| 摘要 |
PURPOSE:To make it possible to circulate air flow around a partition separating the same to thereby simplify the structure of the apparatus by connecting a cooling air flow passage of a fan for simultaneously cooling a high-frequency generator and a power source with a suction passage of the fan for sending combustion heat of a gas to a heating chamber. CONSTITUTION:A circulation fan motor 14 sucks up air from the external part and delivers heat generated in a burner into an oven. The motor 14 sucks up a part of air from a back plate and the residual part is taken from a cooling air flow of a magnetron 15 and a transformer 16. In this case, a frame on a cooling fan 17 out of frames around the circulation fan motor 14 is opened. On the other hand, when an electronic range part operates, both the magnetron 15 and the transformer 16 generate heat by power supply. Therefore, the cooling fan 17 rotates and lowers the heat of both parts. At this time, a part of the robbed heat rises up and flows out of an exhaust port 18 provided at the upper part of the main body. The residual part of the heat is absorbed by the circulation fan motor 14 and delivered to be box of the oven 3.
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