High torque repulsion motor

• US 20060091756A1
• Filed: 10/29/2004
• Published: 05/04/2006
• Est. Priority Date: 10/29/2004
• Status: Active Grant

• Current Assignee: Lambert Haner
• Original Assignee: Lambert Haner
• Inventors: Haner, Lambert
• Granted Patent: US 7,459,824 B2
• Time in Patent Office: Days
• US Class Current: 310/180
• CPC Class Codes: H02K 23/66 Structural association with auxiliary electric devices influencing the characteristic of, or controlling, the machine, e.g. with impedances or switches
• CPC Class Codes: H02K 27/00 AC commutator motors or generators having mechanical commutator
• CPC Class Codes: H02K 29/10 using light effect devices

Abstract

A high torque AC motor of the repulsion type that includes at least four stator poles and an armature with chordally oriented windings. The armature windings are cyclically shorted and opened in groups at appropriate angular positions of the armature by a non-contact switch circuit carried on the armature.

Claims

1. A repulsion motor having a stator and an armature supported to rotate about an axis within the stator, the stator having an even number of poles, greater than two, spaced circumferentially about the axis of rotation, each pole having an associated winding, the windings being arranged such that adjacent poles have opposite polarity, the armature having a circular periphery with a plurality of open slots, the armature having a plurality of coils in the slots distributed about its axis of rotation, the coils each being arranged in a generally chordal plane subtending an angle substantially equal to the angle between the centers of adjacent stator poles, and switches on the armature for shorting and opening the armature coils in response to the angular position of the armature relative to the stator whereby an alternating current applied to the stator windings develops torque on the armature where armature coils are selectively shorted by said switches so as to create a magnetomotive force that reacts against the adjacent stator field.

2. A repulsion motor as set forth in claim 1, wherein said switches are arranged to short a group of coils each spaced from one another an arcuate distance corresponding to the arcuate spacing between the centers of adjacent poles.

3. A repulsion motor as set forth in claim 1, wherein said switches include non-contact sensors mounted on said armature.