JPS60118891U

JPS60118891U - High frequency heating device

Info

Publication number: JPS60118891U
Application number: JP693084U
Authority: JP
Inventors: 岩淵　康司; 杉本　賢治; 哲男窪田
Original assignee: 株式会社日立ホームテック
Priority date: 1984-01-21
Filing date: 1984-01-21
Publication date: 1985-08-10

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of drawings]

第１図は本考案の一実施例による高周波加熱装置の主要
部を示すブロックダイヤグラムで、第２図〜第４図は受
皿５内に埋め込んだ受信アンテナ７の形状例を示す正面
図で、第５図は受信アンテナ７の一端７ａから受皿５の
側面を見た部分拡大図で、第６図は第５図におけるＸＹ
矢印方向から見た受信アンテナ７の一端７ａ付近の拡大
図上、第７図は受信７を加熱室３内に入れた状態での減
衰器８付近の断面図で、第８図は食品温度と誘電体損失
Ｅγ″との関係を示す説明図で、第９図は高周波エネル
ギーによる加熱時間と受信信号レベルとの関係を系す説
明図である。１・・・高周波発振器、３・・・加熱室、５・・・誘電
体からなる受皿、６・・・被加熱物、７・・・受信アン
テナ、７ａ・・・受信アンテナ７の一端、７ｃ・・・帯
状金属板、８・・・減衰器。FIG. 1 is a block diagram showing the main parts of a high-frequency heating device according to an embodiment of the present invention, and FIGS. 5 is a partially enlarged view of the side of the saucer 5 seen from one end 7a of the receiving antenna 7, and FIG. 6 shows the XY direction in FIG.
On the enlarged view of the vicinity of one end 7a of the receiving antenna 7 seen from the direction of the arrow, FIG. 7 is a cross-sectional view of the vicinity of the attenuator 8 with the receiving antenna 7 placed in the heating chamber 3, and FIG. This is an explanatory diagram showing the relationship between the dielectric loss Eγ'' and FIG. 9 is an explanatory diagram showing the relationship between the heating time by high frequency energy and the received signal level. 1...High frequency oscillator, 3...Heating chamber, 5... saucer made of dielectric, 6... object to be heated, 7... receiving antenna, 7a... one end of receiving antenna 7, 7c... band-shaped metal plate, 8... attenuation vessel.

Claims

[Scope of utility model registration request]

A heating chamber 3 that houses an object to be heated 6, a high frequency oscillator 1 that supplies high frequency energy into the heating chamber 3, and a part of the high frequency energy from the high frequency oscillator 1 to the object to be heated 6.
In a high-frequency heating device that includes a receiving antenna 7 that extracts a signal corresponding to a temperature change in dielectric loss, and controls the oscillation of a high-frequency oscillator 1 using the signal, a saucer 5 made of a dielectric material on which an object to be heated 6 is placed. A receiving antenna 7 is embedded inside the receiving antenna 7, one end 7a of the receiving antenna 7 protrudes outside the saucer 5, and it is connected to an attenuator 8 provided on the wall surface of the heating chamber 3 so as to be freely accessible and detachable, and one end 7a is connected to a metal round rod. A high-frequency heating device characterized in that the rest is formed by a band-shaped metal plate 7c.