Integrated gear shifting hub of outer rotor motor

Abstract

The invention provides an integrated gear shifting hub of an outer rotor motor. The gear shifting hub comprises an outer rotor and a stator arranged in the outer rotor. The stator is arranged in the axial through hole of the outer rotor, and a gap is reserved between the stator and the outer rotor; the stator comprises a stator core and a stator winding, and the stator winding is arranged around the stator core; the outer rotor comprises a rotor yoke and magnetic steel; the magnetic steel is arranged on the inner wall of the through hole of the rotor yoke; the two axial ends of the outer rotor are fixedly connected with gear shifting hubs, the middle shaft penetrates through axial through holes of the outer rotor and the stator and then penetrates out of axial through holes of the gear shifting hubs, and bearings are arranged between the middle shaft and the axial through holes of the gear shifting hubs in a sleeved mode. The stator is fixedly connected with the intermediate shaft, and a gap is reserved between the stator and the magnetic steel; the rotor motor directly drives the gear shifting hubs on the two sides to drive the shifting forks to move so as to achieve gear shifting, the gear shifting mode that a driving motor and a gear shifting motor are combined with a gearbox in the prior art is replaced, the internal occupied space is effectively reduced, and the gear shifting efficiency is improved.

Description

technical field [0001] The invention relates to the field of transmissions, in particular to an outer rotor motor integrated shift hub. Background technique [0002] In the field of shift transmissions in the prior art (such as CN108494125A), the combination of drive motor and gearbox is often used. In some usage occasions, a separate shift motor needs to be provided in order to ensure that the shift is not interrupted. The combination of gear motor and gearbox occupies a large amount of layout space, and involves multi-gear transmission process at the same time, resulting in more torque transmission losses and low shift efficiency. Contents of the invention [0003] In order to solve the defects and deficiencies in the prior art, the present invention provides an outer rotor motor integrated shift hub. [0004] The technical solution provided by the present invention is as follows: an outer rotor motor integrated shift hub, the shift hub includes an outer rotor (1) and a...

AI Technical Summary

Problems solved by technology

[0002] In the field of shift transmissions in the prior art (such as CN108494125A), the combination of drive motor and gearbox is often used. In some usage occasions, a separate shift motor needs to be provided in order to ensure that the shift is not interrupted. The combination of gear motor and gearbox takes up a lot of layout space, and involves multi-gear transmission process at the same time, resulting in more torque transmission loss and low shift efficiency

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