Molded Plastic Patents (Class 310/43)
  • Publication number: 20130221770
    Abstract: An armature includes an insulator mounted on a tooth portion around which a conducting wire is wound. A pair of a first member and a second member, which are combined so as to abut each other, is provided. The first member includes a first end wall which covers an upper side end in the axial direction of the tooth portion and a pair of first side walls which partially cover both side portions of the tooth portion. A first overlap portion is provided on a tip portion of the first side wall. A plurality of ribs extending so as to be parallel or substantially parallel to the winding direction of the conducting wire is disposed on an outer surface of the first overlap portion.
    Type: Application
    Filed: December 17, 2011
    Publication date: August 29, 2013
    Applicant: NIDEC CORPORATION
    Inventor: Tomoyoshi Yokogawa
  • Patent number: 8519586
    Abstract: To prevent electrolytic corrosion from occurring by reliably establishing an electrical conduction between a motor output shaft and brackets. A first bracket 51 attached to one end part and a second bracket 52 attached to the other end part are electrically connected to each other via a conductive member 8 embedded in a molding resin part 21 of a stator 2.
    Type: Grant
    Filed: September 14, 2010
    Date of Patent: August 27, 2013
    Assignee: Fujitsu General Limited
    Inventors: Hidetaka Terakubo, Toshihiko Yamada, Takaoki Mori
  • Patent number: 8519558
    Abstract: A tool includes a nonmagnetic tool housing, a cylindrical rotor inside the tool housing and rotatable in response to a flow of pressurized fluid through the tool housing and magnets mounted in the rotor. A stator is positioned on the exterior of the tool housing, and is dimensioned to cooperate with the magnets to, upon rotation of the rotor, generate electrical current for supply to a load.
    Type: Grant
    Filed: April 27, 2010
    Date of Patent: August 27, 2013
    Inventor: Jon J. Leininger
  • Patent number: 8519589
    Abstract: A stator core is formed of a main core including a first segment core, second segment core, and plate body, and a third segment core (I-shaped core). A rotor is disposed in a rotor insertion hole of the stator core, and an output shaft of the rotor is supported by a bearing unit. A resin molded body covers a winding of an exciting section of the motor, a circuit wiring board, and a part of a power supply connecting body. The resin molded body also covers a part of the third segment core (I-shaped core). A rotary vane or the like is mounted near the tip of the output shaft, and a blower or the like is formed.
    Type: Grant
    Filed: March 3, 2011
    Date of Patent: August 27, 2013
    Assignee: Panasonic Corporation
    Inventors: Hiroshi Sasaki, Toshifumi Tsutsumi
  • Patent number: 8519582
    Abstract: An electric motor assembly. A stator includes a set of windings and has a first end, a second end, and an outer radial surface. A rotor includes a shaft having an axis. A first frame supports the shaft at a first axial position. A canopy substantially surrounds the first frame. The canopy includes a fluid inlet and a fluid discharge. A second frame supports the shaft at a second axial position and includes at least one fluid outlet. A chute is positioned downstream of the canopy fluid discharge. The chute directs fluid flow along the outer radial surface of the stator towards the fluid outlet. A fan is coupled to the shaft downstream of the fluid outlet for rotation with the shaft.
    Type: Grant
    Filed: September 29, 2010
    Date of Patent: August 27, 2013
    Assignee: Regal Beloit America, Inc.
    Inventors: Ngan Fai Leung, Stephen Thomas English, Matthew William Critchley, Janice Fitzgerald, Frank Edward Staigl, III, Joseph Henry, Barbara Mary Shanks, Stephanie Marie Belko
  • Publication number: 20130214620
    Abstract: In accordance with the present invention, a rotor of an electric motor including a rotor core, a plurality of magnets spaced apart from each other on an outer circumferential surface of the rotor core, and a cylindrical protective pipe surrounding the magnets is provided. The protective pipe has an inner diameter smaller than a diameter of a circumscribed circle passing through tops of outer surfaces of the magnets. A space defined by an inner surface of the protective pipe, the outer surfaces of the magnets and the outer surface of the rotor core is filled with resin, and the protective pipe is held so as to have a diameter larger than that of the circumscribed circle, due to injection pressure of the resin.
    Type: Application
    Filed: February 7, 2013
    Publication date: August 22, 2013
    Applicant: FANUC CORPORATION
    Inventor: FANUC CORPORATION
  • Publication number: 20130214621
    Abstract: A motor may include a motor main body in which a rotor may be accommodated on an inner side of a motor case, and an antireflection layer which may be matted and provided with a light-absorbing property and which may cover at least a part of an outer face of the motor case.
    Type: Application
    Filed: February 20, 2013
    Publication date: August 22, 2013
    Applicant: NIDEC SANKYO CORPORATION
    Inventor: Nidec Sankyo Coporation
  • Publication number: 20130214622
    Abstract: A motor structure includes a housing having a shaft tube receiving a shaft retaining assembly. The shaft tube includes a positioning member on an outer periphery thereof. A rotor includes a shaft rotatably extending through the bearing. A stator is mounted around the shaft tube, couples with the positioning member, and includes a bobbin having an abutting portion pressing a top face of the shaft retaining assembly by a free end thereof. Specifically, the positioning member is distant from the top face by a first distance in an axial direction of the shaft tube, the abutting portion is made of elastic material, the positioning member is distant from the free end by a second distance in an axial direction of the assembling hole is defined, and the second distance is smaller than the first distance when the stator is separate from the shaft tube.
    Type: Application
    Filed: April 3, 2013
    Publication date: August 22, 2013
    Applicant: Sunonwealth Electric Machine Industry Co., Ltd.
    Inventor: Sunonwealth Electric Machine Industry Co., Ltd.
  • Patent number: 8513843
    Abstract: An insulating housing for a motor terminal includes a plurality of electricity supply members each having a connector terminal for connection to a power supply and a coil terminal to which a motor coil is connected; and an insulating housing main body for insulating the plurality of electricity supply members from each other and holding the electricity supply members. The insulating housing main body integral with the electricity supply members is formed by insert-molding with the plurality of electricity supply members spaced in an insulating interval from each other and disposed on the same plane after bending, then the connector terminal is protruded within a connector insertion opening formed integral with the insulating housing main body, and the coil terminal is protruded onto the same plane as the peripheral surface of the insulating housing main body.
    Type: Grant
    Filed: April 2, 2009
    Date of Patent: August 20, 2013
    Assignee: Mitsubishi Electric Corporation
    Inventor: Hiroyuki Kinugawa
  • Publication number: 20130207488
    Abstract: A rotating electric machine comprising a rotor (2) comprising a body (34) on the periphery of which are installed conductors (36) forming the winding, and a stator (3) positioned around the rotor (2) comprising a magnetized structure extending along a circumference of the stator (3). The body (34) of the rotor (2) is made partially of plastic, in the region of the teeth which conventionally separate the notches near the air gap, on the periphery of the armature. A modified structure of magnets of Halbach type is made with magnets of NdFeB type to reduce the thickness of the stator (3), to increase the radius (R2) of the rotor (2) so as to position all the conductors (36) on the periphery of the body (34) of the rotor (2) on one and the same layer at a diameter of maximum value.
    Type: Application
    Filed: April 22, 2011
    Publication date: August 15, 2013
    Inventors: Nicolas Labbe, Philippe Tesson, Benoit Dupeux, Aurélien Vauquelin, Jean-Paul Vilain
  • Publication number: 20130187487
    Abstract: A brushless motor may comprise a rotor comprising a shaft, a back yoke fixed on the shaft, a permanent magnet disposed at an outer circumference of the back yoke and first and second resin portions. The first resin portion may be formed at one ends of the back yoke and the permanent magnet and the second resin portion may be formed at other ends. The first and second resin portions may be fixed the back yoke and the permanent magnet. A communication hole communicating one end side and another end side in the shaft axis direction may be formed through the back yoke or between the shaft and the back yoke. A third resin portion connecting with the first and the second resin portions may be formed within the communication hole. The first, second and third resin portions may be formed integrally.
    Type: Application
    Filed: January 18, 2013
    Publication date: July 25, 2013
    Applicant: AISAN KOGYO KABUSHIKI KAISHA
    Inventor: AISAN KOGYO KABUSHIKI KAISHA
  • Publication number: 20130187486
    Abstract: A rotor having an improved structure capable of achieving an enhancement in durability and a motor having the rotor are disclosed. The rotor is configured to co-operate with a stator in an electromagnetic manner such that the rotor rotates. The rotor includes a sleeve having a shaft hole, through which the motor shaft extends, rotor cores spaced apart from one another in a circumferential direction of the rotor, and at least one of permanent magnets disposed between adjacent ones of the rotor cores such that the permanent magnets are arranged in a radial manner about the sleeve. First and second cover plates are disposed at opposite sides of the permanent magnets in an axial direction. The first and second cover plates have plate holes respectively corresponding to the through holes of the rotor cores. The rotor cores and the first and second cover plates are coupled by fastening members.
    Type: Application
    Filed: January 16, 2013
    Publication date: July 25, 2013
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventor: SAMSUNG ELECTRONICS CO., LTD.
  • Publication number: 20130187485
    Abstract: In a rotating electrical machine of radial-gap type, a radial core, having number of winding slots of “m”, is constructed as an integral compacting type by compacted powder or as a split compacting type with compacted powder. The radial core has a thickness in an axial direction of winding thereof so as to become thinner toward outward from a central portion thereof, in which the “m” is integer number in a range of 4 to 12.
    Type: Application
    Filed: December 5, 2012
    Publication date: July 25, 2013
    Applicant: NIPPON PISTON RING CO., LTD.
    Inventor: NIPPON PISTON RING CO., LTD.
  • Publication number: 20130187484
    Abstract: A motor stator with heat dissipation structure for fan includes a silicon steel plate assembly having a plurality of magnetic-pole columns, on each of which at least one winding is wound, and a space is defined between any two adjacent magnetic-pole columns; a covering being a heat-conducting plastic material filled in the spaces while covering the silicon steel plate assembly and the windings; and a plurality of heat pipes being extended into or through the covering filled in the spaces, so that heat produced by the silicon steel plate assembly and the windings during operation thereof can be transferred to the covering, and the heat pipes can absorb the heat from the covering and dissipate the absorbed heat into ambient air. Therefore, the silicon steel plate assembly and the windings can have lowered temperature and the cooling fan can have upgraded heat dissipation characteristic.
    Type: Application
    Filed: January 20, 2012
    Publication date: July 25, 2013
    Inventors: Wen-Hao LIU, Chu-Hsien CHOU
  • Patent number: 8492939
    Abstract: A fan motor is provided. The fan motor includes a case having a cylindrical bearing housing, and a base unit fixing the cylindrical bearing housing; a pair of bearings fitted into the cylindrical bearing housing; a stator which has a wound coil and a bottom portion to which a PC board including a motor driving circuit and a lead wire for supplying the motor driving circuit with electrical current is fixed; a shaft supported by the pair of bearings; a rotor which faces the stator and is fixed to the shaft, and which has a magnet; and an impeller which is fixed to an outer peripheral portion of the rotor, and has plural blades. The stator, the PC board and the lead wire are molded by epoxy resin which has hardness of Shore D85 to D95 after curing and a glass transition temperature of 125° C. or higher.
    Type: Grant
    Filed: September 2, 2010
    Date of Patent: July 23, 2013
    Assignee: Minebea Motor Manufacturing Corporation
    Inventors: Takakazu Hasegawa, Seiichi Tsukutani
  • Patent number: 8492953
    Abstract: A small PMDC motor has a wound salient pole armature. The armature 22 has a winding guide 38 disposed within each winding tunnel 36 formed between adjacent salient poles of the armature. The winding guide 38 is arranged to separate the radially inner portion of the respective winding tunnel whereby windings 30 wound about the adjacent salient poles of the armature are restrained from entering into the opposite radially inner portion of the winding tunnel 36.
    Type: Grant
    Filed: June 28, 2007
    Date of Patent: July 23, 2013
    Assignee: Johnson Electric S.A.
    Inventors: James Ching Sik Lau, Duncan Yiu Lung Wong, Chi Hang Ngai
  • Publication number: 20130181550
    Abstract: A housing assembly for an electric motor having a rotor shaft rotatable about an axis includes a housing cover and a housing case. The housing cover defines a first bearing seat for rotatably supporting a first portion of the rotor shaft. The housing case defines a second bearing seat for rotatably supporting a second portion of the rotor shaft. At least one of the housing cover and the housing case includes a plurality of mounting lugs substantially circumferentially evenly spaced about the shaft axis for mounting the electric motor to a surface.
    Type: Application
    Filed: January 16, 2013
    Publication date: July 18, 2013
    Applicant: Regal Beloit America, Inc.
    Inventor: Regal Beloit America, Inc.
  • Patent number: 8487491
    Abstract: A stator for an electric motor has phase potential bars and an insulating retaining element. The insulating retaining element includes a first component configured to accommodate the phase potential bars and to insulate the phase potential bars electrically from one another. The insulating retaining element additionally includes a second component which is separate from the first component. The second component, in conjunction with the first component, forms a trough that borders on the phase potential bars.
    Type: Grant
    Filed: October 20, 2010
    Date of Patent: July 16, 2013
    Assignee: Robert Bosch GmbH
    Inventors: Armin Elser, Peter Marschall
  • Patent number: 8482172
    Abstract: A terminal module includes a ring-shaped rail having a groove extending in a circumferential direction, a bus bar fitted into the groove, and a connector portion having a connector terminal connecting the bus bar with an external wire. The rail has a phase determining hole for determining a phase of rotation of the rail about an axial direction.
    Type: Grant
    Filed: May 24, 2012
    Date of Patent: July 9, 2013
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Kei Sasaki, Yasumasa Goto, Norihiko Akao
  • Publication number: 20130169073
    Abstract: A side cover 82 which covers a side surface portion of an electric motor 7 is formed of a resin, and a lubricant is ejected from plural ejecting holes 95 of an oil path 90 formed in the side cover 82 to a stator 71 of the electric motor 7 so as to cool the stator.
    Type: Application
    Filed: October 5, 2010
    Publication date: July 4, 2013
    Applicant: HONDA MOTOR CO., LTD
    Inventors: Teruo Nagahama, Norikazu Kawai, Heisuke Kobayashi, Shinji Fujimoto, Atsuhiro Sakai, Seiichi Mogi, Hironori Mito
  • Publication number: 20130162063
    Abstract: The fixing resin composition for use in a rotor includes a thermosetting resin (A) containing an epoxy resin, a curing agent (B), and an inorganic filler (C), wherein the content of the inorganic filler (C) is equal to or more than 50% by mass, based on 100% by mass of the total content of the fixing resin composition.
    Type: Application
    Filed: August 29, 2011
    Publication date: June 27, 2013
    Applicant: SUMITOMO BAKELITE CO., LTD.
    Inventor: Hideaki Sasajima
  • Publication number: 20130162062
    Abstract: A power tool is provided, including a housing, a permanent magnet electric motor in the housing, and an output member coupled to the electric motor. The electric motor includes a rotor and a stator. The stator includes a lamination stack of identically-shaped laminations with a North pole and a South pole. The stator also includes an end cap arranged at one end of the lamination stack. The end cap includes a polarity keying feature in an outer surface therein at a predetermined position with respect to one of the North pole or the South pole to identify a polarity of the stator.
    Type: Application
    Filed: December 18, 2012
    Publication date: June 27, 2013
    Applicant: BLACK & DECKER INC.
    Inventors: Colin Crosby, Stephen Osborne, Jiaqi Zhang
  • Publication number: 20130162061
    Abstract: Disclosed herein is a switched reluctance motor including: a rotor part including a rotor core having a shaft inserted thereinto and a plurality of rotor poles formed to be protruded from the rotor core; a stator part formed by coupling stator cores each positioned at outer sides of the rotor poles while facing the rotor poles so that the rotor part rotates therein and independently manufactured by insert injection molding to each other; and a magnet coupled between the stator cores.
    Type: Application
    Filed: August 13, 2012
    Publication date: June 27, 2013
    Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Hae Jun Yang, Ki Young Lee, Se Joo Kim, Sung Tai Jung, Jung Kyu Yim
  • Patent number: 8471417
    Abstract: An inverter input terminal, a coil terminal for a U-phase coil, and an inverter ground terminal are arranged in this order and neighboring to one another to form a U-phase terminal group. An inverter input terminal, a coil terminal for a V-phase coil, and the inverter ground terminal are arranged in this order and neighboring to one another to forma V-phase terminal group. The inverter input terminal, a coil terminal for a W-phase coil, and an inverter ground terminal are arranged in this order and neighboring to one another to form a W-phase terminal group. Flow directions of electric current in the neighboring terminals are opposite to each other, so that inductance of inverter circuits can be decreased.
    Type: Grant
    Filed: May 4, 2011
    Date of Patent: June 25, 2013
    Assignee: Denso Corporation
    Inventors: Toshihiro Fujita, Hiroyasu Kidokoro, Hiromasa Hayashi
  • Patent number: 8461730
    Abstract: An energy conversion system is described and includes a cylindrical rotor having a mass and multiple magnets affixed on an outer face thereof; a cylindrical stator including a dielectric cylinder wound with copper wire in a predetermined configuration, the cylindrical rotor being placed within the cylindrical stator; and a rotatable shaft for rotating the rotor, the rotatable shaft being placed in the center of the cylindrical rotor. The system harvests environmental energy for lower power generation and accounts for non-mechanical sources of rotational resistance within the generator.
    Type: Grant
    Filed: May 12, 2010
    Date of Patent: June 11, 2013
    Assignee: Science Applications International Corporation
    Inventors: Steven C. Hench, Charles R. Fralick
  • Publication number: 20130140920
    Abstract: A stator assembly structure for an axial flux electric machine is designed. The back iron for each silicon steel disk stator is formed into a specific structure with tooth-like protrusions for allowing the same to be integrated with the disk-type stator seat, while the disk-type stator seat is made of a material suitable for casting or mold forming. A coil is mounted on the disk stator, and a stator assembly is achieved by integrating the stator, the coil and the stator seat. The stator and the disk-type stator seat of the stator assembly are manufactured by using a one-piece cast or one-piece mold forming method so as to enable the contact surfaces of the stator and the stator seat to engage with each other even more tightly, and consequently enable the heat generated from the coil to be transmitted rapidly from the disk stator to the disk-type stator seat.
    Type: Application
    Filed: July 30, 2012
    Publication date: June 6, 2013
    Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Tseng-Te WEI, Shian-Hsuan Huang, Huan-Lung Gu, Shih-Ming Lo, Li-Ju Cheng
  • Publication number: 20130136635
    Abstract: A stator of a motor may comprise a first core, a second core and a resin layer. Each of the first core and the second core may comprise a yoke and three pieces of teeth configured to be disposed on the yoke. The resin layer may comprise a first void configured to contact a first opposing surface, opposing the second core, of the first core and contact a second opposing surface, opposing the first core, of the second core and a second void configured to contact a first part, extending parallel to a direction along which the first core opposes the second core, of a surface of the first core and contact a second part, extending parallel to the direction along which the first core opposes the second core, of a surface of the second core.
    Type: Application
    Filed: November 21, 2012
    Publication date: May 30, 2013
    Applicant: AISAN KOGYO KABUSHIKI KAISHA
    Inventor: AISAN KOGYO KABUSHIKI KAISHA
  • Patent number: 8450897
    Abstract: A rotor for motor may include a rotation shaft, a permanent magnet structured in a tube-like shape and fixed to an outer peripheral side of the rotation shaft, and a sleeve which is structured in a tube-like shape, disposed between an outer peripheral face of the rotation shaft and an inner peripheral face of the permanent magnet, and press-fitted and fixed to the outer peripheral face of the rotation shaft. The sleeve is retreated from an end part of the permanent magnet on one side in an axial direction to the other side in the axial direction so that a first ring-shaped recessed part is formed between the rotation shaft and the permanent magnet and the rotation shaft and the permanent magnet are fixed to each other with a first adhesive in the first ring-shaped recessed part. The rotor may be applied to a motor, preferably to a stepping motor.
    Type: Grant
    Filed: October 20, 2010
    Date of Patent: May 28, 2013
    Assignee: Nidec Sankyo Corporation
    Inventor: Hidekazu Yoneyama
  • Patent number: 8446059
    Abstract: A spindle motor includes a stator unit and a rotor unit supported to be rotatable with respect to the stator unit. The stator unit includes a stator, a base portion including a through hole, and a circuit board. The circuit board includes a connection portion to which a conductive wire from the stator is connected after passing through the through hole. A lower surface of the base portion includes a central region, a peripheral region, a recess portion, and a protrusion. A position of a distal portion of the protrusion is provided at a level higher than a level of a lowermost surface region of the central region and lower than a level of a bottom surface of the recess portion in a direction parallel or substantially parallel to a central axis.
    Type: Grant
    Filed: October 29, 2012
    Date of Patent: May 21, 2013
    Assignee: Nidec Corporation
    Inventors: Atsushi Yawata, Yasuhiro Suzuki, Shintaro Saeki, Takehito Tamaoka
  • Patent number: 8436497
    Abstract: A rotor for a motor includes a shaft having an outer periphery with an engaging portion. At least one coupling member includes an engaging hole. The shaft extends through the engaging hole of the at least one coupling member. The at least one coupling member is engaged with the engaging portion of the shaft by tight coupling. A plastic magnet envelops the shaft and the at least one coupling member by injection molding. The at least one coupling member prevents the plastic magnet from disengaging from the shaft, providing enhanced engaging effect while reducing structural complexity and enhancing assembling convenience.
    Type: Grant
    Filed: November 3, 2010
    Date of Patent: May 7, 2013
    Assignee: Sunonwealth Electric Machine Industry Co., Ltd.
    Inventors: Alex Horng, Hung Jen Chuang, Duo-Nian Shan
  • Publication number: 20130106207
    Abstract: A method for securing a plurality of permanent magnets about a perimeter of a rotor core is described that includes positioning the plurality of magnets with respect to the rotor core, the magnets including at least one feature formed at each side thereof, each feature opposing a feature formed in an adjacent magnet, and applying a material between the magnets that engages the features formed in the magnets to form a molded material, the material extending into a groove formed within the rotor core such that the molded material operates to engage the rotor core, the engagement of the molded material with the rotor core and the engagement of the molded material with the magnets operative to maintain a position of the magnets with respect to the rotor core.
    Type: Application
    Filed: October 31, 2011
    Publication date: May 2, 2013
    Inventors: Wei Song, Bryan Stout
  • Publication number: 20130106208
    Abstract: A rotor includes at least one of a group of one or more auxiliary magnets that are located between first and second claw poles in a circumferential direction and magnetized to be magnetic poles of the same polarity as the first and second claw poles and another group of one or more auxiliary magnets that are located on a rear side of the first and second claw poles and magnetized to have radially outer portions of the same polarity as the first and second magnetic poles. The auxiliary magnets are arranged to protrude beyond at least one of axial end surfaces of the first and second core bases.
    Type: Application
    Filed: October 29, 2012
    Publication date: May 2, 2013
    Applicant: ASMO Co., Ltd.
    Inventor: ASMO Co., Ltd.
  • Publication number: 20130099606
    Abstract: A stator includes a core body provided so as to contact a substantially cylindrical peripheral-wall inner surface of a frame and having a stator coil wound thereupon, and a mold portion in which a coil end of the stator coil is molded out of resin. A gap is provided between the peripheral-wall inner surface and the mold portion.
    Type: Application
    Filed: October 17, 2012
    Publication date: April 25, 2013
    Applicant: KABUSHIKI KAISHA YASKAWA DENKI
    Inventor: KABUSHIKI KAISHA YASKAWA DENKI
  • Publication number: 20130099604
    Abstract: Disclosed stator core for motor is comprising: more than one stator core body; a fixing unit, which is arranged at both ends of the stator core body and fixes the stator core body to be a cylindrical shape; a first insulator, which is integrally formed by mold in order to wrap a part of the stator core body and a side surface of plural teeth simultaneously; and a second insulator, which is arranged to have a form corresponding to the first insulator, and which is integrally formed by mold in order to wrap a part of the stator core body and a side surface of plural teeth simultaneously through the assembly with the first insulator, wherein the first simulator and the second simulator are separated from each other by the section wrapping the teeth during the bending process of the stator core body.
    Type: Application
    Filed: August 6, 2012
    Publication date: April 25, 2013
    Applicant: LG Innotek Co., Ltd.
    Inventor: Byeongjong Yu
  • Publication number: 20130099605
    Abstract: A bobbin with a terminal may include a winding part having a tube shape around which a conducting wire is wound, a terminal block which is formed on one end side in an axial direction of the winding part, and a plurality of terminals which is protruded from the terminal block in a direction substantially perpendicular to the axial direction of the winding part. A tip end of the terminal is formed with an inclined face which is inclined with respect to the axial direction of the winding part, and the inclined face is inclined so that the conducting wire abutted with the tip end of the terminal is slid down only toward the winding part when the conducting wire is to be wound around the winding part. The bobbin with a terminal may be utilized in a motor provided with a drive coil which is structured of the conducting wire.
    Type: Application
    Filed: September 25, 2012
    Publication date: April 25, 2013
    Applicant: NIDEC SANKYO CORPORATION
    Inventor: NIDEC SANKYO CORPORATION
  • Patent number: 8427017
    Abstract: A split stator is manufactured in such a manner that an adhesive is applied on a teeth part of a split core to form an adhesive layer, the split core is inserted in a lower die, a molten insulator material containing fibrous fillers is injected in the die, and an upper die is moved to form an insulator. In the insulator, the fibrous fillers are oriented in random directions, providing increased thermal conductivity.
    Type: Grant
    Filed: March 2, 2009
    Date of Patent: April 23, 2013
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Koji Nakanishi, Hideaki Takahashi
  • Publication number: 20130091902
    Abstract: A rotor for a motor comprising a frame having a hub for connecting the rotor to a shaft and a perimeter portion for interacting with a stator of the motor to cause the rotor to rotate about an axis of rotation. The frame comprises legs extending from an outer portion of the frame towards the hub, each leg having an inner end at the hub and an outer end at the outer portion of the frame, the inner ends of a first plurality of legs being spaced from the inner ends of a second plurality of legs in a direction along the axis of rotation.
    Type: Application
    Filed: June 27, 2011
    Publication date: April 18, 2013
    Applicant: FISHER & PAYKEL APPLIANCES LIMITED
    Inventors: Gregory Paul Hill, Russell Joseph Jackson
  • Publication number: 20130093267
    Abstract: The invention relates to a drive unit (10) for a windscreen wiper device in a vehicle with a multiple-section housing (11) with a drive motor (1), more particularly connected to the housing (11), which is at least indirectly controllable by means of conductor leads (17), more particularly in the form of punched components, whereby the conductor leads (17) end in a plug connection (14) of the housing (11) via which the drive motor (1) is externally electrically powered, whereby the housing (11), at least in the housing section (12; 12a to 12c) accommodating the conductor leads (17) is designed as an injection moulded component, in which the conductor leads (17) are at least partially overmoulded with the material of the housing section (12; 12a to 12c).
    Type: Application
    Filed: June 28, 2011
    Publication date: April 18, 2013
    Applicant: VALEO WISCHERSYSTEME GMBH
    Inventors: Werner Hartmann, Christof Heuberger, Mathias Kindel, Siegfried Stefani
  • Patent number: 8418350
    Abstract: A method for forming a secondary for a motor, for instance a linear drive motor, includes providing a sheet of highly magnetic permeable material with a plurality of slots extending through the sheet spaced along a length of the sheet. The slots define a plurality of teeth in the sheet and enable the sheet to be conformable to a mounting surface when forming the secondary of the motor. The top surface of the sheet has a plurality of pockets formed adjacent the plurality of slots. The pockets extend parallel to the width and are spaced along the length of the sheet. The pockets form a sensor operatively connected to a control of the motor. The sensor may be an encoder, and/or operatively connected to a control for controlling commutation of the motor, and/or setting positional limits, absolute positional information, and/or providing information about the sheet.
    Type: Grant
    Filed: July 11, 2011
    Date of Patent: April 16, 2013
    Assignee: Baldor Electric Company
    Inventors: Glenn S. Trammell, Rui Qiao
  • Patent number: 8415846
    Abstract: A stator unit for an electric motor, in particular an external rotor motor, includes a stator with a stator laminate stack and stator windings and a stator bushing and a stator flange which is formed at one end. A housing flange of a housing for accommodating a motor controller or the like is fastened on the stator flange, and with motor connection contacts, which run from the stator through through-openings in the housing flange, and with fastening means, which run through fastening holes in the housing flange and are fastened in the stator. A sealing disk is arranged between the stator and the housing flange. The sealing disk has sealing regions made from elastic plastic, which are arranged and designed in such a way that direct and/or indirect sealing of the through-openings and/or the fastening holes is provided against the ingress of moisture.
    Type: Grant
    Filed: January 29, 2010
    Date of Patent: April 9, 2013
    Assignee: EBM-Papst Mulfingen GmbH & Co. KG
    Inventors: Dieter Best, Matthias Maschke
  • Patent number: 8416523
    Abstract: A disk drive device comprises a hub on which a magnetic recording disk is to be mounted; a base rotatably supporting the hub through a bearing unit; a sintered core fixed to the base, the sintered core having a ring portion and nine teeth that extend radially from the ring portion; coils wound around nine teeth; and a cylindrical magnet fixed to the hub. The sintered core is formed by heat-treating an iron powder. At least one of (a) the surfaces of particles of the iron powder and (b) the surfaces of the sintered core is insulated.
    Type: Grant
    Filed: December 3, 2010
    Date of Patent: April 9, 2013
    Assignee: Alphana Technology Co., Ltd.
    Inventor: Tomoyuki Tashiro
  • Patent number: 8415840
    Abstract: A plastic package motor, including at least a plastic package stator (1) including at least a stator core, a stator winding, and a housing, a rotor (2), a rotating shaft (3), a bearing (4), and at least one end cover. The stator winding is wrapped on the stator core. The housing is disposed outside the stator core and the stator winding, and is made of resin. The rotor (2) is disposed in a cavity (5) of the housing. A bearing housing (9) is disposed at the center of the end cover and operates to receive the bearing (4). The bearing (4) operates to support the rotating shaft (3). A flanging (8) axially protrudes from an outer edge of the end cover. The flanging (8) is received in the cavity (5) and is fit with inner wall of the cavity (5) whereby implementing radial locating, and causing the bearing housing (9) of the end cover to partially enter the cavity (5).
    Type: Grant
    Filed: September 5, 2010
    Date of Patent: April 9, 2013
    Assignee: Zhongshan Broad-Ocean Motor Manufacturing Co. Ltd.
    Inventors: Xiang Liu, Ping Lu, Shuangchao Deng, Xiongcheng Wang
  • Patent number: 8415841
    Abstract: A fan motor for circulating cooled air including: a stator assembly having a stator core having teeth ends protruded annularly outwardly and coils wound on the teeth ends of the stator core and molded out of resin to have a donut-like shape having a bearing insertion hole formed to be passed vertically through the center thereof; a bearing assembly adapted to be insertedly fixed into the bearing insertion hole of the stator assembly; and a rotor fan assembly having a rotor having a cup-shaped case, a rotor shaft formed in the center of the case in such a manner as to be passed vertically through the center of the case, and magnetic poles formed along the inner periphery of the case, and a fan having a hub coupled to the top end periphery of the rotor shaft of the rotor and blades disposed around the hub.
    Type: Grant
    Filed: March 16, 2012
    Date of Patent: April 9, 2013
    Assignee: New Motech Co., Ltd.
    Inventors: Jeong Cheol Jang, Gyeong Su Park
  • Patent number: 8410652
    Abstract: The rotor assembly contains a number of polar anisotropic ring magnets sequentially stacked, a number of supporting rings within the stacked ring magnets, and an axle threading through the supporting rings. The ring magnets are of a same diameter and length. Each supporting ring contains three co-centric rings: an inner steel ring, a middle rubber ring, and an outer steel ring. The supporting rings are positioned with substantially equal spacing and with a gap away from each aperture of the stacked ring magnets, so that additional weight elements could be positioned and adhered within the gap. The periodic positioning of a number of supporting rings could significantly reduce the weight of the motor assembly with much improved steadiness. Additionally, the middle rubber rings of the supporting rings provide a buffer mechanism for absorbing vibration and noise reduction.
    Type: Grant
    Filed: April 13, 2011
    Date of Patent: April 2, 2013
    Assignee: Headline Electric Co., Ltd.
    Inventors: Chih-Yung Li, Kuo-Shu Hsu
  • Patent number: 8410643
    Abstract: An electric motor assembly including a stator assembly and a rotor assembly extending through the stator assembly. A first end cap is located adjacent to a first end of the stator assembly and includes a bearing insert supporting a first end bearing for receiving an end of a rotor shaft. A second end cap is located adjacent to a second end of the stator assembly. An endbell is formed separately from the second end cap and is positioned within the second end cap. The endbell supports a bearing for a second end of the rotor shaft. An overmold material extends through the stator assembly. The overmold material may form the first end cap, supporting the bearing insert therein, and extends within and substantially fills an annular space within the second end cap.
    Type: Grant
    Filed: July 22, 2010
    Date of Patent: April 2, 2013
    Assignee: Globe Motors, Inc.
    Inventors: Daniel L. Kottmyer, Robert J. Marks
  • Publication number: 20130076163
    Abstract: A motor is disclosed, the motor including a stator core formed with a cylindrical space at an inner surface and formed at an inner circumferential surface with a plurality of teeth protruding toward a center, a cylindrical rotor rotatably mounted at the space and formed with a plurality of pockets for inserting a permanent magnet, a rotation shaft coupled to the center of the rotor and receiving a rotation force generated by interaction between the stator core and the rotor, a nut member connecting the rotor to the rotation shaft by press-fitting the rotor at a periphery to an axial direction of the rotation shaft and press-fitting the rotation shaft at an inner circumferential surface to the axial direction of the rotation shaft, and a key unit inhibiting a slip between the rotor and the nut member.
    Type: Application
    Filed: May 30, 2012
    Publication date: March 28, 2013
    Applicant: LG Innotek Co., Ltd.
    Inventor: Byeongjong Yu
  • Patent number: 8405257
    Abstract: The invention relates to a DC current machine, in particular a DC current motor for driving a blower of a motor vehicle, with a pole housing forming the stator of the machine, a rotor that is rotatably mounted in two bearing plates, and with a brush support for supplying current to the rotor. According to the invention, a support is integrated into the brush support, with de-tensioning for the electrical connecting cables of the machine, which means that a secure fastening, de-tensioning, and insulation of the connecting cables is achieved without additional components and without additional expense in the assembly of the machine.
    Type: Grant
    Filed: February 6, 2008
    Date of Patent: March 26, 2013
    Assignee: Robert Bosch GmbH
    Inventors: Erik Maurer, Wolfgang Winkler, Markus Heidrich
  • Patent number: 8405268
    Abstract: A stator comprises a ferromagnetic core having teeth. The stator also comprises first and second insulator members. The first and second insulating members collectively encircle each of the teeth of the core. The first insulating member comprising a plurality of mounting bosses spaced circumferentially from each other about the axis. Each of the mounting bosses has first and second retaining surfaces. The first and second retaining surfaces face axially opposite directions from each other and are exposed and are unobstructed by the second insulating member.
    Type: Grant
    Filed: February 18, 2010
    Date of Patent: March 26, 2013
    Assignee: Nidec Motor Corporation
    Inventors: Daniel E. Bailey, Daniel E. Hilton, Gary E. Horst
  • Patent number: 8398377
    Abstract: An electric compressor provided with an integral inverter, incorporated with a motor and provided in a receiving space surrounded by a compressor housing with a motor drive circuit that includes the inverter. At least some of electric parts including the motor drive circuit are covered by a resin charged into the receiving space, and a part of a region which is in the receiving space and into which the resin can be charged is filled with a light-weight material different from the charged resin. In the structure of the resin covering section for such a motor drive circuit, the amount of resin charged is significantly reduced, and the entire compressor is reduced in weight and cost.
    Type: Grant
    Filed: February 13, 2008
    Date of Patent: March 19, 2013
    Assignee: Sanden Corporation
    Inventors: Takaaki Itabashi, Masahiko Osaka, Kou Tsukamoto
  • Patent number: 8400042
    Abstract: A ripple spring is provided having one or more layers laminated together, where the one or more layers form a symmetrical stack.
    Type: Grant
    Filed: June 20, 2011
    Date of Patent: March 19, 2013
    Assignee: General Electric Company
    Inventors: James Jun Xu, Elena Rozier, Thomas Robert Stonehouse, Lawrence Lee Sowers