WO2023239098A1

WO2023239098A1 - Microwave oven

Info

Publication number: WO2023239098A1
Application number: PCT/KR2023/007356
Authority: WO
Inventors: 이영희
Original assignee: 영 센츄리 마이크로 테크 인크; 이영희
Priority date: 2022-06-09
Filing date: 2023-05-30
Publication date: 2023-12-14
Also published as: KR20230169678A

Abstract

The present invention relates to a microwave oven and, more specifically, to a microwave oven which disperses microwaves generated in a magnetron installed in a body to a cooking space through a radio wave dispersion device, allows the microwaves and reflected waves, which are generated by collision of the dispersed microwaves to a diffuser installed at a wall surface of the body, to be combined with each other and thus form standing waves, and heats food by using heat generated by the standing waves. According to the present invention, microwaves having collided with the diffuser installed at the inner wall surface of the body of the microwave oven form standing waves so that heat is uniformly transferred even to a deep part of food within relatively short time and thus any part of the food can be uniformly heated without temperature difference.

Description

microwave oven

The present invention relates to a microwave oven, and more specifically, microwaves generated by a magnetron installed inside the main body are dispersed in the cooking space through a radio wave dispersion device, and the dispersed microwaves are distributed to a diffuser installed on the wall of the main body. It relates to a microwave oven that combines reflected waves generated by collision to form standing waves and uses the heat generated by the standing waves to heat food.

Generally, a microwave oven is a cooking appliance that cooks, reheats, or defrosts food using microwaves instead of other heating methods such as conduction, convection, or radiation.

This is a device that heats the core of the food within a short period of time by irradiating microwaves and causing molecular vibrations inside the food. The food is placed inside the cooking chamber, and the microwaves generated by the microwave supply unit are radiated into the inside of the cooking chamber. The food is heated.

However, the microwave oven according to the prior art radiates microwaves from one side of the cooking chamber to the inside, so there is a problem in that the microwave field inside the cooking chamber is formed unevenly.

That is, the microwave oven has a problem in that the food is heated unevenly because microwaves are not radiated evenly inside the cooking chamber.

The purpose of the present invention is to attach a diffuser made of aluminum or stainless steel to the inner wall of the microwave oven body, and to cause the microwave generated by the magnetron installed inside the body to be reflected by the diffuser to generate reflected waves of different phases. , the microwave, which is an incident wave, and the reflected wave are synthesized to form a standing wave, which is a new interference wave, and the heat generated by the standing wave is used to provide a microwave oven that can uniformly transfer heat to the core of the food.

A microwave oven that heats food using heat generated by standing waves, comprising: a main body including a cooking space therein; A magnetron that generates microwaves in the cooking space; A control device that controls the entire system; It includes a power supply unit that supplies power to the main body.

The main body includes a radio wave dispersion device that distributes microwaves generated by the magnetron to the cooking space; One or more diffusers formed on the wall of the main body; a plastic chamber formed along the diffuser inside the main body; a rotating plate formed in the cooking space to rotate a container containing cooked food; It includes a front door connected to the main body and formed on the inside of glass treated with a waterproof and conductive radio reflector treatment.

The control device includes an input unit for inputting information including one or more buttons among time setting, start, stop, and defrost; a time panel displaying the time set in the input unit; It includes an alarm system that sounds a signal when the food is cooked.

The diffuser is made of either aluminum or stainless steel, and the cross-sectional shape is in the form of a structure in which pillars with different heights are connected in steps, and the ratio of the heights of each pillar is made up of a small number of sequences, and is generated by the magnetron. When the microwave strikes the diffuser and is reflected, the wavelength of the reflected wave forms a standing wave.

Additionally, one or more diffusers are installed on the wall of the main body, but when installed at a corner, a diagonal plate is installed and attached on top to eliminate mirror effect.

The standing wave is an interference wave created by combining a microwave generated from the magnetron, which is an incident wave, and a reflected wave generated when the microwave hits the diffuser. The standing wave can generate heat and heat food.

The plastic chamber is installed with an octagonal cross-sectional shape along the diffuser installed on the inner wall of the main body, and can block moisture and foreign substances generated during cooking in the cooking space from directly contacting the diffuser.

The front door has a handle on the outside to control the open or closed state, and the operation of the power can be controlled by detecting the open or closed state using a door sensor installed on one side of the main body.

According to the present invention as discussed above, food can be heated using the heat generated by the microwave hitting the diffuser installed on the inner wall of the main body to form a standing wave, and the heat is evenly transferred to the food within a relatively short period of time, so that any part of the food can be heated. It can provide the effect of heating evenly without temperature differences in any part.

1 is a photograph of the microwave oven of the present invention.

Figure 2 is a perspective view of the microwave oven of the present invention.

Figure 3 is a front view of the microwave oven of the present invention.

Figure 4 is a diagram showing an example of installation of the diffuser of the present invention.

Figure 5 is a diagram showing the wavelength of a standing wave occurring between the diffusers of the present invention.

Figure 6 is a block diagram showing the overall configuration of the microwave oven of the present invention.

**Symbol description of main parts of the drawing**

1: microwave oven, 10: main body,

11: Radio wave dispersion device, 12: Diffuser,

13: plastic chamber, 14: rotating plate,

15: front door, 20: magnetron,

30: control device, 31: input unit,

32: time panel, 33: alarm system,

40: power unit

Hereinafter, the microwave oven of the present invention will be described in more detail with reference to the accompanying drawings showing preferred embodiments of the present invention. However, it should be understood that the invention may be implemented in many different forms and is not limited to the described embodiments.

Figure 1 is a photograph of the microwave oven of the present invention, Figure 2 is a perspective view of the microwave oven of the present invention, Figure 3 is a front view of the microwave oven of the present invention, and Figure 4 shows an example of installation of the diffuser of the present invention. Figure 5 is a diagram showing the wavelength of a standing wave generated between the diffusers of the present invention, and Figure 6 is a block diagram showing the overall configuration of the microwave oven of the present invention.

The microwave oven 1 of the present invention includes a main body 10, a magnetron 20, a control device 30, and a power supply unit 40.

The principle of the microwave oven (1) is that when microwaves are irradiated to food, the positively charged oxygen atoms and negatively charged hydrogen atoms of the water molecules in the food vibrate, and these vibrations cause each water molecule to exert a force in the opposite direction. They rotate and collide with each other, causing active movement, and the kinetic energy of the water molecules is converted into heat energy, raising the temperature of the food and heating it.

The microwave may be a region of electromagnetic waves with a frequency of 300MHz to 300GHz and a wavelength of 1mm to 1m.

The present invention is a microwave oven (1) that heats food using heat generated by standing waves, comprising: a main body (10) including a cooking space therein; A magnetron (20) that generates microwaves in the cooking space; A control device 30 that controls the entire system; It includes a power supply unit 40 that supplies power to the main body.

As shown in FIGS. 1 to 3 and 6, the main body 10 includes a radio wave dispersion device 11, a diffuser 12, a plastic chamber 13, a rotating plate 14, and a front door 15. do.

The radio wave dispersion device 11 distributes the microwaves generated by the magnetron 20 to the cooking space. The wavelength of the reflected wave generated when the dispersed microwave strikes the diffuser 12 and is reflected forms a standing wave, and the standing wave generates heat to heat the food.

The diffuser 12 is made of either aluminum or stainless steel, and can be installed one or more on the wall of the main body 10.

In addition, as shown in FIG. 2, when the diffuser 12 is installed at a corner of the main body 10, a diagonal plate is installed and attached thereon to eliminate the mirror effect.

Figure 4 is a diagram showing an example of installation of the diffuser 12 of the present invention.

Looking at FIG. 4, the cross-sectional shape of the diffuser 12 is in the form of a structure in which pillars with different heights are connected in steps, and the ratio of the heights of each pillar may be composed of a sequence of prime numbers, The width of each column is equal to the ratio of 1.

Here, a prime number refers to a positive integer greater than 1 that is divisible only by 1 and itself. To determine whether a natural number n is prime or not, 2≤p≤

When n is divided by all prime numbers p in the range, if it is not divisible, it is a prime number, and if it is divisible, it is a composite number. In other words, a prime number is a natural number that has only 1 and itself as positive divisors.

Figure 5 is a diagram showing the wavelength of a standing wave occurring between the diffuser 12 of the present invention.

Looking at Figure 5, the microwave generated by the magnetron 20 is dispersed by the electromagnetic wave dispersion device 11, and the dispersed microwave strikes the diffuser 12 to form a reflected wave that is different in phase from the incident wave. . The interference wave created by combining the incident wave and the reflected wave is a standing wave, and the standing wave formed in this way is used to heat the food in the microwave oven 1. When food is cooked using the heat generated by the standing wave, not only the outer surface of the food but also the core can be heated evenly within a short period of time.

Even if the standing wave is applied to the metal body, it does not form a potential difference inside the metal body, so the energy caused by the electromagnetic wave is not transmitted to the metal body and no spark occurs.

The plastic chamber 13 attaches the diffuser 12 to the inner wall of the main body 10, and is installed along the diffuser 12 in an octagonal cross-sectional shape. The plastic chamber 13 includes an internal cooking space, and can prevent moisture and foreign substances generated when cooking food in the cooking space from directly contacting the diffuser.

The rotating plate 14 is formed in the cooking space inside the plastic chamber 13 and serves to rotate the container containing the food to be cooked, so that heat can be evenly transferred when the food is cooked.

The front door 15 is connected to the front of the main body and may be formed on the inside of glass treated with a waterproof and conductive radio wave reflector. A handle is provided on the outside of the front door 15 to control the open or closed state, and the operation of the power can be controlled by detecting the open or closed state by a door sensor installed on one side of the inside of the main body 10. You can.

For example, when the door is detected to be open by a door sensor, the power may be turned off, and when the door is detected to be closed by the door sensor, the power may be turned on.

The magnetron 20 is similar to a high-power dipole vacuum tube and has a structure in which hot electrons are emitted from the hot ray of the cathode. It is a device that generates high frequency vibration. When the AC voltage of 220V in the home is changed to a high voltage of 4000V or more and current is passed through the magnetron 20, a microwave vibrating at a high frequency of 2.45 GHz is generated in the magnetron 20.

Since the magnetron 20 emits a large amount of heat during operation, a separate cooling system and thermal fuse are required. The thermal fuse is installed on one side to prevent overheating of the magnetron 20, and a cooler fan is installed on one side to prevent overheating of the magnetron 20 by controlling the temperature to prevent overheating.

The thermal fuse is equipped with a bimetal plate that can adjust a specific temperature, so when it exceeds a specific temperature value, the power circuit is bent and opened to prevent overheating of the magnetron 20.

The cooler fan not only cools the magnetron 20 by generating cold air, but also helps circulate air inside the main body and discharge high-temperature steam while the power is on.

According to FIGS. 3 to 6, the control device 30 includes an input unit 31, a time panel 32, and an alarm system 33.

Figure 3 is a front view of the microwave oven of the present invention.

Referring to Figure 3, the control device 30 includes the input unit 31 for inputting information including one or more buttons among time setting, start, stop, and defrost, and the information input from the input unit is expressed as time. It consists of a panel 32 and an alarm system 33 that sounds a signal when cooking of food is completed.

The power unit 40 can control whether the microwave oven 1 operates by inputting a start or stop button on the control device. Additionally, depending on the operating state of the front door 15, the operation can be controlled to stop when the front door 15 is in an open state.

Although the preferred embodiments of the present invention have been described with reference to the accompanying drawings, the technical configuration of the present invention described above can be changed to other specific forms by those skilled in the art without changing the technical idea or essential features of the present invention. You will be able to understand that this can be implemented. Therefore, the embodiments described above should be understood in all respects as illustrative and not restrictive, and the scope of the present invention is indicated by the claims described later rather than the detailed description above, and the meaning and scope of the claims and All changes or modified forms derived from the equivalent concept should be construed as falling within the scope of the present invention.

Claims

In a microwave oven that heats food using heat generated by standing waves,

A main body including a cooking space therein;

A magnetron that generates microwaves in the cooking space;

A control device that controls the entire system;

A microwave oven comprising a power supply unit that supplies power to the main body.
According to clause 1,

The main body is,

A radio wave dispersion device that distributes microwaves generated by the magnetron to the cooking space;

One or more diffusers formed on the wall of the main body;

A plastic chamber formed along the diffuser inside the main body;

a rotating plate formed in the cooking space to rotate a container containing cooked food;

A microwave oven comprising a front door connected to the main body and formed on the inside of glass treated with a waterproof and conductive radio reflector treatment.
According to clause 1,

The control device is,

An input unit for inputting information including one or more buttons among time setting, start, stop, and defrost;

a time panel displaying the time set in the input unit;

A microwave oven comprising an alarm system that sounds a signal when cooking of food is completed.
According to clause 2,

The diffuser,

Made of either aluminum or stainless steel,

The cross-sectional shape is a structure in which columns of different heights are connected in a stepped manner, and the ratio of the heights of each column is made up of a small number of sequences.

A microwave oven, characterized in that the wavelength of the reflected wave generated when the microwave generated by the magnetron is reflected by hitting the diffuser forms a standing wave.
According to clause 2,

The diffuser,

A microwave oven installed on one or more walls of the main body, and when installed at a corner, a diagonal plate is installed and attached thereto to eliminate mirror effect.
According to clause 4,

The standing wave is,

An interference wave created by combining a microwave generated from the magnetron, which is an incident wave, and a reflected wave generated when the microwave hits the diffuser,

A microwave oven characterized in that it heats food by generating heat by the standing wave.
According to clause 2,

The plastic chamber is,

The cross-sectional shape is octagonal along the diffuser installed on the inner wall of the main body,

A microwave oven characterized in that it blocks moisture and foreign substances generated during cooking in the cooking space from directly contacting the diffuser.
According to clause 2,

The front door is,

A microwave oven that has a handle on the outside to control the open or closed state, and controls the operation of the power source by detecting the open or closed state using a door sensor installed on one side of the main body.