Compact expandable modular ring main unit

Abstract

This utility model relates to the field of ring main unit technology and discloses a compact, expandable, modular ring main unit, including a main cabinet. The main cabinet includes a cabinet body, and a reinforcing mechanism is provided on the outside of the cabinet body. The reinforcing mechanism includes aluminum alloy reinforcing frames fixedly connected to the four corners of the cabinet body. Two first reinforcing ribs are fixedly connected between two aluminum alloy reinforcing frames on the same side in a symmetrical front-to-back arrangement. This utility model increases the heat dissipation channel by setting ventilation slots at the top and bottom of the cabinet body. Utilizing the principle of hot air rising, a natural convection heat dissipation channel is formed. At the same time, a cooling fan is installed at the upper ventilation slot. When passive heat dissipation cannot effectively reduce the temperature inside the cabinet, the cooling fan can force airflow to accelerate the dissipation of heat inside the cabinet. In addition, the cabinet frame and cabinet panels are made of aluminum alloy, which has better thermal conductivity than ordinary steel, helping to quickly conduct internal heat to the outside.

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