| 摘要 |
PROBLEM TO BE SOLVED: To make a heat radiating performance uniform regardless of position in an electrical device having a heat-generating electric element mounted therein. SOLUTION: An electrical device 10 comprises a cooling jacket 14 and an electric element 12. The cooling jacket 14 includes at least one main flow passage 22 for guiding a cooling medium in a first direction, a cooling medium inlet passage disposed upstream of the main passage 22, a plurality of upstream communication passages 38 for communication between connection regions of the main passage 22 to the inlet passage and the main passage 22 and the inlet passage, a cooling medium exhaust passage disposed downstream of the main passage 22, and a plurality of downstream communication passages 40 for communication between connection regions of the main passage 22 to the exhaust passage and the main passage 22 and the exhaust passage. The electric element 12 is provided on a ceiling wall of the main flow passage 22 of the cooling jacket 14. COPYRIGHT: (C)2006,JPO&NCIPI
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