JPH0590885U - Microwave heating device - Google Patents

Microwave heating device

Info

Publication number
JPH0590885U
JPH0590885U JP2359491U JP2359491U JPH0590885U JP H0590885 U JPH0590885 U JP H0590885U JP 2359491 U JP2359491 U JP 2359491U JP 2359491 U JP2359491 U JP 2359491U JP H0590885 U JPH0590885 U JP H0590885U
Authority
JP
Japan
Prior art keywords
microwave
microwave heating
heated
heating device
heating furnace
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.)
Granted
Application number
JP2359491U
Other languages
Japanese (ja)
Other versions
JP2539630Y2 (en
Inventor
吉井清明
都谷茂
堀川栄
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.)
Shikoku Instrumentation Co Ltd
Original Assignee
Shikoku Instrumentation 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 Shikoku Instrumentation Co Ltd filed Critical Shikoku Instrumentation Co Ltd
Priority to JP1991023594U priority Critical patent/JP2539630Y2/en
Publication of JPH0590885U publication Critical patent/JPH0590885U/en
Application granted granted Critical
Publication of JP2539630Y2 publication Critical patent/JP2539630Y2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Control Of High-Frequency Heating Circuits (AREA)
  • Constitution Of High-Frequency Heating (AREA)

Abstract

(57)【要約】 【目的】 安価に構成でき、可動部材を設ける必要がな
く、均一に被加熱体を加熱することができ、被加熱体の
温度の連続的測定もできる、長時間使用に耐え得るマイ
クロ波加熱装置を提供することを目的とする。 【構成】 タイマ2から出力される切換信号により切換
スイッチ1が順次切り換えられ、複数個のマグネトロン
a,4b,4cが順次励起される。該複数個のマグネト
ロン4a,4b,4cから射出されたマイクロ波は、それ
ぞれ導波管5a,5b,5cを介して、マイクロ波加熱炉
内の異なる場所から順次マイクロ波が射出され、該マイ
クロ波加熱炉内の被加熱体が均一に加熱される。
(57) [Abstract] [Purpose] It can be constructed at low cost, does not require a movable member, can uniformly heat a heated object, and can continuously measure the temperature of the heated object. An object is to provide a microwave heating device that can withstand. [Configuration] changeover switch 1 is successively switched by a switching signal outputted from the timer 2, a plurality of magnetrons 4 a, 4 b, 4 c are sequentially excited. The microwaves emitted from the plurality of magnetrons 4 a , 4 b , 4 c are sequentially generated from different locations in the microwave heating furnace through the waveguides 5 a , 5 b , 5 c , respectively. The material to be heated is injected and heated uniformly in the microwave heating furnace.

Description

【考案の詳細な説明】[Detailed description of the device]

【0001】[0001]

【産業上の利用分野】[Industrial applications]

本考案は、マイクロ波加熱装置に係り、特に長時間加熱を継続する工業用の使 用に適したマイクロ波加熱装置に関する。 The present invention relates to a microwave heating device, and more particularly to a microwave heating device suitable for industrial use in which heating is continued for a long time.

【0002】[0002]

【従来の技術】[Prior Art]

従来から、工業用に用いられるマイクロ波加熱装置においては、例えば24時 間連続使用等の過酷な使用形態に耐え得るため、十分な耐久性を持ったマイクロ 波発生器が用いられていた。 In the past, in microwave heating devices used for industrial purposes, microwave generators having sufficient durability have been used because they can withstand severe usage such as continuous use for 24 hours.

【0003】 また、多くの場合、被加熱体を均一に加熱することが要求され、このため、タ ーンテーブル上に被加熱体を載置し、該ターンテーブルを回転させることにより 、被加熱体への均一加熱を行ったり、マイクロ波発生器の前にスターラファンを 取り付け、該スターラファンを回転させることによりマイクロ波を撹拌して被加 熱体を均一に加熱するようにしたり、導波管をマイクロ波加熱装置内の複数箇所 に設けてこの複数の導波管から同時にマイクロ波を射出することにより、被加熱 体の均一加熱を行うようにしていた。Further, in many cases, it is required to uniformly heat the object to be heated. Therefore, by placing the object to be heated on the turntable and rotating the turntable, the object to be heated is heated. Of the microwave, or by installing a stirrer fan in front of the microwave generator and rotating the stirrer fan to stir the microwaves and heat the heated object evenly. The microwave heating device is provided at a plurality of locations and microwaves are simultaneously emitted from the plurality of waveguides to uniformly heat the object to be heated.

【0004】[0004]

【考案が解決しようとする課題】[Problems to be solved by the device]

従来の工業用に使用されるマイクロ波加熱装置は、マイクロ波発生器に十分な 耐久性が要求されるため、装置全体が高価となってしまったり、均一加熱のため に、ターンテーブルやスターラファン等の可動部材を設ける場合は、該可動部材 部での故障発生の頻度が高くなってしまうという欠点があった。また、ターンテ ーブルを用いる場合は、被加熱体の温度を連続して測定する場合に、接触式の温 度計の使用が困難になるという欠点がある。更に、マイクロ波加熱装置内の複数 箇所に複数の導波管を設け、この複数の導波管から同時にマイクロ波を射出する 方法では、複数の導波管から射出されたマイクロ波が相互に干渉しあい、被加熱 体が均一に加熱されない場合があった。 Conventional microwave heating devices used for industrial applications require the microwave generator to have sufficient durability, which makes the entire device expensive, and for uniform heating, a turntable or stirrer fan is required. When a movable member such as the above is provided, there is a drawback that the frequency of occurrence of failure in the movable member increases. Further, when using the turntable, there is a drawback that it is difficult to use a contact type thermometer when continuously measuring the temperature of the object to be heated. Furthermore, in a method in which multiple waveguides are installed at multiple locations inside the microwave heating device and microwaves are simultaneously emitted from these multiple waveguides, the microwaves emitted from multiple waveguides interfere with each other. However, the object to be heated may not be heated uniformly.

【0005】 本考案は従来のマイクロ波加熱装置のこのような欠点を解消するためになされ たものであり、安価に構成でき、可動部材を設ける必要がなく、均一に被加熱体 を加熱することができ、被加熱体の温度の連続的測定もできる、長時間使用に耐 え得るマイクロ波加熱装置を提供することを目的とする。The present invention has been made in order to solve the above drawbacks of the conventional microwave heating apparatus, can be inexpensively constructed, and can uniformly heat the object to be heated without providing a movable member. It is an object of the present invention to provide a microwave heating device that can be used for a long time and can continuously measure the temperature of an object to be heated.

【0006】[0006]

【課題を解決するための手段】[Means for Solving the Problems]

本考案のマイクロ波加熱装置は、マイクロ波加熱炉内の異なる場所にマイクロ 波を射出する複数個のマイクロ波発生器と、該マイクロ波発生器を順次切り変え て動作させる切換手段とを備えたことを特徴とする。 The microwave heating device of the present invention comprises a plurality of microwave generators for emitting microwaves to different places in the microwave heating furnace, and a switching means for sequentially switching the microwave generators to operate. It is characterized by

【0007】 また、本考案のマイクロ波加熱装置は、マイクロ波加熱炉内の異なる場所にマ イクロ波を射出し、この射出するマイクロ波の強度が互いに異なる複数個のマイ クロ波発生器と、該マイクロ波発生器を順次切り変えて動作させる切換手段とを 備えたことを特徴とする。In addition, the microwave heating device of the present invention emits microwaves to different locations in the microwave heating furnace, and a plurality of microwave generators having different intensities of the emitted microwaves, Switching means for sequentially switching and operating the microwave generator.

【0008】 更に、本考案のマイクロ波加熱装置のマイクロ波発生器は、マグネトロンと、 該マグネトロンにより発生されたマイクロ波を導波する導波管とを備えたことを 特徴とする。Further, the microwave generator of the microwave heating apparatus of the present invention is characterized by including a magnetron and a waveguide for guiding the microwave generated by the magnetron.

【0009】[0009]

【作用】[Action]

本考案のマイクロ波加熱装置においては、複数個のマイクロ波発生器から発生 されるマイクロ波を順次切り変えてマイクロ波を射出するので、マイクロ波加熱 装置を長時間連続使用しても、該マイクロ波加熱装置の各マイクロ波発生器は間 歇的に駆動されることとなり、各マイクロ波発生器として特に耐久性の優れたマ イクロ波発生器を用いる必要がなく、家庭用の安価なマイクロ波発生器を用いる ことができ、マイクロ波加熱装置全体のコストを安価にできる。また、複数個の マイクロ波発生器からマイクロ波加熱炉内の異なる場所にマイクロ波を射出する ことにより、可動部材を用いることなく、被加熱体を均一に加熱することが可能 となる。 In the microwave heating device of the present invention, microwaves generated from a plurality of microwave generators are sequentially switched to emit microwaves, so that even if the microwave heating device is continuously used for a long time, Since each microwave generator of the wave heating device is driven intermittently, it is not necessary to use a microwave generator with particularly excellent durability as each microwave generator, and it is an inexpensive microwave for household use. Since a generator can be used, the cost of the entire microwave heating device can be reduced. Further, by emitting microwaves from different microwave generators to different locations in the microwave heating furnace, it becomes possible to uniformly heat the object to be heated without using a movable member.

【0010】 更に、各マイクロ波発生器が順次に動作し、各マイクロ波発生器の射出する位 置の違いにより定在波の発生する位置が変化し、マイクロ波加熱炉内の強度が時 間的に変化して、被加熱体の各部を更に均一に加熱できる。Furthermore, each microwave generator operates sequentially, the position where the standing wave is generated changes due to the difference in the emission position of each microwave generator, and the intensity in the microwave heating furnace is changed over time. It is possible to uniformly heat each part of the object to be heated.

【0011】[0011]

【実施例】【Example】

以下、図面を参照しながら本考案のマイクロ波加熱装置の一実施例を説明する 。 An embodiment of the microwave heating device of the present invention will be described below with reference to the drawings.

【0012】 図1は、本考案のマイクロ波加熱装置の一実施例の回路構成を示す図である。FIG. 1 is a diagram showing a circuit configuration of an embodiment of the microwave heating apparatus of the present invention.

【0013】 本実施例のマイクロ波加熱装置は、切換スイッチ1、該切換スイッチ1を順次 切り変える切換信号を供給するタイマ2、前記切換スイッチ1により順次切り変 えられて駆動される3個のマイクロ波発生器6a,6b,6c及び該マイクロ波発 生器6a,6b,6cに電力を供給するコンセント9とから成る。マイクロ波発生 器6a,6b,6cは、それぞれ高圧トランス3a,3b,3c、マグネトロン4a, 4b,4c及び導波管5a,5b,5cとから成る。The microwave heating apparatus of this embodiment includes a changeover switch 1, a timer 2 for supplying a changeover signal for sequentially changing over the changeover switch 1, and three changeover switches 1 which are sequentially changed over and driven. The microwave generators 6a , 6b , 6c and the outlet 9 for supplying electric power to the microwave generators 6a , 6b , 6c . Microwave generator 6 a, 6 b, 6 c are each composed of high-voltage transformer 3 a, 3 b, 3 c , a magnetron 4 a, 4 b, 4 c and waveguide 5 a, 5 b, 5 c .

【0014】 交流電源から電力を印加されるコンセント9の一方のラインには切換スイッチ 1の共用接点が接続されており、該コンセント9の他方のラインには、3個の高 圧トランス3a,3b,3cの1次側巻線の一端が並列に接続されている。The common contact of the changeover switch 1 is connected to one line of the outlet 9 to which electric power is applied from the AC power source, and the other line of the outlet 9 is connected to the three high voltage transformers 3 a , 3 b, 3 of the primary winding of the c end are connected in parallel.

【0015】 切換スイッチ1の3個の切換接点には、前記高圧トランス3a,3b,3cの1 次側巻線の他端がそれぞれ接続されている。また、切換スイッチ1は、タイマ2 からの切換信号により各接点の切換動作がなされる。The other ends of the primary windings of the high-voltage transformers 3 a , 3 b , 3 c are connected to the three switching contacts of the changeover switch 1, respectively. Further, the changeover switch 1 changes over each contact according to the changeover signal from the timer 2.

【0016】 高圧トランス3a,3b,3cの2次側巻線には、マグネトロン4a,4b,4cの アノードがそれぞれ接続されている。マグネトロン4a,4b,4cのカソードは それぞれ接地されている。また、マグネトロン4a,4b,4cは、それぞれ導波 管5a,5b,5cの中に設けられており、該導波管5a,5b,5cによりマグネト ロン4a,4b,4cから発生したマイクロ波が図2に示すマイクロ波加熱炉7内 に導波されて射出される。The anodes of the magnetrons 4 a , 4 b and 4 c are connected to the secondary windings of the high voltage transformers 3 a , 3 b and 3 c , respectively. The cathode of the magnetron 4 a, 4 b, 4 c are grounded. Further, the magnetron 4 a, 4 b, 4 c are each waveguide 5 a, 5 b, 5 are provided in the c, magnetron Ron 4 a by the waveguide 5 a, 5 b, 5 c , 4b , 4c are guided and emitted into the microwave heating furnace 7 shown in FIG.

【0017】 図2は、図1の実施例の立体的構成を示す透視斜視図である。FIG. 2 is a perspective view showing a three-dimensional structure of the embodiment shown in FIG.

【0018】 図2に示すように、マイクロ波発生器6a,6b,6cの導波管5a,5b,5cは 、マイクロ波加熱炉7内の被加熱体8から等距離となる位置にマイクロ波の射出 開口が設けられている。As shown in FIG. 2, the waveguides 5 a , 5 b , 5 c of the microwave generators 6 a , 6 b , 6 c are equidistant from the object 8 to be heated in the microwave heating furnace 7. A microwave emission opening is provided at the position.

【0019】 図3は、本実施例のマイクロ波発生器6a,6b,6cの動作タイミングを示す タイミングチャートである。FIG. 3 is a timing chart showing the operation timing of the microwave generators 6 a , 6 b , 6 c of this embodiment.

【0020】 以下、図3のタイミングチャートを参照しながら、本実施例の動作を説明する 。The operation of this embodiment will be described below with reference to the timing chart of FIG.

【0021】 まず、タイマ2から出力される最初の切換信号で切換スイッチ1がマイクロ波 発生器6cに接続され、コンセント9から交流電力が高圧トランス3cに印加され 、該高圧トランス3cの2次側巻線に接続されたマグネトロン4cからマイクロ波 が射出され、導波管5cを介して、マイクロ波加熱炉7内の被加熱体8に照射さ れる。Firstly, the change-over switch 1 is connected to a microwave generator 6 c in the first switching signal outputted from the timer 2, the AC power from the wall outlet 9 is applied to the high-voltage transformer 3 c, of the high-voltage transformer 3 c The microwave is emitted from the magnetron 4 c connected to the secondary winding, and is irradiated onto the heated object 8 in the microwave heating furnace 7 via the waveguide 5 c .

【0022】 次に、タイマ2からの切換信号で、マイクロ波発生器6aが励起されて、マイ クロ波発生器6cからのマイクロ波の射出が停止するとともに、マイクロ波発生 器6aからマイクロ波が被加熱体8に照射される。以下、順次マイクロ波発生器 6b、6c…と励起され、マイクロ波が全体として連続的にマイクロ波加熱炉7内 に射出され、被加熱体8が連続加熱される。Next, the microwave generator 6 a is excited by the switching signal from the timer 2 to stop the emission of microwaves from the microwave generator 6 c, and the microwave generator 6 a is also stopped. The microwave is applied to the object to be heated 8. Hereinafter, the microwave generators 6 b , 6 c, ... Are sequentially excited, and microwaves are continuously continuously injected into the microwave heating furnace 7 to continuously heat the object 8 to be heated.

【0023】 この際、マイクロ波は、マイクロ波加熱炉7内の異なる位置に射出口の設けら れた導波管5a,5b,5cから順次被加熱体8に照射されるので、被加熱体8の 各部は均一に加熱される。At this time, the microwaves are sequentially applied to the object 8 to be heated from the waveguides 5 a , 5 b , 5 c having the emission ports provided at different positions in the microwave heating furnace 7, Each part of the heated object 8 is heated uniformly.

【0024】 なお、マイクロ波発生器5a,5b,5cが順次に動作し、各マイクロ波発生器 の射出する位置の違いにより定在波の発生する位置が変化し、被加熱体8に照射 されるマイクロ波の強さが時間とともに変化し、より均一に被加熱体を加熱する ことが可能となる。Note that the microwave generators 5 a , 5 b , and 5 c sequentially operate, and the position where the standing wave is generated changes due to the difference in the position where each microwave generator emits. The intensity of the microwave applied to the object changes with time, which makes it possible to heat the object to be heated more uniformly.

【0025】 また、本実施例においては、マイクロ波発生器を3個設けたが、本考案のマイ クロ波発生器の数が3個に限定されるものでないことは言うまでもなく、コスト ダウンのため2個のみ設けてもよく、より多くのマイクロ波発生器を設けて、被 加熱体をより均一に加熱するようにしてもよい。Further, in the present embodiment, three microwave generators are provided, but it goes without saying that the number of microwave generators of the present invention is not limited to three, and for cost reduction. Only two may be provided, or more microwave generators may be provided to heat the object to be heated more uniformly.

【0026】[0026]

【考案の効果】[Effect of the device]

本考案のマイクロ波加熱装置は、以上のように構成したので、安価に構成でき 、可動部材を設ける必要がなく、均一に被加熱体を加熱することができ、被加熱 体の温度の連続的測定もでき、長時間使用に耐え得る。 Since the microwave heating device of the present invention is configured as described above, it can be inexpensively constructed, can uniformly heat the object to be heated without providing a movable member, and can continuously maintain the temperature of the object to be heated. It can be measured and can be used for a long time.

【図面の簡単な説明】[Brief description of drawings]

【図1】本考案の一実施例の電気回路の構成を示す図で
ある。
FIG. 1 is a diagram showing a configuration of an electric circuit according to an embodiment of the present invention.

【図2】図1の実施例の立体的構成を示す透視斜視図で
ある。
FIG. 2 is a perspective view showing a three-dimensional structure of the embodiment shown in FIG.

【図3】図1の実施例の各マイクロ波発生器の動作タイ
ミングを示すタイミングチャートである。
FIG. 3 is a timing chart showing the operation timing of each microwave generator of the embodiment of FIG.

【符号の説明】[Explanation of symbols]

1 切換スイッチ 2 タイマ 3a,3b,3c 高圧トランス 4a,4b,4c マグネトロン 5a,5b,5c 導波管 6a,6b,6c マイクロ波発生器 7 マイクロ波加熱炉 8 被加熱体1 change-over switch 2 Timer 3 a, 3 b, 3 c high-voltage transformer 4 a, 4 b, 4 c magnetron 5 a, 5 b, 5 c waveguide 6 a, 6 b, 6 c microwave generator 7 Microwave Heating furnace 8 heated object

Claims (2)

【実用新案登録請求の範囲】[Scope of utility model registration request] 【請求項1】 マイクロ波加熱炉内の異なる場所にマイ
クロ波を射出する複数個のマイクロ波発生器と、該マイ
クロ波発生器を順次切り変えて動作させる切換手段とを
備えたことを特徴とするマイクロ波加熱装置。
1. A microwave heating furnace, comprising: a plurality of microwave generators for emitting microwaves to different locations; and a switching means for sequentially switching the microwave generators to operate. Microwave heating device.
【請求項2】 マイクロ波発生器は、マグネトロンと、
該マグネトロンにより発生されたマイクロ波を導波する
導波管とを備えたことを特徴とする請求項1に記載のマ
イクロ波加熱装置。
2. The microwave generator comprises a magnetron,
The microwave heating device according to claim 1, further comprising a waveguide for guiding the microwave generated by the magnetron.
JP1991023594U 1991-04-10 1991-04-10 Industrial microwave heating equipment Expired - Lifetime JP2539630Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1991023594U JP2539630Y2 (en) 1991-04-10 1991-04-10 Industrial microwave heating equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1991023594U JP2539630Y2 (en) 1991-04-10 1991-04-10 Industrial microwave heating equipment

Publications (2)

Publication Number Publication Date
JPH0590885U true JPH0590885U (en) 1993-12-10
JP2539630Y2 JP2539630Y2 (en) 1997-06-25

Family

ID=12114917

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1991023594U Expired - Lifetime JP2539630Y2 (en) 1991-04-10 1991-04-10 Industrial microwave heating equipment

Country Status (1)

Country Link
JP (1) JP2539630Y2 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012084510A (en) * 2010-09-14 2012-04-26 Tokyo Electron Ltd Device and method for irradiating microwave
JP2013058652A (en) * 2011-09-09 2013-03-28 Tokyo Electron Ltd Microwave processing device and control method thereof
WO2014054276A1 (en) * 2012-10-03 2014-04-10 三菱電機株式会社 Electromagnetic transmission device, power amplification device, and electromagnetic transmission system
WO2018163386A1 (en) * 2017-03-09 2018-09-13 株式会社Kokusai Electric Substrate processing device, semiconductor device manufacturing method, and program

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5135689A (en) * 1974-09-20 1976-03-26 Matsushita Electric Industrial Co Ltd Shokubai no seizohoho
JPS54131372A (en) * 1978-04-03 1979-10-12 Toshiba Corp Method of making bulb having electrode supporter made of high melting point glass
JPS557646A (en) * 1978-07-04 1980-01-19 Nippon Atomic Ind Group Co Nuclear fuel assembly
JPS6313675U (en) * 1986-07-14 1988-01-29

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5135689A (en) * 1974-09-20 1976-03-26 Matsushita Electric Industrial Co Ltd Shokubai no seizohoho
JPS54131372A (en) * 1978-04-03 1979-10-12 Toshiba Corp Method of making bulb having electrode supporter made of high melting point glass
JPS557646A (en) * 1978-07-04 1980-01-19 Nippon Atomic Ind Group Co Nuclear fuel assembly
JPS6313675U (en) * 1986-07-14 1988-01-29

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012084510A (en) * 2010-09-14 2012-04-26 Tokyo Electron Ltd Device and method for irradiating microwave
JP2013058652A (en) * 2011-09-09 2013-03-28 Tokyo Electron Ltd Microwave processing device and control method thereof
WO2014054276A1 (en) * 2012-10-03 2014-04-10 三菱電機株式会社 Electromagnetic transmission device, power amplification device, and electromagnetic transmission system
CN104704913A (en) * 2012-10-03 2015-06-10 三菱电机株式会社 Electromagnetic transmission device, power amplification device, and electromagnetic transmission system
JP5888427B2 (en) * 2012-10-03 2016-03-22 三菱電機株式会社 Electromagnetic wave transmission device and electromagnetic wave transmission system
EP2906021A4 (en) * 2012-10-03 2016-06-22 Mitsubishi Electric Corp ELECTROMAGNETIC EMISSION DEVICE, POWER AMPLIFICATION DEVICE, AND ELECTROMAGNETIC EMISSION SYSTEM
CN104704913B (en) * 2012-10-03 2016-10-26 三菱电机株式会社 Electromagnetic wave dispensing device, power amplifier device and electromagnetic wave send system
WO2018163386A1 (en) * 2017-03-09 2018-09-13 株式会社Kokusai Electric Substrate processing device, semiconductor device manufacturing method, and program
KR20190112785A (en) * 2017-03-09 2019-10-07 가부시키가이샤 코쿠사이 엘렉트릭 Substrate processing apparatus, manufacturing method and program of semiconductor device

Also Published As

Publication number Publication date
JP2539630Y2 (en) 1997-06-25

Similar Documents

Publication Publication Date Title
JP2603984B2 (en) Cooking device
US5451751A (en) High-frequency heating apparatus with wave guide switching means and selective power switching means for magnetron
JPH0590885U (en) Microwave heating device
KR910004996A (en) microwave
KR102430452B1 (en) Ultraviolet lamp system and method of operation and construction thereof
DE60137905D1 (en) Electrical equipment room in microwave ovens
RU2157599C2 (en) Universal microwave oven
US3846606A (en) Microwave energy applicator
US3840810A (en) High frequency energy generator load simulator circuit
US2929905A (en) Electronic cooking apparatus
EP0066632B1 (en) Microwave heat cooking device
JPH06188085A (en) Microwave discharge electrodeless light source device
KR900004447B1 (en) Microwave Fluorescent Display Tube Power Supply
KR100234815B1 (en) Magnetron high frequency heating device with wave switching means and optional power switch means
US3296405A (en) Microwave oven
CN114269037B (en) Microwave generator and microwave cooking appliance
KR850000429Y1 (en) Heated cooker
US3529114A (en) Two-position phase-matching device for electronic ovens
KR200191340Y1 (en) Microwave display
KR0172864B1 (en) Microwave oven magnetron drive circuit
US2379884A (en) Electrotherapeutic device
RU2011319C1 (en) Microwave heater
DE69933170D1 (en) Portable device for drying by means of microwaves
JPS6293893A (en) Cooker
KR950010004Y1 (en) Controlling apparatus of electronic range

Legal Events

Date Code Title Description
EXPY Cancellation because of completion of term