Mintz Levin Cohn Ferris Glovsky and Popeo, P.C.
Rotor fixing unit for drive motor
A rotor fixing unit for a drive motor serves which fixes a rotor core to a shaft is provided. In particular, a plurality of keyway portions, which includes first keyways formed in an axial direction of the shaft, and second keyways connected to the first keyways in a rotation direction, are formed in an outer circumferential surface of the shaft. Additionally, a plurality of key protrusions, which are each coupled to each of the keyway portions, respectively, are formed on an inner circumferential surface of the rotor core, and fixing members for fixing the shaft and the rotor core are then inserted into the first keyways to fix the key protrusions in the second keyways.
Hyundai Motor Company
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Jung Shik Sanghoon Hyoungjun Woong Chan Kyoungbum
Kim Moon Cho Chae Kim