CN201788214U - Intelligent single-phase cost control electricity meter with low power consumption - Google Patents
Intelligent single-phase cost control electricity meter with low power consumption Download PDFInfo
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- CN201788214U CN201788214U CN2010205265383U CN201020526538U CN201788214U CN 201788214 U CN201788214 U CN 201788214U CN 2010205265383 U CN2010205265383 U CN 2010205265383U CN 201020526538 U CN201020526538 U CN 201020526538U CN 201788214 U CN201788214 U CN 201788214U
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Abstract
The utility model relates to a single-phase electricity meter, in particular to an intelligent single-phase cost control electricity meter with low power consumption, which comprises a power unit, an electricity metering unit, a single-chip microcomputer central processing unit, a relay control unit and an electricity meter data input and output unit connected with the single-chip microcomputer central processing unit. An output end of the power unit is connected with the electricity metering unit, the single chip microcomputer central processing unit and the relay control unit respectively. The intelligent single-phase cost control electricity meter with low power consumption adopts low-dropout-voltage low-power-consumption linear voltage stabilizing tubes, reduces system voltage, further adopts a low-drive voltage relay, and greatly reduces power consumption (less than 0.35W).
Description
Technical field
The utility model relates to a kind of single-phase electric energy meter, particularly a kind of intelligent electric energy meter that uses the low-power consumption band expense control function of transformer.
Technical background
In the electric energy meter electric source scheme of using mostly at present, transformer scheme accounts for dominant position, and it is stable, and isolation effect is good, but power consumption is generally bigger, so incompatibility modern social development is to the electric energy meter energy conservation and environment protection.
Summary of the invention
The purpose of this utility model provides the single-phase expense control of a kind of low-power consumption intelligent electric energy meter at above-mentioned technical matters exactly, and it can guarantee effectively to reduce the oneself power consumption of electric energy meter under the original performance condition of electric energy meter.
The purpose of this utility model is achieved by the following technical solution: the single-phase expense control of low-power consumption intelligent electric energy meter, comprise power supply unit, electric energy metrical unit, single-chip microcomputer CPU (central processing unit), relay control unit and the ammeter data input-output unit that links to each other with the single-chip microcomputer CPU (central processing unit), its power supply unit output terminal connects electric energy metrical unit, single-chip microcomputer CPU (central processing unit) and relay control unit respectively; The wherein J1 termination live wire of power supply unit input, the input of J2 termination zero line, input end 1 end of transformer RP1,5 ends, connect J1 end, J2 end respectively, also be connected to voltage dependent resistor (VDR) ZR1 between zero line and the live wire, secondary output 1 end of transformer, 2 termination current rectifying and wave filtering circuit P1 input ends, the input end of the output termination three-terminal voltage-stabilizing pipe Z1 of current rectifying and wave filtering circuit P1, three-terminal voltage-stabilizing pipe Z1 output termination electric energy metrical unit, capacitor C 2 is connected between three-terminal voltage-stabilizing pipe Z1 output terminal and the ground; Secondary output end 9, the 10 termination current rectifying and wave filtering circuit P2 input ends of transformer RP1, the input end of the output termination three-terminal voltage-stabilizing pipe Z2 of current rectifying and wave filtering circuit P2, three-terminal voltage-stabilizing pipe Z2 output terminal connects the single-chip microcomputer CPU (central processing unit), and capacitor C 5 is connected between three-terminal voltage-stabilizing pipe Z2 output terminal and the ground; The output terminal of current rectifying and wave filtering circuit P2 is succeeded electrical control unit.
In technique scheme, described three-terminal voltage-stabilizing pipe Z1, Z2 are the linear voltage stabilization pipe of low pressure reduction, low-power consumption.
In technique scheme, the relay in the described relay control unit is a 7.5V low driving voltage magnetic latching relay.
The beneficial effects of the utility model are: by using the linear voltage stabilization pipe of low pressure reduction, low-power consumption, reduce system voltage, use the low driving voltage relay simultaneously, make the electric energy meter oneself power consumption reduce (being no more than 0.35W) greatly.
Description of drawings
Fig. 1 is the circuit theory diagrams of the single-phase expense control of the utility model low-power consumption intelligent electric energy meter.
Fig. 2 is a circuit connection diagram of the present utility model.
Embodiment
The utility model is described in further detail below in conjunction with drawings and Examples:
As shown in Figure 1, present embodiment provides the single-phase expense control of a kind of low-power consumption intelligent electric energy meter, comprise power supply unit, electric energy metrical unit, single-chip microcomputer CPU (central processing unit), relay control unit and the ammeter data input-output unit that links to each other with the single-chip microcomputer CPU (central processing unit), its power supply unit output terminal connects electric energy metrical unit, single-chip microcomputer CPU (central processing unit) and relay control unit respectively; The single-chip microcomputer CPU (central processing unit) connects electric energy metrical unit, relay control unit and ammeter data input-output unit again respectively.
As shown in Figure 2, be circuit connection diagram of the present utility model.The wherein J1 termination live wire of power supply unit input, the input of J2 termination zero line, input end 1 end of transformer RP1,5 ends connect J1 end, J2 end respectively, also are connected to voltage dependent resistor (VDR) ZR1 between zero line and the live wire, and the protection electric energy meter does not damage when being subjected to attack such as lightning surge.Secondary output end 1 end of transformer RP1,2 termination current rectifying and wave filtering circuit P1 input ends, the input end of the output termination three-terminal voltage-stabilizing pipe Z1 of current rectifying and wave filtering circuit P1, three-terminal voltage-stabilizing pipe Z1 output D.C. regulated power supply VDDL, this road power supply offers the electric energy metrical unit, capacitor C 2 strobes, and is connected between three-terminal voltage-stabilizing pipe Z1 output terminal and the ground.
Secondary output end 9 ends of transformer RP1,10 termination current rectifying and wave filtering circuit P2 input ends, the input end of the output termination three-terminal voltage-stabilizing pipe Z2 of current rectifying and wave filtering circuit P2, three-terminal voltage-stabilizing pipe Z2 output D.C. regulated power supply VDDN, this road power supply mainly offers the single-chip microcomputer CPU (central processing unit), capacitor C 5 strobes, and is connected between three-terminal voltage-stabilizing pipe Z2 output terminal and the ground.The output terminal out-put supply VDD-JDQ of current rectifying and wave filtering circuit P2 succeeds electrical control unit, provide the relay divide-shut brake required driving voltage, its repeat circuit uses the low driving voltage magnetic latching relay of 7.5V, and required electric power output voltage is reduced, and effectively reduces the electric energy meter power consumption.
The linear voltage stabilization pipe that three-terminal voltage-stabilizing pipe Z1 in the foregoing description, Z2 are low pressure reduction, low-power consumption further reduces the electric energy meter power consumption.
Claims (3)
1. the single-phase control intelligent electric energy meter that takes of low-power consumption, comprise power supply unit, electric energy metrical unit, single-chip microcomputer CPU (central processing unit), relay control unit and the ammeter data input-output unit that links to each other with the single-chip microcomputer CPU (central processing unit), it is characterized in that: the power supply unit output terminal connects electric energy metrical unit, single-chip microcomputer CPU (central processing unit) and relay control unit respectively; The wherein J1 termination live wire of power supply unit input, the input of J2 termination zero line, input end 1 end of transformer RP1,5 ends, connect J1 end, J2 end respectively, be connected to voltage dependent resistor (VDR) ZR1 between zero line and the live wire, secondary output 1 end of transformer, 2 termination current rectifying and wave filtering circuit P1 input ends, the input end of the output termination three-terminal voltage-stabilizing pipe Z1 of current rectifying and wave filtering circuit P1, three-terminal voltage-stabilizing pipe Z1 output termination electric energy metrical unit, capacitor C 2 is connected between three-terminal voltage-stabilizing pipe Z1 output terminal and the ground; Secondary output end 9, the 10 termination current rectifying and wave filtering circuit P2 input ends of transformer RP1, the input end of the output termination three-terminal voltage-stabilizing pipe Z2 of current rectifying and wave filtering circuit P2, three-terminal voltage-stabilizing pipe Z2 output terminal connects the single-chip microcomputer CPU (central processing unit), and capacitor C 5 is connected between three-terminal voltage-stabilizing pipe Z2 output terminal and the ground; The output terminal of current rectifying and wave filtering circuit P2 is succeeded electrical control unit.
2. the single-phase control intelligent electric energy meter that takes of low-power consumption according to claim 1 is characterized in that: described three-terminal voltage-stabilizing pipe Z1, Z2 are the linear voltage stabilization pipe of low pressure reduction, low-power consumption.
3. the single-phase control intelligent electric energy meter that takes of low-power consumption according to claim 1 is characterized in that: the relay in the described relay control unit is a 7.5V low driving voltage magnetic latching relay.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205265383U CN201788214U (en) | 2010-09-13 | 2010-09-13 | Intelligent single-phase cost control electricity meter with low power consumption |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205265383U CN201788214U (en) | 2010-09-13 | 2010-09-13 | Intelligent single-phase cost control electricity meter with low power consumption |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201788214U true CN201788214U (en) | 2011-04-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010205265383U Expired - Lifetime CN201788214U (en) | 2010-09-13 | 2010-09-13 | Intelligent single-phase cost control electricity meter with low power consumption |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102157031A (en) * | 2011-04-19 | 2011-08-17 | 武汉盛帆电子股份有限公司 | Battery-changeable single-phase charge-controlled intelligent electric meter used in state grid |
| CN103558428A (en) * | 2013-11-18 | 2014-02-05 | 国家电网公司 | Three-phase intelligent watt hour meter control device |
| CN104330621A (en) * | 2014-11-11 | 2015-02-04 | 苏州工业职业技术学院 | Electric appliance energy consumption tester |
| CN111693768A (en) * | 2020-06-11 | 2020-09-22 | 保定市凯华电气科技有限公司 | Electrical appliance subsidy control system |
-
2010
- 2010-09-13 CN CN2010205265383U patent/CN201788214U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102157031A (en) * | 2011-04-19 | 2011-08-17 | 武汉盛帆电子股份有限公司 | Battery-changeable single-phase charge-controlled intelligent electric meter used in state grid |
| CN102157031B (en) * | 2011-04-19 | 2012-12-26 | 武汉盛帆电子股份有限公司 | Battery-changeable single-phase charge-controlled intelligent electric meter used in state grid |
| CN103558428A (en) * | 2013-11-18 | 2014-02-05 | 国家电网公司 | Three-phase intelligent watt hour meter control device |
| CN103558428B (en) * | 2013-11-18 | 2016-03-23 | 国家电网公司 | A kind of three-phase intelligent watt-hour meter control device |
| CN104330621A (en) * | 2014-11-11 | 2015-02-04 | 苏州工业职业技术学院 | Electric appliance energy consumption tester |
| CN111693768A (en) * | 2020-06-11 | 2020-09-22 | 保定市凯华电气科技有限公司 | Electrical appliance subsidy control system |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110406 |