JPS6110953B2 - - Google Patents
Info
- Publication number
- JPS6110953B2 JPS6110953B2 JP7095180A JP7095180A JPS6110953B2 JP S6110953 B2 JPS6110953 B2 JP S6110953B2 JP 7095180 A JP7095180 A JP 7095180A JP 7095180 A JP7095180 A JP 7095180A JP S6110953 B2 JPS6110953 B2 JP S6110953B2
- Authority
- JP
- Japan
- Prior art keywords
- antenna
- heating chamber
- waveguide
- heating
- electric field
- 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
Links
- 238000010438 heat treatment Methods 0.000 claims description 28
- 230000005684 electric field Effects 0.000 claims description 7
- 230000005855 radiation Effects 0.000 description 7
- 230000000694 effects Effects 0.000 description 6
- 238000001816 cooling Methods 0.000 description 4
- 235000013305 food Nutrition 0.000 description 4
- 238000010411 cooking Methods 0.000 description 3
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 239000003989 dielectric material Substances 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 229910052573 porcelain Inorganic materials 0.000 description 1
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
- H05B6/72—Radiators or antennas
- H05B6/725—Rotatable antennas
-
- 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
- H05B6/642—Cooling of the microwave components and related air circulation systems
-
- 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
- H05B6/647—Aspects related to microwave heating combined with other heating techniques
- H05B6/6482—Aspects related to microwave heating combined with other heating techniques combined with radiant heating, e.g. infrared heating
- H05B6/6485—Aspects related to microwave heating combined with other heating techniques combined with radiant heating, e.g. infrared heating further combined with convection heating
-
- 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
- H05B6/72—Radiators or antennas
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Constitution Of High-Frequency Heating (AREA)
Description
【発明の詳細な説明】
本発明は回転アンテナを用いて高周波エネルギ
ーを加熱室内に供給する高周波加熱装置に関する
もので、回転アンテナの加熱室への取付け位置を
選定することにより垂直部分からの電波放射を最
小限におさえ、水平部分からの電波放射を増やし
てアンテナの回転効果を高め、電波による加熱む
らをなくして、分布性能を向上させることを目的
とする。Detailed Description of the Invention The present invention relates to a high-frequency heating device that uses a rotating antenna to supply high-frequency energy into a heating chamber, and by selecting the mounting position of the rotating antenna in the heating chamber, radio wave radiation from the vertical portion can be reduced. The aim is to minimize this, increase radio wave radiation from the horizontal part, enhance the rotation effect of the antenna, eliminate uneven heating caused by radio waves, and improve distribution performance.
従来最も簡単な形状で構成しやすいことから略
Ｌ字形状の回転アンテナが用いられているが、こ
のアンテナの欠点は大部分の電波の放射がその垂
直部分よりなされる垂直電界結合形になつてお
り、水平部分からの電波放射が極めて少ないの
で、その回転効果があまり良くないということで
あつた。そこで本発明は加熱室の寸法を単一又は
複数の共振モードが得られるように設定し、更に
回転アンテナと加熱室の結合位置を、共振モード
の電界最少点又はその近傍に選ぶことにより、ア
ンテナの垂直部分からの電波放射を少なくし、水
平部分よりの電波放射を増やし、アンテナの回転
効果を高めることによつて分布性能を改善するも
のであり以下本発明の一実施例について添付図面
と共に説明する。 Traditionally, an approximately L-shaped rotating antenna has been used because it has the simplest shape and is easy to configure, but the drawback of this antenna is that it is a vertical electric field coupling type in which most of the radio waves are radiated from its vertical portion. Since there was very little radio wave radiation from the horizontal part, the rotation effect was not very good. Therefore, in the present invention, the dimensions of the heating chamber are set so as to obtain a single or multiple resonance modes, and the coupling position of the rotating antenna and the heating chamber is selected at or near the electric field minimum point of the resonance mode. The antenna improves the distribution performance by reducing the radio wave radiation from the vertical part, increasing the radio wave radiation from the horizontal part, and enhancing the rotation effect of the antenna.An embodiment of the present invention will be described below with reference to the accompanying drawings. do.
第１図に示す加熱調理器は流し台に組込まれた
ビルトインタイプのものであり、上部天面には電
気コンロ１が４個配置され煮物料理ができるよう
になつている。上記電気コンロ１は加熱調理器の
前面パネルに設けられたツマミ２で制御される構
成であり、同じパネルに加熱調理器の制御ツマミ
３が配置されている。４は制御パネルの下部で把
手５を有するドア６の上方に位置して設けられた
冷却用吸排気孔である。７は調理器本体の下方に
設けられたアタツチメント等の小物入れ用の引出
しである。 The heating cooker shown in FIG. 1 is a built-in type built into a sink, and four electric stoves 1 are arranged on the top surface of the cooker for cooking boiled food. The electric stove 1 is controlled by a knob 2 provided on the front panel of the cooking device, and a control knob 3 of the cooking device is arranged on the same panel. Reference numeral 4 denotes a cooling intake/exhaust hole located above a door 6 having a handle 5 at the bottom of the control panel. Reference numeral 7 designates a drawer provided below the main body of the cooker for storing small items such as attachments.
次に第２図において、ドア６はレール８により
スライドする引出式となつており、ドア６の内面
には食品等を載せる棚９が設けられている。 Next, in FIG. 2, the door 6 is of a pull-out type that slides on a rail 8, and a shelf 9 is provided on the inner surface of the door 6 on which foods and the like can be placed.
したがつてドア６を引き出すと棚９が出てくる
ので食品の出入れがしやすく使い勝手がよい。１
０は食品を加熱調理する加熱室で、上方には加熱
室上壁と略平行に上ヒータ１１が設けられてお
り、加熱室の外底壁には下ヒータ１１′が設けら
れている。 Therefore, when the door 6 is pulled out, the shelf 9 comes out, making it easy to take food in and out, and is convenient to use. 1
Reference numeral 0 denotes a heating chamber in which food is cooked, and an upper heater 11 is provided above the heating chamber substantially parallel to the upper wall of the heating chamber, and a lower heater 11' is provided on the outer bottom wall of the heating chamber.
１２は加熱室１０の後部に設けられた熱風循環
用のフアンで、加熱室内の温度分布を均一するも
のである。１３は加熱室１０の外周に設けた断熱
材で、加熱室外壁からの熱放散を防止して熱効率
をよくしている。１４は高周波発振器であるマグ
ネトロンで、Ｚ型導波管１５を介して高周波エネ
ルギーが伝送される構成であり、導波管１５の一
端は加熱室１０の上壁の略中央に設けられた給電
口１６に結合されている。上記給電口１６にはＬ
型回転アンテナ１７が回転自在に貫通して設けら
れており、この回転アンテナ１７は垂直部１８と
水平部１９で構成されている。上記アンテナ１７
の垂直部１８の一端は導波管１５内においてアル
ミナ磁器などの低損失誘電体で構成されれたアン
テナ駆動軸２０に固着されており、このアンテナ
駆動軸２０は導波管１５の上壁を貫通してモータ
２４に接続されこれによつて回転駆動される。 Reference numeral 12 denotes a fan for circulating hot air provided at the rear of the heating chamber 10, which makes the temperature distribution within the heating chamber uniform. Reference numeral 13 denotes a heat insulating material provided around the outer periphery of the heating chamber 10, which prevents heat dissipation from the outer wall of the heating chamber and improves thermal efficiency. 14 is a magnetron which is a high frequency oscillator, and has a configuration in which high frequency energy is transmitted through a Z-shaped waveguide 15, and one end of the waveguide 15 is connected to a power feeding port provided approximately in the center of the upper wall of the heating chamber 10. 16. The above power supply port 16 has an L
A rotary antenna 17 is rotatably provided therethrough, and the rotary antenna 17 is composed of a vertical portion 18 and a horizontal portion 19. The above antenna 17
One end of the vertical portion 18 is fixed within the waveguide 15 to an antenna drive shaft 20 made of a low-loss dielectric material such as alumina porcelain. It is connected to a motor 24 through it and is rotationally driven by this.
２７は給電口１６を封口する封口板で、低損失
性の誘電体で構成され、加熱室１０内の熱気が導
波管１５を通つてマグネトロン１４に行かないよ
うにしている。したがつて上記回転アンテナ１７
は封口板２７と導波管１５の上壁を軸受けにして
回転する。 A sealing plate 27 seals the power supply port 16 and is made of a low-loss dielectric to prevent hot air in the heating chamber 10 from passing through the waveguide 15 to the magnetron 14 . Therefore, the rotating antenna 17
rotates using the sealing plate 27 and the upper wall of the waveguide 15 as bearings.
次に第３図に示すように加熱室１０内には選択
された特定のモード（本実施例の場合では503の
モード）が発生するような寸法に設定し、しかも
回転アンテナ１７の垂直部１８は設定されたモー
ド電界最少点で加熱室と結合するようにして取付
けられている。（特定のモードを発生させる数の
加熱室の各寸法は一般に次式により求められる。 Then, as shown in FIG. is attached to the heating chamber at the set mode electric field minimum point. (The dimensions of the number of heating chambers that generate a specific mode are generally determined by the following formula.
ｍ、ｎ、ｐ＝定在波の山の数。従つてこのモー
ドはアンテナの垂直部分からは励振されず、アン
テナの水平部分が回転して電界最大の位置付近を
通過する時に励振される。 m, n, p = number of crests of standing waves. Therefore, this mode is not excited from the vertical part of the antenna, but when the horizontal part of the antenna rotates and passes near the position of the electric field maximum.
従つてアンテナの垂直部分からの電波放射は非
常に少なくなり、水平部分からの電波放射が多く
なり、それを回転させることによる回転効果が上
がり、分布性能が良くなる。 Therefore, the radio wave radiation from the vertical part of the antenna becomes very small, and the radio wave radiation from the horizontal part increases, and by rotating it, the rotation effect increases and the distribution performance improves.
尚本実施例では加熱室内には単一モードしか存
在しないが、複数のモードが同時に励振されるよ
うな加熱室寸法に設定した場合は、全てのモード
の電界最少点の交点、もしくはその付近でアンテ
ナの垂直部分を結合させると良い。 In this example, only a single mode exists in the heating chamber, but if the dimensions of the heating chamber are set so that multiple modes are excited at the same time, the electric field of all modes will be excited at or near the intersection of the minimum electric field points. It is better to combine the vertical parts of the antenna.
３２はマグネロン１４の冷却フアンで、エアー
ガイド３３を介して吸排気口４から吸排気する構
成である。 Reference numeral 32 denotes a cooling fan of the Magnelon 14, which is configured to take in and exhaust air from the air intake and exhaust ports 4 via an air guide 33.
マグネトロン１４からの電波はＺ型の導波管１
５を通り、モーター２４で回転駆動される回転ア
ンテナ１７から加熱室１０内に放射される。そし
てマグネトロン１４の冷却風は吸排気口４より入
り、冷却フアン３２によりマグネトロン１４を冷
却して吸排気口４より前面に排出される。 The radio waves from the magnetron 14 pass through the Z-shaped waveguide 1
5 and is radiated into the heating chamber 10 from a rotating antenna 17 that is rotationally driven by a motor 24. The cooling air for the magnetron 14 enters through the intake/exhaust port 4, cools the magnetron 14 by the cooling fan 32, and is discharged to the front through the intake/exhaust port 4.
以上説明したように本発明によればアンテナの
回転効果を高め電波による回転効果を高め、分布
性能を飛躍的に向上することができる。 As explained above, according to the present invention, it is possible to enhance the rotation effect of the antenna, enhance the rotation effect by radio waves, and dramatically improve the distribution performance.
第１図は本発明の一実施例を示す高周波加熱装
置の斜視図、第２図は同縦断面図、第３図は同要
部の拡大図である。
１０……加熱室、１１……上ヒーター、１４…
…マグネトロン、１５……Ｚ型導波管、１７……
回転アンテナ。
FIG. 1 is a perspective view of a high-frequency heating device showing an embodiment of the present invention, FIG. 2 is a longitudinal cross-sectional view of the same, and FIG. 3 is an enlarged view of the essential parts. 10...Heating chamber, 11...Upper heater, 14...
...Magnetron, 15...Z-type waveguide, 17...
rotating antenna.
Claims (1)
加熱室と導波管を高周波的に結合する回転アンテ
ナとを有し、前記回転アンテナは垂直部分と水平
部分よりなり、その垂直部分をアンテナの回転軸
とし、前記加熱室の共振モードの電界最小点又は
その近傍に位置するように選択的に取付けたこと
を特徴とする高周波加熱装置。1. A heating chamber, a high-frequency oscillator, a waveguide, and a rotating antenna that couples the heating chamber and the waveguide in a high-frequency manner, and the rotating antenna consists of a vertical portion and a horizontal portion, and the vertical portion is 1. A high-frequency heating device, characterized in that the antenna is selectively mounted such that the rotation axis of the antenna is at or near the minimum electric field point of the resonance mode of the heating chamber.
Priority Applications (7)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7095180A JPS56167295A (en) | 1980-05-28 | 1980-05-28 | High frequency heater |
| SE8102750A SE446561B (en) | 1980-05-28 | 1981-04-30 | HOGFREKVENSUPPVERMNINGSAPPARAT |
| DE19813118136 DE3118136C2 (en) | 1980-05-28 | 1981-05-07 | High frequency heater |
| NL8102278A NL8102278A (en) | 1980-05-28 | 1981-05-08 | HIGH-FREQUENCY HEATING DEVICE. |
| CH312781A CH653510A5 (en) | 1980-05-28 | 1981-05-13 | HIGH FREQUENCY HEATER. |
| GB8114793A GB2078070B (en) | 1980-05-28 | 1981-05-14 | Microwave oven |
| FR8110494A FR2484758A1 (en) | 1980-05-28 | 1981-05-26 | HIGH FREQUENCY COOKING APPARATUS |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7095180A JPS56167295A (en) | 1980-05-28 | 1980-05-28 | High frequency heater |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS56167295A JPS56167295A (en) | 1981-12-22 |
| JPS6110953B2 true JPS6110953B2 (en) | 1986-04-01 |
Family
ID=13446315
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7095180A Granted JPS56167295A (en) | 1980-05-28 | 1980-05-28 | High frequency heater |
Country Status (7)
| Country | Link |
|---|---|
| JP (1) | JPS56167295A (en) |
| CH (1) | CH653510A5 (en) |
| DE (1) | DE3118136C2 (en) |
| FR (1) | FR2484758A1 (en) |
| GB (1) | GB2078070B (en) |
| NL (1) | NL8102278A (en) |
| SE (1) | SE446561B (en) |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3798404A (en) * | 1972-12-21 | 1974-03-19 | Gen Electric | Electronic oven with mode exciter |
| DE2459351C3 (en) * | 1973-12-18 | 1978-05-03 | Matsushita Electric Industrial Co., Ltd., Kadoma, Osaka (Japan) | Microwave oven |
| GB1543980A (en) * | 1975-05-19 | 1979-04-11 | Matsushita Electric Ind Co Ltd | Microwave heating apparatus |
-
1980
- 1980-05-28 JP JP7095180A patent/JPS56167295A/en active Granted
-
1981
- 1981-04-30 SE SE8102750A patent/SE446561B/en not_active IP Right Cessation
- 1981-05-07 DE DE19813118136 patent/DE3118136C2/en not_active Expired
- 1981-05-08 NL NL8102278A patent/NL8102278A/en not_active Application Discontinuation
- 1981-05-13 CH CH312781A patent/CH653510A5/en not_active IP Right Cessation
- 1981-05-14 GB GB8114793A patent/GB2078070B/en not_active Expired
- 1981-05-26 FR FR8110494A patent/FR2484758A1/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| DE3118136C2 (en) | 1983-03-31 |
| NL8102278A (en) | 1981-12-16 |
| JPS56167295A (en) | 1981-12-22 |
| GB2078070B (en) | 1983-10-05 |
| DE3118136A1 (en) | 1982-02-18 |
| CH653510A5 (en) | 1985-12-31 |
| SE8102750L (en) | 1981-11-29 |
| FR2484758B1 (en) | 1984-02-10 |
| SE446561B (en) | 1986-09-22 |
| GB2078070A (en) | 1981-12-23 |
| FR2484758A1 (en) | 1981-12-18 |
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