Electric wheel hub drive for a vehicle, in particular a bicycle, including a stator with an ironless hollow cylindrical stator winding

摘要

The invention relates to an electric wheel hub drive for a vehicle, in particular a bicycle. The wheel hub drive comprises a hub housing that is pivot-mounted about an axis and a brushless electric motor coaxially arranged with regard to the axis and including a rotor and a stator for driving the hub housing. The rotor of the electric motor includes at least one permanent magnet. According to the invention, the stator includes an ironless stator winding.

主权项

1. An electric wheel hub drive for a vehicle, comprising:
a hub housing pivot-mounted about an axis; a brushless electric motor coaxially arranged to said axis and including a rotor and a stator for driving the hub housing, wherein the stator includes a hollow-cylindrical stator winding, and wherein the rotor includes at least one permanent magnet and is arranged as an internal rotor radially within the stator winding, wherein the stator winding is a core-less stator winding and includes a plurality of windings circumferentially overlapping each other; a motor housing of the electric motor that encloses the stator winding; a magnetically soft yoke arranged between the stator winding and the motor housing; and a temperature sensor provided for monitoring an operating temperature of the electric motor, and the temperature sensor is located on the axial end of the yoke and the axial end of the stator winding, and the temperature sensor is in direct contact with the yoke and the stator winding.