CN218351682U - Cover plate and battery comprising same - Google Patents
Cover plate and battery comprising same Download PDFInfo
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- CN218351682U CN218351682U CN202222598477.7U CN202222598477U CN218351682U CN 218351682 U CN218351682 U CN 218351682U CN 202222598477 U CN202222598477 U CN 202222598477U CN 218351682 U CN218351682 U CN 218351682U
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- cover plate
- riveting
- boss
- base
- 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 an apron and contain its battery, the apron is used for the assembly of battery. The cover plate comprises a positive terminal and a base, the positive terminal comprises a body and a riveting part, the outer edge radial dimension of the body is larger than that of the riveting part, the body and the riveting part form a step part at the outer edge, the riveting part penetrates through the base, and the base is internally provided with a connecting part which is mutually abutted and matched with the step part. Through this kind of structure for the body of positive terminal forms step portion with riveting portion, and connecting portion and the mutual butt cooperation of step portion on the base, under the condition that riveting portion's the outside was located to the base cover, through applying riveting pressure to the body, make riveting portion outwards overturn and butt in the base, through the spacing cooperation of base, also can guarantee riveted precision and the holistic stability of riveting back shroud when making riveting pressure too big.
Description
Technical Field
The utility model relates to a technical field of battery, in particular to apron and contain its battery.
Background
With the increasing maturity of lithium battery technology, lithium batteries are widely used in various fields as power batteries. The large cylindrical lithium battery in the lithium battery is called one of the important directions of power battery enterprises due to the advantages of high energy density, high safety and low cost.
The large cylindrical battery generally comprises a shell and positive and negative electrode cover plate assemblies, wherein the shell provides a closed space for accommodating the electrode assemblies and electrolyte, and the electric energy of the battery is led out of the closed space from the closed space through positive and negative electrode poles of the cover plate assemblies; the existing top cover plate component comprises an anode pole, a sealing ring and an upper insulating part and a lower insulating part, and an anode pole riveting area is arranged on the outer edge of the anode pole. During specific assembly, the positive pole post assembly is assembled in a positive pole post leading-out hole of the shell according to a certain sequence, the positive pole post assembly is compressed to a certain position through external force, and a positive pole post riveting area is riveted to the lower insulating part through a riveting process, so that the purpose of sealing and fixing is achieved. However, in actual practice, the caulking pressure is too high, and a large amount of deformation tends to occur at the portion connected to the caulking portion, thereby reducing the accuracy of caulking and the stability of the entire caulk.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to provide an apron and contain its battery in order to overcome among the prior art riveting pressure and cause the riveting precision to hang down and rivet the whole unstable defect of back shroud greatly easily.
The utility model discloses a solve above-mentioned technical problem through following technical scheme:
the utility model provides a apron for the assembly of battery, battery include electric core, and the apron includes positive terminal, its characterized in that: the positive terminal comprises a body and a riveting part, the radial size of the outer edge of the body is larger than that of the outer edge of the riveting part, and a step part is formed at the outer edge of the body and the riveting part; the cover plate further comprises a base, the riveting portion is arranged on the base in a penetrating mode, the base is provided with a connecting portion, and the connecting portion and the step portion are mutually abutted and matched. In this scheme, a apron for assembling contain battery of electric core includes positive terminal and base, and positive terminal includes body and riveting portion, and the outside edge radial dimension of body is greater than the outside edge radial dimension of riveting portion, and body and riveting portion form step portion in outside edge, and the base is inside to be seted up with the mutual butt complex connecting portion of step portion. Through this kind of structure for the body of positive terminal forms step portion with riveting portion, and connecting portion and the mutual butt cooperation of step portion on the base, under the condition that riveting portion's the outside was located to the base cover, through applying riveting pressure to the body, make riveting portion outwards overturn and butt in the base, through the spacing cooperation of base, also can guarantee riveted precision and the holistic stability of riveting back shroud when making riveting pressure too big.
Preferably, a first boss is arranged on the base, the connecting portion is connected to the first boss and extends towards the body, and the first boss extends towards the electric core relative to the connecting portion.
In this scheme, riveting back connecting portion are used for with step portion butt, play spacing fixed effect, and riveting portion expandes to radial direction at the effect of pressure, and spacing fixed is carried out to the first boss of rethread, not only can increase riveted precision, also can increase the stability of structure.
Preferably, the riveting portion is away from one end of the body, extends outwards along the radial direction of the body in a riveting state and abuts against the first boss.
In this scheme, when the outside of riveting portion is located to the base cover, exert riveting pressure to the body for the riveting portion keeps away from the one end of body and outwards extends along the radial direction of body, and the butt in first boss, utilizes the extension of riveting portion and first boss spacing, makes to be connected between riveting portion after the riveting and the base inseparabler, and then makes the apron after the riveting whole more stable.
Preferably, the positive terminal further comprises a fixing plate, the fixing plate is arranged on one side, far away from the electric core, of the body, and the radial size of the fixing plate is larger than that of the body.
In this scheme, set up the fixed plate through the one side of keeping away from electric core at the body for the fixed plate can support the component, is unlikely to make the body protrusion of positive terminal, can play the spacing effect of protection.
The preferred, apron is still including lamina tecti and sealing member, and the lamina tecti encircles and sets up in the outside of body, and the lamina tecti is kept away from the one side of electric core and is connected with the fixed plate to set up annular groove at the inner fringe department of keeping away from one side of electric core, the sealing member sets up in annular groove.
In this scheme, the annular groove is used for placing the sealing washer and carries on spacingly to the sealing washer, through this kind of setting, deformation that can effectual control sealing washer, the sealed effect of reinforcing sealing washer.
Preferably, the cover plate further comprises an upper insulating plate, the upper insulating plate is arranged between the fixed plate and the top cover plate, and a chamfer is formed at the inner edge of one side, away from the electric core.
In this scheme, through the mode that sets up the chamfer on last insulation board for sealing washer and last insulation board laminating are favorable to the packing of sealing washer material after the sealing washer compression, and the density in increase insulating clearance further increases leakproofness and insulating nature.
Preferably, the outer edge of the upper insulating plate on one side far away from the battery core is provided with a second boss matched with the outer diameter of the fixing plate, and the outer edge on one side close to the battery core is provided with a third boss matched with the top cover plate.
In this scheme, it is spacing that the second boss on the upper insulation board is used for the installation of fixed plate, and second recess cooperation on third boss and the lamina tecti is spacing to the lamina tecti installation, through the setting of second boss and third boss, has guaranteed jointly anodal terminal with other component complex concentricity to and improve the holistic stability of the apron after the equipment.
Preferably, the cover plate further comprises a lower insulating plate, the lower insulating plate is arranged on the outer side of the body in a surrounding mode, and the top cover plate is abutted to the base through the lower insulating plate.
In this scheme, lower insulation board sets up in the outside of body, and the lamina tecti is through lower insulation board butt in base, further increases insulating nature.
Preferably, the lower insulation board extends to the direction of keeping away from electric core at the inward flange of keeping away from one side of electric core and forms the fourth boss, and the height of fourth boss is less than the hole height of lamina tecti, and the lamina tecti passes through fourth boss butt in the body.
In this scheme, the inward flange of lower insulation board in the one side of keeping away from electric core extends to the direction of keeping away from electric core and forms the fourth boss, and the lamina tecti passes through fourth boss and this body coupling. The height of the fourth boss is smaller than the inner hole height of the top cover plate, so that the area lower than the inner hole height can be filled with the compressed sealing ring, a gap between the positive terminal and the shell can be prevented, and the voltage resistance level is improved.
A battery comprises the upper cover plate and a battery core, wherein the cover plate is electrically connected with the battery core and covers the battery core to form a battery loop and protect the battery core.
In this scheme, the battery includes above apron and electric core, and the apron is connected with electric core electricity and is covered on electric core to form battery circuit and protection electric core. Through adopting above-mentioned apron, this battery has improved stability and leakproofness, has reduced the possibility of weeping, has promoted the yields and the security of electric core.
The utility model discloses an actively advance the effect and lie in: a apron for assembling electric core includes positive terminal and base, and positive terminal includes body and riveting portion, and the body forms step portion with the riveting portion, and connecting portion and the mutual butt cooperation of step portion on the base. Under the condition that riveting portion's the outside is located to the base cover, through applying riveting pressure to the body for riveting portion outwards overturns and butt in the base, through the spacing cooperation of base, also can guarantee riveted precision and the holistic stability of riveting back shroud when making riveting pressure too big.
Drawings
Fig. 1 is a schematic structural diagram (a) of a battery cell, a casing and a cover plate according to an embodiment of the present invention.
Fig. 2 is a schematic structural diagram (ii) of the battery cell, the casing and the cover plate according to an embodiment of the present invention.
Fig. 3 is a schematic enlarged view of a part a of a cover plate according to an embodiment of the present invention.
Fig. 4 is a schematic structural diagram of a positive terminal according to an embodiment of the present invention.
Fig. 5 is a schematic cross-sectional view of a positive terminal before riveting according to an embodiment of the present invention.
Fig. 6 is a schematic cross-sectional view of a positive terminal after riveting according to an embodiment of the present invention.
Fig. 7 is a schematic structural diagram of a base according to an embodiment of the present invention.
Fig. 8 is a schematic cross-sectional view of a base according to an embodiment of the present invention.
Fig. 9 is a schematic structural view of a top cover plate according to an embodiment of the present invention.
Fig. 10 is a schematic cross-sectional view of a top cover plate according to an embodiment of the present invention.
Fig. 11 is a schematic structural view of an upper insulating plate according to an embodiment of the present invention.
Fig. 12 is a schematic cross-sectional view of an upper insulating plate according to an embodiment of the present invention.
Fig. 13 is a schematic structural diagram of a lower insulating plate according to an embodiment of the present invention.
Fig. 14 is a partial structural schematic view of a cover plate according to another embodiment of the present invention.
Description of reference numerals:
The lower cover plate 210
Riveting part 303
Upper insulating plate 400
Lower insulating plate 700
Detailed Description
The present invention will be more clearly and completely described in the following detailed description of the preferred embodiments, which is given by way of illustration only, and is not intended to limit the present invention.
As shown in fig. 1 and fig. 2, an embodiment of the present invention includes a battery cell 100, a casing 200, a lower cover plate 210 and an upper cover plate, the casing 200 provides a sealed space for accommodating the battery cell 100 and electrolyte, and electric energy of the battery is led out of the sealed space through positive and negative poles of the cover plate assembly; the upper cover plate is specifically composed of a positive terminal 300, an upper insulating plate 400, a sealing ring 500, a top cover plate 600, a lower insulating plate 700, an electrical connection sheet 800 and a base 900.
As shown in fig. 2 and fig. 3, which are specific assembly diagrams of the upper cover plate in this embodiment, the positive terminal 300, the upper insulating plate 400, the sealing ring 500, the top cover plate 600, the lower insulating plate 700, and the base 900 are sequentially disposed from top to bottom. The C direction is an upper direction, that is, a direction away from the battery cell 100 in this embodiment, and the B direction is a lower direction, that is, a direction close to the battery cell 100 in this embodiment.
As shown in fig. 4, 5, 7 and 8, the positive electrode terminal 300 and the base 900 are schematically configured. The positive terminal 300 specifically includes a body 302 and a riveting portion 303, the outside edge radial dimension of the body 302 is greater than the outside edge radial dimension of the riveting portion 303, a step portion 304 is formed at the outside edge of the body 302 and the riveting portion 303, the riveting portion 303 is inserted into the base 900, a connecting portion 901 is arranged on the base 900, and the connecting portion 901 and the step portion 304 are mutually abutted and matched.
Specifically, the body 302 of the positive terminal 300 is a cylindrical structure, the riveting portion 303 coincides with the central axis of the body 302, the riveting portion 303 extends downward along the end surface of the body 302 close to the battery cell, the diameter of the body 302 is greater than the diameter of the outer ring of the riveting portion 303, and an annular step portion 304 is formed at the joint after the riveting portion 303 is connected with the body 302. Meanwhile, the base 900 is also of a circular cylindrical structure, the riveting portion 303 penetrates through the base 900, a connecting portion 901 is arranged on the base 900, the connecting portion 901 and the step portion 304 are mutually abutted and matched, namely when the base 900 moves upwards at the positive terminal 300, the connecting portion 901 of the base 900 is limited by the step portion 304, and a plane of the base 900 abuts against the body 302. In the state that base 900 supports body 302, through applying riveting pressure to body 302 for riveting portion 303 outwards overturns, as shown in fig. 6, riveting portion 303 can butt in base 900 after the upset this moment, through the spacing cooperation of base 900 and step portion 304, also can guarantee riveted precision and the holistic stability of riveting back shroud when making riveting pressure too big.
In other embodiments, the body 302, the riveting portion 303, and the base 900 of the positive terminal 300 may be formed in other shapes, such as a quadrilateral structure, and in the case of forming other shapes, the body 302 and the riveting portion 303 may form the step portion 304, and the problem that the riveting precision is low and the whole riveting rear cover plate is unstable due to the large riveting pressure and the limit fit between the base 900 and the limit seat is solved.
As shown in fig. 3, 7, and 8, the base 900 is provided with a first boss 902, the connection portion 901 is connected to the first boss 902 and extends in the direction of the body 302, and the first boss 902 extends in the direction of the battery cell 100 relative to the connection portion 901. Specifically, structurally, base 900 is established by two ring posts and is formed, connecting portion 901 is interior ring post, first boss 902 is exterior ring post, connecting portion 901 coincides with the central axis of first boss 902, connecting portion 901 and first boss 902 are at the one side parallel and level of keeping away from electric core 100, the thickness of first boss 902 is greater than the thickness of connecting portion 901, it connects in first boss 902 and extends to the direction of body 302 to finally form connecting portion 901, first boss 902 extends to the direction of electric core 100 for connecting portion 901. In the assembling process, the inner circular ring surface of the connecting portion 901 is sleeved on the outer circular ring surface of the riveting portion 303, the base 900 moves on the positive terminal 300, the position is limited by the step portion 304, the base 900 is abutted to the body 302, riveting pressure is applied to the body 302, one end of the riveting portion 303, far away from the body, extends outwards along the radial direction of the body, as shown in fig. 6, the riveting portion 303 after extending extends outwards along the radial direction of the body, and is abutted to the inner circular ring surface of the first boss 902. With such an arrangement, the connecting portion 901 is used for abutting against the step portion 304 to perform a limiting and fixing function, the riveting portion 303 is expanded in a radial direction under the action of pressure, and then the first boss 902 performs limiting and fixing, so that not only can the riveting precision be increased, but also the structural stability can be increased.
Certainly, in other embodiments, the structure of the base 900 does not have to be composed of two circular rings, the first boss 902 and the connecting portion 901 may also be processed on one circular ring by a machining method, meanwhile, the first boss 902 is not necessarily located at the edge of the base 900, and the connecting portions 901 may also be disposed on both sides of the first boss 902, where the connecting portion 901 close to the body 302 is connected to the riveting portion 303, and the connecting portion 901 far from the body 302 is connected to the electrical connection sheet 800.
As shown in fig. 5, the riveting portion 303 is disposed at an edge of the body 302 and forms a first groove 305 with the body 302, and the battery cell 100 is disposed in the first groove 305 and abuts against the body 302. Specifically, in this embodiment, riveting portion 303 extends along one side of body 302 close to battery cell 100, where riveting portion 303 is disposed at the edge of body 302, that is, riveting portion 303 is a thin-wall circular ring structure, riveting portion 303 gradually decreases along the direction thickness of battery cell 100, when riveting pressure is applied to body 302, riveting portion 303 extends outward along the radial direction of body 302, riveting portion 303 after extending abuts against the inner circular ring surface of first boss 902, and the position limitation of first boss 902 is utilized, so that one end of riveting portion 303, which is far away from body 302, is riveted to one end of first boss 902 and is flush with first boss 902, and first groove 305 is formed between one end of riveting portion 303, which is close to body 302, and body 302. The first groove 305 is favorable for flanging the riveting portion 303, and can effectively prevent the flanging from being cracked due to outward extension. Certainly, in other embodiments, as shown in fig. 14, the turned-over edge of the riveting portion 303 may just abut against the inner circular ring surface of the first boss 902 after riveting, so that the whole body 302 and the first boss 902 are flush with each other at a side close to the battery cell 100, the connection of the whole cover plate is more compact, the shake of the whole battery after the assembly of the battery cell 100 is reduced, and the stability of the whole structure is increased.
As shown in fig. 3, fig. 4 and fig. 5, the positive terminal 300 further includes a fixing plate 301, the fixing plate 301 is disposed on a side of the body 302 away from the battery cell 100, and a radial dimension of the fixing plate 301 is greater than a radial dimension of the body 302. Specifically, the body 302 of the positive electrode terminal 300 is provided with the fixing plate 301, the center axis of the fixing plate 301 coincides with the center axis of the body 302, and the radial dimension of the fixing plate 301 is larger than the radial dimension of the body 302. The material of the fixing plate 301 is the same as that of the body 302, and the fixing plate 301 may be integrally processed with the body 302 or may be separately processed and assembled. Through set up fixed plate 301 in one side that body 302 kept away from electric core 100 for fixed plate 301 can support the component, is unlikely to make the body 302 of positive terminal 300 protruding, can play the spacing effect of protection.
As shown in fig. 3, 9 and 10, the cover plate further includes a top cover plate 600 and a sealing member, the top cover plate 600 is disposed around the outer side of the body 302, one side of the top cover plate 600 away from the battery cell 100 is connected to the fixing plate 301, an annular groove 601 is disposed at an inner edge of one side away from the battery cell 100, and the sealing member is disposed in the annular groove 601. Specifically, the top cover plate 600 is a sheet-shaped circular ring structure, the outer side of the body 302 is sleeved with an inner circular ring, one surface of the top cover plate, which is far away from the battery cell 100, is connected to the fixing plate 301, the inner edge of one side, which is far away from the battery cell 100, is provided with an annular groove 601, the annular groove 601 is used for placing the sealing ring 500 and limiting the sealing ring 500, and through the arrangement, the deformation of the sealing ring 500 can be effectively controlled, and the sealing effect of the sealing ring 500 is enhanced. In other embodiments, the top cover plate 600 may also be an end surface of the housing 200, that is, the top cover plate 600 is integrally processed with the housing 200, and during the assembly process, the fixing plate 301 may be installed on the body 302 of the positive terminal 300, the sealing ring 500 is then sleeved on the body 302, the top cover plate 600 on the housing 200 is then sleeved on the outer side of the body 302, and the sealing ring 500 is clamped into the annular groove 601.
As shown in fig. 3, 11 and 12, the cover plate further includes an upper insulating plate 400, the upper insulating plate 400 is disposed between the fixing plate 301 and the top cover plate 600, and a chamfer 403 is disposed at an inner edge of a side away from the battery cell 100. Specifically, the upper insulating plate 400 has an annular structure, and is disposed between the fixing plate 301 and the top cover plate 600 to increase insulating performance. Simultaneously, the inner edge of the upper insulating plate 400 far away from one side of the battery cell 100 is provided with a chamfer 403, when the sealing ring 500 is arranged in the annular groove 601, the sealing ring 500 abuts against the upper insulating plate 400 at the same time, and the chamfer 403 is arranged on the upper insulating plate 400, so that the sealing ring 500 is attached to the upper insulating plate 400, the filling of the sealing ring 500 material after the sealing ring 500 is compressed is facilitated, the density of an insulating gap is increased, and the sealing performance and the insulating performance are further improved.
Further, the upper insulating plate 400 is provided with a second boss 401, which is matched with the outer diameter of the fixing plate 301, at the outer edge of the side far away from the battery cell 100, and is provided with a third boss 402, which is matched with the top cover plate 600, at the outer edge of the side near to the battery cell 100. Specifically, the second boss 401 on the upper insulating plate 400 is used for mounting and limiting the fixing plate 301, the third boss 402 is matched with the second groove 602 on the top cover plate 600, the top cover plate 600 is mounted and limited, and the concentricity of the positive terminal 300 matched with other elements is ensured through the arrangement of the second boss 401 and the third boss 402, and the overall stability of the assembled cover plate is improved.
As shown in fig. 3 and 13, the cap plate further includes a lower insulating plate 700, the lower insulating plate 700 is disposed around the outer side of the body 302, and the top cap plate 600 abuts against the base 900 through the lower insulating plate 700. Specifically, the lower insulating plate 700 has a sheet-like annular structure, is provided between the top cap plate 600 and the base 900, and further increases the insulating property, and the top cap plate 600 abuts against the base 900 through the lower insulating plate 700. Further, the inner edge of the lower insulating plate 700 on the side far away from the battery cell 100 extends to the direction far away from the battery cell 100 to form a fourth boss 701, the height of the fourth boss 701 is smaller than the inner hole height of the top cover plate 600, and the top cover plate 600 abuts against the body 302 through the fourth boss 701. Specifically, the edge of the inner ring of the lower insulating plate 700 extends upward at a side away from the battery cell 100 to form a fourth boss 701, and the inner ring of the top cover plate 600 abuts against the fourth boss 701 and is connected to the body 302 through the fourth boss 701. The height of the fourth boss 701 is smaller than the inner hole height of the top cover plate 600, so that the region lower than the inner hole height can be filled with the compressed sealing ring 500, a gap between the positive terminal 300 and the housing 200 can be prevented, and the withstand voltage level can be improved.
The cover plate provided by this embodiment, when being installed, the fixing plate 301 and the positive terminal 300 are sequentially placed from top to bottom, the sealing ring 500 is sleeved on the body 302 of the positive terminal 300 from top to bottom, the upper insulating plate 400, the top cover plate 600, the lower insulating plate 700 and the base 900, wherein the spacing between the fixing plate 301 and the upper insulating plate 400 is realized by the second boss 401, the spacing between the sealing ring 500 and the upper insulating plate 400 is realized by the chamfer 403 of the upper insulating plate 400, the spacing between the upper insulating plate 400 and the top cover plate 600 is realized by the third boss 402, and the spacing between the lower insulating plate 700 and the top cover plate 600 is realized by the fourth boss 701. Then, a press-fitting process is performed on the positive electrode terminal 300, and a press-fitting force is applied to the rivet portion 303 without the stud being turned over, so that the rivet portion 303 abuts against the first boss 902.
The present embodiment further provides a battery, which includes the above cover plate and the battery cell 100, wherein the cover plate is electrically connected to the battery cell 100 and covers the battery cell 100 to form a battery circuit and protect the battery cell 100. Through adopting above-mentioned apron, this battery has improved stability and leakproofness, has reduced the possibility of weeping, has promoted the yields and the security of electric core 100.
Although specific embodiments of the present invention have been described above, it will be understood by those skilled in the art that this is by way of example only and that the scope of the invention is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the spirit and the principles of the present invention, and these changes and modifications are all within the scope of the present invention.
Claims (10)
1. A cover plate for assembly of a battery, the battery including a cell, the cover plate including a positive terminal, characterized in that:
the positive terminal comprises a body and a riveting part, the radial size of the outer edge of the body is larger than that of the outer edge of the riveting part, and a step part is formed at the outer edge of the body and the riveting part;
the cover plate further comprises a base, the riveting portion penetrates through the base, a connecting portion is arranged on the base, and the connecting portion and the step portion are mutually abutted and matched.
2. The cover plate of claim 1, wherein the base is provided with a first boss, the connecting portion is connected to the first boss and extends in the direction of the body, and the first boss extends in the direction of the battery cell relative to the connecting portion.
3. The cover plate according to claim 2, wherein the rivet portion extends outward in a radial direction of the body in a riveted state away from one end of the body and abuts against the first boss.
4. The cover plate of claim 1, wherein the positive terminal further comprises a fixing plate, the fixing plate is disposed on a side of the body away from the battery core, and a radial dimension of the fixing plate is greater than a radial dimension of the body.
5. The cover plate of claim 4, further comprising a top cover plate and a sealing element, wherein the top cover plate is disposed around the outer side of the body, one side of the top cover plate away from the battery cell is connected to the fixing plate, an annular groove is formed at an inner edge of one side of the top cover plate away from the battery cell, and the sealing element is disposed in the annular groove.
6. The cover plate of claim 5, further comprising an upper insulating plate disposed between the fixing plate and the top cover plate and having a chamfer at an inner edge of a side away from the battery cell.
7. The cover plate of claim 6, wherein the upper insulating plate is provided at an outer edge of a side away from the cell with a second boss engaged with an outer diameter of the fixing plate, and at an outer edge of a side close to the cell with a third boss engaged with the top cover plate.
8. The cap plate of claim 5, further comprising a lower insulating plate disposed around an outside of the body, wherein the cap plate abuts against the base through the lower insulating plate.
9. The cover plate of claim 8, wherein the inner edge of the lower insulating plate on the side away from the battery cell extends to form a fourth boss, the height of the fourth boss is less than the height of the inner hole of the top cover plate, and the top cover plate abuts against the body through the fourth boss.
10. A battery comprising the cover plate of any of claims 1-9 and a cell, wherein the cover plate is electrically connected to the cell and covers the cell to form a battery circuit and protect the cell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222598477.7U CN218351682U (en) | 2022-09-29 | 2022-09-29 | Cover plate and battery comprising same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222598477.7U CN218351682U (en) | 2022-09-29 | 2022-09-29 | Cover plate and battery comprising same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218351682U true CN218351682U (en) | 2023-01-20 |
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ID=84895369
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222598477.7U Active CN218351682U (en) | 2022-09-29 | 2022-09-29 | Cover plate and battery comprising same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218351682U (en) |
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2022
- 2022-09-29 CN CN202222598477.7U patent/CN218351682U/en active Active
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