Abstract: A stator in which the height of a coil end of a stator winding can be lowered is provided, and an electric rotating machine including such a stator is provided. In a stator of an electric rotating machine including a stator winding including neutral lines and output lines, the neutral lines are configured to include crawling portion extending circumferentially in the upper portion of a coil at the coil end, and the crawling portion includes an axial stepped portion. The output lines are configured to pass under the axial stepped portion in at least one location of three phases.

Abstract: The productivity of a rotary electric machine worsens because the axial length of a stator increases, increasing the overall size, and connecting parts are located on both end sides of a stator core. The rotary electric machine includes: a stator core; a stator winding including a plurality of segment coils; and a connection board that fixes a different-phase connection conductor adapted to connect different phases of the segment coils of the stator winding and a same-phase connection conductor adapted to connect the segment coils of the same phase of the stator winding. The stator winding has, on one side with respect to an axial direction of the stator core, a coil connection section where end portions of the plurality of segment coils are connected to each other, and the connection board is disposed on a side on which the coil connection section is disposed, with respect to the stator core.

Abstract: An object of the present invention is to provide a method of manufacturing a rotor of a rotating electrical machine with high reliability, in which an application amount of a liquid adhesive can be easily managed. A method of manufacturing a rotor of a rotating electrical machine according to the present invention is a method of manufacturing a rotor of a rotating electrical machine including a magnet and a rotor core 400 forming storage space for storing the magnet, the rotor core forming an opening 430 connected to the storage space. The method includes a first step of covering at least part of the opening with a first jig and a second jig having a non-adhesive resin film, a second step of putting an adhesive into the storage space, a third step of curing the adhesive in a state of being in contact with the non-adhesive resin film to form a plane surface facing an end ring of the rotating electrical machine, and a fourth step of separating the first jig and the second jig from the adhesive.

Abstract: This object is to secure a creepage insulation distance and improve insulation reliability. A stator core is formed as a housing, and is configured such that storage spaces for storing a plurality of segment coils are formed on an inner circumferential side of the housing in an axial direction of the housing and a plurality of the storage spaces is formed at intervals on the inner circumferential side of the housing. A plurality of coil support members is formed as annular members, and supports the plurality of segment coils. The coil support members each include a plurality of through-holes for inserting the segment coils, which is openings connected to the storage spaces, are separately disposed at both ends of the stator core in the axial direction, and each cover the inner circumferential side of the end portion of the stator core in the axial direction.

Abstract: A stator of a rotating electrical machine that can realize productivity growth, compared with a conventional technique is provided. A stator of a rotating electrical machine includes a slot; a plurality of coils disposed within the slot; and an insulator disposed around the coils within the slot. The insulator has an outer peripheral portion that surrounds the plurality of coils; and a bent portion that extends from the outer peripheral portion between the coils and that is folded back on a tip end.

Abstract: Provided is a permanent magnet-type rotary electric machine which reduces torque ripples which are generated when powered up and cause noises and vibrations of a rotary electric machine. The rotary electric machine includes a stator having a stator winding and a rotor which is rotatably disposed to the stator and provided with a plurality of magnets. In a magnetic auxiliary salient pole formed between poles of the magnets provided in the rotor, a cogging torque is reduced and torque ripples generated when powered up are reduced by combining a magnetic cavity provided on a q axis passing through the center of the salient pole and a skewing in which a plurality of block cores are stacked and connected as a unit while deviating by a predetermined angle in a peripheral direction of the axis of the rotor.

Abstract: An object is to assemble a housing to a mating bracket with high accuracy and to improve the reliability of a rotating electrical machine. A housing of a rotating electrical machine according to the present invention is a housing of a rotating electrical machine that accommodates a stator of the rotating electrical machine and is supported by a support member, the housing including: a first tab that forms a first through-hole through which a first screw passes; and a second tab that forms a second through-hole through which a second screw passes and forms a fitting portion that fits with a position adjustment member, wherein the first tab is formed such that a first facing surface facing the support member of the first tab is farther from the support member than a second facing surface facing the support member of the second tab.

Abstract: An electric machine capable of easily and efficiently assembling a rotor core to a rotating shaft is provided. A rotor core is formed by laminating a first steel plate consisting of one or more electromagnetic steel plates having a first protrusion portion to be accommodated in a groove portion of a rotating shaft and a second steel plate consisting of one or more electromagnetic steel plates having a second protrusion portion to be accommodated in the groove portion of the rotating shaft. The first protrusion portion of the first steel plate has a first engaging portion deformed by a side surface of the groove portion of the rotating shaft. At least a part of the first engaging portion of the first steel plate is disposed in a space formed between a second protrusion portion of the second steel plate and the side surface of a groove portion of the rotating shaft.

Abstract: A stator of a rotating electric machine includes a stator and a stator coil. The stator core has a plurality of slots. The stator coil is inserted into the plurality of slots. The stator coil includes two or more conductors. The two or more conductors are arranged such that a gap is generated between adjacent crossing conductors, the gap having a shape of a parallelogram.

Abstract: Provided are a coil having excellent insulation properties, a rotating electrical machine equipped with the same, and a method for manufacturing the same. The coil (60) has a covered portion where a conductive body (602) is covered with an insulating film (612) and a stripped portion where the insulating film is stripped off, and the stripped portion is electrophoretically coated with a resin material (601). The coil (60) may have a configuration wherein segment conductors (28) each having a covered portion and stripped portion are included, connection parts are formed by the stripped portions of two different segment conductors (28) being connected at coil ends (62), and the thickness of the resin material (601) is no more than the thickness of the insulating film (612) at the boundary portion (630) between the covered portion and the stripped portion.

Abstract: Provided is a rotary electric machine housing and a rotary electric machine equipped with the same. The housing allows the reduction of press fitting force required in each of two press fitting steps and has a high cooling effect. This rotary electric machine housing includes an internal cylinder 10 allowing press fitting of a stator 20 along an inner diameter end of the internal cylinder. The internal cylinder 10 has an internal cylinder-side tapered face on its outer diameter end surface. The housing further includes an external cylinder 11 having an external cylinder-side tapered face on an inner diameter end of the external cylinder. The external cylinder-side tapered face fits onto the internal cylinder-side tapered face.

Abstract: Provided are: a rotating-electrical-machine stator in which the height of coil ends of a stator coil is suppressed, while interference between adjacent conductors at the coil ends is avoided; and a rotating electrical machine provided with same. The rotating-electrical-machine stator is provided with: a stator core provided with a plurality of slots; and a stator coil inserted into the slots. The rotating-electrical-machine stator is characterized in that: the stator coil is provided with at least two conductors which are disposed in the same layer as a first conductor, and which are inserted into the slots adjacent to the first conductor; and the shapes of coil protrusions protruding radially outwards are configured so as to form arcs.

Abstract: In a rotor, a permanent magnet 300 is an angulated pillar member of which the cross section perpendicular to the rotor shaft center is rectangular, and includes two pairs of facing side surfaces 310 to 340 which extend along the rotor shaft center, and the paired-up side surfaces 310 and 320 are provided such that one side surface is provided on a side near the rotor shaft center and the other one is provided on the outer peripheral side of the rotor. In the magnet storage slot 200A, a protruding portion 210 is provided which protrudes from an inner peripheral surface of the slot and abuts on a side surface 310 on a side near the rotor shaft center of any pair of side surfaces 310 and 320 in the two pairs.

Abstract: A stator of a rotating electrical machine that can realize productivity growth, compared with a conventional technique is provided. A stator of a rotating electrical machine includes a slot; a plurality of coils disposed within the slot; and an insulator disposed around the coils within the slot. The insulator has an outer peripheral portion that surrounds the plurality of coils; and a bent portion that extends from the outer peripheral portion between the coils and that is folded back on a tip end.

Abstract: Provided are a coil having excellent insulation properties, a rotating electrical machine equipped with the same, and a method for manufacturing the same. The coil (60) has a covered portion where a conductive body (602) is covered with an insulating film (612) and a stripped portion where the insulating film is stripped off, and the stripped portion is electrophoretically coated with a resin material (601). The coil (60) may have a configuration wherein segment conductors (28) each having a covered portion and stripped portion are included, connection parts are formed by the stripped portions of two different segment conductors (28) being connected at coil ends (62), and the thickness of the resin material (601) is no more than the thickness of the insulating film (612) at the boundary portion (630) between the covered portion and the stripped portion.

Abstract: A dynamo-electric machine reduces the increase in temperature of a stator close to a cooling liquid outlet and a stator end portion, and that has excellent cooling performance. The dynamo-electric machine is provided with: a stator, a rotor that is held on the inner-diameter-side of the stator across a predetermined gap so as to be capable of rotating; and a housing that is located on the outer-diameter-side of the stator and holds the stator and the rotor. The housing is provided with a cooling liquid channel through which a cooling liquid flows, the radial height of the cooling liquid channel within the housing differing depending on the axial position of the rotor.

Abstract: A method of manufacturing a heat-fixing rubber roller includes: forming a rubber layer of a silicone rubber composition on an outer periphery of a metal core shaft, the composition containing water-soluble sugar powder and methylene glycol; vulcanizing the rubber layer; and eluting the sugar powder and the triethylene glycol from the vulcanized rubber layer to form a foam rubber layer.

Abstract: An electric machine capable of easily and efficiently assembling a rotor core to a rotating shaft is provided. A rotor core is formed by laminating a first steel plate consisting of one or more electromagnetic steel plates having a first protrusion portion to be accommodated in a groove portion of a rotating shaft and a second steel plate consisting of one or more electromagnetic steel plates having a second protrusion portion to be accommodated in the groove portion of the rotating shaft. The first protrusion portion of the first steel plate has a first engaging portion deformed by a side surface of the groove portion of the rotating shaft. At least a part of the first engaging portion of the first steel plate is disposed in a space formed between a second protrusion portion of the second steel plate and the side surface of a groove portion of the rotating shaft.

Abstract: Provided are a coil having excellent insulation properties, a rotating electrical machine equipped with the same, and a method for manufacturing the same. The coil (60) has a covered portion where a conductive body (602) is covered with an insulating film (612) and a stripped portion where the insulating film is stripped off, and the stripped portion is electrophoretically coated with a resin material (601). The coil (60) may have a configuration wherein segment conductors (28) each having a covered portion and stripped portion are included, connection parts are formed by the stripped portions of two different segment conductors (28) being connected at coil ends (62), and the thickness of the resin material (601) is no more than the thickness of the insulating film (612) at the boundary portion (630) between the covered portion and the stripped portion.

Abstract: The productivity of a rotary electric machine worsens because the axial length of a stator increases, increasing the overall size, and connecting parts are located on both end sides of a stator core. The rotary electric machine includes: a stator core; a stator winding including a plurality of segment coils; and a connection board that fixes a different-phase connection conductor adapted to connect different phases of the segment coils of the stator winding and a same-phase connection conductor adapted to connect the segment coils of the same phase of the stator winding. The stator winding has, on one side with respect to an axial direction of the stator core, a coil connection section where end portions of the plurality of segment coils are connected to each other, and the connection board is disposed on a side on which the coil connection section is disposed, with respect to the stator core.