| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a DC motor ceiling fan that reduces influence of electrical noise caused by a DC motor and heat of surrounding illumination apparatus on control boards. <P>SOLUTION: The control boards 13 are arranged below a DC motor 11 while sandwiching a fan 12 between the DC motor and the control boards, so that they are not affected by the electrical noise caused by the motor 11. In addition, convection current of air can be generated by plate-shaped protrusions 18 provided in fixing sections 17 of the fan 12, and the rise of temperatures around the control boards 13 can be prevented. <P>COPYRIGHT: (C)2009,JPO&INPIT |
