公开(公告)号：US20220258088A1

公开(公告)日：2022-08-18

申请号：US17626609

申请日：2019-10-03

Applicant: Mitsubishi Electric Corporation

Inventor： Takanori YOSHIDA ,  Shuhei YOKOTA ,  Yusuke MINE

IPC: B01D46/16 ,  B01D46/00 ,  B01D46/42 ,  B01D46/62 ,  F24F8/108

Abstract: An air filter includes a frame portion including an outer frame and an inner frame, the outer frame being a frame body forming an outer contour and formed with an opening, the inner frame being provided within the outer frame and configured to partition the opening of the outer frame into a grid shape, and a filter portion provided on the frame portion to cover sections surrounded by the outer frame and the inner frame, the filter portion being configured to adsorb dust, wherein one side of the frame portion is totally flat.

公开(公告)号：US20240026887A1

公开(公告)日：2024-01-25

申请号：US18043161

申请日：2020-10-27

Applicant: Mitsubishi Electric Corporation

Inventor： Katsuyuki YAMAMOTO ,  Takuya TERAMOTO ,  Naho ADACHI ,  Takashi IKEDA ,  Takanori YOSHIDA

IPC: F04D19/00 ,  F24F1/38 ,  F04D29/52 ,  F04D29/38

CPC classification number: F04D19/002 ,  F24F1/38 ,  F04D29/522 ,  F04D29/38

Abstract: In an axial flow fan, a plurality of blades are rotated about a rotation axis of the plurality of blades to generate an air current. Each of the plurality of blades includes a leading edge portion on a forward side in a rotation direction, and a trailing edge portion on a rearward side in the rotation direction. At the trailing edge portion of the blade, a first recessed portion is formed such that the first recessed portion is recessed toward the leading edge portion. At the leading edge portion of the blade, the second recessed portion is recessed toward the trailing edge portion. Ranges of the first recessed portion and the second recessed portion in a radial direction overlap with each other or completely coincide with each other.