Modular cover plate

Abstract

The utility model provides a combined cover plate belongs to mechanical technical field. This combined cover plate, including top cover piece and pole, the top cover piece has the connecting hole of going through, the pole is connected at the connecting hole, still include upper plastic, sealing washer and welding ring, the welding ring is covered on the upper end of pole and both fixed connections, the pole lower extreme has the ring convexity of blocking along, sealing washer is covered in the lower part of pole and sealing washer is pressed between the blocking along and top cover piece, the welding ring and top cover piece upper part have the gap, the upper plastic is covered in the outside of pole and the upper plastic lower part is embedded in the gap between welding ring and top cover piece. This combined cover plate is high in stability.

Description

Technical Field

[0001] This utility model relates to the field of mechanical technology, and more specifically to a combined cover plate. Background Technology

[0002] The battery cover is an important component of the battery pack, mainly used to seal and protect individual battery cells or modules, while providing necessary electrical connections, safety mechanisms, and interfaces for integration with other systems.

[0003] Specifically, the battery cover prevents moisture, dust, and other contaminants from entering the battery, ensuring stable operation of the battery under various environmental conditions.

[0004] The existing battery cover has a top cover plate with a cylindrical upper connecting cylinder and a lower connecting cylinder facing each other. The upper connecting cylinder and the lower connecting cylinder form a positioning cylinder on the top cover plate for positioning the terminal post. An additional plastic part for insulation needs to be installed inside the positioning cylinder.

[0005] The existing battery cover structure makes the top cover plate structure too complicated. Moreover, during the manufacturing process, the ends of the upper and lower connecting cylinders need to be riveted. After riveting, a protruding flange one is formed on the inner side of the upper connecting cylinder, and a protruding flange two is formed on the inner side of the lower connecting cylinder. The flange one and flange two are used to block the terminal post and ensure that the terminal post is stably connected to the top cover plate.

[0006] It can be seen that the existing battery cover is not only complex in structure, but also has too many processes in its preparation, which leads to higher costs and lower preparation efficiency. Utility Model Content

[0007] The purpose of this invention is to address the aforementioned problems in existing technologies by providing a modular cover that is easy to assemble and has a compact structure.

[0008] To achieve the above objectives, this utility model can be implemented through the following technical solutions:

[0009] A composite cover plate includes a top cover plate and an electrode post. The top cover plate has a through connection hole, and the electrode post is connected to the connection hole. The plate further includes an upper plastic layer, a sealing ring, and a welding ring. The welding ring is fitted around the upper end of the electrode post and the two are fixedly connected. The lower end of the electrode post has an annular protruding flange. The sealing ring is fitted around the lower part of the electrode post and is pressed tightly between the flange and the top cover plate. There is a gap between the welding ring and the upper part of the top cover plate. The upper plastic layer covers the outside of the electrode post, and the lower part of the upper plastic layer is embedded in the gap between the welding ring and the top cover plate.

[0010] In the above-mentioned combined cover plate, the pole post side has a protruding limiting edge, the inner cavity of the welding ring matches the upper end of the pole post and the welding ring is sleeved on the upper end of the pole post, and the lower part of the welding ring abuts against the limiting edge.

[0011] In the aforementioned combined cover plate, the welding ring and the pole are fixedly connected by welding.

[0012] In the aforementioned combined cover plate, the flange and the pole are an integral structure.

[0013] In the above-mentioned combined cover plate, the lower end of the connecting hole of the top cover plate has a recessed positioning seat, and the sealing ring matches the positioning seat and is embedded in the positioning seat.

[0014] In the above-mentioned combined cover plate, the sealing ring includes a cylindrical inner sealing part and an annular outer sealing part. The inner sealing part is sleeved on the pole post and is pressed tightly between the connecting hole wall of the top cover plate and the outer side of the pole post. The outer sealing part matches the positioning seat and is pressed tightly between the retaining edge and the positioning seat.

[0015] In the above-mentioned combined cover plate, the upper edge of the retaining flange has an annular protruding fastening edge, which is embedded in the outer sealing part of the sealing ring.

[0016] In the above-mentioned combined cover plate, the upper end of the pole post also has an annular recessed connecting part one. When the welding ring abuts against the limiting edge, the upper part of the welding ring is flush with the bottom of the connecting part one. The upper plastic is cylindrical and the inner side of the upper plastic has a protruding connecting part two. The connecting part two is embedded in the connecting part one.

[0017] In the above-mentioned combined cover plate, the outer edge of the welding ring has an annular recessed connecting groove, and the inner side of the upper plastic has a connecting part three that matches the connecting groove, and the connecting part three is embedded in the connecting groove.

[0018] In the above-mentioned combined cover plate, the upper end of the inner sealing part of the sealing ring is located at the connection hole, and the lower end of the upper plastic is located at the connection hole and abuts against the upper end of the inner sealing part.

[0019] Compared with existing technologies, this modular cover plate has a pre-fixed welding ring on the upper part of the pole post and a formed retaining edge at the lower part of the pole post. Therefore, after the upper plastic is coated on the upper part of the pole post by injection molding, the entire modular cover plate can be formed. Its structure is not only simpler, but the manufacturing process is also simpler, and the structure is compact.

[0020] The flange is formed using an upsetting process, which replaces the complex manufacturing method of stamping and machining the old pole post. This also reduces the amount of raw materials used, thereby lowering costs.

[0021] Meanwhile, the plastic coating is formed using existing injection molding processes, which can save on the production and assembly costs of the plastic coating, thereby further reducing costs. Attached Figure Description

[0022] Figure 1 This is a three-dimensional structural diagram of the combined cover plate.

[0023] Figure 2 This is a cross-sectional structural diagram of the combined cover plate.

[0024] Figure 3 This is a partial cross-sectional view of the pole in this combined cover plate.

[0025] In the picture:

[0026] 1. Top cover plate; 1a. Connecting hole; 1a1. Positioning seat; 2. Pole post; 2a. Stop edge; 2a1. Fastening edge; 2b. Limiting edge; 2c. Connecting part one; 3. Upper plastic; 3a. Connecting part two; 3b. Connecting part three; 4. Sealing ring; 4a. Inner sealing part; 4b. Outer sealing part; 5. Welding ring; 5a. Connecting groove; 6. Lower plastic. Detailed Implementation

[0027] The following are specific embodiments of the present invention, and the technical solution of the present invention will be further described in conjunction with the accompanying drawings.

[0028] like Figure 1-3 As shown, this combined cover plate includes a top cover plate 1 and an electrode post 2. The top cover plate 1 has a through connection hole 1a. The electrode post 2 is connected to the connection hole 1a. It also includes an upper plastic 3, a sealing ring 4, and a welding ring 5. The welding ring 5 is sleeved on the upper end of the electrode post 2 and the two are fixedly connected. The lower end of the electrode post 2 has an annular protruding flange 2a. The sealing ring 4 is sleeved on the lower part of the electrode post 2 and is pressed tightly between the flange 2a and the top cover plate 1. There is a gap between the welding ring 5 and the upper part of the top cover plate 1. The upper plastic 3 covers the outside of the electrode post 2 and the lower part of the upper plastic 3 is embedded in the gap between the welding ring 5 and the top cover plate 1.

[0029] The pole post 2 has a protruding limiting edge 2b on its side. The inner cavity of the welding ring 5 matches the upper end of the pole post 2 and the welding ring 5 is sleeved on the upper end of the pole post 2. The lower part of the welding ring 5 abuts against the limiting edge 2b.

[0030] The welding ring 5 and the pole post 2 are fixedly connected by welding.

[0031] The retaining edge 2a and the pole post 2 are an integral structure.

[0032] A welding ring 5 is welded and fixed to the upper part of the pole post 2, and the lower part of the pole post 2 has a protruding retaining edge 2a.

[0033] Therefore, the upper part of the electrode post 2 is injection molded through the injection molding process. The upper plastic 3 formed after injection molding is connected between the electrode post 2 and the top cover plate 1. At the same time, the upper plastic 3 covers the upper part of the electrode post 2.

[0034] Because the welding ring 5 is encased within the upper plastic 3, a concave-convex interlocking structure is formed between the welding ring 5 and the inner side of the upper plastic 3, ultimately ensuring a stable connection between the upper part of the pole post 2 and the top cover plate 1. At the same time, the upper plastic 3 also provides good insulation.

[0035] During assembly, the limiting edge 2b is pre-positioned against the lower part of the top cover plate 1. The sealing ring 4 is also pre-installed on the pole post 2 during this process. Ultimately, the sealing ring 4 is tightly pressed between the top cover plate 1 and the limiting edge 2b.

[0036] Welding allows the welding ring 5 to be stably fixed to the upper part of the pole post 2. At the same time, the limiting edge 2b at the lower part of the pole post 2 is an integral structure with the pole post 2, which allows the pole post 2 to be stably inserted into the connecting hole 1a of the top cover plate 1.

[0037] The top cover plate 1 has a recessed positioning seat 1a1 at the lower end of the connecting hole 1a. The sealing ring 4 matches the positioning seat 1a1 and is embedded in the positioning seat 1a1.

[0038] The positioning seat 1a1 provides sufficient space for the sealing ring 4 to be installed, and the installed sealing ring 4 will not protrude from the bottom of the top cover plate 1, which effectively improves its structural compactness.

[0039] The sealing ring 4 includes a cylindrical inner sealing part 4a and an annular outer sealing part 4b. The inner sealing part 4a is sleeved on the pole post 2 and is pressed tightly between the wall of the connecting hole 1a of the top cover plate 1 and the outside of the pole post 2. The outer sealing part 4b matches the positioning seat 1a1 and is pressed tightly between the retaining edge 2a and the positioning seat 1a1.

[0040] The inner sealing part 4a enables a good seal between the outer side of the pole post 2 and the wall of the connecting hole 1a. The outer sealing part 4b enables a good seal between the lower part of the top cover plate 1 and the limiting edge 2b.

[0041] The upper edge of the retaining edge 2a has an annular protruding fastening edge 2a1, which is embedded in the outer sealing part 4b of the sealing ring 4.

[0042] The snap-fit ​​edge 2a1 can be embedded in the flexible sealing ring 4, further improving the connection stability between the snap-fit ​​edge 2a and the sealing ring 4.

[0043] The upper end of the pole post 2 also has an annular recessed connecting part 2c. When the welding ring 5 abuts against the limiting edge 2b, the upper part of the welding ring 5 is flush with the bottom of the connecting part 2c. The upper plastic 3 is cylindrical and has a protruding connecting part 3a on the inner side of the upper plastic 3. The connecting part 3a is embedded in the connecting part 2c.

[0044] This improves structural compactness and also visually informs assemblers whether the welding ring 5 is pre-assembled correctly. In other words, the welding ring 5 is only considered properly assembled when the upper part of the welding ring 5 is flush with the bottom of the connecting part 2c.

[0045] Connector 2 3a is embedded in connector 1 2c to form a snap-fit ​​connection structure, which ultimately ensures that the upper plastic 3 is stably wrapped and connected to the upper part of the pole post 2.

[0046] The outer edge of the welding ring 5 has an annular recessed connecting groove 5a, and the inner side of the upper plastic 3 has a connecting part 3b that matches the connecting groove 5a. The connecting part 3b is embedded in the connecting groove 5a.

[0047] After the connecting part 3b is embedded in the connecting groove 5a, a concave-convex snap-fit ​​structure is formed between the upper plastic 3 and the welding ring 5, which can further improve the connection stability between the upper plastic 3 and the upper end of the pole post 2.

[0048] The upper end of the inner sealing part 4a of the sealing ring 4 is located at the connecting hole 1a, and the lower end of the upper plastic 3 is located at the connecting hole 1a and the lower end of the upper plastic 3 abuts against the upper end of the inner sealing part 4a.

[0049] When the inner sealing part 4a abuts against the lower end of the upper plastic 3, it can improve the compactness of the structure and eliminate the void structure.

[0050] Because the welding ring is pre-fixed to the upper part of the pole post and a retaining edge is formed at the lower part of the pole post, the entire composite cover plate can be formed after the upper plastic is wrapped on the upper part of the pole post by injection molding. Its structure is not only relatively simple, but the manufacturing process is also relatively simple, and the structure is compact.

[0051] The retaining edge is formed using an upsetting process, which replaces the complex manufacturing method of stamping and machining the old electrode post. Furthermore, the material used in the electrode post is reduced, decreasing the amount of raw materials required and thus lowering costs.

[0052] Meanwhile, the plastic coating is formed using existing injection molding processes, which can save on the production and assembly costs of the plastic coating, thereby further reducing costs.

[0053] In this embodiment, a long sheet-shaped lower plastic 6 is also fixedly connected to the lower part of the top cover 1. The lower plastic 6 has clearance holes facing the poles. The lower plastic is an insulating material; in this embodiment, the lower plastic is a rubber material.

[0054] The above-described technical solution of this utility model addresses the problem that existing technical solutions are too simplistic and provides a solution that is significantly different from existing technologies. The parts not covered in this application are the same as or can be implemented using existing technologies, and will not be described in detail here.

[0055] The technical solutions in the above embodiments have clearly and completely described the content of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

Claims

1. A combined cover plate, comprising a top cover plate and an electrode post, wherein the top cover plate has a through connection hole, and the electrode post is connected to the connection hole, characterized in that, It also includes an upper plastic, a sealing ring, and a welding ring. The welding ring is fitted onto the upper end of the pole post and the two are fixedly connected. The lower end of the pole post has an annular protruding flange. The sealing ring is fitted onto the lower part of the pole post and is pressed tightly between the flange and the top cover plate. There is a gap between the welding ring and the upper part of the top cover plate. The upper plastic covers the outside of the pole post and the lower part of the upper plastic is embedded in the gap between the welding ring and the top cover plate.

2. The combined cover plate according to claim 1, characterized in that, The pole post has a protruding limiting edge on its side. The inner cavity of the welding ring matches the upper end of the pole post, and the welding ring is sleeved on the upper end of the pole post. The lower part of the welding ring abuts against the limiting edge.

3. The combined cover plate according to claim 2, characterized in that, The welding ring and the pole are fixedly connected by welding.

4. The combined cover plate according to claim 3, characterized in that, The flange and the pole are an integral structure.

5. The combined cover plate according to claim 1, 2, 3, or 4, characterized in that, The top cover plate has a recessed positioning seat at the lower end of the connecting hole, and the sealing ring matches the positioning seat and is embedded in the positioning seat.

6. The combined cover plate according to claim 5, characterized in that, The sealing ring includes a cylindrical inner sealing part and an annular outer sealing part. The inner sealing part is fitted onto the pole post and is pressed tightly between the connecting hole wall of the top cover plate and the outer side of the pole post. The outer sealing part matches the positioning seat and is pressed tightly between the retaining edge and the positioning seat.

7. The combined cover plate according to claim 6, characterized in that, The upper edge of the retaining edge has an annular protruding fastening edge, which is embedded in the outer sealing part of the sealing ring.

8. The combined cover plate according to claim 7, characterized in that, The upper end of the pole post also has an annular recessed connecting part one. When the welding ring abuts against the limiting edge, the upper part of the welding ring is flush with the bottom of the connecting part one. The upper plastic is cylindrical and has a protruding connecting part two on the inner side of the upper plastic. The connecting part two is embedded in the connecting part one.

9. The combined cover plate according to claim 8, characterized in that, The outer edge of the welding ring has an annular recessed connecting groove, and the inner side of the upper plastic has a connecting part three that matches the connecting groove. The connecting part three is embedded in the connecting groove.

10. The combined cover plate according to claim 9, characterized in that, The upper end of the inner sealing part of the sealing ring is located at the connection hole, and the lower end of the upper plastic is located at the connection hole and abuts against the upper end of the inner sealing part.

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