Patent application number | Description | Published |
20090260218 | METHOD FOR MANUFACTURING A STATOR FOR INNER-ROTOR TYPE ROTARY ELECTRIC MACHINES - A tapered cage coil is prepared, having a small-diameter top coil end | 10-22-2009 |
20090261685 | SEGMENT-CORE TYPE STATOR FOR INNER-ROTOR TYPE ROTARY ELECTRIC MACHINES AND AN IMPROVED METHOD FOR MANUFACTURING THE STATOR - When accommodating a cage stator coil in a stator core made up of distributed cores, an end side distributed core composing end side core at an end side in axial direction is made larger than a central side distributed core composing central side core. The cage stator coil is formed by compressing a central portion of an original cage stator coil. The end side segment core composing the end core is set at a central portion in an axial direction of the cage stator coil then the end side coil is moved to an end portion in the axial direction. The central side segment core composing the central core is set at the central portion in the axial direction of the cage stator coil thereafter. | 10-22-2009 |
20090273253 | STATOR FOR ROTARY ELECTRIC MACHINE AND METHOD OF MANUFACTURING THE STATOR - A rotor provided in rotary electric machines comprises a stator core having a radial direction and slots provided with bottomed openings directed in the radial direction. The rotor also comprises a stator coil comprising slot accommodation portions being accommodated in the slots of the stator core and coil end portions each connecting mutually adjacent slot accommodation portions among the slot accommodation portions and respectively protruding from both end faces of the stator core. The stator coil is pre-formed into a cylindrical shape before the slot accommodation portions are accommodated into the slots of the stator core. The slot accommodation portions are formed to respectively have convex parts each protruding toward an opposite way to the slot openings, before the slot accommodation portions are accommodated into the slots. The convex parts are pressed by the stator core toward the openings during accommodation of the slot accommodation portions into the slots. | 11-05-2009 |
20090320275 | METHOD OF TWISTING COIL WIRE TO MAKE COIL ASSEMBLY FOR USE IN ELECTRIC ROTARY MACHINE - A method of producing a coil assembly to be wound in a stator core with a plurality of slots. The method prepares a first and a second coil wire each of which is made up of in-slot portions and turned portions, arranges the first and second coil wires in parallel with the turned portions being offset from each other in a lengthwise direction thereof, moves the first coil wire to establish engagement of the turned portions of the first and second coil wires, turns the first coil wire about a pivot where the turned portions engage, crosses the first coil wire over the second coil wire around the pivot, and turns the first coil wire around the pivot so as to twist the turned portions of the first and second coil wires together. This sequence of steps is repeated to twist or braid the first and second coil wires without undesirable deformation thereof. | 12-31-2009 |
20090322178 | COIL WIRE FOR COIL ASSEMBLY FOR ROTARY ELECTRICAL MACHINE - A coil wire for a coil assembly of a rotating electrical machine is provided such that sufficient space in braiding is secured when coil-wire-bundles bundling a plurality of the coil wires are braided. | 12-31-2009 |
20100000077 | METHOD OF MANUFACTURING COIL FOR STATORS MOUNTED IN ROTARY ELECTRIC MACHINES - In manufacturing a stator coil for rotary electric machine having phase windings, plural conductive shaped wire members are integrated mutually to form an integrated body. Each shaped wire member has plural straight portions, and plural turn portions alternately connecting adjacent straight portions at each of both ends of each straight portion. The body has plural straight superposed portions each formed by mutually superposing the plural straight portions. A wound-up body has plural straight stack portions. The straight portions are fitted to respective fitting grooves of an alignment member, the fitting grooves being formed in the alignment member at intervals each corresponding to the size of a gap between adjacent straight stack portions. The integrated body is wound about a core member together with the alignment member, with the straight portions being fitted to the alignment member to form the wound-up body. | 01-07-2010 |
20100244617 | STATOR HAVING IMPROVED STRUCTURE FOR RESTRICTING RELATIVE DISPLACEMENT BETWEEN STATOR CORE AND STATOR COIL - A stator for an electric rotating machine includes a hollow cylindrical stator core and a stator coil made up of a plurality of electric wires mounted on the stator core. The stator core has a plurality of slots that are formed in a radially inner surface of the stator core and spaced at predetermined intervals in the circumferential direction of the stator core. The stator core also has a plurality of tooth portions each of which is formed to radially extend between one circumferentially-adjacent pair of the slots. Moreover, the stator core further has a plurality of displacement restricting portions each of which is formed, as an integral part of the stator core, on an axial end face of a corresponding one of the tooth portions of the stator core to restrict displacement of the stator coil relative to the stator core. | 09-30-2010 |
20110041319 | METHOD OF MANUFACTURING STATOR COIL - A plurality of shaped wires, which are obtained by shaping electric wires, are assembled to form a wire assembly | 02-24-2011 |
20110174038 | METHOD AND APPARATUS FOR ROLLING ELECTRIC WIRE FOR STATOR COIL OF ELECTRIC ROTATING MACHINE - Disclosed is an apparatus for rolling a substantially planar electric wire by more than one turn into a spiral shape. The apparatus includes an inner pressing member having an outer surface, an intermediate pressing member having radially inner and outer surfaces, and an outer pressing member having an inner surface. The inner and intermediate pressing members together press a first part of the electric wire between the outer surface of the inner pressing member and the inner surface of the intermediate pressing member, thereby plastically deforming the first part to extend along the outer surface of the inner pressing member. The intermediate and outer pressing members together press a second part of the electric wire between the outer surface of the intermediate pressing member and the inner surface of the outer pressing member, thereby plastically deforming the second part to extend along the outer surface of the intermediate pressing member. | 07-21-2011 |
20130014381 | METHOD OF MANUFACTURING STATOR COIL FOR ELECTRIC ROTATING MACHINEAANM KAYUKAWA; KimiharuAACI NagoyaAACO JPAAGP KAYUKAWA; Kimiharu Nagoya JPAANM DOBASHI; MasaomiAACI Kariya-shiAACO JPAAGP DOBASHI; Masaomi Kariya-shi JPAANM SHIMAOKA; HidejiAACI Anjo-shiAACO JPAAGP SHIMAOKA; Hideji Anjo-shi JPAANM KAMAKURA; YouichiAACI Anjo-shiAACO JPAAGP KAMAKURA; Youichi Anjo-shi JP - A method of manufacturing a stator coil includes the steps of: (1) forming substantially planar electric wires each including in-slot portions to be received in slots of a stator core and turn portions to be located outside of the slots to connect the in-slot portions; (2) rolling each of the planar electric wires into a spiral shape by plastically deforming the turn portions; and (3) assembling the rolled electric wires through relative axial movements therebetween, each of the relative axial movements being made by axially moving first and second components relative to each other with both the first and second components radially elastically deformed and with each of the first and second components circumferentially positioned by at least one positioning member, each of the first and second components being one of the rolled electric wires or an electric wire sub-assembly comprised of a plurality of the rolled electric wires. | 01-17-2013 |