Brake monitoring circuitry, elevator system and brake monitoring method

    公开(公告)号:US11787660B2

    公开(公告)日:2023-10-17

    申请号:US17537587

    申请日:2021-11-30

    CPC classification number: B66B5/0025 G01R19/14

    Abstract: A holding brake monitoring circuit system, an elevator system, and a holding brake monitoring method. The holding brake monitoring circuit system includes a plurality of opening sensors corresponding to holding brakes, wherein the number of the opening sensors is an even number greater than 3, and the opening sensors are configured to be paired to form at least two working groups, and each of the working groups is configured to output an output signal for judging status of the holding brake(s).

    ELEVATOR SYSTEM WITH CABIN DIVIDER
    65.
    发明公开

    公开(公告)号:US20230322523A1

    公开(公告)日:2023-10-12

    申请号:US17717771

    申请日:2022-04-11

    CPC classification number: B66B13/146 B66B13/308 B66B11/024 B66B9/00

    Abstract: An elevator system, having: an elevator car, the elevator car including: a front end that includes a front doorway; an aft end that includes an aft doorway; and a cabin extending from the front end to the aft end; and a divider system operationally coupled to the elevator car within the cabin, intermediate the front and aft ends, that is operational to transition between: a retracted state, where the cabin is undivided; and a deployed state where the divider system divides the cabin into a front zone that is accessible by the front doorway and an aft zone that is accessible by the aft doorway.

    DETERMINATION OF OPERATION MODE FOR AC ASYNCHRONOUS THREE-PHRASE MOTOR IN ESCALATOR SYSTEM

    公开(公告)号:US20230318502A1

    公开(公告)日:2023-10-05

    申请号:US17988456

    申请日:2022-11-16

    CPC classification number: H02P23/08 B66B25/00 H02P25/184 H02P2207/01

    Abstract: A device and method for determining operating modes of an AC asynchronous three-phase motor in an escalator system and computer-readable storage medium on which a computer program for implementing the method is stored. The operating modes include a first operating mode and a second operating mode, the AC asynchronous three-phase motor adopts a triangular wiring mode and a star wiring mode in the first operating mode and the second operating mode, respectively, the device includes: a memory; a processor coupled with the memory; and a computer program stored on the memory and running on the processor, the running of the computer program causes: A. obtaining a slip rate of the AC asynchronous three-phase motor; and B. determining whether the AC asynchronous three-phase motor needs to be switched between the first operating mode and the second operating mode based on the slip rate.

    Detachable panel for an elevator panel assembly

    公开(公告)号:US11760603B2

    公开(公告)日:2023-09-19

    申请号:US16885943

    申请日:2020-05-28

    CPC classification number: B66B1/466 B66B1/50 B66B11/0253

    Abstract: An elevator panel assembly comprises a detachable panel (4), for covering a front surface of an elevator car panel (2b), and a separation member (7). The separation member (7) comprises a head portion (7a) received against a back surface of the detachable panel (4). The detachable panel (4) is magnetically attachable to the elevator car panel (2b) and comprises a through hole (9) which is smaller than the head portion (7a) of the separation member (7) and arranged to sit directly over the head portion (7a). The separation member (7) is configured so that a tool inserted through the through hole (9) engages with the head portion to apply a mechanical force, causing the head portion (7a) to push against the back surface of the detachable panel (4).

    FAULT MONITORING DEVICE AND METHOD FOR ELEVATOR MOTOR

    公开(公告)号:US20230278829A1

    公开(公告)日:2023-09-07

    申请号:US17977048

    申请日:2022-10-31

    Inventor: Hua Zhou Guosong Li

    CPC classification number: B66B5/0031 B66B5/027

    Abstract: A fault monitoring device and method for elevator motor and computer-readable storage medium on which computer programs for implementing the method are stored. A fault monitoring device for an elevator motor, includes: a memory; a processor coupled with the memory; and a computer program stored on the memory and running on the processor, the running of the computer program causes: A. determining one or more components of a stator coil current at one or more characteristic frequencies from a measurement of the stator coil current of the elevator motor; and B. determining, based on the one or more components, whether a fault of turn-to-turn short circuit occurs in the stator coil.

    ELEVATOR POSITION MEASUREMENT SYSTEM
    70.
    发明公开

    公开(公告)号:US20230278827A1

    公开(公告)日:2023-09-07

    申请号:US17974827

    申请日:2022-10-27

    Inventor: Ergün Alkan

    CPC classification number: B66B1/3492 B66B3/023

    Abstract: An elevator system includes an elevator car, an elongate tension member operably connected to the elevator car and configured to move the elevator car, and an elevator car position measurement system. The elevator car position measurement system includes a pulse generator configured to transmit a pulse along the elongate tension member; and a detector unit configured to receive the pulse from the pulse generator after the pulse has been transmitted along a length of the elongate tension member and to record a time at which the pulse is received. One of the pulse generator and the detector unit is arranged to move within the hoistway dependent on a position of the elevator car within the hoistway, such that a length of the elongate tension member along which the pulse is transmitted changes dependent on a position of the elevator car within the hoistway.

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