CN218939848U

CN218939848U - Battery top cover assembly

Info

Publication number: CN218939848U
Application number: CN202223226753.3U
Authority: CN
Inventors: 王雷; 王世杰; 邓平华; 宋义根
Original assignee: Jiangxi Baisili New Energy Technology Co ltd
Current assignee: Jiangxi Baisili New Energy Technology Co ltd
Priority date: 2022-11-30
Filing date: 2022-11-30
Publication date: 2023-04-28
Anticipated expiration: 2032-11-30

Abstract

The utility model discloses a battery top cover assembly, which comprises two pole assemblies; the battery pack further comprises a top cover plate and lower plastic, wherein the lower plastic is arranged on the lower end face of the top cover plate, and a flange for indirectly pressing the inner winding core of the winding core battery is arranged on the lower end face of the top cover plate. According to the utility model, the flange for indirectly pressing the inner winding core of the winding core battery is arranged on the lower end surface of the top cover sheet, so that the integral strength of the top cover assembly is ensured, and the integral thickness of the top cover assembly is reduced, and more inner space is reserved.

Description

Battery top cover assembly

Technical Field

The utility model relates to the technical field of batteries, in particular to a battery top cover assembly.

Background

In modern society, more and more electric tools and new energy vehicles are driven by power sources, and batteries are widely used in the electric tools and the new energy vehicles due to their excellent characteristics such as high capacity and high safety. These batteries should have good safety in addition to high capacity to meet the standards of use and to meet the needs of people.

The top cap subassembly of battery generally comprises top cap piece, lower plastic and utmost point post subassembly, and lower plastic is the part of rolling up core direct contact with battery inside, in order to guarantee that lower plastic can push down and roll up the core, so, the lower plastic is made and is all thicker just can guarantee its intensity, has just so led to top cap subassembly overall thickness great, has reduced the utilization ratio of inner space.

Disclosure of Invention

The utility model aims to solve the problems that: the utility model provides a battery top cap subassembly, the type is through setting up a flange that is used for indirectly pushing down the inside core of rolling up of core battery on the lower terminal surface of top cap piece, can reduce the holistic thickness of top cap subassembly when guaranteeing top cap subassembly bulk strength to more inner space is given up.

The technical scheme provided by the utility model for solving the problems is as follows: a battery top cap assembly comprising two post assemblies; the battery cover is characterized by further comprising a top cover sheet and lower plastic, wherein the lower plastic is arranged on the lower end face of the top cover sheet, and a flange for indirectly pressing the inner winding core of the battery is arranged on the lower end face of the top cover sheet.

Preferably, the pole assembly comprises a pole and an upper insulating part, wherein the top cover sheet and the lower plastic are respectively provided with a mounting hole for the pole to pass through, the pole sequentially passes through the lower plastic and the top cover sheet from bottom to top, and the insulating part is clamped at the upper end of the pole.

Preferably, the pole assembly further comprises a sealing ring, and the sealing ring is sleeved on the pole and located at the lower end of the lower plastic.

Preferably, a groove matched with the flange is formed in the upper end face of the lower plastic.

Preferably, a concave cavity is arranged on the lower end face of the lower plastic.

Preferably, the lower plastic is an insulating film.

Preferably, the flange is of a continuous reverse-word annular structure.

Preferably, the flange is a discontinuous multi-segment structure.

Compared with the prior art, the utility model has the advantages that: according to the utility model, the flange for indirectly pressing the inner winding core of the winding core battery is arranged on the lower end surface of the top cover sheet, so that the integral strength of the top cover assembly is ensured, and the integral thickness of the top cover assembly is reduced, and more inner space is reserved.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model and do not constitute a limitation on the utility model.

FIG. 1 is a schematic diagram of an explosive structure according to embodiment 1 of the present utility model;

FIG. 2 is a schematic view of an explosive structure in another direction of embodiment 1 of the present utility model;

FIG. 3 is a schematic diagram of example 1 of the present utility model;

FIG. 4 is an enlarged schematic view at A in FIG. 1;

FIG. 5 is a cross-sectional view of embodiment 1 of the present utility model;

FIG. 6 is an enlarged schematic view at B in FIG. 5;

FIG. 7 is a schematic view of an exploded structure of embodiment 2 of the present utility model;

fig. 8 is a schematic perspective view of embodiment 2 of the present utility model;

FIG. 9 is an enlarged schematic view at C in FIG. 7;

FIG. 10 is a cross-sectional view of embodiment 2 of the present utility model;

fig. 11 is an enlarged schematic view at D in fig. 10.

The drawings are marked: 1. the top cover plate, 2, lower plastic, 3, a groove, 4, a sealing ring, 5, a pole column, 6, a mounting hole, 7, an insulating part, 8, a concave cavity, 9 and a flange.

Detailed Description

The following detailed description of embodiments of the present utility model will be given with reference to the accompanying drawings and examples, by which the implementation process of how the present utility model can be applied to solve the technical problems and achieve the technical effects can be fully understood and implemented.

In the description of the present utility model, it should be noted that, for the azimuth words such as "center", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., the azimuth and positional relationships are based on the azimuth or positional relationships shown in the drawings, it is merely for convenience of describing the present utility model and simplifying the description, and it is not to be construed as limiting the specific scope of protection of the present utility model that the device or element referred to must have a specific azimuth configuration and operation.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features. Thus, the definition of "a first", "a second" or "a second" feature may explicitly or implicitly include one or more such feature, and in the description of the utility model, the meaning of "a number" is two or more, unless otherwise specifically defined.

In the present utility model, unless explicitly stated and limited otherwise, the terms "assembled," "connected," and "connected" are to be construed broadly, e.g., as being either fixedly connected, detachably connected, or integrally connected; or may be a mechanical connection; can be directly connected or connected through an intermediate medium, and can be communicated with the inside of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

It should be understood that the terms "comprises" and "comprising," when used in this specification and the appended claims, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.

It is also to be understood that the terminology used in the description of the embodiments of the utility model herein is for the purpose of describing particular embodiments only and is not intended to be limiting of embodiments of the utility model. As used in the specification of the embodiments of the utility model and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.

Example 1

As shown in fig. 1-6, a battery top cap assembly includes two post assemblies; the battery cover is characterized by further comprising a top cover sheet 1 and lower plastic 2, wherein the lower plastic 2 is arranged on the lower end face of the top cover sheet 1, and a flange 9 for indirectly pressing the inner winding core of the battery is arranged on the lower end face of the top cover sheet 1.

In this embodiment, as shown in fig. 2, the flange is in a continuous ring structure with a shape like a Chinese character 'hui' and is disposed on the lower end surface of the top cover sheet, and can indirectly press the winding core inside the battery after being mounted with the lower plastic.

The pole assembly comprises a pole 5 and an upper insulating piece 7, wherein mounting holes 6 for allowing the pole 5 to pass through are formed in the top cover piece 1 and the lower plastic 2, the pole 5 sequentially passes through the lower plastic 2 and the top cover piece 1 from bottom to top, and the insulating piece 7 is clamped at the upper end of the pole 5.

In the actual use process, one of the two pole assemblies is a negative pole, and the other pole is a positive pole.

Still further, the utmost point post subassembly still includes sealing washer 4, sealing washer 4 cover is established on utmost point post 5 and is located plastic 2 lower extreme down, and wherein, the sealing washer plays a sealed effect, promotes the sealing performance between utmost point post and the plastic down.

In this embodiment, the upper end surface of the lower plastic 2 is provided with a groove 3 matched with the flange 9, and the specific structure of the groove 3 is shown in fig. 4.

In this embodiment, a cavity 8 is provided on the lower end surface of the lower plastic 2, wherein the specific structure of the cavity 8 is shown in fig. 2.

Example 2

The difference between this embodiment and embodiment 1 is that the flange in this embodiment is shown in fig. 7-11, and the flange is in a discontinuous multi-section structure, that is, two sections of flanges are respectively arranged on the front and back and left and right sides of the lower end face of the top cover sheet, and correspondingly, four sections of grooves corresponding to the flanges are arranged on the lower plastic. The rest of the structure is the same as in embodiment 1.

Example 3

In this embodiment, the lower plastic is an insulating film, and can be attached to the lower end surface of the top cover sheet, so that the overall thickness of the top cover assembly is further reduced, and more internal space is further reserved.

The foregoing is illustrative of the preferred embodiments of the present utility model and is not to be construed as limiting the claims. The present utility model is not limited to the above embodiments, and the specific structure thereof is allowed to vary. All changes which come within the meaning and range of equivalency of the claims are to be embraced within their scope.

Claims

1. A battery top cap assembly comprising two post assemblies; the method is characterized in that: the battery cover is characterized by further comprising a top cover piece (1) and lower plastic (2), wherein the lower plastic (2) is arranged on the lower end face of the top cover piece (1), and a flange (9) for indirectly pressing the inner winding core of the battery is arranged on the lower end face of the top cover piece (1).

2. The battery top cap assembly according to claim 1, wherein: the pole assembly comprises a pole (5) and an upper insulating part (7), wherein the top cover sheet (1) and the lower plastic (2) are respectively provided with a mounting hole (6) for the pole (5) to pass through, the pole (5) sequentially passes through the lower plastic (2) and the top cover sheet (1) from bottom to top, and the insulating part (7) is clamped at the upper end of the pole (5).

3. The battery top cap assembly according to claim 2, wherein: the pole assembly further comprises a sealing ring (4), and the sealing ring (4) is sleeved on the pole (5) and located at the lower end of the lower plastic (2).

4. The battery top cap assembly according to claim 1, wherein: the upper end face of the lower plastic (2) is provided with a groove (3) matched with the flange (9).

5. The battery top cap assembly according to claim 4, wherein: the lower end face of the lower plastic (2) is provided with a concave cavity (8).

6. The battery top cap assembly according to claim 1, wherein: the lower plastic (2) is an insulating film.

7. The battery top cap assembly according to claim 1, wherein: the flange (9) is of a continuous reverse-character annular structure.

8. The battery top cap assembly according to claim 1, wherein: the flange (9) is of a discontinuous multi-section structure.