CN103728040A - Device for detecting temperature of inside of switch cabinet on basis of thermal couple - Google Patents
Device for detecting temperature of inside of switch cabinet on basis of thermal couple Download PDFInfo
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- CN103728040A CN103728040A CN201310568255.3A CN201310568255A CN103728040A CN 103728040 A CN103728040 A CN 103728040A CN 201310568255 A CN201310568255 A CN 201310568255A CN 103728040 A CN103728040 A CN 103728040A
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- thermopair
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- switch cubicle
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Abstract
The invention discloses a device for detecting the temperature of the inside of a switch cabinet on the basis of a thermal couple. The device comprises the thermal couple and a measurement circuit connected to the thermal couple. An amplifying circuit, an A/D conversion circuit and a display circuit are sequentially connected to the measurement circuit, the output end of an amplifier is connected with a control drive circuit, the control drive circuit is connected with a signal emission module, and the display circuit comprises a display drive control circuit and a displayer connected to a display control circuit. The device has the advantages that by means of the thermo-electric effect of the thermal couple, the temperature of the inside of the switch cabinet is monitored, the circuits are simple in structure, the thermal couple is directly in contact with an object to be measured and the temperature detection precision is high.
Description
Technical field
The present invention relates to switch cubicle monitoring field, relate in particular temperature-detecting device in a kind of switch cubicle based on thermopair.
Background technology
Along with the sustainable growth of China's economy, the sustainable growth of electricity supply has brought serial safety problem to grid equipment.Switch cubicle is a kind of important electric equipment, is undertaking the vital role that closes and put out power circuit, protection system safety.Cause in switch cubicle the reason of temperature rise to have a variety of, for example: loose contact, harmonic effects or load exceed standard.Temperature rise in switch cubicle, very easily causes the damage of equipment in cabinet, and interruption maintenance will bring serious impact to Utilities Electric Co..For the monitoring of the temperature rise in switch cubicle, be an important job.
Summary of the invention
The invention provides temperature-detecting device in a kind of switch cubicle based on thermopair, it utilizes the thermoelectric effect of thermopair to monitor the temperature in switch cubicle, and its circuit structure is simple, and thermopair directly contacts with measured object, high to the accuracy of detection of temperature.
For solving above-mentioned technical matters, the present invention by the following technical solutions:
Temperature-detecting device in a kind of switch cubicle based on thermopair, it comprises thermopair and is connected to the metering circuit on thermopair, in described metering circuit, be connected with amplifying circuit, A/D change-over circuit and display circuit in turn, on the output terminal of described amplifier, be connected with control driving circuit, on described control driving circuit, be connected with signal emission module, described display circuit comprises display driver control apparatus and is connected to the display on display control circuit.
Further technical scheme is:
As preferably, described metering circuit comprises filtering circuit and logic processing circuit.
As preferably, described amplifying circuit is multistage amplifier circuit.
Further, described amplifier comprises the composite amplifier that two triodes form.
As preferably, described signal emission module is wireless signal transmitting device.
Further, described control driving circuit comprises chip MSP430 and is connected to the clock circuit on chip MSP430.
The ultimate principle of thermocouple temperature measurement is that the material conductor of two kinds of heterogeneities forms closed loop, when two ends exist thermograde, just has electric current and pass through in loop, now between two ends, just has electromotive force-thermopower.
Compared with prior art, the invention has the beneficial effects as follows:
1, of the present invention simple in structure, be easy to realize.
2, the present invention utilizes the thermoelectric effect of thermopair to realize, the temperature of the measured object in switch cubicle to be detected, and thermopair directly contacts with measured object, high to the accuracy of detection of temperature.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.
Fig. 1 is theory diagram of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the present invention is further illustrated.Embodiments of the present invention include but not limited to the following example.
[embodiment]
Temperature-detecting device in a kind of switch cubicle based on thermopair as shown in Figure 1, it comprises thermopair and is connected to the metering circuit on thermopair, in described metering circuit, be connected with amplifying circuit, A/D change-over circuit and display circuit in turn, on the output terminal of described amplifier, be connected with control driving circuit, on described control driving circuit, be connected with signal emission module, described display circuit comprises display driver control apparatus and is connected to the display on display control circuit.
For fear of eliminating the impact of undesired signal on subsequent conditioning circuit, described metering circuit comprises filtering circuit and logic processing circuit.Utilize filtering circuit to eliminate the impact of disturbing.
In order to improve the precision of detection, described amplifying circuit is multistage amplifier circuit.Utilize multistage amplifier circuit to carry out multistage amplification to the magnitude of voltage detecting, can improve the detection to temperature subtle change, can improve the detectable sensitivity of precision of detection.
Described amplifier comprises the composite amplifier that two triodes form.The composite amplifier that adopts triode to form, its switching speed is fast, enlargement factor is large, driving force is strong and it is integrated to be easy to, and plurality of advantages can improve overall performance of the present invention.
Described signal emission module is wireless signal transmitting device.Adopt wireless signal transmitting module to launch wireless signal, can realize the remote monitoring to temperature, adopt wireless mode, can avoid the loaded down with trivial details of wiring.
In order to make performance of the present invention more superior, described control driving circuit comprises chip MSP430 and is connected to the clock circuit on chip MSP430.Chip MSP430 is the processor of super low-power consumption, and stable phase is high, and it can reduce overall power of the present invention.
The present invention utilizes the thermoelectric effect of thermopair, utilize metering circuit to measure the electromotive force of thermopair, and through amplifying circuit, measurement result is amplified, signal after amplification is converted to the digital signal that is applicable to display circuit processing after A/D change-over circuit is processed, show again, so that people are carried out to on-site supervision to temperature.Amplifying circuit signal after treatment enters control driving circuit, and control driving circuit is transmitted to remote monitoring center by temperature information by signal emission module again and realizes remote monitoring.
Be as mentioned above embodiments of the invention.The present invention is not limited to above-mentioned embodiment, and anyone should learn the structural change of making under enlightenment of the present invention, and every have identical or close technical scheme with the present invention, within all falling into protection scope of the present invention.
Claims (6)
1. temperature-detecting device in the switch cubicle based on thermopair, it is characterized in that: it comprises thermopair and is connected to the metering circuit on thermopair, in described metering circuit, be connected with amplifying circuit, A/D change-over circuit and display circuit in turn, on the output terminal of described amplifier, be connected with control driving circuit, on described control driving circuit, be connected with signal emission module, described display circuit comprises display driver control apparatus and is connected to the display on display control circuit.
2. temperature-detecting device in a kind of switch cubicle based on thermopair according to claim 1, is characterized in that: described metering circuit comprises filtering circuit and logic processing circuit.
3. temperature-detecting device in a kind of switch cubicle based on thermopair according to claim 1, is characterized in that: described amplifying circuit is multistage amplifier circuit.
4. temperature-detecting device in a kind of switch cubicle based on thermopair according to claim 3, is characterized in that: described amplifier comprises the composite amplifier that two triodes form.
5. temperature-detecting device in a kind of switch cubicle based on thermopair according to claim 1, is characterized in that: described signal emission module is wireless signal transmitting device.
6. temperature-detecting device in a kind of switch cubicle based on thermopair according to claim 5, is characterized in that: described control driving circuit comprises chip MSP430 and is connected to the clock circuit on chip MSP430.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310568255.3A CN103728040A (en) | 2013-11-15 | 2013-11-15 | Device for detecting temperature of inside of switch cabinet on basis of thermal couple |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310568255.3A CN103728040A (en) | 2013-11-15 | 2013-11-15 | Device for detecting temperature of inside of switch cabinet on basis of thermal couple |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103728040A true CN103728040A (en) | 2014-04-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310568255.3A Pending CN103728040A (en) | 2013-11-15 | 2013-11-15 | Device for detecting temperature of inside of switch cabinet on basis of thermal couple |
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| CN (1) | CN103728040A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105150273A (en) * | 2015-09-28 | 2015-12-16 | 大连理工大学 | Wireless temperature measuring system and method for carbon fiber composite drilling |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4211113A (en) * | 1978-04-05 | 1980-07-08 | Hawker Siddeley Dynamics Engineering, Ltd. | Temperature measurement |
| CN101055209A (en) * | 2007-05-31 | 2007-10-17 | 淄博惠工仪器有限公司 | Switch cabinet contact temperature monitoring and alarming system |
| CN201096542Y (en) * | 2007-07-05 | 2008-08-06 | 保定市屹高电气有限公司 | Optical fibre type temperature on-line monitoring system |
| CN102004007A (en) * | 2010-10-15 | 2011-04-06 | 中国计量学院 | Instrument and method for improving temperature regulation accuracy of electric iron temperature controller |
| CN102297730A (en) * | 2011-05-23 | 2011-12-28 | 国网电力科学研究院 | Multi-channel general temperature measurement module |
| CN102410883A (en) * | 2011-11-16 | 2012-04-11 | 江苏正佰电气有限公司 | Switching equipment temperature rise detection system |
| CN202793609U (en) * | 2012-08-07 | 2013-03-13 | 浙江卓安自动化控制设备有限公司 | Online temperature measuring device of multifunctional switch cabinet |
| CN103207026A (en) * | 2013-03-28 | 2013-07-17 | 无锡市崇安区科技创业服务中心 | Temperature monitoring system for high voltage switch cabinet |
| CN203561453U (en) * | 2013-11-15 | 2014-04-23 | 成都市宏山科技有限公司 | Switch cabinet temperature detecting device based on thermocouple |
-
2013
- 2013-11-15 CN CN201310568255.3A patent/CN103728040A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4211113A (en) * | 1978-04-05 | 1980-07-08 | Hawker Siddeley Dynamics Engineering, Ltd. | Temperature measurement |
| CN101055209A (en) * | 2007-05-31 | 2007-10-17 | 淄博惠工仪器有限公司 | Switch cabinet contact temperature monitoring and alarming system |
| CN201096542Y (en) * | 2007-07-05 | 2008-08-06 | 保定市屹高电气有限公司 | Optical fibre type temperature on-line monitoring system |
| CN102004007A (en) * | 2010-10-15 | 2011-04-06 | 中国计量学院 | Instrument and method for improving temperature regulation accuracy of electric iron temperature controller |
| CN102297730A (en) * | 2011-05-23 | 2011-12-28 | 国网电力科学研究院 | Multi-channel general temperature measurement module |
| CN102410883A (en) * | 2011-11-16 | 2012-04-11 | 江苏正佰电气有限公司 | Switching equipment temperature rise detection system |
| CN202793609U (en) * | 2012-08-07 | 2013-03-13 | 浙江卓安自动化控制设备有限公司 | Online temperature measuring device of multifunctional switch cabinet |
| CN103207026A (en) * | 2013-03-28 | 2013-07-17 | 无锡市崇安区科技创业服务中心 | Temperature monitoring system for high voltage switch cabinet |
| CN203561453U (en) * | 2013-11-15 | 2014-04-23 | 成都市宏山科技有限公司 | Switch cabinet temperature detecting device based on thermocouple |
Non-Patent Citations (1)
| Title |
|---|
| 顾能华等: "高压开关柜温升自动巡检仪的设计", 《机电工程》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105150273A (en) * | 2015-09-28 | 2015-12-16 | 大连理工大学 | Wireless temperature measuring system and method for carbon fiber composite drilling |
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Application publication date: 20140416 |