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    Electric machine having rotor with slanted permanent magnets
    1.
    发明授权
    Electric machine having rotor with slanted permanent magnets 有权

    公开(公告)号：US10199889B2

    公开(公告)日：2019-02-05

    申请号：US14899005

    申请日：2013-06-20

    Applicant: Otis Elevator Company

    Inventor： Zbigniew Piech ,  Jagadeesh Tangudu ,  Richard A. Himmelmann

    IPC: H02K1/27 ,  H02K16/04 ,  H02K1/30

    Abstract: An electric machine including a rotor and an annularly-shaped first stator is provided. The rotor includes an annularly-shaped rotor body and permanent magnets positionally-fixed relative to the rotor body. The first stator includes circumferentially-spaced stator poles. The rotor and the first stator are concentric and axially-aligned relative to an axial centerline of the electric machine. Each of the permanent magnets creates a magnetic dipole. Each magnetic dipole extends along a dipole axis that passes through the respective permanent magnet. Each dipole axis extends in a first plane. The centerline of the electric machine extends in a second plane that is at least substantially perpendicular to the first plane. Each of the permanent magnets is positioned so that a magnet angle that is between 15° and 75° is defined between the respective dipole axis and a radial axis that extends between the respective permanent magnet and the centerline.

    Linear propulsion system
    4.
    发明授权
    Linear propulsion system 有权

    公开(公告)号：US11377325B2

    公开(公告)日：2022-07-05

    申请号：US16545313

    申请日：2019-08-20

    Applicant: Otis Elevator Company

    Inventor： Jagadeesh Tangudu ,  William A. Veronesi ,  Enrico Manes

    IPC: B66B11/04 ,  B66B17/12 ,  H02K41/03 ,  B66B9/00

    Abstract: A linear propulsion machine and system (10) is disclosed that includes a stator (30) having a plurality of teeth (34) and a mover (32) moveable in a linear direction along the stator (30). The mover may include a plurality of spaced apart ferromagnetic strata (40), a plurality of slots (42), a plurality of wire coils (44), and a plurality of magnet layers (46). Each of the slots (42) may be adjacent to at least one of the strata (40). Each coil (44) may be disposed in a slot (42). Each magnet layer (46) may be sandwiched between strata (40) and disposed inside one of the plurality of coils (44). Each coil (44) is disposed perpendicularly to the direction of magnetic flux of the magnet layer (46) around which the coil (44) is wound. In an embodiment, the teeth (34) or the magnet layer (46) may be disposed at an angle.

    Linear propulsion system
    5.
    发明授权
    Linear propulsion system 有权

    公开(公告)号：US10427913B2

    公开(公告)日：2019-10-01

    申请号：US15100740

    申请日：2013-12-05

    Applicant: Otis Elevator Company

    Inventor： Jagadeesh Tangudu ,  William A. Veronesi ,  Enrico Manes

    IPC: B66B11/04 ,  B66B17/12 ,  H02K41/03 ,  B66B9/00

    Abstract: A linear propulsion machine and system (10) is disclosed that includes a stator (30) having a plurality of teeth (34) and a mover (32) moveable in a linear direction along the stator (30). The mover may include a plurality of spaced apart ferromagnetic strata (40), a plurality of slots (42), a plurality of wire coils (44), and a plurality of magnet layers (46). Each of the slots (42) may be adjacent to at least one of the strata (40). Each coil (44) may be disposed in a slot (42). Each magnet layer (46) may be sandwiched between strata (40) and disposed inside one of the plurality of coils (44). Each coil (44) is disposed perpendicularly to the direction of magnetic flux of the magnet layer (46) around which the coil (44) is wound. In an embodiment, the teeth (34) or the magnet layer (46) may be disposed at an angle.

    ELECTRIC MACHINE HAVING ROTOR WITH SLANTED PERMANENT MAGNETS
    8.
    发明申请
    ELECTRIC MACHINE HAVING ROTOR WITH SLANTED PERMANENT MAGNETS 审中-公开
    具有带有永久磁铁的转子的电机

    公开(公告)号：US20160126790A1

    公开(公告)日：2016-05-05

    申请号：US14899005

    申请日：2013-06-20

    Applicant: Otis Elevator Company

    Inventor： Zbigniew Piech ,  Jagadeesh Tangudu ,  Richard A. Himmelmann

    IPC: H02K1/27 ,  H02K16/04

    CPC classification number: H02K1/27 ,  H02K1/2706 ,  H02K1/276 ,  H02K1/2766 ,  H02K1/2786 ,  H02K1/30 ,  H02K16/04

    Abstract: An electric machine including a rotor and an annularly-shaped first stator is provided. The rotor includes an annularly-shaped rotor body and permanent magnets positionally-fixed relative to the rotor body. The first stator includes circumferentially-spaced stator poles. The rotor and the first stator are concentric and axially-aligned relative to an axial centerline of the electric machine. Each of the permanent magnets creates a magnetic dipole. Each magnetic dipole extends along a dipole axis that passes through the respective permanent magnet. Each dipole axis extends in a first plane. The centerline of the electric machine extends in a second plane that is at least substantially perpendicular to the first plane. Each of the permanent magnets is positioned so that a magnet angle that is between 15° and 75° is defined between the respective dipole axis and a radial axis that extends between the respective permanent magnet and the centerline.

    Abstract translation: 提供了包括转子和环形的第一定子的电机。 转子包括环形转子体和相对于转子体位置固定的永磁体。 第一定子包括周向间隔开的定子极。 转子和第一定子相对于电机的轴向中心线是同心的和轴向对准的。 每个永磁体产生磁偶极子。 每个磁偶极子沿着穿过相应永磁体的偶极轴延伸。 每个偶极轴在第一平面内延伸。 电机的中心线在至少基本上垂直于第一平面的第二平面中延伸。 每个永磁体被定位成使得在相应的偶极轴线和在相应的永磁体和中心线之间延伸的径向轴线之间限定在15°和75°之间的磁体角度。

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