Patent ID: 6672381
Filing Date: 2004-01-06
Classification: F25B,H01L,H05K

Abstract:
A multi-load thermal regulating system for maintaining individual temperatures of a plurality of heat generating components within a predetermined temperature range, said thermal regulating system comprising:a plurality of evaporators, each of said evaporators being thermally attachable to a respective heat generating component, said plurality of evaporators being connected to each other in a serial arrangement; a plurality of supplemental heaters, each of said supplemental heaters operable to supply supplemental heat to respective ones of said heat generating components; a refrigerant line for conducting refrigerant through said plurality of evaporators; a variable capacity compressor connected to said refrigerant line and operable to control the mass flow rate of said refrigerant through said refrigerant line; a thermostatic expansion valve connected to said refrigerant line and configured to be manipulated by a superheat sensor, wherein said thermostatic expansion valve is operable to control the superheat of said refrigerant between said thermostatic expansion valve and said superheat sensor; and a proportional, integral, derivative controller configured to transmit signals to said variable capacity compressor to vary the mass flow rate of said refrigerant in response to a plurality of sensed temperature measurements measured by a plurality of component temperature sensors.