Electric motor and a method of assembling same
AssigneeSteering Solutions IP Holding Corporation
InventorsZhao Wan, Mojtaba Bahrami Kouhshahi, Robert W. Long, Kenneth P. Webber, JR., Jeffrey T. Klass
Life of this patent
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Abstract
An electric motor assembly comprising a stator having a plurality of stator lamination sheets. Each of the stator lamination sheets includes an annular body and a plurality of stator teeth extending radially inwardly from the annular body to an opening. A rotor is located in the opening. Each of the stator teeth defining a pocket with a dampening element located in the pocket. The dampening element comprises a material that is viscoelastic. The pocket and dampening element are located in a location of the stator tooth that has less magnetic flux than an adjacent area of the stator tooth.
Claims20
A stator tooth for an electric motor comprising:
- a base portion;
- a body portion that extends radially inwardly from the base portion;
- an interface portion extending from the body portion opposite the base portion, the interface portion defining a surface adjacent to a provided rotor;
- a pocket defined by the stator tooth;
- and
- a dampening element located in the pocket.
A stator for an electric motor comprising:
- a plurality of stator lamination sheets;
- each of the plurality of stator lamination sheets including an annular body and a plurality of stator teeth extending radially inwardly from the annular body to an opening for placing a provided rotor;
- at least one of the plurality of stator teeth defining a pocket;
- and
- a dampening element located in the pocket.
An electric motor assembly comprising:
- a stator including a plurality of stator lamination sheets;
- each of the plurality of stator lamination sheets including an annular body and a plurality of stator teeth extending radially inwardly from the annular body to an opening;
- a rotor located in the opening;
- at least one of the plurality of stator teeth defining a pocket;
- and
- a dampening element located in the pocket.
Dependencies are inferred from the claim text.