| 摘要 |
PROBLEM TO BE SOLVED: To provide a blower fan having a compact outer shape which has advantage for downsizing a device. SOLUTION: A hollow board-like fan main body 15 has an air chamber 14 between a front surface section 11 and a rear surface section 12 arranged to face each other. A plurality of suction ports 33 which become smaller toward the air chamber 14 from the external and a plurality of exhaust ports 34 which become smaller toward the external from the air chamber 14 are provided. A film-like vibrating body 16 which vibrates to increase/reduce the sizes of the air chamber 14 is formed on at least on the front surface section 11 or the rear surface section 12. A blower fan 10 exhausts air taken from the suction ports 33 into the air chamber 14 with vibration of the film-like vibrating body 16 to the outside through the exhaust ports 34. COPYRIGHT: (C)2009,JPO&INPIT |
