Method and apparatus for manufacturing a rotor assembly

Details Method and apparatus for manufacturing a rotor assembly Method and apparatus for manufacturing a rotor assembly

H - Electricity

02

K

H02K 1/27 (2006.01) H02K 15/03 (2006.01)

Patent

CA 2133640

2133640 9422203 PCTABS00033 Past methods and apparatus for manufacturing a rotor assembly have been used to provide rotor assemblies for rotating electric machines. Many of these electric machines rotate at low speeds. The present method and apparatus for manufacturing a rotor assembly can be used to make a rotor assembly (16) to be used at high speeds. The rotor aassembly (16) includes a shaft (24) having a frustoconical mounting surface (26) defined thereon and having a plurality of magnets (70) attached to the frustoconical mounting surface (26). A cover (80) having a frustoconical inner surface (82) surrounds the magnets (70) and compressively secures the magnets (70) to the shaft (24). The compressive forces applied by the cover (80) and the adhesive used to secure the magnets (70) insuring that a positive contact pressure exists between the magnets (70) and the shaft (24) during operation of the electric machine.

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