Touch electric energy meter

Abstract

The invention relates to a touch electric energy meter, which comprises a meter shell (1) and an electronic measurement circuit board (2) arranged in the meter shell. A touch key (3) is arranged at a position close to the inner surface of the meter shell (1) on the electronic measurement circuit board (2), is electrically connected with the electronic measurement circuit board (2), and is used for inducing human body capacitance to generate a trigger signal and further control the work of a measurement circuit in the electronic measurement circuit board (2). Compared with the prior art, human body touch is taken as a control signal to trigger a control switch; the touch key which is the control switch of the electric energy meter is not exposed from the meter shell, so that the electric energy meter has ideal waterproof and dustproof effects, and can be ensured to stably and reliably run for a long time; and moreover, the touch key is not actually mechanically pressed, and difficultly falls, so that the electric energy meter is long in service life and practical.

Description

technical field [0001] The invention relates to an electric energy meter, in particular to a touch-sensitive electric energy meter capable of switching on and off according to the capacitance signal of a human body. Background technique [0002] The electric energy meter is an instrument used to measure the special commodity "electricity", and has been widely used to measure the power consumption of households, business offices or factories. At present, it is generally an electronic energy meter, including a case and a sensor arranged in the case, an electronic measurement circuit board, and a display for displaying the measurement value, wherein the sensor is connected to the power line flowing through the load, and the electronic measurement circuit board The measurement circuit of the sensor passes the signal generated by the sensor and performs various calculations to obtain the consumed energy of the load. Since the electric energy meter needs to work 24 hours a day, a...

AI Technical Summary

Problems solved by technology

Since the electric energy meter needs to work 24 hours a day, and sometimes the installation environment of the electric energy meter is complex and harsh, this puts forward higher requirements for the reliability of the electric energy meter.

[0003] At present, the trigger switch of the electric energy meter adopts mechanical keys, which makes the performance of the electric energy meter unsatisfactory in terms of waterproof and dustproof, and it is difficult to adapt to various complex and harsh working environments, and the mechanical keys are used for a long time. It is easy to loosen and fall, and it is difficult to ensure the long-term, stable and reliable operation of the energy meter

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