| Patent application number | Description | Published |
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| 20090260217 | METHOD OF MANUFACTURING COIL ASSEMBLY - A method of manufacturing a coil assembly of a rotary electric machine is disclosed wherein first and second coil wire segments are located on an axis direction in opposition to each other to allow first turn portions of the first and second coil wire segments to intersect with each other (in locating step). Engaging movement, composed of a forward transferring movement, a rotating movement and a translating movement, is conducted on the second coil wire segment with respect to the first coil wire segment to allow the first turn portion of the second coil wire segment to engage a second turn portion of the first coil wire segment (first engaging step). Conducting the engaging movement allows to engage a third turn portion of the first coil wire segment (second engaging step). | 10-22-2009 |
| 20090260219 | METHOD OF MANUFACTURING COIL FOR STATOR INCORPORATED IN ROTARY ELECTRIC MACHINE - A method is provided for manufacturing a stator coil for a rotary electric machine, which is formed by winding up a plurality of phase wires. The method includes a shaping step for shaping a plurality of shaped wire members from electrically conductive wires, an integrating step for integrating the plurality of shaped wire members with each other to form an integrated body, and a winding-up step for winding the integrated body about a core member to form a wound body. At the winding-up step, curve forming is performed by plastically deforming turn portions of the integrated body into a curved shape, during conveyance of feeding the integrated body to the core member. | 10-22-2009 |
| 20090313810 | METHOD OF MANUFACTURING COIL ASSEMBLY OF STATOR OF ELECTRIC ROTATING MACHINE - The method is for manufacturing a coil assembly of a stator of an electric rotating machine constituted by a plurality of interlaced coil wires each including a plurality of in-slot portions and a plurality of turn portions each of which connects adjacent two of the in-slot portions. The method includes a setting step of setting coil wires such that they are located on a circle and extend in parallel, and a plurality of shaping steps performed repeatedly for interlacing the coil wires into a doughnut shape. | 12-24-2009 |
| 20090322167 | ELECTRIC ROTATING MACHINE WITH MEANS FOR FEEDING COOLING LIQUID TO ITS STATOR WINDING - The electric rotating machine includes a rotor, a stator having a stator core and a stator winding wound on the stator core, and a cooling liquid feeding function of applying cooling liquid to the coil end of the stator winding. The stator winding constituted by coils wound along the circumferential direction includes crossover portions each of which electrically connects the ends of two of the coils through which currents in the same phase flow, respectively. The crossover portions are arranged so as to overlap one another only partially in the circumferential direction. The cooling liquid feeding function applies the cooling liquid to at least one of the crossover portions. | 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 |
| 20100064505 | METHOD OF MANUFACTURING STATOR FOR DYNAMOELECTRIC MACHINE - There is disclosed a method of manufacturing a stator for a dynamoelectric machine. The method includes a step of mounting a hollow cylindrical electric wire assembly, which includes a plurality of straight stacked portions of shaped electric wires, to a hollow cylindrical stator core that includes a plurality of slots formed in the radially inner surface thereof. The mounting step includes: (1) placing the electric wire assembly radially inside of the stator core so that each of the straight stacked portions of the electric wire assembly is radially aligned with a corresponding one of the slots of the stator core; and (2) radially expanding the electric wire assembly to insert the straight stacked portions of the electric wire assembly into the corresponding slots of the stator core. | 03-18-2010 |
| 20100117480 | STATOR FOR DYNAMOELECTRIC MACHINE AND METHOD OF MANUFACTURING SAME - A stator for a dynamoelectric machine includes a stator core and a stator coil. The stator coil is made up of wave-shaped electric wires mounted on the stator core. Each of the electric wires has in-slot portions, each of which is received in one of slots of the stator core, and connecting portions each of which is located outside of the slots to connect one adjacent pair of the in-slot portions. Each of the connecting portions includes an apex part that is located axially furthest in the connecting portion from the stator core and includes an oblique section extending obliquely with respect to the radial direction of the stator core. Further, the oblique sections of the electric wires on one side of the stator core in the axial direction of the stator core are oblique in the same direction as those on the other side of the stator core. | 05-13-2010 |
| 20100125999 | METHOD OF FORMING COIL ASSEMBLY FOR STATOR - The method of manufacturing a coil assembly for a stator formed with slots includes a coil wire combination forming step of forming a band-like coil wire combination by overlapping a plurality of coil wires while forming them with in-slot portions to be accommodated in the slots and turn portions each connecting each adjacent two of the in-slot portions, and a shaping step of shaping the band-like coil wire combination into a cylindrical shape by helically winding the band-like coil wire combination. The coil wire combination forming step is carried out by performing an interlaced part forming step of forming an interlaced part by overlapping the coil wires with each adjacent two of the coil wires intersecting with each other and a non-interlace part forming step of forming an interlaced part by overlapping the coil wires with each adjacent two of the coil wires not intersecting with each other. | 05-27-2010 |
| 20100148620 | STATOR FOR ELECTRIC ROTATING MACHINE - A stator for an electric rotating machine includes a hollow cylindrical stator core and a stator coil made up of a plurality of wave-shaped electric wires. Each of the electric wires has a plurality of in-slot portions, each of which is received in one of slots of the stator core, and a plurality of turn portions each of which is located outside of the slots of the stator core to connect one adjacent pair of the in-slot portions of the electric wire. The stator coil includes a plurality of radial position shift portions each of which is provided, in one of the electric wires, in one of the turn portions of the electric wire between an apex part of the turn portion and one of the in-slot portions of the electric wire adjoining the turn portion and is radially bent to shift the radial position of the electric wire. | 06-17-2010 |
| 20100148621 | STATOR FOR ELECTRIC ROTATING MACHINE - A stator includes a hollow cylindrical stator core and a stator coil made up of wave-shaped electric wires. Each of the electric wires has in-slot portions, which are received in slots of the stator core, and turn portions that are located outside of the slots to connect the in-slot portions. The stator coil includes first crank-shaped portions and second crank-shaped portions. Each of the first and second crank-shaped portions is provided, in one of the electric wires, at the center of an apex part of one of the turn portions and is radially bent to shift the radial position of the electric wire. The amount of radial position shift made by each of the second crank-shaped portions is less than that made by each of the first crank-shaped portions. The second crank-shaped portions are located at a plurality of places in the circumferential direction of the stator core. | 06-17-2010 |
| 20100270887 | STATOR WITH RESTRAINTS FOR RESTRAINING RELATIVE RADIAL MOVEMENT BETWEEN TURN PORTIONS OF ELECTRIC WIRES - A stator includes a stator core, a stator coil comprised of a plurality of electric wires, and at least one restraint. Each of the electric wires has a plurality of in-slot portions received in slots of the stator core and a plurality of turn portions that are located outside of the slots to connect the in-slot portions. The restraint is mounted to end parts of the turn portions belonging to a turn portion group of the electric wires to restrain relative radial movement between the turn portions of the turn portion group. All the turn portions of the turn portion group protrude from the same slot of the stator core. The end parts of the turn portions respectively adjoin the in-slot portions of the electric wires received in the same slot of the stator core and align with each other in a radial direction of the stator core. | 10-28-2010 |
| 20110000078 | METHOD OF MANUFACTURING STATOR COIL - During sending the combined body | 01-06-2011 |
| 20110012450 | STATOR FOR ELECTRIC ROTATING MACHINE - A stator includes a stator core and a multi-phase stator coil comprised of a plurality of electric wires. Each of the electric wires has first, second, . . . , nth in-slot portions and first, second, . . . , (n−1)th turn portions, where n is an integer not less than 4. The first in-slot portions of the electric wires are located most radially outward and the nth in-slot portions are located most radially inward in the slots of the stator core. Each of the electric wires also has a first end portion positioned on the first in-slot portion side and a second end portion positioned on the nth in-slot portion side. Each of phase windings of the stator coil is formed of at least two of the electric wires. The first end portion of one of the two electric wires is connected to the second end portion of the other electric wire. | 01-20-2011 |
| 20110012472 | STATOR FOR ELECTRIC ROTATING MACHINE AND METHOD OF MANUFACTURING SAME - A stator includes a stator core and a stator coil comprised of a plurality of electric wires. Each of the electric wires has, at least, first, second, and third in-slot portions and first and second turn portions. The first to third in-slot portions are respectively received in three different slots of the stator core. The first turn portion is located on one axial side of the stator core outside of the slots to connect the first and second in-slot portions. The second turn portion is located on the other axial side of the stator core outside of the slots to connect the second and third in-slot portions. For each of the electric wires, the radial distances of the first to third in-slot portions from the axis of the stator core successively decrease. All of the electric wires are offset from one another in the circumferential direction of the stator core. | 01-20-2011 |
| 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 |
| 20110080064 | STATOR OF ELECTRIC ROTATING MACHINE - The stator of an electric rotating machine includes a stator core constituted of a plurality of split cores joined to one another in a ring, a plurality of phase windings wound around the stator core, and an outer casing to an inner periphery of which an outer periphery of the stator core is fitted with clamping margin therebetween. The outer casing is provided with a brim including at least two brim portions at at least one of axial ends thereof. The brim portions are spaced from each other in a circumferential direction of the outer casing and project in a direction receding from a center axis of the outer casing. | 04-07-2011 |
