| 摘要 |
PROBLEM TO BE SOLVED: To stabilize rotation of a rotor, reduce vibration noise, and improve pumping efficiency, in an outer rotor type motor constitution. SOLUTION: A stator 3 constituted by winding a coil 14 around a core 13 is disposed in a casing 2. A shaft 16 is disposed at a center of the stator 3, and the rotor 4 can be rotated around an outer periphery of the stator 3. The shaft 16 functions as the center of the rotation of the rotor 4. Impellers 5 can be rotated integrally with the rotor 3. Along with rotation of the impeller 5, liquid sucked from an suction port 9 into a pump chamber 11 is discharged from a discharge port 10 to the outside. The shaft 16 passing through the stator 3 is fixed to the member 3. A tip part 16b of the shaft 16 rotatably supports the rotor 4. A lower plate 8 supports a base end part 16a of the shaft 16 thereon. The stator 3 and the casing 2 are made of resin and integrally molded. COPYRIGHT: (C)2005,JPO&NCIPI
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