MOTOR-DRIVEN CENTRIFUGAL BLOWER, AND VACUUM CLEANER USING THE SAME

• Main Authors: HAMAZAKI MITSUMASA, HAYATSU MAMORU, YOSHINO ISATO, KATO YASUAKI
• Format: Patent
• Language: English; Japanese
• Published: 12.02.2015
• Subjects: BLASTING; COFFEE MILLS; DOMESTIC ARTICLES OR APPLIANCES; DOMESTIC WASHING OR CLEANING; FURNITURE; HEATING; HUMAN NECESSITIES; LIGHTING; MECHANICAL ENGINEERING; NON-POSITIVE DISPLACEMENT PUMPS; POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS; SPICE MILLS; SUCTION CLEANERS IN GENERAL; WEAPONS

PROBLEM TO BE SOLVED: To provide a motor-driven centrifugal blower capable of easily forming a cut and removed portion in adjusting a rotational balance.SOLUTION: A motor-driven centrifugal blower and the like includes a motor, a rotating shaft 9, a diffuser air trunk portion 17, a hub 11, a plurality of rotary vanes 12, and a shroud 13. The hub 11 is formed so that its outer peripheral radius is agreed with an outer peripheral radius of the plurality of rotary vanes 12, and an inclined face formed under assumption that an edge portion at a rotary vane side, of a plurality of stationary vanes 7, an outer edge portion of the hub 11, and an outer edge portion of the shroud 13 are connected, is inclined in the direction to separate from the rotating shaft from the hub 11 side toward the shroud 13 side. 【課題】回転バランスの調整を行う際の切断削除部を容易に形成し得る電動遠心送風機等を提供する。【解決手段】電動遠心送風機等は、電動機と、回転軸９と、ディフューザ風路部１７と、ハブ１１と、複数の回転翼１２と、シュラウド１３と、を備え、前記ハブ１１は、外周半径が前記複数の回転翼１２の外周半径と一致するように形成され、前記複数の静翼７の前記回転翼側の縁部及び前記ハブ１１の外縁部と前記シュラウド１３の外縁部とを繋げたと仮定した際に形成される傾斜面は、前記ハブ１１側から前記シュラウド１３側に向かうにつれて前記回転軸から離れる方向に傾斜した。【選択図】図２