FI91195B - Fotoelektrisk rökdetektor - Google Patents

Fotoelektrisk rökdetektor Download PDF

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Publication number
FI91195B
FI91195B FI881236A FI881236A FI91195B FI 91195 B FI91195 B FI 91195B FI 881236 A FI881236 A FI 881236A FI 881236 A FI881236 A FI 881236A FI 91195 B FI91195 B FI 91195B
Authority
FI
Finland
Prior art keywords
smoke
wall
base plate
wall elements
insect net
Prior art date
Application number
FI881236A
Other languages
English (en)
Finnish (fi)
Other versions
FI881236A0 (sv
FI91195C (sv
FI881236A (sv
Inventor
Hironobu Kawai
Hiroshi Sawa
Original Assignee
Hochiki Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hochiki Co filed Critical Hochiki Co
Publication of FI881236A0 publication Critical patent/FI881236A0/sv
Publication of FI881236A publication Critical patent/FI881236A/sv
Application granted granted Critical
Publication of FI91195B publication Critical patent/FI91195B/sv
Publication of FI91195C publication Critical patent/FI91195C/sv

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B17/00—Fire alarms; Alarms responsive to explosion
    • G08B17/10—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means
    • G08B17/103—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means using a light emitting and receiving device
    • G08B17/107—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means using a light emitting and receiving device for detecting light-scattering due to smoke
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B17/00—Fire alarms; Alarms responsive to explosion
    • G08B17/10—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means
    • G08B17/11—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means using an ionisation chamber for detecting smoke or gas
    • G08B17/113—Constructional details

Claims (4)

1. Fotoelektrisk rökdetektor med ett rökdetekteringsarran-gemang, som omfattar ett ljusemitterande element (12) och ett ljusdetekterande element (13) samt en rökdetekterande 5 enhet (2) , pä vilken nämnda rökdetekteringsarrangemang mon- terats, varvid den nämnda rökdetekterande enheten omfattar: en basplatta (8) fast med rökdetekteringsarrangemanget; en omgivande vägg (9) med sddan form, att rök tillätes koirana in frän utsidan men väsentligen hindrar ljus att intränga frän 10 utsidan; kännetecknad av att nämnda omgivande vägg (9) utgöres av ett flertal väggelement (9a), varvid varje vägg-element anordnats väsentligen regelbundet bilda den yttre periferin av den omgivande väggen, varvid väggelementen har 15 formgivits en helhet med basplattan (8) sä, att de sträcker sig nedät frän basplattan; och att den rökdetekterande enheten (2) ytterligare innehdller ett insektnät (5), som fästs tili väggelementens (9a) yttre ytor och formgivits en helhet med väggelementen under väggelemen-20 tens gjutningsprocess sä, att nätet passar pä den yttre periferin av den omgivande väggen.
2. Fotoelektrisk rökdetektor enligt patentkrav 1, k ä n -netecknad av att de yttre ytorna av väggelementen 25 (9a) har bildats under gjutningsprocessen av väggelementens material, som intränger in i insektnätets (5) öppningar.
3. Fotoelektrisk rökdetektor enligt patentkrav 1, k ä n -netecknad av att insektnätet (5) är fäst hos sin 30 övre ända vid basplattan (8).
4. Fotoelektrisk rökdetektor enligt patentkrav 3, k ä n - netecknad av att insektnätet (5) uppvisar en övre periferiändkant, som är nedsänkt nedanför den nedre ytan av 35 basplattan. Il
FI881236A 1987-03-27 1988-03-15 Fotoelektrisk rökdetektor FI91195C (sv)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP62073158A JPS63239592A (ja) 1987-03-27 1987-03-27 光電式煙感知器
JP7315887 1987-03-27

Publications (4)

Publication Number Publication Date
FI881236A0 FI881236A0 (sv) 1988-03-15
FI881236A FI881236A (sv) 1988-09-28
FI91195B true FI91195B (sv) 1994-02-15
FI91195C FI91195C (sv) 1994-05-25

Family

ID=13510087

Family Applications (1)

Application Number Title Priority Date Filing Date
FI881236A FI91195C (sv) 1987-03-27 1988-03-15 Fotoelektrisk rökdetektor

Country Status (10)

Country Link
US (1) US4851819A (sv)
JP (1) JPS63239592A (sv)
AT (1) AT399594B (sv)
AU (1) AU606396B2 (sv)
CH (1) CH675170A5 (sv)
DE (1) DE3809738C2 (sv)
FI (1) FI91195C (sv)
FR (1) FR2613072B1 (sv)
GB (1) GB2203238B (sv)
NO (1) NO172209C (sv)

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EP0503167B1 (en) * 1991-03-12 1995-06-14 Matsushita Electric Works, Ltd. A method for testing smoke sensor and a smoke sensor having a function of executing the test
JP2691951B2 (ja) * 1991-03-29 1997-12-17 ホーチキ 株式会社 光電式煙感知器
DE69317147T2 (de) * 1992-04-25 1998-10-01 Nohmi Bosai Ltd Feuermelder
DE4328671B4 (de) * 1992-08-28 2005-02-17 Hochiki K.K. Streulichtrauchmelder
JP2648560B2 (ja) * 1993-04-09 1997-09-03 ホーチキ株式会社 散乱光式煙感知器
US5400014A (en) * 1993-07-12 1995-03-21 Detection Systems, Inc. Smoke detector with dark chamber
US6501810B1 (en) 1998-10-13 2002-12-31 Agere Systems Inc. Fast frame synchronization
US5546074A (en) * 1993-08-19 1996-08-13 Sentrol, Inc. Smoke detector system with self-diagnostic capabilities and replaceable smoke intake canopy
GB9417484D0 (en) * 1993-09-07 1994-10-19 Hochiki Co Light scattering type smoke sensor
JP2787001B2 (ja) * 1994-12-12 1998-08-13 ホーチキ株式会社 光電式煙感知器
DE19512126C1 (de) * 1995-04-04 1996-09-05 Hekatron Gmbh Vorrichtung zum Detektieren eines Gases oder Aerosols
JPH09270085A (ja) * 1996-04-01 1997-10-14 Hamamatsu Photonics Kk 発煙検知装置
US5751218A (en) * 1996-07-19 1998-05-12 Simplex Time Recorder Company Smoke detector housing for improved smoke collection
US6057774A (en) * 1999-01-21 2000-05-02 Brk Brands, Inc. Smoke alarm with anti-dust screen
JP3672777B2 (ja) * 1999-11-01 2005-07-20 ホーチキ株式会社 煙感知器及び防虫網
JP3370032B2 (ja) * 1999-11-01 2003-01-27 ホーチキ株式会社 光電式煙感知器及び検煙部アッセンブリィ
US6225910B1 (en) 1999-12-08 2001-05-01 Gentex Corporation Smoke detector
US6876305B2 (en) * 1999-12-08 2005-04-05 Gentex Corporation Compact particle sensor
DE10135762A1 (de) * 2001-07-23 2003-02-13 Luxmate Controls Gmbh Dornbirn Raumsensor mit Montageadapter
US6636154B2 (en) * 2001-10-17 2003-10-21 Thomas B. Brundage Air condition sensor housing with integral labyrinth
DE102004029242B4 (de) * 2004-06-17 2008-04-03 Job Lizenz Gmbh & Co Kg Gefahrenmelder
JP2006195652A (ja) * 2005-01-12 2006-07-27 Nittan Co Ltd 火災感知器
WO2006112085A1 (ja) * 2005-03-31 2006-10-26 Fenwal Controls Of Japan, Ltd. 光電式煙感知器
US7616126B2 (en) * 2006-07-18 2009-11-10 Gentex Corporation Optical particle detectors
US9255882B2 (en) * 2011-06-01 2016-02-09 Scanco Holding AG Optical imaging system
US9459208B2 (en) * 2013-10-04 2016-10-04 Tyco Fire & Security Gmbh Duct detector with remote airflow test capability
WO2016009460A1 (ja) * 2014-07-14 2016-01-21 日本フェンオール株式会社 光電式煙感知器
GB201421557D0 (en) 2014-12-04 2015-01-21 Sleep Safe Systems Ltd Fire mist apparatus and system and method of use thereof
EP3576063A3 (de) * 2015-08-13 2020-01-29 Siemens Schweiz AG Rauchdetektionseinheit mit leuchtdiode und photoempfänger, und mit einem in der leuchtdiode angeordneten led-chip und photosensor zur bestimmung eines alterungsgrads und/oder eines lichtstromkompensationswerts, sowie eine leuchtdiode
WO2017033499A1 (ja) 2015-08-25 2017-03-02 日本フェンオール株式会社 光電式煙感知器
EP3803819B1 (en) * 2018-05-31 2024-05-01 Autronica Fire & Security AS Printed circuit board for smoke detector
CN112368752B (zh) * 2018-06-25 2023-01-13 报知希株式会社 火灾探测装置
US11074796B2 (en) 2019-04-01 2021-07-27 Carrier Corporation Photoelectric smoke detectors
DE102021213967A1 (de) 2021-12-08 2023-06-15 Hekatron Vertriebs Gmbh Gefahrenmelder mit Insektengitter

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Also Published As

Publication number Publication date
AU606396B2 (en) 1991-02-07
ATA75988A (de) 1994-10-15
JPH0578879B2 (sv) 1993-10-29
GB2203238B (en) 1991-03-20
GB8806382D0 (en) 1988-04-13
NO881320L (no) 1988-09-28
AT399594B (de) 1995-06-26
US4851819A (en) 1989-07-25
FI881236A0 (sv) 1988-03-15
NO172209C (no) 1993-06-16
DE3809738C2 (de) 1999-04-15
NO881320D0 (no) 1988-03-24
FI91195C (sv) 1994-05-25
FI881236A (sv) 1988-09-28
FR2613072A1 (fr) 1988-09-30
AU1325688A (en) 1988-09-29
NO172209B (no) 1993-03-08
JPS63239592A (ja) 1988-10-05
FR2613072B1 (fr) 1992-12-31
GB2203238A (en) 1988-10-12
DE3809738A1 (de) 1988-10-06
CH675170A5 (sv) 1990-08-31

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Owner name: HOCHIKI KABUSHIKI KAISHA