Abstract: A method and an apparatus are provided for manufacturing a stator with a plurality of hairpin conductors. For inserting the hairpin conductors (15, 15) into the slots (11) of a stator core (12) a stator core template (22) is provided. Hairpin conductors (15) are axially inserted into slots (21) of the stator core template (22) such that the hairpin conductor (15) is arranged at a first position (P1) within said slot (21). The hairpin conductor (15) is then moved within said slot (21) to a different position (P2). A complete nest (20) of hairpin conductors (15) formed within the stator core template (22) is then transferred to the stator core (12).

Abstract: The present invention relates to a method for laser welding conductor wires (5, 7), in particular conductor wires (5, 7) arranged in slots (2) of a core (3) of a dynamo electric machine, such as a stator core, to form a winding and a device (35) for laser GC welding conductor wires (5, 7). A first end (4) of a first conductor wire (5) and a second end (6) of a second conductor wire (7) are arranged adjacent to each other. A laser beam is applied to a first end surface (8) of the first conductor wire (5) and a second end surface (10) of the second conductor wire (7) to weld together the first end (4) of the first conductor wire (5) and the second end (6) of the en second conductor wire (7). The first end surface (8) and the second end surface (10) point upwards, preferable the first end surface (8) and the second end surface (10) are axial end surfaces. A laser beam (31) is applied in a first substantially closed path (21) within the first end surface (8) to form a first molten pool (25).

Abstract: The invention relates to a stator which may be used within an electric rotating machine and a method for manufacturing a stator. The stator (200) comprises a stator core (100) having a plurality of slots (101, 101a, 101b) arranged in circumferential direction (C) of the stator core (100), a plurality of conductors (102, 103) forming a stator winding, wherein at least a radially outer conductor (102) and a radially inner conductor (103) are arranged along a radial direction (R) of each slot (101). At least one pair of a radially outer conductor (102) of a first slot (101a) and a radially inner conductor (103) of a second slot (101b) circumferentially spaced from the first slot (101a) is electrically connected by a connection bridge (1).

Abstract: The invention relates to a stator (100) which may be used within an electric rotating machine, an electric machine, an apparatus for preparing a stator and a method for preparing a stator. The stator (100) comprises a stator core (10) having a plurality of slots (11) arranged in a circumferential direction (C) of the stator core (10). At least a first conductor (12) and at least a second conductor (13) are arranged along a radial direction (R) of one slot (11). Axial end sections (22, 23) of the conductors (12, 13) are electrically connectable or connected and the axial end sections (22, 23) of radially adjacent conductors (12, 13) are distanced from each other. The distance (28) between the proximal end (29) of the axial end section (22) of a first conductor (12) and the stator core (10) is longer than the distance (26) between the distal end (27) of the axial end section (23) of a second conductor (13) and the stator core (10).

Abstract: A method and an apparatus are provided for manufacturing a stator with a plurality of hairpin conductors. For inserting the hairpin conductors (15, 15) into the slots (11) of a stator core (12) a stator core template (22) is provided. Hairpin conductors (15) are axially inserted into slots (21) of the stator core template (22) such that the hairpin conductor (15) is arranged at a first position (P1) within said slot (21). The hairpin conductor (15) is then moved within said slot (21) to a different position (P2). A complete nest (20) of hairpin conductors (15) formed within the stator core template (22) is then transferred to the stator core (12).

Abstract: A method and an apparatus are provided for manufacturing a stator with a plurality of hairpin conductors. For inserting the hairpin conductors (15, 15) into the slots (11) of a stator core (12) a stator core template (22) is provided. Hairpin conductors (15) are axially inserted into slots (21) of the stator core template (22) such that the hairpin conductor (15) is arranged at a first position (P1) within said slot (21). The hairpin conductor (15) is then moved within said slot (21) to a different position (P2). A complete nest (20) of hairpin conductors (15) formed within the stator core template (22) is then transferred to the stator core (12).

Abstract: A method and an apparatus are provided for manufacturing a stator with a plurality of hairpin conductors. For inserting the hairpin conductors (15, 15) into the slots (11) of a stator core (12) a stator core template (22) is provided. Hairpin conductors (15) are axially inserted into slots (21) of the stator core template (22) such that the hairpin conductor (15) is arranged at a first position (P1) within said slot (21). The hairpin conductor (15) is then moved within said slot (21) to a different position (P2). A complete nest (20) of hairpin conductors (15) formed within the stator core template (22) is then transferred to the stator core (12).