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Condensation-proof smoke detector base

A smoke detector and anti-condensation technology, which is applied to fire alarms that rely on smoke/gas effects, can solve problems such as detector false alarms, light scattering, and corroded circuit boards, so as to avoid false alarms Effect

Inactive Publication Date: 2017-05-31
CHINA NUCLEAR POWER TECH RES INST CO LTD +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the moisture entering the detection chamber of the detector forms water droplets, it will cause a large amount of scattering of light, causing false alarms on the detector
Moisture is also easy to absorb dust, which will cause leakage current on the circuit board of the detector and corrode the circuit board. In wet weather such as rainy days, the situation will be more serious

Method used

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  • Condensation-proof smoke detector base
  • Condensation-proof smoke detector base
  • Condensation-proof smoke detector base

Examples

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Embodiment Construction

[0032] see below Figure 1 to Figure 7 The anti-condensation type smoke detector base of the present invention is described in detail.

[0033] Such as figure 1 , 2 Shown is an external schematic diagram of the base of the anti-condensation smoke detector equipped with a smoke detector module, which is composed of an outer shell 1 and a cover plate 11, and a smoke detector module 14 is embedded therein. On the outer side of the housing 1 , a nameplate 2 and an identification plate 4 are respectively fixed by screws 3 .

[0034] Such as image 3 Shown is a schematic cross-sectional view of the base of the anti-condensation smoke detector equipped with a smoke detector module. Wherein, the smoke sensor module 14 is embedded in the outer casing 1 . The inner wall of the outer casing 1 is a guiding slope structure, that is, it gradually becomes thicker from the end away from the cover plate 11 to the end close to the cover plate 11 . Therefore, it is convenient for the base ...

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Abstract

The invention provides a condensation-proof smoke detector base. The condensation-proof smoke detector base comprises a housing and a cover plate, wherein a smoke sensing probe module is embedded in the condensation-proof smoke detector base, a centering surface parallel to the cover plate is arranged in the housing, a base of the smoke sensing probe module is attached to the centering surface, and a heating piece is arranged between the base and the centering surface. Therefore, the smoke sensing probe module connected with the base can be heated by the heating piece, so that water drops formed through saturation of water vapor in air entering a smoke detector are heated, and false alarm caused by condensation is avoided.

Description

technical field [0001] The invention relates to the field of intelligent security technology, in particular to an anti-condensation type smoke detector base. Background technique [0002] The photosensitive element is the main component of the fire detector. It detects subtle changes in the external environment through optical and physical principles, and often mistakes substances (such as dust and water mist) with certain characteristics similar to smoke as fire smoke. In addition, since the photosensitive element is exposed to the external environment for a long time, it is easily affected by dust and moisture in the air, which reduces the sensitivity. Because most of the nuclear power plants are located in coastal cities, the climate is humid and the humidity often exceeds the standard, especially during the rainy season in summer and the period of returning to the south (southern cities) in winter, the humidity often reaches above 95%. Beads, when the temperature drops ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G08B17/10
CPCG08B17/10
Inventor 关济实李蕊齐良才刘岩杜晓光徐宇航常新彩陶长兴张立蕊付建鹏
Owner CHINA NUCLEAR POWER TECH RES INST CO LTD
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