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1. (WO2014207208) ELECTRICAL MACHINE

Pub. No.:    WO/2014/207208    International Application No.:    PCT/EP2014/063709
Publication Date: Thu Jan 01 00:59:59 CET 2015 International Filing Date: Sat Jun 28 01:59:59 CEST 2014
IPC: H02K 29/03
H02K 1/16
Applicants: ROBERT BOSCH GMBH
Inventors: TSCHEJA, Markus
Title: ELECTRICAL MACHINE
Abstract:
The invention concerns an electrical machine, in particular an alternating current generator, comprising a rotor (3), which has at least two poles (9, 10), and a stator (7) which surrounds the rotor (3) in annular manner and has a yoke (6) which is formed from a stator core. During rotation, the magnetic flux in the stator (7) is influenced by at least one first manufacturing magnetic bottleneck (13) which is disposed at a peripheral position of the stator (7), the first magnetic bottleneck being designed as a joint (12). A second magnetic bottleneck (13) is disposed in a peripheral direction of the stator (7) offset at a spacing relative to the first magnetic bottleneck (13). The invention is characterized in that the at least one second magnetic bottleneck (13) is disposed at a spacing from the first magnetic bottleneck (13) on the stator (7) such that the second magnetic bottleneck (13) is disposed in a region including a tooth (4) which is closest to the first magnetic bottleneck (13) up to and including a position of a half pole pitch of the rotor (3).