EP 3421891 A1 20190102 - COOKER HOOD
Title (en)
COOKER HOOD
Title (de)
KÜCHENHAUBE
Title (fr)
HOTTE DE CUISINIÈRE
Publication
Application
Priority
CN 201710504580 A 20170627
Abstract (en)
A cooker hood 1 is provided, including: a housing (30); a fan (11) mounted in the housing (30), where the fan (11) includes an air intake vent (11a) and an air exhaust vent (11b); and further including: an air guide pipe (12) mounted in the housing (30), where the air guide pipe (12) includes an air intake vent (12a) and an air exhaust vent (12b), and the air exhaust vent (12b) of the air guide pipe is connected to the air intake vent (11a) of the fan; and a pipe wall of the air guide pipe (12) is provided with acoustic attenuation micro holes. Noise generated when the cooker hood 1 runs leaks out of the acoustic attenuation micro holes on the air guide pipe (12) when passing through the air guide pipe (12), and the noise is reflected in space between the pipe wall of the air guide pipe (12) and the housing (30) back and forth for a plurality of times and is reduced after being reflected for the plurality of times, thereby achieving an effect of reducing the noise of the cooker hood.
IPC 8 full level
F24C 15/20 (2006.01); F24F 13/24 (2006.01)
CPC (source: CN EP)
F24C 15/20 (2013.01 - CN EP)
Citation (search report)
- [XY] CN 201925993 U 20110810 - NINGBO FOTILE KITCHENWARE CO
- [X] CN 201242205 Y 20090520 - QINGTANG YUAN [CN]
- [XP] WO 2018069813 A1 20180419 - ELICA SPA [IT]
- [Y] CN 101457946 A 20090617 - NINGBO FOTILE KITCHENWARE CO [CN]
- [A] US 3364664 A 19680123 - DOANE DE WITT H
- [A] WO 2008090080 A1 20080731 - ROBLIN SAS [FR], et al
- [A] WO 2015029403 A1 20150305 - PANASONIC IP MAN CO LTD [JP]
- [A] US 9121174 B1 20150901 - CHEN HSIN-CHANG [TW]
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
DOCDB simple family (publication)
EP 3421891 A1 20190102; EP 3421891 B1 20210127; CN 109140547 A 20190104
DOCDB simple family (application)
EP 18176223 A 20180606; CN 201710504580 A 20170627