Abstract: An electrical machine, preferably a three-phase alternator for vehicles, has a surface-cooled stator which has two stator plate stacks arranged one after the other in the axial direction with two stator windings inserted in the latter. The winding ends of the stator windings, which windings ends project out at the front side, and the two stator plate stacks are enclosed by a metal housing and fitted into the latter so as to conduct heat. For manufacturing the stator in a simple and compact manner accompanied by good heat conduction the stator plate stacks be be embedded in a heat conducting plastic together with spacing means and connection parts contacting the connection conductors of the stator windings in a compression mold with a base part supporting the connection parts so as to form a constructional unit.

Abstract: The electric machine, preferably a three-phase generator (10) for vehicles with a liquid-cooled, pot-shaped metal housing (20) includes two three-phase systems arranged in the house and situated one after the other in the axial direction, a drive shaft (13) received in the base of the metal housing on one end and in a bearing cover (18) on the drive end. For a compact connection of the two three-phase systems and exciter systems with rectifier units and regulators the electrical connections of the three-phase and exciter windings (31, 32; 14, 15) are received in the bearing cover (18) so that they are electrically connected with positive and negative diodes (44, 45) of the rectifier units arranged externally on the bearing cover (18) and with the regulators and connection terminals (22) of the machine via printed circuit boards (65, 80).

Abstract: An electrical machine has a surface-cooled stator having two stator plate stacks provided with slots and two stator windings arranged one after the other in an axial direction and inserted in the slots of the stator plate stack, a drive shaft, two pole systems cooperating with the stator windings, a metal housing arranged so that winding ends of the stator windings project outwardly beyond the metal housing and the two plate stacks are enclosed by the metal housing and fitted in the latter so as to conduct heat. The two stator plate stacks are offset relative to one another by half a slot spacing and, together with the winding ends of the stator windings are embedded in heat conducting plastic to form a prefabricated construction unit.