CN103439547A - Intelligent electric meter relay support assembly capable of eliminating power frequency magnetic field interference - Google Patents
Intelligent electric meter relay support assembly capable of eliminating power frequency magnetic field interference Download PDFInfo
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- CN103439547A CN103439547A CN2013104126644A CN201310412664A CN103439547A CN 103439547 A CN103439547 A CN 103439547A CN 2013104126644 A CN2013104126644 A CN 2013104126644A CN 201310412664 A CN201310412664 A CN 201310412664A CN 103439547 A CN103439547 A CN 103439547A
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Abstract
The invention provides a support assembly for fixing relay current sampling wires. The support assembly comprises a support and a buckle body, wherein the support is T-shaped and is provided with a square clamping groove in the bottom, a U-shaped groove and a rectangular hole in the middle and a square groove and two symmetric square buckling holes in the top end, and the U-shaped groove is communicated with the square groove so as to realize internal wiring. After being led out of a manganin distribution tab, two current sampling wires of a relay meet the support at the shortest distance, are led out of an outlet hole in the top of the support after being wired according to the direction of a guide groove in the support and are welded on a circuit board of an electric meter. The sampling wires form two sections of enveloping surfaces in the support and generate induced currents with opposite directions, so that the interference of a power frequency magnetic field to the metering precision of a current signal is eliminated, and the current and voltage on manganin are accurately sampled.
Description
Technical field
The present invention relates to relay sample line stationary installation in a kind of electric energy meter, particularly relate to a kind of bracket component.
Background technology
The electric energy meter quality is concerning the series of problems such as huge numbers of families' use and power grid security, in use procedure, electric energy meter field is attacked because of high-intensity magnetic field, the fault such as can cause that blank screen, on-load switch maloperation and zero load are had good luck, so state net company requires electric energy meter will keep correct output under the power frequency magnetic field of 0.5mT.In bulk article, the trend of line is difficult to control mostly, meeting cutting magnetic field on multiple directions, and generation current.During the sample line cutting magnetic field, electromagnetic field can, because of the direction of coiling, induce the electric current of different directions.Usually such electric current is lasting and regular, can't remove by filter circuit.The relay sample line is from the copper-manganese splitter out the time, and two lines become parastate, have formed certain envelope area coil between two wires, easily produce induction current, this induction current is subject to the effect of external magnetic field, can affect the current sample of electric energy meter, affects measuring accuracy.
Summary of the invention
Technical matters to be solved by this invention is that a kind of processing simple in structure, convenient and the bracket fixing device, particularly a kind of bracket buckle device installed are provided for above-mentioned existing present situation.
The present invention solves the problems of the technologies described above adopted technical scheme: a kind of bracket component, comprise support and button, and it is characterized in that: support is T-shape, and a square draw-in groove is arranged at bottom, and bracket component itself is fixed on relay.There are a U-shaped groove and a slot in centre, and there is the square fastening hole of a square groove and two symmetries on top, and U-shaped groove is communicated with square groove for inner cabling.In the middle of top, half circumferential notch is arranged, for drawing sample line.Frame bottom has the square fastening hole of two symmetries, and on bracket buckle, same position has respectively the projection of two symmetries, for fastening the fastening hole on support.Support and button should leave gap after fastening, and can walk wire.After the relay sample line enters support, separate the parallel two ends that enter U-shaped groove, after square groove, intersect and meet at semicircle indentation, there, draw after winding.
Compared with prior art, feature of the present invention is: owing to adopting said structure, back-roll that two sample lines are intersected on equal plane forms with equivalent envelope circle area, and rightabout envelope coil direction, produce contrary induction current, the flow direction that two induction currents pass through is contrary at grade, and then cancels out each other, eliminate the interference of power frequency magnetic field to the measuring accuracy of current signal, realize the accurate sampling to the current/voltage on the copper-manganese sheet.
The accompanying drawing explanation
Fig. 1, the 2nd, structural representation of the present invention.
Embodiment
Below in conjunction with accompanying drawing and embodiment, the present invention is described in further detail:
Bracket buckle of the present invention as shown in Figure 1, comprises support and button, and its medium-height trestle is the support that is T-shape, and button is the bracket buckle that is T-shape.Support is identical with the button Outside Dimensions.The button bottom is symmetrical projection (3,4), and on support, corresponding positions is equipped with symmetrical button hole (5,6), and corresponding projection (9,10) is arranged at the button top, and on support, relevant position is button hole (7,8).As shown in Figure 2, support and button are fixed on copper-manganese splitter (11) by the square draw-in groove in bottom, sample line (14,15) is from the copper-manganese splitter is drawn, separate in the parallel U-shaped groove (12) that enters support, in cross-entry square groove (13), after again converging, from semicircle breach (16), mutually be wound around and draw after U-shaped groove top is converged.
Claims (2)
1. a fixed relay current sampling line bracket component.Comprise support and button, it is characterized in that: support is T-shape, and a square draw-in groove is arranged at bottom, and bracket component itself is fixed on relay.There is a U-shaped groove centre, and there is a square groove on top, and U-shaped groove is communicated with square groove for inner cabling.In the middle of top, a semicircle breach is arranged, for drawing sample line.The square fastening hole of two symmetries is respectively arranged at cantilever tip and bottom, and on button, same position has respectively the projection of two symmetries, for fastening the fastening hole on support.After support and button close, gap should be left, wire can be walked.The relay sample line, from the copper-manganese splitter is drawn, separates the parallel support gathering sill that enters, and after U-shaped groove, interlocks and enters square groove, after converging, from semicircle indentation, there, draws.
2. bracket buckle as claimed in claim 1, it is characterized in that: support and button are T-shaped, and frame bottom has square draw-in groove, and there is U-shaped groove at middle part, and cantilever tip has square groove, and U-shaped groove is communicated with square groove, and cantilever tip has the circular arc opening.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310412664.4A CN103439547B (en) | 2013-09-12 | 2013-09-12 | Solve the intelligent electric meter relay bracket component of power frequency magnetic field interference |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310412664.4A CN103439547B (en) | 2013-09-12 | 2013-09-12 | Solve the intelligent electric meter relay bracket component of power frequency magnetic field interference |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103439547A true CN103439547A (en) | 2013-12-11 |
| CN103439547B CN103439547B (en) | 2017-07-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310412664.4A Active CN103439547B (en) | 2013-09-12 | 2013-09-12 | Solve the intelligent electric meter relay bracket component of power frequency magnetic field interference |
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| CN (1) | CN103439547B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107621561A (en) * | 2017-09-07 | 2018-01-23 | 宁波三星医疗电气股份有限公司 | A kind of antimagnetic electric energy meter of current sample power frequency |
| CN111693769A (en) * | 2019-03-15 | 2020-09-22 | 宁波三星智能电气有限公司 | Electric energy meter |
| CN111830300A (en) * | 2019-04-23 | 2020-10-27 | 宁波三星智能电气有限公司 | Electric energy meter |
| 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 |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB190919277A (en) * | 1908-09-08 | 1909-12-16 | Cfcmug | Improvements in Electric Meters of the Induction Type. |
| CN201497772U (en) * | 2009-05-31 | 2010-06-02 | 潘兴华 | Star-shaped current sensor structure used for metering gauge |
| CN202305613U (en) * | 2011-10-28 | 2012-07-04 | 钜泉光电科技(上海)股份有限公司 | Manganin electric energy meter |
| CN102854347A (en) * | 2012-08-09 | 2013-01-02 | 俞敏 | Electric energy meter and current sampling device thereof |
| CN202870138U (en) * | 2012-09-14 | 2013-04-10 | 深圳市金正方科技有限公司 | Manganin shunt and electronic Watt-hour meter |
| CN203798849U (en) * | 2013-09-12 | 2014-08-27 | 南京能瑞自动化设备股份有限公司 | Intelligent electric meter relay support assembly for resolving power-frequency magnetic field interference |
-
2013
- 2013-09-12 CN CN201310412664.4A patent/CN103439547B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB190919277A (en) * | 1908-09-08 | 1909-12-16 | Cfcmug | Improvements in Electric Meters of the Induction Type. |
| CN201497772U (en) * | 2009-05-31 | 2010-06-02 | 潘兴华 | Star-shaped current sensor structure used for metering gauge |
| CN202305613U (en) * | 2011-10-28 | 2012-07-04 | 钜泉光电科技(上海)股份有限公司 | Manganin electric energy meter |
| CN102854347A (en) * | 2012-08-09 | 2013-01-02 | 俞敏 | Electric energy meter and current sampling device thereof |
| CN202870138U (en) * | 2012-09-14 | 2013-04-10 | 深圳市金正方科技有限公司 | Manganin shunt and electronic Watt-hour meter |
| CN203798849U (en) * | 2013-09-12 | 2014-08-27 | 南京能瑞自动化设备股份有限公司 | Intelligent electric meter relay support assembly for resolving power-frequency magnetic field interference |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107621561A (en) * | 2017-09-07 | 2018-01-23 | 宁波三星医疗电气股份有限公司 | A kind of antimagnetic electric energy meter of current sample power frequency |
| CN111693769A (en) * | 2019-03-15 | 2020-09-22 | 宁波三星智能电气有限公司 | Electric energy meter |
| CN111830300A (en) * | 2019-04-23 | 2020-10-27 | 宁波三星智能电气有限公司 | Electric energy meter |
| CN111830300B (en) * | 2019-04-23 | 2023-08-18 | 宁波三星智能电气有限公司 | Electric energy meter |
| 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 |
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| Publication number | Publication date |
|---|---|
| CN103439547B (en) | 2017-07-18 |
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Address after: Yin Xiangyan moling streets Lake Road Jiangning District of Nanjing City, Jiangsu Province, No. 201 211102 Applicant after: Nanjing Nengrui Automation Equipment Co., Ltd. Address before: 210046, Jiangsu, Qixia Province Yao street, Gan family side, No. 108 East, 2, 3 East, Nanjing Applicant before: Nanjing Nengrui Automation Equipment Co., Ltd. |
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Address after: Yongning road in Jiangning District of Nanjing City, Jiangsu Province, No. 9 211100 Applicant after: Nanjing Nengrui Automation Equipment Co., Ltd. Address before: Yin Xiangyan moling streets Lake Road Jiangning District of Nanjing City, Jiangsu Province, No. 201 211102 Applicant before: Nanjing Nengrui Automation Equipment Co., Ltd. |
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