Intelligent electric screwdriver device and control method thereof

Abstract

The invention discloses an intelligent electric screwdriver device and a control method thereof. The intelligent electric screwdriver device comprises an electric screwdriver head device, a resistance detection device and a central control unit, and the electric screwdriver head device is used for adjusting screw locking torsion on a pole piece of a to-be-detected object and collecting torsion information. The resistance detection device is provided with a first electrode electrically connected with the electric screwdriver head device and a second electrode electrically connected with the first electrode and can be used for detecting the resistance value of a resistor of a circuit between two screws at a first end and a second end of the to-be-detected object when the second electrode and the electric screwdriver head device are in corresponding contact with the screws at the first end and the second end of the to-be-detected object correspondingly. The central control unit is electrically connected with the electric screwdriver head device and the resistance detection module, and is used for collecting the torsion information and the resistance value of the resistor of the to-be-detected object and controlling the electric screwdriver head device to work on the basis of the torsion information and the resistance value of the resistor. The service life of a battery system is greatly prolonged, the capacity of the battery system is greatly improved, the verification link is simplified, the screw locking efficiency and the connection reliability are improved, and the workload of production workers is reduced.

Description

technical field [0001] The invention relates to the technical field of batteries, in particular to an intelligent electric batch device and a control method thereof. Background technique [0002] With the development of the lithium battery industry, the application of lithium batteries is becoming more and more extensive. In the application field of lithium batteries, the life and capacity attenuation of lithium batteries have always been the key issues of concern, and an important parameter affecting the life and capacity is the consistency of the internal resistance of the composed battery or module. [0003] At present, the batteries are connected in series or in parallel by screw connection, welding, etc. When the screws are connected in groups, the pole pieces or cable joints, and between the batteries are affected by the screw torque, the flatness of the pole pieces or cable joints, etc., the difference in contact resistance is very large. Large, resulting in a large ...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the embodiments of the present invention is to provide an intelligent electric batch device and its control method, aiming to solve the problem that after the pole piece or cable head connector connecting screw of the battery or module is locked, it not only ensures that the torque meets the qualified requirements, but also The internal resistance of all batteries or modules is kept the same to improve the life and capacity of the battery system; it also eliminates the need to use an internal resistance tester to detect whether the contact resistance has reached Consistent, cumbersome and inefficient operations

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