Molded Plastic Patents (Class 310/43)
  • Patent number: 10811925
    Abstract: The present invention relates to a stator system for an electric motor with an internal rotor. The stator system includes a stator winding and a metal external return path radially enclosing the stator winding. The external return path is surrounded by a retaining structure that holds the stator system together. The retaining structure can be injected to the external return path with plastic in the form of a cage, so that the external return path is not covered by the retaining structure in some regions but is exposed.
    Type: Grant
    Filed: August 23, 2016
    Date of Patent: October 20, 2020
    Assignee: LAKEVIEW INNOVATION LTD.
    Inventors: Tobias Hänni, Remo Schelling, Jürgen Mayer
  • Patent number: 10811923
    Abstract: Drive arrangement (1) comprising an electrical machine (2) having at least one winding (3) which has at least one winding end (4), and comprising a control unit (5), wherein the control unit (5) has a housing (6) with at least one contact-making receiving opening (7), wherein the electrical machine (2) and the control unit (5) can be mechanically connected, and wherein at least one winding end (4) of the winding (3) of the electrical machine (2) can be guided into the contact-making receiving opening (7) and can be clamped in the contact-making receiving opening (7) by means of a displaceable sliding part (5) and/or a deformable bending part (9), so that electrical contact can be established between the electrical machine (2) and the control unit (5).
    Type: Grant
    Filed: March 23, 2017
    Date of Patent: October 20, 2020
    Assignee: HANON SYSTEMS EFP DEUTSCHLAND GMBH
    Inventors: Dennis Christian Knospe, Gerd Schlager, Daniel Schleicher, Christoph Sigmund
  • Patent number: 10770938
    Abstract: An electronically commutated electric motor is disclosed with a stator, a rotor rotatably mounted relative to the stator, and at least one sensor for scanning a magnetic field that co-rotates with the rotor, where the stator includes a stator winding and a magnetically soft stator core, where the rotor includes several permanent magnets arranged distributed in the circumferential direction of the rotor as well as a first magnetically soft rotor core for the permanent magnets, and where the permanent magnets, together with the first magnetically soft rotor core, generate a rotor magnetic field which, for operating the electric motor, interacts with the stator magnetic field of the stator generated by the stator winding and the stator core. A second magnetically soft rotor core adjoins the first magnetically soft rotor core in the axial direction of the rotor.
    Type: Grant
    Filed: August 17, 2017
    Date of Patent: September 8, 2020
    Assignee: LAKEVIEW INNOVATION LTD.
    Inventor: Stefan Imfeld
  • Patent number: 10763714
    Abstract: A motor may include a rotor including a shaft; a stator; and a bearing supporting the shaft. The rotor may include a plurality of core pieces on an outer side of the shaft, a plurality of permanent magnets, a mold resin part between the core pieces, and an interposed part in contact with a surface on one side in a circumferential direction of each of the core pieces. The neighboring core pieces may include a magnet insertion hole provided therebetween. The permanent magnet may include two poles, with poles of neighboring magnets facing each other having identical polarity. Each of the permanent magnets is in indirect contact with the core piece positioned on the other side in the circumferential direction of the magnet insertion hole via the interposed part.
    Type: Grant
    Filed: April 4, 2018
    Date of Patent: September 1, 2020
    Assignee: NIDEC CORPORATION
    Inventors: Tatsuro Kawamoto, Takayuki Migita, Takao Atarashi, Yasuaki Nakahara
  • Patent number: 10756591
    Abstract: Provided is a motor including a shaft; two rotors attached to the shaft and spaced from each other in an axial direction by a predetermined distance; a stator arranged between the two rotors; a busbar unit arranged on one axial side of at least one of the two rotors, and arranged to hold a busbar; and a housing arranged to hold the stator and house the two rotors therein. The stator includes a plurality of cores arranged in a circumferential direction, and coils wound around the cores. A lead wire drawn out from the coils is arranged to extend, radially outside of the one of the rotors, from the corresponding core to a position on the one axial side of the one of the rotors, and is connected to the busbar at the position. The busbar unit is housed in the housing.
    Type: Grant
    Filed: July 11, 2019
    Date of Patent: August 25, 2020
    Assignees: NIDEC CORPORATION, NIDEC TAIWAN CORPORATION
    Inventors: Yusuke Makino, Yoshiki Kawai, Keisuke Morita, Guo Jhih Yan, Hsiu Ying Lin
  • Patent number: 10749392
    Abstract: A motor rotor includes: a shaft; a smaller-radius iron core fixedly attached to an outer peripheral surface of the shaft; a larger-radius iron core disposed spaced apart from the smaller-radius iron core in a radial direction perpendicular to an axis of the shaft, which is formed in a ring shape in cross section by a combination of a plurality of iron core blocks, and disposed to share a common axis with the smaller-radius iron core; and an insulating resin portion used to fix the smaller-radius iron core and the larger-radius iron core. The larger-radius iron core and the smaller-radius iron core are formed of their respective different materials. The material forming the larger-radius iron core has an iron loss less than an iron loss of the material forming the smaller-radius iron core.
    Type: Grant
    Filed: August 5, 2015
    Date of Patent: August 18, 2020
    Assignee: Mitsubishi Electric Corporation
    Inventors: Kazuhiko Baba, Koji Yabe, Hiroshi Yamanaka, Hironori Yabuuchi
  • Patent number: 10745094
    Abstract: Provided is a propeller for a submersible, comprising a housing (1) having a cylindrical structure with two open ends, a stator sleeve (2) having a cylindrical structure with one open end, the stator sleeve suspended in an internal cavity of the housing (1), a motor stator (3) fixed inside the stator sleeve (2), a rotor sleeve (4) having a cylindrical structure with one open end and disposed on the stator sleeve (2), a motor rotor (5) fixed to an inner wall of the rotor sleeve (4), and a propeller (6) fixed to an outer wall of the rotor sleeve (4). The propeller (6) of the underwater propeller is directly fixed to the rotor sleeve (4) so that the structure of the motor is compact, and the rotational shaft transmission is not required so that the length of the propeller is shortened and the volume is reduced.
    Type: Grant
    Filed: April 17, 2018
    Date of Patent: August 18, 2020
    Assignee: TIANJIN DEEPFAIR OCEAN TECHNOLOGY CO., LTD.
    Inventor: Jiancang Wei
  • Patent number: 10749404
    Abstract: A vehicle electric machine assembly including a stator core and a terminal block is provided. The stator core includes one or more three-phase terminals connected to end windings. The terminal block includes a connector for each of the three-phase terminals. A portion of the end windings extending from the stator core, the three-phase terminals, and the terminal block are overmolded as a single unit such that a portion of each of the connectors is exposed for connection to an inverter. The terminal block may further include one or more threaded apertures, each sized to receive a threaded stud to facilitate an electrical connection between one of the one or more three-phase terminals and the inverter. Each of the one or more three-phase terminals may extend axially along an axis substantially parallel to a central axis of a rotor disposed within a cavity defined by the stator core.
    Type: Grant
    Filed: January 12, 2018
    Date of Patent: August 18, 2020
    Assignee: Ford Global Technologies, LLC
    Inventors: Michael W. Degner, Prasad Dev Hanumalagutti, Franco Leonardi
  • Patent number: 10734861
    Abstract: The purpose of the invention is to provide a motor in which it is possible to efficiently construct a structure wherein a terminal part of a motor body is covered by a terminal cover. This terminal cover (7) is a resin molded article integrally including a first member (8) fixed to a motor body (40), a second member (9) that covers the first member (8), and a hinge part (70). Thus, the first member (8) and the second member (9) can be engaged with one another by first fixing the first member (8) to the motor body (40), and then rotating the second member (9) at the hinge part (70) and covering the first member (8) with the second member (9). Thus, the number of components can be reduced compared to cases where the first member (8) and the second member (9) are constructed as separate members, and the task of attaching the second member (9) to the first member (8) can be performed efficiently.
    Type: Grant
    Filed: October 31, 2016
    Date of Patent: August 4, 2020
    Assignees: DENSO CORPORATION, NIDEC SANKYO CORPORATION
    Inventor: Mamoru Yamaoka
  • Patent number: 10707709
    Abstract: A rotor includes a rotor core that is formed by stacking a plurality of steel plates each of which has an opening; a magnet that is inserted in a magnet hole formed by disposing the openings such that the openings overlap each other; and a magnetic plate that is disposed between an inner wall defining the magnet hole and the magnet so as to prevent contact between the inner wall defining the magnet hole and the magnet. At least a contact portion of the magnetic plate is subjected to an insulating process, the contact portion of the magnetic plate contacting the magnet.
    Type: Grant
    Filed: December 4, 2018
    Date of Patent: July 7, 2020
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Hiroyuki Hattori, Ken Noda
  • Patent number: 10707722
    Abstract: A protection arrangement of an electric machine which includes a plurality of solid elements layered one after another between a terminal box and a stator of the electric machine. Each of the solid elements includes a cable hole, and the cable holes are arranged to at least partially overlap with each other in order to have a cable channel of the successive cable holes through the solid elements. At least a part of the solid elements are adjustable in a radial direction of the cable channel for making a diameter of the cable channel equal to or smaller than a diameter of the electric cable input in the cable channel in response to adjustment in the radial direction. The protection arrangement comprises a locking mechanism which immobilizes the at least part of solid elements.
    Type: Grant
    Filed: November 11, 2019
    Date of Patent: July 7, 2020
    Assignee: ABB Schweiz AG
    Inventors: Jouni Ikäheimo, Tero Känsäkangas
  • Patent number: 10707712
    Abstract: A rotor in a rotating electric machine including a rotor main body and at least one magnet unit provided at an outer circumferential part of the rotor main body. The magnet unit has a plurality of magnet teeth as segments in the circumferential direction. The plurality of magnet teeth that form one magnet unit are arranged in a circular arc shape. At least one pair of magnet teeth in one magnet unit is each provided with a notch. With the plurality of magnet teeth being arranged in the circular arc shape, a fixation block is press-fitted in the pair of notches. The fixation block is fastened to the rotor main body while being inserted in the notches.
    Type: Grant
    Filed: November 27, 2015
    Date of Patent: July 7, 2020
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Takashi Umeda, Hiroki Kitani, Junka Okamoto
  • Patent number: 10668943
    Abstract: A heat radiation base body extending in a direction of a rotation shaft of an electric motor close to the rotation shaft is provided at an end surface of a motor housing accommodating the electric motor. A board of one electronic control unit of a redundant system is fixed to the heat radiation base body along the direction in which heat radiation base body extends with thermal conduction allowed. A board of the other electronic control unit of redundant system is fixed to the heat radiation base body along a direction in which the heat radiation base body extends, so as to face the board of one electronic control unit, with thermal conduction allowed. A cover covering these is fixed to an end surface of the motor housing without a bolt. Thus, a housing accommodating the electronic control unit is not necessary. A sealing part is only the connecting portion between the motor housing and cover, thereby eliminating additional structure of the sealing part, sealing component required for seal and bolt.
    Type: Grant
    Filed: February 16, 2017
    Date of Patent: June 2, 2020
    Assignee: Hitachi Automotive Systems, Ltd.
    Inventor: Masao Fujimoto
  • Patent number: 10668944
    Abstract: An electric drive device has a motor housing accommodating an electric motor, a heat radiation base body fixed to an end surface, which is opposite side to an output shaft portion of a motor rotation shaft, of the motor housing and extending in a rotation shaft direction that is opposite side to output shaft portion, one electronic control unit of redundant system, arranged along direction in which heat radiation base body extends and having board, fixed to the heat radiation base body with thermal conduction to heat the radiation base body allowed, and the other electronic control unit of redundant system, arranged along direction in which the heat radiation base body extends and having a board, fixed to the heat radiation base body with thermal conduction to heat radiation base body allowed. Boards of both electronic control units are fixed to the heat radiation base body with boards slanting with respect to an extension direction of the heat radiation base body.
    Type: Grant
    Filed: February 16, 2017
    Date of Patent: June 2, 2020
    Assignee: Hitachi Automotive Systems, Ltd.
    Inventors: Masao Fujimoto, Keiji Hamada
  • Patent number: 10662570
    Abstract: A laundry treatment apparatus and a magnetic gear apparatus are disclosed. The laundry treatment apparatus includes a cabinet (100) defining the appearance of the laundry treatment apparatus, a drum (300) rotatably disposed in the cabinet (100) to contain laundry, and a power unit (600) for rotating the drum (300), wherein the power unit (600) includes a rotating magnetic field generator (680) securely provided in the cabinet (100) to generate rotating magnetic fields, an input magnetic gear part (670) rotatably disposed radially outside the rotating magnetic field generator (680) and including at least one permanent magnet to transfer rotating magnetic fields, a magnetic path formation part (640) disposed radially outside the input magnetic gear, and an output magnetic gear part (620) disposed radially outside the magnetic path formation part (640) and including at least one permanent magnet therein.
    Type: Grant
    Filed: September 25, 2015
    Date of Patent: May 26, 2020
    Assignee: LG Electronics Inc.
    Inventor: Ikuma Fukui
  • Patent number: 10666110
    Abstract: A bus bar unit includes: a plurality of bus bars which electrically connect coils of respective phases of a rotating electric machine and an external power source to each other, and integrally form external connection terminals; and a bus bar integral holding portion which covers parts of the plurality of bus bars and electrically insulates the plurality of bus bars to each other. Each bus bars is equal in thickness from the external connection terminal to a bus bar joining portion joined to a coil joining portion of each phase, and a width of the bus bar joining portion is wider than that of the coil joining portion.
    Type: Grant
    Filed: December 10, 2018
    Date of Patent: May 26, 2020
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Yuta Ito, Hidetomo Fujiwara, Takuya Yoshizawa
  • Patent number: 10651705
    Abstract: Provided is a motor in which the positional misalignment of a terminal cover provided to a motor body can be suppressed. In a terminal cover (7) fixed to a motor body (40), an engagement plate part (75) extends from a cover part (71), which covers a terminal part (25) on a lateral surface of the motor body (40), to a position overlapping an end surface (12) on a counter-output side (L2) of the motor body (40). The engagement plate part (75) is provided with an engagement recess (750) in which a projection (17) on the end surface (12) on the counter-output side (L2) of the motor body (40) is fitted. Thus, even when external force is applied to the terminal cover (7), the terminal cover (7) is less likely to be subjected to positional misalignment. The engagement recess (750) is groove shaped, and the projection (17) is fitted to an end part, in the extending direction, of the engagement recess (750) formed in a groove shape.
    Type: Grant
    Filed: October 31, 2016
    Date of Patent: May 12, 2020
    Assignees: DENSO CORPORATION, NIDEC SANKYO CORPORATION
    Inventor: Mamoru Yamaoka
  • Patent number: 10637318
    Abstract: An active part of an electrical machine, such as a rotor or a stator, an electrical machine having the active part, which has a main body and a winding that is surrounded by an encapsulation compound, where the encapsulation compound has at least three regions, where the winding extends through the main body in a slot in a first region, where the winding surrounded by the encapsulation compound projects out of the main body at least in a third region, and which has at least a second region arranged between the first region and the third region in the active part, where the encapsulation compound has a different composition in the second region than in the first region or the third region.
    Type: Grant
    Filed: September 17, 2015
    Date of Patent: April 28, 2020
    Assignee: Siemens Aktiengesellschaft
    Inventors: Andre Gruebel, Dieter Schirm
  • Patent number: 10622855
    Abstract: A rotor includes permanent magnets, an annular outer periphery side iron core (first core) disposed on the inner diameter side of the permanent magnets, an annular inner periphery side iron core (second core) disposed on the inner diameter side of the first core, and an insulating member insulating the first core and the second core from each other. The first core includes positioning convex portions protruding from the outer periphery toward the outer diameter side, formed in the circumferential direction and positioning the permanent magnets, and outer periphery side rotation locking concave portions being concave from the inner periphery toward the outer diameter side and formed in the circumferential direction. The positioning convex portions and the outer periphery side rotation locking concave portions are formed in positions overlapping each other when viewed in the radial direction from the central axis of the second core.
    Type: Grant
    Filed: March 22, 2018
    Date of Patent: April 14, 2020
    Assignee: FUJITSU GENERAL LIMITED
    Inventor: Masanori Murakami
  • Patent number: 10608494
    Abstract: A stator unit included in a motor includes a base member, an armature, a circuit board, and a mold resin portion. The base member extends substantially perpendicularly to a vertically extending center axis. The armature and the circuit board are positioned above the base member. The circuit board is electrically connected to the armature. The mold resin portion covers the armature and the circuit board. In a process of forming the mold resin portion, the base member is firstly supported by a first mold.
    Type: Grant
    Filed: December 1, 2017
    Date of Patent: March 31, 2020
    Assignee: NIDEC CORPORATION
    Inventors: Hideki Aoi, Kazuhiro Ono, Jumpei Kitamura, Junya Matsuyama, Sakae Nogami, Megumi Michishita
  • Patent number: 10594181
    Abstract: The present invention relates to a rotor assembly for an electric motor, including: a rotor; a rotary shaft passing through the center of the rotor and coupled to the rotor; and a fastening member fastened to at least one side of the rotary shaft to prevent the rotor from being moved along the rotary shaft, wherein the fastening member includes a body portion having at least a part brought into contact with the rotary shaft; and a flange portion connected to the body portion, part of the flange portion being pressed against the rotor side to prevent the axial movement of the rotor.
    Type: Grant
    Filed: February 22, 2018
    Date of Patent: March 17, 2020
    Assignee: LG Electronics Inc.
    Inventor: Somi Sim
  • Patent number: 10574111
    Abstract: A stator coil has a first layer wound around a tooth portion of a stator core-sequentially from the radially outer side to the radially inner side of a stator, and is wound while a winding direction is reversed for each layer. If the outermost layer is denoted by n (n is an odd number equal to or greater than 3) and the final turn in each layer is denoted by m (m is equal to or greater than 2), the m-th turn in the n-th layer is wound on the radially outer side of the stator, the stator coil on the radially inner side is lane-changed on a shorter-side tooth portion, and a part of the stator coil on the radially outer side in the outermost layer is lane-changed on a longer-side tooth portion.
    Type: Grant
    Filed: October 29, 2015
    Date of Patent: February 25, 2020
    Assignee: Mitsubishi Electric Corporation
    Inventors: Ryuji Kitamura, Shogo Okamoto, Masaya Inoue
  • Patent number: 10530211
    Abstract: An insulator of a coil winding component constituting part of a rotary electric machine is resin molded integrally with a divided iron core. A first accommodating groove in which a coil terminal wire can be arranged is formed on an outer end surface of a wiring member of the insulator. A plurality of recesses are formed in a circumferential direction of a stator core on a groove bottom surface of the first accommodating groove. Further, a rib, which supports the coil terminal wire that is arranged in the first accommodating groove, is disposed between the mutually adjacent recesses.
    Type: Grant
    Filed: March 28, 2018
    Date of Patent: January 7, 2020
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Kenji Kitamura, Tomotsugu Takahashi
  • Patent number: 10530210
    Abstract: To ensure ready assembly of a stator and reliably reduce the shaft voltage in an axial air gap rotating electric machine, an axial air gap rotating electric machine has a circular ring-shaped stator formed by a plurality of stator cores arranged about a rotational axis direction in a ring shape. Each stator core comprises a tubular bobbin and a coil, with the tubular bobbin having an iron core inserted into a bobbin inner tubular portion substantially matching the peripheral shape of the iron core. The axial air gap rotating electric machine has a first conductive member having a horizontal portion and a vertical portion contacting the end surface of the bobbin opening portion. The horizontal portion contacts parts of the iron core outer peripheral surface and the inner peripheral surface of the bobbin inner tubular portion, and the vertical portion is conductively connected to the inner circumferential housing surface.
    Type: Grant
    Filed: April 11, 2014
    Date of Patent: January 7, 2020
    Assignee: Hitachi Industrial Equipment Systems Co., Ltd.
    Inventors: Hirooki Tokoi, Shuuichi Takahashi, Yasuei Yoneoka, Toshifumi Suzuki, Toru Sakai, Katsuyuki Yamazaki, Ryousou Masaki, Norihisa Iwasaki, Yuji Enomoto
  • Patent number: 10523078
    Abstract: A motor includes a stator, a rotor that rotates relatively to the stator, a circuit board, and a holding member that holds the stator and the circuit board. The stator includes a stator core including a core back and teeth, an insulator covering a portion of the stator core, a coil with a coil wire wound around the teeth with the insulator in between, and a coil end portion being an end portion of the coil wire. The circuit board has a second through hole. The holding member has a first through hole disposed on a lower side of the second through hole. The coil end portion passes through the first and second through holes and is electrically connected to the circuit board. A lower portion of the holding member is connected to an upper portion of the insulator, and an upper portion thereof is connected to the circuit board.
    Type: Grant
    Filed: October 24, 2017
    Date of Patent: December 31, 2019
    Assignee: NIDEC CORPORATION
    Inventors: Yuta Yamasaki, Tsukasa Takaoka, Shoki Yamazaki
  • Patent number: 10523081
    Abstract: A power tool is provided including a housing and an electric brushless DC (BLDG) motor housed inside the housing. The motor includes a stator, a rotor pivotably arranged inside the stator, and a motor end cap arranged at an end of the stator. At least one of the motor end cap or the stator includes flexible posts that engage a surface of the other one of the motor end cap or the stator to absorb tolerances associated with the stator and the end cap.
    Type: Grant
    Filed: November 25, 2015
    Date of Patent: December 31, 2019
    Assignee: Black & Decker Inc.
    Inventors: David J. Smith, David E. Gillespie, Merritt J. Tennison
  • Patent number: 10523096
    Abstract: A method for manufacturing a stator assembly for an electrical machine includes printing a stator core. The method also includes printing a first part of a stator winding. In addition, the method includes coupling the first part of the stator winding to the stator core. The method also includes printing a second part of the stator winding onto the first part of the stator winding to form the stator assembly. In particular, coupling the first part of the stator winding to the stator core precedes printing the second part of the stator winding onto the first part of the stator winding.
    Type: Grant
    Filed: August 8, 2017
    Date of Patent: December 31, 2019
    Assignee: GE Aviation Systems LLC
    Inventors: Hao Huang, Xiaochuan Jia, Joshua Tyler Mook
  • Patent number: 10516320
    Abstract: A stator housing has an annular wall including a first end, a second end, an outer surface and an inner surface defining an interior cavity. A stator is arranged within the interior cavity. The stator includes an outer surface portion, a first end turn and a second end turn. A coolant annulus extends about at least a portion of the stator housing. The coolant annulus includes at least one coolant spray passage arranged to direct a spray of coolant at one of the first end turn and the second end turn. A coolant seal and distributor is coupled to the stator housing at the first end sealing against the stator. The coolant seal and distributor includes one or more coolant spray nozzles arranged to direct a spray of coolant onto the other of the first end turn and the second end turn.
    Type: Grant
    Filed: April 18, 2017
    Date of Patent: December 24, 2019
    Assignee: BORGWARNER INC.
    Inventors: Bradley Duane Chamberlin, Sven Norbert Altlay, Jomon Kaniampalackal, Clemens Burger, Timothy Jay Sailors, Jr.
  • Patent number: 10505407
    Abstract: A brushless motor comprising: a rotor; a stator core disposed at a radial direction outside of the rotor, and a stator case. The stator core includes an outer ring shaped section, teeth sections projecting out from the outer ring shaped section toward a radial direction inside, and an inner ring shaped section extending from end portions of the teeth sections. Protruding portions are formed at the outer ring shaped section so as to project toward a radial direction outside and so as to be disposed at even intervals around a circumferential direction of the outer ring shaped section. The stator case is integrated together with the stator core by a plurality of plastic deformation portions formed at an outer peripheral portion of the stator case at locations facing towards the protruding portions, and the plastic deformation portions are disposed at even intervals along a circumferential direction of the stator case.
    Type: Grant
    Filed: February 8, 2017
    Date of Patent: December 10, 2019
    Assignee: DENSO CORPORATION
    Inventors: Yoshinobu Nagao, Satoru Suzuki, Takashi Nagaya, Yoshihiro Adachi, Yukihide Ishino, Yoshitsugu Nakagawa, Masaru Irie, Toshihiro Matsuura
  • Patent number: 10491072
    Abstract: An inner-rotor-type motor is configured such that a projecting portion is formed on an inner circumferential surface of a housing, a recess portion is formed on an outer circumferential surface of a stator, the stator is positioned with respect to the housing by the recess portion and the projecting portion being fitted to each other, the stator is configured by an annular insulator having an attachment surface being brought into close contact with a core end surface at one axial end of a stator core, a sensor substrate is attached to the insulator so as to be capable of detecting a rotation angle of a rotor, the recess portion of the stator is configured by a cutout portion being formed in an area that is a part of an outer circumferential surface of the insulator and includes a portion that is brought into close contact with the core end surface.
    Type: Grant
    Filed: November 11, 2015
    Date of Patent: November 26, 2019
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Kota Kitamura, Hiroyuki Tsubakimoto, Ryohei Oishi
  • Patent number: 10491060
    Abstract: An external rotor motor, including a rotary shaft, a plastic-packaged stator, and an external rotor. The plastic-packaged stator includes a sleeve base, a stator core, a terminal insulator, coil windings, and a plastic-packaged body. The plastic-packaged stator is disposed in the chamber of the external rotor. The terminal insulator is disposed on the end surface of the stator core. The coil windings are coiled on the terminal insulator. The sleeve base is disposed in an axle hole of the stator core. The plastic-packaged body integrates the sleeve base, the stator core, the terminal insulator, and the coil windings. A plastic-packaged end plate is disposed on the plastic-packaged body on one side of the stator core. Bearing housings are disposed on two ends of the sleeve base. The rotary shaft is disposed in the sleeve base, and two ends of the rotary shaft are supported by bearings.
    Type: Grant
    Filed: April 18, 2017
    Date of Patent: November 26, 2019
    Assignee: ZHONGSHAN BROAD-OCEAN MOTOR CO., LTD.
    Inventors: Xiongcheng Wang, Guiwen Fu, Jincheng Zhu, Shikun Chen, Qixiang Xiang, Chaorong Luo
  • Patent number: 10476358
    Abstract: A method for manufacturing an electrical machine includes printing a stator core; printing a first part of a stator winding; coupling the first part of the stator winding to the stator core; printing a second part of the stator winding onto the first part of the stator winding to form a stator assembly; printing a first part of a rotor shaft; printing a rotor core onto the first part of the rotor shaft; printing a second part of the rotor shaft onto the rotor core; printing a first part of a rotor winding; coupling the first part of the rotor winding to the rotor core; and printing a second part of the rotor winding onto the first part of the rotor winding to form a rotor assembly.
    Type: Grant
    Filed: August 8, 2017
    Date of Patent: November 12, 2019
    Assignee: General Electric Company
    Inventors: Hao Huang, Xiaochuan Jia, Joshua Tyler Mook, Victor Bernard Bonneau
  • Patent number: 10468947
    Abstract: A motor according to the present invention includes: a stator core that surrounds an outer circumference of a rotor, and that includes: a yoke portion; and a plurality of tooth portions in which tip portions protrude radially inward toward a central axis of the rotor from an inner circumferential surface of the yoke portion; a heat sink that is disposed so as to face a first end surface of the stator core in an axial direction of the stator core; a stator coil that includes phase coil portions that are configured using conducting wires that are mounted to the stator core; and a coil fixing member that is disposed on coil end portions of the phase coil portions, that fixes the coil end portions in a state of surface contact with the heatsink.
    Type: Grant
    Filed: April 5, 2016
    Date of Patent: November 5, 2019
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Yoshihiro Miyama, Hideaki Arita, Akihiro Daikoku
  • Patent number: 10454325
    Abstract: The present invention ensures reliability while reducing the size of an axial air gap rotating electric machine. An axial air gap rotating electric machine has: a stator comprising a plurality of core members arranged in a ring shape, said core members each having an iron core, a coil wound in an iron core outer periphery direction, and a bobbin disposed between the iron core and the coil; and a rotor plane-facing an end surface of the iron core via an air gap in a rotating shaft radial direction.
    Type: Grant
    Filed: April 21, 2014
    Date of Patent: October 22, 2019
    Assignee: Hitachi Industrial Equipment Systems Co., Ltd.
    Inventors: Shuuichi Takahashi, Hirooki Tokoi, Toru Sakai, Katsuyuki Yamazaki, Toshifumi Suzuki, Jun Sakurai, Tomonori Kawagoe, Daisaku Takahashi
  • Patent number: 10432048
    Abstract: The rotating electric motor includes a stator including a stator coil and a stator core, and a rotor located at an inner peripheral side of the stator core and rotatable relative to the stator. The rotor includes a rotor core provided at an outer periphery of a rotor rotation shaft via a core support portion. The rotor core has a plurality of magnetic poles in which a plurality of sets of permanent magnets are provided along a circumferential direction. The rotor core includes a plurality of rotor core divided bodies that are aligned in an axial direction, concentrically arranged, and shifted in phase from each other by a determined angle. A pair of grooves are provided on an outer peripheral portion of each rotor core divided body to be spaced apart from each other in the circumferential direction with a center of each magnetic pole.
    Type: Grant
    Filed: June 28, 2018
    Date of Patent: October 1, 2019
    Assignee: NTN CORPORATION
    Inventor: Yusuke Makino
  • Patent number: 10424989
    Abstract: A method for manufacturing a housing for an electrical machine includes printing, by a three-dimensional (3D) printing process, the housing. In addition, the method includes printing, by the 3D printing process, a cooling jacket that is integral with the housing. The method also includes printing, by the 3D printing process, at least one end cap configured to enclose a cavity defined by the housing. In addition, the method includes coupling the at least one end cap to the housing.
    Type: Grant
    Filed: August 8, 2017
    Date of Patent: September 24, 2019
    Assignee: General Electric Company
    Inventors: Hao Huang, Xiaochuan Jia, Joshua Tyler Mook
  • Patent number: 10411543
    Abstract: Provided is a motor including a shaft; two rotors attached to the shaft and spaced from each other in an axial direction by a predetermined distance; a stator arranged between the two rotors; a busbar unit arranged on one axial side of at least one of the two rotors, and arranged to hold a busbar; and a housing arranged to hold the stator and house the two rotors therein. The stator includes a plurality of cores arranged in a circumferential direction, and coils wound around the cores. A lead wire drawn out from the coils is arranged to extend, radially outside of the one of the rotors, from the corresponding core to a position on the one axial side of the one of the rotors, and is connected to the busbar at the position. The busbar unit is housed in the housing.
    Type: Grant
    Filed: November 12, 2015
    Date of Patent: September 10, 2019
    Assignees: NIDEC CORPORATION, NIDEC TAIWAN CORPORATION
    Inventors: Yusuke Makino, Yoshiki Kawai, Keisuke Morita, Guo Jhih Yan, Hsiu Ying Lin
  • Patent number: 10404122
    Abstract: A segmental stator, an electric motor have same and a household appliance are provided. The segmental stator includes: a plurality of main windings, a plurality of secondary windings, a plurality of winding needles and a wiring board. Each of the main winding and the secondary winding includes a core segment and a winding frame, and the winding frames of the main winding and secondary winding are wound with a main winding wire and a secondary winding wire respectively. The main windings include at least one first main winding separately wound with one main winding wire and at least two second main windings continuously wound with one main winding wire. The plurality of secondary windings include at least one or more of the following: at least one first secondary winding separately wound with one secondary winding wire and at least two second secondary windings continuously wound with one secondary winding wire.
    Type: Grant
    Filed: June 25, 2015
    Date of Patent: September 3, 2019
    Assignees: GD MIDEA ENVIRONMENT APPLIANCES MFG CO., LTD., MIDEA GROUP CO., LTD.
    Inventors: Yingqing Peng, Zhanfei Han, Jianxiong Li, Zhigang Wang
  • Patent number: 10404141
    Abstract: A drive unit that includes a rotating electric machine, and a controller having a substrate with electronic components mounted on the substrate, and controlling a drive of the rotating electric machine. The drive unit also includes a first terminal electrically connected to the rotating electric machine or to a power supply, and a second terminal disposed on the substrate. The second terminal has an insertion hole into which the first terminal is inserted, and has a protruding shape protruding in parallel with an insertion direction or an anti-insertion direction of the first terminal. Also, the first terminal and the second terminal are in a resilient contact with each other.
    Type: Grant
    Filed: July 29, 2015
    Date of Patent: September 3, 2019
    Assignee: DENSO CORPORATION
    Inventors: Masashi Yamasaki, Hideki Kabune, Takeshi Sawada
  • Patent number: 10381891
    Abstract: Disclosed is a stator of a motor including a stator core manufactured by a plurality of steel sheets laminated on top of each other; an upper insulator which covers the upper parts of the core base and the teeth to insulate them; a lower insulator which covers the lower parts of the core base and the teeth to insulate them; a coil which is wound on the teeth covered and insulated by the upper insulator and the lower insulator and is connected between the neighboring teeth; and a coil protection cover which covers an upper part of the connected part of the coil to prevent the coil connected between the neighboring teeth from being exposed to the outside.
    Type: Grant
    Filed: October 13, 2015
    Date of Patent: August 13, 2019
    Assignee: NEW MOTECH CO., LTD.
    Inventors: Jeong Cheol Jang, Ji Min Lee, Gyeong Sik Yang
  • Patent number: 10381898
    Abstract: The invention relates to an electric machine (1) having a stator (2), with magnetic-field-conductive material, in which substantially axial grooves (4) are positioned, wherein a winding system (3), which is surrounded and/or penetrated by impregnating resin, is provided in the grooves, wherein the impregnating resin has energy-absorbing particles (7).
    Type: Grant
    Filed: November 9, 2016
    Date of Patent: August 13, 2019
    Assignee: Siemens Aktiengesellschaft
    Inventor: Marion Ballweg
  • Patent number: 10361607
    Abstract: An electric machine for a vehicle comprises a housing, a rotor shaft, a first fan member, and a second fan member. The housing includes a first end portion having at least one air inlet opening and an opposite second end portion having at least one air outlet opening. The rotor shaft extends through at least one of the first end portion and the second end portion and is configured to rotate relative to the housing. The first fan member is located within the housing and is mounted on the rotor shaft. The second fan member is located outside of the housing and is mounted on the rotor shaft. Rotation of the rotor shaft causes each of the first and second fan members to generate an airflow from the at least one air inlet opening to the at least one air outlet opening.
    Type: Grant
    Filed: November 23, 2015
    Date of Patent: July 23, 2019
    Assignee: BorgWarner Inc.
    Inventors: Drake Sayre, Duane Buening
  • Patent number: 10348151
    Abstract: A motor includes a rotary assembly, a stationary assembly, and a bearing mechanism. The rotary assembly includes a resin portion that covers magnets and a rotor core. The rotor core includes a ring-shaped inner core portion, an outer core portion, and connecting portions that radially connect the core elements and the inner core portion. The resin portion includes an upper resin portion and a lower resin portion. The upper resin portion includes gate holes. The lower resin portion is located at a more radially inner side than the outer core elements, and includes a first core support mark exposing a portion of the bottom surface of the rotor core, and a second core support mark located in the outer core portion and exposing a portion of the bottom surface of the rotor core.
    Type: Grant
    Filed: June 27, 2018
    Date of Patent: July 9, 2019
    Assignee: NIDEC CORPORATION
    Inventor: Eiji Furutachi
  • Patent number: 10326339
    Abstract: A rotor of an electric motor configured by combining a resin magnet section molded of thermoplastic resin containing ferrite and a rotation shaft includes a magnetic section for position detection integrally formed of the thermoplastic resin on an end face on one side of the resin magnet section, the thermoplastic resin being injected from an inner diameter side of the resin magnet section to the end face. Because the position of the rotor can be detected by the magnetic section without using a magnet for position detection, cost reduction can be achieved while the accuracy of detecting the position of the rotor is ensured.
    Type: Grant
    Filed: July 8, 2014
    Date of Patent: June 18, 2019
    Assignee: Mitsubishi Electric Corporation
    Inventors: Hiroki Aso, Kazunori Sakanobe, Mineo Yamamoto, Hiroyuki Ishii, Junichiro Oya, Yuto Urabe
  • Patent number: 10320257
    Abstract: An electric motor has: a rotor; a stator; a housing, an opening for opening the storage space upward, and a notch that is concaved downward from an edge surface surrounding the opening; a lead wire connected to the stator; a partition wall that is provided on the inside of the notch in order to separate a sealing space for injecting a sealant and a space outside the sealing space from each other, and has a through-hole for allowing the lead wire to be extended to the outside of the sealing space; a cover that can be attached to the housing from above; and an elastic member that is more elastic than the partition wall and disposed under the partition wall. An end surface of the partition wall is disposed on or above a plane surface including the edge surface of the housing.
    Type: Grant
    Filed: June 17, 2016
    Date of Patent: June 11, 2019
    Assignee: KOBELCO CONSTRUCTION MACHINERY CO., LTD.
    Inventors: Kazushige Koiwai, Seiji Saiki
  • Patent number: 10308365
    Abstract: Disclosed is a high-power electric motor and its fabrication technology. The motor and its distributed power electronics are all being fully integrated in a conventional turbofan engine. The rotor drives directly (with no gears) the LP shaft of the jet engine while requiring minimal modification to a basic jet engine and without distortion to the nacelle geometry. In principle such a configuration should be suitable for a power level of 10 to 50 MW, which makes it fully capable of providing a standard flight envelope by only using electric energy.
    Type: Grant
    Filed: October 12, 2016
    Date of Patent: June 4, 2019
    Assignee: Codrin-Gruie (CG) Cantemir
    Inventor: Codrin-Gruie Cantemir
  • Patent number: 10265846
    Abstract: A servo includes a housing including a gear shaft supporting and positioning structure therein, an electric motor arranged within the housing, a speed reduction gear set, an output gear shaft including a front end protruding out of the housing and a rear end located within the housing, an angle detection device, and a control circuit board. The electric motor is engaged with the output gear shaft through the speed reduction gear set. The rear end of the output gear shaft is connected to the angle detection device. The control circuit board is connected to the electric motor and the angle detection device. The angle detection device includes a magnetic sensor arranged on the control circuit board and a magnet that is connected to the rear end of the output gear shaft and located right in front of the magnetic sensor.
    Type: Grant
    Filed: January 9, 2017
    Date of Patent: April 23, 2019
    Assignee: UBTECH Robotics Corp.
    Inventors: Youjun Xiong, Wenquan Shu, Guanyou Li, Hongbo Zhu
  • Patent number: 10218239
    Abstract: A brushless motor includes a stator having a stator core; and an upper insulating bobbin connected to an upper face of the stator core, an upper surface of the upper insulating bobbin having a plurality of terminal fixing blocks and a plurality of wire through blocks, each terminal fixing block having a wire-through notch for positioning a wire and a terminal socket electrically connected with the wire. A first angle between a wire slot of each terminal fixing block and a radial direction of the upper insulating block is 50°-130°, and a second angle between a terminal socket of each terminal fixing block and a circumference direction of the upper bobbin is 50°-130°.
    Type: Grant
    Filed: July 14, 2016
    Date of Patent: February 26, 2019
    Assignee: BERGSTROM, INC.
    Inventors: Gengxiang Li, Kuilin Yang, Lei Wang
  • Patent number: 10141808
    Abstract: A motor includes a stator, a separating member and a rotor. The stator includes an iron core. The separating member is made of insulating material and includes a first separating part, a second separating part and a third separating part. The second separating part is arranged between the first and third separating parts, and the iron core is arranged between the first and second separating parts. The rotor is rotatably coupled with the separating member and includes a permanent magnet unit arranged between the first and second separating parts. As such, the separating member is able to provide an improved insulation effect for the motor, thus prolonging the service life of the motor.
    Type: Grant
    Filed: January 8, 2016
    Date of Patent: November 27, 2018
    Assignee: Sunonwealth Electric Machine Industry Co., Ltd.
    Inventors: Alex Horng, Duo-Nian Shan
  • Patent number: 10135313
    Abstract: Disclosed is a stator of a motor for a washing machine including: a stator core manufactured by a plurality of steel sheets laminated on top of each other, the stator core having a core base and a plurality of teeth radially formed on the core base; an upper insulator which covers the upper parts of the core base and the teeth to insulate them, the upper insulator having least three upper fastening parts which are formed therein and each of which has an upper fastening hole; and a lower insulator which covers the lower parts of the core base and the teeth to insulate them, the upper insulator having least three upper fastening parts which are formed therein and each of which has a lower fastening hole.
    Type: Grant
    Filed: June 17, 2014
    Date of Patent: November 20, 2018
    Assignee: NEW MOTECH CO., LTD.
    Inventors: Jeong Cheol Jang, Ji Min Lee, Gyeong Sik Yang