Patent ID: 8233278
Filing Date: 2012-07-31
Classification: H05K

Abstract:
1. A cabinet for a solar power inverter, comprising: a hood positioned at a highest point of the cabinet, the hood having an array of louvers near an air inlet and a gutter below the louvers to carry fluid that enters the air inlet out of the hood, the hood having a hood air outlet; an intake chamber below the hood and connected to the hood air outlet, the intake chamber containing an air filter, an air pressurizer, and an air plenum, the air pressurizer creating air pressure in intake chamber to cause air to enter the intake chamber through the hood and pass through the air filter and into the air plenum; a diversion chamber connected to the air plenum and having a gate between the plenum and a first diversion port and a second diversion port; a first chamber connected to the air plenum at the first diversion port, the first chamber containing DC capacitors, control electronics, and switching transistors, the first chamber having a first chamber air outlet; a second chamber below the first chamber connected to the first chamber air outlet, the second chamber containing switch gear and support electronics for the solar power inverter, the second chamber having a first cabinet air outlet leading out of the cabinet near a base of the cabinet; a third chamber connected to the air plenum at the second diversion port, the third chamber containing a heat sink for the switching transistors and having a third chamber air outlet; and a fourth chamber below the third chamber connected to the third chamber air outlet, the fourth chamber containing a transformer and an inductor, and having a second cabinet air outlet leading out of the cabinet, wherein the first chamber, the second chamber, the third chamber and the fourth chamber comprise grounded metal walls with openings that permit air to flow between the first and second chambers and between the third and fourth chambers.