公开(公告)号：US09882442B2

公开(公告)日：2018-01-30

申请号：US14499527

申请日：2014-09-29

Applicant: NIPPON PISTON RING CO., LTD

Inventor： Masafumi Sakamoto ,  Shigeyoshi Sato ,  Shunsuke Takeguchi ,  Shun Yasuda

IPC: H02K1/27 ,  H02K21/24 ,  H02K1/06

CPC classification number: H02K1/2793 ,  H02K1/06 ,  H02K21/24 ,  H02K2201/03

Abstract: An axial gap type rotating electric machine, having a stator with first tooth parts protruding in an axial direction and formed in a concentric arc-like manner, and a rotor with magnetic poles arranged in a distributed manner in the circumferential direction, and the magnetic poles include second tooth parts that protrude in the axial direction and are formed in a concentric arc-like manner, the second tooth parts being opposedly arranged so as to respectively engage with the first tooth parts with the intermediation of the air gap. The rotor is incorporated in the rotating member so as to be movable in the axial direction and so as not to be rotatable with respect to the rotating member. The rotating electric machine further includes an urging device that makes the air gap between the rotor and the stator adjustable.

公开(公告)号：US09853518B2

公开(公告)日：2017-12-26

申请号：US14372642

申请日：2012-12-06

Applicant: Hitachi Industrial Equipment Systems Co., Ltd.

Inventor： Tsutomu Miyoshi ,  Kenji Yajima

IPC: H02K5/16 ,  H02K5/10 ,  H02K7/08 ,  H02K15/16

CPC classification number: H02K5/10 ,  H02K7/083 ,  H02K7/085 ,  H02K15/16 ,  H02K2201/03

Abstract: This cantilevered-shaft electric motor has no bearing on the load side, and since there also is no end bracket, which is present in ordinary electric motors, the internal stator and rotor are in an unprotected state in a bare state. The present invention provides a cantilevered-shaft electric motor that prevents damage to the stator and rotor during transport, causes handling properties during transport and during coupling to a load side to be favorable, and prevents contaminants from infiltrating. The cantilevered-shaft electric motor is provided with: a stator that is affixed at the inner diameter side of a housing; and a rotor that is rotatably borne disposed facing the inner peripheral side of the stator. The cantilevered-shaft electric motor has a structure such that the rotor is provided with a bearing at the reverse side from the load and the shaft at the load side is supported at an apparatus side. The cantilevered-shaft electric motor is characterized by being provided with a partition plate having a hole through which the rotary shaft penetrates at the load side of the rotor, the partition plate being provided with: a role as an affixing jig that supports the rotary shaft in a manner so that the rotor does not contact the stator during transport; and a role as a protective member that prevents the infiltration of contaminants from the outside.

公开(公告)号：US20170358962A1

公开(公告)日：2017-12-14

申请号：US15534457

申请日：2015-10-22

Applicant: MAGSWITCH TECHNOLOGY INC.

Inventor： David H. Morton ,  Michael H. Reed ,  Thomas R. Whitt ,  Michael C. Blanchard

IPC: H02K1/18 ,  H02K37/12 ,  H02K3/46 ,  H02K3/04 ,  H02K7/00 ,  H02K1/27

CPC classification number: H02K1/18 ,  H02K1/12 ,  H02K1/27 ,  H02K1/2733 ,  H02K3/04 ,  H02K3/46 ,  H02K3/50 ,  H02K5/15 ,  H02K5/161 ,  H02K7/003 ,  H02K21/14 ,  H02K26/00 ,  H02K37/12 ,  H02K37/14 ,  H02K2201/03

Abstract: A torque delivering apparatus, including: polygonal cross-section stator body having a plurality of exterior side faces of even number extending between opposite axial end faces, the stator including cylindrical bore extending between the opposite axial ends and centred on central axis of the stator body; a rotor assembly having cylindrical cross-section sized for rotation within the cylindrical bore about the central axis with at least one permanent magnet and shaft coupled to the magnet for rotation; and a plurality of solenoid coils, each coil having plurality of windings and routed to have sections extending parallel along opposite ones of the plurality of exterior side faces; wherein each of the plurality of coils is configured to selectively receive current and generate magnetic field in the stator that is applied to the rotor magnet, the rotor being subject to magnetic torque within the cylindrical bore for rotating and aligning the magnetic field of the permanent magnet with the generated magnetic field.

公开(公告)号：US09800122B2

公开(公告)日：2017-10-24

申请号：US14073397

申请日：2013-11-06

Applicant: Hamilton Sundstrand Corporation

Inventor： Richard A. Himmelmann

IPC: H02K5/00 ,  H02K15/00 ,  H02K7/00 ,  H02K15/16 ,  H02K1/18 ,  H02K5/15 ,  H02K5/24

CPC classification number: H02K15/0006 ,  H02K1/187 ,  H02K5/00 ,  H02K5/15 ,  H02K5/24 ,  H02K7/006 ,  H02K15/16 ,  H02K2201/03 ,  Y10T29/49009 ,  Y10T29/49721

Abstract: A method for handling a bearingless machine into a driveline includes coaxially aligning a rotor subassembly and a stator subassembly such that first and second circumferential track portions define a substantially complete first circumferential track in communication with a first portal. A first fixture band is inserted into the first circumferential track via the first portal to substantially maintain axial and radial alignment of the rotor subassembly relative to the stator subassembly.

公开(公告)号：US20170264176A1

公开(公告)日：2017-09-14

申请号：US15500012

申请日：2015-07-31

Applicant: FRANCECOL TECHNOLOGY

Inventor： Francois BERNOT ,  Romain MEDARIAN ,  Jonh MORALES MORALES ,  Rodret MBIKOU MOUTSINGA ,  Victor BERNAOLA MENDOZA

IPC: H02K19/20 ,  H02K17/02 ,  H02K3/28 ,  H02K21/14 ,  H02K16/04 ,  H02K1/24

CPC classification number: H02K19/20 ,  H02K1/145 ,  H02K1/246 ,  H02K3/28 ,  H02K16/04 ,  H02K17/02 ,  H02K19/103 ,  H02K19/18 ,  H02K19/22 ,  H02K21/14 ,  H02K21/145 ,  H02K21/227 ,  H02K2201/03 ,  H02K2201/12 ,  H02K2213/03

Abstract: The rotary electrical machine having a homopolar structure includes a number Npe of electrical phases. The machine includes a juxtaposition, along the rotational axis of the rotary electrical machine, of at least one pair of armatures having a number of poles Np, placed on both sides of at least one inductive coil wound around the rotational axis, two adjacent armatures being angularly offset by any electrical angle θs, preferably between 0° and 180°/Npe, and at least one “passive” inductor of ferromagnetic material, separated from the armatures by an air gap. Either the armatures form the rotor, or the inductor and the other element form the stator.

公开(公告)号：US20170228340A1

公开(公告)日：2017-08-10

申请号：US15503304

申请日：2015-08-07

Applicant: Hans-Jurgen Remus

Inventor： Hans-Jurgen Remus

IPC: G06F17/11 ,  H02K19/10

CPC classification number: G06F17/11 ,  G06F17/5009 ,  G06F17/5095 ,  H02K19/103 ,  H02K2201/03

Abstract: The invention relates to a calculation method for designing reluctance systems by balancing the inner and outer system energy using the equation W=1/2Λ (Θa2+Θb2+2ΘaΘb), where 2ΘaΘb≠0, according to claim 1. The invention further relates to a computer program comprising program code means, in particular a computer program stored on a machine-readable medium, for carrying out the disclosed calculation method when the computer program is executed on a computer.

公开(公告)号：US20170222525A1

公开(公告)日：2017-08-03

申请号：US15324838

申请日：2014-08-29

Applicant: Mitsubishi Electric Corporation

Inventor： Atsushi MATSUOKA ,  Hiroyuki ISHII ,  Hiroki ASO ,  Yuto URABE

IPC: H02K21/14 ,  H02K1/14 ,  H02K1/27

CPC classification number: H02K21/14 ,  H02K1/146 ,  H02K1/2706 ,  H02K1/2733 ,  H02K21/16 ,  H02K2201/03 ,  H02K2213/03

Abstract: A synchronous motor includes: a stator core formed by stacking, in the axial direction, magnetic steel sheets stamped into a specific shape; and a cylindrical permanent magnet having magnetic poles formed on its outer circumferential surface and having polar anisotropic orientation corresponding to the number of magnetic poles. The permanent magnet is longer than the stator core in an axial direction. Grooves are formed in a portion of an outer circumferential surface of the permanent magnet that is opposed to the stator core and in a portion of the outer circumferential surface of the permanent magnet that is not opposed to the stator core and is located only on one side in the axial direction, and the grooves extends in the axial direction and are formed at a fixed interval in a rotation direction at an inter-magnetic pole portion.

公开(公告)号：US09680340B2

公开(公告)日：2017-06-13

申请号：US14651118

申请日：2013-11-28

Applicant: SIEMENS AKTIENGESELLSCHAFT

Inventor： Felix Noack ,  Zdenek Spera ,  Christoph Stuckmann ,  Sebastian Weiss

IPC: H02K1/32 ,  H02K1/20 ,  H02K9/06 ,  H02K9/08

CPC classification number: H02K1/20 ,  H02K1/32 ,  H02K9/06 ,  H02K9/08 ,  H02K2201/03

Abstract: An electrically rotating machine, includes a rotor and a stator, the rotor and/or the stator including a laminated core, with an air gap being formed between the rotor and the stator, said rotor having axially and radially extending cooling paths in flow communication with each other and in flow communication with radially extending cooling paths of the stator via the air gap, wherein the radially extending cooling paths of the stator are respectively axially aligned with the radially extending cooling paths of the rotor; at least one fan for conducting an air flow through the axially and radially extending cooling paths of the rotor, the air gap and the cooling paths of the stator, wherein the air gap has at least one constriction defined by sheets of the laminated core of the rotor having an outer radius greater than remaining ones of the sheets of the laminated core of the rotor and/or by sheets of the laminated core of the stator having a smaller inner radius than remaining ones of the sheets of the laminated core of the stator.

公开(公告)号：US09634527B2

公开(公告)日：2017-04-25

申请号：US14485213

申请日：2014-09-12

Applicant: Brose Fahrzeugteile GmbH & Co. KG, Wuerzburg

Inventor： Sunny Zhang ,  Jin Xu ,  Daniel Fiederling ,  Leszek Grzegorz Sawczuk

IPC: H02K21/12 ,  H02K1/02 ,  H02K21/16 ,  H02K1/27 ,  H02K1/06 ,  H02K1/17 ,  H02K3/46

CPC classification number: H02K1/02 ,  H02K1/06 ,  H02K1/17 ,  H02K1/27 ,  H02K1/276 ,  H02K1/2766 ,  H02K1/2773 ,  H02K3/46 ,  H02K21/16 ,  H02K2201/03 ,  H02K2213/03

Abstract: An electrical machine is provided, in particular an electric motor having a stator and also a rotor which is mounted such that it can rotate about a rotor axis and has a rotor body, wherein permanent magnets are arranged in holders of the rotor body. The permanent magnets being composed of a mixed material, wherein the mixture is set in such a way that the mixed material has a remanence field strength Br of between 0.6 Tesla and 1 Tesla and a coercive field strength Hcj of between 1300 and 2500 KA/m. Permanent magnets or composite bodies can be arranged in holders, and the permanent magnets or composite bodies can have a contour, the cross-sectional area of said contour which is situated perpendicular to the longitudinal axis being reduced within the respective holder in the direction of the radially further outer end of said holder.

公开(公告)号：US20170098990A1

公开(公告)日：2017-04-06

申请号：US15312539

申请日：2015-02-05

Applicant: JIANGSU MAGNET VALLEY TECHNOLOGIES CO., LTD.

Inventor： Junfeng XU ,  Fuxing QI

IPC: H02K49/10

CPC classification number: H02K49/106 ,  H02K7/003 ,  H02K15/16 ,  H02K49/108 ,  H02K51/00 ,  H02K2201/03

Abstract: The present invention relates to the technical field of design and manufacture of magnetic couplings and provides a self-alignment protection device for permanent-magnet coupling, the self-alignment protection device comprises a first rotor and a second rotor respectively in fixedly connection with a load shaft (8) and a driving shaft (9), the first rotor and the second rotor being respectively mounted with permanent magnets that are mutually coupled to transmit torque, the first rotor and the second rotor are respectively configured with an inner conical surface and an outer conical surface that are coaxial and have mutually matching tapers, the self-alignment protection device further comprises an axial adjustment mechanism for adjusting the relative axial position between the first rotor and the second rotor. This technical solution solves the technical problem that the existing magnetic couplings are inconvenient to install and adjust.