Patent ID: 8182215
Filing Date: 2012-05-22
Classification: F04D

Abstract:
1. An electric blower comprising: an electric motor including a motor body and a rotation shaft extending from the motor body only on one axial side of the motor body, the electric motor generating a driving force; a first casing; a second casing; a first fan located to the one axial side of the motor body and disposed in the first casing, the first fan defining a first axis of rotation aligned with the rotation shaft and being driven by the driving force; and a second fan located to the one axial side of the motor body and further than the first fan from the motor body in an axial direction, the second fan disposed in the second casing, the second fan defining a second axis of rotation aligned with the rotation shaft and being driven by the driving force; wherein the first casing has a first suction port for suctioning air into the first casing, the second casing has a second suction port for suctioning air into the second casing, the first suction port and the second suction port are open in the same direction; the first casing has a first wall and a second wall opposed to the first wall in an axial direction, the first wall has the first suction port, the second wall has a first installation hole provided for allowing the first and second fans to pass through when being installed in and separated from the first and second casings, the second casing has a third wall and a fourth wall opposed to the third wall in the axial direction, the third wall has the second suction port, the fourth wall has a second installation hole provided for allowing the second fan to pass through when being installed in and separated from the second casing, the fourth wall being opposed to the first wall in the axial direction, and the first fan, the second fan, the first installation hole, the second installation hole and the first suction port satisfy a relationship of) in which φOD