| 摘要 |
PROBLEM TO BE SOLVED: To realize high revolution, high efficiency and low power consumption DC brushless motor in which the magnetic forces of rotor magnets are efficiently utilized over the whole circumference of a rotor for improving the driving efficiency of the motor, and a polygon scanner employing the DC brushless motor. SOLUTION: A plurality of winding parts 23a are arranged on a circumference with same intervals so as to make the even number (n) of winding parts 23a correspond to one phase, and windings adjacent to each other in the same phase are wound and connected to show polarities opposite to each other, when a current is applied to form 3-phase winding groups U, V and W. Furthermore, the 3-phase winding groups are connected to each other into a Y-connection and arranged so as to have the adjacent windings with polarities opposite to each other, when currents are made to flow from the side of the common connection point of the Y-connection. |
