DRAIN PUMP

According to the present invention, a drainage pump comprises: a rotor accommodated in a rotor accommodation unit to provide a rotational force to an impeller; and first and second bearings disposed on both sides of the axial direction of the rotor to support the rotor in the axial direction. The ro...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: KIM CHANGSUB, SONG CHANGHYEON, OH YOUNGJIN, CHO SANGYOUNG, LEE SEONJOONG
Format: Patent
Sprache:eng ; kor
Schlagworte:
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Beschreibung
Zusammenfassung:According to the present invention, a drainage pump comprises: a rotor accommodated in a rotor accommodation unit to provide a rotational force to an impeller; and first and second bearings disposed on both sides of the axial direction of the rotor to support the rotor in the axial direction. The rotor comprises: a magnet; a rotary shaft disposed in the center of the magnet; a rotor cover coupled to the magnet and the rotary shaft; and first and second washers disposed at both ends of the axial direction of the rotor cover to form an axial bearing surface with the first and second bearings. Therefore, abrasion of the rotor caused by the bearings can be suppressed. 본 발명에 따른 배수펌프는, 로터수용부에 수용되어 임펠러에 회전력을 제공하는 로터; 및 상기 로터의 축방향 양쪽에 각각 구비되어 상기 로터를 축방향으로 지지하는 제1 및 제2 베어링;을 포함하고, 상기 로터는, 자석, 상기 자석의 중심에 구비되는 회전축, 상기 자석과 회전축에 결합되는 로터커버, 및 상기 로터커버의 축방향 양단에 각각 구비되어 상기 제1 및 제2 베어링과 축방향 베어링면을 이루는 제1 와셔 및 제2 와셔를 포함함으로써, 베어링에 의해 로터가 마모되는 것을 억제할 수 잇다.