Shutter for protecting cabinet body

Abstract

The invention provides a shutter for protecting a cabinet body. The shutter comprises a shutter frame and leaf blades arranged in parallel. The shutter is characterized in that the leaf blades are arranged among filter screens; each leaf blade comprises a front leaf blade and a back leaf blade which are integrally formed; transition areas between the front leaf blades and the back leaf blades are in arc shapes; the leaf blades are in arc shapes and are divided into the front leaf blades and the back leaf blades by the top points C on the transition areas, the front leaf blades slope downward, and the back leaf blades slightly tilt upward; the leaf blades and the shutter frame are made of polyvinyl chloride resin. The level of the protection of the shutter satisfies the requirement of IP54, the outer part of the cabinet body is effectively prevented from drenching from top to bottom, spraying in horizontal direction and splashing from bottom to top, and the ventilation and the heat dissipation of parts in the cabinet cannot be effected.

Description

Technical field: [0001] The invention relates to a louver embedded in a cabinet to provide protection and ventilation functions, in particular to a louver whose protection level meets IP54 but does not affect the ventilation and heat dissipation of components in the cabinet. Background technique: [0002] The protection level of outdoor smart component cabinets and integrated control cabinets in power system smart substations, outdoor smart terminal cabinets in distribution networks, and off-board outdoor charging cabinets in electric vehicle charging stations should reach IP54. According to GB4208-2008 enclosure protection level (IP code), three conditions must be met at the same time to achieve IP54: ①Personnel protection - rigid test tools with a diameter of 1.0mm and a length of 100mm must not enter the enclosure, or maintain sufficient contact with dangerous parts inside the enclosure Clearance; ②Protection of equipment——A limited amount of dust is allowed to enter, but...

AI Technical Summary

Problems solved by technology

Polyurethane sponge has good filtering performance and can absorb solid dust or suspended particles entering the filter material. However, after the filter material accumulates dust, the air permeability will be reduced; polyurethane sponge has good adsorption performance and can prevent water flow into the filter material. , but after absorbing water, due to the surface tension of the liquid, the air permeability of the filter material will be greatly reduced; the concentration of total suspended particulate matter (TSP) in most cities across the country is 0.2mg / m 3 Above, there will inevitably be dust deposition in the sponge filter. After the filter material absorbs water, it will cause dust agglomeration and blockage of the mesh. If manual cleaning is not performed, the air permeability will not be restored.

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