CN220585451U

CN220585451U - Take utmost point post, top cap subassembly and secondary cell of brazing of location muscle

Info

Publication number: CN220585451U
Application number: CN202322026038.3U
Authority: CN
Inventors: 王雷; 方仁杰; 宋义根; 邓平华; 王世杰
Original assignee: Jiangxi Baisili New Energy Technology Co ltd
Current assignee: Jiangxi Baisili New Energy Technology Co ltd
Priority date: 2023-07-31
Filing date: 2023-07-31
Publication date: 2024-03-12
Anticipated expiration: 2033-07-31

Abstract

The utility model discloses a brazing pole with a positioning rib, a top cover assembly and a secondary battery, wherein the brazing pole comprises a base and an upper cover; the base is provided with a containing cavity, the upper cover is provided with a boss matched with the containing cavity, and the boss is connected with the containing cavity in a brazing mode; the side face of the boss or the cavity wall of the accommodating cavity is provided with a plurality of positioning convex ribs. According to the utility model, the base and the upper cover are connected by brazing, so that the copper-aluminum interface of the base and the upper cover can bear great tensile force, and the service life of the pole is prolonged; meanwhile, the side surface of the boss or the cavity wall of the accommodating cavity is provided with a plurality of positioning convex ribs, so that poor welding caused by shaking caused by filling brazing materials at the joint position of the boss and the accommodating cavity can be avoided.

Description

Take utmost point post, top cap subassembly and secondary cell of brazing of location muscle

Technical Field

The utility model relates to the technical field of batteries, in particular to a brazing pole with a positioning rib, a top cover assembly and a secondary battery.

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 cathode column material of the battery top cover in the prior art is usually a copper-aluminum composite material, the processing mode selectivity is limited due to different plasticity of two different materials in the processing process, the conventional copper-aluminum friction welding or direct copper-aluminum composite plate is generally used at present, but the processing mode efficiency of the friction welding copper-aluminum interface is lower, the copper-aluminum composite plate is less in optional process after material limitation feeding, and the copper-aluminum interface of the copper-aluminum composite plate cannot bear great tensile force.

Disclosure of Invention

The utility model aims to solve the problems that: the brazing pole with the positioning ribs, the top cover assembly and the secondary battery are provided, and the base and the upper cover are connected by brazing, so that the copper-aluminum interface of the base and the upper cover can bear great tensile force, and the service life of the pole is prolonged; meanwhile, the side surface of the boss or the cavity wall of the accommodating cavity is provided with a plurality of positioning convex ribs, so that poor welding caused by shaking caused by filling brazing materials at the joint position of the boss and the accommodating cavity can be avoided.

The technical scheme provided by the utility model for solving the problems is as follows: a brazing pole with a positioning rib comprises a base and an upper cover;

the base is provided with a containing cavity, the upper cover is provided with a boss matched with the containing cavity, and the boss is connected with the containing cavity in a brazing mode;

the side face of the boss or the cavity wall of the accommodating cavity is provided with a plurality of positioning convex ribs.

Preferably, the positioning ribs are uniformly distributed on the side surface of the boss or the cavity wall of the accommodating cavity.

Preferably, the positioning ribs are integrally formed with the boss or the cavity wall of the accommodating cavity.

Preferably, the accommodating cavity and the boss are rectangular.

Preferably, the base is a copper part, and the upper cover is an aluminum part.

Preferably, the base is an aluminum piece, and the upper cover is a copper piece.

The utility model also discloses a top cover assembly, which comprises the brazing pole with the positioning rib.

The utility model also discloses a secondary battery comprising the top cover assembly.

Compared with the prior art, the utility model has the advantages that: according to the utility model, the base and the upper cover are connected by brazing, so that the copper-aluminum interface of the base and the upper cover can bear great tensile force, and the service life of the pole is prolonged; meanwhile, the side surface of the boss or the cavity wall of the accommodating cavity is provided with a plurality of positioning convex ribs, so that poor welding caused by shaking caused by filling brazing materials at the joint position of the boss and the accommodating cavity can be avoided.

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 perspective view of the present utility model;

FIG. 2 is a schematic view showing the structure of the upper cover according to embodiment 1 of the present utility model;

FIG. 3 is a schematic view showing the structure of the upper cover of embodiment 1 of the present utility model;

FIG. 4 is a schematic view showing the structure of a base according to embodiment 1 of the present utility model;

FIG. 5 is a schematic view showing the structure of a base according to embodiment 1 of the present utility model;

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

FIG. 7 is a schematic view showing the structure of the upper cover according to embodiment 2 of the present utility model;

fig. 8 is a schematic view showing the structure of the upper cover of embodiment 2 of the present utility model;

FIG. 9 is a schematic view showing the structure of a base according to embodiment 2 of the present utility model;

FIG. 10 is a schematic view showing the structure of a base according to embodiment 2 of the present utility model;

FIG. 11 is an enlarged schematic view at B in FIG. 8;

fig. 12 is a cross-sectional view of the present utility model.

The drawings are marked: 1. the upper cover, 2, the base, 3, hold the chamber, 4, boss, 5, location protruding muscle, 6, brazing material.

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

1-6, a brazing pole with a positioning rib comprises a base 2 and an upper cover 1;

the base 2 is provided with a containing cavity 3, the upper cover 1 is provided with a boss 4 matched with the containing cavity 3, and the boss 4 is in braze welding connection with the containing cavity 3;

the side of the boss 4 is provided with a plurality of positioning convex ribs 5.

In the scheme, the base and the upper cover are connected by brazing, so that the copper-aluminum interface of the base and the upper cover can bear great tensile force, and the service life of the pole is prolonged.

Wherein, it is to be noted that, owing to adopt brazing welding, consequently the boss must fill brazing material with holding the hookup location in chamber, can produce between the part like this and rock, lead to welding failure, this scheme sets up a plurality of location protruding muscle on the side of boss or holding the chamber wall in chamber, can effectually avoid because boss and holding the hookup location in chamber and need filling brazing material and produce the welding failure that rocks and lead to.

Specifically, as shown in fig. 5, a plurality of positioning ribs 5 are uniformly distributed on the side surface of the boss 4, and one positioning rib is provided on each side surface of the boss 4, and of course, two or more positioning ribs may be provided according to actual situations, which is not particularly limited in this embodiment.

Wherein, in order to facilitate the processing and promote the stability of being connected between location protruding muscle and the boss, will location protruding muscle 5 adopts integrated into one piece's processing method with boss 4.

Wherein, the accommodating cavity 3 and the boss 4 are rectangular, and specifically, the accommodating cavity 3 and the boss 4 may be circular or polygonal with other shapes.

In this embodiment, the base is a copper part, and the upper cover is an aluminum part.

Example 2

A brazing pole with positioning ribs comprises a base 2 and an upper cover 1;

a plurality of positioning ribs 5 are arranged on the cavity wall of the accommodating cavity.

Wherein, a plurality of the positioning ribs 5 are uniformly distributed on the cavity wall of the accommodating cavity.

In this embodiment, the positioning ribs 5 are integrally formed with the cavity wall of the accommodating cavity.

Wherein, hold chamber 3 and boss 4 all are the rectangle.

Example 3

The difference between this embodiment and embodiment 1 is that the base 2 is an aluminum product, the upper cover 1 is a copper product, and the rest of the structure is the same as that of embodiment 1, and will not be described here again.

Example 4

The difference between the present embodiment and embodiment 2 is that the base 2 is an aluminum product, the upper cover 1 is a copper product, and the rest of the structure is the same as that of embodiment 2, and will not be described here again.

Example 5

The present embodiment discloses a top cap assembly comprising a brazed post with locating ribs as described in any one of embodiments 1-4.

In this embodiment, it should be noted that the rest of the structural components of the top cover assembly belong to the prior art, and those skilled in the art can design the top cover assembly according to needs, and in this embodiment, the description is omitted.

Example 6

This embodiment discloses a secondary battery including a top cap assembly as described in embodiment 5.

In this embodiment, it should be noted that, the remaining structural components of the secondary battery in this embodiment belong to the prior art, and those skilled in the art can design the secondary battery according to needs, which will not be described in detail in this embodiment.

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. The utility model provides a take brazing post of location muscle which characterized in that: comprises a base (2) and an upper cover (1);

the base (2) is provided with a containing cavity (3), the upper cover (1) is provided with a boss (4) matched with the containing cavity (3), and the boss (4) is connected with the containing cavity (3) in a brazing mode;

the side surface of the boss (4) or the cavity wall of the accommodating cavity (3) is provided with a plurality of positioning convex ribs (5).

2. The brazed pole with locating ribs of claim 1, wherein: the positioning ribs (5) are uniformly distributed on the side surface of the boss (4) or on the cavity wall of the accommodating cavity (3).

3. The brazed pole with locating ribs of claim 1, wherein: the positioning convex rib (5) and the boss (4) or the cavity wall of the accommodating cavity (3) are integrally formed.

4. The brazed pole with locating ribs of claim 1, wherein: the accommodating cavity (3) and the boss (4) are rectangular.

5. The brazed pole with locating ribs of claim 1, wherein: the base (2) is a copper product, and the upper cover (1) is an aluminum product.

6. The brazed pole with locating ribs of claim 1, wherein: the base (2) is made of aluminum, and the upper cover (1) is made of copper.

7. A top cap subassembly, characterized in that: a brazed pole comprising a locating rib according to any one of claims 1 to 6.

8. A secondary battery characterized in that: comprising a roof assembly as claimed in claim 7.