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11. 发明申请

US20230017419A1 APPARATUS FOR MANUFACTURING ROTOR, METHOD OF MANUFACTURING ROTOR, AND ROTOR 有权
公开(公告)号：US20230017419A1
公开(公告)日：2023-01-19
申请号：US17954061
申请日：2022-09-27
申请人： DENSO CORPORATION
发明人： Masaru HARADA , Ritsurou HIRAMATSU , Toshihiro UCHIDA
IPC分类号： H02K15/03 , H02K1/18 , H01F13/00
摘要： An apparatus for manufacturing a rotor includes a magnetizer. The magnetizer is configured to magnetize a permanent magnet in a rotor from outside the rotor. The rotor includes a rotor core having a magnet insertion hole. The permanent magnet is provided in an embedded state in the magnet insertion hole and has a bent-back shape protruding radially inward. The magnetizer includes a first yoke portion, a second yoke portion, and a magnetization coil. The first yoke portion has an opposing portion facing an outer peripheral surface of the rotor. The second yoke portion forms a magnetic path together with the first yoke portion. The magnetization coil is disposed on the magnetic path of the first and second yoke portions. The magnetizer magnetizes the permanent magnet by energizing the magnetization coil to apply a magnetizing magnetic flux at least through the rotor between the first yoke portion and the second yoke portion, which are located opposed to each other in a radial direction of the rotor.

12. 发明授权

US11557948B2 Radial-gap-type rotary electric machine, production method for radial-gap-type rotary electric machine, production device for rotary electric machine teeth piece, and production method for rotary electric machine teeth member 有权
公开(公告)号：US11557948B2
公开(公告)日：2023-01-17
申请号：US16650976
申请日：2018-09-27
申请人： Hitachi Metals, Ltd.
发明人： Yuji Enomoto
IPC分类号： H02K16/02 , H02K1/27 , H02K1/14 , H02K1/276 , H02K1/278 , H02K1/2786 , H02K3/52 , H02K15/02 , H02K15/03
摘要： A radial-gap-type rotary electric machine, a production method therefore, a production device for a rotary electric machine teeth piece, and a production method therefore can achieve a high efficiency and have excellent productivity. A radial-gap-type rotary electric machine includes a rotation shaft, a rotator including an inner-peripheral-side rotator iron core rotatable around the rotation shaft and an outer-peripheral-side rotator iron core arranged on an outer peripheral side of the inner-peripheral-side rotator iron core and rotatable around the rotation shaft, and a stator disposed between the inner-peripheral-side rotator iron core and the outer-peripheral-side rotator iron core. A permanent magnet is provided on at least one of an outer-peripheral-side surface of the inner-peripheral-side rotator iron core and an inner-peripheral-side surface of the outer-peripheral-side rotator iron core. The stator includes a stator iron core including teeth formed of laminated bodies where amorphous metal foil strip pieces are held with mutual friction.

13. 发明授权

US11532961B2 Pole lobed rotor core 有权
公开(公告)号：US11532961B2
公开(公告)日：2022-12-20
申请号：US16577572
申请日：2019-09-20
申请人： Steering Solutions IP Holding Corporation , Continental Automotive Systems, Inc.
发明人： Christopher J. Sommer
IPC分类号： H02K1/2786 , H02K15/03
摘要： A number of illustrative variations may include a rotor core for an electric motor comprising permanent magnets wherein the rotor core comprises lobes of the core material that magnets may be attached to.

14. 发明授权

US11532960B2 Device for manufacturing rotor core, method for manufacturing rotor core, and rotor structure 有权
公开(公告)号：US11532960B2
公开(公告)日：2022-12-20
申请号：US16780493
申请日：2020-02-03
申请人： FANUC CORPORATION
发明人： SeungJun Lee , Hidetoshi Uematsu , Makoto Funakubo
IPC分类号： H02K1/276 , H02K15/12 , H02K15/03
摘要： Provided is a device for manufacturing a rotor core with less magnetic flux leakage, a method for manufacturing the rotor core, and a rotor structure. Included are a first mold including a fitting recess that fits and holds a laminated iron core in which a magnet is inserted into a magnet insertion hole; a second mold that clamps and seals the laminated iron core together with the first mold; a resin injection unit that is provided to the second mold and injects a resin material in the magnet insertion hole by using a molding machine; and a protrusion that is inserted into the magnet insertion hole by a predetermined insertion amount, and positions and holds the magnet by an end of the magnet being brought into contact with the protrusion, in a state of the first mold and the second mold being clamped.

15. 发明授权

US11532959B2 Electric submersible pump motor stabilized by electromagnetics 有权
公开(公告)号：US11532959B2
公开(公告)日：2022-12-20
申请号：US17447031
申请日：2021-09-07
申请人： ElectromagnetiX LLC
发明人： Christopher Martin Middleton
IPC分类号： H02K1/18 , E21B43/12 , H02K15/02 , H02K3/48 , H02K1/16 , F04D13/08 , H02K1/272 , H02K7/14 , H02K15/03
摘要： An electric submersible pump (ESP) that has a motor section for driving the ESP. The motor section has a stator has an inner surface, winding channels disposed axially therein and windings disposed in the winding channels to generate an electromagnetic field when power is supplied to the ESP. The motor section also has a rotor rotatably disposed in the stator. The rotor has permanent magnets or induction windings disposed therein that are responsive to the electromagnetic field to facilitate rotation of the rotor relative to the stator. The motor section also includes a manipulated air gap disposed between the rotor and the stator that the electromagnetic field crosses. The manipulated air gap provides a desired constant radially directed load on the rotor to stabilize the rotor when instability of the motor section occurs. A method of designing and constructing the ESP disclosed herein. To design and construct the ESP, a desired constant radially directed load is determined for an electric submersible pump (ESP) to stabilize the ESP when instability of an electromagnetic field of the ESP occurs. The air gap is manipulated to achieve the desired constant radially directed load or the design of a stator of the ESP is manipulated to achieve the desired constant radially directed load. The ESP can then be constructed.

16. 发明申请

US20220393534A1 MOTOR ROTOR WITH SLEEVE FOR RETENTION OF MAGNET RING 有权
公开(公告)号：US20220393534A1
公开(公告)日：2022-12-08
申请号：US17832315
申请日：2022-06-03
申请人： Black & Decker Inc.
发明人： Changxing LU , Abraham SANCHEZ , Tong ZHENG , Fulong LIU , Yeli GU , David J. SMITH , Shailesh P. WAIKAR
IPC分类号： H02K1/30 , H02K1/2733 , H02K15/03 , H02K7/14 , H02K29/00
摘要： A brushless direct-current (BLDC) motor is provided. The motor includes a stator including a stator core, stator teeth, and windings; a rotor shaft disposed within the stator and extending along a longitudinal axis; and a rotor. The rotor includes a rotor core having a cylindrical body, a permanent magnet ring mounted on an outer surface of the cylindrical body with no intermediate adhesive therebetween, and metal sleeve securely fitted outside the permanent magnet ring. The metal sleeve includes a flange extending radially inwardly that covers an axial end of the permanent magnet ring and is bonded to the rotor core to secure the permanent magnet ring to the rotor core.

17. 发明申请

US20220385153A1 ROTOR MANUFACTURING DEVICE 有权
公开(公告)号：US20220385153A1
公开(公告)日：2022-12-01
申请号：US17661825
申请日：2022-05-03
申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA
发明人： Masayuki AKAISHI
IPC分类号： H02K15/03
摘要： A guide device which is a rotor manufacturing device includes a pair of sheet guides and a holder. The holder is disposed between the pair of sheet guides and includes a magnet outlet through which a permanent magnet is inserted into the slot from above. The pair of sheet guides is linearly symmetrical in a front view in which a side of the pair of sheet guides is located at the front. The axis of symmetry of the pair of sheet guides and the center axis of the magnet outlet are aligned with each other in the front view.

18. 发明申请

US20220352794A1 JOINING TOOL FOR PRESSING A DISK TO A SHAFT, AND ROTOR SHAFT FOR AN ELECTRIC MACHINE 有权
公开(公告)号：US20220352794A1
公开(公告)日：2022-11-03
申请号：US17690567
申请日：2022-03-09
申请人： Dr. Ing. h.c. F. Porsche Aktiengesellschaft
发明人： Peter Wurster , Niklas Lamparsky
IPC分类号： H02K15/03 , H02K1/278 , B23P19/02
摘要： A joining tool (10) is provided for pressing a disk (12) to a shaft (14) that has opposite first and second ends. The first end (18) of the shaft (14) is received in a press table (22) and the second end (24) of the shaft (14) is received in a centering receptacle (26). A press plate (34) axially presses the disk (12) onto the shaft (14). A resilient ram (40) is provided on a side of the press plate (34) that faces toward the disk (12) and compensates for an axial run-out of the disk (12) relative to the press plate (34). The resilient ram (40) of the joining tool (10) enables the disk (12) that has an axial run-out to be pressed onto the shaft (14) in a correspondingly sloped manner, with the result that a rotor shaft (16) with a satisfactory bond is made possible.

19. 发明授权

US11451122B2 Method for manufacturing laminated iron core product 有权
公开(公告)号：US11451122B2
公开(公告)日：2022-09-20
申请号：US16674430
申请日：2019-11-05
申请人： MITSUI HIGH-TEC, INC.
发明人： Jin Oda , Akinori Mizuno , Yuichi Shiraishi
IPC分类号： H02K15/02 , H02K15/03 , H02K1/276 , H02K1/28 , H02K15/12
摘要： A method for manufacturing a laminated iron core product includes laminating a plurality of iron core members which are punched from a first metal plate to form a laminate, removing oil adhering to the laminate, removing oil adhering to an end surface plate which is punched from a second metal plate, and disposing the end surface plate on an end surface of the laminate and welding the end surface plate and the laminate.

20. 发明授权

US11411472B2 Motor positional sensing 有权
公开(公告)号：US11411472B2
公开(公告)日：2022-08-09
申请号：US17150348
申请日：2021-01-15
申请人： SZ DJI OSMO TECHNOLOGY CO., LTD.
发明人： Zihan Chen
IPC分类号： H02K11/215 , H02K29/08 , H02K29/06 , H02P6/16 , G01D5/14 , H02K1/2786 , H02K21/14 , H02K1/14 , H02K15/03 , H02K5/10
摘要： An unmanned aerial vehicle (UAV) includes a UAV body, and a stabilizing platform mounted on the UAV body and configured to stabilize a payload device. The stabilizing platform includes a frame assembly adapted to hold the payload device and a brushless motor coupled to the frame assembly. The brushless motor is configured to directly drive the frame assembly in response to one or more motor signals to allow the payload device to rotate around at least one of a pitch axis, a roll axis, or a yaw axis of the payload device. A brushless motor includes a rotor housing; a stator disposed within the rotor housing; and a linear Hall effect sensor. A posture of the payload device is controlled by adjusting a rotational angle of the brushless motor, and the rotational angle of the brushless motor is determined using the linear Hall effect sensor.

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