KR20080040381A - Microwave oven with device for dispersing microwave - Google Patents

Abstract

A microwave oven having a microwave dispersing device is provided to equally cook the food by disposing the microwave dispersing device at an upper part of a cooking chamber to uniformly distribute microwaves from a magnetron. A microwave oven having a microwave dispersing device comprises a cooking chamber(110), a machine room(115) formed at a side of the cooking chamber, a magnetron(130), a waveguide(125) and a microwave dispersing device. The magnetron is installed at a side of the machine room to generate microwaves. The waveguide forms a passage for transmitting microwaves toward the cooking chamber. The microwave dispersing device allows the microwaves transmitted through the waveguide to be dispersed into the cooking chamber. The microwave dispersing device includes a driving unit(140), a strut fan(150) rotating by a torque transmitted from the driving unit and a bracket formed on the strut fan.

Description

Microwave Oven with Radio Dispersing Device {MICROWAVE OVEN WITH DEVICE FOR DISPERSING MICROWAVE}

1 is a perspective view showing a microwave oven according to the prior art.

Figure 2 is a front sectional view showing an embodiment of a microwave oven having a wave dispersing device according to the present invention.

Figure 3 is a plan view showing an embodiment of a microwave oven having a wave dispersing device according to the present invention.

Explanation of symbols on the main parts of the drawings

110: cooking chamber 112: tray

113: tray motor 115: battlefield

125: waveguide 130: magnetron

140: drive unit 145: belt

150: strut fan 152: auxiliary strut fan

155: radio wave distribution bracket 160: protection unit

170: radio wave dispersion device

The present invention relates to a microwave oven, and more particularly to a microwave oven having a wave spreading device.

In general, a microwave oven is a cooking apparatus that cooks food using microwaves in a short time, and microwaves generated from a magnetron to which high voltage is applied are irradiated to food in the cooking chamber through a waveguide, By vibrating the water molecules contained therein to generate thermal energy, the food is heated and cooked therein.

Such microwave ovens can be used to cook a variety of foods in a variety of ways by appropriately adjusting the microwave output and the time the microwaves are irradiated to the food, and can also be used to heat foods already cooked or to melt frozen food. have.

1 is a perspective view showing a microwave oven according to the prior art.

Referring to FIG. 1, the microwave oven basically includes a cooking chamber 10 inside the inner case 10a and an electric cabinet 20 between the outer case 20a and the inner case 10a.

In the cooking chamber 10, the tray 15 on which the food is placed, the tray motor (not shown) for rotating the tray 15 at the lower part of the tray 15, and the food on the side or the upper side of the cooking chamber 10. A heater (not shown) for heating is installed.

In addition, a magnetron 40 for generating microwaves and a high voltage transformer (not shown) for applying a high voltage to the magnetron 40 are installed in the electric compartment 20.

Looking at the process of cooking food by the microwave oven, the food is placed on the tray 15 of the cooking chamber 10, and then the operation panel 25 is operated to set cooking conditions and operate the microwave oven.

Thereafter, microwaves are generated in the magnetron 40 by the high voltage applied from the high voltage transformer, and the microwaves are guided into the cooking chamber 10 through the waveguide 42.

This microwave is irradiated to the food placed in the tray 15, and the tray 15 is rotated by the tray motor so that the microwave is evenly transmitted to the food.

In addition, by heating the heater installed on the side or the upper portion of the cooking chamber 10 may increase the temperature inside the cooking chamber 10 to heat the food.

However, it is very difficult to uniformly distribute the microwaves generated in the magnetron 40 into the cooking chamber 10 during the cooking process by the microwave oven.

Because of this, the microwave is concentrated only on a specific portion of the food contained in the cooking chamber 10, the food is not evenly cooked, and thus there is a problem in that the quality and performance of the product are deteriorated.

Therefore, there is a need for improvement.

The present invention has been made by the necessity as described above, and an object thereof is to provide a microwave oven capable of uniformly distributing microwaves generated in the magnetron into the cooking chamber.

A microwave oven having a wave spreading device according to the present invention comprises: a cooking chamber in which food is cooked; An electrical equipment chamber formed at one side of the cooking chamber; A magnetron installed inside the electric room to generate microwaves; A waveguide providing a passage for moving the microwaves generated from the magnetron toward the cooking chamber; And a radio wave dispersing device for dispersing and transmitting the microwaves moved from the waveguide to the cooking chamber.

The propagation dispersion device, the drive unit for providing a rotational force; A strut fan that receives rotational force from the driving unit and rotates; And it is preferable to include a wave propagation bracket for dispersing microwaves formed on the strut pan.

In addition, a belt for transmitting the rotational force of the drive unit; And it is preferable to further include an auxiliary strut fan which rotates by receiving the rotation of the drive unit by the belt, the electromagnetic wave dispersion bracket is formed.

In addition, one side of the strut pan and the auxiliary strut pan may further include a protection unit to prevent the moisture generated in the cooking chamber from being applied to the electric wave spreader.

In addition, the protection unit is more preferably manufactured using a plastic so as to transmit the microwaves dispersed in the wave dispersing device.

Microwave oven having a wave dispersing device according to the present invention having the configuration as described above, unlike the conventional invention, by placing a wave dispersing device on the upper part of the cooking chamber, the microwave generated from the magnetron is evenly distributed inside the cooking chamber to cook the food evenly, The quality and performance of the microwave oven can be improved.

Hereinafter, with reference to the accompanying drawings will be described an embodiment of a microwave oven having a radio wave dispersion device according to the present invention. In this process, the thickness of the lines or the size of the components shown in the drawings may be exaggerated for clarity and convenience of description. In addition, terms to be described below are terms defined in consideration of functions in the present invention, which may vary according to the intention or convention of a user or an operator. Therefore, definitions of these terms should be made based on the contents throughout the specification.

Figure 2 is a front sectional view showing an embodiment of a microwave oven having a wave dispersing device according to the present invention, Figure 3 is a plan view showing an embodiment of a microwave oven having a wave dispersing device according to the present invention.

Referring to FIGS. 2 and 3, the microwave oven having a wave spreading device includes a cooking chamber 110, an electric field chamber 115, and a wave spreading device 170.

The cooking chamber 110 is formed inside the inner case (not shown) to cook food, and a tray 112 is installed on the bottom surface.

In addition, a tray motor 113 is installed below the tray 112.

The electrical equipment room 115 is formed between the outer case (not shown) and the inner case, and accessories that are in charge of operation functions such as the magnetron 130 and the panel unit (not shown) are installed.

The magnetron 130 is installed inside the electric room 115, and generates microwaves to irradiate the inside of the cooking chamber 110 to cook the food.

The waveguide 125 becomes a movement path of the microwaves generated by the magnetron 130 and transmits the microwaves to the wave dispersing chamber 154 in which the wave dispersing device 170 is located.

The wave dispersing device 170 is installed at the upper portion of the cooking chamber 110 and is preferably installed in the outer case, and the microwave generated from the magnetron 130 passes through the waveguide 125 and the strut fan 150 and the auxiliary strut fan. Dispersed by 152 to be supplied into the cooking chamber 110.

The wave spreading device 170 includes a driving unit 140, a belt 145, a strut fan 150, and a wave spreading bracket 155.

The driving unit 140 is installed in the space between the inner case and the outer case, and provides a rotational force to rotate the strut fan 150 and the wave propagation bracket 155.

On the other hand, the operation of the driving unit 140 is controlled by a controller (not shown).

The belt 145 transmits the rotation of the driving unit 140 to the auxiliary strut fan 152.

The wave propagation bracket 155 is formed in the circumferential direction of the strut fan 150 and the auxiliary strut fan 152, and enables microwaves radiated from the magnetron 130 to be dispersed.

The protection unit 160 transmits the microwaves distributed by the wave dispersing device 170 to the cooking chamber 110, and prevents moisture or smoke generated from the cooking chamber 110 from being applied to the wave dispersing device 170. .

Therefore, the protection unit 160 is preferably installed below the radio wave dispersion apparatus 170.

In one embodiment, the protection unit 160 is made of glass, plastic that can pass through the microwave, and is preferably installed using a thin plastic in order to minimize the weight of the wave dispersing device 170.

By examining the relationship between the cooking degree of the food and the rotational speed of the electric wave dispersion device 170 by experiments, the maximum efficiency of the electric wave dispersion device 170 is maintained when the speed is varied within the range of 90-150 rpm per minute. Can be.

Therefore, it is preferable to adjust the rotational speed of the driving unit 140 in this range.

The porous part (not shown) is installed at the interface between the battlefield chamber 115 and the cooking chamber 110, through which air in the battlefield chamber 115 moves to the cooking chamber 110 and cools the inside of the cooking chamber 110. .

In addition, after cooking, the hot air in the cooking chamber 110 is discharged to the outside through the electrical equipment chamber 115.

The cooling fan (not shown) is disposed at the rear of the battlefield chamber 115, and serves to suck external air into the battlefield chamber 115, and the hot air of the cooking chamber 110 after cooking to the outside via the battlefield chamber 115. Serves to discharge.

The control unit controls the operation of the cooling fan 125, the magnetron 130, the driving unit 140, and the like, and also displays the operation state of each component on the panel unit (not shown).

The panel unit displays whether the cooling fan 125 is operated, the magnetron 130 and a heater (not shown), and the like, and the buttons may be selectively adjusted by touching a button.

Hereinafter, with reference to the accompanying drawings will be described in detail the operation of the microwave oven having a radio wave distribution device according to an embodiment of the present invention.

First, when a user places food on the tray 112 of the cooking chamber 110 and operates the microwave oven by manipulating the panel unit, the magnetron 130 operates so that the microwave passes through the waveguide 125 to the wave dispersion chamber 154. Enter

The microwaves entering the electric wave dispersion chamber 154 are dispersed by the propagation distribution bracket 155 formed in the strut pan 150 and the auxiliary strut fan 152 interlocked with the rotation of the driving unit 140 and the cooking chamber ( Go to 110).

In addition, the microwaves transmitted to the food by the rotation of the tray 112 can be evenly transmitted to the food to allow the food to cook evenly.

At this time, the protection unit 160 formed at the boundary between the electric wave dispersion chamber 154 and the cooking chamber 110 passes the microwaves from the electric wave dispersion chamber 154 to the cooking chamber 110, but is generated during cooking of the food. Moisture and smoke is prevented from entering the wave dispersion chamber 154 to protect the wave spreader 170 from moisture and smoke.

Although the present invention has been described with reference to the embodiments shown in the drawings, this is merely exemplary, and those skilled in the art to which the art belongs can make various modifications and other equivalent embodiments therefrom. Will understand. In addition, the present invention has been described using a microwave spreading device and a control method thereof as an example, but this is merely illustrative, and the wave spreading device of the present invention may be used for other radio wave spreading devices other than the wave spreading device used in the microwave. . Therefore, the true technical protection scope of the present invention will be defined by the claims below.

As described above, in the microwave oven having the electric wave dispersing device according to the present invention, unlike the conventional invention, by placing the electric wave dispersing device on the upper part of the cooking chamber, microwaves generated from the magnetron are uniformly dispersed in the cooking chamber to cook the food evenly. The quality and performance of the microwave oven can be improved.

Claims (5)

A cooking chamber in which food is cooked; An electrical equipment chamber formed at one side of the cooking chamber; A magnetron installed inside the electric room to generate microwaves; A waveguide providing a passage for moving the microwaves generated from the magnetron toward the cooking chamber; And And a radio wave dispersing device for distributing and transmitting microwaves moved from the waveguide to the cooking chamber. According to claim 1, wherein the electric wave dispersion device, A driving unit providing a rotational force; A strut fan that receives rotational force from the driving unit and rotates; And And a wave spreading bracket formed on the strut pan to disperse microwaves. The method of claim 2, A belt for transmitting the rotational force of the drive unit; And The microwave oven having a propagation device, characterized in that it further comprises an auxiliary strut fan which is rotated by receiving the rotation of the drive unit by the belt, the electromagnetic wave distribution bracket is formed. The method of claim 3, One side of the strut pan and the auxiliary strut pan further comprises a protection unit to prevent the moisture generated in the cooking chamber is applied to the electric wave spreader. The method of claim 4, wherein The protection unit is a microwave oven having a wave dispersing device, characterized in that manufactured by using a plastic so as to transmit microwaves dispersed in the wave spreading device.

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