| 摘要 |
PROBLEM TO BE SOLVED: To provide a DC brushless motor which can be manufactured inexpensively and can be assembled easily in a short time. SOLUTION: The rotor comprises a central shaft 1, and a rotor core 2 consisting of two rotor modules 2A and 2B being fitted, side by side in the axial direction, over the central shaft 1. The central shaft 1 is provided with a key groove 9 in parallel with the axial direction and each rotor module is provided with a key groove 8 in parallel with the axial direction while being shifted by a specified pitch angle in the order of the key grooves 8 being fitted over the central shaft 1. When a linear key 10 is fitted in the key groove 9 of the central shaft 1 and the key groove 8 of each rotor module while arranging the key grooves 8 in the axial direction, each rotor module is secured while being skewed. COPYRIGHT: (C)2004,JPO&NCIPI
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