Patent ID: 7357743
Filing Date: 2008-04-15
Classification: H02K

Abstract:
1. A hub motor comprising: a motor shaft, which is fixed and non-rotational; a hub housing connected to the motor shaft via bearings; a stator of the motor with windings, which are fixedly connected to the motor shaft, wherein the hub motor further comprises: an outer rotor of the motor; and a quasi-planet reduction gear drive mechanism, which includes a sun gear, a plurality of planet gears, a ring gear and a planet carrier, wherein the sun gear is fixedly connected to the outer rotor of the motor and the planet gear drives the hub housing to rotate, and wherein on the opening side of the bowl-shaped ring gear, a ring gear cover is also provided, the ring gear cover being fixed with the bowl-shaped ring gear in the periphery and maintaining a gap with the planet gear.