PERFECT WATERPROOF FLUID PUMP

摘要

PURPOSE: A fluid pump having a complete waterproof is provided to improve the efficiency of a motor by optimally maintaining the magnetic gap between the rotor of an electric motor and a stator without a separate waterproof process. CONSTITUTION: A fluid pump having a complete waterproof comprises an upper case(15), a lower case(14), a support shaft(27), a driving motor(1) and an impeller(43). In the pump upper case, an inlet port(15a) in which the fluid is induced is arranged in the one-side end center and a vent(15b) in which the induced fluid is discharged is extendly formed. The driving motor comprises a first rotor(20), a second rotor(30) and a stator(26). The first rotor is arranged in the internal space of the lower case and is rotatably coupled in the support shaft. The second rotor is arranged in the fluid flow passage and is rotatably coupled in the support shaft. The stator is into one body formed in the top plate of the lower case and rotates the first rotor and second rotor.