JPS5826628B2 - High frequency heating device - Google Patents
High frequency heating deviceInfo
- Publication number
- JPS5826628B2 JPS5826628B2 JP51110250A JP11025076A JPS5826628B2 JP S5826628 B2 JPS5826628 B2 JP S5826628B2 JP 51110250 A JP51110250 A JP 51110250A JP 11025076 A JP11025076 A JP 11025076A JP S5826628 B2 JPS5826628 B2 JP S5826628B2
- Authority
- JP
- Japan
- Prior art keywords
- lead wire
- heating chamber
- hole
- wall surface
- 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
Links
Landscapes
- Control Of High-Frequency Heating Circuits (AREA)
- Electric Ovens (AREA)
Description
【発明の詳細な説明】
本発明は焦げ目付は用のヒータを備えた高周波加熱装置
に関するもので、その目的とするところは加熱室内から
高周波電磁波が漏れたり、とのヒータによる加熱効率が
低下したりするのを防止することにある。[Detailed Description of the Invention] The present invention relates to a high-frequency heating device equipped with a heater for browning, and its purpose is to prevent leakage of high-frequency electromagnetic waves from the heating chamber and reduce the heating efficiency of the heater. The purpose is to prevent this from happening.
高周波電磁波で食品の外部と内部を均一に加熱し、その
後ヒータによって食品の表面に焦げ目を付ける高周波加
熱装置が実用化され脚光を浴びている。High-frequency heating devices that uniformly heat the outside and inside of food using high-frequency electromagnetic waves and then brown the surface of the food using a heater have been put into practical use and are attracting attention.
しかしながら、現在実用化されているものはヒータに接
続するリード線を加熱室の壁面と絶縁するために、第１
図に示すように上記壁面１に穿設した貫通孔２に一定の
間隙をおいてリード線３を貫通させてかり、したがって
次のような欠点があったっ
つ１す、この欠点とは高周波電磁波に対しては上記リー
ド線３が内部導体化し、また壁面１が外部導体化し、し
たがってこの同軸経路を通って加熱室内４から加熱室外
５に高周波電磁波が漏洩しこの結果、ラジオ受信機の音
声や、テレビジョン受像機の音声や映像等を乱してしま
うのであった。However, the ones currently in practical use have a first
As shown in the figure, the lead wire 3 is passed through the through hole 2 drilled in the wall surface 1 with a certain gap, and therefore, there are the following drawbacks.1 This drawback is that high frequency electromagnetic waves , the lead wire 3 becomes an internal conductor, and the wall surface 1 becomes an external conductor. Therefore, high-frequency electromagnetic waves leak from the heating chamber 4 to the outside 5 of the heating chamber through this coaxial path, and as a result, the sound of the radio receiver and This would disrupt the audio and video of the television receiver.
そこで、従来は第２図に示すように貫通孔２部、１
分に深さか ／ ４ ｃｍ （λは高周波発振器から放
射される高周波電磁波の波長の長さ）の電波チョークキ
ャビティ６を設けたり、第３図に示すようにリード線３
およびこのリード線３に接続するヒータ（図示せず）に
金属管７を被せ、この金属管７と壁面を電気的に短絡し
たりしているが、これらについては次のような欠点があ
った。Therefore, conventionally, as shown in Fig. 2, a radio wave choke cavity 6 with a depth of 1/4 cm (λ is the length of the wavelength of the high-frequency electromagnetic wave emitted from the high-frequency oscillator) is provided in two through-holes. Lead wire 3 as shown in Figure 3.
A heater (not shown) connected to this lead wire 3 is covered with a metal tube 7, and the metal tube 7 and the wall surface are electrically short-circuited, but these have the following drawbacks. .
つ１す、第２図に示すものは一定の周波数の高周波電磁
波はこの電波チョークキャビティ６で減衰させることが
できるが、不要輻射によって生じた周波数の高周波電磁
波はこの部分で減衰させることができず、この結果、そ
の高周波電磁波は加熱室外５に漏洩してし１うのであっ
た。First, in the case shown in Figure 2, high-frequency electromagnetic waves of a certain frequency can be attenuated by this radio wave choke cavity 6, but high-frequency electromagnetic waves of a frequency generated by unnecessary radiation cannot be attenuated in this part. As a result, the high frequency electromagnetic waves leak to the outside of the heating chamber 5.
これに対して、第３図に示すものは高周波電磁波の漏洩
は全くないが、この場合にはヒータの熱は絶縁体８と金
属管７を介して加熱室内に伝達され、特に絶縁体８の熱
伝導が悪いので結果としてヒータによる加熱効率が低下
してしまうのであった。On the other hand, in the case shown in FIG. 3, there is no leakage of high-frequency electromagnetic waves at all, but in this case, the heat of the heater is transmitted into the heating chamber via the insulator 8 and the metal tube 7. Since heat conduction is poor, the heating efficiency of the heater is reduced as a result.
そこで本発明はリード線と加熱室の壁面とを電気的に開
放、または短絡する切換手段を貫通孔の近傍に設け、こ
れによって上記従来の欠点を解消しようとするものであ
る。Therefore, the present invention aims to solve the above-mentioned conventional drawbacks by providing switching means near the through hole to electrically open or short-circuit the lead wire and the wall surface of the heating chamber.
以下、本発明の一実施例を添付図面にもとづいて説明す
る。Hereinafter, one embodiment of the present invention will be described based on the accompanying drawings.
第４図に耘いて、９は本体ケースで、この本体ケース９
の内部には加熱室１０が設けられ、さらに加熱室１０の
前面開口部にはドア１１が開閉自在に設けられている。Referring to Figure 4, 9 is the main body case, and this main body case 9
A heating chamber 10 is provided inside the heating chamber 10, and a door 11 is provided at the front opening of the heating chamber 10 so as to be openable and closable.
また、本体ケース９の前面上部には操作パネル１２が装
着され、さらにこの操作パネル１２にはタイマつまみ３
と、調理開始スイッチ１４と、高周波発振器（図示せず
）に通電するボタン１５と、加熱室１０内のヒータ１６
に通電するボタン１７が設けられている。Further, an operation panel 12 is attached to the upper front of the main body case 9, and the operation panel 12 further includes a timer knob 3.
, a cooking start switch 14 , a button 15 that energizes a high-frequency oscillator (not shown), and a heater 16 in the heating chamber 10 .
A button 17 for energizing is provided.
上記ヒータ１６は加熱室１０内の食品、例えば魚１Ｂの
表面に焦げ目を付けるために設けたものであり、とのヒ
ータ１６はリード線１９に接続されている。The heater 16 is provided to brown the surface of the food such as fish 1B in the heating chamber 10, and is connected to a lead wire 19.
渣た、リード線１９は第５図に示すようド加熱室１０の
壁面２０に穿設した貫通孔２１を一定の間隙をおいて貫
通しており、さらにこの貫通孔２１の近傍、具体的には
貫通孔２１の加熱室外２２側には切換手段２３が設けら
れている。As shown in FIG. 5, the lead wire 19 passes through a through hole 21 formed in the wall surface 20 of the heating chamber 10 with a certain gap, and furthermore, in the vicinity of this through hole 21, specifically, A switching means 23 is provided on the outside heating chamber 22 side of the through hole 21.
この切換手段２３は上記リード線１９と加熱室１０の壁
面２０とを電気的に開放、または短絡するために設けた
ものであり、具体的にはリード線１９に沿って摺動する
金属体２４と、この金属体２４の後端に設けられた永久
磁石２５と、この永久磁石２５を吸引する電磁石２６と
、この電磁石２６を保持した樹脂製ツカバー２７と、こ
のカバー２７と永久磁石２５の間に介在させたコイルバ
ネ２８とを備えた電磁開閉器で構成されている。This switching means 23 is provided to electrically open or short-circuit the lead wire 19 and the wall surface 20 of the heating chamber 10. Specifically, the switching means 23 is a metal body 24 that slides along the lead wire 19. A permanent magnet 25 provided at the rear end of this metal body 24, an electromagnet 26 that attracts this permanent magnet 25, a resin cover 27 that holds this electromagnet 26, and a space between this cover 27 and permanent magnet 25. It is composed of an electromagnetic switch equipped with a coil spring 28 interposed between.
そして、上記電磁石２６はボタン１５を押込めば吸引力
が働くようになってむり、したがって、このボタン１５
を押込めば第６図に示すような永久磁石２５がコイルバ
ネ２８の反発力に抗して吸引され、この結果、上記リー
ド線１９と加熱室１０の壁面２０は金属体２４を介して
短絡されることになる。Then, when the button 15 is pressed, the electromagnet 26 becomes attracted to the button 15.
When pushed in, the permanent magnet 25 as shown in FIG. That will happen.
上記構成にち・いて魚１８を焼く場合は先ずボタン１５
を押込んで高周波発振器に通電する体制を整え、次にタ
イマつ１み１３で高周波発振器での加熱時間を設定し
その後調理開始スイッチ１４を押込む。If you want to grill fish 18 using the above configuration, first press button 15.
Set the system to energize the high-frequency oscillator by pressing the button, and then set the heating time with the high-frequency oscillator using the timer knob 13.
After that, the cooking start switch 14 is pressed.
すると、高周波発振器から加熱室１０内に高周波電磁波
が放射され、この高周波電磁波によって魚１８の表面と
内部は均一に誘電加熱される。Then, a high frequency electromagnetic wave is emitted from the high frequency oscillator into the heating chamber 10, and the surface and inside of the fish 18 are dielectrically heated uniformly by this high frequency electromagnetic wave.
筐た、この場合にはボタン１５を押込むので、第６図に
示すようにリード線１９と加熱室１０の壁面２０とは金
属体２４を介して短絡されることになり、この結果、こ
のリード線１９が従来のように内部導体化せず、したが
って高周波電磁波が加熱室外２２に漏洩することはない
。Since the housing, in this case the button 15, is pressed, the lead wire 19 and the wall surface 20 of the heating chamber 10 are short-circuited via the metal body 24, as shown in FIG. The lead wire 19 is not made into an internal conductor as in the conventional case, so that high frequency electromagnetic waves do not leak to the outside of the heating chamber 22.
次に、この魚１８の表面に焦げ目を付ける場合は、ボタ
ン１７を押込んでヒータ１６に通電する体制を整え、次
にタイマつ筐み１３でヒータ１６での加熱時間を設定し
、その後調理開始スイッチ１４を押込む。Next, if you want to brown the surface of the fish 18, press the button 17 to set up a system to energize the heater 16, then use the timer box 13 to set the heating time for the heater 16, and then start cooking. Push switch 14.
すると、ヒータ１６が発熱することになり、この熱によ
って魚１８の表面には焦げ目が付けられるのである。Then, the heater 16 generates heat, and the surface of the fish 18 is browned by this heat.
また、この場合にはボタン１７を押込んでボタ・ン１５
の押込みを解除するのでリード線１９と加熱室１０の壁
面２０は第５図に示すように電気的に開放された状態に
なり、したがって、リード線１９から加熱室１０の壁面
２０に電流が漏れることはない。In this case, press button 17 and press button 15.
Since the push-in is released, the lead wire 19 and the wall surface 20 of the heating chamber 10 become electrically open as shown in FIG. 5, so that current leaks from the lead wire 19 to the wall surface 20 of the heating chamber 10. Never.
第７図は本発明の他の実施例を示し、この実施例ではリ
ード線１９と貫通孔２１の間隙に双方向性３端子サイリ
スタで構成された切換手段２９を介在させたものである
。FIG. 7 shows another embodiment of the present invention, in which a switching means 29 constituted by a bidirectional three-terminal thyristor is interposed in the gap between the lead wire 19 and the through hole 21.
そして、上記ボタン１５を押込めばそのゲー） （Ｇ）
にゲート電流が供給されるようになっており、この切換
手段２９が導通状態になるのは、ゲート電流が供給され
た場合と、高周波電磁波によってリード線１９と加熱室
１０の壁面２０との間に数百ボルトの交番電圧が誘起さ
れ、この結果、この切換手段２９がブレークオバーした
場合である。Then press button 15 above to play that game) (G)
A gate current is supplied to the switching means 29, and the switching means 29 becomes conductive when the gate current is supplied and between the lead wire 19 and the wall surface 20 of the heating chamber 10 due to high frequency electromagnetic waves. This is a case where an alternating voltage of several hundred volts is induced, and as a result, this switching means 29 breaks over.
そして、これらの場合には結果的にリード線１９と加熱
室１０の壁面２図とが電気的に短絡され、この結果、上
記実施例と同様このリード線１９が従来のように内部導
体化せず、したがって高周波電磁波力功日熱室外２２に
漏洩することはない。In these cases, the lead wire 19 and the wall surface 2 of the heating chamber 10 are electrically short-circuited, and as a result, the lead wire 19 is not made into an internal conductor as in the conventional case, as in the above embodiment. Therefore, high-frequency electromagnetic wave power does not leak to the outside of the thermal room 22.
なお、この切換手段２９の特性図は第８図に示すように
なっており、この図の実線はゲート電流が供給されない
場合の特性であり、また破線はゲート電流が供給された
場合の特性である。The characteristic diagram of this switching means 29 is shown in FIG. 8. The solid line in this figure is the characteristic when no gate current is supplied, and the broken line is the characteristic when gate current is supplied. be.
そして、この特性から明らかなようにゲート電流が供給
されない場合のブレークオーバ電圧は、２５０Ｍになっ
て釦り、したがって魚１８に焦げ目を付けている場合、
つ筐りヒータ１６に商用電源（１００，／’ΣＶ）を供
給している時にはこの切換手段２９は非導通状態になる
。As is clear from this characteristic, the breakover voltage when no gate current is supplied is 250M, so when the fish 18 is browned,
When commercial power (100,/'ΣV) is being supplied to the housing heater 16, this switching means 29 is in a non-conductive state.
この結果、リード線１９と加熱室１０の壁面２０は上記
実施例と同様電気的に開放された状態になり、したがっ
てリード線１９から加熱室１０の壁面２０に電流が漏れ
ることはない。As a result, the lead wire 19 and the wall surface 20 of the heating chamber 10 are electrically opened as in the above embodiment, so that no current leaks from the lead wire 19 to the wall surface 20 of the heating chamber 10.
以上のような本発明の高周波加熱装置は加熱室のリード
線が貫通した貫通孔部分において、リード線と加熱室の
壁面とを電気的に開放、または短絡する切換手段を設け
たものである。The high-frequency heating device of the present invention as described above is provided with a switching means for electrically opening or short-circuiting the lead wire and the wall surface of the heating chamber in the through hole portion through which the lead wire of the heating chamber passes.
したがって、加熱室内に高周波電磁波を供給するに際し
て上記切換手段で加熱室とリード線を電気的に短絡すれ
ば 基本波はもちろん高調波も加熱室壁に全て流せ、決
して加熱室内から高周波電磁波が漏洩することはなく、
この結果例えばこの高−周波電磁波によってラジオ受信
機の音声や、テレビジョン受像機の音声や映像等を乱す
ことがない。Therefore, when supplying high-frequency electromagnetic waves into the heating chamber, if the heating chamber and the lead wire are electrically short-circuited using the switching means described above, not only the fundamental wave but also the harmonic waves can all flow to the heating chamber wall, and high-frequency electromagnetic waves will never leak from the heating chamber. Without a doubt,
As a result, for example, the high-frequency electromagnetic waves do not disturb the audio of a radio receiver or the audio or video of a television receiver.
また、上記高周波電磁液洩れを防止するためにヒータに
金属体を被せるもつではないので、ヒータの熱は直接加
熱室に伝達され、その加熱効率は高く、この結果、魚等
の表面にこんがりとした焦げ目をすばやく付けることが
できるのである。In addition, since the heater is not covered with a metal body to prevent leakage of the high-frequency electromagnetic liquid mentioned above, the heat of the heater is directly transmitted to the heating chamber, and its heating efficiency is high.As a result, the surface of the fish etc. is browned. This allows for quick browning.
２2
第１図〜第３図は従来の高周波加熱装置の要部断面図、
第４図は本発明の一実施例にかかる高周波加熱装置の斜
視図、第５図１・第６図は同装置の要部拡大断面図、第
７図は本発明の他の実施例にかかる高周波加熱装置の要
部断面図、第８図は同装置の特性図である。
１０・・・・・・加熱室、１９・・・・・・リード線、
２１・・・・・・貫通孔、２３，２９・・・・・・切換
手段、２４・・・・・金属体。Figures 1 to 3 are cross-sectional views of the main parts of a conventional high-frequency heating device.
FIG. 4 is a perspective view of a high-frequency heating device according to an embodiment of the present invention, FIGS. 5, 1 and 6 are enlarged cross-sectional views of essential parts of the same device, and FIG. FIG. 8 is a sectional view of a main part of the high-frequency heating device, and a characteristic diagram of the device. 10... Heating chamber, 19... Lead wire,
21...Through hole, 23, 29...Switching means, 24...Metal body.
Claims (1)
の間隙をおいてリード線を貫通させ、加熱室内でこのリ
ード線にヒータを電気接続し、かつ上記貫通孔部分にお
いて、この貫通孔を覆って、リード線と加熱室の壁面と
を電気的に短絡する短絡手段を配設したことを特徴とす
る高周波加熱装置。 ２ 切換手段はリード線に沿って摺動する金属体を備え
た電磁開閉器で構成した特許請求の範囲第１項に記載の
高周波加熱装置。 ３ 切換手段は、リード線と貫通孔との間隙に介在され
た双方向性３端子サイリスタで構成した特許請求の範囲
第１項に記載の高周波加熱装置。[Scope of Claims] 1. A through hole is formed in the wall surface of the heating chamber, a lead wire is passed through the through hole with a certain gap, and a heater is electrically connected to the lead wire within the heating chamber, and A high-frequency heating device characterized in that a short-circuiting means is provided in the through-hole portion to cover the through-hole and electrically short-circuit the lead wire and the wall surface of the heating chamber. 2. The high-frequency heating device according to claim 1, wherein the switching means is an electromagnetic switch equipped with a metal body that slides along a lead wire. 3. The high-frequency heating device according to claim 1, wherein the switching means is a bidirectional three-terminal thyristor interposed in the gap between the lead wire and the through hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP51110250A JPS5826628B2 (en) | 1976-09-13 | 1976-09-13 | High frequency heating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP51110250A JPS5826628B2 (en) | 1976-09-13 | 1976-09-13 | High frequency heating device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5336052A JPS5336052A (en) | 1978-04-04 |
| JPS5826628B2 true JPS5826628B2 (en) | 1983-06-03 |
Family
ID=14530908
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP51110250A Expired JPS5826628B2 (en) | 1976-09-13 | 1976-09-13 | High frequency heating device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5826628B2 (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5055944A (en) * | 1973-09-20 | 1975-05-16 |
-
1976
- 1976-09-13 JP JP51110250A patent/JPS5826628B2/en not_active Expired
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5055944A (en) * | 1973-09-20 | 1975-05-16 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5336052A (en) | 1978-04-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US2956143A (en) | Microwave ovens | |
| US2500676A (en) | Heating apparatus | |
| US3806837A (en) | Plug-in high-power waveguide junction circulator | |
| US5897808A (en) | Microwave oven door with microwave leakage seal | |
| JPS5826628B2 (en) | High frequency heating device | |
| US4689460A (en) | Absorber device for microwave leakage | |
| US3536878A (en) | Electronic heating apparatus including microwave coupling structure and filters therefor | |
| JPS5829591B2 (en) | High frequency heating device | |
| JPS5839284Y2 (en) | High frequency heating device | |
| JPS60562Y2 (en) | High frequency heating device | |
| JPS5924762B2 (en) | High frequency heating device | |
| JPS6336635Y2 (en) | ||
| JPS645433B2 (en) | ||
| JPS58220386A (en) | High frequency heater | |
| JPS60561Y2 (en) | High frequency heating device | |
| JPS58194292A (en) | High frequency heating device with heater | |
| JPS5986831A (en) | Heating cooker | |
| JPH02247420A (en) | Micro-wave open heating and cooking appliance with heater | |
| RU97116331A (en) | SUPER FREQUENCY FURNACE | |
| JPS5834323Y2 (en) | High frequency heating device with heater | |
| JPS6021913Y2 (en) | High frequency heating device | |
| JPS6147095A (en) | High frequency thawing device | |
| JPS6021474B2 (en) | High frequency heating device | |
| JPS5931593A (en) | High frequency heater | |
| JPS5983392A (en) | High frequency heater |