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System for providing DC power to elevator car

  • US 9,150,385 B2
  • Filed: 10/29/2009
  • Issued: 10/06/2015
  • Est. Priority Date: 10/29/2009
  • Status: Active Grant
First Claim
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1. An elevator door controller system for operating car doors of an elevator car, the system comprising:

  • a DC power supply unit for supplying DC power;

    a travelling cable for delivering DC power to the car, the travelling cable connected between the DC power supply unit and the car;

    a power storage device located on the car for storing DC power from the travelling cable;

    a DC motor for operating the car doors; and

    an elevator door drive powered by the power storage device for driving the DC motor to operate the car doors.

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