Abstract: The invention relates to a stator (1) which may be used within an electric rotating machine. an apparatus for preparing pre-shaped insulators and a method for preparing a pre-shaped insulator. The stator (1) comprises a stator core (10) which has a plurality of axially extending slots (11) arranged in a circumferential direction (C) of the stator core (10) and at least two conductors (20, 21) arranged along a radial direction (R) of the same slot (11). Each conductor (20, 21) is peripherally wrapped by an individual insulator (30) which extends around the outer circumference (22) of the conductor (20, 21), such that in circumferential direction the insulator (30) comprises a one-layer-section (37) and an overlapping section (31) which extend along the complete axial length (29) of the insulator (30).

Abstract: The invention relates to a stator (1) which may be used within an electric rotating machine, an apparatus for preparing pre-shaped insulators and a method for preparing a pre-shaped insulator. The stator (1) comprises a stator core (10) which has a plurality of axially extending slots (11) arranged in a circumferential direction (C) of the stator core (10) and at least two conductors (20, 21) arranged along a radial direction (R) of the same slot (11). Each conductor (20, 21) is peripherally wrapped by an individual insulator (30) which extends around the outer circumference (22) of the conductor (20, 21), such that in circumferential direction the insulator (30) comprises a one-layer-section (37) and an overlapping section (31) which extend along the complete axial length (29) of the insulator (30).

Abstract: A device for positioning the ends of at least first pair of legs of hairpin conductors extending from a stator core with respect to a welder tool includes a first clamping element and a second clamping element that are independently moveable radially. The first clamping element has a first clamping surface and said second clamping element has a second clamping surface, wherein the clamping surfaces radially face each other. The clamping elements form a first radially inner receiving section between the first clamping surface and the second clamping surface, having a first radial width dimensioned to axially receive and clamp a first pair of legs during welding, and a second radially outer receiving section inside the first and second clamping elements, having a second radial width dimensioned to receive at least a further pair of legs during welding of the first pair of legs.

Abstract: A device for widening ends of legs of hairpin conductors, arranged in slots of a stator core, includes at least one finger, for radially moving the ends of legs of hairpin conductors. The at least one finger includes at least one radially extending arm and a separation member arranged adjacent to an end of the arm. The separation member is designed to be positioned between two ends of radially neighboring legs of pairs of hairpin conductors. The finger has a first section adjacent to the separation member. The first section is adapted for moving the pair of ends of legs when the finger is radially moved. The finger has a second section, which does not overlap with the first section. The second section is dimensioned to receive at least one pair of legs without moving, when the finger is radially moved.

Abstract: The invention is directed to an apparatus (100) and a method for manufacturing a partial nest or a nest (5) of pin conductors (1, 1i, 1o) for forming a stator. The apparatus (100) comprises a stator core template (10) with a block body (11) and radially extending ribs (12) forming slots (13) there between for insertion of legs (2, 2i, 2o) of the pin conductors (1, 1i, 1o). The apparatus (100) comprises at least one ring element (25, 33, 42) being arranged to provide an outer radial abutment face for inserted pin conductors (1, 1i, 1o).

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: Embodiments of the present disclosure may include producing a stator of a dynamo-electric machine. The method may include moving along a predetermined rectilinear trajectory a train of pole members arranged according to a predetermined starting spatial orientation. At a predetermined passage position, a first pole member and one or more intermediate pole members may pass from the rectilinear trajectory to a circular trajectory having a centre. In some embodiments, the method may include positioning a last pole member of the train along the circular trajectory adjacent to the first pole member and to the last intermediate pole member changing, at a change position its spatial orientation from the predetermined starting spatial orientation to a final spatial orientation in which it is radially oriented with respect to the centre of the circular trajectory.

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: An apparatus and method are for manufacturing coil members for insertion into slots of the core of a dynamo-electric machine. The coil members are formed by bending portions of an electric conductor. A feeder feeds portions of the conductor having a predetermined length through an aperture. The portions are fed along a feeding axis in a feeding direction and adjacent to an engagement member for engaging the conductor. The aperture is positioned before the engagement member in the feeding direction. Conveyors configured for moving the engagement member with respect to the aperture to engage a portion of the conductor with the engagement member in a transverse direction to the feeding axis, to bend the conductor. A pressing member selectively moves and engages the conductor to cause the conductor to engage a reaction surface proximate an aperture. The pressing member is before the engagement member in the conductor feeding direction.

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: The invention relates to a stator (1) which may be used within an electric rotating machine, an apparatus for preparing pre-shaped insulators and a method for preparing a pre-shaped insulator. The stator (1) comprises a stator core (10) which has a plurality of axially extending slots (11) arranged in a circumferential direction (C) of the stator core (10) and at least two conductors (20, 21) arranged along a radial direction (R) of the same slot (11). Each conductor (20, 21) is peripherally wrapped by an individual insulator (30) which extends around the outer circumference (22) of the conductor (20, 21), such that in circumferential direction the insulator (30) comprises a one-layer-section (37) and an overlapping section (31) which extend along the complete axial length (29) of the insulator (30).

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: Apparatus (1) and method for winding coils (B) of a wire conductor (W) around respective radial poles (10c) of a core (10) of a dynamo electric machine component. The apparatus (1) comprises a wire dispenser arm (11) which rotates about a radial pole (10c) at a time to dispense the wire conductor (W) forming the turns (S). A first wire guide (32) is, furthermore, provided positioned at a first axial end (A) from the radial pole (10c) being wound and moved along a moving direction (132a, 132b) parallel to the radial direction (110c) of the radial pole (10c) to form a respective coil (B). A second and a third wire guide (36, 37) are, furthermore, provided positioned respectively, in a first and in a second slot (10a, 10b) adjacent to the radial pole (10c) being wound at opposite sides. The second and the third wire guides (36, 37) are positioned with respect to the first wire guide (32) in such a way to form at least a respective passageway (38a, 38b, 38?a, 38?b) for the wire conductor W.

Abstract: Methods and apparatuses for forming a woven coil assembly (100), the coil assembly having adjacent superimposed linear portions (LI-L6, AL7-ALI2) extending parallel to each other in a first area (A1) of the coil assembly, and adjacent superimposed linear portions (L7-L12, AL13-AL18) extending parallel to each other in a second area (A2) of the coil assembly, wherein a plurality of head portions (T) connect the linear portions of the first area (AI) to the linear portions of the second area (A2).

Abstract: A method and apparatus for inserting an undulated coil assembly (90) in the hollow core (101) of a dynamoelectric machine, the coil having a planar configuration with adjacent superimposed linear portions (LI) extending parallel to each other and a plurality of turn portions (T) connecting the linear portions (LI), comprising positioning at least a first coil portion (90?) of the coil assembly around a support member (200); aligning a guide assembly (302,303,304) with respect to the end faces and the slots (102) of the core (101); engaging the superimposed linear portions (LI) along guide surfaces that form a passage (301) during the feeding along the guide assembly (302,303,304); feeding the first coil portion (90) from the support member (200) along the guide assembly (302,303,304) to change orientation of adjacent superimposed linear portions (LI) being fed and to insert the adjacent superimposed linear portions being fed in the slots (102); relatively moving the core (101) with respect to the guide assemb

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 invention is directed to an apparatus (100) and a method for manufacturing a partial nest or a nest (5) of pin conductors (1, 1i, 1o) for forming a stator. The apparatus (100) comprises a stator core template (10) with a block body (11) and radially extending ribs (12) forming slots (13) there between for insertion of legs (2, 2i, 2o) of the pin conductors (1, 1i, 1o). The apparatus (100) comprises at least one ring element (25, 33, 42) being arranged to provide an outer radial abutment face for inserted pin conductors (1, 1i, 1o).

Abstract: Embodiments of the currently claimed disclosure are directed to methods for inserting an undulated coil assembly in the slots of a hollow core of a dynamoelectric machine. In some embodiments, the method can include positioning at least a first coil portion of the coil assembly around a support member, aligning a guide device with respect to end faces and the slots of the core, feeding the first coil portion from the drum support member along the guide device to insert adjacent superimposed linear portions (LI) of the coil assembly in the slots, engaging the superimposed linear portions (LI) along at least one guide surface during the feeding, and relatively moving the core with respect to the guide assembly device to position the slots for receiving the superimposed linear portions (LI).

Abstract: An apparatus for forming pre-shaped insulating sheets comprises a first bending station and a second bending station. The first bending station is used for bending a flat sheet of insulating material into a Z-shaped sheet (5). The second bending station is used for bending the Z-shaped sheet into an S-shape. The first and second bending stations comprise pairs of first (13a, 13b) and second bending operators for creating bending movements.