CN107271744A - The Wiring structure of the pin configuration of manganese copper diverter, pcb board and pcb board - Google Patents
The Wiring structure of the pin configuration of manganese copper diverter, pcb board and pcb board Download PDFInfo
- Publication number
- CN107271744A CN107271744A CN201710533137.7A CN201710533137A CN107271744A CN 107271744 A CN107271744 A CN 107271744A CN 201710533137 A CN201710533137 A CN 201710533137A CN 107271744 A CN107271744 A CN 107271744A
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- China
- Prior art keywords
- current sample
- sample end
- pcb board
- manganese copper
- copper diverter
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R15/00—Details of measuring arrangements of the types provided for in groups G01R17/00 - G01R29/00, G01R33/00 - G01R33/26 or G01R35/00
Abstract
The invention discloses the Wiring structure of a kind of pin configuration of manganese copper diverter, pcb board and pcb board, the first current sample end and the second current sample end of manganese copper diverter are located at the homonymy of manganese copper diverter, and the second current sample end is disturbed by outside alternating magnetic field；First sampled signal line forms an annular cabling on the pcb board being be arranged in parallel with manganese copper diverter, and the AD samplings of chip are connected to together with the second sampled signal line in the way of parallel or multiple twin, so that the interference of outside alternating magnetic field is introduced into the first current sample end, the first current sample end is set to be disturbed alternating magnetic field outside size identical to disturb by the outside alternating magnetic field being subject to the second current sample end.Cabling mode of the present invention using the current sample end of change manganese copper diverter on pcb board, alternating magnetic field is introduced into the first current sample end to the interference at the second current sample end, both cancel out each other in interference, so as to prevent sampling of the alternating magnetic field to manganese copper diverter from disturbing.
Description
Technical field
The present invention relates to electronic circuit technology field, more particularly to a kind of pin configuration of manganese copper diverter, pcb board and
The Wiring structure of pcb board.
Background technology
Manganese copper diverter is widely used in instrument measurement current domain, available for communication system, complete electronic set, automation
Backflow, current limliting, the sampling detection flowed of the power supply of control etc..Manganese copper diverter has that stability is good, temperature variation is small
Feature.The device has had the history of decades as the current sampling devices of electronic electric energy meter, until today is still as one
Indispensable Sampling device is planted to be used.
Existing manganese copper diverter is generally fixed on the end of incoming cables of electronic equipment by fixed copper sheet, manganese copper diverter
Be connected between current sampling end and electronic circuit pcb board with two current sampling signal lines, sampled signal line using it is vertical walk
Line mode or it is directly welded on pcb board.Due to manganese copper diverter gather current signal it is very small, usually microvolt level
, so traditional this cabling mode for being directly installed on terminal or being connected on relay, is particularly easy to by alternation
The interference in magnetic field, so as to cause current sample and measure inaccurate.
According to Faraday's electromagnetic induction law, the induced electromotive force calculation formula that coil is produced is：E=Nd Φ/dt is (wherein
φ=BS, B are magnetic field intensity, and S is effective area, N=1), when there is alternating magnetic field interference, copper-manganese in itself, cable and copper-manganese
Gap or the gap of pcb board and copper-manganese have closed circuit, corresponding induced electromotive force will be produced in sampling end, the sense
Answer electromotive force to amplify by subsequent conditioning circuit, the accuracy of current sample is had a strong impact on after AD conversion.Existing some criminals
Just easily the defect that can not accurately measure is influenceed to carry out stealing by outside alternating magnetic field using the existing electric energy meter sampled based on copper-manganese,
Changed through calculating using error caused by the means stealing with the power of alternating magnetic field intensity, worst error can reach
100%.In addition, alternating electromagnetism interference internal in designing manganese copper diverter itself also can not be ignored, for example, Industrial Frequency Transformer
Leakage field influences meter kinematic error；The copper-manganese symmetrical expression connection of three-phase meter three, em induced current is excessive between phase and phase, small-signal
Influence serious etc..
Therefore, interference of the extraneous alternating magnetic field to manganese copper diverter how is resisted, is a problem of letter is to be solved.
The content of the invention
It is an object of the invention to provide a kind of pin configuration, the pcb board of the manganese copper diverter of anti-extraneous alternating magnetic field interference
And the Wiring structure of pcb board, it is mainly used in the copper-manganese current sampling devices of the anti-extraneous alternating magnetic field interference in electric energy meter field.
The pin configuration for the manganese copper diverter that the present invention is provided, the manganese copper diverter includes the first current sample end and the
Two current sample ends, it is characterised in that the first current sample end is connected with the first sampled signal line, second electric current is adopted
Sample end is connected with the second sampled signal line；
The first current sample end and the second current sample end are located at the homonymy of the manganese copper diverter；Second electricity
Stream sampling end is disturbed by outside alternating magnetic field；
The first sampled signal line, one annular of formation is walked on the pcb board being be arranged in parallel with the manganese copper diverter
Line, and the AD samplings of chip are connected in the way of parallel or multiple twin together with the second sampled signal line, by outside
Alternating magnetic field interference introduces the first current sample end, make the first current sample end by with second current sample
Hold alternating magnetic field interference outside the outside alternating magnetic field interference size identical being subject to.
As a kind of embodiment, the manganese copper diverter is vertically welded on the first pcb board；
The side of the manganese copper diverter is arranged with the second pcb board in parallel；
The first sampled signal line is gone on second pcb board from the first current sample end, forms a ring
After shape cabling, return on first pcb board, finally in the way of parallel or multiple twin together with the second sampled signal line
It is connected to the AD samplings of chip.
As a kind of embodiment, the manganese copper diverter is welded in parallel on the 3rd pcb board；
The first sampled signal line is gone on the 3rd pcb board from the first current sample end, forms a ring
After shape cabling, the AD samplings of chip are connected to together with the second sampled signal line in the way of parallel or multiple twin.
The invention provides a kind of pcb board, including substrate, the copper-manganese point described in any of the above-described is disposed with the substrate
Flow the pin configuration of device.
The invention provides a kind of electric energy meter, including manganese copper diverter, the manganese copper diverter uses any of the above-described institute
The pin configuration for the manganese copper diverter stated.
The invention provides a kind of Wiring structure of pcb board, including the first pcb board, the second pcb board and it is vertically welded in
Manganese copper diverter on first pcb board；
The manganese copper diverter includes the first current sample end and the second current sample end；The second current sample end by
Outside alternating magnetic field interference；
The first current sample end is connected with the first sampled signal line, and the second current sample end is connected with second and adopted
Sample signal wire, the first current sample end and the second current sample end are located at the homonymy of the manganese copper diverter；
Second pcb board, be arranged in parallel positioned at the side of the manganese copper diverter, and with the manganese copper diverter；
The first sampled signal line is gone on second pcb board from the first current sample end, forms a ring
After shape cabling, return on first pcb board, finally in the way of parallel or multiple twin together with the second sampled signal line
It is connected to the AD samplings of chip.
The invention provides a kind of Wiring structure of pcb board, it is characterised in that including pcb board and is welded on institute in parallel
State the manganese copper diverter on pcb board；
The manganese copper diverter includes the first current sample end and the second current sample end；The second current sample end by
Outside alternating magnetic field interference；
The first current sample end is connected with the first sampled signal line, and the second current sample end is connected with second and adopted
Sample signal wire, the first current sample end and the second current sample end are located at the homonymy of the manganese copper diverter；
The first sampled signal line is gone on the pcb board from the first current sample end, is formed an annular and is walked
After line, the AD samplings of chip are connected to together with the second sampled signal line in the way of parallel or multiple twin.
Compared with prior art, the technical program has advantages below：
The Wiring structure of the pin configuration of the manganese copper diverter that the present invention is provided, pcb board and pcb board, using changing copper-manganese
Cabling mode of the current sample end of current divider on pcb board, increases loop area, so that alternating magnetic field be adopted to the second electric current
The interference at sample end, while introducing the first current sample end, makes the first current sample end also dry by size identical alternating magnetic field
Disturb, both cancel out each other in interference, so as to prevent sampling of the alternating magnetic field to manganese copper diverter from disturbing.Outside friendship can not only be solved
The interference of varying magnetic field, while also can solve the problem that to itself internal Industrial Frequency Transformer leakage field and the copper-manganese symmetrical expression scheme of three-phase meter three
Electromagnetic induction mutual interference between phase and phase.
Brief description of the drawings
Fig. 1 is the Wiring structure schematic diagram for the pcb board that the embodiment of the present invention one is provided；
Fig. 2 is the Wiring structure side diagram for the pcb board that the embodiment of the present invention two is provided；
Fig. 3 is that the Wiring structure for the pcb board that the embodiment of the present invention two is provided is bowed diagram.
Embodiment
Below in conjunction with accompanying drawing, the technical characteristic above-mentioned and other to the present invention and advantage are clearly and completely described,
Obviously, described embodiment is only the section Example of the present invention, rather than whole embodiments.
The pin configuration for the manganese copper diverter that the present invention is provided, traditional pin configuration by changing, so as to prevent alternation
Sampling of the magnetic field to manganese copper diverter is disturbed, and it is mainly used in the copper-manganese electric current of the anti-extraneous alternating magnetic field interference in electric energy meter field
Sampling device.
Manganese copper diverter has three ends, respectively voltage sample end, the first current sample end and the second current sample end, the
One current sample end is connected with the first sampled signal line, and the second current sample end is connected with the second sampled signal line.The present invention is carried
The pin configuration of the manganese copper diverter of confession, its first current sample end and the second current sample end are located at the same of manganese copper diverter
Side；Disturbed by outside alternating magnetic field at the second current sample end；First sampled signal line, what is be arranged in parallel with manganese copper diverter
An annular cabling is formed on pcb board, and chip is connected to together with the second sampled signal line in the way of parallel or multiple twin
AD sampling, by outside alternating magnetic field interference introduce the first current sample end, make the first current sample end by with second electricity
Alternating magnetic field interference outside the outside alternating magnetic field interference size identical that stream sampling end is subject to.
It uses cabling mode of the current sample end for changing manganese copper diverter on pcb board, increases loop area, so that
Interference by alternating magnetic field to the second current sample end, at the same introduce the first current sample end, allow the first current sample end also by
To the interference of size identical alternating magnetic field, both cancel out each other in interference, so as to prevent sampling of the alternating magnetic field to manganese copper diverter
Interference.The interference of outside alternating magnetic field can not only be solved, at the same also can solve the problem that to itself internal Industrial Frequency Transformer leakage field and
The electromagnetic induction mutual interference between phase and phase of the copper-manganese symmetrical expression scheme of three-phase meter three.
Magnetic interference is also introduced the first current sample end, allows it by the present invention simultaneously by increasing the loop area of lead
Also disturbed by size identical alternating magnetic field, both cancel out each other from and preventing sampling of the alternating magnetic field to manganese copper diverter
Interference.Its implementation can have a variety of, for example, can be vertically welded in manganese copper diverter on the first pcb board, then in manganese
The side of copper current divider be arranged in parallel the second pcb board, and the first sampled signal line goes to the second pcb board from the first current sample end
On, formed after an annular cabling, returned on the first pcb board, finally in the way of parallel or multiple twin with the second sampled signal
Line is connected to the AD samplings of chip together.Manganese copper diverter can also be welded in parallel on pcb board, the first sampled signal line from
First current sample end is gone on the CB plates, is formed after an annular cabling, with the second sampling in the way of parallel or multiple twin
Signal wire is connected to the AD samplings of chip together.
The embodiment of the present invention also provides the lead that above-mentioned manganese copper diverter is disposed with a kind of pcb board, including substrate, substrate
Structure.
Two kinds of specific embodiments are set forth below, the implementation process to the present invention is described in detail.
Embodiment one
It is dry to manganese copper diverter referring to the anti-extraneous alternating magnetic field of Wiring structure of Fig. 1, the present embodiment use pcb board provided
The design disturbed, it mainly includes manganese copper diverter 03, the first pcb board 01 and the second pcb board 02.The vertical welding of manganese copper diverter 03
On the first pcb board 01, the second pcb board 02 is parallel and near to manganese copper diverter 03, first electricity of the PCB trace from manganese copper diverter 03
Sampled point A is flowed, goes to and an annular cabling 04 is drawn on the second pcb board 02, walk back the C points on the first pcb board 01 again afterwards, simultaneously
The AD that chip is connected in the way of parallel or multiple twin with the second sampling end B of manganese copper diverter 03 PCB traces drawn samples.
When originally without the second pcb board 02, alternating magnetic field is acted only on manganese copper diverter 03, is produced induced electromotive force and is tired out
It is added on B points, the AD samplings of A, B dual-point entry chip, △ UAB=I*R+E.Increase after this second pcb board 02, produce sensing
Electromotive force is respectively acting on 2 points of C, B, △ UCB=△ UAB- △ UAC=I*R+E-E' ≈ I*R, and the electric current close to reality is big
It is small, the AD samplings of C, B dual-point entry chip.Wherein I is needs the electric current sampled, and R is copper-manganese value, and E is that power frequency magnetic field is acted on
The induced electromotive force of manganese copper diverter 03, E' is induced electromotive force of the action of alternating magnetic field on the second pcb board 02, and electromotive force is big
Small direction is identical with E.
This pin configuration is simple, by original the second current sample of manganese copper diverter end sense copper-manganese loop produced by
Electromotive force be similarly added to the first current sample end, both are added to simultaneously, and electromotive force size is identical, and AD sampling be
2 points of difference, so the interference caused by alternating magnetic field can cancel out each other, AD sampled values are also more nearly actual electric current
Value, is also prevented from sampling of the alternating magnetic field to manganese copper diverter and disturbs.
Embodiment two
Referring to the anti-extraneous alternating magnetic field of Wiring structure of Fig. 2 and Fig. 3, the present embodiment use pcb board provided to copper-manganese point
The design of device interference is flowed, it mainly includes point pcb board 10 and a manganese copper diverter 11.Manganese copper diverter 11 is welded parallel to pcb board 10
It is connected on pcb board 10, PCB trace goes to one annular of picture on pcb board 10 from the first current sample point A of manganese copper diverter 11
Cabling 12, the C points gone further back afterwards on pcb board 10, while the PCB trace with the second sampling end B extractions of manganese copper diverter 11
The AD samplings of chip are connected in the way of parallel or multiple twin.
Similarly, this pin configuration by original the second current sample of manganese copper diverter end sense copper-manganese loop produced by
Electromotive force be similarly added to the first current sample end, both are added to simultaneously, and electromotive force size is identical, and AD sampling be
2 points of difference, so the interference caused by alternating magnetic field can cancel out each other, AD sampled values are also more nearly actual electric current
Value, is also prevented from sampling of the alternating magnetic field to manganese copper diverter and disturbs.
Based on above-described embodiment, the embodiment of the present invention additionally provides a kind of electric energy meter, including manganese copper diverter, the copper-manganese point
The pin configuration that device uses above-mentioned manganese copper diverter is flowed, can effectively prevent sampling of the alternating magnetic field to manganese copper diverter from disturbing,
The influence of the electromagnetic induction mutual interference between phase and phase of the copper-manganese symmetrical expression scheme of three-phase meter three is solved, Industrial Frequency Transformer and manganese is solved
Copper current divider apart from it is near when, the influence that Industrial Frequency Transformer leakage field is measured to electric energy meter.
Although the present invention is disclosed as above with preferred embodiment, it is not for limiting the present invention, any this area
Technical staff without departing from the spirit and scope of the present invention, may be by the methods and techniques content of the disclosure above to this hair
Bright technical scheme makes possible variation and modification, therefore, every content without departing from technical solution of the present invention, according to the present invention
Any simple modifications, equivalents, and modifications made to above example of technical spirit, belong to technical solution of the present invention
Protection domain.
Claims (7)
1. a kind of pin configuration of manganese copper diverter, the manganese copper diverter includes the first current sample end and the second current sample
End, it is characterised in that the first current sample end is connected with the first sampled signal line, and the second current sample end is connected with
Second sampled signal line；
The first current sample end and the second current sample end are located at the homonymy of the manganese copper diverter；Second electric current is adopted
Disturbed by outside alternating magnetic field at sample end；
The first sampled signal line, forms an annular cabling on the pcb board being be arranged in parallel with the manganese copper diverter, and
The AD samplings of chip are connected to together with the second sampled signal line in the way of parallel or multiple twin, by outside alternation magnetic
Interference introduces the first current sample end, make the first current sample end by with the second current sample end by
Outside alternating magnetic field interference size identical outside alternating magnetic field interference.
2. the pin configuration of the manganese copper diverter according to profit requires 1, it is characterised in that the manganese copper diverter vertical welding
On the first pcb board；
The side of the manganese copper diverter is arranged with the second pcb board in parallel；
The first sampled signal line is gone on second pcb board from the first current sample end, is formed an annular and is walked
After line, return on first pcb board, finally connected in the way of parallel or multiple twin together with the second sampled signal line
AD to chip samples.
3. the pin configuration of the manganese copper diverter according to profit requires 1, it is characterised in that the parallel welding of the manganese copper diverter
On the 3rd pcb board；
The first sampled signal line is gone on the 3rd pcb board from the first current sample end, is formed an annular and is walked
After line, the AD samplings of chip are connected to together with the second sampled signal line in the way of parallel or multiple twin.
4. a kind of pcb board, including substrate, it is characterised in that any one of the claims 1 to 3 institute is disposed with the substrate
The pin configuration for the manganese copper diverter stated.
5. a kind of electric energy meter, including manganese copper diverter, it is characterised in that the manganese copper diverter uses the claims 1 to 3
The pin configuration of manganese copper diverter described in any one.
6. a kind of Wiring structure of pcb board, it is characterised in that including the first pcb board, the second pcb board and be vertically welded in institute
State the manganese copper diverter on the first pcb board；
The manganese copper diverter includes the first current sample end and the second current sample end；The second current sample end is by outside
Alternating magnetic field is disturbed；
The first current sample end is connected with the first sampled signal line, and the second current sample end is connected with the second sampling letter
Number line, the first current sample end and the second current sample end are located at the homonymy of the manganese copper diverter；
Second pcb board, be arranged in parallel positioned at the side of the manganese copper diverter, and with the manganese copper diverter；
The first sampled signal line is gone on second pcb board from the first current sample end, is formed an annular and is walked
After line, return on first pcb board, finally connected in the way of parallel or multiple twin together with the second sampled signal line
AD to chip samples.
7. a kind of Wiring structure of pcb board, it is characterised in that including pcb board and the copper-manganese being welded in parallel on the pcb board
Current divider；
The manganese copper diverter includes the first current sample end and the second current sample end；The second current sample end is by outside
Alternating magnetic field is disturbed；
The first current sample end is connected with the first sampled signal line, and the second current sample end is connected with the second sampling letter
Number line, the first current sample end and the second current sample end are located at the homonymy of the manganese copper diverter；
The first sampled signal line is gone on the pcb board from the first current sample end, is formed after an annular cabling,
The AD samplings of chip are connected to together with the second sampled signal line in the way of parallel or multiple twin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710533137.7A CN107271744B (en) | 2017-07-03 | 2017-07-03 | Lead structure of manganin shunt, PCB and wiring structure of PCB |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710533137.7A CN107271744B (en) | 2017-07-03 | 2017-07-03 | Lead structure of manganin shunt, PCB and wiring structure of PCB |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107271744A true CN107271744A (en) | 2017-10-20 |
| CN107271744B CN107271744B (en) | 2020-03-24 |
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| CN201710533137.7A Active CN107271744B (en) | 2017-07-03 | 2017-07-03 | Lead structure of manganin shunt, PCB and wiring structure of PCB |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107345977A (en) * | 2017-07-03 | 2017-11-14 | 杭州海兴电力科技股份有限公司 | The Wiring structure of the pin configuration of manganese copper diverter, pcb board and pcb board |
| CN109324307A (en) * | 2018-09-02 | 2019-02-12 | 青岛鼎信通讯科技有限公司 | A kind of electric energy meter Hz noise counteracting method based on PCB |
| CN109557364A (en) * | 2018-11-30 | 2019-04-02 | 厦门宏发电力电器有限公司 | It is a kind of can anti-magnetic interference electronic electric energy meter |
| CN109696580A (en) * | 2018-11-15 | 2019-04-30 | 厦门宏发电力电器有限公司 | A kind of current divider that can resist magnetic interference and its relay and electronic electric energy meter |
| CN110320404A (en) * | 2019-08-01 | 2019-10-11 | 桐乡市伟达电子有限公司 | A kind of analog-to-digital conversion sensor |
| WO2021169456A1 (en) * | 2020-02-28 | 2021-09-02 | 浙江永泰隆电子股份有限公司 | Shunt lead structure, electric power instrument and method for manufacturing shunt lead structure |
| CN113358904A (en) * | 2021-04-30 | 2021-09-07 | 南方电网数字电网研究院有限公司 | Anti-interference device for electric energy meter and wiring method thereof |
| WO2023179181A1 (en) * | 2022-03-25 | 2023-09-28 | 桐乡市伟达电子有限公司 | Anti-magnetic field shunt, electric power meter, and manufacturing method for anti-magnetic field shunt |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107345977A (en) * | 2017-07-03 | 2017-11-14 | 杭州海兴电力科技股份有限公司 | The Wiring structure of the pin configuration of manganese copper diverter, pcb board and pcb board |
| CN107345977B (en) * | 2017-07-03 | 2020-01-17 | 杭州海兴电力科技股份有限公司 | Lead structure of manganin shunt, PCB and wiring structure of PCB |
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| CN109557364A (en) * | 2018-11-30 | 2019-04-02 | 厦门宏发电力电器有限公司 | It is a kind of can anti-magnetic interference electronic electric energy meter |
| CN110320404A (en) * | 2019-08-01 | 2019-10-11 | 桐乡市伟达电子有限公司 | A kind of analog-to-digital conversion sensor |
| WO2021169456A1 (en) * | 2020-02-28 | 2021-09-02 | 浙江永泰隆电子股份有限公司 | Shunt lead structure, electric power instrument and method for manufacturing shunt lead structure |
| CN113358904A (en) * | 2021-04-30 | 2021-09-07 | 南方电网数字电网研究院有限公司 | Anti-interference device for electric energy meter and wiring method thereof |
| WO2023179181A1 (en) * | 2022-03-25 | 2023-09-28 | 桐乡市伟达电子有限公司 | Anti-magnetic field shunt, electric power meter, and manufacturing method for anti-magnetic field shunt |
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| CN107271744B (en) | 2020-03-24 |
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