Rotor lamination and motor having the same
AssigneeUbtech Robotics Corp Ltd
InventorsYoujun Xiong, Yan Zhou, Youpeng Li, Wenhua Fan
Life of this patent
Estimating the term…
Abstract
An inner rotor lamination for a permanent magnet direct current motor includes a yoke and a plurality of teeth connected to the yoke. Each of the teeth has a tooth body connected to the yoke and a tooth tip connected to a distal end of the tooth body. A winding slot is formed between each two adjacent tooth bodies. One tooth tip defines one or more first through holes adjacent to a radial end thereof, and one or more second through holes. Each of the one or more second through holes is located adjacent to one circumferential end of the at least one tooth tip.
Claims11
An inner rotor lamination for a permanent magnet direct current motor, comprising:
- a yoke and a plurality of teeth connected to the yoke, each of the teeth comprising a tooth body connected to the yoke and a tooth tip connected to a distal end of the tooth body, a winding slot being formed between each two adjacent tooth bodies, at least one tooth tip defining one or more first through holes adjacent to a radial end thereof and one or more second through holes, each of the one or more second through holes being located adjacent to one circumferential end of the at least one tooth tip.
A rotor core for a permanent magnet direct current motor comprising a plurality of rotor core laminations that are stacked together, each of the rotor core laminations comprising:
- a yoke and a plurality of teeth connected to the yoke, each of the teeth comprising a tooth body connected to the yoke and a tooth tip connected to a distal end of the tooth body, a winding slot being formed between each two adjacent tooth bodies, at least one tooth tip defining one or more first through holes adjacent to a radial end thereof, and one or more second through holes so as to allow the rotor core to have a reduced magnetic permeability, each of the one or more second through holes being located adjacent to one circumferential end of the tooth tip.
A permanent magnet direct current (PMDC) motor comprising a rotor core comprising a plurality of laminations that are stacked together, each of the laminations comprising:
- a yoke and a plurality of teeth connected to the yoke, each of the teeth comprising a tooth body connected to the yoke and a tooth tip connected to a distal end of the tooth body, a winding slot being formed between each two adjacent tooth bodies, at least one tooth tip defining one or more first through holes adjacent to a radial end thereof, and one or more second through holes so as to allow the rotor core to have a reduced magnetic permeability, each of the one or more second through holes being located adjacent to one circumferential end of the tooth tip.
Dependencies are inferred from the claim text.