| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide: a warpage prevention structure of an aluminum die-cast molding capable of reducing a manufacturing time and reducing manufacturing cost by preventing warpage after die-casting an aluminum die-cast product to eliminate a warpage correction process; and a power converter using the same. <P>SOLUTION: When die-casting, for instance, a case body of this power converter using aluminum or an aluminum alloy, a warpage prevention reinforcement part such as a rib part or a plate thickness reinforcement part is formed in a warpage occurrence-predicted part after die-casting. <P>COPYRIGHT: (C)2011,JPO&INPIT |
