Invention Grant
- Patent Title: Elevator wireless power transfer system
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Application No.: US15244362Application Date: 2016-08-23
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Publication No.: US10135299B2Publication Date: 2018-11-20
- Inventor: Suman Dwari , Dang V. Nguyen
- Applicant: OTIS ELEVATOR COMPANY
- Applicant Address: US CT Farmington
- Assignee: OTIS ELEVATOR COMPANY
- Current Assignee: OTIS ELEVATOR COMPANY
- Current Assignee Address: US CT Farmington
- Agency: Cantor Colburn LLP
- Main IPC: H02J50/12
- IPC: H02J50/12 ; B66B11/04 ; B66B9/00

Abstract:
An elevator system includes a car arranged to move along a hoistway and a wireless power transfer system that includes a secondary resonant coil mounted to the car and configured to induce an electro-motive force and output a voltage or current, and a plurality of primary resonant coils distributed along the hoistway and configured to transmit power to the secondary resonant coil when a primary resonant coil is adjacent to the secondary resonant coil and is selectively energized. A control system of the wireless power transfer system is configured to select and energize the plurality of primary resonant coils, and includes a plurality of switches with each one being associated with a respective one of the plurality of primary resonant coils. The plurality of switches are configured to selectively close to energize a selected one of the plurality of primary resonant coils associated with a location of the car.
Public/Granted literature
- US20170057792A1 ELEVATOR WIRELESS POWER TRANSFER SYSTEM Public/Granted day:2017-03-02
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