Connecting structure of pole and connecting piece and battery cover plate thereof

Abstract

The utility model provides a kind of connection structure of pole and connecting piece and its battery cover plate.The connection structure of pole and connecting piece is between the lower end of pole and connecting piece, the connecting piece center has the sleeve joint portion that can be covered in the outside of pole, the connecting piece brim has several protruding positioning parts, when the lower end of pole is embedded in sleeve joint portion, the above-mentioned several positioning parts are all abutted in lower plastic lower part and connecting piece is parallel with lower plastic.The battery cover plate has the above-mentioned connection structure.The connection structure can effectively improve the yield of battery cover plate.

Description

Technical Field

[0001] This utility model relates to the field of mechanical technology, specifically to the connection structure between the electrode post and the connecting piece and its battery cover plate. Background Technology

[0002] Conventional battery covers are typically riveted and then welded. Poor welding can lead to leakage, posing a safety hazard.

[0003] Specifically, when welding the electrode post to the connecting piece, the connecting piece is usually placed against the lower part of the lower plastic. Theoretically, there should be surface contact between the connecting piece and the lower plastic to ensure that the connecting piece is stably connected to it after welding. However, in actual assembly operations, surface contact cannot be guaranteed. There will always be a slight gap between the connecting piece and the lower plastic, which causes the connecting piece to be misaligned and ultimately affects the welding accuracy. Utility Model Content

[0004] The first objective of this invention is to address the aforementioned problems in the existing technology by providing a connection structure between the pole and the connecting piece with high assembly precision.

[0005] The second objective of this invention is to provide a battery cover having the above-described connection structure.

[0006] To achieve the first objective mentioned above, this utility model can be implemented through the following technical solutions:

[0007] A connection structure for an electrode post and a connecting piece is disclosed. The electrode post is cylindrical and is inserted into a lower plastic substrate. The lower end of the electrode post extends out of the lower plastic substrate. The connecting piece is located at the lower part of the lower plastic substrate and the lower end of the electrode post is connected to the connecting piece. The connection structure is characterized in that the lower end of the electrode post is located between the connecting piece and the lower end of the electrode post. The connecting piece has a sleeve portion at its center that can cover the outside of the electrode post. The edge of the connecting piece has several protruding pre-positioning portions. When the lower end of the electrode post is embedded in the sleeve portion, the aforementioned pre-positioning portions abut against the lower part of the lower plastic substrate, and the connecting piece is parallel to the lower plastic substrate.

[0008] In the above-mentioned connection structure of pole post and connecting piece, the connecting piece has several circumferentially distributed openings at its center, and one side of each opening has an upwardly folded and protruding support edge, and the several circumferentially distributed support edges form the above-mentioned sleeve portion.

[0009] In the above-mentioned connection structure between the pole and the connecting piece, several openings are arranged adjacently and several openings form a multi-hole hollow welding part in the middle of the connecting piece. The lower end of the pole abuts against the welding part and the two are fixedly connected by welding.

[0010] In the above-mentioned connection structure between the pole post and the connecting piece, the connecting piece has several circumferentially distributed openings II at its edge, and the openings II have upwardly folded and protruding support edges II at their edges, and the several support edges II form the above-mentioned prepositioning portion.

[0011] In the above-mentioned connection structure between the pole and the connecting piece, the connecting piece has a protruding reinforcing part at its center, and the above-mentioned opening is located at one point of the reinforcing part.

[0012] In the above-mentioned connection structure between the pole and the connecting piece, the edge of the connecting piece has a protruding reinforcing part two, and the above-mentioned opening two is located at the reinforcing part two.

[0013] In the above-mentioned connection structure between the pole and the connecting piece, the first reinforcement part, the second reinforcement part, and the connecting piece are an integral structure.

[0014] In the above-mentioned connection structure between the pole and the connecting piece, the second reinforcement part extends from the edge of the connecting piece to the first reinforcement part, and the first reinforcement part and the second reinforcement part are flush.

[0015] In the above-mentioned connection structure between the pole and the connecting piece, the support along the two width dimensions is 2 / 3 to 3 / 4 of the width dimension of the reinforcement part.

[0016] To achieve the second objective mentioned above, this utility model can be implemented through the following technical solutions:

[0017] A battery cover plate, characterized in that it comprises an upper plastic, a substrate, a lower plastic, and a connecting piece, wherein the upper plastic is fixedly connected to the upper part of the substrate, the lower plastic is fixedly connected to the lower part of the substrate, the connecting piece is located at the lower part of the lower plastic, and the connecting structure is located between the connecting piece and the lower plastic.

[0018] Compared with existing technologies, the connection structure of this electrode post and connecting piece achieves pre-positioning of the connecting piece and the lower end of the electrode post through the sleeve part. The pre-positioning part ensures that the connecting piece and the lower plastic maintain a stable parallel state. Therefore, the connecting piece will not be significantly skewed after the electrode post and connecting piece are welded, and its yield rate is relatively high. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the battery cover.

[0020] Figure 2 This is a schematic diagram of the three-dimensional structure of the connecting piece.

[0021] Figure 3 This is a cross-sectional view of the battery cover.

[0022] In the picture:

[0023] 1. Pole post; 2. Connecting piece; 21. Opening 1; 22. Support edge 1; 23. Opening 2; 24. Support edge 2; 3. Reinforcing part 1; 4. Reinforcing part 2; 5. Lower plastic; 6. Substrate; 7. Upper plastic. Detailed Implementation

[0024] 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.

[0025] like Figure 1-3 As shown, the electrode post 1 is cylindrical and is connected to the lower plastic 5. The lower end of the electrode post 1 extends out of the lower plastic 5. The connecting piece 2 is located at the lower part of the lower plastic 5 and the lower end of the electrode post 1 is connected to the connecting piece 2.

[0026] The connection structure between the pole and the connecting piece is located between the lower end of the pole 1 and the connecting piece 2. The connecting piece 2 has a sleeve portion at its center that can cover the outside of the pole 1. The edge of the connecting piece 2 has several protruding prepositioning portions. When the lower end of the pole 1 is embedded in the sleeve portion, the aforementioned prepositioning portions abut against the lower part of the lower plastic 5 and the connecting piece 2 is parallel to the lower plastic 5.

[0027] The inner cavity of the socket matches the lower end of the pole post 1, and a pre-position can be formed once the lower end of the pole post 1 is inserted.

[0028] Since the pre-positioning parts are contact points that form a supporting contact with the lower plastic 5, the processing accuracy of multiple contact points is easier to control compared to surface contact. In other words, compared to complete surface contact, the height and position of multiple pre-positioning parts are easier to guarantee while keeping manufacturing costs relatively low.

[0029] Therefore, after the pre-positioning part abuts against the lower plastic 5, the connecting piece 2 remains parallel to the lower plastic 5. Since the pole post 1 is set perpendicular to the lower plastic 5, it can ultimately ensure a high yield rate of finished products after the pole post 1 and the connecting piece 2 are welded, and the connecting piece 2 always remains parallel to the lower plastic 5.

[0030] The connecting piece 2 has several circumferentially distributed openings 21 at its center, and the edges of the openings 21 have upwardly folded support edges 22. The several circumferentially distributed support edges 22 form the above-mentioned sleeve portion.

[0031] Using the corresponding stamping die, a U-shaped hole is formed on the connecting piece 2. After folding the remaining part, the opening 21 and the support edge 22 can be formed at the same time.

[0032] Of course, the inner side of the support along line 22 matches the outer side of the pole post 1. This structure can maximize the contact area between the support along line 22 and the outer side of the pole post 1, thereby improving the connection stability between the sleeve and the lower end of the pole post 1.

[0033] In this embodiment, the support smoothly transitions along the upper part of line 22, and this structure ensures that the lower end of the pole post can be smoothly inserted into the sleeve.

[0034] Several openings 21 are arranged adjacently and form a multi-hole hollow structure welding part in the middle of the connecting piece 2. The lower end of the pole post 1 abuts against the welding part and the two are fixedly connected by welding.

[0035] The welding section provides ample space for welding operations.

[0036] The connecting piece 2 has several circumferentially distributed openings 23 at its edge, and the openings 23 have upwardly folded and protruding support edges 24 at their edges, and the several support edges 24 form the aforementioned prepositioning portion.

[0037] Similarly, by using the corresponding stamping die, a U-shaped hole is formed on the connecting piece 2, and the remaining part is folded over to simultaneously form the second opening 23 and the second support edge 24.

[0038] After subsequent measurements, the height dimension of the support along the second 24 is precision machined to ensure that the height dimension of each support along the second 24 is the same.

[0039] The connecting piece 2 has a protruding reinforcing part 3 at its center, and the opening 21 is located at the reinforcing part 3.

[0040] The reinforcement part 3 can effectively improve the strength of the socket.

[0041] The connecting piece 2 has a protruding reinforcing part 2 4 at its edge, and the aforementioned opening 23 is located at the reinforcing part 2 4.

[0042] The reinforcement part 24 can effectively pre-position the strength of the location.

[0043] The first reinforcement part 3, the second reinforcement part 4, and the connecting piece 2 are an integral structure.

[0044] The second reinforcement part 4 extends from the edge of the connecting piece 2 to the first reinforcement part 4, and the first reinforcement part 3 is flush with the second reinforcement part 4.

[0045] This effectively improves the structural compactness of the connecting piece 2.

[0046] The width dimension of the support along the second 24 is 2 / 3 of the width dimension of the reinforcement part 3. Depending on the actual situation, it is also feasible for the width dimension of the support along the second 24 to be 3 / 4 of the width dimension of the reinforcement part 3.

[0047] The support with a relatively large width dimension along the second 24 can ensure that the pre-support part has sufficient strength.

[0048] A battery cover includes an upper plastic 7, a substrate 6, a lower plastic 5, and a connecting piece 2. The upper plastic 7 is fixed to the upper part of the substrate 6, the lower plastic 5 is fixed to the lower part of the substrate 6, and the connecting piece 2 is located below the lower plastic 5. A connecting structure is located between the connecting piece 2 and the lower plastic 5.

[0049] The connection structure between the electrode post and the connecting piece achieves pre-positioning of the connecting piece and the lower end of the electrode post through the sleeve part. The pre-positioning part ensures that the connecting piece and the lower plastic maintain a stable parallel state. Therefore, after the electrode post and the connecting piece are welded, the connecting piece will not be significantly skewed, and its yield rate is relatively high.

[0050] 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's technical solution are the same as or can be implemented using existing technologies, and will not be described in detail here.

[0051] 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, and 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 connection structure between an electrode post and a connecting piece, wherein the electrode post is cylindrical and is inserted into a lower plastic substrate, the lower end of the electrode post extending out of the lower plastic substrate, and the connecting piece is located at the lower part of the lower plastic substrate and the lower end of the electrode post is connected to the connecting piece, characterized in that, This connection structure is located between the lower end of the pole post and the connecting piece. The center of the connecting piece has a sleeve portion that can cover the outside of the pole post. The edge of the connecting piece has several protruding prepositioning portions. When the lower end of the pole post is embedded in the sleeve portion, the aforementioned prepositioning portions abut against the lower part of the lower plastic and the connecting piece is parallel to the lower plastic.

2. The connection structure between the pole post and the connecting piece according to claim 1, characterized in that, The connecting piece has several circumferentially distributed openings at its center, and one side of each opening has an upwardly folded and protruding support edge. The several circumferentially distributed support edges form the aforementioned sleeve portion.

3. The connection structure between the pole post and the connecting piece according to claim 2, characterized in that, A plurality of openings are arranged adjacently and a plurality of openings form a multi-hole hollow structure in the middle of the connecting piece. The lower end of the aforementioned pole abuts against the welding part and the two are fixedly connected by welding.

4. The connection structure between the pole post and the connecting piece according to claim 3, characterized in that, The connecting piece has several circumferentially distributed openings at its edge, and the openings have upwardly folded support edges, which together form the aforementioned prepositioning portion.

5. The connection structure between the pole post and the connecting piece according to claim 4, characterized in that, The connecting piece has a protruding reinforcing part at its center, and the aforementioned opening is located at one point of the reinforcing part.

6. The connection structure between the pole post and the connecting piece according to claim 5, characterized in that, The connecting piece has a protruding reinforcing part two at its edge, and the aforementioned opening two is located at the reinforcing part two.

7. The connection structure between the pole post and the connecting piece according to claim 6, characterized in that, The first reinforcement part, the second reinforcement part, and the connecting piece are an integral structure.

8. The connection structure between the pole post and the connecting piece according to claim 6, characterized in that, The second reinforcement part extends from the edge of the connecting piece to the first reinforcement part, and the first reinforcement part is flush with the second reinforcement part.

9. The connection structure between the pole post and the connecting piece according to claim 5, characterized in that, The width dimension of the support is 2 / 3 to 3 / 4 of the width dimension of the reinforcement part.

10. A battery cover, characterized in that, It includes an upper plastic, a substrate, a lower plastic, and a connecting piece. The upper plastic is fixed to the upper part of the substrate, the lower plastic is fixed to the lower part of the substrate, and the connecting piece is located below the lower plastic. The connecting structure of any one of claims 1-9 is located between the connecting piece and the lower plastic.

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