Molded Plastic Patents (Class 310/43)
  • Patent number: 8953417
    Abstract: An electronic timepiece movement including a timepiece motor formed by an assembly comprising a frame made of non-magnetic material and a rotor housed in said frame; and method of manufacturing a motor of this type wherein the frame is first made with a lateral aperture, said frame including a first part and a second part each carrying a bearing, the first part or the first and second parts of the frame being elastically deformable. Next, the rotor is mounted in the frame through the lateral aperture therein by increasing the distance between the two bearings of the frame via the elastic deformation of the first part or of the first and second parts of said frame, said elastic deformation being provided in particular for the insertion of the two rotor pivots into the two respective bearings of the pre-formed frame.
    Type: Grant
    Filed: October 4, 2013
    Date of Patent: February 10, 2015
    Assignee: ETA SA Manufacture Horlogere Suisse
    Inventors: Philipp Gaechter, Marco Bettelini
  • Patent number: 8946968
    Abstract: A squirrel-cage rotor of an asynchronous machine includes a laminated core having grooves and positioned in fixed rotative engagement on a shaft, and a squirrel cage including short-circuit rods which are received in the grooves and have opposite front faces, and short-circuit rings which connect the short-circuit rods on the front faces. Shrink rings respectively surround the short-circuit rings at least radially outside and rest on the shaft. A pressure-resistant hardenable plastic is provided in a gap between the short-circuit rings and the shrink rings.
    Type: Grant
    Filed: July 20, 2012
    Date of Patent: February 3, 2015
    Assignee: Siemens Aktiengesellschaft
    Inventor: Hans-Werner Lipot
  • Patent number: 8946948
    Abstract: A motor includes a cover made of a resin material. The cover includes a first annular portion arranged to extend in an annular shape above coils, a side wall portion arranged to extend downward from an outer circumferential portion of the first annular portion, and a second annular portion arranged to extend radially outward or radially inward from a lower end portion of the side wall portion along an upper surface of a circuit board. The side wall portion is arranged to extend in an axial direction while filling in gaps between teeth on a radially inner side of radially outer end surfaces of the teeth. The coils are covered by the cover to be protected from dust, water droplets, etc. The radially outer end surfaces of the teeth are exposed from the cover, and are thus arranged to be in radial proximity to a rotor magnet.
    Type: Grant
    Filed: April 27, 2012
    Date of Patent: February 3, 2015
    Assignee: Nidec Corporation
    Inventors: Masaki Adachi, Yoshiaki Oguma, Yasuyuki Kaji
  • Patent number: 8941274
    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: Grant
    Filed: March 23, 2012
    Date of Patent: January 27, 2015
    Assignee: Whirlpool Corporation
    Inventors: Christian Gianni, Marcelo N. Schlickmann, Orlando Starke, Richard S. Wallace
  • Publication number: 20150022032
    Abstract: The invention describes a segment for an energy conversion system with windings, where the segment consists of at least two objects. The first object comprises coils, insulation and a polymer while the second object comprises at least a polymer and surrounds the first object. A novel feature of the present invention is that the consolidated coils play the role of mechanical support structure in the segment. A production method for a segment for an energy conversion system is also described.
    Type: Application
    Filed: January 23, 2013
    Publication date: January 22, 2015
    Inventor: Jörg Höyland
  • Patent number: 8937422
    Abstract: The magnetic iron core includes an amorphous foil strip wound to form the magnetic iron core. Preferably, the magnetic iron core is filled with resin, the resin being disposed by using a spacer between pluralities of windings of the amorphous foil strip. Preferably, the magnetic iron core is covered with resin integrated with and continuous to the resin disposed between pluralities of windings of the amorphous foil strip.
    Type: Grant
    Filed: October 22, 2010
    Date of Patent: January 20, 2015
    Assignees: Hitachi Industrial Equipment Systems Co., Ltd., Hitachi Appliances, Inc.
    Inventors: Yuji Enomoto, Zhuonan Wang, Ryoso Masaki, Hiromitsu Itabashi
  • Patent number: 8937412
    Abstract: An electric motor for a power tool includes a stator and an armature disposed in the stator. The armature includes a lamination stack having slots therein; an armature shaft extending coaxially through the lamination stack; a plurality of magnet wires wound in the slots of the lamination stack; a commutator disposed on the armature shaft to which ends of the magnet wires are electrically coupled; and thermally conductive plastic at least partially encasing the magnet wires, the thermally conductive plastic having a base polymer that is a blend of at least two polymers.
    Type: Grant
    Filed: November 1, 2012
    Date of Patent: January 20, 2015
    Assignee: Black & Decker Inc.
    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
  • Patent number: 8933602
    Abstract: To provide a stator structure or a stator manufacturing method capable of providing a short coil end, a stator structure includes a coil mounted on a stator core part and a resin-molded portion made of insulating resin that covers at least an end face of the core part and the coil. This structure includes a bus bar joined to a first coil terminal portion (a second coil terminal portion) formed in an end of the coil. The bus bar is placed so that a wide surface of the bus bar faces an end face of the resin-molded portion.
    Type: Grant
    Filed: June 26, 2009
    Date of Patent: January 13, 2015
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Koji Nakanishi, Hideaki Takahashi, Naoki Yoshida
  • Patent number: 8933604
    Abstract: A rotor core assembly that includes a magnet, a first end cap located at an end of the magnet, a second end cap located at an opposite end of the magnet, and a sleeve that surrounds the magnet and the end caps. The sleeve forms an interference fit with each of the end caps, and an adhesive is located between the magnet and the sleeve. Additionally, a method of manufacturing the rotor core assembly.
    Type: Grant
    Filed: August 18, 2011
    Date of Patent: January 13, 2015
    Assignee: Dyson Technology Limited
    Inventors: David Ions, Paul Theo Heyting, Matthew John Childe, David Michael Jones
  • Publication number: 20150008769
    Abstract: A stationary portion of a motor includes resin bodies including an inner and outer resin portion arranged between a tooth and a coil and between the tooth and an insulator. The outer resin portion covers circumferentially outer sides and axially outer sides of the coil. The inner and outer resin portions are continuous with each other through a connecting resin portion. The insulator includes an opening portion arranged to extend along circumferential side surfaces of the tooth. The inner resin portion is arranged to contact the circumferential side surfaces of the tooth and a conducting wire in the opening portion. Heat generated in the coil is transferred to the tooth through the resin body such that a large area of a path along which the heat is transferred from the coil to the tooth is secured.
    Type: Application
    Filed: September 14, 2012
    Publication date: January 8, 2015
    Applicant: NIDEC CORPORATION
    Inventors: Yoshihiro Uchitani, Yuji Tanaka, Tomoyoshi Yokogawa
  • Publication number: 20150001970
    Abstract: An electrical machine is provided, in particular an electric motor having a stator and also a rotor which is mounted such that it can rotate about a rotor axis and has a rotor body, wherein permanent magnets are arranged in holders of the rotor body. The permanent magnets being composed of a mixed material, wherein the mixture is set in such a way that the mixed material has a remanence field strength Br of between 0.6 Tesla and 1 Tesla and a coercive field strength Hcj of between 1300 and 2500 KA/m. Permanent magnets or composite bodies can be arranged in holders, and the permanent magnets or composite bodies can have a contour, the cross-sectional area of said contour which is situated perpendicular to the longitudinal axis being reduced within the respective holder in the direction of the radially further outer end of said holder.
    Type: Application
    Filed: September 12, 2014
    Publication date: January 1, 2015
    Inventors: Sunny ZHANG, Jin XU, Daniel FIEDERLING, Leszek Grzegorz SAWCZUK
  • Patent number: 8922071
    Abstract: Disclosed herein is a switched reluctance motor including: a shaft forming the rotation center of the motor; a rotor part rotatably coupled onto the shaft; a first stopper coupled to an upper portion of the rotor part in the axial direction to support the rotor part; and a second stopper coupled to a lower portion of the rotor part in the axial direction to support the rotor part, wherein the first stopper or the second stopper has a separate internal space formed at an inner side thereof. A weight member is coupled to the internal space, thereby making it possible to secure stable and reliable rotation balancing even at the time of high speed rotation of the motor.
    Type: Grant
    Filed: September 26, 2012
    Date of Patent: December 30, 2014
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventor: Yong Wan Cho
  • Patent number: 8922076
    Abstract: An encapsulated stator includes a driving module coupled to a shaft tube. The driving module includes a silicon steel plate unit. A coil unit is wound around the silicon steel plate unit. A jacket is mounted to an outer periphery of the silicon steel plate unit of the driving module. The jacket includes an inner face and an outer face opposite to the inner face. The inner face of the jacket faces the driving module. An encapsulant is bonded to the driving module, the jacket, and the shaft tube. The encapsulant encapsulates the driving module. The encapsulant partially encapsulates the outer face of the jacket.
    Type: Grant
    Filed: October 18, 2011
    Date of Patent: December 30, 2014
    Assignee: Sunonwealth Electric Machine Industry Co., Ltd.
    Inventors: Kun-Li Hsieh, Ming-Fu Wu
  • Publication number: 20140375150
    Abstract: A high-efficiency electric motor generally comprises one or more high-winding inductive coils and a rotor element coupled to one or more permanent magnets for creating rotation driven by the inductive coils, wherein the motor is optimized using dielectric materials for reduced loss. Reduced loss is achieved in several ways, for example by reducing eddy currents, hysteresis, and magnetic drag presented by ferrous and other metallic materials. Thus, the inductive coils generally comprise a dielectric core, as opposed to a metallic or ferrous core material since such materials can create magnetic drag, eddy currents, and hysteresis leading to power loss. Moreover, the motor housing and other motor components may comprise a dielectric material for further reduced energy loss and enhancement of motor efficiency. Other features related to a recycling circuit of certain embodiments wherein energy from a collapsing field of the coils is reused.
    Type: Application
    Filed: June 27, 2014
    Publication date: December 25, 2014
    Inventor: Reginald Miller
  • Patent number: 8914967
    Abstract: Method for producing a distributed lap winding for polyphase systems, in particular for alternators, wherein, in a first step, a chain of laps is formed with a linking direction, characterized in that, in a further step, at least one lap is rotated with its lap sides at right angles to the linking direction such that at least one lap side of one lap is arranged alongside at least one lap side of another lap such that the at least one lap side of one lap and the at least one lap side of another lap are arranged at a position which corresponds to a slot position.
    Type: Grant
    Filed: December 21, 2009
    Date of Patent: December 23, 2014
    Assignee: Robert Bosch GmbH
    Inventors: Klaus Herbold, Gerlinde Weber, Christoph Schwarzkopf, Helmut Kreuzer
  • Publication number: 20140368063
    Abstract: A motor may include a rotor having a permanent magnet on an outer peripheral face of a rotation shaft and a fixed body having a stator, an opposite-to-output side radial bearing member, and an opposite-to-output side end plate. The opposite-to-output side radial bearing member may be formed with a bearing part, a flange part, and a recessed part recessed toward an output side. An end part on the output side of the bearing part may be located on the output side relative to the end part on the opposite-to-output side of the stator, and an end part on the opposite-to-output side of the rotation shaft protruded toward the opposite-to-output side from the shaft hole may be accommodated in an inside of the recessed part and is located on the output side relative to the end part on the opposite-to-output side of the fixed body in the axial line direction.
    Type: Application
    Filed: May 30, 2014
    Publication date: December 18, 2014
    Applicant: NIDEC SANKYO CORPORATION
    Inventor: Kazumi FURUBAYASHI
  • Patent number: 8910371
    Abstract: A rotor for an induction motor includes a rotor core having first and second ends and a plurality of conductor bars. Each conductor bar has a respective first end extending beyond the first end of said rotor core. Each first exposed end has a respective enclosed opening. The rotor also includes an end ring comprising a casting of material flowed between the respective first ends of the conductor bars and through the respective closed openings.
    Type: Grant
    Filed: February 28, 2011
    Date of Patent: December 16, 2014
    Assignee: GM Global Technology Operations LLC
    Inventors: Richard M. Kleber, Thomas A. Perry, John S. Agapiou
  • Publication number: 20140361643
    Abstract: A method for manufacturing an electric motor stator, including: attaching a hollow bracket to an end of a hollow stator core and allowing a lead connected to the winding to pass through an opening formed in a peripheral surface of the bracket to take out the lead to an outside of the bracket; placing a core material inside the stator core and the bracket; attaching a sealing member to an outer peripheral surface of the bracket so as to block the opening while allowing the lead to pass through the through-hole; and filling a molten resin into an annular space between the stator core and the core material and between the bracket and the core material, to form a resin unit.
    Type: Application
    Filed: June 5, 2014
    Publication date: December 11, 2014
    Inventor: Youhei Kamiya
  • Publication number: 20140361644
    Abstract: A magnet wheel for an electric motor includes a shaft and a disk made of a plastic containing magnetic particles. The disk is arranged on a carrying hub and the carrying hub is pressed onto the shaft. The carrying hub is a slotted ring around which the disk is molded on by injection molding.
    Type: Application
    Filed: December 19, 2012
    Publication date: December 11, 2014
    Inventors: Lothar Schröder, Jan Weimar
  • Publication number: 20140354086
    Abstract: An electrical machine includes permanent magnets, a housing, a stator winding contained in the housing, and a cover. The cover includes at least two contactors and is connected to an electrical harness. The stator winding has at least two phase outputs, with at least one electrical connector being fixed to each phase output of the stator winding. Each of the electrical connectors has a contact surface intended to cooperate with a contact element. When the cover is installed on the housing, each contactor of the cover is in contact with a contact surface of a corresponding electrical connector fixed to a phase output of the stator winding, such that the electrical machine is connected to the electrical harness.
    Type: Application
    Filed: December 6, 2012
    Publication date: December 4, 2014
    Inventor: Bertrand Vedy
  • Publication number: 20140354087
    Abstract: A power module composite includes a power module (34) in which switching devices (32) included in an electric-power conversion circuit are molded, a driver module (37) that includes a control circuit (35) for controlling the switching devices (32) and is molded, a housing (39) containing the power module (34) and the driver module (37), and a heat sink (38) that is fixed to the housing (39) and refrigerates the switching devices (32); the power module 34 and the driver module 37 are mounted in that order on the heat sink (38) in such a way as to be superimposed on each other.
    Type: Application
    Filed: April 16, 2012
    Publication date: December 4, 2014
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Masaki Kato, Masahiko Fujita
  • Patent number: 8901787
    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: Grant
    Filed: November 1, 2012
    Date of Patent: December 2, 2014
    Assignee: Black & Decker Inc.
    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: 20140346903
    Abstract: Disclosed herein is a fan motor. In the fan motor according to the present invention which is an outer rotor type, a shaft having a fan fastened thereto is rotatably coupled to a bearing, the bearing is coupled to a bearing holder formed in a bracket, and the bracket is integrally configured of the bearing holder, a hub formed to be extended from the bearing holder to a perimeter, and a base formed to be extended from the hub to a perimeter, such that parts and assembling process may be effectively reduced. Meanwhile, the shaft is fastened with a stopper to prevent floating thereof, thereby improving driving stability and reliability.
    Type: Application
    Filed: October 14, 2013
    Publication date: November 27, 2014
    Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Jung Kyu Yim, Hae Jun Yang, Hyun Kag Park, Ki Young Lee
  • Patent number: 8896177
    Abstract: An interior permanent magnet motor in provided which is made up of a permanent magnet, and a rotor core of which an insertion aperture for the permanent magnet to be inserted thereinto is formed in the rotor core. Additionally, the interior permanent magnet motor includes a first end plate which is connected to the rotor core and of which a first seating portion for the permanent magnet is disposed thereto is formed in the first seating portion and a second end plate which is connected to the rotor core and of which a second seating portion for the permanent magnet is disposed thereto is formed in the second end plate.
    Type: Grant
    Filed: June 29, 2011
    Date of Patent: November 25, 2014
    Assignee: Hyundai Motor Company
    Inventor: Myunggyu Kim
  • Publication number: 20140339929
    Abstract: The invention relates to a laminated core, preferably a stator laminated core or a rotor laminated core (2), of an electric machine, in particular an electric fuel pump of a motor vehicle. The laminated core comprises slots (6), each of which has a slot insulation (7), and winding wires of at least one electric winding (10), said wires running in the slots (6). A plastic encapsulation (17) encases the laminated core together with the winding wires which run in the slots (6) at least in some regions. The plastic encapsulation (17) and the slot insulation (7) each consist of a thermoplastic, and the plastic of the slot insulation (7) has a melting point which is equal to, similar to, or lower than the melting point of the plastic of the plastic encapsulation (17) such that the encapsulation process causes the slot insulation (7) to melt, thereby bonding the slot insulation (7) to the plastic encapsulation (17). The invention further relates to a method for producing a laminated core and to an electric machine.
    Type: Application
    Filed: December 27, 2012
    Publication date: November 20, 2014
    Inventors: Oliver Himmel, Ursula Stucke, Joost Nowak, Ingo Buchholz, Alexis Spinner
  • Publication number: 20140333158
    Abstract: In a stator of an electric motor having a resin molding portion formed in an inner circumferential portion and an outer circumferential portion by means of injection molding, a partition member for partitioning the inner circumferential portion and the outer circumferential portion of the stator is provided in an axial end portion of the stator. Resin injected from the axial end portion flows in a bifurcated passage into the inner circumferential portion and the outer circumferential portion. The partition member may be provided with a resin passage which allows resin to flow from the axial end portion of the stator to the outer circumferential portion.
    Type: Application
    Filed: May 8, 2014
    Publication date: November 13, 2014
    Applicant: Fanuc Corporation
    Inventor: Takeshi Tamaki
  • Publication number: 20140332712
    Abstract: The present invention is an unsaturated polyester resin composition comprising an unsaturated polyester (a), a monomer (b) having one polymerizable carbon-carbon double bond, a monomer (c) having two or more of (meth)acrylate groups, a filler (d) having high thermal conductivity, a glass fiber (e), a low profile additive (f), a curing agent (g), and a polymerization inhibitor (h), wherein the ratio by weight of the ingredient (b) to the ingredient (c) is from 50:50 to 75:25 and the unsaturated polyester resin composition comprises 400 to 1400 parts by weight of the ingredient (d) based on the total 100 parts by weight of the ingredients (a), (b), and (c). This unsaturated polyester resin composition has excellent curing properties without losing storage stability which can be used to provide a cured product having a low mold shrinkage ratio and high thermal conductivity.
    Type: Application
    Filed: December 13, 2012
    Publication date: November 13, 2014
    Inventors: Shotaro Itami, Masashige Tanaka, Hiroyuki Majima, Ryujin Ishiuchi, Hiroaki Sugita
  • Publication number: 20140333157
    Abstract: A taper shaped steel rod-like member allows a cold press molding apparatus to reduce burrs generated in tooling without the use of lubrication while also extending tool live. The method and process is characterized by holding the preshaped processed material on a backside tool, while press-contacting the processed material to a free rotation roll rotating toward the tip element on the processed material, and shaping a taper shape by plastic-reshaping of the processed material.
    Type: Application
    Filed: August 9, 2013
    Publication date: November 13, 2014
    Applicant: SIGMA & HEARTS CO., LTD.
    Inventors: Motoharu Nuka, Takayo Noguchi, Tsuyoshi Muramatsu
  • Patent number: 8881362
    Abstract: In a stator manufacturing method to manufacture a stator in which divided-core assemblies are arranged in a cylindrical shape, each of which includes a divided-core member having a teeth portion on which a coil is wound. In this method, the divided-core assemblies are inserted in the cylindrical shape into a fixed mold, resin sheets containing glass fibers or carbon fibers are disposed on coil-end portions of the cylindrically-arranged divided-core assemblies, and a slide part of a movable mold applies pressure to and molds the resin sheets, thereby combining the divided core assemblies into a single unit. The movable mold is operated to position the divided-core assemblies in place by a cylindrical part and then apply pressure to and mold the resin sheets by the slide part.
    Type: Grant
    Filed: November 9, 2012
    Date of Patent: November 11, 2014
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Joji Yoshimura, Koji Nakanishi, Yasuhiro Ueno
  • Patent number: 8884475
    Abstract: The invention reduces vibration in a plastic element used in an electrical drive. The plastic element has a baseplate, at least two commutator brush boxes leading to a shaft passage channel which passes through the baseplate, and a bearing seat which is connected to the baseplate via at least one supporting arm for holding a shaft bearing. The invention provides for the entire contact area of the supporting arm with the baseplate to be arranged at a lateral distance from the commutator brush boxes.
    Type: Grant
    Filed: February 7, 2007
    Date of Patent: November 11, 2014
    Assignee: Robert Bosch GmbH
    Inventors: Patrick Schroeder, Peter Bohr
  • Publication number: 20140327329
    Abstract: A solid fixing resin composition, which has excellent filling properties, and a rotor using the same are provided. The fixing resin composition is used to form a fixing member constituting a rotor which includes a rotor core (110) which has a laminate formed by lamination of a plurality of plate members, is fixed and installed on a rotating shaft, and has a plurality of hole portions (150) arranged along the peripheral portion of the rotating shaft, provided in the laminate; a magnet (120) inserted in the hole portion (150); and a fixing member (130) formed by curing a fixing resin composition, filled in the separation portion between the hole portion (150) and the magnet (120), the resin composition including a thermosetting resin (A) containing an epoxy resin; a curing agent (B); and an inorganic filler (C), in which the ICI viscosity at 150° C. of the epoxy resin is equal to or less than 3 poises.
    Type: Application
    Filed: October 2, 2012
    Publication date: November 6, 2014
    Inventor: Tetsuya Kitada
  • Patent number: 8878402
    Abstract: A starter motor for an engine includes a motor casing made of electrically conductive material and an end bracket fixed to one end of the motor casing. The end bracket comprises a base with brush cages integrally formed therewith, brushes mounted in the brush cages and a conductor electrically connected to the brushes and motor casing. The base is a single piece made of electrically insulating material and coaxial mounting holes are formed in the base and motor casing for fasteners to fix the starter motor to a housing of the engine.
    Type: Grant
    Filed: July 20, 2012
    Date of Patent: November 4, 2014
    Assignee: Johnson Electric S.A.
    Inventors: Po Wah Chan, Wen Ming Jiang
  • Publication number: 20140319937
    Abstract: A coil end of a coil is insulated from a stator core by a molded member made of an insulating resin, and the coil, which is positioned in a slot, is insulated by insulating paper. In an armature of a rotating electrical machine, the molded member is divided into a first member and a second member that are rotatably coupled to each other by a hinge.
    Type: Application
    Filed: March 22, 2012
    Publication date: October 30, 2014
    Applicant: Mitsubishi Electric Corporation
    Inventors: Yutaro Shirai, Shinichiro Yoshida, Hironori Tsuiki
  • Publication number: 20140319936
    Abstract: A motor includes a housing, a stator holder, a stator, and a flow path for a cooling fluid. The cooling flow path is provided between the housing and the stator holder. A coil of the stator is covered by a resin portion. The stator holder may include a holder cylindrical portion and a holder flat plate portion.
    Type: Application
    Filed: April 22, 2014
    Publication date: October 30, 2014
    Applicant: NIDEC CORPORATION
    Inventors: Yusuke MAKINO, Yoshiki KAWAI
  • Patent number: 8872370
    Abstract: A tool cover for receiving a tool housing of a pneumatic tool is disclosed. The tool cover supports and aligns an inductor element of a stator with magnets of a rotor within the tool housing. The tool cover also supports a circuit to which the inductor element is electrically connected, where the circuit comprises a power conditioner for receiving current from the inductor element and conditioning the current to be acceptable for supply to a load that comprises one or more logic processing devices.
    Type: Grant
    Filed: August 1, 2013
    Date of Patent: October 28, 2014
    Assignees: H & S Autoshot Manufacturing Company, Ltd., Volt Aire Corporation
    Inventor: Jon J. Leininger
  • Patent number: 8872397
    Abstract: A rotary electric machine according to an embodiment includes a substantially cylindrical rotator that is freely rotatably supported, a stator, and a bracket that supports the rotator and the stator. The stator includes stator coils in which a plurality of air-cored coils are arranged in a ring shape and are integrated by resin, each of the air-cored coils being formed by winding a round copper wire and having an outer shape subjected to pressure molding, and stator cores divided for each of teeth.
    Type: Grant
    Filed: November 4, 2011
    Date of Patent: October 28, 2014
    Assignee: Kabushiki Kaisha Yaskawa Denki
    Inventor: Tuyoshi Nonaka
  • Patent number: 8872396
    Abstract: A rotor of an electric motor is provided in which a permanent magnet holding member can be assuredly fixed to a rotor main body and the rotor main body can be easily worked and inexpensively manufactured. In the rotor, a plurality of permanent magnets 21 are held in a permanent magnet holding member 29 made of a synthetic resin and fixed to an outer peripheral part of a cylindrical rotor main body 28. An outer peripheral surface of the rotor main body 28 is a cylindrical surface. Rotation prevention recessed parts 30 are formed at a plurality of parts in the circumferential direction of the outer peripheral part in both end parts of the rotor main body 28. The permanent magnet holding member 29 includes annular parts 31 which come into close contact with the outer peripheral parts of both end faces of the rotor main body 28 and connecting parts 32 which connect both the annular parts 31 on the outer peripheral surface of the rotor main body 28 and hold the permanent magnets 21.
    Type: Grant
    Filed: February 8, 2010
    Date of Patent: October 28, 2014
    Assignee: Jtekt Corporation
    Inventors: Takatoshi Sakata, Akihiko Kawano
  • Patent number: 8872402
    Abstract: In a rotating electrical machine for vehicle, at least one of a rectifier device, a voltage regulator, and a brush holder includes an external terminal connection portion provided with an insert terminal inserted into resin and an insert nut inserted into the resin and superimposed on the insert terminal. The insert terminal includes a contact portion on a surface on a side opposing the insert nut and the insert terminal and the insert nut are superimposed via the contact portion and inserted into the resin. It thus becomes possible to provide a rotating electrical machine for vehicle provided with constituent components that are free from an inconvenience caused by a variance over time.
    Type: Grant
    Filed: March 5, 2013
    Date of Patent: October 28, 2014
    Assignee: Mitsubishi Electric Corporation
    Inventor: Kazunori Tanaka
  • Publication number: 20140312720
    Abstract: A particularly cost-effective electric-motor brake actuator which is useable in a highly flexible manner in respect of structural boundary conditions has an integrally formed cup which is equipped with a permanent magnet assembly and can be equipped with a separately manufactured, electromagnetic rotor assembly. In this manner, the equipment outlay is reduced as is the construction costs.
    Type: Application
    Filed: December 13, 2012
    Publication date: October 23, 2014
    Inventors: Stefan Dettenberger, Michael Traeger, Martin Assel
  • Publication number: 20140300218
    Abstract: Provided is a slip ring device for a rotating electric machine, which is capable of reliably retaining a long lead while preventing movement and deformation of the long lead during insert molding. The slip ring device for a rotating electric machine includes: a first ring and a second ring; a long lead (12) having one end portion connected to the first ring and another end portion connected to a rotor coil; a short lead having one end portion connected to the second ring and another end portion connected to the rotor coil; and a molded body formed by insert molding, for retaining the first ring, the second ring, the long lead (12), and the short lead in a mutually insulated fashion. The molded body includes a restricting member (15) for restricting the long lead (12) from being moved and deformed during the insert molding.
    Type: Application
    Filed: February 9, 2012
    Publication date: October 9, 2014
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Yoshihiro Shinosaka, Shinichiro Minami, Hitoshi Shibagaki
  • Publication number: 20140300217
    Abstract: A high torque, low inertia direct drive motor comprises a circular outer stator 21 and a circular inner stator 25 and a ring of magnets 23a, 23b, 23c. The ring of magnets 23a, 23b, 23c is held by a support structure 31, said ring of magnets 23a, 23b, 23c positioned between the circular outer stator 21 and the circular inner stator 25. The circular outer stator 21 and ring of magnets and circular inner stator and ring of magnets are separated by an air gap. The circular outer stator 21 and circular inner stator 25 each have a plurality of teeth with coils wound around the teeth. The teeth of the circular inner stator 44a, 44b, 44c are aligned in the same radial direction as the teeth of the circular outer stator 46a, 46b, 46c.
    Type: Application
    Filed: August 31, 2011
    Publication date: October 9, 2014
    Applicant: Akribis Systems PTE LTD
    Inventors: Howe Yuen Lim, Chai Meng Goh
  • Patent number: 8850690
    Abstract: A method of manufacturing an armature for an electric motor, includes: placing a commutator and a lamination stack on an armature shaft, winding magnet wire in slots in the lamination stacks to form coils, attaching ends of the magnet wire to the commutator, and molding plastic around the magnet wire and around the shaft of the armature at ends of the lamination stack. A spinning inertia of the armature is adjusted by adjusting at least one of a mass of the plastic molded and a distribution of the plastic molded. Alternatively and/or additionally, at least one of a resonant frequency and critical speed of the armature is adjusted by adjusting at least one of a geometry of the plastic molded, the physical properties of the plastic and the mechanical properties of the plastic.
    Type: Grant
    Filed: November 1, 2012
    Date of Patent: October 7, 2014
    Assignee: Black & Decker Inc.
    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: 20140285038
    Abstract: A motor includes a motor assembly, an end cap, a flexible insulating sleeve, and a flexible enclosure. The motor assembly includes a stator, a rotor, and wiring connected to the stator. The end-cap is coupled to the motor assembly to produce first sub-assembly. In addition, the end-cap includes an electrical fitting for feeding the wiring externally of the motor. The flexible insulating sleeve fits over at a least a portion the first sub-assembly to produce a second sub-assembly. The flexible enclosure includes a formed housing section and a connecting section. The formed housing section loosely fits over the second sub-assembly prior to tightening of the connecting section and, when the connecting section is tightened, the formed housing section tightly fits over the second sub-assembly compressing the flexible insulating sleeve to produce an insulating seal.
    Type: Application
    Filed: March 24, 2014
    Publication date: September 25, 2014
    Applicant: BISON GEAR & ENGINEERING CORP.
    Inventors: Matthew Sherman Hanson, George Thomas, Gary Dorough, Jeff Hamaker, Edmund Peter Henke, Jr., Sanel Tatar
  • Patent number: 8841810
    Abstract: A rotor iron core is used, which is formed by laminating a base steel sheets with a magnetic flux density (B8000) of 1.65 T or more as measured at a magnetic field strength of 8000 A/m and a coercivity of 100 A/m or more.
    Type: Grant
    Filed: March 27, 2012
    Date of Patent: September 23, 2014
    Assignee: Nisshin Steel Co., Ltd.
    Inventors: Tomonaga Iwatsu, Yukio Katagiri, Susumu Fujiwara, Shigeru Morikawa
  • Publication number: 20140271280
    Abstract: An electric pump motor is provided. The motor includes a stator assembly including a magnetic stator component and an overmolded stator casing sealingly encapsulating the magnetic stator component. A rotor assembly that is rotatable about an axis includes a rotor shaft extending along the axis, a magnetic rotor component, and an overmolded rotor casing fixedly interconnecting the rotor shaft and magnetic rotor component. The rotor shaft is connected to an impeller that imparts a thrust load on the rotor shaft. The rotor and stator assemblies are configured so that the magnetic components induce a solenoid force on the rotor shaft opposite the thrust load.
    Type: Application
    Filed: March 17, 2014
    Publication date: September 18, 2014
    Applicant: MERKLE-KORFF INDUSTRIES, INC.
    Inventors: Bruce Ley, Justin Mumaw, Justin Anteau
  • Publication number: 20140239750
    Abstract: This disclosure discloses a rotating electrical machine including a rotating electrical machine main body portion including a stator and a rotor, and a winding switching unit configured to switch windings of the stator. The winding switching unit includes a housing including a flow passage through which a coolant is circulated formed inside, an electronic component mounted on a mounting surface of the housing, and a contact surface disposed on the housing and brought into contact with a wiring related member involving an internal wiring including a wiring connecting the windings and the electronic component.
    Type: Application
    Filed: May 2, 2014
    Publication date: August 28, 2014
    Applicant: KABUSHIKI KAISHA YASKAWA DENKI
    Inventors: Mitsunori NAGAO, Takeshi INOUE, Toshio NAGAO
  • Publication number: 20140239748
    Abstract: A rotor, in particular a permanent magnet rotor, for an electrical machine, with a magnet carrier arranged concentrically with an axis of the rotor, wherein the magnet carrier has protrusions on its outer face, a number of magnets arranged on the outer face of the magnet carrier, which are arranged in the peripheral direction of the magnet carrier side-by-side and spaced apart from one another on the magnet carrier, wherein the magnets in each case are arranged between the protrusions, and plastic, which in each case is arranged between the magnets and at least partially encloses the protrusions.
    Type: Application
    Filed: January 30, 2014
    Publication date: August 28, 2014
    Applicant: Wittenstein AG
    Inventors: Christian Herz, Ingolf Gröning, Kay-Horst Dempewolf
  • Publication number: 20140239749
    Abstract: Rotor, in particular permanent magnet rotor, for an electric machine, having a magnet support, a plurality of magnets which are arranged on the magnet support, and a rotor core which is arranged between a shaft and the magnet support, wherein the rotor core comprises plastic.
    Type: Application
    Filed: February 25, 2014
    Publication date: August 28, 2014
    Applicant: Wittenstein AG
    Inventor: Daniel Fehn
  • Patent number: 8816550
    Abstract: Disclosed is a bus bar of an EPS motor configured to improve a terminal structure of a bus bar to enable an easy assembly between a stator and the bus bar, whereby assemblage and operational reliability can be enhanced, the bus bar that is connected to a stator coil of the EPS motor, the bus bar including: an insulator made of insulation materials that forms a body of the bus bar; a lower terminal protrusively formed at a lower side of a periphery of the insulator, and connected to the stator coil; and an upper terminal protrusively formed at an upper side of the periphery of the insulator, and connected to the stator coil, whereby the terminals of the bus bar are divided to an upper terminal and a lower terminal to enhance assemblage and operational reliability by further obtaining a broader mutually discrete gap.
    Type: Grant
    Filed: November 4, 2011
    Date of Patent: August 26, 2014
    Assignee: LG Innotek Co., Ltd.
    Inventor: Byungyong Kim
  • Patent number: 8816542
    Abstract: A slim type stator includes: a number of division cores; a number of bobbins that partially surrounds the number of the division cores; an electric power terminal block on the outer portion of which a connector is provided in which external electric power is applied through the connector and that has terminal pins that are extended to the inside of the stator from the connector; a wiring box that is integrally formed with each bobbin and that mutually connects a stator coil with the terminal pins per phase; and a stator holder that mutually connects a number of division stator cores around which coils are wound with the outer circumference of the bobbins and supports the number of division stator cores.
    Type: Grant
    Filed: June 22, 2011
    Date of Patent: August 26, 2014
    Assignee: Amotech Co., Ltd.
    Inventor: Byoung Soo Kim