Patent ID: 6182742
Filing Date: 2001-02-06
Classification: H05K

Abstract:
An electronic system cooling apparatus, comprising:at least two cooling units connected in parallel for supplying a cooling liquid to a liquid-cooled electronic system;each of said cooling units having a supply of cooling liquid and a pump for circulating the cooling liquid through a heat exchanger, a temperature sensor and a controller connected to the temperature sensor and the pump for controlling the pump and the temperature of the cooling liquid in accordance with the sensed temperature;wherein each one of said cooling units has a different said controller respectively connected to ones of said temperature sensor and said pump that correspond to said one cooling unit;wherein one of said cooling units is in a standby mode and the others of said cooling units are in an operating mode during normal operation; andwherein said controllers of each of said cooling units are connected together so that when a fault occurs in said cooling unit in the operation mode, said controller of said cooling unit in a standby mode takes over for said cooling unit in which the fault occurs without interruption of cooling of the electronic cooling system.