Patent ID: 7616443
Filing Date: 2009-11-10
Classification: B60H,B60K,H05K

Abstract:
1. A cooling system for an electrical power unit of an electrically operated vehicle, said power unit comprising at least one power section and at least one control section, said cooling system comprising: a first cooling circuit arranged to primarily cool said at least one control section, said first cooling circuit comprising a first heat exchanger configured and arranged to feed coolant to said at least one control section at a first coolant temperature; a second cooling circuit arranged to primarily cool said at least one power section, said second cooling circuit comprising a second heat exchanger configured and arranged to feed coolant to said at least one power section at a second coolant temperature which is higher than said first coolant temperature; and at least one partition wall arranged between said at least one power section and said at least one control section; wherein said at least one power section and said at least one control section are arranged on a common printed circuit board in a common housing.