery, which comprises a battery core, a battery shell and a battery cover plate, wherein the battery core is arranged in the battery shell, a lug of the battery core is electrically connected with the battery cover plate, and particularly, as shown in fig. 1, the battery cover plate comprises a pole piece 2, the lug of the battery core is electrically connected with the pole piece 2, the battery cover plate bears the function of battery sealing, provides temperature protection for the battery, and simultaneously plays a role of an anode or cathode conductive terminal through the pole piece 2.
As shown in fig. 2, the battery cover plate further comprises a top cover plate 1 and an insulating member 3, wherein the top cover plate 1 is provided with a pole groove 11 and a press-fit flanging 12 surrounding the pole groove 11, the pole piece 2 is arranged in the pole groove 11, and the press-fit flanging 12 can limit the pole piece 2 in the pole groove 11. Illustratively, the pole piece 2 includes a pole body 21 and a pole convex ring 22, the pole convex ring 22 is disposed around the periphery of the pole body 21, the pole body 21 and the pole convex ring 22 are in an integral structure, the bottom of the pole body 21 can be abutted with the tab of the battery core, so as to realize electrical connection with the battery core, and the press-fit flange 12 protrudes above the pole convex ring 22 to limit the pole convex ring 22 in the pole groove 11 so as to limit axial movement of the pole piece 2. The position of the pole piece 2 can be simply and effectively defined by the structure of the press-fit flange 12, and the structure is simple and the manufacturing cost is low.
As shown in fig. 1 to 2, in order to avoid that the pole piece 2 contacts the top cover plate 1 to cause high voltage defect or short circuit, the battery cover plate further comprises an insulating piece 3, the insulating piece 3 is wound around the periphery of the pole piece 2 and is located between the pole piece 2 and the pole groove 11, and the insulating piece 3 can isolate the pole piece 2 and the top cover plate 1. The insulating piece 3 is sleeved on the periphery of the convex ring of the pole piece 2, the insulating piece 3 is abutted with the inner side wall of the pole groove 11 and the press-fit flanging 12, the insulating piece 3 completely isolates the pole piece 2 from the top cover piece 1, and short circuit or poor high voltage caused by contact between the pole piece 2 and the top cover piece 1 is avoided; meanwhile, the insulating piece 3 is coated outside the press-fit flanging 12, so that short circuit or high-voltage faults caused by contact between the top cover piece 1 and the battery shell and/or the electrode lugs are avoided.
As shown in fig. 2, the battery cover plate further includes a sealing member 4, the sealing member 4 is disposed through the pole groove 11, one end of the sealing member 4 abuts against the pole piece 2, the other end of the sealing member 4 abuts against the groove bottom of the pole groove 11 to seal a gap between the pole piece 2 and the groove bottom of the pole groove 11, specifically, the sealing member 4 includes a flat portion 41 and an insertion portion 42 connected to each other, the insertion portion 42 is disposed through the pole groove 11, the first end of the flat portion abuts against the groove bottom of the pole groove 11, and the second end of the flat portion 41 abuts against the pole piece 2; further, the sealing element 4 is made of insulating materials, so that the sealing element 4 can provide waterproof and dustproof protection for the pole piece 2 on one hand, and can isolate the pole piece 2 from the bottom of the pole groove 11 on the other hand, and high-voltage faults or short circuits caused by the fact that the bottom of the pole piece 2 contacts the bottom of the pole groove 11 are avoided.
Illustratively, as shown in fig. 2, the sealing element 4 is provided with an annular structure, the first end of the planar portion 41 is provided with a pressing groove 43 surrounding the periphery of the insertion portion 42, the bottom of the pole groove 11 is provided with a pressing convex ring 13 capable of extending into the pressing groove 43, the pressing groove 43 and the insertion fit of the pressing convex ring 13 play a role in assembly and positioning, assembly of the battery cover plate is facilitated, on the other hand, the insertion of the pressing convex ring 13 into the pressing groove 43 can limit the radial position of the sealing element 4 in the pole groove 11, the pole element 2 can limit the axial position of the sealing element 4 in the pole groove 11, and sealing failure or insulation failure caused by position deviation or falling of the sealing element 4 is avoided.
Illustratively, the sealing member 4 is made of elastic rubber, so that two ends of the sealing member 4 can be respectively attached to the pole groove 11 and the pole piece 2, so as to improve the sealing performance of the sealing member 4.
As shown in fig. 2, the bottom of the insulating member 3 is further provided with an insulating convex ring 31, the insulating convex ring 31 extends radially inwards, the bottom of the insulating convex ring 31 is abutted to the bottom of the pole groove 11, the top of the insulating convex ring 31 is abutted to the pole piece 2, in order to avoid interference between the insulating convex ring 31 and the sealing member 4 in the assembly process, the inner diameter of the insulating convex ring 31 is not smaller than the outer diameter of the sealing member 4, and meanwhile, the top surface of the insulating convex ring 31 is not higher than the top surface of the sealing member 4, so that the insulating convex ring 31 plays an axial positioning role on one hand, and on the other hand, the insulating performance of the battery cover plate can be further improved.
The insulator 3 may be made of an insulating material such as polypropylene, for example.
As shown in fig. 2, the battery cover plate further comprises an insulating housing 5, wherein the insulating housing 5 is connected with one side of the top cover plate 1, which is away from the pole groove 11, so that the sealing performance and the insulating performance of the battery cover plate are further improved, the top cover plate 1 is protected, the collision abrasion between the top cover and the outside is reduced, and the service life of the battery cover plate is prolonged.
The assembly and manufacture of the battery cover plate mainly comprises three steps:
step one: as shown in fig. 3, the press-fit flange 12 is in a vertical state, the sealing element 4 is installed in the pole groove 11 through the positioning fit of the press-fit convex ring 13 and the press-fit groove 43, the cylindrical insulating element 3 with the insulating convex ring 31 slides into the pole groove 11 along the inner side wall of the pole groove 11, the bottom of the insulating convex ring 31 is abutted with the bottom of the pole groove 11, the pole element 2 slides into the pole groove 11 along the inner side wall of the insulating element 3, and the bottom of the pole element 2 is abutted with the top of the sealing element 4;
step two: as shown in fig. 4, the press-fit flanging 12 is rolled inwards by the edge rolling machine, so that the press-fit flanging 12 is bent inwards and parallel to the pole convex ring 22, and the insulator 3 is driven to deform synchronously, so that the sealing element 4, the insulator 3 and the pole piece 2 are fixed in the pole groove 11;
step three: as shown in fig. 2, the insulating member 3 is bonded to the outer side surface of the press flange 12 by hot pressing.
Furthermore, the foregoing description of the preferred embodiments and the principles of the utility model is provided herein. It will be understood by those skilled in the art that the present utility model is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the utility model. Therefore, while the utility model has been described in connection with the above embodiments, the utility model is not limited to the embodiments, but may be embodied in many other equivalent forms without departing from the spirit or scope of the utility model, which is set forth in the following claims.
Claims (10)
1. A battery cover plate, comprising:
a top cover piece (1), wherein a pole groove (11) and a pressing flanging (12) which surrounds the pole groove (11) are formed in the top cover piece (1);
the pole piece (2), the pole piece (2) is arranged in the pole groove (11), and the press fit flanging (12) can limit the pole piece (2) in the pole groove (11);
the insulator (3), insulator (3) are around locating the week portion of utmost point post spare (2), and are located utmost point post spare (2) with utmost point post groove (11), insulator (3) can keep apart utmost point post spare (2) with top cap piece (1).
2. Battery cover according to claim 1, characterized in that the insulating element (3) is covered outside the press-fit flange (12).
3. Battery cover plate according to claim 2, characterized in that the pole piece (2) comprises a pole body (21) and a pole protruding ring (22), the pole protruding ring (22) is arranged around the periphery of the pole body (21), the pole body (21) is connected with the pole protruding ring (22), the insulator (3) is sleeved on the periphery of the pole protruding ring (22), and the insulator (3) is abutted with the inner side wall of the pole groove (11) and the press-fit flanging (12).
4. A battery cover according to claim 3, wherein the press fit flange (12) protrudes above the post collar (22) to limit upward movement of the post member (2).
5. Battery cover according to claim 1, characterized in that the insulating member (3) is of integrally formed construction.
6. The battery cover plate according to any one of claims 1-5, further comprising a sealing member (4), wherein the sealing member (4) is penetrated in the pole groove (11), one end of the sealing member (4) is abutted against the pole piece (2), and the other end of the sealing member (4) is abutted against the groove bottom of the pole groove (11) to seal a gap between the pole piece (2) and the groove bottom of the pole groove (11).
7. The battery cover plate according to claim 6, wherein the sealing member (4) comprises a planar portion (41) and an insertion portion (42) which are connected, the insertion portion (42) is arranged in the pole groove (11) in a penetrating manner, a first end of the planar portion (41) is pressed against the groove bottom of the pole groove (11), and a second end of the planar portion (41) is abutted against the pole piece (2).
8. Battery cover plate according to claim 7, characterized in that the sealing member (4) is provided in a ring-like structure, the first end of the planar portion (41) is provided with a press-fit groove (43) provided around the outer periphery of the insertion portion (42), and the bottom of the pole groove (11) is provided with a press-fit convex ring (13) capable of extending into the press-fit groove (43).
9. Battery cover plate according to any one of claims 1-5, further comprising an insulating housing (5), said insulating housing (5) being connected to a side of the top cap piece (1) facing away from the pole groove (11).
10. A battery, characterized by comprising a battery cell, a battery case and a battery cover plate according to any one of claims 1-9, wherein the battery cell is arranged in the battery case, and a tab of the battery cell is electrically connected with the pole piece (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322184718.8U CN220652161U (en) | 2023-08-15 | 2023-08-15 | Battery cover plate and battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322184718.8U CN220652161U (en) | 2023-08-15 | 2023-08-15 | Battery cover plate and battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220652161U true CN220652161U (en) | 2024-03-22 |
Family
ID=90262623
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322184718.8U Active CN220652161U (en) | 2023-08-15 | 2023-08-15 | Battery cover plate and battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220652161U (en) |
-
2023
- 2023-08-15 CN CN202322184718.8U patent/CN220652161U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |