KR970032606A

KR970032606A - How to maintain the warming temperature of electric rice cooker by the amount of rice

Info

Publication number: KR970032606A
Application number: KR1019950068801A
Authority: KR
Inventors: 박기순
Original assignee: 배순훈; 대우전자주식회사
Priority date: 1995-12-30
Filing date: 1995-12-30
Publication date: 1997-07-22

Abstract

본 발명은 보온시 전기보온밥솥 내부의 밥량을 체크하여 온도 제어를 달리하므로써 최적의 보온 상태를 유지시키는 밥량에 의한 보온온도 유지방법에 관한 것으로써, 종래의 보온 밥솥의 보온온도 유지방법에 있어서, 75℃의 보온 온도를 맞추기 위해 밥솥의 밥량에 관계없이 일정하게 구동되어 밥솥 내부에 밥량이 적을 때는 밥이 굳거나, 양이 많을 때는 보온이 잘 되지 않고 색이 변하며 냄새가 나는 문제점이 발생하게 되었다.The present invention relates to a method of maintaining the warming temperature by the amount of rice to maintain the optimal warming state by varying the temperature control by checking the amount of rice inside the electric warming cooker at the time of warming, in the warming temperature maintaining method of the conventional warming cooker, In order to keep the temperature at 75 ℃, the rice cooker is constantly driven, regardless of the amount of rice cooked. .

따라서 본 발명은 위에서 상술한 바와 같은 종래 기술의 문제점을 해소하기 위하여 전기보온밥솥에 있어서, 취사가 완료되는 온도(127℃)에서 보온 온도(75℃)까지 떨어지는 온도 분포곡선의 기울기를 연산하여 내부 밥량을 감지하고 보온 온도를 제어하므로써 최적의 보온 상태를 유지하여 밥이 굳거나 색이 변하고 냄새가 나는 것을 방지하기 위하여, 전기보온밥솥의 보온온도유지회로에 있어서, 상기 밥솥의 내부온도를 감지하는 보온 온도센서 입력부와, 보온온도센서입력부의 입력을 받아 그 값을 연산 및 처리하는 마이컴과, 상기 마이컴의 연산결과에 의해 설정된 값으로 구동되는 보온히터 구동부와, 보온 히터로 구성되고, 상기 보온 히터 구동부는 저항과, 트리이악과, 트랜지스터로 구성함과 동시에, 취사가 완료된 후 밥솥 내부의 온도 기울기를 검사하고, 상기 검사 값을 미리 마이컴에 저장되어 있는 값과 연산하여 밥량을 판단하고, 상기 결과에 의해 보온시 트라이악을 조정하도록 제어하게 한 것을 특징으로 한다.Therefore, the present invention is to calculate the slope of the temperature distribution curve falling from the temperature (127 ℃) to the warming temperature (75 ℃) in the electric insulation rice cooker to solve the problems of the prior art as described above in the interior In order to prevent the rice from hardening, changing color, or smelling by maintaining an optimal warming state by sensing the amount of rice and controlling the warming temperature, in the warming temperature maintaining circuit of the electric warming rice cooker, The thermal insulation heater is composed of a temperature sensor input unit, a microcomputer that receives the input of the thermal temperature sensor input unit and calculates and processes its value, a thermal heater driver driven by a value set by the calculation result of the microcomputer, and a thermal heater. The drive unit consists of a resistor, a triac, and a transistor, and at the same time, the temperature gradient inside the cooker after cooking is completed. Check, and the check value, it characterized in that the pre-computes the value stored in the microcomputer determines the bapryang, controlled so as to adjust the triac during keeping warm by the result.

Description

How to maintain the warming temperature of electric rice cooker by the amount of rice

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

제1도는 종래 전기보온밥솥의 보온 온도유지회로의 제어블럭도.1 is a control block diagram of the thermal insulation temperature maintaining circuit of the conventional electric rice cooker.

제2도는 본 발명을 구현하기 위한 전기보온밥솥의 보온 온도유지회로의 제어블럭도.2 is a control block diagram of the thermal insulation temperature maintaining circuit of the electric thermal rice cooker for implementing the present invention.

제3도는 본 발명의 동작 순서를 도시한 제어흐름도.3 is a control flow diagram showing the operation sequence of the present invention.

제4도(a),(b),(c)는 밥량에 의한 전기보온밥솥의 가열상태와 온도분포 곡선을 도시한 도면.Figure 4 (a), (b), (c) is a diagram showing the heating state and the temperature distribution curve of the electric rice cooker by the amount of rice.

Claims

In the known method of maintaining the temperature of the electric insulation rice cooker, after cooking is completed, the temperature gradient inside the cooker falling from 127 ° C to 75 ° C is examined (S2), and the test value is calculated by calculating the value previously stored in the microcomputer. Determine the amount of rice (S3), and drive the triac of the thermal insulation heater drive unit according to the above results (S4) When the amount of rice is large, the triac is driven longer than the reference to maintain the warming temperature inside the cooker, when the amount of rice is small How to maintain the warming temperature of the electric thermal cooker by the amount of rice, characterized in that to control the triac shorter than the reference to maintain the warming temperature inside the cooker.

※ Note: The disclosure is based on the initial application.