CN216120511U - Cover plate assembly for battery cell and battery cell with cover plate assembly - Google Patents
Cover plate assembly for battery cell and battery cell with cover plate assembly Download PDFInfo
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- CN216120511U CN216120511U CN202122617931.4U CN202122617931U CN216120511U CN 216120511 U CN216120511 U CN 216120511U CN 202122617931 U CN202122617931 U CN 202122617931U CN 216120511 U CN216120511 U CN 216120511U
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- cover plate
- positioning
- battery cell
- plate assembly
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Abstract
The utility model provides a cover plate assembly for a battery cell and the battery cell with the cover plate assembly, wherein the cover plate assembly comprises a top cover plate; riveting a block; the riveting device comprises an upper plastic, a top cover plate and a riveting block, wherein the upper plastic is clamped between the top cover plate and the riveting block and is provided with a first positioning part, a second positioning part and a reinforcing part; the post and the post are sequentially arranged on the top cover plate, the upper plastic and the riveting block in a penetrating mode. From this, will go up plastic and lamina tecti and riveting piece location fit respectively through first location portion, second location portion, reduce the riveting degree of difficulty of utmost point post, promote the structural strength of first location portion, second location portion department through the rib simultaneously, prevent to go up the problem that the fracture appears in the riveting in-process in the position that the plastic was equipped with first location portion and second location portion, promote the reliability of apron subassembly.
Description
Technical Field
The utility model relates to the technical field of power batteries, in particular to a cover plate assembly for a battery cell and the battery cell with the cover plate assembly.
Background
In the field of vehicles, the development of energy-based electric vehicles is a great trend. The core power source of the electric automobile is a power battery, so the performance of the power battery is particularly important. The electric core is used as an electric energy storage unit of a common power battery and mainly comprises a cover plate, a shell and a connecting sheet.
Among the correlation technique, the apron adopts riveted cooperation mode to assemble usually, and the structural strength of last plastic in the apron subassembly is weak, appears the problem of fracture easily in the riveting process to arouse the resistance change, influence the security of electric core.
SUMMERY OF THE UTILITY MODEL
In view of the above, the present invention is directed to a cover plate assembly for a battery cell, so as to improve the structural strength of the cover plate.
In order to achieve the purpose, the technical scheme of the utility model is realized as follows:
a cover plate assembly for a battery cell, comprising: a top cover plate; riveting a block; the riveting device comprises an upper plastic, a top cover plate and a riveting block, wherein the upper plastic is clamped between the top cover plate and the riveting block and is provided with a first positioning part, a second positioning part and a reinforcing part; the terminal post sequentially penetrates through the top cover plate, the upper plastic and the riveting block.
According to some embodiments of the utility model, the upper plastic comprises: go up the plastic body, it is equipped with the utmost point post hole to go up the plastic body, utmost point post hole is used for supplying utmost point post passes.
According to some embodiments of the utility model, the reinforcement portion includes a raised portion corresponding to the first positioning portion and located on a side of the upper plastic body facing away from the top cover plate; and/or the bulge part corresponds to the second positioning part and is positioned on one side of the upper plastic body, which deviates from the riveting block.
According to some embodiments of the utility model, the first positioning portion is configured as a first positioning hole, the bulge portion is arranged around the first positioning hole, and the bulge portion is located on a side of the upper plastic body facing away from the top cover plate.
According to some embodiments of the utility model, the second positioning portion is configured as a second positioning hole, the raised portion is disposed around the second positioning hole, and the raised portion is located on a side of the upper plastic body facing away from the riveting block.
According to some embodiments of the utility model, the reinforcement portion further includes a reinforcing rib provided on an inner wall surface of the positioning hole.
According to some embodiments of the utility model, the rib extends from an end of the inner wall surface remote from the bulge to an inner edge of the bulge.
According to some embodiments of the present invention, the reinforcing rib is provided in plurality, and the plurality of reinforcing ribs are provided at intervals in a circumferential direction of the inner wall surface.
According to some embodiments of the utility model, the reinforcing part further comprises a reinforcing rib provided to the raised part, and the reinforcing rib extends in the same direction as the raised part.
Compared with the prior art, the cover plate assembly has the following advantages:
through first location portion, second location portion respectively will go up plastic and lamina tecti and riveting piece location fit, reduce the riveting degree of difficulty of utmost point post, promote the structural strength of first location portion, second location portion department through the rib simultaneously, prevent to go up the problem that the fracture appears in the riveting in-process in the position that the plastic was equipped with first location portion and second location portion, promote the reliability of apron subassembly.
Another object of the present invention is to provide a battery cell.
In order to achieve the purpose, the technical scheme of the utility model is realized as follows:
a battery cell comprises the cover plate assembly.
The advantages of the battery cell and the cover plate assembly are the same as those of the prior art, and are not described herein again.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate an embodiment of the utility model and, together with the description, serve to explain the utility model and not to limit the utility model. In the drawings:
FIG. 1 is a schematic structural diagram of a cover plate assembly according to an embodiment of the present invention;
FIG. 2 is a top view of a cover plate assembly according to an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of an upper plastic according to an embodiment of the present invention;
FIG. 4 is a front view of an upper plastic according to an embodiment of the present invention;
fig. 5 is a top view of the upper plastic according to the embodiment of the utility model.
Description of reference numerals:
a cover plate assembly 100,
A top cover plate 10, a riveting block 20, a pole column 30,
An upper plastic 40, a pole hole 40a, a first positioning part 41, a reinforcing part 43, a bulge part 431, a reinforcing rib 432, an upper plastic body 44,
A lower plastic 50.
Detailed Description
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
The cover plate assembly 100 for a battery cell according to an embodiment of the present invention includes: top cover plate 10, riveting piece 20, go up plastic 40 and utmost point post 30.
Referring to fig. 1 and 3, the upper plastic 40 is clamped between the top cover plate 10 and the riveting block 20, the upper plastic 40 is provided with a first positioning portion 41, a second positioning portion (not shown in the figure) and a reinforcing portion 43, the first positioning portion 41 is used for positioning the upper plastic 40 and the top cover plate 10, the second positioning portion is used for positioning the upper plastic 40 and the riveting block 20, and the post 30 sequentially penetrates through the top cover plate 10, the upper plastic 40 and the riveting block 20, so that the top cover plate 10, the riveting block 20, the upper plastic 40 and the post 30 can be fixedly connected in a riveting manner.
In the riveting process, the first positioning part 41 can be used for positioning and matching the upper plastic 40 and the top cover plate 10, and the second positioning part can be used for positioning and matching the upper plastic 40 and the riveting block 20, so that the top cover plate 10, the riveting block 20 and the upper plastic 40 are conveniently positioned and matched, and the riveting difficulty is reduced.
It should be noted that the reinforcing portion 43 may be disposed on the first positioning portion 41 and/or the second positioning portion according to design requirements, as shown in fig. 3, the upper plastic 40 is provided with the first positioning portion 41, the structure of the second positioning portion may be the same as that of the first positioning portion 41, and the present application describes the case where the reinforcing portion 43 is disposed on the first reinforcing portion 43.
Further, the reinforcing portion 43 is only disposed on the first positioning portion 41, so that the reinforcing portion 43 improves the structural strength of the first positioning portion 41, thereby preventing damage caused by insufficient strength of the first positioning portion 41 during the riveting process, and improving the structural reliability of the upper plastic 40; the reinforcing part 43 is only arranged on the second positioning part, so that the structural strength of the second positioning part is improved through the reinforcing part 43, the damage caused by insufficient strength of the second positioning part in the riveting process is prevented, and the structural reliability of the upper plastic 40 is improved. Of course, the reinforcing portion 43 may also be provided on both the first positioning portion 41 and the second positioning portion to improve the structural strength of the first positioning portion 41 and the second positioning portion.
It is understood that the upper plastic 40 is generally made of PP (polypropylene) or PPs (polyphenylene sulfide) plastic. In the riveting process, the upper plastic 40 may be cracked by stress, especially in the area where the first positioning portion 41 and the second positioning portion are disposed on the upper plastic 40. This application promotes the structural strength of first location portion 41, second location portion department through reinforcement 43 through setting up reinforcement 43 to avoid riveting in-process upper plastic 40 to appear the problem of fracture in first location portion 41, second location portion department effectively. It should be noted that, when the upper plastic 40 cracks, the resistance value changes, which affects the safety performance of the battery cell.
According to the cover plate assembly 100 of the embodiment of the utility model, the upper plastic 40 is respectively matched with the top cover plate 10 and the riveting block 20 in a positioning manner through the first positioning part 41 and the second positioning part, so that the riveting difficulty of the pole 30 is reduced, meanwhile, the structural strength of the first positioning part 41 and the second positioning part is improved through the reinforcing part 43, the problem that the positions of the upper plastic 40 provided with the first positioning part 41 and the second positioning part are cracked in the riveting process is prevented, and the reliability of the cover plate assembly 100 is improved.
As shown in fig. 3, in some embodiments of the present invention, the upper plastic 40 includes: go up plastic body 44, go up plastic body 44 and be equipped with utmost point post hole 40a, utmost point post hole 40a is used for supplying utmost point post 30 to pass.
With reference to fig. 1, 2 and 3, the terminal post 30 needs to sequentially penetrate through the top cover plate 10, the upper plastic 40 and the riveting block 20 from bottom to top, that is, the top cover plate 10 and the riveting block 20 are also provided with a through hole structure for the terminal post 30 to pass through, and the plurality of hole structures are correspondingly arranged.
Referring to fig. 3, the first positioning portion 41 is provided on the outer side in the circumferential direction of the pole hole 40a, and the first positioning portion 41 is provided at an interval from the pole hole 40 a. Wherein, the second positioning portion (not shown in the figure) and the pole hole 40a are arranged at intervals, and the arrangement position of the second positioning portion can be set according to the requirement.
In some embodiments of the present invention, the reinforcing portion 43 includes a raised portion 431, and the raised portion 431 is disposed on a side of the upper plastic body 44 corresponding to the first positioning portion 41 and facing away from the top cover plate 10, so as to avoid the raised portion 431 from affecting the positioning and matching effect of the first positioning portion 41 on the upper plastic 40 and the top cover plate 10. The raised portion 431 may also be disposed on one side of the upper plastic body 44 corresponding to the second positioning portion and departing from the riveting block 20, so as to avoid the raised portion 431 from affecting the positioning effect of the first positioning portion 41 on the upper plastic 40 and the riveting block 20. Of course, the raised portion 431 may also be provided at positions corresponding to the first positioning portion 41 and the second positioning portion at the same time.
In a further embodiment of the present invention, as shown in fig. 3, the first positioning portion 41 is configured as a first positioning hole, a protrusion 431 is disposed around the first positioning hole, and the protrusion 431 is disposed on a side of the upper plastic body 44 facing away from the top cover plate 10, so that the protrusion 431 disposed around the first positioning hole can improve the structural strength of the first positioning hole, prevent the first positioning hole from cracking during riveting, and improve the reliability of the cover plate assembly 100 during assembling.
It is understood that when the first positioning portion 41 is configured as a first positioning hole, the first positioning hole penetrates the upper plastic body 44 in the thickness direction, and a positioning engagement structure engaged with the first positioning hole is provided on the top cover plate 10, such as: the first positioning boss, the first positioning bulge and the like, and the shape and the size of the positioning matching structure are matched with the first positioning hole. Referring to fig. 3, when the first positioning hole is a circular hole, the positioning structure is a circular boss to ensure the positioning effect between the upper plastic 40 and the top cover plate 10.
Referring to fig. 3, the swelling part 431 is configured as an annular protrusion, and the swelling part 431 is disposed around the edge of the first positioning hole, so that structural strength at the edge of the first positioning hole may be improved. Wherein, the inner peripheral surface of annular arch sets up with the internal wall parallel and level of first locating hole.
In some embodiments of the present invention, the second positioning portion is configured as a second positioning hole, the raised portion 431 is disposed around the second positioning hole, and the raised portion 431 is located on a side of the upper plastic body 44 facing away from the riveting block 20, so that the structural strength of the second positioning hole can be improved by the raised portion 431 disposed around the second positioning hole, the problem of cracking at the second positioning hole during the riveting process can be prevented, and the reliability of the assembling process of the cover plate assembly 100 can be improved.
It is understood that when the second positioning portion is configured as a second positioning hole, the second positioning hole penetrates through the upper plastic body 44 along the thickness direction, and the riveting block 20 is provided with a positioning and matching structure matched with the second positioning hole, such as: the shape and the size of the positioning matching structure are matched with the second positioning hole.
In some embodiments of the present invention, the reinforcing portion 43 further includes a reinforcing rib 432, and the reinforcing rib 432 is disposed on an inner wall surface of the positioning hole, so that the structural strength of the positioning hole can be further improved by the reinforcing rib 432. The positioning hole may be a first positioning hole or a second positioning hole, and the inner wall surfaces of the positioning holes configured as hole structures in the first positioning portion 41 and the second positioning portion may be provided with the reinforcing rib 432. It is to be understood that the first positioning portion 41 and the second positioning portion may be configured as a hole structure, and may also be configured as other positioning structures, and the reinforcing rib 432 in the present application is arranged on the hole structure. Because the hole structure needs to run through upper plastic body 44 in the thickness direction to the structural strength that leads to hole structure department is lower, can promote hole structure's structural strength through setting up strengthening rib 432 at the inner wall surface.
As shown in fig. 3, in a further embodiment of the present invention, the rib 432 extends from one end of the inner wall surface away from the protrusion 431 to an inner edge of the protrusion 431, and the rib 432 corresponds to the positioning hole and the protrusion 431 in the thickness direction of the upper plastic body 44, so that the structural strength of the protrusion 431 and the positioning hole can be further improved.
Among them, the extending direction of the reinforcing rib 432 is the same as the extending direction of the positioning hole, and when the positioning hole is configured as a circular hole, the reinforcing rib 432 extends in the axial direction of the circular hole on the inner wall surface and corresponds to the positioning hole and the swelling portion 431. It is understood that, when the first positioning portion 41 and the second positioning portion are configured as positioning holes, the positioning engagement structures on the top cover plate 10 and the riveting block 20 are configured as positioning bosses, and the positioning bosses extend into the positioning holes to achieve positioning.
In some embodiments of the present invention, the positioning boss is provided with a groove, the groove corresponds to the stiffener 432, and when the positioning boss is matched with the positioning hole, the stiffener 432 can be located in the groove. The extending direction of the groove is consistent with the extending direction of the reinforcing rib 432, so that interference between the reinforcing rib 432 and the positioning boss is avoided, the positioning boss is prevented from entering the positioning hole, and when the positioning hole is matched with the positioning boss, the groove and the reinforcing rib 432 are matched to play a role in preventing rotation, namely, the positioning boss is prevented from rotating relative to the positioning hole.
As shown in fig. 3, in some embodiments of the present invention, there are a plurality of the ribs 432, and the plurality of ribs 432 are spaced apart in the circumferential direction of the inner wall surface, so that the structural strength of the positioning hole can be improved. Wherein, a plurality of strengthening ribs 432 are evenly arranged at intervals in the circumferential direction of the inner wall surface, thereby can prevent the problem of fracture from appearing at the positioning hole because of local weak strength.
In some embodiments of the present invention, the reinforcing portion 43 further includes a reinforcing rib 432, the reinforcing rib 432 is disposed on the raised portion 431, and the extending direction of the reinforcing rib 432 is the same as the extending direction of the raised portion 431, so that the reinforcing effect of the reinforcing portion 43 on the first positioning portion 41 and the second positioning portion is ensured by further improving the structural strength at the raised portion 431 through the reinforcing rib 432.
In some embodiments of the present invention, the upper plastic body 44 is provided with a plurality of first positioning portions 41 and a plurality of second positioning portions, the plurality of first positioning portions 41 and the plurality of second positioning portions are disposed around the pole hole 40a, and the first positioning portions 41 and the second positioning portions are disposed at intervals on the projection of the upper plastic body 44 in the thickness direction, so as to ensure the positioning effect of the upper plastic body 44, the top cover plate 10 and the riveting block 20, and make the periphery of the pole hole 40a uniformly stressed in the riveting process, thereby avoiding the pole hole 40a from cracking.
As shown in fig. 3, the upper plastic body 44 is provided with two first positioning portions 41, and the two first positioning portions 41 are provided at intervals in the circumferential direction of the pole hole 40 a. The number of the first positioning portions 41 and the second positioning portions may be adjusted according to design requirements, and is not limited herein.
In some embodiments of the present invention, the cover plate assembly 100 further includes a lower plastic 50, the lower plastic 50 is disposed at a lower portion of the top cover plate 10, and the lower plastic 50 is also provided with a through hole through which the pole 30 passes.
According to the battery cell of the embodiment of the present invention, the battery cell includes the above-mentioned cover plate assembly 100. The cover plate assembly 100 is convenient to assemble and high in reliability, the problem that the upper plastic 40 cracks in the riveting process can be solved, the privacy resistance value change caused by the cracking of the upper plastic 40 is avoided, and the use safety of the battery cell is guaranteed.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (10)
1. A cover plate assembly for a battery cell, comprising:
a roof panel (10);
a riveting block (20);
the upper plastic (40) is clamped between the top cover plate (10) and the riveting block (20), the upper plastic (40) is provided with a first positioning part (41), a second positioning part and a reinforcing part (43), the first positioning part (41) is used for positioning the upper plastic (40) and the top cover plate (10), the second positioning part is used for positioning the upper plastic (40) and the riveting block (20), and the reinforcing part (43) is arranged on the first positioning part (41) and/or the second positioning part;
the terminal post (30), the terminal post (30) is sequentially arranged on the top cover plate (10) in a penetrating manner, the upper plastic (40) and the riveting block (20).
2. The cover plate assembly for a battery cell of claim 1, wherein the upper plastic (40) comprises: go up plastic body (44), go up plastic body (44) and be equipped with utmost point post hole (40a), utmost point post hole (40a) are used for supplying utmost point post (30) pass.
3. The cover plate assembly for a battery cell according to claim 2, wherein the reinforcement portion (43) comprises a raised portion (431), and the raised portion (431) corresponds to the first positioning portion (41) and is located on a side of the upper plastic body (44) facing away from the top cover plate (10); and/or the bulge part (431) corresponds to the second positioning part and is positioned on one side of the upper plastic body (44) departing from the riveting block (20).
4. The cover plate assembly for a battery cell according to claim 3, characterized in that the first positioning portion (41) is configured as a first positioning hole, the bulge (431) is arranged around the first positioning hole, and the bulge (431) is located on the side of the upper plastic body (44) facing away from the top cover plate (10).
5. The cover plate assembly for a battery cell according to claim 3, characterized in that the second positioning portion is configured as a second positioning hole, the raised portion (431) is arranged around the second positioning hole, and the raised portion (431) is located on the side of the upper plastic body (44) facing away from the riveting block (20).
6. The cover plate assembly for a battery cell according to claim 4 or 5, wherein the reinforcement portion (43) further comprises a reinforcing rib (432), and the reinforcing rib (432) is provided on an inner wall surface of the positioning hole.
7. The cover plate assembly for a battery cell according to claim 6, wherein the reinforcing ribs (432) extend from one end of the inner wall surface away from the bulge (431) to an inner edge of the bulge (431).
8. The cover plate assembly for a battery cell according to claim 6, wherein the reinforcing ribs (432) are provided in plurality, and the plurality of reinforcing ribs (432) are provided at intervals in a circumferential direction of the inner wall surface.
9. The cover plate assembly for a battery cell according to claim 3, wherein the reinforcing part (43) further comprises a reinforcing rib (432), the reinforcing rib (432) is provided on the raised part (431), and the extending direction of the reinforcing rib (432) is the same as the extending direction of the raised part (431).
10. A battery cell, characterized in that it comprises a cover plate assembly for a battery cell according to any of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122617931.4U CN216120511U (en) | 2021-10-28 | 2021-10-28 | Cover plate assembly for battery cell and battery cell with cover plate assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122617931.4U CN216120511U (en) | 2021-10-28 | 2021-10-28 | Cover plate assembly for battery cell and battery cell with cover plate assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216120511U true CN216120511U (en) | 2022-03-22 |
Family
ID=80710834
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122617931.4U Active CN216120511U (en) | 2021-10-28 | 2021-10-28 | Cover plate assembly for battery cell and battery cell with cover plate assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216120511U (en) |
-
2021
- 2021-10-28 CN CN202122617931.4U patent/CN216120511U/en active Active
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