Patent ID: 7061763
Filing Date: 2006-06-13
Classification: F25B,G05D,H05K

Abstract:
1. A method of cooling a cabinet containing heat dissipating electronic components (PBA), comprising the steps of: circulating cooling medium in a closed fluid system to absorb heat in an evaporator in the cabinet and to transfer the absorbed heat from the cabinet and to emit said heat outside the cabinet in a condenser/heat exchanger, detecting the evaporator temperature (T detecting the ambient temperature (T controlling a forced circulation of the cooling medium based on the detected heat load and conditions of heat transfer; controlling the flow of the cooling medium back to the evaporator in the cabinet based on the detected heat load and conditions of heat transfer; and controlling the activation/deactivation of a vapor compression cycle based on the detected heat load and conditions of heat transfer; thereby allowing a controlled shifting between cooling of the cabinet in different cooling modes optimized for different heat load and heat transfer conditions.