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公开(公告)号：US11515742B2
公开(公告)日：2022-11-29
申请号：US16451908
申请日：2019-06-25
Applicant: Regal Beloit America, Inc.
Abstract: An interior permanent magnet machine is described. The machine includes a rotor rotatable about a central machine axis. The rotor includes a plurality of permanent magnet openings and a plurality of permanent magnets disposed therein. The permanent magnet openings are separated by rotor webs configured to facilitate reducing leakage flux through the rotor webs. The machine also includes a stator disposed coaxially with the rotor and separated from the rotor by a circumferential air gap. The stator includes a plurality of stator teeth that define a plurality of stator slots therebetween. The stator teeth include a stator tooth tip configured to facilitate reducing cogging torque and torque ripple.
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公开(公告)号：US09923423B2
公开(公告)日：2018-03-20
申请号：US14969677
申请日：2015-12-15
Applicant: Regal Beloit America, Inc.
Inventor： Subhash Marutirao Brahmavar , Lester Benjamin Manz , Ludovic Andre Chretien , Changiz Rashidzadeh , Dan Mircea Ionel
CPC classification number: H02K1/2773 , H02K3/02 , H02K15/03 , H02K21/16 , H02K2201/03 , H02K2213/03 , Y10T29/49012
Abstract: In one embodiment, a permanent magnet rotor is provided. The permanent magnet rotor includes at least one permanent magnet and a substantially cylindrical rotor core including an outer edge and an inner edge defining a central opening. The rotor core includes a radius R, at least one pole, and at least one radial aperture extending radially though the rotor core from the outer edge to a predetermined depth less than the radius. The at least one radial aperture is configured to receive the at least one permanent magnet. The rotor further includes at least one protrusion extending into the at least one radial aperture, the at least one protrusion positioned substantially along a bottom of the at least one radial aperture and configured to facilitate retention of the at least one permanent magnet within the at least one radial aperture.
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公开(公告)号：US09692282B2
公开(公告)日：2017-06-27
申请号：US14013628
申请日：2013-08-29
Applicant: Regal Beloit America, Inc.
Inventor： Subhash Marutirao Brahmavar
CPC classification number: H02K15/03 , H02K15/02 , H02K2213/03 , H02K2213/09 , H02K2213/12 , Y10T29/49009 , Y10T29/49012
Abstract: A method for fabricating a rotor for an electric motor is provided. The method includes the steps of fabricating a first set of rotor parts for use in a motor having a first frame size and fabricating a second set of rotor parts for use in a motor having a second frame size. The second frame size is substantially different from the first frame size. The method further includes the steps of fabricating a third set of rotor parts for use in the motor having the first frame size and for use in the motor having the second frame size, ascertaining the desired motor frame size, and selecting one of the first set of rotor parts and the second set of rotor parts in accordance with desired motor frame size. The method also includes the steps of selecting the third set of rotor parts and assembling a rotor with one of the first set of rotor parts and the second set of rotor parts and with the third set of rotor parts, such that a rotor for use with the desired motor frame size is substantially provided.
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公开(公告)号：US11942837B2
公开(公告)日：2024-03-26
申请号：US17158593
申请日：2021-01-26
Applicant: Regal Beloit America, Inc.
Inventor： Subhash Marutirao Brahmavar
CPC classification number: H02K15/03 , H01F13/003 , H02K1/16 , H02K1/2713 , H02K7/003 , H02K5/00
Abstract: In one aspect, axial flux rotor, for use in an axial flux motor prepared by a process, provided. The process includes the steps of stamping a plurality of laminations and overlying one of the external planar faces of one of the plurality of laminations over one of the external planar faces of another of the plurality of laminations. The process also includes the steps of providing a plurality of rotor poles, providing a plurality of magnetizable permanent magnets, and overmolding rotor poles with a moldable material.
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公开(公告)号：US20230042319A1
公开(公告)日：2023-02-09
申请号：US17396164
申请日：2021-08-06
Applicant: Regal Beloit America, Inc.
Inventor： Subhash Marutirao Brahmavar
Abstract: An axial flux motor includes a housing and a rotor assembly rotatably secured to the housing. The rotor assembly includes a body having first and second opposed faces and defining an axis of rotation and plurality of rotor poles including a first rotor pole and a second rotor pole. The first rotor pole and the second rotor pole cooperatively define an axially extending pocket circumferentially therebetween. The rotor assembly further includes a plurality of spaced apart magnets extending from the first face, a first magnet of the plurality of magnets being positioned within the axially extending pocket. The axial flux motor further includes a coreless stator assembly fixedly secured to the housing, the coreless stator assembly including a supporting platform and a plurality of coils attached on the supporting platform.
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公开(公告)号：US20200227961A1
公开(公告)日：2020-07-16
申请号：US16834067
申请日：2020-03-30
Applicant: Regal Beloit America, Inc.
Inventor： Subhash Marutirao Brahmavar , Lester Benjamin Manz , Ludovic Andre Chretien , Changiz Rashidzadeh , Dan Mircea lonel
Abstract: In one embodiment, a permanent magnet rotor is provided. The permanent magnet rotor includes at least one permanent magnet and a substantially cylindrical rotor core including an outer edge and an inner edge defining a central opening. The rotor core includes a radius R, at least one pole, and at least one radial aperture extending radially though the rotor core from the outer edge to a predetermined depth less than the radius. The at least one radial aperture is configured to receive the at least one permanent magnet. The rotor further includes at least one protrusion extending into the at least one radial aperture, the at least one protrusion positioned substantially along a bottom of the at least one radial aperture and configured to facilitate retention of the at least one permanent magnet within the at least one radial aperture.
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公开(公告)号：US20160111925A1
公开(公告)日：2016-04-21
申请号：US14969677
申请日：2015-12-15
Applicant: Regal Beloit America, Inc.
Inventor： Subhash Marutirao Brahmavar , Lester Benjamin Manz , Ludovic Andre Chretien , Changiz Rashidzadeh , Dan Mircea Ionel
CPC classification number: H02K1/2773 , H02K3/02 , H02K15/03 , H02K21/16 , H02K2201/03 , H02K2213/03 , Y10T29/49012
Abstract: In one embodiment, a permanent magnet rotor is provided. The permanent magnet rotor includes at least one permanent magnet and a substantially cylindrical rotor core including an outer edge and an inner edge defining a central opening. The rotor core includes a radius R, at least one pole, and at least one radial aperture extending radially though the rotor core from the outer edge to a predetermined depth less than the radius. The at least one radial aperture is configured to receive the at least one permanent magnet. The rotor further includes at least one protrusion extending into the at least one radial aperture, the at least one protrusion positioned substantially along a bottom of the at least one radial aperture and configured to facilitate retention of the at least one permanent magnet within the at least one radial aperture.
Abstract translation: 在一个实施例中，提供永磁转子。 永磁转子包括至少一个永磁体和基本上圆柱形的转子铁心，其包括限定中心开口的外边缘和内边缘。 转子芯包括半径R，至少一个极，以及至少一个径向孔，其径向延伸通过转子芯从外边缘到小于半径的预定深度。 至少一个径向孔被构造成容纳至少一个永磁体。 所述转子还包括延伸到所述至少一个径向孔中的至少一个突出部，所述至少一个突出部基本上沿着所述至少一个径向孔的底部定位，并被构造成有利于将所述至少一个永磁体保持在所述至少一个 一个径向孔径。
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公开(公告)号：US11277045B2
公开(公告)日：2022-03-15
申请号：US16834067
申请日：2020-03-30
Applicant: Regal Beloit America, Inc.
Inventor： Subhash Marutirao Brahmavar , Lester Benjamin Manz , Ludovic Andre Chretien , Changiz Rashidzadeh , Dan Mircea Ionel
Abstract: In one embodiment, a permanent magnet rotor is provided. The permanent magnet rotor includes at least one permanent magnet and a substantially cylindrical rotor core including an outer edge and an inner edge defining a central opening. The rotor core includes a radius R, at least one pole, and at least one radial aperture extending radially though the rotor core from the outer edge to a predetermined depth less than the radius. The at least one radial aperture is configured to receive the at least one permanent magnet. The rotor further includes at least one protrusion extending into the at least one radial aperture, the at least one protrusion positioned substantially along a bottom of the at least one radial aperture and configured to facilitate retention of the at least one permanent magnet within the at least one radial aperture.
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公开(公告)号：US10951098B2
公开(公告)日：2021-03-16
申请号：US15937016
申请日：2018-03-27
Applicant: Regal Beloit America, Inc.
Inventor： Subhash Marutirao Brahmavar
Abstract: A method of manufacturing an axial flux motor includes providing a stator; providing a rotor having a first external face and a second external face opposed and parallel the first external face; rotatably securing the rotor to the stator about a rotor center of rotation; providing a permanent magnet having a longitudinal axis thereof; fixedly securing the magnet to the rotor with the longitudinal axis positioned in a radial direction relative to the rotor center of rotation and so defining radially inward surface and an opposed radially outward surface, the magnet having a first face adjacent the first external face of the rotor and having a second face adjacent the second external face of the rotor; partially magnetizing the magnet by positioning a first magnetizing device adjacent the first face of the magnet; and magnetizing the magnet by positioning a second magnetizing device adjacent the second face of the magnet.
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公开(公告)号：US09831727B2
公开(公告)日：2017-11-28
申请号：US13652084
申请日：2012-10-15
Applicant: Regal Beloit America, Inc.
Inventor： Subhash Marutirao Brahmavar
IPC: H02K21/12 , H02K1/06 , H02K15/00 , H02K1/16 , H02K1/27 , H02K21/16 , H02K1/02 , H02K3/02 , H02K15/02
CPC classification number: H02K1/16 , H02K1/02 , H02K1/27 , H02K3/02 , H02K15/00 , H02K15/02 , H02K21/16 , H02K2213/03 , Y02P80/30 , Y10T29/49009
Abstract: In one embodiment, an electric machine is provided. The electric machine includes a machine housing and a stator disposed at least partially within the housing, the stator comprising a plurality of teeth and an aluminum winding wound around at least one tooth of the plurality of teeth. The electric machine further includes a radially embedded permanent magnet rotor disposed at least partially within the housing, the rotor comprising at least one radially embedded permanent magnet and configured to provide increased flux to reduce motor efficiency loss compared to a copper winding.
