Molded Plastic Patents (Class 310/43)
  • Patent number: 9438079
    Abstract: An electric motor is provided including a stator and an armature received within the stator for rotational movement within the stator. The armature includes an armature shaft on which a commutator is mounted, and a lamination stack also mounted on the armature shaft and having radially extending teeth. The armature includes an end insulator arranged at an end of the lamination stack, the end insulator having a base portion fitted around the armature shaft and insulating teeth corresponding to the radially extending teeth of the lamination stack. A set of coils are wound in the lamination stack slots and the end insulator slots. At least a portion of the insulating teeth has a greater thickness than at least a portion of the base portion. Alternatively, at least one of the insulating teeth has a greater thickness than at least another of the insulating teeth.
    Type: Grant
    Filed: May 22, 2013
    Date of Patent: September 6, 2016
    Assignee: BLACK & DECKER INC.
    Inventors: Daniel F. Nace, Michael Marjomaa
  • Patent number: 9431867
    Abstract: A rotating electrical machine includes a stator, a rotor, a case, a seal member, and a terminal board. The stator has a conductor line wound thereon. The rotor is disposed inside the stator. The terminal board is to make an electrical connection between the conductor line and an external power line connected to a power supply. The terminal board is contained in the case and includes a relay conductor and a storage chamber containing the relay conductor. The relay conductor is to make a connection between the conductor line and the external power line. The storage chamber is hermetically closed by the seal member with respect to an outside of the case. The storage chamber has a discharge hole that allows communication between the storage chamber and the outside.
    Type: Grant
    Filed: August 30, 2013
    Date of Patent: August 30, 2016
    Assignee: HONDA MOTOR CO., LTD.
    Inventor: Sayaka Tamura
  • Patent number: 9387416
    Abstract: A chromatographic column that includes a distributor plate secured to a backing plate of the chromatography column without the need for releasable fixing means such as screws or bolts, by employing a negative pressure or vacuum to affix the distributor to the backing plate.
    Type: Grant
    Filed: November 16, 2011
    Date of Patent: July 12, 2016
    Assignee: GE Healthcare BioSciences AB
    Inventor: Stefan K. Eriksson
  • Patent number: 9362796
    Abstract: An electricity collection and distribution ring includes a plurality of bus rings that include a plurality of annular conductive bodies and a plurality of connecting terminals provided on the annular conductive bodies. The connecting terminals each include a first connecting portion connected to a center conductor, a second connecting portion connected to a winding and a coupling portion for coupling the first and second connecting portions. The coupling portion includes the first extended portion including an end portion extending through a gap between the annular conductive bodies toward one side in an axial direction of the annular conductive bodies and the second extended portion extending from the end portion of the first extended portion toward one side in a radial direction of the annular conductive bodies. The second connecting portion is formed at an end portion of the second extended portion on one side in the radial direction.
    Type: Grant
    Filed: December 19, 2013
    Date of Patent: June 7, 2016
    Assignee: Hitachi Metals, Ltd.
    Inventors: Kazuhiko Tomita, Kenichi Egami
  • Patent number: 9350207
    Abstract: An insulator of a motor includes a body portion and a wire guide portion. The body portion is arranged to cover an upper surface, a lower surface, and circumferential side surfaces of each of a plurality of teeth. The wire guide portion is arranged to project downward from the body portion. A drawn-out portion of an electric wire which extends from a coil is arranged to reach a land portion arranged on a lower surface of a circuit board after passing through the wire guide portion. In addition, an area of contact between the drawn-out portion and the wire guide portion is arranged at an axial height lower than that of the lower surface of the circuit board.
    Type: Grant
    Filed: January 23, 2013
    Date of Patent: May 24, 2016
    Assignee: NIDEC CORPORATION
    Inventor: Yoshiaki Oguma
  • Patent number: 9257878
    Abstract: An arrangement includes conducting bar ends connected together and a cap) covering them filled with a putty. The cap is made of a resin containing a high thermal conductivity filler. The putty is a silicone elastomer containing a high thermal conductivity filler.
    Type: Grant
    Filed: September 14, 2011
    Date of Patent: February 9, 2016
    Assignee: ALSTOM TECHNOLOGY LTD.
    Inventors: Alexander Anderton, Thomas Baumann, Massimiliano Vezzoli, Thomas Hillmer, Stephan Mueller, Konstantinos Ballos, Mostafa Sadeghi, Dieter Stoll, Hossein Safari Zadeh
  • Patent number: 9251926
    Abstract: A collective conductor includes a plurality of conductive wires that is arranged collectively; and a copper foil that is wound around the collectively-arranged conductive wires and fusion-bonded to the conductive wires, and the copper foil has a tin plating on the side in contact with the conductive wires.
    Type: Grant
    Filed: September 5, 2013
    Date of Patent: February 2, 2016
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Ichiro Okada, Hiroaki Urano
  • Patent number: 9178398
    Abstract: A stator (100) of an electric motor includes a coil (12), a stator core (10) which supports the coil, and covers (22a, 22b) which are attached to the stator core so as to surround coil ends (13a, 13b) of the coil, wherein the covers have outside diameters which are at least partially smaller than the outside diameters of the stator cores, the covers have coefficients of linear expansion which are larger than the coefficient of linear expansion of the stator core, and the covers expand due to heat whereby the covers closely contact the housing which is arranged around the stator.
    Type: Grant
    Filed: December 3, 2013
    Date of Patent: November 3, 2015
    Assignee: Fanuc Corporation
    Inventor: Tetsumaru Saitou
  • Patent number: 9132884
    Abstract: A chain guide of a bicycle derailleur for displacing a chain between gears that includes inner and outer side plates, a pivot shaft and a thermoplastic connector. The pivot shaft pivotably connects the chain guide to the bicycle derailleur. The thermoplastic connector injection molds the pivot shaft to one of the inner and outer side plates.
    Type: Grant
    Filed: December 20, 2007
    Date of Patent: September 15, 2015
    Assignee: SRAM, LLC
    Inventors: Ted Chen, Andreas Benz, Georg Blaschke, Robert Boehm
  • Publication number: 20150145353
    Abstract: A manufacturing method of a stator is a method for manufacturing the stator using molds. The stator is constructed so that a stator main body and resin molded portion are integrated. The stator main body includes a terminal portion and a core. The manufacturing method includes: arranging the stator main body such that the terminal portion is located on a top portion of the molds; and filling a cavity with resin. The terminal portion has a gas discharging port configured to discharge gas out of the cavity from inside the cavity in the molds.
    Type: Application
    Filed: November 24, 2014
    Publication date: May 28, 2015
    Inventors: Masahiro KINO, Yukihisa YAMAMOTO, Masashige TANAKA
  • Publication number: 20150145351
    Abstract: The present invention relates to a method for potting a stator of an electric machine, including:—introducing an expandable, preferably elastically deformable, non-metallic shell in a non-expanded state into the stator,—expanding the shell,—pouring a resin around the shell, inside the stator,—retracting and removing the shell after the resin has set.
    Type: Application
    Filed: April 26, 2013
    Publication date: May 28, 2015
    Applicant: MOTEURS LEROY-SOMER
    Inventors: Sébastien Porcher, Haikel Gherairi, Stéphane Dufau
  • Publication number: 20150145352
    Abstract: An electric motor has a rotor that is rotatably arranged around a rotor shaft. The rotor is mounted by way of at least one outer bearing that is arranged at a radial distance from the rotor shaft. The rotor has an annular design and is connected to the rotor shaft by way of at least one flexible connecting element.
    Type: Application
    Filed: May 23, 2013
    Publication date: May 28, 2015
    Inventors: Soeren Hein, Friedrich Boebel
  • Patent number: 9041263
    Abstract: Provided is a vehicle AC generator which enables the common use of components and the use of the same molding die for molded bodies to enable a significant reduction in fabrication cost. The vehicle AC generator includes a molded body (45) having the same outer shape. On one surface side of the molded body, a capacitor body including a capacitor element built therein is electrically connected to an insert conductor, and a resistor (44) is electrically connected to the insert conductor only when a device main body is provided outside of the AC generator. On another surface side of the molded body, the device main body is electrically connected to the insert conductor only when the device main body is provided in the AC generator.
    Type: Grant
    Filed: December 21, 2012
    Date of Patent: May 26, 2015
    Assignee: Mitsubishi Electric Corporation
    Inventor: Kazunori Tanaka
  • Patent number: 9041259
    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: Grant
    Filed: July 18, 2012
    Date of Patent: May 26, 2015
    Assignee: Delphi Technologies, Inc.
    Inventors: Samuel R. Palfenier, Oscar Vazquez, Alejandro Avila
  • Patent number: 9035503
    Abstract: A stator arrangement particularly suitable for use in an air-cooled generator or other such electric machine includes a stator with an outer stator surface, an opening therein defining an inner stator surface, and longitudinally opposed stator end surfaces. Conductive coils are supported by the stator, and include end turns overlying the longitudinally opposed stator end surfaces. In order to block out environmental contaminants and prevent conductive coil shorting, protective barriers are mounted over the end turns and secured to the stator.
    Type: Grant
    Filed: April 21, 2011
    Date of Patent: May 19, 2015
    Assignee: KOLLMORGEN CORPORATION
    Inventors: Bradley A. Trago, Stephen Mark Fields
  • Publication number: 20150130299
    Abstract: This disclosure discloses a rotating electric machine includes a rotor disposed rotatably, a stator including a plurality of stator windings, and a connector unit connecting ends of the plurality of stator windings. The connector unit includes a plurality of conductors, and a plurality of resin films each formed sterically to insulate the plurality of conductors from one another.
    Type: Application
    Filed: January 23, 2015
    Publication date: May 14, 2015
    Applicant: KABUSHIKI KAISHA YASKAWA DENKI
    Inventors: Sohei OGA, Tuyoshi NONAKA
  • Patent number: 9030062
    Abstract: A cooling structure of a rotating electric machine includes a rotor core formed of a plurality of electromagnetic steel plates and a resin molding portion molding the rotor core with resin. The rotor core is provided with a through hole passing therethrough in the axial direction of the central axis that is a rotation axis. The rotor core is provided inside the through hole with an oil passage through which oil circulates. The resin molding portion has a cover portion covering the outer peripheral side of the oil passage. This configuration can provide the cooling structure of the rotating electric machine that achieves efficient cooling while suppressing occurrence of energy loss.
    Type: Grant
    Filed: October 16, 2009
    Date of Patent: May 12, 2015
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventor: Katsunari Matsumoto
  • Publication number: 20150123501
    Abstract: Disclosed is a motor including: a housing formed by means of insert injection molding in such a manner as to locate a stator assembly inside a mold, the stator assembly having a stator core, an upper insulator adapted to be coupled to the upper side of the stator core, and a lower insulator adapted to be coupled to the lower side of the stator core; a printed circuit board adapted to mount an integrated circuit device thereon; and at least one or more screws adapted to be inserted into screw holes formed on the top peripheral portion of the housing and having screw heads formed thereon, the screw heads being engagedly coupled to the peripheral portion of the end cover and the end portions of the screws being brought into contact with the stator core.
    Type: Application
    Filed: March 28, 2013
    Publication date: May 7, 2015
    Inventors: Jeong Cheol Jang, Chang Ho Cho, Hyun Sung Yang
  • Patent number: 9024495
    Abstract: A rotor for an electric motor that includes a main body on which a support surface is formed, to which a permanent magnet element is attached. The main body is partially surrounded by a joining sleeve having chamber walls. The chamber walls together with the support surfaces form a chamber in which the permanent magnet element is arranged. The joining sleeve fixes the position of the permanent magnet element in a radial direction on the main body and a locking element is molded onto the main body. The locking element closes the chamber fixing the position of the permanent magnet element in the axial direction on the main body.
    Type: Grant
    Filed: April 7, 2011
    Date of Patent: May 5, 2015
    Assignee: Continental Automotive GmbH
    Inventors: Rüdiger Brandau, Kurt Siebald
  • Patent number: 9021839
    Abstract: A motor for washing machines having a first insulator of the motor which surrounds a lower portion of a stator core of a stator of the motor and includes a ring-shaped mounting unit including a plurality of connection bosses so as to mount the stator on a tub of a washing machine, and at least one heat dissipation hole is provided on the mounting unit, thereby improving a cooling effect of the stator core.
    Type: Grant
    Filed: April 8, 2011
    Date of Patent: May 5, 2015
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jong Jin Lee, Woon Yong Lee, Myong Gui Choi
  • Patent number: 9018806
    Abstract: The present invention proposes a generator for arrangement on a shaft of an accessory gearbox of an engine with a stator and with a rotor which can be coupled to a shaft of the accessory gearbox of the engine and which is rotatably mounted relative to the stator, where a stator area receiving the stator can be separated from a rotor area receiving the rotor. The rotor can be supplied with cooling medium in the rotor area. It furthermore proposes an accessory gearbox of an engine with a drive shaft operatively connectable to a main shaft of the engine and with at least one generator arranged on a shaft of the accessory gearbox.
    Type: Grant
    Filed: August 23, 2012
    Date of Patent: April 28, 2015
    Assignee: Rolls-Royce Deutschland Ltd & Co KG
    Inventors: Juergen Beier, Soeren Braun
  • Patent number: 9018810
    Abstract: A stator for a brushless, electronically commutated electric motor having a stator core wound with stator windings and control electronics for controlling the stator windings. The stator core together with the stator windings are enclosed in a molded encapsulation made of a plastic material of a defined thermal conductivity (?St). The temperature sensor is arranged on the outside at the encapsulation, and the control electronics are designed such that they calculate the temperature in the region of the stator windings on the basis of the temperature detected by the temperature sensor taking into account a specific stator temperature profile stored in a memory. Furthermore, the invention relates to a brushless, electronically commutated electric motor having a stator as described above.
    Type: Grant
    Filed: June 8, 2012
    Date of Patent: April 28, 2015
    Assignee: ebm-papst Mulfingen GmbH & Co. KG
    Inventors: Holger Hartmann, Gerd Futterlieb
  • Patent number: 9018808
    Abstract: A rotor assembly including a rotating shaft, a rotor core, a permanent magnet, a magnetic ring support, and a magnetic ring. The permanent magnet is mounted on the outer side surface of the rotor core. The magnetic ring is nested on the magnetic ring support, and the magnetic ring support and the rotor core are made as a whole by injection molding. The rotor assembly is relatively simple to produce, low in cost, and features improved efficiency.
    Type: Grant
    Filed: December 8, 2011
    Date of Patent: April 28, 2015
    Assignee: Zhongshan Broad-Ocean Motor Manufacturing Co., Ltd.
    Inventors: Yonggang Liu, Chongsheng Zeng
  • Patent number: 8997332
    Abstract: A method for forming an armature for an electric motor includes: securing a lamination stack having slots therein on an armature shaft, securing a commutator on one end of the armature shaft, winding magnet wires in the slots in the lamination stack and securing ends of the magnet wires to the commutator, the magnet wires having armature lead wires that extend from the slots to the commutator; and molding plastic over the magnet wires to encase at least the armature lead wires in plastic. Alternatively and/or additionally, plastic is molded over the magnet wires to retain them in the slots and to support the armature lead wires and prevent them from vibrating when the armature rotates during operation.
    Type: Grant
    Filed: November 1, 2012
    Date of Patent: April 7, 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: 9000629
    Abstract: A stator segment arranged to define a portion of an annular stator includes a core segment including a core back portion arranged to extend in a circumferential direction of the stator, and a tooth portion arranged to extend from the core back portion in a radial direction of the stator; a coil wound around the tooth portion and including a pair of coil wire terminals; an insulating layer arranged between the coil and the tooth portion; and a resin layer arranged to seal the entire coil except for the pair of coil wire terminals. Circumferential end walls of the resin layer are arranged circumferentially inward of circumferential end walls of the core back portion.
    Type: Grant
    Filed: February 28, 2011
    Date of Patent: April 7, 2015
    Assignee: Nidec Corporation
    Inventors: Tomoyoshi Yokogawa, Airi Nakagawa
  • Patent number: 9000638
    Abstract: Provided is a vehicle AC generator which enables the common use of components and the use of the same molding die for molded bodies to enable a significant reduction in fabrication cost. The vehicle AC generator includes a molded body (45). On one surface side of the molded body, a capacitor body (43) including a capacitor element built therein is electrically connected to an insert conductor. On another surface side of the molded body, a resistor (44) is electrically connected to the insert conductor only when a device main body is provided outside of the AC generator, and the device main body is electrically connected to the insert conductor only when the device main body is provided in the AC generator.
    Type: Grant
    Filed: February 14, 2013
    Date of Patent: April 7, 2015
    Assignee: Mitsubishi Electric Corporation
    Inventors: Kazunori Tanaka, Toshiyuki Oonishi, Kyoko Higashino
  • Patent number: 9000630
    Abstract: Provided is a motor including a rotor, a stator having a stator core and a coil, a stator frame, an end cover, first and second bearings, and a heat radiating resin in the stator frame. The coil includes first and second end portions projecting oppositely and axially. The stator frame includes a peripheral wall and an end wall, whose respective central parts form first and second boss portions holding the first and second bearings respectively. The heat radiating resin includes a first resin part covering the first end portion and closely contacting an inner surface of the stator frame, and a second resin part covering the second end portion and separating from an outer peripheral surface of the second boss portion. The first resin part has a portion between the first end portion and the first boss portion, the portion having a greater thickness than that of the other.
    Type: Grant
    Filed: October 25, 2012
    Date of Patent: April 7, 2015
    Assignees: Kobe Steel, Ltd., Kobelco Construction Machinery Co., Ltd.
    Inventors: Akira Tsutsui, Seiji Saiki, Kazushige Koiwai, Akira Nakazumi
  • Publication number: 20150091396
    Abstract: A mounting feature plate rigidly mounts a mounting feature to a stator of an electrical motor in proximity to an end shield to help maintain a predetermined air gap between a rotor and a stator in the electrical motor. The mounting feature plate includes a planar member, an offset member extending from the planar member that has a mounting feature configured to mount an electrical motor within an appliance, and a pair of flanges extending from the planar member. Each of the flanges has an opening with a cylindrical extrusion aligned with and extending from the opening. The extrusions are configured to be received within a mounting hole within a stator to enable a bolt to pass through the opening and the extrusion and be received within the mounting hole in the stator.
    Type: Application
    Filed: September 30, 2013
    Publication date: April 2, 2015
    Applicant: Nidec Motor Corporation
    Inventors: Gary W. Borcherding, Philip S. Johnson
  • Publication number: 20150084445
    Abstract: An electric machine comprises a sealed outer casing defined by a body and by a cover coupled to the body, a stator and a rotor the latter two being mounted inside the casing; the stator is of a wound type and comprises a core having at least two pole pieces and a plurality of windings each defined by a conductor wire wound in a plurality of coils around the pole pieces; the electric machine further comprises a plurality of plastic components located inside the casing and made of a plastic material whose moisture absorption at saturation is less than 0.8%, having insulating and/or supporting and/or cooling functions.
    Type: Application
    Filed: April 23, 2013
    Publication date: March 26, 2015
    Inventor: Pietro DeFilippis
  • Publication number: 20150084446
    Abstract: A motor actuator includes multiple rotors and stators arranged in an alternating configuration. Each rotor is located between two adjacent stators. Each rotor includes magnets assembled on a shaft. The stators are secured to a housing, and each stator has multiple coils embedded as traces within a printed circuit board (PCB). The motor actuator can function as a stepper motor, a continuous BLDC motor, a rotary absolute position encoder, an electricity generator, and a continuous torque meter in a single unit. A stacked configuration for the PCB motor results in a compact design, high torque output, low weight, and high efficiency.
    Type: Application
    Filed: September 18, 2014
    Publication date: March 26, 2015
    Inventor: Siamak Atar
  • Publication number: 20150086398
    Abstract: A rotor unit for a brushless direct current motor (BLDC motor) comprises a main body integrally formed with a rotor shaft and an annular ring magnet mounted on the main body. The annular magnet comprises an anisotropic hard ferrite and is laterally magnetized. The rotary shaft and the main body of the rotor unit may be formed from one plastic material. The rotor unit is supported within the BLDC motor via self-lubricating bearing seats.
    Type: Application
    Filed: September 18, 2014
    Publication date: March 26, 2015
    Inventors: Gernot Teufl, Andreas Pleschinger
  • Publication number: 20150084448
    Abstract: A rotating electrical machine includes a rotor and a stator positioned circumferentially around the rotor. The stator includes multiple core elements arrayed in a circumferential direction of the rotor such that the core elements form multiple slots arrayed in the circumferential direction, and a unitary cylindrical coil resin structure including molded resin and lap wound air-core coils resin-molded in the molded resin, each of the air-core coils having an air-core, a first side portion and a second side portion extending on the opposite sides of the air-core such that the first side portion extends through a first one of the slots and the second side portion extends through a second one of the slots.
    Type: Application
    Filed: December 5, 2014
    Publication date: March 26, 2015
    Applicant: KABUSHIKI KAISHA YASKAWA DENKI
    Inventor: Tsuyoshi NONAKA
  • Publication number: 20150084447
    Abstract: A method of producing an electric motor which can prevent resin from ending up leaking from an opening for lead wire use when performing a step of filling a resin in the internal space of the electric motor, provided with a step of attaching a bracket which has an opening for leading lead wires of a coil to the outside, a step of arranging a seal member which has through holes which hold the lead wires at the opening so as to tightly contact without clearance the wall surfaces which define the opening while passing the lead wires through the through holes, and a step of filling a resin in the internal space which is defined by the bracket and the stator core.
    Type: Application
    Filed: September 25, 2014
    Publication date: March 26, 2015
    Inventor: Youhei Kamiya
  • Publication number: 20150084444
    Abstract: A mold stator is configured to include a stator core and a mold resin that covers the stator core. A divided-core part includes a yoke part that is arranged coaxially with a rotor that is provided in the stator core, a teeth part that extends from the yoke part in a radially-inward direction, and a teeth distal-end part that is formed at a radially-inward end part of the teeth part. An outer-circumferential flat-surface part is formed on an outer circumferential surface of the yoke part and an outer-circumferential flat-surface part is formed at a position on an outer circumferential surface of the mold stator opposing the flat-surface part of the yoke part.
    Type: Application
    Filed: October 19, 2012
    Publication date: March 26, 2015
    Inventors: Koji Yabe, Naohiro Oketani, Hiroshi Yamanaka, Hironori Yabuuchi, Takayuki Onihashi
  • Patent number: 8987955
    Abstract: A stator, a rotor, bearings, and conductive brackets are provided. The stator has a stator iron core having a winding wound thereon. The rotor has a rotating body that holds a permanent magnet in the circumferential direction so that the permanent magnet faces the stator, and a shaft that has the rotating body fastened thereto so as to penetrate through the center of the rotating body. Both of the bearing on the output shaft side and the bearing opposite the output shaft side journal the shaft. One of the brackets fixes the bearing on the output shaft side, and the other of the brackets fixes the bracket opposite the output shaft side. The brackets are electrically connected to each other, and a dielectric layer is formed between the shaft and the outer periphery of the rotating body.
    Type: Grant
    Filed: May 12, 2010
    Date of Patent: March 24, 2015
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Hirofumi Mizukami, Akihiko Watanabe, Takehiko Hasegawa, Haruhiko Kado
  • Patent number: 8987966
    Abstract: An electric motor has a wound stator and a permanent magnet rotor. The rotor includes a shaft, a hub fixed on the shaft, a plurality of rotor core segments and magnets fixed around the hub, and a pair of covers fixed to axial ends of the rotor core segments. The hub and covers are formed on the rotor core segments by inserting molding and one of the covers has openings to allow the magnets to be inserted into spaces formed between adjacent rotor core segments such that the rotor core segments and magnets are alternately arranged in a circumferential direction of the rotor.
    Type: Grant
    Filed: January 18, 2012
    Date of Patent: March 24, 2015
    Assignee: Johnson Electric S.A.
    Inventors: Jian Zhao, Yue Li, Mao Xiong Jiang, Ya Ming Zhang, Xiao Ning Zhu
  • Patent number: 8987958
    Abstract: A waterproof motor stator structure includes a circuit board; a stator mounted on one face of the circuit board; a lower shell forming an open-topped annular recess for receiving the circuit board therein and having an central opening communicable with the annular recess; an upper shell fitted around an outer side of the stator; and a protective layer formed in the annular recess of the lower shell to encapsulate the circuit board and an open lower end of the upper shell, so that the lower shell and the upper shell are joined into an integral unit. With these arrangements, the stator located in between the lower and upper shells can be effectively protected against external moisture and salt spray with reduced time, labor and material costs while enabling extended service life a fan using same.
    Type: Grant
    Filed: December 20, 2012
    Date of Patent: March 24, 2015
    Assignee: Asia Vital Components Co., Ltd.
    Inventors: Wei-Cheng Chen, Ping-Chi Kuo, Chu-Hsien Chou, Shih-Chieh Lin
  • Publication number: 20150076933
    Abstract: An overmolded stator for use in an electric motor is disclosed. The stator core includes a yoke and a plurality of arcuately spaced apart teeth extending at least substantially radially from the yoke. Each of the teeth presents opposite axially spaced apart endmost surfaces, a leg extending generally radially from the yoke, and a head extending generally arcuately relative to the leg to present opposite head ends spaced from the leg. A pair of wire retention wings extend at least substantially circumferentially outwardly relative to each of the teeth.
    Type: Application
    Filed: September 16, 2013
    Publication date: March 19, 2015
    Applicant: Nidec Motor Corporation
    Inventors: Keith I. Hoemann, Daniel E. Bailey
  • Publication number: 20150076934
    Abstract: Disclosed herein is a fan motor including: a first bracket having a central portion through which a rotary shaft penetrates, the first bracket having an upper bearing insertion space which is formed in the first bracket and to which an upper bearing for supporting the upper end portion of the rotary shaft is inserted; a second bracket having an upper side to which the first bracket is connected, the second bracket having a lower bearing insertion space which is formed at the central portion of the lower side thereof and to which a lower bearing for supporting the lower end portion of the rotary shaft is inserted; a printed circuit board inserted and fixed into a PCB insertion space formed in the lower side of the second bracket; and a third bracket having an upper side to which the second bracket is connected.
    Type: Application
    Filed: July 7, 2014
    Publication date: March 19, 2015
    Inventors: Jeong Cheol JANG, Gyeong Su PARK, Woo Sung CHO
  • Patent number: 8981613
    Abstract: The electric rotating machine includes a stator winding constituted of conductor segments each having a pair of in-slot portions and a coil end section projecting from both axial ends of a stator core. The coil end section includes a joint-side end portion having a skew portion intersecting with another one of the conductor segments at an axial end of the stator core. The skew portion is formed with a joint end portion at an extremity thereof, the joint end portion being formed with a conductor exposed portion where an inner conductor is exposed and joined to a conductor exposed portion of another conductor segment. A joint area between the joint end portions and a vicinity thereof are covered by an insulating resin member. The insulating resin member is thicker at a portion covering the conductor exposed portions than at a portion covering other than the conductor exposed portions.
    Type: Grant
    Filed: August 17, 2012
    Date of Patent: March 17, 2015
    Assignee: Denso Corporation
    Inventors: Hiroyuki Ikuta, Masato Yamaji
  • Patent number: 8981604
    Abstract: The invention provides an active element for an electromagnetic machine, the element comprising an alternating succession in a main direction of portions presenting a first magnetic property and of portions presenting a second magnetic property, wherein the element includes a non-magnetic covering that is thin relative to a thickness of the portions and that extends to cover a substantial fraction of an outside surface of the active element, the covering being secured to at least some of the portions and presenting sufficient strength to form a member for mechanically transmitting the magnetic forces to which the portions are subjected.
    Type: Grant
    Filed: June 28, 2007
    Date of Patent: March 17, 2015
    Assignee: Messier-Bugatti-Dowty
    Inventors: Nicolas Ziegler, Daniel Matt
  • Publication number: 20150069862
    Abstract: A casing for a rotary electric machine and a rotating electric machine includes an inner casing part made of a metal or a metal alloy and which encloses a stator and a rotor of the rotary electric machine, an outer casing part made of plastic and which at least partially surrounds the inner casing part, and at least one connection point located between the inner casing part and the outer casing part and which mechanically connects the outer casing part to the inner casing part, wherein the at least one connection point has a first flange on the outer casing part and a second flange on the inner casing part.
    Type: Application
    Filed: April 9, 2013
    Publication date: March 12, 2015
    Inventor: Michael Bulatow
  • Publication number: 20150069861
    Abstract: An electric machine includes a stator, a rotor interacting magnetically with the stator, a housing surrounding the stator and rotor, and a hollow shaft provided for arrangement of the rotor and mounted on the housing. A radial fan is mounted rotationally fixed on the hollow shaft on the ventilation side. A section of a fan blade of the radial fan extends axially away from the housing to a greater extent than the hollow shaft. A guide element with radially extending plate is arranged in the hollow shaft, wherein the plate is arranged axially further away from the housing than the end side of the hollow shaft on the ventilation side. An inner coolant flow can thus be delivered from the section of the fan blade out of the hollow shaft through a passage between the end side of the hollow shaft on the ventilation side and the plate radially outwards.
    Type: Application
    Filed: June 27, 2012
    Publication date: March 12, 2015
    Applicant: Siemens Aktiengesellschaft
    Inventors: Klaus Büttner, Klaus Kirchner, Michael Müller
  • Patent number: 8975796
    Abstract: A motor includes a stator integrally molded together with a stator member, which includes a stator iron-core wound with a winding, by insulating resin, a rotor mounted on a shaft as a center and confronting the stator, two bearings supporting the shaft rotatably, brackets fixing the bearings, and a drive circuit board including a drive circuit which supplies an electric current to the winding and drives the rotor. Either one of the two bearings includes an outer ring and an inner ring both of which are electrically insulated from each other.
    Type: Grant
    Filed: March 29, 2010
    Date of Patent: March 10, 2015
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Haruhiko Kado, Hirofumi Mizukami, Akihiko Watanabe, Takehiko Hasegawa
  • Patent number: 8963381
    Abstract: In a one-piece resin component, a plurality of stackable resin portions is resin-molded integrally with a resin housing of a dynamoelectric machine and radially outwardly projects from the resin housing. Each the plurality of stackable resin portions is adapted to be stacked against a corresponding one of a plurality of stackable resin portions of another one-piece resin component that is generally identical to the one-piece resin component.
    Type: Grant
    Filed: September 23, 2011
    Date of Patent: February 24, 2015
    Assignee: Asmo Co., Ltd.
    Inventors: Hiroki Sugiura, Hiroaki Honma, Shinya Sugiura
  • Patent number: 8957553
    Abstract: A brushless motor includes a stator molded integrally with a resin having a fixing member including a stator iron core and a winding wound thereon, a rotor of a disk-like iron core holding a ferrite resin magnet in a circumferential direction, the rotor arranged to face the stator about a shaft, a bearing rotatably supporting the shaft, and conductive brackets fixing the bearing. The brackets are electrically connected to each other with a conducting pin in the stator.
    Type: Grant
    Filed: December 11, 2009
    Date of Patent: February 17, 2015
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Takehiko Hasegawa, Hirofumi Mizukami, Akihiko Watanabe, Haruhiko Kado
  • Patent number: 8957552
    Abstract: A can of a drive motor is provided for a pump assembly, wherein the can (22) is manufactured at least partly of plastic (52). At least in a part of the can (22) the plastic (52) is reinforced by individual fibers (32) distributed in the plastic (52). The fibers (32) in at least one layer (35) of the can (32) are aligned in a defined manner in the peripheral direction with respect to the longitudinal axis (Z) of the can (22). A method for manufacturing such a can is also provided.
    Type: Grant
    Filed: September 12, 2008
    Date of Patent: February 17, 2015
    Assignee: Grundfos Management a/s
    Inventors: Jørn Toftegaard Hansen, Tom Eklundh Larsen, Finn Mathiesen HøJ
  • Patent number: 8957559
    Abstract: A housing for an actuator for receiving an electric motor and further functional units of the actuator, wherein a can is integrally molded to an inner face of the housing that is designed to receive the electric motor and wherein means of fastening are integrally molded to the can that are designed to position and fix the electric motor accommodated in the can.
    Type: Grant
    Filed: October 31, 2012
    Date of Patent: February 17, 2015
    Assignee: Minebea Co., Ltd.
    Inventors: Helmut Schneider, Jürgen Schill
  • Publication number: 20150042181
    Abstract: An electric motor, in particular a radiator fan motor of a motor vehicle, has a rotor which is mounted such that it can rotate in relation to a stator, a motor mount which has an electronics compartment for accommodating a converter electronics system, and an electronics compartment cover. The electronics compartment cover has a peripheral sealing groove into which a peripheral edge of the electronics compartment engages by way of a corresponding sealing web in order to reliably seal off the electronics compartment.
    Type: Application
    Filed: October 24, 2014
    Publication date: February 12, 2015
    Inventors: FRANK MAUCH, TOBIAS OTT, THOMAS SCHENCKE, ARTUR SCHMIDT, HERMANN SCHULZ, JAN GWOZDZ, THOMAS ZIEGLER, THOMAS HUSSY
  • Publication number: 20150042180
    Abstract: An insulator to be attached to a laminated core of a rotating electrical machine includes a frame-shaped body which surrounds the laminated core and around which a coil wire is wound, and first and second flanges provided at both open sides of the body. The second flange has a first recess that extends toward the body.
    Type: Application
    Filed: August 4, 2014
    Publication date: February 12, 2015
    Applicant: KABUSHIKI KAISHA YASKAWA DENKI
    Inventors: Yasufumi KUROIWA, Kanta YAMAGUCHI, Yoichi KITANO