CN219608979U

CN219608979U - Short circuit test fixture for cylindrical battery

Info

Publication number: CN219608979U
Application number: CN202223594607.6U
Authority: CN
Inventors: 郑治武; 李和林
Original assignee: Aerospace Lithium Technology Jiangsu Co ltd
Current assignee: Aerospace Lithium Technology Jiangsu Co ltd
Priority date: 2022-12-30
Filing date: 2022-12-30
Publication date: 2023-08-29
Anticipated expiration: 2032-12-30

Abstract

The utility model discloses a cylindrical battery short circuit test fixture, which comprises a base, wherein the bottom of the base is fixedly connected with a fixed base, two sides of the top of the base are fixedly connected with a vertical plate, the middle part of the vertical plate is fixedly provided with an electric positioning cylinder, the output end of one electric positioning cylinder is connected with a first clamping sleeve, the output end of the other electric positioning cylinder is connected with a second clamping sleeve, the top of the first clamping sleeve and the top of the second clamping sleeve are respectively and fixedly connected with a locking bolt for further fixing and limiting a battery, the top of the base is fixedly connected with an edge fixing mechanism for reinforcing two sides of the battery, and the edge fixing mechanism comprises an arc clamping strip and tightening iron strips fixedly connected to two sides of the arc clamping strip.

Description

Short circuit test fixture for cylindrical battery

[ field of technology ]

The utility model relates to the technical field of batteries, in particular to a short circuit testing tool for a cylindrical battery.

[ background Art ]

Lithium batteries are a type of battery using a nonaqueous electrolyte solution with lithium metal or a lithium alloy as a positive/negative electrode material. The chemical characteristics of lithium metal are very active, so that the processing, storage and use of lithium metal have very high requirements on environment. With the development of science and technology, lithium batteries have become the mainstream. The cylindrical lithium ion battery has the advantages of large capacity, long service life, high safety performance, high voltage, no memory effect, small internal resistance, wide application range and the like. Because of the large capacity per unit density, lithium ion batteries are widely used in the electronic fields such as notebook batteries and the like at present, and the lithium ion batteries occupy an important position in the battery industry at present. In the battery production process, after the battery is subjected to a slot rolling process, a short circuit test is required to be carried out, and the short-circuited battery is removed, so that the production quality of the battery is ensured.

In the current short circuit testing process of the cylindrical battery, the tool is used for clamping and limiting the battery once, after clamping the outer side of the battery, the battery can be loosened and shifted in the testing process, so that the testing work is affected, and the working efficiency is reduced.

In view of the foregoing, it is necessary to provide a short circuit testing tool for cylindrical batteries to overcome the above-mentioned drawbacks.

[ utility model ]

The utility model aims to provide a cylindrical battery short circuit testing tool, and aims to solve the problems that in the current cylindrical battery short circuit testing process, the tool often clamps and limits a battery once, and after the outer side of the battery is clamped, the battery can be loosened and shifted in the testing process, so that the testing work is affected, and the working efficiency is reduced.

In order to achieve the above purpose, the utility model provides a cylindrical battery short circuit test fixture, which comprises a base, wherein the bottom of the base is fixedly connected with a fixed base, two sides of the top of the base are fixedly connected with vertical plates, the middle part of each vertical plate is fixedly provided with an electric positioning cylinder, one output end of each electric positioning cylinder is connected with a first jacket, the other output end of each electric positioning cylinder is connected with a second jacket, the top of each first jacket and the top of each second jacket are respectively connected with a locking bolt for further fixing and limiting a battery in a threaded manner, the top of the base is fixedly connected with side fixing mechanisms for reinforcing two sides of the battery, and each side fixing mechanism comprises an arc-shaped clamping strip and tightening iron strips fixedly connected to two sides of the arc-shaped clamping strip.

In a preferred embodiment, a switch panel is fixedly installed on one side of the front face of the base, and the two electric positioning cylinders are electrically connected with an external power supply through the switch panel, wherein the switch panel is used for controlling the electric positioning cylinders.

In a preferred embodiment, the first jacket and the second jacket are symmetrically arranged, and the inner side of the second jacket and the inner side of the first jacket are both connected with a clamping pad for protecting the battery, so that the damage to the battery caused by the clamping pad is reduced.

In a preferred embodiment, the bottom of the locking bolt is connected with a rubber pad for reducing scratches to the battery, and the two sides of the top of the locking bolt are fixedly connected with torsion bars for facilitating rotation of the locking bolt, and the torsion bars facilitate rotation of the locking bolt.

In a preferred embodiment, two sides of the first clamping sleeve are fixedly connected with clamping blocks which are convenient to connect with the second clamping sleeve, clamping grooves matched with the clamping blocks are formed in two sides of the second clamping sleeve, and the clamping grooves are connected with the clamping blocks in a clamping mode.

In a preferred embodiment, the arc-shaped clamping strip is matched with the first clamping sleeve, and the tightening iron strip at the bottom of the arc-shaped clamping strip is fixedly connected with the surface of the base.

In a preferred embodiment, two vertical plates are symmetrically arranged, two electric positioning cylinders are symmetrically arranged, and the middle part of each electric positioning cylinder is fixedly arranged in the middle of each vertical plate.

In a preferred embodiment, the length of the fixing base is greater than that of the base, and fixing screw holes for fixing the fixing base are formed in two sides of the fixing base, and the fixing screw holes are convenient for installing screws to fix the whole fixture.

According to the cylindrical battery short circuit test tool provided by the utility model, the middle part of the cylindrical battery is arranged between the first clamping sleeve and the second clamping sleeve, the electric positioning cylinder is started to enable the first clamping sleeve and the second clamping sleeve to clamp the cylindrical battery finally for limiting, then the locking bolt is screwed to move inwards to fixedly lock the cylindrical battery, then the arc clamping strips are clamped at two sides of the battery, the arc clamping strips are screwed to tightly clamp the end sides of the battery when the iron strips are wound together, the whole tool is used for carrying out multiple limiting fixation on the battery, the fixing effect is good, the phenomenon of loosening and shifting in the battery test process is prevented, and the working efficiency is improved.

[ description of the drawings ]

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

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

FIG. 2 is a block diagram of a first jacket of the present utility model;

FIG. 3 is a diagram showing the structure of the connection between the first jacket and the second jacket according to the present utility model;

fig. 4 is a structural view of the side fixing mechanism of the present utility model.

In the figure: 1. a base; 2. a fixed base; 3. a switch panel; 4. a vertical plate; 5. an electric positioning cylinder; 6. a first jacket; 7. a second jacket; 8. a side fixing mechanism; 9. a locking bolt; 10. a torsion bar; 11. a clamping pad; 12. a clamping groove; 13. a clamping block; 14. fixing the screw holes; 15. arc-shaped clamping strips; 16. and (5) screwing the iron bars.

[ detailed description ] of the utility model

In order to make the objects, technical solutions and advantageous technical effects of the present utility model more apparent, the present utility model will be further described in detail with reference to the accompanying drawings and detailed description. It should be understood that the detailed description is intended to illustrate the utility model, and not to limit the utility model.

It is also to be understood that the terminology used in the description of the utility model herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. As used in this specification 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.

It should be further understood that the term "and/or" as used in the present specification and the appended claims refers to any and all possible combinations of one or more of the associated listed items, and includes such combinations.

Referring to fig. 1-4, in the embodiment of the utility model, a short circuit testing fixture for a cylindrical battery is provided, which comprises a base 1, wherein a fixing base 2 is fixedly connected to the bottom of the base 1, two sides of the top of the base 1 are fixedly connected with a vertical plate 4, an electric positioning cylinder 5 is fixedly installed in the middle of the vertical plate 4, the output end of one electric positioning cylinder 5 is connected with a first clamping sleeve 6, the output end of the other electric positioning cylinder 5 is connected with a second clamping sleeve 7, the top of the first clamping sleeve 6 and the top of the second clamping sleeve 7 are respectively connected with a locking bolt 9 for further fixing and limiting the battery, the top of the base 1 is fixedly connected with side fixing mechanisms 8 for reinforcing two sides of the battery, each side fixing mechanism 8 comprises an arc clamping strip 15 and tightening iron strips 16 fixedly connected to two sides of the arc clamping strip 15, in the embodiment, the middle of the cylindrical battery is arranged between the first clamping sleeve 6 and the second clamping sleeve 7, the end of the battery is positioned between the side fixing mechanisms 8, then the electric positioning cylinder 5 is started through a switch panel 3, the first clamping sleeve 6 and the second clamping sleeve 7 finally clamp the cylindrical battery, and the side fixing bolts 9 are screwed inwards to fix the cylindrical battery.

In this embodiment, the electric positioning cylinders 5 are core components for clamping and limiting, in the use process, one electric positioning cylinder 5 pushes the first jacket 6 to the middle, meanwhile, the other electric positioning cylinder 5 pushes the second jacket 7 to the middle, and finally, the first jacket 6 and the second jacket 7 clamp the middle of the battery.

Referring to fig. 1-4, switch panel 3 is fixedly installed on one side of the front face of base 1, two electric positioning cylinders 5 are all electrically connected with an external power supply through switch panel 3, first clamp sleeve 6 and second clamp sleeve 7 are symmetrically arranged, clamp pads 11 for protecting batteries are connected to the inner side of second clamp sleeve 7 and the inner side of first clamp sleeve 6, rubber pads for reducing scratches on the batteries are connected to the bottoms of locking bolts 9, torsion bars 10 for facilitating rotation of locking bolts 9 are fixedly connected to the two sides of the tops of locking bolts 9, clamping blocks 13 which are convenient to connect with second clamp sleeve 7 are fixedly connected to the two sides of first clamp sleeve 6, clamping grooves 12 are connected with clamping blocks 13 in a clamping mode, arc-shaped clamping strips 15 are matched with first clamp sleeve 6, tightening iron strips 16 at the bottoms of arc-shaped clamping strips 15 are fixedly connected with the surface of base 1, two vertical plates 4 are symmetrically arranged, the middle parts of electric positioning cylinders 5 are fixedly installed on the middle parts of vertical plates 4, the length of fixing bases 2 is larger than the lengths of base 1, and the lengths of the two sides of the batteries are convenient to wind up in the two sides of the base 2, and the two sides of the battery clamping strips are further clamped by the arc-shaped clamping strips 2 are further clamped by clamping strips 14, and the two sides of the battery clamping strips are further clamped by the two sides of the base 2 are clamped by clamping strips 2, and the two sides of the battery clamping strips are further clamped by the fixing base 2 are clamped by the clamping strips and the clamping strips 2.

When the cylindrical battery short circuit testing tool is particularly used, the middle part of a cylindrical battery is arranged between the first clamping sleeve 6 and the second clamping sleeve 7, the end sides of the battery are positioned between the side fixing mechanisms 8, then the electric positioning cylinders 5 are started through the switch panel 3, one electric positioning cylinder 5 pushes the first clamping sleeve 6 to the middle part, meanwhile, the other electric positioning cylinder 5 pushes the second clamping sleeve 7 to the middle part, the first clamping sleeve 6 and the second clamping sleeve 7 clamp the cylindrical battery to limit, the clamping blocks 13 on the first clamping sleeve 6 are clamped into the clamping grooves 12 of the second clamping sleeve 7, the locking bolts 9 are screwed through the torsion bars 10, the cylindrical battery is fixedly locked by inwards moving the locking bolts 9, the arc clamping strips 15 are clamped at two sides of the battery, the side fixing mechanisms 8 are arranged in pairs, the number of the side fixing mechanisms 8 is set according to requirements, the arc clamping strips 15 when the iron strips 16 are screwed together, then the short circuit testing work is carried out, the whole tool fixing effect is good, the phenomenon of loosening and shifting in the battery testing process is prevented, and the working efficiency is improved.

The present utility model is not limited to the details and embodiments described herein, and thus additional advantages and modifications may readily be made by those skilled in the art, without departing from the spirit and scope of the general concepts defined in the claims and the equivalents thereof, and the utility model is not limited to the specific details, representative apparatus and illustrative examples shown and described herein.

Claims

1. The utility model provides a cylinder battery short circuit test fixture, includes base (1), its characterized in that: the utility model discloses a battery tightening device, including base (1), base (1), fixing base (2), riser (4) are all fixedly connected with in the bottom of base (1), the middle part fixed mounting of riser (4) has electric positioning cylinder (5), one of them electric positioning cylinder (5)'s output is connected with first clamp cover (6), and another electric positioning cylinder (5)'s output is connected with second clamp cover (7), just the equal threaded connection in top of first clamp cover (6) and second clamp cover (7) has locking bolt (9) to battery further fixed limit, the top fixedly connected with of base (1) carries out the limit side fixed establishment (8) that consolidates the battery both sides, limit side fixed establishment (8) include arc holding strip (15) and screw up iron strip (16) of fixed connection in arc holding strip (15) both sides.

2. The cylindrical battery short circuit test fixture according to claim 1, wherein a switch panel (3) is fixedly arranged on one side of the front face of the base (1), and two electric positioning cylinders (5) are electrically connected with an external power supply through the switch panel (3).

3. The cylindrical battery short-circuit test fixture according to claim 1, wherein the first jacket (6) and the second jacket (7) are symmetrically arranged, and both the inner side of the second jacket (7) and the inner side of the first jacket (6) are connected with a clamping pad (11) for protecting the battery.

4. The cylindrical battery short-circuit test fixture according to claim 1, wherein the bottom of the locking bolt (9) is connected with a rubber pad for reducing scratch to a battery, and two sides of the top of the locking bolt (9) are fixedly connected with torsion bars (10) for facilitating rotation of the locking bolt (9).

5. The cylindrical battery short-circuit test fixture according to claim 1, wherein clamping blocks (13) which are convenient to connect with the second clamping sleeve (7) are fixedly connected to two sides of the first clamping sleeve (6), clamping grooves (12) matched with the clamping blocks (13) are formed in two sides of the second clamping sleeve (7), and the clamping grooves (12) are connected with the clamping blocks (13) in a clamping mode.

6. The cylindrical battery short circuit test fixture according to claim 1, wherein the arc-shaped clamping strip (15) is matched with the first jacket (6), and a tightening iron strip (16) at the bottom of the arc-shaped clamping strip (15) is fixedly connected with the surface of the base (1).

7. The cylindrical battery short circuit test fixture according to claim 1, wherein two vertical plates (4) are symmetrically arranged, two electric positioning cylinders (5) are symmetrically arranged, and the middle part of each electric positioning cylinder (5) is fixedly arranged in the middle of each vertical plate (4).

8. The cylindrical battery short-circuit test fixture according to claim 1, wherein the length of the fixing base (2) is greater than that of the base (1), and fixing screw holes (14) which are convenient for fixing the fixing base (2) are formed in two sides of the fixing base (2).