To enable a magnetic flux feedback ring to work as a vibration eliminating device and thereby make unnecessary the secondary buffer and/or shield means by manufacturing the magnetic flux feedback ring with a string or line type magnetic material.
A motor shaft 12 supporting a rotor is supported with a motor casing 11 including a bearing section 13 and a bearing cover 14, and moreover a casing (pole easing 16) supporting magnetic poles is arranged between the bearing section 13 and bearing cover 14. The pole casing 16 is formed of a magnetic thin plate, particularly of a corrosion-proof thin plate, and it is integrally formed with the bearing section 13 to be coupled adequately with the bearing cover 14 and bearing section 13. The pole casing 16 is also provided with a magnetic flux feedback ring 17 formed of a string type or line type conductive material. Basically, the magnetic flux feedback ring 17 uses a plane type structure body as a whole consisting of a string type or line type material having sufficient rigidity to form a ring type cover.
| WO/2017/149593 | ROTATING ELECTRIC MACHINE AND ROTATING ELECTRIC MACHINE MANUFACTURING METHOD |
| JP2009171703 | ELECTRIC MOTOR |
LEHNERT WALTER
ALLGEIER CHRISTIAN
BRASS OTTO
