Single-phase multi-meter-position metal electric energy metering box and installation method thereof

By introducing a rainproof cover, a rear wall flow guiding structure, and a bottom plate drainage system into a single-phase multi-position metal energy metering box, the problems of rain protection, heat dissipation, and filter maintenance in outdoor environments are solved, achieving efficient rain protection, heat dissipation, and convenient maintenance.

CN122315480APending Publication Date: 2026-06-30HANGZHOU DEHONG ELECTRIC POWER TECH CO LTD
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Patent Information

Application Number
CN202610519611.X
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-04-20
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

Existing single-phase multi-position metal energy metering boxes have shortcomings in outdoor environments, including rain protection, heat dissipation, drainage, and filter maintenance. These problems include rainwater easily blowing into the rain cap and side wall vents, rainwater accumulating in the gaps between the rear wall and the wall causing corrosion, water accumulation inside the box, and water leakage in the sealing structure.

Method used

The innovative design incorporates a rainproof cover, a rear wall airflow structure, a bottom drainage system, and a door airflow channel, forming an annular ventilation chamber, a rear ventilation gap, a self-draining channel, and a convenient filter screen for maintenance. This enables top heat dissipation, rear heat dissipation, bottom drainage, and easy cleaning of the filter screen.

Benefits of technology

It improves rainproof performance, enhances heat dissipation efficiency, prevents water accumulation and corrosion, simplifies filter maintenance, eliminates the risk of water leakage, and improves the overall protection level.

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Abstract

The invention discloses a single-phase multi-meter-position metal electric energy metering box and an installation method thereof, and belongs to the technical field of electrical equipment. Comprising a box body, a rainproof cover plate detachably fixed at the top of the box body, a rear wall provided with an air vent, a detachable filter screen plate mounted at the air vent, a bottom plate provided with a drainage area and a hinged box door. The periphery of the rainproof cover plate is folded downwards to form an annular rainproof part, an annular ventilation cavity is formed between the rainproof cover plate and the top of the box body, and top ventilation and rainproof are achieved. The ventilation opening in the rear wall faces the wall body and is located in the projection range of the annular rain shielding part. The rear wall is stamped to form a flow guide structure protruding outwards, a flow guide groove inclining downwards is formed between every two adjacent protrusions, and a back ventilation gap is formed between the flow guide groove and the wall body. The bottom plate drainage area is provided with a water collecting groove, a drainage hole and a water retaining cap. The box door is provided with a sealing strip and a diversion trench. According to the outdoor metering box, through integrated innovation of the box body structure, the problems of rain prevention, heat dissipation, water drainage and filter screen maintenance of the outdoor metering box are systematically solved.
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