CN2465194Y

CN2465194Y - Three-phase multi-function electric meter for preventing electricity fraudulent use

Info

Publication number: CN2465194Y
Application number: CN 01211541
Authority: CN
Inventors: 姜良宝; 娄光因; 孙少华; 于国军
Original assignee: Individual
Current assignee: Individual
Priority date: 2001-02-06
Filing date: 2001-02-06
Publication date: 2001-12-12
Anticipated expiration: 2011-02-06

Abstract

The utility model relates to a three-phase multi-function electric meter for preventing electricity fraudulent use, which is suitable for the metering and the management for industrial electricity and the power supply of small electric three-phase electricity users of power supply departments. Terminals of input terminals of three phases A, B, and C for positioning the meter are connected with resistance diverter integrated modules with logic dividing frequency. Two sets of main and auxiliary machines of a microcomputer CPU respectively process data; the utility model is separately metered by divided the phases, shared time, and displayed for the paid cost rate for the condition of power utilization of the three phases. The utility model has the advantages that the metering is accurate, the utility model can prevent electricity fraudulent use, logic programming, the input and the output of the data of an infrared programming port can be carried out by a palm computer, and the utility model can make foundation for the regional computer management of the power supply systems.

Description

A kind of three-phase multifunctional anti-electricity-theft electric energy meter

The utility model relates to the electric industry department that is applicable to city, rural area, to low-power three-phase electricity consumer power supply metering, a kind of three-phase multifunctional anti-electricity-theft electric energy meter of management.

The watt-hour meter of the standard machinery formula before the utility model adopts the electromagnetic induction principle manufacturing, can not realize the control of pulse output and infrared copy meter, and Watch Error is big, and the life-span is short, when three-phase load power is uneven, measure inaccurate, again can not be anti-electricity-theft.

For overcoming the deficiency that existing electric energy meter exists, the purpose of this utility model is to design accurate measurement, can be anti-electricity-theft, but phase-splitting measure separately, be convenient to realize a kind of three-phase multifunctional anti-electricity-theft electric energy meter of concentrated controling management.

For achieving the above object, the design proposal of three-phase multifunctional anti-electricity-theft electric energy meter of the present utility model is, advance to show at A, B, C three-phase connecting on the terminal of input end and have divertor, pulse communication plug, photoelectrical coupler, light emitting diode, crystal oscillator, the logic vector multiplier, the logic frequency division divertor integration module of adjustable resistance; On lower house, fixing the top have the pulse socket communication, ± power panel of 5V power supply, transformer, wave filter, register and number wheel show; Also be provided with infrared programming port on upper shell, pulse shows mouth, microcomputer CPU main frame, microcomputer CPU subsidiary engine and electric weight charactron or liquid crystal display and electric weight output key.

The characteristics of a kind of three-phase multifunctional anti-electricity-theft electric energy meter of the present utility model are, owing to adopted logic frequency division divertor integration module, this module has single-phase counting, anti-phase tally function, the user is single-phase when making electricity consumption, needn't consider the three-phase equilibrium imbalance problem, and the user is during for stealing reversal connection circuit, its inner doing as usual is measured, and therefore has anti-stealing electricity function with positive dirction metering unanimity; Main is, this table adopts large scale integrated circuit, and work is carried out in the main and auxiliary classification of microcomputer CPU, to sampling pulse timesharing or phase-splitting metering, can accomplish mutual control, makes program run more reliable; The infrared programming port of establishing in the structure can carry out programming in logic with palm PC, and data input and output can be the zonal computer management of electric power system and lay the first stone.

Accompanying drawing 1, be a kind of structural representation of three-phase multifunctional anti-electricity-theft electric energy meter.

Accompanying drawing 2 is the structural representation of the logic frequency division divertor integration module 6 in the accompanying drawing 1.

Accompanying drawing 3, for A-A in the accompanying drawing 2 to cut-away view.

Accompanying drawing 4 is a kind of principle of work block diagram of three-phase multifunctional anti-electricity-theft electric energy meter.

For structure of the present utility model and principle are had further understanding, details are as follows in conjunction with embodiment of the present utility model:

Embodiment, a kind of three-phase multifunctional anti-electricity-theft electric energy meter.

With reference to accompanying

drawing

1,2,3, the structure of a kind of three-phase multifunctional anti-electricity-theft electric energy meter of the present utility model is, by table tail loam cake (1), and table tail (4), lower house (5), upper shell (21) constitutes the electric energy meter shell together; A, the B that is provided with in table tail (4), C three-phase inlet wire post (2) are gone up by screw (3) and are being connected the following divertor (24) that has the micro-ohm level, pulse communication plug (25), the top has photoelectric coupling circuit (26), light emitting diode (27), crystal oscillator (28), logic vector multiplier (29), the logic frequency division divertor integration module (6) of adjustable resistance (30); On lower house (5), fixing the top have pulse socket communication (9), ± power panel (14) of 5V power supply (10), transformer (11), wave filter (13), register (15) and number wheel show (16); Also be provided with infrared programming port (7) on upper shell (21), pulse shows mouthful (8), microcomputer CPU main frame (17), microcomputer CPU subsidiary engine (18), electric weight charactron or liquid crystal display (19), electric weight output key (22); (12) among the figure are the lead sealing screw, and (20) are hooks, and (23) are the auricles of upper and lower casing.

The principle of work of this table (as accompanying drawing 4), A, B, the C three-phase inputs or outputs respectively, at logic frequency division divertor integration module (6) divertor (24) is produced potential difference (PD), by adjustable resistance (30), logic vector multiplier (29), crystal oscillator (28), photoelectric coupling circuit (26) produces pulse, by pulse communication plug (25), pulse socket communication (9) shows at light emitting diode (27), microcomputer CPU main frame (17) is sent in the pulse that produces respectively, microcomputer CPU subsidiary engine (18) carries out data processing, phase-splitting is measured separately to sampling pulse, timesharing, and multiple rate metering, show by electric weight charactron or liquid crystal display (19), and save the data in the register (15).

Claims

1, a kind of three-phase multifunctional anti-electricity-theft electric energy meter, it includes table tail loam cake (1), A, B, C three-phase inlet wire post (2), screw (3), table tail (4), lower house (5), lead sealing screw (12), hook (20), upper shell (21), on, the auricle of lower house (23) is characterized in that it also includes a bottom and has divertor (24), pulse communication plug (25), top has photoelectric coupling circuit (26), light emitting diode (27), crystal oscillator (28), logic vector multiplier (29), the logic frequency division divertor integration module (6) of adjustable resistance (30); Be fixed on top on the housing (5) have pulse socket communication (9), ± power panel (14) of 5V power supply (10), transformer (11), wave filter (13), register (15), the number wheel shows (16); Be located at the infrared programming port (7) on the upper shell (21), pulse shows mouthful (8), microcomputer CPU main frame (17), and microcomputer CPU subsidiary engine (18) and electric weight charactron or liquid crystal display (19), and electric weight output key (22) is formed.

2, a kind of three-phase multifunctional anti-electricity-theft electric energy meter according to claim 1, it is characterized in that A, B, C three-phase inlet wire post (2) produce pulse by three-phase frequency division divertor integration module (6) respectively, through microcomputer CPU main frame (17), microcomputer CPU subsidiary engine (18) phase-splitting is measured separately, timesharing, and multiple rate shows.