Secured By Bonding Agent Patents (Class 310/216.137)
  • Patent number: 10971976
    Abstract: A position detecting purpose permanent magnet 51 constituting a position detection sensor is installed at an opposite side to an output side of a rotational shaft 45 of a rotor housed within a motor housing 11A. A GMR element 56 which constitutes the position detection sensor and a position detection circuit thereof are installed on a side of a motor cover 48 on which a position detection purpose permanent magnet 51 is arranged. GMR element 56 is arranged on a position opposed against the position detection purpose permanent magnet. Thus, since the GMR element and the position detection purpose permanent magnet is installed, a mutually positioning assembly (attachment) accuracy can be improved. In addition, since the electric power conversion circuit and both of the GMR element and its position detection circuit are kept away, such an effect that an accurate detection signal can be obtained can be achieved.
    Type: Grant
    Filed: August 12, 2016
    Date of Patent: April 6, 2021
    Assignee: HITACHI AUTOMOTIVE SYSTEMS, LTD.
    Inventor: Katsumasa Hagiwara
  • Patent number: 10965190
    Abstract: Electric motor comprising a rotor and a stator (2), the stator comprising a body (3) forming a frame and a windings assembly (4, 5) housed in slots of the body. The electric motor comprises at least one rod (16, 23) used to connect, to one another, at least two fixed assembled parts of the electric motor, the rod extending into a housing (9) formed in the body over the entire length thereof in order to emerge on each side of the body.
    Type: Grant
    Filed: October 4, 2016
    Date of Patent: March 30, 2021
    Assignee: SAFRAN LANDING SYSTEMS
    Inventors: Eric Evenor, Francois-Noel Leynaert, Raphael Pierra
  • Patent number: 10923975
    Abstract: A moisture resistant rotor sleeve includes a plurality of stacked laminations forming a sleeve having an outer periphery, an inner periphery, and spaces between adjacent laminations. The rotor sleeve also includes a sealant coupled to the inner periphery such that the outer periphery is free of sealant. The sealant seals the spaces to prevent fluid from traveling through the spaces of the sleeve between the inner periphery and the outer periphery.
    Type: Grant
    Filed: April 28, 2017
    Date of Patent: February 16, 2021
    Assignee: REGAL BELOIT AMERICA, INC.
    Inventors: Daniel S. Figgins, Jeffrey A. Hall
  • Patent number: 10919564
    Abstract: A motor control device includes a frame including a metal material, a substrate disposed on an upper side of the frame with a gap between the substrate and the upper side of the frame member, the substrate including a hole penetrating an upper surface and a lower surface, a wiring that is inserted into the hole from a side of the upper surface of the substrate, and a tip portion connected to the substrate, and an insulating spacer interposed between the frame and the substrate. The spacer includes a side wall portion that surrounds the tip portion of the wiring in a plan view.
    Type: Grant
    Filed: September 22, 2017
    Date of Patent: February 16, 2021
    Assignee: NIDEC CORPORATION
    Inventor: Yoshiaki Yamashita
  • Patent number: 10840771
    Abstract: A motor includes a rotor, a stator assembly, a heat radiation member to radiate heat of the stator assembly, and a resin integrating the heat radiation member with the stator assembly.
    Type: Grant
    Filed: September 28, 2016
    Date of Patent: November 17, 2020
    Assignee: Mitsubishi Electric Corporation
    Inventors: Hiroki Aso, Takaya Shimokawa, Ryogo Takahashi, Junichiro Oya
  • Patent number: 10808783
    Abstract: A pump device (10) includes: a drive unit (30); a cover body (150); a circuit board (130) which faces the cover body (150) and the drive unit (30) in an electrically non-contact state therewith; and a spring member (160) disposed across front and rear sides of the circuit board (130) and in contact with the cover body (150) and the drive unit (30) in an electrically conductive state. The drive unit (30), the spring member (160) and the cover body (150) constitute a static elimination path. The spring member (160) comprises: a spring deformation part (163) which enables spring deformation such that neighboring wires (161) can move toward or away from each other; and an electrically conductive bypass path (162) which is continuously disposed with at least one end of the spring deformation part (163) and is positioned across the front and rear sides of the circuit board (130).
    Type: Grant
    Filed: April 24, 2017
    Date of Patent: October 20, 2020
    Assignee: MIKUNI CORPORATION
    Inventors: Jun Takahashi, Fumitaka Yokosawa
  • Patent number: 10298089
    Abstract: In order to ensure shrink-fitted components, such as a casing, to have a desirable force for holding a stator while maintaining a desirable durability, an electric compressor in which the stator is fixed to the casing by shrink fitting is configured as follows. Three protrusions 41f are provided protruding radially inside from the peripheral wall of a first casing 41 so as to be spaced apart from each other in the circumferential direction, and each protrusion 41f is provided with a groove 41f2 which extends in the axial direction in a circumferentially central portion of the protrusion 41f. Protruding end surfaces 41f1 of the protrusions 41f are fixed to the outer periphery of the stator 3 by shrink fitting at contact interfaces therebetween.
    Type: Grant
    Filed: March 17, 2015
    Date of Patent: May 21, 2019
    Assignee: SANDEN HOLDINGS CORPORATION
    Inventor: Tetsuya Takabe
  • Patent number: 10218241
    Abstract: A motor having a configuration that includes plural openings which are disposed in a circumferential direction on a case bottom surface and are pulled-out bus bar terminals, and is directly connected between a control board and bus bars by using a simple procedure, and to an electric power steering apparatus and a vehicle equipped with the motor. The outer periphery of the motor is enclosed in a case and wirings are implemented at an anti-load side. The motor has a configuration that includes plural openings which are provided in a circumferential direction on a case bottom surface at the anti-load side and allow bus bar terminals to protrude therefrom, and openings which have an almost same shape of the plural openings and are disposed at a predetermined interval in a similar shape are added as needed.
    Type: Grant
    Filed: June 29, 2015
    Date of Patent: February 26, 2019
    Assignee: NSK LTD.
    Inventors: Kozue Nakamura, Toshiaki Asada, Yusuke Kikuchi
  • Patent number: 10069389
    Abstract: At the time of molding, in the stator, the resin material flows inside the vent channels that are formed on the terminal block. At this time, as the resin reservoirs which are formed by expanding cross-sections of the vent channels are provided on the mounting surface of the terminal block, the resin material can be retained in the resin reservoirs. This consequently prevents the resin material from flowing through the vent channels to the outside of the terminal block. When the resin leaked part, which is the resin material that has leaked from the vent channels to the outside and been hardened, falls while using the motor, there is an adverse effect on another piece of equipment. Thus, the resin reservoirs that are formed in the vent channels act effectively in terms of preventing the resin material from flowing to the outside.
    Type: Grant
    Filed: February 26, 2016
    Date of Patent: September 4, 2018
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Kenshiro Moride, Masashige Tanaka
  • Patent number: 9441628
    Abstract: An electric pump unit for a transmission, which supplies a hydraulic pressure to the transmission, includes: a pump which takes in and discharges oil; and a pump driving electric motor including a motor shaft connected to the pump, a motor rotor fixedly provided on the motor shaft, and a motor stator disposed around a circumference of the motor rotor. The pump and the electric motor are integrated with a lid that tightly closes an opening in a recess portion which is formed on a transmission housing of the transmission and into which the oil is introduced, and are accommodated within the recess portion.
    Type: Grant
    Filed: August 4, 2010
    Date of Patent: September 13, 2016
    Assignee: JTEKT CORPORATION
    Inventors: Takatoshi Sakata, Akihiko Kawano, Takeo Iino, Naohito Yoshida
  • Patent number: 9231449
    Abstract: A rotating electric machine for driving a drive object is provided. The rotating electric machine includes a motor case, a stator, a winding, a rotor, a shaft, a base cap, an end cap, an output rod, base cap holes, end cap holes, and through bolts. The base cap has base cap flanges formed on a circumferential edge and extending radially-outward beyond an outer wall of the motor case. The end cap has end cap flanges formed on a circumferential edge and extending radially-outward beyond the outer wall of the motor case. Base cap holes are formed on the base cap flanges and end cap holes in axial alignment with the base cap holes are formed on the end cap flanges. Through bolts fasten the base cap flanges to the end cap flanges.
    Type: Grant
    Filed: August 1, 2013
    Date of Patent: January 5, 2016
    Assignee: DENSO CORPORATION
    Inventors: Nobuhiko Uryu, Masashi Yamasaki
  • Patent number: 8643232
    Abstract: A stator manufacturing method for a motor includes an assembling step coupling a magnetic driving assembly onto an outer circumferential wall of a shaft tube, a mold combining step disposing the shaft tube and the magnetic driving assembly in an intra-cavity of a fixture unit, a glue injecting and forming step injecting a filling glue into the intra-cavity, with the filling glue solidifying into a protective glue coating with which the shaft tube and magnetic driving assembly are coated, a mold removing step removing the fixture unit from the shaft tube, magnetic driving assembly and protective glue coating, and a shaft tube seat coupling step providing a shaft tube seat having an engaging portion and coupling the engaging portion with the shaft tube, allowing the shaft tube, the magnetic driving assembly, the protective glue coating and the shaft tube seat to be coupled together to form a stator for the motor.
    Type: Grant
    Filed: January 31, 2011
    Date of Patent: February 4, 2014
    Assignee: Sunonwealth Electric Machine Industry Co., Ltd.
    Inventors: Ching-Sheng Hung, Kun-Li Hsieh, Shu-Hui Chang
  • Publication number: 20140009031
    Abstract: A motor stator of the invention is provided with a laminated stator core comprising a plurality of core pieces having teeth and linked by intermediate thin-wall portions. The thin-wall portions are bent to form the stator core into an annular shape with two ends of the stator core joined by welding, and slots are formed between adjoining pairs of the teeth. A welded portion of the stator core is not near a center line in a radial direction of any of the slots.
    Type: Application
    Filed: February 2, 2012
    Publication date: January 9, 2014
    Applicant: PANASONIC CORPORATION
    Inventors: Hu Li, Yuichi Yoshikawa, Yukihiro Okada, Minoru Chamura, Tooru Nakamaru, Yasuji Echizen
  • Patent number: 8587178
    Abstract: A rotor of an ultra high speed induction motor includes a stacked body having a plurality of loop type steel sheets stacked to form a cylinder, with a plurality of slots circumferentially formed in a lengthwise direction of the stacked body. Loop type upper, lower end rings are disposed on the upper and lower portions of the stacked body and having a plurality of upper and lower through-holes, respectively, to correspond to the slots. Conductive bars are coated with fusible bonding flux and are inserted into the upper through-holes, the slots, and the lower through-holes such that the conductive bars are integrally bonded into the upper through-holes, the slots, and the lower through-holes, following the fusion and solidification of the fusible bonding flux.
    Type: Grant
    Filed: September 30, 2010
    Date of Patent: November 19, 2013
    Assignee: GEM Co., Ltd.
    Inventors: Seungsu Hong, Seongu Yang
  • Patent number: 8562313
    Abstract: A pump assembly with an electric motor includes a stator having an iron core (16) and windings arranged thereon and being arranged in a stator housing surrounding the electric motor to the outside. The stator housing (6) is formed as a cast component, into which the iron core (16) is cast, and the windings have been deposited on the iron core (16) after the casting of the iron core (16) into the stator housing (6).
    Type: Grant
    Filed: December 20, 2007
    Date of Patent: October 22, 2013
    Assignee: Grundfos Management a/s
    Inventors: Lars Kannegaard Andersen, Steen Mikkelsen, Brian Lundsted Poulsen
  • Publication number: 20130181571
    Abstract: An improved structure for electrical machines generally comprises a plurality of stator modules, a supporting member, and at least one outer rotor. The stator modules are interconnected to form a stator core and define a total of seventy-two slots. The supporting member is fixedly mounted with the stator modules at a circumference thereof. The outer rotor is provided with a plurality of magnetic members for magnetically interaction with the stator modules. Thereby, the stator core thereof can be fabricated in a modularized way, so that the disadvantage of having to cut out a large central part of a stator core, as in conventional structures, can be overcome; moreover, the stator core thereof can cooperate with a rotor that employs iron-oxides magnets, to achieve a high power output and to increase the good rate of product.
    Type: Application
    Filed: January 17, 2012
    Publication date: July 18, 2013
    Inventor: HSIU-MEI CHANG
  • Publication number: 20120299437
    Abstract: A ring-shaped back yoke and a ring-shaped magnet are provided on a bottom surface of a ring-shaped opening part formed at a central portion of an alignment ring of a turntable part. The back yoke is provided with a protruding pawl which protrudes in a direction perpendicular to a plane of the back yoke, and the alignment ring is provided with a through hole into which the protruding pawl is inserted when mounting the back yoke to the alignment ring. The protruding pawl of the back yoke and an upper surface of a rotor frame are fixed together using an adhesive.
    Type: Application
    Filed: March 9, 2010
    Publication date: November 29, 2012
    Applicant: MINEBEA MOTOR MANUFACTURING CORPORATION
    Inventors: Toshiyuki Nishikata, Hideki Noto
  • Patent number: 8258664
    Abstract: A hybrid motor for powering a compressor of a chiller system includes a first rotor portion and a first stator portion configured as a permanent magnet motor and a second rotor portion and a second stator portion configured as a reluctance motor. The second rotor portion includes a reluctance-type rotor, and the second stator portion includes electromagnetic windings capable of inducing a rotary magnetic field. The first rotor portion and the second rotor portion are attached to a common drive shaft. The reluctance motor is arranged to generate start-up torque and initiate rotation of the drive shaft until the drive shaft achieves a predetermined rotational speed. The permanent magnet motor is arranged to power the drive shaft between the predetermined rotational speed and a maximum rotational speed.
    Type: Grant
    Filed: October 2, 2009
    Date of Patent: September 4, 2012
    Assignee: Johnson Controls Technology Company
    Inventors: Justin D. Warner, Ivan Jadric, Michael S. Todd, Zhiqiao Wu, Shreesha Adiga Manoor, Konstantin Borisov, Scott Victor Slothower, Kanishk Dubey, John C. Hansen
  • Publication number: 20120139387
    Abstract: A stator manufacturing method for a motor includes an assembling step coupling a magnetic driving assembly onto an outer circumferential wall of a shaft tube, a mold combining step disposing the shaft tube and the magnetic driving assembly in an intra-cavity of a fixture unit, a glue injecting and forming step injecting a filling glue into the intra-cavity, wherein the filling glue solidifies into a protective glue coating with which the shaft tube and magnetic driving assembly are coated, a mold removing step removing the fixture unit from the shaft tube, magnetic driving assembly and protective glue coating, and a shaft tube seat coupling step providing a shaft tube seat having an engaging portion and coupling the engaging portion with the shaft tube, allowing the shaft tube, the magnetic driving assembly, the protective glue coating and the shaft tube seat to be coupled together to form a stator for the motor.
    Type: Application
    Filed: January 31, 2011
    Publication date: June 7, 2012
    Inventors: Ching-Sheng Hung, Kun-Li Hsieh, Shu-Hui Chang
  • Patent number: 8169111
    Abstract: A brushless motor has a stator, a rotor rotatably disposed in an inner circumferential portion of the stator, and a resolver configured to detect a rotational position of the rotor with respect to the stator. The resolver has a resolver stator disposed at a fixed circumferential position with respect to the stator, and a resolver rotor disposed at a fixed circumferential position with respect to the rotor.
    Type: Grant
    Filed: December 13, 2007
    Date of Patent: May 1, 2012
    Assignee: Showa Corporation
    Inventor: Hideo Yoshimura
  • Patent number: 8110959
    Abstract: A method for producing a core and a method for producing an electrical machine. Said core has a body of soft magnetic material having a plurality of teeth and at least one magnetic flux cross section area enlarging element being made from a composite of a soft magnetic powder and a binder, said magnetic flux area enlarging element being arranged onto a tooth of said body.
    Type: Grant
    Filed: May 4, 2005
    Date of Patent: February 7, 2012
    Assignee: Höganäs AB
    Inventors: Lars Hultman, Göran Nord, Mats Alaküla
  • Patent number: 8040015
    Abstract: The invention relates to a rotor for an electric motor, comprising a rotor shaft, a rotor core stack that is attached to the rotor shaft, a ring member which surrounds the rotor core stack, and a gap located between the rotor core stack and the ring member. Adhesive is introduced into the gap for fastening the ring member to the rotor core stack. Molded articles that are used as spacers are admixed to the adhesive.
    Type: Grant
    Filed: July 26, 2007
    Date of Patent: October 18, 2011
    Assignee: Brose Fahrzeugteile GmbH & Co. Kommanditgesellschaft, Würzburg
    Inventor: Klaus Zaps
  • Patent number: 7977837
    Abstract: A rotary body used in an energy storage device and capable of storing a large amount of external energy is provided in an energy storage device that stores external energy as the energy of the rotary motion of the rotary body for which the frictional resistance of the bearing parts has been reduced to a high degree using the fishing effect of superconductivity. The rotary body is used in an energy storage device capable of storing energy by rotating the rotary body for which the frictional resistance of the bearing parts having floating support that makes use of the fishing effect of superconductivity has been made very small. The rotary body is made of CFRP, and the required compressive stress is applied to it in the direction opposite to the centrifugal force of the rotary body when rotating. The rotary body has a bar-like structure elongated in the direction of the centrifugal force when the rotary body rotates.
    Type: Grant
    Filed: September 5, 2005
    Date of Patent: July 12, 2011
    Assignee: Six One Kaihatsukikou Co., Ltd.
    Inventor: Terutsugu Oyama
  • Publication number: 20100277031
    Abstract: The invention relates to a method for producing a stator housing unit for an electric machine, wherein a stator is connected to a housing. Before connecting, at least one partial surface of the common contact surfaces is coated with a paint material comprising a material additive expanding irreversibly upon first reaching a prescribed expansion temperature. The invention further relates to a stator housing unit and a paint material having 5% to 10% weight proportion of a material additive expanding irreversibly upon first reaching a prescribed expansion temperature, 10% to 20% boron nitride, and phenolic resin.
    Type: Application
    Filed: December 5, 2008
    Publication date: November 4, 2010
    Inventors: Jorg Nelges, Thomas Gilke
  • Publication number: 20090243424
    Abstract: A gap winding motor includes a stator and a rotor. The stator includes a stator core and air-core coils for generating a rotating magnetic field which are attached to an inner peripheral surface of the stator core. The rotor is disposed so as to face the stator with an air gap therebetween. A stator core is divided into two core portions in an axial direction of the motor, and a spacer is disposed between the core portions. A unique air-gap section is provided between the core portions, and coil terminal processes are performed in the air-gap section between the core portions.
    Type: Application
    Filed: June 11, 2009
    Publication date: October 1, 2009
    Applicant: KABUSHIKI KAISHA YASKAWA DENKI
    Inventors: Kazuya WATANABE, Masahiko Tanabe