Magnetic return path and permanent-magnet fixing of a rotor
A rotor for an electric motor having a short-circuit element that has lamination packets in which the laminations of the short-circuit element are embodied with spring elements which press from two sides against permanent magnets of the rotor and as a result center the permanent magnets in the later...
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Main Author | |
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Format | Patent |
Language | English |
Published |
27.01.2005
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Edition | 7 |
Subjects | |
Online Access | Get full text |
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Summary: | A rotor for an electric motor having a short-circuit element that has lamination packets in which the laminations of the short-circuit element are embodied with spring elements which press from two sides against permanent magnets of the rotor and as a result center the permanent magnets in the lateral direction independently of production tolerances. After the insertion of the permanent magnets between the spring elements, the short-circuit element with the permanent magnets is potted, for instance with synthetic resin, or spray-coated with plastic. The rotor has the advantage that it compensates for production tolerances of the permanent magnets. |
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Bibliography: | Application Number: US20040499362 |