JPH0665153B2 - High frequency heating device - Google Patents
High frequency heating deviceInfo
- Publication number
- JPH0665153B2 JPH0665153B2 JP2275587A JP2275587A JPH0665153B2 JP H0665153 B2 JPH0665153 B2 JP H0665153B2 JP 2275587 A JP2275587 A JP 2275587A JP 2275587 A JP2275587 A JP 2275587A JP H0665153 B2 JPH0665153 B2 JP H0665153B2
- Authority
- JP
- Japan
- Prior art keywords
- frequency
- heating chamber
- high frequency
- power supply
- heating device
- 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.)
- Expired - Lifetime
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- Constitution Of High-Frequency Heating (AREA)
Description
【発明の詳細な説明】 産業上の利用分野 本発明は、複数の高周波発生装置を有する高周波加熱装
置に関するものである。TECHNICAL FIELD The present invention relates to a high-frequency heating device having a plurality of high-frequency generators.
従来の技術 一般にいわゆる電子レンジとして知られる高周波加熱装
置において、食品の均一加熱と行う一つの手段として、
加熱室への高周波の給電口を、たとえば加熱室を形成す
る上下の加熱室壁のそれぞれに設け、被加熱物を上下か
ら加熱する方式がとられている。Conventional technology In a high-frequency heating device generally known as a so-called microwave oven, as one means for uniformly heating food,
For example, a high-frequency power supply port to the heating chamber is provided in each of the upper and lower heating chamber walls forming the heating chamber to heat the object to be heated from above and below.
この従来より実施されている方式の一例を図面に基づい
て説明する。第5図は従来の高周波加熱装置の要部の一
部切欠き斜視図、第6図は同高周波加熱装置の上部切欠
き平面図である。第5図および第6図において、1は高
周波加熱装置本体であり、この高周波加熱装置本体1の
内部に設けられた加熱室2を構成する加熱室上壁3およ
び加熱室底壁4の中央鉛垂線上の部分に、対向して高周
波電力の加熱室2の内部への給電口5,6が設けられ、
この給電口5,6は管軸方向が90度異なる導波管7,8
により加熱室2の外に設けた高周波発生装置9,10に高
周波的に結合されている。ここで、給電口5,6に導く
導波管7,8の管軸方向を一致させると、それぞれの給
電口5,6より発せられた高周波が他方の給電口5,6
を高周波励振し、反対側の導波管7,8を通して互いに
高周波発生装置9,10を加熱するなどの悪影響を生じる
ため、導波管7,8の管軸方向を最も影響の少ない90度
に交差させている。また、高周波発生装置9,10の冷却
のためにそれぞれの高周波発生装置9,10が設けられた
加熱室2の後側壁11の外側と、右側壁12の外側にそれぞ
れブロアーモータ13,14が設けられている。被加熱物15
へは給電口5,6より上下両面に高周波が印加され加熱
される。An example of this conventional method will be described with reference to the drawings. FIG. 5 is a partially cutaway perspective view of a main part of a conventional high frequency heating apparatus, and FIG. 6 is a top cutaway plan view of the same high frequency heating apparatus. In FIGS. 5 and 6, reference numeral 1 denotes a high-frequency heating apparatus main body, and a central lead of a heating-chamber upper wall 3 and a heating-chamber bottom wall 4 constituting a heating chamber 2 provided inside the high-frequency heating apparatus main body 1. Power supply ports 5 and 6 to the inside of the heating chamber 2 for high-frequency power are provided opposite to each other on the vertical line,
These power supply ports 5 and 6 are waveguides 7 and 8 whose tube axis directions differ by 90 degrees.
Are coupled to the high frequency generators 9 and 10 provided outside the heating chamber 2 in terms of high frequency. Here, when the tube axes of the waveguides 7 and 8 guided to the power feed ports 5 and 6 are made to coincide with each other, the high frequency waves emitted from the respective power feed ports 5 and 6 are the other power feed ports 5 and 6.
Is excited at a high frequency to cause adverse effects such as heating the high frequency generators 9 and 10 through the waveguides 7 and 8 on the opposite side, so that the tube axis directions of the waveguides 7 and 8 are set to 90 degrees, which is the least affected. Crossed. Further, blower motors 13 and 14 are provided outside the rear side wall 11 and outside the right side wall 12, respectively, of the heating chamber 2 in which the high frequency generators 9 and 10 are provided for cooling the high frequency generators 9 and 10, respectively. Has been. Heated object 15
High frequency is applied to the upper and lower surfaces from the power supply ports 5 and 6 and is heated.
発明が解決しようとする問題点 しかしながら、この種の従来の高周波加熱装置による
と、導波管7,8の管軸方向が90度交差して構成され、
これら導波管7,8に対応して高周波発生装置9,10お
よびブロアーモータ13,14が配されるため、加熱室2に
対し装置全体が非常に大きくなり、近年特に要求される
省スペースという課題に対応しえないという問題を生じ
た。However, according to the conventional high-frequency heating device of this type, the waveguide axes of the waveguides 7 and 8 are configured to intersect at 90 degrees,
Since the high-frequency generators 9 and 10 and the blower motors 13 and 14 are arranged corresponding to the waveguides 7 and 8, the entire apparatus becomes very large with respect to the heating chamber 2, which is a space saving particularly required in recent years. There was a problem that I could not deal with the problem.
本発明は上記問題点を解決するものであり、省スペース
という課題に対応した高周波加熱装置を提供することを
目的とするものである。The present invention solves the above problems, and an object of the present invention is to provide a high-frequency heating device that addresses the problem of space saving.
問題点を解決するための手段 上記問題点を解決するため本発明は、高周波加熱装置本
体内の加熱室を構成する加熱室側壁の一つの面の外側に
設けられた2台の高周波発生装置と、前記加熱室を構成
する加熱室上壁および加熱室底壁の中心鉛直線上の部分
にそれぞれ設けた高周波電力の給電口と、前記2台の高
周波発生装置にて発生された高周波電力をそれぞれの前
記給電口へ導き、かつこの給電口部分での管軸方向が異
なる2つの導波管と、互いの前記給電口への直接の高周
波放射を避ける金属性の覆い板とを設けたものである。Means for Solving the Problems In order to solve the above problems, the present invention relates to two high-frequency generators provided outside one surface of a heating chamber side wall forming a heating chamber in a high-frequency heating device body. A high-frequency power supply port provided on each of the heating chamber upper wall and the heating chamber bottom wall on the central vertical line of the heating chamber, and high-frequency power generated by the two high-frequency generators. Two waveguides that are guided to the power supply port and have different tube axis directions at the power supply port portion and a metallic cover plate that avoids direct high-frequency radiation to the power supply port are provided. .
作用 上記構成により、2台の高周波発生装置によりそれぞれ
発せられた高周波は導波管により一方は加熱室上壁側
へ、他方は加熱室底壁側へ導かれ、それぞれの壁間部分
で壁面に沿う方向へ曲げられ、それぞれの壁面の中央部
分れすなわち加熱室の中心の鉛直線上の部分に設けられ
た給電口へ異なる管軸の方向から向い、給電口により加
熱室を高周波励振する。このとき高周波電界の進行方向
が金属性の覆いにより、直接他方の給電口方向へ直接向
かうことが避けられる。Operation With the above configuration, the high frequencies generated by the two high frequency generators are guided by the waveguide, one to the upper wall side of the heating chamber and the other to the lower wall side of the heating chamber. The heating chamber is bent in the direction along the direction, and is directed from a different tube axis direction to a power feeding port provided at a central portion of each wall surface, that is, a portion on the vertical line at the center of the heating chamber, and the heating chamber is excited by a high frequency by the power feeding port. At this time, the traveling direction of the high-frequency electric field is prevented from directly going to the other power feeding port by the metallic cover.
実施例 以下、本発明の一実施例を図面に基づいて説明する。Embodiment An embodiment of the present invention will be described 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側面
断面図、第2図は同高周波加熱装置の要部斜視図であ
る。ここで、従来例と同一の構成部品には同一の番号を
付して説明を省略する。第1図において、21,22は直径
25mmの円型をした給電口であり、高周波加熱装置本体1
の内部に設けられた加熱室2を構成する加熱室の上壁3
および加熱室の底壁4の中央垂直線上の部分に設けられ
ている。そして、加熱室後側壁11の外側には、ほぼ同一
の高さに並べて高周波発生装置9,10が第2図に示すよ
うに設けられている。また、上壁3に設けられた給電口
21と高周波発生装置9とは導波管23により結合され、底
壁4に設けられた給電口22と高周波発生装置10とは導波
管24により結合されている。上記のように、上下の給電
口21,22は中央鉛直線上(加熱室の中心)にあり、また
高周波発生装置9,10は後側壁11の外側に並列して配さ
れているため、導波管23,24は途中で管軸方向を曲げた
構造となっており、給電口21,22との結合部分における
それぞれの導波管23,24の管軸がなす角度αが第3図に
示すごとくほぼ直角となるように、曲げ位置が設定され
ている。FIG. 1 is a side sectional view of a high frequency heating apparatus showing an embodiment of the present invention, and FIG. 2 is a perspective view of a main part of the high frequency heating apparatus. Here, the same components as those of the conventional example are designated by the same reference numerals and the description thereof will be omitted. In Fig. 1, 21 and 22 are diameters
It is a 25 mm circular power supply port, and the high frequency heating device body 1
Upper wall 3 of the heating chamber constituting the heating chamber 2 provided inside the
And it is provided in the portion on the central vertical line of the bottom wall 4 of the heating chamber. Further, on the outer side of the rear wall 11 of the heating chamber, high-frequency generators 9 and 10 are provided side by side at substantially the same height as shown in FIG. In addition, a power supply port provided on the upper wall 3
21 and the high frequency generator 9 are connected by a waveguide 23, and the power supply port 22 provided on the bottom wall 4 and the high frequency generator 10 are connected by a waveguide 24. As described above, since the upper and lower power supply ports 21 and 22 are on the central vertical line (center of the heating chamber), and the high frequency generators 9 and 10 are arranged in parallel outside the rear side wall 11, The tubes 23 and 24 have a structure in which the tube axis direction is bent on the way, and the angle α formed by the tube axes of the respective waveguides 23 and 24 at the coupling portion with the feed ports 21 and 22 is shown in FIG. The bending positions are set so that they are almost at right angles.
また、それぞれの給電口21,22には、導波管23,24と加
熱室2を高周波電界結合を行う直径15mmの金属性のアン
テナ25,26が駆動モータ27,28の誘電体の出力軸によ
り、回動自在に垂直に軸支されている。アンテナ25,26
は導波管23,24の内部で高周波電界を受け、アンテナ先
端29,30にて加熱室2の壁との間に高周波電界を生じさ
せて加熱室2の内部に高周波の励振を行う。このアンテ
ナ先端29,30にはそれぞれ回転軸に直角に扇型の平面を
有する金属性の覆い板31,32が固着されており、この覆
い板31,32はそれぞれのアンテナ25,26を軸として高周
波加熱装置使用中に回動し、電界撹拌翼として動作する
とともに、高周波が一方の給電口21,22より他方へ直進
することを防止するためそれぞれの給電口21,22部分か
ら互いに他方の給電口への直接放射を避けることができ
る。この覆い板31の下方には誘電体の仕切板33を設け、
被加動物15および使用者が覆い板31へ触れることを防止
し、覆い板32の上方には誘電体の被加熱物載置台34を設
け覆い板32の回動域を確保している。In addition, metallic antennas 25 and 26 having a diameter of 15 mm for performing high-frequency electric field coupling between the waveguides 23 and 24 and the heating chamber 2 are provided at the power supply ports 21 and 22, respectively, and output shafts of the dielectrics of the drive motors 27 and 28. Is rotatably supported vertically. Antenna 25, 26
Receives a high frequency electric field inside the waveguides 23 and 24, and generates a high frequency electric field between the tip ends 29 and 30 of the antenna and the wall of the heating chamber 2 to excite the high frequency inside the heating chamber 2. Metallic cover plates 31 and 32 each having a fan-shaped flat surface are fixed to the antenna tips 29 and 30 at right angles to the rotation axis. The cover plates 31 and 32 have the antennas 25 and 26 as axes, respectively. While rotating while using the high-frequency heating device, it operates as an electric field stirring blade, and in order to prevent high frequencies from going straight from one power supply port 21, 22 to the other, power supply from each power supply port 21, 22 to the other Avoid direct radiation to the mouth. Below this cover plate 31, a dielectric partition plate 33 is provided,
The object to be heated 15 and the user are prevented from touching the cover plate 31, and the object-to-be-heated object mounting table 34 of a dielectric is provided above the cover plate 32 to secure a rotation range of the cover plate 32.
高周波発生装置9,10の冷却は1つのブロアーモータ35
の出力軸に結合された2台のファン36,37により発生し
た冷却風をガイド38,39を通して吹きつけて行う構成と
なっている。これらファン36,37の吸気口40,41の近傍
にはそれぞれの高周波発生装置9,10の動作に必要な電
力を供給する2つの電源トランス42,43を配置し、高周
波加熱装置本体1の外より内部へ吸入された冷却風の流
れが電源トランス42,43の表面を通過するような構成と
なっている。第3図および第4図の矢印は風の流れを示
すものである。One blower motor 35 is used to cool the high frequency generators 9 and 10.
The cooling air generated by the two fans 36, 37 connected to the output shaft of the above is blown through the guides 38, 39. Two power supply transformers 42, 43 for supplying electric power required for the operation of the respective high frequency generators 9, 10 are arranged in the vicinity of the intake ports 40, 41 of the fans 36, 37. The structure is such that the flow of the cooling air sucked in further passes through the surfaces of the power transformers 42 and 43. The arrows in FIGS. 3 and 4 indicate the flow of wind.
このように、導波管23,24を給電口21,22で管軸方向が
ほぼ直角となるように構成し、高周波発生装置9,10を
加熱室後側壁11の外側にまとめて設けたことにより、高
周波加熱装置本体1の幅寸法を、たとえば、従来の外形
寸法520mm(幅)×560mm(奥行き)×360mm(高さ)の
ものを430mm(幅)×560mm(奥行き)×360mm(高さ)
にでき、幅を90mmだけ小さくすることができる。また、
給電口21,22に覆い板31,32を設けたことにより、互い
に他方の高周波発生装置9,10への加熱現象を大巾に減
少させ、また、高周波の撹拌効果によって加熱むらを減
少させることができる。さらに、高周波発生装置9,10
電源トランス42,43、冷却用のブロアーモータ35といっ
た重量の大きいものをすべて同一加熱室後側壁11の外側
に集中して設けたため、高周波加熱装置本体1の重心も
その部分に位置するようになり、設置状態が安定したも
のとなり、高周波加熱装置の扉44の開閉にともなう高周
波加熱装置本体11のぐらつきによる被加熱物15の移動、
たとえば液状の被加熱物15が容器よりこぼれ出すなどの
不具合をなくすことができる。また、高周波加熱装置の
設置場所として壁に棚を設けてその棚に設置する場合な
ど、従来と比較して棚も壁に近い部分応力がかかるた
め、簡易な構成とすることが可能となり、設置工事もや
りやすくできる。In this way, the waveguides 23 and 24 are configured such that the tube axis directions are substantially orthogonal to each other at the power supply ports 21 and 22, and the high frequency generators 9 and 10 are collectively provided outside the heating chamber rear side wall 11. As a result, the width of the high-frequency heating device main body 1 is, for example, 430 mm (width) × 560 mm (depth) × 360 mm (height) for the conventional external dimensions of 520 mm (width) × 560 mm (depth) × 360 mm (height). )
The width can be reduced by 90 mm. Also,
By providing the power supply ports 21 and 22 with the cover plates 31 and 32, it is possible to greatly reduce the heating phenomenon to the other high-frequency generators 9 and 10, and to reduce the uneven heating due to the high-frequency stirring effect. You can Furthermore, the high frequency generators 9 and 10
Since all heavy components such as the power transformers 42 and 43 and the blower motor 35 for cooling are concentrated on the outer side of the rear side wall 11 of the same heating chamber, the center of gravity of the high frequency heating device body 1 is also located in that part. The installation state becomes stable, and the object to be heated 15 moves due to the wobbling of the main body 11 of the high-frequency heating device when the door 44 of the high-frequency heating device is opened and closed,
For example, it is possible to eliminate the problem that the liquid heated object 15 spills out of the container. In addition, when a shelf is installed on the wall as the installation location of the high frequency heating device and the shelf is installed on the shelf, a partial stress closer to the wall is applied to the shelf than in the conventional case, so that a simple configuration can be achieved. Construction can be done easily.
なお、本実施例においては、ブロアーモータ35の出力軸
の両側に結合されたフィン36,37を高周波発生装置9,
10の冷却手段としているが、ファンを1台とし、ファン
の吹出し口部分にて冷却風を二つに分割し、それぞれの
高周波発生装置9,10に冷却風を当接せしめるという構
成にしてもよい。また、アンテナ25,26を軸として高周
波加熱装置使用中回動する2台の覆い板31,32を設けて
いるが、一方のアンテナのみが覆いを有する構成として
もよい。さらに、本実施例は高周波発生装置9,10を加
熱室後側壁11の外側に配しているが、高周波発生装置
9,10を加熱室の左側壁あるいは右側壁のどちらか一方
の外側に並べて配置してもよい。In this embodiment, the fins 36, 37 connected to both sides of the output shaft of the blower motor 35 are connected to the high frequency generator 9,
Although the cooling means 10 is used, it is also possible to use one fan, divide the cooling air into two at the outlet of the fan, and bring the cooling air into contact with the respective high-frequency generators 9 and 10. Good. Further, although the two cover plates 31 and 32 which rotate about the antennas 25 and 26 as the axes during use of the high frequency heating device are provided, only one of the antennas may have the cover. Further, in this embodiment, the high frequency generators 9 and 10 are arranged outside the heating chamber rear side wall 11, but the high frequency generators 9 and 10 are arranged outside either the left side wall or the right side wall of the heating chamber. You may arrange.
発明の効果 以上、本発明によれば、給電口部分での導波管の管軸方
向をずらし、高周波発生装置を加熱室側壁の一面の外側
に集中して設けたことにより、従来と比較して互いに他
方の高周波発生装置により加熱減少を少なくしなら、本
体の奥行が幅寸法のいずれが一方を高周波発生装置およ
びその冷却用ブロアーモータの分だけ小さくすることが
でき、特に設置スペースが重要視されるホテル、レスト
ランの顧客室や、コンビニエンスストアなどんカウンタ
ーに設置されるいわゆる業務用の高周波加熱装置として
省スペースの効果は大きい。さらに、給電口部分での導
波管の管軸方向をずらし、高周波の直進性を利用し金属
性の覆い板を少なくとも一方の給電口部分に設け、一方
の給電口から他方の給電口へ直接放射できない構成とし
たことにより、給電口より加熱室へ向う高周波は覆い板
により反射され、直接被加熱物へ向ったり、他の給電口
へ向うことができず、したがって、互いに他の高周波発
生装置への加熱現象を大幅に減じ、その耐久機能を増
し、かつ高周波の撹拌効果による加熱ムラ性能の向上を
得ることができる。As described above, according to the present invention, the tube axis direction of the waveguide at the power feed port portion is shifted, and the high frequency generators are concentrated on the outside of one surface of the heating chamber side wall. If the reduction in heating is reduced by the other high frequency generator, the depth of the main body can be reduced by the width dimension of either one by the high frequency generator and its cooling blower motor, and installation space is especially important. As a so-called commercial high-frequency heating device installed in customer rooms of hotels and restaurants, counters such as convenience stores, the effect of saving space is great. Furthermore, by shifting the tube axis direction of the waveguide at the power feed port, a metal cover plate is provided on at least one power feed port using the straightness of high frequency, and one power feed port directly goes to the other power feed port. Due to the structure that cannot radiate, the high frequency wave that goes from the power feed port to the heating chamber is reflected by the cover plate, and cannot directly go to the object to be heated or go to another power feed port. It is possible to drastically reduce the heating phenomenon to the above, increase its durability function, and improve the heating unevenness performance by the high frequency stirring effect.
第1図は本発明の一実施例を示す高周波加熱装置の側面
断面図、第2図は同高周波加熱装置の要部斜視図、第3
図は同高周波加熱装置の一部切欠き平面断面図、第4図
は同高周波加熱装置の背面断面図、第5図は従来の高周
波加熱装置の要部の一部切欠き斜視図、第6図は同高周
波加熱装置の上部切欠き平面図である。 1…高周波加熱装置本体、2…加熱室、9,10…高周波
発生装置、21,22…給電口、23,24…導波管、31,32…覆
い板、35…ブロアモータ。FIG. 1 is a side sectional view of a high-frequency heating apparatus showing an embodiment of the present invention, FIG. 2 is a perspective view of a main part of the high-frequency heating apparatus, and FIG.
FIG. 4 is a partially cutaway plan sectional view of the same high-frequency heating apparatus, FIG. 4 is a rear sectional view of the same high-frequency heating apparatus, and FIG. 5 is a partially cutaway perspective view of a main part of a conventional high-frequency heating apparatus. The figure is an upper cutaway plan view of the same high-frequency heating device. DESCRIPTION OF SYMBOLS 1 ... Main body of high frequency heating device, 2 ... Heating chamber, 9, 10 ... High frequency generating device, 21, 22 ... Power supply port, 23, 24 ... Waveguide, 31, 32 ... Cover plate, 35 ... Blower motor.
Claims (2)
加熱室側壁の一つの面の外側に設けられた2台の高周波
発生装置と、前記加熱室を構成する加熱室上壁および加
熱室底壁の中心鉛直線上の部分にそれぞれ設けた高周波
電力の給電口と、前記2台の高周波発生装置にて発生さ
れた高周波電力をそれぞれの前記給電口へ導き、かつこ
の給電口部分での管軸方向が異なる2つの導波管と、互
いの前記給電口への直接の高周波放射を避ける金属性の
覆い板とを設けた高周波加熱装置。1. A high frequency generator provided outside one surface of a side wall of a heating chamber constituting a heating chamber in a main body of the high frequency heating device, and an upper wall and a heating chamber constituting the heating chamber. High-frequency power supply ports respectively provided on the central vertical line of the bottom wall and high-frequency power generated by the two high-frequency generators are guided to the respective power supply ports, and a pipe at this power supply port part A high-frequency heating device provided with two waveguides having different axial directions and a metallic cover plate for avoiding direct high-frequency radiation to the power supply port.
ータにて冷却する構成とした特許請求の範囲第1項記載
の高周波加熱装置。2. The high-frequency heating device according to claim 1, wherein the two high-frequency generators are cooled by one blower motor.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2275587A JPH0665153B2 (en) | 1987-02-03 | 1987-02-03 | High frequency heating device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2275587A JPH0665153B2 (en) | 1987-02-03 | 1987-02-03 | High frequency heating device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS63193491A JPS63193491A (en) | 1988-08-10 |
JPH0665153B2 true JPH0665153B2 (en) | 1994-08-22 |
Family
ID=12091502
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2275587A Expired - Lifetime JPH0665153B2 (en) | 1987-02-03 | 1987-02-03 | High frequency heating device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0665153B2 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3077879B2 (en) * | 1994-02-15 | 2000-08-21 | インターナショナル・ビジネス・マシーンズ・コーポレ−ション | Apparatus and method for applying microwave energy to a web-type quantified processing material |
JP4969475B2 (en) * | 2008-02-07 | 2012-07-04 | 三菱電機株式会社 | Microwave heating device |
-
1987
- 1987-02-03 JP JP2275587A patent/JPH0665153B2/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
JPS63193491A (en) | 1988-08-10 |
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