CN103558428B - A kind of three-phase intelligent watt-hour meter control device - Google Patents
A kind of three-phase intelligent watt-hour meter control device Download PDFInfo
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- CN103558428B CN103558428B CN201310575162.3A CN201310575162A CN103558428B CN 103558428 B CN103558428 B CN 103558428B CN 201310575162 A CN201310575162 A CN 201310575162A CN 103558428 B CN103558428 B CN 103558428B
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Abstract
The invention discloses a kind of three-phase intelligent watt-hour meter control device, comprise Three-phase magnetic latching relay, it is characterized in that: described Three-phase magnetic latching relay connects driving circuit, described driving circuit connects single-chip microcomputer, described single-chip microcomputer is connected power transfer module respectively with driving circuit, and described power transfer module connects transient state power taking energy storage equipment.The present invention improves further and long-rangely stops power transmission reliability, development three-phase electric energy meter special switch, adopt high-power two-position magnetic latching relay, the pulse power source module of design specialized, the secondary coil of switch magnetic latching relay under normal power-up and power down mode is all not charged, only when stopping power transmission, coil is charged carries out position switching, thus extends serviceable life, improves reliability.Reduced by technological means and give tariff recovery because the damage of electric energy meter external switch and press for payment of the difficulty brought, reduce the possibility causing appeal of service.Reduce because of trip coil long time the unnecessary waste of the charged electricity caused and loss.
Description
Technical field
The present invention relates to three-phase intelligent watt-hour meter field, specifically, relate to a kind of three-phase intelligent watt-hour meter control device.
Background technology
Along with microelectric technique, the particularly fast development of electron device, requires that the power consumption of the relay coordinated with it should be as far as possible little.In particular for the relay of some special industry device, not only require that its volume is little, quality light, reliable operation, the more important thing is and require that its energy ezpenditure is little.In recent years, magnetic material application technology exploitation paces progressively accelerate, magnetic device also at the future development towards miniaturization, under this overall situation, as a kind of miniature relay--magnetic latching relay have also been obtained sufficient development.Magnetic latching relay can carry out action under the effect of pulse, and remains on certain position for a long time when non-transformer consumption, namely remains on the state of last pulse command.Owing to having the function of bistable state and memory, and the feature that energy consumption is low.
Along with promoting the use of of intelligent kilowatt-hour meter constantly advances with power information collection construction project, reliability requirement user being stopped to power-cutting switch is more and more higher, present use three-phase intelligent watt-hour meter is without built-in switch, all use external switch to realize stopping power transmission to control, the switch model used has positive safe DZ158S-100, the YCB1-100 Mini-size circuit breaker with plastic shell of NB7S-100 and Great Wall electrical equipment, this kind of isolating switch is seen according to service condition, because electrical apparatus release is long charged, spoilage is higher, situation that is long-range and that stop power transmission on the spot can not be realized happen occasionally because electrical apparatus release damages to cause, thus cause electric energy meter to cross zero run, subscriber arrearage, very large difficulty is brought with pressing for payment of to tariff recovery, separately because of trip coil long time charged, also cause the unnecessary waste of electricity.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of three-phase intelligent watt-hour meter control device, extends the life-span of three-phase intelligent watt-hour meter, improves reliability.
The present invention adopts following technical scheme to realize goal of the invention:
A kind of three-phase intelligent watt-hour meter control device, comprise Three-phase magnetic latching relay, it is characterized in that: described Three-phase magnetic latching relay connects driving circuit, described driving circuit connects single-chip microcomputer, described single-chip microcomputer is connected power transfer module respectively with driving circuit, and described power transfer module connects transient state power taking energy storage equipment.
As the further restriction to the technical program, described transient state power taking energy storage equipment comprises rectification circuit, described rectification circuit is also connected to series connection energy storage capacitor C1 and energy storage capacitor C2, described rectification circuit two ends also and be connected to DC voltage end, voltage output end one A is connected with between described electric capacity C1 and C2, described DC voltage end connects the common port COM of selector switch, and the other end of the common port COM of described selector switch is voltage output end two B.
As the further restriction to the technical program, voltage output end one A of described transient state power taking energy storage equipment is connected described power transfer module with voltage output end two B.
As the further restriction to the technical program, two voltage output pins of described power transfer module output pin and a direction signal output pin, the output voltage of two described voltage output pins is respectively 5V and 12V.
As the further restriction to the technical program, described driving circuit comprises driver element one MOS_A, driver element two MOS_B, driver element three MOS_C and driver element four MOS_D, and described driver element one MOS_A, driver element two MOS_B, driver element three MOS_C are connected described Three-phase magnetic latching relay respectively with driver element four MOS_D.
Compared with prior art, advantage of the present invention and good effect are: the present invention improves further and long-rangely stops power transmission reliability, development three-phase electric energy meter special switch, adopt high-power two-position magnetic latching relay, the pulse power source module of design specialized, the secondary coil of switch magnetic latching relay under normal power-up and power down mode is all not charged, and only when stopping power transmission, coil is charged carries out position switching, thus extend serviceable life, improve reliability.Reduced by technological means and give tariff recovery because the damage of electric energy meter external switch and press for payment of the difficulty brought, reduce the possibility causing appeal of service.Reduce because of trip coil long time the unnecessary waste of the charged electricity caused and loss.
Accompanying drawing explanation
Fig. 1 is functional-block diagram of the present invention.
Fig. 2 is the circuit theory diagrams of transient state power taking energy storage equipment of the present invention.
Fig. 3 is the circuit theory diagrams of driving circuit of the present invention.
Embodiment
Below in conjunction with accompanying drawing and preferred embodiment, the present invention is further described in detail.
See Fig. 1, the present invention includes Three-phase magnetic latching relay, described Three-phase magnetic latching relay connects driving circuit, and described driving circuit connects single-chip microcomputer, described single-chip microcomputer is connected power transfer module respectively with driving circuit, and described power transfer module connects transient state power taking energy storage equipment.The electric energy obtained from transient state power taking energy storage equipment exports as 5V voltage, 12V voltage and direction signal by power transfer module, wherein 5V voltage is used for powering to single-chip microcomputer, 12V voltage is used for powering to driving circuit and Three-phase magnetic latching relay, switching direction signal is provided according to the power supply that powers on, power transfer module adopts prior art to make, and does not repeat them here.
Described transient state power taking energy storage equipment comprises rectification circuit, described rectification circuit is also connected to series connection energy storage capacitor C1 and energy storage capacitor C2, described rectification circuit two ends also and be connected to DC voltage end, voltage output end one A is connected with between described energy storage capacitor C1 and C2, described DC voltage end connects the common port COM of selector switch, and the other end of the common port COM of described selector switch is voltage output end two B.
Voltage output end one A of described transient state power taking energy storage equipment is connected described power transfer module with voltage output end two B.
Two voltage output pins of described power transfer module output pin and a direction signal output pin, the output voltage of two described voltage output pins is respectively 5V and 12V.
Described driving circuit comprises driver element one MOS_A, driver element two MOS_B, driver element three MOS_C and driver element four MOS_D, and described driver element one MOS_A, driver element two MOS_B, driver element three MOS_C are connected described Three-phase magnetic latching relay respectively with driver element four MOS_D.
Produce DC voltage see Fig. 2, AC220V through rectified current road and bridge, C end is normally closed point, and D end is made war for normal, when common port COM and C of selector switch holds conducting, then and A-(negative pole), B+(positive pole) and, when common port COM and D of selector switch holds conducting.Then A+(positive pole), B-(negative pole), the AB duration of charging is determined by electric capacity C1, C2, and after COM, A, B connect, electric capacity is full of electricity is not having electric current to pass through.
See Fig. 3, driving circuit, under the driving of drive singal, makes the relay coil of Three-phase magnetic latching relay by Bipolar pulse current, thus changes the on off operating mode of relay.Driver element one MOS_A and driver element four MOS_D general rule E+(positive pole), F-(negative pole), open Three-phase magnetic latching relay; Driver element three MOS_C and driver element two MOS_B leads to, then F+(positive pole), E-(negative pole). close Three-phase magnetic latching relay, driver element one MOS_A and driver element four MOS_D, driver element three MOS_C and logical control of driver element two MOS_B admittance are completed by single-chip microcomputer.
Certainly, above-mentioned explanation is not limitation of the present invention, and the present invention is also not limited only to above-mentioned citing, and the change that those skilled in the art make in essential scope of the present invention, remodeling, interpolation or replacement, also belong to protection scope of the present invention.
Claims (1)
1. a three-phase intelligent watt-hour meter control device, comprise Three-phase magnetic latching relay, it is characterized in that: described Three-phase magnetic latching relay connects driving circuit, described driving circuit connects single-chip microcomputer, described single-chip microcomputer is connected power transfer module respectively with driving circuit, described power transfer module connects transient state power taking energy storage equipment, described transient state power taking energy storage equipment comprises rectification circuit, described rectification circuit is also connected to series connection energy storage capacitor C1 and energy storage capacitor C2, described rectification circuit two ends also and be connected to DC voltage end, voltage output end one A is connected with between described electric capacity C1 and C2, described DC voltage end connects the common port COM of selector switch, the other end of the common port COM of described selector switch is voltage output end one B, voltage output end one A of described transient state power taking energy storage equipment is connected described power transfer module with voltage output end two B, two voltage output pins of described power transfer module output pin and a direction signal output pin, the output voltage of two described voltage output pins is respectively 5V and 12V, described driving circuit comprises driver element one MOS_A, driver element two MOS_B, driver element three MOS_C and driver element four MOS_D, described driver element one MOS_A, driver element two MOS_B, driver element three MOS_C is connected described Three-phase magnetic latching relay respectively with driver element four MOS_D,
AC220V produces DC voltage through rectified current road and bridge, and C end is normally closed point, and D end is made war for normal, and when common port COM and C of selector switch holds conducting, then A-, B+, when common port COM and D of selector switch holds conducting;
Then A+, B-, the AB duration of charging is determined by electric capacity C1, C2, and after COM, A, B connect, electric capacity is full of electricity is not having electric current to pass through; Driving circuit, under the driving of drive singal, makes the relay coil of Three-phase magnetic latching relay by Bipolar pulse current, thus changes the on off operating mode of relay;
Driver element one MOS_A and driver element four MOS_D general rule E+, F-, opens Three-phase magnetic latching relay; Driver element three MOS_C and driver element two MOS_B leads to, then F+, E-. close Three-phase magnetic latching relay, and driver element one MOS_A and driver element four MOS_D, driver element three MOS_C and logical control of driver element two MOS_B admittance are completed by single-chip microcomputer.
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| CN201310575162.3A CN103558428B (en) | 2013-11-18 | 2013-11-18 | A kind of three-phase intelligent watt-hour meter control device |
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| CN201310575162.3A CN103558428B (en) | 2013-11-18 | 2013-11-18 | A kind of three-phase intelligent watt-hour meter control device |
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| CN103558428B true CN103558428B (en) | 2016-03-23 |
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| CN106253211A (en) * | 2016-08-18 | 2016-12-21 | 北京索英电气技术有限公司 | A kind of magnetic latching relay automatically controls method and the device thereof that contact disconnects |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201788214U (en) * | 2010-09-13 | 2011-04-06 | 武汉盛帆电子股份有限公司 | Intelligent single-phase cost control electricity meter with low power consumption |
| CN202916339U (en) * | 2012-09-29 | 2013-05-01 | 宁波三星电气股份有限公司 | Prepayment electric energy meter |
| CN203572852U (en) * | 2013-11-18 | 2014-04-30 | 国家电网公司 | Three-phase intelligent electric meter control device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP3603876B2 (en) * | 2002-04-25 | 2004-12-22 | 松下電器産業株式会社 | Weighing device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201788214U (en) * | 2010-09-13 | 2011-04-06 | 武汉盛帆电子股份有限公司 | Intelligent single-phase cost control electricity meter with low power consumption |
| CN202916339U (en) * | 2012-09-29 | 2013-05-01 | 宁波三星电气股份有限公司 | Prepayment electric energy meter |
| CN203572852U (en) * | 2013-11-18 | 2014-04-30 | 国家电网公司 | Three-phase intelligent electric meter control device |
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