Electrical generator or motor structure – Dynamoelectric – Rotary
Reexamination Certificate
2006-11-27
2009-10-20
Nguyen, Tran N (Department: 2834)
Electrical generator or motor structure
Dynamoelectric
Rotary
C310S156560, C310S156570
Reexamination Certificate
active
07605510
ABSTRACT:
Permanent magnets52a1, 52a2are inserted into magnet insert holes51a1, 51a4formed in a main magnetic pole50A of a rotor50. An outer circumferential surface of the rotor includes a first outer circumferential surface portion50awhich intersects with a d-axis and second outer circumferential surface portions50da,50abwhich intersect with a q-axis. A radius R2of curvature of the second outer circumferential surface portions50da,50abis larger than a radius of curvature of the first outer circumferential surface portions50a. Recesses50a1, 50a2are formed in the second outer circumferential surface portions50da,50aband in a position to face end walls51a2, 51a5of the magnet insert holes51a1, 51a4which are adjacent to the outer circumferential surface of the rotor. It is constructed such that [(74/P)°≦θ≦(86/P)°] and [(16/P)°≦α≦(48/P)°], where θ is a mechanical angle of the first outer circumferential surface portion50a, P is the number of pairs of poles of the rotor50, and α is a mechanical angle of the recesses50a1, 50a2.
REFERENCES:
patent: 6049153 (2000-04-01), Nishiyama et al.
patent: 6087752 (2000-07-01), Kim et al.
patent: 6300700 (2001-10-01), Nishiyama et al.
patent: 6356001 (2002-03-01), Nishiyama et al.
patent: 6369480 (2002-04-01), Nishiyama et al.
patent: 6525442 (2003-02-01), Koharagi et al.
patent: 6759778 (2004-07-01), Nishiyama et al.
patent: 6917133 (2005-07-01), Koharagi et al.
patent: 6979924 (2005-12-01), Nishiyama et al.
patent: 711859 (1995-02-01), None
patent: 07222384 (1995-08-01), None
patent: 2000197292 (2000-07-01), None
patent: 2000350393 (2000-12-01), None
patent: 2001086672 (2001-03-01), None
patent: 2001178045 (2001-06-01), None
patent: 2002010541 (2002-01-01), None
patent: 2002027690 (2002-01-01), None
patent: 2002078255 (2002-03-01), None
patent: 2002101629 (2002-04-01), None
patent: 2002136011 (2002-05-01), None
patent: 2002238193 (2002-08-01), None
patent: 2002315243 (2002-10-01), None
patent: 2003284275 (2003-10-01), None
patent: 2004260972 (2004-09-01), None
patent: 2005086955 (2005-03-01), None
patent: 2005168183 (2005-06-01), None
Doki Shinji
Kaneko Seiichi
Okuma Shigeru
Sato Mitsuhiko
Tomita Mutsuo
Aichi Elec Co.
Dennison, Schultz & MacDonald
Nguyen Tran N
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