KR200287895Y1 - Microwave-safe food container exhausting steam - Google Patents

Abstract

The present invention relates to a food container for a microwave oven having a vapor discharge structure, in the food container having a container body and a sealed lid, the bottom surface distribution protrusion projecting downward from the inner side of the sealed lid and in contact with one side of the top of the container body It is formed and protrudes from the bottom inner surface of the sealed lid to form an inner surface distribution projection contacting the outer surface of the container body to form a distribution hole between the container body and the sealed lid is usually used as a food container that sealed the food inside. In addition, even when the user inadvertently cooks the lid in a microwave food container, the lid and the processed food are cooked without being dispersed outside the food container due to the expansion steam pressure inside the food container during cooking.

Description

Microwave-safe food container exhausting steam with steam exhaust structure

The present invention relates to a food container for a microwave oven having a steam discharge structure, usually used as a food container that sealed the food inside, even if the user inadvertently cooked by closing the lid in the food container for microwave oven during cooking The present invention relates to a food container for a microwave oven having a vapor discharge structure in which a lid and a processed food are not dispersed to the outside of the food container due to the expansion steam pressure inside the food container and cooking is performed.

In general, a microwave range is a cooking utensil for heating food using microwave properties. Microwaves transmit air, glass, paper, etc., but are reflected by metal and easily absorbed by food or water. Have. The absorbed electromagnetic energy turns into heat and heats the material.

Commonly used in microwave ovens is a high frequency of 2450 MHz and is generated by special vacuum tubes, ie magnetrons. Magnetron is a very high frequency vacuum tube used in radar communication, and more than 50% of the applied high voltage DC power is converted into microwave power and high efficiency. The magnetron for a microwave oven can operate even if the voltage applied to the anode is alternating current, and hundreds of W or more are being developed.

Microwaves from the magnetron are guided into the oven and are reflected by the surrounding metal walls and absorbed by the food. An oven is a heating chamber of an electrically sealed food, and can be considered as a transmission circuit that receives microwaves from an oscillator and supplies energy to food.

Stainless steel or iron plate is used as the metal reflecting microwaves. It is structurally composed of box-shaped oven with opening and opening and closing door to close the opening, and the contact surface has a shielding structure to prevent leakage of microwaves. When the microwave goes straight and is reflected from the metal surface, the traveling wave and the reflected wave are synthesized to create a strong and weak place in the electric field.

Therefore, it is necessary to make the structure of an oven suitable so that an electric wave may contact a food uniformly so that a heating difference may not arise. In other words, just by putting food into the oven and feeding the microwave, a heating difference is generated depending on the part of the food. In order to prevent this, a method of changing the electric state in the oven by moving the food being heated or moving the irradiated microwave is taken.

The former has a method of rotating a countertop, and the latter is a method of rotating a microwave stirring blade made of metal called Starra. Rotating the star, near the feed section at the top of the oven, reflects microwaves from the metal plane and changes its direction in several directions. As a result, the irradiation angle to the food changes, microwaves are absorbed from all sides of the food, and internal heating is effectively performed. In addition, in order to absorb the microwaves from the bottom surface of the food it is common to place the food on it using a glass plate, which has a low loss factor and a material that transmits microwaves well.

In general, food has a high loss to microwaves and generates a large amount of heat inside, but the main contributor to this phenomenon is water contained in the food 60 to 99%.

The recipes that humans thought and used since ancient times were methods of heating the outside of food and gradually heating it to the inside by heat conduction. However, foods are generally low in thermal conductivity, so in order to cook them quickly to the center in a short time, the temperature gradient between the surface and the center must be increased. This causes the surface to heat up, burn, and lose nutrients.

On the contrary, the cooking by microwaves has the advantage that the food itself generates heat more than the container, so that the efficiency is higher than other heating methods, the cooking time is shortened and vitamins are destroyed. In order to use the microwave as a cooking utensil, in addition to the above basic components, safety and convenience should be taken into consideration.When the door is opened, a safety switch that never generates microwaves and a time switch to set an appropriate cooking time depending on food For example, a thermal switch or humidity fuse to prevent an accident due to overheating provides the above functions.

In addition, in order to produce low output suitable for thawing or egg cooking, an output switching device is installed. These parts are collectively called a control unit. The control unit is also equipped with a timer to conveniently control the cooking time according to the food. Some computer functions are added to the control unit by a microprocessor. The cooking by microwave oven is characteristic that the surface does not burn inherently, but it is often desirable that the surface appears to be burned to some extent depending on food.

As a method of cooking such microwaves, a heating vessel using radio wave absorption heat generation of a ferrite or an oxide-resistant film is used. In the case of meat, microwave heating after soaking in salad oil and soy sauce seems to be burnt by browning reaction.

Heat-resistant glass, etc. is used as a food container for a microwave oven in which food is put in a microwave oven. Heat-resistant glass is resistant to rapid heat and rapid cooling. Glass, which has a low coefficient of thermal expansion and withstands sudden changes in temperature, and has a softening temperature higher than that of ordinary glass (about 1,000 ° C), and usually refers to shrink glass (high silica glass) having such characteristics. Point. In addition to quartz glass, a glass called Vycor is a kind of high-silicate heat-resistant glass. There is also a heat-resistant glass called Pyrex, which is borosilicate glass containing 81% silicic acid and 12% boron oxide. The coefficient of linear expansion is about 5x10-7 for quartz glass, 8x10-7 for bicore, and 32x10-7 for Pyrex.

However, when cooking food in such a microwave-resistant food container made of heat-resistant glass, if the user inadvertently cooks in a closed state by closing the lid of the top of the food container, during cooking the lid is expanded inside the food container. With the sound of steam pressure separated from the food container and collided with the inner wall surface of the microwave oven, at this time, the processed food inside the food container was also distributed in several directions inside the microwave oven to cause a problem that spoils cooking.

The present invention is to solve the above problems, usually used as a food container sealed the food inside, and even if the user inadvertently cooked by closing the lid in the food container for microwave oven inside the food container during cooking An object of the present invention is to provide a food container for a microwave oven having a steam discharge structure in which a lid and a processed food are not dispersed to the outside of the food container due to the expansion steam pressure.

In order to achieve the above object, the present invention is a food container having a container body and a closed lid;

Protruding downward from the inner side of the sealing lid to form a bottom distribution protrusion contacting one side of the upper end of the container body and protruding from the lower inner side of the sealing lid to form an inner side distribution protrusion contacting the outer side of the container body to seal the container body. There is a characteristic of forming a distribution hole between the lids.

1 is a plan view showing a state of the present invention,

Figure 2 is a partial cross-sectional side view showing the laminated appearance of the embodiment of the present invention,

Figure 3 is an enlarged side cross-sectional view of the main portion to enlarge the main portion of the present invention,

Figure 4 is an enlarged side cross-sectional view showing the main portion of the distribution hole embodiment of the present invention.

* Description of the symbols for the main parts of the drawings *

1: food container 10: airtight lid

12: bottom surface distribution projections 14: inner surface distribution projections

16: distributor 20: container body

Hereinafter, the present invention in more detail by the accompanying drawings as follows.

1 is a plan view showing a state of the present invention, Figure 2 is a side cross-sectional view of the excerpt excavation showing the laminated appearance of the present invention embodiment, Figure 3 is an enlarged side cross-sectional view of the main portion enlarged the main portion of the present invention, The enlarged side cross-sectional view showing the main portion of the distribution hole is an embodiment of the present invention.

Food container 1 for a microwave oven having a steam discharge structure of the present invention protrudes from the inside of the bottom surface of the closed lid 10 to form a distribution hole 16 between the top of the container body 20 and the closed lid 10 An inner surface distribution protrusion 14 protruding from the bottom surface distribution protrusion 12 and the lower end of the inner surface of the sealing lid 10 to form a distribution hole 16 between the outer surface of the container body 20 and the sealing lid 10. It is characterized by having.

The bottom surface distribution protrusion 12 and the inner surface distribution projection 14 protruding from the closed lid 10 is finely projected to about 0.5mm and accordingly the spacing of the distribution hole 16 is also fine to about 0.5mm.

This interval is such that the sealing lid 10 is sealed to almost the same as being in close contact with the container body 20, when the internal pressure occurs or the role of the distribution hole (16).

The container body 20 is formed of heat-resistant glass or synthetic resin, the sealing lid 10 is tightly fixed by covering the upper end of the container body 20 is formed of a synthetic resin material.

Referring to the use state of the present invention as follows.

First, when the food is stored in the container body 20 inside the food container 1 of the present invention and put in a microwave oven (not shown) in a state in which the airtight lid 10 is closed around the user, the microwave oven is operated. As time passes, steam is generated inside the food container 1 to generate pressure.

In this way, the pressure generated inside the food container (1) is a bottom distribution protrusion 12 protruding between the top of the sealing lid 10 and the container body 20, the outer surface of the sealing lid 10 and the container body (20) It is discharged to the outside through the distribution hole 16 of approximately 0.5mm interval caused by the inner surface distribution projection 14 protruding therebetween.

When a predetermined pressure is generated inside the food container 1, water vapor is discharged through the distribution hole 16 formed between the container body 20 and the sealing lid 10, and the pressure is extinguished.

The distribution hole 16 of approximately 0.5 mm formed between the container body 20 and the sealing lid 10 of the food container 1 of the present invention is normally kept in close contact with each other to release the odor inside. Blocking the water, and only when the water vapor pressure is generated therein serves as the distribution hole 16 to release the water vapor to the outside.

As such, the present invention is usually used as a food container in which the food is sealed inside, and the lid and processing due to the expansion steam pressure inside the food container during cooking even if the user inadvertently seals the lid in the food container for microwave oven. Food is cooked without being dispersed outside the food container.

The present invention is not limited to the above-described specific preferred embodiment, and any person having ordinary skill in the art to which the present invention pertains may make various modifications without departing from the gist of the present invention claimed in the claims. Of course, such changes will fall within the scope of the claims.

Claims (1)

In a food container having a container body and a closed lid; Protruding downward from the inner side of the sealing lid 10 to form a bottom distribution protrusion 12 in contact with the upper side of the container body 20 and protrudes from the lower inner side of the sealing lid 10 outside the container body 20 Food container for a microwave oven having a steam discharge structure, characterized in that the inner surface distribution protrusion 14 is formed in contact with the side to form a distribution hole (16) between the container body (20) and the sealing lid (10).