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Welding quality inspection method and system

A welding quality and inspection method technology, applied in the direction of measuring devices, measuring fluid pressure, instruments, etc., to improve detection efficiency, realize rapid batch detection, and simple operation process

Inactive Publication Date: 2021-01-12
SVOLT ENERGY TECHNOLOGY CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the embodiment of the present invention is to provide a welding quality inspection method and inspection system to solve the problems existing in the existing welding inspection

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  • Welding quality inspection method and system

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Embodiment Construction

[0037] Specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention.

[0038] figure 1 It is a flowchart of a welding quality inspection method provided by an embodiment of the present invention. like figure 1 As shown, the embodiment of the present invention provides a welding quality inspection method, the method comprising:

[0039] S1. Cover the welding point in the airtight cavity.

[0040] S2. Make the interior of the airtight chamber reach a preset vacuum degree by drawing out part of the air in the airtight chamber.

[0041] The so-called "vacuum" refers to a gaseous state with a pressure lower than 101325 Pascals (ie a standard atmospheric pressure of about 101 KPa) in a given space. "Vacuum degree" refers to the degr...

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Abstract

The invention provides a welding quality inspection method and system, and belongs to the technical field of welding inspection. The method comprises the steps that a welding point is wrapped in a closed cavity; part of air in the closed cavity is pumped out to enable the interior of the closed cavity to reach a preset vacuum degree; the change condition of the vacuum degree in the closed cavity is monitored; and the welding quality of the welding point is judged according to the change condition of the vacuum degree. The welding quality of the welding point is judged according to the change condition of the vacuum degree of the closed space where the welding point is located, the detection accuracy is high, the operation process is simple, the detection efficiency is improved, and the method is suitable for detecting the welding quality of the battery cell outer pole and the busbar of the battery module.

Description

technical field [0001] The invention relates to the technical field of welding inspection, in particular to a welding quality inspection method and a welding quality inspection system. Background technique [0002] The power of the electric vehicle is provided by the on-board battery pack. The battery pack is composed of modules connected in series and in parallel to achieve the design voltage. The composition of the module also includes batteries. The outer pole of the battery cell is welded to the bus bar. The surface of the welded part is dirty, the gap is large, the power is insufficient, and the shielding gas is lacking, etc., which will lead to poor welding between the outer pole of the battery cell and the bus bar, resulting in a reduction in the overcurrent capacity and strength of the bus bar. Therefore, it is necessary to check the quality of the bus bar welding points. Strict inspection is carried out. [0003] At present, there are two main methods for busbar w...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N7/00G01L21/00
CPCG01L21/00G01N7/00
Inventor 汤胤博杨向丹谈作伟陈彬彬王君生王忠
Owner SVOLT ENERGY TECHNOLOGY CO LTD