JPS5389787A - Light scattering type smoke detector - Google Patents

Light scattering type smoke detector

Info

Publication number
JPS5389787A
JPS5389787A JP513377A JP513377A JPS5389787A JP S5389787 A JPS5389787 A JP S5389787A JP 513377 A JP513377 A JP 513377A JP 513377 A JP513377 A JP 513377A JP S5389787 A JPS5389787 A JP S5389787A
Authority
JP
Japan
Prior art keywords
light scattering
smoke detector
scattering type
type smoke
smoke sensing
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
JP513377A
Other languages
Japanese (ja)
Inventor
Shuji Kamaya
Yoshihisa Nakakamo
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Electric Works Co Ltd
Original Assignee
Matsushita Electric Works Ltd
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 Matsushita Electric Works Ltd filed Critical Matsushita Electric Works Ltd
Priority to JP513377A priority Critical patent/JPS5389787A/en
Publication of JPS5389787A publication Critical patent/JPS5389787A/en
Pending legal-status Critical Current

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

Abstract

PURPOSE:To prevent the incidence of light to a smoke sensing part and prevent malfunctions by accommodating the smoke sensing part to the central part of a housing and parall providing waveform partiton walls formed with undulations on their surfaces radially on the outside of the smoke sensing part.
JP513377A 1977-01-19 1977-01-19 Light scattering type smoke detector Pending JPS5389787A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP513377A JPS5389787A (en) 1977-01-19 1977-01-19 Light scattering type smoke detector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP513377A JPS5389787A (en) 1977-01-19 1977-01-19 Light scattering type smoke detector

Publications (1)

Publication Number Publication Date
JPS5389787A true JPS5389787A (en) 1978-08-07

Family

ID=11602804

Family Applications (1)

Application Number Title Priority Date Filing Date
JP513377A Pending JPS5389787A (en) 1977-01-19 1977-01-19 Light scattering type smoke detector

Country Status (1)

Country Link
JP (1) JPS5389787A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017073582A1 (en) * 2015-10-28 2017-05-04 ホーチキ株式会社 Equipment-mounting structure, mounting plate for same, alarm unit, fire alarm unit, alarm device, and method for manufacturing same

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017073582A1 (en) * 2015-10-28 2017-05-04 ホーチキ株式会社 Equipment-mounting structure, mounting plate for same, alarm unit, fire alarm unit, alarm device, and method for manufacturing same
JPWO2017073582A1 (en) * 2015-10-28 2018-08-30 ホーチキ株式会社 Equipment mounting structure and its mounting plate, alarm device, fire alarm device, alarm device and manufacturing method thereof
TWI746472B (en) * 2015-10-28 2021-11-21 日商報知希股份有限公司 Apparatus installation structure and installation board therefor, alarm unit, fire alarm unit, alarm device and method for manufacturing thereof

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