Small-sized microwave oven with precession rotating disc

Abstract

The invention discloses a small-sized microwave oven with a precession rotating disc. The small-sized microwave oven with the precession rotating disc adopts one to two radiation arrays to be arrangedbehind or above a heating cavity of the small-sized microwave oven with the precession rotating disc to stimulate a higher-order-mode TEn0 mode (n is an integer, and is greater than or equal to 2) asmuch as possible so as to form standing waves in the heating cavity. The small-sized microwave oven comprises the heating cavity, at least one radiation array and the rotating disc located at the bottom of the heating cavity, the at least one radiation array each comprises at least two rows of radiators along the Z axis, and the radiation arrays radiate microwave energy to the heating cavity through a floor, the rotating disc rotates along the central axis in the perpendicular direction and proceed around the central line in the perpendicular direction of the heating cavity simultaneously. Compared with multiple resonance modes under which in a traditional microwave oven, microwave sources simultaneously stimulate respective energy in the heating cavity through waveguide and coupling holes so that control is difficult, the field distribution of the working mode of the small-sized microwave oven is determined and can be controlled; in order to further improve the heating uniformity, inventors use the rotating disc which can transversely and horizontally move or can proceed around the perpendicular axis of the heating cavity; according to the small-sized microwave oven with the precession rotating disc, the heating uniformity of the small-sized microwave oven with the precession rotating disc in a three-dimensional space is improved by controlling the microwave mode in a hollowcavity of the small-sized microwave oven with the precession rotating disc; and the small-sized microwave oven can be used for heating various materials or accelerating the speed of chemical reaction.

Description

technical field [0001] The present invention relates to microwave ovens. Specifically, it relates to a microwave oven for heating materials uniformly and efficiently using a high-order mode. Background technique [0002] Microwave energy can be used in place of various conventional heating methods. Microwave ovens use microwave energy to heat various foods and materials, and in the field of microwave chemistry, microwave energy is used to speed up various chemical reactions. Microwave energy is also used in the production of various materials such as nanomaterials and synthetic diamonds. [0003] In the traditional heating process, heat is conducted from the outside to the inside of the heated object, which belongs to surface heating, resulting in uneven temperature inside and outside the heated object. In microwave energy heating, microwaves are heated by the action of an electric field, causing the damped vibration of polar molecules to generate heat, which belongs to b...

AI Technical Summary

Problems solved by technology

At the frequency of the working microwave, for a microwave feeder, after selecting its position, shape, and polarization direction, it is very difficult to determine the excitation intensity of several to dozens of modes in the heating cavity. , it is also extremely complicated in actual measurement

However, a large microwave oven needs to use multiple magnetrons as microwave sources, so the number of corresponding microwave feeders is also multiple, and the complexity of microwave oven heating is beyond people's imagination.

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