JPS5364083A - Photoelectric smoke detector - Google Patents

Photoelectric smoke detector

Info

Publication number
JPS5364083A
JPS5364083A JP13969476A JP13969476A JPS5364083A JP S5364083 A JPS5364083 A JP S5364083A JP 13969476 A JP13969476 A JP 13969476A JP 13969476 A JP13969476 A JP 13969476A JP S5364083 A JPS5364083 A JP S5364083A
Authority
JP
Japan
Prior art keywords
smoke detector
photoelectric smoke
smoke
light receiving
receiving portion
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.)
Granted
Application number
JP13969476A
Other languages
Japanese (ja)
Other versions
JPS5722157B2 (en
Inventor
Kazunari Morisue
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 JP13969476A priority Critical patent/JPS5364083A/en
Publication of JPS5364083A publication Critical patent/JPS5364083A/en
Publication of JPS5722157B2 publication Critical patent/JPS5722157B2/ja
Granted 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Fire-Detection Mechanisms (AREA)

Abstract

PURPOSE:To detect the scattered light due to smoke particles, while eliminating the obstacles due to a light receiving portion against passage of smoke, to smoothen the introduction and discharge of the smoke by arranging the light receiving portion at the position where the axis of the projecting portion is perpendicular thereto.
JP13969476A 1976-11-19 1976-11-19 Photoelectric smoke detector Granted JPS5364083A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13969476A JPS5364083A (en) 1976-11-19 1976-11-19 Photoelectric smoke detector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13969476A JPS5364083A (en) 1976-11-19 1976-11-19 Photoelectric smoke detector

Publications (2)

Publication Number Publication Date
JPS5364083A true JPS5364083A (en) 1978-06-08
JPS5722157B2 JPS5722157B2 (en) 1982-05-11

Family

ID=15251230

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13969476A Granted JPS5364083A (en) 1976-11-19 1976-11-19 Photoelectric smoke detector

Country Status (1)

Country Link
JP (1) JPS5364083A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58117587U (en) * 1982-02-04 1983-08-11 能美防災工業株式会社 Scattered light smoke detector
JPS63167245A (en) * 1986-12-27 1988-07-11 Hochiki Corp Scattered light type smoke sensor

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6071056U (en) * 1983-10-21 1985-05-20 大阪ヒユーズ株式会社 High voltage cutout fuse
JPH0443954Y2 (en) * 1988-10-21 1992-10-16
JPH0525158Y2 (en) * 1988-10-21 1993-06-25

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3916209A (en) * 1973-07-24 1975-10-28 Electro Signal Lab Vaned baffle for optical smoke detector

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3916209A (en) * 1973-07-24 1975-10-28 Electro Signal Lab Vaned baffle for optical smoke detector

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58117587U (en) * 1982-02-04 1983-08-11 能美防災工業株式会社 Scattered light smoke detector
JPH0330954Y2 (en) * 1982-02-04 1991-06-28
JPS63167245A (en) * 1986-12-27 1988-07-11 Hochiki Corp Scattered light type smoke sensor

Also Published As

Publication number Publication date
JPS5722157B2 (en) 1982-05-11

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