KR970062504A - High Frequency Induction Heating Cooker - Google Patents

High Frequency Induction Heating Cooker Download PDF

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Publication number
KR970062504A
KR970062504A KR1019960002925A KR19960002925A KR970062504A KR 970062504 A KR970062504 A KR 970062504A KR 1019960002925 A KR1019960002925 A KR 1019960002925A KR 19960002925 A KR19960002925 A KR 19960002925A KR 970062504 A KR970062504 A KR 970062504A
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KR
South Korea
Prior art keywords
induction heating
frequency induction
high frequency
cooking vessel
resonance
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Application number
KR1019960002925A
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Korean (ko)
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KR100204886B1 (en
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이종학
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이종학
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Publication date
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Priority to KR1019960002925A priority Critical patent/KR100204886B1/en
Publication of KR970062504A publication Critical patent/KR970062504A/en
Application granted granted Critical
Publication of KR100204886B1 publication Critical patent/KR100204886B1/en

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Classifications

    • 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
    • H05B6/00—Heating by electric, magnetic or electromagnetic fields
    • H05B6/02—Induction heating
    • H05B6/06—Control, e.g. of temperature, of power
    • H05B6/062—Control, e.g. of temperature, of power for cooking plates or the like
    • 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
    • H05B2213/00—Aspects relating both to resistive heating and to induction heating, covered by H05B3/00 and H05B6/00
    • H05B2213/05—Heating plates with pan detection means

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • General Induction Heating (AREA)
  • Induction Heating Cooking Devices (AREA)
  • Cookers (AREA)

Abstract

본 발명은 고주파 유도가열 조리장치에 관한 것으로서, 상용직류전압이 가장 낮은때인 제로크로싱 초기에 조리용기 감지동작을 수행하여, 조리용기가 존재하지 않거나 부적합한 조리용기를 사용하였다고 판단되면 즉시 인버터동작을 정지시킴으로써 IGBT를 보호하고, 위상 비교기와 단안정발진기의 조합에 의해 인버터발진펄스가 생성되도록 함으로써 간소화된 회로를 구성할 수 있도록 하기 위하여, 대상물을 가열하는 유도가열코일과, 유도가열코일과 공진커패시터가 서로 병렬로 접속된 LC공진회로와, LC공진회로에 전기에너지를 스위칭하기 위한 IGBT를 구비하는 고주파 유도가열 조리장치에 있어서; 조리용기의 유무와 그 적합성 여부 판단을 위한 조리용기 감지부; 및 인버터펄스신호를 발생시키기 위한 단안정발진기를 구비하였다.The present invention relates to a high-frequency induction heating cooking apparatus, and more particularly, to a high-frequency induction heating cooking apparatus capable of performing a cooking vessel sensing operation at an early stage of zero crossing when a commercial DC voltage is lowest, In order to protect the IGBT by stopping the inverter and to generate a inverter oscillation pulse by a combination of the phase comparator and the monostable oscillator, an induction heating coil for heating the object, and an induction heating coil and a resonance capacitor And an IGBT for switching electrical energy to an LC resonance circuit, the high frequency induction heating cooking apparatus comprising: an LC resonance circuit connected in parallel to an LC resonance circuit; A cooking vessel sensing unit for determining the presence or absence of the cooking vessel and determining whether the vessel is suitable or not; And a monostable oscillator for generating an inverter pulse signal.

Description

고주파 유도가열 조리장치High Frequency Induction Heating Cooker

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is a trivial issue, I did not include the contents of the text.

제3도는 본 발명에 의한 고주파 유도가열 조리장치의 상세회로도.FIG. 3 is a detailed circuit diagram of a high frequency induction heating cooking apparatus according to the present invention. FIG.

제4도는 제3도에 도시된 각부에 대한 전원주파수를 기준으로 한 파형도.FIG. 4 is a waveform diagram based on the power supply frequency for each part shown in FIG. 3; FIG.

제5도는 제3도에 도시된 각부에 대한 인버터주파수를 기준으로 한 파형도이다.FIG. 5 is a waveform diagram based on the inverter frequency for each part shown in FIG.

Claims (5)

대상물을 가열하는 유도가열코일과, 유도가열코일과 공진커패시터가 서로 병렬로 접속된 LC공진회로와, LC공진회로에 전기에너지를 스위칭하기 위한 IGBT를 구비하는 고주파 유도가열 조리장치에 있어서 : 조리용기의 유무와 그 적합성 여부 판단을 위한 조리용기 감지부; 및 인버터펄스신호를 발생시키기 위한 단안정발진기를 구비하는 고주파 유도가열 조리장치.An induction heating coil for heating an object, an LC resonance circuit in which an induction heating coil and a resonance capacitor are connected in parallel to each other, and an IGBT for switching electric energy in an LC resonance circuit, comprising: And a cooking vessel detecting unit for determining whether the cooking vessel is suitable or not; And a monostable oscillator for generating an inverter pulse signal. 제1항에 있어서, 상기 조리용기 감지부는, 쵸크코일과 유도가열코일과 공진캐패시터가 서로 접속된 지점으로부터 고역통과커패시터를 통해 공급된 공진전압성분을 신호원으로 이용하도록 한 것을 특징으로 하는 고주파 유도가열 조리장치.The microwave oven according to claim 1, wherein the cooking vessel sensing unit uses a resonance voltage component supplied through a high-pass capacitor from a point where the choke coil, the induction heating coil, and the resonance capacitor are connected to each other as a signal source. Heating cooker. 제2항에 있어서, 상기 공진전압성분은, 윈도우/마스크 트랜지스터를 이용한 윈도우/마스크처리를 통하여 조리용기의 유무에 따라 그 크기가 변화하는 삼각파형으로 변환되도록 한 것을 특징으로 하는 고주파 유도가열 조리장치.The high frequency induction heating cooking apparatus according to claim 2, wherein the resonance voltage component is converted into a triangular waveform whose magnitude varies according to the presence or absence of the cooking vessel through a window / mask process using a window / . 제1항에 있어서, 상기 단안정발진기는, 마이크로프로세서로부터 초기 트리거신호를 입력받아 발진을 시작하도록 한 것을 특징으로 하는 고주파 유도가열 조리장치.The high frequency induction heating cooking apparatus according to claim 1, wherein the monostable oscillator receives an initial trigger signal from the microprocessor and starts oscillation. 제1항에 있어서, 상기 단안정발진기는, 위성비교기로부터 위성차신호를 입력받아 발진을 지속하도록 한것을 특징으로 하는 고주파 유도가열 조리장치.The high frequency induction heating cooking apparatus according to claim 1, wherein the monostable oscillator receives the satellite difference signal from the satellite comparator and continues oscillation. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: It is disclosed by the contents of the first application.
KR1019960002925A 1996-02-07 1996-02-07 Induction heating cooker KR100204886B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019960002925A KR100204886B1 (en) 1996-02-07 1996-02-07 Induction heating cooker

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019960002925A KR100204886B1 (en) 1996-02-07 1996-02-07 Induction heating cooker

Publications (2)

Publication Number Publication Date
KR970062504A true KR970062504A (en) 1997-09-12
KR100204886B1 KR100204886B1 (en) 1999-06-15

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KR1019960002925A KR100204886B1 (en) 1996-02-07 1996-02-07 Induction heating cooker

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023224221A1 (en) * 2022-05-18 2023-11-23 삼성전자주식회사 Induction heating apparatus and control method for same

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101927737B1 (en) 2016-11-16 2018-12-11 엘지전자 주식회사 Cooking container detecting device, method thereof and induction heating cooking appliance
KR101999511B1 (en) * 2017-08-04 2019-07-11 엘지전자 주식회사 Induction heat cooking apparatus and operating method thereof
KR102016219B1 (en) * 2017-09-29 2019-08-29 엘지전자 주식회사 Induction heating and wireless power transferring device having improved target detection algorithm
KR102436144B1 (en) * 2017-10-19 2022-08-25 엘지전자 주식회사 Induction heating device having improved target detection accuracy and, induction heating system comprising the same

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023224221A1 (en) * 2022-05-18 2023-11-23 삼성전자주식회사 Induction heating apparatus and control method for same

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