Dustproof frequency converter heat dissipation air duct structure

Abstract

The invention relates to a dustproof type frequency converter heat dissipation air duct structure, a directional heat dissipation air duct is constructed through fan-blowing plate-ventilation opening, air flow uniformly covers the surface of a frequency converter through the blowing plate and takes away heat, and hot air flow is discharged from two sides of a shell after being dredged through filtering holes of a lower supporting plate, so that efficient heat circulation from top to bottom is formed; dust blocked by the filtering holes of the lower supporting plate can naturally fall into the lower dust collecting box to be collected in a centralized mode, and frequent dust removal of the frequency converter body is not needed. The structural stability and adaptability are prominent, a hinge mechanism ensures that the folding plate is not blocked in operation through rotating connection of a convex disc and a rotating rod, a torsional spring in a dust collection box can enable a check block to automatically reset so as to guarantee the reliability of repeated use, meanwhile, layered installation is achieved through an upper supporting plate and a lower supporting plate as a whole, and a driving component and a functional component are separated in order; interference of vibration on the frequency converter is avoided, independent maintenance and replacement of each component are facilitated, and the frequency converter can adapt to frequency converters of different power specifications and is wide in application scene.

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