KR19980036257A - Microwave Waveguide Structure - Google Patents

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a microwave oven, and more particularly, to a waveguide structure of a microwave oven that allows food to be cooked evenly by uniformizing the energy distribution of electromagnetic waves generated from the magnetron and discharged in the X direction of the cooking chamber to heat the food. .

The microwave waveguide structure is a microwave oven for heating and cooking food using electromagnetic waves generated from the magnetron (9), the plurality of openings (11) up and down on one side in the cooking chamber (1) of the microwave oven. It is characterized in that the food is evenly cooked by forming a uniform energy distribution of electromagnetic waves generated from the magnetron and discharged in the X direction of the cooking chamber during cooking.

Description

Microwave Waveguide Structure

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a microwave oven, and more particularly, to a waveguide structure of a microwave oven that allows food to be cooked evenly by uniformizing the energy distribution of electromagnetic waves generated from the magnetron and discharged in the X direction of the cooking chamber to heat the food. .

1 and 2, a conventional microwave oven includes a cooking chamber 1, which is a hexahedral space for cooking, a tray 3 installed in the cooking chamber 1 so that food is settled, and the tray ( 3) a microwave oven to generate electric waves for heating food by receiving power from a motor 5 disposed on the lower side of the tray 3 and a high voltage transformer (not shown) to generate power for rotating the 3). And a waveguide 15 formed to induce electromagnetic waves generated from the magnetron 9 to be discharged into the cooking chamber 1 through the opening 11. 11 is provided in the right side 1A of a cooking chamber.

The operation of the conventional microwave oven configured as described above will be described.

First, when the user seats the food on the tray 3 and turns on the cooking start button of a key operation part (not shown), electromagnetic waves are generated from the magnetron 9 and guided to the waveguide 15 to be discharged through the opening 11. At the same time, the motor 5 is rotated so that the tray 3 interlocked with the motor 5 rotates to cook.

On the other hand, the energy distribution of the electromagnetic wave discharged from the opening 11 has an energy difference of E1 between the maximum energy amount and the minimum energy amount, as shown in FIG. Burning or unripe problems emerged.

The present invention has been made to solve the above problems, an object of the present invention is to uniformly cook the energy distribution of the electromagnetic waves generated from the magnetron to be discharged in the X direction of the cooking chamber to heat the food to cook evenly. To provide a waveguide structure of a microwave oven.

In order to achieve the above object, the waveguide structure of the microwave oven according to the present invention is a microwave oven for heating and cooking food by using electromagnetic waves generated from the magnetron 9, on one side of the cooking chamber 1 of the microwave oven. By forming a plurality of openings (11) up and down in the cooker to uniformly distribute the energy of electromagnetic waves generated from the magnetron during cooking and discharged in the X direction of the cooking chamber, the food is evenly cooked.

1 is a schematic structural diagram of a microwave oven according to the prior art;

2 is a cross-sectional view taken along line AA ′ of FIG. 1;

3 is an energy distribution of electromagnetic waves discharged through an opening when cooking a microwave according to the prior art;

4 is a schematic structural diagram of a microwave oven according to an embodiment of the present invention;

5 is a cross-sectional view taken along line BB ′ of FIG. 4;

6A is an energy distribution diagram of electromagnetic waves discharged through a second opening when cooking a microwave according to one embodiment of the present invention;

6B is an energy distribution diagram of electromagnetic waves discharged through a first opening when cooking a microwave according to one embodiment of the present invention;

6C is an energy distribution diagram of electromagnetic waves that are discharged by being superimposed through the first and second openings when cooking a microwave oven according to an embodiment of the present invention;

Explanation of symbols on the main parts of the drawings

1: cooking chamber 1A: right side of the cooking chamber

9: magnetron 11: opening

11A: first opening 11B: second opening

15: waveguide

Hereinafter, an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

Figure 4 is a schematic structural diagram of a microwave oven according to an embodiment of the present invention, Figure 5 is a cross-sectional view taken along the line B-B 'of Figure 4, Figure 6A is cooking of a microwave oven according to an embodiment of the present invention Is an energy distribution diagram of electromagnetic waves discharged through a second opening, and FIG. 6B is an energy distribution diagram of electromagnetic waves discharged through a first opening during cooking of a microwave oven according to an embodiment of the present invention, and FIG. An energy distribution diagram of electromagnetic waves superimposed and discharged through the first and second openings when the microwave oven is cooked according to an embodiment of the present disclosure.

In the microwave waveguide structure according to the present invention, as shown in FIGS. 4 and 5, the first opening 11A and the second opening 11B are formed on the right side surface 1A of the cooking chamber at regular intervals up and down.

The first opening 11A is formed to protrude by a distance of λ / 4 from the right side 1A of the cooking chamber, and the second opening 11B is spaced at a lower end of the first opening 11A at a right side of the cooking chamber. It is formed on (1A).

Hereinafter, an operation on the opening of the microwave oven according to the present invention configured as described above will be described with reference to FIG. 6.

When the user seats the food on the tray 3 and turns on the cooking start button of the key control unit, electromagnetic waves are generated from the magnetron 9 and are guided to the waveguide 15 to allow the first opening 11A and the second opening 11B. Electromagnetic wave is discharged through), and at the same time, the motor 5 is rotated so that the tray 3 interlocked with the motor 5 rotates to cook.

As shown in FIG. 6B, the electromagnetic wave discharged through the second opening 11B has a difference between the maximum energy amount and the minimum energy amount being E1, and the electromagnetic wave discharged through the first opening 11A is As shown in FIG. 6A, λ / 4 is faster than the phase of the electromagnetic waves discharged through the second opening 11B, and the difference between the maximum energy amount and the minimum energy amount is E1, and the electromagnetic waves are discharged through the second opening 11B. Is the same as

In addition, the electromagnetic waves discharged through the first opening 11A and the second opening 11B overlap each other as shown in FIG. 6C, and finally, discharge the electromagnetic waves having a uniform energy amount with respect to the wavelength. It has a uniform energy distribution in the X direction of 1), and evenly cooks it.

On the other hand, in the above description, a distance of λ / 4 from the right side surface 1A of the cooking chamber with a predetermined distance difference between the second opening portion 11B formed on the right side surface 1A of the cooking chamber and the upper portion of the second opening portion 11B. For example, although the openings 11 formed of the first openings 11A protruding as much as one example are provided, a plurality of the openings 11 may be formed up and down on one side of the cooking chamber 1.

As described above, according to the opening structure of the microwave oven according to the present invention, the food can be cooked evenly by uniformizing the energy distribution discharged from the magnetron in the X direction of the cooking chamber to heat the food.

Claims (2)

In a microwave oven for heating and cooking food using electromagnetic waves generated by the magnetron (9), a plurality of openings (11) are formed on one side in the cooking chamber (1) of the microwave oven from the magnetron during cooking. The waveguide structure of the microwave oven, characterized in that the food is evenly cooked by making the energy distribution of the electromagnetic waves generated and discharged in the X direction of the cooking chamber uniform. 2. The opening of claim 1, wherein the opening has a second opening 11B formed on one side of the cooking compartment and a side of the second opening 11b from the one side of the cooking compartment 1 with a predetermined distance difference therebetween. Waveguide structure of a microwave oven, characterized in that consisting of a first opening (11A) protruding by a distance.