Patents Issued in November 27, 2014
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Publication number: 20140346878Abstract: The present invention is made to not only reduce voltage drop when a power supply circuit makes a selection between a power supply voltage from a main power supply and a backup power supply voltage from an auxiliary power supply, but also reduce the power consumption of the auxiliary power supply. The power supply circuit, which is in a semiconductor integrated circuit, includes a measurement circuit, a switch control circuit, and a switch circuit. The switch circuit includes a first switch element and a second switch element. The first switch element is coupled between an output terminal and a first input terminal. The second switch element is coupled between the output terminal and a second input terminal. The measurement circuit operates on the main power supply voltage at the first input terminal and compares the main power supply voltage with the auxiliary power supply voltage.Type: ApplicationFiled: April 17, 2014Publication date: November 27, 2014Applicant: Renesas Electronics CorporationInventor: Takehiko Umeyama
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Publication number: 20140346879Abstract: A power module (10) includes at least one power supply unit (110) and a power distribution board (130) separately located on different circuit boards to prevent any cross-influencing in voltage conversion. The power supply unit (110) includes an AC to DC converter (113) configured to receive an external alternating current (AC), and convert the AC into a first direct current (DC) having a voltage value within a first voltage range. The power distribution board (130) includes at least one voltage converter configured to receive the first DC and convert the first DC into at least one second DC to power the components of a server (20).Type: ApplicationFiled: May 22, 2014Publication date: November 27, 2014Applicant: HON HAI PRECISION INDUSTRY CO., LTD.Inventor: YU-CHI TSAI
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Publication number: 20140346880Abstract: When a snubber capacitor is charged to at least a predetermined voltage, a protection circuit renders conductive a clamp diode provided on current paths to complete the charging of the snubber capacitor.Type: ApplicationFiled: March 2, 2012Publication date: November 27, 2014Applicant: TOSHIBA MITSUBISHI-ELECTRIC INDUSTRIAL SYSTEMS CORPORATIONInventor: Yasuhiko Hosokawa
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Publication number: 20140346881Abstract: A circuit includes a power-on control circuit and a voltage generating circuit. The power-on control circuit is configured to cause a power-on control signal to follow a voltage level of a first supply voltage during a first time period that a voltage level of a second supply voltage is less than a threshold value, and to set the power-on control signal to have a voltage level of a reference voltage during a second time period that the voltage level of the second supply voltage is greater than the threshold value. The voltage generating circuit is configured to generate a voltage signal responsive to the power-on control signal.Type: ApplicationFiled: August 13, 2014Publication date: November 27, 2014Inventor: Wen-Han WANG
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Publication number: 20140346882Abstract: A power supply device (10) includes a plurality of constant current output circuits (14) that can supply power to a load (12). The constant current output circuit (14) includes a pulse generation unit (20) that generates a pulse voltage, and a communication unit (34) that transmits and receives drive information, between the constant current output circuit (14) and the other constant current output circuit (14). When an abnormality occurs in the constant current output circuit (14) supplying power to the load (12) and the constant current output circuit (14) supplying power to the load (12) is switched to the other constant current output circuit (14), the other constant current output circuit (14) drives the pulse generation unit (20) by using the drive information that has been received through the communication unit (34) from the power supply means having supplied power to the load.Type: ApplicationFiled: December 25, 2012Publication date: November 27, 2014Applicant: MITSUBISHI HITACHI POWER SYSTEMS, LTD.Inventors: Hideaki Emoto, Mitsuyuki Shirae
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Publication number: 20140346883Abstract: A control circuit includes a controller, first and second electronic switches, a diode, first to fourth resistors, and a capacitor. The controller is coupled to a power supply of a computer. The controller is also coupled to the first and second electronic switches. The first electronic switch is coupled to a cathode of the diode through the second electronic switch. An anode of the diode is coupled to ground through the capacitor. When the mains supply operates normally, the capacitor is charged by the power supply. When the mains supply is cut off, the capacitor is discharged to provide voltages to the computer for data storage.Type: ApplicationFiled: May 23, 2014Publication date: November 27, 2014Applicant: Hon Hai Precision Industry Co., Ltd.Inventor: CHUN-PO CHEN
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Publication number: 20140346884Abstract: A power converter that can supply constant voltage to a load even upon fluctuation of voltage of an AC power source includes an inverter circuit resulting from connecting switching elements in series, the inverter circuit being connected to both ends of a DC power source series circuit resulting from connecting in series two DC power sources; an AC output terminal that is connected to a connection point of the switching elements; another AC output terminal that is connected to a connection point of the DC power sources; and a bidirectional switch element including one end connected to the AC output terminal U and another end connected to a terminal of an AC power source.Type: ApplicationFiled: August 7, 2014Publication date: November 27, 2014Inventors: Satoru FUJITA, Ryuji YAMADA
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Publication number: 20140346885Abstract: A wireless power transfer system is disclosed that allows for directed power distribution. A power station that transmits the power can also transmit a distribution instruction that authorizes and/or prohibits various systems/components within a receiver device to receive power. A manager and power router within the receiver device route the power as directed by the distribution instruction. When multiple components/systems are authorized to receive the power, the receiver device can monitor power need and route as needed between authorized components/systems. in addition, the receiver device can act as a transmitter to wireless flash power to another device. The flash consists of bursting a large amount of power over a relatively short time. Several constraints, configurations, and considerations are required to perform this function.Type: ApplicationFiled: May 31, 2013Publication date: November 27, 2014Inventors: John WALLEY, James Bennett, Yasantha Rajakarunanayake
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Publication number: 20140346886Abstract: Described herein are techniques related to near field coupling and wireless power transfers. A portable device may include a coil antenna that includes an upper loop and a lower loop to form a figure-eight arrangement. The figure-eight coil antenna arrangement is wrapped against top and bottom surfaces of a component to establish near field coupling through front side, top side, bottom side, or corner side of the portable device. Further, a flux guide may be placed between the coil antenna and the component to facilitate magnetic flux at the upper loop and the lower loop to induce current of the same phase during receive mode. During transmit mode, the flux guide facilitates the magnetic flux at the upper loop and the lower loop to generate magnetic fields of the same direction.Type: ApplicationFiled: February 13, 2012Publication date: November 27, 2014Inventors: Songnan Yang, Anand S. Konanur, Bin Xiao, Ulun Karacaoglu
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Publication number: 20140346887Abstract: A system on a package (SOP) can include a galvanic isolator. The galvanic isolator can include an input stage configured to transmit an input RF signal in response to receiving an input modulated signal. The galvanic isolator can also include a resonant coupler electrically isolated from the input stage by a dielectric. The resonant coupler can be configured to filter the input RF signal and transmit an output RF signal in response to the input RF signal. The galvanic isolator can further include an output stage electrically isolated from the resonant coupler by the dielectric. The output stage can be configured to provide an output modulated signal in response to receiving the output RF signal.Type: ApplicationFiled: October 10, 2013Publication date: November 27, 2014Applicant: TEXAS INSTRUMENTS INCORPORTEDInventors: BHARADVAJ BHAMIDIPATI, SWAMINATHAN SANKARAN, MARK W. MORGAN, GREGORY E. HOWARD, BRADLEY A. KRAMER
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Publication number: 20140346888Abstract: Disclosed are a wireless power transmitting and charging system, and a method for controlling communication and power in the wireless power transmitting and charging system, with wireless power referring to energy transferred from a wireless power transmitting apparatus to a wireless power receiving apparatus through a magnetic coupling. Thus, the wireless power transmitting and charging system includes a source device for wirelessly transmitting power, and a target device for wirelessly receiving power.Type: ApplicationFiled: July 6, 2012Publication date: November 27, 2014Applicant: Samsung Electronics Co., Ltd.Inventors: Nam Yun Kim, Sang Wook Kwon, Young Tack Hong
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Publication number: 20140346889Abstract: A power supply device (2) is provided with a push-type power generator (4). When a push-button (5) on the push-type power generator (4) is pushed, a variable voltage is generated by a piezoelectric element (6) that excites a primary coil (L1). A high-frequency inverter (8) is activated by the variable voltage, exciting the primary coil (L1), and an alternating field is generated from the primary coil (L1). Secondary power can be supplied by means of the alternating field even if a secondary coil (L2) of an electrical device (10), disposed on a surface of a wall (1) opposite the surface on which the charging device (2) is disposed, is not in contact with the power supply device (2). The secondary coil (L2) of the electrical device (10) causes a light-emitting diode (LED1) to illuminate using secondary power obtained by non-contact power supply.Type: ApplicationFiled: September 21, 2012Publication date: November 27, 2014Applicant: PANASONIC CORPORATIONInventor: Hideaki Abe
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Publication number: 20140346890Abstract: A feed unit includes: a power transmission section configured to perform power transmission with use of a magnetic field or an electronic field; a power limiting section provided on a power supply line from an external power source to the power transmission section; and a control section provided on a side closer to the external power source than the power limiting section, and including a power transmission control section, the power transmission control section being configured to control the power transmission.Type: ApplicationFiled: October 12, 2012Publication date: November 27, 2014Applicant: SONY CORPORATIONInventors: Shinichi Haseno, Yoichi Uramoto
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Publication number: 20140346891Abstract: A direct current (DC) circuit breaker for power transmission or distribution system includes a current sensor for sensing current of a system, a controller, a physical switch, and multiple switch modules. The multiple switch modules are electrically coupled to the current sensor and the physical switch in series. Each switch module includes multiple base elements electrically coupled in parallel. Each base element includes a first silicon carbide (SiC) metal-oxide-semiconductor field-effect transistor (MOSFET) and a second SiC MOSFET electrically coupled in an opposite series connection mode. The first and second SiC MOSFETs are configured in a synchronous rectification mode by channel reverse conduction control. The controller controls the multiple switch modules to connect current in the system, and break current of the multiple switch modules according to sensed current signals from the current sensor.Type: ApplicationFiled: May 21, 2014Publication date: November 27, 2014Applicant: GE ENERGY POWER CONVERSION TECHNOLOGY LIMITEDInventors: Pengju Kang, Saijun Mao, Fei Xu, Wenqiang Yang, Yingqi Zhang, Pengcheng Zhu
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Publication number: 20140346892Abstract: Disclosed herein is a polling system, including: a matrix element including individual elements including upper electrodes and lower electrodes, the individual elements being arrayed in plural, the upper electrodes of the individual elements being each connected in series to form upper electrode units which are arrayed in plural and the lower electrodes of the individual elements being each connected in series to form lower electrode units which are arrayed in plural; an upper switch connected to each of the upper electrode units which is arrayed in plural; a lower switch connected to each of the lower electrode units which is arrayed in plural; and a polling unit performing polling to apply voltage to the upper electrodes and the lower electrodes, respectively.Type: ApplicationFiled: October 3, 2013Publication date: November 27, 2014Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.Inventors: Yun Sung Kang, Jung Won Lee, Sang Jin Kim, Jeong Suong Yang, Seung Mo Lim, Kyo Yeol Lee
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Publication number: 20140346893Abstract: We describe a system for controlling very large numbers of power semiconductor switching devices (132) to switch in synchronisation. The devices are high power devices, for example carrying hundreds of amps and/or voltages of the order of kilovolts. In outline the system comprises a coordinating control system (110, 120), which communicates with a plurality of switching device controllers (130) to control the devices into a plurality of states including a fully-off state, a saturated-on state, and at least one intermediate state between the fully-off and saturated-on states, synchronising the devices in the at least one intermediate state during switching.Type: ApplicationFiled: December 6, 2012Publication date: November 27, 2014Applicant: Amantys LtdInventors: Mark Snook, Edward Shelton, Stephen Parker, Matteo Vit
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Publication number: 20140346894Abstract: A battery pack test system is provided. The system includes a battery charging device that monitors an output voltage level of the vehicle battery pack. The system further includes a switch electrically coupled between an igniter and a voltage source. The system further includes a first video camera that generates a first plurality of images of an interior of the vehicle battery pack. The switch has a closed operational state at a first time in response to the output voltage level of a battery cell in the vehicle battery pack being greater than a threshold voltage level, to induce the igniter to generate a spark to generate a fire within an interior region of the vehicle battery pack.Type: ApplicationFiled: May 22, 2013Publication date: November 27, 2014Applicant: LG Chem, Ltd.Inventors: Chris Csicsay, Mohamed Alamgir, Lori Reinke
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Publication number: 20140346895Abstract: A method for the activation of an electrical device (50), which comprises at least one electrical component (30) whose values are mechanically variable by rotating or displacing is characterized by the following steps: at least one first and one second threshold value are predetermined, which are adjustable by rotating, touching, displacing or other manipulations; a time window starts after reaching the first threshold value by manipulation of the electrical component (30); if the second threshold value is reached by manipulation of the electrical component (30) within the time window, an activation signal is output; and if the second threshold value is not reached within the predeterminable time window by manipulation of the electrical component (30), the activation process is terminated.Type: ApplicationFiled: May 21, 2014Publication date: November 27, 2014Applicant: Balluff GmbHInventors: Matthias KOHLER, Simon MAHLER, Tobias REISSING
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Publication number: 20140346896Abstract: A system and method are provided for managing energy usage that includes obtaining an allocated power value associated with a predetermined time period, metering at least one of consumed power and corresponding consumed energy to determine a consumed power value and a consumed energy value and prompting for a reduced load condition when the consumed power value exceeds the allocated power value. The system and method may further include obtaining a line voltage value, comparing the line voltage value to a threshold voltage value, and obtaining energy saving parameters that define a reduced voltage value. A reduced power value that corresponds to the reduced voltage value may be supplied, the reduced power value being supplied when the line voltage value exceeds the threshold voltage value.Type: ApplicationFiled: August 5, 2014Publication date: November 27, 2014Inventors: John L. Lumsden, Rafael E. Zaga
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Publication number: 20140346897Abstract: A high-voltage DC voltage unit with a first DC voltage apparatus providing a first high-voltage DC voltage between a first output connection and a second output connection of the DC voltage apparatus or can be fed with a first high-voltage DC voltage. A second DC voltage apparatus provides a second high-voltage DC voltage or can be fed with a second high-voltage DC voltage. A first DC voltage connection is coupled with the first output connection of the first DC voltage apparatus. A second DC voltage connection is coupled with the second output connection of the second DC voltage apparatus. A reference potential connection is coupled with the second output connection of the first DC voltage apparatus, with the first output connection of the second DC voltage apparatus and with an earth potential, the first and second high-voltage DC voltages realising a bipolar power supply.Type: ApplicationFiled: May 21, 2014Publication date: November 27, 2014Inventors: Joerg WANGEMANN, Jens SCHULT
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Publication number: 20140346898Abstract: Disclosed is a junction box which includes voltage and current sensors that are connected to both ends of bypass diodes provided within the junction box to sense currents and voltages of the solar cell module; a MPPT controller that tracks a maximum power point from current and voltage values sensed from the voltage and current sensors; and a voltage controller that includes a switch for controlling an operation of the solar cell module, and controls a voltage corresponding to the tracked maximum power point to be output.Type: ApplicationFiled: November 14, 2012Publication date: November 27, 2014Inventors: Yun Heui Han, Yong Soo Yoon
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Publication number: 20140346899Abstract: A power control device includes an electric power switch and a control unit. The control unit is mounted on an electric device, determines whether the electric device is disposed at a normal use position or an abnormal inclined position, and determines whether the electric device is at a normal use state and is disposed at the normal use position. The control unit controls the electric power switch to provide electric power to the electric device when the electric device is at the normal use state, and to stop providing the electric power to the electric device when the electric device is at the abnormal inclined position.Type: ApplicationFiled: August 11, 2014Publication date: November 27, 2014Inventor: Tien-Ming CHOU
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Publication number: 20140346900Abstract: A linear motor system includes a coil assembly and a magnet assembly disposed adjacent to the coil assembly. The coil assembly includes a plurality of coil windings and a sealing material to seal and to prevent moisture and/or chemical ingress into the coil windings. The magnet assembly includes a plurality of magnets, a magnet housing disposed to house, cover and seal the plurality of magnets within the magnet housing, a plate to cover the plurality of magnets, a sealing element disposed between the plate and the magnet housing to seal the magnet assembly, and a groove formed to receive the sealing element between the plate and the magnet housing.Type: ApplicationFiled: August 4, 2014Publication date: November 27, 2014Inventors: Darius Bobelis, Fred Sommerhalter, Peter Smit, Claude Chirignan
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Publication number: 20140346901Abstract: The invention relates to a miniature linear vibrotactile actuator comprising: a first element 14, 104 of generally cylindrical shape, comprising permanent magnets 15, 105 aligned so that two adjacent sides of two adjacent magnets 15, 105 have identical polarities; a second element 11, 101 defining a cylindrical cavity 12, 102 into which the first element 14, 104 is inserted with play so as to be able to slide therein in a sliding direction X2, the second element 11, 101 comprising coils 13, 103 of conductive wire having strands that extend perpendicularly to the sliding direction X2, in order to form magnetic force generators, and that are placed so as to be able to influence the first element 14, 104 electromagnetically; and means 25, 41, 125 for returning and guiding the first element 14, 104 toward an equilibrium position in the second element 11, 101, in which position a median plane P2 between two adjacent magnets substantially coincides with a median plane P1 of a facing force generator 111.Type: ApplicationFiled: December 19, 2012Publication date: November 27, 2014Applicants: CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, UNIVERSITE PIERRE ET MARIE CURIE (PARIS 6)Inventors: Vincent Hayward, Amir Berrezag, George Dietz
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Publication number: 20140346902Abstract: The present disclosure includes: a magnetostrictive plate including a magnetostrictive material; a yoke around which a coil is wound and which has two ends magnetically connected to a surface of the magnetostrictive plate; and a bias magnet that generates bias magnetic flux circulating from one of the two ends of the yoke to the other one of the two ends through the yoke. Here, the magnetostrictive plate is surface-bonded to a non-magnetic structural body.Type: ApplicationFiled: September 13, 2012Publication date: November 27, 2014Inventor: Toshiyuki Ueno
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Publication number: 20140346903Abstract: 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: ApplicationFiled: October 14, 2013Publication date: November 27, 2014Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.Inventors: Jung Kyu Yim, Hae Jun Yang, Hyun Kag Park, Ki Young Lee
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Publication number: 20140346904Abstract: Disclosed herein is a switched reluctance motor comprising: a rotor having a shaft disposed at a central portion thereof and having salient poles formed at an outer circumference thereof; a stator having the rotor rotatably installed therein while forming a gap and having salient poles facing the salient poles of the rotor; and an extraction pressure decreasing unit separating the rotor and the stator from a mold, wherein the rotor and the stator are made of a soft magnet composite (SMC).Type: ApplicationFiled: May 16, 2014Publication date: November 27, 2014Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.Inventors: Hee Soo YOON, Han Kyung Bae, Sung Tai Jung, Sung Jun Leem, Sang Jong Lee, Joon Sik Shin
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Publication number: 20140346905Abstract: A rotating electric machine includes a rotor, a stator, a cooling device and a pair of cooling liquid collection tanks. The stator includes an annular stator core and a stator coil. The stator core is disposed radially outside the rotor so as to surround the rotor. The stator coil is mounted on the stator core so that a pair of coil ends of the stator coil protrude axially outward respectively from opposite axial end faces of the stator core. The cooling device is configured to supply cooling liquid to vertically upper parts of the coil ends of the stator coil. Each of the cooling liquid collection tanks is arranged to surround a vertically lower part of a corresponding one of the coil ends so as to collect and temporarily reserve therein the cooling liquid moved from the upper part to the lower part of the corresponding coil end.Type: ApplicationFiled: May 22, 2014Publication date: November 27, 2014Applicant: DENSO CORPORATIONInventors: Hirohito MATSUI, Koji ASAGARA, Atsuo ISHIZUKA
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Publication number: 20140346906Abstract: A motorized drum having a drum shell with a motor therein, the motor having a stationary shaft, stator windings, and a stator support structure that is affixed to the stationary shaft. A rotor rotates coaxially around the stator, and a cycloidal reducer has an output that rotates at a reduced rate. The reducer output is rotationally fixed to, and is disposed within, the drum shell. An input gear of the reducer received a hollow eccentric input shaft, and is urged into eccentric motion as the input shaft rotates. The output gear urges the drum shell into rotation at same rate of rotation as the output gear. An harmonic drive speed reducer that has an input shaft provides rotatory motion to a wave generator that is disposed against a flexible splined member. The flexible splined member engages a rigid circular spline member at two radially opposed zones. Induction and permanent magnet forms of operation are used.Type: ApplicationFiled: August 13, 2012Publication date: November 27, 2014Applicant: Mol Belting Systems, Inc.Inventors: Johan H. Paulides, Michael Hendrik DeGroot, Gerko Hulshof, Mircea Popescu
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Publication number: 20140346907Abstract: A rotating electric machine has a first frame and a second frame disposed at one axial end of a casing. The first and second frames have a first flange and a second flange, respectively, that protrude outwardly from the casing. The first and second flanges are fastened together by a through bolt. The first flange includes a recessed portion having a first curved portion, a second curved portion, and a third curved portion, A curvature radius of the third curved portion is greater than a curvature radius of the first curved portion and a curvature radius of the second curved portion such that a concentration of stress within the third curved portion that is caused by a fastening force of the through bolt may be reduced.Type: ApplicationFiled: May 23, 2014Publication date: November 27, 2014Applicant: DENSO CORPORATIONInventors: Makoto TANIGUCHI, Hiroshi Imai
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Publication number: 20140346908Abstract: An electric machine, in particular a generator for a wind turbine, is provided. The electric machine has a rotor and a stator, wherein the rotor is arranged rotatably relative to the stator about an axis of rotation. The rotor and the stator are arranged in such a way that a stator surface of the stator and a rotor surface of the rotor are spaced apart from one another. The rotor surface is circular about the axis of rotation. The stator is deformable in such a way that the stator surface has a non-circular surface profile about the axis of rotation without any magnetic interactions between the rotor and the stator being exerted within at least one segment of the stator, and that, in the event that magnetic interactions between the rotor and the stator are exerted, the stator is deformed in such a way that the stator surface is circular about the axis of rotation, with the result that a spacing between the stator surface and the rotor surface is constant.Type: ApplicationFiled: May 5, 2014Publication date: November 27, 2014Applicant: SIEMENS AKTIENGESELLSCHAFTInventor: ANDERS JAKOB MADSEN
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Publication number: 20140346909Abstract: A lithography device includes an eddy-current brake for damping the movement of a structural element of the lithography device. The eddy-current brake includes a plurality of magnets disposed in an arc-shaped arrangement, and a plurality of electrically conductive sheets arranged respectively between adjacent ones of the magnets. A relative movement between the magnets and the electrically conductive sheets in a direction to be damped inducing eddy currents in the electrically conductive sheets.Type: ApplicationFiled: August 11, 2014Publication date: November 27, 2014Inventors: Alexander Vogler, Markus Hauf
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Publication number: 20140346910Abstract: In a permanent magnet type concentrated winding motor, the number of magnetic poles is M, a stator Sr has an N number of teeth T around which coils are concentratedly wound and which are circumferentially arranged at equal intervals, M is equal to (18±4)n and N is equal to 18n, an armature winding AW has an m number of parallel circuits, and a 1-phase circuit of the parallel circuits is configured to have a 6n/m number of coils connected in series with each other.Type: ApplicationFiled: December 12, 2011Publication date: November 27, 2014Applicant: MITSUBISHI ELECTRIC CORPORATIONInventors: Masatsugu Nakano, Satoru Akutsu, Yoshihito Asao, Yuji Takizawa, Yu Hirotani, Ryuichi Takiguchi
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Publication number: 20140346911Abstract: A rotor includes a rotor iron core in which magnet insertion holes that are arrayed in a radial direction so as to be convex toward an inner peripheral side are provided for each magnetic pole, and in which the magnet insertion holes are arranged in a circumferential direction according to the number of magnetic poles, and flat-shaped permanent magnets that are inserted respectively in the magnet insertion holes, wherein the magnet insertion holes, which are arranged on an innermost peripheral side and adjacent to each other in a circumferential direction are provided in such a manner that the width of the magnet insertion hole gradually becomes larger toward the inner peripheral side such that the width of the iron core between the adjacent magnet insertion holes in a circumferential direction is constant in a radial direction.Type: ApplicationFiled: December 26, 2011Publication date: November 27, 2014Applicant: MITSUBISHI ELECTRIC CORPORATIONInventors: Kazuchika Tsuchida, Masahiro Nigo
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Publication number: 20140346912Abstract: The present invention relates to a flux-switching machine, including a stator having phase windings and field coils, wherein, in the machine, at least one field coil is arranged in a pair of notches separated by at least three teeth.Type: ApplicationFiled: November 7, 2012Publication date: November 27, 2014Applicant: MOTEURS LEROY-SOMERInventors: Philippe Manfe, Benjamin Gaussens
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Publication number: 20140346913Abstract: A rotor includes: a plurality of first magnetic pole members that are disposed such that first end portions and second end portions are respectively coupled magnetically and mechanically to a first magnetic end plate and to a second magnetic end plate and so as to be separated from a magnetic intermediate plate magnetically; a plurality of second magnetic pole members that are disposed such that intermediate portions are coupled magnetically and mechanically to the magnetic intermediate plate and so as to be separated from each of the magnetic end plates magnetically; a plurality of permanent magnets that are disposed between the first and second magnetic pole members in a circumferential direction; and a nonmagnetic holding body for separating the first magnetic pole members magnetically from the magnetic intermediate plate, and for separating the second magnetic pole members magnetically from the magnetic end plates.Type: ApplicationFiled: January 22, 2013Publication date: November 27, 2014Applicant: MITSUBISHI ELECTRIC CORPORATIONInventors: Masao Morita, Masaya Inoue, Yoichi Kuroda, Moriyuki Hazeyama, Kanji Shinkawa
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Publication number: 20140346914Abstract: In a three-phase, four-pole, four-parallel-circuit stator winding of an electrical rotating machine, each of two sets of U-phase output terminals U1, U2 is formed of two sets of parallel circuits each formed of windings having a same pitch (one is formed of first and second winding circuits 1, 2 and the other is formed of third and fourth winding circuits 3, 4). The winding of each winding circuit is formed of two serially-connected coil phase bands (coil phase bands a and b form the first winding circuit 1 and coil phase bands c and d, coil phase bands e and f, and coil phase bands g and h form the second, third, and fourth winding circuits 2, 3, 4, respectively). A voltage vector phase difference and a voltage difference between the winding circuits can be eliminated without providing a jumper wire to winding end portions.Type: ApplicationFiled: April 19, 2012Publication date: November 27, 2014Applicant: Mitsubishi Electrict CorporationInventors: Yoichi Funasaki, Kiyonori Koga, Susumu Maeda
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Publication number: 20140346915Abstract: A rotating electrical machine includes a stator and a rotor. The stator winding includes a plurality of conductor segments inserted through the slots from one end surface of the stator core with end portions of the conductor segments projecting out beyond another end surface of the stator core. The conductor segments include an undeformed portion, a plastically deformed portion formed at the end portions thereof and a tapered portion. The plastically deformed portion has a dimension of the plastically deformed portion along a circumferential direction that is greater than a dimension of the undeformed portion along the circumferential direction and so that a dimension of the plastically deformed portion along a radial direction is smaller than a dimension of the undeformed portion along the radial direction. The conductor segments are welded together at tops of the plastically deformed portions thereof.Type: ApplicationFiled: December 13, 2012Publication date: November 27, 2014Inventors: Takashi Ishigami, Yutaka Matsunobu, Yoshimi Mori
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Publication number: 20140346916Abstract: A commutator motor is configured such that an armature includes an armature core having teeth and slots, an armature coil, and a commutator having segments. The armature coil includes coil units in which windings are wound on the teeth, and jumper wire units for interconnecting between the coil units. Segment group includes first and second segments to which the coil units are connected, and a third segment to which only the jumper wire unit is connected. The first and second segments are disposed adjacent to each other, and the third segment is disposed next to the adjacent arrangement. The configuration includes the jumper wire unit that is wired from the third segment such that each of one part of the wire unit running to one side and the other part of the wire unit running to the other side is wired to pass through the same slot to interconnect between the coil units.Type: ApplicationFiled: July 10, 2013Publication date: November 27, 2014Inventors: Syouzou Sakon, Kazuo Toya, Yasuharu Uchida
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Publication number: 20140346917Abstract: A stator for a generator, comprises a coil support frame and a conductive wire unit arranged on the coil support frame, wherein the conductive wire unit comprises one basic conductive wire unit or a plurality of stacked basic conductive wire units, the basic conductive wire unit comprises a conductive wire layer and a magnetic-conducting sheet conformably stacked on and insulated from the conductive wire layer. A generator with closed-magnetic-path comprises a rotor and a stator, wherein the stator comprises the above conductive wire unit having a magnetic-conducting base plate, wherein the stator further comprises a magnetic yoke, the rotor comprises a transmission shaft, the conductive wire unit is fixedly connected in the magnetic yoke, at least a magnetic-conducting plate is coaxially connected on the transmission shaft, a magnet is connected on the magnetic-conducting plate, of which a magnetic pole is arranged towards the conductive wire unit.Type: ApplicationFiled: July 10, 2014Publication date: November 27, 2014Inventor: GANG LIU
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Publication number: 20140346918Abstract: A stationary portion of a motor includes a stator core, insulators, and coils. The stator core includes a core back having an annular shape, and a plurality of teeth extending radially inward from the core back. A radially inner end portion of each tooth has a circumferential width substantially equal to or smaller than a circumferential width of a remaining portion of the tooth. The core back includes a protruding portion protruding radially inward between adjacent teeth, a cut extending radially outward from the protruding portion, and a through hole extending in an axial direction through the core back defined at a radially outer end portion of the cut. The protruding portion increases a radial dimension of the core back to achieve a reduction in magnetic reluctance in the vicinity of the cut.Type: ApplicationFiled: September 14, 2012Publication date: November 27, 2014Applicant: NIDEC CORPORATIONInventors: Yoshihiro Uchitani, Yuji Tanaka, Tomoyoshi Yokogawa
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Publication number: 20140346919Abstract: A tubular body for an electrical machine is provided. The tubular body comprises a curved surface area, a first tooth and a second tooth. The tubular body is arrangable with respect to a further tubular body such that one of the tubular body or the further tubular body is rotatable with respect to the other one around a rotary axis. The first tooth and the second tooth extend from the curved surface area along a radial direction with respect to the rotary axis, wherein the first tooth and the second tooth are spaced apart from each other along a circumferential direction around the rotary axis. The first tooth comprises a first side wall facing a second side wall of the second tooth, wherein the first side wall comprises a first section which is parallel to the second side wall such that a circumferential distance between the first section and the second side wall is constant along the radial direction.Type: ApplicationFiled: May 19, 2014Publication date: November 27, 2014Applicant: SIEMENS AKTIENGESELLSCHAFTInventors: LIJIAN WU, ZHEN PING XIA
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Publication number: 20140346920Abstract: An electric machine, especially a transversal flux machine, the stator being composed of a stack of phase segments, each phase segment having at least one stator segment and one stator winding, especially a single winding, each stator segment having an annular stator bridge, on which pole shoes are premolded, which in particular extend in the radially inward direction, and/or which extend in the direction of the rotor and/or which are situated between the rotor and the annular stator bridge, the pole shoes having the same shape, in particular, the axial width of the pole shoe decreasing with increasing radial clearance, the associated profile being disposed between a first and a second profile, the first profile being a linear function of the radial clearance, the pole back associated with the first profile being a planar area, in particular, the second profile being a circular function, in particular a circular segment function, the pole back associated with the second profile being a cylindrical section areType: ApplicationFiled: January 21, 2013Publication date: November 27, 2014Applicant: SEW-EURODRIVE GMBH & CO. KGInventor: Florian Dreher
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Publication number: 20140346921Abstract: The invention relates to a device for retaining a machine component (3), in particular a stator, in a housing (2, 13) of an electric machine, wherein a pressure element (20) is provided in the housing (2, 13) in order to press the machine component (3) with a force against a stop (31).Type: ApplicationFiled: November 19, 2012Publication date: November 27, 2014Applicant: Robert Bosch GmbHInventors: Claudius Muschelknautz, Roland Schmidt, Christoph Heier, Tilo Koenig, Joerg Schmid, Samir Mahfoudh, Claude Berling, Jerome Thiery
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Publication number: 20140346922Abstract: A motor includes a brush configured to contact a commutator and a movement restricting structure configured to restrict a movement of the brush. The movement restricting structure has: a carbon holder for housing the brush while permitting a movement of the brush in the commutator radial direction; and a circumferentially restricting part for restricting a movement of the brush in the commutator circumferential direction. The circumferentially restricting part has a passing port formed by punching, through which the brush passes.Type: ApplicationFiled: May 23, 2014Publication date: November 27, 2014Applicant: MABUCHI MOTOR CO., LTD.Inventors: Atsushi Yoshida, Hisashi Ogino
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Publication number: 20140346923Abstract: An electrostatic transformer includes: a first fixed electrode; a second fixed electrode; a movable electrode displaceably supported by a flexible member within a space between the first fixed electrode and the second fixed electrode; and permanently charged films disposed on electrode surfaces of the movable electrode. And: an AC output voltage corresponding to a change in an electric charge induced at the second fixed electrode by displacing the movable electrode in response to an AC input voltage applied between the first fixed electrode and the movable electrode is extracted; and a ratio of the AC input voltage and the AC output voltage is determined based upon a ratio of an electromechanical coupling factor at an input-side electrostatic actuator, configured with the first fixed electrode and the movable electrode, and an electromechanical coupling factor at an output-side electrostatic actuator, configured with the second fixed electrode and the movable electrode.Type: ApplicationFiled: May 21, 2014Publication date: November 27, 2014Applicant: AOI Electronics Co., Ltd.Inventors: Hiroki HAYASHI, Masato SUZUKI
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Publication number: 20140346924Abstract: A piezoelectric element includes an element layer, an electrode layer including one or more positive electrode layers and one or more negative electrode layers repeatedly stacked to alternate with each other on the element layers in a vertical direction, a primary positive electrode connection member connecting the positive electrode layers, a primary negative electrode connection member connecting the negative electrode layers, at least one secondary positive electrode connection member, at least one secondary negative electrode connection member, and a primary electrode connected to the primary positive electrode connection member and the primary negative electrode connection member and configured of a pair of electrodes, and at least one secondary electrode spaced apart from the primary electrode and configured of a pair of electrodes.Type: ApplicationFiled: May 16, 2014Publication date: November 27, 2014Applicant: Samsung Electro-Mechanics Co., Ltd.Inventors: Yeon Ho Son, Joon Choi, Kyung Su Park, Jae Kyung Kim, Seung Hyeon Jeong, Jun Kun Choi
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Publication number: 20140346925Abstract: A power generation unit includes a deforming member adapted to repeatedly deform a piezoelectric element, a pair of electrodes provided to the piezoelectric element, an inductor disposed between the pair of electrodes, and constituting a resonant circuit together with a capacitive component of the piezoelectric element, a first switch connected in series to the inductor, a member adapted to detect a timing at which a deformation direction of the deforming member is switched, a full bridge rectifier adapted to rectify a current output from the pair of electrodes, a capacitor connected to the full bridge rectifier, and adapted to store a current supplied from the full bridge rectifier, a second switch connected between either one of the pair of electrodes and the capacitor, and a control circuit adapted to operate the first switch and the second switch.Type: ApplicationFiled: August 12, 2014Publication date: November 27, 2014Inventors: Noritaka IDE, Kunio TABATA, Atsushi OSHIMA, Hiroyuki YOSHINO
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Publication number: 20140346926Abstract: A vibration generating apparatus may include a housing having an internal space, an elastic member mounted in the internal space, a piezoelectric element having one surface thereof mounted on the elastic member, and a mass body fixed to the other surface of the piezoelectric element by a buffering adhesive.Type: ApplicationFiled: May 15, 2014Publication date: November 27, 2014Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.Inventors: Joon CHOI, Jae Kyung KIM, Sang Jin LEE, Dong Su MOON
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Publication number: 20140346927Abstract: There is provided a vibration generating apparatus including: a housing having an internal space; a vibrator disposed and vibrating within the housing; and a plurality of damper members installed in at least one of the housing and the vibrator and formed of different materials, wherein the plurality of damper members are overlapped and formed integrally with each other or are disposed to be adjacent to each other.Type: ApplicationFiled: August 5, 2013Publication date: November 27, 2014Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.Inventor: Dong Sun Park