Electric driving device of gear shifting mechanism of variable-speed hub motor

By combining the transmission disc and elastic mechanism with the Hall magnet pair design, the shifting mechanism of the variable speed hub motor is ensured to continue shifting after the resistance of the dial disappears, which solves the problem of inaccurate shifting feedback signal in the existing technology and improves the riding safety and control precision of electric bicycles.

CN121590692APending Publication Date: 2026-03-03SUZHOU SHENGYI MOTOR
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Patent Information

Application Number
CN202610026117.X
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-01-09
Publication Date
2026-03-03

AI Technical Summary

Technical Problem

The electric drive unit of the existing variable speed hub motor shifting mechanism cannot continue to perform shifting operations after the resistance of the dial disappears, resulting in inaccurate shifting feedback signals and reducing the riding safety and experience of electric bicycles.

Method used

It employs a transmission disc, an elastic mechanism, and a dual Hall effect sensor. The transmission disc stores energy through the elastic mechanism to keep the dial from rotating when it is blocked by resistance. Once the resistance disappears, it drives the dial to complete the shifting operation. The Hall effect magnet ensures the accuracy of the shifting by transmitting feedback signals.

Benefits of technology

It improves the accuracy and reliability of shift feedback signals, prevents over-shifting caused by excessive rotation, and enhances the riding safety and control precision of electric bicycles.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention discloses an electric driving device of a gear shifting mechanism of a variable-speed hub motor, which comprises a shell, a driving motor arranged in the shell, a driving plate of the driving motor and a driving plate for driving the gear shifting mechanism to act, and is characterized in that a transmission disc is rotationally assembled in the shell, and the driving plate is assembled in the circumferential direction of the transmission disc in an anti-rotation manner through an elastic mechanism; the driving motor is connected with and drives the transmission disc to rotate through the transmission mechanism; the elastic mechanism is used for storing energy when the drive plate is clamped by resistance, and when the resistance disappears, the drive plate is driven to rotate through stored energy to continue to execute gear shifting operation. The device can continue to execute gear shifting operation after the resistance of the driving plate disappears, so that it is ensured that a gear shifting feedback signal is more accurate, the operation reliability of a gear shifting mechanism is higher, and the riding safety of the electric bicycle is effectively improved.
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