CN101188038A - A separated recoverable multi-level alarming linear temperature sensing detector - Google Patents
A separated recoverable multi-level alarming linear temperature sensing detector Download PDFInfo
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- CN101188038A CN101188038A CNA2007101589672A CN200710158967A CN101188038A CN 101188038 A CN101188038 A CN 101188038A CN A2007101589672 A CNA2007101589672 A CN A2007101589672A CN 200710158967 A CN200710158967 A CN 200710158967A CN 101188038 A CN101188038 A CN 101188038A
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Abstract
The invention relates to a discrete-typed recoverable multi-level alarming linear temperature-sensing detector. The two ends of a temperature-sensing cable are respectively connected with a microcomputer modulator and a terminal resistor R to form a closed-circuit signal collecting circuit. The discrete-typed recoverable multi-level alarming linear temperature-sensing detector is characterized in that the structure of the temperature-sensing cable adopts two conductors, a plurality of dual-metal temperature switches are arranged between the two conductors in parallel, and the action temperature of the dual-metal temperature switches is different. The invention has the advantages that the dual-metal temperature switches have reversibility; after the temperature-sensing cable completes the alarm, as the decrease of the ambient temperature of the dual-metal temperature switches, the dual-metal temperature switches can be automatically restored to the initial status; the alarm temperature is unrelated to the ambient temperature and the utilization length, thereby overcoming the weaknesses of the prior art that the alarm temperature is low if the heated length is long, the alarm temperature is high if the heated length is short, the alarm temperature is low if the ambient temperature is high and the alarm temperature is high if the ambient temperature is low; the alarming temperature can be provided with multi-level alarming output.
Description
Technical field
The present invention relates to fire alarm installation, a kind of separated recoverable multi-level alarming linear temperature sensing detector.
Background technology
The parallel analog linear temperature-sensing fire detecting cable of discrete thermistor of the prior art referring to Fig. 1, is surveyed in the cable at this, is made up of a plurality of thermistor element R that are connected in parallel between two detecting conductors 14,15.When being heated for a certain section that surveys cable, with the rising of temperature, the resistance value of the thermistor in this section descends (or increase), causes the all-in resistance between the detector conductor to descend (or rising), reports to the police according to the variation of all-in resistance.The shortcoming of this detection cable is alarm temperature with the length of being heated, uses length relevant, and the long alarm temperature of the length of being heated is just low, and the short alarm temperature of the length of being heated is height just.So just unfavorable to the reliability of detector, report by mistake easily.For this reason, need to propose the higher line-type heat detector of a kind of reliability.
Summary of the invention
The object of the present invention is to provide a kind of separated recoverable multi-level alarming linear temperature sensing detector, different resistance signals are exported in the short circuit of can being heated according to the double metal temperature switch of different temperatures grade in parallel, realize multistage warning, and according to resistance, change in voltage judge output short-circuit, open circuit, the disconnection fault warning function, reusable.
The objective of the invention is to realize: a kind of separated recoverable multi-level alarming linear temperature sensing detector by following technical proposals, be to connect to form by temperature sensing cable, microcomputer modulator and terminal resistance R, it is characterized in that temperature sensing cable: be that a plurality of different temperatures grade double metal temperature switch in parallel are formed between two parallel conductors, the operating temperature of double metal temperature switch is to select for use between 60 ℃～180 ℃.
Compared with the prior art, the advantage that a kind of separated recoverable multi-level alarming linear temperature sensing detector of the present invention has is: one, be that double metal temperature switch has reversibility, after the double metal temperature switch of line-type heat detector is finished warning, along with the decline of double metal temperature switch environment temperature, bimetal release automatically restores to original state.The 2nd, alarm temperature and temperature sensing cable environment temperature, use length irrelevant, overcome and be heated in the prior art that the long alarm temperature of length is low, the short alarm temperature height of the length of being heated, the high alarm temperature of environment temperature is low, environment temperature is hanged down the high shortcoming of alarm temperature.The 3rd, alarm temperature can be set, can multistage warning output.
Description of drawings
Fig. 1 surveys the cable structure synoptic diagram for the parallel analog linear temperature-sensing of existing discrete thermistor;
Fig. 2-Fig. 6 is a kind of structural representation of separated recoverable multi-level alarming linear temperature sensing detector example 1-example 5;
Embodiment
A kind of separated recoverable multi-level alarming linear temperature sensing detector, example 1 is seen Fig. 2, be connected to form the closed circuit signaling Acquisition Circuit with microcomputer modulator 4 and terminal resistance R respectively by the temperature sensing cable two ends, the structure that it is characterized in that temperature sensing cable: adopt be connected in parallel between two strip conductors 1 a plurality of double metal temperature switch 2, double metal temperature switch 3, double metal temperature switch 2,3 operating temperature differences.
In the present embodiment, described two strip conductors 1 are connected respectively with the two ends of double metal temperature switch 2,3, ways of connecting can be that welding or machinery cooperate crimping or conductive adhesive, and the interval of its double metal temperature switch that is set up in parallel 2,3 can be designed to 2～10 every meter.Two strip conductors 1 of assembling back temperature sensing cable can keep the parallel extrusion molding of certain distance to be coated in the insulating material 6.Or two strip conductor 1 also can distinguish coated insulation material layer 6.
When temperature sensing cable when allowing to use high ambient temperature following, resistance is under the high-impedance state all the time between two conductors 1, microcomputer modulator 4 detects less than change in resistance, when the temperature sensing cable heating temperature surpasses the operating temperature of double metal temperature switch 2, double metal temperature switch 2 conductings, resistance reduces between two conductors 1, is lower than setting value, microcomputer modulator 4 output one-level alerting signals; Temperature sensing cable continues to be heated, and when temperature surpassed the operating temperature of double metal temperature switch 3, resistance was lower than the setting value that secondary is reported to the police between two conductors 1 of double metal temperature switch 3 conductings, the output multiple alarm.Double metal temperature switch 2,3 has different internal resistances, and action back internal resistance resistance is selected for use between 0-100M Ω.
After the foregoing description 1-embodiment 5 assemblings, two strip conductors 1 of temperature sensing cable can keep the parallel extrusion molding of certain distance to be coated in the insulating material 6; Or two strip conductor 1 can distinguish coated insulation material layer 6, weave oversheath 7 again.
The double metal temperature switch 2,3 of the foregoing description 1-embodiment 5 also can increase double metal temperature switch 8,9 and realize more multistage warning.
Material behavior explanation used in the present invention:
1, double metal temperature switch: operating temperature is 60 ℃～180 ℃.
2, metallic conductor: specification is selected for use between φ 0.2mm～φ 3mm.
Material can be selected the alloy material of steel wire, copper cash, iron wire, nickel wire, platinum line, stainless steel wire and above-mentioned material for use, wire external layer or zinc-plated, zinc-plated, copper facing, silver-plated, chromium plating, nickel plating.Conductor can be selected wherein a kind of, multiple in the above-mentioned metal.
5, external sheath layer: can be the wherein a kind of of high molecular polymer plastic insulation material.Also can have the specific volume resistance of NTC, CTR, ptc characteristics 10
-4～10
20Between material.
6, semiconductor layer: can be the wherein a kind of of high molecular polymer plastic insulation material.Specific volume resistance is 10
-4～10
8Between material (also can have NTC, CTR, ptc characteristics).
7 braiding oversheaths: can be that plastic monofilament or metal filament diameter are preferred between 0.01～0.5mm.
8 insulation material layers: the wherein a kind of or insullac that can be the high molecular polymer plastic insulation material.
Claims (7)
1. separated recoverable multi-level alarming linear temperature sensing detector, be connected to form the closed circuit signaling Acquisition Circuit with microcomputer modulator (4) and terminal resistance R respectively by the temperature sensing cable two ends, the structure that it is characterized in that temperature sensing cable: adopt two strip conductors (1), between conductor (1), be connected in parallel a plurality of double metal temperature switch (2), double metal temperature switch (3), double metal temperature switch (2), (3) operating temperature difference.The interval of its double metal temperature switch that is set up in parallel (2), (3) can be designed to 2～10 every meter, and the operating temperature of double metal temperature switch (2), (3) is to select for use between 60 ℃～180 ℃, and action back internal resistance is to select for use between the 0-100M Ω.
2. a kind of separated recoverable multi-level alarming linear temperature sensing detector according to claim 1, the structure that is characterised in that temperature sensing cable is also: adopt two strip conductors (1), wherein a strip conductor (1) coats semiconductor layer (5), and a plurality of double metal temperature switch (2), (3) are connected in parallel between semiconductor layer (5) and another conductor (1).
3. a kind of separated recoverable multi-level alarming linear temperature sensing detector according to claim 1, the structure that it is characterized in that temperature sensing cable: adopt two strip conductors (1), wherein a strip conductor (1) intermittently coats semiconductor layer (5), a plurality of double metal temperature switch (2) are connected in parallel between semiconductor layer (5) and another conductor (1), the a plurality of double metal temperature switch (3) that are connected in parallel between two conductors (1), double metal temperature switch (2), (3) action back internal resistance are identical.
4. a kind of separated recoverable multi-level alarming linear temperature sensing detector according to claim 1, the structure that it is characterized in that temperature sensing cable: adopt two strip conductors (1), a plurality of double metal temperature switch (2) are connected in series with R1, a plurality of double metal temperature switch (3) is connected in series with R2, are connected in parallel then between the conductor (1).R1 can equate also can not wait with the R2 resistance.
5. a kind of separated recoverable multi-level alarming linear temperature sensing detector according to claim 1, the structure that it is characterized in that temperature sensing cable: adopt two strip conductors (1), a plurality of double metal temperature switch (2) are connected in series the back with R1 and a plurality of double metal temperature switch (3) are connected in parallel between the conductor (1).
6. a kind of separated recoverable multi-level alarming linear temperature sensing detector according to claim 1 is characterized in that the structure of temperature sensing cable: also can increase double metal temperature switch (8), (9) realize more multistage warning.
7. according to the described a kind of separated recoverable multi-level alarming linear temperature sensing detector of claim 1-6, it is characterized in that the structure of temperature sensing cable: two strip conductors (1) of assembling back temperature sensing cable can keep the parallel extrusion molding of certain distance to be coated in the insulating material (6); Or two strip conductor (1) can distinguish coated insulation material layer (6), weave oversheath (7) again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101589672A CN101188038A (en) | 2007-12-18 | 2007-12-18 | A separated recoverable multi-level alarming linear temperature sensing detector |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101589672A CN101188038A (en) | 2007-12-18 | 2007-12-18 | A separated recoverable multi-level alarming linear temperature sensing detector |
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| Publication Number | Publication Date |
|---|---|
| CN101188038A true CN101188038A (en) | 2008-05-28 |
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| CNA2007101589672A Pending CN101188038A (en) | 2007-12-18 | 2007-12-18 | A separated recoverable multi-level alarming linear temperature sensing detector |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102353872A (en) * | 2011-07-06 | 2012-02-15 | 天津市松正电动汽车技术股份有限公司 | System and method for monitoring temperature of binding posts of electromobile |
| CN102352992A (en) * | 2011-10-10 | 2012-02-15 | 郑州朗睿科技有限公司 | LED (Light-Emitting Diode) signal light source with temperature compensating function |
| CN108801478A (en) * | 2017-04-28 | 2018-11-13 | 南宁富桂精密工业有限公司 | Temperature detection circuit, method and fan |
| CN113507034A (en) * | 2021-06-28 | 2021-10-15 | 长春理工大学 | Quick start intermediate infrared laser and corresponding polycrystal translation device |
| CN116183056A (en) * | 2023-04-28 | 2023-05-30 | 廊坊开发区中油新星电信工程有限公司 | Online monitoring and early warning system based on distributed optical fiber transmission |
-
2007
- 2007-12-18 CN CNA2007101589672A patent/CN101188038A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102353872A (en) * | 2011-07-06 | 2012-02-15 | 天津市松正电动汽车技术股份有限公司 | System and method for monitoring temperature of binding posts of electromobile |
| CN102352992A (en) * | 2011-10-10 | 2012-02-15 | 郑州朗睿科技有限公司 | LED (Light-Emitting Diode) signal light source with temperature compensating function |
| CN108801478A (en) * | 2017-04-28 | 2018-11-13 | 南宁富桂精密工业有限公司 | Temperature detection circuit, method and fan |
| CN113507034A (en) * | 2021-06-28 | 2021-10-15 | 长春理工大学 | Quick start intermediate infrared laser and corresponding polycrystal translation device |
| CN116183056A (en) * | 2023-04-28 | 2023-05-30 | 廊坊开发区中油新星电信工程有限公司 | Online monitoring and early warning system based on distributed optical fiber transmission |
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