An embodiment relates to a stator and a motor comprising same, the stator comprising: a stator core comprising a yoke and multiple teeth protruding from the inner surface of the yoke; an insulator surrounding a part of the stator core; a coil wound around the insulator; and a molding portion disposed to cover the stator core, the insulator, and the coil. The insulator comprises a first insulator and a second insulator. The first insulator comprises: a body portion around which the coil is wound; and inner guide extending from the inside of the body portion in the perpendicular direction; a first outer guide extending from the outside of the body portion in the perpendicular direction; a second outer guide disposed to be spaced apart from the first outer guide in the outward direction; and a protrusion protruding from the second outer guide in the inward direction. The protrusion has an end portion disposed such that a predetermined gap (G) is formed between same and the first outer guide. The coil has a part disposed between the first outer guide and the second outer guide through the gap (G). Accordingly, it is possible to inhibit the coil from contacting the housing due to injection molding pressure during over-molding of the stator.

An armature manufacturing method includes preparing a core member that includes a rotation shaft at a central portion and that is formed with plural teeth in a radiating shape centered on the rotation shaft; and winding winding wires onto slots between the plural teeth so as to form plural types of winding coil sections, each with a different winding wire diameter.

An armature manufacturing method includes preparing a core member that includes a rotation shaft at a central portion and that is formed with plural teeth in a radiating shape centered on the rotation shaft; and winding winding wires onto slots between the plural teeth so as to form plural types of winding coil sections, each with a different winding wire diameter.

The process utilizes a shaft (2) supporting the stator (1) and/or the rotor, respectively, and capable of rotating around its axis, a first (3) and a second (3) working station allocated on an opposite position on the sides of the stator and/or the rotor, respectively, next to the outlet area of the lateral mouth of a cavity. Said stations have carrying devices (4, 4) for the leading wire (f), clamps (5, 5) capable of grasping and moving the tip of the wire (f), and sensors (6, 6) for detecting the arrival of the extremity of the wire (f). The tip of the wire is at first introduced, by the clamp (5) of one station, inside the nearby carrier (4) and passes into the nearby cavity, and then exits until it is detected by the sensor (6) of the other station, whereupon the tip of the wire is grasped by the other clamp (5) and reintroduced into the second carrier (4), as soon as the wire has exhausted its run inside the first cavity and the supporting shaft has, after rotating, positioned the subsequent cavity opposite the second carrier.

The process utilizes a shaft (2) supporting the stator (1) and/or the rotor, respectively, and capable of rotating around its axis, a first (3) and a second (3) working station allocated on an opposite position on the sides of the stator and/or the rotor, respectively, next to the outlet area of the lateral mouth of a cavity. Said stations have carrying devices (4, 4) for the leading wire (f), clamps (5, 5) capable of grasping and moving the tip of the wire (f), and sensors (6, 6) for detecting the arrival of the extremity of the wire (f). The tip of the wire is at first introduced, by the clamp (5) of one station, inside the nearby carrier (4) and passes into the nearby cavity, and then exits until it is detected by the sensor (6) of the other station, whereupon the tip of the wire is grasped by the other clamp (5) and reintroduced into the second carrier (4), as soon as the wire has exhausted its run inside the first cavity and the supporting shaft has, after rotating, positioned the subsequent cavity opposite the second carrier.

A method is provided for producing a rotor for an electric machine, wherein the rotor comprises a shaft and a sheet metal pack arranged on the shaft, the sheet metal pack including a plurality of individual metal sheets axially stacked in succession, wherein multiple poles are provided on the sheet metal pack, around which wires are wound to form individual windings, wherein a sheet metal pack is used having multiple axially running breaches through it, wherein a tie rod is led through each breach of the sheet metal pack prior to the winding around the poles and locked at one end for the axial tensioning of the sheet metal pack, after which the wires are wound around the poles. A rotor produced according to the described method and an electric machine comprising a rotor are also provided.

A method is provided for producing a rotor for an electric machine, wherein the rotor comprises a shaft and a sheet metal pack arranged on the shaft, the sheet metal pack including a plurality of individual metal sheets axially stacked in succession, wherein multiple poles are provided on the sheet metal pack, around which wires are wound to form individual windings, wherein a sheet metal pack is used having multiple axially running breaches through it, wherein a tie rod is led through each breach of the sheet metal pack prior to the winding around the poles and locked at one end for the axial tensioning of the sheet metal pack, after which the wires are wound around the poles. A rotor produced according to the described method and an electric machine comprising a rotor are also provided.

A rotor assembly includes a rotor core having winding slots, and one or more coils, which have slot-inserted segments included in the winding slots, and first and second end-turn segments external to the winding slots and located around opposite axial ends of the rotor core, respectively. The rotor assembly further includes a first containment band located around at least a portion of the first end-turn segments and configured to prevent the first end-turn segments from moving away from the rotor core radially, a second containment band located around at least a portion of the second end-turn segments and configured to prevent the second end-turn segments from moving away from the rotor core radially, and one or more sticks mounted in one or more of the winding slots, respectively. The first and second containment bands are retained via the sticks against moving away axially.

A rotor assembly includes a rotor core having winding slots, and one or more coils, which have slot-inserted segments included in the winding slots, and first and second end-turn segments external to the winding slots and located around opposite axial ends of the rotor core, respectively. The rotor assembly further includes a first containment band located around at least a portion of the first end-turn segments and configured to prevent the first end-turn segments from moving away from the rotor core radially, a second containment band located around at least a portion of the second end-turn segments and configured to prevent the second end-turn segments from moving away from the rotor core radially, and one or more sticks mounted in one or more of the winding slots, respectively. The first and second containment bands are retained via the sticks against moving away axially.

The present invention relates to a rotor (1) of a rotary electric machine, comprising: a body (3) comprising a cylindrical central core (5) and a circumferential plurality of arms (B1 . . . B18) extending radially out from the cylindrical central core (5), the body (3) being intended to be mounted with the ability to move about an axis of rotation X, a coilset produced by windings of turns and forming at least one series of coils (C1 . . . C9, C1 . . . C9), a coil (C1 . . . C9, C1 . . . C9) comprising a predetermined number of turns around at least two arms (B1 . . . B18) of the body (3), two adjacent coils (C1 . . . C9, C1 . . . C9) of a series being angularly offset from one another with a partial overlap,

in which the last coil (C9, C9), situated radially furthest towards the outside, comprises a predetermined number of turns that is lower than the predetermined number of turns of the other coils of the series (C1 . . . C8, C1 . . . C8).