Stator installation structure for mid-drive motor of moped

Abstract

The invention discloses a stator installing structure for the driving motor of a power-assisted vehicle such as a power-assisted bicycle, a power-assisted tricycle and the like. The driving motor comprises a multifunctional middle axle, a housing and an outer rotor. A stator fixing structure comprises a support frame and a stator. The support frame is axially hollow so as to be concentric with the multifunctional middle axle and positioned within the housing, and has an annular first installing portion. The stator is installed on the first installing portion of the support frame. Compared with the prior art, the stator installing structure for the mid driving motor of the power-assisted vehicle installs the stator on the first installing portion of the support frame. Since the first installing portion has larger heat-dissipating area so that the stator has a better heat dissipation effect and that the multifunctional middle axle can provide corresponding tread frequency and torque information when powered by electric power.

Description

technical field [0001] The invention relates to the field of drive motors, in particular to a stator mounting structure for a central drive motor used in power-assisted bicycles, power-assisted tricycles and other power-assisted vehicles. Background technique [0002] Due to the convenience of use, power-assisted bicycles are more and more used in people's lives. At present, power-assisted bicycles in the industry are mainly mechatronic personal vehicles that use batteries as auxiliary energy on the basis of ordinary bicycles, and are equipped with hub motors, controllers, batteries, steering handles, brake handles and other operating components and display instrument systems. At present, the driving motors of power-assisted bicycles are mainly divided into front hub motors and rear hub motors. Based on the advantages of convenient riding, they are being used by more and more people, especially in high-end power-assisted bicycles. In order to obtain a relatively large torqu...

AI Technical Summary

Problems solved by technology

However, since the stator of the in-wheel motor is installed on the shaft, the heat dissipation area of ​​the stator in contact with the shaft is small, which makes the heat dissipation effect of the stator itself poor. Moreover, when the power-assisted bicycle is driven by electricity, the shaft cannot rotate, and thus cannot provide cadence. , manufacturers can only choose between electric drive mode and human drive mode to produce

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