Improved electricity meter

Abstract

The invention relates to an improved electricity meter comprising a lower casing (1), an upper casing (2) cooperating with the lower casing (1), a terminal base (3) arranged at the lower end of the lower casing (1), and an end cover (4) arranged above the terminal base (3) to cover the terminal base (3). Bonding surfaces of the upper casing (2) and the lower casing (1) extend outwardly to form bonding parts. The bonding part (14) of the lower casing (1) is wider than the bonding part (24) of the upper casing (2) slightly, so that the bonding part (24) of the upper casing (2) is placed and is buckled in a sealing manner. Compared with the prior art, the power provides the dual fixation effect; the sealing performance is good; the operator can check and repair the terminal base conveniently;the electric-shock-proof, dust-proof, and shedding-proof performances are good; and the safety is high.

Description

technical field [0001] The invention relates to the field of electric meters, in particular to an improved structure of the electric meter. Background technique [0002] As an instrument for measuring electricity consumption, the electric meter plays an important role in industrial production and life. But there are many deficiencies in the existing ammeter. [0003] For example, the "electric energy meter" disclosed in the utility model patent CN201540313U, the electric energy meter includes an upper case, a lower case, a terminal seat located at the lower end of the lower case, and an end button box cover for covering the terminal seat. In this structure, the upper shell and the lower shell are only connected by a conventional buckle structure. On the one hand, this structure is easy to cause dust on the internal chip due to the penetration of dust, which will cause inaccurate measurement of the electric energy meter over time. The buckle structure has the problem that t...

AI Technical Summary

Problems solved by technology

In this structure, the upper shell and the lower shell are only connected by a conventional buckle structure. On the one hand, this structure is easy to cause dust on the internal chip due to the penetration of dust, which will cause inaccurate measurement of the energy meter over time. On the other hand, conventional The buckle structure has the problem that the buckle is not firm, and the upper shell and the lower shell are easy to separate and fall off; at the same time, the terminal button box cover and the electric energy meter are connected by a lead seal. If you want to overhaul the terminal block, you need to cut Open the lead seal, and once the lead seal is cut, it cannot continue to be used, and a new lead seal line must be used to block it, which will cause a waste of resources

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