CN103076475B - Anti-interference manganese-copper current divider - Google Patents
Anti-interference manganese-copper current divider Download PDFInfo
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- CN103076475B CN103076475B CN201310008123.5A CN201310008123A CN103076475B CN 103076475 B CN103076475 B CN 103076475B CN 201310008123 A CN201310008123 A CN 201310008123A CN 103076475 B CN103076475 B CN 103076475B
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Abstract
The invention provides a manganese-copper current divider, which can be used for effectively reducing external magnetic field interference. The manganese-copper current divider comprises conducting strips on both sides, and a manganese-copper sampling strip, wherein the two ends of the manganese-copper sampling strip are provided with binding posts for connecting sampling lines respectively; the two ends of the manganese-copper sampling strip are connected with the conducting strips on both sides; the manganese-copper sampling strip is provided with three reference planes which are vertical pairwise in a space; the two ends of the manganese-copper sampling strip are symmetrically distributed on both sides by taking one reference plane as a center; and the projection area of the manganese-copper sampling strip on the central reference plane is larger than the projection areas of the manganese-copper sampling strip on the other two reference planes.
Description
Technical field
The present invention relates to shunt, especially relate to the manganese copper diverter be used from relay one in intelligent electric meter.
Background technology
Copper-manganese is metal that a kind of temperature coefficient is very little (namely the resistance variation with temperature of copper-manganese is substantially negligible, and the such as red copper temperature once resistance that often rises rises 4/1000ths).According to U=I*R, the R of copper-manganese is constant, so just can copper-manganese is connected in series in circuit, and the magnitude of voltage measuring copper-manganese two ends carrys out the size of feedback current.Relay moving plate exchanges with maximum 80A, the 220V of can arriving of the electric current that still exit connects, can not directly be measured circuit (the meter electricity charge circuit of intelligent electric meter) and metering circuit of the large voltage of this big current uses, the resistance that we generally design copper-manganese is about 100 micro-ohms to 1000 micro-ohms, the voltage at such manganese copper diverter two ends just only has 8 microvolts to 80 microvolts, and the signal of this microvolt level just can be used in metering and metering circuit.
The manganese copper diverter of existing structure comprises conducting strip and the copper-manganese sampling sheet of both sides, the two ends of copper-manganese sampling sheet are respectively equipped with the binding post for connecting sample line, the two ends of copper-manganese sampling sheet are connected with the conducting strip of both sides respectively, the conducting strip of side is connected on the exit of relay, copper-manganese sampling sheet is the plate construction of whole piece, the product of this structure is when there is magnetic interference in the external world, copper-manganese to sample microvolt signal just inaccurate, even when not having electric current, if there is magnetic interference in the external world, there is signal at the two ends of sample line, cause the metering of ammeter inaccurate.
Summary of the invention
In order to overcome the easily disturbed defect of above-mentioned existing manganese copper diverter, the invention provides the manganese copper diverter that can effectively reduce external magnetic field interference.
Jamproof manganese copper diverter provided by the present invention, comprise conducting strip and the copper-manganese sampling sheet of both sides, the two ends of copper-manganese sampling sheet are respectively equipped with the binding post for connecting sample line, the two ends of copper-manganese sampling sheet are connected with the conducting strip of both sides respectively, copper-manganese sampling sheet has in space in three perpendicular between two reference fields, copper-manganese sampling sheet two ends are in the symmetria bilateralis distribution centered by a reference field, and the projected area of copper-manganese sampling sheet on this center reference face is greater than the projected area of copper-manganese sampling sheet on another two reference fields.
The invention provides the technical conceive reducing magnetic interference, three reference fields in its space are virtual concepts, be intended to express the virtual plane that three of existing in space are vertical between any two, and these three planes are mutually vertical with the magnetic field of the change coming from three directions all respectively, like this by arranging a reference field perpendicular to it facing maximum direction, variation magnetic field, and copper-manganese sampling sheet is arranged its symmetrical two ends centered by this reference field, and these symmetrical two ends often to hold relative copper-manganese sampling sheet to extend area be in space maximum, the induction electromotive force that so maximum variation magnetic field produces at its two ends can be cancelled out each other, thus reduce the magnetic interference that direction, maximum variation magnetic field is brought, and then the annoyance level reduced its entirety, compare existing copper-manganese sampling sheet, at sectional area, under the prerequisite that the basic parameter such as volume and resistance value is constant, only by changing its configuration, just the interference to manganese copper diverter entirety can be reduced, obtain the measurement numerical value of accurate copper-manganese sampling sheet.
The preferred jamproof manganese copper diverter of the present invention, be three reference fields of copper-manganese sampling sheet be side reference field, horizontal reference field and vertical reference field respectively, copper-manganese sampling sheet two ends are in the symmetria bilateralis distribution centered by the reference field of side, the projected area of copper-manganese sampling sheet on the reference field of side is greater than the projected area of copper-manganese sampling sheet on horizontal reference field, and the projected area of copper-manganese sampling sheet on horizontal reference field is greater than the projected area on vertical reference field.Because the variation magnetic field detected in side direction in intelligent electric meter inside is maximum, by copper-manganese sampling sheet being adjusted to symmetrical centered by the opposite side reference field of two ends, just the magnetic interference from side direction significantly can be reduced.
The jamproof manganese copper diverter of the present invention is set to the conducting strip of both sides especially in the symmetria bilateralis distribution centered by the reference field of side.Conveniently can manufacture like this, improve speed of production, and production cost is down to minimum.
The further preferred jamproof manganese copper diverter of the present invention, that copper-manganese sampling sheet has the end being positioned at two ends, each end all has medial surface, lateral surface, leading flank, trailing flank, medial surface and the lateral surface of each end are parallel to each other, the medial surface of two ends is parallel to each other, the lateral surface of two ends is parallel to each other, and the leading flank of each end and trailing flank are parallel to each other and respectively perpendicular to interior lateral surface.Such copper-manganese sampling sheet two ends are symmetrical two pieces of parallel uniform tabulars of thickness, and its two ends all parallel with side reference field, can offset the magnetic interference from side direction to greatest extent.
The present invention is further preferred jamproof manganese copper diverter again, and it has the pars intermedia between two ends, and this pars intermedia has two front/rear ends paralleled, and front end face and leading flank are same plane, and rear end face and trailing flank are same plane.Between two lateral surfaces that such design makes the projected area of pars intermedia on horizontal reference field be limited to both ends spacing and both ends front and back sides between spacing, in other words
The horizontal area of pars intermedia can be reduced, thus reduce the interference of the induction electromotive force produced at pars intermedia perpendicular to the variation magnetic field in pars intermedia direction.
The present invention is further preferred jamproof manganese copper diverter again, and the longitudinal cross-section of its copper-manganese sampling sheet is U-shaped structure, has the advantage of easily processing, and copper-manganese sampling sheet only needs a punching press and plastic.
The present invention is preferred jamproof manganese copper diverter further, and between the front and back sides of its end, spacing equals 2 times of spacing between two lateral surfaces, and between two lateral surfaces, spacing equals 2 times of spacing between two medial surfaces.The copper-manganese sampling sheet that this ratio is made is under use Sheet Metal Forming Technology prerequisite, the most rational anti-jamming effectiveness that direction, three variation magnetic fields can reach.
Below in conjunction with drawings and Examples, the present invention is described in further detail.
Accompanying drawing explanation
Fig. 1 is one of structural drawing of the jamproof manganese copper diverter embodiment one of the present invention.
Fig. 2 is the structural drawing two of the jamproof manganese copper diverter embodiment one of the present invention.
Fig. 3 is the wiring layout of the jamproof manganese copper diverter embodiment one of the present invention.
Fig. 4 is the stretch-out view of the jamproof manganese copper diverter embodiment one of the present invention.
Fig. 5 is the structural drawing of the jamproof manganese copper diverter embodiment two of the present invention.
Embodiment
As shown in Figure 1 and Figure 2, jamproof manganese copper diverter embodiment one of the present invention, comprise conducting strip 2 and the copper-manganese sampling sheet 1 of both sides, the two ends of copper-manganese sampling sheet 1 are respectively equipped with the binding post 19 for connecting sample line, the two ends of copper-manganese sampling sheet 1 are connected with the conducting strip 2 of both sides respectively, and fix together by ultrasonic soldering by them, as shown in Figure 3, when the present embodiment being assembled to relay use, the conducting strip 2 of side is connected to the exit of relay.
As shown in Figure 1 and Figure 2, copper-manganese sampling sheet 1 in embodiment one has in space in perpendicular between two three reference fields a, b, c, three reference fields are the virtual planes be present in space, orientation when three reference fields in the present embodiment are to coordinate with relay is as the criterion, be respectively side reference field a, horizontal reference field b and vertical reference field c, three reference fields a, b, c have respectively three variation magnetic fields perpendicular to them.
As Fig. 1, shown in Fig. 2, the longitudinal cross-section of the copper-manganese sampling sheet 1 of embodiment one is U-shaped structure, be by will with original same volume, sectional area and resistance value, and be that the uniform copper-manganese sampling sheet punching press as shown in Figure 4 of thickness is formed, copper-manganese sampling sheet 1 after punching press has at the end 11 at two ends and the pars intermedia 12 between two ends 11, each end 11 all has medial surface 11a, lateral surface 11b, leading flank 11c, trailing flank 11d, medial surface 11a and the lateral surface 11b of each end 11 are parallel to each other, the medial surface 11a of two ends 11 is parallel to each other, the lateral surface 11b of two ends 11 is parallel to each other, the leading flank 11c of each end 11 and trailing flank 11d is parallel to each other and respectively perpendicular to interior lateral surface 11a, 11b, and pars intermedia 12 has two front/rear end 12a paralleled, 12b, front end face 12a and leading flank 11c is same plane, rear end face 12b and trailing flank 11d is same plane, the surface of the pars intermedia 12 of embodiment one can be considered the cambered surface composition of middle plane and both sides, both sides cambered surface is connected with the both ends 11 of copper-manganese sampling sheet 1 respectively, the front and back sides 11c of the present embodiment medial end portions 11, between 11d, spacing equals 2 times of spacing between two lateral surface 11b, between two lateral surface 11b, spacing equals 2 times of spacing between two medial surface 11a, in other words the length of the fore-and-aft direction of pars intermedia 12 is 2 times of its inward-outward direction width, and the width of the inward-outward direction of copper-manganese sampling sheet 1 is 2 times of its thickness.
As shown in Figure 1 and Figure 2, embodiment one is owing to being as previously described, longitudinal cross-section is the structure of U-shaped, copper-manganese sampling sheet 1 is in the symmetria bilateralis distribution centered by the reference field a of side, its both ends 11 are two parallel planar in the both sides of side reference field a, the projected area of copper-manganese sampling sheet 1 on the reference field a of this side is greater than the projected area of copper-manganese sampling sheet 1 on another two reference fields b, c, and the projected area of copper-manganese sampling sheet 1 on horizontal reference field b, is namely equivalent to the projected area of pars intermedia 12 on horizontal reference field b and is greater than the projected area on vertical reference field c.Therefore be assembling use as shown in Figure 3 during use the present embodiment, because the interference perpendicular to the variation magnetic field of side reference field a is the strongest, and it is relatively weak perpendicular to the variation magnetic field interference on horizontal reference field b and vertical reference field c, so cancel out each other because creating induction electromotive force in the both ends 11 of copper-manganese sampling sheet 1, thus make the Interference Cancellation from side direction, and it is less owing to being interfered on horizontal reference field b and vertical reference field c, therefore just the impact suffered by entirety can be reduced, play jamproof effect.
As shown in Figure 5, for jamproof manganese copper diverter embodiment two of the present invention, itself and the difference of embodiment one are only that conducting strip 2 shape of its both sides is identical, and be in the symmetria bilateralis distribution centered by the reference field a of side, except easy to process, can also coordinate with corresponding relay and be useful among some intelligent electric meter.
Protection scope of the present invention is not limited to above-described embodiment; allow copper-manganese sampling sheet 1 can have considerable change; but meet the following conditions: copper-manganese sampling sheet 1 has in space in three perpendicular between two reference fields; copper-manganese sampling sheet 1 two ends are in the symmetria bilateralis distribution centered by one of them reference field, and the projected area of copper-manganese sampling sheet on this center reference face is greater than the projected area of copper-manganese sampling sheet on another two reference fields.As long as because determine to disturb the strongest direction, variation magnetic field; reference field vertical with it can be determined; again copper-manganese sampling sheet 1 is set to two ends distribute in this reference field symmetria bilateralis; and the projected area met on this center reference face is precondition maximum in three reference fields; can realize offsetting the object from the interference in the strongest direction, variation magnetic field, therefore protection scope of the present invention defined by claim.
Claims (6)
1. a jamproof manganese copper diverter, comprise conducting strip (2) and the copper-manganese sampling sheet (1) of both sides, the two ends of copper-manganese sampling sheet (1) are respectively equipped with the binding post (19) for connecting sample line, the two ends of copper-manganese sampling sheet (1) are connected with the conducting strip (2) of both sides respectively, it is characterized in that: copper-manganese sampling sheet (1) has in space in three perpendicular between two reference fields, described three reference fields are side reference field (a) respectively, horizontal reference field (b) and vertical reference field (c), copper-manganese sampling sheet (1) two ends are in the symmetria bilateralis distribution centered by side reference field (a), copper-manganese sampling sheet (1) projected area on side reference field (a) is greater than copper-manganese sampling sheet (1) projected area on horizontal reference field (b), copper-manganese sampling sheet (1) projected area on horizontal reference field (b) is greater than the projected area on vertical reference field (c).
2. jamproof manganese copper diverter according to claim 1, is characterized in that: the conducting strip (2) of both sides is in the symmetria bilateralis distribution centered by side reference field (a).
3. jamproof manganese copper diverter according to claim 1 and 2, it is characterized in that: copper-manganese sampling sheet (1) has the end (11) being positioned at two ends, each end (11) all has medial surface (11a), lateral surface (11b), leading flank (11c), trailing flank (11d), medial surface (11a) and the lateral surface (11b) of each end (11) are parallel to each other, the medial surface (11a) of two ends (11) is parallel to each other, the lateral surface (11b) of two ends (11) is parallel to each other, the leading flank (11c) of each end (11) and trailing flank (11d) are parallel to each other and respectively perpendicular to interior lateral surface (11a) (11b).
4. jamproof manganese copper diverter according to claim 3, it is characterized in that: copper-manganese sampling sheet (1) has the pars intermedia (12) be positioned between two ends (11), this pars intermedia (12) has two front/rear ends paralleled (12a) (12b), front end face (12a) and leading flank (11c) are in same plane, and rear end face (12b) and trailing flank (11d) are in same plane.
5. jamproof manganese copper diverter according to claim 4, is characterized in that: the longitudinal cross-section of copper-manganese sampling sheet (1) is U-shaped structure.
6. jamproof manganese copper diverter according to claim 5, it is characterized in that: between front and back sides (11c) (11d) of end (11), spacing equals 2 times of spacing between two lateral surfaces (11b), between two lateral surfaces (11b), spacing equals 2 times of spacing between two medial surfaces (11a).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310008123.5A CN103076475B (en) | 2013-01-10 | 2013-01-10 | Anti-interference manganese-copper current divider |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310008123.5A CN103076475B (en) | 2013-01-10 | 2013-01-10 | Anti-interference manganese-copper current divider |
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| CN103076475A CN103076475A (en) | 2013-05-01 |
| CN103076475B true CN103076475B (en) | 2015-01-07 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111693769A (en) * | 2019-03-15 | 2020-09-22 | 宁波三星智能电气有限公司 | Electric energy meter |
| CN110967545A (en) * | 2019-12-17 | 2020-04-07 | 威胜集团有限公司 | Metering module for electric appliance and electric appliance |
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Denomination of invention: Anti interference manganin shunt Effective date of registration: 20211111 Granted publication date: 20150107 Pledgee: Zhejiang Yueqing Rural Commercial Bank Co.,Ltd. Hongnan sub branch Pledgor: ZHEJIANG LIHUI ELECTRIC Co.,Ltd. Registration number: Y2021330002212 |
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Date of cancellation: 20220507 Granted publication date: 20150107 Pledgee: Zhejiang Yueqing Rural Commercial Bank Co.,Ltd. Hongnan sub branch Pledgor: ZHEJIANG LIHUI ELECTRIC Co.,Ltd. Registration number: Y2021330002212 |
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Denomination of invention: Anti interference manganin shunt Effective date of registration: 20220507 Granted publication date: 20150107 Pledgee: Zhejiang Yueqing Rural Commercial Bank Co.,Ltd. Hongnan sub branch Pledgor: ZHEJIANG LIHUI ELECTRIC Co.,Ltd. Registration number: Y2022330000657 |
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