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Welding structure and welding method

A welding method and welding structure technology, applied in the direction of welding/welding/cutting items, welding equipment, laser welding equipment, etc., can solve the problem that the welding area cannot be increased, and solve the problem that the welding area cannot be increased, increase the welding area, and improve the bearing capacity The effect of current capacity

Pending Publication Date: 2021-01-22
成都格力钛新能源有限公司 +1
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Problems solved by technology

[0007] The main purpose of the present invention is to provide a welding structure and welding method to solve the problem that the welding area of ​​laser seam welding in the prior art cannot be increased

Method used

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  • Welding structure and welding method
  • Welding structure and welding method
  • Welding structure and welding method

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Embodiment Construction

[0029] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0030] Such as Figure 1 to Figure 7 As shown, the present invention provides a welding structure, comprising: a first piece to be welded 1; a second piece to be welded 2, the first piece to be welded 1 and the second piece to be welded 2 are relatively arranged to form a first weld 12. The first welding part 3, the first welding part 3 is arranged between the first part to be welded 1 and the second part to be welded 2, and is located above the first weld 12 to form the second weld 13 and the second weld Three welds23.

[0031] In the welding structure of the present invention, the arrangement of layered and sequential welding along its thickness direction is adopted between the first piece ...

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Abstract

The invention provides a welding structure and a welding method. The welding structure comprises a first to-be-welded part, a second to-be-welded part and a first welding part, wherein the first to-be-welded part and the second to-be-welded part are oppositely arranged to form a first welding seam; and the first welding part is arranged between the first to-be-welded part and the second to-be-welded part and located above the first welding seam so as to form a second welding seam and a third welding seam. According to the welding structure provided by the invention, the problem that in the prior art, the welding area of laser seam welding cannot be increased is solved.

Description

technical field [0001] The invention relates to the field of welding, in particular to a welding structure and a welding method. Background technique [0002] Laser welding is very important in the lithium battery industry. Laser welding is often used in the production process of batteries, battery modules and battery packs to achieve sealing or overcurrent. [0003] Among them, the welding methods used for overcurrent structures are divided into penetration welding and seam welding. Penetration welding requires a laser welder with higher power. The penetration depth of penetration welding is lower than that of seam welding, and its reliability is relatively low. Poor; while seam welding only needs a laser welding machine with a lower power, which has a higher penetration depth and better reliability. [0004] The over-current area of ​​seam welding determines the size of the over-current, the over-current area is determined by the length of the weld and the depth of the mo...

Claims

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Application Information

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IPC IPC(8): B23K26/24B23K101/36
CPCB23K26/24B23K2101/36
Inventor 白宗亮黄玉元刘琦郭磊斌
Owner 成都格力钛新能源有限公司
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