CN101055212B - Parallel connection double metal temperature switch linear temperature-sensing detector - Google Patents
Parallel connection double metal temperature switch linear temperature-sensing detector Download PDFInfo
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- CN101055212B CN101055212B CN200710011476A CN200710011476A CN101055212B CN 101055212 B CN101055212 B CN 101055212B CN 200710011476 A CN200710011476 A CN 200710011476A CN 200710011476 A CN200710011476 A CN 200710011476A CN 101055212 B CN101055212 B CN 101055212B
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Abstract
A parallel dual-metal temperature switch linetype temperature-sensitive detector is connected to a computer modulator and a terminal resistance R to form a closed single acquisition circuit by two ends of a temperature-sensitive cable, characterized in that the structure of the temperature-sensitive cable comprises two conductor, one of which is coated with a conductive layer, a plurality of dual-metal temperature switch are connected parallel between the conductive layer and the bare conductor, then all are cladded in an insulation sleeve; the length of the temperature-sensitive cable can be designed to be 20m~500m, and the interval of the dual-metal temperature switch disposed parallel can be 0.2m~1m.The invention is superior in that: 1. the dual-metal temperature switch is provided with reversibility which can restore automatically to initial state as the decline of surrounding temperature of the detection cable when the temperature-sensitive cable finishes warning.2. The warning temperature is independent of cable heated length, ambient temperature and use length, which solves the disadvantage of long heating length on low warning temperature, short heating length on high warning temperature, high ambient temperature on low warning temperature, low ambient temperature on high warning temperature.
Description
Technical field
The present invention relates to fire alarm installation, a kind of parallel connection double metal temperature switch 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 parallel connection double metal temperature switch linear temperature-sensing detector, can be according to the situation output resistance signal that is heated, reliability, the sensitivity that can improve detector.
The objective of the invention is to realize: a kind of parallel connection double metal temperature switch linear temperature-sensing detector by following technical proposals, form by temperature sensing cable, microcomputer modulator and terminal resistance, oversheath, it is characterized in that temperature sensing cable: a plurality of double metal temperature switch in parallel are formed between two parallel cable detecting conductors, and the operating temperature of double metal temperature switch is 60 ℃～180 ℃.
Compared with the prior art, the advantage that parallel connection double metal temperature switch linear temperature-sensing detector of the present invention has is: the one, and double metal temperature switch has reversibility, after temperature sensing cable was finished warning, along with the decline of surveying line cable environment temperature, bimetal release automatically restored to original state.The 2nd, be heated length, environment temperature, use length of alarm temperature and cable is irrelevant, overcome the long alarm temperature of length that is heated in the prior art and lacked just height of alarm temperature with regard to low, the length of being heated, the high alarm temperature of environment temperature hangs down alarm temperature with regard to high shortcoming with regard to low, environment temperature.
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. 7 is the structural representation of parallel connection double metal temperature switch linear temperature-sensing detector example 1-example 6;
Embodiment
A kind of parallel connection double metal temperature switch linear temperature-sensing detector, embodiment 1 sees 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 two strip conductors 1, a strip conductor 1 coated with conductive layer 3 wherein, at conductive layer 3 and 1 of another conductor a plurality of double metal temperature switch 2 that are connected in parallel, be coated on together in the insulating sheath 7 then.
The length of temperature sensing cable can be designed to 20m～500m, and the interval of its double metal temperature switch that is set up in parallel 2 can be designed to 0.2m～1m.
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 temperature surpasses the operating temperature of double metal temperature switch 2, resistance reduces between two conductors 1, microcomputer modulator 4 output alarms.
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.
3, plastic-aluminum or compound copper-plastics band, metal forming: thickness is to select for use between 0.01mm～1.0mm, and width is preferred between 5mm～20mm.
4, along putting conductor: specification is at φ 0.01mm～φ 1.0mm
Material can be copper conductor, copper cladding aluminum conductor, iron wire, steel wire, nickel wire, platinum line, stainless steel wire.The conductor skin can be zinc-plated, zinc-plated, copper facing, silver-plated, chromium plating, nickel plating.
5, external sheath layer (general insulating material)
Can be the wherein a kind of of high molecular polymer plastic insulation material.
6, conductive layer: specific volume resistance is 10
-4～10
8Between material (also can have the specific volume resistance of NTC, CTR, ptc characteristics 10
-4～10
8Between material).
Claims (5)
1. parallel connection double metal temperature switch 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), a strip conductor (1) coated with conductive layer (3) wherein, the a plurality of double metal temperature switch (2) that are connected in parallel between conductive layer (3) and bare conductor (1) are coated in the insulating sheath (7) then together; The Design of length of temperature sensing cable becomes 20m～500m, and the interval of its double metal temperature switch that is set up in parallel (2) is designed to 0.2m～1m.
2. a kind of parallel connection double metal temperature switch linear temperature-sensing detector according to claim 1, it is characterized in that: the structure of temperature sensing cable also: adopt two strip conductors (1), a strip conductor (1) coated with conductive layer (3) wherein, then along first conductor of putting except that two strip conductors (1) (6), wrapped again second conductor (5) except that two strip conductors (1), wrapped except that two strip conductors (1) second conductor (5) and bare conductor (1) between a plurality of double metal temperature switch (2) that are connected in parallel, be coated on together then in the insulating sheath (7).
3. a kind of parallel connection double metal temperature switch linear temperature-sensing detector according to claim 1, it is characterized in that: adopt three strip conductors (1), wherein two strip conductors (1) are distinguished coated with conductive layer (3), the a plurality of double metal temperature switch (2) that are connected in parallel between conductive layer (3) that coats respectively outside two strip conductors and bare conductor (1) are coated in the insulating sheath (7) then together; Double metal temperature switch (2) the operating temperature difference that the outer conductive layer (3) that coats respectively of two strip conductors (1) is connect.
4. a kind of parallel connection double metal temperature switch linear temperature-sensing detector according to claim 1, be characterised in that and adopt three bare conductors (1), wherein two strip conductors (1) are coated in the insulating sheath (7) respectively and a plurality of double metal temperature switch (2) that are connected in parallel between another strip conductor (1) then together.
5. a kind of parallel connection double metal temperature switch linear temperature-sensing detector according to claim 1, it is characterized in that: adopt four bare conductors (1), wherein three strip conductors (1) respectively and be connected in parallel between another strip conductor (1) a plurality of double metal temperature switch (2), coated insulation sheath (7) then; Wherein three strip conductors (1) the acting characteristic of the double metal temperature switch that connects (2) all different, each strip conductor (1) connects a kind of double metal temperature switch (2) of acting characteristic, the temperature grade difference of temperature switch (2) in each strip conductor (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710011476A CN101055212B (en) | 2007-05-29 | 2007-05-29 | Parallel connection double metal temperature switch linear temperature-sensing detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710011476A CN101055212B (en) | 2007-05-29 | 2007-05-29 | Parallel connection double metal temperature switch linear temperature-sensing detector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101055212A CN101055212A (en) | 2007-10-17 |
| CN101055212B true CN101055212B (en) | 2010-05-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200710011476A Active CN101055212B (en) | 2007-05-29 | 2007-05-29 | Parallel connection double metal temperature switch linear temperature-sensing detector |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB201211709D0 (en) * | 2012-07-02 | 2012-08-15 | Indumission Ltd | Protecting electrical distribution equipment against overheating |
| CN104198076A (en) * | 2014-08-26 | 2014-12-10 | 安徽蓝德仪表有限公司 | Multifunctional linear temperature sensor |
| CN110160666A (en) * | 2019-05-22 | 2019-08-23 | 中国船舶重工集团公司第七一九研究所 | A kind of radiation resistance multi-point temperature measurement sensor |
| CN117594895B (en) * | 2024-01-18 | 2024-03-29 | 深圳市特普生科技有限公司 | Battery temperature monitoring assembly, battery system and battery temperature monitoring method |
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2007
- 2007-05-29 CN CN200710011476A patent/CN101055212B/en active Active
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| CN101055212A (en) | 2007-10-17 |
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Effective date of registration: 20180119 Address after: Shen Liaodong road Tiexi District of Shenyang City, Liaoning province 110022 47-2 Hongfa international city A block 31 Building No. 1 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 |
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