Twin-core electric energy meter

Abstract

The invention relates to a twin-core electric energy meter, comprising a metering module (1) and a management module (2) electrically connected with the metering module (1), the metering module (1) comprises a metering chip (11) located in a bottom case (3) of the electric energy meter and taken as a mainboard, and the management module (2) comprises a management chip (21) located above the metering chip (11) and electrically connected with the metering chip (11); and the metering chip (11) is isolated from the management chip (21) by virtue of a capacitor coupling chip (4), thus electric connection is realized. The twin-core electric energy meter provided by the invention can realize definite right function distinction and high transmission rate and is resistant to high pressure and goodin performance.

Description

technical field [0001] The invention relates to the field of electric meters, in particular to a double-core electric energy meter. Background technique [0002] The energy meter has both management and metering functions. At present, the energy meter is mainly made of a main board, that is, the components corresponding to the management module and the metering module are placed on a circuit board, and each module is controlled by the MCU on the circuit board. Control dominates. [0003] Although this design can save a certain amount of cost, the permissions and functions are not clear, and it is easy to cause misoperation of the electric energy meter. More importantly, most of the metering modules and management modules of existing electric energy meters are isolated by optocouplers, which cannot withstand high voltage, making the transmission rate between the metering module as an authority module and the management module as a functional module low. Contents of the inv...

AI Technical Summary

Problems solved by technology

[0003] Although this design can save a certain amount of cost, the permissions and functions are not clear, and it is easy to cause misoperation of the electric energy meter.

More importantly, most of the metering modules and management modules of existing electric energy meters are isolated by optocouplers, which cannot withstand high voltage, which makes the transmission rate between the metering module as an authority module and the management module as a functional module low.

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