A fully automatic welding equipment for lithium battery module and its control method

Abstract

The invention discloses a fully automatic welding equipment for a lithium battery module and a control method thereof, comprising: a fusible metal transmission channel, a distance sensor provided at the exit of the transmission channel, a clamp for clamping the fusible metal and The welding head is composed of a pair of welding pens. The battery cell moves up and down through the lifting mechanism to contact the welding head, and an elastic connector is provided above the welding head and the battery cell. Both the welding head and the lifting mechanism are connected to the controller. The distance detection module The input end of the power adjustment module is connected to the distance sensor; the input end of the power adjustment module is connected to the output end of the distance detection module and the power supply; the output end of the power adjustment module is connected to the input end of the mobile control module and the lifting control module; The distance information output by the module controls the movement control module to drive the transmission channel and the fixture to move, and controls the lift control module to drive the lift mechanism to move. Greatly improved welding efficiency and welding accuracy.

Description

technical field [0001] The invention relates to the technical field of safety protection for batteries of large-capacity energy storage power stations, in particular to a fully automatic welding device for a lithium battery module and a control method thereof. Background technique [0002] At present, the application of large-capacity battery energy storage power stations in power systems has a history of more than 20 years. Since energy storage power stations are large in size and are generally located inside or near civil buildings, the safety of their use is of paramount importance. In practical applications, in order to protect the cells of the energy storage power station, the current method is to weld a protective plate on the cells of the battery to protect the cells from overcurrent to prevent heat accumulation caused by the discharge of the cells in an over-temperature state. , resulting in serious accidents such as explosions and fires. [0003] However, the curr...

AI Technical Summary

Problems solved by technology

The main defects of its existence are: First, this manual or semi-automatic welding method has low welding efficiency and high welding cost

Second, at present, metals such as iron, chromium, and aluminum are welded to the battery cell, which has limited overcurrent protection capability and unreliable battery temperature protection.

The third is that after the welding is completed, there is a lack of detection of the welding effect of the electric core, and the reliability of the welding cannot be guaranteed.

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