| 摘要 |
PURPOSE: A drainage pump which can be applied with a BLDC motor, in which a rotor and a stator are installed in outside and inside of housing, respectively, is provided to improve performance of a motor and pump by preventing the inflow of washing water and drain water to housing of a drainage pump. CONSTITUTION: A drainage pump comprises a housing(110), a stator(120), a rotor(130) and an impeller(200). The housing is combined in a thump in which the water is collected. The stator is fixed inside the housing. The rotor is installed at outside of the housing. The impeller pumps out the water to outside and is connected with the rotor. The housing is composed of a first housing and a second housing. A rib having a fixed height is formed on the outer circumference of one housing of the first and second housings. |
