SAFETY DEVICE, ELEVATOR SYSTEM AND CONTROL METHOD FOR CONTROLLING THE ELEVATOR SYSTEM

    公开(公告)号:US20180057310A1

    公开(公告)日:2018-03-01

    申请号:US15684036

    申请日:2017-08-23

    发明人: Jinzhong Zhang

    IPC分类号: B66B5/00 B66B5/02 B66B7/02

    摘要: The present invention provides a safety device installed on a car frame of an elevator, and comprising a housing, an elastic element for providing a clamping force, and an engagement member adjacent to two sides of a guide rail, wherein the engagement member is provided with a sensor for measuring a spacing between the engagement member and a guiding face of the guide rail. The present invention further provides an elevator system provided with the above-described safety device and a control method for controlling the elevator system. The safety device according to the invention is able to accurately measure the distance between engagement parts and a guiding face of the guide rail in real time.

    ELEVATOR BRAKE CONTROL SYSTEM
    9.
    发明申请

    公开(公告)号:US20170283212A1

    公开(公告)日:2017-10-05

    申请号:US15509643

    申请日:2014-09-12

    IPC分类号: B66B1/32 B66B5/02 B66B11/00

    摘要: An elevator brake control system (10) is described, in particular for controlling an elevator brake in a machine roomless elevator, the elevator including a drive machine drivingly coupled to an elevator car for moving the elevator car between a plurality of landings in a hoistway, and an elevator brake having at least an engaged condition for holding the elevator car at a fixed position in the hoistway, and a released condition for allowing the elevator car to move along the hoistway; the elevator brake control system (10) comprising a first safety device (T1) and a second safety device (T2), each of the first safety device (T1) and the second safety device (T2) responsive to detection of a failure in any sub-system of the elevator, such as to bring the elevator brake into its engaged condition in response to detection of such failure; wherein each of the first safety device (T1) and the second safety device (T2) comprises a power semiconductor switching device.