JPS55158423A - High-frequency heater - Google Patents

High-frequency heater

Info

Publication number
JPS55158423A
JPS55158423A JP6423779A JP6423779A JPS55158423A JP S55158423 A JPS55158423 A JP S55158423A JP 6423779 A JP6423779 A JP 6423779A JP 6423779 A JP6423779 A JP 6423779A JP S55158423 A JPS55158423 A JP S55158423A
Authority
JP
Japan
Prior art keywords
wall surface
metal plate
heating chamber
temperature
frequency
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
JP6423779A
Other languages
Japanese (ja)
Inventor
Kiyohiro Oshima
Tadashi Funamizu
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 JP6423779A priority Critical patent/JPS55158423A/en
Publication of JPS55158423A publication Critical patent/JPS55158423A/en
Pending legal-status Critical Current

Links

Landscapes

  • Constitution Of High-Frequency Heating (AREA)
  • Electric Ovens (AREA)

Abstract

PURPOSE: To detect a loadless baking state rapidly and to prevent damage on a high-frequency oscillator by a method wherein a metal plate is arranged in parallel with the inside wall surface of a heating chamber, and a temperature detecting element is arranged on the outside wall surface of the heating chamber in register with the metal plate.
CONSTITUTION: In a high-frequency heater comprising a high-frequency oscillator 4 connected with a heating chamber 1 through a waveguide 5, a metal plate 7 is fitted to the inside wall surface of the heating chamber 1 in parallel with the wall surface by screws 9 or the like, and a temperature detecting elements 8 for detecting the temperature of the wall surface 1a of the heating chamber 1 is arranged in register with the metal plate 7, thereby forming a symmetric micro-wave strip line between the metal plate 7 and the wall surface 1a. When the high-frequency heater is in a loadless baking condition, high-frequency electric and magnetic fields are generated between the metal plate 7 and the wall surface 1a, a high-frequency current flows in the plate 7 and the surface 1a, and the wall surface 1a is heated to an abnormally high temperature. This temperature rise is detected by the temperature detector 8, and the oscillator 4 is stopped.
COPYRIGHT: (C)1980,JPO&Japio
JP6423779A 1979-05-24 1979-05-24 High-frequency heater Pending JPS55158423A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6423779A JPS55158423A (en) 1979-05-24 1979-05-24 High-frequency heater

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6423779A JPS55158423A (en) 1979-05-24 1979-05-24 High-frequency heater

Publications (1)

Publication Number Publication Date
JPS55158423A true JPS55158423A (en) 1980-12-09

Family

ID=13252315

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6423779A Pending JPS55158423A (en) 1979-05-24 1979-05-24 High-frequency heater

Country Status (1)

Country Link
JP (1) JPS55158423A (en)

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