Patent ID: 9403505
Filing Date: 2016-08-02
CPC Classification: B60R,H02K

Claim Text:
1. A seat belt presenter for moving a tongue plate of a seat belt system to a desired position, comprising: a transmission mechanism for moving the tongue plate from a first position to a second position; and an electric motor for driving the transmission mechanism, the motor comprising a stator and a rotor rotatably mounted to the stator, the rotor comprising a motor shaft, a commutator fixed to the motor shaft, a rotor core fixed to the motor shaft and rotor windings wound about teeth of the rotor core and electrically connected to segments of the commutator, the rotor windings comprises a plurality of winding units, each winding unit comprising at least two coils, the coils of each winding unit being wound about the same teeth and electrically connected to a same pair of segments in parallel; wherein the rotor windings are arranged in two layers, an inner layer and an outer layer, and wherein each winding unit comprises a first coil and a second coil, the first coils being arranged in the inner layer, the second coils being arranged in the outer layer, and wherein each of the first coils is located closer to a rotation center of the rotor than each of the second coils.