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, C1 . . . C9, C1 . . . C9), a coil (C1 . . . C9, C1 . . . C9, C1 . . . C9, C1 . . . C9) comprising a predetermined number of turns around at least two arms (B1 . . . B18) of the body, two adjacent coils (C1 . . . C9, C1 . . . C9, C1 . . . C9, C1 . . . C9) of a series being angularly offset from one another with a partial overlap,
in which the rotor (1) comprises at least one additional retaining loop (S1, S1, S2, S2) wound around at least two arms (B1 . . . B18) of which at least one is common to the arms (B1 . . . B18) around which is wound the last coil (C9, C9, C9, C9), situated radially outermost, of at least one series and of which at least one is distinct from the arms around which the said last coil (C9, C9, C9, C9) is wound, so that the at least one additional retaining loop (S1, S1, S2, S2) partially overlaps the turns of the said last coil (C9, C9, C9, C9).

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, C1 . . . C9, C1 . . . C9), a coil (C1 . . . C9, C1 . . . C9, C1 . . . C9, C1 . . . C9) comprising a predetermined number of turns around at least two arms (B1 . . . B18) of the body, two adjacent coils (C1 . . . C9, C1 . . . C9, C1 . . . C9, C1 . . . C9) of a series being angularly offset from one another with a partial overlap,
in which the rotor (1) comprises at least one additional retaining loop (S1, S1, S2, S2) wound around at least two arms (B1 . . . B18) of which at least one is common to the arms (B1 . . . B18) around which is wound the last coil (C9, C9, C9, C9), situated radially outermost, of at least one series and of which at least one is distinct from the arms around which the said last coil (C9, C9, C9, C9) is wound, so that the at least one additional retaining loop (S1, S1, S2, S2) partially overlaps the turns of the said last coil (C9, C9, C9, C9).

A stator which includes a stator core having an annular shape and a plurality of electric conductors that include a coil end which is mounted on a slot of the stator core and which protrudes in an axial direction of the stator core, the stator including: a joint part that is provided on the coil end and that is covered by an insulating part after the electric conductors are joined together; a non-joint part that is a different part of the coil end than the joint part; and a thermistor that detects a heating temperature of the coil end, wherein a recess part that is recessed in the axial direction is provided on an end surface in the axial direction of the stator core, and the thermistor is arranged in the recess part in a state of being in contact with the non-joint part of the coil end in a predetermined electric conductor among the electric conductors.

A stator which includes a stator core having an annular shape and a plurality of electric conductors that include a coil end which is mounted on a slot of the stator core and which protrudes in an axial direction of the stator core, the stator including: a joint part that is provided on the coil end and that is covered by an insulating part after the electric conductors are joined together; a non-joint part that is a different part of the coil end than the joint part; and a thermistor that detects a heating temperature of the coil end, wherein a recess part that is recessed in the axial direction is provided on an end surface in the axial direction of the stator core, and the thermistor is arranged in the recess part in a state of being in contact with the non-joint part of the coil end in a predetermined electric conductor among the electric conductors.

A method of manufacturing a rotor of an electric motor or an electric generator includes positioning a plurality of amortisseur bars and using additive manufacturing to place electrically conductive material. More specifically, positioning the amortisseur bars may include circumferentially positioning the bars around a rotor stack and using additive manufacturing to place electrically conductive material may include forming a non-solid pattern of electrically conductive material, such as a pattern of electrically conductive traces, across opposite axial ends of the rotor stack to electrically interconnect an amortisseur circuit.

A method of manufacturing a rotor of an electric motor or an electric generator includes positioning a plurality of amortisseur bars and using additive manufacturing to place electrically conductive material. More specifically, positioning the amortisseur bars may include circumferentially positioning the bars around a rotor stack and using additive manufacturing to place electrically conductive material may include forming a non-solid pattern of electrically conductive material, such as a pattern of electrically conductive traces, across opposite axial ends of the rotor stack to electrically interconnect an amortisseur circuit.

A stator of a rotary electric machine related to the invention includes: a stator core in which a plurality of slots are formed and an opening part of each of the plurality of slots is provided in an inner circumferential surface thereof; and a coil including a plurality of coil segments that are inserted from the opening part of each of the plurality of slots. At least a first coil segment and a second coil segment are arranged so as to be overlapped in a radial direction in each slot, and an engagement part which prevents a relative movement in an axial direction is provided on overlapping surfaces of the first coil segment and the second coil segment.

A stator of a rotary electric machine related to the invention includes: a stator core in which a plurality of slots are formed and an opening part of each of the plurality of slots is provided in an inner circumferential surface thereof; and a coil including a plurality of coil segments that are inserted from the opening part of each of the plurality of slots. At least a first coil segment and a second coil segment are arranged so as to be overlapped in a radial direction in each slot, and an engagement part which prevents a relative movement in an axial direction is provided on overlapping surfaces of the first coil segment and the second coil segment.

A blower motor is provided for use in a machine. The motor includes a stator and a rotor rotatable about an axis. The stator includes a generally toroidal core, a first-main winding, and an auxiliary winding that is electrically out of phase with the first-main winding. The first-main winding and the auxiliary winding are both full pitch windings.

A blower motor is provided for use in a machine. The motor includes a stator and a rotor rotatable about an axis. The stator includes a generally toroidal core, a first-main winding, and an auxiliary winding that is electrically out of phase with the first-main winding. The first-main winding and the auxiliary winding are both full pitch windings.