公开(公告)号：US20190241259A1

公开(公告)日：2019-08-08

申请号：US16341941

申请日：2017-10-13

申请人： Panasonic Intellectual Property Management Co., Ltd.

发明人： SHINICHI TSUTSUMI ,  YUICHI YOSHIKAWA ,  SHO KOYAMA ,  KEIICHIRO NUKADA ,  HIROSHI UEDA ,  YUKI NAKADE

IPC分类号： B64C27/08 ,  B64C39/02 ,  B64D27/24 ,  H02K1/27

CPC分类号： B64C27/08 ,  B64C39/02 ,  B64C2201/027 ,  B64C2201/042 ,  B64C2201/108 ,  B64D27/24 ,  H02K1/22 ,  H02K1/27 ,  Y02T50/44 ,  Y02T50/62

摘要： A flying device includes a plurality of rotary vanes, a motor element serving as a driving source for each of the plurality of rotary vanes, the motor element driving and rotating a main shaft of the rotary vanes, and a drive circuit. The motor element includes a stator, a rotor, and a pair of bearings. The stator includes a stator core having an annular yoke and a plurality of teeth projecting inward from the annular yoke, and stator windings wound respectively around the plurality of teeth of the stator core. The rotor includes a permanent magnet of a cylindrical shape located inside the stator core via a gap, the permanent magnet being positioned counter to the plurality of teeth, a rotor yoke in contact with a cylindrical inner wall surface of the permanent magnet, and a shaft pivotally supported at an axis of the rotor yoke, the shaft being connected to the main shaft. The pair of bearings pivotally support the shaft to allow the shaft to rotate freely, and are located respectively on both sides of a direction of a rotating shaft of the rotor. The permanent magnet has anisotropically arranged magnetic poles, and a number of the magnetic poles is P representing an even number. The permanent magnet is configured such that the rotor yoke is smaller in weight than the permanent magnet. The drive circuit controls a stator current supplied to the stator windings.

公开(公告)号：US20190238023A1

公开(公告)日：2019-08-01

申请号：US16255995

申请日：2019-01-24

申请人： HONDA MOTOR CO., LTD.

发明人： Kengo OHIRA

IPC分类号： H02K5/15 ,  H02K1/22 ,  H02K7/00

CPC分类号： H02K5/15 ,  H02K1/22 ,  H02K7/003

摘要： A rotor of a rotating electrical machine includes: a rotor shaft; a rotor yoke press-fitted to an outer circumferential portion of the rotor shaft; and a pair of end plates disposed on both axial sides of the rotor yoke. One end plate of the pair of the end plates is disposed between a plate fixing portion provided in the rotor shaft and one axial end surface of the rotor yoke, the plate fixing portion includes an inclined surface which is inclined such that an outer diameter size gradually increases as it goes away from the one axial end surface of the rotor yoke along a press-fitting direction of the rotor yoke, and an inner circumferential surface of the one end plate includes an inner circumferential inclined surface in contact with the inclined surface of the plate fixing portion.

公开(公告)号：US20190215992A1

公开(公告)日：2019-07-11

申请号：US16244476

申请日：2019-01-10

申请人： DENSO CORPORATION

发明人： Toshinori MARUYAMA

IPC分类号： H05K7/20 ,  H02K1/12 ,  H02K1/22 ,  H02K5/20 ,  H02K11/042

CPC分类号： H05K7/20918 ,  H02K1/12 ,  H02K1/22 ,  H02K5/20 ,  H02K11/042

摘要： A rotating electric machine includes a machine main body, a frame member and a rectifier. The machine main body is configured to generate alternating current. The frame member holds the machine main body. The rectifier is provided axially outside the frame member and has a rectification circuit configured to rectify the alternating current generated in the machine main body into direct current. The rectifier includes first and second heat sinks that are located to axially overlap each other, first rectifying elements mounted to the first heat sink and constituting an upper arm of the rectification circuit, and second rectifying elements mounted to the second heat sink and constituting a lower arm of the rectification circuit. The second heat sink is located closer than the first heat sink to the frame member. The surface area of the second heat sink is greater than the surface area of the first heat sink.

公开(公告)号：US20190214889A1

公开(公告)日：2019-07-11

申请号：US16325435

申请日：2017-09-29

申请人： Nidec Corporation

发明人： Takayuki MIGITA ,  Takeshi HONDA ,  Hirofumi MUTO ,  Osamu FUJIMOTO ,  Hiroshi KITAGAKI ,  Yasuaki NAKAHARA

IPC分类号： H02K15/00 ,  H02K1/27

CPC分类号： H02K15/0043 ,  H02K1/22 ,  H02K1/27 ,  H02K1/2773 ,  H02K15/0068 ,  H02K15/02

摘要： A rotor core includes laminate steel plates extending in a radial direction with respect to a central axis. The laminate steel plates each include a base portion on a radially outer side of the central axis, and pieces separately disposed on a radially outer side of the base portion with penetrating portions therebetween, and arranged side by side at predetermined intervals in a circumferential direction. The laminate steel plates are laminated in an axial direction. The laminated steel plate at an upper end in the axial direction includes at least one of an outward projection extending radially outward from an outer edge portion of the base portion and an inward projection extending radially inward from an inner edge portion of the piece, and the laminated steel plate at a lower end in the axial direction includes an intervening portion between the base portion and the piece portion.

公开(公告)号：US20190207480A1

公开(公告)日：2019-07-04

申请号：US16323640

申请日：2017-08-08

申请人： Nidec Corporation

发明人： Yasuo YAMAGUCHI

IPC分类号： H02K9/193 ,  F16N1/00 ,  F16N13/20 ,  F16N7/40 ,  F04C2/10 ,  F16K17/04 ,  H02K5/20

CPC分类号： F04C2/10 ,  F04C2/102 ,  F04C2/103 ,  F04C13/002 ,  F04C13/005 ,  F04C15/0088 ,  F04C15/0096 ,  F04C15/06 ,  F04C2210/14 ,  F04C2280/02 ,  F16K17/04 ,  F16K17/0406 ,  F16N1/00 ,  F16N7/40 ,  F16N13/20 ,  F16N2210/18 ,  F16N2280/00 ,  H02K1/12 ,  H02K1/22 ,  H02K5/20 ,  H02K7/003 ,  H02K7/14 ,  H02K9/19 ,  H02K9/193 ,  H02K11/225

摘要： A drive device includes a rotor, a stator, a housing including an accommodation portion to store oil and accommodate the rotor and the stator, a pump driven through a motor shaft, and a valve in the housing. The pump includes a pump room in the housing, a suction port through which the oil is to be sucked into the pump room, and a discharge port through which the oil is to be discharged from the pump room. The housing includes a first oil passage connected to the discharge port and a branch oil passage that is connected to the first oil passage and is open to an inside of the accommodation portion on an upper side in a vertical direction of the stator. The motor shaft includes a second oil passage located in the motor shaft and connected to the first oil passage and a first through-hole connecting the second oil passage and an outer circumferential surface of the motor shaft. The valve is provided in the branch oil passage, and switched between a closed state in which a flow of the oil in the branch oil passage is blocked and an open state in which the flow of the oil in the branch oil passage is permitted.

公开(公告)号：US20180358882A1

公开(公告)日：2018-12-13

申请号：US15682601

申请日：2017-08-22

申请人： Shiqiao LIU

发明人： Shiqiao LIU

IPC分类号： H02K99/00 ,  H02K1/22 ,  H02K1/17

CPC分类号： H02K99/20 ,  H02K1/17 ,  H02K1/22 ,  H02K21/28 ,  H02K53/00

摘要： The present invention discloses a novel electric motor, which comprises a stator and a rotor. The stator is a permanent magnet. The rotor comprises a rotor coil and a capacitor. The rotor coil and the capacitor are connected in series to form a resonant driving circuit. The resonant driving circuit is used to convert a natural electromagnetic field into a current to drive the rotor to rotate. The motor of the present invention can rotate without any external power, thereby solving the technical problem that the use of the external power makes a restriction to the further development and application of the motor, and solving the problem of motor energy consumption.

公开(公告)号：US10008914B2

公开(公告)日：2018-06-26

申请号：US15211769

申请日：2016-07-15

申请人： HARSCO TECHNOLOGIES LLC

发明人： Reza Sami ,  Kendall Koon

IPC分类号： H02K33/00 ,  H02K1/12 ,  H02K1/22 ,  H02K11/30 ,  E01B27/20 ,  H02K33/12

CPC分类号： H02K33/00 ,  B06B1/045 ,  E01B27/16 ,  H02K1/12 ,  H02K1/22 ,  H02K11/30 ,  H02K33/12

摘要： A rail maintenance vehicle includes a frame, a workhead, and a vibrating unit. The frame includes wheels that travel along rails. The vibrating unit is coupled to the workhead and includes a rotor, a stator, a first rotor coil coupled to the rotor and a first stator coil coupled to the stator.

公开(公告)号：US20180123415A1

公开(公告)日：2018-05-03

申请号：US15848271

申请日：2017-12-20

申请人： Persimmon Technologies, Corp.

发明人： Martin Hosek ,  Sripati Sah ,  Jayaraman Kirshnasamy

IPC分类号： H02K3/28 ,  H02K1/02 ,  H02K21/16 ,  H02K21/12 ,  B22F3/115 ,  B22F1/02 ,  H02K1/12 ,  H01F1/24 ,  C23C8/02 ,  C23C4/06 ,  C23C8/10 ,  H02K1/22 ,  H01F41/02

CPC分类号： H02K3/28 ,  B22F1/02 ,  B22F3/115 ,  C22C2202/02 ,  C23C4/06 ,  C23C8/02 ,  C23C8/10 ,  H01F1/24 ,  H01F41/0246 ,  H02K1/02 ,  H02K1/12 ,  H02K1/22 ,  H02K21/12 ,  H02K21/16

摘要： A motor comprises a stator comprising at least one core; a coil wound on the at least one core of the stator; a rotor having a rotor pole and being rotatably mounted relative to the stator; and at least one magnet disposed between the rotor and the stator. The at least one core comprises a composite material defined by iron-containing particles having an alumina layer disposed thereon.

公开(公告)号：US20180123408A1

公开(公告)日：2018-05-03

申请号：US15830012

申请日：2017-12-04

申请人： Zhankui XU

发明人： Zhankui XU

IPC分类号： H02K1/17 ,  H02K3/04 ,  H02K1/22 ,  H02K7/00

CPC分类号： H02K1/17 ,  H02K1/22 ,  H02K3/04 ,  H02K7/003 ,  H02K21/04 ,  H02K21/24 ,  H02K21/26 ,  H02K53/00

摘要： The disc-type magnetism-increasing DC generator is a pure magnetic DC generator composed of a drive motor and a DC generator, as well as a disc-brush conductive output device; the DC generator stator is composed of a permanent magnetic source and amagnetism-increasing coil casing; the rotor is composed of a generator disc and a shaft, as well as conductive inner-shaft terminals; the drive motor and the DC generator run on the same shaft; when the motor rotates after it is electrified, the generator disc rotor cuts the magnetic line of force and generates electricity; and a current is generated when an electrical equipment consumes the electricity; when the current passes the magnetism-increasing coil, it generates a magnetic potential, enhancing the magnetic field strength of the DC generator's magnetic source, thereby increasing magnetic flux and output power of the DC generator.

公开(公告)号：US20180115205A1

公开(公告)日：2018-04-26

申请号：US15560813

申请日：2016-03-24

申请人： NITTO DENKO CORPORATION

发明人： Makoto FUJIHARA ,  Kenichi FUJIKAWA ,  Takashi YAMAMOTO ,  Shoichiro SAITO

IPC分类号： H02K1/27 ,  H01F1/057 ,  H01F1/053 ,  B22F3/105 ,  H01F1/08 ,  H02K15/03 ,  H01F7/02 ,  C22C38/00

CPC分类号： H02K1/2766 ,  B22F3/105 ,  C22C38/005 ,  H01F1/0536 ,  H01F1/0577 ,  H01F1/086 ,  H01F7/02 ,  H01F41/0273 ,  H02K1/22 ,  H02K1/27 ,  H02K15/03

摘要： This invention provides for a rare-earth permanent magnet-forming sintered body obtained by integrally sintering magnet material particles containing a rare-earth substance while shaping the magnet material particles, a rare-earth permanent magnet obtained by magnetizing the sintered body, and a rotary machine in which the permanent magnet is embedded.