EP0299410A2 - Détecteur optique de fumée - Google Patents

Détecteur optique de fumée Download PDF

Info

Publication number
EP0299410A2
EP0299410A2 EP88111059A EP88111059A EP0299410A2 EP 0299410 A2 EP0299410 A2 EP 0299410A2 EP 88111059 A EP88111059 A EP 88111059A EP 88111059 A EP88111059 A EP 88111059A EP 0299410 A2 EP0299410 A2 EP 0299410A2
Authority
EP
European Patent Office
Prior art keywords
detector
cap
cup
labyrinth
case
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
EP88111059A
Other languages
German (de)
English (en)
Other versions
EP0299410B1 (fr
EP0299410A3 (en
Inventor
Herbert Dipl.-Ing. Krautwald (Fh)
Werner Dipl.-Ing. Keller (Fh)
Günter Heinzel
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.)
Siemens AG
Original Assignee
Siemens AG
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 Siemens AG filed Critical Siemens AG
Priority to AT88111059T priority Critical patent/ATE74678T1/de
Publication of EP0299410A2 publication Critical patent/EP0299410A2/fr
Publication of EP0299410A3 publication Critical patent/EP0299410A3/de
Application granted granted Critical
Publication of EP0299410B1 publication Critical patent/EP0299410B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • 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

Definitions

  • the invention relates to an optical smoke detector, which is essentially rotationally symmetrical, with a detector holder on which a detector cup is arranged and mechanically connected via three support arms and electrically via three contact springs, and with a cup cap and a labyrinth cap, a circuit board in the and a lower and an upper photo carrier on the detector cup, and a labyrinth above the photo carriers are arranged.
  • Optical smoke detectors of this type are generally known.
  • the detector cup has a relatively small diameter compared to the diameter of the lower photo carrier.
  • the circuit board for accommodating the electrical components is also correspondingly small. Since in fire detection technology for early fire detection, the detectors are themselves partly designed to be more intelligent and partly equipped with more electronics for the transmission of detection signals to the control center, it is necessary to accommodate additional electronic components in the detector.
  • the object of the invention is therefore to design the detector and in particular the detector cup so that a circuit board with a much larger area than before can be arranged in the detector cup without having to change the external dimensions of the detector, the labyrinth and the detector cover.
  • the rigid contact bracket of the detector holder With the new design of the detector, in particular the three free-standing support arms, it is possible for the rigid contact bracket of the detector holder to be able to immerse without hindrance when it is locked. Furthermore, this design of the interface between the detector detection and the detector base achieves an area gain of approximately 30% for the printed circuit board.
  • the support arms have a hollow profile, which has the advantage that the support arms are distortion-proof and have sufficient stability so that the required stability in the event of impact and shock is ensured for the detector in the detector holder.
  • a further advantage is given by the fact that the previous labyrinth cap and the previous cup cap are designed in one piece as a common detector cap, which has a higher impact and shock resistance due to the molded-on latching tabs, as well as quick assembly thanks to the triple lock.
  • the smoke detector is attached to the ceiling.
  • a detector 5 is mounted on the ceiling in a known manner and configuration.
  • the detector cup 6 is inserted into the detector holder and mechanically locked (1), the electrical contacts (19) also being produced.
  • the detector cup 6 has three support arms 1 which are self-supporting and are provided with a hollow profile.
  • the detector cup 6 has a via the support arms 1 and the contact springs 19 of the detector cup 6 located in this area. This broadening of the detector cup diameter allows the use of a larger-area printed circuit board 3, which is connected on the one hand with contact pins (13) to the contacts 19, which is not shown here in the FIG., And on the other hand is connected to a trimming resistor 15 via contact pins 13.
  • the recess 14 is arranged in the bottom of the detector cup 6 and corresponding contact towers 12, in which the contact pins 13 are guided.
  • the recess 14 is open to the outside, so that after the installation of the detector cup 6 with the circuit board 3, the photo carriers 2 and 10 and the labyrinth 16 and potting (9) of the detectors can still be adjusted by a corresponding adjustment resistor 15 to the Contact pins 13 is soldered.
  • a shield plate 11 only protects those components on the printed circuit board 3 which must be shielded, this shield plate 11 also being assembled and soldered when it is fitted. This has the advantage that there is no costly vaporization and contacting of the plastic cup.
  • the lower photo carrier 2 is arranged, on which the upper photo carrier 10 is non-positively arranged via pins 21, so that the previous additional fastening screw is omitted.
  • the labyrinth 16 is located above the photo carriers. With the potting (potting compound 9), the detector cup is sealed in a water-tight and air-tight manner, so that good corrosion protection of the electrical components is ensured.
  • the already mentioned contact towers 12 are provided with the contact pins 13, for example 7, the Be after the casting close tightly so that a renewed sealing is no longer necessary.
  • the lower and upper photo carriers 2 and 10 are held with the detector cap, which is formed in one piece from the cup cap 4 and the labyrinth cap 17.
  • the detector cap in the area of the lower photo carrier has three integrally formed locking lugs 20 and at least three molded-on latching tabs 7, which inevitably latch in latching cams 8 when the detector cap is put on and thus hold the photo carrier 2 firmly on the detector cup 6 without additional fastening parts.
  • the detector cap has air inlet openings 18.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Fire-Detection Mechanisms (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
EP88111059A 1987-07-14 1988-07-11 Détecteur optique de fumée Expired - Lifetime EP0299410B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88111059T ATE74678T1 (de) 1987-07-14 1988-07-11 Optischer rauchmelder.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3723273 1987-07-14
DE3723273 1987-07-14

Publications (3)

Publication Number Publication Date
EP0299410A2 true EP0299410A2 (fr) 1989-01-18
EP0299410A3 EP0299410A3 (en) 1989-04-26
EP0299410B1 EP0299410B1 (fr) 1992-04-08

Family

ID=6331557

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88111059A Expired - Lifetime EP0299410B1 (fr) 1987-07-14 1988-07-11 Détecteur optique de fumée

Country Status (3)

Country Link
EP (1) EP0299410B1 (fr)
AT (1) ATE74678T1 (fr)
DE (1) DE3869857D1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU642361B1 (en) * 1992-04-25 1993-10-14 Nohmi Bosai Ltd Ionization type smoke detector
CN107918997A (zh) * 2017-12-29 2018-04-17 郑州正之航电子科技有限公司 一种便于安装的智能烟雾报警装置
CN114419827A (zh) * 2022-03-21 2022-04-29 山东三晶照明科技有限公司 直流供电报警装置

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10063482B4 (de) * 2000-12-06 2007-03-15 Phoenix Contact Gmbh & Co. Kg Elektrische Klemme und Baueinheit aus einem elektronischen Gerät und einer in einem ortsfesten Gehäuse angeordneten elektrischen Klemme
DE102015004458B4 (de) 2014-06-26 2016-05-12 Elmos Semiconductor Aktiengesellschaft Vorrichtung und Verfahren für einen klassifizierenden, rauchkammerlosen Luftzustandssensor zur Prognostizierung eines folgenden Betriebszustands
DE102014019172B4 (de) 2014-12-17 2023-12-07 Elmos Semiconductor Se Vorrichtung und Verfahren zur Unterscheidung von festen Objekten, Kochdunst und Rauch mit einem kompensierenden optischen Messsystem
DE102014019773B4 (de) 2014-12-17 2023-12-07 Elmos Semiconductor Se Vorrichtung und Verfahren zur Unterscheidung von festen Objekten, Kochdunst und Rauch mittels des Displays eines Mobiltelefons

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0014251A1 (fr) * 1979-01-23 1980-08-20 Cerberus Ag Dispositif d'accouplement pour avertisseur d'incendie
US4396840A (en) * 1980-10-01 1983-08-02 Matsushita Electric Works, Ltd. Ionization type smoke sensing device
GB2137390A (en) * 1983-03-07 1984-10-03 Emhart Ind Sensor assembly
EP0142827A1 (fr) * 1983-11-18 1985-05-29 Siemens Aktiengesellschaft Détecteur automatique de fumée et procédé pour leur fabrication
EP0217100A2 (fr) * 1985-08-24 1987-04-08 Nohmi Bosai Ltd. Détecteur de fumée du type à ionisation

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0014251A1 (fr) * 1979-01-23 1980-08-20 Cerberus Ag Dispositif d'accouplement pour avertisseur d'incendie
US4396840A (en) * 1980-10-01 1983-08-02 Matsushita Electric Works, Ltd. Ionization type smoke sensing device
GB2137390A (en) * 1983-03-07 1984-10-03 Emhart Ind Sensor assembly
EP0142827A1 (fr) * 1983-11-18 1985-05-29 Siemens Aktiengesellschaft Détecteur automatique de fumée et procédé pour leur fabrication
EP0217100A2 (fr) * 1985-08-24 1987-04-08 Nohmi Bosai Ltd. Détecteur de fumée du type à ionisation

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU642361B1 (en) * 1992-04-25 1993-10-14 Nohmi Bosai Ltd Ionization type smoke detector
CN107918997A (zh) * 2017-12-29 2018-04-17 郑州正之航电子科技有限公司 一种便于安装的智能烟雾报警装置
CN114419827A (zh) * 2022-03-21 2022-04-29 山东三晶照明科技有限公司 直流供电报警装置
CN114419827B (zh) * 2022-03-21 2022-07-12 山东三晶照明科技有限公司 直流供电报警装置

Also Published As

Publication number Publication date
ATE74678T1 (de) 1992-04-15
EP0299410B1 (fr) 1992-04-08
EP0299410A3 (en) 1989-04-26
DE3869857D1 (de) 1992-05-14

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