(19)
(11) EP 1 976 097 A8

(12) CORRECTED EUROPEAN PATENT APPLICATION
Note: Bibliography reflects the latest situation

(15) Correction information:
Corrected version no 1 (W1 A2)

(48) Corrigendum issued on:
25.03.2009 Bulletin 2009/13

(43) Date of publication:
01.10.2008 Bulletin 2008/40

(21) Application number: 08003686.6

(22) Date of filing: 28.02.2008
(51) International Patent Classification (IPC): 
H02K 3/28(2006.01)
(84) Designated Contracting States:
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR
Designated Extension States:
AL BA MK RS

(30) Priority: 29.03.2007 JP 2007087357
24.01.2008 JP 2008013229

(71) Applicant: Hitachi, Ltd.
Chiyoda-ku Tokyo 100-8280 (JP)

(72) Inventors:
  • Takahashi, Kazuhiko, c/o Hitachi, Ltd., Intellectual Property Group
    Chiyoda-ku, Tokyo 100-8220 (JP)
  • Sukeda Masami, c/o Hitachi, Ltd., Intellectual Property Group
    Chiyoda-ku, Tokyo 100-8220 (JP)
  • Saeki, Mitsuru, c/o Hitachi,Ltd., Intellectual Property Group
    Chiyoda-ku, Tokyo 100-8220 (JP)
  • Hattori, Kenichi, c/o Hitachi Ltd., Intellectual Property Group
    Chiyoda-ku, Tokyo 100-8220 (JP)

(74) Representative: Beetz & Partner 
Patentanwälte Steinsdorfstrasse 10
80538 München
80538 München (DE)

   


(54) Rotary electric machine


(57) A rotary electric machine (100) according to present invention comprises a rotor (51) and a stator (30) disposed around the rotor (51) in which the stator (30) includes a stator core (30a) having, along its inner periphery region, a plurality of axially extending stator slots (17) and an armature winding wound through the stator slots (17). In this rotary electric machine (100), each stator slot (17) contains four radially layered armature bars (1a, 1b, 1c, 1d); each armature winding is formed by electrically connecting at least one of the armature bars (1a, 1b, 1c, 1d) in a first slot (17) and at least one of the armature bars (1a, 1b, 1c, 1d) in a second slot (17) to each other; and the armature bars of a pair specified in accordance with a required output voltage of the rotary electric machine are connected to each other with a connecting piece.