CN103743941B - Non-transformer wireless telecommunications AC clip-on ammeter - Google Patents
Non-transformer wireless telecommunications AC clip-on ammeter Download PDFInfo
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- CN103743941B CN103743941B CN201410050255.9A CN201410050255A CN103743941B CN 103743941 B CN103743941 B CN 103743941B CN 201410050255 A CN201410050255 A CN 201410050255A CN 103743941 B CN103743941 B CN 103743941B
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Abstract
Non-transformer wireless telecommunications AC clip-on ammeter, relates to a kind of AC clip-on ammeter.The present invention solves existing clamp on amperemeter needs short time power-off, the problem that there is potential safety hazard when mounting receptacle.The measuring coil of the present invention and power coil are all wrapped on iron core, and measuring coil, power coil and iron core are placed in sheath；The current signal output end of power coil connects the current signal input of regulator rectifier circuit, and after the rectifying and voltage-stabilizing of regulator rectifier circuit, signal output part is simultaneously connected with the power supply signal input of wireless communication line, the power supply signal input of single chip circuit and the power supply signal input of signal transformation circuit；The current signal that pincerlike current sensor gathers is inputted to signal transformation circuit by measuring coil, the signal output part of signal transformation circuit connects the reshaping signal input of single chip circuit, and the wireless signal outfan of single chip circuit connects the signal input part of wireless communication line.The present invention is used for measuring pincerlike alternating current.
Description
Technical field
The present invention relates to a kind of AC clip-on ammeter.
Background technology
The power supply mode of existing clamp on amperemeter is that battery is powered or Switching Power Supply is powered.Battery powered clamp on amperemeter is uncomfortable
Close and measure current value in real time for a long time；The clamp on amperemeter powered by Switching Power Supply can measure current value the most in real time,
But it is the most outdoor in the measurement occasion not having single-phase alternating current supply socket, it is necessary in measure field, supply socket to be installed.This
Sample does not only needs short time power-off when mounting receptacle, and there is certain potential safety hazard.
Summary of the invention
The present invention is to solve that existing clamp on amperemeter needs short time power-off when mounting receptacle, there is asking of potential safety hazard
Topic, it is proposed that a kind of non-transformer wireless telecommunications AC clip-on ammeter.
Non-transformer wireless telecommunications AC clip-on ammeter of the present invention, it includes ammeter shell, regulator rectifier circuit, pincers
Shape current sensor, power coil, wireless communication line, single chip circuit and signal transformation circuit；
Described pincerlike current sensor includes measuring coil, iron core and sheath；
Regulator rectifier circuit, wireless communication line, single chip circuit and signal transformation circuit are placed in ammeter shell,
Described measuring coil and power coil are all wrapped on iron core, and measuring coil, power coil and iron core are placed in sheath；
The current signal output end of power coil connects the current signal input of regulator rectifier circuit, regulator rectifier circuit whole
Stream voltage stabilizing after signal output part be simultaneously connected with the power supply signal input of wireless communication line, single chip circuit power supply signal defeated
Enter the power supply signal input of end and signal transformation circuit；
The current signal that pincerlike current sensor gathers is inputted to signal transformation circuit by measuring coil, signal transformation circuit
Signal output part connects the reshaping signal input of single chip circuit, and the wireless signal outfan of single chip circuit connects channel radio
The signal input part of news circuit.
The present invention, based on electromagnetic induction principle, directly obtains trace electric energy so that it is can be not against electricity from measured wire
Pond or Switching Power Supply be the AC current values on long-time measure traverse line in real time in the case of powering, and reaches to facilitate in-site installation to make
With, reduce the cost, improve the purpose of security and the reliability, and safety and reliability compared with existing AC clip-on ammeter
All improve more than 10%.
Accompanying drawing explanation
Fig. 1 is the structural representation of non-transformer wireless telecommunications AC clip-on ammeter of the present invention.
Detailed description of the invention
Detailed description of the invention one, combining Fig. 1 present embodiment is described, non-transformer wireless telecommunications pincer described in present embodiment is handed over
Stream ammeter, it includes ammeter shell 1, regulator rectifier circuit 2, pincerlike current sensor 3, power coil 5, wireless
Communicating circuit 6, single chip circuit 7 and signal transformation circuit 8；
Described pincerlike current sensor 3 includes measuring coil 4-1, iron core 4-2 and sheath 4-3；
Regulator rectifier circuit 2, wireless communication line 6, single chip circuit 7 and signal transformation circuit 8 are placed in outside ammeter
In shell 1,
Described measuring coil 4-1 and power coil 5 are all wrapped on iron core 4-2, measuring coil 4-1, power coil 5 and
Iron core 4-2 is placed in sheath 4-3；
The current signal output end of power coil 5 connects the current signal input of regulator rectifier circuit 2, regulator rectifier circuit
After the rectifying and voltage-stabilizing of 2, signal output part is simultaneously connected with the power supply signal input of wireless communication line 6, single chip circuit 7
The power supply signal input of power supply signal input and signal transformation circuit 8；
The current signal that pincerlike current sensor 3 gathers is inputted to signal transformation circuit 8 by measuring coil 4-1, and signal is whole
The signal output part of shape circuit 8 connects the reshaping signal input of single chip circuit 7, and the wireless signal of single chip circuit 7 is defeated
Go out end and connect the signal input part of wireless communication line 6.
Non-transformer wireless telecommunications AC clip-on ammeter of the present invention can be in the measurement not having single-phase alternating current supply socket
Occasion is mounted directly, it is not necessary to changes test line for obtaining single phase alternating current power supply, does not has power process, does not bring safety
Hidden danger.Utilizing wireless telecommunications real-time Transmission measurement data, engineers and technicians can be in the situation not contacting any tested wire
Under obtain measurement data, improve and ensure personnel and circuit and the safety of equipment while measuring efficiency.Utilize one independent
Induction coil obtains trace electric energy from tested wire, through rectifying and voltage-stabilizing system to signal transformation circuit and single-chip microcomputer and nothing
Line communicating circuit is powered, it is achieved non-transformer works.
Detailed description of the invention two, present embodiment are to the non-transformer wireless telecommunications pincer alternating current described in detailed description of the invention one
Further illustrating of stream table, the number of turn of measuring coil 4 is 1000 circles.
Detailed description of the invention three, present embodiment be to the non-transformer described in detailed description of the invention one or detailed description of the invention two without
Further illustrating of line communication AC clip-on ammeter, the number of turn of power coil 5 is 200 circles.
Non-transformer wireless telecommunications AC clip-on ammeter described in the utility model pincerlike sensor internal increase by one independent
Power coil, based on the number of turn running power power coil needed for clamp on amperemeter estimation circuit and line footpath.Power coil obtains
The electric energy taken is converted into the properly functioning required DC source of applicable ammeter estimation circuit by regulator rectifier circuit.Signal
The signal that measuring coil is induced by shaping circuit is converted into the voltage signal that single-chip microcomputer can gather, and this signal is dynamo-electric through monolithic
A/D converter on road is converted to digital signal and is transferred to data terminal by wireless communication line.
Claims (3)
1. non-transformer wireless telecommunications AC clip-on ammeter, it is characterised in that it includes ammeter shell (1), rectifying and voltage-stabilizing
Circuit (2), pincerlike current sensor (3), power coil (5), wireless communication line (6), single chip circuit (7) and
Signal transformation circuit (8)；
Described pincerlike current sensor (3) includes measuring coil (4-1), iron core (4-2) and sheath (4-3)；
Regulator rectifier circuit (2), wireless communication line (6), single chip circuit (7) and signal transformation circuit (8) are all put
In ammeter shell (1),
Described measuring coil (4-1) and power coil (5) are all wrapped on iron core (4-2), measuring coil (4-1), confession
Electric coil (5) and iron core (4-2) are placed in sheath (4-3)；
The current signal output end of power coil (5) connects the current signal input of regulator rectifier circuit (2), and rectification is steady
After the rectifying and voltage-stabilizing of volt circuit (2), signal output part is simultaneously connected with the power supply signal input of wireless communication line (6), list
The power supply signal input on sheet electromechanics road (7) and the power supply signal input of signal transformation circuit (8)；
The current signal that pincerlike current sensor (3) gathers is inputted to signal transformation circuit (8) by measuring coil (4-1),
The signal output part of signal transformation circuit (8) connects the reshaping signal input of single chip circuit (7), single chip circuit (7)
Wireless signal outfan connect wireless communication line (6) signal input part.
Non-transformer wireless telecommunications AC clip-on ammeter the most according to claim 1, it is characterised in that measuring coil (4)
The number of turn be 1000 circles.
Non-transformer wireless telecommunications AC clip-on ammeter the most according to claim 1 and 2, it is characterised in that supply lines
The number of turn of circle (5) is 200 circles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410050255.9A CN103743941B (en) | 2014-02-13 | 2014-02-13 | Non-transformer wireless telecommunications AC clip-on ammeter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410050255.9A CN103743941B (en) | 2014-02-13 | 2014-02-13 | Non-transformer wireless telecommunications AC clip-on ammeter |
Publications (2)
| Publication Number | Publication Date |
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| CN103743941A CN103743941A (en) | 2014-04-23 |
| CN103743941B true CN103743941B (en) | 2016-08-17 |
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| CN201410050255.9A Active CN103743941B (en) | 2014-02-13 | 2014-02-13 | Non-transformer wireless telecommunications AC clip-on ammeter |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105182060B (en) * | 2015-10-08 | 2018-07-24 | 三峡大学 | A kind of self-powered distributed wireless current sensor |
| CN107255963B (en) * | 2017-06-15 | 2019-05-10 | 国网浙江义乌市供电公司 | Multipurpose electric flow table and control method |
| CN107228969A (en) * | 2017-06-15 | 2017-10-03 | 国网浙江义乌市供电公司 | Multipurpose electric flow table and control method with different measurement accuracy |
| CN109975591B (en) * | 2019-03-28 | 2024-02-23 | 漳州市玉山电子制造有限公司 | AC pincerlike multipurpose meter and coil winding method thereof |
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| US6040688A (en) * | 1998-01-28 | 2000-03-21 | Liaisons Electronique - Mecaniques Lem S.A. | Electrical current supply device with incorporated electrical current sensor |
| CN101728076A (en) * | 2010-01-13 | 2010-06-09 | 武汉本杰明自动化设备工程有限公司 | Micropower infrared-communication current transformer |
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| CN102590574A (en) * | 2012-03-14 | 2012-07-18 | 昆明迪森电气有限公司 | Digital current transformer based on induction power supply and monitoring method for digital current transformer |
| CN203337722U (en) * | 2013-07-26 | 2013-12-11 | 大厂回族自治县开元电力技术有限公司 | Voltage and current collecting device of grid overhead transmission line |
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2014
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| US6040688A (en) * | 1998-01-28 | 2000-03-21 | Liaisons Electronique - Mecaniques Lem S.A. | Electrical current supply device with incorporated electrical current sensor |
| CN101728076A (en) * | 2010-01-13 | 2010-06-09 | 武汉本杰明自动化设备工程有限公司 | Micropower infrared-communication current transformer |
| CN102508005A (en) * | 2011-11-17 | 2012-06-20 | 北京四方继保自动化股份有限公司 | Safe wireless transmission current measuring device |
| CN102590574A (en) * | 2012-03-14 | 2012-07-18 | 昆明迪森电气有限公司 | Digital current transformer based on induction power supply and monitoring method for digital current transformer |
| CN203337722U (en) * | 2013-07-26 | 2013-12-11 | 大厂回族自治县开元电力技术有限公司 | Voltage and current collecting device of grid overhead transmission line |
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