ALARM

ALARM

To provide an alarm which suppresses an influence of a VOC gas and an Si-based gas on a gas sensor and has improved durability to these gases.SOLUTION: An alarm comprises: an upper case 11 provided with a sensor chamber S1 inside; a lower case 12; a gas sensor 15 accommodated in a case to detect an...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: KAWAMURA NAOMI, TOYODA KAZUO, OKUNO TATSUYUKI, TAJIMA KENGO
Format: Patent
Sprache:eng ; jpn
Schlagworte:
ALARM SYSTEMS
ORDER TELEGRAPHS
PHYSICS
SIGNALLING
SIGNALLING OR CALLING SYSTEMS
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Beschreibung
Zusammenfassung:To provide an alarm which suppresses an influence of a VOC gas and an Si-based gas on a gas sensor and has improved durability to these gases.SOLUTION: An alarm comprises: an upper case 11 provided with a sensor chamber S1 inside; a lower case 12; a gas sensor 15 accommodated in a case to detect an object gas contained in the sensor chamber S1; a slit 14 communicating the outside of the case with the sensor chamber S1; a partition wall 17 provided between the gas sensor 15 and the slit 14 in the sensor chamber S1; and a filter 16 provided to cover the slit 14 between the partition wall 17 and the slit 14.SELECTED DRAWING: Figure 2 【課題】ガスセンサに対するＶＯＣガスやＳｉ系ガスの影響を抑制し、これらのガスへの耐久性を向上した警報器を提供する。【解決手段】警報器は、センサ室Ｓ１が内部に設けられた上ケース１１、下ケース１２と、ケース内に収容され、センサ室Ｓ１に含まれる対象ガスを検出するガスセンサ１５と、ケースの外部とセンサ室Ｓ１とを連通するスリット１４と、センサ室Ｓ１内における、ガスセンサ１５とスリット１４との間に設けられた隔壁１７と、隔壁１７とスリット１４との間において、スリット１４を覆うように設けられたフィルタ１６と、を備える。【選択図】図２