CN101123026B - A linear temperature susceptibility fire detector with electronic switch component - Google Patents
A linear temperature susceptibility fire detector with electronic switch component Download PDFInfo
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- CN101123026B CN101123026B CN2007100583607A CN200710058360A CN101123026B CN 101123026 B CN101123026 B CN 101123026B CN 2007100583607 A CN2007100583607 A CN 2007100583607A CN 200710058360 A CN200710058360 A CN 200710058360A CN 101123026 B CN101123026 B CN 101123026B
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- 239000004020 conductor Substances 0.000 claims description 37
- 230000004888 barrier function Effects 0.000 claims description 10
- 230000000087 stabilizing effect Effects 0.000 claims description 9
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 229910001285 shape-memory alloy Inorganic materials 0.000 claims description 3
- 230000035945 sensitivity Effects 0.000 abstract description 4
- 238000005070 sampling Methods 0.000 abstract 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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Abstract
The invention discloses a line-type temperature-sensitive fire detector with an electronic switch component, and the detector comprises a line-type temperature sensing element, a converting box connected with one end of the line-type temperature sensing element and used for real-time detecting temperature of the line-type temperature sensing element or the alarm electric parameters (or sampling values) and an electronic switch component connected with the other end of the line-type temperature sensing element. The line-type temperature-sensitive fire detector with the electronic switch component can detect whether open circuit occurs in the line-type temperature sensing element through using the electronic switch component, and determines whether to give out a fire alarm signal through identifying whether the electric parameter (or sampling value) detected by the converting box exceeds the alarm threshold when the electric switch component is open. Such design not only enables detecting and determining status of the line-type temperature sensing element at any time, but also eliminates the problems of low alarm reliability and low sensitivity in case of open circuit.
Description
Technical field
The present invention relates to a kind of line-type heat detector, particularly relate to a kind of line-type heat detector that has electronic switch assembly.
Background technology
Line-type heat detector with NTC (negative temperature coefficient) characteristic commonly used at present is a kind of broad-spectrum fire detector; Its mainly by linear temperature sensor with NTC characteristic, be connected an end of linear temperature sensor; Can be in real time the temperature or the warning electrical quantity (or sampled value) of linear temperature sensor be detected; And send the boxcar of fire alarm signal and be connected the other end of linear temperature sensor, and the terminal resistance that linear temperature sensor works the supervision effect of opening circuit is constituted according to the size of temperature or warning electrical quantity (or sampled value).Fig. 1 is linear temperature sensor transverse sectional view in the line-type heat detector with NTC characteristic of prior art.As shown in Figure 1, the linear temperature sensor of this prior art comprises that two parallel detecting conductors that are provided with 1,2 are arranged on the NTC characteristic barrier layer 3 between the detecting conductor 1,2 with walking abreast.Fig. 2 is the line-type heat detector schematic equivalent circuit with NTC characteristic of prior art.Horizontal line 1 expression detecting conductor 1 among the figure, horizontal line 2 expression detecting conductors 2, variable resistor R representes NTC characteristic barrier layer 3, R1 representes that terminal resistance 4,5 then representes boxcar.When linear temperature sensor on the detector is heated and temperature when raising; Be positioned at two detecting conductors 1 on it; The resistance value R of the NTC characteristic barrier layer 3 between 2 will diminish, and boxcar 5 can detect this variation immediately, in case boxcar 5 detects detecting conductor 1; Sampled value between 2 (being electrical quantity) reaches the alarming threshold value (this value is corresponding to alarm temperature) that detector is set, and it will send fire alarm signal immediately; Under normal circumstances, if linear temperature sensor opens circuit or coming off appears in terminal resistance 4, boxcar 5 will send failure alarm signal immediately.But; There is following point in the line-type heat detector with NTC characteristic of this prior art: though when linear temperature sensor open circuit or terminal resistance 4 when occurring coming off boxcar 5 can send failure alarm signal; But under open circuit situation appears in linear temperature sensor; In case breaking out of fire; This moment, whether detector still determined whether to send fire alarm signal above the alarming threshold value of setting under the original non-open circuit situation according to the sampled value of linear temperature sensor; The heating temperature that will occur linear temperature sensor like this surpasses the situation of just reporting a fire behind the alarm temperature, thereby greatly reduces the warning reliability and the sensitivity of detector.
Summary of the invention
In order to address the above problem, to the object of the present invention is to provide and a kind ofly can judge the state of linear temperature sensor at any time, and can improve the line-type heat detector that has electronic switch assembly of warning reliability and sensitivity.
In order to achieve the above object; The line-type heat detector that has electronic switch assembly provided by the invention comprises linear temperature sensor and is connected an end of linear temperature sensor, the boxcar that can be in real time the temperature or the warning electrical quantity (or sampled value) of linear temperature sensor be detected; Wherein linear temperature sensor comprises that two parallel detecting conductors that are provided with and parallel are arranged on the NTC characteristic barrier layer between the detecting conductor; The described line-type heat detector that has electronic switch assembly also comprises the electronic switch assembly between two detecting conductors that are serially connected in linear temperature sensor one end.
The line-type heat detector that has electronic switch assembly provided by the invention comprises linear temperature sensor and is connected an end of linear temperature sensor, the boxcar that can be in real time the temperature or the warning electrical quantity (or sampled value) of linear temperature sensor be detected; Wherein linear temperature sensor comprises two parallel detecting conductors that are provided with and parallelly is arranged on NTC characteristic barrier layer and the fused insulating layer between the detecting conductor, and in the detecting conductor at least one be elastic conductor or memory alloy wire; The described line-type heat detector that has electronic switch assembly also comprises the electronic switch assembly between two detecting conductors that are serially connected in linear temperature sensor one end.
One in described two detecting conductors is thermocouple wire.
Described electronic switch assembly is the relay-type switch module, and the control mode that opens and closes of relay is controlled in wireless mode or wired control mode.
Described electronic switch assembly is the diode-type switch module, and the control mode that opens and closes of diode is controlled by the electric power polarity conversion that is added in the diode two ends.
Described electronic switch assembly is a voltage stabilizing diode type switch module, and the control mode that opens and closes of voltage stabilizing diode is controlled by the supply voltage size that is added in the voltage stabilizing diode two ends.
Described electronic switch assembly is the triode type switch module, and the control mode that opens and closes of triode is controlled by the voltage swing that is added in transistor base.
Whether the closure of electronic switch assembly of can utilizing the line-type heat detector that has electronic switch assembly provided by the invention detects linear temperature sensor and occurs opening circuit; Whether the electrical quantity (or sampled value) that detects according to boxcar under the electronic switch assembly opening simultaneously surpasses alarming threshold value determines whether to send fire alarm signal; Like this not only can be at any time the state of linear temperature sensor be detected and judges, but also can eliminate warning reliability and the lower problem of sensitivity that occurs under the open circuit situation.
Description of drawings
Fig. 1 is linear temperature sensor transverse sectional view in the line-type heat detector with NTC characteristic of prior art.
Fig. 2 is the line-type heat detector schematic equivalent circuit with NTC characteristic of prior art.
Fig. 3 is the line-type heat detector one example structure synoptic diagram that has electronic switch assembly provided by the invention.
Fig. 4 is another example structure synoptic diagram of line-type heat detector that has electronic switch assembly provided by the invention.
Embodiment
Below in conjunction with accompanying drawing and specific embodiment the line-type heat detector that has electronic switch assembly provided by the invention is elaborated.The parts identical with prior art adopt identical drawing reference numeral.
Embodiment 1:
As shown in Figure 3; The line-type heat detector that has electronic switch assembly provided by the invention comprises linear temperature sensor, is connected an end of linear temperature sensor, can be in real time to temperature or warning electrical quantity (or sampled value) boxcar 5 that detects and the electronic switch assembly 8 that is connected the linear temperature sensor other end of linear temperature sensor; Wherein linear temperature sensor comprises two parallel detecting conductors 1 that are provided with; 2 with the parallel detecting conductor 1 that is arranged on; NTC characteristic barrier layer 3 between 2, electronic switch assembly 8 then are serially connected between two detecting conductors 1,2 of the linear temperature sensor other end.Its principle of work is following:
1. alternately controlled the unlatching and closure of electronic switch assembly 8 by boxcar 5, promptly the output contact of electronic switch assembly 8 alternately is in and opens and closure state, and the time of unlatching and closure can freely be provided with.
2. when electronic switch assembly 8 is in closure state, boxcar 5 detects the resistance value of linear temperature sensors, when measure resistance when excessive (greater than the line body resistance of detecting conductor 1,2 and resistance value), detector sends failure alarm signal.
3. when electronic switch assembly 8 was in opening, boxcar 5 detected the resistance value of linear temperature sensor, and when the measurement resistance surpassed the alarming threshold value of setting under the open circuit situation, detector sent the fire alarm signal.
Embodiment 2:
As shown in Figure 4; The line-type heat detector that has electronic switch assembly that present embodiment provides comprises linear temperature sensor, is connected an end of linear temperature sensor, can be in real time to temperature or warning electrical quantity (or sampled value) boxcar 5 that detects and the electronic switch assembly 8 that is connected the linear temperature sensor other end of linear temperature sensor; Wherein linear temperature sensor comprises two parallel detecting conductors that are provided with 1,2 and the parallel NTC characteristic barrier layers 3 and fused insulating layers 7 that are arranged between the detecting conductor 1,2, and in the detecting conductor 1,2 at least one be elastic conductor or memory alloy wire.The line-type heat detector that has electronic switch assembly that present embodiment provides is except that the structure of linear temperature sensor is different with a last embodiment, and other structure and principle of work are identical with a last embodiment.
Embodiment 3:
Present embodiment is with detecting conductor 1 on the linear temperature sensor among embodiment 1 and the embodiment 2; One in 2 is adopted the thermocouple wire material to process; Constitute interim thermopair with another root; Thereby form the linear temperature sensor with thermocouple characteristic, other structure and principle of work are then identical with above-mentioned two embodiment.
Described electronic switch assembly 8 can be following several kinds of modes, but is not limited thereto:
1) relay-type switch module, the control mode that opens and closes of relay can be controlled in wireless mode or wired control mode;
2) diode-type switch module, the opening and closing control mode and can control of diode by the electric power polarity conversion that is added in the diode two ends;
3) voltage stabilizing diode type switch module, the opening and closing control mode and can control of voltage stabilizing diode by the supply voltage size that is added in the voltage stabilizing diode two ends;
4) triode type switch module, the opening and closing control mode and can control of triode by the voltage swing that is added in transistor base.
In addition, described electronic switch assembly 8 can also cause boxcar 5 and is set together with boxcar 5 through lead.
Claims (8)
1. line-type heat detector that has electronic switch assembly; It comprises linear temperature sensor and is connected an end of linear temperature sensor, the boxcar (5) that can be in real time the temperature or the warning electrical quantity of linear temperature sensor be detected; Wherein linear temperature sensor comprises that two parallel detecting conductors (1,2) that are provided with are arranged on the NTC characteristic barrier layer (3) between the detecting conductor (1,2) with walking abreast; It is characterized in that: the described line-type heat detector that has electronic switch assembly also comprises two detecting conductors (1 that are serially connected in the linear temperature sensor other end; 2) electronic switch assembly between (8), boxcar (5) alternately detects the resistance value of linear temperature sensor when electronic switch assembly (8) open and close through the open and close of alternately controlling electronic switch assembly (8).
2. line-type heat detector that has electronic switch assembly; It comprises linear temperature sensor and is connected an end of linear temperature sensor, the boxcar (5) that can be in real time the temperature or the warning electrical quantity of linear temperature sensor be detected; Wherein linear temperature sensor comprises two parallel detecting conductors (1,2) that are provided with and parallelly is arranged on NTC characteristic barrier layer (3) and the fused insulating layer (7) between the detecting conductor (1,2), and in the detecting conductor (1,2) at least one be elastic conductor; It is characterized in that: the described line-type heat detector that has electronic switch assembly also comprises two detecting conductors (1 that are serially connected in the linear temperature sensor other end; 2) electronic switch assembly between (8), boxcar (5) alternately detects the resistance value of linear temperature sensor when electronic switch assembly (8) open and close through the open and close of alternately controlling electronic switch assembly (8).
3. line-type heat detector that has electronic switch assembly; It comprises linear temperature sensor and is connected an end of linear temperature sensor, the boxcar (5) that can be in real time the temperature or the warning electrical quantity of linear temperature sensor be detected; Wherein linear temperature sensor comprises two parallel detecting conductors (1,2) that are provided with and parallelly is arranged on NTC characteristic barrier layer (3) and the fused insulating layer (7) between the detecting conductor (1,2), and in the detecting conductor (1,2) at least one be memory alloy wire; It is characterized in that: the described line-type heat detector that has electronic switch assembly also comprises two detecting conductors (1 that are serially connected in the linear temperature sensor other end; 2) electronic switch assembly between (8), boxcar (5) alternately detects the resistance value of linear temperature sensor when electronic switch assembly (8) open and close through the open and close of alternately controlling electronic switch assembly (8).
4. according to claim 1 or the 2 or 3 described line-type heat detectors that have electronic switch assembly, it is characterized in that: one in described two detecting conductors (1,2) is thermocouple wire.
5. according to claim 1 or the 2 or 3 described line-type heat detectors that have electronic switch assembly; It is characterized in that: described electronic switch assembly (8) is the relay-type switch module, and the control mode that opens and closes of relay is controlled in wireless mode or wired control mode.
6. according to claim 1 or the 2 or 3 described line-type heat detectors that have electronic switch assembly; It is characterized in that: described electronic switch assembly (8) is the diode-type switch module, and the control mode that opens and closes of diode is controlled by the electric power polarity conversion that is added in the diode two ends.
7. according to claim 1 or the 2 or 3 described line-type heat detectors that have electronic switch assembly; It is characterized in that: described electronic switch assembly (8) is a voltage stabilizing diode type switch module, and the control mode that opens and closes of voltage stabilizing diode is controlled by the supply voltage size that is added in the voltage stabilizing diode two ends.
8. according to claim 1 or the 2 or 3 described line-type heat detectors that have electronic switch assembly; It is characterized in that: described electronic switch assembly (8) is the triode type switch module, and the control mode that opens and closes of triode is controlled by the voltage swing that is added in transistor base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007100583607A CN101123026B (en) | 2007-07-23 | 2007-07-23 | A linear temperature susceptibility fire detector with electronic switch component |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007100583607A CN101123026B (en) | 2007-07-23 | 2007-07-23 | A linear temperature susceptibility fire detector with electronic switch component |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009101479370A Division CN101656010B (en) | 2007-07-23 | 2007-07-23 | Linear temperature sensing fire detector with electronic switch assembly and alarming method thereof |
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| Publication Number | Publication Date |
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| CN101123026A CN101123026A (en) | 2008-02-13 |
| CN101123026B true CN101123026B (en) | 2012-06-13 |
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| CN2007100583607A Active CN101123026B (en) | 2007-07-23 | 2007-07-23 | A linear temperature susceptibility fire detector with electronic switch component |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102214384B (en) * | 2011-04-08 | 2012-10-17 | 李萍 | Line type temperature sensor of terminal with gas discharge tube |
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Owner name: SURELAND INDUSTRIAL FIRE SAFETY CO., LTD Free format text: FORMER OWNER: ZHANG WEISHE Effective date: 20090717 |
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Effective date of registration: 20090717 Address after: BeiJing Capital Airport South Industrial Zone Banbidian Road No. 22 Lee post encoding: 101304 Applicant after: Sureland Industry Fire-Fighting Co., Ltd. Address before: The construction of the road in the middle of Xiqing Yangliuqing town, Tianjin District 55 post encoding: 300380 Applicant before: Zhang Wei Co-applicant before: Li Gangjin |
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Denomination of invention: A linear temperature susceptibility fire detector with electronic switch component Effective date of registration: 20130802 Granted publication date: 20120613 Pledgee: Bank of America Ltd. Shanghai branch Pledgor: Sureland Industry Fire-Fighting Co., Ltd. Registration number: 2012990000591 |
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Application publication date: 20080213 Assignee: Shouan industry fire fighting equipment (Hebei) Co., Ltd. Assignor: Sureland Industry Fire-Fighting Co., Ltd. Contract record no.: 2014110000078 Denomination of invention: A linear temperature susceptibility fire detector with electronic switch component Granted publication date: 20120613 License type: Exclusive License Record date: 20141224 |
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Date of cancellation: 20171114 Granted publication date: 20120613 Pledgee: Bank of America Ltd. Shanghai branch Pledgor: Sureland Industry Fire-Fighting Co., Ltd. Registration number: 2012990000591 |
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