Micro-wave oven

Abstract

The invention provides a microwave oven. The microwave oven comprises a shell, cavity plates, an oven door and a fan, wherein the shell is provided with an air inlet and a gas outlet; the cavity plates and the shell form a heating cavity body with an opening at the front end; one lateral plate of the cavity plates is provided with a cavity body gas outlet; the oven door is hinged with the shell, and forms a clearance with the shell; when the fan operates, partial air enters the heating cavity body from the clearance between the oven door and the shell, and then enters the fan from the cavity body gas outlet; the other part of air enters the fan from the air inlet of the shell, and air blown out by the fan passes through an electronic element and is exhausted from the gas outlet. The cavity plate of the microwave oven provided by the invention is only provided with the cavity body gas outlet, under the effect of the fan, intake air of the cavity body enters from the outside, and steam generated by heating food in the cavity body is exhausted from the cavity body gas outlet; meanwhile, air with steam, which is exhausted from the cavity body gas outlet, is guided to the fan, and is blown to the electronic element together with air sucked from the air inlet to be subjected to temperature reduction.

Description

technical field [0001] The invention relates to the field of household appliances, in particular to a microwave oven. Background technique [0002] At present, microwave ovens on the market are mainly used for cooking ingredients or heating food. When ingredients or food are placed in the heating cavity 501 and heated, water vapor will be generated, which will cause damage to the inner wall of the microwave oven body. In addition, the electrical components 8 themselves will also generate heat, which affects the service efficiency and life of the electrical components 8, so in the existing microwave oven structure, such as figure 1 As shown, the cavity air inlet 502 is arranged on the right side plate of the cavity plate 5 in the heating cavity 501 and is close to the control panel, and the left side plate of the cavity plate 5 is provided with a cavity exhaust port 503. The electrical room on the right side is provided with a fan 7 near the rear panel 3, and the fan 7 blows...

AI Technical Summary

Problems solved by technology

[0002] At present, microwave ovens on the market are mainly used for cooking ingredients or heating food. When ingredients or food are placed in the heating cavity 501 and heated, water vapor will be generated, which will cause damage to the inner wall of the microwave oven body. In addition, the electrical components 8 themselves will also generate heat, which affects the service efficiency and life of the electrical components 8, so in the existing microwave oven structure, such as figure 1 As shown, the cavity air inlet 502 is arranged on the right side plate of the cavity plate 5 in the heating cavity 501 and is close to the control panel, and the left side plate of the cavity plate 5 is provided with a cavity exhaust port 503. The electrical room on the right side is provided with a fan 7 near the rear panel 3, and the fan 7 blows the external cold wind sucked from the air inlet 301 on the rear panel 3 to the electrical components 8 in the electrical room, and after cooling the electrical components 8, a part of the wind continues Enter the heating cavity 501 through the cavity air inlet 502, and finally exit the heating cavity 501 through the cavity exhaust port 503, and discharge out of the microwave oven through the exhaust port 201 on the outer cover 1 or the bottom plate, and the external cold wind can take away the heating Water vapor and heat in cavity 501

[0003] In the prior art, the wind that enters the heating chamber 501 is blown into the heating chamber 501 by the fan 7, and after the wind blown by the fan 7 cools the electrical parts, it is blown by the air inlet 502 of the chamber on the right side of the chamber plate 5. Enter the heating cavity 501, and be discharged by the cavity exhaust port 503 on the left side of the cavity plate, the water vapor in the heating cavity 501 can be taken away when exhausting, the larger the ventilation area of ​​the air inlet, the greater the air intake The more the water vapor is discharged, the faster the water vapor will be discharged, but the heat in the heating cavity 501 will be dissipated faster while increasing the air intake, which will affect the output power and thermal efficiency of the microwave oven; the ventilation of the air inlet The smaller the area, the less air volume entering the heating chamber 501, which can reduce the heat loss in the heating chamber 501, but at the same time it will reduce the heat dissipation effect of the wind on the electrical components 8, and will cause a large amount of water vapor to flow on the inner wall of the heating chamber 501. condensed into water

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