Invention Grant
- Patent Title: Automatic rescue and charging system for elevator drive
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Application No.: US15688288Application Date: 2017-08-28
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Publication No.: US11053096B2Publication Date: 2021-07-06
- Inventor: Ismail Agirman
- 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: B66B5/02
- IPC: B66B5/02 ; B66B5/00 ; B66B1/30
Abstract:
A method and system for providing power to an elevator hoist motor is disclosed. An isolated bi-directional dc/dc converter is coupled between a power converter and a power inverter. A battery is coupled to the isolated bi-directional dc/dc converter. A processor is configured to sense power levels and couple the battery to an elevator hoist motor via the isolated bi-directional dc/dc converter depending on the voltage of the main power supply. The isolated bi-directional dc/dc converter is also configured to provide power to charge the battery.
Public/Granted literature
- US20190062111A1 AUTOMATIC RESCUE AND CHARGING SYSTEM FOR ELEVATOR DRIVE Public/Granted day:2019-02-28
Information query
