EP2076893A2 - Device for the detection of smoke in a room - Google Patents

Device for the detection of smoke in a room

Info

Publication number
EP2076893A2
EP2076893A2 EP07818610A EP07818610A EP2076893A2 EP 2076893 A2 EP2076893 A2 EP 2076893A2 EP 07818610 A EP07818610 A EP 07818610A EP 07818610 A EP07818610 A EP 07818610A EP 2076893 A2 EP2076893 A2 EP 2076893A2
Authority
EP
European Patent Office
Prior art keywords
cover
smoke
radiation
receiver
transmitter
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
EP07818610A
Other languages
German (de)
French (fr)
Other versions
EP2076893B1 (en
Inventor
Rainer Müller
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.)
Schako KG
Original Assignee
Schako Klima Luft Ferdinand Schad KG
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 Schako Klima Luft Ferdinand Schad KG filed Critical Schako Klima Luft Ferdinand Schad KG
Priority to SI200730918T priority Critical patent/SI2076893T1/en
Priority to PL07818610T priority patent/PL2076893T3/en
Publication of EP2076893A2 publication Critical patent/EP2076893A2/en
Application granted granted Critical
Publication of EP2076893B1 publication Critical patent/EP2076893B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • 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

Definitions

  • the invention relates to a device for detecting smoke in a room with a transmitter for emitting a radiation which can be reflected by the smoke and a receiver which detects the radiation reflected by the smoke, the transmitter and / or receiver being provided with a radiation-permeable cover.
  • Smoke detectors are known in a variety of forms and designs and on the
  • Object of the present invention is to prevent destruction of the smoke detector, in particular by vandalism. At the same time the operation of the smoke detector and its handling should not be affected.
  • the cover consists of an impact-resistant material.
  • steel As a cover offers itself above all a steel plate, are formed in the openings for the passage of the radiation.
  • steel is very impact-resistant and resists shocks, especially when applied from below a blanket, as in this case a force of the blow is limited.
  • the invention should be no limits.
  • the cover round, square, oval od. Like. Be configured.
  • the cover disk known from EP 1 224 641 B1 is arranged between cover and transmitter or receiver. It facilitates the assembly of the smoke detector with the cover and also prevents, for example, can be pushed through the openings with a wrench and possibly sender and / or receiver are damaged.
  • Figure 1 is a side view of an inventive device for detecting smoke in a room
  • FIG. 2 shows a bottom view of the device according to FIG. 1.
  • a transmitter 1, which is not shown in further detail, for radiation and a receiver likewise not shown in greater detail for a radiation reflected by a smoke are located in a housing 1.
  • a smoke detector can be found in EP 1 224 641 B1, for which reason a detailed description is omitted here and reference is made to EP 1 224 641 B1.
  • the housing 1 is essentially closed by a transparent cover 2. According to the invention, this cover 3 is preceded by a cover 3, which according to FIG. 2 has two openings 4 and 5.
  • the opening 5 allows a reflected radiation to enter the receiver also mentioned above in the housing 1, which is reflected in particular by a smoke in the room.
  • the cover 3 consists of an impact-resistant material, in particular of steel.
  • an impact-resistant material in particular of steel.
  • another appropriate material such as ceramic, is possible.
  • the thickness of the steel plate is preferably about 3 mm.
  • the housing 1, in which all elements of the above-mentioned smoke detector are integrated, is connected to the transparent cover 2. This unit is then placed on the cover 3 and centered so that the radiation from the transmitter into the room at a favorable or desired angle through the opening 4 can escape. Likewise, the receiver in the housing 1 is adjusted so that it can receive a radiation reflected by the smoke in the room.
  • the entire unit is then od in a ceiling. Like. Installed so that the cover 3 is flush with the ceiling flush. As a result, it is almost impossible to destroy the smoke detector, so that such a smoke detector can be found mainly in vulnerable to vandalism areas, such as in prisons, application.

Abstract

The detecting device has a transmitter for transmitting radiation that is reflected by the smoke and a receiver that detects the radiation reflected by the smoke. A radiation transparent cover is placed over the transmitter or receiver and is made up of an unbreakable material whereby the cover is a steel plate.

Description

Vorrichtung zur Erkennung von Rauch in einem Raum Device for detecting smoke in a room
Die Erfindung betrifft eine Vorrichtung zur Erkennung von Rauch in einem Raum mit einem Sender zum Aussenden einer von dem Rauch reflektierbaren Strahlung und einem die vom Rauch reflektierte Strahlung erkennenden Empfänger, wobei dem Sender und/oder Empfänger eine strahlungsdurchlässige Abdeckung vorgesetzt ist.The invention relates to a device for detecting smoke in a room with a transmitter for emitting a radiation which can be reflected by the smoke and a receiver which detects the radiation reflected by the smoke, the transmitter and / or receiver being provided with a radiation-permeable cover.
Stand der TechnikState of the art
Rauchmelder sind in vielfältiger Form und Ausführung bekannt und auf demSmoke detectors are known in a variety of forms and designs and on the
Markt. Die meisten der bekannten Rauchmelder arbeiten nach dem sogenannten Streulichtverfahren, welches voraussetzt, dass der Rauch mit demMarket. Most of the known smoke detectors work according to the so-called scattered light method, which assumes that the smoke with the
Sensor in Kontakt kommt. Die Folge davon ist, dass diese Rauchmelder aus der Decke herausragen müssen, sodass sie Angriffen von aussen ausgesetzt sind, die ihre Funktionsweise beeinträchtigen oder zerstören können.Sensor comes into contact. The consequence of this is that these smoke detectors are off must protrude from the ceiling so that they are exposed to attacks from the outside, which can affect or destroy their functioning.
In der EP 1 224 641 B1 wird ein Rauchmelder beschrieben, der deckenbündig eingebaut werden kann und bei dem durch einen Selbsttest erkannt wird, ob beispielsweise eine Verschmutzung einer vorgesetzten Abdeckscheibe gegeben ist. Diese Abdeckscheibe ist jedoch nicht geeignet, Angriffen zu widerstehen, sodass auch hier die Möglichkeit der Zerstörung und Beeinträchtigung des Rauchmelders gegeben ist.In EP 1 224 641 B1, a smoke detector is described, which can be installed flush with the ceiling and in which it is detected by a self-test, for example, whether contamination of a superior cover is given. However, this cover is not suitable to resist attacks, so here is the possibility of destruction and impairment of the smoke detector is given.
Aufgabetask
Aufgabe der vorliegenden Erfindung ist es, einer Zerstörung des Rauchmelders, insbesondere durch Vandalismus, vorzubeugen. Gleichzeitig soll die Funktionsweise des Rauchmelders und seine Handhabung nicht beeinträchtigt sein.Object of the present invention is to prevent destruction of the smoke detector, in particular by vandalism. At the same time the operation of the smoke detector and its handling should not be affected.
Lösung der AufgabeSolution of the task
Zur Lösung der Aufgabe führt, dass die Abdeckung aus einem schlagfesten Werkstoff besteht.To solve the problem results in that the cover consists of an impact-resistant material.
Das bedeutet, dass der eigentliche Rauchmelder durch diese Abdeckung gegen Vandalismus geschützt ist, weshalb er vor allem für solche Gebäuden gedacht ist, welche möglicherweise Vandalismus ausgesetzt sind. Hierbei wird in erster Linie an ein Gefängnis oder an Schulen gedacht, da in derartigen Gebäuden die Gefahr von Beschädigungen erfahrungsgemäss sehr hoch ist.This means that the actual smoke detector is protected by this cover against vandalism, which is why it is especially intended for those buildings that may be exposed to vandalism. This is primarily intended to a prison or schools, since in such buildings, the risk of damage is experience very high.
Als Abdeckung bietet sich vor allem eine Stahlplatte an, in die Öffnungen zum Durchlassen der Strahlungen eingeformt sind. Stahl ist als Werkstoff sehr schlagfest und widersteht Schlägen, vor allem wenn diese von unten gegen eine Decke gerichtet sind, da in diesem Fall eine Wucht des Schlages begrenzt ist.As a cover offers itself above all a steel plate, are formed in the openings for the passage of the radiation. As a material, steel is very impact-resistant and resists shocks, especially when applied from below a blanket, as in this case a force of the blow is limited.
Wichtig ist auch, dass die Abdeckung deckenbündig eingebaut ist. Dieser deckenbündige Einbau bedeutet, dass kein Angriff von der Seite her auf die Abdeckung erfolgen kann. Auf diese Weise ist es nicht möglich, die Abdeckung mit einem Werkzeug aus der Decke herauszuhebein, ohne die Decke selbst zu zerstören. Der Angriff kann nur von unten kommen und ist damit gegen die flache Seite der Abdeckung gerichtet, die diesem Angriff widersteht.It is also important that the cover is installed flush with the ceiling. This ceiling-flush installation means that no attack from the side can be made on the cover. In this way it is not possible to lift the cover out of the ceiling with a tool without destroying the ceiling itself. The attack can only come from below and is thus directed against the flat side of the cover, which resists this attack.
Hinsichtlich der Ausgestaltung und der Form dieser Abdeckung soll der Erfindung keinerlei Grenzen gesetzt sein. So kann die Abdeckung rund, eckig, oval od. dgl. ausgestaltet sein.With regard to the design and the form of this cover, the invention should be no limits. Thus, the cover round, square, oval od. Like. Be configured.
Auch bei der erfindungsgemässen Vorrichtung ist die aus der EP 1 224 641 B1 bekannte Abdeckscheibe zwischen Abdeckung und Sender bzw. Empfänger angeordnet. Sie erleichtert den Zusammenbau des Rauchmelders mit der Abdeckung und verhindert ferner, dass beispielsweise mit einem Schraubenschlüssel durch die Öffnungen hindurch gestossen werden kann und möglicherweise Sender und/oder Empfänger beschädigt werden. Also in the case of the device according to the invention, the cover disk known from EP 1 224 641 B1 is arranged between cover and transmitter or receiver. It facilitates the assembly of the smoke detector with the cover and also prevents, for example, can be pushed through the openings with a wrench and possibly sender and / or receiver are damaged.
Figurenbeschreibungfigure description
Weitere Vorteile, Merkmale und Einzelheiten der Erfindung ergeben sich aus der nachfolgenden Beschreibung bevorzugter Ausführungsbeispiele sowie an Hand der Zeichnung; diese zeigt inFurther advantages, features and details of the invention will become apparent from the following description of preferred embodiments and with reference to the drawing; this shows in
Figur 1 eine Seitenansicht eine erfindungsgemässen Vorrichtung zur Erkennung von Rauch in einem Raum;Figure 1 is a side view of an inventive device for detecting smoke in a room;
Figur 2 eine Unteransicht der Vorrichtung nach Figur 1.FIG. 2 shows a bottom view of the device according to FIG. 1.
Gemäss Figur 1 befindet sich in einem Gehäuse 1 ein nicht näher gezeigter Sender für eine Strahlung sowie ein ebenfalls nicht näher gezeigter Empfänger für eine von einem Rauch reflektierte Strahlung. Eine weitergehende Beschreibung eines derartigen Rauchmelders findet sich in der EP 1 224 641 B1 , weshalb hier auf eine nähere Beschreibung verzichtet und auf die EP 1 224 641 B1 verwiesen wird.According to FIG. 1, a transmitter 1, which is not shown in further detail, for radiation and a receiver likewise not shown in greater detail for a radiation reflected by a smoke are located in a housing 1. A more detailed description of such a smoke detector can be found in EP 1 224 641 B1, for which reason a detailed description is omitted here and reference is made to EP 1 224 641 B1.
Das Gehäuse 1 wird im wesentlichen durch eine transparente Abdeckscheibe 2 verschlossen. Dieser transparenten Abdeckscheibe 2 ist erfindungsgemäss eine Abdeckung 3 vorgesetzt, welche gemäss Figur 2 zwei Öffnungen 4 und 5 aufweist. Die Öffnung 4 lässt beispielsweise eine Strahlung in einen Raum austreten, die von dem oben erwähnten Sender abgegeben wird. Dagegen lässt die Öffnung 5 eine reflektierte Strahlung zu dem ebenfalls oben erwähnten Empfänger in dem Gehäuse 1 eintreten, die insbesondere von einem Rauch in dem Raum reflektiert wird.The housing 1 is essentially closed by a transparent cover 2. According to the invention, this cover 3 is preceded by a cover 3, which according to FIG. 2 has two openings 4 and 5. The opening 4, for example, emits radiation into a space which is emitted by the above-mentioned transmitter. In contrast, the opening 5 allows a reflected radiation to enter the receiver also mentioned above in the housing 1, which is reflected in particular by a smoke in the room.
Erfindungsgemäss besteht die Abdeckung 3 aus einem schlagfesten Werkstoff, insbesondere aus Stahl. Jedoch ist auch die Verwendung eines anderen entsprechenden Werkstoffes, wie beispielsweise Keramik, möglich. Die Dicke der Stahlplatte beträgt bevorzugt ca. 3 mm. Die Funktionsweise der vorliegenden Erfindung ist folgende:According to the invention, the cover 3 consists of an impact-resistant material, in particular of steel. However, the use of another appropriate material, such as ceramic, is possible. The thickness of the steel plate is preferably about 3 mm. The operation of the present invention is as follows:
Das Gehäuse 1 , in welchem alle Elemente des oben erwähnten Rauchmelders integriert sind, wird mit der transparenten Abdeckscheibe 2 verbunden. Diese Einheit wird dann auf die Abdeckung 3 aufgesetzt und so zentriert, dass die Strahlung vom Sender in den Raum in einem günstigen bzw. gewünschten Winkel durch die Öffnung 4 austreten kann. Ebenso wird der Empfänger in dem Gehäuse 1 so justiert, dass er eine vom Rauch in dem Raum reflektierte Strahlung empfangen kann.The housing 1, in which all elements of the above-mentioned smoke detector are integrated, is connected to the transparent cover 2. This unit is then placed on the cover 3 and centered so that the radiation from the transmitter into the room at a favorable or desired angle through the opening 4 can escape. Likewise, the receiver in the housing 1 is adjusted so that it can receive a radiation reflected by the smoke in the room.
Die gesamte Einheit wird dann in einer Decke od. dgl. so eingebaut, dass die Abdeckung 3 mit der Decke deckenbündig abschliesst. Dadurch ist es nahezu ausgeschlossen, den Rauchmelder zu zerstören, sodass ein derartiger Rauchmelder vor allem in durch Vandalismus gefährdeten Bereichen, wie beispielsweise in Gefängnissen, Anwendung finden kann. The entire unit is then od in a ceiling. Like. Installed so that the cover 3 is flush with the ceiling flush. As a result, it is almost impossible to destroy the smoke detector, so that such a smoke detector can be found mainly in vulnerable to vandalism areas, such as in prisons, application.
DR. PETER WEISS, DIPL-ING. A. BRECHT & DIPL-FORSTW. PETRA ARATDR. PETER WEISS, DIPL-ING. A. BRECHT & DIPL-FORSTW. PETRA ARAT
Patentanwälte European Patent AttorneyPatent Attorneys European Patent Attorney
Aktenzeichen: G 1326/PCT Datum:Reference: G 1326 / PCT Date:
BezugszeichenlisteLIST OF REFERENCE NUMBERS

Claims

Patentansprüche claims
1. Vorrichtung zur Erkennung von Rauch in einem Raum, mit einem Sender zum Aussenden einer von dem Rauch reflektierbaren Strahlung und einem die vom Rauch reflektierte Strahlung erkennenden Empfänger, wobei dem Sender und/oder Empfänger eine strahlungsdurchlässige Abdeckung (3) vorgesetzt ist,1. A device for detecting smoke in a room, comprising a transmitter for emitting a radiation which can be reflected by the smoke and a receiver which detects the radiation reflected by the smoke, wherein the transmitter and / or receiver is preceded by a radiation-permeable cover (3),
dadurch gekennzeichnet,characterized,
dass die Abdeckung (3) aus einem schlagfesten Werkstoff besteht.that the cover (3) consists of an impact-resistant material.
2. Vorrichtung nach Anspruch 1 , dadurch gekennzeichnet, dass die Abdeckung (3) eine Stahlplatte ist.2. Apparatus according to claim 1, characterized in that the cover (3) is a steel plate.
3. Vorrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass in die Abdeckung (3) Öffnungen (4, 5) zum Durchlassen der Strahlungen eingeformt sind.3. Apparatus according to claim 1 or 2, characterized in that in the cover (3) openings (4, 5) are formed for transmitting the radiation.
4. Vorrichtung nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass die Abdeckung (3) deckenbündig eingebaut ist.4. Device according to one of claims 1 to 3, characterized in that the cover (3) is installed flush with the ceiling.
5. Vorrichtung nach wenigstens einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass zwischen Abdeckung (3) und Sender bzw. Empfänger noch eine transparente Abdeckscheibe (2) angeordnet ist. 5. Device according to at least one of claims 1 to 4, characterized in that between cover (3) and transmitter or receiver is still a transparent cover (2) is arranged.
EP07818610A 2006-10-09 2007-10-01 Device for the detection of smoke in a room Active EP2076893B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
SI200730918T SI2076893T1 (en) 2006-10-09 2007-10-01 Device for the detection of smoke in a room
PL07818610T PL2076893T3 (en) 2006-10-09 2007-10-01 Device for the detection of smoke in a room

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE202006015553U DE202006015553U1 (en) 2006-10-09 2006-10-09 Detecting device for smoke in room has transmitter for transmitting radiation and receiver that detects radiation whereby radiation transparent cover placed over transmitter or receiver is made up of an unbreakable material
PCT/EP2007/008530 WO2008043451A2 (en) 2006-10-09 2007-10-01 Device for the detection of smoke in a room

Publications (2)

Publication Number Publication Date
EP2076893A2 true EP2076893A2 (en) 2009-07-08
EP2076893B1 EP2076893B1 (en) 2012-03-28

Family

ID=37563997

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07818610A Active EP2076893B1 (en) 2006-10-09 2007-10-01 Device for the detection of smoke in a room

Country Status (9)

Country Link
EP (1) EP2076893B1 (en)
AT (1) ATE551685T1 (en)
DE (1) DE202006015553U1 (en)
DK (1) DK2076893T3 (en)
ES (1) ES2384897T3 (en)
PL (1) PL2076893T3 (en)
PT (1) PT2076893E (en)
SI (1) SI2076893T1 (en)
WO (1) WO2008043451A2 (en)

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5333418A (en) * 1992-09-02 1994-08-02 Ronald Chambers Recessed smoke detector
DE19951403B4 (en) 1999-10-26 2010-01-07 Schako Metallwarenfabrik Ferdinand Schad Kg Zweigniederlassung Kolbingen Method for detecting smoke
DE10046992C1 (en) 2000-09-22 2002-06-06 Bosch Gmbh Robert Scattered light smoke
DE10353836A1 (en) 2003-11-18 2005-06-09 Robert Bosch Gmbh fire alarm
DE102004002591B4 (en) 2004-01-16 2016-03-03 Robert Bosch Gmbh fire alarm
ATE397261T1 (en) 2005-11-04 2008-06-15 Siemens Ag TAMPER PROTECTION OF A FIRE DETECTOR
ATE394764T1 (en) 2005-11-04 2008-05-15 Siemens Ag COMBINED SCATTERED LIGHT AND EXTINCTION FIRE DETECTOR

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2008043451A2 *

Also Published As

Publication number Publication date
DK2076893T3 (en) 2012-07-16
EP2076893B1 (en) 2012-03-28
SI2076893T1 (en) 2012-06-29
ATE551685T1 (en) 2012-04-15
PT2076893E (en) 2012-05-31
PL2076893T3 (en) 2012-08-31
WO2008043451A2 (en) 2008-04-17
DE202006015553U1 (en) 2006-12-14
ES2384897T3 (en) 2012-07-13
WO2008043451A3 (en) 2008-05-29

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