Dynamic and static combined torque sensor of electric power-assisted bicycle

Abstract

The invention relates to a dynamic and static combined torque sensor of an electric power-assisted bicycle. The torque sensor comprises an action unit, a detection unit and a processing and outputtingunit, the detection unit detects the magnetic conversion on the action unit and the rotating speed and the rotating direction of the action unit; the processing and outputting unit collects information detected by the detection unit, converts the information into a corresponding voltage signal, performing amplifying processing and outputting the amplified signal, the output signal of the processing and outputting unit is output through a filter cable, the peripheries of the detection unit and the processing and outputting unit are sleeved with a metal sleeve, a groove is formed in the inner periphery of the metal sleeve and parallel to the axis of the metal sleeve, and a protrusion is arranged at the position, corresponding to the groove, of the filter cable. The invention aims to overcome the defects in the prior art. The dynamic and static combined torque sensor of the electric power-assisted bicycle is good in measurement precision, high in universality and stable in internal signal output.

Description

technical field [0001] The invention relates to the field of electric bicycles, in particular to a dynamic and static torque sensor for electric power-assisted bicycles. Background technique [0002] With the development of social economy, people's means of transportation are becoming more and more diversified. Electric power-assisted bicycles are accepted by consumers because of their small size, convenience, speed, labor-saving and environmental protection. For the development history of China's electric power-assisted bicycles, the industry generally agrees that there are three development stages, namely the initial stage, the initial stage of large-scale production, and the super-speed development stage. In the super development stage, fierce competition among enterprises has greatly stimulated the advancement of technology and the diffusion of new technologies, and the technological level of the industry has also been greatly improved. Traditional electric power-assist...

AI Technical Summary

Problems solved by technology

However, the existing torque sensor has poor measurement accuracy, and the torque sensor needs to customize the installation structure of the center shaft and the chainring attached to the center shaft, which has poor versatility; in addition, the circuit board inside the torque sensor outputs externally through a filter cable, and the filter The connection between the cable and the circuit board is relatively fragile. If the operation is not done properly during the installation process, it will cause poor contact between the filter cable and the circuit board, and the internal signal output will be unstable.

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