Electrical machine, especially alternator for motor cars

US5233249A · kind A · utility

Assignee

• Robert Bosch GmbH · DE

Inventors

• Roland Schaeftlmeier · Winnenden, DE
• Gerhard Pflueger · Markgröningen, DE
• Bernhard Fakler · Eßlingen, DE
• Klaus-Georg Buerger · Markgröningen, DE
• Albrecht Knorpp · Murr, DE

Key dates

• Filing date: Feb 5, 1992
• Grant date: Aug 3, 1993
• Expiry date: Feb 5, 2012

Classification

• Technology area (CPC H): Electricity
• CPC primary: H02K9/227
• WIPO field: Electrical machinery, apparatus, energy
• WIPO sector: Electrical engineering

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.