JPS6127093A - High frequency heater - Google Patents
High frequency heaterInfo
- Publication number
- JPS6127093A JPS6127093A JP14785684A JP14785684A JPS6127093A JP S6127093 A JPS6127093 A JP S6127093A JP 14785684 A JP14785684 A JP 14785684A JP 14785684 A JP14785684 A JP 14785684A JP S6127093 A JPS6127093 A JP S6127093A
- Authority
- JP
- Japan
- Prior art keywords
- frequency
- power
- solid
- heating chamber
- heating
- 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
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
- H05B6/666—Safety circuits
-
- 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
- H05B6/70—Feed lines
- H05B6/705—Feed lines using microwave tuning
-
- 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
- H05B2206/00—Aspects relating to heating by electric, magnetic, or electromagnetic fields covered by group H05B6/00
- H05B2206/04—Heating using microwaves
- H05B2206/043—Methods or circuits intended to extend the life of the magnetron
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
【発明の詳細な説明】
産業上の利用分野
本発明は、食品などの被加熱物をマイクロ波を用いて高
周波加熱する高周波加熱装置に関する。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a high-frequency heating device for high-frequency heating of an object to be heated, such as food, using microwaves.
従来例の構成とその問題点
従来のこの種の加熱装置は、その加熱熱源にマグネトロ
ンを用いていた。ところで近年の半導体業界の著しい進
歩に相まって、高周波加熱装置の加熱熱源を固体化する
ことが実用レベルに達した。Configuration of Conventional Example and Its Problems Conventional heating devices of this type have used a magnetron as a heating heat source. By the way, with the remarkable progress in the semiconductor industry in recent years, it has become practical to solidify the heating heat source of a high frequency heating device.
高周波加熱装置は、その加熱熱源が発生する高周波電力
を食品などの被加熱物を収容した加熱室に伝送し、被加
熱物を含む加熱室を共振させることにより高周波電力を
加熱室へ閉じこめて、その電力で被加熱物を加熱するも
のである。そして加熱室の共振特性は、被加熱物の種類
や大きさにより変化するため、加熱室が閉じこめること
のできる高周波電力量は、被加熱物に依存することにな
る。これは換言すれば高周波加熱熱源の発生する高周波
電力が１００％加熱室内へ伝送された時、加熱室が、そ
の内部に閉じこめることのできる高周波電力量に対して
余剰の電力量が、加熱室から高周波加熱熱源側へ反射電
力として逆伝送されることを示している。この反射電力
は当然のことながら高周波加熱熱源にて吸収されること
になる。A high-frequency heating device transmits high-frequency power generated by its heating heat source to a heating chamber containing an object to be heated, such as food, and confines the high-frequency power to the heating chamber by causing the heating chamber containing the object to resonate. The electric power is used to heat the object to be heated. Since the resonance characteristics of the heating chamber vary depending on the type and size of the object to be heated, the amount of high-frequency power that the heating chamber can confine depends on the object to be heated. In other words, when 100% of the high-frequency power generated by the high-frequency heating heat source is transmitted into the heating chamber, the surplus power from the heating chamber compared to the high-frequency power that the heating chamber can confine inside the heating chamber. This shows that the reflected power is reversely transmitted to the high-frequency heating heat source side. Naturally, this reflected power will be absorbed by the high frequency heating heat source.
高周波加熱熱源の固体化において、従来のマグＪ、 ）
ロン以上に熱的に弱い固体素子がこの反射電力の影響を
受けて熱的破壊を生ずる可能性を未然に防止しなければ
ならない。In the solidification of high-frequency heating heat sources, conventional mug J, )
It is necessary to prevent the possibility that solid-state elements, which are thermally weaker than Ron, will be affected by this reflected power and cause thermal destruction.
発明の目的
本発明は、この点に鑑みてなされたものであり、高周波
加熱熱源を構成する固体高周波発生部の主要素部品であ
る固体素子を熱的破壊から保護し、信頼性が高く使い勝
手のよい高周波加熱装置を提供するものである。Purpose of the Invention The present invention has been made in view of this point, and has been developed to protect solid-state elements, which are the main components of the solid-state high-frequency generating section constituting the high-frequency heating heat source, from thermal destruction, and to provide highly reliable and easy-to-use This provides a good high frequency heating device.
発明の構成
上記目的に対し、本発明は、加熱室から反射する反射電
力を検出する検出部を設け、この検出信号が予じめ定め
だ基準レベルを越えた時に固体高周波発生部の駆動電源
動作を停止させるとともに、反射電力の異常により駆動
電源の動作が停止したことを報知させる構成により達成
している。Structure of the Invention To achieve the above object, the present invention provides a detection section that detects the reflected power reflected from the heating chamber, and when this detection signal exceeds a predetermined reference level, the driving power supply for the solid-state high frequency generation section is activated. This is achieved by a configuration that not only stops the drive power source but also notifies that the operation of the drive power source has stopped due to an abnormality in reflected power.
実施例の説明 以下本発明を図面を参照して説明する。Description of examples The present invention will be explained below with reference to the drawings.
第１図は、本発明の一実施例を示す高周波加熱装置の構
成図である。FIG. 1 is a configuration diagram of a high frequency heating device showing an embodiment of the present invention.
高周波加熱熱源である固体高周波発生部１が発生する高
周波電力は、同軸伝送線路２を介して被加熱物（図示し
ていない）を収容する加熱室３の一壁面に配設された給
電アンテナ４に伝送される。The high-frequency power generated by the solid-state high-frequency generator 1, which is a high-frequency heating heat source, is transmitted via a coaxial transmission line 2 to a power feeding antenna 4 disposed on one wall of a heating chamber 3 that accommodates an object to be heated (not shown). transmitted to.
この給電アンテナは、高周波電力を加熱室内へ放射する
一方で、加熱室が閉じこめることができる高周波電力に
対して余剰の高周波電力を受けとり固体高周波発生部側
へ逆伝送する。ところで固体高周波発生部の呂力部には
反射電力量に比例した電力量を収りだす方向性結合器あ
るいは、反射電力をすべて収りだすサーキュレータと方
向性結合器を組合わせて構成された反射電力検出部５が
配設されており、加熱室からの反則電力量を等制約に検
出する。This feeding antenna radiates high-frequency power into the heating chamber, while receiving surplus high-frequency power with respect to the high-frequency power that the heating chamber can confine, and transmits it back to the solid-state high-frequency generator side. By the way, in the power section of the solid-state high-frequency generator, there is a directional coupler that collects the amount of power proportional to the amount of reflected power, or a reflected power detector that is configured by combining a circulator and directional coupler that collects all the reflected power. A unit 5 is provided to detect the amount of illegal power from the heating chamber with equal constraints.
一方、固体高周波発生部の主要素部品である固体素子が
許容可能な損失電力量に基づいて決定された最大反射電
力量に対応した基準レベルに対して、反射電力検出部の
検出信号がこの基準レベルを越えた時に、固体高周波発
生部の駆動電源６の動作を停止させる制御部７が設けら
れている。さらに、反射電力の異常に基づいて高周波加
熱の停止がなされたことを使用者に報知する報知部８が
設けられている。On the other hand, the detection signal of the reflected power detector is set to the reference level corresponding to the maximum amount of reflected power determined based on the amount of power loss that the solid-state element, which is the main component of the solid-state high-frequency generator, can tolerate. A control unit 7 is provided that stops the operation of the drive power source 6 of the solid-state high-frequency generator when the level is exceeded. Further, a notification section 8 is provided to notify the user that high-frequency heating has been stopped based on an abnormality in reflected power.
上記基準レベルの設定に開毛では、反射電力検出部にサ
ーキュレータを装荷した場合付加される反射電力吸収用
のダミーロードの許容損失電力量に基づき設定される。The reference level is set based on the allowable power loss amount of a dummy load for absorbing reflected power that is added when a circulator is loaded on the reflected power detection section.
このような構成をとることにより、固体素子あるいは、
ダミーロードの熱的破壊を未然に防止することができる
。By adopting such a configuration, solid-state elements or
Thermal destruction of the dummy load can be prevented.
発明の効果
以上、本発明は加熱室からの反射電力量が予じめ決めた
量を越えた時に、固体高周波発生部の駆動電源の動作を
停止させ、かつ、この動作停止を報知する様に制御した
高周波加熱装置を提供するものであり、以下の効果を奏
する。In addition to the effects of the invention, the present invention is designed to stop the operation of the driving power source of the solid-state high frequency generator when the amount of reflected power from the heating chamber exceeds a predetermined amount, and to notify the user of the stoppage of the operation. This provides a controlled high-frequency heating device, which has the following effects.
（１）固体高周波発生部の主要素部品である固体素子な
どを反射電力による熱的破壊から保護できる。(1) Solid-state elements, which are the main components of the solid-state high-frequency generator, can be protected from thermal damage caused by reflected power.
（２）反射電力が大きく高周波加熱に適さない被加熱物
の選択が自動的にできる。とくに被加熱物がない時の高
周波加熱を防止できる。(2) It is possible to automatically select objects to be heated that have large reflected power and are not suitable for high-frequency heating. In particular, high frequency heating can be prevented when there is no object to be heated.
（３）使用者に高周波加熱停止の理由を報知するととに
より、使い勝手の向上が図れるとともに、使用法に対す
る認識が明白になる。(3) By notifying the user of the reason for stopping the high-frequency heating, it is possible to improve usability and make it clear how to use the device.
図は本発明の一実施例を示す高周波加熱装置の断面図で
ある。
１・・固体高周波発生部、３・加熱室、５・反射電力検
出部、６ ・駆動電源、７ 制御部、８・報知部。The figure is a cross-sectional view of a high-frequency heating device showing an embodiment of the present invention. 1. Solid state high frequency generation section, 3. Heating chamber, 5. Reflected power detection section, 6. Drive power source, 7. Control section, 8. Notification section.
Claims (1)
物を収容する加熱室と、前記加熱室から前記固体高周波
発生部側へ反射する反射電力を検出する検出部と、前記
検出部の検出信号が予じめ定めた基準レベルを越えた時
に前記固体高周波発生部の駆動電源の動作を停止させる
制御部と、前記検出部の検出信号により前記駆動電源の
動作が停止したことを報知する報知部とを備えた高周波
加熱装置。A solid-state high-frequency generator that constitutes a high-frequency heating heat source, a heating chamber that accommodates the object to be heated, a detection unit that detects reflected power reflected from the heating chamber toward the solid-state high-frequency generator, and a detection signal of the detection unit. a control unit that stops the operation of the drive power source for the solid-state high-frequency generator when exceeds a predetermined reference level; and a notification unit that notifies that the operation of the drive power source has stopped based on a detection signal from the detection unit. A high-frequency heating device equipped with
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14785684A JPS6127093A (en) | 1984-07-17 | 1984-07-17 | High frequency heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14785684A JPS6127093A (en) | 1984-07-17 | 1984-07-17 | High frequency heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6127093A true JPS6127093A (en) | 1986-02-06 |
Family
ID=15439800
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14785684A Pending JPS6127093A (en) | 1984-07-17 | 1984-07-17 | High frequency heater |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6127093A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01304687A (en) * | 1988-05-31 | 1989-12-08 | Matsushita Electric Ind Co Ltd | High frequency heating device |
| JP2018522372A (en) * | 2015-06-03 | 2018-08-09 | ワールプール コーポレイション | Method and apparatus for electromagnetic cooking |
| CN109691227A (en) * | 2016-12-23 | 2019-04-26 | 松下电器产业株式会社 | The method for diagnosing electromagnetism cooker |
| JP2020525981A (en) * | 2018-01-31 | 2020-08-27 | 広東美的厨房電器制造有限公司 | Microwave cooking device, control method and storage medium |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4712603U (en) * | 1971-03-16 | 1972-10-14 | ||
| JPS55111089A (en) * | 1979-02-19 | 1980-08-27 | Matsushita Electric Ind Co Ltd | High frequency heater |
| JPS56134491A (en) * | 1980-03-26 | 1981-10-21 | Hitachi Netsu Kigu Kk | High frequency heater |
| JPS5729095B2 (en) * | 1978-05-18 | 1982-06-21 |
-
1984
- 1984-07-17 JP JP14785684A patent/JPS6127093A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4712603U (en) * | 1971-03-16 | 1972-10-14 | ||
| JPS5729095B2 (en) * | 1978-05-18 | 1982-06-21 | ||
| JPS55111089A (en) * | 1979-02-19 | 1980-08-27 | Matsushita Electric Ind Co Ltd | High frequency heater |
| JPS56134491A (en) * | 1980-03-26 | 1981-10-21 | Hitachi Netsu Kigu Kk | High frequency heater |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01304687A (en) * | 1988-05-31 | 1989-12-08 | Matsushita Electric Ind Co Ltd | High frequency heating device |
| JP2018522372A (en) * | 2015-06-03 | 2018-08-09 | ワールプール コーポレイション | Method and apparatus for electromagnetic cooking |
| CN109691227A (en) * | 2016-12-23 | 2019-04-26 | 松下电器产业株式会社 | The method for diagnosing electromagnetism cooker |
| EP3560290A4 (en) * | 2016-12-23 | 2020-08-26 | Whirlpool Corporation | Method of diagnosing an electromagnetic cooking device |
| CN109691227B (en) * | 2016-12-23 | 2021-07-30 | 松下电器产业株式会社 | Method for diagnosing electromagnetic cooking device and electromagnetic cooking device |
| US11382189B2 (en) | 2016-12-23 | 2022-07-05 | Whirlpool Corporation | Method of diagnosing an electromagnetic cooking device |
| JP2020525981A (en) * | 2018-01-31 | 2020-08-27 | 広東美的厨房電器制造有限公司 | Microwave cooking device, control method and storage medium |
| US11582842B2 (en) | 2018-01-31 | 2023-02-14 | Guangdong Midea Kitchen Appliances Manufacturing Co., Ltd. | Microwave cooking device, control method, and storage medium |
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