Patents Examined by Leda Pham
  • Electric machine module cooling system and method
    Patent number: 9048710
    Abstract: Embodiments of the invention provide an electric machine module. The module can include a housing, which can define a machine cavity. In some embodiments, an electric machine can be positioned within the machine cavity. In some embodiments, the electric machine can include a stator assembly including potted stator end turns. An end turn member can be positioned within the machine cavity and can include a radially inward flange and a radially outward flange axially extending from a central region. The end turn member is configured and arranged so that the flanges are substantially adjacent the stator end turns. The end turn member can include at least one second member aperture disposed through a portion of the central region.
    Type: Grant
    Filed: August 29, 2011
    Date of Patent: June 2, 2015
    Assignee: Remy Technologies, LLC
    Inventors: Bradley D. Chamberlin, James J. Ramey, Alex S. Creviston
  • Multipolar electromagnetic generator
    Patent number: 9048717
    Abstract: A power generator includes a first array of magnets or a first sheet magnet, a first conductor, and a power management circuit. The first array comprises a one dimensional or two dimensional array of magnets. The first sheet magnet includes a one dimensional or two dimensional array of alternating magnetic poles. The first conductor comprises a first serpentine conductor that is on a plurality of layers of a first multilayer printed circuit board or a first serpentine conductor that is on one or more planes. The power management circuit provides DC power as a result of relative motion between the first array of magnets or the first sheet magnet and the first conductor.
    Type: Grant
    Filed: August 13, 2010
    Date of Patent: June 2, 2015
    Assignee: EcoHarvester, Inc.
    Inventors: Eri Takahashi, Shadrach Joseph Roundy
  • Generator with compact single turn wave winding and wind turbine
    Patent number: 9048702
    Abstract: A generator is provided that includes at least one pole set representing one phase. Each pole set includes a plurality of poles. Only one conductor is turned about the poles of a particular pole set such that only half a single turn is associated to each pole of the particular pole set.
    Type: Grant
    Filed: May 18, 2011
    Date of Patent: June 2, 2015
    Assignee: SIEMENS AKTIENGESELLSCHAFT
    Inventor: Mohammad Kimiabeigi
  • Motor
    Patent number: 9041269
    Abstract: There is provided a motor including a rotor and a stator arranged outside the rotor in the radial direction. The rotor includes a rotor core, a plurality of magnets arranged at equal intervals in the circumferential direction of the rotor core and functioning as one magnetic pole, and salient poles integrated with the rotor core, each arranged between adjacent magnets and at a distance from the magnets. The salient poles function as the other magnetic pole. A stator has a stator core having a plurality of teeth extending in the radial direction of the stator and arranged at equal intervals in the circumferential direction, and multi-phase coils attached to the teeth.
    Type: Grant
    Filed: June 14, 2011
    Date of Patent: May 26, 2015
    Assignee: Asmo Co., Ltd.
    Inventors: Shigemasa Kato, Seiya Yokoyama, Yoji Yamada, Keisuke Koide, Yoshiaki Takemoto, Shinji Santo
  • Electronically commutated electric machine
    Patent number: 9030065
    Abstract: The invention relates to an electronically commutated electric machine (1), comprising a stator housing (3) which receives a stator (4) in a stator chamber (13) and which delimits a rotor chamber (14) receiving a rotor. According to the invention, the stator housing (3) comprises a main housing (31) and a cover (9), wherein an elastic sealing element (8) is arranged between the main housing (31) and cover (9) and extends into the inside of the stator housing (3) with at least one radial region (30) and forms a tolerance compensating element (19) acting on the stator (4).
    Type: Grant
    Filed: November 2, 2009
    Date of Patent: May 12, 2015
    Assignee: Robert Bosch GmbH
    Inventors: Bernd Hein, Jerome Thiery, Christoph Heier
  • Cooling structure of rotating electric machine
    Patent number: 9030062
    Abstract: A cooling structure of a rotating electric machine includes a rotor core formed of a plurality of electromagnetic steel plates and a resin molding portion molding the rotor core with resin. The rotor core is provided with a through hole passing therethrough in the axial direction of the central axis that is a rotation axis. The rotor core is provided inside the through hole with an oil passage through which oil circulates. The resin molding portion has a cover portion covering the outer peripheral side of the oil passage. This configuration can provide the cooling structure of the rotating electric machine that achieves efficient cooling while suppressing occurrence of energy loss.
    Type: Grant
    Filed: October 16, 2009
    Date of Patent: May 12, 2015
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventor: Katsunari Matsumoto
  • Stator for an EC-motor and EC-motor with such a stator
    Patent number: 9018810
    Abstract: A stator for a brushless, electronically commutated electric motor having a stator core wound with stator windings and control electronics for controlling the stator windings. The stator core together with the stator windings are enclosed in a molded encapsulation made of a plastic material of a defined thermal conductivity (?St). The temperature sensor is arranged on the outside at the encapsulation, and the control electronics are designed such that they calculate the temperature in the region of the stator windings on the basis of the temperature detected by the temperature sensor taking into account a specific stator temperature profile stored in a memory. Furthermore, the invention relates to a brushless, electronically commutated electric motor having a stator as described above.
    Type: Grant
    Filed: June 8, 2012
    Date of Patent: April 28, 2015
    Assignee: ebm-papst Mulfingen GmbH & Co. KG
    Inventors: Holger Hartmann, Gerd Futterlieb
  • Motor
    Patent number: 9018814
    Abstract: A motor includes a bearing holder having a substantially cylindrical shape and a surrounding member fixed to a radial outer surface of the bearing holder. The bearing holder includes a plurality of holder protrusion portions each including a radial outer surface at least partially making contact with the surrounding member and a plurality of holder recess portions positioned radially inward of the plurality of holder protrusion portions. The plurality of holder protrusion portions and the plurality of holder recess portions are alternately arranged along a circumferential direction. A central angle of a portion of an inner circumferential surface of the surrounding member remaining out of contact with each of the plurality of holder protrusion portions is equal to or larger than a central angle of a portion of an outer circumferential surface of a bearing unit.
    Type: Grant
    Filed: January 15, 2013
    Date of Patent: April 28, 2015
    Assignee: Nidec Corporation
    Inventor: Yuji Watanabe
  • Rotating machine and rotor thereof
    Patent number: 9013082
    Abstract: A rotating machine is provided, including a rotor and a stator set. The rotor rotates around an axis, wherein the rotor includes a first permanent magnet set and a second permanent magnet set, the first permanent magnet set is magnetized in a circumference direction of the axis, and the second permanent magnet set is magnetized in an axial direction of the axis. The stator set corresponds to the rotor, wherein the stator set includes a radial stator member and an axial stator member, the axial stator member corresponds to the rotor in the axial direction of the axis, and the radial stator member corresponds to the rotor in a radial direction of the axis.
    Type: Grant
    Filed: September 20, 2011
    Date of Patent: April 21, 2015
    Assignee: Delta Electronics, Inc.
    Inventors: Xiao Ge, Jian-Ping Ying, Hong-Cheng Sheu, Hongliu Zhu
  • Bicycle generator
    Patent number: 9013080
    Abstract: A bicycle generator that includes a stator, a rotating member defining a rotating axis, a magnet arranged so as to face the stator, a first transmission structure that transmits rotational motion of the rotating member to the magnet at a first rotational speed ratio when the rotating member rotates in a first direction, and a second transmission structure that transmits rotational motion of the rotating member to the magnet at a second rotational speed ratio when the rotating member rotates in a second direction. The second rotational speed ratio is greater than the first rotational speed ratio.
    Type: Grant
    Filed: October 1, 2012
    Date of Patent: April 21, 2015
    Assignee: Shimano Inc.
    Inventor: Mitsuru Tauchi
  • Electric motor with maximized active motive material
    Patent number: 9000640
    Abstract: An electric motor configured to maximize active motive material within a given motor size by having one or more phase lead exit holes configured to prevent unwanted outside contaminants from entering the motor, phase leads each having an integral strain relief, and two or more Wye terminations that are not electrically connected to each other.
    Type: Grant
    Filed: October 2, 2012
    Date of Patent: April 7, 2015
    Assignee: Zero Motorcycles, Inc.
    Inventors: Ryan John Biffard, Micah Benjamin Bayless
  • Electric motor
    Patent number: 8987966
    Abstract: An electric motor has a wound stator and a permanent magnet rotor. The rotor includes a shaft, a hub fixed on the shaft, a plurality of rotor core segments and magnets fixed around the hub, and a pair of covers fixed to axial ends of the rotor core segments. The hub and covers are formed on the rotor core segments by inserting molding and one of the covers has openings to allow the magnets to be inserted into spaces formed between adjacent rotor core segments such that the rotor core segments and magnets are alternately arranged in a circumferential direction of the rotor.
    Type: Grant
    Filed: January 18, 2012
    Date of Patent: March 24, 2015
    Assignee: Johnson Electric S.A.
    Inventors: Jian Zhao, Yue Li, Mao Xiong Jiang, Ya Ming Zhang, Xiao Ning Zhu
  • Rotor and motor
    Patent number: 8981611
    Abstract: A rotor includes magnetic pole portions and first and second ferric core portions. The first and second ferric core portions are each located between magnetic pole portions in the circumferential direction of a rotor. A first gap is formed between the first or second ferric core portion and a magnetic pole portion at a first circumferential side. A second gap is formed between the first or second ferric core portion and the magnetic pole portion at a second circumferential side. The first gap has a smaller width than the second gap at the first ferric core portion. The first ferric core portion is inclined toward the first circumferential side. The first gap is larger than the second gap at the second ferric core portion. The second ferric core portion is inclined toward the second circumferential side.
    Type: Grant
    Filed: October 24, 2012
    Date of Patent: March 17, 2015
    Assignee: ASMO Co., Ltd.
    Inventors: Kenta Goto, Hideaki Nishiura, Shigemasa Kato, Yoshiyuki Takabe, Masashi Matsuda, Toshihiro Uchida
  • Rotary electric machine
    Patent number: 8970077
    Abstract: A rotary electric machine includes a rotor, a stator having coils wound to surround the rotor, a cylindrical ring member fixedly mounted on the stator by shrinkage fitting, and a frame disposed on the outside of the ring member with a gap created in between. The distance of the gap varies as a result of thermal expansion of the stator and the ring member. An outer surface of the ring member goes into contact with the frame when the stator and the ring member thermally expand, whereby the stator and the ring member are efficiently cooled.
    Type: Grant
    Filed: April 20, 2012
    Date of Patent: March 3, 2015
    Assignee: Mitsubishi Electric Corporation
    Inventors: Tadashi Murakami, Kouichi Ojima, Masaya Inoue
  • One-piece resin component for dynamoelectric machine and manufacturing method using the same
    Patent number: 8963381
    Abstract: In a one-piece resin component, a plurality of stackable resin portions is resin-molded integrally with a resin housing of a dynamoelectric machine and radially outwardly projects from the resin housing. Each the plurality of stackable resin portions is adapted to be stacked against a corresponding one of a plurality of stackable resin portions of another one-piece resin component that is generally identical to the one-piece resin component.
    Type: Grant
    Filed: September 23, 2011
    Date of Patent: February 24, 2015
    Assignee: Asmo Co., Ltd.
    Inventors: Hiroki Sugiura, Hiroaki Honma, Shinya Sugiura
  • Integrated direct drive motor and control
    Patent number: 8946954
    Abstract: An outer rotor motor is provided for use in a machine. The motor includes a rotor and a stator. A control board assembly configured to control at least one operational characteristic of the motor is mounted at least in part radially inside the stator.
    Type: Grant
    Filed: April 20, 2012
    Date of Patent: February 3, 2015
    Assignee: Nidec Motor Corporation
    Inventors: Gregory A. Peterson, Daniel E. Hilton, Michael W. Major
  • Fixing structure of radial lead of rotating electrical machine
    Patent number: 8946956
    Abstract: A fixing structure of a radial lead of a rotating electrical machine connects slip rings provided to a rotation shaft of a rotor and axial leads disposed in a center hole of the rotation shaft and supplying a current to a rotor coil. A radial lead is inserted into a radial lead hole penetrating through the rotation shaft in a radial direction from the center hole and a tapered male screw formed at one end is threaded into a tapered female screw formed in the axial lead while the other end is electrically connected to the slip ring. A sealing member installed to a step portion of the radial lead hole is fastened, via a spacer, by a fastening nut threaded into a straight screw of the radial lead, so that a side of the center hole is maintained airtight from an outside.
    Type: Grant
    Filed: August 18, 2010
    Date of Patent: February 3, 2015
    Assignee: Mitsubishi Electric Corporation
    Inventors: Yoshihide Kikuichi, Kiyonori Koga
  • Rotor of permanent magnet embedded motor, blower, and compressor
    Patent number: 8937420
    Abstract: A rotor of a permanent magnet embedded motor includes a rotor iron core formed by stacking a predetermined number of magnetic steel sheets punched into predetermined shapes, a plurality of permanent-magnet insertion holes formed along an outer circumferential portion of the rotor iron core and each including permanent-magnet end-portion cavities on its both ends, a plurality of permanent magnets inserted into the permanent-magnet insertion holes, and a plurality of slits formed in the outer-peripheral side iron core portion outside of each permanent-magnet insertion holes, wherein a distance between a first slit present in a radial direction of each of the end portions of the permanent magnets and a second slit, which is adjacent to the first slit and closer to the center of its magnetic pole, is smaller than a distance between those slits other than the first and second slits.
    Type: Grant
    Filed: March 25, 2010
    Date of Patent: January 20, 2015
    Assignee: Mitsubishi Electric Corporation
    Inventors: Koji Yabe, Hayato Yoshino, Kazuhiko Baba
  • Electric machine, in particular commutator machine
    Patent number: 8917008
    Abstract: The invention relates to an electric machine, in particular a commutator machine (10), the carbon brushes (14) of which cooperate with a commutator (13) to supply the rotor with current, the carbon brushes (14) being continuously provided or provided in layer sections with different additives such as scouring material, lubricants or similar. To achieve a longer service life for the carbon brushes (14), a maximum of half, preferably less than half of all the carbon brushes (14) of the machine have a significant fraction of an additive, said fraction differing from that of the other carbon brushes (14).
    Type: Grant
    Filed: May 7, 2009
    Date of Patent: December 23, 2014
    Assignee: Robert Bosch GmbH
    Inventors: Michael Bayer, Sven Hartmann
  • Retaining ring configuration system
    Patent number: 8907539
    Abstract: A retaining ring configuration system is disclosed. In one embodiment, the system includes a set of adjustment apparatuses configured to contact a portion of a generator rotor, each of the set of adjustment apparatuses including: a base member for contacting the portion of the generator rotor; an adjustment member for adjusting a position of the generator retaining ring relative to the generator rotor; and an actuation member coupled to the base member and operably attached to the adjustment member, the actuation member for actuating movement of the adjustment member to adjust the position of the generator retaining ring relative to the generator rotor.
    Type: Grant
    Filed: August 26, 2011
    Date of Patent: December 9, 2014
    Assignee: General Electric Company
    Inventors: Yu Wang, Jordan Christopher Baker, John Matthew Sassatelli, John Thomas Sterle