Abstract: A stator for a rotating electric machine includes a laminated core, and an electrically conductive winding including a winding top layer with electrically conductive top bars, and a winding bottom layer with electrically conductive bottom bars. Each groove of a stator segment of the laminated core has arranged therein a top bar and a bottom bar in adjacent relationship. The top and bottom bars protrude out of the grooves. A connecting element connects a free end of a top bar to a free end of a bottom bar of an adjacent stator segment and includes an inclined section to connect two ends of the connecting element. The ends are angled relative to the inclined section. One end of the connecting element is connected to the free end of the bottom bar and the other end of the connecting element is connected to the free end of the top bar.

Abstract: The invention relates to a fluid-cooled active part (1) for an electric machine (38), wherein the active part (1) is substantially cylindrical or hollow cylindrical, having axially extending grooves (2), at least one electrical conductor (3), which is arranged in the associated groove (2) at least in some sections and which is composed of a plurality of partial conductors (4), one or more main insulators (5), each arranged between the associated conductor (3) and the associated groove (2), and partial-conductor insulators (6), each surrounding the associated partial conductor (4). The invention further relates to an electric machine (38), having such a fluid-cooled active part (1) designed as a stator (39) and/or such a fluid-cooled active part (1) designed as a rotatably mounted rotor (40), wherein the electric machine (38) can be operated with a voltage in the range of at least a few kilovolts, preferably a few tens of kilovolts.

Abstract: A rotor for an electric rotating machine, in particular a synchronous machine includes a shaft that can rotate about an axis of rotation, and at least one pole shoe. In order to improve vibration properties, the pole shoe includes a pole shoe body and a pole shoe sheet metal which rests on a radially outer surface of the pole shoe body.

Abstract: The invention relates to a fluid-cooled active part (1) for an electric machine (38), wherein the active part (1) is substantially cylindrical or hollow cylindrical, having axially extending grooves (2), at least one electrical conductor (3), which is arranged in the associated groove (2) at least in some sections and which is composed of a plurality of partial conductors (4), one or more main insulators (5), each arranged between the associated conductor (3) and the associated groove (2), and partial-conductor insulators (6), each surrounding the associated partial conductor (4). The invention further relates to an electric machine (38), having such a fluid-cooled active part (1) designed as a stator (39) and/or such a fluid-cooled active part (1) designed as a rotatably mounted rotor (40), wherein the electric machine (38) can be operated with a voltage in the range of at least a few kilovolts, preferably a few tens of kilovolts.

Abstract: An active part of an electric machine includes at least two teeth, each having a magnetically permeable material and protruding from a lateral surface of the active part in a radial direction. Each tooth has an open recess in a plane spanned by a substantially radial direction and a direction substantially along an axis of rotation. A winding groove is arranged between the two teeth substantially along an axis of rotation of the active part for receiving an electrical winding. Arranged at least partially in the open recess is a thermally conductive element having a thermally conductive material with a thermal conductivity which is greater than a thermal conductivity of the magnetically permeable material.

Abstract: An active part of an electric machine includes at least two teeth, each having a magnetically permeable material and protruding from a lateral surface of the active part in a radial direction. Each tooth has an open recess in a plane spanned by a substantially radial direction and a direction substantially along an axis of rotation. A winding groove is arranged between the two teeth substantially along an axis of rotation of the active part for receiving an electrical winding. Arranged at least partially in the open recess is a thermally conductive element having a thermally conductive material with a thermal conductivity which is greater than a thermal conductivity of the magnetically permeable material.

Abstract: A stator constructed for an electrical machine and operable at an electrical power of at least 1 MW includes a hollow-cylinder-shaped stator yoke defining an axis and having a radially inner side formed with an open groove which extends in an axial direction. Disposed in surrounding relation to the stator yoke is a toroidal coil which includes a groove segment arranged in the open groove, a back segment arranged on a radially outer face of the stator yoke, and axial end faces, with each axial end face having a radial segment to connect the groove segment to the back segment.

Abstract: An electric machine includes a rotor and a stator which is disposed in surrounding relation to the rotor and includes a plurality of laminated sub-cores arranged behind one another in an axial direction which is parallel to an axis of rotation of the rotor. Adjacent ones of the laminated sub-cores are separated from one another by a flow channel which is open in a direction of the rotor to allow supply of cooling gas to the rotor for cooling the rotor. A channel plate is placed to delimit a laminated sub-core from the flow channel. The channel plate has a rotor-side end section to deflect a cooling gas flow along the flow channel from a radial direction that points toward the axis of rotation.