Electric energy meter externally installed circuit breaker terminal interface

Abstract

The invention belongs to the technical field of electric energy meters and provides an electric energy meter externally installed circuit breaker terminal interface. The interface comprising a socketinstalled at the upper end button box of an electric energy meter, a plug matched with the socket, and an interface hole site arranged at a corresponding position of the protection cover of the electric energy meter; the socket comprises a pin seat and pins; the upper end button box of the electric energy meter is provided with a pin seat support; the pin seat is clamped with the pin seat support;and the interface hole site of the protection cover is a U-shaped opening. During installation, the pin seat is inserted into the pin seat support from top to bottom to be fixed; the protection coverwith the U-shaped opening directly covers the pin seat support from above; and therefore, the installation of the interface is quite convenient and easy.

Description

technical field [0001] The invention relates to a terminal interface of an external circuit breaker of an electric energy meter, belonging to the technical field of electric energy meters. Background technique [0002] At present, the built-in switch of electric energy meter charge control is only suitable for breaking control between 5A-60A, but the built-in switch with high current exceeding 60A can no longer bear high load, so the external switch of electric energy meter charge control can only be used. In the past, in the actual application process of the external switch of electric energy meter fee control, there are still some shortcomings in its function. Although the arrears can automatically cut off the power, after recharging the electricity fee, it needs to be closed manually, so it increases the power supply enterprise. workload. For this reason, automatic reclosing circuit breakers are manufactured accordingly. [0003] The mechanism of the control part of the...

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Problems solved by technology

[0004] However, in the prior art, the wiring on the terminal block is led out, combined with the automatic reclosing circuit breaker, the function of opening and closing the circuit breaker can be controlled. This structure requires manual wiring, and it is easy to make mistakes. The terminal block occupies a large space on the meter and is modularized. The integration level is low, so if the terminal block is cancelled, a special interface for the external switch must be designed on the energy meter. At present, the interface position of the protective cover of the energy meter on the market is a rectangular opening. When installing, first hang the interface socket (needle seat) on the On the bracket of the upper button box (the needle seat is easy to shake), then solder the pins to the circuit board, and then install the protective cover of the electric energy meter. At this time, the needle seat needs to be inserted into the rectangular opening of the protective cover. Moreover, because the installation cannot avoid the collision between the needle holder and the protective cover, it is likely that the welding and fixing of the stitches cannot withstand the force caused by the collision. Therefore, during the installation process, the needle holder is easily misplaced, and the welded pins are also easy to disengage.

Another important point is that the waterproof performance is also very poor.

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