JPS57150731A - Heating device - Google Patents

Heating device

Info

Publication number
JPS57150731A
JPS57150731A JP3606881A JP3606881A JPS57150731A JP S57150731 A JPS57150731 A JP S57150731A JP 3606881 A JP3606881 A JP 3606881A JP 3606881 A JP3606881 A JP 3606881A JP S57150731 A JPS57150731 A JP S57150731A
Authority
JP
Japan
Prior art keywords
temperature
heated material
heating
luminous intensity
micro computer
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP3606881A
Other languages
Japanese (ja)
Inventor
Hajime Tachikawa
Shuji Okawa
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Heating Appliances Co Ltd
Hitachi Netsu Kigu KK
Original Assignee
Hitachi Heating Appliances Co Ltd
Hitachi Netsu Kigu KK
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hitachi Heating Appliances Co Ltd, Hitachi Netsu Kigu KK filed Critical Hitachi Heating Appliances Co Ltd
Priority to JP3606881A priority Critical patent/JPS57150731A/en
Publication of JPS57150731A publication Critical patent/JPS57150731A/en
Pending legal-status Critical Current

Links

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

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Electric Ovens (AREA)

Abstract

PURPOSE:To sense a proper scorch and terminate a heating operation by a method wherein a heating device such as an electric oven etc. is provided with a lamp for radiating a visible light to the heated material and a light sensor for receiving reflected light from the heated material. CONSTITUTION:When a knob 21' of a volume of the operating unit 21 in a heating devide is set at a position shown in the drawing, resistance is transformed to a digital signal by a voltage transducer 24; temperature of the hot air is set by the micro computer 28 to send a signal to a power source 16 and to drive the lamp 10, electric heaters 5, 5', motor 8 and fan 9. The light sensor 14 senses a luminous intensity of the reflected light from the heated material and transmits the signal to the micro computer 28. Temperature of the hot air passed through the electric heaters 5, 5' and the fan 9 is sensed by the temperature sensor 20 and controlled to a predetermined temperature through the power source. Since, when the heated material is started to scorch, both a heating temperature and a variation in luminous intensity of the reflected light for each of the heated materials are already stored in the micro computer, so that a luminous intensity of the heated material is decreased and the heating operation is terminated at the desired value. Therefore, it is always possible to heat the material to a proper temperature depending on the king of the heated material.
JP3606881A 1981-03-13 1981-03-13 Heating device Pending JPS57150731A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3606881A JPS57150731A (en) 1981-03-13 1981-03-13 Heating device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3606881A JPS57150731A (en) 1981-03-13 1981-03-13 Heating device

Publications (1)

Publication Number Publication Date
JPS57150731A true JPS57150731A (en) 1982-09-17

Family

ID=12459404

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3606881A Pending JPS57150731A (en) 1981-03-13 1981-03-13 Heating device

Country Status (1)

Country Link
JP (1) JPS57150731A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0450499A2 (en) * 1990-03-28 1991-10-09 Sharp Kabushiki Kaisha Heat cooking apparatus
DE202005012027U1 (en) * 2005-07-11 2006-11-23 Sinnotec Entwicklungsgesellschaft Ltd. Steam heat fan/hot-air appliance/microwave appliance for cooking and grilling meals in a cooker has a door, a glass panel, lighting and gas/electric heating arranged around a circulating fan

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0450499A2 (en) * 1990-03-28 1991-10-09 Sharp Kabushiki Kaisha Heat cooking apparatus
JPH03124105U (en) * 1990-03-28 1991-12-17
US5170024A (en) * 1990-03-28 1992-12-08 Sharp Kabushiki Kaisha Heat cooking apparatus with photoconductive element and thermistor
DE202005012027U1 (en) * 2005-07-11 2006-11-23 Sinnotec Entwicklungsgesellschaft Ltd. Steam heat fan/hot-air appliance/microwave appliance for cooking and grilling meals in a cooker has a door, a glass panel, lighting and gas/electric heating arranged around a circulating fan

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