Rotor for a synchronous rotary machine

Details Rotor for a synchronous rotary machine Rotor for a synchronous rotary machine

1993-07-19

1995-03-14

Skudy, R.

Electrical generator or motor structure

Dynamoelectric

Rotary

310 45, 310 91, 310261, H02K 2112

Patent

active

053979516

ABSTRACT:
The present invention provides a rotor for a synchronous rotary machine, having a rotor core (23) provided in its outer circumference with recesses (26), and permanent magnets (25) each fitted radially in each recess (26) so that its lower surface (25b) will be seated on the bottom surface of the recess (26). Each permanent magnet (25) and each recess (26) are formed so that gaps are formed between the inclined side surfaces (27a, 27b) of the permanent magnet (25) and the corresponding inclined side surfaces (26b, 26c) of the recess (26), and an adhesive filling up the gaps is hardened to form wedging layers (30) capable of restraining the permanent magnet (25) from being separated from the surface of the rotor core (23) by forces acting on the permanent magnet (25) to separate the permanent magnet (25) from the surface of the rotor core (23).

REFERENCES:
patent: 4556809 (1985-12-01), Beisse
patent: 4642502 (1987-02-01), Carpenter
patent: 4954736 (1990-09-01), Kawamoto
patent: 5038065 (1991-08-01), Matsubayashi
Patent Abstracts of Japan, vol. 9, No. 284 (E-357) (2007), Nov. 12, 1985, & JP-A-60 125 149, Jul. 4, 1985.
Patent Abstracts of Japan, vol. 7, No. 107 (E-174) (1252), May 11, 1983, & JP-A-58 029 359, Feb. 21, 1983.
Patent Abstracts of Japan, vol. 14, No. 297 (E-945 (4240), Jun. 27, 1990, & JP-A-02 095 150, Apr. 5, 1990.

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