KR970058343A - Resonant Electromagnetic Induction Heating Cooker for Multi-Output Control - Google Patents

Resonant Electromagnetic Induction Heating Cooker for Multi-Output Control Download PDF

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Publication number
KR970058343A
KR970058343A KR1019950059761A KR19950059761A KR970058343A KR 970058343 A KR970058343 A KR 970058343A KR 1019950059761 A KR1019950059761 A KR 1019950059761A KR 19950059761 A KR19950059761 A KR 19950059761A KR 970058343 A KR970058343 A KR 970058343A
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KR
South Korea
Prior art keywords
output control
electromagnetic induction
induction heating
working coils
transistor
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Application number
KR1019950059761A
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Korean (ko)
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KR0179531B1 (en
Inventor
정용채
우성택
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구자홍
Lg 전자 주식회사
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Priority to KR1019950059761A priority Critical patent/KR0179531B1/en
Publication of KR970058343A publication Critical patent/KR970058343A/en
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Publication of KR0179531B1 publication Critical patent/KR0179531B1/en

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    • 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
    • H05B6/065—Control, e.g. of temperature, of power for cooking plates or the like using coordinated control of multiple induction coils
    • 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
    • H05B6/04—Sources of current
    • 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
    • H05B6/10—Induction heating apparatus, other than furnaces, for specific applications
    • H05B6/12—Cooking devices

Abstract

본 발명은 전자 유도가열 조리기 있어, 하나의 인버터 회로로서 다수개의 워킹 코일을 동작시킬 수 있도록하여 회로의 구성을 최소화하고, 다수개의 워킹 코일의 출력제어를 실행하게 될 때 발생하게 되는 간섭음을 방지하며, 또한 스위칭 손실을 줄일 수 있도록 한 다출력 제어를 위한 공진형 전자유도 가열 조리 장치에 관한 것이다.The present invention is an electromagnetic induction heating cooker, it is possible to operate a plurality of working coils as one inverter circuit to minimize the configuration of the circuit, and to prevent the interference sound generated when performing the output control of the plurality of working coils In addition, the present invention relates to a resonant electromagnetic induction heating cooking device for multi-output control to reduce switching loss.

종래 주파수 제어에 의한 경우 인접한 워킹 코일 사이에 동작주파수의 차이에 의한 간섭음이 발생하게 되어 워킹 코일의 정확한 출력제어가 이루어지지 않게 되며, 또한 각각의 구성된 인버터만큼 정류수단과 입력단의 정류수단으로부터의 전압을 평활 및 필터링하게 되는 L,G필터를 구성하여야 만 하므로서, 전체 회로가 복잡하게 되며, 기기구성에의 경제성이 결여되는 문제점이 발생하게 된다.According to the conventional frequency control, interference noises are generated between the working coils adjacent to each other by the difference in operating frequency, so that the accurate output control of the working coils is not performed. Since the L and G filters for smoothing and filtering voltages must be configured, the entire circuit becomes complicated and there is a problem in that the economy of device configuration is lacking.

본 발명은 회로구성을 최소화하여 인버터 회로를 구성하고 공통의 정류수단으로부터 인가되는 전원을 입력받아 하나의 인버터 회로로서 시분할 제어를 통하여 두개의 워킹 코일의 출력제어가 이루어지도록 하므로서, 간섭음에 의한 문제를 방지하고, 소프트 스위칭 방식을 이용 스위칭 손실을 줄일 수 있도록 한 다출력 제어를 위한 공진형 전자유도 가열 조리 장치이다.The present invention configures the inverter circuit by minimizing the circuit configuration and receives the power applied from the common rectifying means, so that the output control of the two working coils is made through time division control as one inverter circuit, thereby causing problems due to interference sound. It is a resonant electromagnetic induction heating cooking device for multi-output control to prevent the loss and to reduce the switching loss using a soft switching method.

Description

다출력 제어를 위한 공진형 전자유도 가열 조리 장치Resonant Electromagnetic Induction Heating Cooker for Multi-Output Control

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

제2도는 본 발명 다출력 제어를 위한 공진형 전자유도 가열 조리 장치의 구성을 보인 회로도,2 is a circuit diagram showing the configuration of a resonant type electromagnetic induction heating cooking device for multi-output control of the present invention;

제3도는 본 발명 다출력 제어를 위한 공진형 전자유도 가열 조리 장치에 있어서, 워킹 코일(L11)이 동작하게 될 경우의 각 부 파형을 보인 도면으로서, (가)~(다)는 스위칭 소자의 온/오프 스위칭 파형도, (라)는 도면 (가)~(다)의 스위칭 파형에 의한 동작되는 워킹 코일의 전류변화 파형도, (마)는 공진콘덴서의 전압파형도, (바)~(아)는 각 스위칭 소자의 전압 파형도.3 is a view showing each sub waveform when the working coil L11 is operated in the resonant electromagnetic induction heating cooking device for multi-output control of the present invention. On / off switching waveform diagram, (d) is a waveform diagram of the current change of the working coil operated by the switching waveforms (a) to (c), (e) is a voltage waveform diagram of the resonant capacitor, (bar) ~ ( H) Voltage waveform diagram of each switching element.

Claims (2)

인가되는 DC전원을 필터링하여 입력역률을 향상시키는 콘덴서(C11)와, 별도의 스위칭 전원에 의해 스위칭되어 인가되는 DC전원의 출력을 제어하게 되는 트랜지스터(Q11)와, 상기 트랜지스터(Q11)에 역병렬 접속되는 보호용 다이오드(D11)와, 별도의 스위칭 전원을 베이스로 입력받아 스위칭동작하게 되는 트랜지스터(Q12)와, 상기 트랜지스터(Q12)의 역병렬 다이오드(D12)와, 상기 트랜지스터(Q12)에 병렬접속되는 보조공진용 콘덴서(C12)와, 별도의 스위칭 전원을 입력받아 온/오프 스위칭하여 워킹 코일(L11,L12)을 가열 제어동작시키는 트랜지스터(Q13,Q14)와, 상기 트랜지스터(Q13,Q14)에 각각 역병렬접속되는 보호용 다이오드(D13,D14)와, 워킹 코일(L11,L12)과 각각 공진하게 되는 콘덴서(C13,C14)와, 스위칭 제어에 의해 상기 콘덴서(C13,C14)와 각각 공진하여 가열판을 가열시키는 워킹 코일(L11,L12)과, 보조 다이오드(D15,D16)로 이루어지는 것을 특징으로 하는 다출력 제어를 위한 공진형 전자유도 가열 조리 장치.A capacitor C11 for filtering the applied DC power supply to improve the input power factor, a transistor Q11 for controlling the output of the applied DC power supply switched by a separate switching power supply, and an anti-parallel to the transistor Q11. Parallel connection to the protection diode D11 to be connected, the transistor Q12 which is switched to receive a separate switching power source as a base, the antiparallel diode D12 of the transistor Q12, and the transistor Q12. The auxiliary resonant capacitor C12, and transistors Q13 and Q14 for heating and operating the working coils L11 and L12 by switching on / off by receiving a separate switching power source and the transistors Q13 and Q14. The protective diodes D13 and D14 connected in parallel and parallel, respectively, the capacitors C13 and C14 which resonate with the working coils L11 and L12, respectively, and the heating plates resonate with the capacitors C13 and C14 by switching control, respectively. Heating The resonant electromagnetic induction heating cooking device for multi-output control, characterized in that the working coil (L11, L12) and the auxiliary diode (D15, D16). 제1항에 있어서, 상기 구성된 워킹 코일(L11,L12) 출력제어는 시분할 제어를 통하여 이루어지도록 하는 것을 특징으로 하는 다출력 제어를 위한 공진형 전자유도 가열 조리 장치.2. The resonant electromagnetic induction heating cooking device according to claim 1, wherein the configured working coil (L11, L12) output control is performed through time division control. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019950059761A 1995-12-27 1995-12-27 Resonance type induction heating cooker KR0179531B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019950059761A KR0179531B1 (en) 1995-12-27 1995-12-27 Resonance type induction heating cooker

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019950059761A KR0179531B1 (en) 1995-12-27 1995-12-27 Resonance type induction heating cooker

Publications (2)

Publication Number Publication Date
KR970058343A true KR970058343A (en) 1997-07-31
KR0179531B1 KR0179531B1 (en) 1999-05-15

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KR1019950059761A KR0179531B1 (en) 1995-12-27 1995-12-27 Resonance type induction heating cooker

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