| 摘要 |
PROBLEM TO BE SOLVED: To provide a brushless DC motor which is capable of reducing generation of cogging torque and also has noise reduction effects.SOLUTION: The brushless DC motor comprises two stators 21 which are installed while being arrayed along a homologous axial center. Each of the stators 21 includes a toric main body 211. On the main body 211, stator teeth 212 are installed which extend toward a center of the main body 211 and in a terminal of each of the stator teeth 212, a chip 213 is installed. On each of the stator teeth 212, a coil 214 with a predetermined gate number is wound and installed. The chips 213 of the two stators 21 are enclosed while crossing each other and present a structural form in a circular hole shape. A rotor 22 is installed on a shaft 221 while surrounding a plurality of permanent magnets 222. Further, all the permanent magnets 222 are arrayed and installed in an outer circumference of the shaft 221 in accordance with an N-pole/S-pole crisscross arrangement system. The rotor 22 is continuously rotated in the same direction in accordance with a system for alternately driving coil circuits of the two stators 21.SELECTED DRAWING: Figure 2 |
