| 摘要 |
<p>The present invention relates to an oven having a ventilation cover to vary the ventilation rate of a cooking chamber. The oven comprises: a casing; the cooking chamber provided inside the casing to be opened by one side; a ventilation hole installed on one side of the cooking chamber to allow air to flow out of the cooking chamber; and a ventilation cover which is adjacently installed to the ventilation hole to be moved and opens and closes at least part of the ventilation hole to vary a ventilation rate. Therefore, the oven improves thermal efficiency in a cooking mode and smoothly discharges contaminated air in a washing mode by varying a ventilation rate in accordance with operation modes.</p> |
