Ventilation hood type microwave oven

Abstract

The invention discloses a ventilation hood type microwave oven, comprising an oven body (1). A heating cavity (2) is arranged inside the oven body (1). A roasting tube (6) is installed on the top surface of the heating cavity (2). The oven body (1) is provided with a base tray (5). The base tray (5) is provided with a magnetron (3), a transformer (8) for regulating the pressure of the magnetron (3) and a thermostat (7). The oven body (1) is provided with a ventilation motor for cooling electrical components. The ventilation motor is started when the thermostat (7) reaches the critical temperature. The base tray (5) between the thermostat (7) and the transformer (8) has structures for delaying heat conduction. The microwave oven only needs one thermostat, thus not only satisfying the roasting or microwave behavior of the microwave oven and lowering the production cost, but also lengthening the time necessary for starting the ventilation motor in the microwave oven, enhancing the use feeling of the user and having great production practice significance.

Description

technical field [0001] The invention relates to the technical field of machinery, in particular to a ventilated hood microwave oven. Background technique [0002] A microwave oven is a device that generates microwaves from an electric current and irradiates the microwaves to the surface of the object to be heated in the cavity to heat the object. As everyone knows, microwave oven is a kind of modern cooking stove that heats food with microwave. The microwave it uses is a kind of electromagnetic wave. The energy of this electromagnetic wave is not only much greater than that of ordinary radio waves, but also has special characteristics. The microwave will reflect when it hits the metal, and the metal has no way to absorb or conduct it; the microwave can pass through insulation such as glass, ceramics, and plastics. Materials, but will not consume energy; and food containing water, not only can not pass through the microwave, but its energy will be absorbed. Based on these ...

AI Technical Summary

Problems solved by technology

[0008] For the above-mentioned microwave oven, when carrying out the microwave heating action, since the installation position of the transformer 8 is closer to the thermostat, it is possible to transfer the temperature in a shorter time (for example, 15 minutes less than the usual longest cooking time of the user) so that The temperature around the thermostat reaches a critical temperature, which triggers the ventilation motor to start, causing the microwave oven to make a whirring ventilation sound, making the user mistakenly believe that there is an unknown fault in the microwave oven, so they contact the microwave oven manufacturer for repairs, which seriously affects the user's understanding of the microwave oven product. Use experience, and unnecessarily increase the after-sales service burden of microwave oven manufacturers

[0009] In addition, the above-mentioned ventilated hood-type microwave oven with barbecue function needs to be equipped with two thermostats with different critical temperatures to monitor the temperature of the transformer and the barbecue tube respectively, which increases the production cost of the microwave oven.

Images