Rauchmelder mit Verschmutzungsüberwachung

Détecteur de fumée doté d'une surveillance de l'encrassement

Smoke detector with contamination monitoring

Abstract

Bei der Erfindung handelt es sich um einen Streulichtrauchmelder, der bei einem Selbsttest die Verschmutzung von Raucheintrittsöffnungen und einem Insektengitter erkennt.
The detector (1) has a measuring light transmitter (4) provided in a measuring chamber (3) for transmitting light into the chamber. A diffused light test receiver (5) receives the light emitted by the transmitter. A diffused light measuring volume (19) is provided in the chamber with a labyrinth. A detector housing and the chamber are partially manufactured from a material with shiftable optical characteristics. The shiftable material that fulfills function of shiftable panel is not arranged between the transmitter or the receiver and the measuring volume. Independent claims are also included for the following: (1) a method for manufacturing a smoke detector (2) a method for detecting contamination of a smoke inlet opening and/or insect grid of a detector (3) a method for coloring a detector.

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Description

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NO-Patent Citations (0)

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Cited By (9)

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    EP-2166521-A1March 24, 2010Nittan Company, LimitedDétecteur de flamme
    EP-2330577-A1June 08, 2011Atral-Secal GmbHRauchmelder mit Infrarot-Abdecküberwachung
    EP-2423895-B1March 08, 2017Siemens Schweiz AGStreulicht-Brandmelder mit Mitteln zur Unterdrückung einer akustischen Warnung im Falle einer niedrigen Batteriespannung
    EP-2555176-A1February 06, 2013Atral-Secal GmbHVorrichtung zum Erkennen von Bränden
    EP-2747047-A1June 25, 2014Schneider Electric Industries SASSmoke alarm with battery charge level indicator
    EP-3113133-A3May 17, 2017Atral-Secal GmbHSmoke detector with combined coverage and particle detection at the smoke inlet opening
    US-8201973-B2June 19, 2012Lixil Nittan Company, LimitedFlame detector
    US-9679468-B2June 13, 2017Tyco Fire & Security GmbhDevice and apparatus for self-testing smoke detector baffle system
    WO-2015162529-A1October 29, 2015Tyco Fire & Security GmbhDispositif et appareil pour auto-esssai de système déflecteur de détecteur de fumée