EP 4141833 A1 20230301 - DETECTOR
Title (en)
DETECTOR
Title (de)
DETEKTOR
Title (fr)
DÉTECTEUR
Publication
Application
Priority
- JP 2020075695 A 20200421
- JP 2021016125 W 20210421
Abstract (en)
An object of the present disclosure is to reduce the chance that erroneous detection occurs. A sensor 1 includes a smoke detection chamber 4, an opening 510 and a dividing portion Z1. The smoke detection chamber 4 has an inlet port 40 through which smoke flows into the smoke detection chamber 4. The opening 510 connects an external space SP2 and a space SP1 surrounding the smoke detection chamber 4. The dividing portion Z1 divides the gas flow channel 6 such that a first ratio is made higher than a second ratio. The first ratio is a ratio of an amount of smoke reaching the inlet port 40 with respect to a first inflow of smoke flowing into the gas flow channel 6 through the opening 510. The second ratio is a ratio of an amount of steam reaching the inlet port 40 with respect to a second inflow of steam flowing into the gas flow channel 6 through the opening 510.
IPC 8 full level
G08B 17/00 (2006.01); G08B 17/103 (2006.01); G08B 17/107 (2006.01)
CPC (source: EP)
G08B 17/10 (2013.01); G08B 17/107 (2013.01); G08B 17/113 (2013.01); G08B 17/06 (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 4141833 A1 20230301; EP 4141833 A4 20231011; JP 7394360 B2 20231208; JP WO2021215460 A1 20211028; WO 2021215460 A1 20211028
DOCDB simple family (application)
EP 21792609 A 20210421; JP 2021016125 W 20210421; JP 2022517064 A 20210421