Abstract: Winding bodies are configured such that radially inner terminals of a conductor wire extend outward at a first axial end of an armature core from a radially innermost position inside slots, and radially outer terminals of the conductor wire extend outward at the first axial end of the armature core from a radially outermost position inside the slots, and respective phase windings of an armature winding are configured by directly joining together the radially inner terminals and by directly joining together the radially outer terminals of the winding bodies that constitute identical phases.

Abstract: The armature winding is configured by mounting into slot pairs n types of winding bodies that are each configured by winding a conductor wire for m turns into a helical shape, where m is a natural number that is greater than or equal to two, the n types of winding bodies have different spacings between rectilinear portions that are linked by coil ends, are housed in n adjacent pairs of slot pairs, and are configured so as to be concentric, the coil ends include a top portion at an approximately central portion, and the radial displacement at the top portion is approximately a×d, where a is a natural number that is greater than or equal to 1 and less than or equal to (m?1), and d is a radial thickness of the rectilinear portions that are housed inside the slots.

Abstract: First and second winding bodies are each configured so as to have a helical shape by winding a conductor wire for m turns, where m is a natural number that is greater than or equal to two, an armature winding is configured by mounting two-lane winding bodies into respective pairs of slots, two-lane winding bodies being configured by assembling the first and second winding bodies, the coil ends include a top portion that displaces in a radial direction at a central portion, and the radial displacement at the top portion is a×d, where a is a natural number that is greater than or equal to 2 and less than or equal to 2×(m?1), and d is a radial thickness of the rectilinear portions, 4×m of the rectilinear portions being housed inside the slots so as to line up in single columns.

Abstract: Coils that constitute an armature winding are produced by winding a conductor wire that has a rectangular cross section, the coils each include: four rectilinear portions that are inserted into a pair of slots; and three coil end portions that link the four rectilinear portions consecutively by each connecting together end portions of two selected rectilinear portions, the coils being mounted into the armature core so as to be arranged at a pitch of one slot in a circumferential direction, the coil end portions include: a bulging portion that protrudes axially outward in a convex shape; and oblique portions that link the two connected rectilinear portions and the bulging portion, the bulging portion has a crank portion that displaces radial positions of the two connected rectilinear portions by a set amount, and a cross-sectional area of the bulging portion is smaller than a cross-sectional area of the oblique portions.

Abstract: In a rotary electric machine according to the present invention, an armature winding includes a plurality of distributed winding bodies that are each produced by winding a single conductor wire that is insulated, that is jointless and continuous, and that has a constant cross-sectional area perpendicular to a longitudinal direction, the conductor wires include first through third coil end portions that link first through fourth rectilinear portions and first through fourth rectilinear portions, and are formed such that radial widths w? of the first through fourth rectilinear portions are wider than radial widths w of the first through third coil end portions.

Abstract: This armature of a rotary electric machine includes: a back yoke portion formed in an annular shape; a plurality of tooth portions formed at an interval in a circumferential direction of the back yoke portion, the plurality of tooth portions protruding in a radial direction; and a coil disposed in a plurality of slots each formed between the tooth portions that are adjacent to each other, and has an insulating portion disposed so as to surround the coil between each slot and the coil and formed from a sheet member, wherein the insulating portion includes lamination portions) in which edges of the sheet member overlap each other, and joint portions in which the lamination portions protrude in both sides in an axial direction to be joined.

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: An armature for an electric machine according to the present invention includes: an armature core in which a plurality of slots are arranged in a circumferential direction; and an armature winding that is mounted to the armature core, and includes a plurality of two-lane winding bodies that are each produced by stacking and winding two jointless continuous conductor wires that are coated with insulation such that the two conductor wires are stacked in a radial direction of the armature core, the two-lane winding bodies being arranged at a pitch of one slot in a circumferential direction so as to be mounted into a third slot, a first slot, and a second slot that line up consecutively in the circumferential direction at an angular spacing of six slots.

Abstract: A core is formed of an outer core forming a yoke portion and an inner core forming tooth portions and connection portions. The outer core is divided in a circumferential direction. A first fitting portion for fitting the outer core and the inner core to each other is formed in the outer core and the inner core. Fitting surfaces in a radial direction of the first fitting portion are formed as surfaces parallel to the radial direction at a center position in the circumferential direction of the divided outer core.

Abstract: A side surface at the outside of a plurality of teeth portions of one separated core is faced to a side surface of teeth portions of an adjacent separated core, so as to form a second slot which is straddled between the adjacent separated cores, and a first slot is formed by a plurality of teeth portions of one separated core, and a width size of the first slot is identical to a width size of the second slot, and coil conductor storage space is formed in the first slot via a first insulating component, and coil conductor storage space is formed in the second slot via a second insulating component, and a thickness size of the first insulating component is different from a thickness size of the second insulating component.

Abstract: A stacked iron core for an armature includes: an annular iron core piece having first iron core piece tooth portions, and connecting portions each for connecting circumferential ends of an end portion on an inner circumference side of each of the first iron core piece tooth portions; and an iron core piece stacked between the first iron core piece tooth portions of two of the annular iron core pieces, the iron core piece including: a second iron core piece tooth portion having an identical shape to that of the first iron core piece tooth portion; and flange portions protruding to both sides in a circumferential direction from an inner-circumference-side end of the second iron core piece tooth portion, and the iron core piece is separated from the iron core piece adjacent thereto in the circumferential direction, the connecting portion has a width y that is constant in a radial direction.

Abstract: An annular conductor retaining device has a retention guide portion formed by blades arranged in a cylindrical shape with gaps therebetween. An annular conductor is inserted into two of the gaps across a plurality of the blades. The next annular conductor is inserted into the gaps to partially overlap the previously arranged annular conductor. This step is repeated so that the annular conductors are arranged in a spiral shape in the retention guide portion. The retention guide portion and the inner circumferential part of the core are fitted to each other, and the gaps and the slots of the core are made to coincide with each other. A pusher is inserted into the inner circumferential part of the retention guide portion so that the annular conductors are caught on the pusher, to move them in the axial direction into the slots of the core, and thus become the coils.

Abstract: In a core for a rotary electric machine, first end portions of back yoke portions are linked to second end portions of back yoke portions of adjacent core segments so as to be rotatable around pivot portions. Each of the core segments is configured by alternately laminating first core segment sheets and second core segment sheets. The pivot portions are constituted by interfitting protruding portions that are formed on the first core segment sheets. The core segments are displaceable relative to the adjacent core segments between a contracted position in which spacing between the magnetic pole tooth portions is contracted and an expanded position in which spacing between the magnetic pole tooth portions is expanded, when the core segment linked body is opened out rectilinearly.

Abstract: A stator is assembled by stacking, in the axial direction, a plurality of magnetic steel sheets having tooth portions. The steel sheets include connected tooth steel sheets in which the inner-circumferential-side end portions of the tooth portions are connected via connection portions in an annular shape along the circumferential direction, and non-connected tooth steel sheets which are separated from each other with the tooth portions not connected to each other. The connected tooth steel sheets and the non-connected tooth steel sheets are joined to each other in the axial direction via swage portions provided in the tooth portions. The thickness of each connection portion is smaller than the thickness of the other part of each steel sheet.

Abstract: This rotor includes: a rotor core in which a plurality of insertion holes each penetrating the rotor core in an axial direction are formed with intervals interposed thereamong in a circumferential direction; and magnets respectively provided in the insertion holes, wherein a hole-inside-peripheral-surface of each insertion hole does not contact with a magnet-inside-peripheral-surface of a corresponding one of the magnets, a hole-outside-peripheral-surface of the insertion hole and a magnet-outside-peripheral-surface of the magnet contact with each other at two locations of a first location and a second location, an adhesive layer portion is formed between the first location and the second location and between the hole-outside-peripheral-surface of the insertion hole and the magnet-outside-peripheral-surface of the magnet, and a first protruding portion which protrudes toward outside in a radial direction and which contacts with the magnet is formed at the hole-inside-peripheral-surface of the insertion hole.

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 rotating electric machine includes: a stator having an armature core having slots formed between magnetic pole teeth, and a plurality of coils each of which is wound so as to straddle a plurality of the magnetic pole teeth; and a rotor including a plurality of permanent magnets disposed at certain intervals on an outer peripheral surface of the magnetic yoke, and the coils include an armature coil for driving the rotating electric machine and a non-armature coil for magnetizing or demagnetizing the permanent magnets of the rotor.

Abstract: Provided are: a back yoke portion formed in an annular shape; a plurality of tooth portions arranged annularly on an inner periphery of the back yoke portion and forming a plurality of slots that are spaced apart in a circumferential direction and open on an outer peripheral side, the plurality of tooth portions being fitted to an inner peripheral surface of the back yoke portion; a coil housed in the plurality of slots; and a wedge disposed between the coil and the back yoke portion, at an opening of each of the plurality of slots.

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.