Rotor with a cover plate for securing a magnet in the rotor

Details Rotor with a cover plate for securing a magnet in the rotor Rotor with a cover plate for securing a magnet in the rotor

2005-12-19

2009-11-03

Leung, Quyen (Department: 2834)

Electrical generator or motor structure

Dynamoelectric

Rotary

C310S156530, C310S156540, C310S156560

Reexamination Certificate

active

07612481

ABSTRACT:
The invention provides a rotor for an electrical motor, e.g. a line-start motor. The rotor comprises a magnet located in a cavity in a rotor core. The core is laminated from sheets of magnetically conductive material and the magnet is secured in the cavity by an end plate which covers the end face. To avoid short circuiting of the magnet, an aperture is provided in the end plate such that a first portion of the opening into the cavity is in communication with the aperture and such that a remaining, second, portion of the cavity is covered by the end plate to secure the magnet in the cavity independently upon the orientation of the end plate around the center axis.

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