Electric meter

Abstract

The invention relates to an electric meter comprising a base and a module box provided on the base, wherein the upper end of the base is formed with a receiving space for receiving the module box, theupper end of the base is covered with a cover at a position corresponding to the receiving space, the module box is located between the base and the cover, a first chamber is provided in the module box, a water outlet for water to flow out of the first chamber is provided on the bottom surface of the first chamber, the side wall of the first chamber is provided with a terminal for connecting an external antenna, and the cover is provided at a position corresponding to the terminal with a through hole for the terminal to pass through. In this way, when an external antenna needs to be installed, the external antenna can be connected to the terminal in the opening without opening the cover to realize the connection of the external antenna, which makes the connection of the external antenna more convenient and quicker.

Description

technical field [0001] The invention relates to the technical field of electric meters, in particular to an electric meter with a communication module. Background technique [0002] An electric meter is an instrument used to measure electric energy, also known as an electric meter, a fire meter, and a kilowatt-hour meter. It is more and more common to use in industrial production and life. [0003] The current electric meter is usually provided with a carrier module, specifically, the electric meter is provided with a housing cavity for installing the carrier module, the carrier module is provided with a module box, and the wall plate of the module box of the module is provided with an opening for installing the antenna , to facilitate the subsequent installation of the antenna. [0004] For example, the Chinese utility model patent "A Single-phase Smart Electric Energy Meter", whose patent number is CN201720745380.0 and authorized announcement number is CN207067205U, the ...

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Problems solved by technology

[0004] For example, the Chinese utility model patent "A Single-phase Smart Electric Energy Meter", whose patent number is CN201720745380.0 and authorized announcement number is CN207067205U, the single-phase smart electric energy meter includes a bottom box and a PCBA and G3-PLC communication installed in it Module, the bottom box is equipped with a module box and an antenna installation component, the module box is connected with the PCBA, the side wall of the bottom box corresponds to the module box and there is a gap for installing the antenna component, the module box is used to install the GPRS communication module, the antenna The installation member is used to position the built-in antenna or the connection line of the external antenna connector. The above-mentioned electric energy meter realizes the subsequent installation of the external antenna, but in the process of long-term use, water may pass through the side wall of the bottom box The gap of the gap enters the module box and damages the electrical components of the communication module, which may cause the communication failure of the meter, affect the meter reading and reduce the service life of the meter; in addition, when installing, it is necessary to open the cover at the module to realize The installation of external antenna increases the inconvenience of installation

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