Patent ID: 7817419
Filing Date: 2010-10-19
Classification: H02J

Abstract:
1. A solar inverter assembly, comprising: a first housing part forming a heat sink, said first housing part having a first air inlet opening, a first air outlet opening, and a first air channel connecting said first air inlet opening to said first air outlet opening formed therein and disposed to enable air to flow by natural convection through said first air channel; a second housing part configured for holding electronic components of the solar inverter, said second housing part having a second air inlet opening, a second air outlet opening, and a second air channel connecting said second air inlet opening to the second air outlet opening formed therein and disposed to enable air to flow by natural convection through said second air channel; a plurality of electronic components of the solar inverter including at least one first electronic component having a quality making it substantially insensitive to dust and at least one second electronic component having a quality making it substantially sensitive to dust; said at least one first electronic component being mounted in said second housing part in direct thermal contact with said first housing part, and disposed in said second air channel in said second housing part; and said at least one second electronic component being mounted in said second housing part in thermal contact with said first housing part and disposed in a dust-tight zone separated from said second air channel by a separating wall; wherein said at least one second electronic component that is substantially sensitive to dust is one of a subset of the plurality of electronic components; wherein the subset of the plurality of electronic components is part of an assembly that is encapsulated in a dust-tight enclosure in said second housing part; and wherein said dust-tight enclosure in said second housing part is mounted to a wall of said first housing part, and at least one of the subset of said plurality of electronic components disposed in said dust-tight enclosure is mounted in direct thermal contact on said wall of said first housing part.