Power converting apparatus and capacitor cover thereof

A cylindrical capacitor cover of a power converting apparatus, the power converting apparatus being configured to convert alternating current power into direct current power or convert direct current power into alternating current power, the power converting apparatus comprising:

• a housing base having a first surface and a second surface;
• a main body on the first surface of the housing base, the main body comprising a plurality of electronic components including a cylindrical capacitor penetrating through the housing base;
• and
• an air duct through which cooling air flows on the second surface of the housing base,
• wherein a part of the capacitor is disposed in the air duct, wherein the capacitor cover is disposed on the housing base so as to cover the part of the capacitor disposed in the air duct, the capacitor cover comprising:
• an elastic material;
• a cylindrical cover body that is closed at the one end and open at another end;
• an inner surface defining an inner diameter approximately equal to an outer diameter of the capacitor such that the inner surface of the capacitor cover is in close contact with an outer surface of the capacitor when the capacitor cover is provided over the part of the capacitor;
• at least one groove, on the inner surface, extending in an axial direction of the capacitor cover;
• and
• an annular flange directly connected to and extending in a radially outward direction from the another end that is open,
• wherein the one end of the cover body that is closed being provided within the air duct, and the annular flange directly abuts and is secured to the first surface of the housing base.