KR930001752A - Automatic heating device of microwave oven using pyroelectric sensor - Google Patents

Automatic heating device of microwave oven using pyroelectric sensor Download PDF

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Publication number
KR930001752A
KR930001752A KR1019910010940A KR910010940A KR930001752A KR 930001752 A KR930001752 A KR 930001752A KR 1019910010940 A KR1019910010940 A KR 1019910010940A KR 910010940 A KR910010940 A KR 910010940A KR 930001752 A KR930001752 A KR 930001752A
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KR
South Korea
Prior art keywords
measuring
pyroelectric sensor
heating
recording
signal processing
Prior art date
Application number
KR1019910010940A
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Korean (ko)
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KR940006523B1 (en
Inventor
양우종
김응수
전효식
김정태
Original Assignee
이헌조
주식회사 금성사
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Priority to KR1019910010940A priority Critical patent/KR940006523B1/en
Publication of KR930001752A publication Critical patent/KR930001752A/en
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Publication of KR940006523B1 publication Critical patent/KR940006523B1/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
    • H05B6/64—Heating using microwaves
    • H05B6/66—Circuits
    • H05B6/68—Circuits for monitoring or control

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Electric Ovens (AREA)
  • Control Of High-Frequency Heating Circuits (AREA)

Abstract

내용 없음No content

Description

초전 센서를 이용한 전자레인지의 자동 가열장치Automatic heating device of microwave oven using pyroelectric sensor

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

제3도는 본 발명의 초전센서를 이용한 전자레인지의 블록구성도.3 is a block diagram of a microwave oven using the pyroelectric sensor of the present invention.

제4도는 본 발명에 적용한 초전센서의 평면구성도.4 is a plan view of a pyroelectric sensor applied to the present invention.

제5도는 본 발명의 자동 가열장치에서 감지신호 처리수단의 실시예 회로도.5 is a circuit diagram of an embodiment of a detection signal processing means in the automatic heating device of the present invention.

제6도는 본 발명에 적용한 초전센서의 온도에 따른 정전용량값 변화관계를 나타낸 특성도.6 is a characteristic diagram showing a change in capacitance value according to the temperature of the pyroelectric sensor applied to the present invention.

제7도는 제5도에 도시된 감지신호 처리수단의 감지결과에 따른 회로 각부분의 신호파형도.FIG. 7 is a signal waveform diagram of each part of a circuit according to a sensing result of the sensing signal processing means shown in FIG.

제8도는 본 발명의 가열제어 과정을 도시한 플로우챠트.8 is a flowchart showing a heating control process of the present invention.

Claims (1)

전자레인지 가열실(11)의 공기 및 수증기에 배출구(17)에 설치되어 수증기 온도감지에 따라 정전용량값이 가변되는 초전센서(23)와, 초전센서(23)의 정전용량값을 발진팩터로 하는 발진기가 구비되어 정전용량값 변화를 타임튜티비 변화로 판독하여 요리 진행정보로 출력하는 감지신호 처리수단(24)과, 가열개시후 소정시간이 경과되면 상기 감지신호 처리수단(24)에서 공급되는 감지신호의 신호폭을 측정하는 제1측정수단(27)과, 제1측정수단(27)의 데이타를 저장하는 제1기록수단(28)과, 음식물의 종류 및 제1기록수단(28)의 주파수 데이타에 따라 각각의 음식물의 요리완료 상태판별의 기준이 되는 기준 주파수를 선택하는 주파수 선정수단(29)과, 요리진행중에 감지신호 처리수단(24)에서 출력되는 감지신호의 신호폭을 측정하는 제2측정수단(30)과, 제2측정수단(30)의 데이타를 저장하는 제2기록수단(31)과, 상기 제2기록수단(31)의 데이타와 주파수 선정수단(29)의 신호감지 폭을 비교하여 음식물(12)의 가열상태를 판별하는 비교/판별수단(32)과, 비교/판별수단(32)의 판별결과에 준하여 추가가옅 또는 가열 종료여부를 제어하는 출력 제어수단(33)을 구비하여 구성된 초전센서를 이용한 전자레인지의 자동가열장치.The capacitance of the pyroelectric sensor 23 and the pyroelectric sensor 23, which are installed at the outlet 17 of the air and steam in the microwave heating chamber 11 and varies in accordance with the steam temperature sensing, are used as oscillation factors. A sensing signal processing means 24 which is provided with an oscillator which reads a change in capacitance value as a time duty ratio change and outputs it as cooking progress information, and is supplied from the sensing signal processing means 24 when a predetermined time elapses after the start of heating. A first measuring means 27 for measuring a signal width of the detected detection signal, a first recording means 28 for storing data of the first measuring means 27, a kind of food and a first recording means 28 A frequency selecting means 29 for selecting a reference frequency, which is a reference for discrimination of cooking completion status of each food item, and measuring a signal width of a detection signal output from the detection signal processing means 24 during cooking. The second measuring means 30 and the second measuring number The heating state of the food 12 is determined by comparing the signal recording width of the second recording means 31 storing the data of 30 with the data of the second recording means 31 and the frequency selecting means 29. Automatic comparison of the microwave oven using a pyroelectric sensor comprising a comparison / determination means (32) and an output control means (33) for controlling whether the heating is finished lightly or not according to the determination result of the comparison / determination means (32). Heating device. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019910010940A 1991-06-28 1991-06-28 Automatic heating apparatus of microwave oven KR940006523B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019910010940A KR940006523B1 (en) 1991-06-28 1991-06-28 Automatic heating apparatus of microwave oven

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019910010940A KR940006523B1 (en) 1991-06-28 1991-06-28 Automatic heating apparatus of microwave oven

Publications (2)

Publication Number Publication Date
KR930001752A true KR930001752A (en) 1993-01-16
KR940006523B1 KR940006523B1 (en) 1994-07-21

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ID=19316497

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019910010940A KR940006523B1 (en) 1991-06-28 1991-06-28 Automatic heating apparatus of microwave oven

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KR (1) KR940006523B1 (en)

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Publication number Publication date
KR940006523B1 (en) 1994-07-21

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