KR20000009942A - Convection cooking control method of microwave oven - Google Patents
Convection cooking control method of microwave oven Download PDFInfo
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- KR20000009942A KR20000009942A KR1019980030629A KR19980030629A KR20000009942A KR 20000009942 A KR20000009942 A KR 20000009942A KR 1019980030629 A KR1019980030629 A KR 1019980030629A KR 19980030629 A KR19980030629 A KR 19980030629A KR 20000009942 A KR20000009942 A KR 20000009942A
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- 238000010411 cooking Methods 0.000 title claims abstract description 116
- 238000000034 method Methods 0.000 title claims abstract description 19
- 238000010438 heat treatment Methods 0.000 claims abstract description 13
- 238000001816 cooling Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B6/00—Heating by electric, magnetic or electromagnetic fields
- H05B6/64—Heating using microwaves
- H05B6/647—Aspects related to microwave heating combined with other heating techniques
- H05B6/6482—Aspects related to microwave heating combined with other heating techniques combined with radiant heating, e.g. infrared heating
- H05B6/6485—Aspects related to microwave heating combined with other heating techniques combined with radiant heating, e.g. infrared heating further combined with convection heating
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B6/00—Heating by electric, magnetic or electromagnetic fields
- H05B6/64—Heating using microwaves
- H05B6/6447—Method of operation or details of the microwave heating apparatus related to the use of detectors or sensors
- H05B6/645—Method of operation or details of the microwave heating apparatus related to the use of detectors or sensors using temperature sensors
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Abstract
Description
본 발명은 전자렌지의 컨벡션조리 제어방법에 관한 것으로, 상세하게는 그릴히터와 컨벡션히더가 구비된 전자렌지에서 컨벡션 조리를 할 때 그릴히터와 컨벡션히터를 동시에 구동시켜 조리를 하는 전자렌지의 컨벡션조리 제어방법에 관한 것이다.The present invention relates to a method for controlling convection cooking of a microwave oven, and more particularly, to convection cooking of a microwave oven, which is operated by simultaneously operating a grill heater and a convection heater when the convection cooking is performed in a microwave oven equipped with a grill heater and a convection heater. It relates to a control method.
일반적으로 전자렌지는 열전도 및 열복사등을 이용한 종래의 외부 가열방식의 조리 기구와는 달리 마그네트론이라는 초고주파 발진관에 고압전기를 가하여 2450㎒의 초고주파를 발진시켜, 발진된 초고주파를 전자렌지 조리실 내부로 방사하여 음식물에 함유된 수분의 분자배열을 반복 변환시킴으로써 분자들간의 마찰열에 의하여 음식물을 조리하는 기구이다. 또한 전자렌지는 컨벡션히터와 그릴히터등을 구비하여 조리를 하기도 한다.In general, microwave ovens, unlike conventional cookware of external heating method using heat conduction and heat radiation, apply high voltage electricity to an ultra-high frequency oscillator tube called magnetron to oscillate 2450MHz ultra-high frequency and radiate the oscillated ultra-high frequency into the microwave cooking chamber. It is a mechanism for cooking food by frictional heat between molecules by repeatedly converting the molecular arrangement of the moisture contained in the food. In addition, a microwave oven is equipped with a convection heater and a grill heater to cook.
도 1은 종래의 전자렌지의 컨벡션조리 제어방법의 제어 흐름도이다.1 is a control flowchart of a convection cooking control method of a conventional microwave oven.
종래의 전자렌지의 컨벡션조리 동작을 살펴보면 다음과 같다.Looking at the convection cooking operation of a conventional microwave oven as follows.
사용자 조리하고자 하는 음식물을 조리실내에 넣고, 입력부를 통하여 컨벡션조리를 설정을 한다(S10). 이때 온도와 조리시간등도 같이 설정된다.The food to be cooked by the user is put in the cooking chamber and the convection cooking is set through the input unit (S10). At this time, the temperature and cooking time are also set.
설정을 한 후, 조리를 시작되면 제어부는 컨벡션히터를 동작시킨다(S20). 컨벡션히터가 동작되면 조리실이 가열되는데, 이때 제어부는 온도감지부를 통하여 조리실의 온도를 감지하고, 감지된 조리실의 온도가 설정된 온도에 도달하였는지를 판단한다(S30).After setting, when cooking is started, the control unit operates the convection heater (S20). When the convection heater is operated, the cooking chamber is heated. At this time, the controller detects the temperature of the cooking chamber through the temperature sensing unit and determines whether the detected temperature of the cooking chamber reaches the set temperature (S30).
만약 판단(S30)에서 감지된 조리실의 온도가 설정된 온도에 도달하지 못했다고 판단되면 제어부는 계속적으로 컨벡션히터를 동작시킨다. 하지만 판단()에서 감지된 조리실의 온도가 설정된 온도에 도달했다고 판단되면 제어부는 컨벡션히터를 오프시킨다(S40).If it is determined in the determination (S30) that the detected temperature of the cooking chamber does not reach the set temperature, the controller continuously operates the convection heater. However, if it is determined in the determination () that the detected temperature of the cooking chamber has reached the set temperature, the control unit turns off the convection heater (S40).
컨벡션히터가 오프되면 제어부는 타이머를 통하여 조리시간이 종료하여 조리가 완료되었는지를 판단한다(S50).When the convection heater is off, the controller determines whether cooking is completed by ending the cooking time through a timer (S50).
만약 판단(S50)에서 조리시간이 종료하지 않아서 조리가 완료되지 않았다고 판단되면 제어부는 일단 조리실의 온도가 설정된 온도에 도달했으므로 소정시간을 지연시킨다(S60). 그리고 나서 조리실의 온도가 낮아지면 제어부는 다시 컨벡션히터를 동작시킨다. 전술한 동작은 설정된 조리시간이 종료할 때까지 반복하여 이루어진다.If it is determined in the determination S50 that the cooking time is not finished because the cooking time is not finished, the control unit once delays the predetermined time since the temperature of the cooking chamber reaches the set temperature (S60). Then, when the temperature of the cooking chamber decreases, the control unit operates the convection heater again. The above operation is repeated until the set cooking time ends.
그런데 전술한 방법에 의하여 컨벡션조리를 하면 조리를 시작한 후부터 조리실의 온도가 설정된 조리온도에 도달하는데 걸리는 시간이 길어서 전체 조리시간이 오래 걸리는 문제점이 있었다.However, when the convection cooking by the above-described method has a long time it takes a long time to reach the set cooking temperature the temperature of the cooking chamber after the start of cooking has a problem that the entire cooking time takes a long time.
본 발명은 상기한 문제를 해결하기 위하여 안출된 것으로, 그 목적은 그릴히터와 컨벡션히더가 구비된 전자렌지에서 컨벡션 조리를 할 때 그릴히터와 컨벡션히터를 동시에 구동시켜 조리를 함으로서 조리온도에 도달하는 시간을 단축시켜 전체 조리시간을 줄일 수 있는 전자렌지의 컨벡션조리 제어방법을 제공하고자 하는 것이다.The present invention has been made to solve the above problems, the object is to reach the cooking temperature by driving the grill heater and the convection heater at the same time when cooking the convection cooking in a microwave oven equipped with the grill heater and the convection heater. It is to provide a convection cooking control method of a microwave oven that can reduce the overall cooking time by reducing the time.
도 1은 종래의 전자렌지의 컨벡션조리 제어방법의 제어 흐름도이다.1 is a control flowchart of a convection cooking control method of a conventional microwave oven.
도 2는 본 발명에 따른 전자렌지의 블럭도이다.2 is a block diagram of a microwave oven according to the present invention.
도 3은 본 발명에 따른 전자렌지의 컨벡션조리 제어방법의 제어 흐름도이다.3 is a control flowchart of a convection cooking control method of a microwave oven according to the present invention.
도 4는 종래에 대비한 본 발명에 따른 전자렌지의 컨벡션조리 제어방법에 의한 조리실 온도의 그래프이다.Figure 4 is a graph of the cooking chamber temperature by the convection cooking control method of the microwave oven according to the present invention as compared to the prior art.
* 도면의 주요 부분에 대한 부호의 설명 *Explanation of symbols on the main parts of the drawings
10:설정입력부 20:타이머10: setting input unit 20: timer
30:온도감지부 40:제어부30: temperature sensing unit 40: control unit
51:그릴모터구동부 52:그릴모터51: grill motor drive unit 52: grill motor
61:그릴히터구동부 62:그릴히터61: grill heater drive section 62: grill heater
71:컨벡션모터구동부 72:컨벡션모터71: convection motor drive unit 72: convection motor
81:컨벡션히터구동부 82:컨벡션히터81: convection heater drive unit 82: convection heater
91:마그네트론구동부 92:마그네트론91: magnetron drive part 92: magnetron
101:팬모터구동부 102:팬모터101: fan motor drive unit 102: fan motor
상기한 목적을 실현하기 위한 본 발명에 따른 전자렌지의 컨벡션조리 제어방법은, 그릴히터와 컨벡션히터를 구비하는 전자렌지의 컨벡션조리 제어방법에 있어서, 컨벡션조리의 조리 온도를 설정하는 설정단계, 설정단계 후 컨벡션조리가 시작되면 컨벡션히터와 그릴히터를 동시에 구동시켜 전자렌지의 조리실을 조리온도까지 가열하는 초기가열단계, 초기가열단계에서 조리실의 온도가 설정된 조리 온도에 도달했다고 판단되면 그릴히터와 컨벡션히터를 오프시키는 히터오프단계, 히터오프단계 후 조리실의 온도가 설정된 조리 온도보다 낮아지면 컨벡션히터와 그릴히터를 구동시키는 조리가열단계를 포함하는 것을 특징으로 하는 방법이다.Convection cooking control method of a microwave oven according to the present invention for achieving the above object, in the convection cooking control method of a microwave oven having a grill heater and a convection heater, a setting step of setting the cooking temperature of the convection cooking, When the convection cooking is started after the step, the convection heater and the grill heater are simultaneously driven to heat the cooking chamber of the microwave to the cooking temperature, and when the temperature of the cooking chamber reaches the set cooking temperature in the initial heating stage, the grill heater and the convection are judged. And a cooking heating step of driving the convection heater and the grill heater when the temperature of the cooking chamber becomes lower than the set cooking temperature after the heater off step of turning off the heater and the heater off step.
이하에서는 첨부한 도면을 참조하여 본 발명에 따른 양호한 실시 예를 상세하게 설명하겠다.Hereinafter, with reference to the accompanying drawings will be described in detail a preferred embodiment according to the present invention.
도 2는 본 발명에 따른 전자렌지의 블럭도이다.2 is a block diagram of a microwave oven according to the present invention.
도 3은 본 발명에 따른 전자렌지의 컨벡션조리 제어방법의 제어 흐름도이다.3 is a control flowchart of a convection cooking control method of a microwave oven according to the present invention.
도 4는 종래에 대비한 본 발명에 따른 전자렌지의 컨벡션조리 제어방법에 의한 조리실 온도의 그래프이다.Figure 4 is a graph of the cooking chamber temperature by the convection cooking control method of the microwave oven according to the present invention as compared to the prior art.
본 발명에 따른 전자렌지는, 전자렌지의 기능설정을 하기 위한 설정입력부(10)가 제어부(40)에 접속되어 있으며, 시간을 측정하기 위한 타이머(20)가 제어부(40)에 접속되어 있다. 그리고 그릴모터를 구동시키는 그릴모터구동부가 제어부(40)에 접속되어 있으며, 그릴히터(62)를 구동시키는 그릴히터구동부(61)가 제어부(40)에 접속되어 있다.In the microwave oven according to the present invention, the setting input unit 10 for setting the function of the microwave oven is connected to the control unit 40, and the timer 20 for measuring time is connected to the control unit 40. And the grill motor drive part which drives a grill motor is connected to the control part 40, and the grill heater drive part 61 which drives the grill heater 62 is connected to the control part 40. As shown in FIG.
또한 컨벡션모터(72)를 구동시키는 컨벡션모터구동부(71)가 제어부(40)에 접속되어 제어부(40)의 제어를 받는다. 또한 컨벡션히터(82)를 구동시키는 컨벡션히터구동부(81)가 제어부(40)에 접속되어 있다.In addition, the convection motor driver 71 for driving the convection motor 72 is connected to the control unit 40 and is controlled by the control unit 40. In addition, a convection heater driving unit 81 for driving the convection heater 82 is connected to the control unit 40.
그리고 마그네트론(92)을 구동시키는 마그네트론구동부(91)가 제어부(40)에 접속되어 있다. 또한 팬모터(102)를 구동시키는 팬모터구동부(101)가 제어부(40)에 접속되어 있다.And the magnetron drive part 91 which drives the magnetron 92 is connected to the control part 40. As shown in FIG. In addition, a fan motor driving unit 101 for driving the fan motor 102 is connected to the control unit 40.
본 발명에 따른 전자렌지의 컨벡션조리 제어방법을 살펴보면 다음과 같다.Looking at the convection cooking control method of the microwave oven according to the present invention.
먼저 설정입력부(10)를 통하여 전자렌지의 기능을 입력하여 설정한다. 이때 사용자는 컨벡션조리를 하기 위하여 설정입력부(10)를 통하여 컨벡션조리를 설정입력한다(S10).First, the function of the microwave is input and set through the setting input unit 10. At this time, the user sets and inputs the convection cooking through the setting input unit 10 to perform the convection cooking (S10).
설정입력부(10)를 통하여 컨벡션조리가 설정입력되면, 제어부(40)는 그릴모터구동부(51)를 제어하여 그릴모타(52)를 구동시켜 그릴히터(62)가 조리실 후면에 위치하도록 그릴히터(62)의 위치를 변경시킨다(S20).When the convection cooking is input through the setting input unit 10, the control unit 40 controls the grill motor driving unit 51 to drive the grill motor 52 so that the grill heater 62 is located at the rear of the cooking chamber. Change the position of 62) (S20).
그릴히터(62)의 위치가 조리실 후면으로 위치 변경이 되고 나면, 제어부(40)는 그릴히터구동부(61)와 컨벡션히터구동부(81)를 제어하여 그릴히터(62)와 컨벡션히터(82)를 구동시킨다(S30).After the position of the grill heater 62 is changed to the rear side of the cooking chamber, the controller 40 controls the grill heater driver 61 and the convection heater driver 81 to control the grill heater 62 and the convection heater 82. Drive (S30).
그릴히터(62)와 컨벡션히터(82)가 동시에 구동되면 컨벡션히터(82)가 단독으로 구동될 때보다 조리실이 빠르게 가열되기 때문에 컨벡션히터(82)가 단독으로 구동될 때보다 조리온도까지 가열하는 시간이 짧아진다.When the grill heater 62 and the convection heater 82 are driven at the same time, since the cooking chamber is heated faster than when the convection heater 82 is driven alone, the grill heater 62 and the convection heater 82 are heated to the cooking temperature than when the convection heater 82 is driven alone. The time gets shorter.
그릴히터(62)와 컨벡션히터(82)가 동시에 구동되면 제어부(40)는 온도감지부(30)를 조리실의 온도를 감지하여, 그 감지된 온도가 설정된 조리온도에 도달했는지를 판단한다(S40).When the grill heater 62 and the convection heater 82 are driven at the same time, the controller 40 senses the temperature of the cooking chamber by the temperature sensing unit 30, and determines whether the detected temperature reaches the set cooking temperature (S40). ).
판단(S40)에서 온도감지부(30)를 통하여 감지한 조리실의 온도가 설정된 조리온도에 도달하지 않았다고 판단되면 제어부(40)는 계속적으로 그릴히터(62)와 컨벡션히터(82)가 구동될 수 있도록 그릴히터구동부(61)와 컨벡션히터구동부(81)를 제어한다(S30).If it is determined in S40 that the temperature of the cooking chamber detected by the temperature sensing unit 30 does not reach the set cooking temperature, the control unit 40 may continuously drive the grill heater 62 and the convection heater 82. The grill heater driving unit 61 and the convection heater driving unit 81 are controlled so as to (S30).
하지만 판단(S40)에서 온도감지부(30)를 통하여 감지한 조리실의 온도가 설정된 조리온도에 도달했다고 판단되면, 제어부(40)는 그릴히터구동부(61)와 컨벡션히터구동부(81)를 제어하여 그릴히터(62)와 컨벡션히터(82)가 오프되도록 한다(S50).However, if it is determined in S40 that the temperature of the cooking chamber sensed by the temperature sensing unit 30 reaches the set cooking temperature, the controller 40 controls the grill heater driver 61 and the convection heater driver 81. The grill heater 62 and the convection heater 82 are turned off (S50).
그릴히터(62)와 컨벡션히터(82)가 오프되고 나면, 제어부(40)는 조리가 완료되었는지를 판단한다(S60). 판단(S60)에서 조리가 완료하지 않았다고 판단되면, 일단 조리실의 온도가 조리온도까지 가열되어 있는 상태이기 때문에 제어부(40)는 소정시간동안시간 지연을 시킨다(S70).After the grill heater 62 and the convection heater 82 are turned off, the controller 40 determines whether cooking is completed (S60). When it is determined in the determination S60 that the cooking is not completed, since the temperature of the cooking chamber is heated to the cooking temperature, the controller 40 makes a time delay for a predetermined time (S70).
그리고 난 후 제어부(40)는 그릴히터구동부(61)와 컨벡션히터구동부(81)를 제어하여 그릴히터(62)와 컨벡션히터(82)를 구동시킨다(S30). 이때에도 그릴히터와 컨벡션히터가 동시에 구동되기 때문에 조리온도에 도달하는 시간이 종래보다 단축시킬 수 있다.After that, the controller 40 controls the grill heater driver 61 and the convection heater driver 81 to drive the grill heater 62 and the convection heater 82 (S30). At this time, since the grill heater and the convection heater are driven at the same time, the time for reaching the cooking temperature can be shortened.
그릴히터(62)와 컨벡션히터(82)가 동시에 구동되면 제어부(40)는 온도감지부(30)를 조리실의 온도를 감지하여, 그 감지된 온도가 설정된 조리온도에 도달했는지를 판단한다(S40).When the grill heater 62 and the convection heater 82 are driven at the same time, the controller 40 senses the temperature of the cooking chamber by the temperature sensing unit 30, and determines whether the detected temperature reaches the set cooking temperature (S40). ).
판단(S40)에서 온도감지부(30)를 통하여 감지한 조리실의 온도가 설정된 조리온도에 도달하지 않았다고 판단되면 제어부(40)는 계속적으로 그릴히터(62)와 컨벡션히터(82)가 구동될 수 있도록 그릴히터구동부(61)와 컨벡션히터구동부(81)를 제어한다(S30).If it is determined in S40 that the temperature of the cooking chamber detected by the temperature sensing unit 30 does not reach the set cooking temperature, the control unit 40 may continuously drive the grill heater 62 and the convection heater 82. The grill heater driving unit 61 and the convection heater driving unit 81 are controlled so as to (S30).
하지만 판단(S40)에서 온도감지부(30)를 통하여 감지한 조리실의 온도가 설정된 조리온도에 도달했다고 판단되면, 제어부(40)는 그릴히터구동부(61)와 컨벡션히터구동부(81)를 제어하여 그릴히터(62)와 컨벡션히터(82)가 오프되도록 한다(S50).However, if it is determined in S40 that the temperature of the cooking chamber sensed by the temperature sensing unit 30 reaches the set cooking temperature, the controller 40 controls the grill heater driver 61 and the convection heater driver 81. The grill heater 62 and the convection heater 82 are turned off (S50).
그릴히터(62)와 컨벡션히터(82)가 오프되고 나면, 제어부(40)는 조리가 완료되었는지를 판단한다(S60). 판단(S60)에서 조리가 완료되었다고 판단되면 종료한다.After the grill heater 62 and the convection heater 82 are turned off, the controller 40 determines whether cooking is completed (S60). If it is determined in the determination (S60) that the cooking is completed, it ends.
전술한 내용을 한번 더 설명하면, 컨벡션조리시 컨벡션히터(82)와 그릴히터(62)를 통시에 구동을 시켜 컨벡션조리를 함으로서, 조리를 시작하여 설정된 조리온도까지 도달하는 시간(도 4 b의 T3)이 종래(도 4 a의 T1)에 비하여 ΔT만큼 단축시킬 수 있으며, 조리온도까지 가열하는데 필요한 시간 역시 종래보다 짧기 때문에 실질적으로 조리가 이루어지는 시간(도 4 b의 T4) 역시 종래(도 4 a의 T2)에 비하여 ΔT2만큼 단축시킬 수 있어서, 전체 조리시간을 줄일 수 있다.In the above description, the convection heater 82 and the grill heater 62 are driven at the time of the convection cooking to perform the convection cooking, thereby starting the cooking and reaching the set cooking temperature (see FIG. 4B). T 3 ) can be shortened by ΔT compared to the conventional (T 1 of FIG. 4A), and the time required for heating to a cooking temperature is also shorter than that of the prior art, so that the cooking time (T 4 of FIG. 4B ) is also conventional. Compared with (T 2 in FIG. 4A), it can be shortened by ΔT 2 , thereby reducing the overall cooking time.
본 발명에 따른 전자렌지의 컨벡션조리 제어방법에 의하면, 그릴히터와 컨벡션히터가 구비된 전자렌지에서, 컨벡션 조리를 할 때 그릴히터와 컨벡션히터를 동시에 구동시켜 종래보다 더 많은 히터에 의하여 컨벡션조리를 함으로서, 조리 초기가열시에 조리온도에 도달하는 시간을 단축시킬 수 있고, 조리온도에 도달한 이후 의 조리가열시에도 그릴히터와 컨벡션히터를 동시에 구동시켜 조리가 이루어지는 시간을 단축시킬 수 있으므로 전체 조리시간을 줄일 수 있다.According to the method for controlling convection cooking of a microwave oven according to the present invention, in a microwave oven equipped with a grill heater and a convection heater, when the convection cooking is performed simultaneously, the grill heater and the convection heater are driven simultaneously to make the convection cooking by more heaters than before. In this way, the time for reaching the cooking temperature can be shortened during the initial heating of the cooking, and the cooking time can be shortened by simultaneously driving the grill heater and the convection heater even during the cooking heating after the cooking temperature is reached. You can save time.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019980030629A KR20000009942A (en) | 1998-07-29 | 1998-07-29 | Convection cooking control method of microwave oven |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019980030629A KR20000009942A (en) | 1998-07-29 | 1998-07-29 | Convection cooking control method of microwave oven |
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| KR20000009942A true KR20000009942A (en) | 2000-02-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| KR1019980030629A KR20000009942A (en) | 1998-07-29 | 1998-07-29 | Convection cooking control method of microwave oven |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100432751B1 (en) * | 2002-05-14 | 2004-05-24 | 엘지전자 주식회사 | A heating temperature control method of microwave oven |
| KR100514908B1 (en) * | 2002-09-02 | 2005-09-14 | 삼성전자주식회사 | Cooking apparatus having heater |
| KR20070087908A (en) * | 2006-02-01 | 2007-08-29 | 엘지전자 주식회사 | Cooking method which uses microwave oven heater |
-
1998
- 1998-07-29 KR KR1019980030629A patent/KR20000009942A/en not_active Application Discontinuation
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100432751B1 (en) * | 2002-05-14 | 2004-05-24 | 엘지전자 주식회사 | A heating temperature control method of microwave oven |
| KR100514908B1 (en) * | 2002-09-02 | 2005-09-14 | 삼성전자주식회사 | Cooking apparatus having heater |
| KR20070087908A (en) * | 2006-02-01 | 2007-08-29 | 엘지전자 주식회사 | Cooking method which uses microwave oven heater |
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