Battery cover plate with structural stability

Abstract

The utility model relates to the technical fields of battery cover plate discloses the battery cover plate of stable structure, including top cover piece and pole, top cover piece has pole hole in it, and the top cover piece is protruding and has the surrounding wall, and the surrounding wall is enclosed and forms the enclosed area, and the surrounding wall has the curved section, the pole has the upper section and lower section, the upper section passes through the enclosed area, and the upper section has the upper interval between the surrounding wall, the lower section passes through the pole hole, and the lower section has the lower interval between the pole hole, the top cover piece injection moulded has the upper plastic piece, the upper plastic piece fills into the upper interval, and the upper plastic piece is wrapped the surrounding wall and the upper section, through forming the surrounding wall, the surrounding wall forms the curved section, and the curved section is curved to the enclosed area, the upper section passes through the enclosed area, and the upper plastic piece injection moulded fills into the upper interval, and the surrounding wall and the upper section are wrapped, to make the pole and the top cover piece combine as the stable whole, to make the battery cover plate structure stable.

Description

Technical Field

[0001] This utility model patent relates to the technical field of battery cover plates, and more specifically, to a battery cover plate with a stable structure. Background Technology

[0002] The battery cover is an important component of the battery. It includes a top cover plate, through which terminals are inserted. These terminals are connected to the battery cells and to external devices, thus enabling the battery to supply power.

[0003] The top cover has a terminal post inserted into it. The upper plastic part is formed by injection molding on the top cover. In order to make the terminal post and the top cover a whole, a relatively complex assembly structure is often required on the top cover. However, the current battery cover has an unstable connection between the terminal post and the top cover, resulting in an unstable battery cover structure. Utility Model Content

[0004] The purpose of this invention is to provide a battery cover with a stable structure, thereby solving the problem of unstable battery cover structure in the prior art.

[0005] This utility model is implemented as follows: a structurally stable battery cover plate includes a top cover plate and a terminal post. The top cover plate has a terminal post hole, and a surrounding wall protrudes from the top cover plate. The surrounding wall is arranged around the outer periphery of the terminal post hole, and the surrounding wall encloses and forms a surrounding area. The upper part of the surrounding wall bends toward the surrounding area to form a curved section. The upper part of the pole post has an upper section that passes through the enclosing area and extends above the enclosing wall, with an upper gap between the upper section and the enclosing wall; the lower part of the pole post has a lower section that passes through the pole post hole and extends below the top cover plate, with a lower gap between the lower section and the pole post hole. An upper plastic part is injection molded on the top cover plate. The upper plastic part fills the upper gap and wraps around the enclosure wall and the upper section, fixing the pole post and the top cover plate relative to each other.

[0006] Furthermore, the upper plastic part includes an outer ring portion that wraps around the outer periphery of the enclosure wall from the outside in, and the outer ring portion is arranged around the periphery of the pole post.

[0007] Furthermore, the outer ring portion covers the curved section from top to bottom.

[0008] Furthermore, the upper plastic part includes an inner ring portion, which is embedded in the enclosing area, fills the upper gap, and wraps around the outer periphery of the upper section and is fixedly abutted against the enclosing wall.

[0009] Furthermore, the inner ring portion and the outer ring portion are integrally formed, and the curved segment has an end head facing the upper segment, the end head being wrapped in the upper plastic part.

[0010] Furthermore, the outer periphery of the pole post is provided with an outer peripheral wall, which is arranged around the pole post in a circumferential direction and is located between the upper section and the lower section. The top cover has an annular portion located at the bottom of the enclosed area and forming the pole hole. A sealing ring is provided on the annular portion, and the bottom of the sealing ring is fixed. The bottom of the outer peripheral wall presses against the top of the sealing ring from top to bottom. The top of the inner ring portion is connected to the outer ring portion as a whole, and the bottom of the inner ring portion abuts against the top of the outer peripheral wall.

[0011] Furthermore, the outer periphery of the outer wall is wrapped with a plastic insert, which abuts against the inner sidewall of the enclosing wall.

[0012] Furthermore, the plastic insert includes a longitudinal section that wraps around the outer periphery of the outer peripheral wall, the longitudinal section abutting against the inner sidewall of the enclosing wall, the bottom of the longitudinal section abutting against the sealing ring, and the top of the longitudinal section extending to form a horizontal section that abuts against the top of the outer peripheral wall and abuts against the upper plastic part.

[0013] Furthermore, the outer periphery of the sealing ring extends into an outer ring, which is arranged around the circumference of the sealing ring. The bottom of the longitudinal section abuts against the outer ring, and there is an elastic gap between the outer ring and the annular portion.

[0014] Furthermore, the bottom of the top cover sheet is provided with a lower plastic part, and a protruding ring is provided on the lower plastic part. The protruding ring is embedded in the lower gap and abuts against the top cover sheet, so that the lower plastic part and the top cover sheet are relatively fixed.

[0015] Compared with the prior art, the battery cover plate provided by this utility model has a stable structure. By forming an enclosing wall with a curved section that bends toward the enclosing area, and an upper section passing through the enclosing area, an injection-molded upper part fills the upper gap and wraps the enclosing wall and the upper section, so that the terminal post and the top cover plate are combined into a stable whole, thus making the battery cover plate structure stable. Attached Figure Description

[0016] Figure 1 This is a cross-sectional schematic diagram of the structurally stable battery cover provided by this utility model; Figure 2 yes Figure 1 Enlarged diagram of point A in the diagram; Figure 3 This is a three-dimensional exploded view of the structurally stable battery cover provided by this utility model. Detailed Implementation

[0017] 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.

[0018] The implementation of this utility model will be described in detail below with reference to specific embodiments.

[0019] 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.

[0020] Reference Figure 1-3 The image shown is a preferred embodiment of the present invention.

[0021] The structurally robust battery cover includes a top cover plate 800 and a terminal post 100. The top cover plate 800 has a terminal post hole, and a surrounding wall 300 protrudes from the top cover plate 800. The surrounding wall 300 is arranged around the outer periphery of the terminal post hole, and the surrounding wall 300 encloses and forms a surrounding area 303. The upper part of the surrounding wall 300 bends toward the surrounding area 303 to form a bent section 301. The upper part of the pole post 100 has an upper section 101 that passes through the enclosing area 303 and extends above the enclosing wall 300, with an upper gap between the upper section 101 and the enclosing wall 300; the lower part of the pole post 100 has a lower section 102 that passes through the pole post hole and extends below the top cover plate 800, with a lower gap 103 between the lower section 102 and the pole post hole. The top cover plate 800 has an upper plastic part 200 injection molded on it. The upper plastic part 200 fills the upper space and wraps around the enclosure wall 300 and the upper section 101, fixing the pole post 100 and the top cover plate 800 relative to each other.

[0022] The aforementioned structurally stable battery cover plate, by forming an enclosure wall 300, the enclosure wall 300 having a curved section 301, the curved section 301 bending toward the enclosure area 303, the upper section 101 passing through the enclosure area 303, the injection-molded upper plastic part 200 filling into the upper gap and wrapping the enclosure wall 300 and the upper section 101, so that the terminal post 100 and the top cover plate 800 are combined into a stable whole, so that the battery cover plate structure is stable.

[0023] In this embodiment, the upper plastic part 200 includes an outer ring portion 201, which wraps around the outer periphery of the enclosure wall 300 from the outside to the inside. The outer ring portion 201 is arranged around the periphery of the pole post 100. In this way, the outer ring portion 201 wraps around the outer periphery of the enclosure wall 300, so that the upper plastic part 200 and the enclosure wall 300 are firmly bonded.

[0024] In this embodiment, the outer ring portion 201 covers the curved section 301 from top to bottom. The outer ring portion 201 wraps around the curved section 301 from the outside, which facilitates the forming of the outer ring portion 201 and makes the connection between the outer ring portion 201 and the enclosure wall 300 more stable.

[0025] In this embodiment, the upper plastic part 200 includes an inner ring portion 202, which is embedded in the enclosing area 303, filling the upper gap. The inner ring portion 202 wraps around the outer periphery of the upper section 101 and is fixedly abutted against the enclosing wall 300. In this way, the inner ring portion 202 is firmly connected to the upper section 101 and fixedly connected to the enclosing wall 300, so that the upper section 101 and the enclosing wall 300 are integrated as one unit.

[0026] In this embodiment, the inner ring portion 202 and the outer ring portion 201 are integrally formed, and the curved section 301 has an end head 302 facing the upper section 101, which is wrapped in the upper plastic part 200. In this way, since the curved section 301 is arranged in a curved manner and is wrapped in the upper plastic part 200, the upper plastic part 200 and the enclosing wall 300 can be firmly connected.

[0027] In this embodiment, an outer peripheral wall 104 protrudes from the outer periphery of the pole post 100. The outer peripheral wall 104 is arranged around the circumference of the pole post 100 and is located between the upper section 101 and the lower section 102. The top cover plate 800 has an annular portion 801, which is located at the bottom of the enclosing area 303 and encloses to form the pole post hole. A sealing ring 400 is provided on the annular portion 801. The bottom of the sealing ring 400 is fixed, and the bottom of the outer peripheral wall 104 presses against the top of the sealing ring 400 from top to bottom. The top of the inner ring portion 202 is connected to the outer ring portion 201 as a whole, and the bottom of the inner ring portion 202 abuts against the top of the outer peripheral wall 104.

[0028] By arranging the sealing ring 400, a seal can be achieved between the pole post 100 and the pole post hole of the top cover plate 800. The annular portion 801 of the sealing ring 400 is arranged between and clamped and fixed to the outer peripheral wall 104, which facilitates the arrangement of the sealing ring 400.

[0029] In this embodiment, the outer periphery of the outer peripheral wall 104 is wrapped with a plastic insert 600, which abuts against the inner sidewall of the enclosing wall 300. By arranging the plastic insert 600 and placing it in the enclosing area 303, abutting against the inner sidewall of the enclosing wall 300, it is convenient to injection mold the upper plastic part 200, avoids the formation of a hollow area in the enclosing area 303, and improves the insulation between the top cover 800 and the pole post 100.

[0030] In this embodiment, the plastic insert 600 includes a longitudinal section 601 that wraps around the outer periphery of the outer peripheral wall 104. The longitudinal section 601 abuts against the inner sidewall of the enclosing wall 300. The bottom of the longitudinal section 601 abuts against the sealing ring 400. The top of the longitudinal section 601 extends to form a horizontal section 602. The horizontal section 602 abuts against the top of the outer peripheral wall 104 and abuts against the upper plastic part 200.

[0031] The plastic insert 600 includes a longitudinal section 601 and a horizontal section 602. That is, the plastic insert 600 is curved, which makes it easy for the plastic insert 600 to wrap around the outer periphery of the outer peripheral wall 104 and to fix the plastic insert 600 in the enclosed area 303.

[0032] In this embodiment, an outer ring 401 extends from the outer periphery of the sealing ring 400. The outer ring 401 is arranged around the circumference of the sealing ring 400, and the bottom of the longitudinal section 601 abuts against the outer ring 401. An elastic gap 402 exists between the outer ring 401 and the annular portion 801. In this way, by forming the elastic gap 402, the elastic deformation of the sealing ring 400 is facilitated, further enhancing the sealing performance.

[0033] In this embodiment, the bottom of the top cover plate 800 is provided with a lower plastic part 500, and a protruding ring 501 is provided on the lower plastic part 500. The protruding ring 501 is embedded in the lower spacer 103 and abuts against the top cover plate 800, so that the lower plastic part 500 and the top cover plate 800 are relatively fixed. The protruding ring 501 is directly embedded in the lower spacer 103, which does not require welding operation and is convenient for assembly.

[0034] 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 structurally robust battery cover, characterized in that, It includes a top cover plate and an electrode post. The top cover plate has an electrode post hole and a surrounding wall protruding from the top cover plate. The surrounding wall is arranged around the outer periphery of the electrode post hole and the surrounding wall encloses and forms a surrounding area. The upper part of the surrounding wall bends toward the surrounding area to form a curved section. The upper part of the pole post has an upper section that passes through the enclosing area and extends above the enclosing wall, with an upper gap between the upper section and the enclosing wall; the lower part of the pole post has a lower section that passes through the pole post hole and extends below the top cover plate, with a lower gap between the lower section and the pole post hole. An upper plastic part is injection molded on the top cover plate. The upper plastic part fills the upper gap and wraps around the enclosure wall and the upper section, fixing the pole post and the top cover plate relative to each other.

2. The structurally stable battery cover as described in claim 1, characterized in that, The upper plastic part includes an outer ring portion, which wraps around the outer periphery of the enclosure wall from the outside to the inside, and the outer ring portion is arranged around the periphery of the pole post.

3. The structurally stable battery cover as described in claim 2, characterized in that, The outer ring covers the curved section from top to bottom.

4. The structurally stable battery cover as described in claim 2, characterized in that, The upper plastic part includes an inner ring portion, which is embedded in the enclosing area and fills the upper gap. The inner ring portion wraps around the outer periphery of the upper section and is fixedly abutted against the enclosing wall.

5. The structurally stable battery cover as described in claim 4, characterized in that, The inner ring and the outer ring are integrally formed, and the curved section has an end head facing the upper section, which is wrapped in the upper plastic part.

6. The structurally stable battery cover as described in claim 5, characterized in that, The outer periphery of the pole post is provided with an outer peripheral wall, which is arranged around the pole post in a circumferential direction and is located between the upper section and the lower section. The top cover has an annular portion located at the bottom of the enclosed area and forming the pole hole. A sealing ring is provided on the annular portion, and the bottom of the sealing ring is fixed. The bottom of the outer peripheral wall presses against the top of the sealing ring from top to bottom. The top of the inner ring portion is connected to the outer ring portion as a whole, and the bottom of the inner ring portion abuts against the top of the outer peripheral wall.

7. The structurally stable battery cover as described in claim 6, characterized in that, The outer periphery of the outer wall is wrapped with a plastic insert, which abuts against the inner sidewall of the enclosing wall.

8. The structurally stable battery cover as described in claim 7, characterized in that, The plastic insert includes a longitudinal section that wraps around the outer periphery of the outer peripheral wall, the longitudinal section abutting against the inner sidewall of the enclosing wall, the bottom of the longitudinal section abutting against the sealing ring, and the top of the longitudinal section extending to form a horizontal section that abuts against the top of the outer peripheral wall and abuts against the upper plastic part.

9. The structurally stable battery cover as described in claim 8, characterized in that, The outer periphery of the sealing ring extends into an outer ring, which is arranged around the circumference of the sealing ring. The bottom of the longitudinal section abuts against the outer ring, and there is an elastic gap between the outer ring and the annular portion.

10. The structurally robust battery cover as described in any one of claims 1 to 9, characterized in that, The bottom of the top cover sheet is provided with a lower plastic part, and a protruding ring is provided on the lower plastic part. The protruding ring is embedded in the lower gap and abuts against the top cover sheet so that the lower plastic part is fixed relative to the top cover sheet.

Images