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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 complex processes, high production costs, and low production efficiency, and achieve processing The effect of simple process, low cost and high production efficiency

Active Publication Date: 2010-02-10
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
Comparison scheme
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Embodiment 2

[0015] Embodiment 2, recoverable cable-type linear temperature detector, see Figure 5 , Figure 6 , the two ends of the temperature-sensing cable are respectively connected with the microcomputer modulator 6 and the terminal resistance R to form a closed-circuit signal acquisition circuit. A meltable NTC characteristic material layer 2 within the range of 180°C; another elastic metal conductor 1 coated with a semiconductor material layer 3 with a Vicat softening point within the range of 40°C-180°C; two conductors with different coating layers A belt-like or belt-like mesh insulation barrier layer 10 with holes is sandwiched between the wire cores, twisted or twisted together, and finally the outer sheath layer 5 is extruded together.

Embodiment 3

[0016] Embodiment 3, recoverable linear temperature detector, see Figure 7 , 8 , 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. The meltable NTC characteristic material layer 2 within the range of 180°C, the other is an elastic metal conductor 1, and a ribbon or ribbon mesh insulation barrier layer 10 with holes is sandwiched between the two wire cores and twisted or wound together Together, the stranding or winding pitch is preferably between 20 mm and 200 mm, and finally the outer sheath layer 5 is extruded together.

[0017] From Figure 4 , 6 , 8 It can be seen in the cable structures of each example that the insulating barrier layer 10 is always located between the two core wires.

[0018] The material and characteristic description that conductor and conductor cladding layer of the present invention adopt:

[0019] 1. Fusible...

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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 arecovered 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 betweentwo 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 producingcost.

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 fire detector with a very wide range of uses. For product features, see figure 1 , 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 meltable NTC chara...

Claims

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Application Information

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