Electricity stealing-prevention safety anti-theft metering box

Abstract

The invention discloses an electricity stealing-prevention safety anti-theft metering box. The electricity stealing-prevention safety anti-theft metering box comprises a box body and a box door, wherein a fixed plate is arranged in the box door, at least six fixed rails are arranged at a front side surface of the fixed plate, current metering units are arranged at front sides of the fixed rails and are closely contacted and fixed with the fixed rails by fixed pieces, reed relays are arranged at top ends of the current metering units, an ampere meter is arranged at the bottom of each reed relay, a relay is arranged at one side of the ampere meter, tongue pieces are arranged at two sides of the reed relay, the reed relay is electrically connected with the relay by the tongue piece, and one side of the relay is closely contacted and fixed with the ampere meter. The electricity stealing-prevention safety anti-theft metering box is reasonable in structural design; and by the ampere meters,the relays and the reed relays and by division and cooperation of labor, and the purpose that an electricity stealer utilizes a superstrong magnet to damage the ampere meter so as to steal electricityis thoroughly prevented.

Description

technical field [0001] The invention relates to the field of electrical equipment, in particular to a safe and anti-theft metering box for preventing electricity theft. Background technique [0002] The metering box is a common device used to protect the ammeter, and it can facilitate the installation of the ammeter, and the ammeter refers to the instrument used to measure the current in the AC and DC circuits. In the circuit diagram, the symbol for the ammeter is "circle A". The current value is in "A" or "A" as the standard unit. The ammeter is made according to the action of the current-carrying conductor in the magnetic field by the magnetic field force. There is a permanent magnet inside the ammeter, which generates a magnetic field between the poles. There is a coil in the magnetic field. There is a hairspring spring at both ends of the coil. Each spring is connected to a terminal of the ammeter. The spring and the coil are connected by a rotating shaft. On the fron...

AI Technical Summary

Problems solved by technology

[0003] However, the existing metering box has poor protection, and it is easy for electricity thieves to use super-strong permanent magnets to affect the normal operation of the ammeter and steal electricity.

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