JPS60165088A - High frequency heater - Google Patents
High frequency heaterInfo
- Publication number
- JPS60165088A JPS60165088A JP2211584A JP2211584A JPS60165088A JP S60165088 A JPS60165088 A JP S60165088A JP 2211584 A JP2211584 A JP 2211584A JP 2211584 A JP2211584 A JP 2211584A JP S60165088 A JPS60165088 A JP S60165088A
- Authority
- JP
- Japan
- Prior art keywords
- groove
- radio wave
- door
- periodic structure
- high frequency
- 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
Landscapes
- Constitution Of High-Frequency Heating (AREA)
- Electric Ovens (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
産業上の利用分野
本発明は、高周波加熱装置の電波シールに関するもので
あり、安全性を高め、より経済的に構成することを目的
としている。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a radio wave seal for a high frequency heating device, and aims to improve safety and provide a more economical structure.
従来例の構成とその問題点
従来の電波シール構成については、チョーク減衰溝と電
波吸収体を用いたもの、捷だは第１図に示すようにチョ
ーク減衰溝１と周期構造体２を併用したもの等が用いら
れている。後者の電波シール構成は、周期構造体２の作
用によって、電波的短絡間が形成されるためドア内板３
と加熱室開口部壁面４との、面接触が不完全あるいは、
間隔が大きくても遮断効果を有し、電波シール性能を維
持することができる。Conventional configurations and their problems Conventional radio wave seal configurations use a choke attenuation groove and a radio wave absorber, while others use a combination of a choke attenuation groove 1 and a periodic structure 2 as shown in Figure 1. things etc. are used. In the latter radio wave seal configuration, a radio wave short circuit is formed by the action of the periodic structure 2, so the door inner plate 3
The surface contact between the heating chamber opening wall surface 4 and the heating chamber opening wall surface 4 is incomplete, or
Even if the distance is large, it has a blocking effect and can maintain radio wave sealing performance.
しかし、前記周期構造体２をドアー外板５に固定する方
法として、スポット溶接或はカシメなどの方法を用いて
いた。その為、加工上の問題として溶接外れや、カシメ
外れ、あるいは周期構造体の固定位置の寸法精度等の問
題があった。However, as a method for fixing the periodic structure 2 to the door outer panel 5, methods such as spot welding or caulking have been used. As a result, problems in processing include welding coming off, caulking coming off, and dimensional accuracy of the fixed position of the periodic structure.
発明の目的
本発明は上記の従来の欠点を解消するもので安全性を高
め、より経済的に構成することを目的とする。OBJECTS OF THE INVENTION It is an object of the present invention to overcome the above-mentioned drawbacks of the prior art, and to improve safety and provide a more economical construction.
発明の構成
上記目的を達するため、本発明は加熱室の前期開口部に
ドアを開閉自在に設け、加熱室の開口部周縁およびこれ
に対向するドアに溝開口部と短絡終端部を持つ第１の溝
と第２の溝とを平行に設は溝の長手方向に周期的に切シ
込み部を有する導体板によって、上記第１の溝と第２の
溝を分割する構成とした電波シール構造において、前記
溝を金属板によって構成し、前記の周期的に切り込み部
を有する導体板を、溝を構成する金属板の一部を切シ起
すことによって構成し溝と一体成形とした構成であわ、
電波シール性能にすぐれている。Structure of the Invention In order to achieve the above-mentioned object, the present invention provides a door that can be freely opened and closed at the opening of the heating chamber, and a first groove opening and a short-circuit termination on the periphery of the opening of the heating chamber and the door opposite thereto. A radio wave seal structure in which the first groove and the second groove are divided by a conductive plate having grooves arranged in parallel and periodically cut in the longitudinal direction of the groove. In the above, the groove is formed of a metal plate, and the conductor plate having the periodic notches is formed by cutting and raising a part of the metal plate forming the groove, and is integrally formed with the groove. ,
Excellent radio wave seal performance.
実施例の説明
以下、本発明の一実施例について第２図、第３図に基づ
いて説明する。DESCRIPTION OF EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. 2 and 3.
第２図は高周波加熱装置の電波シール構成の部分断面図
により、本発明の一実施例を示したものである。第３図
は同部分を一部切欠きの斜視図で示したものである。FIG. 2 shows an embodiment of the present invention through a partial sectional view of a radio wave seal structure of a high frequency heating device. FIG. 3 is a partially cutaway perspective view of the same portion.
電波減衰溝１を構成するドアー外板５の一部（Ａ部）を
等間隔に切シ起し、櫛形の周期構造体２を構成する。前
記周期構造体２によって、溝開口部と短絡終端部を持つ
第１の溝Ｚ１と第２の溝Ｚ２を平行に設ける構造になっ
ている。A part (portion A) of the door outer panel 5 forming the radio wave attenuation groove 1 is cut and raised at equal intervals to form a comb-shaped periodic structure 2. The periodic structure 2 has a structure in which a first groove Z1 and a second groove Z2 having a groove opening and a short-circuit end are provided in parallel.
以下、上記構成における動作について説明する。The operation of the above configuration will be explained below.
加熱室７内の電波はドア閉鎖時においては、開口部壁間
４とドア内板３との面接触により、外部に対する電波漏
洩を減少させる。ここで面接触が完全でなかったシ、あ
るいは間隔が大きいような状態では電波を完全に遮断で
きずに、電波は次の電波減衰溝１に進むことになるが電
波減衰溝１の中に切シ起して構成された、周期構造体２
によって仕切られたチョーク減衰溝となる溝Ｚ１によっ
て減衰することができる。第３図に示すように、電波減
衰溝１に向う電波を２方向成ｉ（Ｘ、Ｚ）の合成方向に
電波が進むと考えると、周期構造体２によりＸ方向の電
波を規制し、チョーク減衰溝はＺ方向の電波を規制する
ことになり、電波減衰溝１の減衰効果を極めて高くする
ことができる。したがって、周期構造体２によって仕切
られた外側の溝Ｚ２に周期構造体２を切シ起すことによ
って生じた切シ欠き穴（Ｂ部）からは、電波はほとんど
漏れることはない。When the door is closed, the radio waves inside the heating chamber 7 are brought into surface contact between the opening wall 4 and the door inner plate 3, thereby reducing leakage of radio waves to the outside. If the surface contact is not perfect or if the gap is large, the radio waves cannot be completely blocked and the radio waves will proceed to the next radio wave attenuation groove 1. Periodic structure 2 constructed by
Attenuation can be achieved by the groove Z1, which is a choke damping groove partitioned by. As shown in Fig. 3, if we consider that the radio waves toward the radio wave attenuation groove 1 proceed in the composite direction of two directions i (X, Z), the periodic structure 2 regulates the radio waves in the X direction, and the choke The attenuation groove restricts radio waves in the Z direction, and the attenuation effect of the radio wave attenuation groove 1 can be made extremely high. Therefore, almost no radio waves leak from the notched hole (portion B) created by cutting and raising the periodic structure 2 in the outer groove Z2 partitioned by the periodic structure 2.
発明の効果
以上のように本発明によれば次の効果を得ることができ
る。Effects of the Invention As described above, according to the present invention, the following effects can be obtained.
（１）周期構造体の固定に溶接やカシメが不要の為これ
らの外れ及び周期構造体の固定位置の寸法精度等による
電波シール性能を疎害する要素がなくなる。(1) Since no welding or caulking is required to fix the periodic structure, there are no factors that impair the radio wave sealing performance due to their coming off and the dimensional accuracy of the fixed position of the periodic structure.
（２）従来のドア構造に比べ簡素化している為、量産性
も良く経済的である。(2) Since the door structure is simpler than the conventional door structure, it is easy to mass produce and is economical.
９）複合部品が少くなる為、ドアの軽思化が計れ、使い
勝手が良くなる。9) Since there are fewer composite parts, the door can be made lighter and easier to use.
第１図（ａ）は従来の電波シール構成の一部断面図、第
１図（ｂ）は同部分の一部切きによる要部斜視図、第２
図は本発明の一実施例である電波シール構成の一部断面
図、第３図は同部分の一部欠きによる要部斜視図である
。
１・・・・・電波減衰溝、２・・・・・・周期構造体、
３・旧・ドア内板、４・・・・・開口部壁面、５・・・
・・・ドア外板１．６・°・・°・プラヌチックヵバー
、７・・・・・加熱室、８・・・・・溶接又はカシメ。Fig. 1(a) is a partial cross-sectional view of a conventional radio wave seal configuration, Fig. 1(b) is a perspective view of the main part of the same part, and
The figure is a partial sectional view of a radio wave seal structure according to an embodiment of the present invention, and FIG. 3 is a perspective view of the main part with a portion of the same part cut away. 1... Radio wave attenuation groove, 2... Periodic structure,
3. Old door inner plate, 4..Opening wall surface, 5..
...Door outer plate 1.6°...°Planutic cover, 7...Heating chamber, 8...Welding or caulking.
Claims (1)
本体とドアとが対向する部分の少なくとも一方に、溝開
口部と短絡終端部を持つ第１の溝と第２の溝とを平行に
設け、溝の長手方向に周期的に切シ込み部を有する導体
板によって上記第１の溝と第２の溝を分割する構成とし
前記溝を金属板によって構成し、前記周期的に切り込み
部を有する導体板を、前記溝を構成する金属板の一部を
切り起すことによって構成し前記溝と一体成形とした高
周波加熱装置。A door covering the heating chamber opening of the main body is provided to be openable and closable, and a first groove and a second groove having a groove opening and a short-circuit end are provided in parallel in at least one of the parts where the main body and the door face each other. The first groove and the second groove are divided by a conductive plate having notched portions periodically in the longitudinal direction of the groove, and the groove is formed of a metal plate, and the notched portions are periodically cut in the longitudinal direction of the groove. A high-frequency heating device in which a conductor plate having a conductor plate is formed by cutting and raising a part of a metal plate constituting the groove, and is integrally molded with the groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2211584A JPS60165088A (en) | 1984-02-08 | 1984-02-08 | High frequency heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2211584A JPS60165088A (en) | 1984-02-08 | 1984-02-08 | High frequency heater |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60165088A true JPS60165088A (en) | 1985-08-28 |
| JPS6359238B2 JPS6359238B2 (en) | 1988-11-18 |
Family
ID=12073882
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2211584A Granted JPS60165088A (en) | 1984-02-08 | 1984-02-08 | High frequency heater |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60165088A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003046289A (en) * | 2001-08-02 | 2003-02-14 | Matsushita Electric Ind Co Ltd | Electromagnetic wave shielding device and electronic oven |
| JP2017009182A (en) * | 2015-06-22 | 2017-01-12 | 大阪瓦斯株式会社 | Heating cooker |
-
1984
- 1984-02-08 JP JP2211584A patent/JPS60165088A/en active Granted
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003046289A (en) * | 2001-08-02 | 2003-02-14 | Matsushita Electric Ind Co Ltd | Electromagnetic wave shielding device and electronic oven |
| JP2017009182A (en) * | 2015-06-22 | 2017-01-12 | 大阪瓦斯株式会社 | Heating cooker |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6359238B2 (en) | 1988-11-18 |
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