| 摘要 |
PROBLEM TO BE SOLVED: To provide a fan motor, having a simple and inexpensive structure, which is capable of reduction in size, weight, and thickness even if it is increased in the quantity of air, and moreover promoting long service life. SOLUTION: A plurality of stators 3 are fixed to a fan frame 1, aligned in the rotational direction around a rotating shaft 2A of an impeller blade 2. The blade 2 is fixed to a central part 1A of the fan frame 1 via the rotating shaft 2A and a bearing 11 to be rotatable around the rotating shaft 2A at a prescribed interval from the inner peripheral walls of the respective stators 3 on the inner peripheral sides of the stators 3. The blade 2 has four vanes integrally/molded with a plastic magnet, which are formed so as to function as a rotor magnet by, while being alternately magnetized in N poles and S poles one by one. It is thus possible to promote reduction in size, weight, and thickness, and even if the quantity of air is increased moreover with promotion in prolonging service life. Accordingly, while having an inexpensive constitution, even if the quantity of air is increased, promotion of making its size small, light-weight and thin is possible, moreover prolonging of its service life as well.
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