CN101149863B - Irrecoverable type double-temperature alarming short circuit, breakage fault output line type temperature-sensing detector - Google Patents
Irrecoverable type double-temperature alarming short circuit, breakage fault output line type temperature-sensing detector Download PDFInfo
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- CN101149863B CN101149863B CN2007101578894A CN200710157889A CN101149863B CN 101149863 B CN101149863 B CN 101149863B CN 2007101578894 A CN2007101578894 A CN 2007101578894A CN 200710157889 A CN200710157889 A CN 200710157889A CN 101149863 B CN101149863 B CN 101149863B
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Abstract
The wire-type non-restored two-temperature heat-sensing detector realizes two-grade fixed-temperature alarming and outputting of short-circuit break-circuit fault and the cut-off fault of a resistance signal processor. Two ends of a heat-sensing cable are respectively connected with the resistance signal processor and a terminal resistor to form a closed-circuit signal collection circuit. It is characterized in that the structure of the heat-sensing cable is two elastic metal conductors in which one is coated with a semi-conductor material layer capable of melting or fusing and the other is coated with an insulation material layer capable of melting or fusing, the two wires coated with different layers are twisted or wound together to produce the heat-sensing cable. Advantage: two alarming temperatures can be freely combined, high reliability of product and alarming sensitivity and low cost.
Description
Technical field
The present invention relates to fire alarm installation, a kind of beyond retrievable double-temperature alarm short-circuit, open circuit fault output line-type heat detector.
Technical background
A kind of irrecoverable linear temperature-sensitive detector of the prior art with the short trouble warning, application number ZL 200620133478.2 sees Fig. 1: this detector comprises the detection cable, resistance, with the resistance signal measurement mechanism, the detection cable comprises, two detecting conductors 4,5 are arranged on two semiconductor material layer 7 and fused insulating layers 6 between the detecting conductor.Infinitely great between 4,5 resistances of two detecting conductors under the normal condition, when 6 fusings of temperature rising fused insulating layer, detecting conductor 4 is reported a fire with semiconductor material layer 7 short circuits, when be heated or the external force effect under two detecting conductors, 4,5 short circuit Times short troubles.
Above-mentioned a kind of irrecoverable linear temperature-sensitive detector of reporting to the police with short trouble in use because of detector can only be exported the one-level fire alarm, is being subjected under the external force situation wrong report that also is short-circuited easily of detecting conductor 4 and semiconductor material layer 7.So, need to propose a kind of new beyond retrievable double-temperature alarm short-circuit, open circuit fault output line-type heat detector, to improve line-type heat detector reliability in use.
Summary of the invention
The purpose of this invention is to provide a kind of beyond retrievable double-temperature alarm short-circuit, open circuit fault output line-type heat detector, realize that the twin-stage constant temperature is reported to the police, short trouble is exported, open circuit fault is exported, the output of resistance signal treating apparatus disconnection fault.
A kind of beyond retrievable double-temperature alarm short-circuit, open circuit fault output line-type heat detector, be connected to form the closed circuit signaling Acquisition Circuit with resistance signal treating apparatus and terminal resistance respectively by the temperature sensing cable two ends, terminal resistance R resistance value is preferred at 50 Ω～50M Ω.The structure that it is characterized in that temperature sensing cable is two elastic metallic conductors, wherein one coats and fusiblely maybe can melt semiconductor material layer, another root coats and fusiblely maybe can melt insulation material layer, two cores that different clads are arranged are stranded together or be intertwined, and it is stranded or to twine pitch preferred between 20mm～200mm.In the resistance signal treating apparatus, be provided with the electric signal warning startup value of three resistances or voltage signal variation range, resistance quantitative changeization between two elastic metallic conductors of resistance signal treating apparatus monitoring, when temperature sensing cable is heated, coating the fusible elastic conductor that maybe can melt insulation material layer contacts with the outer fusible semiconductor material layer that maybe can melt that coats of another root elastic conductor, fusible this Standard resistance range that maybe can melt semiconductor material layer is then judged output one-level constant temperature alerting signal by the resistance signal treating apparatus; Short circuit between two elastic metallic conductors, this Standard resistance range of short circuit between two elastic metallic conductors is then judged the warning of output secondary constant temperature by the resistance signal treating apparatus.When not having the one-level alerting signal, output short-circuit fault-signal during two elastic metallic short circuits, when two elastic metallic conductors wherein one open circuit, this Standard resistance range of two elastic metallic conductors, then judge output open circuit fault signal by the resistance signal treating apparatus, resistance signal treating apparatus relay is judged the output of output disconnection fault signal.
The outstanding advantage of this beyond retrievable double-temperature alarm short-circuit, open circuit fault output line-type heat detector is: can be by change in resistance output two-stage constant temperature alerting signal, short trouble signal, open circuit fault signal and the output of resistance signal treating apparatus disconnection fault signal between two elastic conductors of resistance signal treating apparatus judgement.
When the temperature sensing cable temperature surpasses setting value, send the constant temperature alerting signal by the resistance signal treating apparatus.The constant temperature alarm temperature be in 60 ℃, 70 ℃, 85 ℃, 105 ℃, 138 ℃, 180 ℃ six grades by the height two alarm temperature combination in any, the temperature sensing cable of making, the product quality reliability height, cost is low, temperature-sensitive warning sensitivity height.
Description of drawings
Fig. 1 is a kind of irrecoverable line-type heat detector synoptic diagram with short circuit newspaper fault of prior art;
Fig. 2 is a kind of beyond retrievable double-temperature alarm short-circuit of the present invention, open circuit fault output line-type heat detector example 1 structural representation;
Fig. 3 is a kind of beyond retrievable double-temperature alarm short-circuit of the present invention, open circuit fault output line-type heat detector example 2 structural representations;
Embodiment
A kind of beyond retrievable double-temperature alarm short-circuit, open circuit fault output line-type heat detector, example 1 is seen Fig. 2: comprise that the temperature sensing cable two ends are connected with terminal resistance 27 with resistance signal treating apparatus 28 respectively, the terminal resistance resistance is preferred at 50 Ω～50M Ω, form closed circuit resistance signal Acquisition Circuit, two elastic metallic conductors 21 that it is characterized in that temperature sensing cable, wherein conductor 21 coats and fusiblely maybe can melt insulating material 22, another root conductor 21 coats and fusiblely maybe can melt semiconductor material layer 23, two line bodies that the different materials clad is arranged, stranded or be intertwined, it is stranded or the winding pitch is preferred between 20mm～200mm, makes temperature sensing cable.
The warning function principle is seen Fig. 2, the electric signal warning startup value of being heated and in resistance signal treating apparatus 28, being provided with three resistances or voltage signal variation range according to temperature sensing cable, resistance quantitative changeization between two elastic metallic conductors 21 of resistance signal treating apparatus 28 monitorings, when temperature sensing cable is heated and surpass a design temperature, coat the fusible softening or fusing of insulation material layer of maybe can melting, under the elastic force effect of elastic metallic conductor 21, coating the fusible elastic metallic conductor 21 that maybe can melt insulation material layer exposes, the elastic metallic conductor 21 that exposes contacts with the fusible semiconductor material clad 23 that maybe can melt of another root elastic metallic conductor, fusible this Standard resistance range that maybe can melt semiconductor material layer 23 is then judged output one-level constant temperature alerting signal by resistance signal treating apparatus 28; When temperature is raised to above another design temperature, coat fusible the semiconductor material layer 23 softening or fusings of maybe can melting, short circuit between two elastic metallic conductors 21 is then judged output secondary constant temperature alerting signal by resistance signal treating apparatus 28.When not having the one-level alerting signal, this Standard resistance range of short circuit between two elastic metallic conductors 21, then judge the output short-circuit fault-signal by resistance signal treating apparatus 28, when two elastic metallic conductors 21 wherein one open circuit, this Standard resistance range of two elastic metallic conductors 21 is then judged output open circuit fault signal and resistance signal treating apparatus 28 relays judgement output disconnection fault signal by resistance signal treating apparatus 28.
The structure outermost layer of the foregoing description 1 is extrusion molding or wrapped external sheath layer 24 or braiding external sheath layer 26 again.
The structure outermost layer of the foregoing description 1 also can coat one deck screen layer 25 again, last extrusion molding or wrapped external sheath layer 24.
2 one kinds of beyond retrievable double-temperature alarm short-circuits of embodiment, open circuit fault output line-type heat detector is characterized in that the structure of temperature sensing cable, see Fig. 3: elastic metallic conductor 21 coats the fusible semiconductor material layer 23 that maybe can melt and coats and fusiblely maybe can melt insulation material layer 22, then directly and another root elastic metallic conductor 21 stranded or be intertwined, and then extrusion molding or wrapped external sheath layer 24.Also elastic metallic conductor 21 coat earlier fusible maybe can melt to coat again behind the insulation material layer 22 fusiblely maybe can melt semiconductor material layer 23, then directly and another root elastic metallic conductor 21 stranded or be intertwined, and then extrusion molding or wrapped external sheath layer 24.
The structure of the foregoing description 2 also can be core stranded or be intertwined after, coat earlier one deck screen layer 25, and then extrusion molding or wrapped external sheath layer 24.
The structure of the foregoing description 1, example 2 also can be stranded or be intertwined after, coat one deck para tape 27, and then extrusion molding or wrapped external sheath layer 24 or braiding external sheath layer 26.
Two elastic metallic conductors 21 of the foregoing description 1, embodiment 2 can be with a kind of material, also can be two kinds of unlike materials.
Fusible also fusible NTC, the CTR characteristic material layer 29 of maybe can melting of semiconductor material layer 23 that maybe can melt in the foregoing description 1, example 2 structures.
Also can increase in the structure of the foregoing description 1, example 2 one with original two cores in any identical core.
The material that conductor of the present invention, conductor clad are adopted and the behavioral illustrations of coating layer material:
1. the fusible insulation material layer (versatile material) that maybe can melt:
The fusible insulation material layer (versatile material) that maybe can melt: select the performance of insulating material to be: Vicat softening point is 40 ℃～180 ℃, and specific insulation is 10
10～10
20All plastics of Ω cm, elastomeric material.
2. elastic metallic conductor: specification is selected for use between Φ 0.2mm～3.0mm.
Material can be selected the alloy material of steel wire, copper cash, iron wire, nickel wire, platinum line, stainless steel, memorial alloy line and above-mentioned material for use, wire external layer or zinc-plated, zinc-plated, copper facing, silver-plated, chromium plating, nickel plating.Because of metal wire rod has certain intensity and elasticity after being subjected to stretch, extending or being heated, so be called the elastic metallic conductor.
3, the fusible semiconductor material layer (versatile material) that maybe can melt: select the performance of insulating material to be: Vicat softening point is 40 ℃～180 ℃, and specific volume resistance is 10
-2～10
9The material of all plastics, rubber, the semiconductor material of making or the above-mentioned NTC of having characteristic, CTR characteristic, ptc characteristics.
4, extrusion molding external sheath layer (versatile material): material can be high molecular polymer insulating material or PTC, NTC, CTR characteristic macromolecule polymer material, also can be the semiconductor macromolecule polymer material.The thickness of extrusion molding restrictive coating is selected between 0.1mm～2.0mm.
5, screen layer (versatile material): material can be plastic-aluminum or compound copper-plastics band or metal forming, and thickness is to select for use between 0.01mm～1.0mm, and width is preferred between 2～20m.
6, braiding external sheath layer (versatile material): material can be all plastics, metal monofilament, and the line footpath is selected for use between Φ 0.01mm～1.0mm.
7, para tape (versatile material): material can be all plastics, and thickness is to select for use between 0.01mm～1.0mm, and width is preferred between 2mm～20mm.
8, fusible NTC or the CTR characteristic material layer of maybe can melting: (versatile material): select the performance of material to be; All plastics, elastomeric material with NTC or CTR characteristic coat thickness and select between 0.1mm～1.0mm.
Claims (11)
1. a beyond retrievable double-temperature alarm short-circuit, open circuit fault are exported line-type heat detector, comprise that the temperature sensing cable two ends are connected with terminal resistance (27) with resistance signal treating apparatus (28) respectively, form closed circuit resistance signal Acquisition Circuit, the two elastic metallic conductors (21) that it is characterized in that temperature sensing cable, wherein a conductor (21) coats the fusible insulation material layer (22) that maybe can melt, another root conductor (21) coats the fusible semiconductor material layer (23) that maybe can melt, two line bodies that the different materials clad is arranged, stranded or be intertwined, make temperature sensing cable.
2. a kind of beyond retrievable double-temperature alarm short-circuit according to claim 1, open circuit fault output line-type heat detector, in resistance signal treating apparatus (28), be provided with the electric signal warning startup value of three resistances or voltage signal variation range, resistance quantitative changeization between resistance signal treating apparatus (28) two elastic metallic conductors of monitoring (21), when temperature sensing cable is heated and surpass a design temperature, coat the fusible softening or fusing of insulation material layer (22) of maybe can melting, elastic metallic conductor (21) is under the effect of elastic force, coating the fusible elastic metallic conductor (21) that maybe can melt insulation material layer (22) exposes, the elastic metallic conductor (21) that exposes contacts with the fusible semiconductor material clad (23) that maybe can melt of another root elastic metallic conductor (21), fusible this Standard resistance range that maybe can melt semiconductor material layer (23) is then judged output one-level constant temperature alerting signal by resistance signal treating apparatus (28); When temperature is raised to above another design temperature, coat the fusible softening or fusing of semiconductor material layer (23) of maybe can melting, short circuit between two elastic metallic conductors (21) is then judged output secondary constant temperature alerting signal by resistance signal treating apparatus (28); When not having the one-level alerting signal, this Standard resistance range of short circuit between two elastic metallic conductors (21) is then judged the output short-circuit fault-signal by resistance signal treating apparatus (28); When two elastic metallic conductors (21) wherein one open circuit, this Standard resistance range of two elastic metallic conductors (21) is then judged output open circuit fault signal by resistance signal treating apparatus (28).
3. a kind of beyond retrievable double-temperature alarm short-circuit according to claim 1, open circuit fault are exported line-type heat detector, it is characterized in that the structure of temperature sensing cable, and outermost layer is extrusion molding or wrapped or braiding external sheath layer again; Or elder generation coats one deck screen layer (25), last extrusion molding or wrapped external sheath layer (24).
4. according to the described a kind of beyond retrievable double-temperature alarm short-circuit of one of claim 1～3, open circuit fault output line-type heat detector, it is characterized in that in the structure of temperature sensing cable: two elastic metallic conductors (21) are with a kind of material, or two kinds of unlike materials.
5. according to the described a kind of beyond retrievable double-temperature alarm short-circuit of one of claim 1～3, open circuit fault output line-type heat detector, it is characterized in that in the structure of temperature sensing cable: the fusible semiconductor material layer (23) that maybe can melt changes fusible NTC, the CTR characteristic material layer (29) of maybe can melting into.
6. according to the described a kind of beyond retrievable double-temperature alarm short-circuit of one of claim 1～3, open circuit fault output line-type heat detector, it is characterized in that increasing in the structure of temperature sensing cable one with original two cores in any identical core.
7. beyond retrievable double-temperature alarm short-circuit, open circuit fault output line-type heat detector, comprise that the temperature sensing cable two ends are connected with terminal resistance (27) with resistance signal treating apparatus (28) respectively, form closed circuit resistance signal Acquisition Circuit, it is characterized in that: a wherein elastic metallic conductor (21) of two elastic metallic conductors (21) of temperature sensing cable coats the fusible semiconductor material layer (23) that maybe can melt and coats the fusible insulation material layer (22) that maybe can melt again, directly stranded or be intertwined then with another root elastic metallic conductor (21), extrusion molding or wrapped external sheath layer (24) or weave external sheath layer (26) more at last; Or an elastic metallic conductor (21) coats earlier and fusiblely coats the fusible semiconductor material layer (23) that maybe can melt again after maybe can melting insulation material layer (22), then directly and another root elastic metallic conductor (21) stranded or be intertwined, and then extrusion molding or wrapped external sheath layer (24), make temperature sensing cable.
8. a kind of beyond retrievable double-temperature alarm short-circuit according to claim 7, open circuit fault output line-type heat detector, the structure that it is characterized in that temperature sensing cable is: core stranded or be intertwined after, coat one deck screen layer (25) earlier, and then extrusion molding or wrapped external sheath layer (24).
9. according to the described a kind of beyond retrievable double-temperature alarm short-circuit of one of claim 7～8, open circuit fault output line-type heat detector, it is characterized in that in the structure of temperature sensing cable: two elastic metallic conductors (21) are with a kind of material, or two kinds of unlike materials.
10. according to the described a kind of beyond retrievable double-temperature alarm short-circuit of one of claim 7～8, open circuit fault output line-type heat detector, it is characterized in that in the structure of temperature sensing cable: the fusible semiconductor material layer (23) that maybe can melt changes fusible NTC, the CTR characteristic material layer (29) of maybe can melting into.
11. according to the described a kind of beyond retrievable double-temperature alarm short-circuit of one of claim 7～8, open circuit fault output line-type heat detector, it is characterized in that increasing in the structure of temperature sensing cable one with original two cores in any identical core.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101578894A CN101149863B (en) | 2007-11-02 | 2007-11-02 | Irrecoverable type double-temperature alarming short circuit, breakage fault output line type temperature-sensing detector |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101578894A CN101149863B (en) | 2007-11-02 | 2007-11-02 | Irrecoverable type double-temperature alarming short circuit, breakage fault output line type temperature-sensing detector |
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| Publication Number | Publication Date |
|---|---|
| CN101149863A CN101149863A (en) | 2008-03-26 |
| CN101149863B true CN101149863B (en) | 2010-12-15 |
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| CN2007101578894A Active CN101149863B (en) | 2007-11-02 | 2007-11-02 | Irrecoverable type double-temperature alarming short circuit, breakage fault output line type temperature-sensing detector |
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| CN105448411A (en) * | 2014-09-18 | 2016-03-30 | 瑞侃电子(上海)有限公司 | Cable and manufacturing method thereof, cable bundle and manufacturing method thereof, and load circuit |
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Application publication date: 20080326 Assignee: Shenyang Putaian Technology Co.,Ltd. Assignor: Zhang Chen Contract record no.: 2014210000036 Denomination of invention: Irrecoverable type double-temperature alarming short circuit, breakage fault output line type temperature-sensing detector Granted publication date: 20101215 License type: Exclusive License Record date: 20140505 |
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Effective date of registration: 20160429 Address after: Shen Liaodong road Tiexi District of Shenyang City, Liaoning province 110022 47-2 Acer international city 31-2 Patentee after: Shenyang Putaian Technology Co.,Ltd. Address before: Shenyang City, Liaoning City Road 110011, Shenhe District 35 block A No. 3 Patentee before: Zhang Chen |