CN217452734U

CN217452734U - Be used for cylindrical lithium cell spot welding mould

Info

Publication number: CN217452734U
Application number: CN202220694204.XU
Authority: CN
Inventors: 原华钊; 温彩华; 朱燕飞; 黄国文
Original assignee: Guangxi Ares Energy Technology Co ltd
Current assignee: Guangxi Ares Energy Technology Co ltd
Priority date: 2022-03-28
Filing date: 2022-03-28
Publication date: 2022-09-20
Anticipated expiration: 2032-03-28

Abstract

The utility model discloses a spot welding mould for a cylindrical lithium battery, which comprises a bottom plate and a cover plate; a semi-cylindrical first groove is formed in the bottom plate; the cover plate is provided with a semi-cylindrical second groove; the cover plate is arranged on the bottom plate; the first groove and the second groove are combined to form a cylindrical through opening; a retracted first step position is arranged at the edge of the other end of the bottom plate; and a retracted second step position is arranged at the edge of the other end of the cover plate. The utility model has the advantages of use nimble, spot welding is efficient, the spot welding is effectual etc. current product does not possess.

Description

Be used for cylindrical lithium cell spot welding mould

Technical Field

The utility model relates to a battery manufacturing field, more specifically the utility model relates to a be used for cylindrical lithium cell spot welding mould that says so.

Background

With the development of economy and the progress of society, the new energy industry has become a trend, and the safe reliability and the rapid production of the battery pack become important indexes of new energy enterprises. The production speed needs to be increased to meet the market demand while ensuring safety and reliability, which is expected by new energy enterprises. However, in actual production, various factors often exist to affect the production speed and the safety factor of the battery, wherein the spot welding process is an important ring, a lot of enterprises spend a lot of resources in the ring, various different schemes are researched, the module is the most used scheme, and the production speed of the ring is improved slightly. However, the existing molds are too rigid to be used flexibly, resulting in the increase of the number of molds with the increase of different products. In addition, when the two power saving cores are vertically connected in series, if a conventional method is adopted for spot welding, the nickel sheet connected between the two power saving cores can be folded in half to be exposed out of the battery core, PVC is easy to scratch, short circuit is caused, and a serious safety problem exists.

Therefore, the spot welding mould for the cylindrical lithium battery is provided, spot welding can be completed more efficiently, and the spot welding mould can be used more flexibly.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model provides a be used for cylindrical lithium battery spot welding mould makes lithium battery spot welding mould have high efficiency, uses characteristics such as nimble, spot welding is effectual.

The utility model provides a technical scheme that its technical problem adopted is:

a spot welding mould for a cylindrical lithium battery comprises a bottom plate and a cover plate; a semi-cylindrical first groove is formed in the bottom plate; the cover plate is provided with a semi-cylindrical second groove; the cover plate is arranged on the bottom plate; the first groove and the second groove are combined to form a cylindrical through opening; a retracted first step position is arranged at the edge of the other end of the bottom plate; and a retracted second step position is arranged at the edge of the other end of the cover plate.

In the above structure, the first groove and the second groove have the same diameter.

In the above structure, the first grooves are uniformly arranged on the bottom plate.

In the above structure, the second grooves are uniformly arranged on the cover plate.

In the structure, one end of the bottom plate is provided with a lower clamping groove.

In the structure, one end of the cover plate is provided with an upper clamping groove.

In the above structure, the upper card slot and the lower card slot have the same width.

In the above structure, the lower engaging groove and the upper engaging groove are combined to form a rectangular through opening.

In the above structure, further comprising a straight plate; the height and the width of the straight plate are consistent with those of the rectangular through opening; the straight plate may be disposed in the rectangular parallelepiped through opening.

The utility model has the advantages that: the utility model provides a spot welding mould for a cylindrical lithium battery, which comprises a bottom plate and a cover plate; a semi-cylindrical first groove is formed in the bottom plate; the cover plate is provided with a semi-cylindrical second groove; the cover plate is arranged on the bottom plate; the first groove and the second groove are combined to form a cylindrical through opening; a retracted first step position is arranged at the edge of the other end of the bottom plate; a retracted second step position is arranged at the edge of the other end of the cover plate; flexible and practical spot welding and high-efficiency spot welding of the lithium battery spot welding mold are realized; the safety problem that PVC is easy to scratch during spot welding in the existing mould to cause short circuit is solved; the spot welding efficiency, the flexibility and the spot welding quality can be greatly improved in the using process.

Drawings

The present invention will be further explained with reference to the drawings and examples.

FIG. 1 is a schematic assembly view of the present invention (example 1);

FIG. 2 is a schematic assembly view of the present invention (example 2);

fig. 3 is the assembly schematic diagram of two moulds splicing in the utility model.

Detailed Description

The conception, the specific structure, and the technical effects produced by the present invention will be clearly and completely described below in conjunction with the embodiments and the accompanying drawings to fully understand the objects, the features, and the effects of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and other embodiments obtained by those skilled in the art without inventive labor based on the embodiments of the present invention all belong to the protection scope of the present invention. In addition, all the connection/connection relations referred to in the patent do not mean that the components are directly connected, but mean that a better connection structure can be formed by adding or reducing connection auxiliary components according to specific implementation conditions. The utility model discloses each technical feature in the creation can the interactive combination under the prerequisite that does not contradict conflict each other.

Example 1

As shown in fig. 1, a spot welding mold for a cylindrical lithium battery includes a base plate 02 and a cover plate 01; a semi-cylindrical first groove 04 is formed in the bottom plate 02; a semi-cylindrical second groove 03 is formed in the cover plate 01; the cover plate 01 is arranged on the bottom plate 02; the first groove 04 and the second groove 03 are combined to form a cylinder through opening 05.

Example 2

As shown in fig. 2, embodiment 2 is different from embodiment 1 in that a retracted first step 07 is provided at the other end edge of the base plate 02; and a retracted second step 06 is arranged at the edge of the other end of the cover plate 01.

An individual die is used for spot welding one row of cells, and the cells are placed in the cylinder through opening 05.

As shown in fig. 3, the battery cells can be spliced for use at the same time, so that the requirement of spot welding of various numbers of battery cells is met; the two dies can be combined into a set of 90-degree spot welding dies, the dies are suitable for vertical series spot welding of the battery cells, and the edge of a bottom plate 02 of one set of dies is arranged on a first step position 07/a second step position 06 of the other set of dies, so that two battery cells form a 90-degree angle;

the first step position 07/second step position 06 pair is set to a retracted state, so that the welding spot distance of the two battery cores is closer, the used nickel sheet is shorter, and when the two battery cores are erected, the nickel sheet cannot exceed the diameter range of the battery cores.

The diameters of the first groove 04 and the second groove 03 are equal; the first grooves 04 are uniformly arranged on the bottom plate 02; the second grooves 03 are uniformly arranged on the cover plate 01; when the cover plate 01 covers the bottom plate 02, the first groove 04 and the second groove 03 can form a cylindrical through hole 05;

a lower clamping groove 09 is formed in one end of the bottom plate 02; an upper clamping groove 08 is formed in one end of the cover plate 01; the widths of the upper clamping groove 08 and the lower clamping groove 09 are equal; so that the upper clamping groove 08 and the lower clamping groove 09 form a rectangular through opening 11.

The lower clamping groove 09 and the upper clamping groove 08 are combined to form a rectangular through opening 11.

The spot welding mould for the cylindrical lithium battery further comprises a straight plate 10; the height and the width of the straight plate 10 are consistent with those of the rectangular through opening 11; the straight plate 10 can be arranged in a rectangular through hole 11; the mold is adapted to 18650 cells when the bar 10 is inserted, and to 18730 cells when the bar 10 is withdrawn.

This set of mould is applicable to the spot welding work of 18650, 18730 two types of electric cores simultaneously, through the connection of mould, has solved the risk that the nickel piece of electric core when erecting festival electric core surpassed electric core diameter. Meanwhile, the die can also be used for the spot welding work of one row of common electric cores in series and parallel, and the whole production speed is improved.

While the preferred embodiments of the present invention have been described, the present invention is not limited to the above embodiments, and those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present invention, and such equivalent modifications or substitutions are intended to be included within the scope of the present invention as defined by the appended claims.

Claims

1. The utility model provides a be used for cylindrical lithium cell spot welding mould which characterized in that: comprises a bottom plate and a cover plate; a semi-cylindrical first groove is formed in the bottom plate; the cover plate is provided with a semi-cylindrical second groove; the cover plate is arranged on the bottom plate; the first groove and the second groove are combined to form a cylindrical through opening; a retracted first step position is arranged at the edge of the other end of the bottom plate; and a retracted second step position is arranged at the edge of the other end of the cover plate.

2. The spot welding mold for the cylindrical lithium battery as claimed in claim 1, wherein: the diameters of the first groove and the second groove are equal.

3. The spot welding mold for the cylindrical lithium battery as claimed in claim 1, wherein: the first grooves are uniformly arranged on the bottom plate.

4. The spot welding mold for the cylindrical lithium battery as claimed in claim 1, wherein: the second grooves are uniformly arranged on the cover plate.

5. The spot welding mold for the cylindrical lithium battery as claimed in claim 1, wherein: a lower clamping groove is formed in one end of the bottom plate; one end of the cover plate is provided with an upper clamping groove.

6. The spot welding mold for the cylindrical lithium battery as claimed in claim 5, wherein: the width of the upper clamping groove is equal to that of the lower clamping groove.

7. The spot welding mold for the cylindrical lithium battery as claimed in claim 5, wherein: the lower clamping groove and the upper clamping groove are combined to form a rectangular through opening.

8. The spot welding mold for the cylindrical lithium battery as claimed in claim 1, wherein: also comprises a straight plate; the height and the width of the straight plate are consistent with those of the rectangular through opening; the straight plate may be disposed in the rectangular parallelepiped through opening.