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Recoverable cable type linear temperature-sensing detector

A temperature-sensitive detector and line-type technology, applied to instruments, thermometers and thermometers using electric/magnetic elements that are directly sensitive to heat, can solve problems such as low production efficiency, high production costs, and complicated processes, and achieve production The effect of high efficiency, low cost and simple processing technology

Active Publication Date: 2007-11-28
SHENYANG P T SECURITY TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The disadvantage of the above-mentioned products is that the layer 4 is braided outside the whole wire core. This process is more complicated, the production efficiency is low, and the production cost is relatively high.

Method used

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  • Recoverable cable type linear temperature-sensing detector
  • Recoverable cable type linear temperature-sensing detector
  • Recoverable cable type linear temperature-sensing detector

Examples

Experimental program
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Embodiment 2

[0015] Embodiment 2, the recoverable cable-type linear temperature detector, see Fig. 5 and Fig. 6, the two ends of the temperature-sensing cable are respectively connected with the microcomputer modulator 6 and the terminal resistor R to form a closed-circuit signal acquisition circuit, which is characterized in that the sensing The structure of the warm cable is: an elastic metal conductor 1 is coated with a layer 2 of a meltable NTC characteristic material with a Vicat softening point in the range of 40°C to 180°C; another elastic metal conductor 1 is wrapped with a Vicat softening point of The semiconductor material layer 3 in the range of 40°C to 180°C; two wire cores with different coating layers are sandwiched between a tape-shaped or tape-shaped mesh insulation barrier layer 10 with holes, and then twisted or twisted together. Finally the outer sheath layer 5 is co-extruded.

Embodiment 3

[0016] Embodiment 3, a recoverable linear temperature detector, see Figures 7 and 8, the two ends of the temperature-sensing cable are respectively connected to the microcomputer modulator 6 and the terminal resistor R to form a closed-circuit signal acquisition circuit, which is characterized in that the temperature-sensing cable The structure is: an elastic metal conductor 1 is coated with a meltable NTC characteristic material layer 2 with a Vicat softening point in the range of 40°C to 180°C, the other is an elastic metal conductor 1, and a wire core is sandwiched between two wire cores. The perforated belt-shaped or belt-shaped net insulation barrier layer 10 is twisted or twisted together, and the twisted or twisted pitch is preferably between 20 mm and 200 mm, and finally the outer sheath layer 5 is extruded together.

[0017] It can be seen from the cable structures shown in Figs. 4, 6 and 8 that the insulating barrier layer 10 is always located between the two core wir...

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Abstract

The invention relates to a recovery cable linear temperature detector. As two ends of temperature cable are connected with microcomputer modulator and terminal resistance R respectively a closed signal collection circuit is formed. It is characterized in that the structure of temperature cable is that an elastic metal conductor is covered by melting NTC characteristic material layer with vicat softening point in 40deg.C-180deg.C; anther is an elastic metal conductor; after a hole belt or net insulation obstructing layer is set between two line cores they are twisted or winded; finally they are covered by outer sleeve layer in plastic protrusion together. Multiple starting resistance values for alarming temperature signals heated on one meter of temperature cable are set in memory of microcomputer modulator, which inspects resistance change of melting NTC characteristic material layer between conductors. When circumstance temperature makes melting NTC characteristic layer soften, elastic metal conduct and melting NTC characteristic material layer forms short circuit so that output of alarming signal of given temperature is realized. When short circuit and open circuit happen between two conductors by not fire factor, failure signals of short circuit and open circuit are outputted by microcomputer modulator. It is provided with simple process, high productivity and low producing cost.

Description

technical field [0001] The invention relates to a fire alarm device and a recoverable cable-type linear temperature-sensitive detector. technical background [0002] The linear temperature-sensitive fire detector in the prior art is a kind of fire detector with a very wide range of uses. The product features are shown in Figure 1 and Figure 2: [0003] An elastic metal conductor 1 is coated with NTC or CTR characteristic material layer 2 with a Vicat softening point in the range of 40°C to 180°C, and then weaves a mesh covering layer 4, and the other elastic metal conductor 1 is wrapped with Vicat softening point The point is the meltable semiconductor material layer 3 in the range of 40°C to 180°C, two cores with different coating layers are twisted or twisted together, and the twisted or twisted pitch is preferably between 20mm and 200mm, and finally The outer sheath layer 5 is extruded together. [0004] Two elastic metal conductors 1 are respectively coated with a melt...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01K7/16
Inventor 张陈王文江
Owner SHENYANG P T SECURITY TECH
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