| 摘要 |
PROBLEM TO BE SOLVED: To provide a slim and highly-efficient miniaturizable blower. SOLUTION: A bell mouse-integrated impeller 1 is formed by integrating an impeller with a bell mouth guiding an air flow to be taken in the impeller. A motor rotatively driving the impeller 1 is provided with a rotor 3 attached to the side of the impeller 1 and a stator 4 attached to a fixed end 7. In the bell mouth-integrated impeller 1, there is no clearance between a bell mouth portion 1a and an impeller portion 1b, discontinuous guiding of the air flow is canceled, and air is prevented from being leaked through the clearance. An enlargement loss is reduced also in the air flow to exhibit high efficiency. Further, property fluctuation caused by the clearance is eliminated to stabilize air blowing efficiency. Since the axial length of the motor is shortened, it is possible to provide a small blower. COPYRIGHT: (C)2010,JPO&INPIT
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