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KR960030863A - Control circuit of electric rice cooker - Google Patents

Control circuit of electric rice cooker Download PDF

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Publication number
KR960030863A
KR960030863A KR1019950002020A KR19950002020A KR960030863A KR 960030863 A KR960030863 A KR 960030863A KR 1019950002020 A KR1019950002020 A KR 1019950002020A KR 19950002020 A KR19950002020 A KR 19950002020A KR 960030863 A KR960030863 A KR 960030863A
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KR
South Korea
Prior art keywords
voltage
rice cooker
temperature
unit
electric
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Application number
KR1019950002020A
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Korean (ko)
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KR0154450B1 (en
Inventor
이응화
Original Assignee
김광호
삼성전자 주식회사
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Priority to KR1019950002020A priority Critical patent/KR0154450B1/en
Publication of KR960030863A publication Critical patent/KR960030863A/en
Application granted granted Critical
Publication of KR0154450B1 publication Critical patent/KR0154450B1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • 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
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K13/00—Thermometers specially adapted for specific purposes
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K2207/00—Application of thermometers in household appliances
    • 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

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  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Cookers (AREA)

Abstract

본 발명은 전기 보온밥솥의 제어회로에 관한 것으로, 특히 취반에서 보온으로의 작동전환시 온도편차를 크게 하고 보온동작시 보온밥솥에 인가되는 입력전압을 감지하여 부하의 출력을 일정하게 하여 보온성능을 크게 향상시킨 전기 보온밥솥의 제어회로에 관한 것이다.The present invention relates to a control circuit of an electric thermal rice cooker, in particular, to increase the temperature deviation when switching the operation from cooking to the warmth and to detect the input voltage applied to the thermal rice cooker during the warming operation to keep the output of the load constant It relates to a control circuit of the electric thermal rice cooker greatly improved.

이와 같은 본 발명의 전기 보온밥솥의 제어회로에서는 취반기능을 수행한 다음 제어부의 제어에 의하여 상단히터 및 측면히터로 이루어진 보조히터부에 전원을 인가하여 보온기능을 수행하는 전기 보온밥솥에 있어서, 교류전원을 인가받아 직류전압으로 변환시켜 비례직류전압을 발생시키는 직류 전원부, 상기 직류 전원부에서 인가받은 전압과 상기 전원부의 전압을 하나 이상의 저항으로 분압한 기준전압을 비교하여 상기 제어부의 동작을 제어하는 상한온도조절부, 상기 전원부의 출력단 일측에 접속되어 인가받은 교류전압이 제로상태일 경우 소정신호를 출력하여 전기 보온밥솥의 온도를 일정하게 유지시키는 제로크로싱부, 상기 제어부의 제어신호에 의하여 작동되어 상기 보온히터부에 전원을 인가하는 보온동작부, 상기 제어부의 구동전압을 생성하는 구동전압발생부, 상기 전기 보온밥솥의 보온시 상기 보온히터부의 동작온도범위를 조절하는 온도편차조절부, 상기 전기 보온밥솥의 보온시 온도를 감지하여 이에 따른 신호를 상기 제어부에 출력하는 온도감지부를 구비하는 것이다.In the control circuit of the electric thermal rice cooker as described above in the electric thermal rice cooker to perform the warming function by performing the cooking function and then applying power to the auxiliary heater consisting of the upper heater and the side heater by the control of the control unit, AC A DC power supply which receives power and converts the DC voltage to generate a proportional DC voltage. An upper limit for controlling the operation of the controller by comparing a voltage applied by the DC power supply with a reference voltage obtained by dividing the voltage of the power supply by at least one resistor. Zero-crossing unit, which is connected to one side of the output terminal of the temperature control unit and the power supply unit, outputs a predetermined signal to maintain a constant temperature of the electric thermal cooker when the applied AC voltage is zero, and is operated by a control signal of the controller. Insulating operation unit for applying power to the heating heater, the drive voltage of the controller The driving voltage generating unit to generate, a temperature deviation control unit for adjusting the operating temperature range of the heating heater when the warming of the electric rice cooker, the temperature to sense the temperature at the time of warming of the electric rice cooker and outputs a signal according to the control unit It is provided with a sensing unit.

Description

전기 보온밥솥의 제어회로Control circuit of electric rice cooker

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제1도는 종래의 전기 보온밥솥의 회로도1 is a circuit diagram of a conventional electric rice cooker

제2도는 본 발명에 따른 전기 보온밥솥의 제어 회로도2 is a control circuit diagram of the electric rice cooker according to the present invention

Claims (3)

취반기능을 수행한 다음 제이(-+)의 제어에 의하여 상단히터(3) 및 측면히터(4)로 이루어진 보조히터부(8)에 전원을 인가하여 보온기능을 수행하는 전기 보온밥솥에 있어서, 교류전원을 인가받아 직류전압으로 변환시켜 비례직류전압을 발생시키는 직류 전원부(11′), 상기 직류 전원부(11′)에서 인가받은 전압과 상기 전원부(11)의 전압을 하나 이상의 저항으로 분압한 기준전압을 비교하여 상기 제어부(8)의 동작을 제어하는 상한온도조정부(12), 상기 전원부(11)의 출력단 일측에 접속되어 인가받은 교류전압이 제로상태일 경우 소정신호를 출력하여 전기 보온밥솥의 온도를 일정하게 유지시키는 제로크로상부(17), 상기 제어부(20)의 제어신호에 의하여 작동되어 상기 보온히터부(8)에 전원을 인가하는 보온동작부(16), 상기 제어부(20)의 구동전압을 생성하는 구동전압발생부(15), 상기 전기 보온밥솥의 보온시 상기 보온히터부(8)의 동작온도범위를 조절하는 온도편차 조절부(13), 상기 전기 보온밥솥의 보온시 온도를 감지하여 이에 따른 신호를 상기 제어부(8)에 출력하는 온도감지부(14)를 구비하는 것을 특징으로 하는 전기 보온밥솥.In the electric warm rice cooker to perform the warming function by applying power to the auxiliary heater (8) consisting of the upper heater (3) and the side heater (4) by performing the cooking function and then the control of Jay (-+), DC power supply unit 11 'which receives AC power and converts into DC voltage to generate a proportional DC voltage, and a voltage obtained by dividing the voltage applied by the DC power supply 11' and the voltage of the power supply unit 11 with one or more resistors. The upper limit temperature adjusting unit 12 for comparing the voltage and controlling the operation of the control unit 8 and connected to one side of the output terminal of the power supply unit 11 outputs a predetermined signal when the applied AC voltage is zero. The zero-chromic upper part 17 which keeps a temperature constant, the thermal insulation operation part 16 which is operated by the control signal of the said control part 20, and supplies power to the said warmth heater part 8, of the said control part 20 Generating driving voltage Driving voltage generation unit 15, the temperature deviation control unit 13 for adjusting the operating temperature range of the thermal heater 8 when the thermal insulation of the electric rice cooker, the temperature during the warming of the electric rice cooker accordingly Electric heating rice cooker characterized in that it comprises a temperature sensing unit 14 for outputting a signal to the control unit (8). 상기 제1항에 있어서, 상기 보온동작부(16)는 상기 제어부(20)에서 구동신호를 인가받아 작동되는 트라이악(T1)으로 이루어진 것을 특징으로 하는 전기 보온밥솥.The electric warming rice cooker of claim 1, wherein the warming operation part (16) comprises a triac (T1) operated by receiving a driving signal from the control part (20). 상기 제1항에 있어서, 상기 온도감지부(14)는 감지된 온도가 상승하면 출력전류가 증가하는 NTC형 서미스터를 사용하는 것을 특징으로 하는 전기 보온밥솥.The thermostat rice cooker of claim 1, wherein the temperature detector 14 uses an NTC type thermistor whose output current increases when the sensed temperature rises. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임※ Note: The disclosure is based on the initial application.
KR1019950002020A 1995-02-04 1995-02-04 Circuit for keeping a rice cooker warm Expired - Fee Related KR0154450B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019950002020A KR0154450B1 (en) 1995-02-04 1995-02-04 Circuit for keeping a rice cooker warm

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019950002020A KR0154450B1 (en) 1995-02-04 1995-02-04 Circuit for keeping a rice cooker warm

Publications (2)

Publication Number Publication Date
KR960030863A true KR960030863A (en) 1996-09-17
KR0154450B1 KR0154450B1 (en) 1998-10-01

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Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019950002020A Expired - Fee Related KR0154450B1 (en) 1995-02-04 1995-02-04 Circuit for keeping a rice cooker warm

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KR (1) KR0154450B1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100471452B1 (en) * 2002-11-20 2005-03-11 엘지전자 주식회사 Electrical Rice Pot Heater

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Publication number Publication date
KR0154450B1 (en) 1998-10-01

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