| 摘要 |
A pump includes a case, a base disposed in the case and a rotor. The rotor includes a magnetic extension portion which surrounds a yoke. The pump gains efficiency in view of the above without increasing volume. Furthermore, the pump includes a first magnet and a second magnet, positioned on the rotor and the inside of the case individually. A magnetic force is generated between the first and second magnets to limit the rotor to rotate in a predetermined position, increasing utility life of the pump.
|
