| 摘要 |
PROBLEM TO BE SOLVED: To provide a practical means of forming a stator with two sheets of the printed circuit board in a brushless motor, in which a drive coil, a wave winding to generate a speed control signal and a coil for generating a phase control signal are formed with copper patterns on the printed circuit board and such a printed circuit board is laminated to form a stator. SOLUTION: On the first printed circuit board 4, a drive coil 14, wave winding coils 16, 17, 18 for generating a speed control signal, an eddy winding coil 15 for generating a phase control signal are formed respectively with a copper pattern. On the second printed circuit board 5, a drive coil 20 and an eddy winding coil 29 for generating phase control signal are formed with copper patterns. These two sheets of printed circuit board 4, 5 are joined, so that the drive coils and winding coils are overlapped with each other, and the overlapped drive coils and winding coils are respectively connected electrically in series. |
