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    Elevator
    1.
    发明授权
    Elevator 有权

    公开(公告)号：US12098056B2

    公开(公告)日：2024-09-24

    申请号：US16449670

    申请日：2019-06-24

    Applicant: Kone Corporation

    Inventor： Juhamatti Nikander

    IPC: B66B1/32 ,  B66B1/34 ,  B66B5/00 ,  B66B5/02 ,  H02P3/24

    CPC classification number: B66B1/32 ,  B66B1/3492 ,  B66B5/00 ,  B66B5/02 ,  H02P3/24

    Abstract: An elevator may include an elevator motor driving at least one elevator car in a hoisting path, which elevator motor is driven via a frequency converter controlled by a control device of the elevator. The frequency converter includes a rectifier bridge and an inverter bridge and a DC link in-between. The elevator further includes at least one elevator brake acting on a brake element rotating with the rotor of the elevator motor, which elevator brake is driven via a brake drive which is connected to the DC link of the frequency converter an comprises a DC/DC converter having its primary side connected to the DC link and its secondary side connected to a brake circuit comprising at least one brake coil of the elevator brake and at least one rectifying element. In the primary side of the DC/DC converter, a first semiconductor switch is connected which is controlled by the control device of the elevator. In the brake circuit a second semiconductor switch is connected which is also controlled by the control device of the elevator, whereby an earth fault indication circuit is connected between the brake circuit and earth. The earth fault indication circuit includes an transmitting part of an opto-coupler, which opto-coupler has its sensor part connected to an earth fault transmission circuit connected to the control device of the elevator. The control device is configured to control the first and/or second semiconductor switch depending on the signal of the earth fault transmission circuit.

    ELEVATOR CONTROL UNIT AND A METHOD FOR DETERMINING ENERGY AND/OR POWER CONSUMPTION OF AN ELEVATOR
    4.
    发明申请
    ELEVATOR CONTROL UNIT AND A METHOD FOR DETERMINING ENERGY AND/OR POWER CONSUMPTION OF AN ELEVATOR 有权

    公开(公告)号：US20220106156A1

    公开(公告)日：2022-04-07

    申请号：US17468849

    申请日：2021-09-08

    Applicant: KONE Corporation

    Inventor： Pekka Perälä ,  Pekka Perunka ,  Juhamatti Nikander ,  Tapio Tyni

    IPC: B66B1/30 ,  B66B5/00 ,  B66B1/34

    Abstract: An elevator and a method for determining energy and/or power consumption of an elevator, the elevator comprising a drive system comprising a drive unit for driving an electric motor and an elevator control system for controlling the drive system, wherein at least two different operating states are used for the elevator. The method comprises measuring at least part of power and/or energy consumption of the drive system, at least when the elevator is moving, determining duration which the elevator spends in different operating states of the elevator, and determining energy and/or power consumption of the elevator based at least in part on the measured power and/or energy consumption of the drive system and determined and/or estimated energy and/or power consumption in different operating states of the elevator.

    CONDITION MONITORING OF AN INDUCTIVE BRAKING DEVICE
    5.
    发明申请
    CONDITION MONITORING OF AN INDUCTIVE BRAKING DEVICE 审中-公开

    公开(公告)号：US20190330014A1

    公开(公告)日：2019-10-31

    申请号：US16379435

    申请日：2019-04-09

    Applicant: KONE Corporation

    Inventor： Ari Kattainen ,  Juhamatti Nikander ,  Juha-Matti Aitamurto

    IPC: B66B5/00 ,  B66B1/34 ,  B66B19/00 ,  B66B1/36

    Abstract: According to an aspect, there is provided a method for condition monitoring of inductive braking device of an elevator car in an elevator shaft, the method including determining that the elevator car is empty; determining that doors of the elevator car are closed; causing electromechanical brakes to hold the elevator car stationary in the elevator shaft; causing actuation of a braking condition for the elevator car with the inductive braking device; causing the electromechanical brakes to lift while the inductive braking device is in the braking condition; determining a value associated with the inductive braking device in response to causing the electromechanical brakes to lift while the inductive braking device is actuated; and determining an operating condition of the inductive braking device based on the value.

    Elevator
    8.
    发明授权
    Elevator 有权

    公开(公告)号：US11697574B2

    公开(公告)日：2023-07-11

    申请号：US16451267

    申请日：2019-06-25

    Applicant: Kone Corporation

    Inventor： Juhamatti Nikander ,  Arto Nakari

    IPC: H02H3/20 ,  H02H3/44 ,  B66B5/02 ,  B66B1/30 ,  B66B5/00 ,  H02H1/00 ,  H02H7/09 ,  H02H7/12 ,  H02P3/06

    CPC classification number: B66B5/028 ,  B66B1/30 ,  B66B5/0031 ,  H02H1/0007 ,  H02H7/09 ,  H02H7/1216 ,  H02P3/06

    Abstract: The invention relates to an elevator comprising at least one elevator car moved by at least one elevator motor, which elevator motor is driven by a frequency converter controlled by a control device of the elevator, the frequency converter comprising a rectifier bridge, an inverter bridge and a DC link connected in-between, the inverter bridge being connected to the elevator motor and the rectifier bridge being connected to AC mains via three phase supply lines comprising an LCL-filter and a mains switch. The elevator further comprises a backup power supply and a safety device of the control device, which in case of a mains power failure is configured to switch off the mains switch and to connect the backup power supply to the DC link and/or to at least one phase supply line, whereby the rectifier bridge is a bidirectional rectifier bridge being configured to convert DC supplied to the DC link from the backup power supply to an AC voltage supplied to at least two of the phase supply lines connected with at least one load circuit. An earth fault protection circuit for the load circuit is connected between earth and a common terminal of the capacitors of the LCL filter for monitoring an earth fault indicating signal, and which earth fault protection circuit is configured to issue an earth fault signal and/or initiating earth fault safety measures, dependent on the earth fault indicating signal.

    Current cut-off arrangement of an elevator
    9.
    发明授权
    Current cut-off arrangement of an elevator 有权

    公开(公告)号：US11097922B2

    公开(公告)日：2021-08-24

    申请号：US15969527

    申请日：2018-05-02

    Applicant: KONE Corporation

    Inventor： Ari Kattainen ,  Juha-Matti Aitamurto ,  Juhamatti Nikander ,  Arto Nakari

    IPC: B66B1/30 ,  B66B1/32 ,  B66B5/02 ,  G05B9/02 ,  B66B1/34 ,  B66B13/22

    Abstract: The arrangement comprises a drive driving an electric motor, a contactor and a control circuit connecting a control coil of the contactor to a power supply. The control circuit comprises a manual control part provided with a manually operated first switch, and an electronical control part provided with an electronically operated second switch and a processor controlling the second switch. The first switch and the second switch are connected in series in the control circuit with the power supply and the control coil of the contactor so that de-energization of the control coil of the contactor may be done either by the first switch or by the second switch.

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