| 摘要 |
PROBLEM TO BE SOLVED: To provide a magnetic coupling pump device reducing a size. SOLUTION: The magnetic coupling pump device 1 has a motor chamber 2 and a pump chamber 4 opposed to the motor chamber 2 with a partition 30 therebetween. A motor 20 is disposed in the motor chamber 2, which comprises a stator 23, a motor rotary shaft 24, a rotor 21 held on the motor rotary shaft 24, a rotor magnet 25 held on the rotor 21 opposite to the stator 23, and a driving magnet 8 held on the rotor 21. A driven magnet 9 opposed to the drive magnet 8 with the partition 30 therebetween and an impeller 10 rotatable together with the driven magnet 9 are disposed in the pump chamber 4. The motor section has "a circumference opposite structure" in which the rotor magnet 25 is located on the outer peripheral side of the stator 23 and the magnetic coupling section has "a circumference opposite structure" in which the driven magnet 9 is located on an outer peripheral side of the drive magnet 8. COPYRIGHT: (C)2007,JPO&INPIT
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