A rotating electrical machine includes a rotor iron, a stator iron and conductor bars. An air gap separates the rotor iron from the stator iron. The stator iron has a slot and the conductor bars run in the slot. The conductor bars have a first profile in a first segment, the conductor bars have a second profile in a second segment and the first profile differs from the second profile. Also described is a method which is adapted for producing an electrical machine.

A carrier for an electric machine has a first layer and plural first posts extending from the first layer. The first layer defines gaps through the first layer adjacent to the plural first posts. One or more inserts have insert posts configured to be inserted through the gaps to combine with the plural first posts to widen the plural first posts. A carrier may also have a first layer, plural first posts extending from the first layer, the first layer defining gaps through the first layer intermediate between successive posts of the plural posts. One or more inserts have insert posts configured to be inserted through the gaps to form an array of posts in combination with the plural first posts.

The invention relates to a coil former (1) for winding conductor wire (100) into coil windings (101), in particular for subsequent insertion in a stator carrier, said coil former having a coil former front (2) and a coil former rear (3), wherein the coil former front (2) and the coil former rear (3) span, by means of a peripheral surface (4), a spiral winding path (P) around a spiral axis (W) for the conductor wire (100), and wherein support elements (10, 11) are arranged along the winding path (P) and protrude beyond the peripheral surface (4) and laterally delimit the spiral winding path (P). The invention also relates to a winding device (50) having a coil former (1) of this kind and to a method for operating the winding device (50).

An assembly for an electric motor includes a stator including a plurality of stator poles, each stator pole including a base end and a rotor end opposite the base end, and an electromagnetic coil around each stator pole. The coil around each stator pole includes at least two electrically conductive wires wound into multiple wire turns around the stator pole that extend from the base end of the stator pole to the rotor end of the stator pole. Wire turns of the coil closer to the rotor end of the stator pole are twisted and wire turns of the coil closer to the base end of the stator pole are not twisted.

Provided is a device for manufacturing a stator, the device including a winding jig configured to wind a coil and to manufacture a winding coil, and an insertion jig configured to receive the winding coil from the winding jig and to insert the winding coil into a stator core, wherein the winding jig comprises a body extending along a longitudinal direction (L1), a power supply unit configured to make the body revolve around a central shaft of the body, and a protrusion formed on a surface of the body.

The disclosure relates to an electric machine having a rotor including a set of permanent magnets and a stator including a stator strip made of a soft ferromagnetic material, the strip supporting a coil body having a single discontinuity, the coil body supporting a plurality of wire coils so as to form a polyphase coil stator assembly of the toroidal type, wherein the strip has a single discontinuity and has at least one partial cut at regular intervals between two consecutive wire coils.

The wound coil (7) includes first to fourth inner bases (11a) to (11d), first to fourth outer bases (12a) to (12d). The wound coil (7) includes first to fourth upper connection portions (16a) to (16d), first to third lower connection portions (17a) to (17c), and first to fourth winding portions (18a) to (18d). In the first to fourth winding portions (18a) to (18d), the third and fourth upper connection portions (16c) and (16d) are stacked on the first and second upper connection portions (16a) and (16b) in the circumferential direction D1 and the first and third lower connection portions (17a) and (17c) are continuously stacked on the second lower connection portion (17b) in the circumferential direction D1.

The coil winding has an electrical conductor for an electrical machine and includes at least two layers. The electrical conductor, following its longitudinal extension, runs inwardly wound in a first of the at least two layers, and then extends to a second of the at least two layers and runs outwardly wound in the second layer. The electrical machine includes at least one such coil winding. The hybrid electric aircraft is in particular an airplane and includes such an electrical machine and/or at least one such coil winding.

A wave winding coil (9) has a first linear part (11a), second linear part (11b), arm part (12) and turn part (13). A retaining apparatus (1) retains the first linear part (11a) along the axis line direction between middle pins (3b, 3b) of a middle body part (3), and retains the second linear part (11b) between upper pins (2b, 2b), middle pins (3b, 3b), and lower pins (4b, 4b), in a state where sections of both ends of the second linear part (11b) in the axis line direction deviate to each other in circumferential opposite sides of the wave winding coil (9) to the axis line direction of the wave winding coil (9) and in a state where a bent angle b between the second linear part (11b) and the connecting part is smaller than a bent angle a between the first linear part (11a) and the connecting part.

A manufacturing method of a magnetic assembly winding includes the following steps: providing a winding frame; and then winding a plurality of turns of basic coils on the winding frame with a wire, wherein lengths of two ends of the wire to a segment of the wire wound into the basic coils is longer than a length of the wire wound with a plurality of turns of coils; and then, continuing winding of the plurality of turns of coils by two wire segments of the wire connected with two ends of each basic coil to complete a magnetic assembly winding, respectively. The magnetic assembly winding comprises two tail segments; and the two tail segments are formed by extending outermost ones of the plurality of coils.