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Point type temperature sensing fire detector

A fire detector, point-type technology, applied in the direction of electrical fire alarms, instruments, visible signal devices, etc., can solve the problems of damage to temperature sensing elements and high labor costs, achieve rapid temperature change sensing, and improve fire safety. Early warning ability, the effect of reducing material cost and labor cost

Pending Publication Date: 2020-08-07
GUOTAI YIAN ELECTRICITY BEIJING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The labor cost is relatively high. In addition, the detection part adopts external detection, which needs to expose the temperature sensing element, which is easy to cause damage to the temperature sensing element.

Method used

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  • Point type temperature sensing fire detector
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Experimental program
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Effect test

Embodiment 1

[0024] Embodiment 1 of the present application provides a point-type temperature-sensitive fire detector, such as figure 1 and figure 2 As shown, the point-type temperature-sensitive fire detector is arranged from top to bottom as an upper cover 1, a hollow printed circuit board 2 (PCB), a middle seat 3 and a base 4 connected in sequence;

[0025] The lower end of the upper cover 1 is in close contact with the printed circuit board 2, the printed circuit board 2 is arranged in the accommodation groove provided by the middle seat 3, the middle seat 3 is placed on the base 4, and the two openings of the middle seat 3 are aligned with the The two pins of the base 4 are plugged and adapted, and a conductive power bus circuit is formed by contacting the pin shrapnel with the two electrical connection pads on the printed circuit board 2; The airflow is guided and converged, so that the airflow enters and passes through the hollow printed circuit board 2, so that the patch thermal ...

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Abstract

The invention discloses a point type temperature sensing fire detector. The detector is provided with an upper cover, a hollow printed circuit board tightly attached to the upper cover, a middle baseclamped with the upper cover and a base clamped with the middle base in a threaded mode from top to bottom in sequence. The printed circuit board is arranged in a containing groove formed in the middle base, two open holes of the middle base are matched with two pins of the base in an inserted mode, and the two open holes make contact with two electrical connection bonding pads on the printed circuit board through base pin elastic pieces and are communicated with an external bus power source. Airflow enters and passes through the hollow printed circuit board through the diversion trench of theupper cover, so a patch thermosensitive element on the printed circuit board is in full contact with the airflow. When the temperature of the airflow is sensed to be abnormal, the light-emitting diode indicating lamp is lightened through the temperature collecting and processing circuit on the printed circuit board, and an alarm signal is transmitted to the fire alarm controller through the bus.And the surface-mounted element is adopted, so that the material cost and the labor cost are reduced, the temperature change is sensed more quickly, and the fire early-warning capability of the detector is improved.

Description

technical field [0001] The present application relates to the technical field of fire automatic alarm, in particular to a point-type temperature-sensitive fire detector. Background technique [0002] With the construction and use of a large number of buildings, the automatic fire alarm system used to ensure the safety of people and property is becoming more and more necessary. The detector in the automatic fire alarm system is a fire alarm component, and its function is to detect the Parameters such as smoke, temperature, etc. are converted into electrical signals for intelligent judgment, and the judgment results are sent to the fire alarm controller through the transmission bus. [0003] Detectors can be divided into three categories: smoke detectors, heat detectors and flame detectors. Temperature-sensitive fire detectors are generally composed of three parts: temperature-sensing elements, circuits and alarms, and mainly use heat-sensitive elements to detect fires. In t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G08B17/06G08B5/36
CPCG08B5/36G08B17/06
Inventor 严宝华安磊李金星
Owner GUOTAI YIAN ELECTRICITY BEIJING
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