| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a blower capable of sufficiently preventing entry of dust into the inside of a rotor where a motor is housed and capable of efficiently preventing motor lock as compared with conventional ones. <P>SOLUTION: An opening 21 of a rotor 20 where a motor 35 is housed and a circuit board 40 are covered with a cover 50A joined to a rotor cup 22. When the cover 50A is rotated, an air current flowing from the inside of the cover 50 to the outside is generated by a fin (air current generation means) 54 formed at the cover 50A, and the entry of dust into the rotor 20 is prevented. <P>COPYRIGHT: (C)2013,JPO&INPIT</p> |
