IMPELLER, MULTI-BLADE BLOWER, AND AIR-CONDITIONING DEVICE

Title:

IMPELLER, MULTI-BLADE BLOWER, AND AIR-CONDITIONING DEVICE

Document Type and Number:

WIPO Patent Application WO/2021/186676

Kind Code:

A1

Abstract:

An impeller (10) connected to a motor having a drive shaft. The impeller is provided with a main plate (11) having a boss part (11b) forming a shaft hole (11b1) into which the drive shaft is inserted, an annular side plate (13) disposed facing the main plate, and a plurality of blades (12) connected to the main plate and the side plate and arranged in a circumferential direction around the rotation shaft of the main plate. The main plate has a first surface part (11a) on which the plurality of blades are provided, a second surface part (11c) provided in a region between the boss part and the first surface part and formed in a recessed shape in the axial direction of the rotation shaft with respect to the first surface part, and a plurality of protruding parts (20) provided on the second surface part and extending in the axial direction.

Inventors:

TERAMOTO TAKUYA (JP)
HAYASHI HIROYASU (JP)
HORIE RYO (JP)
YAMAGUCHI TAKASHI (JP)
NAGANO TOMOHIRO (JP)
MICHIKAMI KAZUYA (JP)
YAMATANI TAKAHIRO (JP)
TSUTSUMI HIROSHI (JP)

Application Number:

PCT/JP2020/012324

Publication Date:

September 23, 2021

Filing Date:

March 19, 2020

Export Citation:

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Assignee:

MITSUBISHI ELECTRIC CORP (JP)

International Classes:

F04D29/28

Foreign References:

JPS53116804U	1978-09-18
JP2006125229A	2006-05-18
JPS5996397U	1984-06-29
JP2000240590A	2000-09-05
JPS5996397U	1984-06-29

Other References: