Rotor core manufacturing method, and rotor core molding system therefore
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United States of America
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Dec 31, 2024
Grant Date -
Jul 11, 2024
app pub date -
Apr 19, 2022
filing date -
Apr 19, 2022
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Abstract
A rotor core manufacturing method and system allow for molding permanent magnets in an unmolded rotor core to provide an electric motor molded rotor core. The unmolded rotor core includes a shaft and rotor core body having a central through-hole along a longitudinal axis, magnet cavities around the axis with magnets therein. The shaft lies in the central through-hole and projects therefrom, and the molded rotor core includes the rotor core body having the magnets fixed in the cavities. The method includes inserting an unmolded rotor core between the first and second molds of a rotor core molding system; moving the molds together to clamp the rotor core body of the unmolded rotor core with a predetermined pressure; providing a molding material into the magnet cavities; letting the molding material cure within the magnet cavities to a molded rotor core; opening the molds and removing the molded rotor core.
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