In a motor, a stator includes: a stator core having slots arranged in a circumferential direction; and conductor connection bodies with conductors connected in series and inserted into the slots. A conductor connection body includes: a first portion wave-wound toward one side in the circumferential direction from a first end to a second end; a second portion wave-wound toward the one side in the circumferential direction from a third end to a fourth end; and a folded portion connecting the first and second portions. The first and third ends protrude in an axial direction from different slots in the circumferential direction, and the second and fourth ends protrude in the axial direction from different slots in the circumferential direction. The conductors include a folded conductor that forms a folded portion connecting the second end of the first portion and the fourth end of the second portion.

A radial flux rotary electric machine having an exterior-rotor configuration is shown. The machine has a permanent-magnet rotor comprising permanent magnets in a Halbach array, and an air-cored stator interior to the rotor having teeth defining tapered slots and distributed windings around the teeth to form coils in a double-layer arrangement, the windings being comprised of a plurality of phase windings. For each tooth T having a slot S1 on one side thereof and a slot S2 on another side thereof, a coil side C1 of a phase winding is arranged to occupy a radially inner layer of the slot S1 and a coil side C2 of the same phase winding is arranged to occupy a radially outer layer of the slot S2, wherein the coil side C1 has a smaller circumferential dimension and a larger radial dimension than the coil side C2.

A stator of an electric machine includes a laminated core having slots for receiving windings of a multiphase winding system. The windings have winding ends, which are encased with an insulator across a partial length. In order to encase the winding ends with the insulator, a strand of a thermoplastic material is extruded onto the winding ends via a nozzle. During extrusion, the nozzle is moved relative to the winding end along the longitudinal extent thereof and an oscillating movement of the nozzle transversely to the longitudinal extent of the winding end overlays the movement along the longitudinal extent. As a result the thermoplastic material lies on the winding end and around the respective winding end in the form of loops.

A stator of an electric machine includes a laminated core having slots for receiving windings of a multiphase winding system. The windings have winding ends, which are encased with an insulator across a partial length. In order to encase the winding ends with the insulator, a strand of a thermoplastic material is extruded onto the winding ends via a nozzle. During extrusion, the nozzle is moved relative to the winding end along the longitudinal extent thereof and an oscillating movement of the nozzle transversely to the longitudinal extent of the winding end overlays the movement along the longitudinal extent. As a result the thermoplastic material lies on the winding end and around the respective winding end in the form of loops.

A stator for an electric machine has a plurality of pins, which are arranged on concentric circles at different distances from a stator center point in slots and each concentric circle forms a layer, wherein four pins in different layers are respectively connected to one another in series and form a winding, a first pin of the winding is located in a first slot in the 4n−1 layer, wherein n is a natural number, a second pin of the winding is located in a second slot in the 4n layer, wherein the second slot is at a first radial distance from the first slot in a first circumferential direction of the stator, a third pin of the winding is located in the first slot in the 4n−3 layer, a fourth pin of the winding is located in the second slot in the 4n−3 layer.

A stator for an electric machine has a plurality of pins, which are arranged on concentric circles at different distances from a stator center point in slots and each concentric circle forms a layer, wherein four pins in different layers are respectively connected to one another in series and form a winding, a first pin of the winding is located in a first slot in the 4n−1 layer, wherein n is a natural number, a second pin of the winding is located in a second slot in the 4n layer, wherein the second slot is at a first radial distance from the first slot in a first circumferential direction of the stator, a third pin of the winding is located in the first slot in the 4n−3 layer, a fourth pin of the winding is located in the second slot in the 4n−3 layer.

A winding for a stator comprises (i) a plurality of first end turns provided on a first end of the stator core, (ii) straight portions extending through the slots, and (iii) a plurality of second turns provided on a second end of the stator core. The straight portions are arranged in layers in the slots in a number of layers. Each of the second end turns connects straight portions in two consecutive layers of two slots and is defined by a first common twist associated with one of the two consecutive layers and a second common twist associated with another of the two consecutive layers. The first common twist and the second common twist are identical for the second end turns in a first half of consecutive layers, and the first common twist and the second common twist are different for the second end turns in a second half of consecutive layers.

A winding for a stator comprises (i) a plurality of first end turns provided on a first end of the stator core, (ii) straight portions extending through the slots, and (iii) a plurality of second turns provided on a second end of the stator core. The straight portions are arranged in layers in the slots in a number of layers. Each of the second end turns connects straight portions in two consecutive layers of two slots and is defined by a first common twist associated with one of the two consecutive layers and a second common twist associated with another of the two consecutive layers. The first common twist and the second common twist are identical for the second end turns in a first half of consecutive layers, and the first common twist and the second common twist are different for the second end turns in a second half of consecutive layers.

Provided is a rotating electric machine capable of downsizing a coil end. The rotating electric machine includes an armature core and a plurality of coils. The plurality of coils each include a plurality of turn portions. The plurality of turn portions each include an inner-layer-side turn portion and an outer-layer-side turn portion. The inner-layer-side turn portion includes a first inner-layer-side bent portion, a first inner-layer-side oblique portion, and an inner-layer-side shift portion which is twisted. The outer-layer-side turn portion includes a first outer-layer-side bent portion, a first outer-layer-side oblique portion, and an outer-layer-side shift portion. The outer-layer-side shift portion has the inner-layer-side shift portion arranged between the outer-layer-side shift portion and the armature core.

Provided is a rotating electric machine capable of downsizing a coil end. The rotating electric machine includes an armature core and a plurality of coils. The plurality of coils each include a plurality of turn portions. The plurality of turn portions each include an inner-layer-side turn portion and an outer-layer-side turn portion. The inner-layer-side turn portion includes a first inner-layer-side bent portion, a first inner-layer-side oblique portion, and an inner-layer-side shift portion which is twisted. The outer-layer-side turn portion includes a first outer-layer-side bent portion, a first outer-layer-side oblique portion, and an outer-layer-side shift portion. The outer-layer-side shift portion has the inner-layer-side shift portion arranged between the outer-layer-side shift portion and the armature core.