Device for grounding an elevator winder
    21.
    发明授权
    Device for grounding an elevator winder 失效
    电梯络纱机接地装置

    公开(公告)号:US4293889A

    公开(公告)日:1981-10-06

    申请号:US55837

    申请日:1979-07-09

    申请人: Eiki Watanabe

    发明人: Eiki Watanabe

    摘要: A device for grounding an elevator winder including an electric motor controlled by a semiconductor switching element and a first rotary element coupled to the electric motor. A main rope is wound on the first rotary element and bearings are adapted to support the electric motor and first rotary element. A first grounding circuit grounds the bearings through a resistor and a second grounding circuit grounds the main rope without using a resistor. The main rope may also be wound around a second rotary element.

    摘要翻译: 一种用于将包括由半导体开关元件控制的电动马达和耦合到电动马达的第一旋转元件的电梯绕线机接地的装置。 主绳索缠绕在第一旋转元件上,并且轴承适于支撑电动马达和第一旋转元件。 第一个接地电路通过电阻将轴承接地,而第二个接地电路使主绳索接地而不使用电阻。 主绳索也可以缠绕在第二旋转元件周围。

    Portable transport apparatus
    25.
    发明授权

    公开(公告)号:US11772936B1

    公开(公告)日:2023-10-03

    申请号:US17676922

    申请日:2022-02-22

    申请人: Tino Singh

    发明人: Tino Singh

    摘要: The portable transport apparatus is a mechanical structure. The portable transport apparatus forms a ramp. The portable transport apparatus is a portable structure. The portable transport apparatus is a temporary structure. The portable transport apparatus transports cargo between a first horizontal surface and a second horizontal surface. By unaligned is meant that the elevation of the first horizontal surface is different from the elevation of the second horizontal surface. The portable transport apparatus is an electrically powered device. The portable transport apparatus converts electrical energy into mechanical energy used to change the elevation of the cargo between the first horizontal surface and the second horizontal surface.

    DRIVE ENGINE ARRANGEMENT WITH SENSOR-MONITORED FAN FOR AN ELEVATOR SYSTEM

    公开(公告)号:US20180309347A1

    公开(公告)日:2018-10-25

    申请号:US15770293

    申请日:2016-10-26

    申请人: Inventio AG

    摘要: A drive engine arrangement for an elevator system includes a drive engine for driving suspension traction media for displacing an elevator car, a fan for generating a fluid flow for cooling the drive engine and a fluid flow sensor. The fluid flow sensor senses the fluid flow generated by the fan. Accordingly, using the fluid flow sensor, it can be determined whether or not the fan is currently operating. By e.g. comparing the fan's behavior with previous operation patterns and/or by additionally measuring a temperature of the drive engine with a temperature sensor, it can be monitored whether the fan is operating correctly or whether e.g. cooling requirements may be compromised due to a malfunction of the fan. Such monitoring can be performed remotely and/or automatically.

    REFLECTIVE OPTICAL ENCODER WITH CONTAMINANT PROTECTION

    公开(公告)号:US20180212495A1

    公开(公告)日:2018-07-26

    申请号:US15746554

    申请日:2016-08-24

    发明人: HakKi HAN

    摘要: A reflective optical encoder (40) assembly includes a motor and brake assembly at least partially in a motor and brake housing (42). An encoder housing is at least partially received in a cavity (34) of the motor and brake housing. The reflective optical encoder includes an encoder disk (50) and an encoder shaft (44) that rotate with a shaft of the motor. The assembly includes holes (54, 56, 58) in the 40 encoder disk. A seal (80) at an interface between the encoder housing and the encoder shaft to prevent contaminants from the cavity from entering the encoder housing and a packing inside the encoder housing. A packing (84) is situated to prevent any dust or debris associated with the encoder shaft rotating relative to the seal from getting on the encoder disk.

    MOTOR DRIVE
    30.
    发明申请
    MOTOR DRIVE 审中-公开

    公开(公告)号:US20180090925A1

    公开(公告)日:2018-03-29

    申请号:US15643786

    申请日:2017-07-07

    申请人: Kone Corporation

    摘要: The invention relates to a motor drive comprising a rectifier bridge for connection with mains, a converter bridge configured to be connected with an elevator motor and an intermediate DC circuit in-between, whereby between a positive and a negative branch of the intermediate DC circuit at least one capacitor and/or battery is connected,whereby at the mains side of the rectifier bridge a controlled main relay with contacts is arranged, which are configured to connect or disconnect the rectifier bridge with the corresponding mains phase, characterized in that the motor drive comprises a charging circuit being connected between the mains and the rectifier bridge and/or intermediate DC circuit, which charging circuit comprises at least one charging switch connected in series with at least one current limiting component, and which motor drive comprises a voltage sensor connected between the positive and the negative branch of the intermediate DC circuit, which voltage sensor is connected to a fault evaluation circuit comprising at least one reference value and a comparator, which evaluation circuit is configured compare the actual sensor signal of the voltage sensor to the reference value and to operate the main relay dependent on the comparison result.