Battery cover plate and battery
By setting an adjustment groove on the battery cover and connecting it to the pole, the problems of edge and corner collapse during the stamping process are solved, and the yield of the battery cover and the installation accuracy of the aluminum block are improved.
Patent Information
- Application Number
- CN202422463990.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-12
- Publication Date
- 2025-09-30
- Estimated Expiration
- 2034-10-12
AI Technical Summary
When punching the aluminum block groove, the battery cover is prone to edge and corner collapse defects, resulting in poor connection between the aluminum block and the battery cover.
An adjustment groove is set on the battery cover, which surrounds the outer edge of the mounting groove and is similar to it. The pole is connected to the aluminum block and the cover body to limit their relative position and avoid the occurrence of edge collapse and corner collapse.
The yield rate of the battery cover is improved, the connection effect between the aluminum block and the cover is ensured, the collapsed edges and corners are avoided, and the stable installation of the aluminum block is ensured.
Smart Images
Figure CN223401729U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of batteries, in particular to a battery cover and a battery. Background Art
[0002] A battery is a device that can convert chemical energy into electrical energy and is widely used in daily life and manufacturing.
[0003] The battery includes a battery cover, a shell and a battery cell. The battery cover is fixedly connected to the shell, and the battery cell is arranged inside the shell. The battery cover is provided with a pole and an aluminum block. The aluminum block is fixedly connected to the battery cover through the pole, and the pole is electrically connected to the aluminum block and the battery cell so that the battery can be connected to the external circuit.
[0004] The battery cover is usually provided with an aluminum block groove for positioning and accommodating the aluminum block. When processing the battery cover, the side of the battery cover facing away from the battery cell needs to be stamped to form the aluminum block groove. However, during the stamping process, the aluminum block groove may be deformed due to factors such as the stamping speed and pressure, resulting in defects such as collapsed edges and collapsed corners, resulting in inaccurate measurement points for the length and width of the aluminum block groove, and may also produce stamps, metal chips, and metal wires, which not only affects the yield of the battery cover, but also may make it difficult to accurately install the aluminum block into the aluminum block groove, resulting in poor connection between the aluminum block and the battery cover. Utility Model Content
[0005] The purpose of the utility model is to provide a battery cover and a battery, so as to solve the problems of edge collapse and corner collapse defects easily generated when punching aluminum block grooves, and poor connection effect between the aluminum block and the battery cover.
[0006] To achieve this purpose, the present invention adopts the following technical solutions:
[0007] A battery cover comprises: a cover body, the cover body being connected to an aluminum block, a mounting groove for accommodating the aluminum block being provided on a side of the cover body facing away from the battery cell, the cover body also being provided with an adjustment groove, the adjustment groove being arranged around the outer edge of the mounting groove and being independent of the mounting groove, the inner edge shape of the adjustment groove being similar to the outer edge shape of the mounting groove; a pole, the pole being connected to both the aluminum block and the cover body to limit the relative position of the aluminum block and the cover body, and the pole being electrically connected to both the aluminum block and the battery cell.
[0008] Preferably, the depth of the adjustment groove is smaller than the depth of the installation groove.
[0009] Preferably, the depth of the adjustment groove is greater than 0.1 mm, the distance between the inner edge of the adjustment groove and the outer edge of the mounting groove is in the range of 0.2 mm to 2 mm, and the width of the adjustment groove is in the range of 0.2 mm to 2 mm.
[0010] Preferably, the width of the adjustment groove is equal to the distance between the inner edge of the adjustment groove and the outer edge of the installation groove.
[0011] Preferably, two aluminum blocks are provided, and two mounting grooves and two adjustment grooves are provided correspondingly. The cover plate body is provided with a liquid injection hole, and the liquid injection hole is provided between the two adjustment grooves.
[0012] Preferably, the battery cover further includes a lower plastic, which is arranged on the side of the cover body away from the aluminum block, and the projection of the outer edge of the adjustment groove in the thickness direction of the cover body is located inside the projection of the lower plastic in the thickness direction of the cover body.
[0013] Preferably, the battery cover further comprises an upper plastic, which is arranged between the aluminum block and the cover body, and at least partially arranged in the mounting groove, and one of the upper plastic and the aluminum block is provided with a protrusion, and the other is provided with a groove corresponding to the position of the protrusion.
[0014] Preferably, the pole is connected with a sealing ring, and the sealing ring is arranged between the pole and the cover body.
[0015] Preferably, the aluminum block is a rectangular parallelepiped structure, and the shape of the mounting groove is adapted to the shape of the aluminum block.
[0016] In a second aspect, a battery includes a shell, a battery cell, and a battery cover, wherein the cover body is connected to the shell, and the battery cell is arranged inside the shell.
[0017] Beneficial effects of the utility model:
[0018] A battery cover includes a cover body and a pole, the cover body is connected to an aluminum block, a mounting groove for accommodating the aluminum block is provided on the side of the cover body facing away from the battery cell, and the cover body is also provided with an adjustment groove, which is arranged around the outer edge of the mounting groove and is independent of the mounting groove, and the inner edge shape of the adjustment groove is similar to the outer edge shape of the mounting groove; the pole is connected to the aluminum block and the cover body to limit the relative position of the aluminum block and the cover body, and the pole is electrically connected to the aluminum block and the battery cell.
[0019] In this way, when the cover body is stamped, since the installation groove and the adjustment groove are formed at the same time, the cover body between the installation groove and the adjustment groove is subjected to forces from both sides, which prevents the cover body from collapsing along the direction toward the installation groove or the adjustment groove, thereby improving the yield of the cover body, making the size of the installation groove more accurate, and improving the connection effect between the aluminum block and the cover body. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 This is a structural diagram of the cover body in one embodiment of the present utility model;
[0021] Figure 2 This is a partial cross-sectional view of the cover body in one embodiment of the present invention. Figure 1 ;
[0022] Figure 3 This is a partial cross-sectional view of the cover body in one embodiment of the present invention. Figure 2 .
[0023] In the picture:
[0024] 1. Cover body; 11. Aluminum block; 111. Groove; 12. Mounting slot; 13. Adjustment slot; 14. Filling hole; 2. Pole; 21. Sealing ring; 3. Lower plastic; 4. Upper plastic; 41. Bump; 42. Accommodation slot. DETAILED DESCRIPTION
[0025] The present invention will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are intended only to illustrate the present invention and are not intended to limit the present invention. It should also be noted that, for ease of description, the accompanying drawings only illustrate portions relevant to the present invention, not all of its components.
[0026] In the description of this utility model, unless otherwise specified or limited, the terms "connected," "connect," and "fixed" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.
[0027] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.
[0028] In the description of this embodiment, the terms "upper," "lower," "right," and other orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely for ease of description and simplified operation. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used solely for descriptive purposes and have no special meaning.
[0029] See Figure 1 and Figure 2 In the first aspect, the utility model provides a battery cover, a battery cover, comprising a cover body 1 and a pole 2, the cover body 1 is connected to an aluminum block 11, and a mounting groove 12 for accommodating the aluminum block 11 is provided on the side of the cover body 1 facing away from the battery cell, the cover body 1 is further provided with an adjustment groove 13, the adjustment groove 13 is arranged around the outer edge of the mounting groove 12 and is independent of the mounting groove 12, that is, the projections of the adjustment groove 13 and the mounting groove 12 in the thickness direction of the cover body 1 do not overlap, and the inner edge shape of the adjustment groove 13 is similar to the outer edge shape of the mounting groove 12; the pole 2 is connected to the aluminum block 11 and the cover body 1 to limit the relative position of the aluminum block 11 and the cover body 1, and the pole 2 is electrically connected to the aluminum block 11 and the battery cell.
[0030] In this embodiment, the aluminum block 11 is located in the mounting groove 12, and the pole 2 passes through the aluminum block 11 and the cover body 1 respectively and is fixedly arranged on the cover body 1, and the depth of the mounting groove 12 is less than the thickness of the aluminum block 11. When the aluminum block 11 is placed in the mounting groove 12, the side of the aluminum block 11 facing away from the cover body 1 protrudes from the cover body 1; the outer edge of the adjustment groove 13 is similar in shape to the outer edge of the mounting groove 12, that is, the width of the adjustment groove 13 is uniform.
[0031] It should be noted that the stamping die is provided with dies corresponding to the installation groove 12 and the adjustment groove 13. When the installation groove 12 needs to be processed on the cover body 1, the stamping die simultaneously stamps the installation groove 12 and the adjustment groove 13 on the side of the cover body 1 away from the battery cell.
[0032] In this way, since the mounting groove 12 and the adjustment groove 13 are formed simultaneously during the stamping process, the cover body 1 between the mounting groove 12 and the adjustment groove 13 can be subjected to forces from both sides, thereby reducing the collapse of edges and corners, thereby improving the yield of the cover body 1, and making the size of the mounting groove 12 more accurate, so as to facilitate the stable installation of the aluminum block 11 to the cover body 1, thereby improving the connection effect between the aluminum block 11 and the cover body 1.
[0033] It is understandable that the depth of the mounting groove 12 can be flexibly adjusted according to the thickness of the aluminum block 11 , and this embodiment does not limit this.
[0034] See Figure 2and Figure 3 In some embodiments, the depth H2 of the adjustment groove 13 is less than the depth H1 of the installation groove 12 .
[0035] In this way, the end of the adjustment groove 13 facing away from the cover body 1 can jointly exert a force on the cover body 1 between the adjustment groove 13 and the installation groove 12 together with the end of the installation groove 12 facing away from the cover body 1 to avoid the occurrence of collapsed edges and corners, so that the aluminum block 11 can be stably set in the installation groove 12, thereby improving the connection effect between the aluminum block 11 and the cover body 1.
[0036] It is understandable that the depth H2 of the adjustment groove 13 can also be equal to the depth H1 of the installation groove 12, so that the cover body 1 between the adjustment groove 13 and the installation groove 12 can be shaped. The depth H2 of the adjustment groove 13 can be flexibly adjusted according to actual needs, and no further examples will be given here.
[0037] See Figure 3 In some embodiments, the depth H2 of the adjustment groove 13 is greater than 0.1 mm, the distance W1 between the inner edge of the adjustment groove 13 and the outer edge of the mounting groove 12 is in the range of 0.2 mm to 2 mm, and the width W2 of the adjustment groove 13 is in the range of 0.2 mm to 2 mm.
[0038] For example, the depth H1 of the mounting groove 12 may be 0.2 mm, 0.3 mm, 0.4 mm, or 0.5 mm, the depth H2 of the adjustment groove 13 may be 0.2 mm, 0.3 mm, 0.4 mm, or 0.5 mm, the distance W1 between the inner edge of the adjustment groove 13 and the outer edge of the mounting groove 12 may be 0.2 mm, 0.4 mm, 0.6 mm, 0.8 mm, 1 mm, 1.5 mm, or 2 mm, and the width W2 of the adjustment groove 13 may be 0.2 mm, 0.4 mm, 0.6 mm, 0.8 mm, 1 mm, 1.5 mm, or 2 mm.
[0039] See Figure 3 In some embodiments, the width W2 of the adjustment groove 13 is equal to the distance W1 between the inner edge of the adjustment groove 13 and the outer edge of the mounting groove 12 .
[0040] In this way, during the stamping process, by setting different widths W2 of the adjustment groove 13 and the distances W1 between the inner edge of the adjustment groove 13 and the outer edge of the mounting groove 12, the forces acting on both sides of the cover body 1 between the mounting groove 12 and the adjustment groove 13 can be adjusted according to the specifications of the aluminum block 11 to ensure a good stamping effect, avoid the cover body 1 between the mounting groove 12 and the adjustment groove 13 from collapsing in the direction toward the mounting groove 12 or the adjustment groove 13, and improve the yield of the cover body 1 and the connection effect between the aluminum block 11 and the cover body 1.
[0041] It can be understood that the width W2 of the adjustment groove 13 can also be smaller than or larger than the distance W1 between the inner edge of the adjustment groove 13 and the outer edge of the mounting groove 12. The distance W1 between the inner edge of the adjustment groove 13 and the outer edge of the mounting groove 12 and the width W2 of the adjustment groove 13 can be flexibly adjusted according to actual needs, and no further examples will be listed here.
[0042] See Figure 1 and Figure 2 In some embodiments, two aluminum blocks 11 are provided, and the mounting grooves 12 and the adjustment grooves 13 are respectively provided. The cover body 1 is provided with a liquid injection hole 14, and the liquid injection hole 14 is provided between the two adjustment grooves 13. In this embodiment, the two aluminum blocks 11 are respectively provided at both ends of the cover body 1.
[0043] In this way, the two adjustment grooves 13 are respectively arranged on both sides of the injection hole 14, which can facilitate the stamping of the cover body 1 to form the installation groove 12, the adjustment groove 13 and the injection hole 14. Under the action of the adjustment groove 13, the position where the installation groove 12 is set on the cover body 1 is not prone to edge collapse or corner collapse, thereby improving the processing quality of the installation groove 12, making it easier for the aluminum block 11 to be stably set in the installation groove 12 and connected to the cover body 1.
[0044] It is understandable that an adjustment groove 13 may also be provided around the injection hole 14 to prevent the cover body 1 from collapsing at the edge or corner when the injection hole 14 is formed by punching. This embodiment does not limit this. The positions of the injection hole 14 and the aluminum block 11 on the cover can be flexibly adjusted according to actual needs and will not be elaborated here.
[0045] See Figure 1 In some embodiments, the aluminum block 11 is a rectangular parallelepiped structure, and the shape of the mounting groove 12 is adapted to the shape of the aluminum block 11. In this embodiment, the length direction of the aluminum block 11 is parallel to the length direction of the cover body 1.
[0046] In this way, by setting the adjustment groove 13, it is possible to avoid the edge or corner collapse at the position where the mounting groove 12 of the battery cover is set, so that the inner edge of the mounting groove 12 is adapted to the shape of the aluminum block 11, and the aluminum block 11 is stably and accurately set in the mounting groove 12, thereby avoiding the position of the aluminum block 11 on the cover body 1 from being offset, and improving the connection effect between the aluminum block 11 and the cover body 1.
[0047] It is understandable that the shapes of the aluminum block 11 and the pole 2 can be flexibly adjusted, and no further details are given here.
[0048] See Figure 1In some embodiments, the battery cover further includes a lower plastic 3, which is arranged on the side of the cover body 1 facing away from the aluminum block 11, and the projection of the outer edge of the adjustment groove 13 in the thickness direction of the cover body 1 is located inside the projection of the lower plastic 3 in the thickness direction of the cover body 1, so as to improve the structural strength of the cover body 1 corresponding to the mounting groove 12 and the adjustment groove 13.
[0049] In this embodiment, the length direction of the lower plastic 3 is parallel to the length direction of the cover body 1 , and the pole 2 passes through the lower plastic 3 and is fixedly connected to the lower plastic 3 .
[0050] In this way, the lower plastic 3 can enhance the structural strength of the cover body 1 and insulate the cover body 1 from the battery cell to avoid the risk of short circuit.
[0051] It is understandable that the length and shape of the lower plastic 3 can be flexibly adjusted according to actual needs, and no further details are given here.
[0052] See Figure 1 In some embodiments, the battery cover further includes an upper plastic 4, which is disposed between the aluminum block 11 and the cover body 1, and at least partially disposed in the mounting groove 12. A protrusion 41 is disposed on one of the upper plastic 4 and the aluminum block 11, and a groove 111 is disposed on the other corresponding to the position of the protrusion 41.
[0053] In this embodiment, the upper plastic 4 is arranged in the installation groove 12, and the upper plastic 4 is provided with a receiving groove 42 whose shape is adapted to the aluminum block 11, so that the aluminum block 11 is fixedly connected to the upper plastic 4. The thickness of the upper plastic 4 is greater than the depth of the installation groove 12, and the protrusion 41 is arranged inside the receiving groove 42 of the upper plastic 4. A groove 111 is correspondingly provided on the side of the aluminum block 11 facing the upper plastic 4.
[0054] In this way, the aluminum block 11, the upper plastic 4, and the lower plastic 3 can be fixedly arranged on the cover body 1 under the action of the pole 2 to realize the assembly of the battery cover; and the upper plastic 4 and the lower plastic 3 can insulate the cover body 1 from the battery cell, so that the battery cell is connected to the external circuit only through the pole 2 and the aluminum block 11; through the cooperation of the protrusion 41 and the groove 111, the relative position of the upper plastic 4 and the aluminum block 11 can be further restricted, thereby improving the connection effect between the aluminum block 11 and the cover body 1.
[0055] It is understandable that the protrusion 41 can also be set on the aluminum block 11 and the groove 111 can be set at the position of the upper plastic 4 corresponding to the protrusion 41. The setting position and shape of the protrusion 41 and the groove 111 can be flexibly adjusted according to actual needs, and no further examples are given here.
[0056] See Figure 2In some embodiments, the pole 2 is connected to a sealing ring 21, which is disposed between the pole 2 and the cover body 1. In this embodiment, the sealing ring 21 is sleeved on the pole 2 and abuts against the cover body 1.
[0057] In this way, the sealing ring 21 can improve the sealing performance of the cover body 1, so that when it is connected to the shell, the electrolyte inside the shell is not easily leaked to the outside, thereby improving the safety and stability of the battery cover.
[0058] See Figure 1 In a second aspect, the present invention further provides a battery comprising a housing (not shown), a battery cell (not shown), and a battery cover. The cover body 1 is connected to the housing, and the battery cell is disposed within the housing. In this embodiment, the housing is fixedly connected to the cover body 1 by welding, and the mounting slot 12 and adjustment slot 13 are both disposed on the side of the cover body 1 facing away from the battery cell.
[0059] Obviously, the above-described embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention and are not intended to limit the manner in which the present invention is to be implemented. A person skilled in the art would be able to make various obvious changes, readjustments, and substitutions without departing from the scope of protection of the present invention. It is not necessary and impossible to enumerate all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.
Claims
1. A battery cover, characterized in that: include: A cover plate body (1), the cover plate body (1) being connected to an aluminum block (11), a mounting groove (12) for accommodating the aluminum block (11) being provided on a side of the cover plate body (1) facing away from the battery cell, the cover plate body (1) further being provided with an adjustment groove (13), the adjustment groove (13) being arranged around an outer edge of the mounting groove (12) and being independent of the mounting groove (12), the inner edge shape of the adjustment groove (13) being similar to the outer edge shape of the mounting groove (12); A pole (2), the pole (2) is connected to the aluminum block (11) and the cover plate body (1) to limit the relative position of the aluminum block (11) and the cover plate body (1), and the pole (2) is electrically connected to the aluminum block (11) and the battery core.
2. The battery cover according to claim 1, characterized in that: The depth of the adjustment groove (13) is smaller than the depth of the installation groove (12).
3. The battery cover according to claim 1, characterized in that: The depth of the adjustment groove (13) is greater than 0.1 mm, the distance between the inner edge of the adjustment groove (13) and the outer edge of the installation groove (12) is in the range of 0.2 mm to 2 mm, and the width of the adjustment groove (13) is in the range of 0.2 mm to 2 mm.
4. The battery cover according to claim 1, characterized in that: The width of the adjustment groove (13) is equal to the distance between the inner edge of the adjustment groove (13) and the outer edge of the installation groove (12).
5. The battery cover according to any one of claims 1 to 4, characterized in that: Two aluminum blocks (11) are provided, and the mounting grooves (12) and the adjustment grooves (13) are both provided correspondingly. Two aluminum blocks (11) are provided, and the cover plate body (1) is provided with a liquid injection hole (14), and the liquid injection hole (14) is provided between the two adjustment grooves (13).
6. The battery cover according to any one of claims 1 to 4, characterized in that: The battery cover further comprises a lower plastic (3), wherein the lower plastic (3) is arranged on a side of the cover body (1) facing away from the aluminum block (11), and the projection of the outer edge of the adjustment groove (13) in the thickness direction of the cover body (1) is located inside the projection of the lower plastic (3) in the thickness direction of the cover body (1).
7. The battery cover according to any one of claims 1 to 4, characterized in that: The battery cover also includes an upper plastic (4), which is arranged between the aluminum block (11) and the cover body (1), and at least part of the upper plastic (4) is arranged in the mounting groove (12), and one of the upper plastic (4) and the aluminum block (11) is provided with a protrusion (41), and the other is provided with a groove (111) corresponding to the position of the protrusion (41).
8. The battery cover according to any one of claims 1 to 4, characterized in that: The pole (2) is connected to a sealing ring (21), and the sealing ring (21) is arranged between the pole (2) and the cover plate body (1).
9. The battery cover according to any one of claims 1 to 4, characterized in that: The aluminum block (11) is a rectangular parallelepiped structure, and the shape of the mounting groove (12) is adapted to the shape of the aluminum block (11).
10. A battery, characterized in that: The battery comprises a shell, a battery cell and a battery cover according to any one of claims 1 to 9, wherein the cover body (1) is connected to the shell, and the battery cell is arranged inside the shell.