KR940009595A - Electronic cooker - Google Patents

Electronic cooker Download PDF

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Publication number
KR940009595A
KR940009595A KR1019930020869A KR930020869A KR940009595A KR 940009595 A KR940009595 A KR 940009595A KR 1019930020869 A KR1019930020869 A KR 1019930020869A KR 930020869 A KR930020869 A KR 930020869A KR 940009595 A KR940009595 A KR 940009595A
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KR
South Korea
Prior art keywords
time
input current
switching element
discrimination
setting
Prior art date
Application number
KR1019930020869A
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Korean (ko)
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KR960004836B1 (en
Inventor
히토시 다키모토
데루야 다나카
Original Assignee
사토 후미오
가부시키가이샤 도시바
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Publication of KR940009595A publication Critical patent/KR940009595A/en
Application granted granted Critical
Publication of KR960004836B1 publication Critical patent/KR960004836B1/en

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24CDOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C7/00Stoves or ranges heated by electric energy
    • F24C7/08Arrangement or mounting of control or safety devices

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Induction Heating Cooking Devices (AREA)

Abstract

본 발명은 입력가변범위를 한정하지않고 비적정부하를 확실하게 검지하여 연속적인 약한불 가열, 보온을 가능하게 하는 것을 목적으로 하는 전자조리기에 관한 것으로써, 비적정부하의 검지에 필요한 최소한의 스위칭소자의 ON시간(판별ON시간)을 규정하여 기억하는 판별ON시간규정부(23)와 그 규정된 판별ON시간과 ON시간설정부(14)에서 설정된 ON시간을 비교하는 비교부(24)와 그 비교결과에 따라 ON시간이 판별ON시간 미만에서는 일정 주기마다에 ON시간을 판별ON시간 이상이 될 때까지 증가시켜서 일정시간 사이에 비적정부하검지를 실시하여 원래의 설정된 ON시간으로 되돌아가는 ON시간변경부(25)를 갖는 것을 특징으로 한다.The present invention relates to an electronic cooker for the purpose of reliably detecting unsuitable load without limiting the input variable range and enabling continuous weak fire heating and warming. Discrimination ON time regulation section 23 for defining and storing ON time (discrimination ON time) and comparison section 24 for comparing the prescribed ON time set with the specified ON time set by the ON time setting section 14, and the comparison According to the result, if the ON time is less than the discrimination ON time, increase the ON time for a certain period until the discrimination ON time is exceeded, and perform non-suitable detection for a certain time to change the ON time to return to the original ON time. It is characterized by having the part 25.

Description

전자조리기Electronic cooker

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

제1도는 본 발명에 관련되는 전자조리기의 제1실시예를 나타내는 회로도,1 is a circuit diagram showing a first embodiment of an electronic cooker according to the present invention;

제2도는 상기 제1실시예에 있어서 부하마다의 ON시간과 입력전류의 관계를 나타내는 특성도,2 is a characteristic diagram showing a relationship between an ON time and an input current for each load in the first embodiment;

제3도는 상기 제1실시예에 있어서 부하마다의 ON시간과 인버터전류의 관계를 나타내는 특성도,3 is a characteristic diagram showing a relationship between an ON time and an inverter current for each load in the first embodiment;

제4도는 상기 제1실시예에 있어서 ON시간이 판별 ON시간 미만으로 설정된 경우의 부하검지동작을 설명하기 위한 도면.4 is a diagram for explaining a load detection operation when the ON time is set to less than the discrimination ON time in the first embodiment.

Claims (2)

스위칭소자, 가열코일 및 공진콘덴서를 포함하여 구성되고 상기 스위칭소자가 주기적으로 ON·OFF 됨에 따라 직류전압을 고주파로 변환하여 상기 가열코일에 공급하여 부하를 가열하는 인버터회로와, 설정입력을 기초로하여 상기 스위칭소자의 ON시간을 설정하는 ON시간설정부를 구비하고 해당 ON시간 설정부에서 설정된 ON시간으로 상기 스위칭소자를 구동하는 제어회로를 갖는 전자조리기에 있어서, 비적정부하의 검지에 필요한 최소한의 상기 스위칭소자의 ON시간(판별ON시간)을 규정하여 기억하는 판별ON시간규정부에서 설정된 ON시간을 비교하는 비교부와, 해당비교부의 비교결과에 다라 설정된 ON시간이 판별ON시간 미만인때에는 일정주기마다에 ON시간을 판별ON시간이상이 될때까지 증가시켜서 일정시간사이에 비적정부하검지를 실시하여 원래의 설정된 ON시간으로 되돌아가는 ON시간변경부를 갖는 것을 특징으로하는 전자조리기.An inverter circuit comprising a switching element, a heating coil, and a resonant capacitor, and converting a DC voltage into a high frequency and supplying the heating coil to heat the load as the switching element is periodically turned on and off, and based on a setting input. And an ON time setting unit for setting the ON time of the switching element and having a control circuit for driving the switching element with the ON time set by the ON time setting unit, wherein the minimum of When the ON time set according to the comparison result of the comparison unit compares the ON time set by the discrimination ON time regulation with the specified ON time (discrimination ON time) of the switching element, and stores it every predetermined period. The ON time is increased until it is equal to or greater than the ON time. ON the electromagnetic cooker, it characterized in that having a time change going back to the ON time. 교류전원에서의 교류를 정류하는 정류회로와, 스위칭소자, 가열코일 및 공진콘덴서를 포함하여 구성되고 상기 스위칭소자가 주기적으로 ON·OFF 됨에따라 상기 정류회로의 직류전압출력을 고주파로 변환하여 상기가열코일에 공급해서 부하를 가열하는 인버터회로와, 설정입력을 기초로하여 상기 스위칭소자의 ON시간을 설정하는 ON시간설정부를 구비하고, 해당 ON시간설정부에서 설정된 ON시간으로 상기 스위칭소자를 구동하는 제어 회로를 갖는 전자조리기에 있어서, 상기 교류전원에서의 입력전류를 검지하는 입력전류검지부와, 비적정부하의 검지에 필요한 최소한의 상기 입력전류(판별입력전류)를 규정하여 기억하는 판별입력전류규정부와, 해당 판별입력전류규정부에서 규정된 판별입력전류와 상기 입력전류검지부에서 검지된 입력전류를 비교하는 비교부와, 해당 비교부의 비교결과에 의해 설정된 입력전류가 판별입력전류 미만인 때에는 일정주기마다에 해당입력전류가 판별 입력전류 이상이 될때까지 상기 스위칭소자의 ON시간을 증가시켜서 일정시간 사이에 비적정부하검지를 실시하여 원래의 설정된 ON시간으로 되돌아가는 ON시간변경부를 갖는 것을 특징으로하는 전자조리기.It includes a rectifier circuit for rectifying AC in the AC power source, a switching element, a heating coil and a resonant capacitor, and the DC voltage output of the rectifying circuit is converted to high frequency as the switching element is periodically turned on and off, and the heating is performed. An inverter circuit for supplying a coil to heat the load, and an ON time setting unit for setting the ON time of the switching element based on a setting input, and driving the switching element with the ON time set by the ON time setting unit. An electronic cooker having a control circuit, comprising: an input current detector for detecting an input current from the AC power supply; and a discrimination input current regulation for defining and storing a minimum of the input current (discrimination input current) required for detection under ineligibility. And comparing the discriminating input current specified by the discriminating input current regulation with the input current detected by the input current detecting unit. When the input current set according to the comparison result of the comparison unit and the comparison unit is less than the discrimination input current, the ON time of the switching element is increased for a predetermined period until the corresponding input current is equal to or greater than the discrimination input current at a predetermined period. An electronic cooker having an ON time changer for performing proper load detection and returning to the originally set ON time. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019930020869A 1992-10-06 1993-10-06 Electromagnetic cooking apparatus KR960004836B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP92-267156 1992-10-06
JP4267156A JPH06119968A (en) 1992-10-06 1992-10-06 Electromagnetic cooking apparatus

Publications (2)

Publication Number Publication Date
KR940009595A true KR940009595A (en) 1994-05-20
KR960004836B1 KR960004836B1 (en) 1996-04-16

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ID=17440874

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019930020869A KR960004836B1 (en) 1992-10-06 1993-10-06 Electromagnetic cooking apparatus

Country Status (2)

Country Link
JP (1) JPH06119968A (en)
KR (1) KR960004836B1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100370733B1 (en) * 1994-09-07 2003-03-19 주식회사 엘지이아이 Method for matching load of microwave oven

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4894191B2 (en) * 2005-08-04 2012-03-14 パナソニック株式会社 Induction heating device
JP5031005B2 (en) * 2009-08-07 2012-09-19 三菱電機株式会社 Induction heating device and induction heating cooker
CN103404229B (en) 2011-02-21 2015-07-29 三菱电机株式会社 Induction heating cooker

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100370733B1 (en) * 1994-09-07 2003-03-19 주식회사 엘지이아이 Method for matching load of microwave oven

Also Published As

Publication number Publication date
JPH06119968A (en) 1994-04-28
KR960004836B1 (en) 1996-04-16

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