CN214473551U - Intelligent electric energy meter provided with hard connecting ring and resistant to power frequency magnetic field and arranged on circuit board - Google Patents
Intelligent electric energy meter provided with hard connecting ring and resistant to power frequency magnetic field and arranged on circuit board Download PDFInfo
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- CN214473551U CN214473551U CN202022813199.3U CN202022813199U CN214473551U CN 214473551 U CN214473551 U CN 214473551U CN 202022813199 U CN202022813199 U CN 202022813199U CN 214473551 U CN214473551 U CN 214473551U
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Abstract
The utility model discloses an intelligent electric energy meter of anti-power frequency magnetic field of setting up hard go-between on the circuit board, including setting up the first Top electric conductor of current sampling at electric energy meter circuit board Top surface, setting up the anti-power frequency magnetic field ring, current sampling second Bottom electric conductor and current sampling third Bottom electric conductor in electric energy meter circuit board Bottom surface, two tip of anti-power frequency magnetic field ring are regarded as first current compensation end and first current compensation end respectively; the current sampling first Top conductor is connected with a current sampling second Bottom conductor, the current sampling second Bottom conductor is connected with a second current compensation end, and the first current compensation end is connected with a current sampling third Bottom conductor; the current sampling second Bottom conductor is connected to a metering chip of the electric energy meter; the current sampling third Bottom conductor is connected to a metering chip of the electric energy meter; the current sampling first Top conductor and the current sampling third Bottom conductor form a space intersection between the Top surface and the Bottom surface of the electric energy meter circuit board. The utility model discloses avoided the manual regulation to the shunt wiring.
Description
Technical Field
The utility model relates to an electric energy meter technical field, concretely relates to set up intelligent electric energy meter in anti power frequency magnetic field of hard go-between on the circuit board.
Background
The intelligent electric energy meter is an instrument for measuring electric energy, and a magnetic latching relay with a shunt is arranged in the intelligent electric energy meter. The shunt usually adopts a manganin shunt chip as a sampling resistance chip. The electric energy meter samples through the sampling resistance card to obtain electric energy information.
Because the electric energy meter is easily interfered by a power frequency magnetic field to influence the precision of signal acquisition, in order to solve the interference of the magnetic field, one scheme of the prior art is to arrange a through hole in the middle of the manganin splitter plate, weld two signal sampling lines on the upper and lower sampling pins of the manganin splitter plate respectively, and let one of the signal sampling lines pass through the through hole in the middle of the manganin splitter plate and then be connected to the circuit board of the electronic electric energy meter together with the other signal sampling line, thereby realizing better anti-magnetic field interference effect. However, the electronic electric energy meter capable of resisting interference has the following two disadvantages: firstly, due to the structural characteristic of the signal sampling line, automatic assembly cannot be adopted; secondly, because the signal sampling line is too soft, the position of the signal sampling line after being welded with the manganin splitter plate and the shape of the signal sampling line after being welded are different, and the product needs to be finely adjusted again when the product reaches the client-side meter installation test so as to meet the requirement of the client standard.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem, the utility model provides a set up the intelligent ammeter in anti power frequency magnetic field of hard go-between on the circuit board aims at avoiding carrying out artificial regulation to the wiring of shunt in the production process, improves the anti power frequency magnetic field ability of shunt. The specific technical scheme is as follows:
an intelligent power frequency magnetic field resistant electric energy meter with a hard connecting ring arranged on a circuit board comprises an electric energy meter circuit board, a relay connected on the electric energy meter circuit board, and a shunt arranged on the relay, wherein the shunt comprises a sampling resistance sheet, a first current sampling end and a second current sampling end are respectively arranged on the sampling resistance sheet, a power frequency magnetic field resistant ring is further arranged on the Bottom surface of the electric energy meter circuit board, the power frequency magnetic field resistant ring is an open ring, two end parts of the open ring are respectively fixed on the electric energy meter circuit board as a first current compensation end and a second current compensation end, a first current sampling Top conductor is arranged on the Top surface of the electric energy meter circuit board, a second current sampling Bottom conductor and a third current sampling Bottom conductor are respectively arranged on the Bottom surface of the electric energy meter circuit board, the first current sampling end is connected with a metering chip of the electric energy meter through the electric energy meter circuit board, the second current sampling end is connected with one end of the current sampling first Top conductor through the electric energy meter circuit board, the other end of the first Top conductor is connected with one end of the current sampling second Bottom conductor through the electric energy meter circuit board, the other end of the current sampling second Bottom conductor is connected with the second current compensation end of the power frequency magnetic field resisting ring through the electric energy meter circuit board, the first current compensation end of the power frequency magnetic field resisting ring is connected with one end of the current sampling third Bottom conductor through the electric energy meter circuit board, and the other end of the current sampling third Bottom conductor is connected with a metering chip of the electric energy meter at the Bottom surface of the electric energy meter circuit board; the current sampling first Top conductor and the current sampling third Bottom conductor form a space intersection between the Top surface and the Bottom surface of the electric energy meter circuit board, so that induced electromotive force formed by the shunt and induced voltage formed by the anti-power frequency magnetic field ring are mutually offset under the action of a power frequency magnetic field.
The utility model discloses in, anti power frequency magnetic field ring is for erectting to be connected on the electric energy meter circuit board and with the anti power frequency magnetic field ring of electric energy meter circuit board hard joint.
The utility model discloses in, still be provided with the voltage sampling end on the shunt.
Preferably, the power frequency magnetic field resistant ring is substantially parallel to the sampling resistor disc.
The utility model discloses in, the sampling resistance card that the sampling resistance card was made for adopting the high resistant material.
Preferably, the current sampling first Top conductor, the current sampling second Bottom conductor and the current sampling third Bottom conductor are printed on the circuit board of the electric energy meter.
The utility model discloses in, the relay install in the bottom surface of electric energy meter circuit board.
The utility model discloses in, still be provided with relay control signal end on the relay, relay control signal end includes relay control signal positive terminal (+) and relay control signal negative terminal (-).
The utility model discloses in, still be provided with electric energy meter external power incoming end on the relay, electric energy meter external power incoming end includes power input end and power output end.
The utility model discloses in, still be provided with relay state feedback end on the relay.
A power frequency magnetic field resistant intelligent electric energy meter diamagnetic method with a hard connecting ring arranged on a circuit board comprises the steps of fixing a power frequency magnetic field resistant ring on the electric energy meter circuit board, arranging a current sampling first Top conductor on the Top surface of the electric energy meter circuit board, arranging a current sampling second Bottom conductor and a current sampling third Bottom conductor on the Bottom surface of the electric energy meter circuit board respectively, enabling the current sampling first Top conductor and the current sampling third Bottom conductor to be crossed in space, connecting a first current sampling end on a sampling resistance sheet of a relay current divider with a metering chip on the electric energy meter circuit board, sequentially connecting a second current sampling end on a sampling resistance sheet of the relay current divider with the current sampling first Top conductor, the current sampling second Bottom conductor and one end of the power frequency magnetic field resistant ring through the electric energy meter circuit board, the other end of the power frequency magnetic field resisting ring is sequentially connected to a current sampling third Bottom conductor and a metering chip through an electric energy meter circuit board; and the current sampling first Top conductor and the current sampling third Bottom conductor are crossed in the space between the Top surface and the Bottom surface of the electric energy meter circuit board, so that the induced electromotive force formed by the shunt and the induced voltage formed by the power frequency resisting magnetic field ring are mutually offset under the action of a power frequency magnetic field.
The utility model has the advantages that:
first, the utility model discloses a set up the intelligent ammeter in anti power frequency magnetic field of hard go-between on the circuit board, the shunt offsets each other with the induced voltage that anti power frequency magnetic field ring formed under the influence of power frequency magnetic field, need not carry out artificial regulation to the wiring of shunt in process of production.
Second, the utility model discloses an intelligent ammeter that sets up the anti power frequency magnetic field of hard go-between on the circuit board adopts the full hard connection between shunt and the electric energy meter circuit board, is convenient for realize industrial automation, improves production efficiency, reduce cost.
Drawings
Fig. 1 is a schematic structural diagram of an intelligent electric energy meter with a hard connecting ring on a circuit board for resisting a power frequency magnetic field according to the present invention;
FIG. 2 is a schematic structural diagram of the electric energy meter in FIG. 1 with a circuit board removed;
FIG. 3 is a partially enlarged view of the connection between the power frequency resistant magnetic field ring and the circuit board of the electric energy meter in FIG. 1;
FIG. 4 is a schematic view of a portion of the circuit board of the electric energy meter shown in FIG. 3 after being turned over;
FIG. 5 is a partial schematic view of the anti-power frequency magnetic field loop of FIG. 4 with the loop removed.
In the figure: 100. the current divider comprises a current divider, 101, a voltage sampling end, 102, a first current sampling end, 103, a second current sampling end, 200, a power frequency resisting magnetic field ring, 201, a first current compensation end, 202, a second current compensation end, 300, a relay state feedback end, 400, an external power supply access end of the electric energy meter, 401, a power supply input end, 402, a power supply output end, 500, a relay control signal end, 501, a relay control signal positive end (+), 502, a relay control signal negative end (-), 600, a relay, 700, an electric energy meter circuit board, 701, a current sampling first Top conductor, 702, a current sampling second Bottom conductor, 703 and a current sampling third Bottom conductor.
Detailed Description
The following description will further describe embodiments of the present invention with reference to the accompanying drawings and examples. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
Example 1:
fig. 1 to 5 show an embodiment of the utility model, which is an intelligent electric energy meter with power frequency magnetic field resistance and a hard connection ring arranged on a circuit board, and includes an electric energy meter circuit board 700, a relay 600 connected to the electric energy meter circuit board 700, and a shunt 100 arranged on the relay 600, wherein the shunt 100 includes a sampling resistor sheet, the sampling resistor sheet is provided with a first current sampling end 102 and a second current sampling end 103, respectively, the Bottom surface of the electric energy meter circuit board 700 is further provided with a power frequency magnetic field resistance ring 200, the power frequency magnetic field resistance ring 200 is a split ring, two ends of the split ring are respectively fixed on the electric energy meter circuit board 700 as a first current compensation end 201 and a first current compensation end 202, the Top surface of the electric energy meter circuit board 700 is provided with a first Top conductor 701 for current sampling, the Bottom surface of the electric energy meter circuit board 700 is respectively provided with a second Bottom conductor 702 for current sampling and a third Bottom conductor 703 for current sampling, the first current sampling end 102 is connected with a metering chip of the electric energy meter through the electric energy meter circuit board, the second current sampling end 103 is connected with one end of the first current sampling Top conductor 701 through the electric energy meter circuit board, the other end of the first Top conductor 701 is connected with one end of the second current sampling Bottom conductor 702 through the electric energy meter circuit board, the other end of the second current sampling Bottom conductor 702 is connected with the second current compensation end 202 of the power frequency resisting magnetic field ring through the electric energy meter circuit board, the first current compensation end 201 of the power frequency resisting magnetic field ring is connected with one end of the third current sampling Bottom conductor 703 through the electric energy meter circuit board, and the other end of the third current sampling Bottom conductor circuit board is connected with the metering chip of the electric energy meter 703 at the Bottom surface of the electric energy meter; the current sampling first Top conductor 701 and the current sampling third Bottom conductor 703 form a spatial intersection between the Top surface and the Bottom surface of the electric energy meter circuit board 700, so that the induced electromotive force formed by the shunt 100 and the induced voltage formed by the anti-power frequency magnetic field loop 200 cancel each other under the action of the power frequency magnetic field.
In this embodiment, the power frequency magnetic field resistant ring 200 is a power frequency magnetic field resistant ring vertically connected to the electric energy meter circuit board 700 and hard-connected to the electric energy meter circuit board 700.
In this embodiment, the shunt 100 is further provided with a voltage sampling terminal 101.
Preferably, the power frequency magnetic field resisting ring 200 is substantially parallel to the sampling resistor disc.
In this embodiment, the sampling resistor disc is made of a high-resistance material.
Preferably, the current sampling first Top conductor 701, the current sampling second Bottom conductor 702 and the current sampling third Bottom conductor 703 are printed on the power meter circuit board 700.
In this embodiment, the relay 600 is mounted on the bottom surface of the electric energy meter circuit board 700.
In this embodiment, the relay 600 is further provided with a relay control signal terminal 500, and the relay control signal terminal 500 includes a relay control signal positive terminal (+)501 and a relay control signal negative terminal (-) 502.
In this embodiment, the relay 600 is further provided with an external power supply access end 400 of the electric energy meter, and the external power supply access end 400 of the electric energy meter includes a power supply input end 401 and a power supply output end 402.
In this embodiment, the relay 600 is further provided with a relay state feedback terminal 300.
Example 2:
as shown in fig. 1 to 5, a method for diamagnetizing an intelligent electric energy meter with a hard connection ring on a circuit board for resisting a power frequency magnetic field is provided, in which a ring 200 for resisting a power frequency magnetic field is fixed on the circuit board of the electric energy meter, a first Top conductor 701 for current sampling is provided on a Top surface of the circuit board 700 of the electric energy meter, a second Bottom conductor 702 for current sampling and a third Bottom conductor 703 for current sampling are provided on a Bottom surface of the circuit board 700 of the electric energy meter, the first Top conductor 701 for current sampling and the third Bottom conductor 703 for current sampling are spatially crossed with each other, a first current sampling terminal 102 on a sampling resistor of a shunt 100 of a relay 600 is connected to a metering chip on the circuit board 700 of the electric energy meter, and a second current sampling terminal 103 on the sampling resistor of the shunt 100 of the relay is sequentially connected to the first Top conductor 701 for current sampling, the third Bottom conductor 703 for current sampling, and the third Bottom conductor 703 for current sampling through the circuit board 700 of the electric energy meter, A current sampling second Bottom conductor 702 and one end of the power frequency magnetic field resisting ring 200, and then the other end of the power frequency magnetic field resisting ring 200 is sequentially connected to a current sampling third Bottom conductor 703 and a metering chip through an electric energy meter circuit board 700; the first Top conductor 701 for current sampling and the third Bottom conductor 703 for current sampling are crossed in the space between the Top surface and the Bottom surface of the electric energy meter circuit board 700, so that the induced electromotive force formed by the shunt 100 and the induced voltage formed by the anti-power frequency magnetic field loop 200 are mutually offset under the action of the power frequency magnetic field.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the technical principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.
Claims (8)
1. An intelligent power frequency magnetic field resistant electric energy meter with a hard connecting ring arranged on a circuit board is characterized by comprising an electric energy meter circuit board, a relay connected to the electric energy meter circuit board and a shunt arranged on the relay, wherein the shunt comprises a sampling resistance sheet, a first current sampling end and a second current sampling end are respectively arranged on the sampling resistance sheet, a power frequency magnetic field resistant ring is further arranged on the Bottom surface of the electric energy meter circuit board, the power frequency magnetic field resistant ring is a split ring, two end parts of the split ring are respectively used as a first current compensation end and a second current compensation end to be fixed on the electric energy meter circuit board, a first Top current sampling electric conductor is arranged on the Top surface of the electric energy meter circuit board, a second Bottom current sampling electric conductor and a third Bottom current sampling electric conductor are respectively arranged on the Bottom surface of the electric energy meter circuit board, the first current sampling end is connected with a metering chip of the electric energy meter through the electric energy meter circuit board, the second current sampling end is connected with one end of the current sampling first Top conductor through the electric energy meter circuit board, the other end of the first Top conductor is connected with one end of the current sampling second Bottom conductor through the electric energy meter circuit board, the other end of the current sampling second Bottom conductor is connected with the second current compensation end of the power frequency resisting magnetic field ring through the electric energy meter circuit board, the first current compensation end of the power frequency resisting magnetic field ring is connected with one end of the current sampling third Bottom conductor through the electric energy meter circuit board, and the other end of the current sampling third Bottom conductor is connected with the metering chip of the electric energy meter at the Bottom surface of the electric energy meter circuit board; the current sampling first Top conductor and the current sampling third Bottom conductor form a space intersection between the Top surface and the Bottom surface of the electric energy meter circuit board, so that induced electromotive force formed by the shunt and induced voltage formed by the anti-power frequency magnetic field ring are mutually offset under the action of a power frequency magnetic field; the sampling resistor disc is made of a high-resistance material; the power frequency magnetic field resisting ring is a power frequency magnetic field resisting ring which is vertically connected to the electric energy meter circuit board and is in hard connection with the electric energy meter circuit board.
2. The intelligent power meter capable of resisting the power frequency magnetic field, provided with the hard connecting ring on the circuit board according to claim 1, wherein the current divider is further provided with a voltage sampling end.
3. The intelligent power meter with the power frequency magnetic field resistance function provided with the hard connecting ring on the circuit board according to claim 1, wherein the power frequency magnetic field resistance ring is substantially parallel to the sampling resistor disc.
4. The intelligent power meter of claim 1, wherein the first Top current-sampling conductor, the second Bottom current-sampling conductor and the third Bottom current-sampling conductor are printed on the circuit board of the power meter.
5. The intelligent power meter with the power frequency magnetic field resistance function and the hard connecting ring arranged on the circuit board as claimed in claim 1, wherein the relay is mounted on the bottom surface of the circuit board of the power meter.
6. The intelligent power meter with hard connecting ring on circuit board for resisting industrial frequency magnetic field as claimed in claim 1, wherein said relay is further provided with relay control signal terminals, said relay control signal terminals include a relay control signal positive terminal (+) and a relay control signal negative terminal (-).
7. The intelligent power meter capable of resisting the power frequency magnetic field, provided with the hard connecting ring on the circuit board according to claim 1, wherein the relay is further provided with an external power supply access end of the power meter, and the external power supply access end of the power meter comprises a power supply input end and a power supply output end.
8. The intelligent electric energy meter with the power frequency magnetic field resistance function and the hard connecting ring arranged on the circuit board as claimed in claim 1, wherein the relay is further provided with a relay state feedback end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022813199.3U CN214473551U (en) | 2020-11-30 | 2020-11-30 | Intelligent electric energy meter provided with hard connecting ring and resistant to power frequency magnetic field and arranged on circuit board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022813199.3U CN214473551U (en) | 2020-11-30 | 2020-11-30 | Intelligent electric energy meter provided with hard connecting ring and resistant to power frequency magnetic field and arranged on circuit board |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214473551U true CN214473551U (en) | 2021-10-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022813199.3U Active CN214473551U (en) | 2020-11-30 | 2020-11-30 | Intelligent electric energy meter provided with hard connecting ring and resistant to power frequency magnetic field and arranged on circuit board |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214473551U (en) |
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2020
- 2020-11-30 CN CN202022813199.3U patent/CN214473551U/en active Active
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