CN202837366U - Symmetric-structure diverter capable of resisting alternate magnetic field interference - Google Patents
Symmetric-structure diverter capable of resisting alternate magnetic field interference Download PDFInfo
- Publication number
- CN202837366U CN202837366U CN201220438460.9U CN201220438460U CN202837366U CN 202837366 U CN202837366 U CN 202837366U CN 201220438460 U CN201220438460 U CN 201220438460U CN 202837366 U CN202837366 U CN 202837366U
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- sampling resistor
- resistor body
- sampling
- magnetic field
- shunt
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Abstract
The utility model discloses a symmetric-structure diverter capable of resisting alternate magnetic field interference. The diverter comprises diverter connecting parts connected with a lead. The diverter connecting parts are connected with a sampling resistor body. Two sampling terminal points are arranged on the sampling resistor body. Two sampling wires symmetrically distributed on the two sides of the sampling resistor body are connected on each sampling terminal point. The lower parts of the sampling wires are attached on the surface of the sampling resistor body while the upper parts pass through the sampling resistor body and extend in a spiral twisting way. The diverter provided by the utility model has the advantages of reasonable structure, simple production technology, strong magnetic field interference resisting capabilities, 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 only adopts two sample line, and trend, the winding of sample line and the position of the end points of sampling there is not specific (special) requirements, 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 of the symmetrical structure that the interference performance of anti-alternating magnetic field is strong disturbs shunt.
Technical solution of the present utility model is:
The anti-alternating magnetic field of a kind of symmetrical structure 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 sampling resistor body is provided with two sampling end points, be connected with two sample line that are symmetrically distributed in respectively sampling resistor body both sides on each sampling end points, sample line bottom applying sampling resistor surface, the top of sample line pass sampling resistor body, the stranded extension of spiral.
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.
Sample line passes the sampling resistor body region the fastening thermoplastic piece that sample line is fixed is set.
Two sample line of the every side of sampling resistor body form a U-shaped structure.
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.
Fig. 2 is the rear view of Fig. 1.
Embodiment
The anti-alternating magnetic field of a kind of symmetrical structure disturbs shunt, comprise the shunt coupling part 1,6 that is connected with wire 3, the shunt coupling part is connected with sampling resistor body 2, the sampling resistor body is provided with two sampling end points 8,9, be connected with two sample line 5,11 and 10,7 that are symmetrically distributed in respectively sampling resistor body both sides on each sampling end points, sample line bottom applying sampling resistor surface, the top of sample line pass sampling resistor body, the stranded extension of spiral.
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.
Sample line passes the sampling resistor body region the fastening thermoplastic piece 4 that sample line is fixed is set.Two sample line of the every side of sampling resistor body form a U-shaped structure.
Claims (4)
1. the anti-alternating magnetic field of symmetrical structure 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 sampling resistor body is provided with two sampling end points, be connected with two sample line that are symmetrically distributed in respectively sampling resistor body both sides on each sampling end points, sample line bottom applying sampling resistor surface, the top of sample line pass sampling resistor body, the stranded extension of spiral.
2. the anti-alternating magnetic field of symmetrical structure 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. the anti-alternating magnetic field of symmetrical structure according to claim 1 and 2 disturbs shunt, and it is characterized in that: sample line passes the sampling resistor body region the fastening thermoplastic piece that sample line is fixed is set.
4. the anti-alternating magnetic field of symmetrical structure according to claim 1 and 2 disturbs shunt, it is characterized in that: two sample line of the every side of sampling resistor body form a U-shaped structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220438460.9U CN202837366U (en) | 2012-08-31 | 2012-08-31 | Symmetric-structure diverter capable of resisting alternate magnetic field interference |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220438460.9U CN202837366U (en) | 2012-08-31 | 2012-08-31 | Symmetric-structure diverter capable of resisting alternate magnetic field interference |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202837366U true CN202837366U (en) | 2013-03-27 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220438460.9U Expired - Lifetime CN202837366U (en) | 2012-08-31 | 2012-08-31 | Symmetric-structure diverter capable of resisting alternate magnetic field interference |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202837366U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108226631A (en) * | 2017-12-27 | 2018-06-29 | 南昌市科陆智能电网科技有限公司 | A kind of single-phase measurement module of anti-magnetic interference |
-
2012
- 2012-08-31 CN CN201220438460.9U patent/CN202837366U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108226631A (en) * | 2017-12-27 | 2018-06-29 | 南昌市科陆智能电网科技有限公司 | A kind of single-phase measurement module of anti-magnetic interference |
| CN108226631B (en) * | 2017-12-27 | 2024-02-23 | 深圳市科陆电子科技股份有限公司 | Single-phase metering module for resisting magnetic field interference |
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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 YONGAN 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 YONGAN ELECTRONIC TECHNOLOGY Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130327 |