Electromechanical actuator damping

Patent metadata

Field	Value
Publication number	US-2016315519-A1
Application number	US-201615135854-A
Country	US
Kind code	A1
Filing date	Apr 22, 2016
Priority date	Apr 22, 2015
Publication date	Oct 27, 2016
Grant date	—

Abstract

The invention provides a stator for an electric motor comprising a plurality of teeth separated by slots, and comprising conductive material provided in the slots between two or more of the teeth.

First claim

1 . A stator for an electric motor comprising a plurality of teeth separated by slots, and comprising conductive material provided in the slots between two or more of the teeth.

2 . The stator of claim 1 , wherein the conductive material is non-magnetic.

3 . The stator of claim 1 , wherein the conductive material is in the form of bars extending in the slots from a first axial end of the stator to the second axial end.

4 . The stator of claim 1 , further comprising means for shorting the conductive material.

5 . The stator of claim 4 , wherein the means for shorting comprises a shorting ring in contact with the conductive material.

6 . The stator of claim 5 , wherein the means for shorting comprises a shorting ring at each axial end of the stator.

7 . A motor comprising a rotor and a stator as claimed in claim 1 .

Assignees

• Goodrich Actuation Systems Ltd

Inventors

• Benarous Maamar

Classifications

• H02K3/48

  in slots · CPC title

• H02K1/02

  characterised by the magnetic material · CPC title

• H02K5/24 Primary

  specially adapted for suppression or reduction of noise or vibrations · CPC title

• H02K1/165

  Shape, form or location of the slots · CPC title

• H02K3/20 Primary

  for auxiliary purposes, e.g. damping or commutating · CPC title