Abstract: A rotor for a rotary electric machine, capable of rotating around an axis of rotation, the rotor has first and second axial ends and includes a rotor body having a plurality of teeth circumferentially distributed around the axis and projecting radially, each tooth being in contact with two end plates. Also included is a rotor winding having a plurality of coils, each coil being wound on one of said teeth of the rotor body, each coil having two coil ends, two covers, a first cover located on the first axial end of the rotor and a second cover located on the second axial end of the rotor. The rotor has at least one non-conductive radial barrier that maintains a predetermined distance between the first coil end and the first cover on the one hand and between the second coil end and the second cover on the other hand.

Abstract: A rotor for an electric machine is disclosed. The rotor has a rotor shaft, a laminated core arranged on the rotor shaft and a plurality of stacked electrical laminations. The rotor also includes a first end plate arranged on an axial side of the laminated core and having radial protrusions arranged along its circumference, a second end plate arranged on the opposite axial side of the laminated core and having radial protrusions arranged along its circumference, a plurality of rotor windings which are each wound around a protrusion of the first end plate and around an axially opposite protrusion of the second end plate. A central cooling duct runs in the rotor shaft for supplying a coolant, and a radial cooling duct runs outwards from the central cooling duct in the laminated core. In addition, an electric machine and a vehicle having an electric machine of this type are described.

Abstract: A rotor for a rotary electric machine includes a rotor shaft configured to rotate around an axis of rotation, a rotor body formed of a stack of laminations having a plurality of teeth projecting radially and being configured to be mounted coaxially on the rotor shaft. A field coil is wound around each tooth of the plurality of teeth. At least one tooth of the plurality of teeth includes at least one weld seam on a lateral face of the corresponding tooth, the lateral face extending radially and axially along the axis of rotation.

Abstract: An electromagnetic pole (17) for a rotary electric machine is disclosed. The pole has a tooth (18) comprising a tooth body (19), the tooth (18) being radially oriented and the tooth (18) comprising a recess (21), a coil (16) comprising a plurality of wire turns (20) wound around the tooth (18) between a first radial end (28) and a second radial end (29), the wire turns (20) which are the most distant from the tooth body (19) between the first radial end (28) and the second radial end (29), forming an outer wire layer (22), the coil (16) comprising a bracing wire (14), the bracing wire (14) being wound on the outer wire layer (22) from the first radial end (28) to the second radial end (29) in less than one turn around the tooth (18) so as to hold in position the outer wire layer (22).

Abstract: A rotor for an electric machine includes a rotor shaft and a laminated core which is arranged on the rotor shaft and formed from stacked electrical laminations and which has radially outwardly projecting laminated core protrusions. Rotor windings are each wound around a laminated core protrusion. A pole separator is arranged between two adjacent laminated core protrusions and has a cooling duct, which runs in the pole separator, for a coolant.

Abstract: Rotor for electric machine includes a rotor shaft, and a laminated core arranged on the rotor shaft and formed from stacked electrical laminations with radially outwardly protruding laminated core projections. A first end plate arranged on a first axial side of the laminated core with radially outwardly protruding end plate projections. A second end plate arranged on an opposite second axial side of the laminated core with radially outwardly protruding end plate projections. A plurality of rotor windings are respectively wound around an end plate projection of the first end plate, and an axially opposite end plate projection of the second end plate and a laminated core projection extends axially between the two end plate projections. A pot-shaped first end cap axially covers the first end plate, a pot-shaped second end cap axially covers the second end plate. A tubular cooling channel runs axially between two adjacent rotor windings.

Abstract: A stator includes a stator core with two opposing end sides and a plurality of grooves arranged in the peripheral direction, and a stator winding having number N?3 of strands, wherein each strand is formed by a shaped conductor. Each groove is radially divided into first to L-th layers, which form first to L/2-th double layers. Within a number A of double layers of a respective winding zone, the receiving sites are nested with a neighbouring (in the peripheral direction) winding zone of another of the strands.

Abstract: A stator core for a stator of an electric machine includes a rotor receiving space which traverses the stator core along an axial direction; and several of slots which, in the circumferential direction, are formed successively in the stator core. The slots traverse the stator core axially from a first end side to an opposite second end side of the stator core. The slots have respectively a receiving portion in which a stator winding of the stator is able to be received, and a slot opening which is formed at a radial position between the receiving portion and the rotor receiving space and in terms of the receiving portion has relative angular positions which are mutually offset along the axial direction.

Abstract: A method for producing a skewed stator having a stator winding composed of shaped conductors includes providing a stator core including a plurality of slots extending from a first end-face to an opposing second end-face and have a skew in the circumferential direction. An arrangement is provided having at least one shaped conductor having two straight leg portions oriented parallel to one another and connected by a connecting portion. Also included is inserting the arrangement into the stator core with the skewed slots at the first end-face by relative movement in the axial direction between the stator core and the arrangement, so that the leg portions of the at least one shaped conductor are bent as a result of the relative movement in such a way that the shape of the leg portions inserted into the stator core acquires a skew which corresponds to the skew of the slots.

Abstract: A method for producing a skewed stator having a stator winding made from segmented conductors includes providing a stator core having a large number of axially layered stator core elements which form a plurality of slots extending from one end-face of the stator core to an opposite end-face, and which extend parallel in an axial direction. A large number of segmented conductors are provided which each have two leg portions extending parallel to each other and a connection portion electrically connecting the leg portions. The leg portions are introduced into the slots, and the stator core elements are rotated in a circumferential direction so they are displaced relative to each other in a circumferential direction and the slots form an inclination in a circumferential direction. The leg portions are bent by the rotation have an inclination corresponding to the slots. The stator core elements are fixed relative to each other.

Abstract: A rotor for a rotary electric machine includes a rotor shaft configured to rotate around an axis of rotation, a rotor body formed of a stack of laminations having a plurality of teeth projecting radially and being configured to be mounted coaxially on the rotor shaft. A field coil is wound around each tooth of the plurality of teeth. At least one tooth of the plurality of teeth includes at least one weld seam on a lateral face of the corresponding tooth, the lateral face extending radially and axially along the axis of rotation.

Abstract: A rotor for a rotary electric machine, capable of rotating around an axis of rotation, the rotor has first and second axial ends and includes a rotor body having a plurality of teeth circumferentially distributed around the axis and projecting radially, each tooth being in contact with two end plates. Also included is a rotor winding having a plurality of coils, each coil being wound on one of said teeth of the rotor body, each coil having two coil ends, two covers, a first cover located on the first axial end of the rotor and a second cover located on the second axial end of the rotor. The rotor has at least one non-conductive radial barrier that maintains a predetermined distance between the first coil end and the first cover on the one hand and between the second coil end and the second cover on the other hand.

Abstract: An electromagnetic pole (17) for a rotary electric machine is disclosed. The pole has a tooth (18) comprising a tooth body (19), the tooth (18) being radially oriented and the tooth (18) comprising a recess (21), a coil (16) comprising a plurality of wire turns (20) wound around the tooth (18) between a first radial end (28) and a second radial end (29), the wire turns (20) which are the most distant from the tooth body (19) between the first radial end (28) and the second radial end (29), forming an outer wire layer (22), the coil (16) comprising a bracing wire (14), the bracing wire (14) being wound on the outer wire layer (22) from the first radial end (28) to the second radial end (29) in less than one turn around the tooth (18) so as to hold in position the outer wire layer (22).

Abstract: A rotor including a rotor shaft, a rotor body formed of a stack of laminations, a field coil wound around the rotor body, and at least one slip ring mounted on the rotor shaft and configured to exchange electric power with an external power supply. Each of the at least one slip ring is configured to be electrically connected to an end of the field coil through an electrical connector. The electrical connector is pre-bended such that to comprise an axial portion and a radial portion respectively located on both sides of a bend, the axial portion being configured to pass through an axial bore of the rotor shaft, the radial portion being configured to pass through a through bore of the rotor shaft.

Abstract: A rotor for a rotary electric machine, the rotor having an axis of rotation and including a rotor shaft extending parallel to the axis of rotation, a rotor body mounted on the rotor shaft and having a plurality of teeth protruding radially, and at least one field coil wound around the plurality of teeth, the field coil forming coil ends at axial ends of the teeth. At least one cover mounted on the rotor shaft and configured to cover the coil ends. The cover includes a plurality of holes configured to each receive a solid balancing element which provides an additional mass to the rotor in order to balance said rotor.

Abstract: A rotor for an electric machine is disclosed. The rotor has a rotor shaft, a laminated core arranged on the rotor shaft and a plurality of stacked electrical laminations. The rotor also includes a first end plate arranged on an axial side of the laminated core and having radial protrusions arranged along its circumference, a second end plate arranged on the opposite axial side of the laminated core and having radial protrusions arranged along its circumference, a plurality of rotor windings which are each wound around a protrusion of the first end plate and around an axially opposite protrusion of the second end plate. A central cooling duct runs in the rotor shaft for supplying a coolant, and a radial cooling duct runs outwards from the central cooling duct in the laminated core. In addition, an electric machine and a vehicle having an electric machine of this type are described.