Top cover sheet connecting structure of upper plastic part and battery cover plate

Abstract

The utility model relates to the technical field of battery cover plate discloses upper plastic piece and top cover piece connecting structure and battery cover plate, upper plastic piece and top cover piece connecting structure include top cover piece, and top cover piece has the pole hole for the pole passing through in, and the top of top cover piece forms the enclosure wall of annular arrangement, and the enclosure wall is along the circumferential direction of pole hole and surrounds arrangement, and the outer periphery of enclosure wall has the outer peripheral side wall, top cover piece is equipped with upper plastic piece, and upper plastic piece is wrapped the outer peripheral side wall of enclosure wall, and upper plastic piece and outer peripheral side wall are concave and convex cooperation between, upper plastic piece is wrapped the outer periphery of enclosure wall, and it is concave and convex cooperation between enclosure wall, make upper plastic piece and the connection between enclosure wall more stable, and, upper plastic piece is wrapped the outer periphery of pole, and with pole fixed connection, like this, further improve the torsional value of pole, and the effect of preventing rotation is played to pole.

Description

Technical Field

[0001] This utility model patent relates to the technical field of battery cover plates, specifically to the connection structure between the upper plastic part and the top cover plate and the battery cover plate. Background Technology

[0002] The battery cover is an important component of the battery. It covers the top opening of the outer casing and forms a cavity with the outer casing to accommodate the battery cells. The battery cover includes a top cover sheet, through which the terminals are inserted; an upper plastic part is provided on the top cover sheet, which is connected to the top cover sheet and wraps around the outer periphery of the terminals, thereby fixing the terminals.

[0003] In the existing technology, the upper plastic part is connected to the top cover plate, but the connection between the upper plastic part and the top cover plate is not stable enough, which greatly reduces the anti-rotation capability of the pole. Utility Model Content

[0004] The purpose of this utility model is to provide a connection structure between the upper plastic part and the top cover plate, which aims to solve the problem of poor anti-rotation capability of the pole post in the prior art.

[0005] This utility model is implemented as follows: the upper plastic part and the top cover plate are connected by a structure including a top cover plate, the top cover plate having a pole hole, and a pole passing through the pole hole; the top of the top cover plate has a ring-shaped enclosure wall arranged around the pole hole in the circumference, the enclosure wall having an outer peripheral sidewall; the top cover plate is provided with an upper plastic part, the upper plastic part wrapping around the outer peripheral sidewall of the enclosure wall and wrapping around the outer periphery of the pole, the upper plastic part and the outer peripheral sidewall having a concave-convex fit.

[0006] Furthermore, the outer peripheral sidewall is recessed inward to form a recessed groove, and the outer side of the recessed groove has an outer opening. The upper plastic part is embedded in the recessed groove through the outer opening to form a concave-convex fit.

[0007] Furthermore, the recessed groove is arranged circumferentially around the outer peripheral sidewall.

[0008] Furthermore, the top of the top cover has a top surface, and the bottom of the recessed groove extends to the top surface.

[0009] Furthermore, the top of the recessed groove extends to the middle of the outer peripheral sidewall.

[0010] Furthermore, the inner side of the recessed groove has an inner wall, which is arranged to open outwards, and along the direction from bottom to top of the recessed groove, the inner wall is arranged to slope inwards.

[0011] Furthermore, the top of the recessed groove has a downward-facing top wall, and the top wall is provided with a plurality of upward-facing recessed holes, which are spaced apart along the circumference of the enclosing wall, and the upper plastic part is embedded in the recessed holes.

[0012] Furthermore, the top of the enclosing wall is bent toward the pole hole to form a bent section, which is enclosed in the upper plastic part.

[0013] Furthermore, there is an installation gap between the end of the bent section and the outer periphery of the pole post, the upper plastic part fills the installation gap, wraps around the outer periphery of the pole post, and the end of the bent section is wrapped in the upper plastic part.

[0014] Compared with the prior art, the connection structure between the upper plastic part and the top cover plate provided by this utility model has the upper plastic part covering the outer periphery of the enclosure wall and having a concave-convex fit with the enclosure wall, making the connection between the upper plastic part and the enclosure wall more stable. In addition, the upper plastic part covers the outer periphery of the pole post and is fixedly connected to the pole post, which further improves the torque value of the pole post and has an anti-rotation effect on the pole post.

[0015] This utility model also provides a battery cover, including the above-mentioned upper plastic part and top cover plate connection structure.

[0016] Compared with the prior art, the interlocking fit between the upper plastic part and the surrounding wall provided by this utility model makes the upper plastic part firmly connected, and the upper plastic part wraps around the terminal post and is fixedly connected to the terminal post. In this way, the terminal post is stably arranged, which plays a role in preventing the terminal post from rotating, enhances the torque value of the terminal post, and greatly improves the quality of the battery cover. Attached Figure Description

[0017] Fig. 1 This is a partial cross-sectional schematic diagram of the connection structure between the upper plastic part and the top cover plate provided by this utility model;

[0018] Fig. 2 This is a partial schematic diagram of the top cover sheet provided by this utility model;

[0019] Fig. 3 This is a partial cross-sectional schematic diagram of the enclosing wall provided by this utility model. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0021] The implementation of this utility model will be described in detail below with reference to specific embodiments.

[0022] In the accompanying drawings of this embodiment, the same or similar reference numerals correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "left," and "right" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0023] Reference Figs. 1-3 The image shown is a preferred embodiment of the present invention.

[0024] The upper plastic part and the top cover plate connection structure include a top cover plate 200, which has a pole hole and a pole 100 passing through the pole hole; a ring-shaped enclosure wall 201 is formed on the top of the top cover plate 200, which is arranged around the pole hole in the circumference, and the outer periphery of the enclosure wall 201 has an outer peripheral sidewall; an upper plastic part 300 is provided on the top cover plate 200, which wraps the outer peripheral sidewall of the enclosure wall 201 and the outer periphery of the pole 100, and the upper plastic part 300 and the outer peripheral sidewall are in a concave-convex fit.

[0025] The above-mentioned upper plastic part and top cover plate connection structure, the upper plastic part 300 wraps around the outer periphery of the enclosure wall 201 and has a concave-convex fit with the enclosure wall 201, making the connection between the upper plastic part 300 and the enclosure wall 201 more stable. In addition, the upper plastic part 300 wraps around the outer periphery of the pole post 100 and is fixedly connected to the pole post 100. In this way, the torque value of the pole post 100 is further improved, which has the effect of preventing the pole post 100 from rotating.

[0026] In this embodiment, the outer peripheral sidewall is recessed inward to form a recessed groove 203. The outer side of the recessed groove 203 has an outer opening. The upper plastic part 300 is embedded in the recessed groove 203 through the outer opening, forming a concave-convex fit. In this way, the upper plastic part 300 is embedded in the recessed groove 203, increasing the contact area between the upper plastic part 300 and the surrounding wall 201, and making the connection between the upper plastic part 300 and the surrounding wall 201 more stable.

[0027] In this embodiment, the recessed groove 203 is arranged circumferentially around the outer peripheral sidewall, so that a stable connection can be achieved in the entire circumferential direction, further strengthening the connection stability between the upper plastic part 300 and the enclosing wall 201.

[0028] In this embodiment, the top cover 200 has a top surface 205, and the bottom of the recessed groove 203 extends to the top surface 205. In this way, after the upper plastic part 300 is embedded in the recessed groove 203, it is simultaneously connected with the top surface 205, which further strengthens the connection stability between the upper plastic part 300 and the enclosure wall 201.

[0029] In this embodiment, the top of the recessed groove 203 extends to the middle of the outer peripheral sidewall.

[0030] In this embodiment, the inner side of the recessed groove 203 has an inner wall 2031, which is arranged to open outwards and is inclined inwards along the upward direction of the recessed groove 203. In this way, during the injection molding of the upper plastic part 300, it is convenient for the upper plastic part 300 to be embedded in the recessed groove 203.

[0031] In this embodiment, the top of the recessed groove 203 has a downward-facing top wall 2032, and the top wall 2032 is provided with a plurality of upward-facing recessed holes 2033. The plurality of recessed holes 2033 are arranged at intervals along the circumference of the enclosing wall 201, and the upper plastic part 300 is embedded in the recessed holes 2033. In this way, the upper plastic part 300 is embedded in the recessed groove 203 and simultaneously embedded in the plurality of recessed holes 2033, forming more connection positions with the enclosing wall 201, further strengthening the connection stability between the enclosing wall 201 and the upper plastic part 300.

[0032] In this embodiment, the top of the enclosing wall 201 is bent toward the pole hole to form a bent section 202. The bent section 202 is wrapped in the upper plastic part 300. In this way, the entire enclosing wall 201 is wrapped in the upper plastic part 300, and the connection between the upper plastic part 300 and the enclosing wall 201 is more stable.

[0033] In this embodiment, the electrode post 100 is inserted into the electrode post hole. There is an installation gap between the end of the bent section 202 and the outer periphery of the electrode post 100. The upper plastic part 300 fills the installation gap, and the end of the bent section 202 is enclosed within the upper plastic part 300, which abuts against the outer periphery of the electrode post 100. This achieves a wrapping connection between the upper plastic part 300 and the electrode post 100, and a stable connection between the upper plastic part 300 and the enclosing wall 201, thereby ensuring a stable connection of the electrode post 100 and preventing rotation.

[0034] This embodiment also provides a battery cover, including the above-mentioned upper plastic part and top cover plate connection structure. The upper plastic part 300 and the surrounding wall 201 have a concave-convex fit, which makes the upper plastic part 300 firmly connected. The upper plastic part 300 wraps around the terminal post 100 and is fixedly connected to the terminal post 100. In this way, the terminal post 100 is stably arranged, which plays a role in preventing the terminal post 100 from rotating, enhances the torque value of the terminal post 100, and greatly improves the quality of the battery cover.

[0035] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A connection structure between the upper plastic part and the top cover sheet, characterized in that, The device includes a top cover sheet with an electrode post hole through which an electrode post is inserted; a ring-shaped enclosure wall is formed on the top of the top cover sheet, the enclosure wall is arranged around the circumference of the electrode post hole, and the outer periphery of the enclosure wall has an outer peripheral sidewall; an upper plastic part is provided on the top cover sheet, the upper plastic part wraps around the outer peripheral sidewall of the enclosure wall and also wraps around the outer periphery of the electrode post, and the upper plastic part and the outer peripheral sidewall are in a concave-convex fit.

2. The connection structure between the upper plastic part and the top cover plate as described in claim 1, characterized in that, The outer peripheral sidewall is recessed inward to form a recessed groove. The outer side of the recessed groove has an outer opening. The upper plastic part is embedded in the recessed groove through the outer opening to form a concave-convex fit.

3. The connection structure between the upper plastic part and the top cover sheet as described in claim 2, characterized in that, The recessed groove is arranged circumferentially around the outer peripheral sidewall.

4. The connection structure between the upper plastic part and the top cover plate as described in claim 2, characterized in that, The top of the top cover has a top surface, and the bottom of the recessed groove extends to the top surface.

5. The connection structure between the upper plastic part and the top cover plate as described in claim 2, characterized in that, The top of the recessed groove extends to the middle of the outer peripheral sidewall.

6. The connection structure between the upper plastic part and the top cover plate as described in claim 2, characterized in that, The recessed groove has an inner wall on its inner side, which is arranged to open outwards and is inclined inwards along the bottom-up direction of the recessed groove.

7. The connection structure between the upper plastic part and the top cover sheet as described in claim 2, characterized in that, The top of the recessed groove has a downward-facing top wall, and the top wall has a plurality of upward-facing recessed holes. The plurality of recessed holes are arranged at intervals along the circumference of the enclosing wall, and the upper plastic part is embedded in the recessed holes.

8. The connection structure between the upper plastic part and the top cover sheet as described in any one of claims 1 to 7, characterized in that, The top of the enclosing wall is bent toward the pole hole to form a curved section, which is enclosed in the upper plastic part.

9. The connection structure between the upper plastic part and the top cover sheet as described in claim 8, characterized in that, There is an installation gap between the end of the curved section and the outer periphery of the pole post. The upper plastic part fills the installation gap, wraps around the outer periphery of the pole post, and the end of the curved section is wrapped in the upper plastic part.

10. A battery cover, characterized in that, The structure includes the connection structure between the plastic part and the top cover sheet as claimed in any one of claims 1 to 9.

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