Systems and methods for forming insulation on magnet wire are provided. An extruder that includes one or more rotating screws may receive a thermoset polymeric material and process the thermoset polymeric material to increase its pressure and temperature. An extrusion crosshead assembly in fluid communication with the extruder may receive the thermoset polymeric material and press extrude the thermoset polymeric material as insulation onto a magnet wire. A curing device may then cure the extruded insulation material.

A compressor includes a stator core that includes a yoke portion and a teeth portion, a rotor that is arranged inside the stator core, a compression unit that compresses a refrigerant along with rotation of the rotor relative to the stator core, a container that has an internal space in which the stator core and the compression unit are arranged, a winding that is wound around the teeth portion, and an insulating film that is arranged in the slot so as to separate the winding from the stator core, wherein a welding portion that is fixed to the container by welding is formed on a side surface of the yoke portion on an outer diameter side, and a sheet that is sandwiched between the yoke portion and the insulating film is arranged in the slot that corresponds to the welding portion in a circumferential direction of the stator core.

The stator of the rotating electric machine according to an embodiment of the present invention, the stator comprising: a stator coil formed by electrically connecting a plurality of hairpins in a preset pattern. Each of the plurality of hairpins includes a conductor and an insulating coating film covering the conductor. Each of the plurality of hairpins comprises: a first protruding part having a first stripped portion formed on one side by removing the insulating coating film and a second protruding part protruding from the stator core, and connected to the first stripped portion. A second stripped portion is formed on the second protruding part. An electrically-connected part is formed by electrically coupling the first stripped portion and the second stripped portion. The electrically-connected part is provided in plurality spaced apart from one another along a circumferential direction of the stator core, and wherein among portions of two electrically-connected parts adjacent to each other in the circumferential direction of the plurality of electrically-connected parts, portions located at the same distance from the one side surface of the stator core have shortest distances therebetween, which are set to have difference values included in a preset range value.

The stator of the rotating electric machine according to an embodiment of the present invention, the stator comprising: a stator coil formed by electrically connecting a plurality of hairpins in a preset pattern. Each of the plurality of hairpins includes a conductor and an insulating coating film covering the conductor. Each of the plurality of hairpins comprises: a first protruding part having a first stripped portion formed on one side by removing the insulating coating film and a second protruding part protruding from the stator core, and connected to the first stripped portion. A second stripped portion is formed on the second protruding part. An electrically-connected part is formed by electrically coupling the first stripped portion and the second stripped portion. The electrically-connected part is provided in plurality spaced apart from one another along a circumferential direction of the stator core, and wherein among portions of two electrically-connected parts adjacent to each other in the circumferential direction of the plurality of electrically-connected parts, portions located at the same distance from the one side surface of the stator core have shortest distances therebetween, which are set to have difference values included in a preset range value.

An electric machine comprising a rotor having a rotor body. The rotor body has multiple poles each carrying at least one rotor winding formed from multiple conductor loops. The poles extend in a radial direction of the rotor and the conductor loops pass through slots each formed between two adjacent poles. A support element extending in the radial direction is arranged in each of the slots between the rotor windings of the adjacent poles. The support element applies pressure to the conductor loops when the rotor rotates and/or heats up. A pressure distribution element extending at least in portions in the radial direction along the support element and the adjacent rotor winding is arranged between the support element and the rotor windings, which pressure distribution element distributes the pressure applied by the support element onto the adjacent rotor winding.

In a stator, coils of multiple phases are wound around a stator core via an insulator. A guide member is provided on one side of the stator core in the axial direction and guides the terminal line of the coil in the circumferential direction at a position overlapping the coil in the axial direction. The coils have coils of different systems connected to circuits of different systems. The guide member has a collecting portion that collects the terminal lines of the different systems at one place in the circumferential direction.

In a stator, coils of multiple phases are wound around a stator core via an insulator. A guide member is provided on one side of the stator core in the axial direction and guides the terminal line of the coil in the circumferential direction at a position overlapping the coil in the axial direction. The coils have coils of different systems connected to circuits of different systems. The guide member has a collecting portion that collects the terminal lines of the different systems at one place in the circumferential direction.

An armature is presented. The armature includes an armature winding having a plurality of coils, wherein each coil of the plurality of coils is spaced apart from adjacent coils and comprise includes a first side portion and a second side portion. The armature further includes a first electrically insulating winding enclosure. Furthermore, the armature includes a second electrically insulating winding enclosure disposed at a radial distance from the first electrically insulating winding enclosure, wherein the armature winding is disposed between the first electrically insulating winding enclosure and the second electrically insulating winding enclosure. Moreover, the armature includes an electrically insulating coil side separator disposed between the first side portion and the second side portion of the plurality of coils of the armature winding. A superconducting generator including the armature and a wind turbine having such superconducting generator are also presented.

A stator includes a yoke extending in a circumferential direction about an axis line, a tooth extending from the yoke in a first direction toward the axis line, and a coil wound around and fixed to the tooth. The yoke has an inner wall surface facing the axis line. The tooth has a root part connected to the yoke. The inner wall surface of the yoke is a flat surface extending from an end of the root part of the tooth in the circumferential direction to an inner circumferential side relative to a plane passing through the end and perpendicular to the first direction.

An electric motor includes a stator including four split cores, and a rotor having four magnetic poles. Each of the split cores includes a yoke and a tooth. An angle θ1 [degree] formed by a side surface of the tooth and a side surface of the yoke on an inner side in a radial direction of the stator satisfies 90 degrees ≤θ1<180 degrees.