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KR20060072690A - Insulation temperature control method of electric rice cooker - Google Patents

Insulation temperature control method of electric rice cooker Download PDF

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Publication number
KR20060072690A
KR20060072690A KR1020040111400A KR20040111400A KR20060072690A KR 20060072690 A KR20060072690 A KR 20060072690A KR 1020040111400 A KR1020040111400 A KR 1020040111400A KR 20040111400 A KR20040111400 A KR 20040111400A KR 20060072690 A KR20060072690 A KR 20060072690A
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temperature
ambient temperature
rice cooker
heater
warming
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KR100707850B1 (en
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사사키토시노리
하동규
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주식회사 노비타
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    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47JKITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J27/00Cooking-vessels
    • A47J27/08Pressure-cookers; Lids or locking devices specially adapted therefor
    • A47J27/0802Control mechanisms for pressure-cookers
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47JKITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J36/00Parts, details or accessories of cooking-vessels
    • A47J36/24Warming devices
    • A47J36/2483Warming devices with electrical heating means
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47JKITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J27/00Cooking-vessels
    • A47J27/08Pressure-cookers; Lids or locking devices specially adapted therefor
    • A47J27/086Pressure-cookers; Lids or locking devices specially adapted therefor with built-in heating means
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S220/00Receptacles
    • Y10S220/912Cookware, i.e. pots and pans

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

Abstract

본 발명은 전기보온 밥솥의 보온온도 제어방법에 관한 것으로서, 특히 보온모드시 랜덤하게 히터 전원을 차단한 상태에서 센터센서에서 감지되는 온도가 5℃ 하강하는데 소요되는 시간을 측정하고, 그 측정시간을 미리저장되어있는 데이타맵과 비교하여 주변온도를 유추한 후 그 유추된 주변온도정보에 따라 히터로 공급되는 전압을 조절하여 목표 보온온도가 유지되도록 구성하므로서, 별도의 부품을 추가 설치하지 않고서도 보온밥솥의 주변온도를 측정하고, 그 주변온도에 대응하여 보온온도가 일정하게 유지되도록 하여 밥의 보온기간을 연장할 수 있도록 한 전기보온 밥솥의 보온온도 제어방법에 관한 것이다.The present invention relates to a method of controlling the temperature of an electric thermal cooker, and particularly, a time required for the temperature detected by the center sensor to be lowered by 5 ° C in a state in which the heater is randomly cut off in the warming mode, and measuring the measurement time. Compared with the pre-stored data map, it infers the ambient temperature and adjusts the voltage supplied to the heater according to the inferred ambient temperature information so that the target warming temperature is maintained. It relates to a method of controlling the temperature of an electric heat cooker to measure the ambient temperature of the rice cooker, and to maintain the heat keeping temperature in correspondence with the ambient temperature to extend the warming period of the rice.

보온밥솥, 주변온도, 센터센서, 5℃ 하강시간,Warm rice cooker, ambient temperature, center sensor, 5 ℃ fall time,

Description

전기보온 밥솥의 보온온도 제어방법{Keeping warm temperature control method}Keeping warm temperature control method of electric rice cooker

도 1 은 일반적인 전기보온 밥솥을 보인 도면.1 is a view showing a general electric rice cooker.

도 2 는 본 발명의 전기보온 밥솥의 보온온도 제어방법을 보인 플로우챠트.Figure 2 is a flow chart showing a method of controlling the temperature of the electric heat cooker of the present invention.

도 3 은 본 발명의 제어부 메모리에 저장되는 데이타맵을 보인 도면.3 is a view showing a data map stored in a control unit memory of the present invention;

*도면의 주요부분에 대한 부호의 설명** Description of the symbols for the main parts of the drawings *

1: 내통, 2: 센터센서,1: inner cylinder, 2: center sensor,

3: 뚜껑히터, 4: 바디히터,3: lid heater, 4: body heater,

5: 가열판,5: hot plate,

본 발명은 전기보온 밥솥의 보온온도 제어방법에 관한 것으로서, 특히 별도의 부품을 추가 설치하지 않고서도 보온밥솥의 주변온도를 측정하고, 그 주변온도에 대응하여 보온온도가 일정하게 유지되도록 하여 밥의 보온기간을 연장할 수 있도록 한 전기보온 밥솥의 보온온도 제어방법에 관한 것이다.The present invention relates to a method of controlling the warming temperature of an electric warming cooker, and in particular, measures the ambient temperature of the warming rice cooker without installing any additional parts, and keeps the warming temperature constant in response to the ambient temperature. The present invention relates to a method of controlling the temperature of an electric heat cooker to extend the heat retention period.

도 1 은 일반적인 전기 보온밥솥을 도시한 것으로서,1 illustrates a general electric rice cooker,

외부 케이스의 내부에 내통(1)이 탑재되고, 상기 내통(1)에 접하도록 그 상면에는 뚜껑히터(3), 측면부에는 바디히터(4), 바닥부에는 가열판(5)이 형성되어 있으며, 중앙부분에는 내통(1)의 온도 감지를 위한 센터센서(2)가 형성되어 있다.An inner cylinder 1 is mounted inside the outer case, and a lid heater 3 is formed on an upper surface thereof, a body heater 4 is formed on a side surface thereof, and a heating plate 5 is formed on a bottom portion thereof so as to contact the inner cylinder 1. In the center portion is formed a center sensor (2) for sensing the temperature of the inner cylinder (1).

상기와같은 전기 보온밥솥의 종래 보온온도 제어방법으로는,As a conventional thermal insulation temperature control method of the electric thermal rice cooker as described above,

보온밥솥의 일단에 주변온도를 감지할 수 있는 별도의 센서가 설치되고, 그 센서에서 감지되는 주변온도정보에 따라 히터로 공급되는 전압을 조절하여 보온밥솥의 보온온도가 일정하게 유지되도록 하는 것이다.A separate sensor is installed at one end of the warming rice cooker to adjust the voltage supplied to the heater according to the ambient temperature information detected by the sensor to keep the warming temperature of the warming rice cooker constant.

일반적으로 밥솥의 보온온도는 약 70℃를 중심으로 설계되고 있으며, 주변온도에 관계없이 히터온도를 일정하게 유지시키게되면, 주변온도가 높을 경우에는 밥솥 내부의 보온온도가 설계온도보다 높아지게되어 쉽게 밥이 황색으로 변화하게되고, 주변온도가 낮을때에는 밥솥 내부의 보온온도가 설계온도보다 낮아지게되어 밥이 쉽게 부패하게되는 문제점이 발생하게된다.In general, the cooker's warming temperature is designed around 70 ℃, and if the heater temperature is kept constant regardless of the surrounding temperature, if the ambient temperature is high, the warming temperature inside the cooker will be higher than the design temperature, making it easy to cook. When the yellow color is changed, when the ambient temperature is low, the temperature inside the cooker becomes lower than the design temperature, causing the rice to easily decay.

이러한 이유로 주변온도에 대응하여 히터로 공급되는 전압을 적절히 조절해줌으로써 주변온도에 관계없이 보온밥솥의 보온온도가 일정하게 유지되도록 하고 있는 것이다.For this reason, the temperature supplied to the heater is properly adjusted in response to the ambient temperature so that the temperature of the rice cooker is kept constant regardless of the ambient temperature.

그러나, 종래기술은 주변온도 감지를 위해 별도의 센서를 밥솥의 외측부에 노출되도록 별도로 설치해야만 하므로 추가적인 부품 설치에 따라 제품의 원가가 상승함은 물론 보온밥솥의 구조가 복잡해지고, 생산성이 하락하게되는 문제점 이 발생하고 있었다.However, in the prior art, a separate sensor must be separately installed so as to be exposed to the outside of the rice cooker in order to detect the ambient temperature, so that the cost of the product increases according to the installation of additional parts, and the structure of the rice cooker becomes complicated and the productivity decreases. There was a problem.

따라서, 상기 문제점을 해결하기 위한 본 발명은 보온모드시 랜덤하게 히터 전원을 차단한 상태에서 센터센서에서 감지되는 온도가 5℃ 하강하는데 소요되는 시간을 측정하고, 그 측정시간을 미리저장되어있는 데이타맵과 비교하여 주변온도를 유추한 후 그 유추된 주변온도정보에 따라 히터로 공급되는 전압을 조절하여 목표 보온온도가 유지되도록 구성하므로서, 별도의 부품을 추가 설치하지 않고서도 보온밥솥의 주변온도를 측정하고, 그 주변온도에 대응하여 보온온도가 일정하게 유지되도록 하여 밥의 보온기간을 연장할 수 있도록 한 전기보온 밥솥의 보온온도 제어방법을 제공함을 목적으로 한다.Therefore, the present invention for solving the above problem is to measure the time it takes for the temperature sensed by the center sensor to fall 5 ° C in a state in which the heater power is randomly cut off in the warming mode, and the measurement time is stored in advance After inferring the ambient temperature in comparison with the map and adjusting the voltage supplied to the heater according to the inferred ambient temperature information, the target warming temperature is maintained so that the ambient temperature of the insulated rice cooker can be maintained without installing additional parts. It is an object of the present invention to provide a method of controlling the temperature of an electric heat cooker, which measures and maintains the heat temperature constant in response to the ambient temperature, thereby extending the heat retention period of the rice.

상기 목적달성을 위한 본 발명은,The present invention for achieving the above object,

전기 보온밥솥의 보온온도를 주변온도에 대응하여 조절하는 방법에 있어서,In the method of adjusting the warming temperature of the electric rice cooker corresponding to the ambient temperature,

보온모드가 설정되면 일정 시점에 히터 전압을 오프시키는 제 1 과정과;A first step of turning off the heater voltage at a predetermined time when the warming mode is set;

히터전압 오프시의 센터센서 측정온도를 저장하는 제 2 과정과;A second step of storing the center sensor measured temperature when the heater voltage is off;

제 2 과정이후 센터센서 측정온도가 5℃ 하강하는데 소요되는 시간을 측정하는 제 3 과정과;A third step of measuring a time required for the center sensor measurement temperature to decrease by 5 ° C after the second step;

제 3 과정에서 측정된 측정시간과 데이타맵에 저장되어 있는 정보를 비교하여 주변온도를 유추하고, 그 유추된 주변온도에 대응하여 히터로 공급되는 전압을 조절하는 제 4 과정; 으로 구성된 것을 특징으로 한다.A fourth step of inferring an ambient temperature by comparing the measured time measured in the third step with information stored in the data map and adjusting a voltage supplied to the heater in response to the inferred ambient temperature; Characterized in that consisting of.

상기 데이타맵에 저장되는 정보는 특정 주변온도 상태에서 히터를 오프시켰 을때 센터센서의 감지온도가 5℃ 하락하는데 소요되는 시간들을 여러번의 실험에 의해 측정하여 저장한 것임을 특징으로 한다.
The information stored in the data map is characterized in that the time required to decrease the detection temperature of the center sensor by 5 ℃ when the heater is turned off at a specific ambient temperature is measured and stored by several experiments.

이하, 첨부된 도면 도 2 와 도 3 을 참조하여 본 발명의 바람직한 실시예를 설명하면 다음과 같다.Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings, FIGS. 2 and 3.

본 발명의 설명에 있어서 종래와 동일한 구성요소에 대해서는 동일부호 표기하여 중복설명을 피하기로 한다.In the description of the present invention, the same components as in the prior art will be denoted by the same reference numerals to avoid redundant description.

본 발명의 전기보온 밥솥의 보온온도 제어방법은,Thermal insulation temperature control method of the electric insulation rice cooker of the present invention,

전기 보온밥솥의 보온온도를 주변온도에 대응하여 조절하는 방법에 있어서,In the method of adjusting the warming temperature of the electric rice cooker corresponding to the ambient temperature,

보온모드가 설정되면 일정 시점에 히터 전압을 오프시키는 제 1 과정과;A first step of turning off the heater voltage at a predetermined time when the warming mode is set;

히터전압 오프시의 센터센서(2) 측정온도를 저장하는 제 2 과정과;A second step of storing the center sensor 2 measured temperature when the heater voltage is off;

제 2 과정이후 센터센서(2) 측정온도가 5℃ 하강하는데 소요되는 시간을 측정하는 제 3 과정과;A third step of measuring a time required for the center sensor 2 to decrease the measurement temperature by 5 ° C after the second step;

제 3 과정에서 측정된 측정시간과 데이타맵에 저장되어 있는 정보를 비교하여 주변온도를 유추하고, 그 유추된 주변온도에 대응하여 히터로 공급되는 전압을 조절하는 제 4 과정; 으로 구성된다.A fourth step of inferring an ambient temperature by comparing the measured time measured in the third step with information stored in the data map and adjusting a voltage supplied to the heater in response to the inferred ambient temperature; It consists of.

상기 데이타맵에 저장되는 정보는 특정 주변온도 상태에서 히터를 오프시켰을때 센터센서의 감지온도가 5℃ 하락하는데 소요되는 시간들을 여러번의 실험에 의해 측정하여 저장한 것이다.The information stored in the data map is stored by measuring the time required for the detection temperature of the center sensor to decrease by 5 ℃ when the heater is turned off at a specific ambient temperature by several experiments.

상기와같은 제어는 미도시된 제어장치에 의해 이루어지며, 상기 데이타맵은 제어장치에 구비된 자체 메모리에 저장된다.Such control is performed by a control device not shown, and the data map is stored in its own memory provided in the control device.

이와같이 구성된 본 발명의 동작을 설명하면 다음과 같다.Referring to the operation of the present invention configured as described above is as follows.

전기 보온밥솥의 제어장치에는 도 3 과같은 데이타맵이 저장된다.The data map of FIG. 3 is stored in the controller of the electric thermal rice cooker.

상기 데이타맵을 살펴보면, 주변온도가 35℃, 20℃,5℃ 일때 센터센서(2)의 감지온도가 5℃ 하강하는데 소요되는 시간들을 미리 측정하여 저장하는 것이며, 실제 보온밥솥에 저장되는 데이타맵에는 보다 많은 주변온도에 대하여 5℃ 하강시간정보가 저장되게 된다.Looking at the data map, when the ambient temperature is 35 ℃, 20 ℃, 5 ℃ is to measure and store in advance the time required for the detection temperature of the center sensor 2 to drop 5 ℃, the data map stored in the actual thermal rice cooker In the 5 ℃ fall time information is stored for more ambient temperature.

상기와같은 데이타맵이 제어장치에 저장되어있는 상태에서,With the above data map stored in the controller,

보온밥솥이 보온모드로 설정되면,When the warming rice cooker is set to warming mode,

임의의 시점에 히터로 공급되는 전압을 차단하고, 그때의 센터센서(2) 측정온도를 저장시킨다.The voltage supplied to the heater is cut off at any time and the center sensor 2 measured temperature at that time is stored.

그리고, 상기 센터센서(2)에서 측정되는 온도가 5℃ 하강하는 시점을 검출하고, 5℃ 하강하는데 소요되는 시간을 계수한다.Then, a time point at which the temperature measured by the center sensor 2 decreases by 5 ° C. is detected, and the time required to decrease 5 ° C. is counted.

이때 제어장치는 상기 5℃ 하강 소요시간정보와 데이타맵에 저장되어있는 정보를 비교하여 현재의 주변온도를 유추하게된다.At this time, the controller compares the 5 ° C down time required information and the information stored in the data map to infer the current ambient temperature.

즉, 현재 측정된 5℃ 하강 소요시간이 25분으로 측정되었다면 제어장치는 현재의 주변온도가 20℃ 인것으로 유추하는 것이며, 이렇게 주변온도가 유추되면 제어장치는 주변온도에 비례하여 히터로 공급되는 전압을 조정하므로서 보온밥솥 내부의 보온온도가 설계온도로 유지되도록 하는 것이다.That is, if the current measured 5 ℃ descent time is measured as 25 minutes, the controller infers that the current ambient temperature is 20 ℃, and if the ambient temperature is inferred, the controller is supplied to the heater in proportion to the ambient temperature. By adjusting the voltage, the thermal insulation temperature inside the thermal rice cooker is maintained at the design temperature.

이상에서 설명한 바와같이 본 발명은 보온모드시 랜덤하게 히터 전원을 차단한 상태에서 센터센서에서 감지되는 온도가 5℃ 하강하는데 소요되는 시간을 측정하고, 그 측정시간을 미리저장되어있는 데이타맵과 비교하여 주변온도를 유추한 후 그 유추된 주변온도정보에 따라 히터로 공급되는 전압을 조절하여 목표 보온온도가 유지되도록 구성하므로서, 별도의 부품을 추가 설치하지 않고서도 보온밥솥의 주변온도를 측정하고, 그 주변온도에 대응하여 보온온도가 일정하게 유지되도록 하여 밥의 보온기간을 연장할 수 있도록 한 전기보온 밥솥의 보온온도 제어방법을 제공하는 효과를 기대할 수 있다.As described above, the present invention measures the time required for the temperature sensed by the center sensor to drop 5 ° C in a state of randomly shutting down the heater in the warming mode, and compares the measurement time with a pre-stored data map. After inferring the ambient temperature by adjusting the voltage supplied to the heater in accordance with the inferred ambient temperature information, so that the target warming temperature is maintained, and measures the ambient temperature of the rice cooker without installing additional parts, It can be expected to provide an effect of providing a method of controlling the temperature of the electric heat cooker to extend the warming period of the rice by keeping the temperature kept constant in response to the ambient temperature.

Claims (2)

전기 보온밥솥의 보온온도를 주변온도에 대응하여 조절하는 방법에 있어서,In the method of adjusting the warming temperature of the electric rice cooker corresponding to the ambient temperature, 보온모드가 설정되면 일정 시점에 히터 전압을 오프시키는 제 1 과정과;A first step of turning off the heater voltage at a predetermined time when the warming mode is set; 히터전압 오프시의 센터센서(2) 측정온도를 저장하는 제 2 과정과;A second step of storing the center sensor 2 measured temperature when the heater voltage is off; 제 2 과정이후 센터센서(2) 측정온도가 5℃ 하강하는데 소요되는 시간을 측정하는 제 3 과정과;A third step of measuring a time required for the center sensor 2 to decrease the measurement temperature by 5 ° C after the second step; 제 3 과정에서 측정된 측정시간과 데이타맵에 저장되어 있는 정보를 비교하여 주변온도를 유추하고, 그 유추된 주변온도에 대응하여 히터로 공급되는 전압을 조절하는 제 4 과정; 으로 구성된 것을 특징으로 하는 전기보온 밥솥의 보온온도 제어방법.A fourth step of inferring an ambient temperature by comparing the measured time measured in the third step with information stored in the data map and adjusting a voltage supplied to the heater in response to the inferred ambient temperature; Thermal insulation temperature control method of an electric insulation rice cooker, characterized in that consisting of. 제 1 항에 있어서, 상기 데이타맵에 저장되는 정보는 특정 주변온도 상태에서 히터를 오프시켰을때 센터센서의 감지온도가 5℃ 하락하는데 소요되는 시간들을 여러번의 실험에 의해 측정하여 저장한 것임을 특징으로 하는 전기보온 밥솥의 보온온도 제어방법.The method of claim 1, wherein the information stored in the data map is measured and stored by a plurality of experiments for the time required for the sensing temperature of the center sensor to decrease by 5 ° C when the heater is turned off at a specific ambient temperature. Insulation temperature control method of the electric insulation rice cooker.
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Publication number Priority date Publication date Assignee Title
CN108415482A (en) * 2018-01-31 2018-08-17 厦门芯阳科技股份有限公司 A kind of coffee machine temperature control self-learning algorithm, system and device
CN112568725A (en) * 2019-09-29 2021-03-30 浙江苏泊尔家电制造有限公司 Method for controlling cooking appliance based on voltage and cooking appliance

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Publication number Priority date Publication date Assignee Title
KR100379414B1 (en) * 2000-01-12 2003-04-10 엘지전자 주식회사 Method for controlling heat of electric rice-cooker

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108415482A (en) * 2018-01-31 2018-08-17 厦门芯阳科技股份有限公司 A kind of coffee machine temperature control self-learning algorithm, system and device
CN108415482B (en) * 2018-01-31 2020-06-16 厦门芯阳科技股份有限公司 A temperature control method, system and device based on a coffee machine temperature control self-learning algorithm
CN112568725A (en) * 2019-09-29 2021-03-30 浙江苏泊尔家电制造有限公司 Method for controlling cooking appliance based on voltage and cooking appliance

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