Patent ID: 6170562
Filing Date: 2001-01-09
Classification: F24F,F28D,H05K,Y02B

Abstract:
A device for the exchange of thermal energy between the interior of a housing, more particularly a housing for a telecommunication apparatus, and the environment of said housing, said device comprising:a heat exchanger block with at least two fluid duct systems that are separated from each other;a first one of said at least two fluid duct systems communicating with said interior of said housing;a second one of said at least two fluids duct systems communicating with said environment of said housing;said first fluid duct system having at least one fluid pump configured to convey a first working fluid in said first fluid duct system;said second fluid duct system having at least one fluid pump configured to convey a second working fluid in said second fluid duct system; anda controller mounted in said interior of said housing or in said first fluid duct and configured to control a speed of said fluid pumps of said first and second fluid duct systems based on an internal temperature in said interior of said housing such that said fluid pump of said first fluid duct system runs permanently with a speed variable between a minimum speed and a maximum speed while said fluid pump of said second fluid duct system is switched on at a predetermined minimum value of said internal temperature and reaches a highest speed at a predetermined maximum value of said internal temperature.