CN201859163U - Electric quantity register - Google Patents
Electric quantity register Download PDFInfo
- Publication number
- CN201859163U CN201859163U CN2010205934787U CN201020593478U CN201859163U CN 201859163 U CN201859163 U CN 201859163U CN 2010205934787 U CN2010205934787 U CN 2010205934787U CN 201020593478 U CN201020593478 U CN 201020593478U CN 201859163 U CN201859163 U CN 201859163U
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- voltage
- electric current
- acquisition device
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- Expired - Fee Related
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Abstract
The utility model discloses an electric quantity register which comprises a shell body, a circuit part arranged in the shell body and a connection part connected with the shell body. A display screen, a display switching key, a reset button, a current line jack and a voltage line jack are formed on the shell body; the circuit part comprises a voltage collector, a current collector, a digital multiplier, an A/D (Analog to Digital) converter, a single chip, a frequency division counter and a trigger; the connection part comprises a voltage line with an alligator clip at the tail end and a current line with a current clamp head at the tail end; and a miniature three-phase switch is arranged in the middle position of the voltage line. The electric quantity register can accurately record electric quantity when a meter is replaced and has the advantages of simple structure, convenience in use, safety, reliability and accurate measurement.
Description
Technical field
The utility model relates to a kind of instrument that electric weight is temporarily stored and measured.
Background technology
When measuring apparatus during in normal operation, electric current enters electric energy meter, and electric energy meter will recording user institute power consumption thus.But when supplier of electricity is changed the gauging table timing, need the short circuit electric current, off voltage, this method can guarantee do not finish the electric energy meter work of changing under the power-off condition, but this moment, electric current just can't enter electric energy meter, and the client is still in electricity consumption during the replacing electric energy meter, so this part electric weight does not go on record, lose in vain, cause the supplier of electricity electric quantity loss.
Summary of the invention
The purpose of this utility model just provides a kind of instrument at the power consumption of changing gauging table timing record client, and for achieving the above object, technical solution adopted in the utility model is:
Comprise housing, be located at the circuit part in the housing, and the wiring part that is connected with housing, housing is provided with display screen, display switching key, reset button, electric current plug wire hole and voltage plug wire hole, circuit part comprises the voltage acquisition device, the current acquisition device, digital multiplier, A/D converter, single-chip microcomputer, frequency counter and trigger, digital multiplier wherein, A/D converter, single-chip microcomputer is connected successively with frequency counter, the voltage acquisition device is connected digital multiplier respectively with the current acquisition device, trigger connects single-chip microcomputer, the voltage acquisition device connects the voltage plug wire hole, the current acquisition device connects the electric current plug wire hole, single-chip microcomputer connects display switching key, frequency counter connects display screen, trigger connects reset button, the wire connecting portion branch comprises the pressure-wire of terminal band crocodile clip and the electric current line of terminal belt current binding clip, the centre position of pressure-wire is provided with small-sized threephase switch, the front end of pressure-wire is plugged in the voltage plug wire hole, and the front end of electric current line is plugged in the electric current plug wire hole.Pressure-wire and electric current line all adopt annealed copper wire.
The annealed copper wire of pressure-wire select tape crocodile clip, and have small-sized threephase switch can conveniently be clipped in voltage dedicated location in flakes, can the outlet spark, and security is good, obtains the accuracy height of voltage; The electric current line adopts the annealed copper wire of band split-core type meter, only need be on the electric current inlet wire during work with electric current binding clip pincers, and it is accurately convenient to obtain electric current; Voltage sample device, current sampler, digital multiplier and A/D converter constitute the electric energy measurement unit jointly, can realize the calculating of electric weight, and single-chip microcomputer is as control section, the demonstration of may command different parameters, and realize the data zero clearing.
The utlity model has simple in structure, esy to use, safe and reliable, measure accurate characteristics, to supplying the fair more calculating electric weight of electricity consumption both sides, can during changing electric energy meter, not remedy electric weight generation contradiction, and it is cost-saved for supplier of electricity, reduce electricity charge loss, have remarkable economic efficiency.
Description of drawings
Fig. 1 is the structural representation of the utility model housing parts;
Fig. 2 is the circuit block diagram of the utility model circuit part.
Embodiment
Below in conjunction with accompanying drawing the utility model is described further:
As shown in Figure 1, display screen 2, display switching key 3, reset button 4, electric current plug wire hole 5 and voltage plug wire hole 6 are housed respectively on the housing 1, wherein electric current plug wire hole 5 has Ia and two line holes of Ic, and voltage plug wire hole 6 has Ua, Ub and three jacks of Uc.The wire connecting portion branch comprises pressure-wire and electric current line, wherein the end of pressure-wire has crocodile clip, its front end is plugged in the voltage plug wire hole 6, small-sized threephase switch is arranged on the centre position of pressure-wire, can guarantee operating personnel's safety, the end of electric current line has the electric current binding clip, and its front end is plugged in the electric current plug wire hole 5.
As shown in Figure 2, circuit part comprises voltage acquisition device, current acquisition device, digital multiplier, A/D converter, single-chip microcomputer, frequency counter and trigger, voltage sample device voltage transformer (VT), the current sampler Current Transformer, single-chip microcomputer adopts 74LS160.Digital multiplier, A/D converter, single-chip microcomputer and frequency counter are connected successively, the voltage acquisition device is connected digital multiplier respectively with the current acquisition device, trigger connects single-chip microcomputer, the voltage acquisition device connects voltage plug wire hole 6, the current acquisition device connects electric current plug wire hole 5, single-chip microcomputer connects display switching key 3, and frequency counter connects display screen 2, and trigger connects reset button 4.
When using this electric weight register to measure, connection box of electric energy meter box electric current this moment short circuit in flakes, voltage disconnects in flakes, of electric current inlet wire or the outlet of current clamp head-clamp in the electric energy metrical terminal box, the voltage that crocodile clip is clipped in the electric energy metrical terminal box is gone up in flakes, and they obtain current phasor signal and voltage vector signal respectively.The current phasor signal is by electric current line input current collector, the voltage vector signal is by pressure-wire input voltage collector simultaneously, the voltage and current vector of gathering is through the analog quantity that calculates of multiplier, at the high electronegative potential that converts easier identification through A/D converter to, current potential enters 74LS160 just can calculate electric flux.By the switching of display switching key 3, Single-chip Controlling display screen 2 can show the time of work and the parameters of electric power of duration of work, comprises information such as voltage, electric current, electric flux, the electricity charge.When pressing reset button 4, trigger will send a low voltage pulse signal to single-chip microcomputer, by the zero clearing that resets of Single-chip Controlling frequency counter.
This electric weight register can be applied to high pressure 100V user, can carry out the electric weight storage and the accurately metering of phase three-wire three table.
Claims (2)
1. electric weight register, comprise housing (1), be located at the circuit part in the housing (1), and the wiring part that is connected with housing (1), it is characterized in that: housing (1) is provided with display screen (2), display switching key (3), reset button (4), electric current plug wire hole (5) and voltage plug wire hole (6), circuit part comprises the voltage acquisition device, the current acquisition device, digital multiplier, A/D converter, single-chip microcomputer, frequency counter and trigger, digital multiplier wherein, A/D converter, single-chip microcomputer is connected successively with frequency counter, the voltage acquisition device is connected digital multiplier respectively with the current acquisition device, trigger connects single-chip microcomputer, the voltage acquisition device connects voltage plug wire hole (6), the current acquisition device connects electric current plug wire hole (5), single-chip microcomputer connects display switching key (3), frequency counter connects display screen (2), trigger connects reset button (4), the wire connecting portion branch comprises the pressure-wire of terminal band crocodile clip and the electric current line of terminal belt current binding clip, the centre position of pressure-wire is provided with small-sized threephase switch, the front end of pressure-wire is plugged in the voltage plug wire hole, and the front end of electric current line is plugged in the electric current plug wire hole.
2. electric weight register according to claim 1 is characterized in that: pressure-wire and electric current line all adopt annealed copper wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205934787U CN201859163U (en) | 2010-11-05 | 2010-11-05 | Electric quantity register |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205934787U CN201859163U (en) | 2010-11-05 | 2010-11-05 | Electric quantity register |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201859163U true CN201859163U (en) | 2011-06-08 |
Family
ID=44104967
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205934787U Expired - Fee Related CN201859163U (en) | 2010-11-05 | 2010-11-05 | Electric quantity register |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201859163U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105182022A (en) * | 2015-10-27 | 2015-12-23 | 国网山东利津县供电公司 | Electric quantity depositing device and method during meter installation, power connection and exchange |
-
2010
- 2010-11-05 CN CN2010205934787U patent/CN201859163U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105182022A (en) * | 2015-10-27 | 2015-12-23 | 国网山东利津县供电公司 | Electric quantity depositing device and method during meter installation, power connection and exchange |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110608 Termination date: 20111105 |