KR20040058727A - structure for protecting a gap in microwave oven - Google Patents

Abstract

PURPOSE: A gap preventing structure of a microwave oven is provided to protect electric components against infiltration of water, and to improve the appearance by waterproofing the lower part of the cooking chamber completely with integrally manufacturing the single gasket. CONSTITUTION: Food is cooked in a cooking chamber of a microwave oven, and a planar tray(400) is installed in the cooking chamber. A gasket(500) like the rectangular frame is integrally formed around the tray to prevent the gap in the corner of the cooking chamber. One end of the gasket is arranged to surround the circumference of the tray, and the other end is contacted to the inner wall of the cooking chamber. The gasket is integrally manufactured in the tray through insert molding to reduce manufacturing process, and formed of rubber packing made of silicone.

Description

Structure for protecting a gap in microwave oven

The present invention relates to a microwave oven, and more particularly, to a tray for forming a bottom of a cooking chamber of a microwave oven and a structure for preventing a gap between each corner of the cooking chamber.

In general, a microwave oven (MWO) is a device for cooking food by the heat of intermolecular friction generated by disturbing the molecular arrangement of food by using a high frequency (about 2,450 MHz per second) as a heating source.

FIG. 1 schematically shows the configuration of each part of the microwave oven.

That is, the microwave oven is provided with an oven cavity 20 for forming a cooking chamber into one space inside the exterior frame 10, and the other space is formed with an electrical equipment chamber 30 provided with various electric components.

The cooking chamber becomes an interior space of the oven cavity 20, and a tray 40 made of a ceramic material is mounted in the bottom space of the cooking chamber to form a bottom surface of the cooking chamber.

In this case, the four circumferential surfaces of the tray 40 are mounted with gaskets 51, 52, 53, and 54 made of silicon rubber, respectively, and portions where the gaskets 51, 52, 53, and 54 meet each other. That is, the four corners of the tray 40 are coated with a sealant 60 to prevent gaps between the gaskets 51, 52, 53, and 54.

In addition, the electric compartment is equipped with various electric components such as a magnetron (not shown) for generating microwaves and providing the inside of the cooking chamber.

However, in the conventional microwave oven as described above, the tray 40 mounted inside the cooking chamber and each wall surface of the cooking chamber inside the oven cavity 20 are sealed by a plurality of gaskets 51, 52, 53, and 54. Even if the corner portion, in particular, the penetration between the gaskets (51, 52, 53, 54) between the water and dirt occurs, there is a problem that the satisfaction of the consumer quality is reduced.

This allows the parts in contact with each of the gaskets 51, 52, 53, and 54 to be sealed by the application of the sealant 60, but due to the structure of the apparatus for applying the sealant and the difficulty of its operation, the most corner-side part There was no choice but to generate a gap in FIG.

In particular, when the structure using the conventional gasket (51, 52, 53, 54) and sealant (60) coating applied to the product to clean the inside of the cooking chamber due to many uses, such as commercial microwave oven is generated when cleaning Since a large amount of water leaked to the bottom of the microwave oven through the gap has a problem that can cause damage to various electrical components.

In addition, the gaps and sealants described above are not excellent in appearance, resulting in consumer complaints.

The present invention has been made to solve the conventional problems as described above, the bottom surface of the cooking chamber to achieve a completely waterproof state to the outside by preventing the leakage of water to protect various electrical components, appearance The purpose is to provide a structure to prevent the occurrence of gaps in the inner corner of the cooking chamber of the excellent microwave oven.

1 is a schematic exploded perspective view of a microwave oven for explaining a gap prevention structure between a conventional cooking chamber and a tray;

Figure 2 is a perspective view of the main portion showing the state of the gap generated for each corner portion in the conventional cooking chamber

Figure 3 is a schematic exploded perspective view of a microwave oven for explaining the gap prevention structure between the cooking chamber and the tray of the present invention

4 is a cross-sectional view taken along line II of FIG. 3.

5 is a cross-sectional view taken along the line II-II of FIG. 3.

Explanation of symbols for the main parts of the drawings

200. Oven Cavity 400. Tray

500. Integrated gasket 510. Extension

According to an aspect of the present invention for achieving the above object, a variety of food is cooked, in the cooking chamber of the microwave oven equipped with a plate-shaped tray to form a bottom at the bottom, a rectangular frame as a whole along the circumferential surface of the tray It is formed integrally while forming a shape, one end is formed to surround the circumferential surface of the tray, and the other end is provided with an integral gasket formed to be in close contact along the inner wall surface of the cooking chamber to prevent the interior compartment of the microwave oven. Present a structure for

Hereinafter, a structure for preventing a gap in the cooking chamber of the microwave oven according to an embodiment of the present invention will be described in detail with reference to FIGS. 3 to 5.

First, as shown in the exploded perspective view of Figure 3, the structure for preventing gaps in the microwave oven according to the embodiment of the present invention integrally formed gasket 500 while forming a shape of a rectangular frame as a whole along the circumferential surface of the tray 400 This is provided.

Here, the tray 400 is formed in a plate shape so as to be mounted on a space inside the oven cavity 200 where various foods are cooked, that is, at the bottom of the cooking chamber to form the bottom surface of the cooking chamber.

In addition, the integrated gasket 500 is formed of a rubber packing made of silicon, and is integrally formed so that a gap between each corner portion is not formed using a mold.

Of course, the integrated gasket 500 may not be manufactured using only a mold.

That is, it is more preferable that the injection molded integral gasket 500 is inserted into the tray 400.

That is, by manufacturing the integrated gasket 500 through insert injection, the process for mounting the integrated gasket 500 to the tray 400 can be omitted.

4 and 5 illustrate the cross-sectional structure of the integrated gasket 500 surrounding the tray 400 in more detail.

That is, the integrated gasket 500 is formed in a cross-section having a substantially "C" shape to surround the circumferential surface of the tray 400.

At this time, both sides and the rear side of the integrated gasket 500 in close contact with the inner wall of the cooking chamber of each portion of the integral gasket 500 has an extended portion 510 extending toward the inner wall surface of the cooking chamber on its upper surface. .

The extension part 510 is formed to be thinner and gradually folded toward the inner wall of the cooking chamber, and may be closely attached to the inner wall of the cooking chamber in a larger range. Therefore, the leak of water can be completely blocked.

As a result, even if the cleaning of the inside of the cooking chamber is performed by the tray 400 equipped with the integrated gasket 500, the penetration of the moisture into the inner bottom of the microwave oven, which is the bottom of the cooking chamber, can be prevented.

As described above, the structure of the microwave oven according to the present invention has the following various effects.

First, according to the structure for preventing gaps of the present invention, since the gasket for blocking moisture is integrally manufactured as a single piece, gaps are not generated at each corner portion.

Therefore, the bottom surface of the inside of the cooking chamber has the effect of achieving a completely waterproof state with respect to the outside, thereby also has the effect that can prevent problems caused by moisture infiltration of various electrical components.

In addition, as described above, since the gasket is integrally formed, the process for applying the sealant is omitted, thereby shortening the manufacturing time and having an excellent appearance.

In addition, when the integral gasket such as the present invention is manufactured by insert injection, the process for mounting the integrated gasket to the tray may also be shortened.

Claims (5)

In the cooking chamber of the microwave oven in which various foods are cooked, and the bottom part is equipped with the plate-shaped tray which forms a bottom surface, It is integrally formed in the shape of a rectangular frame as a whole along the circumferential surface of the tray, one end is formed to surround the circumferential surface of the tray and the other end is provided with an integral gasket formed to be in close contact along the inner wall surface of the cooking chamber. To prevent gaps in the cooking compartment of the microwave oven. The method of claim 1, The integrated gasket is A structure for preventing gaps in the cooking chamber of a microwave oven, characterized in that the cross section is formed to have a substantially "c" shape. The method of claim 2, A portion of the upper surface of the integrated gasket, which is in close contact with the inner wall surface of the cooking chamber on both sides except the front side is formed to extend toward the cooking chamber so that the folding is possible to the inside of the cooking chamber of the microwave oven. . The method of claim 1, The integrated gasket is The structure for preventing gaps in the cooking compartment of the microwave oven, characterized in that the mold is manufactured to be mounted on the tray after being manufactured with a mold. The method of claim 1, The integrated gasket is The structure for preventing gaps in the cooking chamber of the microwave oven, characterized in that manufactured by insert injection into the tray.