CN2537982Y - Novel electric energy and electric power measuring meter - Google Patents
Novel electric energy and electric power measuring meter Download PDFInfo
- Publication number
- CN2537982Y CN2537982Y CN02223674U CN02223674U CN2537982Y CN 2537982 Y CN2537982 Y CN 2537982Y CN 02223674 U CN02223674 U CN 02223674U CN 02223674 U CN02223674 U CN 02223674U CN 2537982 Y CN2537982 Y CN 2537982Y
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- CN
- China
- Prior art keywords
- circuit
- watchcase
- power
- electric energy
- connector
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Abstract
The utility model discloses a novel electric energy and electric power measuring instrument, comprising an instrument shell and a measuring circuit consisting of an electric current sampling circuit, a voltage sampling circuit, a signal transforming circuit, a signal isolating circuit, a signal processing circuit, a decoding and driving circuit, a display, and a direct current working power. The instrument also comprises a commercial power input connector connecting with the input terminal and the output terminal of the measuring circuit and a load power connector. The utility model needs not to be installed and the commercial power plug or socket can be directly intercalated and composited with the commercial power input connector. The plug of the electric appliance is intercalated and composited with the load power connector and the sampling signals of the sampling circuit and the signal transforming circuit are processed by a single chip, to automatically calculate the power and the electricity consumption. The kilowatt hour and the power value are directly shown on the display in the form of numbers. Therefore, the electricity consumption of a single electric appliance can be conveniently measured. The instrument has the advantages of less self power consumption, simple structure, low cost and being convenient for using.
Description
Technical field
The utility model relates to a kind of electric energy and electric power measurement instrument, particularly a kind of new electric energy and electric power measurement instrument.
Background technology
In the prior art various family expenses electric energy meters such as mechanical type and electronic type all be install on the wall or frame mounted, be mainly used in the total electricity consumption of measuring various electrical equipment in the family.If measure the power consumption situation of separate unit electrical equipment in the family, need in addition to use very inconvenient at power supply input, the output terminal of this electric energy meter plug and socket of connecting with the mains with the electric energy meter of this mechanical type or electronic type.And this electric energy meter can not be measured power simultaneously.Existing electric power meter all is that dish is gone up installation or frame dress, is not suitable for very much family and uses in the electric power of measuring separate unit electrical equipment.
Summary of the invention
Goal of the invention of the present utility model is in order to overcome the deficiencies in the prior art part, need not install specially and provide a kind of, the new electric energy and the electric power measurement instrument that self have plug and socket, it can be measured simultaneously to the power consumption and the electric power of separate unit electrical equipment in the household electrical appliance.
In order to realize the foregoing invention purpose, the technical scheme that the utility model adopted is: a kind of new electric energy and electric power measurement instrument, comprise a watchcase and be installed in the metering circuit of forming by current sampling circuit, voltage sample circuit, signal conversion circuit, signal isolation circuit, signal processing circuit, decoding and driving circuit, display, dc supply in the watchcase, have a form on the top panel of watchcase, display is positioned at described form; It is characterized in that also comprising a civil power input connector that links to each other with the metering circuit input end and a load power source connector that links to each other with the metering circuit output terminal.
Described civil power input connector is one to be fixed on plug or the socket on the watchcase bottom panel.Or be outer plug or socket of a usefulness cable export list shell.
Described load power source connector is one to be fixed on the socket on the watchcase rear surface.Or be the outer socket of a usefulness cable export list shell.
Principle of work of the present utility model is as follows: the plug of civil power or socket are plugged together with the civil power input connector be connected, the plug of electrical equipment plugs together with the load power source connector and is connected, the input mains supply enters the electrical appliance of required measurement through the utility model, the used electric current of electrical equipment is taken a sample by current sampling circuit, line voltage is taken a sample by voltage sample circuit, the voltage and current sampled signal is the input signal translation circuit all, the pulse signal that is transformed into pulsed frequency and the proportional relation of power is sent into the single-chip microcomputer in the signal processing circuit, the process of measurement that the single-chip microcomputer operation is finished in advance, calculate power and electric degree value, and the power that calculates and electric degree Value Data signal are outputed to decoding and driving circuit convert reveal codes to and deliver to display and show electric degree value and performance number.
Owing to adopted design proposal as above, the utility model need not be installed, directly the plug of civil power or socket are plugged together with the civil power input connector and be connected, the plug of electrical equipment plugs together with the load power source connector and is connected, and use single-chip microcomputer that the sampled signal of sample circuit and signal conversion circuit is handled, automatically calculate power and power consumption, by display with numeral intuitively form show electric degree number and performance number simultaneously, thereby can measure the electricity consumption situation of separate unit electrical equipment easily.The utlity model has the advantage that oneself power consumption is little, simple in structure, cost is low, easy to use, be applicable to the electricity consumption situation or the laboratory measurement usefulness that monitor separate unit electrical equipment in the family.
Description of drawings
Fig. 1 is the structural representation of the utility model embodiment 1;
Fig. 2 is the vertical view of Fig. 1;
Fig. 3 is the electrical block diagram of the utility model embodiment 1;
Fig. 4 is the circuit theory diagrams of the utility model embodiment 1;
Fig. 5 is the structural representation of the utility model embodiment 2;
Fig. 6 is the structural representation of the utility model embodiment 3;
Fig. 7 is the structural representation of the utility model embodiment 4;
Embodiment
Embodiment 1: as Fig. 1～a kind of new electric energy and electric power measurement instrument shown in Figure 3, comprise a watchcase 1 and be installed in the metering circuit of forming by current sampling circuit 2, voltage sample circuit 3, signal conversion circuit 4, signal isolation circuit 5, signal processing circuit 6, decoding and driving circuit 7, display 8, dc supply 9,10 in the watchcase 1, have a form 11 on the top panel of watchcase 1, display 8 is positioned at form 11; It comprises a civil power input connector 12 that links to each other with the metering circuit input end and a load power source connector 13 that links to each other with the metering circuit output terminal.Civil power input connector 12 is one directly to be fixed on the plug on watchcase 1 bottom panel.Load power source connector 13 is that a usefulness cable 14 is drawn watchcase 1 socket outward by the rear panel of watchcase 1.
Current sampling circuit 2 comprises shunt F, resistance R as shown in Figure 4
1, R
2And capacitor C
1, C
2Resistance R
1, R
2An end link to each other with F respectively, the other end is connected to signal conversion circuit 4 respectively, and current sampling signal is sent into signal conversion circuit 4.
Signal processing circuit 6 comprises single-chip microcomputer D
1, quartz crystal XTAL2, capacitor C
6And C
7, single-chip microcomputer D
1Adopt CMOS low-power scm C2051, measure and calculate program Solidification in the inner ROM of single-chip microcomputer, the pulse signal of signal isolation circuit 5 is by single-chip microcomputer D
1P
35The pin input is by single-chip microcomputer D
1P
30Pin output electric degree value and performance number signal are delivered to decoding and driving circuit 7, single-chip microcomputer D
1P
31Pin and P
34Pin also outputs a control signal to decoding and driving circuit 7.
Decoding comprises integrated circuit D with driving circuit 7
2And resistance R
12, single-chip microcomputer D
1The electric degree Value Data signal of output and performance number data-signal are by integrated circuit D
2The input of DIN end pin, integrated circuit D
2SEGA-
A-SEGA-
DPPin is exported display segment code to display 8, integrated circuit D
2DIG0
-DIG
8Pin output bit code is to display 8.Integrated circuit D
2Model is MAX7219.
Display 8 is made up of eight LED charactrons.
By capacitor C
8, resistance R
10, diode V
1, diode V
2, capacitor C
9, voltage stabilizing diode V
3, capacitor C
10, C
11The integrated circuit N that the dc supply of forming 9 is given in the signal conversion circuit 4
3Power supply.
By module N
2, capacitor C
12, resistance R
7, diode V
4, capacitor C
13, integrated circuit N
3, capacitor C
13, capacitor C
17, capacitor C
15, capacitor C
16, transformer T
1, diode V
5, diode V
6, inductance L
2, resistance R
15The dc supply of forming 10 is given single-chip microcomputer D
1With integrated circuit D
2Power supply.
Embodiment 2: civil power input connector 12 is one directly to be fixed on the plug on watchcase 1 bottom panel.Load power source connector 13 is one directly to be fixed on the socket on watchcase 1 rear surface.All the other are all with embodiment 1.
Embodiment 3: civil power input connector 12 is that a usefulness cable 15 is drawn watchcase 1 plug outward by the front panel of watchcase 1.Load power source connector 13 is one directly to be fixed on the socket on watchcase 1 rear surface.All the other are all with embodiment 1.
Embodiment 4: civil power input connector 12 is that a usefulness cable 15 is drawn watchcase 1 plug outward by the front panel of watchcase 1.Load power source connector 13 is that a usefulness cable 14 is drawn watchcase 1 socket outward by the rear panel of watchcase 1.All the other are all with embodiment 1.
Claims (7)
1, a kind of new electric energy and electric power measurement instrument, comprise a watchcase (1) and be installed in the metering circuit of forming by current sampling circuit (2), voltage sample circuit (3), signal conversion circuit (4), signal isolation circuit (5), signal processing circuit (6), decoding and driving circuit (7), display (8), dc supply (9,10) in the watchcase (1), have a form (11) on the top panel of watchcase (1), display (8) is positioned at described form (11); It is characterized in that also comprising a civil power input connector (12) that links to each other with the metering circuit input end and a load power source connector (13) that links to each other with the metering circuit output terminal.
2, a kind of new electric energy according to claim 1 and electric power measurement instrument is characterized in that described civil power input connector (11) is one to be fixed on the plug on watchcase (1) bottom panel.
3, a kind of new electric energy according to claim 1 and electric power measurement instrument is characterized in that described civil power input connector (11) is one to be fixed on the socket on watchcase (1) top panel.
4, a kind of new electric energy according to claim 1 and electric power measurement instrument is characterized in that described civil power input connector (11) is that a usefulness cable (15) is drawn the outer plug of watchcase.
5, a kind of new electric energy according to claim 1 and electric power measurement instrument is characterized in that described civil power input connector (11) is that a usefulness cable (15) is drawn the outer socket of watchcase.
6,, it is characterized in that described load power source connector (12) is one to be fixed on the socket on watchcase (1) rear surface according to claim 1 or 2 or 3 or 4 or 5 described a kind of new electric energy and electric power measurement instrument.
7,, it is characterized in that described load power source connector (12) is that a usefulness cable (14) is drawn the outer socket of watchcase according to claim 1 or 2 or 3 or 4 or 5 described a kind of new electric energy and electric power measurement instrument.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN02223674U CN2537982Y (en) | 2002-03-25 | 2002-03-25 | Novel electric energy and electric power measuring meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN02223674U CN2537982Y (en) | 2002-03-25 | 2002-03-25 | Novel electric energy and electric power measuring meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2537982Y true CN2537982Y (en) | 2003-02-26 |
Family
ID=33701291
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN02223674U Expired - Fee Related CN2537982Y (en) | 2002-03-25 | 2002-03-25 | Novel electric energy and electric power measuring meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2537982Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100462725C (en) * | 2003-12-04 | 2009-02-18 | 阿克塔里斯英国有限公司 | Electric power meter |
| CN103852636A (en) * | 2014-03-26 | 2014-06-11 | 哈尔滨工业大学 | Electric energy measuring chip based electric energy measuring circuit |
| CN103954831A (en) * | 2014-05-09 | 2014-07-30 | 中国电子科技集团公司第四十一研究所 | Average power measuring circuit and method for weak continuous wave signals |
-
2002
- 2002-03-25 CN CN02223674U patent/CN2537982Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100462725C (en) * | 2003-12-04 | 2009-02-18 | 阿克塔里斯英国有限公司 | Electric power meter |
| CN103852636A (en) * | 2014-03-26 | 2014-06-11 | 哈尔滨工业大学 | Electric energy measuring chip based electric energy measuring circuit |
| CN103954831A (en) * | 2014-05-09 | 2014-07-30 | 中国电子科技集团公司第四十一研究所 | Average power measuring circuit and method for weak continuous wave signals |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |