JPH03173094A - High-frequency heating device - Google Patents
High-frequency heating deviceInfo
- Publication number
- JPH03173094A JPH03173094A JP31117889A JP31117889A JPH03173094A JP H03173094 A JPH03173094 A JP H03173094A JP 31117889 A JP31117889 A JP 31117889A JP 31117889 A JP31117889 A JP 31117889A JP H03173094 A JPH03173094 A JP H03173094A
- Authority
- JP
- Japan
- Prior art keywords
- center
- heated
- wall surface
- waveguide antenna
- 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.)
- Granted
Links
- 238000010438 heat treatment Methods 0.000 title claims abstract description 52
- 230000008878 coupling Effects 0.000 claims description 4
- 238000010168 coupling process Methods 0.000 claims description 4
- 238000005859 coupling reaction Methods 0.000 claims description 4
- 238000010411 cooking Methods 0.000 abstract description 6
- 230000005684 electric field Effects 0.000 abstract description 4
- 238000005266 casting Methods 0.000 abstract 1
- 238000003756 stirring Methods 0.000 description 8
- 230000010355 oscillation Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 230000002159 abnormal effect Effects 0.000 description 4
- 230000020169 heat generation Effects 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は高周波加熱装置の給電方式に関するものである
。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a power supply system for a high frequency heating device.
従来の技術
従来、同一壁面より２力所の給電口から、給電を行う形
の高周波加熱装置においては、第３図に示すように、加
熱室上面１に給電口重口２を設け、電波環はんの手段と
して、回転スタラー羽根３を用いたり、第４図に示すよ
うに、ターンテーブル９により被加熱物８を回転させて
、加熱の均一性を確保していた。2. Description of the Related Art Conventionally, in a high-frequency heating device in which power is supplied from two power supply ports on the same wall surface, a power supply port 2 is provided on the upper surface 1 of the heating chamber, as shown in FIG. As a heating means, a rotating stirrer blade 3 is used, or as shown in FIG. 4, the object to be heated 8 is rotated by a turntable 9 to ensure uniformity of heating.
発明が解決しようとする課題
しかしながら、回転スタラー羽根３を用いて、電波を攪
はんしようとすると、給電口２から庫内７に放出された
電波を攬はんするという原理上、比較的大きなスタラー
羽［３でなければ、攪はん効果が得られない、よって、
スタラー羽根３の為空間が大きく必要となり、庫内の有
効調理面積が狭くなる。Problems to be Solved by the Invention However, when attempting to stir radio waves using the rotating stirrer blades 3, a relatively large If the stirrer blade is not 3, the stirring effect cannot be obtained, therefore,
The stirrer blades 3 require a large space, and the effective cooking area inside the refrigerator becomes narrow.
また、前記の様に給電口２から庫内７に放出された電波
を攬はんするという原理上、給電口２に近い位置に被加
熱物８を置くと、給電口２から放出された電波を直接受
けて、給電口近傍が強く加熱され過ぎるという問題が生
じる。これは加熱室上壁面の給電口２より上記方法で給
電した時に高さのある被加熱物について言えると同様に
加熱室底面より給電を行うとき、給電口から被加熱物ま
での距離をとる必要があることがわかる。しかし実際そ
のような構成をとることは外形寸法が大きくなるので、
非常に困難である。In addition, based on the principle of picking up the radio waves emitted from the power supply port 2 into the refrigerator interior 7 as described above, if the object to be heated 8 is placed near the power supply port 2, the radio waves emitted from the power supply port 2 will be picked up. A problem arises in that the vicinity of the power supply port is heated too strongly due to direct exposure to the power supply. This can be said about tall objects to be heated when power is supplied from the power supply port 2 on the upper wall of the heating chamber using the above method.Similarly, when power is supplied from the bottom of the heating chamber, it is necessary to maintain a distance from the power supply port to the object to be heated. It turns out that there is. However, actually adopting such a configuration would increase the external dimensions, so
Very difficult.
またターンテーブル９を用い、被加熱８を回転させて加
熱の均一性を確保する方法は、ターンテーブル９が回転
する為、加熱室７の幅と奥行きを、はぼ同じ寸法にする
必要があり、幅が狭く長さの長い被加熱物の加熱時に、
特に不利であると共に、高周波加熱装置の設計時におい
て、寸法上の制約を受ける。さらに加熱室７に入る大き
さの被加熱物８でも、ターンテーブル９よりはみ出すと
壁面に当り回転できないので、実際に被加熱物を８を入
れることのできる面積は狭くなる。In addition, in the method of using a turntable 9 to rotate the heated object 8 to ensure uniform heating, since the turntable 9 rotates, the width and depth of the heating chamber 7 must be made to be approximately the same size. , when heating objects that are narrow and long,
This is particularly disadvantageous and subject to dimensional constraints when designing high frequency heating devices. Furthermore, even if the heated object 8 is large enough to fit into the heating chamber 7, if it protrudes beyond the turntable 9, it will hit the wall and cannot rotate, so the area in which the heated object 8 can actually be placed becomes narrow.
また、第５回に示すような形で、回転導波管アンテナｌ
Ｏを用いて給電を行った場合、回転導波管アンテナ１０
の開口が、図中ａの方向に向いたときと、ｂの方向に向
いたときでは、高周波回路的に見て、開口以降のインピ
ーダンスが極端に違い、マグネトロン５の発掘効率が悪
くなり、定格高周波出力を得られないばかりでなく、マ
グネトロン５の耐久性能を劣下させる。Also, in the form shown in Part 5, a rotating waveguide antenna l
When feeding power using O, the rotating waveguide antenna 10
When the aperture is oriented in the direction a and in the direction b in the figure, the impedance after the aperture is extremely different from the perspective of a high frequency circuit, and the excavation efficiency of the magnetron 5 deteriorates, causing the rated Not only will high-frequency output not be obtained, but the durability of the magnetron 5 will be degraded.
さらに、回転導波管アンテナｌＯの開口が、互いに向き
合ったとき、相手のマイクロ波が直接給電口より侵入し
、他方のマグネトロンに、アンテナスパークや、異常発
熱を引き起こし、危険である。Furthermore, when the openings of the rotating waveguide antennas 1O face each other, the microwaves of the other party directly enter through the feed port, causing antenna sparks and abnormal heat generation in the other magnetron, which is dangerous.
また、回転導波管アンテナｌＯより放射されたマイクロ
波は指向性を有しており、第６図に示す様に被加熱物８
は、加熱室側壁面１１で反射されたマイクロ波により加
熱される為、通常、被加熱物８の置かれないコーナ一部
分が強くなり、加熱の効率が悪いし、被加熱物８におい
ては周囲が強く加熱されているにも関わらず、底面中央
が未加熱状態になるという、調理性能上の問題が生じる
。Furthermore, the microwaves radiated from the rotating waveguide antenna 1O have directivity, and as shown in FIG.
is heated by the microwaves reflected from the side wall surface 11 of the heating chamber, so the corner part where the object to be heated 8 is not placed becomes strong, resulting in poor heating efficiency, and the surrounding area of the object to be heated 8 becomes strong. Despite being strongly heated, the center of the bottom remains unheated, which poses a problem in terms of cooking performance.
そこで、本発明は加熱室内の給電、電波攪はんに必要な
空間を、極力小さくし、有効加熱面積が大きく、電波分
布性能の良い、高信頼性の高周波加熱装置を提供する事
を目的とする。Therefore, an object of the present invention is to provide a highly reliable high-frequency heating device that minimizes the space required for power supply and radio wave stirring in the heating chamber, has a large effective heating area, and has good radio wave distribution performance. do.
課題を解決するための手段
上記課題を解決するため、本発明の高周波加熱装置は、
壁面中央に近接し
かつ独立して存在する２個の円形の絞りの内に各々一個
ずつ給電口を設け、前記給電口より同軸結合により回転
導波管アンテナを用いて給電を行うと共に、前記給電口
の中心を円形絞りの中心よりも壁面中央寄りに設けるこ
とにより回転導波管アンテナの開口端面と円形絞りの傾
斜壁面との間隔を壁面中央寄りで狭（なるように構成す
るものである。Means for Solving the Problems In order to solve the above problems, the high frequency heating device of the present invention includes:
One feeding port is provided in each of the two circular apertures that exist independently and close to the center of the wall surface, and power is fed from the feeding port using a rotating waveguide antenna by coaxial coupling, and the feeding port By arranging the center of the mouth closer to the center of the wall surface than the center of the circular diaphragm, the distance between the opening end surface of the rotating waveguide antenna and the inclined wall surface of the circular diaphragm is narrowed closer to the center of the wall surface.
作用
本発明の高周波加熱装置は、壁面中央に近接し、かつ独
立して存在する２個の円形絞りの内に各々一個ずつ給電
口を設け、前記給電口より、回転導波管アンテナを用い
て、同軸結合で給電を行うことにより、回転導波管アン
テナの開口が互いに向き合ったとき、その中間に絞りの
傾斜壁面が存在するので、相手のマイクロ波が他方のマ
グネトロンに直接達する事はな（、アンテナスパークや
、異常発熱を引き起こす危険性はない。Function: The high-frequency heating device of the present invention provides a feeding port in each of two circular apertures that are close to the center of the wall surface and exist independently, and a rotating waveguide antenna is used to connect the feeding port from the feeding port. By feeding power through coaxial coupling, when the apertures of the rotating waveguide antennas face each other, there is an inclined wall surface of the aperture between them, so the microwaves of the other party will not reach the other magnetron directly ( , there is no risk of antenna sparking or abnormal heating.
さらに、回転導波管アンテナの開口周囲に、比較的均等
な距離で円形絞りが存在するので、高周波回路的にみて
、開口以降のインピーダンスがひ各的均−になり、マグ
ネトロンの発振効率が良くなるとともに、安定した発振
が得られマグネトロン寿命の向上に寄与する。Furthermore, since there is a circular diaphragm at a relatively even distance around the aperture of the rotating waveguide antenna, from the perspective of a high-frequency circuit, the impedance after the aperture is uniform throughout, which improves the oscillation efficiency of the magnetron. At the same time, stable oscillation can be obtained, contributing to an improvement in the life of the magnetron.
また、回転導波管アンテナから放射された、指向性を持
ったマイクロ波は、その周囲の円形絞りの傾斜壁面で、
進行方向を変えられ、直接に被加熱物を暖めるので、加
熱の効率がよいと共に、壁面中央に近接して各々の、円
形絞りの傾斜壁面が存在するので、他の部分の二倍のマ
イクロ波が被加熱物を暖め、通常加熱されにくい底面中
央を強く加熱することができ、周囲との加熱の差を改善
することができる。In addition, the directional microwaves radiated from the rotating waveguide antenna are
The direction of propagation can be changed and the object to be heated can be directly heated, resulting in high heating efficiency.In addition, since there is an inclined wall surface with a circular aperture close to the center of the wall surface, twice as much microwave energy as in other parts can be generated. can warm the object to be heated, and can strongly heat the center of the bottom, which is normally difficult to heat, and can improve the difference in heating from the surrounding area.
なお、さらに、前記給電の中心を、円形絞りの中心より
も、壁面中央寄りに設けることにより、回転導波管アン
テナの開口端面と、円形絞りの傾斜壁面との間隔を、壁
面中央寄りで狭くなるように構成することで、開口部に
おける電界強度が、他の部分よりも強くなり、中央部に
おいて被加熱物を、より強く加熱することができる。Furthermore, by arranging the center of the power supply closer to the center of the wall surface than the center of the circular diaphragm, the distance between the opening end surface of the rotating waveguide antenna and the inclined wall surface of the circular diaphragm can be narrowed closer to the center of the wall surface. By configuring it so that the electric field strength in the opening becomes stronger than in other parts, it is possible to heat the object to be heated more strongly in the central part.
以上の様にして、回転導波管アンテナを用いて給電を行
ったときの問題点が解決されることで、給電及び電波攪
はんに、回転導波管アンテナを用いることが可能となり
、スタラー羽根を用いたり、ターンテーブルを用いて、
電波撹はんを行ったときの、さまざまな問題点が解消さ
れる。As described above, by solving the problems when feeding power using a rotating waveguide antenna, it becomes possible to use a rotating waveguide antenna for feeding power and stirring radio waves, and the starrer Using a blade or a turntable,
This solves various problems when using radio wave stirring.
すなわち、加熱室へのマイク波給電及び攪はんに、回転
導波管アンテナを用いることにより、比較的少ない面積
で、十分な電波攪はん効果を得ることができ、庫内の有
効調理面積が、大きく確保できる。In other words, by using a rotating waveguide antenna for microwave power feeding and stirring into the heating chamber, a sufficient radio wave stirring effect can be obtained with a relatively small area, reducing the effective cooking area inside the refrigerator. However, a large amount can be secured.
さらに、回転導波管アンテナは、給電口を覆う形で形成
されているので、給電口から放出された電波を直接受け
て、給電口近傍の被加熱物が強く加熱され過ぎる、とい
う問題がない。Furthermore, since the rotating waveguide antenna is formed to cover the power feed port, there is no problem of the heated object near the power feed port being overly heated by directly receiving the radio waves emitted from the power feed port. .
また、被加熱物を回転させないので、加熱室−杯に被加
熱物を入れたとしても、均一な加熱が実現できるし、加
熱室の幅と奥行きを、自由に設計することができる。Furthermore, since the object to be heated is not rotated, even if the object is placed in the heating chamber cup, uniform heating can be achieved, and the width and depth of the heating chamber can be freely designed.
実施例
以下、本発明の一実施例における高周波加熱装置につい
て、図面とともに説明する。EXAMPLE Hereinafter, a high frequency heating device according to an example of the present invention will be explained with reference to the drawings.
第１図に示すように、加熱室７の底面には、２個の独立
した円形の絞りが、奥行き方向略中心上に、底面中央に
近接して形成されている。その円形絞りの内部には、円
形絞の中心点を結ぶ線分ｘ−ｘ’上に円形絞り１２の中
心点より、底面中央寄りに２力所の給電口２が設けられ
ており、その２力所の給電口から、回転導波管アンテナ
ｌＯで同軸給金により、加熱室７に給電を行う構成にな
っている。As shown in FIG. 1, two independent circular apertures are formed on the bottom surface of the heating chamber 7, approximately at the center in the depth direction and close to the center of the bottom surface. Inside the circular diaphragm, two power supply ports 2 are provided near the center of the bottom surface from the center point of the circular diaphragm 12 on the line segment x-x' connecting the center points of the circular diaphragm. The configuration is such that power is supplied to the heating chamber 7 from the power supply port of the power station through a coaxial feed using a rotating waveguide antenna lO.
また、第２図に示す様に左右の回転導波管アンテナ１０
は、各々円形絞りの内に十分に埋没しており、たとえ双
方の回転導波管アンテナｌＯの開口部が、互いに向き合
ったとしても、回転導波管アンテナＩＯから放射された
マイクロ波は中央部にある円形絞りの傾斜壁面１３に遮
られ、他方のマグネトロン５に直接達する事なく、アン
テナスパークや、異常発熱を引き起こす危険性な無い。In addition, as shown in FIG. 2, the left and right rotating waveguide antennas 10
are fully buried in the respective circular apertures, and even if the openings of both rotating waveguide antennas IO face each other, the microwaves radiated from the rotating waveguide antenna IO will be transmitted to the central part. It is blocked by the inclined wall surface 13 of the circular diaphragm located in the center of the magnetron, and does not reach the other magnetron 5 directly, so there is no danger of causing antenna sparks or abnormal heat generation.
さらに、回転導波管アンテナｌＯの開口周囲に、比較的
均等な距離で円形絞りの傾斜壁面１３が存在するので、
高周波回路的にみて、開口以降のインピーダンスが比較
的均一になり、マグネトロン５の発振効率が良くなるこ
とともに、安定した発振が得られ、マグネトロン５の寿
命の向上に寄与する。Furthermore, since the inclined wall surface 13 of the circular aperture exists at a relatively even distance around the opening of the rotating waveguide antenna lO,
In terms of a high frequency circuit, the impedance after the opening becomes relatively uniform, the oscillation efficiency of the magnetron 5 improves, stable oscillation is obtained, and the life of the magnetron 5 is improved.
また、回転導波管アンテナ１０から放射された指向性を
持ったマイクロ波は、その周囲の円形絞りの傾斜壁面１
３で、進行方向を変えられ、直接に被加熱物８を暖める
ので、加熱の効率がよいと共に、底面中央に近接して左
右双方の円形絞りの傾斜壁面１３が存在するので、他の
部分の二倍のマイクロ波が被加熱物８を暖め、通常加熱
されにくい底面中央を強く加熱することができ、周囲と
の加熱の差を改善することができる。Further, the directional microwave radiated from the rotating waveguide antenna 10 is transmitted to the inclined wall surface 1 of the circular aperture around it.
3, the direction of movement can be changed and the object to be heated 8 can be directly heated, so the heating efficiency is good, and since the inclined wall surfaces 13 of both the left and right circular apertures are located close to the center of the bottom surface, it is possible to heat the heated object 8 directly. The twice the number of microwaves warms the object to be heated 8, and the center of the bottom surface, which is normally hard to be heated, can be strongly heated, and the difference in heating from the surrounding area can be improved.
なお、さらに、給電口２の中心を、円形絞りの中心より
も、壁面中央寄りに設けることにより、回転導波管アン
テナ１０の開口端面と、円形絞りの傾斜壁面１３との間
隔を、壁面中央寄りで狭くなるように構成することで、
開口部における電界強度が、他の部分よりも壁面中央寄
りで強くなり、中央部において被加熱物８を、より強く
加熱することができる。Furthermore, by arranging the center of the feed port 2 closer to the center of the wall surface than the center of the circular aperture, the distance between the opening end surface of the rotating waveguide antenna 10 and the inclined wall surface 13 of the circular aperture can be set closer to the center of the wall surface. By configuring it so that it becomes narrower towards the end,
The electric field strength in the opening is stronger near the center of the wall than in other parts, and the object to be heated 8 can be heated more strongly in the center.
また、加熱室７へのマイクロ波給電及び攪はんに、回転
導波管アンテナ１０を用いることにより、比較的少ない
面積で、十分な電波攬はん効果を得ることができ、庫内
の有効調理面積を、大きく確保することができる。In addition, by using the rotating waveguide antenna 10 for feeding and stirring microwave power to the heating chamber 7, a sufficient radio wave absorption effect can be obtained with a relatively small area, and the inside of the refrigerator can be effectively A large cooking area can be secured.
さらに、回転導波管アンテナ１０は、給電口２を覆う形
で形成されているので、給電口２から放出された電波を
直接受けて、給電口近傍の被加熱物８が強く加熱され過
ぎる、という問題がない。Furthermore, since the rotating waveguide antenna 10 is formed to cover the power feed port 2, it directly receives the radio waves emitted from the power feed port 2, and the heated object 8 near the power feed port is heated too strongly. There is no problem.
また、被加熱物８を回転させないので、加熱室−杯に被
加熱物８を入れたとしても、均一な加熱が実現できるし
、加熱室７の幅と奥行きを、事由に設計することができ
る。In addition, since the object to be heated 8 is not rotated, even if the object to be heated 8 is placed in the heating chamber cup, uniform heating can be achieved, and the width and depth of the heating chamber 7 can be designed according to the reason. .
特に、本実施例のよかな、長方形の加熱室７において有
効な給電構成である。This is particularly an effective power supply configuration for the rectangular heating chamber 7 of this embodiment.
なお、各々の回転導波管アンテナの回転数は、互いに異
なっていることが望ましい。Note that it is desirable that the rotational speeds of the respective rotating waveguide antennas are different from each other.
発明の効果
以上のように、本発明の高周波加熱装置は、壁面中央に
近接し、かつ独立して存在する２個の円形絞りの内に各
々一個ずつ給電口を設け、前証給電口より、回転導波管
アンテナを用いて、同軸結合で給電を行うことにより回
転導波管アンテナの開口が互いに向き合ったとき、その
中間に絞りの傾斜壁面が存在するので、相手のマイクロ
波が他方のマグネトロンに直接達する事はなく、アンテ
ナスパークや、異常発熱を引き起こす危険性はない。Effects of the Invention As described above, the high-frequency heating device of the present invention provides one power supply port in each of the two circular apertures that are close to the center of the wall surface and exist independently, and By using a rotating waveguide antenna and feeding power through coaxial coupling, when the apertures of the rotating waveguide antennas face each other, there is an inclined wall surface of the aperture in the middle, so that the microwaves of the other party are transmitted to the other magnetron. There is no danger of antenna sparks or abnormal heat generation.
さらに、回転導波管アンテナの開口周囲に、比較的均等
な距離で円形絞りが存在するので、高周波回路的にみて
、開口以降のインピーダンスが比較的均一になり、マグ
ネトロンの発振効率が良くなるとともに、安定した発振
りが得られ、マグネトロンの寿命の向上に寄与する。Furthermore, since there is a circular diaphragm at a relatively even distance around the aperture of the rotating waveguide antenna, from the perspective of a high-frequency circuit, the impedance after the aperture becomes relatively uniform, which improves the oscillation efficiency of the magnetron. , stable oscillation can be obtained, contributing to improving the life of the magnetron.
また、回転導波管アンテナから放射れれた、指向性を持
ったマイクロ波は、その周囲の円形絞りの傾斜壁面で、
進行方向を変えられ、直接に被加熱物を暖めるので、加
熱の効率がよいと共に、底面中央に近接して左右双方の
円形絞りの傾斜壁面が存在するので、他の部分の二倍の
マイクロ波が被加熱物を暖め、通常加熱されにくい底面
中央を強く加熱することができ、周囲との加熱の差を改
善することができる。In addition, the directional microwaves radiated from the rotating waveguide antenna are transmitted through the inclined wall of the circular aperture around it.
The direction of movement can be changed and the object to be heated can be directly heated, resulting in high heating efficiency.In addition, since there are inclined walls of the circular apertures on both the left and right sides close to the center of the bottom surface, twice as much microwave energy as in other parts can be generated. can warm the object to be heated, and can strongly heat the center of the bottom, which is normally difficult to heat, and can improve the difference in heating from the surrounding area.
さらに、前記給電口の中心を前記円形絞りの中心よりも
、壁面中央寄りに設けることにより、回転導波管アンテ
ナの開口端面と、円形絞りの傾斜面との間隔を、壁面中
央寄りで狭くなるように構成することで、開口部におけ
る電界強度が、他の部分よりも強くなり、中央部におい
て被加熱物を、より強く加熱することができる。Furthermore, by providing the center of the feed port closer to the center of the wall surface than the center of the circular diaphragm, the distance between the opening end surface of the rotating waveguide antenna and the inclined surface of the circular diaphragm can be narrowed closer to the center of the wall surface. With this configuration, the electric field strength in the opening becomes stronger than in other parts, and the object to be heated can be heated more strongly in the central part.
なお、本発明は加熱室底面二力所からの給電方式のみな
らず、加熱室上面二力所からの給電方式や、上面、底面
の計四力所からの給電方式についても同様の効果を有す
るものである。Note that the present invention has similar effects not only for the power supply method from the two power points on the bottom of the heating chamber, but also for the power supply method from the two power points on the top surface of the heating chamber, and the power feeding method from a total of four power points on the top and bottom surfaces. It is something.
第１図は本発明の一実施例における高周波数は加熱装置
の上面図、第２図は同装置の側面断面図、第３図、第４
図は従来の高周波加熱装置の側面断面図、第５図は同装
置の上面図、第６図は同装置の側面断面図である。
２・・・・・・開口部、５・・・・・・マグネトロン、
６・・・・・・導波管、７・・・・・・加熱室、ｌＯ・
・・・・・回転導波管アンテナ、１２・・・・・・円形
絞り。FIG. 1 is a top view of a high frequency heating device in one embodiment of the present invention, FIG. 2 is a side sectional view of the same device, FIGS.
The figure is a side sectional view of a conventional high-frequency heating device, FIG. 5 is a top view of the same device, and FIG. 6 is a side sectional view of the same device. 2...Opening, 5...Magnetron,
6... Waveguide, 7... Heating chamber, lO.
...Rotating waveguide antenna, 12...Circular aperture.
Claims (2)
一壁面上に２力所の給電口と、マイクロ波を発振するマ
グネトロンと、前記給電口にマグネトロンにより発振さ
れたマイクロ波を導く導波管と、前記給電口より同軸結
合により加熱室に給電を行う回転導波管アンテナを有し
、前記２ヵ所の給電口は壁面中央に近接し、かつ独立し
て存在する２個の円形の絞りの内に各々一個ずつ設けた
ことを特徴とする高周波加熱装置。(1) Two power supply ports on the same wall surface of the top or bottom surface or both of the heating chambers, a magnetron that oscillates microwaves, and a waveguide that guides the microwaves oscillated by the magnetron to the power supply port. , has a rotating waveguide antenna that feeds power to the heating chamber from the feed port through coaxial coupling, and the two feed ports are located close to the center of the wall surface and located between two circular apertures that exist independently. A high-frequency heating device characterized in that one device is provided in each.
寄りに寄せることにより、回転導波管アンテナの開口端
面と円形絞りの傾斜壁との間隔を壁面中央寄りで狭くし
たことを特徴とする請求項１記載の高周波加熱装置。(2) By moving the center of the feed port closer to the center of the wall than the center of the circular diaphragm, the distance between the opening end of the rotating waveguide antenna and the inclined wall of the circular diaphragm is narrowed closer to the center of the wall. The high frequency heating device according to claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP31117889A JP2643498B2 (en) | 1989-11-30 | 1989-11-30 | High frequency heating equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP31117889A JP2643498B2 (en) | 1989-11-30 | 1989-11-30 | High frequency heating equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03173094A true JPH03173094A (en) | 1991-07-26 |
| JP2643498B2 JP2643498B2 (en) | 1997-08-20 |
Family
ID=18014027
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP31117889A Expired - Lifetime JP2643498B2 (en) | 1989-11-30 | 1989-11-30 | High frequency heating equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2643498B2 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1996013140A1 (en) * | 1994-10-20 | 1996-05-02 | Matsushita Electric Industrial Co., Ltd. | High-frequency heating device |
| FR2757931A1 (en) * | 1996-12-27 | 1998-07-03 | Daewoo Electronics Co Ltd | Microwave oven with additional wave distribution feature |
| US6274859B1 (en) | 1994-04-07 | 2001-08-14 | Matsushita Electric Industrial Co., Ltd. | High frequency heating apparatus for selective heating of a desired portion of an object |
| JP2007234503A (en) * | 2006-03-03 | 2007-09-13 | Matsushita Electric Ind Co Ltd | Microwave heating device |
| JP2009187842A (en) * | 2008-02-07 | 2009-08-20 | Mitsubishi Electric Corp | Microwave heating device |
-
1989
- 1989-11-30 JP JP31117889A patent/JP2643498B2/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6172348B1 (en) | 1994-04-07 | 2001-01-09 | Matsushita Electric Industrial Co., Ltd. | High frequency heating apparatus |
| US6274859B1 (en) | 1994-04-07 | 2001-08-14 | Matsushita Electric Industrial Co., Ltd. | High frequency heating apparatus for selective heating of a desired portion of an object |
| WO1996013140A1 (en) * | 1994-10-20 | 1996-05-02 | Matsushita Electric Industrial Co., Ltd. | High-frequency heating device |
| US5986249A (en) * | 1994-10-20 | 1999-11-16 | Matsushita Electric Industrial Co., Ltd. | High frequency heating apparatus for providing a uniform heating of an object |
| FR2757931A1 (en) * | 1996-12-27 | 1998-07-03 | Daewoo Electronics Co Ltd | Microwave oven with additional wave distribution feature |
| JP2007234503A (en) * | 2006-03-03 | 2007-09-13 | Matsushita Electric Ind Co Ltd | Microwave heating device |
| JP2009187842A (en) * | 2008-02-07 | 2009-08-20 | Mitsubishi Electric Corp | Microwave heating device |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2643498B2 (en) | 1997-08-20 |
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