KR20060119516A - A humidity removing method of convection microwave oven - Google Patents

Abstract

A moisture removing method of a convection microwave oven is provided to remove humidity in a cooking chamber by driving a convection fan in a combination mode and moving air through an exhaust port of an upper plate from the cooking chamber. An operation mode of a convection microwave oven is selected by inputting an operation mode selection signal through a key pad(200). Food is heated alternately by using a heater and microwave in inputting a combination mode(210). Operation time of alternate heating by the heater and microwave is compared with five minutes in the combination mode(220). Moisture is generated in a cooking chamber in alternately heating over five minutes. A control unit checks heating in the combination mode and the remaining time to be over 1 minute(230). The control unit heats food by simultaneously performing the microwave mode and the heater mode in case of the remaining time of alternate heating to be 1 minute(240).

Description

A humidity removing method of convection microwave oven}

Figure 1a is a perspective view of a typical convection microwave oven.

Figure 1b is a rear view of a typical convection microwave oven.

2 is an operation control flow diagram showing an operation control process of the convection microwave oven according to the prior art.

3 is an operation control configuration diagram of a convection microwave oven according to the present invention.

Figure 4 is an operation control flow diagram for removing moisture generated in the refrigerator during the convection cooking of the convection microwave oven according to the present invention.

              Description of the main parts of the drawing

4: magnetron 9: heater

25: fan fan 80: electric fan

90: fan fan 300: control unit

310: signal input unit 320: display unit

330: electric fan fan motor 350: damper

395: power supply

The present invention relates to a convection microwave oven, and more particularly, to a method for removing moisture in a convection microwave oven for removing moisture generated in the refrigerator during cooking.

Microwave oven is a single function microwave that thaws or cooks food by using high frequency oscillating magnetron, and heater or convection pan is installed at the top of cooking room, and cooking in addition to cooking by high frequency as well as grill cooking It is divided into multifunctional microwave oven which can do it.

In general, a microwave oven is a device that heats food by high frequency, and a magnetron is installed in one electric compartment, and the high frequency generated from the magnetron is irradiated into the cooking chamber, and a tray on which the cooking vessel is placed at the bottom of the cooking chamber. Is provided. And the lower part of this tray is provided with a tray motor that can rotate the tray. Accordingly, the cooking vessel placed thereon is rotated along the tray, so that the high frequency irradiated to the cooking chamber is uniformly transmitted to the food in the container, and is configured to uniformly heat.

These microwave ovens can greatly reduce the cooking time of food due to high thermal efficiency, reduce the loss of nutritional value during cooking, thawing and warming of food, and can also be conveniently used by directly inspecting food while stored in a container. have.

In particular, recently developed microwave ovens are equipped with a heater and a blower fan using resistance heat, such as a microwave oven, cooking food by the microwave and heating the food by the heat of the heater, such as bread or fish A convection model is constructed to enable cooking requiring surface browning. Hereinafter, the microwave oven to be described in the related art and the present invention is a convection model.

Convection microwaves are classified into microwave mode operating in microwave and heater mode operating in heater heat. And the heater mode is composed of convection and combination mode.

1A is a perspective view of a typical convection microwave oven, and FIG. 1B is a rear view of a typical convection microwave oven.

In general, the cooking chamber 2 is formed inside the cavity 1 serving as a frame of the microwave oven. In the cooking chamber 2, food is input and cooking is performed while being heated by heat of a microwave or a heater.

One side of the cavity (1) is provided with an electrical equipment chamber (3) in which electrical components for the oscillation of the microwave are installed. The magnetron 4 for oscillating the microwave is mounted on one side wall of the electric compartment 3 and the cooking compartment 1. The magnetron 4 scans microwaves into the cooking chamber 2. In addition to the magnetron 4, a plurality of electric component parts are installed in the electric compartment 3. Examples of the electrical components installed in the electrical equipment chamber 3 include a magnetron 4, a high voltage capacitor, a high voltage transformer, and the like.

On the other hand, the front surface of the cavity 1 is formed by the front plate 5, the front plate 5 is a portion corresponding to the cooking chamber 2 is open. In addition, an inlet 6 is formed on the side wall of the cavity 1 that divides the cooking chamber 2 and the electric compartment 3. The inlet 6 is a portion through which air for sucking air into the cooking chamber 2 and discharging water vapor generated during cooking to the outside. A plurality of through holes are formed in the inlet 6, and a damper 350 is configured to control the opening and closing of the through holes. When the damper 350 performs the closing operation, the electric compartment and the cooking compartment are divided, and when the damper 350 performs the opening operation, air circulation is performed from the electric compartment to the cooking compartment.

The upper plate 7 is installed on the upper surface of the cavity 1. An exhaust port 8 through which air circulated in the cooking chamber is discharged is formed on the upper plate 7. On the upper plate 7, various components are installed, including the heater 9 and the convection fan motor 25.

And the upper plate 7 is formed with a porous portion 11 for minimizing the leakage of the microwave while sending the heat of the heater (9) to be described below to the inside of the cooking chamber (2). The heater 9 is provided on the porous portion 11 on the upper surface of the cavity 1. The heater 9 supplies heat to the inside of the cooking chamber 2 to heat the food.

The rear of the convection microwave oven shown in FIG. 1B is configured with a full-length fan 80 for discharging the heat generated in the electric chamber 70 to the outside, and discharges the heat generated in the cooking chamber 50 to the outside. Conversation fans 90 are mounted to each other. The convection fan 90 is driven to remove moisture inside the cooking and to prevent the temperature of the electric parts from rising abnormally.

Generally, in the microwave mode, moisture generated by heating food in the cooking chamber is removed to the outside to remove moisture generated in the cooking chamber 2. To this end, the electric field fan motor (not shown separately) in the electric compartment 3 is operated to allow the generated wind to flow into the cooking chamber 2.

In the heater mode, when the food is heated by the heater, the air temperature around the food should be heated to a very high temperature. Therefore, by using the damper 350 to prevent the heat inside the cooking chamber 2 to escape to the outside to block the inlet 6 through which the air flows to prevent the air from entering the cooking chamber (2). As a result, the leakage of heat in the cooking chamber 2 is prevented.

Meanwhile, in the combination mode, the heater mode and the microwave mode are alternately heated. Therefore, when the cooking chamber 2 is heated in the heater mode, the heating is performed while the damper 350 is closed in order to increase the thermal efficiency of the heater. As a result, the air flow between the electric chamber 3 and the cooking chamber 2 is blocked.

When the microwave is operated after the heater is driven in the combination mode, the heating is performed in a state in which the damper 350 is closed. When the heating proceeds in the microwave mode, the water of the food is excessively generated. However, since the damper is in a closed state, the inflow of wind into the cooking chamber 1 is blocked. As a result, the excessive moisture generated in the interior can not escape to the outside.

2 is an operation control flowchart showing an operation control process of the combination mode of the convection microwave oven according to the prior art.

First, the operation mode of the convection microwave oven is selected. In order to select an operation mode, an operation mode selection signal is input through a keypad (not shown) configured in front of the convection microwave oven main body (step 100).

When the operation mode input in the step 100 is a combination mode (step 110), heater heating and microwave heating are alternately performed. At this time, the operation mode during the alternate heating according to the current combination mode is determined (step 120).

Therefore, in the process of alternating heating according to the combination mode, the damper 350 maintains the closed state in the current heater mode. The damper 350 is closed because the heater cooking requires a high temperature, and thus the air inlet is blocked using the damper 350 so that the heat inside the cooking chamber 2 does not go out. In addition, in the heater mode, the electric room fan 80 and the convection fan 90 are driven (step 150). The heat generated in the electric compartment is cooled by driving the electric compartment fan 80. Then, the air is circulated from the inside of the cooking chamber to the outside by driving the convection fan 90.

When the heater mode operation according to the combination mode elapses for a predetermined time (step 160), the flow returns to step 120 to alternately heat the microwave mode in the combination mode.

Meanwhile, in step 120, the damper 350 maintains the closed state even in the microwave mode. In the microwave mode, the electric chamber fan 80 is driven to cool the heat generated in the electric chamber 3. However, the convection fan 90 does not operate. At this time, during the operation of the 130 step, due to the irradiation of the microwave, excessive moisture is generated from the food. However, by maintaining the damper 350 in a closed state, there is a problem that the air does not flow between the electric chamber 2 and the cooking chamber 2, the moisture is not removed.

As described above, it is determined whether the preset microwave operating time has elapsed in the alternating heating of the combi mode (step 140), and if the microwave operating time has elapsed during the alternating heating of the combi mode, the heater mode of step 150 is determined. Heating takes place.

As described above, steps 120 to 160 in which the heating of the heater mode and the microwave mode are repeated by alternating heating of the combination mode are performed. The alternating heating of the heater and the microwave according to the combination mode proceeds until the end of cooking. (Step 170).

Therefore, the heating method of the convection microwave oven according to the prior art had the following problems.

Conventionally, in the combination mode of the convection microwave oven, when the heater heating is performed during the alternating heating of the heater and the microwave, the damper for controlling the inflow of air between the electric compartment and the cooking compartment is kept closed to increase the heating efficiency of the heater. . Then, even when alternating heating is performed in the microwave mode, the damper remains closed. However, when heated in the microwave mode, water is excessively generated from the food, and the damper is kept closed in the same manner as in the heater mode. As a result, the air does not flow into the cooking chamber from the electrical compartment, there is a problem that excessive moisture generated in the cooking chamber is not removed.

Accordingly, an object of the present invention is to provide a moisture removal method of a convection microwave oven for removing moisture generated in the refrigerator during microwave cooking according to the combination mode.

Moisture removal method of the convection microwave oven according to the present invention for achieving the above object, in the combination mode of the convection microwave oven, the electrical equipment room in the state in which the damper is closed to block the air flow of the electrical equipment room and the cooking chamber during heating the heater An alternating heating control step of controlling the alternating heating by driving the fan and the convection fan and driving the electric room fan while the damper is closed when the microwave is heated; A time checking step of determining whether or not the alternating heating step is a predetermined time (1 minute) before the end of cooking, after a predetermined time (5 minutes); If it is determined that the cooking process is finished before a predetermined time (1 minute), the electric compartment fan and the convection fan are driven with the damper closed to heat the heater and the magnetron at the same time and shut off the airflow between the electric compartment and the cooking compartment. It is configured to include a maximum heating control step for controlling the moisture generated in the discharge to the outside.

Hereinafter, a method for removing moisture of a convection microwave oven according to the present invention will be described with reference to the drawings of the convection microwave oven of FIGS. 1A to 1C.

3 is an operation control configuration diagram of the convection microwave oven according to the present invention.

The present invention has the following control configuration in order to remove excessive moisture generated from the food during microwave heating according to the combination mode. A signal input unit 310 for inputting an operation signal (operation mode and time, etc.), a display unit 320 for displaying an operation signal (operation mode and time, etc.) input through the signal input unit 310 to the outside, and A power supply unit 395 for supplying power to the section microwave oven, a control unit 300 for performing control operations such as heating and moisture removal of the convection microwave oven, an electric room fan 80, and an electric room fan 80 Electric fan fan 330 for generating power for driving), damper 350 for opening and closing operation to control the flow of air between the electric compartment 3 and the cooking chamber 2, and the convection The fan 90, the convection fan motor 25 generating power for driving the convection fan 90, the heater 9 generating heater heat, and the magnetron 4 irradiating microwaves. It is composed.

Generally, in the microwave mode, the microwave is irradiated to the cooking chamber 2 by the driving of the magnetron 4. As the food in the cooking chamber 2 is heated by irradiation of microwaves, moisture is generated from the food. Accordingly, moisture generated from the food is removed to the outside to remove moisture generated in the cooking chamber 2. To this end, the electric wind generated by the electric fan fan 330 in the electric compartment 3 is introduced into the cooking chamber 2. At this time, the damper 350 is opened so that the wind flows into the cooking chamber from the electrical equipment room 3.

In the heater mode, when food is heated by the heater 9, the air temperature around the food should be heated to a very high temperature. Therefore, by using the damper 350 to prevent the heat inside the cooking chamber 2 to escape to the outside to block the inlet 6 through which the air flows to prevent the air from entering the cooking chamber (2). That is, the damper 350 is closed. As a result, the leakage of heat in the cooking chamber 2 is prevented.

Meanwhile, in the combination mode, the heater mode and the microwave mode are alternately heated. Therefore, when the cooking chamber 2 is heated in the heater mode, the heating is performed while the damper 350 is closed in order to increase the thermal efficiency of the heater. As a result, the air flow between the electric chamber 3 and the cooking chamber 2 is blocked.

In addition, even when the microwave is operated and the alternating heating is performed after the heater is driven in the combination mode, the damper 350 is heated as it is in the closed state. At this time, when the heating proceeds in the microwave mode, the moisture of the food is excessively generated. However, since the damper 350 is in a closed state, the inflow of wind into the cooking chamber 2 is blocked. As a result, the excessive moisture generated in the interior can not escape to the outside.

Therefore, the present invention drives the convection fan 90 in the microwave mode operation after the heater mode in the alternating heating of the combination mode. Moisture generated inside the cooking chamber 2 by the drive of the convection fan 90 is discharged to the outside through the upper plate of the convection microwave oven. As a result, moisture generated in the cooking chamber may be removed.

4 is an operation control flowchart for removing moisture generated in the refrigerator during the cooking of the convection microwave oven according to the present invention.

First, the operation mode of the convection microwave oven is selected. In order to select an operation mode, an operation mode selection signal is input through a keypad (not shown) configured in front of the convection microwave oven main body (step 200).

When the operation mode input in step 200 is a combination mode, the heater heating and the microwave heating are performed by alternating heating as in the prior art (step 210). That is, in the process of alternating heating according to the combination mode, the damper 350 maintains the closed state in the heater mode. The damper 350 is closed because the heater heating requires a very high temperature so that the air inlet is blocked using the damper 350 so that the heat inside the cooking chamber 2 does not go out. In addition, in the heater mode, the electric room fan 80 and the convection fan 90 are driven. The heat generated in the electric chamber 3 is cooled by driving the electric chamber fan 80. In addition, the air is circulated from the inside of the cooking chamber 2 to the outside by driving the convection fan 90.

When the heater mode operation according to the combination mode elapses for a predetermined time, the heater mode is alternately heated in the microwave mode according to the combination mode. At this time, even in the microwave mode, the damper 350 remains closed. In addition, in the microwave mode, the heat generated in the electric chamber 3 is cooled by driving the electric chamber fan 80. At this time, the cooking chamber 2 begins to generate moisture from the food due to the irradiation of the microwave. However, since the damper 350 maintains a closed state, air is not flowed between the electric compartment 3 and the cooking compartment 2, and moisture is not removed.

As the alternating heating of the heater and the microwave according to the combination mode proceeds as described above, the amount of moisture generated in the cooking chamber is continuously increased in the microwave mode.

As described above, it is detected whether alternating heating of the heater and the microwave according to the combination mode has elapsed more than 5 minutes of operation time (step 220). At this time, if 5 minutes have not elapsed, alternating heating according to the previous combination mode, that is, operation control of step 210 is continued.

On the other hand, when the alternating heating according to the combination mode is heated for 5 minutes or more, excessive moisture is generated in the cooking chamber 2. Therefore, an operation control process for removing moisture in the cooking chamber 2 in the combination mode is required.

The heating is continued in the combination mode, and the controller checks whether the remaining time until the end is 1 minute (step 230).

If the control unit 300 determines that 1 minute is left until the alternate heating according to the combination mode is completed, the control unit 300 simultaneously performs the microwave mode and the heater mode to maximize the heating) (step 240).

That is, the microwave is irradiated to the inside of the cooking chamber, and at the same time, the heater heat is output. At this time, the damper 350 for controlling the flow of air between the electric chamber 3 and the cooking chamber 2 maintains the closed state. The damper 350 is closed because the heater heating requires a very high temperature so that the air inlet is blocked using the damper 350 so that the heat inside the cooking chamber 2 does not go out.

At the same time, the electric room fan 80 and the convection fan 90 are driven. The heat generated in the electric chamber 3 is cooled by driving the electric chamber fan 80. In addition, the air is circulated from the inside of the cooking chamber 2 to the outside by driving the convection fan 90.

At this time, the cooking chamber 2 is excessively generated from the food due to the irradiation of the microwave. However, the through hole of the intake port formed so that the wind enters the cooking chamber 2 from the electric compartment 3 is blocked by the damper 350. That is, by keeping the damper 350 closed, air does not flow between the electric chamber 3 and the cooking chamber 2, and moisture is formed.

However, according to the present invention, during the maximum heating of the 240th step, the convection pan 90 is driven so that the moisture generated inside the cooking chamber passes through the exhaust port 9 formed on the upper plate 7 of the convection microwave oven. Discharged. Therefore, the moisture generated in the cooking chamber 2 can be removed.

As described above, in operation 240, the maximum heating according to the combination mode is performed for one minute until the cooking is completed, and then ends.

As described above, the present invention, by controlling the damper for controlling the inflow of wind from the battle room to the cavity not only in the heater mode during the alternating heating in the combination mode, but also in the microwave mode, it occurs in the interior in the combination mode It is a basic technical idea to remove excessive moisture.

Those skilled in the art will appreciate that various changes and modifications can be made without departing from the spirit of the present invention. Therefore, the technical scope of the present invention should not be limited to the contents described in the detailed description of the specification but should be defined by the claims.

Due to the moisture removal method of the convection microwave oven according to the present invention can be expected the following effects.

In the combination mode of the convection microwave oven, when the heater heating is performed during alternating heating of the heater and the microwave, the damper for controlling the inflow of air between the electric compartment and the cooking compartment is kept closed in order to increase the heating efficiency of the heater. Then, even when alternating heating is performed in the microwave mode, the damper remains closed. At this time, when heating in the microwave mode, the moisture is excessively generated from the food, the damper is maintained in the closed state in the same manner as the heater mode. As a result, air does not flow into the cooking chamber from the electric compartment, and excessive moisture generated in the cooking chamber is generated.

In order to remove moisture generated in the cooking chamber, the present invention drives the convection fan during microwave heating in the combination mode. As a result, the air flow is formed in the exhaust port formed in the upper plate of the convection microwave oven in the cooking chamber by driving the convection fan to remove moisture generated in the cooking chamber.

Claims (1)

In combination mode of the convection microwave oven, When heating the heater, the electric fan and the convection fan are driven with the damper closed to block the airflow between the electric compartment and the cooking compartment.When the microwave is heated, the electric fan is operated while the damper is closed. An alternating heating control step of controlling the alternating heating by stopping the alternating heating; A time checking step of determining whether or not the alternating heating step is a predetermined time (1 minute) before the end of cooking, after a predetermined time (5 minutes); If it is determined that the cooking process is finished before a predetermined time (1 minute), the electric compartment fan and the convection fan are driven with the damper closed to heat the heater and the magnetron at the same time and shut off the airflow between the electric compartment and the cooking compartment. Method of removing moisture of the convection microwave oven comprising a maximum heating control step of controlling the moisture generated in the discharge to the outside.

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