Apparatus for detecting resistance welding of battery pack and method thereof

Abstract

The invention relates to an apparatus for detecting resistance welding of a battery pack and a method thereof. The apparatus includes: a base seat, and a battery pack positioning frame and a fixing support, wherein the battery pack positioning frame and the fixing support are arranged on the base seat. The fixing support is provided with two translation mechanisms with each provided with a lifting mechanism. The lifting mechanism is provided with a detection probe which faces vertically downward. The battery pack positioning frame includes an L-shaped frame and a baffle plate which is slidably connected to a backside plate of the L-shaped frame. The baffle plate and a passing driving mechanism are connected. The translation mechanisms, the lifting mechanisms and the passing driving mechanism are separately in electrical connection with a control system. The detection method includes: the translation mechanisms adjusting horizontal positions of the detection probe, the passing driving mechanism adjusting the size of the battery pack positioning frame, and the lifting mechanisms controlling the lifting of the detection probe, the control system automatically determining whether the battery pack qualifies and sending alarm based on the determination. The apparatus and the method of the invention are accurate in positioning, flexible and reliable in detection, time and labor saving, excellent versatility, high security and work efficiency.

Description

Technical field [0001] The invention relates to a detection device for detecting the welding quality of a battery pack, in particular to a battery pack resistance welding welding detection device and a detection method thereof. Background technique [0002] In order to achieve the purpose of energy saving and emission reduction, the current development of electric vehicles is relatively rapid. The power of electric vehicles is provided by lithium-ion battery packs. The lithium-ion battery packs are composed of multiple single batteries in series and parallel. It is necessary to connect the positive and negative of the single battery. The electrodes are connected in series and parallel by resistance welding with connecting copper parts. Therefore, the quality of resistance welding will affect the performance of the entire lithium-ion battery pack. Therefore, it is necessary to carry out internal resistance, Testing of performance such as voltage. The current detection method gene...

AI Technical Summary

Problems solved by technology

[0003] The invention mainly solves the technical problems that the original detection of lithium-ion battery pack resistance welding is affected by human factors, which is prone to misoperation, affects the detection results, and also causes personal injury, and has potential safety hazards; it provides a battery pack resistor Welding welding detection device and its detection method, the lifting of the detection probe is automatically controlled by the machine, not affected by human factors, accurate positioning, avoiding misoperation, ensuring that the lithium-ion battery pack is not damaged, the detection is accurate, and it will not cause personal injury. Cause injuries, improve safety, and increase productivity

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