CN201754291U

CN201754291U - Sing-phase electronic prepayment dual-control electric energy meter

Info

Publication number: CN201754291U
Application number: CN2010202754763U
Authority: CN
Inventors: 付秋生; 王云刚; 刘恩臣
Original assignee: Zhengzhou Brand-New Cap Electronics Co Ltd
Current assignee: Newcapec Electronics Co Ltd
Priority date: 2010-07-29
Filing date: 2010-07-29
Publication date: 2011-03-02
Anticipated expiration: 2020-07-29

Abstract

The utility model discloses a single-phase electronic prepayment dual-control electric energy meter, which comprises an electric energy metering control unit. The electric energy metering control unit comprises an electric energy metering control module, and multiple paths of sampling circuits. The electric energy metering control module consists of an electric energy metering chip, a logic circuit, and a decoding circuit. The output ends of multiple paths of the sampling circuits are electrically connected with the input end of the electric energy metering chip respectively. The communication interface of the electric energy metering control module is electrically connected with a data storage module, a display module, a card-reading interface module, an RS485 communication module, and a current loop communication module respectively. The output end of the electric energy metering control module is electrically connected with the display module, and a relay control circuit respectively. The signal input ends of multiple paths of the sampling circuits are electrically connected with a user input line through a relay normally-open contact point in the relay control circuit respectively. The single-phase electronic prepayment dual-control electric energy meter has the advantages that: multi-loop metering and controlling are realized; the electricity consumption of the electrical appliances in all shunt circuits can be timely known and controlled; therefore, the single-phase electronic prepayment dual-control electric energy meter facilitates knowing the electricity utilization information and managing and controlling the electricity utilization for the user.

Description

Single-phase electronic prepayment double-control electric energy meter

Technical field

The utility model relates to the single-phase electronic prepayment electric energy meter, especially relates to single-phase electronic prepayment double-control electric energy meter.

Background technology

Single-phase single loop prepayment meter is widely used in the pre-payment in family, school student dormitory, enterprises and institutions dormitory etc.Present single-phase single loop prepayment meter is taked a loop metering and control more, total power consumption and electric power are presented at together, therefore power consumption and electric power that can only explicit user one tunnel, can not measure and control electrical appliance along separate routes, the user can not grasp current along separate routes power information, as the power of power consumption and electrical appliance etc., bring inconvenience for user's electricity consumption control and management.

The utility model content

The utility model purpose is to provide a kind of single-phase electronic prepayment double-control electric energy meter that is used for the multichannel electric control and management.

For achieving the above object, the utility model can be taked following technical proposals:

Single-phase electronic prepayment double-control electric energy meter described in the utility model, it comprises the electric energy metrical control module; Described electric energy metrical control module is made of electric energy metrical control module, multi-sampling circuit; Described electric energy metrical control module is made of electric energy computation chip, logical circuit, decoding scheme, and described multi-sampling circuit output terminal is electrically connected with described electric energy computation chip input end respectively; Described electric energy metrical control module communication interface is electrically connected with data memory module, LCD display module, card reading interface module, RS485 communication, electric current loop communication module respectively; Electric energy metrical control module output terminal is electrically connected with display module, control relay circuit respectively; Each road signal input part of described multi-sampling circuit is electrically connected with subscriber's drop by the relay normally open contact in the described control relay circuit respectively.

Described sample circuit is a two-way, constitutes by electric current, voltage sampling circuit.

Be electrically connected with work, warning circuit and two-way pulse indicating circuit at described electric energy metrical control module output terminal.

The utility model advantage is to realize multiloop metering and control.During work, give the electric energy computation chip in the electric energy metrical control module by the sample circuit in the described electric energy metrical control module with electric current, the voltage signal acquisition in controlled loop, each road realtime power, voltage, electric current, power consumption etc. are carried out independent metering, storage, demonstration and total electric weight is shared, when total electric weight uses up after, subscriber's drop is disconnected power failure by described control relay circuit.Therefore, the user can be as required implements control metering along separate routes to high-power electric appliances such as electric consumption on lighting, air-conditionings, in time understand each along separate routes electrical appliance power consumption and it is controlled, greatly facilitate grasp and the electricity consumption control and management of user to power information.

Description of drawings

Fig. 1 is a schematic block circuit diagram of the present utility model.

Fig. 2 is the electric energy metrical control unit circuit schematic diagram of Fig. 1.

Fig. 3 is the data memory module circuit theory diagrams of Fig. 1.

Fig. 4 is the card reading interface modular circuit schematic diagram of Fig. 1.

Fig. 5-1, Fig. 5-2, Fig. 5-the 3rd, the RS485 communication of Fig. 1, electric current loop communication module circuit theory diagrams.

Fig. 6-1, Fig. 6-2, Fig. 6-the 1st, the control relay circuit schematic diagram of Fig. 1.

Fig. 7 is power circuit principle figure of the present utility model.

Embodiment

As Fig. 1-shown in Figure 7, single-phase electronic prepayment double-control electric energy meter described in the utility model, it comprises power circuit, electric energy metrical control module 1; Described electric energy metrical control module 1 is made of electric energy metrical control module, two-way sample circuit; Described electric energy metrical control module is made of electric energy computation chip (MSP430FE42X), logical circuit, decoding scheme, and described two-way sample circuit output terminal is electrically connected with described electric energy computation chip (MSP430FE42X) input end respectively; Electric energy metrical control module communication interface is electrically connected with data memory module, LCD display module, card reading interface module, RS485 communication, electric current loop communication module respectively; Electric energy metrical control module output terminal is electrically connected with display module, control relay circuit respectively; Each road signal input part of two-way sample circuit is electrically connected with subscriber's drop by the relay normally open contact in the described control relay circuit respectively; Described two-way sample circuit constitutes by electric current, voltage sampling circuit.For providing the acousto-optic indication to the user more intuitively, be electrically connected with work, warning circuit and two-way pulse indicating circuit at electric energy metrical control module output terminal.

Claims

1. single-phase electronic prepayment double-control electric energy meter, it comprises electric energy metrical control module (1); It is characterized in that: described electric energy metrical control module is made of electric energy metrical control module, multi-sampling circuit; Described electric energy metrical control module is made of electric energy computation chip, logical circuit, decoding scheme, and described multi-sampling circuit output terminal is electrically connected with described electric energy computation chip input end respectively; Described electric energy metrical control module communication interface is electrically connected with data memory module, LCD display module, card reading interface module, RS485 communication, electric current loop communication module respectively; Electric energy metrical control module output terminal is electrically connected with display module, control relay circuit respectively; Each road signal input part of described multi-sampling circuit is electrically connected with subscriber's drop by the relay normally open contact (2,3) in the described control relay circuit respectively.

2. single-phase electronic prepayment double-control electric energy meter according to claim 1 is characterized in that: described sample circuit is a two-way, constitutes by electric current, voltage sampling circuit.

3. single-phase electronic prepayment double-control electric energy meter according to claim 1 and 2 is characterized in that: be electrically connected with work, warning circuit and two-way pulse indicating circuit at described electric energy metrical control module output terminal.