Noncontact Elevator Using Linear Induction Motor

-Fundamental Consideration on Thrust Characteristics-

Abstract

The current elevator is driven mainly by lifting and pulling up the wire with a pulley. However, deterioration and wear are caused by contact between the pulley and the cable in the conventional method. It is more difficult for maintenance and replacement of cable due to deterioration and abrasion, especially when long cable such as high-rise building is used. Therefore, reduction the number of maintenance and replacement become to be more important problem in the future. In this report, we propose a non-contact elevator using a linear induction motor that can move up and down in a noncontact manner with a wire without requiring a pulley. We carried out electromagnetic analysis to investigate thrust characteristics of proposed actuator and considered possibility of the elevator.