| US 7,616,443 B2 | ||
| Cooling device for electrical power units of electrically operated vehicles | ||
| Alexander Walter, Augsburg (Germany) | ||
| Assigned to RENK Aktiengesellschaft, Augsburg (Germany) | ||
| Appl. No. 10/581,426 PCT Filed Dec. 05, 2003, PCT No. PCT/EP03/13797 § 371(c)(1), (2), (4) Date Aug. 16, 2006, PCT Pub. No. WO2005/055687, PCT Pub. Date Jun. 16, 2005. |
||
| Prior Publication US 2007/0051490 A1, Mar. 08, 2007 | ||
| Int. Cl. H05K 7/20 (2006.01); B60H 1/00 (2006.01); H01L 23/34 (2006.01); B60K 1/00 (2006.01); H02P 1/00 (2006.01) | ||
| U.S. Cl. 361—699 [165/41; 165/80.4; 165/80.5; 257/714; 257/252; 180/65.1; 318/139; 318/472] | 9 Claims |
| 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.
|