CN101188037A - A linear temperature sensing detector with positive temperature coefficient and negative temperature coefficient feature - Google Patents
A linear temperature sensing detector with positive temperature coefficient and negative temperature coefficient feature Download PDFInfo
- Publication number
- CN101188037A CN101188037A CNA2007101589668A CN200710158966A CN101188037A CN 101188037 A CN101188037 A CN 101188037A CN A2007101589668 A CNA2007101589668 A CN A2007101589668A CN 200710158966 A CN200710158966 A CN 200710158966A CN 101188037 A CN101188037 A CN 101188037A
- Authority
- CN
- China
- Prior art keywords
- temperature coefficient
- ptc
- temperature
- negative
- positive
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000000463 material Substances 0.000 claims abstract description 24
- 239000004020 conductor Substances 0.000 claims abstract description 16
- 229910052751 metal Inorganic materials 0.000 claims abstract description 7
- 239000002184 metal Substances 0.000 claims abstract description 7
- 230000004888 barrier function Effects 0.000 claims description 17
- 239000004033 plastic Substances 0.000 claims description 10
- 229920003023 plastic Polymers 0.000 claims description 10
- 229910052782 aluminium Inorganic materials 0.000 claims description 7
- 150000001875 compounds Chemical class 0.000 claims description 5
- 239000011248 coating agent Substances 0.000 claims description 4
- 238000000576 coating method Methods 0.000 claims description 4
- 238000001125 extrusion Methods 0.000 claims description 4
- 238000009954 braiding Methods 0.000 claims description 3
- 230000011664 signaling Effects 0.000 claims description 3
- 239000011888 foil Substances 0.000 claims description 2
- 238000000034 method Methods 0.000 claims description 2
- 230000000903 blocking effect Effects 0.000 abstract 2
- -1 Maranyl Polymers 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000007747 plating Methods 0.000 description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 239000004793 Polystyrene Substances 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229920005549 butyl rubber Polymers 0.000 description 1
- HGAZMNJKRQFZKS-UHFFFAOYSA-N chloroethene;ethenyl acetate Chemical compound ClC=C.CC(=O)OC=C HGAZMNJKRQFZKS-UHFFFAOYSA-N 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000005038 ethylene vinyl acetate Substances 0.000 description 1
- 229920002313 fluoropolymer Polymers 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 1
- 229920000768 polyamine Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 229920003048 styrene butadiene rubber Polymers 0.000 description 1
Images
Landscapes
- Insulated Conductors (AREA)
Abstract
The invention aims at providing a linear temperature-sensing detector that has positive temperature coefficient and negative temperature coefficient properties, realizes the analog-quantity temperature-fixing multi-level alarming function, and the short-circuit, the circuit-breaking and the power-failure alarming functions, and can be used repeatedly. The linear temperature-sensing detector that has the positive temperature coefficient and the negative temperature coefficient properties comprises a closed-circuit signal collection circuit that consists of a temperature-sensing cable with two ends respectively connected with a microcomputer modulator and a terminal resistor. The invention is characterized in the structure of the temperature-sensing cable that a material blocking layer having the positive temperature coefficient and the negative temperature coefficient properties is arranged between two metal conductors; the microcomputer modulator monitors the blocking layer of the positive temperature coefficient and the negative temperature coefficient properties of the temperature-sensing cable, and judges whether a multi-level alarming signal is outputted according to the designed value of the variation of the temperature and the resistance value.
Description
Technical field
The present invention relates to line-type heat detector, a kind of line-type heat detector with positive temperature coefficient (PTC) and negative temperature coefficient feature.
Background technology
A kind of analog linear temperature-sensing detector, the construction of cable is the plastic packets coating that two conductors all coat NTC characteristic (negative temperature coefficient feature) outward, twist then to after extrusion molding restrictive coating together, temperature rises when being heated, NTC plastics resistance between the conductor reduces, the degree relevant with temperature (being that resistance value is measurable analog quantity) that resistance reduces, analog linear constant temperature or rate-of-rise and fixed temperature detector are to measure the absolute value or the pace of change of resistance, see Figure 12.The shortcoming of this detector is: behind the alarm temperature that detector is heated and temperature arrival is certain, detector can be reported a fire in advance, alarm temperature uses length relevant with the length of being heated with detector, the length of being heated is long more, the alarm temperature value is low more, promptly can not right judgement fire and alarm temperature, make the accuracy of this detector alarm temperature lower.Advantage: can recover, the back detector temperature of reporting to the police arrives the fire alarm temperature, but does not surpass the temperature of being burnt fully, and temperature reduces the back detector and still can work on.
Summary of the invention
The purpose of this invention is to provide a kind of line-type heat detector, realize multistage warning function of analog quantity constant temperature and short circuit, open circuit, the disconnection fault warning function with positive temperature coefficient (PTC) and negative temperature coefficient feature, reusable.
A kind of line-type heat detector with positive temperature coefficient (PTC) and negative temperature coefficient feature, connect and compose the closed circuit signaling Acquisition Circuit with microcomputer modulator and terminal resistance respectively by the temperature sensing cable two ends, the structure that it is characterized in that temperature sensing cable: be provided with positive temperature coefficient (PTC) and negative temperature coefficient feature material barrier layer between two metallic conductors, microcomputer modulator is monitored the positive temperature coefficient (PTC) and the negative temperature coefficient feature material barrier layer of temperature sensing cable, and judges the multistage alerting signal of output according to temperature and change in resistance setting value.
Compared with the prior art the present invention has following advantage:
Because the present invention has adopted the barrier layer with positive temperature coefficient (PTC) and negative temperature coefficient feature on temperature sensing cable, when this barrier layer allows to use high ambient temperature following at temperature sensing cable, barrier layer shows as ptc characteristics, when the heating temperature of temperature sensing cable surpasses when allowing to use high ambient temperature, barrier layer changes negative temperature coefficient feature into by ptc characteristics, sees Figure 13.The present invention has overcome traditional analog amount linear temperature sensitive cable influences the defective of alarm temperature precision because of using length and environment temperature.
Description of drawings
Fig. 1 is a kind of traditional analog linear temperature-sensing panel detector structure synoptic diagram;
Fig. 2, Fig. 3, Fig. 4, be the structural representation of the present invention example 1-example 3;
Fig. 5 is the barrier layer temperature-sensitive effect curve figure that Conventional detectors has only the NTC characteristic;
Fig. 6 is the positive temperature coefficient (PTC) of a kind of line-type heat detector with positive temperature coefficient (PTC) and negative temperature coefficient feature of the present invention and the temperature-sensitive effect curve figure of negative temperature coefficient feature material barrier layer;
Embodiment
A kind of line-type heat detector with positive temperature coefficient (PTC) and negative temperature coefficient feature, example 1 is seen Fig. 2, being 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 constitutes, the structure that it is characterized in that temperature sensing cable: two metallic conductor 1 parallel distances equate to be arranged on and a kind ofly have in positive temperature coefficient (PTC) and the negative temperature coefficient feature material barrier layer 2, when the temperature sensing cable resistance that has positive temperature coefficient (PTC) and negative temperature coefficient feature material barrier layer 2 between two metallic conductors 1 of being heated is positive temperature coefficient (PTC), when the temperature sensing cable heating temperature surpasses when allowing to use high ambient temperature, barrier layer 2 changes negative temperature coefficient feature into by ptc characteristics, when the resistance resistance is reduced to a range of set value, judge the multistage alerting signal of output by microcomputer modulator 4, and short circuit, open circuit, the output of disconnection fault alerting signal.When the temperature sensing cable temperature returns to when allowing to use high ambient temperature following, spacer material layer 2 resistances between two metallic conductors 1 raise, and temperature sensing cable returns to normal operating conditions again, so can reuse after reporting to the police.
Two metallic conductors 1 also can be multicores in the structure of the foregoing description 1～2 temperature sensing cable, with identical method setting.Outer extrusion molding external sheath layer of temperature sensing cable or braiding external sheath layer 3 can also coat one deck earlier in the coating external sheath layer 3 and cover plastic-aluminum or compound copper-plastics band or metal forming shielding material layer 5.
Below be the present invention used properties of materials and proportioning explanation:
1, the material specification of metallic conductor 1 is between Φ 0.2～3.0mm, can select the alloy material of steel wire, copper cash, iron wire, nickel wire, aluminum steel, platinum line, copper-clad aluminum conductor, ladle aluminum steel, 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.
2, the material of positive temperature coefficient (PTC) and negative temperature coefficient feature material barrier layer 2 can select for use butyl rubber, potassium base styrene-butadiene rubber and above-mentioned material by mixing conductive powder body or the semiconductor powder is made, and thickness is preferred between 0.01～3mm.
Positive temperature coefficient (PTC) and negative temperature coefficient feature tr pt A can be preferred between 40 ℃～100 ℃.
3, aluminium-plastic tape or compound copper-plastics band or metal forming clad 5 are versatile material.Width is at 5～25mm, and thickness is preferred between 0.01～1.0mm.
4, external sheath layer 3 materials can be selected Polyvinylchloride, tygon, fluoroplastic, Maranyl, polyamine fat plastics, polypropylene, polystyrene, haloflex, ethylene-vinyl acetate copolymer for use.Extrusion molding external sheath layer thickness is preferred between 0.1～2.0mm, and braiding external sheath layer plastic monofilament or metal filament diameter are preferred between 0.01～0.5mm.
Claims (6)
1. a kind of line-type heat detector according to claim 1 with positive temperature coefficient (PTC) and negative temperature coefficient feature, the structure that it is characterized in that temperature sensing cable: what it adopted is that two metallic conductors (1) coat a kind of have positive temperature coefficient (PTC) and negative temperature coefficient feature material barrier layer (2) respectively, parallel then or stranded or be intertwined, pitch stranded or that twine is preferred between 20mm～200mm.
2. line-type heat detector with temperature coefficient and negative temperature coefficient feature, 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 and constitute, it is characterized in that the structure of temperature sensing cable: what it adopted is to be provided with a kind of have positive temperature coefficient (PTC) and negative temperature coefficient feature material barrier layer (2) between two metallic conductors (1).
3. a kind of line-type heat detector with positive temperature coefficient (PTC) and negative temperature coefficient feature according to claim 1, it is characterized in that the structure of temperature sensing cable: two metallic conductors (1) also can be multicores, with identical method setting.
4. a kind of outer all right extrusion molding external sheath layer of line-type heat detector temperature sensing cable or braiding external sheath layer (3) according to claim 1 with positive temperature coefficient (PTC) and negative temperature coefficient feature.Coat in the external sheath layer (3) and can also cover plastic-aluminum or compound copper-plastics band or metal forming shielding material layer (5) by elder generation's coating one deck.
5. a kind of line-type heat detector according to claim 1 with positive temperature coefficient (PTC) and negative temperature coefficient feature, the structure that it is characterized in that temperature sensing cable: what it adopted is that a metallic conductor 1 coats positive temperature coefficient (PTC) and negative temperature coefficient feature material barrier layer (2), coat one deck again and cover plastic-aluminum or the compound copper-plastics band or the metal foil bed of material (5), the outer one deck external sheath layer (3) that coats again of layer.
6. a kind of line-type heat detector with positive temperature coefficient (PTC) and negative temperature coefficient feature according to claim 1 is characterized in that positive temperature coefficient (PTC) and negative temperature coefficient feature tr pt A can be preferred between 40 ℃～100 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101589668A CN101188037A (en) | 2007-12-18 | 2007-12-18 | A linear temperature sensing detector with positive temperature coefficient and negative temperature coefficient feature |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101589668A CN101188037A (en) | 2007-12-18 | 2007-12-18 | A linear temperature sensing detector with positive temperature coefficient and negative temperature coefficient feature |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101188037A true CN101188037A (en) | 2008-05-28 |
Family
ID=39480407
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007101589668A Pending CN101188037A (en) | 2007-12-18 | 2007-12-18 | A linear temperature sensing detector with positive temperature coefficient and negative temperature coefficient feature |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101188037A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101996466A (en) * | 2010-11-11 | 2011-03-30 | 李萍 | Line-type temperature sensor |
| CN107328485A (en) * | 2017-07-06 | 2017-11-07 | 厦门安斯通微电子技术有限公司 | A kind of optional TEMP chip of single-chip integration Positive and Negative Coefficient Temperature |
| CN107978121A (en) * | 2017-12-29 | 2018-05-01 | 江苏中实电子有限公司 | A kind of reusable line-type heat detector and its alarm method |
-
2007
- 2007-12-18 CN CNA2007101589668A patent/CN101188037A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101996466A (en) * | 2010-11-11 | 2011-03-30 | 李萍 | Line-type temperature sensor |
| CN107328485A (en) * | 2017-07-06 | 2017-11-07 | 厦门安斯通微电子技术有限公司 | A kind of optional TEMP chip of single-chip integration Positive and Negative Coefficient Temperature |
| CN107978121A (en) * | 2017-12-29 | 2018-05-01 | 江苏中实电子有限公司 | A kind of reusable line-type heat detector and its alarm method |
| CN107978121B (en) * | 2017-12-29 | 2024-02-09 | 江苏中实电子有限公司 | Reusable linear temperature-sensing fire detector and alarm method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101017594A (en) | Multifunctional cable linear temperature sensing fire detector | |
| AU2007211100A1 (en) | An unrecoverable line-type temperature sensitive detector having short-circuit fault alarm function | |
| CN101046414B (en) | Composite on-off and analog quantity sensing linear temperature detector in two-chip structure | |
| CN101188037A (en) | A linear temperature sensing detector with positive temperature coefficient and negative temperature coefficient feature | |
| CN101368850A (en) | Multi-temperature impedance characteristic sensing cable and temperature-sensitive detector using same | |
| CN101055212B (en) | Parallel connection double metal temperature switch linear temperature-sensing detector | |
| CN104484973A (en) | Composite cable type heat fire detector | |
| CN100495458C (en) | A non-recoverable cable type constant temperature fire detector | |
| CN1949284A (en) | Linear temp. sensing detector based on thermocouple principle | |
| CN100588921C (en) | Recoverable cable type linear heat detector | |
| CN101046415B (en) | Linear temperature sensing detector with both PTC and NTC characteristics | |
| CN101216979A (en) | A restorable multistage alarming line style heat detector based on bimetal temperature switch | |
| CN101290703B (en) | Multi-loop sectional monitoring temperature-sensing electrical signal cable type linear temperature-sensitive detector | |
| CN101246629A (en) | Switch double-temperature alarm short-circuit fault reporting linear detector and alarm method | |
| CN101188038A (en) | A separated recoverable multi-level alarming linear temperature sensing detector | |
| CN201037793Y (en) | Line-type temperature-sensing detector with PTC and NTC characteristic | |
| CN101055211B (en) | Melted NTC property resumable temperature-sensing detector | |
| CN101320506A (en) | Series connection separated recoverable linear temperature-sensitive detector | |
| CN101685570A (en) | Restorable linear heat detector of normally open type rate-of-rise and fixed temperature switches connected in parallel | |
| CN101276505A (en) | Switch quantity composite reparable cable-type line-type heat fire detector | |
| CN201262774Y (en) | Linetype heat detector for multi-loop sectional monitoring temperature-sensing electrical signal | |
| CN101050983B (en) | Double temperature warning linear temperature-sensing detector | |
| CN101136128A (en) | Beyond retrieve type single temperature alarming functional failure output linetype temperature-sensitive detector | |
| CN101149864A (en) | Double temperature alarming irrecoverable type line type temperature-sensing detector | |
| CN201083553Y (en) | Two-core structure switch signal, analog combined linear temperature-sensitive detector |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |