An anti-condensation ventilation device for a ring network cabinet

Abstract

The invention discloses an anti-condensation ventilation device for a ring main unit, and relates to the technical field of the ventilation devices for the ring main units. The device comprises a supporting seat and a ring main unit body, wherein a first cover plate and a second cover plate are arranged in a ventilation window of an upper plate of the supporting seat; a supporting plate is arranged on one side of the ring main unit body; the ventilation device is arranged above the supporting plate; the ventilation device comprises a motor, a cam, a movable rod, a contact plate and a compression spring; a motor output shaft is connected to the cam; the movable rod is arranged below the cam; the contact plate is arranged between the movable rod and a rotary plate; the contact plate is connected to the upper end of the movable rod; the lower end of the movable rod is hinged to one end, close to the second cover plate, of the first cover plate; and the compression spring is arranged between the contact plate and the supporting plate. According to the anti-condensation ventilation device, hot air in a cable trench can be prevented from entering the ring main unit body to form a condensation phenomenon, a problem that a switch cannot act correctly due to rusting of a circuit breaker and a load switch in the ring main unit body is avoided, the power supply reliability is improved, alarge amount of manpower and material resources do not need to be consumed for erasing condensation of the ring main unit, and potential safety hazards are reduced.

Description

technical field [0001] The invention relates to the technical field of ventilation devices for ring network cabinets, in particular to an anti-condensation ventilation device for ring network cabinets. Background technique [0002] The ring network cabinet, that is, the ring network power supply unit RMU, is an emerging and rapidly developing smart grid power distribution equipment in recent years; the ring network cabinet includes a support seat above the cable trench and a cabinet above the support seat , the cabinet body is connected with the support base, the cable is coiled in the cable trench, and enters the ring network cabinet through the support base. [0003] When used in winter, the temperature difference between day and night is large. Since the cable trench is in a sealed space, the air in the cable trench is higher than the air in the ring network cabinet and the outside air. The hot air in the cable trench cannot circulate. It can enter the cabinet of the rin...

AI Technical Summary

Problems solved by technology

[0005] The present invention aims at the above-mentioned deficiencies existing in the prior art, and provides an anti-condensation ventilation device for the ring main unit. Hot air can only flow out of the cable trench from the sealing ring, causing the hot air in the cable trench to enter the cabinet, so as to realize timely ventilation inside the cable trench, reduce the temperature in the cable trench, and avoid hot air in the cable trench It enters the cabinet to form condensation phenomenon, thereby avoiding the corrosion of automatic mechanisms such as circuit breakers and load switches in the cabinet, which leads to the problem that the switch cannot operate correctly, improves the reliability of power supply, and does not need to spend a lot of manpower and material resources on the ring network cabinet. The erasure of dew reduces the potential safety hazard

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