Microwave oven

Abstract

The present invention provides a microwave oven, which comprises: a hollow cavity with an opening at one end, wherein the wall of the cavity is further provided with a hot gas inlet and a gas discharge port, and the hot gas inlet and the gas discharge port are arranged at intervals; a door body positioned on the outer side of the cavity and arranged at the opening position of the cavity; a microwave source positioned on the outer side of the cavity and arranged on the cavity, wherein the microwave source is near the hot gas inlet; and a fan positioned on the outer side of the cavity and matched to the microwave source, wherein the fan is near the hot gas inlet, and can guide the heat of the microwave source to the internal of the cavity from the hot gas inlet. According to the present invention, the microwave oven has characteristics of simple structure and small volume, the heat of the microwave source is guided into the internal of the cavity from the hot gas inlet by the fan, the generated heat of the internal of the microwave source is completely utilized, and the energy efficiency utilization rate of the microwave oven is improved.

Description

technical field [0001] The invention relates to the field of household appliances, and more specifically, to a microwave oven. Background technique [0002] With the enhancement of people's awareness of environmental protection, energy-saving, environmentally friendly, clean and fast electrical appliances such as microwave ovens are more and more favored by us. Such as figure 1 As shown, a traditional microwave oven mainly includes a cavity 1', an oven door 2', a control panel 12', a magnetron 3', a waveguide 4', a transformer 5', a high-voltage capacitor 6', and a heat dissipation component 7', etc., such as figure 1 As shown, the transformer outputs a voltage of about 2KV, through the high-voltage capacitor and its internal high-voltage diode for half-wave voltage doubler rectification, a pulse high voltage of about 4K volts is generated between the anode and cathode of the magnetron, and the magnetron outputs microwaves of 2450MHz , The polar molecules in the food oscil...

AI Technical Summary

Problems solved by technology

[0003] Traditional microwave ovens, magnetrons, transformers and other main components that require heat dissipation are scattered in structure, and larger fans and higher speeds are required to meet heat dissipation requirements. This is also the main source of noise when the microwave oven is running. Moreover, due to The size of the magnetron and transformer is large, which also results in a large volume of the whole machine, highlighting the bulkiness

[0004] With the advancement of technology, a new type of microwave oven with semiconductor as the microwave excitation source has appeared, but its energy efficiency is low, and it cannot meet the minimum standard of 56% energy efficiency stipulated by the state, resulting in a sluggish market prospect for the product.

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