Abstract: X1>X2 and X3<X4 are satisfied when a distance in a radial direction at an axial end portion of the armature core between two slot-housed portions adjacent to each other and connected to two slot lead-out portions bent along a circumferential direction in the same direction is denoted by X1, a distance in the radial direction between the slot lead-out portions is denoted by X2, a distance in the radial direction at the axial end portion of the armature core between two slot-housed portions adjacent to each other and connected to two slot lead-out portions bent along the circumferential direction in directions opposite to each other is denoted by X3, and a distance in the radial direction between the two slot lead-out portions bent along the circumferential direction in the directions opposite to each other is denoted by X4.

Abstract: A unit coil includes: first, second, third, and fourth turn portions extending in a bent manner from first, second, third, and fourth slot accommodation portions and each connecting the slot accommodation portions to each other; and first, second, third, and fourth leg portions. Recesses are formed in surfaces opposed to each other at bent parts of the turn portions or bent parts of the turn portion and the leg portion, that extend in a bent manner toward the same side in the circumferential direction from the slot accommodation portions adjacent to each other in the radial direction.

Abstract: A stator winding includes forty-eight winding bodies 22 that are each produced by winding a jointless continuous conductor wire that is coated with insulation, and that are arranged at a pitch of one slot in a circumferential direction so as to be mounted into a first slot 131, a second slot 132, and a third slot 133 that are circumferentially consecutive at an angular spacing of six slots. The winding bodies 22 are configured into a ?-shaped coil pattern that is formed by inserting the conductor wire 19 sequentially into the first slot 131, the second slot 132, the third slot 133, and the second slot 132, so as to alternate an axial direction of insertion into the first slot 131, the second slot 132, and the third slot 133.

Abstract: A U-phase coil that constitutes the armature winding includes four (first through fourth) small coil groups U101, U102, U201, and U202 that make approximately one round circumferentially that are formed by connecting in series in order of circumferential arrangement winding bodies that are housed in slot pairs that are separated by 360 electrical degrees. The U-phase coil is configured by consecutively or alternately connecting the four first through fourth small coil groups U101, U102, U201, and U202 in series such that two of the small coil groups that are housed in identical slots are positioned.

Abstract: In the electric machine according to the present invention, conductor wires are housed inside slots so as to be arranged into multiple layers in one column so as to contact each other in a slot depth direction in each column such that a longitudinal direction of a long side of an oblong cross section of a conductor portion faces in the slot depth direction, and a thickness of a portion of an insulating coating that is formed on a surface of the conductor portion that faces in the slot depth direction is thinner than a thickness of a portion of the insulating coating that is formed on a surface of the conductor portion that faces in a direction of slot arrangement.

Abstract: A laminated core manufacturing method is linearly arranging and punching out a plurality of separate core pieces formed of a back yoke portion and a magnetic-pole teeth portion protruding from the back yoke portion and die-cut caulking. The manufacturing method includes: a first step of punching out a first region located on an opposite side to the magnetic-pole teeth portion between adjacent ends of the back yoke portions of the core pieces; a second step of punching out a second region located on a side of the magnetic-pole teeth portion between the adjacent ends of the back yoke portions of the core pieces; a third step of punching out a region that brings the first region punched out in the first step and the second region punched out in the second step into communication; and a fourth step of forming the magnetic-pole teeth portion by punching.

Abstract: Provided is a nonaqueous electrolyte secondary battery 10 which, in cases where separators 70 each having a heat-resistant layer 74 on only one face thereof are used, has an excellent thermal stability and thus a higher safety and reliability when the battery 10 reaches a high temperature. Such a nonaqueous electrolyte secondary battery 10 includes a positive electrode 30 in which a positive electrode active material layer 34 is provided on both faces of a positive electrode current collector 32, a negative electrode 50 in which a negative electrode active material layer 54 is provided on both faces of a negative electrode current collector 52, at least two separators 70 each having a heat-resistant layer 74 on one face of a base material 72, and an electrolyte. The nonaqueous electrolyte secondary battery has an electrode assembly 20 in which the positive electrode 30 and the negative electrode 50 are stacked on top of one another with the separators 70 interposed therebetween.

Abstract: Four layers of first coil rows formed by arranging first coil ends at a pitch of one slot in a circumferential direction are arranged in a radial direction to configure a first coil end group, three layers of second coil rows formed by arranging second coil ends at a pitch of one slot in a circumferential direction are arranged in a radial direction to configure a first coil end group, a cylindrical first insulating paper is housed inside the first coil end rows and inside the second coil end rows, and a cylindrical second insulating paper is housed between the first coil end rows and between the second coil end rows.

Abstract: A rotary electric machine includes a stator in which a plurality of armatures each have a coil formed by a winding wire wound in plural layers around bobbins mounted to a magnetic pole tooth, which are disposed annularly on an inner circumference of a cylindrical frame. The coil is formed by the winding wire being wound with a constant feed pitch in parallel with slots of the bobbins in plural layers. The winding wire forming a first layer of the coil is shifted by half the feed pitch between a left side and a right side of a center axis of the coil as viewed from a plane perpendicular to a stacking direction of a stacked iron core.

Abstract: A stator in which stator coils are formed by a plurality of unit coils arranged so as to be shifted from each other in the circumferential direction and each having: a first slot-accommodated portion; a second slot-accommodated portion; a first terminal wire extending from the first slot-accommodated portion; a second terminal wire extending from the second slot-accommodated portion and shifted from the first terminal wire by one line of a conductive wire; a terminal-side coil end portion; and first and second anti-terminal-side coil end portions, wherein the first terminal wire and the second terminal wire of the respective different unit coils are joined with each other.

Abstract: Bridge portions forming coil end portions, at both ends in an axial direction, of a stator of the rotating electrical machine according to the present invention are configured coaxially about an axis of the stator; at least one bridge portion of the bridge portions of each coil at both ends in the axial direction is located outward of an inner peripheral surface of the stator; and a gap is present between an end surface of a stator core in the axial direction and each bridge portion.

Abstract: A method for manufacturing a winding body includes: a bulging portion forming step in which bulging portions are formed by bending at a set pitch on a conductor wire; a crank portion forming step in which the crank portions are formed by bending on central portions of the bulging portions; an inclined portion and rectilinear portion forming step in which inclined portions and rectilinear portions are formed by bending on the conductor wire on which the bulging portions are formed at a set pitch and on which the crank portions are formed on each of the bulging portions after completion of the bulging portion forming step and the crank portion forming step; and a circular arc portion forming step in which the inclined portions are bent and formed into a circular arc shape.

Abstract: Provided is a rectangular wire edgewise-bending processing device for performing an edgewise-bending process for a rectangular wire to form a coil, the rectangular wire edgewise-bending processing device including a fixing unit for fixing the rectangular wire, a pressing tool for pressing a surface formed by a long side of a rectangular cross section of the rectangular wire, and a bending tool for bending the rectangular wire into a predetermined coil shape, wherein the edgewise-bending process is performed while the surface formed by the long side of the rectangular cross section of the rectangular wire is pressed.

Abstract: A U-phase coil that constitutes an armature winding includes four (first through fourth) small coil groups U101, U102, U201, and U202 that make one round circumferentially, that are formed by connecting in series in order of circumferential arrangement winding bodies that are housed in slot pairs that are separated by 360 electrical degrees. The U-phase coil is configured into a parallel circuit in which the first and fourth small coil groups U101 and U202, which are connected in series, and the second and third small coil groups U102 and U201, which are connected in series, are connected in parallel by linking together winding ends within a radially inner winding end group using crossover wires 711 and 721, and by linking together winding ends within a radially outer winding end group using a crossover wire 821.

Abstract: In this method for manufacturing an armature winding for an electric machine, a rectangular conductor wire is wound helically by bending and shaping linking portions between rectilinear portions and coil ends to set angles while feeding the rectangular conductor wire, by repeating steps in which the rectangular conductor wire is fed by a set amount of feeding, the rectangular conductor wire is gripped and fixed by first through fourth chucks, the rectangular conductor wire is bent by pressing a first former near a root of the rectangular conductor wire, and gripping and fixing of the rectangular conductor wire by the first through fourth chucks is released.

Abstract: Provided are an armature for rotary electric machine, an insulator therefor, and a coil winding device for winding a conductive wire on a tooth to which the insulator has been attached, wherein in each of all forward-wound coils and reversely-wound coils, a part wound on a first side surface of two side surfaces of each tooth that are opposed to the respective adjacent teeth forms a straight portion in which conductive wires in respective layers of the coil are parallel, a part wound on a second side surface forms a cross portion in which the conductive wire in an upper layer is wound in a crossed manner on the conductive wire in an adjacent lower layer, and an insulator has a guide for guiding the conductive wire along a base of an inner flange of the insulator at a first turn of each coil.

Abstract: A rotating electric machine with a built-in control device that can be downsized. The rotating electric machine with a built-in control device includes a rotor including a permanent magnet of sensor use provided on a rear side of a rotor shaft, a front side housing fixed with a first bearing supporting a front side of the rotor shaft, a motor frame including a rotor and a stator, a heat sink fixed with a second bearing supporting the rear side of the rotor shaft, a control substrate mounting a rotary sensor, a microcomputer, and a driving circuit. The microcomputer controls the driving circuit based on signals from the rotary sensor and drives a plurality of switching elements. At least one of a smoothing condenser and a noise reduction coil, connected to the switching elements, is arranged at a far rear side of the control substrate.

Abstract: A nonaqueous electrolyte secondary battery (10) includes a porous film (78) (heat resistance layer (HRL)) in, which particles (filler F) of an insulating ceramic are attached through a binder onto a surface of at least one of a negative electrode active material layer (63) and a separator (72, 74). In the nonaqueous electrolyte secondary battery, the insulating ceramic of the porous film (78) contains at least one of Fe and Ni.

Abstract: A cold-welded conductor wire has a connection portion formed by a first conductor wire and a second conductor wire being connected by cold welding, and has: a bent portion bent at a location different from the connection portion; and an insulating case formed by an insulating sheet wrapping the connection portion and being bonded.

Abstract: A contour line on the outer circumferential side of each magnet hole in the first layer is formed to be an arc passing through a total of three intersections, i.e., an intersection of a d axis and a reference magnetic flux line which is a magnetic flux line as a reference positioned inward by a predetermined number of magnetic flux lines from the outer circumferential edge of a rotor core, and intersections of: the reference magnetic flux line; and sides at the circumferential ends of the magnet hole which are positioned inward by a bridge dimension from the outer circumferential edge of the rotor core. Thus, a rotary electric machine that enables maximum utilization of reluctance torque and magnet torque and suppression of torque ripple can be obtained with simple processing and low cost.