Combination compact microwave oven and ventilator system
AssigneeSharp Kabushiki Kaisha
InventorIkuyasu Kaminaka
Life of this patent
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Abstract
A combination compact microwave oven incorporates ventilator and cooling systems into a unitized structure which may typically be installed on a wall above a conventional electric or gas range. A ventilator assembly including centrifugal fans at the top backward edge is rotatably adjustable for different installations. The space under an outer housing is utilized as an exhaust duct containing a filter means through which exhaust gas can be discharged if there is no external vent available. Air is taken into the cooling system from above through an opening where relatively cool air is expected to be available and is passed through separate air flow channels for efficient cooling of individual areas and components.
Claims9
A compact microwave oven incorporating ventilator and cooling systems into a unitized structure, comprising
- a housing containing therein a cooking chamber and a compartment having a high voltage transformer disposed therein,
- a cooling air intake means for introducing cooling air from outside through an intake opening directly into said compartment, said intake opening being provided to said housing at an elevated frontal position thereof,
- a plurality of substantially independent air passages establishing separate airflow routes out of said compartment,
- a cooling system fan adapted to cause cooling air to enter said compartment through said air intake means and to leave said compartment through said air passages, said cooling system fan forming a portion of the boundary of said compartment and being disposed proximately in front of said high voltage transformer whereby said transformer is directly exposed to incoming cooling air, and
- a ventilator assembly with a ventilator motor and centrifugal fans sandwichingly attached to both sides of said ventilator motor, said ventilator assembly being rotatably mounted at an elevated and backward part in said housing such that exhaust gas can be directed in an upward or backward direction by adjustingly rotating said ventilator assembly.
Dependencies are inferred from the claim text.