CN205941769U - Copper aluminium transition connecting terminal operating condition on -line monitoring device - Google Patents
Copper aluminium transition connecting terminal operating condition on -line monitoring device Download PDFInfo
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- CN205941769U CN205941769U CN201620694218.6U CN201620694218U CN205941769U CN 205941769 U CN205941769 U CN 205941769U CN 201620694218 U CN201620694218 U CN 201620694218U CN 205941769 U CN205941769 U CN 205941769U
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Abstract
The utility model discloses a copper aluminium transition connecting terminal operating condition on -line monitoring device, including the microprocessor module, the microprocessor module is connected with beidou positioning module, environment temperature and humidity sensor, temperature sensor and current sensor to be connected to monitor terminal through wireless communication module, environment temperature and humidity sensor is used for surveing the temperature and humidity around the connecting terminal, and temperature sensor is used for surveing the temperature of connecting terminal department, and current sensor is used for surveing the electric current that connecting terminal flows through. The utility model discloses an environment temperature and humidity sensor, temperature sensor and current sensor's collection to through wireless communication module with data transmission to monitor terminal, realize the online real -time supervision of connecting terminal department, improved the control reliability greatly, adopt wireless transmission, the use of having saved the cable, and can realize short -term and long -term monitoring, and realize the convenient searching of fault point through orientation module, the trouble of discharging fast improves maintenance efficiency greatly.
Description
Technical field
The utility model is related to a kind of copper-aluminium transition connection terminal working condition on-Line Monitor Device, belongs to copper-aluminium transition even
The monitoring device of connecting terminal working condition.
Background technology
China abounds with aluminium and copper resource is poor, and copper is only second to the second largest strategic materials of oil as China, and import is interdependent
Degree reaches 70%.The end of the year 2013, National Development and Reform Committee and Ministry of Industry and Information have determined with the strategic direction of aluminium section copper, are become with aluminium section copper
The every profession and trade focus of attention.Because aluminum alloy materials not only have high connductivity, the thermal conductivity of copper material, and have that price is low, quality
Gently, corrosion-resistant, attractive in appearance, economic the advantages of.Therefore, for electrical network, aluminium alloy cable and auxiliary product are within the specific limits
Copper cable can be replaced.According to China's power industry " 12 " development plan it is contemplated that national 110kV in 2015 and above transmission of electricity
Line length will reach 1,300,000 kilometers, and the year two thousand twenty will reach 1,700,000 kilometers.Therefore, aluminium alloy cable has welcome good development machine
Meet.Cable copper-aluminium transition connection terminal is aluminium alloy cable one of vitals used in electrical network, is shown according to operating experience
Show that more than 90% cable operation fault is caused by cable connecting terminals fault.
Using manually carrying out periodic monitoring, monitoring is wasted time and energy for existing monitoring, and monitoring is not real-time, easily causes fault and sends out
Raw, and monitoring efficiency is low and monitoring is unreliable, and buy single monitoring device, equipment cost is expensive, and maintenance cost is also high.
Content of the invention
The technical problems to be solved in the utility model is：A kind of copper-aluminium transition connection terminal working condition on-line monitoring is provided
Device, realizes the real-time, quick and reliable of copper-aluminium transition connection terminal working condition is monitored, more time saving and energy saving, reduces
Fault rate, monitoring efficiency is high, and detection is relatively reliable, and equipment cost is low, easy to maintenance quick, improves condition monitoring device
Extensibility, to solve problems of the prior art.
The technical scheme that the utility model is taken is：A kind of copper-aluminium transition connection terminal working condition on-Line Monitor Device,
Including microprocessor module, described microprocessor module is connected with Big Dipper locating module, environment humidity sensor, TEMP
Device and current sensor, and monitor terminal is connected to by wireless communication module, described environment humidity sensor is used for measuring
Temperature and humidity around connection terminal, described temperature sensor is used for measuring the temperature at connection terminal, described current sense
Device is used for measuring the electric current that connection terminal flows through.
Preferably, above-mentioned microprocessor module is also associated with data memory module, and data memory module includes SD card, passes through
By the ambient temperature and humidity of collection, terminal temperature and current information is stored it is ensured that device for the data memory module of SD card
The reliability of collection.
Preferably, above-mentioned environment humidity sensor adopts digital temperature-humidity sensor SHT15.
Preferably, said temperature sensor adopts digital temperature sensor DS18B20.
Preferably, above-mentioned current sensor adopts Hall element.
Preferably, above-mentioned wireless communication module uses GPRS/GSM module SIM900A of double frequency, the GPRS mould of employing
Block realizes reliably reaching field data remote monitoring terminal.
Preferably, above-mentioned micro treatment module adopts microprocessor MSP430f149, MSP430f149 to have the spy of low-power consumption
Point, except being integrated with the program storage area of 64KB, data field, special function register area inside it, is also integrated with 12
A/D converting unit.
Preferably, above-mentioned microprocessor module and wireless communication module are arranged on the circuit board in the plastics electrical appliance kit of waterproof
On, environment humidity sensor, temperature sensor and current sensor are connected by the water joint being arranged on plastics electrical appliance kit
It is connected to the microprocessor module on circuit board.
Preferably, above-mentioned plastics electrical appliance kit is additionally provided with six A/D translation interfaces, and six A/D translation interfaces are connected to micro-
Processor module, improves the extensibility of device.
The beneficial effects of the utility model：Compared with prior art, the utility model passes through environment humidity sensor, temperature
Degree sensor and the collection of current sensor, and monitor terminal is transferred data to by wireless communication module, realize connection end
On-line real time monitoring at son, substantially increases monitoring reliability, using being wirelessly transferred, eliminates the use of cable, and can be real
Existing short-term and long-term monitoring, and the easy to find of trouble point is realized by locating module, quickly discharge fault, greatly improve dimension
Shield efficiency, the utility model also has structure and is simple and convenient to operate quick and monitors reliable feature.
Brief description
Fig. 1 is control attachment structure schematic diagram of the present utility model；
Fig. 2 is apparatus structure schematic diagram of the present utility model；
Fig. 3 is the left view structural representation of Fig. 2；
Fig. 4 is aluminium alloy cable copper-aluminium transition connector construction schematic cross-section.
In figure：1- battery, 2- power supply terminal, 3- Big Dipper locating module, 4- microprocessor module, 5- radio communication
Module, 6- circuit board, 7- Big Dipper locating module antenna, 8- big dipper module binding post, 9- sensor interface terminal, 10- switchs,
11- plastics electrical appliance kit, 12- antenna, 101- connecting tube, 102- conductor wire core, 103- conductive paste layer.
Specific embodiment
Below in conjunction with the accompanying drawings and specific embodiment is described further to the utility model.
Embodiment 1：As Figure 1-Figure 4, a kind of copper-aluminium transition connection terminal working condition on-Line Monitor Device, including micro-
Processor module, microprocessor module is connected with Big Dipper locating module, environment humidity sensor, temperature sensor and electric current and passes
Sensor, and monitor terminal is connected to by wireless communication module, environment humidity sensor is used for measuring around connection terminal
Temperature and humidity, temperature sensor is used for measuring temperature at connection terminal, and current sensor is used for measuring connection terminal and flows through
Electric current, microprocessor module be also associated with provide power supply power subsystem.
Preferably, above-mentioned microprocessor module is also associated with data memory module, and data memory module includes SD card.
Preferably, above-mentioned environment humidity sensor adopts digital temperature-humidity sensor SHT15.
Preferably, said temperature sensor adopts digital temperature sensor DS18B20.
Preferably, above-mentioned current sensor adopts Hall element.
Preferably, above-mentioned wireless communication module uses GPRS/GSM module SIM900A of double frequency.
Preferably, above-mentioned micro treatment module adopts microprocessor MSP430f149.
Preferably, above-mentioned microprocessor module and wireless communication module are arranged on the circuit board in the plastics electrical appliance kit of waterproof
On, environment humidity sensor, temperature sensor and current sensor are connected by the water joint being arranged on plastics electrical appliance kit
It is connected to the microprocessor module on circuit board.
Preferably, above-mentioned plastics electrical appliance kit is additionally provided with six A/D translation interfaces, and six A/D translation interfaces are connected to micro-
Processor module.
Microprocessor module 4 in plastics electrical appliance kit 11, wireless communication module 5, Big Dipper locating module 3 one end and circuit board
6 are connected, and power subsystem 1 is battery, and battery is connected with circuit board 6 one end, wireless communication module 5 other end and antenna 12 phase
Even, Big Dipper locating module 3 one end is connected with Big Dipper locating module antenna 7, and sensor is connected with circuit board 6 by water joint 9,
Switch 10 is connected with circuit board 6, and antenna 12 and binding post 8 stretch into wherein cavity in waterproof case 11 one end, respectively with wirelessly
Communication module 5 is connected with big dipper module, and environment humidity sensor, temperature sensor and current sensor pass through water joint 9
One end stretch into plastics electrical appliance kit internal cavity and be connected with circuit board 6, switch 10 one end on the plastics electrical appliance kit 11 of waterproof is stretched into
In plastics electrical appliance kit 11, cavity is connected with circuit board 9.
Above-mentioned aerial temperature and humidity sensor SHT15 is connected with P1.0, P1.1 of microprocessor module；Temperature sensor and electricity
Flow sensor is connected with P4.1, P4.2, P4.3, P4.4 of microprocessor module by SPI sensor bus；Microprocessor and nothing
Line communication unit passes through P3.6, P3.7 and is connected；Microprocessor is connected by P3.4, P3.5 with Big Dipper locating module；Six A/D turn
Alias is connected with P6.1, P6.2, P6.3, P6.4, P6.5, P6.6 of microprocessor respectively, and wherein the P6.0 of microprocessor uses
In monitoring battery tension.
As shown in figure 4, connection terminal is connecting tube 101, conductor wire core 102 and conductive paste layer 103, according to connection terminal
Joint design is it is known that joint internal heat resource includes：In calorifics, heat transfer is represented by Q=C* Δ T*M, and C is connection terminal
The specific heat of material, M is the quality of connection terminal material, and Δ T is the temperature difference.
According to the principle of thermal conduction study, the heat at cable connector is mainly transmitted by three kinds of modes, i.e. heat transfer, heat
Radiation and thermal convection current.The heat that wherein heat transfer produces is Joule heat, and the heat output of thermal convection current is：H is to connect
The convective heat-transfer coefficient of terminal material, A is connection terminal section heat exchange area, and Δ T is the temperature difference.
When reaching thermal balance in view of diabatic process, temperature field is constant, then can set up aluminium alloy cable copper-aluminium transition and connect
, it is considered to aluminum alloy cable laying this situation in cable duct, heat is mainly by heat transfer and warm for the temperature field simplified model of device
Convection current is constituted：According to concrete application occasion, can use substantial amounts of input heat transfer heat
Temperature with thermal convection current heat and actual measurement, you can determine ω with least square method1And ω2Value.
The utility model predicts the running temperature of copper-aluminium transition connector by above formula, can be that the temperature field of connection terminal is divided
Analysis prediction provides foundation, is that the accident analysis correctness of connection terminal provides safeguard.
Embodiment 2：A kind of monitoring method of copper-aluminium transition connection terminal working condition on-Line Monitor Device, the method includes
Following steps：
(1) copper-aluminium transition end is recorded by big dipper module, environment humidity sensor, temperature sensor and current sensor
Position at son, ambient temperature and humidity and connection terminal temperature and electric current；
(2) electric current, temperature and the electric current that pass through to record pass through the time, calculate heat transfer heat and heat at connection terminal right
Stream heat, formula is as follows：
In calorifics, heat transfer is represented by Q=C* Δ T*M, and C is the specific heat of connection terminal material, and M is connection terminal thing
The quality of matter, Δ T is the temperature difference；
The heat output of thermal convection current is：H is the convective heat-transfer coefficient of connection terminal material, and A cuts for connection terminal
Face heat exchange area, Δ T is the temperature difference；
(3) temperature correction, heat calculated in step (2) is substituted into following computation model, you can try to achieve connection end
Actual temperature at son：
T=ω1Q/(C*M)+ω2φ/(h*A)
In above formula, ω1And ω2It is the coefficient being confirmed using least square method by the input of substantial amounts of heat and temperature output；
Q is the Joule heat producing at connection terminal；
C is the specific heat of connection terminal material；
M is the quality of connection terminal material；
The heat output of φ connection terminal material thermal convection current；
H is the convective heat-transfer coefficient of connection terminal material；
A is connection terminal material section heat exchange area.
The above, specific embodiment only of the present utility model, but protection domain of the present utility model does not limit to
In this, any those familiar with the art, in the technical scope that the utility model discloses, can readily occur in change
Or replace, all should cover within protection domain of the present utility model, therefore, protection domain of the present utility model should be with described power
The protection domain that profit requires is defined.
Claims (9)
1. a kind of copper-aluminium transition connection terminal working condition on-Line Monitor Device it is characterised in that：Including microprocessor module, institute
State microprocessor module and be connected with Big Dipper locating module, environment humidity sensor, temperature sensor and current sensor, and lead to
Cross wireless communication module and be connected to monitor terminal, described environment humidity sensor be used for measuring temperature around connection terminal and
Humidity, described temperature sensor is used for measuring the temperature at connection terminal, and described current sensor is used for measuring connection end subflow
The electric current crossed.
2. a kind of copper-aluminium transition connection terminal working condition on-Line Monitor Device according to claim 1 it is characterised in that：
Described microprocessor module is also associated with data memory module, and data memory module includes SD card.
3. a kind of copper-aluminium transition connection terminal working condition on-Line Monitor Device according to claim 1 it is characterised in that：
Described environment humidity sensor adopts digital temperature-humidity sensor SHT15.
4. a kind of copper-aluminium transition connection terminal working condition on-Line Monitor Device according to claim 1 it is characterised in that：
Described temperature sensor adopts digital temperature sensor DS18B20.
5. a kind of copper-aluminium transition connection terminal working condition on-Line Monitor Device according to claim 1 it is characterised in that：
Described current sensor adopts Hall element.
6. a kind of copper-aluminium transition connection terminal working condition on-Line Monitor Device according to claim 1 it is characterised in that：
Described wireless communication module uses GPRS/GSM module SIM900A of double frequency.
7. a kind of copper-aluminium transition connection terminal working condition on-Line Monitor Device according to claim 1 it is characterised in that：
Described micro treatment module adopts microprocessor MSP430f149.
8. a kind of copper-aluminium transition connection terminal working condition on-Line Monitor Device according to claim 1 it is characterised in that：
Described microprocessor module and wireless communication module are arranged on the circuit board in the plastics electrical appliance kit of waterproof, and ambient temperature and humidity passes
Sensor, temperature sensor and current sensor are connected to micro- on circuit board by the water joint being arranged on plastics electrical appliance kit
Processor module.
9. a kind of copper-aluminium transition connection terminal working condition on-Line Monitor Device according to claim 8 it is characterised in that：
Described plastics electrical appliance kit is additionally provided with six A/D translation interfaces, and six A/D translation interfaces are connected to microprocessor module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620694218.6U CN205941769U (en) | 2016-07-05 | 2016-07-05 | Copper aluminium transition connecting terminal operating condition on -line monitoring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620694218.6U CN205941769U (en) | 2016-07-05 | 2016-07-05 | Copper aluminium transition connecting terminal operating condition on -line monitoring device |
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| Publication Number | Publication Date |
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| CN205941769U true CN205941769U (en) | 2017-02-08 |
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| CN201620694218.6U Active CN205941769U (en) | 2016-07-05 | 2016-07-05 | Copper aluminium transition connecting terminal operating condition on -line monitoring device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106019070A (en) * | 2016-07-05 | 2016-10-12 | 贵州电网有限责任公司电力科学研究院 | On-line monitoring device and monitoring method for working state of copper-aluminum composite connection terminal |
-
2016
- 2016-07-05 CN CN201620694218.6U patent/CN205941769U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106019070A (en) * | 2016-07-05 | 2016-10-12 | 贵州电网有限责任公司电力科学研究院 | On-line monitoring device and monitoring method for working state of copper-aluminum composite connection terminal |
| CN106019070B (en) * | 2016-07-05 | 2018-12-07 | 贵州电网有限责任公司电力科学研究院 | A kind of copper-aluminium transition connection terminal working condition on-Line Monitor Device and monitoring method |
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