Electrical generator or motor structure – Dynamoelectric – Rotary
Reexamination Certificate
2007-10-23
2007-10-23
Tamai, Karl (Department: 2834)
Electrical generator or motor structure
Dynamoelectric
Rotary
C310S216006, C029S596000
Reexamination Certificate
active
10485967
ABSTRACT:
In the field of stators including divided tooth-shaped iron cores and core back iron cores, a stator is provided in which the tooth-shaped iron cores and the core back iron cores can be easily connected to each other, and the tooth-shaped iron cores and the core back iron cores can be prevented from coming off in the radial direction. In the stator of the present invention, a yoke (24) is formed such that the circumferential width thereof is greater at a radial-outer region than at a radial-inner region, i.e., such that the distance (a) between yoke side faces (24A,24A) gradually increases from a radial-inner region to a radial-outer region, and the distance (b) between two yoke side faces (24A,24A) opposing each other and facing a space between the tooth-shaped iron cores (11, 11) that are disposed along a predetermined circumference with a predetermined interval is set to be a predetermined value over a range from a radial-inner region to a radial-outer region, or alternatively, is set so as to slightly decrease from a radial-inner region to a radial-outer region. A stator (10) is formed by inserting each of the core back iron cores (12) into a space between the tooth-shaped iron cores (11, 11) adjacent to each other. The present invention also provides a stator in which a packing factor can be increased and the magnetic flux can be made smooth, and a manufacturing method therefor.
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Machine translation of JP 06-153465, JP 07-163074 (supplied by applicant) & JP 2000-156947 (supplied by applicant).
Arai Takeo
Atarashi Hirofumi
Endo Yasuhiro
Fukuda Takeo
Igarashi Kazuaki
Tamai Karl
Westerman, Hattori, Daniels & Adrian , L.L.P.
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