CN202177647U - Alternating magnetic field resistant manganin diverter - Google Patents
Alternating magnetic field resistant manganin diverter Download PDFInfo
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- CN202177647U CN202177647U CN2011202936681U CN201120293668U CN202177647U CN 202177647 U CN202177647 U CN 202177647U CN 2011202936681 U CN2011202936681 U CN 2011202936681U CN 201120293668 U CN201120293668 U CN 201120293668U CN 202177647 U CN202177647 U CN 202177647U
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- diverter
- magnetic field
- alternating magnetic
- copper
- sampling
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Abstract
The utility model provides an alternating magnetic field resistant manganin diverter, mainly comprising a manganin resistor body and sampling endpoints of the diverter, wherein one side of the diverter is provided with a conductor, both sides of the diverter are respectively provided with one sampling endpoint, the sampling endpoints are connected with sampling lines, the sampling line at one side of the diverter extends to the other side to divide the manganin resistor body into two portions with the same area, and is fixed with the sampling line at the other side, and then the sampling lines are spirally intertwisted, and extend. The alternating magnetic field resistant maganin diverter enables the sampling line near one side of the manganin resistor to extend near the other side of the manganin resistor, the manganin resistor is averagely divided into two portions with the same area, such that according to the Faraday electromagnetic induction law, when the diverter is influenced by the external alternating magnetic field, an induction voltage and an electromotive force are generated on the sampling line extending near the other side of the manganin resistor, and are balanced with the induction voltage and the electromotive force generated on the manganin resistor, thereby preventing the alternating magnetic field from generating influence on the diverter.
Description
Technical field
The utility model 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%.
The utility model content
The purpose of the utility model is to provide 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 utility model 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 utility model; 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 the sample line of the utility model 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 the sample line of the utility model;
Fig. 3 is the positional structure synoptic diagram of the welding position salient point on the shunt of the utility model;
Fig. 4 is shunt 1 synoptic diagram of the prior art of the utility model;
Fig. 5 is shunt 2 synoptic diagram of the prior art of the utility model.
Embodiment
Combine accompanying drawing that the utility model is done further to describe 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.
The anti-alternating magnetic field manganese copper diverter of the utility model 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: the anti-alternating magnetic field manganese copper diverter of the utility model has obviously weakened the interference of alternating magnetic field; In electric energy meter, carry the mutual inductor of usefulness; 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 (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202936681U CN202177647U (en) | 2011-08-12 | 2011-08-12 | Alternating magnetic field resistant manganin diverter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202936681U CN202177647U (en) | 2011-08-12 | 2011-08-12 | Alternating magnetic field resistant manganin diverter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202177647U true CN202177647U (en) | 2012-03-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202936681U Expired - Fee Related CN202177647U (en) | 2011-08-12 | 2011-08-12 | Alternating magnetic field resistant manganin diverter |
Country Status (1)
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| CN (1) | CN202177647U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102323459A (en) * | 2011-08-12 | 2012-01-18 | 桐乡市伟达电子有限公司 | Alternating magnetic field-resistant manganin current divider |
| CN102854356A (en) * | 2012-09-27 | 2013-01-02 | 杭州炬华科技股份有限公司 | Circuit for resisting external magnetic field interferences by adopting dual-manganese-copper design |
| EP2924448A4 (en) * | 2012-11-26 | 2016-07-20 | Xiamen Hongfa Electric Power Controls Co Ltd | Electronic electric meter resistant to alternating magnetic field interferences |
| 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 |
| CN112614745A (en) * | 2020-12-31 | 2021-04-06 | 华中科技大学 | Rotary electromagnetic relay suitable for magnetic field environment |
| 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 |
-
2011
- 2011-08-12 CN CN2011202936681U patent/CN202177647U/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102323459A (en) * | 2011-08-12 | 2012-01-18 | 桐乡市伟达电子有限公司 | Alternating magnetic field-resistant manganin current divider |
| 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 |
| 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 |
| CN102854356A (en) * | 2012-09-27 | 2013-01-02 | 杭州炬华科技股份有限公司 | Circuit for resisting external magnetic field interferences by adopting dual-manganese-copper design |
| CN102854356B (en) * | 2012-09-27 | 2015-08-05 | 杭州炬华科技股份有限公司 | Two copper-manganese is adopted to design the circuit of anti-external magnetic field interference |
| EP2924448A4 (en) * | 2012-11-26 | 2016-07-20 | Xiamen Hongfa Electric Power Controls Co Ltd | Electronic electric meter resistant to alternating magnetic field interferences |
| 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 |
| CN112614745A (en) * | 2020-12-31 | 2021-04-06 | 华中科技大学 | Rotary electromagnetic relay suitable for magnetic field environment |
| CN112614745B (en) * | 2020-12-31 | 2022-04-26 | 华中科技大学 | Rotary electromagnetic relay suitable for magnetic field environment |
| 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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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120328 Termination date: 20140812 |
|
| EXPY | Termination of patent right or utility model |