Battery cover plate with extremely simple structure

Abstract

The utility model provides a battery cover plate with an extremely simple structure, which comprises an upper plastic, a top cover sheet, a pole, a sealing ring, a welding ring and a lower plastic which are sequentially arranged from top to bottom, and the pole comprises a positive pole and a negative pole which are positioned at the left end and the right end of the lower surface of the upper plastic; the sealing rings are positioned between the welding rings and the pole columns and sleeve the corresponding pole columns; the welding ring is positioned between the sealing ring and the lower plastic cement, is matched with the corresponding post terminal, and is buckled on the post terminal through the sealing ring; the upper plastic comprises positive upper plastic and negative upper plastic which are positioned at the left and right ends of the upper side of the top cover sheet; the lower plastic is located on the lower portion of the welding ring, and the welding ring is arranged on the lower plastic. By adopting the injection molding and welding molding structure, the injection molding process size is accurate, the surface quality is better, the production efficiency is high, the welding process strength is high, and the air tightness of a product can be effectively ensured.

Description

Technical Field

[0001] This utility model relates to the field of battery cover technology, and in particular to a battery cover with a minimalist structure. Background Technology

[0002] Currently, the main assembly processes for the cover plate electrode area of ​​lithium battery structural components are injection molding, welding, and riveting. Among them, the welded structure has the best stability and the highest strength.

[0003] Traditional battery covers have solid structures with flat top and bottom surfaces for the positive and negative terminals. Therefore, both the positive and negative terminals require a significant amount of copper, resulting in high manufacturing costs. Existing battery assembly structures are complex, typically assembling multiple parts in a single process, leading to low production efficiency. Utility Model Content

[0004] This utility model provides a battery cover with a minimalist structure, the purpose of which is to solve the technical problem of complex battery assembly structures in the prior art.

[0005] To achieve the above objectives, this utility model provides a minimalist battery cover plate, comprising, from top to bottom, an upper plastic layer, a top cover sheet, a terminal post, a sealing ring, a welding ring, and a lower plastic layer, wherein:

[0006] The terminals include the positive terminal and the negative terminal located at the left and right ends of the lower surface of the upper plastic;

[0007] A sealing ring is located between the welding ring and the pole post and is fitted onto the corresponding pole post;

[0008] A welding ring is located between the sealing ring and the lower plastic and is adapted to the corresponding pole post. The welding ring is connected to the top cover plate through the sealing ring.

[0009] The upper plastic includes positive upper plastic and negative upper plastic located at the left and right ends on the upper side of the top cover plate, wherein the positive upper plastic and negative upper plastic are respectively matched and correspond to the positive electrode post and the negative electrode post;

[0010] The lower plastic is located below the welding ring, and the welding ring is disposed on the lower plastic;

[0011] The top cover plate, the pole is fixed to the top cover plate by injection molding to form the upper plastic; after the sealing ring is assembled with the welding ring, the sealing ring and the pole are fixed to the top cover plate by welding.

[0012] Both the positive and negative terminals include a base plate and a protrusion. The base plate is adapted to the welding ring and the lower plastic, and the protrusion is adapted to the top cover plate.

[0013] The protrusion on the pole passes through the top cover plate, is injection molded into the upper plastic, and is connected to the positive terminal of the external device.

[0014] The base plate on the pole passes through the sealing ring and welding ring in sequence, and is fitted to the lower plastic.

[0015] Both the positive electrode plastic and the negative electrode plastic are integrally injection molded.

[0016] The plastic on the positive electrode and / or the plastic on the negative electrode are marked with a foolproof designation.

[0017] The top cover plate has a through hole in the middle that matches the explosion-proof plate, and a protective plate that matches the explosion-proof plate is provided on the through hole. The explosion-proof plate and the protective plate are respectively provided on both sides of the top cover plate.

[0018] The base plate is a square base plate, and the upper surface of the lower plastic is provided with a square anti-rotation groove that matches the base plate, and a buckle plate that matches the pole post.

[0019] The square structure of the upper plastic, top cover, pole, sealing ring, welding ring, and lower plastic all have rounded corners.

[0020] The top cover is made of aluminum.

[0021] The simplified battery cover of this utility model has the following beneficial effects:

[0022] The structure employs injection molding and welding. The injection molding process ensures precise dimensions, good surface quality, and high production efficiency, while the welding process provides high strength and effectively guarantees product airtightness. Positive and negative terminals are assembled at the positive and negative through-holes in the top cover plate before injection molding, effectively improving production efficiency and plastic strength. The upper plastic is injection molded as a single unit, resulting in good airtightness and surface quality. The combination of injection molding and welding avoids assembling multiple parts in a single process, thus improving work efficiency. Attached Figure Description

[0023] Figure 1 This is an exploded view of a preferred embodiment of a battery cover with a minimalist structure according to the present invention;

[0024] in:

[0025] 1. Top cover plate; 2. Explosion-proof plate; 3. Negative electrode post; 4. Positive electrode post; 5. Upper plastic of negative electrode; 6. Upper plastic of positive electrode; 7. Sealing ring; 8. Welding ring; 9. Lower plastic; 10. Protective plate. Detailed Implementation

[0026] To make the technical problems, technical solutions and advantages of this utility model clearer, a detailed description will be given below in conjunction with the accompanying drawings and specific embodiments.

[0027] It should be noted that in this embodiment, "first" and "second" simply represent different components and have no sequential order. Figure 1 For example, vertically upward is front, vertically downward is back, vertically left is left, vertically right is right, vertically inward is down, vertically outward is up, left and right directions are horizontal, and front and back directions are vertical.

[0028] This invention addresses existing problems by providing a battery cover with a minimalist structure.

[0029] In one embodiment, a minimalist battery cover structure, such as Figure 1 As shown, it includes, from top to bottom, an upper plastic component, a top cover plate 1, an electrode post, a sealing ring 7, a welding ring 8, and a lower plastic component 9, wherein:

[0030] The terminals include the positive terminal 4 and the negative terminal 3 located at the left and right ends of the lower surface of the upper plastic.

[0031] The sealing ring 7 is located between the welding ring 8 and the pole post and is sleeved on the corresponding pole post;

[0032] The welding ring 8 is located between the sealing ring 7 and the lower plastic 9 and is adapted to the corresponding pole post. The welding ring 8 is connected to the top cover plate through the sealing ring 7.

[0033] The upper plastic includes a positive upper plastic 6 and a negative upper plastic 5 located at the left and right ends of the upper side of the top cover plate 1, wherein the positive upper plastic 6 and the negative upper plastic 5 are respectively matched and correspond to the positive electrode post 4 and the negative electrode post 3.

[0034] The lower plastic 9 is located below the welding ring 8, and the welding ring 8 is disposed on the lower plastic 9;

[0035] The top cover plate 1 is formed by injection molding of the electrode post onto the top cover plate 1, which forms the upper plastic. After the sealing ring is assembled with the welding ring, the sealing ring 7 and the electrode post are fixed to the top cover plate 1 by welding.

[0036] In this embodiment, an injection molding and welding structure is adopted. The injection molding process ensures precise dimensions, good surface quality, and high production efficiency, while the welding process provides high strength and effectively guarantees the product's airtightness. The positive and negative terminals are assembled at the positive and negative through-holes in the top cover plate before injection molding, effectively improving production efficiency and plastic strength. The upper plastic is injection molded as a single unit, resulting in good airtightness and surface quality. The combination of injection molding and welding avoids assembling multiple parts in a single process, thus improving work efficiency.

[0037] Both the positive electrode post 4 and the negative electrode post 3 include a base plate and a protrusion. The base plate is adapted to the welding ring 8 and the lower plastic 9, and the protrusion is adapted to the top cover plate 1.

[0038] The protrusion on the pole passes through the top cover plate 1, is injection molded into the upper plastic, and is connected to the positive end of the external device.

[0039] The base plate on the pole passes through the sealing ring 7 and the welding ring 8 in sequence, and is adapted to fit the lower plastic.

[0040] It should be noted that in this embodiment, both the sealing ring 7 and the welding ring 8 are provided with through holes that are adapted to the base plate, and the corresponding protrusions on the pole pass through the top cover plate and are connected to the positive and negative terminals of the external device.

[0041] The upper surface of the sealing ring 7 abuts against the lower surface of the pole post, and the lower side of the sealing ring 7 abuts against the upper surface of the welding ring 8. The sealing is achieved by the compression of the pole post and the welding ring 8.

[0042] Both the positive electrode plastic 6 and the negative electrode plastic 5 are integrally injection molded. Integral injection molding reduces processing difficulty and greatly improves production efficiency.

[0043] The positive electrode plastic 6 and / or the negative electrode plastic 5 are provided with a foolproof marking.

[0044] In this embodiment, the first anti-mistake mark on the protrusion of the positive terminal 4 is "+", and the first anti-mistake mark on the protrusion of the negative terminal is "-". In actual application, the first anti-mistake mark can be set on the protrusion of the positive terminal 4, or on the protrusion of the negative terminal 3, or both the positive terminal 4 and the negative terminal 3 can be set simultaneously, as long as the operator can effectively identify the positive terminal 4 and the negative terminal 3.

[0045] The top cover plate 1 has a through hole in the middle that matches the explosion-proof plate 2, and a protective plate 10 that matches the explosion-proof plate 2 is provided on the through hole. The explosion-proof plate 2 and the protective plate are respectively provided on both sides of the top cover plate 1.

[0046] In this embodiment, by providing the through hole, the protective sheet 10 can be placed inside the through hole for protection.

[0047] The base plate is a square base plate, and the upper surface of the lower plastic 9 is provided with a square anti-rotation groove that matches the base plate, and a buckle plate that matches the pole post.

[0048] In this embodiment, the square anti-rotation groove allows operators to quickly and easily place the welding ring into the corresponding square anti-rotation groove of the lower plastic 9, effectively improving installation efficiency.

[0049] The square structure of the upper plastic, top cover 1, pole, sealing ring 7, welding ring 8 and lower plastic 9 all have rounded corners.

[0050] In this embodiment, by setting rounded corners on the outside of the component, it is possible to effectively prevent the assembler from getting cut during the assembly process, and it also facilitates the assembly between components, thereby improving the efficiency of the assembly work.

[0051] The top cover plate 1 is made of aluminum.

[0052] In this embodiment, the top cover plate is made of aluminum, which provides a high-strength substrate material. This facilitates the injection molding and assembly of the electrode post onto the top cover plate 1, and also allows the welding ring 8 to be welded onto the top cover plate 1 to fix the electrode post, sealing ring 7, and welding ring 8.

[0053] The above description is the preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.

Claims

1. A battery cover with a minimalist structure, characterized in that, It includes, from top to bottom, an upper plastic sheet, a top cover plate (1), an electrode post, a sealing ring (7), a welding ring (8), and a lower plastic sheet (9), wherein: The poles include the positive pole (4) and the negative pole (3) located at the left and right ends of the lower surface of the upper plastic; A sealing ring (7) is located between the welding ring (8) and the pole post and is fitted onto the corresponding pole post; A welding ring (8) is located between the sealing ring (7) and the lower plastic (9) and is adapted to the corresponding pole post. The welding ring (8) is connected to the top cover plate through the sealing ring (7). The plastic coating includes a positive electrode plastic coating (6) and a negative electrode plastic coating (5) located on the left and right sides of the top cover plate (1), and the positive electrode plastic coating (6) and the negative electrode plastic coating (5) are respectively matched and correspond to the positive electrode post (4) and the negative electrode post (3); The lower plastic (9) is located below the welding ring (8), and the welding ring (8) is disposed on the lower plastic (9); The top cover plate (1) is fixed to the top cover plate (1) by injection molding to form the upper plastic; after the sealing ring is assembled with the welding ring, the sealing ring (7) and the electrode are fixed to the top cover plate (1) by welding.

2. The battery cover plate with a minimalist structure according to claim 1, characterized in that, Both the positive electrode post (4) and the negative electrode post (3) include a base plate and a protrusion. The base plate is adapted to the welding ring (8) and the lower plastic (9), and the protrusion is adapted to the top cover plate (1). The protrusion on the pole passes through the top cover plate (1), is injection molded to form the upper plastic, and is connected to the positive end of the external device; The base plate on the pole passes through the sealing ring (7) and welding ring (8) in sequence, and is adapted to the lower plastic.

3. The battery cover plate with a minimalist structure according to claim 1, characterized in that, Both the positive electrode plastic (6) and the negative electrode plastic (5) are integrally injection molded.

4. A battery cover with a minimalist structure according to claim 2, characterized in that, The plastic on the positive electrode (6) and / or the plastic on the negative electrode (5) are provided with a foolproof marking.

5. A battery cover with a minimalist structure according to claim 1, characterized in that, The top cover plate (1) has a through hole in the middle that matches the explosion-proof plate (2), and a protective plate (10) that matches the explosion-proof plate (2) is provided on the through hole. The explosion-proof plate (2) and the protective plate are respectively provided on both sides of the top cover plate (1).

6. A battery cover with a minimalist structure according to claim 2, characterized in that, The base plate is a square base plate, and the upper surface of the lower plastic (9) is provided with a square anti-rotation groove that matches the base plate, and a buckle plate that matches the pole post.

7. A battery cover with a minimalist structure according to claim 1, characterized in that, The square structure of the upper plastic, top cover (1), pole, sealing ring (7), welding ring (8) and lower plastic (9) all have rounded corners.

8. A battery cover with a minimalist structure according to claim 1, characterized in that, The top cover (1) is made of aluminum.

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