KR970068741A - Dual pole-buried type electromagnetic induction heating device - Google Patents

Dual pole-buried type electromagnetic induction heating device Download PDF

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Publication number
KR970068741A
KR970068741A KR1019960006379A KR19960006379A KR970068741A KR 970068741 A KR970068741 A KR 970068741A KR 1019960006379 A KR1019960006379 A KR 1019960006379A KR 19960006379 A KR19960006379 A KR 19960006379A KR 970068741 A KR970068741 A KR 970068741A
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KR
South Korea
Prior art keywords
heating
electromagnetic induction
type electromagnetic
induction heating
smoothing capacitor
Prior art date
Application number
KR1019960006379A
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Korean (ko)
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KR100202562B1 (en
Inventor
정용채
노희석
Original Assignee
구자홍
엘지전자 주식회사
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Application filed by 구자홍, 엘지전자 주식회사 filed Critical 구자홍
Priority to KR1019960006379A priority Critical patent/KR100202562B1/en
Publication of KR970068741A publication Critical patent/KR970068741A/en
Application granted granted Critical
Publication of KR100202562B1 publication Critical patent/KR100202562B1/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
    • H05B6/04—Sources of current
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M1/00—Details of apparatus for conversion
    • H02M1/42—Circuits or arrangements for compensating for or adjusting power factor in converters or inverters
    • H02M1/4208—Arrangements for improving power factor of AC input
    • H02M1/4233—Arrangements for improving power factor of AC input using a bridge converter comprising active switches
    • 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
    • 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
    • H05B6/1209—Cooking devices induction cooking plates or the like and devices to be used in combination with them

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • General Induction Heating (AREA)
  • Induction Heating Cooking Devices (AREA)

Abstract

본 발명은 듀얼 풀-브릿지형 전자 유도 가열장치에 관한 것으로, 종래에는 주파수 제어를 통해서 출력을 제어함에 따라 가령 각 가열판위에 다른 크기의 용기를 놓거나 또는 다른 출력을 내고 있을 경우에는 인접한 가열판 사이에서 동작주파수의 차이에 의한 간섭음이 발생하는 문제점이 있다. 따라서 본 발명은 입력전원의 역률을 높이기 위해 평활하여 일정한 직류전압을 출력하는 평활용 커패시터와, 상기 평활용 커패시터로 부터 입력되는 직류전압에 따라 발열하여 하나 이상의 가열판을 선택적으로 가열하는 워킹코일과 공진 커패시터로 이루어진 가열수단과, 별도의 제어신호에 의해 스위칭 동작하여 상기 가열수단이 선택적으로 가열되도록 하는 스위칭수단으로 구성하여 하나 이상의 가열판을 가열할 때 가열판과 가열판 사이에서 발생하는 간섭음을 제거하여 보다 안정된 공간에서 조리를 수행할 수 있도록 한다.[0001] The present invention relates to a dual full-bridge type electromagnetic induction heating apparatus, and more particularly, to a dual full-bridge type electromagnetic induction heating apparatus in which output is controlled through frequency control, There is a problem that an interference sound due to a difference in frequency occurs. Accordingly, the present invention provides a power supply apparatus for a power supply apparatus that includes a smoothing capacitor for smoothing and outputting a constant DC voltage to increase a power factor of an input power source, a working coil for selectively heating one or more heating plates according to a DC voltage input from the smoothing capacitor, And a switching means for selectively heating the heating means by switching operation by a separate control signal so as to remove an interference sound generated between the heating plate and the heating plate when the at least one heating plate is heated, So that cooking can be performed in a stable space.

Description

듀얼 풀-부릿지형 전자 유도 가열장치Dual full-burded type electromagnetic induction heating device

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

제 2 도는 본 발명 듀얼 풀-브릿지형 전자 유도 가열장치의 회로구성도, 제 3 도는 제 2 도에서, 워킹코일(Lr1) 구동시의 스위칭 상태 및 인덕터 전류 파형도, 제 4 도는 본 발명에서 4개의 가열판을 갖는 전자 유도 가열장치의 일실시예.FIG. 2 is a circuit diagram of a dual full-bridge type electromagnetic induction heating apparatus according to the present invention. FIG. 3 is a switching state and an inductor current waveform when a working coil L r1 is driven. An embodiment of an electromagnetic induction heating apparatus having four heating plates.

Claims (2)

입력전원의 역률을 높이기 위해 평활하여 일정한 직류전압을 출력하는 평활용 커패시터와, 역병렬 다이오드를 갖는 스위치 6개가 세개씩 연결(S1-S3)(S4-S6)되서 상기 평활용 커패시터에 병렬연결되어 별도의 제어신호에 의해 스위칭 동작하여 다수의 가열판을 선택하도록 하는 스위칭 수단과, 두개의 워킹코일과 직렬로 연결된 공진용 커패시터가 있고 이중 스위치(S1)와 (S2)의연결점과 스위치(S4)와 (S5)의 연결점에 하나가 연결되고 나머지 하나는 스위치(S2)와 (S3)의 연결점과 스위치(S5)와 (S6)의 연결점 사이에 연결되어 상기 스위칭수단에 의해 입력되는 전원에 따라 발열하여 하나 이상의 가열판을 가열할 수 있도록 한 것을 특징으로 하는 듀얼 풀-브릿지형 전자 유도 가열장치.A smoothing capacitor for smoothing and outputting a constant direct current voltage to increase the power factor of the input power source and six switches having anti-parallel diodes are connected in parallel to the smoothing capacitor by connecting three (S1-S3) A switching means for switching a plurality of heating plates by a separate control signal to select a plurality of heating plates and a resonance capacitor connected in series with two working coils. The switches S1 and S2 and the switch S4, One is connected to the connection point of the switch S5 and the other is connected between the connection point of the switches S2 and S3 and the connection point of the switches S5 and S6 to generate heat according to the power input by the switching means Wherein the at least one heating plate is capable of heating at least one heating plate. 제1항에 있어서, 평활용 커패시터에 병렬로 N개를 병렬로 구성하여 2N개의 가열판을 동작시킬 수 있도록 하는 것을 특징으로 하는 듀얼 풀-브릿지형 전자 유도 가열장치.2. The dual full-bridge type electromagnetic induction heating apparatus according to claim 1, wherein N parallel elements are arranged in parallel in the smoothing capacitor so that 2N heating plates can be operated. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: It is disclosed by the contents of the first application.
KR1019960006379A 1996-03-11 1996-03-11 Dual full bridge type induction heating cooker KR100202562B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019960006379A KR100202562B1 (en) 1996-03-11 1996-03-11 Dual full bridge type induction heating cooker

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019960006379A KR100202562B1 (en) 1996-03-11 1996-03-11 Dual full bridge type induction heating cooker

Publications (2)

Publication Number Publication Date
KR970068741A true KR970068741A (en) 1997-10-13
KR100202562B1 KR100202562B1 (en) 1999-06-15

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Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019960006379A KR100202562B1 (en) 1996-03-11 1996-03-11 Dual full bridge type induction heating cooker

Country Status (1)

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Publication number Publication date
KR100202562B1 (en) 1999-06-15

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