US 9,812,931 B2
Apparatus for switching between wye and delta configurations in an electric motor
Robert Gordon Lankin, Waterloo (CA); Stanley Arthur Baer, Waterloo (CA); and Jason Cornelius Wiseman, Waterloo (CA)
Assigned to ACCELERATED SYSTEMS INC., Waterloo (CA)
Appl. No. 14/354,657
Filed by Accelerated Systems Inc., Waterloo (CA)
PCT Filed Oct. 24, 2012, PCT No. PCT/CA2012/000976
§ 371(c)(1), (2) Date Apr. 28, 2014,
PCT Pub. No. WO2013/059914, PCT Pub. Date May 2, 2013.
Claims priority of provisional application 61/551,891, filed on Oct. 26, 2011.
Prior Publication US 2014/0285041 A1, Sep. 25, 2014
Int. Cl. H02K 11/00 (2016.01); B60K 1/00 (2006.01); A01D 34/00 (2006.01); H02K 7/102 (2006.01); H02K 3/52 (2006.01); A01D 69/02 (2006.01); H02K 11/20 (2016.01); B60K 7/00 (2006.01)
CPC H02K 11/001 (2013.01) [A01D 34/00 (2013.01); A01D 69/02 (2013.01); B60K 1/00 (2013.01); H02K 3/522 (2013.01); H02K 7/1021 (2013.01); H02K 11/20 (2016.01); B60K 7/0007 (2013.01)] 18 Claims
OG exemplary drawing
 
1. An electric motor, comprising:
a motor assembly including a rotor and a stator; and
a switching assembly adapted to switch the motor assembly between a wye configuration, a delta configuration, and a neutral configuration,
wherein the switching assembly comprises a plurality of actuators configured to move at least two movable contact members so as to select which configuration of the motor assembly is active,
the at least two movable contact members including a first contact plate and a second contact plate,
the actuators including first actuators for moving the first contact plate and second actuators for moving the second contact plate selectively into contact with a switch plate that is in electrical communication with windings of the stator; and
wherein when the actuators move the first contact plate into contact with the switch plate, the windings of the stator are in the wye configuration, and when the actuators move the second contact plate into contact with the switch plate, the windings of the stator are in the delta configuration.