CN202661520U - Anti-alternating magnetic field interference shunt - Google Patents
Anti-alternating magnetic field interference shunt Download PDFInfo
- Publication number
- CN202661520U CN202661520U CN 201220261388 CN201220261388U CN202661520U CN 202661520 U CN202661520 U CN 202661520U CN 201220261388 CN201220261388 CN 201220261388 CN 201220261388 U CN201220261388 U CN 201220261388U CN 202661520 U CN202661520 U CN 202661520U
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- Prior art keywords
- shunt
- sampling
- magnetic field
- alternating magnetic
- sample line
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- Expired - Lifetime
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Abstract
The utility model discloses an anti-alternating magnetic field interference shunt which comprises a shunt connecting part connected with a lead. The shunt connecting part is connected with a sampling resistor body; the lower parts of two sampling lines are fixedly arranged in a sampling line fixed support, the upper parts of the two sampling lines penetrate out of the sampling line fixed support and extend in a spirally-twisted manner, and the lower ends of the two sampling lines are respectively connected with two sampling end points of the sampling resistor body. The anti-alternating magnetic field interference shunt has the advantages of reasonable structure, simple production process, strong magnetic field interference resistance capability, simple principle and ingenious application.
Description
Technical field
The utility model relates to a kind of electrical measurement element, and especially a kind of anti-alternating magnetic field disturbs shunt.
Background technology
Shunt is widely used in enlarging the instrument measurement range of current, and the sampling that can be used for communication system, complete electronic set, measurement instrument, robotization control etc. are used detects.The key property of shunt is a low resistance device, is provided with sampling end on it.The principle of shunt is by sample line the voltage of the electric current generation of the shunt resistance of flowing through to be sampled, traditional shunt does not have specific (special) requirements to the winding of sample line and the position of sampling end points, can accurately sample to voltage, electric current under normal circumstances in this shunt ground, but in the situation of the interference that is subject to extraneous alternating magnetic field, the precision of its sampling is subject to larger impact, can't work.
Shunt is to be widely used in voltage in the various instrument and meters, the high precision components of current sample, especially relate to the shunt for the sampling element of electronic electric energy meter metering electric energy, the power voltage supply that electric current produces by the pressure drop of shunt resistive element can be shown the metering sampling, its curent change scope is larger, in order to reduce the power consumption of heating and reduction itself, the resistive element resistance of shunt is less, the voltage that produces is generally the millivolt level, therefore not only easily be subjected to the transformer of self usefulness in the electric energy meter, the mutual inductor alternating magnetic field disturbs, and more can be subject to outside alternating magnetic field and disturb and cause the sampled signal can not the accurate-metering electric energy.From the operational effect of reality, such interference phenomenon can cause the consequence of two kinds of especially severes, is a kind ofly disturbed the electric energy meter normal operation by some lawless persons with alternating magnetic field, thereby reaches the purpose of stealing; Another kind is that metering is incorrect, even in the non-electric situation of user, electric energy meter also can measure, and causes economic dispute.
Summary of the invention
It is a kind of rational in infrastructure that the purpose of this utility model is to provide, and the anti-alternating magnetic field that the interference performance of anti-alternating magnetic field is strong disturbs shunt.
Technical solution of the present utility model is:
A kind of anti-alternating magnetic field disturbs shunt, it is characterized in that: comprise the shunt coupling part that is connected with wire, the shunt coupling part is connected with the sampling resistor body, the bottom of two sample line is fixed in the sample line fixed support, the top of two sample line passes sampling fixed support, the stranded extension of spiral, and the lower end of two sample line is connected with two sampling end points of sampling resistor body respectively.
Sample line is the electric conductor that produces induced voltage and electromotive force in alternating magnetic field, this electric conductor is corresponding with the sampling section of shunt resistive element in size, shape, position, produce the induced voltage that produces on one and the sampling resistor body and induced voltage and the electromotive force of electromotive force opposite direction, and the induced voltage that produces on the sampling resistor body and electromotive force balance each other.
Fixed support is fixed on the working of plastics on the sampling resistor body for fitting.The bottom of two sample line is fixed in the sample line fixed support, takes the shape of the letter U.
The utility model is rational in infrastructure, and production technology is simple, and diamagnetic interference performance is strong, and principle is simple, uses ingenious.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 disturbed, shunt because certainly exist certain area, also certainly led to induced voltage and electromotive force as electric conductor, and this is the reason that traditional shunt is disturbed by alternating magnetic field easily; The utility model utilizes sample line to make in addition a meeting produces induced voltage and electromotive force in alternating magnetic field electric conductor dexterously, this electric conductor is corresponding with the sampling section of shunt resistive element on size, shape, position, produce induced voltage and the electromotive force of an opposite direction, can balance each other with the induced voltage and the electromotive force that produce on traditional shunt, can prevent that alternating magnetic field from disturbing the sampling of shunt.
Description of drawings
The utility model is described in further detail below in conjunction with drawings and Examples.
Fig. 1 is the structural representation of an embodiment of the utility model.
Embodiment
A kind of anti-alternating magnetic field disturbs shunt, comprise the shunt coupling part 1,7 that is connected with wire 4, the shunt coupling part is connected with sampling resistor body 2, two sample line 5,6 bottom are fixed in the sample line fixed support 3, two sample line 5,6 top pass sampling fixed support, the stranded extension of spiral, and the lower end of two sample line is connected with two sampling end points 9,8 of sampling resistor body respectively.
Sample line is the electric conductor that produces induced voltage and electromotive force in alternating magnetic field, this electric conductor is corresponding with the sampling section of shunt resistive element in size, shape, position, produce the induced voltage that produces on one and the sampling resistor body and induced voltage and the electromotive force of electromotive force opposite direction, and the induced voltage that produces on the sampling resistor body and electromotive force balance each other.
Fixed support is fixed on the working of plastics on the sampling resistor body for fitting.The bottom of two sample line is fixed in the sample line fixed support, takes the shape of the letter U, and makes serviceability better.
Claims (4)
1. an anti-alternating magnetic field disturbs shunt, it is characterized in that: comprise the shunt coupling part that is connected with wire, the shunt coupling part is connected with the sampling resistor body, the bottom of two sample line is fixed in the sample line fixed support, the top of two sample line passes sampling fixed support, the stranded extension of spiral, and the lower end of two sample line is connected with two sampling end points of sampling resistor body respectively.
2. anti-alternating magnetic field according to claim 1 disturbs shunt, it is characterized in that: sample line is for producing the electric conductor of induced voltage and electromotive force in alternating magnetic field, this electric conductor is corresponding with the sampling section of shunt resistive element in size, shape, position, produce the induced voltage that produces on one and the sampling resistor body and induced voltage and the electromotive force of electromotive force opposite direction, and the induced voltage that produces on the sampling resistor body and electromotive force balance each other.
3. anti-alternating magnetic field according to claim 1 and 2 disturbs shunt, it is characterized in that: fixed support is fixed on the working of plastics on the sampling resistor body for fitting.
4. anti-alternating magnetic field according to claim 1 and 2 disturbs shunt, and it is characterized in that: the bottom of two sample line is fixed in the sample line fixed support, takes the shape of the letter U.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220261388 CN202661520U (en) | 2012-06-05 | 2012-06-05 | Anti-alternating magnetic field interference shunt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220261388 CN202661520U (en) | 2012-06-05 | 2012-06-05 | Anti-alternating magnetic field interference shunt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202661520U true CN202661520U (en) | 2013-01-09 |
Family
ID=47456418
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220261388 Expired - Lifetime CN202661520U (en) | 2012-06-05 | 2012-06-05 | Anti-alternating magnetic field interference shunt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202661520U (en) |
Cited By (1)
| 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 |
-
2012
- 2012-06-05 CN CN 201220261388 patent/CN202661520U/en not_active Expired - Lifetime
Cited By (1)
| 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 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Qidong City, Jiangsu province 226200 Nantong City Lin Yang Lu No. 666 Patentee after: JIANGSU LINYANG ENERGY CO., LTD. Patentee after: Anhui Yong'an Electronic Technology Co., Ltd. Address before: Qidong City, Jiangsu province 226200 Nantong City Lin Yang Lu No. 666 Patentee before: Jiangsu Linyang Electronics Co., Ltd. Patentee before: Anhui Yong'an Electronic Technology Co., Ltd. |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20210423 Address after: No.188, Tianyuan East Road, Science Park, Jiangning District, Nanjing, Jiangsu 210000 Patentee after: Nanjing Linyang Electric Co.,Ltd. Address before: Qidong City, Jiangsu province 226200 Nantong City Lin Yang Lu No. 666 Patentee before: JIANGSU LINYANG ENERGY Co.,Ltd. Patentee before: ANHUI YONGAN ELECTRONIC TECHNOLOGY Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130109 |
|
| CX01 | Expiry of patent term |