公开(公告)号：US20210079923A1

公开(公告)日：2021-03-18

申请号：US17103114

申请日：2020-11-24

Applicant: DENSO CORPORATION

Inventor： Takashi KUSADA ,  Tsukasa OHZAWA ,  Sotaro SAITO

IPC: F04D25/08 ,  F04D29/42 ,  F04D29/66

Abstract: An electric blower includes a fan, an electric motor, a motor holder, and a fan casing. The fan casing includes a facing wall and the motor holder includes an extending portion overlapping with the facing wall in an axial direction. The facing wall and the extending portion include attachment portions that connect the motor holder to the fan casing and non-attachment portions between the attachment portions. Either one of the facing portion and the extending portion includes an annular protrusion. The other includes an annular fitting recess into which the annular protrusion is fit. A contacting load is defined by a load applied to the annular protrusion and the annular fitting recess in the axial direction or an intersecting direction intersecting the axial direction. At least one of the non-attachment portions receives the contacting load that is greater than the contacting load applied to each of the attachment portions.