| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a brushless DC motor which reduces a ripple in the output voltage of a Hall IC by holding a circuit board at an insulator without fail, and an axial fan using the brushless DC motor. <P>SOLUTION: The brushless DC motor includes a stator 8 equipped with an insulator 12 covering and insulating a stator core 11, a rotor 9, and a circuit board 25, wherein the circuit board 25 is held by and fixed to the insulator 12. In the motor, the insulator 12 is equipped with a cylindrical part and an arm which extends radially outward from the cylindrical part and covers the stator core 11. An engaging part 14d, in which an engaging claw 14e is formed, is formed in the cylindrical part, and the circuit board 25 and an elastic member 26 are interposed between the cylindrical part of the insulator 12 and the engaging claw 14e, and the circuit board 25 is held by and fixed to the insulator 12. <P>COPYRIGHT: (C)2011,JPO&INPIT</p> |
