Patent ID: 6965101

Claim:
A cooling structure for an oven door of a microwave oven usable as a pizza oven, the microwave oven including an oven body defined with a cooking chamber and an electric device installation chamber partitioned by partition wall, a cooling fan installed in the electric device installation chamber, a pizza cooking chamber defined in the cooking chamber at one side of the cooking chamber, heaters mounted in the interior of the pizza cooking chamber, respectively, and the oven door mounted to the oven body at the front side of the pizza cooking chamber to open/close the pizza cooking chamber, the cooling structure comprising: a plurality of first air inlet perforations formed through a portion of the partition wall contacting one side section of the oven door in a closed state of the pizza cooking chamber; a plurality of second air inlet perforations formed through the side section of the oven door, the second air inlet perforations having the same shape as the first air inlet perforations such that the second air inlet perforations are aligned with the first air inlet perforations in the closed state of the pizza cooking chamber; and a plurality of uniformly-spaced air outlet perforations formed through the other side and top sections of the oven door to outwardly exhaust the air introduced into the interior of the oven door.