Modularized electric power meter and addressing method thereof

Abstract

The invention provides a modularized electric power meter and an addressing method thereof. The modularized electric power meter includes an instrument housing (8) and a plurality of expansion modules (9). Each expansion module (9) includes a module body (1). The front end of one side of each module body (1) is provided with a clip (3) while the rear end is provided with a slot (2). When the module bodies (1) are in cascading connection, the clip (3) of the module body (1) of a rear level is inserted into the slot (2) of the module body (1) of a front level. Each expansion module (9) is therein equipped with an expansion circuit module. The instrument housing (8) is therein equipped with a main circuit module. The expansion circuit modules and the main circuit module are in plug connection. According to the invention, convenient expansion is achieved and automatic addressing of the expansion modules is realized.

Description

technical field [0001] The invention relates to an electric power meter, in particular to a power meter with modularized function expansion and an addressing method of the power meter, belonging to the technical field of electric power instruments. Background technique [0002] At present, there are many ways to expand the functions of power meters. For example, according to the needs of customers, the manufacturer directly installs the functions in the meters. The module is externally connected to the back of the instrument. This method has the problem that the number of modules is limited due to the unreasonable connection method. At the same time, due to the complex structure, it needs to be fixed by screws, which brings inconvenience to the user in the selection of instrument functions and the installation of the instrument; In addition, the conventional expansion method requires manual addressing of each functional module after function expansion, resulting in limited u...

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Problems solved by technology

[0002] At present, there are many ways to expand the functions of power meters. For example, according to the needs of customers, the manufacturer directly installs the functions in the meters. The module is externally connected to the back of the instrument. This method has the problem that the number of modules is limited due to the unreasonable connection method. At the same time, due to the complex structure, it needs to be fixed by screws, which brings inconvenience to the user in the selection of instrument functions and the installation of the instrument; In addition, the conventional expansion method requires manual addressing of each functional module after function expansion, resulting in limited use, and untrained operators cannot directly and quickly expand the instrument function according to the needs of the enterprise

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