CN105513293A - Passive temperature difference alarm system - Google Patents
Passive temperature difference alarm system Download PDFInfo
- Publication number
- CN105513293A CN105513293A CN201610121086.2A CN201610121086A CN105513293A CN 105513293 A CN105513293 A CN 105513293A CN 201610121086 A CN201610121086 A CN 201610121086A CN 105513293 A CN105513293 A CN 105513293A
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- resistance
- diode
- electrical connection
- electrically connected
- temperature difference
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/18—Status alarms
- G08B21/182—Level alarms, e.g. alarms responsive to variables exceeding a threshold
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02N—ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
- H02N11/00—Generators or motors not provided for elsewhere; Alleged perpetua mobilia obtained by electric or magnetic means
- H02N11/002—Generators
Abstract
The invention provides a passive temperature difference alarm system, comprising a first heat conducting block, a temperature differential power generator, a second heat conducting block and an alarm circuit. The first heating conducting block is connected with the temperature differential power generator through a temperature differential power generator hot end, the second heat conducting block is connected with the temperature differential power generator through ha temperature differential power generator cold end, the alarm circuit comprises a boost module and an alarm module, a power output end of the temperature differential power generator is electrically connected with the boost module, and the boost module is electrically connected with the alarm module.
Description
[technical field]
The present invention relates to a kind of temperature difference alarm technique, refer in particular to a kind of passive temperature difference warning system.
[background technology]
Along with the continuous progress of science and technology, thermal generator widens its application just gradually, not only in military affairs and high-tech, and also shows good application prospect in civilian.Along with day by day approaching of energy and environment crisis, scientist utilize low-grade with the generating of wasted energy source in increase research dynamics, part achievement in research enters industrialization.
Temperature is the most basic a kind of environmental parameter, and life and the environment temperature of people are closely bound up, and especially in industrial and agricultural production process, need real-time measuring tempeature, the temperature difference etc., measuring method and the device of therefore studying the temperature difference have great importance.Along with the raising that development and the people of modern industrial or agricultural technology require living environment, people also in the urgent need to Detection & Controling temperature, as in air and air-conditioned room, the height of temperature directly affects the healthy of people; On large scale integrated circuit production line, the inappropriate meeting of environment temperature has a strong impact on the quality of product.In process of production, in production quality control and monitoring, equipment on-line fault diagnosis and the aspect such as safeguard protection and economize energy have played vital role to temperature difference alarm technique.Existingly more domestic researchs are had to thermoelectric generation, and have dependent merchandise to come out, and it is mainly studied from energy angle, but carry out the report of monitoring there are no thermo-electric generation.
[summary of the invention]
In view of above content, be necessary to provide a kind of passive temperature difference warning system, utilize thermoelectric generation, the temperature difference in industrial and agricultural production process is converted into the pilot signals such as electricity, light, sound, realizes the passive monitoring of temperature; The electric energy utilizing the temperature difference to produce can realize driving observation circuit to send signal without the need to external power supply function, consider the relation between the efficiency of local temperature difference amplifying technique, thermo-electric generation and the energy consumption of monitoring system, therefore take to use high thermal conductivity materials and special construction profile at key position, in order to heat conduction, heat radiation, increase the temperature difference; Select high-level efficiency thermo-electric generation material; Research and development low energy consumption observation circuit, reduces circuit power consumption, and reduce alarm threshold value, this electrical energy drive observation circuit utilizing the temperature difference to produce sends signal, only has the temperature difference Shi Caihui that acquires a certain degree to send signal, and does not need external power supply to carry out energy supply.
For achieving the above object, the technical solution adopted in the present invention is: a kind of passive temperature difference warning system, described passive temperature difference warning system includes the first heat-conducting block, thermo-electric generation sheet, second heat-conducting block and warning circuit, described first heat-conducting block is connected with described thermo-electric generation sheet by a thermo-electric generation sheet hot junction, described second heat-conducting block is connected with described thermo-electric generation sheet by a thermo-electric generation sheet cold junction, described warning circuit includes boost module and alarm module, the power output end of described thermo-electric generation sheet is electrically connected described boost module, described boost module is electrically connected described alarm module.
Preferably, described boost module includes reversion power supply changeover device, the first diode and the second diode, the power input of described reversion power supply changeover device is electrically connected the power output end of described thermo-electric generation sheet and the anode of described first diode, the storage capacitor positive terminal of described reversion power supply changeover device is by the one first electric capacity electrical connection negative electrode of described first diode and the anode of described second diode, and described second diode cathode is by one second capacity earth.
Preferably, described alarm module includes the 3rd electric capacity, resistor group, the first triode, the second triode, the 3rd triode and loudspeaker, described 3rd electric capacity is in parallel with described resistor group, and the negative electrode of described second diode of first end electrical connection, the second end ground connection; The negative electrode of described second diode of collector electrical connection of described first triode, base stage is electrically connected described resistor group, and grounded emitter; The negative electrode of described second diode of collector electrical connection of described second triode, base stage is electrically connected described resistor group, and grounded emitter; The negative electrode of described second diode of collector electrical connection of described 3rd triode, base stage is electrically connected described resistor group, and grounded emitter.
Preferably, described resistor group includes the first resistance, the second resistance, the 3rd resistance and the 4th resistance, the negative electrode of described second diode of first end electrical connection of described first resistance, the first end of described second resistance of the second end electrical connection; The first end of described 3rd resistance of the second end electrical connection of described second circuit, the first end of described 4th resistance of the second end electrical connection of described 3rd resistance, the second end ground connection of described resistance.
Preferably, the negative electrode of described second diode of collector electrical connection of described first triode, base stage is electrically connected the second end of described first resistance and the first end of described second resistance respectively, and emitter is by one the 5th resistance and one first light emitting diode ground connection.
Preferably, the negative electrode of described second diode of collector electrical connection of described second triode, base stage is electrically connected the second end of described second resistance and the first end of described 3rd resistance respectively, and emitter is by one the 6th resistance and one second light emitting diode ground connection.
Preferably, the negative electrode of described second diode of collector electrical connection of described 3rd triode, base stage is electrically connected the second end of described 3rd resistance and the first end of described 4th resistance respectively, and emitter is electrically connected the positive pole of described loudspeaker by one the 7th resistance.
Hinge structure, the present invention has following beneficial effect:
1, the electrical energy drive warning circuit that designed system of the present invention utilizes the temperature difference to produce sends signal, only has the temperature difference Shi Caihui that acquires a certain degree to send alerting signal, and does not need external power supply to carry out energy supply;
2, the present invention utilizes thermoelectric generation, the temperature difference in industrial and agricultural production process is converted into the pilot signals such as electricity, light, sound, realizes the passive monitoring of temperature;
3, two of thermo-electric generation sheet conductor wires are connected on monitoring, alarming circuit, are conducive to control circui and power supply energy collection;
4, the warning circuit set by the present invention can send sound and light alarm signal, visual strong, safe and reliable.
[accompanying drawing explanation]
Fig. 1 is a structural representation of passive temperature difference warning system in the present invention one better embodiment.
Fig. 2 is a circuit diagram of warning circuit in Fig. 1.
Main element symbol description
| First heat-conducting block 1 | Thermo-electric generation sheet 2 | Second heat-conducting block 3 |
| Warning circuit 6 | Boost module 7 | Alarm module 8 |
| Thermo-electric generation sheet hot junction 4 | Thermo-electric generation sheet cold junction 5 | Reversion power supply changeover device 71 |
| Resistor group 81 | Loudspeaker 82 |
Following embodiment will further illustrate the present invention in conjunction with above-mentioned accompanying drawing.
[embodiment]
Below in conjunction with the accompanying drawings and the specific embodiments, passive temperature difference warning system provided by the invention is described in further detail.
Refer to Fig. 1 and Fig. 2, in the present invention one better embodiment, a kind of passive temperature difference warning system, comprises one first heat-conducting block 1, thermo-electric generation sheet 2,1 second heat-conducting block 3 and a warning circuit 6.Described warning circuit 6 includes a boost module 7 and alarm module 8.In the present embodiment, described warning circuit 6 is low energy consumption observation circuit, and can reduce circuit power consumption, reduces alarm threshold value.
Described first heat-conducting block 1 is connected with thermo-electric generation sheet 2 by a thermo-electric generation sheet hot junction 4, described second heat-conducting block 3 is connected with described thermo-electric generation sheet 2 by a thermo-electric generation sheet cold junction 5, the power output end V of described thermo-electric generation sheet 2 is electrically connected described boost module 7, minus earth.In the present embodiment, described first heat-conducting block 1 and described second heat-conducting block 3 high thermal conductivity materials manufacture, in order to heat conduction, heat radiation, increase the temperature difference.Described thermo-electric generation sheet 2 high-level efficiency thermo-electric generation material manufactures, and described thermo-electric generation sheet hot junction 4 and thermo-electric generation sheet cold junction 5 medium can be solid, liquids and gases.
Described boost module 7 includes reversion power supply changeover device 71, a 1 first diode D1 and one second diode D2.The power input V+ of described reversion power supply changeover device 71 is electrically connected the power output end V of described thermo-electric generation sheet 2 and the anode of described first diode D1, the earth terminal GND ground connection of described reversion power supply changeover device 71, and storage capacitor positive terminal CPA+ is electrically connected the negative electrode of described first diode D1 and the anode of described second diode D2 by one first electric capacity C1, the negative electrode of described second diode D2 is by one second electric capacity C2 ground connection.In the present embodiment, the model of described reversion power supply changeover device 71 is ICL7660, and the model of described first diode D1 and described second diode D2 is IN5822.
Described alarm module 8 includes one the 3rd electric capacity C3, resistor group 81, a 1 first triode Q1, one second triode Q2, one the 3rd triode Q3 and a loudspeaker 82.Described 3rd electric capacity C3 is in parallel with described resistor group 81, and one end connects the negative electrode of described second diode D2, the second end ground connection; The negative electrode of the described second diode D2 of collector electrical connection of described first triode Q1, base stage is electrically connected described resistor group 81, and grounded emitter; The negative electrode of the described second diode D2 of collector electrical connection of described second triode Q2, base stage is electrically connected described resistor group 81, and grounded emitter; The negative electrode of the described second diode D2 of collector electrical connection of described 3rd triode Q3, base stage is electrically connected described resistor group 81, and raises the positive pole of raw device 82 described in emitter electrical connection, the minus earth of described loudspeaker 82.
Described resistor group 81 includes one first resistance R1, one second resistance R2, one the 3rd resistance R3 and the 4th resistance R4, the negative electrode of the described second diode D2 of first end electrical connection of described first resistance R1, the first end of the described second resistance R2 of the second end electrical connection, the first end of the described 3rd resistance R3 of the second end electrical connection of described second circuit R2, the first end of the described 4th resistance R4 of the second end electrical connection of described 3rd resistance R3, the second end ground connection of described resistance R4.
The negative electrode of the described second diode D2 of collector electrical connection of described first triode Q1, base stage is electrically connected second end of described first resistance R1 and the first end of described second resistance R2 respectively, and emitter is by one the 5th resistance R5 and one first light emitting diode D3 ground connection; The negative electrode of the described second diode D2 of collector electrical connection of described second triode Q2, base stage is electrically connected second end of described second resistance R2 and the first end of described 3rd resistance R3 respectively, and emitter is by one the 6th resistance R6 and one second light emitting diode D4 ground connection; The negative electrode of the described second diode D2 of collector electrical connection of described 3rd triode Q3, base stage is electrically connected second end of described 3rd resistance R3 and the first end of described 4th resistance R4 respectively, emitter is electrically connected the positive pole of described loudspeaker 82 by one the 7th resistance R7, the minus earth of described loudspeaker 82.
Principle of work of the present invention is as follows: when described first heat-conducting block 1 and the second heat-conducting block 3 produce the temperature difference, when the temperature difference at described thermo-electric generation sheet 2 two ends reaches predetermined value, thermo-electric generation sheet 2 produces voltage signal, described warning circuit 6 is normally worked, thus make described first light emitting diode D3 and described second light emitting diode D4 luminous, the alerting signal and described loudspeaker 82 is sounded, in addition, warning circuit 6 does not need external power supply to carry out energy supply, reaches the passive monitoring utilizing thermoelectric generation to realize temperature.
Above-mentioned explanation is the detailed description for the better possible embodiments of the present invention, but embodiment is also not used to limit patent claim of the present invention, as added current-limiting resistance etc. above the collector of the present invention first triode Q1, the second triode Q2, the 3rd triode Q3.The equal change completed under technical spirit suggested by all the present invention or modification are changed, and all should belong to the present invention and contain the scope of the claims.
Claims (7)
1. a passive temperature difference warning system, it is characterized in that: described passive temperature difference warning system includes the first heat-conducting block, thermo-electric generation sheet, the second heat-conducting block and warning circuit, described first heat-conducting block is connected with described thermo-electric generation sheet by a thermo-electric generation sheet hot junction, described second heat-conducting block is connected with described thermo-electric generation sheet by a thermo-electric generation sheet cold junction, described warning circuit includes boost module and alarm module, the power output end of described thermo-electric generation sheet is electrically connected described boost module, and described boost module is electrically connected described alarm module.
2. passive temperature difference warning system as claimed in claim 1, it is characterized in that: described boost module includes reversion power supply changeover device, the first diode and the second diode, the power input of described reversion power supply changeover device is electrically connected the power output end of described thermo-electric generation sheet and the anode of described first diode, the storage capacitor positive terminal of described reversion power supply changeover device is by the one first electric capacity electrical connection negative electrode of described first diode and the anode of described second diode, and described second diode cathode is by one second capacity earth.
3. passive temperature difference warning system as claimed in claim 2, it is characterized in that: described alarm module includes the 3rd electric capacity, resistor group, the first triode, the second triode, the 3rd triode and loudspeaker, described 3rd electric capacity is in parallel with described resistor group, and the negative electrode of described second diode of first end electrical connection, the second end ground connection; The negative electrode of described second diode of collector electrical connection of described first triode, base stage is electrically connected described resistor group, and grounded emitter; The negative electrode of described second diode of collector electrical connection of described second triode, base stage is electrically connected described resistor group, and grounded emitter; The negative electrode of described second diode of collector electrical connection of described 3rd triode, base stage is electrically connected described resistor group, and grounded emitter.
4. passive temperature difference warning system as claimed in claim 3, it is characterized in that: described resistor group includes the first resistance, the second resistance, the 3rd resistance and the 4th resistance, the negative electrode of described second diode of first end electrical connection of described first resistance, the first end of described second resistance of the second end electrical connection; The first end of described 3rd resistance of the second end electrical connection of described second circuit, the first end of described 4th resistance of the second end electrical connection of described 3rd resistance, the second end ground connection of described resistance.
5. passive temperature difference warning system as claimed in claim 4, it is characterized in that: the negative electrode of described second diode of collector electrical connection of described first triode, base stage is electrically connected the second end of described first resistance and the first end of described second resistance respectively, and emitter is by one the 5th resistance and one first light emitting diode ground connection.
6. passive temperature difference warning system as claimed in claim 4, it is characterized in that: the negative electrode of described second diode of collector electrical connection of described second triode, base stage is electrically connected the second end of described second resistance and the first end of described 3rd resistance respectively, and emitter is by one the 6th resistance and one second light emitting diode ground connection.
7. passive temperature difference warning system as claimed in claim 4, it is characterized in that: the negative electrode of described second diode of collector electrical connection of described 3rd triode, base stage is electrically connected the second end of described 3rd resistance and the first end of described 4th resistance respectively, and emitter is electrically connected the positive pole of described loudspeaker by one the 7th resistance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610121086.2A CN105513293B (en) | 2016-03-03 | 2016-03-03 | A kind of passive temperature difference warning system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610121086.2A CN105513293B (en) | 2016-03-03 | 2016-03-03 | A kind of passive temperature difference warning system |
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| Publication Number | Publication Date |
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| CN105513293A true CN105513293A (en) | 2016-04-20 |
| CN105513293B CN105513293B (en) | 2018-01-09 |
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| CN201610121086.2A Expired - Fee Related CN105513293B (en) | 2016-03-03 | 2016-03-03 | A kind of passive temperature difference warning system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109469738A (en) * | 2018-12-06 | 2019-03-15 | 康毛娣 | Fire protection warning safety valve |
| CN111783940A (en) * | 2020-06-05 | 2020-10-16 | 广西民族大学 | Method for reducing fire false alarm rate based on GA-BP neural network algorithm |
| CN114324478A (en) * | 2022-01-05 | 2022-04-12 | 慕思健康睡眠股份有限公司 | Liquid leakage detection device and system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109469738A (en) * | 2018-12-06 | 2019-03-15 | 康毛娣 | Fire protection warning safety valve |
| CN109469738B (en) * | 2018-12-06 | 2019-12-13 | 深圳市广安消防装饰工程有限公司 | Fire alarm safety valve |
| CN111783940A (en) * | 2020-06-05 | 2020-10-16 | 广西民族大学 | Method for reducing fire false alarm rate based on GA-BP neural network algorithm |
| CN114324478A (en) * | 2022-01-05 | 2022-04-12 | 慕思健康睡眠股份有限公司 | Liquid leakage detection device and system |
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| CN105513293B (en) | 2018-01-09 |
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