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Fire alarm

一种报警器、火焰的技术，应用在火灾报警器、报警器、靠出现辐射作用的火灾报警器等方向，能够解决报警器不能作用等问题，达到容易更换的效果

Active Publication Date: 2010-11-24
MINIMAX LIMITED
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But without this part, the alarm cannot function, because the optical window does not have any other support in the existing construction mode

Method used

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Embodiment Construction

[0042] figure 1 Schematic representation of a flame alarm according to the invention consisting of an upper housing part 1.1 and a lower housing part 1.2 with a gasket between them, wherein the upper housing part and the lower housing part 1.1, 1.2 are connected to each other via an electrical plug-in device 14 , which is provided with a signal line and a voltage source. In the upper housing part 1.1, an electronic assembly 18 is located on one plane, which consists of a UV radiation sensor 8.1 with a UV filter 10.1, a UV radiation source 9.1, an address switch 17 and a communication module 16 with a plug-in device 15 composition. The optical window 7 consists of sapphire and is supported by the adapter flange 4 in which the reflector protective grid 2.1 is also arranged. The flame phenomenon emitting UV radiation can be detected by the radiation sensor 8.1 in a given wavelength range. To check the degree of contamination of the optical window 7, a light signal of the corre...

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PUM

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Abstract

A fire alarm consists of a housing in which sensors (8.1,8.2), radiation sources (9.1,9.2), and an optical window (7) are disposed. A reflector protection basket or ring (2.1,2.2) is disposed above the optical window (7). The basket or ring is suitable for protecting the optical window (7) against mechanical influences, allows UV and IR radiation (16) to pass through to a sufficient degree, and reflects UV and IR radiation (16) from the housing interior, on its inside. Monitoring of the contamination of the window, function monitoring of the sensors and of the signal processing electronics, as well as easy replaceability of the components in the fire alarm are provided.

Description

technical field [0001] The invention relates to a flame alarm corresponding to the preamble of claim 1 . Background technique [0002] The invention can be applied wherever a flame alarm is used to detect fire and generate IR radiation or UV radiation which is measured after passing through an optical window, wherein the optical window is monitored for dirtiness and function, And protecting this window from mechanical damage enables undisturbed detection of burning phenomena. [0003] Flame detectors for detecting optical combustion phenomena have long been known. Flame detectors generally consist of a housing in which the sensor element and the corresponding signal processing electronics are arranged, wherein the optical window closes the housing in the direction of the combustion phenomenon to be detected. Radiation enters the housing through this optical window and is detected by the sensor. The problem is that the optical window may become contaminated, thereby reduci...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G08B17/12
CPCG08B17/12G08B29/043G08B17/113
Inventor H·迪特默D·西默P·朱尔则B·齐姆斯A·格罗涩夫A·施塔默K·伦凯特
Owner MINIMAX LIMITED