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公开(公告)号：US20240162768A1
公开(公告)日：2024-05-16
申请号：US18509809
申请日：2023-11-15
Applicant: Splash Pool & Spa, Inc.
Inventor： Huaiping Wang , Hongliang Yang , Haidong Ye , Wenfeng Ge
IPC: H02K1/2706
CPC classification number: H02K1/2706 , H02K2201/06 , H02K2201/15
Abstract: A motor rotor structure includes a rotor irone core composed of a rotor section. The circumference of the rotor section is uniformly distributed with magnetic tile grooves. The magnetic tile grooves are located near the axis of the rotor section, and there are two limit edges that contract towards the axis of the rotor section. The two limit edges are connected to two convex edges extending towards the periphery of the rotor section. Between the two convex edges, there are limit protrusions that protrude towards the periphery of the rotor section. A limiting protrusion enables the permanent magnet to be stably placed in the magnetic tile groove, limiting its displacement during rotation and maintains the stability of the motor.
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公开(公告)号：US20240154479A1
公开(公告)日：2024-05-09
申请号：US16955882
申请日：2018-12-20
Inventor： Saliba OK , Kevin KOCH
CPC classification number: H02K1/278 , B62D5/0421 , H02K1/30 , H02K7/1166 , H02K2201/06
Abstract: A rotor of an electric motor, in particular for a power steering system, including a rotor shaft, which is directed in an axial direction, and a number of rotor cores, which are arranged coaxial to each other along the rotor shaft, and an intermediate ring arranged between two rotor cores arranged adjacent to each other in the axial direction, which intermediate ring holds the adjacent rotor cores interlockingly in a crossed orientation relative to each other.
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公开(公告)号：US20240146149A1
公开(公告)日：2024-05-02
申请号：US18384694
申请日：2023-10-27
Applicant: Lex Submersible Pumps FZE Company
Inventor： Anton Shakirov , VITALY KOROPETSKIY , YAROSLAV ALEKSEEV , ANTON SHKOLNYI , ZELIM AGNAEV , EVGENY NIKONOV
CPC classification number: E21B43/127 , H02K1/278 , H02K7/116 , H02K21/14 , H02K2201/06
Abstract: The engine with the direct drive of the gearbox of the sucker road pump includes a stator with a magnetic circuit, a winding and an input box, a rotor with magnetic circuit cores and permanent magnets, a front shield, and a back cover. The motor is not equipped with its own bearings. In this case, the stator is mounted directly on the gearbox instead of the input shaft bearing cover, and the rotor is mounted directly on the gearbox input shaft shank. The radial working gap between the stator and the motor's rotor is larger than the potential eccentricity of the gearbox input shaft relative to its housing. An axial bevel of permanent magnets and cores is made in the motor rotor. The motor stator winding, and the input box provide the possibility of connecting the phases in series or parallel.
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公开(公告)号：US20230361660A1
公开(公告)日：2023-11-09
申请号：US18247003
申请日：2021-09-21
Applicant: VALEO EAUTOMOTIVE GERMANY GmbH
Inventor： Regina BACH , Sebastian BEETZ , Boris DOTZ , Christian FINGER-ALBERT , Carsten SIEPKER , Sebastian WAIDER
IPC: H02K15/02 , H02K15/00 , H02K15/085 , H02K3/34
CPC classification number: H02K15/024 , H02K15/0025 , H02K15/085 , H02K3/345 , H02K2213/03 , H02K2201/06
Abstract: A method for producing a skewed stator having a stator winding composed of shaped conductors includes providing a stator core including a plurality of slots extending from a first end-face to an opposing second end-face and have a skew in the circumferential direction. An arrangement is provided having at least one shaped conductor having two straight leg portions oriented parallel to one another and connected by a connecting portion. Also included is inserting the arrangement into the stator core with the skewed slots at the first end-face by relative movement in the axial direction between the stator core and the arrangement, so that the leg portions of the at least one shaped conductor are bent as a result of the relative movement in such a way that the shape of the leg portions inserted into the stator core acquires a skew which corresponds to the skew of the slots.
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公开(公告)号：US11784520B2
公开(公告)日：2023-10-10
申请号：US17478200
申请日：2021-09-17
Applicant: SANYO DENKI CO., LTD.
Inventor： Manabu Horiuchi , Keisuke Nagata
CPC classification number: H02K1/2766 , H02K29/03 , H02K2201/06 , H02K2201/09
Abstract: A rotor structure of a synchronous motor includes: a stator; and a rotatable rotor on the inner side of the stator, in which the rotor includes: a rotor core fixed to a rotary shaft; and a permanent magnet on the outer side of the rotor core, the permanent magnet on the outer side of the rotor core includes a main magnet and an auxiliary magnet, the auxiliary magnet is provided in contact with the outer side of the rotor core, and the main magnet is provided in contact with the outer side of the auxiliary magnet.
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Patent Agency Ranking
公开(公告)号：US20230246528A1
公开(公告)日：2023-08-03
申请号：US18002639
申请日：2021-06-11
Applicant: VALEO EAUTOMOTIVE GERMANY GmbH
Inventor： Regina BACH , Sebastian BEETZ , Boris DOTZ , Christian FINGER-ALBERT , Carsten SIEPKER , Sebastian WAIDER
CPC classification number: H02K15/024 , H02K15/0031 , H02K15/0421 , H02K15/0012 , H02K2201/06
Abstract: A method for producing a skewed stator having a stator winding made from segmented conductors includes providing a stator core having a large number of axially layered stator core elements which form a plurality of slots extending from one end-face of the stator core to an opposite end-face, and which extend parallel in an axial direction. A large number of segmented conductors are provided which each have two leg portions extending parallel to each other and a connection portion electrically connecting the leg portions. The leg portions are introduced into the slots, and the stator core elements are rotated in a circumferential direction so they are displaced relative to each other in a circumferential direction and the slots form an inclination in a circumferential direction. The leg portions are bent by the rotation have an inclination corresponding to the slots. The stator core elements are fixed relative to each other.
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公开(公告)号：US20190115796A1
公开(公告)日：2019-04-18
申请号：US16213462
申请日：2018-12-07
Applicant: Hitachi Automotive Systems, Ltd.
Inventor： Yasuyuki SAITO , Tsuyoshi GOTO , Kenichi NAKAYAMA , Noriaki HINO , Shinji SUGIMOTO
CPC classification number: H02K1/276 , B60K1/02 , B60K6/26 , B60K6/445 , B60L15/007 , B60L15/025 , B60L15/20 , B60L50/16 , B60L50/61 , B60L2210/10 , B60L2210/40 , B60L2220/14 , B60L2240/421 , B60L2240/423 , B60L2240/429 , B60L2240/443 , B60L2240/547 , B60L2240/549 , B60L2270/142 , B60L2270/145 , H02K1/24 , H02K1/2766 , H02K7/006 , H02K29/03 , H02K2201/06 , H02P27/06 , Y02T10/6217 , Y02T10/6239 , Y02T10/641 , Y02T10/643 , Y02T10/7077 , Y02T10/7216 , Y02T10/7241 , Y02T10/7275
Abstract: A rotating electric machine includes a stator having a stator coil and a rotor provided rotatably around a specific rotation axis with respect to the stator. The rotor includes a plurality of magnets, a plurality of magnetically-assisted salient pole members provided between poles of any adjacent two magnets from among the plurality of magnets, and a magnetoresistance variation unit provided in the magnetically-assisted salient pole member along an axial direction of the rotation axis at a position offset in a circumferential direction of the rotation axis from a q-axis passing through a salient pole center of the magnetically-assisted salient pole member. The amount of offset of the magnetoresistance variation unit from the q-axis varies depending on positions of the magnetically-assisted salient pole members so that torque fluctuations cancel each other when power is applied.
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公开(公告)号：US20180309330A1
公开(公告)日：2018-10-25
申请号：US15770245
申请日：2016-11-22
Applicant: Nidec Corporation
Inventor： Tomoya UEDA , Hiroshi KITAGAKI , Takeshi HONDA
CPC classification number: H02K1/146 , H02K1/148 , H02K1/278 , H02K15/022 , H02K29/03 , H02K2201/06 , H02K2213/03
Abstract: A motor includes a rotor that rotates centered on a central axis extending in an axial direction, and a stator. The stator includes a stator iron core in which a plurality of laminated iron cores each including a tooth portion extending in a radial direction are arranged in a circumferential direction, and coils wound around the tooth portion. The laminated iron core includes a plurality of flat plate-shaped iron core pieces laminated in a plate thickness direction. The iron core piece is made of a non-oriented electromagnetic steel plate. A rolling direction of the iron core piece is inclined with respect to the radial direction. The laminated iron core is preferably formed by laminating the iron core pieces to be arranged with a same inclination. At least a pair of the laminated iron cores adjacent to each other in the circumferential direction has inclinations opposite to each other.
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公开(公告)号：US20180278132A1
公开(公告)日：2018-09-27
申请号：US15762186
申请日：2015-10-20
Applicant: Mitsubishi Electric Corporation
Inventor： Yusuke MAESHIMA , Yasumasa TAKEUCHI , Yuki OHASHI
CPC classification number: H02K15/03 , H02K11/215 , H02K15/16 , H02K29/08 , H02K2201/06 , H02K2211/03 , H02K2213/03
Abstract: A method and an apparatus for manufacturing a rotor of an electric motor are provided to obtain an electric motor with high efficiency. To this end, a rotor is magnetized by using a magnetizing device. The rotor includes a rotor magnet disposed in the circumferential direction of a rotor shaft, and a position detecting magnet disposed side-by-side with the rotor magnet with respect to the axial direction of the rotor shaft. The magnetizing device includes a rotor-magnet magnetizing yoke and a position-detecting-magnet magnetizing yoke that generate two magnetic fields. The two magnetic fields each have unlike poles arranged alternately in the circumferential direction and have a phase difference relative to each other in the circumferential direction. A phase difference is thus provided between the poles of the rotor magnet and the poles of the position detecting magnet.
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公开(公告)号：US20180269732A1
公开(公告)日：2018-09-20
申请号：US15612654
申请日：2017-06-02
Applicant: LG ELECTRONICS INC.
Inventor： Wonyong LEE , Jeonghwan KIM , Soohyun PARK , Jihyun AHN , Injae LEE
CPC classification number: H02K1/276 , H02K2201/06 , H02K2213/03
Abstract: An interior permanent magnet type rotor includes: a rotor core having a plurality of slots formed therein, the plurality of slots having a symmetric longitudinal sectional shape; and a plurality of permanent magnets respectively inserted into the plurality of slots, the plurality of permanent magnets having an asymmetric longitudinal sectional shape, wherein each of the plurality of permanent magnets includes: a top surface part; a bottom surface part formed opposite to the top surface part; and first and second side surface parts connecting the top surface part and the bottom surface part, wherein a first vertical part and a second vertical part, which are in contact with side surface parts of the slot, are formed in the first and second side surface parts, respectively.
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