CN-224217582-U - Lower plastic part and pole connection anti-rotation structure and battery cover plate

Abstract

The utility model relates to the technical field of polar posts, and discloses a lower plastic part and polar post connecting anti-rotation structure and a battery cover plate, wherein the lower plastic part and polar post connecting anti-rotation structure comprises a top cover plate, the lower plastic part is arranged below the top cover plate, the polar post is penetrated in the top cover plate, the top of the polar post is provided with a connecting sheet in a flat plate shape, and the connecting sheet is positioned below the lower plastic part; the utility model provides a connecting anti-rotation structure for a lower plastic part and a pole, wherein the lower plastic part is connected with the pole, the pole is arranged in a top cover plate in a penetrating way, the connecting piece is surrounded by the annular wall, and the connecting piece is relatively fixed by the annular wall to limit the rotation of the connecting piece, so that the pole is relatively fixed to limit the rotation of the pole, the torsion value of the pole is greatly increased, the anti-rotation effect is achieved, and the installation and the positioning of the pole are facilitated.

Inventors

• ZHANG YAHAO
• LIU JUNWEI

Assignees

• 广东力宏精密科技有限公司

Dates

Publication Date

20260508

Application Date

20250430

Claims (10)

1. 1. The lower plastic part and pole connection anti-rotation structure is characterized by comprising a top cover plate, wherein the lower plastic part is arranged below the top cover plate, a pole is arranged in the top cover plate in a penetrating mode, a connecting piece which is in a flat plate shape is arranged at the top of the pole, the connecting piece is located below the lower plastic part, an annular wall is formed at the bottom of the lower plastic part, the annular wall surrounds the periphery of the connecting piece, the connecting piece is relatively fixed, and the connecting piece is limited to rotate.
2. 2. The anti-rotation structure for connecting a lower plastic part with a pole according to claim 1, wherein the inner side wall of the annular wall is provided with an inner peripheral annular wall, the periphery of the connecting sheet is provided with an outer peripheral annular wall, and the inner peripheral annular wall abuts against the outer peripheral annular wall.
3. 3. The anti-rotation structure for connecting a lower plastic part with a pole according to claim 2, wherein the outer peripheral annular wall is non-circular, and the shape of the inner peripheral annular wall corresponds to that of the outer peripheral annular wall.
4. 4. A lower plastic part and pole connection anti-rotation structure according to claim 3, wherein the peripheral annular wall is square, the peripheral annular wall is provided with two adjacently arranged straight edges, an obliquely arranged inclined edge is arranged between the two straight edges, and the end parts of the inclined edges are respectively butted with the two straight edges.
5. 5. The structure for preventing rotation of a lower plastic part and a pole according to any one of claims 1 to 4, wherein a through hole is formed in the lower plastic part, the pole penetrates through the through hole, the annular wall encloses a limiting area, the limiting area is communicated with the through hole, and the connecting sheet is arranged in the limiting area.
6. 6. The anti-rotation structure for connecting a lower plastic part with a pole as claimed in claim 5, wherein the pole comprises a column body, the column body is abutted on the connecting sheet, and the column body passes through the through hole.
7. 7. The anti-rotation structure for connecting a lower plastic part with a pole according to claim 5, wherein the bottom of the connecting piece is provided with a bottom surface, the height of the annular wall is larger than the thickness of the connecting piece, and the bottom surface is sunk in the limiting area.
8. 8. The structure of claim 5, wherein the diameter of the limiting area is larger than that of the through hole, the lower plastic part has a limiting part exposed above the limiting area, and the top of the connecting piece has a top surface, and the top surface is abutted against the limiting part from bottom to top.
9. 9. The rotation preventing structure for connecting a lower plastic part with a pole as claimed in claim 8, wherein the limiting part is circumferentially arranged along the through hole.
10. 10. Battery cover plate, characterized in that it comprises a lower plastic part and a pole connection anti-rotation structure according to any one of claims 1 to 9.

Description

Lower plastic part and pole connection anti-rotation structure and battery cover plate Technical Field The utility model relates to the technical field of polar posts, in particular to a lower plastic part, a polar post connection anti-rotation structure and a battery cover plate. Background The battery cover plate is an important component part in the battery, and the battery cover plate is covered on the top opening of the shell, and forms a shell cavity for accommodating the battery cell with the shell. The battery cover plate comprises a top cover plate, a lower plastic part is arranged below the top cover plate, a pole is arranged in the top cover plate in a penetrating mode, meanwhile, the pole also penetrates through the lower plastic part, and the pole and the lower plastic part are relatively fixed. In the prior art, the pole penetrates through the lower plastic part, but the torsion value of the pole is smaller, and under the condition of external force, the pole is easy to rotate, so that the anti-rotation capability of the pole is poor. Disclosure of utility model The utility model aims to provide an anti-rotation structure for connecting a lower plastic part with a pole, and aims to solve the problem of poor anti-rotation capability of the pole in the prior art. The utility model discloses a lower plastic part and pole connection anti-rotation structure, which is realized by the following steps that the lower plastic part and the pole connection anti-rotation structure comprises a top cover plate, the lower plastic part is arranged below the top cover plate, the pole is penetrated in the top cover plate, a connecting piece in a flat plate shape is arranged at the top of the pole, the connecting piece is positioned below the lower plastic part, an annular wall is formed at the bottom of the lower plastic part, the annular wall surrounds the periphery of the connecting piece, and the connecting piece is relatively fixed to limit the rotation of the connecting piece. Further, the inner side wall of the annular wall is provided with an inner peripheral annular wall, the outer periphery of the connecting piece is provided with an outer peripheral annular wall, and the inner peripheral annular wall abuts against the outer peripheral annular wall. Further, the outer peripheral annular wall is non-circular, and the shape of the inner peripheral annular wall corresponds to that of the outer peripheral annular wall. Further, the peripheral annular wall is square, the peripheral annular wall is provided with two adjacently arranged straight edges, inclined edges which are obliquely arranged are arranged between the two straight edges, and the end parts of the inclined edges are respectively in butt joint with the two straight edges. Furthermore, a through hole is formed in the lower plastic part, the pole penetrates through the through hole, the annular wall is enclosed to form a limiting area, the limiting area is communicated with the through hole, and the connecting sheet is arranged in the limiting area. Further, the pole comprises a column body, the column body is abutted on the connecting sheet, and the column body penetrates through the through hole. Further, the bottom of the tab has a bottom face, the annular wall having a height greater than the thickness of the tab, the bottom face being recessed in the confinement region. Further, the diameter of the limiting area is larger than that of the through hole, the lower plastic part is provided with a limiting part exposed above the limiting area, the top of the connecting sheet is provided with a top surface, and the top surface is abutted against the limiting part from bottom to top. Further, the restriction portion is circumferentially arranged along the circumference of the through hole. Compared with the prior art, the anti-rotation structure for connecting the lower plastic part with the pole is provided, the pole is arranged in the top cover plate in a penetrating way, the connecting piece is surrounded by the annular wall, and the annular wall relatively fixes the connecting piece and limits the connecting piece to rotate, so that the pole is relatively fixed, the rotation of the pole is limited, the torsion value of the pole is greatly increased, the anti-rotation effect is achieved, and the installation and the positioning of the pole are facilitated. The utility model also provides a battery cover plate, which comprises the anti-rotation structure for connecting the lower plastic part with the pole. Compared with the prior art, the battery cover plate provided by the utility model has the advantages that the torsion value of the pole is increased by limiting the rotation of the connecting sheet by the annular wall, so that the effect of preventing the pole from rotating is achieved, the assembly of the battery cover plate is facilitated, and the quality of the battery cover plate is improved. Drawings FIG. 1 is a schematic bottom view of