Middle driving mechanism and power-assisted bicycle with middle driving mechanism

Abstract

The invention discloses a middle driving mechanism, which comprises a shell, a motor, a transmission mechanism and a middle shaft, wherein the shell is connected to a bicycle frame; the motor is arranged in the shell; the transmission mechanism is connected to the motor; the middle shaft is arranged in the shell and is used for being connected to a bicycle treading crank; the axis of the motor is perpendicular to the middle shaft; and the axis of the motor is located in a vertical plane where the axis of the bicycle frame is located after the assembly is completed. The center of gravity of the motor and the center of gravity of the bicycle frame fall on respective axes respectively, and the axis of the motor is located in the vertical plane where the axis of the bicycle frame is located, so that the center of gravity of the middle driving mechanism and the center of gravity of the bicycle frame are located in the same vertical plane, the problems that the center of gravity of the whole bicycle is unstable due to the fact that the center of gravity is biased, the center of gravity is difficult to control and the rollover is easily generated due to the unstable center of gravity and the like are avoided, the stability of a power-assisted bicycle is improved, and the user experience is improved. In addition, the invention further provides the power-assisted bicycle comprising the middle driving mechanism.

Description

technical field [0001] The invention relates to the technical field of power-assisted bicycles, and more specifically relates to a mid-mounted drive mechanism. In addition, the present invention also relates to an assist bicycle comprising the above-mentioned intermediate drive mechanism. Background technique [0002] The power-assisted bicycle is equipped with a power-assisted system, which is a new type of transportation that can realize the integration of human-powered riding and motor-assisted power. [0003] According to the location where the power assist system is installed, the motors of power-assisted bicycles can be divided into two types: mid-mounted motors and hub motors. Among them, mid-mounted motors have greater advantages in terms of technology and performance, and are more widely used. [0004] In the prior art, the axis of the central motor is set parallel to the central axis. Due to the large size of the central drive mechanism, the center of gravity of t...

AI Technical Summary

Problems solved by technology

[0004] In the prior art, the axis of the central motor is set parallel to the central axis. Due to the large size of the central drive mechanism, the center of gravity of the central drive mechanism assembled on the power-assisted bicycle is offset from the center of gravity of the frame, so that the entire power-assisted bicycle The center of gravity of the car is unstable, seriously affecting the user experience of users

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