Illinois Tool Works Inc.
Dual chamber wind tunnels for a welding-type power source

Abstract:

A wind tunnel for a welding-type power supply has a primary section and a secondary section that combine to produce a primary cooling chamber and a secondary cooling chamber. Baffling on the primary and secondary sections define primary and secondary airflow paths through the primary and secondary cooling chambers. Fans may be configured to drive air along the airflow paths, and electrical components situated in the cooling chambers may be cooled by air flowing along the airflow paths. A divider comprising engaged partitions of the primary section and secondary section may separate and/or isolate the primary cooling path from the secondary cooling path. The wind tunnel may comprise an insulating material to provide electrical isolation (creepage and clearance) between electrical components.