| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To keep a substantially unchanged thermal balance in a package regardless of the presence or absence of a transformer even if the transformer is added for using an engine system under an AC source different from the assumed voltage of an electric apparatus. <P>SOLUTION: The electric apparatus for driving an engine and the engine system is stored in the package 1. When the transformer 20 with the AC source used as a primary side and the assumed voltage of the electric apparatus for driving the engine system used as a secondary side is stored in the package, a suction port, an exhaust port and a ventilation fan for cooling the transformer are arranged in a ventilation path independent from the other apparatus. <P>COPYRIGHT: (C)2011,JPO&INPIT</p> |
