| 摘要 |
<p>There is provided an electric power conversion system. Bus bars 160 and 161 as heat-producing elements are provided on a circuit board assembly 150, and the circuit board assembly 150 is fixed to a DC-DC converter case 110. The DC-DC converter case 110 is integrated with an inverter 200, and a refrigerant channel 101 is formed therebetween. By bringing newly provided bus bar solder-fixed parts 160c, 160d, 161c, and 161d of those bus bars into contact with a refrigerant channel range 101A, heat generated at the bus bars 160 and 161 is released into a refrigerant via a metal board and the DC-DC converter case 110, respectively.</p> |
