To provide a drainage pump, which is reduced in size and weight without lowering pumping function and can reduce a space for installing the drainage pump to an indoor device to implement size reduction of the indoor device.
The drainage pump is installed to the indoor device of an air conditioner. In the drainage pump, a pump chamber is constituted of an upper casing 1 and a lower casing 2. An air flow inlet port 18 and a drain discharge port 22 are provided in the upper casing 1. The lower casing 2 is provided with: a first space S1 communicating to a suction port 20 for drain water and the air flow inlet port 18, and accommodating moving vanes 12 connected with a rotation axis 10 of a driving motor M; and a second space S2 communicating to the first space and the drain discharge port 22 of the upper casing 1.
KOMATA MICHIO
OGASAWARA MOTOO
TAGUCHI KATSUYA
KASUYA AKIRA
