JPS56936A - Ceiling plate structure for high-frequency heater - Google Patents

Ceiling plate structure for high-frequency heater

Info

Publication number
JPS56936A
JPS56936A JP7462479A JP7462479A JPS56936A JP S56936 A JPS56936 A JP S56936A JP 7462479 A JP7462479 A JP 7462479A JP 7462479 A JP7462479 A JP 7462479A JP S56936 A JPS56936 A JP S56936A
Authority
JP
Japan
Prior art keywords
bottom portion
ceiling plate
raised bottom
raised
plate structure
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
JP7462479A
Other languages
Japanese (ja)
Inventor
Seiichi Sato
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric Co Ltd
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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP7462479A priority Critical patent/JPS56936A/en
Publication of JPS56936A publication Critical patent/JPS56936A/en
Pending legal-status Critical Current

Links

Landscapes

  • Electric Ovens (AREA)

Abstract

PURPOSE: To prevent a ceiling plate against warp due to thermal strain by a method wherein a raised bottom portion is formed at the central portion of a ceiling plate, the diameter of the upper surface portion of the ceiling plate is set to be 0.6W0.8 times as large as the size of the bottom portion of the ceiling plate, and the height of the raised bottom portion is set to be not less than 3m/m.
CONSTITUTION: A flat raised bottom portion 11 circular in its plan view is formed at the central portion of the bottom portion of a ceiling plate 10, and a groove- shaped bottom portion 12 is formed around the raised bottom portion 11, with a tapered bottom wall portion 13 therebetween. The diameter ϕ of the raised bottom portion 11 is set to be 0.6W0.8 times as large as the size W of the bottom portion of the ceiling plate as a whole, while the height H of the raised bottom portion 11 is set to be not less than 3m/m. Accordingly, in the case of cooking by a heater, the ceiling plate 10 is free from a warping phenomenon due to thermal strain even if the temperature of the preheated ceiling plate 10 is partially and suddenly lowered by food placed on the raised bottom portion 11.
COPYRIGHT: (C)1981,JPO&Japio
JP7462479A 1979-06-15 1979-06-15 Ceiling plate structure for high-frequency heater Pending JPS56936A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7462479A JPS56936A (en) 1979-06-15 1979-06-15 Ceiling plate structure for high-frequency heater

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7462479A JPS56936A (en) 1979-06-15 1979-06-15 Ceiling plate structure for high-frequency heater

Publications (1)

Publication Number Publication Date
JPS56936A true JPS56936A (en) 1981-01-08

Family

ID=13552520

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7462479A Pending JPS56936A (en) 1979-06-15 1979-06-15 Ceiling plate structure for high-frequency heater

Country Status (1)

Country Link
JP (1) JPS56936A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63226544A (en) * 1987-03-17 1988-09-21 Matsushita Electric Ind Co Ltd Oven tray

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63226544A (en) * 1987-03-17 1988-09-21 Matsushita Electric Ind Co Ltd Oven tray

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