KR950028713A - Control circuit of electric rice cooker and control method - Google Patents

Control circuit of electric rice cooker and control method Download PDF

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Publication number
KR950028713A
KR950028713A KR1019940008120A KR19940008120A KR950028713A KR 950028713 A KR950028713 A KR 950028713A KR 1019940008120 A KR1019940008120 A KR 1019940008120A KR 19940008120 A KR19940008120 A KR 19940008120A KR 950028713 A KR950028713 A KR 950028713A
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South Korea
Prior art keywords
humidity
rice cooker
temperature
sensing means
electric
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KR1019940008120A
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Korean (ko)
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KR0119572B1 (en
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전덕구
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이헌조
주식회사 엘지전자
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Priority to KR1019940008120A priority Critical patent/KR0119572B1/en
Publication of KR950028713A publication Critical patent/KR950028713A/en
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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
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
    • G01N27/02—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
    • G01N27/04—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance
    • G01N27/12—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of a solid body in dependence upon absorption of a fluid; of a solid body in dependence upon reaction with a fluid, for detecting components in the fluid
    • G01N27/121—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of a solid body in dependence upon absorption of a fluid; of a solid body in dependence upon reaction with a fluid, for detecting components in the fluid for determining moisture content, e.g. humidity, of the fluid
    • 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 전기보온밥솥에 관한 것으로 특히, 전기보온밥솥에 열을 가하기 위한 가열히터(300)와; 전기보온밥솥의 내부에 부착되어 상기 전기보온밥솥 내부의 습도를 감지하는 습도감지수단(100)과; 전기보온밥솥의 내부에 부착되어 상기 전기보온밥솥 내부의 온도를 감지하는 온도감지수단(400)과; 상기 습도감지수단(100)과 온도감지수단(400)의 출력단에 접속되어, 상기 습도감지수단(100)과 온도감지수단(400)에서 인가되는 신호에 따라 소정의 처리과정을 수행하므로 인해 상기 가열히터(300)를 제어하는 마이콤(200)으로 구성됨을 특징으로 하는 전기보온밥솥의 제어회로와, 전기보온밥솥의 기능이 밥짓기 기능인가를 판단하여 밥짓기기능일 경우에는 소정의 시간 동안 가열히터(300)를 동작시키는 밥짓기기능판단 및 가열히터동작단계(510)와; 상기 밥짓기기능판단 및 가열히터 동작단계(510)를 수행한 후, 온도감지수단(400)과 습도감지수단(100)으로부터 온도와 습도 값을 검출하는 온도습도검출단계(520)와; 상기 온도습도검출단계(520)를 수행한 후, 상기 온도습도검출단계(520)에서 검출된 온도와 습도값을 비교 판단하여 쌀과 물의 비율인 취반량을 판단하는 취반량판정단계(530)와; 상기 취반량 판정단계(530)에서 판단된 취반량에 따라 밥짓기 기능을 수행하는 밥짓기기능 동작단계(540)로 구성됨을 특징으로 하는 전기보온밥솥의 제어방법과, 전기보온밥솥의 기능이 보온기능인가를 판단하는 보온기능판단단계(610)와; 상기 보온기능판단단계(610)에서 보온기능으로 판단됨에 따라 온도감지수단(400)과 습도감지수단(100)을 사용하여 온도 및 습도를 검출하는 검출단계(620)와; 상기 검출단계(620)를 수행하여 검출한 온도와 습도 값을 미리 입력된 데이타의 기준 값과 비교 판단하여 가열히터의 동작을 제어한 후 일련의 처리과정을 수행하는 가열히터제어단계(630)로 구성됨을 특징으로 하는 전기보온밥솥의 제어방법에 관한 것이다.The present invention relates to an electric thermal rice cooker, and in particular, a heating heater 300 for applying heat to the electric thermal rice cooker; Is attached to the inside of the electric rice cooker Humidity sensing means for detecting the humidity inside the electric rice cooker (100); A temperature sensing means 400 attached to the inside of the electric rice cooker for sensing a temperature inside the electric rice cooker; The heating is connected to the output terminal of the humidity sensing means 100 and the temperature sensing means 400, and thus performs a predetermined process according to a signal applied from the humidity sensing means 100 and the temperature sensing means 400. The control circuit of the electric warm rice cooker, characterized in that it consists of a microcomputer 200 for controlling the heater 300, the heating heater for a predetermined time in the case of the cooking function by determining whether the function of the electric warm rice cooker is a cooking function A cooking function determination and heating heater operation step 510 for operating 300; A temperature humidity detection step 520 of detecting temperature and humidity values from the temperature sensing means 400 and the humidity sensing means 100 after performing the cooking function determination and heating heater operation step 510; After performing the temperature and humidity detection step 520, by comparing and determining the temperature and humidity value detected in the temperature and humidity detection step 520 and the cooking amount determination step 530 to determine the cooking amount which is the ratio of rice and water ; The control method of the electric heating rice cooker, characterized in that it comprises a cooking function operation step 540 for performing a cooking function according to the cooking amount determined in the cooking amount determination step 530, the function of the electric heating rice cooker Thermal insulation function determination step 610 of determining whether the function; A detection step 620 of detecting temperature and humidity using the temperature sensing means 400 and the humidity sensing means 100 according to the thermal insulation function determination step 610; By performing the detection step 620 to compare the detected temperature and humidity value with the reference value of the pre-input data to control the operation of the heating heater to the heating heater control step 630 to perform a series of processes It relates to a control method of the electric thermal rice cooker, characterized in that configured.

Description

전기보온밥솥의 제어회로 및 그 제어방법Control circuit of electric rice cooker and control method

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

제1도는 본 발명 전기보온밥솥 제어회로의 구성을 나타낸 블록도, 제2도는 본 발명전기보온밥솥 제어회로의 회로를 나타낸 회로도, 제3도는 본 발명 전기보온밥솥의 제어방법 중 밥짓기 기능의 제어방법을 나타낸 신호흐름도.1 is a block diagram showing the configuration of the electric heating rice cooker control circuit of the present invention, FIG. 2 is a circuit diagram showing the circuit of the electric heating rice cooker control circuit of the present invention, and FIG. 3 is a control method of the cooking function of the control method of the electric heating rice cooker of the present invention. Signal flow diagram showing the method.

Claims (10)

전기보온밥솥에 열을 가하기 위한 가열히터와; 전기보온밥솥의 내부에 부착되어 상기 전기보온밥솥 내부의 습도를 감지하는 습도감지수단과; 전기보온밥솥의 내부에 부착되어 상기 전기보온밥솥 내부의 온도를 감지하는 온도감지수단과; 상기 습도감지단과 온도감지수단의 출력단에 접속되어, 상기 습도감지수단과 온도감지수단에서 인가되는 신호에 따라 소정의 처리과정을 수행하므로, 인해 상기 가열히터를 제어하는 마이콤으로 구성됨을 특징으로 하는 전기보온밥솥의 제어회로.A heating heater for applying heat to the electric rice cooker; Humidity sensing means attached to the inside of the electric rice cooker for sensing the humidity of the electric rice cooker; A temperature sensing means attached to an inside of the electric rice cooker and sensing a temperature inside the electric rice cooker; The microcomputer is connected to an output terminal of the humidity sensing unit and the temperature sensing unit, and performs a predetermined process according to a signal applied from the humidity sensing unit and the temperature sensing unit, thereby controlling the heating heater. Control circuit of warm rice cooker. 제1항에 있어서, 상기 습도감지수단은, 상기 전기보온밥솥 내부에 설치된 습도센서로 구성되어 상기 전기보온밥솥 내부의 습도를 감지하는 습도 감지부와; 상기 습도 감지부의 출력단에 접속되어, 상기 습도 감지부에서 감지된 값을 소정의 값으로 증폭하는 증폭부로 구성됨을 특징으로 하는 전기보온밥솥의 제어회로.According to claim 1, wherein the humidity detecting means, Humidity sensing unit consisting of a humidity sensor installed inside the electric rice cooker for sensing the humidity inside the electric rice cooker; The control circuit of the electric rice cooker, characterized in that it is connected to the output of the humidity sensing unit, amplifying unit for amplifying the value detected by the humidity sensing unit to a predetermined value. 제2항에 있어서, 상기 습도 감지부는, 습도센서를 사용하는 브릿지 평형회로로 구성되어, 습도의 발생량에 따라 소정의 값을 출력하도록 구성됨을 특징으로 하는 전기보온밥솥의 제어회로.The control circuit of claim 2, wherein the humidity sensing unit comprises a bridge balancing circuit using a humidity sensor, and outputs a predetermined value according to the generation amount of humidity. 제2항에 있어서, 상기 습도 감지부는, 전원의 (+)단자와 접지점 사이에 밀폐되어 있는 제1습도센서와 개방되어있는 제2습도센서가 직렬로 접속되고, 전원의 (+)단자와 접지점 사이에 제1평형저항과 제2평형저항이 직렬로 접속되어, 상기 제1습도센서와 제2습도센서의 공통접속점과, 상기 제1평형저항과 제2평형저항의 공통접속점에서 신호를 출력하도록 구성됨을 특징으로 하는 전기보온밥솥의 제어회로.According to claim 2, wherein the humidity sensing unit, the first humidity sensor and the second humidity sensor which is sealed between the positive terminal and the ground point of the power supply is connected in series, the positive terminal and the ground point of the power supply The first balance resistor and the second balance resistor are connected in series to output a signal at a common connection point of the first humidity sensor and the second humidity sensor and a common connection point of the first balance resistance and the second balance resistance. Control circuit of electric thermal rice cooker, characterized in that configured. 제2항, 제3항 또는 제4항에 있어서, 상기 제1습도센서와 제2습도센서는 일체로 형성된 습도검출소자로 구성됨을 특징으로 하는 전기보온밥솥의 제어회로.The control circuit according to claim 2, 3 or 4, wherein the first humidity sensor and the second humidity sensor comprise a humidity detection element formed integrally with each other. 제2항, 제3항, 제4항 또는 제5항에 있어서, 상기 습도센서는, 전기보온밥솥의 뚜껑 중앙부에 설치됨을 특징으로 하는 전기보온밥통의 제어회로.The control circuit according to claim 2, 3, 4 or 5, wherein the humidity sensor is installed at the center of the lid of the electric rice cooker. 제2항에 있어서, 상기 증폭부는, 상기 습도감지부의 출력단에 반전입력단자와 비반전입력단자가 접속된 차동입력을 갖는 비반전연산증폭기로 이루어져, 상기 습도감지부에서 출력되는 습도감지신호의 변화량을 소정의 비로 증폭하도록 구성됨을 특징으로 하는 전기보온밥솥의 제어회로.The method of claim 2, wherein the amplifying unit comprises a non-inverting operational amplifier having a differential input having an inverting input terminal and a non-inverting input terminal connected to an output terminal of the humidity sensing unit, the amount of change of the humidity sensing signal output from the humidity sensing unit. The control circuit of the electric rice cooker, characterized in that configured to amplify a predetermined ratio. 전기보온밥솥의 기능이 밥짓기 기능인가를 판단하여 밥짓기 기능일 경우에는 소정의 시간동안 가열히터를 동작시키는 밥짓기 기능판단 및 가열히터동작단계와; 상기 밥짓기 기능판단 및 가열히터동작단계를 수행한 후, 온도감지수단과 습도감지수단으로부터 온도와 습도 값을 검출하는 온도습도검출단계와; 상기 온도습도검출단계를 수행한 후, 상기 온도습도감출단계에서 검출된 온도와 습도 값을 비교 판단하여 쌀과 물의 비율인 취반량을 판단하는 취반량판정단계와; 상기 취반량판정단계에서 판단된 취반량에 따라 밥짓기기능을 수행하는 밥짓기 기능동작단계로 구성됨을 특징으로 하는 전기보온밥솥의 제어방법.A cooking function determination and heating heater operation step of operating the heating heater for a predetermined time when the cooking function is determined by determining whether the function of the electric rice cooker is a cooking function; A temperature humidity detecting step of detecting temperature and humidity values from the temperature sensing means and the humidity sensing means after performing the cooking function determination and heating heater operation step; A cooking quantity judging step of judging a cooking quantity which is a ratio of rice and water by judging by comparing the temperature and humidity values detected in the temperature humidity sensing step after performing the temperature humidity detecting step; Control method of the electric rice cooker characterized in that it comprises a cooking function operation step of performing the cooking function according to the cooking amount determined in the cooking amount determination step. 전기보온밥솥의 기능이 보온기능인가를 판단하는 보온기능판단단계와; 상기 보온기능판단단계에서 전기보온밥솥의 기능이 보온기능으로 판단됨에 따라 온도감지수단과 습도감지수단을 사용하여 온도 및 습도를 검출하는 검출단계와; 상기 검출단계를 수행하여 검출한 온도와 습도값을 미리 입력된 데이타의 기준값과 비교 판단하여 가열히터의 동작을 제어한 후 일련의 처리과정을 수행하는 가열히터제어단계로 구성됨을 특징으로 하는 전기보온밥솥의 제어방법.A thermal insulation function judging step of determining whether the thermal insulation function is a thermal insulation function; A detecting step of detecting temperature and humidity by using a temperature sensing means and a humidity sensing means according to the function of the electric warming rice cooker in the thermal insulation function determination step; Electrical insulation comprising a heating heater control step of performing a series of processing after controlling the operation of the heating heater by comparing the detected temperature and humidity value by performing the detection step with the reference value of the previously input data How to control the rice cooker. 제9항에 있어서, 상기 검출단계는, 타이머를 구동하여 일정시간동안 온도 및 습도의 검출을 지연하는 타이머구동단계와; 상기 타이머구동단계를 수행한 후 상기 온도감지수단과 습도감지수단을 사용하여 온도 및 습도를 감지하는 온도습도검출단계로 구성됨을 특징으로 하는 전기보온밥솥의 제어방법.10. The method of claim 9, wherein the detecting step comprises: a timer driving step of driving a timer to delay detection of temperature and humidity for a predetermined time; And a temperature humidity detecting step of detecting temperature and humidity by using the temperature sensing means and the humidity sensing means after performing the timer driving step. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019940008120A 1994-04-18 1994-04-18 Method for control of electric rice cooker KR0119572B1 (en)

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KR0119572B1 KR0119572B1 (en) 1997-10-27

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KR101137809B1 (en) * 2009-12-30 2012-04-20 주식회사 리홈 Electric rice cooker and heat retaining method for the same
CN108852013B (en) * 2018-05-11 2020-11-24 广东美的厨房电器制造有限公司 Absolute humidity detection device and method for cooking appliance and cooking appliance

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