Six-phase motor for elevator system
AssigneeOtis Elevator Company
InventorsZbigniew Piech, Cezary Jedryczka, Wojciech Szelag
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Abstract
An elevator system includes an elevator car to travel in a hoistway; a linear propulsion system to impart force to the elevator car, the linear propulsion system including: a secondary portion mounted to the elevator car, the secondary portion including a plurality of magnetic poles; and a primary portion mounted in the hoistway, the primary portion including a plurality of coils; and a drive coupled to the primary portion, the drive providing drive signals to at least a section of the primary portion; wherein the drive generates 6 phases of drive signals, each coil associated with one of the 6 phases.
Claims22
An elevator system comprising:
- an elevator car to travel in a hoistway;
- a linear propulsion system to impart force to the elevator car, the linear propulsion system comprising:
- a secondary portion mounted to the elevator car, the secondary portion including a plurality of magnetic poles;
- and
- a primary portion mounted in the hoistway, the primary portion including a plurality of coils;
- and
- a drive coupled to the primary portion, the drive providing drive signals to at least a section of the primary portion;
- wherein the drive generates 6 phases of drive signals, each coil associated with one of the 6 phases.
A propulsion system comprising:
- a primary portion including a plurality of coils;
- a secondary portion including a plurality of magnetic poles;
- and
- a drive coupled to the primary portion, the drive providing drive signals to at least a section of the primary portion;
- wherein the drive generates 6 phases of drive signals, each coil associated with one of the 6 phases.
Dependencies are inferred from the claim text.