A wound rotor (1) has a structure defining a circumferential alternation of teeth and grooves. The teeth respectively receives longitudinal windings. The rotor (1) has longitudinal ends (17, 17′) and the windings defining, at the longitudinal ends of the rotor (1), protruding coil heads (40). A collar (10, 10′) for mechanically holding the windings is installed at one of the longitudinal ends (17, 17′) of the rotor (1) so as to define a central opening (101, 101′). A nozzle (21, 21′) projects a liquid coolant through the central opening (101, 101′) onto the coil head (40). The collar (10, 10′) has an escape duct (11, 11′) allowing escape of the liquid coolant projected onto the coil heads (40) to an outside of the collar (10, 10′). A longitudinal end of the collar (10, 10′) has a constant reduction in an outer diameter.

A wound rotor (1) has a structure defining a circumferential alternation of teeth and grooves. The teeth respectively receives longitudinal windings. The rotor (1) has longitudinal ends (17, 17′) and the windings defining, at the longitudinal ends of the rotor (1), protruding coil heads (40). A collar (10, 10′) for mechanically holding the windings is installed at one of the longitudinal ends (17, 17′) of the rotor (1) so as to define a central opening (101, 101′). A nozzle (21, 21′) projects a liquid coolant through the central opening (101, 101′) onto the coil head (40). The collar (10, 10′) has an escape duct (11, 11′) allowing escape of the liquid coolant projected onto the coil heads (40) to an outside of the collar (10, 10′). A longitudinal end of the collar (10, 10′) has a constant reduction in an outer diameter.

A method and apparatus for a rotor assembly. The rotor assembly includes a rotor core having a rotatable shaft and defining at least one rotor post, a winding wound around the post that defines an end turn, and at least one coolant conduit defined in part by an end support and in a thermally conductive relationship with a portion of the winding.

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′).

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′).

The shaft for a rotating electrical machine comprises at least one housing element (8a, 8b, 8c) extending in an axial direction (A) and emerging outwards in a radial direction, with one side of the housing element emerging outwards in an axial direction, and with the housing being able to accommodate at least one insulated electrical conductor (6) and a spacer (9a, 9b, 9c).

The shaft for a rotating electrical machine comprises at least one housing element (8a, 8b, 8c) extending in an axial direction (A) and emerging outwards in a radial direction, with one side of the housing element emerging outwards in an axial direction, and with the housing being able to accommodate at least one insulated electrical conductor (6) and a spacer (9a, 9b, 9c).

A generator including a stator winding, a rotor positioned radially inside the stator winding, including multiple coil assemblies each using a flat wire, a primary termination plate residing radially inside the rotor configured to connect a wire of a coil assembly to an adjacent wound coil and a secondary termination plate residing radially inside the rotor configured to connect a wound coil to an adjacent wound coil and connect the wound coil to a terminus connection.

A generator including a stator winding, a rotor positioned radially inside the stator winding, including multiple coil assemblies each using a flat wire, a primary termination plate residing radially inside the rotor configured to connect a wire of a coil assembly to an adjacent wound coil and a secondary termination plate residing radially inside the rotor configured to connect a wound coil to an adjacent wound coil and connect the wound coil to a terminus connection.

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.