Molded Plastic Patents (Class 310/43)
  • Publication number: 20140035399
    Abstract: The invention relates to a brush device, in particular for an electric machine, comprising at least one brush holder which has at least two brush boxes for receiving in each case one brush, wherein the brushes are mounted in a displaceable manner in the respective brush box and wherein a helical spring can be braced/is pretensioned in each case between one of the brushes and a stop in the respective brush box, and comprising at least two elastically deformable electrical conductors which are each connected with an end thereof to one of the brushes.
    Type: Application
    Filed: July 31, 2013
    Publication date: February 6, 2014
    Inventors: Bernd Schroeder, Yves Detrois, Carnelia Mauer
  • Patent number: 8643231
    Abstract: Embodiments of the invention provide a water resistant electric motor and method of assembly. The motor includes a housing with a main body having a rear endbell, a stator compartment with stator windings, and a first ball bearing. The motor includes a lid having a second ball bearing, and a rotor with a shaft having a first end positioned in the first ball bearing and a second end positioned in the second ball bearing. An epoxy coating is used to overmold the stator compartment, the stator windings, and the rotor. The motor includes a printed circuit board assembly treated with an adhesion promotor and positioned adjacent to the rotor and stator windings. A silicone sealant is used to encapsulate the printed circuit board assembly, the rotor, and the stator windings and reacts with the adhesion promotor. The motor includes a gasket between the lid and the main body.
    Type: Grant
    Filed: May 18, 2010
    Date of Patent: February 4, 2014
    Assignee: Moog Inc.
    Inventor: Ron Flanary
  • 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: 20140028119
    Abstract: A rotor for a submersible motor includes a shaft and a hub. The hub is: disposed around the shaft, torsionally connected to the shaft, and made from a magnetically permeable metal or alloy. The rotor further includes permanent magnets disposed around the hub; and a polymer shroud encapsulating the permanent magnets and molded to the hub.
    Type: Application
    Filed: July 25, 2012
    Publication date: January 30, 2014
    Inventors: Vladimir Iosifovich Sagalovskiiy, Andreiy Vladimirovich Sagalovskiiy, Ol'ga Nikolaevna Gmyzina
  • Publication number: 20140030121
    Abstract: An electric motor has been developed that includes a housing to prevent particles from exiting one compartment of the motor, while enabling air flow through another compartment of the motor. The enclosed compartment includes a printed circuit board having a plurality of electronics components to prevent debris produced by a catastrophic failure of an electronic component from escaping the housing. Vents are provided in a separate portion of the housing to enable air to circulate about the primary components of the motor.
    Type: Application
    Filed: July 25, 2012
    Publication date: January 30, 2014
    Applicant: NIDEC MOTOR CORPORATION
    Inventors: Jason A. Richter, Stephen J. Burton
  • Publication number: 20140028120
    Abstract: The invention relates to an actuator for a flap for opening and closing an air passage in an air conditioner, ventilator, and/or heater, comprising a housing (1) shaped to accommodate a motor as well as a gearing arrangement. The actuator is characterized in that the housing (1) includes at least one abutment element (5) for limiting the movement of a rotational shaft (3) with respect to the casing of the motor, as well as a means (6) for compensating for a space between the abutment element (5) and a free end of the rotational shaft (3).
    Type: Application
    Filed: January 25, 2012
    Publication date: January 30, 2014
    Applicant: Valeo Systemes Thermiques
    Inventors: Nathalie Dion, Romain Barbeau
  • Publication number: 20140021808
    Abstract: An actuator assembly includes a housing with a motor compartment, a gear compartment, a bulkhead separating the motor compartment from the gear compartment, and an aperture through the bulkhead. The actuator assembly also includes a motor assembly in the motor compartment defining a space radially between the motor assembly and the gear motor compartment. A high thermal conductivity material is disposed within the space to transfer heat from the motor assembly to the housing. The bulkhead includes one of a groove and a rib surrounding the aperture on the side of the bulkhead facing the motor compartment and the motor assembly includes the other of the groove and the rib such that the rib fits within the groove to prevent the high thermal conductivity material from migrating radially inward of the groove and the rib when the high thermal conductivity material is injected into the space.
    Type: Application
    Filed: July 18, 2012
    Publication date: January 23, 2014
    Applicant: DELPHI TECHNOLOGIES, INC.
    Inventors: SAMUEL R. PALFENIER, OSCAR VAZQUEZ, ALEJANDRO AVILA
  • Patent number: 8633623
    Abstract: Apparatus is provided for use in a submersible pump, comprising; a stator having electrical windings and configured with a cavity to receive a rotor of a motor and to provide an electromotive force to drive the rotor arranged inside the cavity; a switch having circuitry configured to response to a level of fluid and control the operation of the stator; and electrical leads and connections configured to electrically couple the stator and the switch, and to provide power to operate the stator and the switch to drive the stator and to turn the electromotive force on and off to control the pumping of the fluid by submersible pump; the stator, the switch and electrical leads and connections being at least partly encapsulated in a material so as to form an encapsulated stator assembly with a watertight seal to prevent fluid from contacting the electrical windings, the circuitry of the switch and the electrical leads and connections.
    Type: Grant
    Filed: August 18, 2010
    Date of Patent: January 21, 2014
    Assignee: Xylem IP Holdings LLC.
    Inventor: Douglas J. Bingler
  • Publication number: 20140015347
    Abstract: A permanent magnet motor, generator or the like that is liquid cooled using glycol or similar fluid with the means defining cooling passageways disposed directly in the winding slots of the stator between and in engagement with the windings and stator laminations.
    Type: Application
    Filed: July 13, 2012
    Publication date: January 16, 2014
    Applicant: LCDrives Corp.
    Inventors: Russel Hugh Marvin, Thomas R. Johnson
  • Publication number: 20140015349
    Abstract: A stator assembly of an electric machine includes a segmented lamination stack formed of an interconnected series of lamination segment stacks, and a plurality of coil isolators each having a conductor wound thereon, each having a radially outward interlock at each circumferential end thereof, and each having a radially inward interlock at each circumferential end thereof, the coil isolators being serially connected by the interlocks to form a cavity closed down the axial length of the stator assembly, the coil isolators electrically insulating the lamination segments from the conductors.
    Type: Application
    Filed: July 10, 2013
    Publication date: January 16, 2014
    Inventors: Bradley D. Chamberlin, Cary Ramey
  • Publication number: 20140015348
    Abstract: A motor comprises a stator having open slots with a double layer formed coil lapped winding and the method to manufacture thereof.
    Type: Application
    Filed: July 13, 2012
    Publication date: January 16, 2014
    Applicant: SINOELECTRIC POWERTRAIN CORPORATION
    Inventor: Zhesheng Li
  • Publication number: 20140009009
    Abstract: An axial gap rotating-electric machine includes a stator, a rotor arranged via an air gap in the direction of an axis of rotation of a rotating-electric machine with respect to the stator, and a housing configured to accommodate the stator and the rotor, and the stator includes a plurality of stator cores arranged in the circumferential direction, coils configured to wind the peripheries of the respective stator cores, and a resin for molding the plurality of stator cores wound with the coils, and the stator cores each include a protruding portion protruding partly from the coil in the direction of axis of rotation, and a conductive member is provided so as to come into contact with peripheral surfaces of the protruding portions of the stator cores, and grounding is achieved by the conductive member.
    Type: Application
    Filed: July 3, 2013
    Publication date: January 9, 2014
    Inventors: Kenta DEGUCHI, Hirooki TOKOI, Zhuonan WANG, Norihisa IWASAKI, Yuji ENOMOTO
  • Patent number: 8624451
    Abstract: A permanent-magnet synchronous motor of a draining pump is disclosed. It includes a permanent-magnet rotor for driving an impeller to rotate, a pump body for supporting the permanent-magnet rotor, a stator core and a stator coil. Among which, the stator coil is constructed with an enamelled aluminum wire winding which is coiled by an enamelled aluminum wire and sealed in a container. The invention applies the enamelled aluminum wire to the permanent-magnet synchronous motor of a draining pump. The winding of the stator coil and a welding part of its lead-out wire are sealed with plastic or epoxy resin which effectively isolate them from outside air, especially damp air. Therefore, the invention prevent the enamelled aluminum wire winding of the stator coil and the welding part of its lead-out wire from being oxidized in air and being corroded by the moisture, acid or alkaline matter in damp air.
    Type: Grant
    Filed: December 15, 2009
    Date of Patent: January 7, 2014
    Assignee: Jiangmen Idear Hanyu Electrical Joint-Stock Co., Ltd.
    Inventors: Huashan Shi, Yuyang Ma
  • Publication number: 20140001890
    Abstract: A brushless motor for the electric power tool is configured such that a rotor having a magnet is radially disposed on the inner side of a stator having winding wires, and a bonded magnet is used as the magnet of the rotor.
    Type: Application
    Filed: November 28, 2011
    Publication date: January 2, 2014
    Applicant: MAKITA CORPORATION
    Inventors: Kenichi Ota, Masanori Higashi
  • Publication number: 20130342038
    Abstract: Fastening device (1) for an armature lamella stack (2) of a DC motor, characterized in that the fastening device (1) is disposed between the armature lamella stack (2) and a shaft (3) of the DC motor and is designed as a torsionally soft connection of said armature lamella stack (2) to the shaft (3).
    Type: Application
    Filed: June 25, 2013
    Publication date: December 26, 2013
    Inventors: Frank Kopf, Walter Lehnert, Michael Strupp, Dana Nicgorski, Vincent Fix, Friedrich Meyer
  • Publication number: 20130334906
    Abstract: To obtain a drive unit integrated rotating electrical machine that makes it easier to connect power circuits and achieves not only excellent vibration resistance but also excellent heat releasing properties. Means for Solution A drive unit integrated rotating electrical machine has a motor, a drive unit driving the motor under control and provided with power switching elements and conductors passing a current to the power switching elements, and a heat sink cooling the drive unit, which are combined into one unit. The drive unit integrated rotating electrical machine is characterized in that: the power switching elements are molded and formed into mold modules in a state in which terminals thereof are exposed; the conductors are insert-molded in a frame in a state in which terminals thereof are exposed; and the exposed terminals of the mold modules are connected to the exposed terminals of the insert-molded conductors and the mold modules are firmly fixed to the heat sink.
    Type: Application
    Filed: May 20, 2011
    Publication date: December 19, 2013
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Isao Sonoda, Yoshihito Asao, Mamoru Watanabe, Katsuhiko Omae, Tetsushi Watanabe
  • Publication number: 20130328419
    Abstract: A spindle motor including a base, a bearing housing supported on the base, a bearing provided within the bearing housing, a rotating shaft rotatably supported by the bearing, a stator including a core fixed to the bearing housing and coils wound around the core, a rotor including a rotor yoke fixed to the rotating shaft, and a first magnet installed on the rotor yoke facing the stator, a turntable positioned on the rotor yoke, rotating together with the rotating shaft, a center guide member coupled to the rotating shaft at an upper side of the turntable, an elastic member disposed between the turntable and the center guide member for elastically supporting the center guide member.
    Type: Application
    Filed: July 22, 2013
    Publication date: December 12, 2013
    Applicant: LG INNOTEK CO., LTD.
    Inventors: Jae Hyun PARK, Jin Seung YOO
  • Publication number: 20130328418
    Abstract: In the case of an electric motor having a rotor and a stator, which has at least one first and one second stator segment (210, 220) which are each provided at least in places with a plastic sheath (410, 520), the plastic sheaths (410, 520) of the first and second stator segments (210, 220) are connected to one another via at least one plastic connecting element (422, 424), which is welded at least to the plastic sheath (520) of the second stator segment (220).
    Type: Application
    Filed: May 24, 2011
    Publication date: December 12, 2013
    Applicant: ROBERT BOSCH GMBH
    Inventors: Andreas Ewert, Jochen Weidlich, Martin Gutmann, Bjoern Nommensen
  • Patent number: 8604660
    Abstract: The invention relates to a stator of an electrical machine, with at least one stator tooth and a coil wound outside of the stator, which coil has been pushed onto the stator tooth substantially radially. It is provided that the coil (4) is held radially on the stator tooth (2) by means of at least one form-fitting connection (13). Furthermore, the invention relates to an electrical machine with such a stator (1).
    Type: Grant
    Filed: August 11, 2008
    Date of Patent: December 10, 2013
    Assignee: Robert Bosch GmbH
    Inventor: Armin Elser
  • Patent number: 8604656
    Abstract: An electric submersible pump (ESP) motor includes a polymer or ceramic component made by curing a thermosetting polymer in situ in the ESP motor, wherein the thermosetting polymer is selected from the group consisting of cyanate ester, bismaleimide, polyimide, benzoxazine, a preceramic polymer, and a mixture thereof, or the thermosetting polymer is a hybrid polymer having less than 50% by weight of an epoxy component and a second component selected from the group consisting of cyanate ester, bismaleimide, polyimide, benzoxazine, a preceramic polymer, and a mixture thereof.
    Type: Grant
    Filed: December 17, 2009
    Date of Patent: December 10, 2013
    Assignee: Schlumberger Technology Corporation
    Inventors: William Goertzen, Gregory H. Manke, Aider Matarrita, Melissa Ver Meer
  • Publication number: 20130313921
    Abstract: A stator has a plurality of segments connected with connectors to define a core for the stator. Each of the segments comprises a plurality of laminations arranged side by side forming a lamination stack with axially opposite sides. The lamination stack has an end cap abutting an axial side of the lamination stack. The end cap has first and second posts extending axially therefrom. At least one of the posts defining a wire path for wire wound around the stack. Each of the connectors comprises a bridge portion. The bridge portion has openings dimensioned to receive the posts in a manner that the connector is removably attachable to the post of the end cap of a segment and the post of the end cap of an adjacent segment. The connector has an insulator portion projecting from the bridge portion. The insulator portion extends between adjacent segments when the connector is removably attached to adjacent segments.
    Type: Application
    Filed: May 15, 2013
    Publication date: November 28, 2013
    Applicant: Baldor Electric Company
    Inventors: Matthew D. Hoffman, Robert J. Mantey, Douglas H. Sudhoff, Lorenzo Mazza, Bryan L. Paxton, Jeffrey L. Davis, Daniel Scott Dorsch
  • Publication number: 20130307353
    Abstract: A magnet-type power generator includes a rotor having a bowl-shaped flywheel and plural magnets disposed on an inner circumferential surface of the flywheel so as to be spaced at a predetermined interval, and a stator having plural cores facing the magnets and each having a coil wound therearound. The magnets include a bonded magnet integrally molded with the flywheel.
    Type: Application
    Filed: September 13, 2012
    Publication date: November 21, 2013
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventor: Toshio MAEKAWA
  • Patent number: 8587168
    Abstract: An electric device includes: a circuit board arranged in cooling medium in a housing and having an electric element and an external coupling electrode, wherein the electric element is sealed in and mounted in a substrate, and the electric element is electrically coupled with the external coupling electrode; an external coupling terminal electrically coupled with the external coupling electrode; and a separation member for separating the external coupling terminal and a connection portion between the external coupling electrode and the external coupling terminal away from the cooling medium.
    Type: Grant
    Filed: March 11, 2011
    Date of Patent: November 19, 2013
    Assignee: DENSO CORPORATION
    Inventors: Masao Yamada, Satoshi Yoshimura, Tetsuo Fujii
  • Publication number: 20130300223
    Abstract: A molded structure according to the present invention is formed from a molding resin which includes at least a thermosetting resin, a thermoplastic resin, and an electrically insulating inorganic filler subjected to a surface treatment with a coupling agent, and which contains the coupling agent in an amount 0.5 times to 2 times the amount of the coupling agent necessary to cover the total surface area of the inorganic filler. Thus, the adhesion is improved between the resin and the inorganic filler in the molding resin, and a molded structure can be achieved which has a high thermal conductivity and high dimensional stability.
    Type: Application
    Filed: January 17, 2012
    Publication date: November 14, 2013
    Applicant: PANASONIC CORPORATION
    Inventors: Kenji Kondo, Masanori Morita, Seiji Kurozumi
  • Publication number: 20130300225
    Abstract: A molded motor of the present invention comprises: a stator having a stator core wound with a winding and molded with a molding resin; a rotor including a rotary body having a ferrite resin magnet which is a permanent magnet, disposed in a circumferential direction and confronting the stator, and a shaft penetrating through an axial center of the rotary body; a pair of bearings supporting the shaft; a pair of electrically-conductive brackets securing the bearings; and conductive pins which is connecting parts that electrically connect the pair of brackets. The rotor is provided with a first dielectric layer between the shaft and an outer peripheral surface of the rotary body, and a second dielectric layer between the shaft and the bearings.
    Type: Application
    Filed: January 26, 2012
    Publication date: November 14, 2013
    Applicant: PANASONIC CORPORATION
    Inventors: Seiji Kurozumi, Keisaku Nakano, Masanori Morita
  • Publication number: 20130300221
    Abstract: An electric motor has a stator in which an armature is disposed. The armature has a shaft. One of the stator or the armature includes a lamination stack having slots in which magnet wires are wound, the magnet wires having a coating of heat activated adhesive. There is further provided plastic molded around the magnet wires with heat of the plastic activating the heat activated adhesive on the magnet wires during molding of the plastic to bond the magnet wires together.
    Type: Application
    Filed: November 1, 2012
    Publication date: November 14, 2013
    Inventors: Hung T. Du, Brandon L. Verbrugge, Joshua F. West, Michael R. Sell, Richard T. Walter, David J. Smith, Earl M. Ortt, John C. Stone, Howard T. White
  • Publication number: 20130300224
    Abstract: A mold structure according to the present invention is formed from a molding resin including at least a thermosetting resin, an electrically insulating inorganic filler containing at least a metal hydrate, and a dispersant. Thus, it is possible to improve the dispersibility of the inorganic filler in the molding resin, and increase the filling property and fluidity of the inorganic filler. As a result, the molding resin which has a high thermal conductivity and excellent moldability can achieve a mold structure with high radiation performance.
    Type: Application
    Filed: January 17, 2012
    Publication date: November 14, 2013
    Applicant: PANASONIC CORPORATION
    Inventors: Masanori Morita, Kenji Kondo, Seiji Kurozumi
  • Publication number: 20130300222
    Abstract: A motor drive device employed, for example, in an electric power steering apparatus for vehicle, achieves a reduction not only in size but also in vibration and noise at the same time. At least one of a motor drive control unit (30) and a motor (10) is provided with at least two screw holes (53) for fixation to a gear (speed reducer) of an electric power steering apparatus. Let L1 be a maximum value of a distance between center points of the screw holes (53) and L2 be a distance between an end face (D) of a stator iron core (12) in an axial direction on a farther side from the gear and an attachment surface (C) attached to a gear side, then a value of L1 is equal to or greater than a value of L2.
    Type: Application
    Filed: May 20, 2011
    Publication date: November 14, 2013
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Masatsugu Nakano, Satoru Akutsu, Yoshihito Asao
  • Patent number: 8581453
    Abstract: A fan casing, webs, and a motor casing are integrally formed of a resin material by injection molding to configure a fan housing. An electrically grounded electromagnetic noise guard and a bearing holder to which an outer race of a ball bearing are electrically connected by an electrically-conducting path member provided in the fan casing by means of insert molding. Thus, the ball bearing may sufficiently be prevented from suffering electric corrosion in an electric fan of which a fan housing is made of an insulating resin.
    Type: Grant
    Filed: March 3, 2010
    Date of Patent: November 12, 2013
    Assignee: Sanyo Denki Co., Ltd.
    Inventors: Yoshihiro Wada, Michinori Watanabe
  • Publication number: 20130293036
    Abstract: A mold motor includes a mold stator, a rotor, and a bracket. The mold stator includes a first bearing housing section formed of thermosetting resin, one bearing of the rotor fitting in one end in an axial direction of the first bearing housing section, an opening section formed at an end on the opposite side of the bearing housing section, and a bracket press-fitting section formed near the opening section and having a diameter larger than a stator inner diameter. The bracket includes a bracket resin section configuring a second bearing housing section in which the other bearing of the rotor fits and a bracket sheet metal section press-fit into the bracket press-fitting section of the mold stator. In the bracket, the bracket resin section and the bracket sheet metal section are integrally molded.
    Type: Application
    Filed: December 28, 2011
    Publication date: November 7, 2013
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Mineo Yamamoto, Kazunori Sakanobe, Hiroyuki Ishii, Hiroki Aso, Kazuya Omura, Yasumasa Takeuchi, Katsumi Shibayama, Hitoshi Mochizuki
  • Patent number: 8575795
    Abstract: A stator includes an annular substrate, an outer-diameter portion of the substrate provided at a tip end of an outer-diameter leg of a bobbin, the substrate having a smaller inner diameter than an inner diameter of the stator core. When stator resin provides sealing, the outer-diameter portion of the substrate can be supported by the tip end of the outer-diameter leg of the bobbin, and an inner-diameter portion of the substrate can be supported by a mold. Accordingly, even when the moment of inertia of a molded motor is increased, the substrate can be prevented from being deformed by a molding pressure with the stator resin, without the area of the substrate being decreased.
    Type: Grant
    Filed: July 8, 2009
    Date of Patent: November 5, 2013
    Assignee: Kabushiki Kaisha Yaskawa Denki
    Inventors: Kenichi Aoki, Fumihiko Kitani, Tomonori Hirose
  • Patent number: 8575796
    Abstract: A heavy-duty stator core and coil assembly that can accommodate severe input voltage spiking and harmonics may include a coat of varnish applied to the stator core and coil assembly by steps of dipping the stator core and coil assembly end-first along a longitudinal axis into a first tank of liquid epoxy resin having a relatively low viscosity, baking the coating, inverting the stator core and coil assembly and applying a second coat of varnish in the same manner, then dipping the core and coil assembly into a second tank having a liquid epoxy resin of a relatively high viscosity, then baking the second coat.
    Type: Grant
    Filed: February 26, 2010
    Date of Patent: November 5, 2013
    Assignee: Dayton-Phoenix Group, Inc.
    Inventors: Joseph A. Zahora, Johnny D. Yu, Bradley S. Bryant
  • Publication number: 20130285481
    Abstract: The invention intends to improve a stator which is detachably installed to an outer peripheral portion of a can accommodating a rotor. The stator is integrally formed with a resin mold by arranging a stator assembly (110) within metal molds (300, 310) and injecting a molten resin (P1) from a gate (G1) at one position. An annular plate (160) is mounted to an upper portion of the stator assembly (110) so as to prevent the molten resin from intruding into magnetic pole teeth (120a, 122a), and prevent a weld line from being generated in an outer peripheral surface of the resin mold.
    Type: Application
    Filed: March 18, 2013
    Publication date: October 31, 2013
    Applicant: FUJIKOKI CORPORATION
    Inventors: Masaya SATOU, Satoshi UEHARA
  • Publication number: 20130285482
    Abstract: A rotor resin assembly of a rotor of an electric motor includes a rotor magnet including a substantially cylindrical yoke molded from thermoplastic resin containing a soft magnetic material or ferrite and a resin magnet integrally formed in the outer circumference of the yoke, a position detection magnet arranged at one end in the axial direction of the rotor magnet, and a substantially doughnut-like rotor core arranged in the inner circumference of the rotor magnet and formed by laminating a predetermined number of electromagnetic steel plates. The rotor magnet, the position detection magnet, and the rotor core are integrally formed by resin. A shaft is inserted into an inner diameter section of the rotor core, and the rotor resin assembly is caulked by a jig to form a recess in the vicinity of the inner diameter sections of both end faces of the rotor core and assembled to the shaft.
    Type: Application
    Filed: January 6, 2012
    Publication date: October 31, 2013
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Mineo Yamamoto, Kazunori Sakanobe, Hiroyuki Ishii, Hiroki Aso, Atsushi Matsuoka, Noriaki Matsunaga
  • Publication number: 20130277131
    Abstract: The invention relates to an electric disk-armature motor including at least one stator in the form of a disk, at least one rotor in the form of an armature disk which is mounted rotatably about an axis of rotation with respect to the stator and/or a motor housing. The rotor and the stator are oriented parallel to one another and are spaced apart from one another by a gap. An end side of the rotor, which end side faces the stator, has a multiplicity of permanent magnets polarized in the axial direction, which are arranged in the form of a ring around the axis of rotation. A north pole and a south pole faces the stator alternately in the tangential direction, and wherein the stator (11) has a multiplicity of coil elements. The invention also relates to an electric bicycle or pedelec comprising such a disk-armature motor.
    Type: Application
    Filed: November 7, 2011
    Publication date: October 24, 2013
    Applicant: STEFFEN SOEHNER GMBH
    Inventor: Christian Becker
  • Publication number: 20130278085
    Abstract: Provided is a high-speed rotating spindle motor that achieves a smooth circulation of oil without any congestion regions of oil on an oil path taking place in a bearing housing.
    Type: Application
    Filed: January 5, 2012
    Publication date: October 24, 2013
    Applicant: SAMHONGSA CO., LTD.
    Inventors: Jong Hoon Lee, Chang Seob Song
  • 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: 20130270931
    Abstract: A rotary machine capable of carrying out efficient cooling without increasing costs or deteriorating performance is provided. A motor 1 serving as the rotary machine has a rotor 20 configured to be rotatable around a rotary shaft 10, a stator 30 having a stator core 31 arranged around the rotor 20 and a coil 32 attached to the stator core 31 so that a coil end part 32a protrudes from each end of the stator core 31, mold members 33a and 33b formed at both ends of the stator core 31, to cover base parts of the coil end parts 32a, and partition parts 42b and 43b attached in contact with the mold members 33a and 33b, to separate a space S1 in which the rotor 20 is arranged from a space S2 in which the coil end parts 32a are arranged.
    Type: Application
    Filed: April 22, 2011
    Publication date: October 17, 2013
    Applicant: IHI Corporation
    Inventors: Norihisa Handa, Satoru Ohashi, Masahiro Tanida, Shusaku Yamasaki
  • Publication number: 20130270930
    Abstract: A rotor for an outer rotor-type motor is provided. The rotor includes a metallic coupler and a polymeric frame molded over at least part of the metallic coupler.
    Type: Application
    Filed: June 12, 2013
    Publication date: October 17, 2013
    Inventors: Daniel E. Bailey, Daniel E. Hilton, Philip S. Johnson, Gregory M. Levine
  • Patent number: 8552602
    Abstract: A molded motor including a stator including a housing formed by integrally molding an armature winding and a printed circuit board with resin containing a fibrous reinforcing material and filler; a magnet rotor rotatably disposed to face the stator; and a plurality of lead wires led out to outside. The printed circuit board is provided with a plurality of lands connecting the lead wires by soldering, and a round hole between the plurality of lands filled with the resin, and the reinforcing material is oriented in a board thickness direction of the printed circuit board.
    Type: Grant
    Filed: October 26, 2009
    Date of Patent: October 8, 2013
    Assignee: Panasonic Corporation
    Inventor: Masayuki Takada
  • Patent number: 8552601
    Abstract: An electric motor includes a stator including stator steel core (11) around which a coil is wound; a rotor which includes rotating body (30) that holds a plurality of permanent magnets (32) in the circumferential direction to face the stator, and shaft (16) that fastens rotating body (30) so as to penetrate the center of rotating body (30); a bearing (15) for supporting shaft (16); and bracket (17) for fixing bearing (15), wherein dielectric layer (50) is provided between shaft (16) and the outer periphery of rotating body (30).
    Type: Grant
    Filed: March 12, 2009
    Date of Patent: October 8, 2013
    Assignee: Panasonic Corporation
    Inventors: Hirofumi Mizukami, Akihiko Watanabe
  • Patent number: 8552604
    Abstract: A power module of a drive unit of an electric motor is formed by inserting multiple power transistors, which supply a drive current to a coil wound around a stator or a rotor, and wirings connecting the power transistors in a resin, which is formed in the shape of a plate, by resin molding. Electronic components such as aluminum electrolytic capacitors, a choke coil and a first connector are provided in a board thickness direction of the power module and are electrically connected with the wirings of the power module. Thus, a construction for electrically connecting the wirings of the power module formed by the resin molding and the electronic components can be simplified.
    Type: Grant
    Filed: April 15, 2011
    Date of Patent: October 8, 2013
    Assignee: Denso Corporation
    Inventors: Naoki Matsuda, Masashi Yamasaki
  • Patent number: 8552600
    Abstract: Embodiments of the invention provide an electric machine module and a method for cooling an electric machine module. The electric machine module includes an electric machine including a stator with stator end turns, a liquid-cooled housing at least partially enclosing the electric machine, and a potting material in contact with and at least partially surrounding the stator end turns. The method includes potting at least some of the stator end turns with the potting material to provide a thermally-conductive path from the stator end turns to the housing and circulating a coolant through the housing to at least remove heat energy conducted from the stator end turns to the housing.
    Type: Grant
    Filed: September 15, 2010
    Date of Patent: October 8, 2013
    Assignee: Remy Technologies, LLC
    Inventor: Michael D. Bradfield
  • Publication number: 20130257183
    Abstract: A stator portion of a molded motor includes a plurality of windings, a wiring board, and a resin arranged to cover at least a surface of each winding. The wiring board includes a through hole extending through the wiring board in an axial direction. The through hole is arranged axially opposite to any winding to facilitate discharge of air out of a gap between the wiring board and the winding during a molding process, while the distance between the wiring board and each opposed winding is short in the stator portion of the molded motor. The resin is thus continuously arranged in gaps between the windings and the gap between the wiring board and each opposed winding.
    Type: Application
    Filed: February 12, 2013
    Publication date: October 3, 2013
    Applicant: NIDEC CORPORATION
    Inventor: Tomoyoshi YOKOGAWA
  • Publication number: 20130257184
    Abstract: A rotor unit includes a rotor core made of laminated steel sheets that are vertically laminated, and a holder made of resin. The rotor core and the holder are fixed together through insert molding. For this reason, the process of manufacturing the rotor core and the holder is shortened. Additionally, in the outer peripheral surface of the rotor core, a portion of resin that defines the holder is present between the plurality of steel sheets that defines the rotor core. For this reason, the fixing strength of the rotor core and the holder improves. Additionally, since a separation between the rotor core and the holder is prevented, magnets can be easily press-fitted.
    Type: Application
    Filed: April 2, 2012
    Publication date: October 3, 2013
    Applicant: NIDEC CORPORATION
    Inventors: Hidehiro Haga, Tatsuro Kawamoto, Shunsuke Murakami
  • Publication number: 20130257185
    Abstract: A rotary electric machine according to the present invention is a rotary electric machine including: a heat sink mounted with a power circuit; a housing for containing incorporated components; and a frame for containing a rotor and a stator core; the heat sink, the housing, and the frame being coaxially and integrally configured. In the rotary electric machine, there are included a lead frame connected to a power circuit, and a connector portion connected to the lead frame and being for connecting to the outside; the heat sink is made of metal; and the housing is made of resin.
    Type: Application
    Filed: April 20, 2011
    Publication date: October 3, 2013
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Satoru Akutsu, Isao Sonoda, Yoshihito Asao
  • Patent number: 8546989
    Abstract: An electric motor includes a stator that has a stator winding wound on a stator iron core; a rotor having a rotating body with a rotating shaft in the center; a bearing for journaling the rotating shaft; and two conductive brackets for fixing the bearing. The rotating body holds a magnet such that the magnet faces the stator, and is fastened to the rotating shaft penetrating through the center of the rotating body. In the rotating body, a dielectric layer is formed between the rotating shaft and the outer circumference of the rotating body. The dielectric layer has a polygonal shape with the rotating shaft in the center. An electric device includes the thus configured electric motor.
    Type: Grant
    Filed: February 28, 2012
    Date of Patent: October 1, 2013
    Assignee: Panasonic Corporation
    Inventors: Akihiko Watanabe, Yoshinori Isomura, Tatsuo Maetani, Hiroki Sato
  • Publication number: 20130249329
    Abstract: A molded motor includes an annular yoke part, a stator including a stator core having, a plurality of teeth parts extending from an inner peripheral surface of the annular yoke part toward a center thereof, an insulator covering the stator core, an outer shell formed around the stator core and the insulator and made of resin, a rotor coaxially disposed at the center of the stator, a connecting wire guide provided on the insulator to stand in an axial direction of the stator core at a position corresponding to an engagement recess of an outer peripheral part of the outer shell, and a connecting wire guided by the connecting wire guide. A crimped part of a bracket adapted to be attached to an end face of the stator is engaged with the engagement recess when a part of a side end face of the bracket is crimped and secured.
    Type: Application
    Filed: March 21, 2013
    Publication date: September 26, 2013
    Applicant: FUJITSU GENERAL LIMITED
    Inventors: Masaki YAMADA, Masanori MURAKAMI, Tsugiyoshi ONO
  • Publication number: 20130249328
    Abstract: A stator for an electric motor includes a stator core including a yoke and a plurality of arms extending radially from the yoke. The stator includes an end piece secured to a radial end of each arm of the stator core. The stator core has a length defined along a longitudinal axis of the stator, and each end piece has a length defined along the longitudinal axis of the stator. The length of each end piece is greater than the length of the stator core.
    Type: Application
    Filed: March 23, 2012
    Publication date: September 26, 2013
    Applicant: WHIRLPOOL CORPORATION
    Inventors: LUIZ V. DOKONAL, EVANDRO J. MEURER, MARCELO N. SCHLICKMANN, ORLANDO STARKE, RODRIGO S. TEIXEIRA
  • Publication number: 20130249327
    Abstract: A stator for an electric motor that includes a plurality of stacked laminations and a polymeric shell coupled to the plurality of laminations. Each lamination includes an annular plate having a plurality of notches defined therein. Each notch has an end positioned between the side walls of the annular plate. A plurality of teeth extend from one side wall of the annular plate. Each lamination includes a first slot defined at the first end of each notch and a second slot spaced apart from the first slot, the first slots of the laminations are aligned to define a first plurality of passageways, the second slots of the laminations are aligned to define a second plurality of passageways, and the polymeric shell includes a plurality of support beams that extend through the first plurality of passageways and the second plurality of passageways.
    Type: Application
    Filed: March 23, 2012
    Publication date: September 26, 2013
    Applicant: WHIRLPOOL CORPORATION
    Inventors: CHRISTIAN GIANNI, MARCELO N. SCHLICKMANN, ORLANDO STARKE, RICHARD S. WALLACE