EP 4385381 A1 20240619 - IMPELLER AND CLEANER USING SAME
Title (en)
IMPELLER AND CLEANER USING SAME
Title (de)
LAUFRAD UND REINIGER DAMIT
Title (fr)
ROUE À AUBES ET ASPIRATEUR AU MOYEN DE LADITE ROUE À AUBES
Publication
Application
Priority
- JP 2021177920 A 20211029
- KR 2022013059 W 20220831
Abstract (en)
The disclosed impeller may be positioned in an air passage and suction and discharge air while rotating. The impeller may include a boss portion fixed to a shaft of a motor, a base portion which is connected to the boss portion and has a diameter that increases gradually from an intake side of the air passage toward a discharge side of the air passage, and a plurality of blades arranged radially on the base portion and configured to generate a suction force in the intake side of the air passage. Each of the plurality of blades may include a wind cutting edge that is close to the boss portion and a wind sending edge that is distant from the boss portion. The wind cutting edge may have a swept-back wing shape. A protruding end of the wind cutting edge may be positioned closer to the intake side than a proximal end of the wind cutting edge with respect to the air passage.
IPC 8 full level
A47L 9/22 (2006.01); F04D 25/06 (2006.01); F04D 29/26 (2006.01); F04D 29/28 (2006.01); F04D 29/30 (2006.01); F04D 29/40 (2006.01); F04D 29/42 (2006.01); F04D 29/44 (2006.01)
CPC (source: EP)
A47L 9/22 (2013.01); F04D 25/06 (2013.01); F04D 29/26 (2013.01); F04D 29/28 (2013.01); F04D 29/30 (2013.01); F04D 29/40 (2013.01); F04D 29/42 (2013.01); F04D 29/44 (2013.01)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
Designated validation state (EPC)
KH MA MD TN
DOCDB simple family (publication)
EP 4385381 A1 20240619; JP 2023067008 A 20230516; WO 2023075116 A1 20230504
DOCDB simple family (application)
EP 22887320 A 20220831; JP 2021177920 A 20211029; KR 2022013059 W 20220831