KR0153486B1 - Method for controlling the temperature for a rice cooker - Google Patents
Method for controlling the temperature for a rice cookerInfo
- Publication number
- KR0153486B1 KR0153486B1 KR1019950008479A KR19950008479A KR0153486B1 KR 0153486 B1 KR0153486 B1 KR 0153486B1 KR 1019950008479 A KR1019950008479 A KR 1019950008479A KR 19950008479 A KR19950008479 A KR 19950008479A KR 0153486 B1 KR0153486 B1 KR 0153486B1
- Authority
- KR
- South Korea
- Prior art keywords
- temperature
- insulation
- heater
- internal temperature
- heating
- Prior art date
Links
- 235000007164 Oryza sativa Nutrition 0.000 title claims abstract description 22
- 235000009566 rice Nutrition 0.000 title claims abstract description 22
- 238000000034 method Methods 0.000 title claims abstract description 17
- 240000007594 Oryza sativa Species 0.000 title claims 2
- 238000009413 insulation Methods 0.000 claims abstract description 28
- 238000010792 warming Methods 0.000 claims abstract description 26
- 238000010411 cooking Methods 0.000 claims abstract description 24
- 238000010438 heat treatment Methods 0.000 claims abstract description 17
- 241000209094 Oryza Species 0.000 abstract description 20
- 238000001514 detection method Methods 0.000 abstract 1
- 230000035622 drinking Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 8
- 230000007423 decrease Effects 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
Classifications
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J36/00—Parts, details or accessories of cooking-vessels
- A47J36/32—Time-controlled igniting mechanisms or alarm devices
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J27/00—Cooking-vessels
- A47J27/004—Cooking-vessels with integral electrical heating means
-
- 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
- H05B1/00—Details of electric heating devices
- H05B1/02—Automatic switching arrangements specially adapted to apparatus ; Control of heating devices
- H05B1/0227—Applications
- H05B1/0252—Domestic applications
- H05B1/0258—For cooking
- H05B1/0261—For cooking of food
Landscapes
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Cookers (AREA)
Abstract
본 발명은 전기 보온 밥솥의 내부온도가 취식등으로 인하여 적정 보온온도보다 훨씬 낮게 떨어질 때 취사용의 히터를 가열시켜 적정 보온온도에 빠른 시간 내에 도달할 수 있게 한 전기 보온 밥솥의 보온 제어방법에 관한 것으로, 종래의 전기 보온 밥솥에 있어서는 취식등으로 인하여 내부온도가 급격히 떨어진 경우에 보온용의 히터 가열에 의해 적정 보온온도에 도달하게 하므로 긴 시간이 소요되어 밥의 품질이 저하되는 결함이 있었다. 이러한 점을 감안하여, 전기 보온 밥솥의 내부온도가 하한 보온 온도보다 낮게 떨어지는가를 감지하고, 그 감지시에 내부온도가 적정 보온온도에 도달할 때까지 취사용의 히터를 일정주기로 부분 가열함으로써 적정 보온온도에 빠른 시간 내에 도달하여 밥의 품질을 향상시킬 수 있게 한 것이다.The present invention relates to a method of controlling the insulation of an electric insulation rice cooker which can reach the proper insulation temperature within a short time by heating the cooking heater when the internal temperature of the electric insulation rice cooker falls far lower than the proper insulation temperature due to drinking. In the conventional electric insulation rice cooker, when the internal temperature is drastically dropped due to intake, etc., the heater keeps the proper warming temperature by heating the heater for warming, so it takes a long time and the quality of the rice is deteriorated. In view of this, it is detected whether the internal temperature of the electric thermal cooker falls below the lower limit thermal insulation temperature, and at the time of detection, the heating temperature for cooking is partially heated until the internal temperature reaches the proper thermal insulation temperature. To reach a short time to improve the quality of the rice.
Description
제1도는 종래 보온중 취식시의 내부온도 변화 설명도.1 is an explanatory diagram of the change in the internal temperature at the time of eating during conventional warming.
제2도는 본 발명 전기 보온밥솥의 보온 제어방법이 적용되는 전기 보온밥솥의 제어 회로도.Figure 2 is a control circuit diagram of the electric thermal rice cooker to which the thermal insulation control method of the electric thermal rice cooker of the present invention is applied.
제3도는 본 발명의 방법에 따른 취식시 보온 및 급속 가열 설명도.3 is an explanatory diagram of warming and rapid heating during eating according to the method of the present invention.
제4도는 본 발명의 방법에 따른 보온중 취식시의 내부온도 변화 설명도.Figure 4 is an explanatory diagram of the change in the internal temperature during intake during warming according to the method of the present invention.
제5도는 본 발명이 방법에 따른 제어 흐름도.5 is a control flowchart according to the method of the present invention.
* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings
1 : 마이콤 2 : 하측 온도센서1: Micom 2: Lower temperature sensor
RY1: 취사용 구동 릴레이 TR1: 보온용 구동 트라이악RY 1 : Induction driving relay TR 1 : Insulation drive triac
TH1: 상측 히터 SH1, SH2: 측면 히터TH 1 : upper heater SH 1 , SH 2 : side heater
BH1, BH2: 하측 히터BH 1 , BH 2 : Lower heater
본 발명은 전기 보온 밥솥의 보온 제어방법에 관한 것으로, 특히 밥의 보온시 취식에 따른 온도하락을 검출하고, 그 보온온도를 적정 수준까지 빠른 시간 내에 높혀 밥의 품질을 향상시키 수 있게 한 전기 보온 밥솥의 보온 제어방법에 관한 것이다.The present invention relates to a method for controlling the insulation of an electric thermal cooker, in particular, to detect the temperature drop in accordance with eating when warming the rice, and to increase the temperature to a suitable level within a short time to improve the quality of the rice electrical insulation It relates to a method of controlling heat of the rice cooker.
일반적으로 전기 보온 밥솥에 있어서는 밥을 골고루 양호한 상태로 보존하기 위하여 보온 밥솥의 상측에 설치된 상측 히터(Top Heater), 보온 밥솥의 하측에 설치된 하측 히터(Bottom Heater) 및 보온 밥솥의 측면에 설치된 측면 히터(Side Heater)를 적당한 소비전력으로 가열시켜 보온하게 되어 있다.In general, in the case of electric insulation rice cooker, in order to keep rice evenly in good condition, the top heater installed on the upper side of the rice cooker, the bottom heater installed on the bottom side of the rice cooker and the side heater installed on the side of the rice cooker. (Side Heater) is heated to moderate power consumption to keep warm.
제1도는 종래 보온중 취식시의 내부온도 변화 설명도로서, 이에 도시된 바와 같이 전기 보온 밥솥이 보온온도는 소정온도(일예로, 74.5℃)로 일정하게 유지되는데, 취식을 위해 전기 보온 밥솥의 뚜껑을 열게 되면 그 보온온도가 급격히 떨어지게 된다.1 is a diagram illustrating the change in the internal temperature of the conventional cooking during warming, as shown in the electric warming rice cooker is maintained at a predetermined temperature (for example, 74.5 ℃) constant temperature, for example, Opening the lid will drastically reduce its temperature.
따라서, 취식 후 뚜껑을 닫게 되면, 상기의 설명에서와 같이 상측 히터, 하측 히터 및 측면 히터를 적당한 소비전력으로 가열시키게 되므로 그 보온온도가 적정온도에 도달하는데 1~2시간의 긴 시간이 소요되고, 이와 같은 긴 시간동안 밥 내부의 온도변화에 따라 밥의 품질이 저하되는 문제점이 있었다.Therefore, when the lid is closed after eating, the upper heater, the lower heater and the side heater is heated at a moderate power consumption as described above, so that the warming temperature takes a long time of 1-2 hours to reach the proper temperature. For such a long time, there was a problem that the quality of the rice is deteriorated by the temperature change inside the rice.
본 발명은 상기와 같은 문제점을 감안하여, 전기 밥솥의 내부온도가 취식에 따라 급격히 떨어짐을 감지하고, 그 감지시에 하측 히터를 취사용으로 순간 가열하며 보온온도가 적정온도(일예로 74.5℃)에 빠르게 도달하게 함으로써 밥의 품질을 향상시킬 수 있게 창안한 것으로, 이를 첨부된 도면을 참조하여 상세히 설명하면 다음과 같다.In view of the above problems, the present invention detects a sharp drop in the internal temperature of an electric cooker as a result of intake, and upon detecting the instantaneous heating by using a lower heater, the warming temperature is at an appropriate temperature (for example, 74.5 ° C.). Invented to improve the quality of the rice by making it reach quickly, described in detail with reference to the accompanying drawings as follows.
제2도는 본 발명 전기 보온 밥솥의 보온 제어방법이 적용되는 전기 보온 밥솥의 제어 회로도로서, 이에 도시한 바와 같이 전기 보온 밥솥의 하측 온도를 감지하는 하측 온도센서(2)와, 보온기능 선택시에 보온제어신호(CS1)를 출력하고, 상기 하측 온도센서(2) 및 저항(R1)의 접속점에 나타나는 전압(Vin)을 입력받아 그 전압(Vin)에 따른 온도가 적정보온온도 이하로 떨어짐을 판별하여 취사 제어신호(CS2)를 출력하는 마이콤(1)과, 상기 마이콤(1)의 보온 제어신호(CS1)에 의해 트랜지스터(Q1)가 도통되는 보온구동부(11) 및 그 보온구동부(11)의 트랜지스터(Q1)의 도통에 의해 도통되어 상측 히터(TH1), 측면 히터(SH1, SH2) 및 하측 히터(BH1, BH2)를 보온용으로 가열시키는 보온용 구동 트라이악(TR1)과, 상기 마이콤(1)의 취사 제어신호(CS2)에 의해 트랜지스터(Q2)가 도통되는 취사구동부(12) 및 그 취사구동부(12)의 트랜지스터(Q2) 도통에 의해 구동하여 상기 하측 히터(BH1, BH2)를 취사용으로 가열시키는 취사용 구동 릴레이(RY1)로 구성한 것으로, 도면의 설명중 미설명 부호 AC는 교류전원이고, RL1은 릴레이(RY1)이 코일이며, RS1은 릴레이(RY1)의 스위치이고, 3은 교류전원(AC)을 입력받아 직류전원(VCC, VRL)을 공급하는 전원부이며, R2-R4는 저항이고, D1은 다이오드이다.FIG. 2 is a control circuit diagram of an electric heat cooker to which the heat insulation control method of the electric heat cooker of the present invention is applied, and as shown therein, a lower temperature sensor 2 for detecting a lower temperature of the electric heat cooker, and at the time of selecting a heat insulation function. Outputs the thermal control signal CS 1 , receives the voltage Vin at the connection point between the lower temperature sensor 2 and the resistor R1, and indicates that the temperature corresponding to the voltage Vin falls below the red information temperature. The microcomputer 1 for discriminating and outputting the cooking control signal CS 2 , the thermal insulation driving unit 11 to which the transistor Q1 is conducted by the thermal control signal CS 1 of the microcomputer 1, and the thermal driving unit ( Insulation drive triac which is turned on by the conduction of transistor Q1 of 11) to heat the upper heater TH 1 , the side heaters SH 1 , SH 2 and the lower heaters BH 1 , BH 2 for thermal insulation. The transistor Q2 by the TR 1 and the cooking control signal CS 2 of the microcomputer 1; ) Is composed of a cooking drive relay RY 1 which is driven by conduction of the cooking driver 12 and the transistor Q2 of the cooking driver 12 to conduct the heating to the lower heaters BH 1 and BH 2 for cooking. In the description of the drawings, reference numeral AC is an AC power source, RL 1 is a relay RY 1 is a coil, RS 1 is a switch of a relay RY 1 , and 3 is an AC power source. A power supply unit for supplying power supplies VCC and V RL , R2-R4 is a resistor, and D1 is a diode.
제3도는 본 발명의 방법에 따른 취식시 보온 및 급속가열 설명도이고, 제4도는 본 발명의 방법에 따른 보온중 취식시의 내부온도 변화설명도이며, 제5도는 본 발명의 방법에 따른 제어 흐름도로서, 제3도 내지 제5도를 참조하여 본 발명의 작용효과를 상세히 설명한 다음과 같다.3 is an explanatory diagram of warming and rapid heating during eating according to the method of the present invention, and FIG. 4 is an explanatory diagram of changing internal temperature during eating during warming according to the method of the present invention, and FIG. 5 is a control according to the method of the present invention. As a flow chart, the effects of the present invention are described in detail with reference to FIGS. 3 to 5 as follows.
교류전원(AC)이 공급되면, 그 교류전원(AC)을 입력받은 전원부(3)에서 직류전원(VCC, VRL)이 공급된다. 이에따라 그 직류전원(VCC)은 주위온도에 따라 저항값이 변하는 하측온도센서(2)의 저항(Rth이라 함)값 및 저항(R1)값에 의해 분압되어, 그 분압된 전압(Vin)이 온도신호값으로 마이콤(1)에 입력된다. 따라서 그 마이콤(1)은 전압(Vin)으로 부터 온도를 검출할 수 있게된다. 따라서 그 마이콤(1)은 보온기능이 선택되면 상기와 같이 검출되는 온도가 보온유지온도보다 낮을 때 고전위의 보온제어신호(CS1)를 출력하고, 이 고전위의 보온제어신호(CS1)가 보온구동부(11)의 저항(R2)을 통해 트랜지스터(Q1)의 베이스에 인가되어, 그 트랜지스터(Q1)가 도통되므로 트라이악(TR1)이 도통되고, 이에 따라 그 트라이악(TR1)을 통한 교류전원(AC)이 상측 히터(TH1) 및 측면 히터(SH1)를 통함과 아울러 측면 히터(SH2)를 통하고, 다시 하측 히터(BH1, BH2)를 통하게 되므로, 그 상측 히터(TH1), 측면 히터(SH1, SH2)및 하측 히터(BH1, BH2,)가 보온 소비전력(약 80W)으로 가열되어, 제3도와 같이 적정 보온온도(약 74.5℃)를 유지하게 된다.When the AC power source AC is supplied, the DC power sources VCC and V RL are supplied from the power supply unit 3 that receives the AC power source AC. Accordingly, the DC power supply VCC is divided by the resistance (referred to as Rth) value and the resistance R1 value of the lower temperature sensor 2 whose resistance value changes depending on the ambient temperature, and the divided voltage Vin It is input to the microcomputer 1 as a signal value. Therefore, the microcomputer 1 can detect the temperature from the voltage Vin. Therefore, when the temperature keeping function is selected, the microcomputer 1 outputs a high potential heat control signal CS1 when the temperature detected as described above is lower than the heat keeping temperature, and the heat control signal CS1 at high potential keeps warm. It is applied to the base of the transistor Q1 through the resistor R2 of the driving unit 11, so that the transistor Q1 is conducted so that the triac TR 1 is conducted, and thus through the triac TR 1 . Since the AC power source AC passes through the upper heater TH 1 and the side heater SH 1 , and also through the side heater SH 2 , again through the lower heaters BH 1 and BH 2 , the upper heater (TH 1 ), the side heaters (SH 1 , SH 2 ) and the lower heaters (BH 1 , BH 2 ,) are heated to the thermal power consumption (approximately 80 W), so as to adjust the proper thermal temperature (approximately 74.5 ° C.) as shown in FIG. Will be maintained.
이때 전기 보온밥솥의 내부온도가 상기에서와 같이 하측 온도센서(2)에서 감지되어 마이콤(1)에 입력되므로, 그 마이콤(1)에서 적정 보온온도임을 판별할 수 있게 된다.At this time, since the internal temperature of the electric thermal cooker is sensed by the lower temperature sensor 2 as described above and input to the microcomputer 1, it is possible to determine the proper thermal insulation temperature in the microcomputer (1).
이와 같은 상태에서 취식등의 원인으로 인하여 전기 보온 밥솥의 내부온도가 급격히 내려가면, 하측 온도센서(2)에서 감지되어 마이콤(1)에 입력되는 전압(Vin)에 따른 내부온도 값이 내려가므로 그에 따른 제어를 수행하게 된다. 즉, 이때 내부온도가 적정 보온온도보다 소정값 아래인 온도(일예로, 70℃) 아래로 떨어질 때, 그 마이콤(1)에서 제3도에서와 같이 소정주기의 취사 제어신호(CS2)를 출력하고, 이에 따라 그 취사 제어신호(CS2)가 고전위 구간일 때 취사구동부(12)의 트랜지스터(Q2)가 도통되므로, 릴레이(RY1)가 구동되어 그의 스위치(RS1)가 단락되고, 취사 제어신호(CS2)가 저전위 구간일 때 취사구동부(12)의 트랜지스터(Q2)가 오프되므로, 릴레이(RY1)가 구동되지 않아 그의 스위치(RS1)가 개방된다. 여기서 취사 제어신호(CS2)의 고전위 구간은 4초이고, 저전위 구간은 12초로 되어, 그의 듀티비가 4/16로 된다.In this state, if the internal temperature of the electric warming cooker drops sharply due to the cause of eating, etc., the internal temperature value according to the voltage Vin detected by the lower temperature sensor 2 and input to the microcomputer 1 decreases. Control will be performed. That is, at this time, when the internal temperature falls below a predetermined value (for example, 70 ° C.) below the proper warming temperature, the microcomputer 1 generates the cooking control signal CS 2 at a predetermined cycle as shown in FIG. 3. When the cooking control signal CS 2 is in the high potential section, the transistor Q2 of the cooking driving unit 12 is turned on, so that the relay RY 1 is driven to short-circuit its switch RS 1 . Since the transistor Q2 of the cooking driver 12 is turned off when the cooking control signal CS 2 is in the low potential section, the relay RY 1 is not driven and the switch RS 1 is opened. Here, the high potential section of the cooking control signal CS 2 is 4 seconds, the low potential section is 12 seconds, and the duty ratio thereof is 4/16.
따라서, 릴레이(RY1)의 스위치(RS1)가 단락되는 4초 동안은 하측 히터(BH1, BH2)에 교류전원(AC)이 공급되어 취사 가열하고, 릴레이(RY1)의 스위치(RS1)가 개방되는 12초 동안은 하측 히터(BH1, BH2)에 교류전원(AC)이 공급이 차단되어 취사가열이 중지되며, 이와 같이 하측 히터(BH1, BH2)가 소정 주기로 취사 가열되므로, 전기 보온 밥솥의 내부온도가 제3도에서와 같이 급격히 상승하게 된다.Therefore, the AC power source AC is supplied to the lower heaters BH 1 and BH 2 for heating for 4 seconds during which the switch RS 1 of the relay RY 1 is short-circuited, thereby heating the switch RY 1 . During the 12 seconds when RS 1 ) is opened, the supply of AC power to the lower heaters BH 1 and BH 2 is cut off and the cooking heat is stopped. Thus, the lower heaters BH 1 and BH 2 are periodically Since the cooking is heated, the internal temperature of the electric thermal cooker rapidly rises as shown in FIG.
결국, 취사 후 뚜껑을 닫게 되면, 전기 보온 밥솥의 내부온도가 제4도와 같이 빠르게 상승하여, 짧은 시간(약 15분) 내에 적정 보온온도에 도달하게 된다.As a result, when the lid is closed after cooking, the internal temperature of the electric warm cooker rises rapidly as shown in FIG. 4, and reaches a proper warm temperature in a short time (about 15 minutes).
이상에서 설명한 제어과정을 제5도의 흐름도에 의해 설명하면, 마이콤(1)에서 내부온도가 적정 보온온도(일예로, 74.5℃) 보다 높은가를 판별하여, 높은 경우에는 보온용의 상측 히터(TH1) 및 측면 히터(SH1, SH2)의 가열을 중지시키고, 낮은 경우에는 내부온도가 하한 보온온도(일예로, 70℃)보다 높은가를 다시 판별하여, 이때 내부온도가 하한 보온온도보다 높은 경우에는 상기 보온용의 상측 히터(TH1) 및 측면 히터(SH1, SH2)를 가열시키고, 내부온도가 하한 보온온도보다 낮은 경우에는 급속 가열공정을 수행한다. 즉, 취사용의 하측 히터(BH1, BH2)를 부분 가열하고, 이 취사용의 하측 히터(BH1, BH2)의 부분 가열을 내부온도가 상기 적정 보온온도에 도달할 때까지 수행한 후 상기 내부온도가 적정 보온온도보다 높은가를 판별하는 단계로 되돌아가 보온공정을 수행하게 된다.Case, the control process described above described by a fifth-degree flow chart, to determine the nopeunga than the microprocessor (1), the internal temperature adequate insulation temperature (as an example, 74.5 ℃) in, is high, the upper heater for thermal insulation (TH 1 ) And the heating of the side heaters (SH 1 , SH 2 ) are stopped, and if it is low, the internal temperature is again determined to be higher than the lower limit warming temperature (for example, 70 ° C.), and the inner temperature is higher than the lower limit warming temperature. The upper heater TH 1 and the side heaters SH 1 and SH 2 for warming are heated, and if the internal temperature is lower than the lower limit warming temperature, a rapid heating process is performed. That is, after heating the lower heater (BH 1, BH 2) of the cooking area, and performing a partial heating of the lower heater (BH 1, BH 2) of the cooking until the internal temperature reaches the proper thermal insulation temperature of the Returning to the step of determining whether the internal temperature is higher than the proper warming temperature, the warming process is performed.
이상에서 상세히 설명한 바와 같이 본 발명은 취식등으로 인하여 전기 보온 밥솥의 내부온도가 하한 보온온도보다 떨어진 경우에 취사용의 히터를 가열시켜 그 내부온도가 적정 보온온도에 빠르게 도달되게 한 후 적정 보온온도로 유지시키므로 밥의 품질을 향상시키는 효과가 있게 된다.As described in detail above, the present invention heats the heater for cooking when the internal temperature of the electric warming cooker is lower than the lower limit of the warming temperature due to cooking, so that the inner temperature reaches the proper warming temperature quickly, and then the proper warming temperature. It is effective in improving the quality of rice.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019950008479A KR0153486B1 (en) | 1995-04-12 | 1995-04-12 | Method for controlling the temperature for a rice cooker |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019950008479A KR0153486B1 (en) | 1995-04-12 | 1995-04-12 | Method for controlling the temperature for a rice cooker |
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| Publication Number | Publication Date |
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| KR960036998A KR960036998A (en) | 1996-11-19 |
| KR0153486B1 true KR0153486B1 (en) | 1998-10-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| KR1019950008479A KR0153486B1 (en) | 1995-04-12 | 1995-04-12 | Method for controlling the temperature for a rice cooker |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20020096417A (en) * | 2001-06-19 | 2002-12-31 | 주식회사 엘지이아이 | heat control method of electric rice cooker |
| KR20180024492A (en) | 2016-08-30 | 2018-03-08 | 주식회사 대유위니아 | Method For Controlling Heat Of Electric Cooker |
| KR20180024493A (en) | 2016-08-30 | 2018-03-08 | 주식회사 대유위니아 | Method For Controlling Heat Of Electric Cooker |
-
1995
- 1995-04-12 KR KR1019950008479A patent/KR0153486B1/en not_active IP Right Cessation
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20020096417A (en) * | 2001-06-19 | 2002-12-31 | 주식회사 엘지이아이 | heat control method of electric rice cooker |
| KR20180024492A (en) | 2016-08-30 | 2018-03-08 | 주식회사 대유위니아 | Method For Controlling Heat Of Electric Cooker |
| KR20180024493A (en) | 2016-08-30 | 2018-03-08 | 주식회사 대유위니아 | Method For Controlling Heat Of Electric Cooker |
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| Publication number | Publication date |
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| KR960036998A (en) | 1996-11-19 |
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