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 shaped conductor for a winding of an active part of a rotating electric machine, the shaped conductor being formed by a wire and having a first wire portion, which extends along the wire starting from a free end of the shaped conductor and, at the free end, has an end face, and a second wire portion, which adjoins the first wire portion, extends along the wire and has a cross-sectional area.

Abstract: Stator for an electric machine, having a stator core with two axial end sides, a stator winding which extends through the stator core in the axial direction and is formed from a plurality of conductor segments, and covers of a first and a second type. The conductor segments have, at one of the end sides, end sections which are electrically conductively and mechanically connected to one another in pairs to form end section arrangements. The covers of the first type each cover at least two end section arrangements at their free end, and the covers of the second type each cover at least one end section arrangement at their free end.

Abstract: A rotor (1) comprising a rotor shaft (13), a rotor core (14) having a core length, windings (12), and two impregnation rings (11), the windings (12) forming protruding windings ends (121), each one of the two impregnation rings (11) comprising an annular portion (111) and a deflector portion (112), the annular portion (111) comprising radial openings (113); and a method for impregnating the rotor (1) comprising starting a rotation of the rotor shaft (13) and impregnating the windings (12) with an impregnating agent through two nozzles respectively located upward each one of the two impregnation rings (11) and oriented towards the radial openings (113), the impregnation agent being guided by the deflector portion (112) towards the protruding windings ends (121) on both sides of the rotor (1) at a same time, in order to impregnate the windings (12) through the core length.

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: 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 method for producing an active part (1) for a rotary electric machine (101), comprising the following steps: providing a core (2) for the active part (1) and shaped conductors (6) inserted into the core; joining together, in each case, two of the end areas (9) so that the two end areas (9) form a pair (10); and welding each pair (10) of the end areas (9) by means of a laser beam which is guided on the end areas (9) of the pair (10) along a first trajectory (13).

Abstract: Method for producing an active part (1) for a rotating electric machine (101), comprising the following steps: providing a core (2) for the active part (1) and shaped conductors (6) which are inserted into the core (2), joining in each case two of the end faces (9) to one another; and welding a respective pair (10) of the end faces (9) by means of a laser beam which is guided along a pattern having a trajectory (15).

Abstract: A rotor (1) comprising a rotor shaft (13), a rotor core (14) having a core length, windings (12), and two impregnation rings (11), the windings (12) forming protruding windings ends (121), each one of the two impregnation rings (11) comprising an annular portion (111) and a deflector portion (112), the annular portion (111) comprising radial openings (113); and a method for impregnating the rotor (1) comprising starting a rotation of the rotor shaft (13) and impregnating the windings (12) with an impregnating agent through two nozzles respectively located upward each one of the two impregnation rings (11) and oriented towards the radial openings (113), the impregnation agent being guided by the deflector portion (112) towards the protruding windings ends (121) on both sides of the rotor (1) at a same time, in order to impregnate the windings (12) through the core length.

Abstract: A rotor (3a . . . 3c) for an electrical machine (1) is described which comprises several rotor segments (10a . . . 10c, 10a?, 10a?, 10 . . . 10??) which are arranged successively along the rotational axis (x) of the rotor (3a . . . 3c) and each comprise a rotor plate (11) or several rotor plates (11). Magnetic poles (A . . . D) of two adjacent rotor segments (10a . . . 10c, 10a?, 10a?, 10 . . . 10??) are twisted relative to one another around the rotational axis (x) of the rotor (3a . . . 3c) by a staggering angle (?), wherein the staggering angle (?) is smaller than a polar angle (?) lying between two magnetic poles (A . . . D) of a rotor segment (10a . . . 10c, 10a?, 10a?, 10 . . . 10??). The rotor (3a . . . 3c) comprises at least two first cutouts (12) which are arranged on a first hole circle (L1) around the rotational axis (x) of the rotor (3a . . . 3c) and are each twisted relative to one another by an angle (?) which corresponds to the polar angle (?) minus or plus the staggering angle (?).