A motor unit comprises a case, a motor, an input shaft, an output structure, a transmission member, a first tooth portion, a torque detection unit, and a rotator. The case includes a first supporting portion located at a first end of an inside of the case in the axial direction and rotatably supporting the rotator, and a second supporting portion located at a second end of the inside of the case in the axial direction and rotatably supporting the rotator. The rotator includes a second tooth portion meshing with the first tooth portion. A meshing part of the first tooth portion with the second tooth portion is arranged between the input shaft and the rotator in a direction perpendicular to the axis and is arranged radially outward of the rotator than the first supporting portion and the second supporting portion.
POWER TRANSMISSION UNIT FOR ELECTRIC BICYCLES, AND ELECTRIC BICYCLE
2025-03-20
Patent
Electronic Resource
English
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