Novel battery cover plate

Abstract

The utility model discloses a novel battery cover plate which comprises a top cover body, a lower plastic component is arranged at the bottom of the top cover body, mounting through holes are formed in two sides of the top cover body, and positioning holes matched with the mounting through holes are formed in the lower plastic component; a positive pole and a negative pole are arranged in the positioning hole, the positive pole and the negative pole are both provided with protruding parts, positive upper plastic cement is arranged on the peripheral side of the protruding part of the positive pole, a first aluminum block is arranged on the positive upper plastic cement, and negative upper plastic cement is arranged on the peripheral side of the protruding part of the negative pole. And a second aluminum block is arranged on the negative electrode upper plastic cement. Compared with a traditional riveting cover plate, the riveting process is omitted and changed into die-casting welding, cost input is reduced by 10%, process efficiency is improved by 10%, and the reject ratio in the manufacturing process is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of batteries, in particular to a novel battery cover. Background Art

[0002] The battery cover is an important component of the power battery. It has many functions such as battery shell sealing, current conduction, pressure relief and fuse protection.

[0003] Generally, the battery cover adopts a riveting process to place the various components on the body, which is costly, has an unstable riveted structure and a low yield rate. Utility Model Content

[0004] The technical problem to be solved by the present invention is to provide a new type of battery cover. Compared with the traditional riveted cover, the riveting process is eliminated and replaced by die-casting welding, which reduces the cost investment by 10%, improves the process efficiency by 10%, and reduces the defect rate in the production process.

[0005] In order to solve the above technical problems, the utility model provides a new battery cover, including a top cover body, a lower plastic component is provided at the bottom of the top cover body, mounting through holes are provided on both sides of the top cover body, and positioning holes adapted to the mounting through holes are provided on the lower plastic component; a positive electrode column and a negative electrode column are provided in the positioning holes, and both the positive electrode column and the negative electrode column are provided with a raised portion, a positive electrode upper plastic is provided around the raised portion of the positive electrode column, a first aluminum block is provided on the positive electrode upper plastic, a negative electrode upper plastic is provided around the raised portion of the negative electrode column, and a second aluminum block is provided on the negative electrode upper plastic.

[0006] Furthermore, a first sealing ring is provided between the plastic on the positive electrode and the bottom surface of the positive electrode column.

[0007] Furthermore, a second sealing ring is provided between the plastic on the negative electrode and the bottom surface of the negative electrode column.

[0008] Furthermore, a placement groove is provided at the center of the lower plastic component, and an explosion-proof valve is provided in the placement groove.

[0009] Furthermore, a placement through hole is provided on the top cover body at a position corresponding to the placement groove, and a protective film is provided in the placement through hole at a position corresponding to the explosion-proof valve.

[0010] Furthermore, heat dissipation holes are provided on the lower plastic component.

[0011] The beneficial effects of the present invention are as follows: compared with the traditional riveted cover plate, the present device eliminates the riveting process and replaces it with pressure welding, which reduces the cost investment by 10%, improves the process efficiency by 10%, and reduces the defect rate in the production process. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural explosion diagram of the utility model.

[0013] Figure 2 It is a schematic diagram of the overall structure of the utility model.

[0014] Explanation of the numbers in the figure: 1. Top cover body; 2. Lower plastic component; 3. Mounting through hole; 4. Positioning hole; 5. Positive column; 6. Negative column; 7. Raised part; 8. Positive upper plastic; 9. First aluminum block; 10. Negative upper plastic; 11. Second aluminum block; 12. First sealing ring; 13. Second sealing ring; 14. Placement groove; 15. Explosion-proof valve; 16. Placement through hole; 17. Protective film; 18. Heat dissipation hole. DETAILED DESCRIPTION

[0015] The present invention will be further described below with reference to the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present invention and implement it. However, the embodiments are not intended to limit the present invention.

[0016] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation to the present invention.

[0017] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this utility model, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0018] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediate medium; internal communication between two components, or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0019] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0020] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only implementation methods.

[0021] Reference Figures 1 to 2 As shown, an embodiment of a new type of battery cover of the present invention includes a top cover body 1, a lower plastic component 2 is provided at the bottom of the top cover body 1, mounting through holes 3 are provided on both sides of the top cover body 1, and a positioning hole 4 adapted to the mounting through holes 3 is provided on the lower plastic component 2; a positive electrode column 5 and a negative electrode column 6 are provided in the positioning hole 4, and the positive electrode column 5 and the negative electrode column 6 are both provided with a protrusion 7, a positive electrode upper plastic 8 is provided on the side around the protrusion 7 of the positive electrode column 5, a first aluminum block 9 is provided on the positive electrode upper plastic 8, a negative electrode upper plastic 10 is provided on the side around the protrusion 7 of the negative electrode column 6, and a second aluminum block 11 is provided on the negative electrode upper plastic 10.

[0022] Compared with traditional riveted cover plates, the riveting process is eliminated and replaced with pressure welding, which reduces costs by 10%, improves process efficiency by 10%, and reduces the defect rate in the production process;

[0023] A first sealing ring 12 is provided between the positive electrode upper plastic 8 and the bottom surface of the positive electrode column 5, and a second sealing ring 13 is provided between the negative electrode upper plastic 10 and the bottom surface of the negative electrode column 6, which play a sealing role, so that the positive electrode upper plastic 8 and the positive electrode column 5, the negative electrode upper plastic 10 and the negative electrode column 6, and the two combinations and the positioning hole 4 on the lower plastic component 2 are sealed.

[0024] A placement groove 14 is provided at the center of the lower plastic component 2, and an explosion-proof valve 15 is provided in the placement groove 14. When the battery has an accident due to improper charging and discharging, short circuit or exposure to a harsh environment such as high temperature, the high-energy battery will generate a large amount of gas and the temperature will rise sharply. The gas will rush open the explosion-proof valve 15 to achieve the purpose of pressure relief.

[0025] A placement through hole 16 is provided on the top cover body 1 at a position corresponding to the placement groove 14 , and a protective film 17 is provided in the placement through hole 16 at a position corresponding to the explosion-proof valve 15 to protect the explosion-proof valve 15 under normal circumstances.

[0026] The lower plastic component 2 is provided with heat dissipation holes 18 for dissipating heat during operation.

[0027] The above-described embodiments are merely preferred embodiments for the purpose of fully illustrating the present invention, and the scope of protection of the present invention is not limited thereto. Equivalent substitutions or modifications made by those skilled in the art based on the present invention are within the scope of protection of the present invention. The scope of protection of the present invention shall be subject to the claims.

Claims

1. A new type of battery cover, characterized in that: The invention comprises a top cover body (1), a lower plastic component (2) is provided at the bottom of the top cover body (1), mounting through holes (3) are provided on both sides of the top cover body (1), and positioning holes (4) adapted to the mounting through holes (3) are provided on the lower plastic component (2); A positive electrode column (5) and a negative electrode column (6) are arranged in the positioning hole (4); both the positive electrode column (5) and the negative electrode column (6) are provided with a protrusion (7); a positive electrode upper plastic (8) is arranged around the protrusion (7) of the positive electrode column (5); a first aluminum block (9) is arranged on the positive electrode upper plastic (8); a negative electrode upper plastic (10) is arranged around the protrusion (7) of the negative electrode column (6); a second aluminum block (11) is arranged on the negative electrode upper plastic (10).

2. The new battery cover according to claim 1, characterized in that: A first sealing ring (12) is provided between the positive electrode upper plastic (8) and the bottom surface of the positive electrode column (5).

3. The new battery cover according to claim 1, characterized in that: A second sealing ring (13) is provided between the negative electrode upper plastic (10) and the bottom surface of the negative electrode column (6).

4. The new battery cover according to claim 1, characterized in that: A placement groove (14) is provided at the center of the lower plastic component (2), and an explosion-proof valve (15) is provided in the placement groove (14).

5. The new battery cover as claimed in claim 4, characterized in that: A placement through hole (16) is provided on the top cover body (1) at a position corresponding to the placement groove (14), and a protective film (17) is provided in the placement through hole (16) at a position corresponding to the explosion-proof valve (15).

6. The novel battery cover as claimed in claim 1, characterized in that: The lower plastic component (2) is provided with heat dissipation holes (18).

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