CN201434994Y

CN201434994Y - Multifunctional electric energy metering control module

Info

Publication number: CN201434994Y
Application number: CN2009200918357U
Authority: CN
Inventors: 付秋生; 王勇军; 肖难; 王云刚; 王俊平
Original assignee: Zhengzhou Brand-New Cap Electronics Co Ltd
Current assignee: Newcapec Electronics Co Ltd
Priority date: 2009-07-22
Filing date: 2009-07-22
Publication date: 2010-03-31
Anticipated expiration: 2019-07-22

Abstract

The utility model discloses a multifunctional electric energy metering control module, which comprises an electric energy metering control chip. A communication interface of the electric energy metering control chip is electrically connected with an electric current loop communication circuit and a data storage circuit respectively; the input terminal of the electric energy metering control chip is electrically connected with a relay closed loop detection circuit, a keystroke arrangement circuit, a power supply voltage monitoring circuit and a voltage-current sampling circuit respectively; andthe output terminal of the electric energy metering control chip is electrically connected with a display circuit, a relay control circuit, a working state indicating circuit and a metering impulseoutput circuit respectively. The module integrates two-way electric energy metering, malignant load recognition and power recognition into a whole, and the metering data and other electrical parameters are stored locally, thereby effectively preventing the use of malignant load and setting the power limit of the malignant load on the spot according to the requirements of users. The metering data is stored in the module, so that the dependence on communication is reduced, and the operation of each module is independent from others. The electric current loop with photoelectric isolation is adopted for communication, thereby effectively preventing lightning stroke and surge.

Description

Multifunctional electric energy measure control module

Technical field

The utility model relates to centralized electric-control system, especially relates to multifunctional electric energy measure control module.

Background technology

Centralized electric-control system is mainly used in aspects such as electric energy metrical, electricity consumption pre-payment management and Electrical Safety management, the fire prevention in students' dormitory, enterprises and institutions dormitory.The electric energy metrical control module that is used for centralized electric-control system at present generally adopts by ADE7755 electric energy computation chip and peripheral circuit and constitutes.Because above-mentioned electricity consumption occasion is violated the electricity consumption regulation often and is used phenomenons such as high-power resistive heating load electric furnace, immersion heater, hair dryer, electromagnetic oven, micro-wave oven, and present electric energy metrical control module is taked the control of loading of the recognition method of power increment more, therefore can not effectively prevent the use of pernicious load; Exist poor anti jamming capability, system can not effectively prevent thunderbolt and surge simultaneously; Data storage adopts centralized stores in collector, and in a single day collector goes wrong, and all modules that are attached thereto can not measure and control.

The utility model content

The utility model purpose is to provide a kind of multiple functional, stable and reliable operation multifunctional electric energy measure control module.

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

Multifunctional electric energy measure control module described in the utility model, it comprises the electric energy metrical control chip; Described electric energy metrical control chip communication interface is electrically connected with electric current loop communicating circuit, data storage circuitry respectively; Electric energy metrical control chip input end is provided with circuit, power supply supply voltage observation circuit, electric current and voltage sample circuit with relay closed-loop detection circuit, button respectively and is electrically connected; Electric energy metrical control chip output terminal is electrically connected with display circuit, control relay circuit, duty indicating circuit, metrical pulse output circuit respectively.

The utility model advantage is to take two-way electric energy metrical, pernicious load identification, power to discern in one, and continuous data and the local storage of other electrical quantity.Effectively prevent the use of pernicious load, and can carry out the scene according to user's demand and set pernicious load qualification power, satisfied growing individual demand.The local storage of continuous data, to the dependence reduction of communication, each module work is independent of each other.Control relay circuit band closed loop detects, and guarantees that the instruction of sending obtains carrying out.The electric current loop that communication adopts band photoelectricity to isolate has improved the communication reliability and has reduced production cost, and the simultaneity factor antijamming capability is strong, has effectively prevented thunderbolt and surge.

Description of drawings

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

Fig. 2 is electric energy metrical control chip, the electric current and voltage sample circuit schematic diagram of Fig. 1.

Fig. 3 is the electric current loop communicating circuit schematic diagram of Fig. 1.

Fig. 4-1,4-2 are the control relay circuit schematic diagrams of Fig. 1.

Fig. 5 is the relay closed-loop detection circuit schematic diagram of Fig. 1.

Fig. 6 is the power supply supply voltage observation circuit schematic diagram of Fig. 1.

Fig. 7 is the metrical pulse output circuit schematic diagram of Fig. 1.

Fig. 8 is the duty indicating circuit schematic diagram of Fig. 1.

Fig. 9 is that the button of Fig. 1 is provided with circuit theory diagrams.

Figure 10 is the data storage circuitry schematic diagram of Fig. 1.

Embodiment

As shown in the figure, multifunctional electric energy measure control module described in the utility model, it comprises electric energy metrical control chip MSP430FE42x; Described electric energy metrical control chip MSP430FE42x communication interface is electrically connected with electric current loop communicating circuit, data storage circuitry respectively; Electric energy metrical control chip MSP430FE42x input end is provided with circuit, power supply supply voltage observation circuit, electric current and voltage sample circuit with relay closed-loop detection circuit, button respectively and is electrically connected; Electric energy metrical control chip MSP430FE42x output terminal is electrically connected with LCD display circuit, control relay circuit, duty indicating circuit, metrical pulse output circuit respectively.

Claims

1, a kind of multifunctional electric energy measure control module, it comprises the electric energy metrical control chip; It is characterized in that: described electric energy metrical control chip communication interface is electrically connected with electric current loop communicating circuit, data storage circuitry respectively; Electric energy metrical control chip input end is provided with circuit, power supply supply voltage observation circuit, electric current and voltage sample circuit with relay closed-loop detection circuit, button respectively and is electrically connected; Electric energy metrical control chip output terminal is electrically connected with display circuit, control relay circuit, duty indicating circuit, metrical pulse output circuit respectively.