KR960028693A

KR960028693A - A heating device

Info

Publication number: KR960028693A
Application number: KR1019940036492A
Authority: KR
Inventors: 이응화
Original assignee: 김광호; 삼성전자 주식회사
Priority date: 1994-12-23
Filing date: 1994-12-23
Publication date: 1996-07-22

Abstract

본 발명은 전열장치에 관한 것으로, 전원으로부터 출력되는 입력 접압의 크기에 따라 발열수단에 인가되는 전압의 위상을 변화시킴으로써 발열수단에서 항상 균일한 출력을 얻을 수 있어서 제품의 성능을 양호하게 할 수 있고 밥의 취반상태를 양호하게 할 수 있는 매우 뛰어난 효과가 있다. 또한 밥솥을 보온할 경우 밥솥 내부의 온도를 감지하는 온도 감지 수단을 서미스터로 구성하고, 발열수단에 인가되는 전압을 스위칭하는 스위칭소자를 트라이악으로 구성함으로써 온도제어의 응답속도를 향상할 수 있고, 온도제어를 정확하게 할 수 있어서 제품의 신뢰성을 향상할 수 있는 매우 뛰어난 효과가 있다.The present invention relates to a heat transfer device, by changing the phase of the voltage applied to the heat generating means in accordance with the magnitude of the input voltage output from the power source can always obtain a uniform output from the heat generating means can improve the performance of the product There is a very good effect that can improve the cooking condition of the rice. In addition, when the rice cooker is insulated, the temperature sensing means for sensing the temperature inside the rice cooker is configured as a thermistor, and the switching element for switching the voltage applied to the heating means is configured as a triac to improve the response speed of temperature control. The temperature control can be precisely performed, and the reliability of the product can be improved.

Description

A heating device

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

제1도는 본 발명의 일실시예에 의한 전열 장치의 제어회로 블록도. 제2도는 본발명의 일실시예에 의한 전열 장치의 제어회로도. 제3도는 종래 전열 장치의 회로도.1 is a control circuit block diagram of a heating device according to an embodiment of the present invention. 2 is a control circuit diagram of a heating device according to an embodiment of the present invention. 3 is a circuit diagram of a conventional heating device.

Claims

In the heat-transfer device heat generating means for generating an input voltage from the power source, a voltage sensing means for detecting the magnitude of the input voltage output from the power source, and the heating means according to the magnitude of the input voltage detected by the voltage sensing means And a phase control means for controlling the phase of the applied voltage.

2. The voltage sensing means according to claim 1, wherein the voltage sensing means converts the input voltage into a DC voltage and the resistors R16 and R17 to the phase control means in accordance with the magnitude of the DC voltage output to the voltage conversion circuit. And a comparator (20, 22) for comparing the DC voltage output from the voltage conversion circuit with a reference voltage to connect / block.

The method of claim 1, wherein the phase control means is a switching element for switching the input voltage applied to the heat generating means, and the resistance (R16, R17) of the voltage sensing means in accordance with the magnitude of the input voltage sensed by the voltage sensing means; And a power supply driving integrated circuit for changing a turn-on angle of the switching element according to a potential of a capacitor (C4) connected to / blocking the power supply and a potential of the + terminal of the capacitor (C4).

The method of claim 1, wherein the heating means is installed in the main heater for heating and cooking the rice in the rice cooker, the body heater and cover which is installed in the housing to heat the rice in the cooker to keep the rice in the rice cooker Heating device characterized in that consisting of a cover heater for generating heat.

The method of claim 1, wherein the heating means is connected to the cooking / warming switching means for switching the voltage applied to the main heater and the body heater and the cover heater to be described later to the rice to cook and keep the rice in the rice cooker is connected. Heating device made.

The heating apparatus according to claim 1, wherein the phase control means is connected with a temperature sensor for sensing a temperature inside the rice cooker to turn off the switching element when the temperature inside the rice cooker is equal to or higher than a warming temperature.

According to claim 5, The cooking / warm switching means is a comparator (32) for receiving the temperature of the inside of the rice cooker from the temperature sensor for sensing the temperature inside the rice cooker and comparing the temperature inside the rice cooker with the temperature of the cooking rice, and the temperature inside the rice cooker Is greater than the cooking end temperature and receives a comparison signal from the comparator 32 to turn off the relay to reduce the voltage applied to the main heater of the heating means, and if the temperature inside the cooker is less than the cooking end temperature, the comparator ( And a microcomputer to turn on / off the relay to receive / collect the comparison signal from 32) and at the same time to receive the cook / heat signal from the cook / heat select switch.