CN102323459A - Alternating magnetic field-resistant manganin current divider - Google Patents
Alternating magnetic field-resistant manganin current divider Download PDFInfo
- Publication number
- CN102323459A CN102323459A CN201110231609A CN201110231609A CN102323459A CN 102323459 A CN102323459 A CN 102323459A CN 201110231609 A CN201110231609 A CN 201110231609A CN 201110231609 A CN201110231609 A CN 201110231609A CN 102323459 A CN102323459 A CN 102323459A
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- China
- Prior art keywords
- magnetic field
- alternating magnetic
- copper
- manganese
- shunt
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/20—Modifications of basic electric elements for use in electric measuring instruments; Structural combinations of such elements with such instruments
- G01R1/203—Resistors used for electric measuring, e.g. decade resistors standards, resistors for comparators, series resistors, shunts
Abstract
The invention designs an alternating magnetic field-resistant manganin current divider, which mainly comprises a manganin resistor and sampling end points of a current divider, wherein a wire is arranged on one side of the current divider; a sampling end point is arranged on both sides of the current divider and is connected with a sampling line; the sampling line on one side is pulled to the other side; and the manganin resistor is divided into two regions of the same area; meanwhile, the sampling line is fixed with the sampling line on the side and the two sampling lines are spirally stranded to extend. In the alternating magnetic field-resistant manganin current divider, the sampling line on the side close to the manganin resistor is pulled to the other side close to the manganin resistor, and the manganin resistor is averagely divided into two regions of the same area, so that induction voltage and electromotive force are produced on the sampling line on the other side close to the manganin resistor according to faraday law of electromagnetic induction when the current divider is interfered by an external alternating magnetic field and are balanced with the induction voltage and the electromotive force produced on the manganin resistor, namely the interference of the alternating magnetic field on the current divider can be prevented.
Description
Technical field
The present invention relates to the electrical measurement element, especially a kind of anti-alternating magnetic field manganese copper diverter.
Background technology
Shunt extensively applies to enlarge the instrument measurement range of current, can be used for the backflow to the power supply of communication system, complete electronic set, robotization control etc., and current limliting, current-sharing sampling detect.The key property of shunt is a low resistance device, and it is provided with sampling end.Traditional shunt adopts the voltage of sample line to the manganese copper diverter of flowing through, and electric current is sampled, and the winding of sample line and the position of sampling end points are not had specific (special) requirements.Adopt this method to carry out voltage under the normal condition, current sample is less than influence, but this shunt receives the interference of extraneous alternating magnetic field easily, makes the precision of its sampling receive bigger influence, can't operate as normal.
Manganese copper diverter is widely used in voltage in the various instrument and meters, and the high precision components of current sample especially relates to and is used for the manganese copper diverter that electronic electric energy meter measures the sampling element of electric energy; The power voltage supply that electric current produces through the pressure drop of shunt copper-manganese resistive element can show the metering sampling, and the voltage that is produced is generally millivolt grade, receives the transformer of self usefulness in the electric energy meter especially easily, the interference of mutual inductor alternating magnetic field; And outside alternating magnetic field disturbs and cause sampled signal can not accurately measure electric energy, and particularly some stealing lawless persons disturb the electric energy meter operate as normal with alternating magnetic field, thus stealing.Utilize alternating magnetic field to disturb the normal error in dipping of electric energy meter through the test measuring and calculating, change along with the power of alternating magnetic field, maximum error can reach 100%.
Summary of the invention
The objective of the invention is provides a kind of simple in structure, the anti-alternating magnetic field manganese copper diverter that the interference performance of anti-alternating magnetic field is strong for the deficiency that solves above-mentioned technology.
In order to achieve the above object; The anti-alternating magnetic field manganese copper diverter that the present invention designed; Copper-manganese resistive element that it mainly comprises shunt and sampling end points are provided with lead in the wherein side of shunt, are equipped with a sampling end points in the shunt both sides near the copper-manganese resistive element; Be connected with sample line on the sampling end points; Wherein the sample line near copper-manganese resistive element one side is pulled near copper-manganese resistive element opposite side, is divided into two zones that area is identical to the copper-manganese resistive element, the fixing and stranded extension of spiral with the sample line of this side simultaneously.This design feature: simple in structure, can be according to Faraday's electromagnetic induction law, when alternating magnetic field passed conductor, conductor can produce induced voltage and electromotive force; When externally alternating magnetic field disturbs, be pulled near producing induced voltage and electromotive force on the sample line of copper-manganese resistive element opposite side, and with the copper-manganese resistive element on the induced voltage and the electromotive force that produce balance each other, can prevent that alternating magnetic field from disturbing the sampling of shunt.
In order to make lead, sample line more firm with being connected of shunt, on the splitter side end face, be provided with binding post with lead, sample line correspondence position, lead, sample line are fixed on the binding post through thermoplastic tube.
As optimization, be provided with welding position salient point at the sampling end place on shunt surface, make welding convenient, it is more accurate to locate, and better with sample line the copper-manganese resistive element is divided into two zones that area is identical.
The resulting anti-alternating magnetic field manganese copper diverter of the present invention; Near the copper-manganese resistive element wherein the sample line of a side be pulled near copper-manganese resistive element opposite side, the stranded and location with the sample line of this side simultaneously is again two stranded extensions of sample line spiral; Sample line is equally divided into two zones that area is identical to the copper-manganese resistive element of shunt simultaneously; Like this can be according to Faraday's electromagnetic induction law, when alternating magnetic field passed conductor, conductor can produce induced voltage and electromotive force; When externally alternating magnetic field disturbs, be pulled near producing induced voltage and electromotive force on the sample line of copper-manganese resistive element opposite side, and with copper-manganese resistance on the induced voltage and the electromotive force that produce balance each other, can prevent the interference of alternating magnetic field to shunt.On the shunt surface, be provided with welding position salient point, can make the welding location more accurate, sample line connects more firm; Simultaneously on the splitter side end face, be provided with binding post, and through thermoplastic tube sample line, lead fixed on binding post, more firm; Difficult drop-off, long service life.This in addition anti-alternating magnetic field manganese copper diverter, simple in structure, production technology is simple, and diamagnetic interference performance is strong.
Description of drawings
Fig. 1 is that sample line of the present invention is the structural representation of copper-manganese resistive element horizontal timesharing;
Structural representation when Fig. 2 divides copper-manganese resistive element skew symmetry equally for sample line of the present invention;
Fig. 3 is the positional structure synoptic diagram of the welding position salient point on the shunt of the present invention;
Fig. 4 is shunt 1 synoptic diagram of prior art of the present invention;
Fig. 5 is shunt 2 synoptic diagram of prior art of the present invention.
Embodiment
Combine accompanying drawing that the present invention is done further description through embodiment below.
Embodiment 1:
As shown in Figure 2; The anti-alternating magnetic field manganese copper diverter that present embodiment is described; It mainly comprises the copper-manganese resistive element 4 and sampling end points 8 of shunt 1, is provided with lead 3 in the wherein side of shunt 1, is equipped with a sampling end points 8 in shunt 1 both sides near copper-manganese resistive element 4; Be connected with sample line 2 on the sampling end points 8; Wherein the sample line 2 near copper-manganese resistive element 4 one sides is pulled near copper-manganese resistive element 4 opposite sides, is divided into two zones that area is identical to copper-manganese resistive element 4, fixes and the stranded extensions of spiral with the sample line 2 of this side simultaneously.
As shown in Figure 3, be provided with welding position salient point 5 at sampling end points 8 places on shunt 1 surface.On shunt 1 side end face, be provided with binding post 6 with lead 3, sample line 2 correspondence positions, lead 3, sample line 2 are fixed on the binding post 6 through thermoplastic tube 7.
Embodiment 2:
Anti-alternating magnetic field shunt as shown in Figure 1, that present embodiment is described, its sample line 2 is divided into two zones that area is identical to copper-manganese resistive element 4 horizontal.
Anti-alternating magnetic field manganese copper diverter of the present invention carries out test comparison with shunt like the prior art of Fig. 4, Fig. 5:
Test condition: on an electronic electric energy meter, possess temperature, resistance, alternating magnetic field apart under the identical situation of 10mm respectively to Fig. 1, it is following that Fig. 4, Fig. 5 shunt carry out test result:
| Alternating magnetic field (mT) | 100mT trueness error % | 50mT trueness error % |
| Fig. 4 shunt | 50％ | 25％ |
| Fig. 5 shunt | 30％ | 17％ |
| Fig. 1 shunt | 7.8％ | 4.3％ |
Add the thick radome of 1.0mm in shunting
| Alternating magnetic field (mT) | 100mT trueness error % | 50mT trueness error % |
| Fig. 4 shunt | ?19％ | 3.8％ |
| Fig. 5 shunt | ?10.2％ | 1.7％ |
| Fig. 1 shunt | ?0.0％ | 0.0％ |
Show from above-mentioned test findings: anti-alternating magnetic field manganese copper diverter of the present invention has obviously weakened the interference of alternating magnetic field, in electric energy meter, carries the mutual inductor of usefulness, and the alternating magnetic field that transformer produced can be ignored, and has solved interference problem technically.
Claims (3)
1. anti-alternating magnetic field manganese copper diverter; Copper-manganese resistive element that it mainly comprises shunt and sampling end points are provided with lead in the wherein side of shunt, it is characterized in that being equipped with in the shunt both sides near the copper-manganese resistive element sampling end points; Be connected with sample line on the sampling end points; Wherein the sample line of copper-manganese resistive element one side is pulled to copper-manganese resistive element opposite side, is divided into two zones that area is identical to the copper-manganese resistive element, the fixing and stranded extension of spiral with the sample line of this side simultaneously.
2. anti-alternating magnetic field manganese copper diverter according to claim 1 is characterized in that on the splitter side end face, being provided with binding post with lead, sample line correspondence position, and lead, sample line are fixed on the binding post through thermoplastic tube.
3. anti-alternating magnetic field manganese copper diverter according to claim 1 and 2 is characterized in that on the sampling endpoint location of shunt near the both side surface of copper-manganese resistive element, being provided with welding position salient point.
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110231609 CN102323459B (en) | 2011-08-12 | 2011-08-12 | Alternating magnetic field-resistant manganin current divider |
| DE112012000136.2T DE112012000136B4 (en) | 2011-08-12 | 2012-07-09 | Manganese copper shunt against alternating electromagnetic fields |
| PCT/CN2012/078382 WO2013023504A1 (en) | 2011-08-12 | 2012-07-09 | Alternating magnetic field-resistant manganin current divider |
| RU2013107723/28A RU2574317C2 (en) | 2011-08-12 | 2012-07-09 | Alternating magnetic field counteracting copper-magnesium shunt |
| ZA2013/01523A ZA201301523B (en) | 2011-08-12 | 2013-02-28 | Anti-alternating electromagnetic field management-copper shunt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110231609 CN102323459B (en) | 2011-08-12 | 2011-08-12 | Alternating magnetic field-resistant manganin current divider |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102323459A true CN102323459A (en) | 2012-01-18 |
| CN102323459B CN102323459B (en) | 2013-10-23 |
Family
ID=45451242
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110231609 Active CN102323459B (en) | 2011-08-12 | 2011-08-12 | Alternating magnetic field-resistant manganin current divider |
Country Status (4)
| Country | Link |
|---|---|
| CN (1) | CN102323459B (en) |
| DE (1) | DE112012000136B4 (en) |
| WO (1) | WO2013023504A1 (en) |
| ZA (1) | ZA201301523B (en) |
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102707115A (en) * | 2012-06-05 | 2012-10-03 | 江苏林洋电子股份有限公司 | Anti-alternating magnetic field interference current divider |
| CN102854347A (en) * | 2012-08-09 | 2013-01-02 | 俞敏 | Electric energy meter and current sampling device thereof |
| CN102854368A (en) * | 2012-09-27 | 2013-01-02 | 杭州炬华科技股份有限公司 | Manganin current sampling device resisting outside magnetic field interference |
| WO2013023504A1 (en) * | 2011-08-12 | 2013-02-21 | 浙江永泰隆电子有限公司 | Alternating magnetic field-resistant manganin current divider |
| CN103063891A (en) * | 2013-01-10 | 2013-04-24 | 浙江力辉电器有限公司 | Anti-interference intelligent electric meter and anti-interference method of intelligent electric meter |
| CN103076475A (en) * | 2013-01-10 | 2013-05-01 | 浙江力辉电器有限公司 | Anti-interference manganese-copper current divider |
| CN103176019A (en) * | 2013-03-23 | 2013-06-26 | 桐乡市伟达电子有限公司 | High-precision diverter |
| WO2014079238A1 (en) * | 2012-11-26 | 2014-05-30 | 厦门宏发电力电器有限公司 | Electronic electric meter resistant to alternating magnetic field interferences |
| CN103913609A (en) * | 2012-12-31 | 2014-07-09 | 深圳浩宁达仪表股份有限公司 | Measurement instrument free from effects of alternating external magnetic field and realization method thereof |
| CN104122426A (en) * | 2014-07-25 | 2014-10-29 | 桐乡市伟达电子有限公司 | High-precision sampling diverter and production method thereof |
| CN103257260B (en) * | 2012-10-24 | 2017-02-08 | 惠州市惠之声实业有限公司 | Method for resisting alternating magnetic field interference and sample resistor |
| CN107533087A (en) * | 2015-04-28 | 2018-01-02 | Koa株式会社 | Current sensing means |
| CN109613468A (en) * | 2018-12-29 | 2019-04-12 | 杭州明特科技有限公司 | Dosage compensation method/system, medium and processing equipment based on magnetic field influence amount |
| CN110836997A (en) * | 2019-11-26 | 2020-02-25 | 新沂市鑫洋电子有限公司 | Manganese-copper current divider with good electromagnetic compatibility and application thereof |
| CN110836988A (en) * | 2019-11-25 | 2020-02-25 | 新沂市鑫洋电子有限公司 | Manganese-copper current divider capable of resisting work magnetic interference and application thereof |
| RU197196U1 (en) * | 2019-12-11 | 2020-04-10 | Общество с ограниченной ответственностью "МИРТЕК" | Measuring shunt |
| 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 |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113687142B (en) * | 2021-08-26 | 2023-06-23 | 国网江西省电力有限公司供电服务管理中心 | DC electric energy metering module based on current divider |
| CN116449064B (en) * | 2023-03-12 | 2023-10-31 | 深圳市开步电子有限公司 | Shunt, electric equipment and energy storage equipment thereof |
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| CN201555873U (en) * | 2009-09-11 | 2010-08-18 | 朱卫明 | Multi-purpose copper-manganese diverter |
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| CH659895A5 (en) | 1983-06-09 | 1987-02-27 | Landis & Gyr Ag | ARRANGEMENT FOR MEASURING A CURRENT. |
| FR2884615B1 (en) * | 2005-04-13 | 2007-06-29 | Valeo Electronique Sys Liaison | DEVICE FOR MEASURING CURRENT, IN PARTICULAR A BATTERY |
| CN201429643Y (en) * | 2009-07-06 | 2010-03-24 | 山东山大奥太电气有限公司 | Novel diverter |
| CN102323459B (en) * | 2011-08-12 | 2013-10-23 | 桐乡市伟达电子有限公司 | Alternating magnetic field-resistant manganin current divider |
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2011
- 2011-08-12 CN CN 201110231609 patent/CN102323459B/en active Active
-
2012
- 2012-07-09 WO PCT/CN2012/078382 patent/WO2013023504A1/en active Application Filing
- 2012-07-09 DE DE112012000136.2T patent/DE112012000136B4/en active Active
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2013
- 2013-02-28 ZA ZA2013/01523A patent/ZA201301523B/en unknown
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| CN200976020Y (en) * | 2006-10-20 | 2007-11-14 | 深圳长城开发科技股份有限公司 | Current divider |
| CN101165496A (en) * | 2006-10-20 | 2008-04-23 | 深圳长城开发科技股份有限公司 | Flow divider |
| CN101097232A (en) * | 2007-03-30 | 2008-01-02 | 桐乡市伟达电子有限公司 | Forming method of current divider |
| CN201555873U (en) * | 2009-09-11 | 2010-08-18 | 朱卫明 | Multi-purpose copper-manganese diverter |
| CN202177647U (en) * | 2011-08-12 | 2012-03-28 | 桐乡市伟达电子有限公司 | Alternating magnetic field resistant manganin diverter |
Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013023504A1 (en) * | 2011-08-12 | 2013-02-21 | 浙江永泰隆电子有限公司 | Alternating magnetic field-resistant manganin current divider |
| CN102707115A (en) * | 2012-06-05 | 2012-10-03 | 江苏林洋电子股份有限公司 | Anti-alternating magnetic field interference current divider |
| CN102854347A (en) * | 2012-08-09 | 2013-01-02 | 俞敏 | Electric energy meter and current sampling device thereof |
| CN102854368A (en) * | 2012-09-27 | 2013-01-02 | 杭州炬华科技股份有限公司 | Manganin current sampling device resisting outside magnetic field interference |
| CN103257260B (en) * | 2012-10-24 | 2017-02-08 | 惠州市惠之声实业有限公司 | Method for resisting alternating magnetic field interference and sample resistor |
| WO2014079238A1 (en) * | 2012-11-26 | 2014-05-30 | 厦门宏发电力电器有限公司 | Electronic electric meter resistant to alternating magnetic field interferences |
| CN103913609A (en) * | 2012-12-31 | 2014-07-09 | 深圳浩宁达仪表股份有限公司 | Measurement instrument free from effects of alternating external magnetic field and realization method thereof |
| CN103076475A (en) * | 2013-01-10 | 2013-05-01 | 浙江力辉电器有限公司 | Anti-interference manganese-copper current divider |
| CN103063891B (en) * | 2013-01-10 | 2014-11-26 | 浙江力辉电器有限公司 | Anti-interference intelligent electric meter and anti-interference method of intelligent electric meter |
| CN103076475B (en) * | 2013-01-10 | 2015-01-07 | 浙江力辉电器有限公司 | Anti-interference manganese-copper current divider |
| CN103063891A (en) * | 2013-01-10 | 2013-04-24 | 浙江力辉电器有限公司 | Anti-interference intelligent electric meter and anti-interference method of intelligent electric meter |
| CN103176019A (en) * | 2013-03-23 | 2013-06-26 | 桐乡市伟达电子有限公司 | High-precision diverter |
| CN104122426A (en) * | 2014-07-25 | 2014-10-29 | 桐乡市伟达电子有限公司 | High-precision sampling diverter and production method thereof |
| CN107533087A (en) * | 2015-04-28 | 2018-01-02 | Koa株式会社 | Current sensing means |
| CN109613468A (en) * | 2018-12-29 | 2019-04-12 | 杭州明特科技有限公司 | Dosage compensation method/system, medium and processing equipment based on magnetic field influence amount |
| CN110836988A (en) * | 2019-11-25 | 2020-02-25 | 新沂市鑫洋电子有限公司 | Manganese-copper current divider capable of resisting work magnetic interference and application thereof |
| CN110836997A (en) * | 2019-11-26 | 2020-02-25 | 新沂市鑫洋电子有限公司 | Manganese-copper current divider with good electromagnetic compatibility and application thereof |
| RU197196U1 (en) * | 2019-12-11 | 2020-04-10 | Общество с ограниченной ответственностью "МИРТЕК" | Measuring shunt |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| RU2013107723A (en) | 2014-08-27 |
| DE112012000136T5 (en) | 2013-06-27 |
| WO2013023504A1 (en) | 2013-02-21 |
| CN102323459B (en) | 2013-10-23 |
| ZA201301523B (en) | 2014-06-25 |
| DE112012000136B4 (en) | 2019-02-21 |
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Address after: 314500 1-2 floors of 7 blocks, 320 Tongsheng Road, Fengming Street, Tongxiang City, Jiaxing City, Zhejiang Province Patentee after: Tongxiang Weida Electronics Co., Ltd. Address before: 314513 Zhongan Village, Zhouquan Town, Tongxiang City, Jiaxing City, Zhejiang Province Patentee before: Tongxiang Weida Electronics Co., Ltd. |
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