CN211804507U

CN211804507U - Battery module welding tool

Info

Publication number: CN211804507U
Application number: CN202020219544.8U
Authority: CN
Inventors: 陆巍巍; 靳永伟; 温业勇; 张伟; 周德和; 王华文
Original assignee: Sunwoda Electric Vehicle Battery Co Ltd
Current assignee: Xinwangda Power Technology Co ltd
Priority date: 2020-02-27
Filing date: 2020-02-27
Publication date: 2020-10-30
Anticipated expiration: 2030-02-27

Abstract

The utility model provides a battery module welding frock, a serial communication port, include: the cover plate is covered on the battery module to be welded, the fixing nozzle is abutted against the busbar of the battery module to be welded, the fixing nozzle is assembled on the cover plate, a first gas pipeline is arranged on the cover plate, a second gas pipeline and a filter screen are arranged on the fixing nozzle, a first port of the second gas pipeline is in sealed connection with the first gas pipeline, a second port of the second gas pipeline and the filter screen are arranged at a nozzle of the fixing nozzle. The utility model provides a battery module welding frock can carry out the contact efficiency that welded in-process improved protective gas and welding point to the battery module, improves the welding yield between electric core and the busbar, reduces the welding slag accident simultaneously and blows off the influence to whole battery module.

Description

Battery module welding tool

Technical Field

The utility model relates to a power battery makes the field, specifically relates to a battery module welding frock.

Background

In the manufacturing process of the power battery, a plurality of single battery cores are connected with electric links through bus bar welding, and protective gas needs to be blown to welding points in welding engineering so as to improve the welding quality of the welding points. The existing protective gas blowing method generally uses one gas blowing pipe to directly blow the protective gas to a welding point, the contact efficiency of the protective gas and the welding point is not high, and the capability of protecting the welding point is poor.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a battery module welding frock, this equipment can effectively improve the contact surface of busbar welding point in protective gas and the battery module and connect, improves the welding yield between electric core and the busbar.

In order to realize above-mentioned purpose, this disclosure provides a battery module welding frock, its characterized in that includes:

the cover plate is covered on the battery module to be welded; and the number of the first and second groups,

the fixing nozzle is abutted against a bus bar of a battery module to be welded, the fixing nozzle is assembled on the cover plate, a first gas pipeline is arranged on the cover plate, a second gas pipeline and a filter screen are arranged on the fixing nozzle, a first port of the second gas pipeline is in sealing connection with the first gas pipeline, a second port of the second gas pipeline and the filter screen are arranged at a nozzle of the fixing nozzle.

Optionally, the cover plate is fitted with at least one fixed mouth.

Optionally, the cover plate is provided with at least one first gas pipeline, and the fixed nozzle is provided with at least one second gas pipeline.

Optionally, the first gas conduit corresponds to the second gas conduit.

Optionally, one end of the first gas pipeline is disposed on the side of the cover plate, and the other end of the first gas pipeline is hermetically connected with the corresponding first port of the second gas pipeline.

Optionally, the distance between the second port of the second gas pipeline and the fixed nozzle is 1mm to 4 mm.

Optionally, the second gas pipeline corresponds to the filter screen and is respectively disposed at two sides of the fixed nozzle.

Optionally, the mesh diameter of the filter screen is less than 0.2 mm.

Optionally, the filter screen is an aluminum wire filter screen.

Optionally, the area of the fixed nozzle is larger than the area of the welding point of the battery module to be welded.

Through the battery module welding frock that above-mentioned technical scheme provided, can carry out the contact efficiency that welded in-process improved protective gas and welding point to the battery module, improve the welding yield between electric core and the busbar, the filter screen can prevent simultaneously that the welding slag from being blown off by protective gas, has prevented that the welding slag accident from blowing off the influence to whole battery module.

Additional features and advantages of the disclosure will be set forth in the detailed description which follows.

Drawings

The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the description serve to explain the disclosure without limiting the disclosure. In the drawings:

fig. 1 is a schematic structural view of a battery module welding tool.

Fig. 2 is a plan view of the battery module welding tool.

Fig. 3 is a schematic structural view of a fixing nozzle of the battery module welding tool.

Description of the reference numerals

1 cover plate 11 first gas pipeline

12 fixed mouth mounting hole 2 fixed mouth

21 second gas duct 22 filter screen

23 fixed nozzle

Detailed Description

The following detailed description of specific embodiments of the present disclosure is provided in connection with the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present disclosure, are given by way of illustration and explanation only, not limitation.

In the present disclosure, unless otherwise specified, use of directional words such as "upper, lower, left, right" generally refers to "above", "below", "left", "right" based on the particular component referred to in the drawings; "inner and outer" refer to the "inner" and "outer" sides based on the particular components referred to in the drawings; "distal and proximal" refer to the distance from a particular element in the drawings.

As shown in fig. 1-3, the present disclosure provides a battery module welding tool, which is composed of a cover plate 1 and a fixing nozzle 2. Whole battery module welding frock includes a apron 1 and at least one fixed

mouth

2, and 1 covers of apron is established in the battery module top of treating the welding, fixed whole welding frock. A plurality of fixed nozzle mounting holes 12 are formed in the cover plate 1, and the fixed nozzles 2 can be mounted in the fixed nozzle mounting holes 12 according to actual needs. Fixed mouth 23 supports and leans on treating the busbar of welding battery module, and fixed mouth 23 area needs to be greater than the area of treating the welding point of welding battery module. Fixed mouth 2 and apron 1 make up and accomplish battery module's weldment work jointly, and as this technical scheme's preferred scheme, fixed mouth 2 chooses for use the copper mouth.

At least one first gas pipeline 11 is arranged on the cover plate 1, at least one second gas pipeline 21 is arranged on the fixed nozzle 2, and when the fixed nozzle 2 is assembled on the nozzle opening 23 of the fixed nozzle, the first gas pipeline 11 is connected with the second gas pipeline 21 in a sealing mode. Meanwhile, the fixed nozzle 2 is also provided with a filter screen 22, so that the protective gas in the fixed nozzle 2 can be discharged out of the fixed nozzle 2, and the protective gas is prevented from bringing out welding slag of a welding point. Each fixed nozzle 2 is provided with a second gas pipeline 21, the number of the second gas pipelines can be set according to specific design requirements, the first gas pipelines 11 need to be matched with the number of the second gas pipelines 21, and the matching mode can be as follows: one first gas pipeline 11 corresponds to one second gas pipeline 21, one first gas pipeline 11 corresponds to a plurality of second gas pipelines 21, and a plurality of first gas pipelines 11 correspond to a plurality of second gas pipelines 21. It should be understood that, in the above matching manner of the plurality of first gas pipelines 11 corresponding to the plurality of second gas pipelines 21, the plurality of first gas pipelines 11 are all the first gas pipelines 11 disposed on one fixing nozzle mounting hole 12, and the plurality of second gas pipelines 21 are all the second gas pipelines 21 disposed on one fixing nozzle 2.

In the present embodiment, one first pipeline 11 is disposed corresponding to one second gas pipeline 21: each fixed nozzle mounting hole 12 of the cover plate 1 is provided with a first gas pipeline 11, and each fixed nozzle 2 is provided with only one second gas pipeline 21. One end of the first gas pipe 11 is disposed at a side of the cover plate 1 for connecting an external shielding gas supply device. The other end of the first gas pipe 11 is connected to a first port of a second gas pipe 21 connected thereto in a sealing manner, and protective gas supplied from the outside is introduced into the second gas pipe 21.

Still be provided with filter screen 22 on the fixed mouth 2, the second port of second gas pipeline 21 all sets up in the position department that is close to fixed mouth 23 with filter screen 22 to the realization provides the purpose of so shielding gas and welding point contact efficiency. The distance between the second port of the second gas pipeline 21 and the nozzle opening 23 of the fixed nozzle cannot be too large, otherwise, the protection effect of the protective gas on the welding point can be reduced; and the distance cannot be too small, so as to prevent the second gas pipeline 21 from being deformed and blocked due to too high temperature. In a preferred embodiment of the present invention, the distance between the second end of the second gas duct 22 and the fixed nozzle 23 is in the range of 1mm to 4 mm.

As a preferred embodiment of the present invention, the filter screen 22 corresponds to the second port of the second gas pipeline 22, and the filter screen 22 and the second port are respectively disposed on two sides of the fixed nozzle 23 to improve the flow capacity of the shielding gas, thereby improving the shielding effect. The filter screen 22 is preferably an aluminum wire filter screen, the diameter of the mesh of the filter screen is less than 0.2mm,

the preferred embodiments of the present disclosure are described in detail with reference to the accompanying drawings, however, the present disclosure is not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solution of the present disclosure within the technical idea of the present disclosure, and these simple modifications all belong to the protection scope of the present disclosure. For example.

It should be noted that, in the foregoing embodiments, various features described in the above embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, various combinations that are possible in the present disclosure are not described again.

In addition, any combination of various embodiments of the present disclosure may be made, and the same should be considered as the disclosure of the present disclosure, as long as it does not depart from the spirit of the present disclosure.

Claims

1. The utility model provides a battery module welding frock which characterized in that includes:

2. The battery module welding tool of claim 1, wherein the cover plate is provided with at least one fixing nozzle.

3. The battery module welding tool according to claim 1, wherein the cover plate is provided with at least one first gas pipeline, and the fixing nozzle is provided with at least one second gas pipeline.

4. The battery module welding tool of claim 3, wherein the first gas pipeline corresponds to the second gas pipeline.

5. The battery module welding tool according to claim 1, wherein one end of the first gas pipeline is arranged on the side face of the cover plate, and the other end of the first gas pipeline is in sealing connection with the corresponding first port of the second gas pipeline.

6. The battery module welding tool according to claim 1, wherein the distance between the second port of the second gas pipeline and the nozzle of the fixed nozzle is 1-4 mm.

7. The battery module welding tool according to claim 1, wherein the second gas pipelines correspond to the filter screen and are respectively arranged on two sides of the fixed nozzle.

8. The battery module welding tool of claim 1, wherein the mesh diameter of the filter screen is less than 0.2 mm.

9. The battery module welding tool of claim 1, wherein the filter screen is an aluminum wire filter screen.

10. The battery module welding tool of claim 1, wherein the area of the fixed nozzle is larger than the area of the welding point of the battery module to be welded.