Linear flux switching permanent magnet motor

    公开(公告)号:US10826368B2

    公开(公告)日:2020-11-03

    申请号:US15945521

    申请日:2018-04-04

    Abstract: A linear flux switching permanent magnet (FSPM) motor includes a longitudinal, linear stator with stator teeth facing an air gap and a mover including at least one armature including armature teeth embedding at least one permanent magnet, which armature teeth are spaced apart by slots for receiving an armature winding, and which armature teeth have an extended width portion towards the air gap. The extended width portion of the armature teeth begins in the longitudinal direction of the armature teeth already at the level of the armature windings.

    METHOD FOR OPERATING AN ELEVATOR AND ELEVATOR

    公开(公告)号:US20210155446A1

    公开(公告)日:2021-05-27

    申请号:US17072687

    申请日:2020-10-16

    Abstract: A method for operating, such as commissioning, an elevator, and an elevator are presented herein. The elevator comprises an electric linear motor for moving movable units. The method comprises moving a first movable unit along a linear stator of the electric linear motor in the elevator shaft, and determining at least one characteristic, such as a floor position or an air gap width of the electric linear motor, at a plurality of elevator shaft positions by the first movable unit, such as by a winding, a coil, or a sensor, during the moving. The method further comprises storing the determined at least one characteristic, and controlling moving of at least a second movable unit, such as comprising another of the elevator cars or a second motor unit, by utilizing the stored at least one characteristic.

    ELECTRIC LINEAR MOTOR
    5.
    发明申请

    公开(公告)号:US20190300329A1

    公开(公告)日:2019-10-03

    申请号:US16273310

    申请日:2019-02-12

    Abstract: The invention refers to an electric linear motor, control apparatus, transport system and a method. The electric linear motor comprises a longitudinal stator beam; at least one mover at least partially surrounding the stator beam and adapted to move along the stator beam; which stator beam comprises at least two side faces located at opposite sides of the stator beam, each of the side faces carrying ferromagnetic poles spaced apart by a pitch, and which mover comprises at least two counter-faces facing the respective side faces of the stator beam. The mover has in at least one of said counter-faces rotor units having at least one winding and at least one permanent magnet arranged to co-act with the ferromagnetic poles of the respective side faces of the stator beam. The ferromagnetic stator poles of the stator beam and the rotor units of the mover are used for generating propulsion forces for driving the mover along the stator beam as well as for generating attraction forces to levitate the mover around the stator beam while driving.

    CONVEYOR FOR PASSENGERS OR GOODS
    6.
    发明申请

    公开(公告)号:US20210024329A1

    公开(公告)日:2021-01-28

    申请号:US16916357

    申请日:2020-06-30

    Abstract: The invention relates to a conveyor for passengers and/or goods, the conveyor comprising at least one linear electric motor formed by linear stator beams with stator poles being located in a fixed correlation to an environment, and at least one mover co-acting and moving along the stator beams, the stator beams comprising at least a first stator beam extending in a first movement path in a first direction of the passenger conveyor and at least a second stator beam extending in a second movement path in a second direction of the passenger conveyor, wherein the first direction and the second direction are different directions, selected from the group of horizontal, inclined and vertical direction, and which mover is adapted to face the respective stator poles of the stator beam, wherein the mover has at least one winding arranged to co-act with the stator poles; the linear motor being controlled by a motor drive, which is controlled by a drive control. The drive control comprises a set of control parameters, and whereby the drive control is configured to use at least partly different set of control parameters when associated with the first stator beam than with the second stator beam, and which drive control is further connected with an input for the position of the mover, and that the drive control is configured to select the control signals for the mover dependent on the location of the mover on either the first or second stator beam.

    ELECTRIC LINEAR MOTOR
    7.
    发明申请

    公开(公告)号:US20210006143A1

    公开(公告)日:2021-01-07

    申请号:US16909213

    申请日:2020-06-23

    Inventor: Tuukka Korhonen

    Abstract: The invention relates to an electric linear motor for a transport system, the electric linear motor being formed by at least one linear stator rail with stator poles being located in a fixed correlation to an environment, and at least one mover co-acting and moving along the stator rail, the linear stator rail comprising at least one horizontal stator rail, having upper stator poles extending upwards from the horizontal stator rail and lower stator poles extending downwards from the horizontal stator rail. According to the invention at least one of the physical characteristic of the upper stator poles differs from that of the lower stator poles, as to cope with gravitational forces acting on the mover in normal direction of the horizontal stator rail.

    Measuring arrangement including magnetic band and elevator system containing the same
    9.
    发明授权
    Measuring arrangement including magnetic band and elevator system containing the same 有权
    测量装置包括磁带和含有该磁带的电梯系统

    公开(公告)号:US08596420B2

    公开(公告)日:2013-12-03

    申请号:US13649012

    申请日:2012-10-10

    CPC classification number: B66B1/3492 H02K7/1008 H02K11/215

    Abstract: A measuring arrangement for the measurement of the position and/or movement of a rotor of an electric machine, an electric drive including the measuring arrangement, and an elevator system including the electric drive are provided. The measuring arrangement includes a magnetic band whose magnetic property is so implemented that it varies in the longitudinal direction of the band.

    Abstract translation: 提供了用于测量电机的转子的位置和/或运动的测量装置,包括测量装置的电驱动器和包括电驱动器的电梯系统。 测量装置包括磁带,其磁特性被实现为其在带的纵向方向上变化。

    Radial flux permanent magnet elevator motor

    公开(公告)号:US11136221B2

    公开(公告)日:2021-10-05

    申请号:US16104002

    申请日:2018-08-16

    Abstract: A radial flux permanent magnet elevator motor includes a motor frame forming the stator frame having fixing points to be fixed to an elevator guide rail, which frame has a back wall facing and/or abutting with the guide rail, which motor frame includes an axially extending flange protruding away from the back wall in the direction of the rotor, and which motor frame includes at least one axially extending first wall section in a defined radial distance from the axis of the motor frame, which first wall section is configured to support a stator winding of the motor. The rotor includes a central hub protruding into the flange of the motor frame and is rotatively supported within the flange via bearings, which rotor includes a traction sheave in a first radial distance from the motor axis and a ring-like support wall in a second radial distance from the motor axis for supporting permanent magnets, which second distance is larger than the first distance, and whereby the stator winding and the permanent magnets form a radial air gap.

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