KR100371332B1 - A forming structure for electronic range - Google Patents

Abstract

The present invention relates to a foaming structure of a microwave oven for heating and cooking food using circular polarization,

It is installed in the center of the lower surface of the microwave oven, and includes a food loading portion for placing food, and formed on the upper surface of the microwave oven and forming a protruding portion in the form of a spherical shape so that the electromagnetic wave is concentrated in the food loading portion, The upper surface forming structure of the range is formed by sweeping two circular arcs so that the electromagnetic waves can be concentrated in the center of the food, which is excluded from the rotation of the circular polarization and the rotation of the rotating plate. Will provide a beneficial effect.

Description

A forming structure for electronic range

The present invention relates to a foaming structure of a microwave oven for heating and cooking food using circular polarization, and in particular, by forming the upper surface of the microwave oven in a curved shape to concentrate the electromagnetic waves in the central portion of the food so that the entire food can be uniformly heated. It relates to a forming structure of a microwave oven.

In recent years, with the increase in nuclear families, simple-working foods and cooking devices, which shorten the complicated and time-consuming cooking process, have been widely used.

Among these cooking appliances, microwave ovens are convenient for cooking and thawing ready-cooked foods or frozen foods, and because the whole food can be heated simultaneously without the need for preheating or water, the microwaves can be cooked without damaging the color, shape and taste of the food. Speed cooking, thermal efficiency, nutrient preservation, reheating and the like can be made widely used.

The microwave oven is a cooking device that applies the principle that the food in the metal casing generates heat by its own molecular motion using electromagnetic waves of about 2450 MHz, which can be largely divided into an oscillation part, a power supply part, a control part, and a heating chamber part 2 in structure. have.

Here, the oscillation portion is composed of a magnetron (1) for generating a radio wave, a waveguide for guiding the radio wave to the heating chamber portion, and a cooling fan for cooling the magnetron, the power supply unit is a high voltage transformer for generating a heater voltage and direct current high voltage required for the operation of the magnetron , High voltage capacitor, high voltage diode, etc.

In addition, the control unit is made of a time switch or other control circuit for controlling the heating time, the heating chamber portion is a heating chamber (2a), the food support (2b) and the door for putting in and taking out food, The rotating table 2c which turns a food support for uniform heating, the stirrer pan which stirs an electric wave, and the thing which used these together are used.

FIG. 1 is a view briefly illustrating a general microwave oven, and each arrow shows an example of a reflection form of radio waves emitted from the magnetron 1. In addition, reference numeral A, which is not described in FIG. 1, is an antenna.

In the operation of the microwave oven, when food is placed on the food support 2b and the rotary table 2c is rotated to heat the food, radio waves are generated in the magnetron 1, and radio waves are transmitted through the waveguide to the heating chamber 2a. You will be guided to. At this time, the voltage necessary for the operation of the magnetron 1 is made in the power supply unit is supplied to the oscillation unit.

At this time, the user determines the heating time in advance according to the type and amount of food through the control unit, the heating chamber to heat the food while rotating the rotary table for a predetermined heating time.

By the way, in the conventional case, despite the uniform heating of the food due to the rotational effect of the rotary table 2c, the center portion of the food is in a position that can not be affected by the rotational effect of the rotary table 2c There is a problem in that the heating pattern may be weaker than the peripheral portion.

The present invention has been made to solve the above-mentioned problems of the prior art, the object is to form a top forming structure of the microwave oven using a circular polarization by sweeping two circular arcs to effect the rotation of the circularly polarized wave and the rotation effect of the rotating plate By focusing on the central portion of the food alienated from the to provide a foaming structure of the microwave oven can improve the overall uniform heating performance of the food as compared to the conventional.

1 is a cross-sectional view schematically showing the structure of a typical microwave oven,

2 is a perspective view showing a forming structure of a microwave oven according to the present invention;

FIG. 3 is a detailed view of an arc structure forming a top forming part which is a part of FIG. 2; FIG.

<Explanation of symbols on main parts of the drawings>

10: cavity 20: magnetron

30: waveguide 40: top forming part

: Connecting line between both ends where top forming starts

: Connecting line between both ends of central portion of food load

: Connecting line of A and C points : Connecting line between B and D point

E: Wow Intersection of

: Arc around E point

According to a first feature of the microwave oven forming structure according to the present invention for solving the above problems, the food loading portion is installed on the inner lower surface of the microwave oven, food is placed, and protrudes in the shape of a sphere on the upper surface of the microwave oven And a forming unit for intensively reflecting electromagnetic waves having a predetermined angle incident on the upper surface to a central portion of the food loading unit.

In addition, according to the second aspect of the present invention, the forming portion is formed in a curved shape by sweeping two circular arcs having vertical and horizontal directions with respect to a predetermined plane.

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

First, FIG. 2 is a perspective view showing a forming structure of a microwave oven according to the present invention, and FIG. 3 is a view showing in detail a circular structure forming a top forming part which is a part of FIG. 2.

Next, referring to FIG. 2, the present invention includes a cavity 10 surrounded by a conductor wall to form a predetermined space therein, and a rotating plate (not shown) on which a food is placed is disposed on an inner lower surface thereof; A magnetron 20 for generating and outputting electromagnetic waves on one side of the cavity 10; A wave guide (30) installed between the cavity (10) and the magnetron (20) to guide the electromagnetic waves generated by the magnetron (20) into the cavity (10); It comprises a top forming portion 40 protruding in a hemispherical shape to reflect the electromagnetic wave guided to the upper surface of the inside of the cavity 10 through the wave guide 30 to be concentrated in the center portion of the food.

In particular, the upper forming unit 40 is connected to the C point and the D point to the end point of the food load to concentrate the electromagnetic waves as C, D point as shown in Figure 3 ( ) A and B points are connected at both ends where the top forming starts. )

After that, Wow Each point located in the same direction is connected to each other. Point A is connected to point C, and point B is connected to point D. Wow Find E point where the connecting line of. Here, when the circular arc connecting the point A and the point B to the center of the point E is drawn, one circular arc for forming the upper forming unit 40 ( ) Is formed.

A circular arc perpendicular to the circular arc in the same manner as above Get) That is, the line segment And Segment Orthogonal to And And set straight Wow The intersection point E 'of two straight lines can be obtained by using. Of course, drawing an arc centering on the point E 'and connecting the points A' and B 'is another circular arc for forming the upper forming unit 40 ( ) Is formed. Where the line segment And And line segment And If the lengths of are equal to each other, the intersection point E and the intersection point E 'coincide with each other, and the top forming part 40 becomes spherical. The upper surface forming portion 40 is formed by the curved surface. Thus, among the electromagnetic waves incident on the upper forming portion 40 formed by the two arcs, And Because it is reflected so that it can be located on the line, the electromagnetic wave is θ / 180 to the center of the food load ( And Will be concentrated).

In the operation of the present invention configured as described above, the electromagnetic wave generated by the magnetron 20 is introduced into the cavity 10 through the wave guide 30. At this time, the electromagnetic wave introduced into the cavity heats the food evenly by the rotation of the circular polarization and the rotation of the rotating plate.

In particular, the upper forming unit 40 formed by sweeping two circular arcs on the upper portion of the cavity 10 is designed to reflect the electromagnetic wave introduced at an angle of θ toward the center portion of the food load. Electromagnetic waves are concentrated in the center part.

As a result, the present invention enters the upper forming portion 40 to compensate for the weak heating pattern compared to other portions of the center portion of the food, which has been alienated by the circular polarization and the rotation of the rotating plate while the food is being heated. By concentrating the electromagnetic wave of θ angle to the center portion of the food, the food can be heated evenly as a whole by the curved shape of the upper forming part 40 together with the circular polarization and the rotating effect of the rotating plate.

The microwave oven forming structure according to the present invention is configured by sweeping two circular arcs to form a top forming structure of the microwave oven using the circular polarization, the electromagnetic wave is alienated from the rotation of the circular polarization and the rotation effect of the rotating plate By concentrating on the center portion, there is an effect that the overall heating performance of the food can be significantly improved compared to the conventional food.

Claims (2)

Food loading portion is installed on the inner lower surface of the microwave oven, the food loading portion, and a forming portion for projecting a spherical shape on the upper surface of the microwave oven to reflect the electromagnetic wave having a predetermined angle incident on the upper surface to the central portion of the food loading portion The forming structure of the microwave oven characterized by the above-mentioned. The method of claim 1, The forming unit of claim 1, wherein the forming unit sweeps two circular arcs having a vertical and horizontal direction with respect to a predetermined plane to form a curved surface.