JPH04209493A - Microwave heating device - Google Patents
Microwave heating deviceInfo
- Publication number
- JPH04209493A JPH04209493A JP40059990A JP40059990A JPH04209493A JP H04209493 A JPH04209493 A JP H04209493A JP 40059990 A JP40059990 A JP 40059990A JP 40059990 A JP40059990 A JP 40059990A JP H04209493 A JPH04209493 A JP H04209493A
- Authority
- JP
- Japan
- Prior art keywords
- wall
- heating chamber
- microwave
- feed port
- power feed
- 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.)
- Pending
Links
- 238000010438 heat treatment Methods 0.000 title claims abstract description 39
- 230000002093 peripheral effect Effects 0.000 claims abstract description 14
- 238000010411 cooking Methods 0.000 abstract description 6
- 210000004907 gland Anatomy 0.000 abstract 4
- 230000005540 biological transmission Effects 0.000 abstract 2
- 238000010276 construction Methods 0.000 abstract 1
- 230000004927 fusion Effects 0.000 abstract 1
- 230000006866 deterioration Effects 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Constitution Of High-Frequency Heating (AREA)
- Electric Ovens (AREA)
Abstract
Description
［０００１］ [0001]
【産業上の利用分野】本発明は、マイクロ波を導波部で
導き給電口から加熱室内に供給する電子レンジ等のマイ
クロ波加熱装置に関する。
［０００２］BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a microwave heating device such as a microwave oven, in which microwaves are guided through a waveguide and supplied into a heating chamber from a power supply port. [0002]
【従来の技術】図４は、マイクロ波発生手段であるマグ
ネトロン２０から発生され導波部２１て導かれたマイク
ロ波を、給電口２２から加熱室２３内に供給する従来の
電子レンジを示し、加熱室２３と導波部２１とは、各々
を構成する壁２４．２５を介して互いに配置されている
。この場合、加熱室２３と導波部２１との間に２つの壁
２４．２５が存在するため、電子レンジのコスト高を招
来している。
［０００３１図５及び図６は、これに鑑み、加熱室２３
と導波部２１とを１つの壁２６を挟んで配置した構造と
している（特開昭５７−１０３２９２号公報参照）。
［０００４］ところが、このような構造においては、上
記壁２６は、加熱室２３内に臨む面及び導波部２１に臨
む面の双方を有し、これら両面にマイクロ波による壁面
電流が流れ、他の壁面より発熱量が多く温度が上昇する
。また、上記壁２６の、給電口周縁の端部２７は、図５
の矢印の如く電界が集中し、これによっても温度上昇す
る。しかも、無負荷運転時には、これが顕著となる。
この場合、給電口を塞ぐべく設けるマイクロ波透過性カ
バーが溶融・変形する恐れがある。
［０００５］また、図５及び図６においては、導波部２
１内に突出しているマグネトロン２０のアンテナ２８と
上記壁２６との間で放電が起こらないように、上記壁２
６のアンテナ２８に対向する部分に、加熱室２３内に突
出するアンテナ対向座押し部２９を形成しているが、こ
の座押し部２９の形成に基づいて上記壁２６の各部に図
６の矢印の如く歪み力が発生し、この歪み力により給電
口周縁の強度的に弱い上記端部２７が不所望に変形し、
マイクロ波的性能が変化し調理性能が劣化する。尚、他
の給電口周縁部は１．導波部２１を構成する壁体３０の
溶接固定（図６の×位置）にて補強されており、変形し
ない。
［０００６］2. Description of the Related Art FIG. 4 shows a conventional microwave oven in which microwaves generated by a magnetron 20, which is a microwave generating means, and guided by a waveguide 21 are supplied into a heating chamber 23 from a power supply port 22. The heating chamber 23 and the waveguide section 21 are arranged with respect to each other via walls 24 and 25 that constitute each of them. In this case, two walls 24 and 25 are present between the heating chamber 23 and the waveguide section 21, which increases the cost of the microwave oven. [00031 In view of this, FIGS. 5 and 6 show the heating chamber 23
and the waveguide section 21 are arranged with one wall 26 in between (see Japanese Patent Laid-Open No. 103292/1983). [0004] However, in such a structure, the wall 26 has both a surface facing into the heating chamber 23 and a surface facing the waveguide section 21, and a wall current caused by microwaves flows on both of these surfaces, and other surfaces It generates more heat than the wall and the temperature rises. Further, the edge portion 27 of the wall 26 around the power supply port is shown in FIG.
The electric field concentrates as shown by the arrow, and this also causes the temperature to rise. Moreover, this becomes noticeable during no-load operation. In this case, there is a risk that the microwave transparent cover provided to cover the power supply port may melt and deform. [0005] Furthermore, in FIGS. 5 and 6, the waveguide section 2
In order to prevent discharge between the antenna 28 of the magnetron 20 protruding into the wall 26 and the wall 26,
An antenna facing seat push part 29 that protrudes into the heating chamber 23 is formed in a portion facing the antenna 28 of 6. Based on the formation of this seat push part 29, each part of the wall 26 is shaped like the arrow shown in FIG. A distortion force is generated as shown in FIG.
Microwave performance changes and cooking performance deteriorates. Note that the other peripheral edges of the power feed port are 1. The wall body 30 constituting the waveguide section 21 is reinforced by welding and fixing (X position in FIG. 6), and does not deform. [0006]
【発明が解決しようとする課題】本発明は、加熱室と導
波部とを壁１つを挟んで配置するとともに、この壁の、
マイクロ波発生手段のアンテナに対向する部分にアンテ
ナ対向座押し部を形成した構造において、給電口を塞ぐ
マイクロ波透過性カバーが溶融・変形するのを抑制し、
且つ調理性能が劣化するのを抑制するマイクロ波加熱装
置を提供しようとするものである。
［０００７１SUMMARY OF THE INVENTION According to the present invention, the heating chamber and the waveguide section are arranged with one wall in between, and the
In a structure in which an antenna-facing seat push part is formed in a portion of the microwave generating means that faces the antenna, melting and deformation of the microwave-transparent cover that blocks the feed port is suppressed,
Moreover, it is an object of the present invention to provide a microwave heating device that suppresses deterioration of cooking performance. [00071
【課題を解決するための手段］本発明のマイクロ波加熱
装置は、加熱室と、マイクロ波発生手段と、上記加熱室
と壁１つを挟んで形成され、上記マイクロ波発生手段が
発生したマイクロ波を導く導波部と、上記壁の、上記マ
イクロ波発生手段のアンテナに対向する部分に形成され
、上記加熱室内に突出するアンテナ対向座押し部と、上
記壁に形成され、上記導波部で導かれたマイクロ波を上
記加熱室内に供給せしめる給電口と、この給電口を塞ぐ
マイクロ波透過性カバーと、上記壁の給電口周縁部分に
形成された給電口周縁座押し部とからなる。
［０００８］
【作用】加熱室と導波部とを壁１つを挟んで配置した構
造においては、上記壁が温度上昇する。しかるに、上記
壁の給電口周縁部分は、この部分に形成した給電口周縁
座押し部の存在により、給電口を塞ぐマイクロ波透過性
カバーと接触せず、従って、マイクロ波透過性カバーは
溶融・変形しにくい。
［０００９］更に、上記壁の、マイクロ波発生手段のア
ンテナに対向する部分にアンテナ対向座押し部を形成し
た構造においては、上記壁に歪み力が発生するが、この
場合上記壁の給電口周縁端部は上記給電口周縁座押し部
にて補強されていて変形せず、従って給電口の形状が変
形しないから調理性能は安定している。
［００１０１[Means for Solving the Problems] The microwave heating device of the present invention includes a heating chamber, a microwave generating means, and a wall sandwiching the heating chamber, and a microwave heating device which generates a microwave generated by the microwave generating means. a waveguide portion for guiding waves; an antenna-facing seat push portion formed on a portion of the wall facing the antenna of the microwave generating means and protruding into the heating chamber; and a waveguide portion formed on the wall and protruding into the heating chamber. The heating chamber is made up of a power supply port for supplying microwaves guided into the heating chamber, a microwave-transparent cover that closes the power supply port, and a power supply port peripheral seat portion formed on the wall around the power supply port. [0008] [Operation] In the structure in which the heating chamber and the waveguide section are placed with one wall in between, the temperature of the wall increases. However, the portion of the wall around the power supply port does not come into contact with the microwave-transparent cover that blocks the power supply port due to the presence of the power-feedport peripheral seat portion formed in this portion, and therefore the microwave-transparent cover does not melt or melt. Not easy to deform. [0009]Furthermore, in a structure in which an antenna-facing seat push part is formed in a portion of the wall that faces the antenna of the microwave generating means, a strain force is generated in the wall, but in this case, the periphery of the feed port of the wall The end portion is reinforced by the power feed port peripheral seat push portion and does not deform, and therefore the shape of the power feed port is not deformed, so the cooking performance is stable. [00101
【実施例１図１乃至図３は本発明実施例の電子レンジを
示す。食品を収納する加熱室１が設けられており、この
加熱室にはマイクロ波を発生するマグネトロン２が導波
部３を介して連結されている。この場合、上記導波部３
は壁体４等で構成されていて上記加熱室１と１つの壁５
を挟んでおり、この壁５には給電口６が形成されている
。従って、上記マグネトロン２から発生したマイクロ波
は上記導波部３で導かれ上記給電口６から加熱室１内へ
供給され、加熱室内で食品のマイクロ波加熱が実行され
る。
［００１１３そして、上記壁５の給電ロ６周縁部分には
、導波部３側に突出した給電口周縁座押し部７が形成さ
れており、また、給電口６はマイクロ波透過性カバ８で
塞がれている。
［００１２］このような構成において、加熱室１と導波
部３との間には１つの壁５があるだけであり、電子レン
ジのコスト高が抑制されているが、上記壁５は両面にマ
イクロ波による壁面電流が流れ他の面より発熱量が多く
温度上昇が激しい。この場合、従来のままであるとカバ
ー８が溶融・変形してしまう。しかるに、上述のように
給電口周縁座押し部７が存在していることにより、上記
壁５の給電口周縁部分がカバー８と接触せず、カバー８
は溶融・変形しにくい。
［００１３１更に、導波部３内に突出しているマグネト
ロン２のアンテナ９と上記壁５との間で放電が起こらな
いように、上記壁５のアンテナ９に対向する部分に、加
熱室１内に突出するアンテナ対向座押し部１０を形成し
ているが、この座押し部１０により上記壁５に歪み力が
発生し、この歪み力により給電口周縁の強度的に弱い部
分が不所望に変形しようとする。しかるに、この強度的
に弱い部分は上記給電口周縁座押し部７により補強され
ており、従って、給電口６の形状が変化せず、調理性能
は安定している。
［００１４］
【発明の効果】本発明によれば、加熱室と導波部とを壁
１つを挟んで配置するとともに、この壁の、マイクロ波
発生手段のアンテナに対向する部分にアンテナ対向座押
し部を形成した構造において、マイクロ波透過性カバー
の溶融・変形及び調理性能の劣化を抑制できる、実用的
なマイクロ波加熱装置を提供することができる。[Embodiment 1] Figures 1 to 3 show a microwave oven according to an embodiment of the present invention. A heating chamber 1 for storing food is provided, and a magnetron 2 that generates microwaves is connected to this heating chamber via a waveguide section 3. In this case, the waveguide section 3
is composed of a wall 4, etc., and the heating chamber 1 and one wall 5
A power supply port 6 is formed in this wall 5. Therefore, the microwaves generated from the magnetron 2 are guided by the waveguide section 3 and supplied into the heating chamber 1 from the power supply port 6, and microwave heating of the food is performed within the heating chamber. [00113] A power feed port peripheral seat push portion 7 that protrudes toward the waveguide portion 3 is formed on the peripheral edge of the power feed port 6 of the wall 5, and the power feed port 6 is covered with a microwave transparent cover 8. It's blocked. [0012] In such a configuration, there is only one wall 5 between the heating chamber 1 and the waveguide section 3, which suppresses the cost increase of the microwave oven, but the wall 5 has walls on both sides. Wall current due to microwaves flows, generating more heat than other surfaces and causing a rapid temperature rise. In this case, if the conventional method is used, the cover 8 will melt and deform. However, as described above, due to the presence of the power feed port peripheral seat push portion 7, the power feed port peripheral portion of the wall 5 does not come into contact with the cover 8, and the cover 8
is not easily melted or deformed. [00131 Furthermore, in order to prevent discharge between the antenna 9 of the magnetron 2 protruding into the waveguide section 3 and the wall 5, a portion of the wall 5 facing the antenna 9 is placed inside the heating chamber 1. A protruding antenna-facing seating part 10 is formed, but this seating part 10 generates a distortion force on the wall 5, and this distortion force may undesirably deform the weak part around the feed port. shall be. However, this weak portion is reinforced by the power feed port peripheral seat push portion 7, so the shape of the power feed port 6 does not change and the cooking performance is stable. [0014] According to the present invention, the heating chamber and the waveguide section are arranged with one wall in between, and the antenna facing seat is provided on the part of this wall that faces the antenna of the microwave generating means. In the structure in which the push portion is formed, it is possible to provide a practical microwave heating device that can suppress melting and deformation of the microwave transparent cover and deterioration of cooking performance.
【図１】本発明実施例の電子レンジの要部断面図である
。FIG. 1 is a sectional view of essential parts of a microwave oven according to an embodiment of the present invention.
【図２】本発明実施例の電子レンジの斜視図である。FIG. 2 is a perspective view of a microwave oven according to an embodiment of the present invention.
【図３】マイクロ波透過性カバーを取外した状態で図２
を矢印Ａ方向から見た断面図である。[Figure 3] Figure 2 with the microwave transparent cover removed
FIG. 2 is a cross-sectional view of FIG.
【図４】従来例の電子レンジの断面図である。FIG. 4 is a sectional view of a conventional microwave oven.
【図５】他の従来例の電子レンジの要部断面図である。FIG. 5 is a sectional view of a main part of another conventional microwave oven.
【図６】図５のＢ−Ｂ線断面図である。6 is a sectional view taken along line BB in FIG. 5. FIG.
１ 加熱室 ２ マグネトロン ３ 導波部 ５ １つの壁 ６ 給電口 ア 給電口周縁座押し部 ８ マイクロ波透過性カバー ９ アンテナ １０ アンテナ対向座押し部 1 Heating chamber 2 Magnetron 3 Waveguide section 5 One wall 6 Power supply port A Power supply port periphery seat push part 8 Microwave transparent cover 9 Antenna 10 Antenna opposing seat push part
【図３】[Figure 3]
Claims (1)
熱室と壁１つを挟んで形成され、上記マイクロ波発生手
段が発生したマイクロ波を導く導波部と、上記壁の、上
記マイクロ波発生手段のアンテナに対向する部分に形成
され、上記加熱室内に突出するアンテナ対向座押し部と
、上記壁に形成され、上記導波部で導かれたマイクロ波
を上記加熱室内に供給せしめる給電口と、この給電口を
塞ぐマイクロ波透過性カバーと、上記壁の給電口周縁部
分に形成された給電口周縁座押し部とからなるマイクロ
波加熱装置。Claims: 1. A heating chamber, a microwave generating means, a waveguide portion formed between the heating chamber and a wall and guiding the microwaves generated by the microwave generating means, an antenna-facing seat push part formed on a portion of the microwave generating means facing the antenna and protruding into the heating chamber; and an antenna-facing seat push part formed on the wall for supplying microwaves guided by the waveguide into the heating chamber. A microwave heating device comprising a power feeding port, a microwave transparent cover for closing the power feeding port, and a power feeding port peripheral seat portion formed at a peripheral portion of the power feeding port on the wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP40059990A JPH04209493A (en) | 1990-12-06 | 1990-12-06 | Microwave heating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP40059990A JPH04209493A (en) | 1990-12-06 | 1990-12-06 | Microwave heating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH04209493A true JPH04209493A (en) | 1992-07-30 |
Family
ID=18510495
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP40059990A Pending JPH04209493A (en) | 1990-12-06 | 1990-12-06 | Microwave heating device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH04209493A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013014941A1 (en) | 2011-07-26 | 2013-01-31 | パナソニック株式会社 | High-frequency cooker |
-
1990
- 1990-12-06 JP JP40059990A patent/JPH04209493A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013014941A1 (en) | 2011-07-26 | 2013-01-31 | パナソニック株式会社 | High-frequency cooker |
| JP2013024535A (en) * | 2011-07-26 | 2013-02-04 | Panasonic Corp | High-frequency cooker |
| CN103703319A (en) * | 2011-07-26 | 2014-04-02 | 松下电器产业株式会社 | High-frequency cooker |
| US9635716B2 (en) | 2011-07-26 | 2017-04-25 | Panasonic Intellectual Property Management Co., Ltd. | High-frequency cooker |
| CN103703319B (en) * | 2011-07-26 | 2017-05-31 | 松下电器产业株式会社 | High-frequency cooking device |
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