CN220672813U

CN220672813U - Battery and electric equipment

Info

Publication number: CN220672813U
Application number: CN202322317177.1U
Authority: CN
Inventors: 丁坤; 冯笑; 王正伟; 朱华君
Original assignee: Xingheng Power Supply Chuzhou Co ltd; Phylion Battery Co Ltd
Current assignee: Xingheng Power Supply Chuzhou Co ltd; Phylion Battery Co Ltd
Priority date: 2023-08-28
Filing date: 2023-08-28
Publication date: 2024-03-26
Anticipated expiration: 2033-08-28

Abstract

The utility model relates to a battery and electric equipment, comprising: a housing; the battery cell is positioned on the inner side of the shell, and a pole group is arranged on the battery cell; the electric connecting piece comprises connecting parts and protruding parts which are integrally formed, wherein at least two protruding parts are arranged, the connecting parts are welded and fixed with the pole groups, and the protruding parts penetrate through the shell; the conductive pressing piece is positioned on the outer side of the shell, a plurality of mounting holes are formed in the conductive pressing piece, the mounting holes are in one-to-one correspondence with the protruding portions, and the conductive pressing piece is riveted with the protruding portions and welded and fixed. The welding structure between the pole and the connecting sheet is omitted, the stability of electric connection is good, the liquid leakage phenomenon is not easy to occur, and the battery quality is good.

Description

Battery and electric equipment

Technical Field

The utility model relates to the technical field of batteries, in particular to a battery and electric equipment.

Background

At present, for square batteries, the square batteries generally comprise a battery core, a pole group of the battery core, a connecting sheet and a pole post, when the square batteries are assembled, the pole group and the connecting sheet are generally welded, and then the pole post is welded on the connecting sheet, so that the following defects exist in the assembly and processing modes:

on one hand, as the pole and the connecting sheet are welded, the welding quality directly influences the quality of the battery in the welding process, and when the welding quality is poor, the battery is easy to leak;

on the other hand, in the welding process of the connecting piece and the pole, the situation of virtual welding and large welding resistance easily occurs.

Disclosure of Invention

Therefore, the utility model aims to solve the technical problems that in the welding process of the connecting sheet and the pole in the prior art, the conditions of cold joint and larger welding resistance are easy to generate, and the battery is easy to leak liquid.

In order to solve the above technical problems, the present utility model provides a battery, comprising:

a housing;

the battery cell is positioned on the inner side of the shell, and a pole group is arranged on the battery cell;

the electric connecting piece comprises connecting parts and protruding parts which are integrally formed, wherein at least two protruding parts are arranged, the connecting parts are welded and fixed with the pole groups, and the protruding parts penetrate through the shell;

the conductive pressing piece is positioned on the outer side of the shell, a plurality of mounting holes are formed in the conductive pressing piece, the mounting holes are in one-to-one correspondence with the protruding portions, and the conductive pressing piece is riveted with the protruding portions and welded and fixed.

In one embodiment of the utility model, an insulator is provided between the housing and the conductive pad.

In one embodiment of the present utility model, the housing is provided with a limiting groove, and the insulating member and the conductive pressing piece are both located in the limiting groove.

In one embodiment of the utility model, the electrical connector is formed by isopipe stretching.

In one embodiment of the utility model, the housing comprises:

a housing provided with an opening;

the first cover plate is arranged at the opening;

wherein, electrically conductive preforming is located the first apron outside.

In one embodiment of the utility model, a step surface is arranged on the lower side of the first cover plate, and a sealing ring is arranged between the first cover plate and the protruding part.

In one embodiment of the utility model, a first bracket is arranged in the shell and is fixed with the bushing of the battery cell, a yielding groove is formed in the first bracket, and the pole group extends out of the yielding groove.

In one embodiment of the utility model, the first bracket comprises a first sub-bracket and a second sub-bracket which are formed by splicing, and the first sub-bracket and the second sub-bracket are symmetrically arranged.

In one embodiment of the utility model, a second bracket is arranged in the shell, one end of the second bracket is abutted against the first cover plate on the shell, the other end of the second bracket is abutted against the first bracket, a limiting groove is formed in the second bracket, and the protruding part penetrates through the limiting groove.

The utility model discloses electric equipment, which comprises the battery.

Compared with the prior art, the technical scheme of the utility model has the following advantages:

1. according to the utility model, the electric connecting piece is arranged, the connecting part of the electric connecting piece is welded and fixed with the pole group, the connecting part is also positioned in the shell, the protruding part of the electric connecting piece penetrates out of the shell, the conductive pressing piece is arranged on the outer side of the shell, the conductive pressing piece is provided with the mounting hole, and the protruding part is arranged in the mounting hole, so that the conductive pressing piece is riveted with the protruding part, the conductive pressing piece is fixed with the protruding part, and then the conductive pressing piece is welded and fixed with the protruding part, so that the structural strength between the conductive pressing piece and the protruding part is ensured.

2. According to the utility model, the connecting piece and the pole are not required to be arranged, and the connecting piece and the pole are not required to be welded, and the electric connecting piece comprises the connecting part and the protruding part which are integrally formed, and is electrically connected with the pole group of the battery core through the connecting part and the conductive pressing piece through the protruding part, so that the electric conduction of the battery can be realized.

3. The utility model has high structural strength, and ensures the stability of electric connection and is not easy to generate liquid leakage because of omitting a welding structure between the pole and the connecting sheet.

Drawings

In order that the utility model may be more readily understood, a more particular description of the utility model will be rendered by reference to specific embodiments thereof that are illustrated in the appended drawings.

FIG. 1 is a schematic view of an electrical connector;

fig. 2 is a schematic structural view of a battery;

FIG. 3 is a partial cross-sectional view of a battery;

FIG. 4 is a schematic view of the structure of the insulator and the boss;

FIG. 5 is a schematic structural view of a limiting groove on the first cover plate;

FIG. 6 is a schematic view of the structure of the first and second brackets in the housing;

FIG. 7 is a schematic view of the structure of the first bracket and the pole set;

FIG. 8 is a schematic structural view of a first bracket;

fig. 9 is a schematic structural view of the first cover plate and the second cover plate.

Description of the specification reference numerals: 10. an electrical connection; 11. a connection part; 12. a boss; 20. a housing; 21. a first cover plate; 211. a limit groove; 22. a second cover plate; 30. conducting tabletting; 40. a seal ring; 50. a battery cell; 51. a pole group; 52. a bushing; 60. an insulating member; 70. a second bracket; 80. a first bracket; 801. a first sub-mount; 802. a second sub-mount; 803. and (5) giving way.

Detailed Description

Certain terms are used throughout the description and claims to refer to particular components. It will be appreciated by those of ordinary skill in the art that different terms may be used to refer to the same component. The description and claims do not take the form of an element differentiated by name, but rather by functionality. As used throughout the specification and claims, the word "comprise" is an open-ended term, and thus should be interpreted to mean "include, but not limited to. By "substantially" is meant that within an acceptable error range, a person skilled in the art can solve the technical problem within a certain error range, substantially achieving the technical effect. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Referring to fig. 1-8, the present utility model discloses a battery comprising a housing, a cell 50, an electrical connector 10 and a conductive tab 30.

Referring to fig. 2-3, the battery cell 50 is positioned inside the housing, and the battery cell 50 is provided with a pole group 51.

The electrical connector 10 includes an integrally formed connection portion 11 and a protrusion portion 12, wherein the protrusion portion 12 has at least two connection portions 11 and pole groups 51 welded together, and the protrusion portion 12 is penetrated by the housing.

The conductive pressing piece 30 is located on the outer side of the shell, a plurality of mounting holes are formed in the conductive pressing piece 30, the mounting holes are arranged in one-to-one correspondence with the protruding portions 12, and the conductive pressing piece 30 is riveted with the protruding portions 12 and welded and fixed.

The working principle of the utility model is as follows: in the utility model, by arranging the electric connector 10, the connecting part 11 of the electric connector 10 is welded and fixed with the pole group 51, the connecting part 11 is also positioned in the shell, the protruding part 12 of the electric connector 10 penetrates through the shell, the outer side of the shell is provided with the conductive pressing sheet 30, the conductive pressing sheet 30 is provided with a mounting hole, and the protruding part 12 is arranged in the mounting hole, so that the conductive pressing sheet 30 is riveted with the protruding part 12, the conductive pressing sheet 30 is fixed with the protruding part 12, and then the conductive pressing sheet 30 is welded and fixed with the protruding part 12, thereby ensuring the structural strength between the conductive pressing sheet 30 and the protruding part 12.

The utility model has the advantages that: according to the utility model, the connecting piece and the pole are not required to be arranged, and the connecting piece and the pole are not required to be welded, and the electric connector 10 comprises the connecting part 11 and the protruding part 12 which are integrally formed, and the connecting part 11 is electrically connected with the pole group 51 of the battery core 50, and the protruding part 12 is electrically connected with the conductive pressing piece 30, so that the electric conduction of the battery can be realized. The utility model has high structural strength, ensures the stability of electric connection and is not easy to generate liquid leakage because the welding between the pole and the connecting sheet is omitted.

The electrical connector of the present utility model is made of conductive metal, and may be copper or aluminum.

Referring to fig. 4, in the present utility model, an insulator 60 is provided between the housing and the conductive pad 30. When the shell of the battery is made of metal, the insulating piece 60 is arranged between the shell and the conductive pressing piece 30, and the insulating piece 60 can ensure that the conductive pressing piece 30 is insulated from the shell and prevent the battery from leaking electricity. Wherein, the insulating member 60 can be made of plastic material.

Further, referring to fig. 5, a limiting groove 211 is formed on the housing, and the insulating member 60 and the conductive pad 30 are both located in the limiting groove 211. The limit groove 211 may be rectangular, and correspondingly, the conductive pad 30 and the insulator 60 are rectangular. Through the limit groove, the conductive pressing piece 30, the insulating piece 60 and the protruding portion 12 can be guaranteed to have good concentricity, so that assembly accuracy and machining accuracy are guaranteed.

In the present utility model, the connection portion 11 is of a plate type, and the protrusion portion 12 is a cylindrical protrusion. Of course, the boss 12 may be provided in an oval shape or other shapes as desired. The protruding part 12 can have two, correspondingly, the mounting hole on the conductive pressing piece 30 also has two, and the internal diameter of two mounting holes is slightly less than the external diameter of protruding part 12, so that protruding part 12 is conveniently riveted into the mounting hole.

The electrical connector 10 is formed by equal wall stretching. Specifically, the electrical connector 10 having the convex portion 12 and the connection portion 11 can be obtained by stretching the plate member using the plate member of equal thickness.

Further, the housing comprises a shell 20 and a first cover plate 21, an opening is formed in the shell 20, the first cover plate 21 is arranged at the opening, and the conductive pressing piece 30 is located on the outer side of the first cover plate 21. The arrangement of the first cover plate 21 facilitates the housing of the battery cell 50 and the welding and fixing of the electric connector 10. The battery is square battery, and the shell is cuboid structure. In another embodiment, two openings are symmetrically arranged on the housing 20, and the first cover plate 21 also has two openings, and the two first cover plates 21 are respectively fixed at the openings.

Further, a step surface is arranged on the lower side of the first cover plate 21, a sealing ring 40 is arranged between the first cover plate 21 and the protruding portion 12, the sealing ring 40 is located in the step surface, and the sealing performance between the electric connecting piece 10 and the first cover plate 21 can be ensured by arranging the sealing ring 40, so that the assembly effect is improved. The lower surface of the first cover plate 21 is provided with a step surface, so that the sealing ring 40 can be limited. The sealing ring 40 may be a rubber ring.

Referring to fig. 3 and 7, a first bracket 80 is further provided in the housing, the first bracket 80 is fixed to the bushing 52 of the battery cell 50, a relief groove 803 is provided in the first bracket 80, and the pole group 51 extends from the relief groove 803.

Referring to fig. 8, the first stent 80 includes a first sub-stent 801 and a second sub-stent 802 formed by splicing, and the first sub-stent 801 and the second sub-stent 802 are symmetrically disposed. By providing the first sub-mount 801 and the second sub-mount 802, the mounting and fixing of the first mount 80 can be facilitated. The first sub-bracket 801 and the middle part of the second sub-bracket 802 are matched to form a yielding groove 803. The first bracket 80 is provided with a reinforcing rib, thus improving structural strength. In addition, positioning grooves may be provided on the first bracket 80 to facilitate positioning of the second bracket 70 described below. Through holes are formed through the first support 70, so that electrolyte can be conveniently injected into the battery later.

Referring to fig. 3 and 6, a second bracket 70 is disposed in the housing, one end of the second bracket 70 abuts against the first cover plate 21 on the housing, the other end of the second bracket 70 abuts against the first bracket 80, a limiting groove is formed in the second bracket 70, and the protruding portion 12 is penetrated by the limiting groove. The fixation of the pole group 51 and the electrical connector 10 is achieved by the cooperation of the first bracket 80 and the second bracket 70.

The assembly method of the utility model is as follows: firstly, the sealing element 40 is sleeved at the boss 12 of the electric connector 10, the electric connector 10 and the sealing element 40 pass through the second bracket 70, the boss 12 of the electric connector 10 passes through the second bracket 70, the first cover plate 21 is arranged under the electric connector 10, the insulating element 60 and the conductive pressing sheet 30 are sequentially arranged on the first cover plate 21, and finally, the conductive pressing sheet 30 and the boss 12 are riveted and welded and fixed. The electric core 50 and the second cover plate 22 are welded and then are installed into the bushing 52, the first bracket 80 is pressed on the other side of the electric core 50, the first bracket 80 is combined by the first sub-bracket 801 and the second sub-bracket 802, so that the electric core 50 is convenient to assemble, the first bracket 80 and the second cover plate 22 are fixed with the bushing 52 of the electric core 50 through ultrasonic welding or fusion welding, the electrode group 51 of the electric core 50 penetrates through the abdicating groove 803 of the first bracket 80, then the electrode group 51 is welded and fixed with the connecting part 11 of the electric connecting piece 10, after welding, the electrode group 51 is bent, the connecting part 11 is horizontally arranged, then the first cover plate 21 and the second cover plate 22 are welded and fixed, and the first cover plate 21 of the first cover plate 21 also discloses an electric equipment which comprises the battery. The main design key point of the utility model is the structural improvement of the battery, and other structures of the electric equipment, such as the electric connection part and the mechanical structure part of the electric equipment are not described in detail. The electric device may be various electric devices such as an automobile, a cellular phone, a computer, a ship, a spacecraft, an electric toy, and an electric tool. The embodiment of the utility model does not limit the electric equipment in particular.

It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations and modifications of the present utility model will be apparent to those of ordinary skill in the art in light of the foregoing description. It is not necessary here nor is it exhaustive of all embodiments. While still being apparent from variations or modifications that may be made by those skilled in the art are within the scope of the utility model.

Claims

1. A battery, comprising:

a housing;

2. The battery of claim 1, wherein an insulator is disposed between the housing and the conductive tab.

3. The battery of claim 2, wherein the housing defines a limiting recess, and the insulator and the conductive tab are both positioned within the limiting recess.

4. The battery of claim 1, wherein the electrical connector is stretch-formed by isopipe walls.

5. The battery of claim 1, wherein the housing comprises:

a housing provided with an opening;

the first cover plate is arranged at the opening;

wherein, electrically conductive preforming is located the first apron outside.

6. The battery of claim 5, wherein a stepped surface is provided on the underside of the first cover plate, and a sealing ring is provided between the first cover plate and the boss.

7. The battery of claim 1, wherein a first bracket is disposed in the housing and is fixed to the bushing of the cell, a relief groove is formed in the first bracket, and the pole group extends from the relief groove.

8. The battery of claim 7, wherein the first support comprises a first sub-support and a second sub-support formed by splicing, and the first sub-support and the second sub-support are symmetrically arranged.

9. The battery according to claim 7, wherein a second bracket is arranged in the housing, one end of the second bracket is abutted against the first cover plate on the housing, the other end of the second bracket is abutted against the first bracket, a limiting groove is formed in the second bracket, and the protruding portion penetrates through the limiting groove.

10. A powered device comprising a battery as claimed in any one of claims 1-9.