| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a blower capable of reducing noise by preventing a natural frequency of a leg from becoming a value close to a frequency of vibration of a motor by adjusting the natural frequency of the leg. <P>SOLUTION: The blower includes: a fan blade extending in a centrifugal direction from an outer peripheral surface of a hub part having a cylindrically-shaped outer peripheral surface; a driving part for supporting and driving the fan blade; and a fan case 2 which supports the driving part and has an intake port 4. The blower is characterize in that: the fan case 2 includes a plurality of legs 9a to 9c for connecting a drive side inner peripheral end of the intake port 4 to an outer peripheral end opposing to the inner peripheral end; and slits 10 for extending the legs 9a to 9c are provided on a side of the outer peripheral end of a fan frame 2a is provided, wherein as for the thicknesses of both ends of the legs 9a to 9c, the thickness of a side of the driving part is thinner than the thickness of the slits 10 side. <P>COPYRIGHT: (C)2012,JPO&INPIT |
