| 摘要 |
<p>PURPOSE:To improve the cooling performance of a transformer by simple constitution without scaling up an air blower and installing a ventilating duct by forming a ventilating hole to a section on the side opposite to the air blower in the lower section of the transformer in a mounting plate. CONSTITUTION:A ventilating hole 15 is formed to a section on the yoke 7a side of the reverse side to an air blower 12 in the lower section of a transformer 6 in a mounting plate 4. When an electronic oven is operated, high-frequency currents are made to flow through the transformer 6, high-tension voltage is induced in a secondary side winding 10 and a magnetron 11 is driven. The outside air is sucked from a suction port 3 by the drive of an air blower 12 at the same time as operation, and blown against the transformer, etc. A section on the reverse side to the air blower 12 of the transformer 6 is changed into negative pressure, air is sucked through the ventilating hole 15, and air reaches even to the section on the reverse side to the air blower.</p> |
