JPS5934076Y2 - Radio wave leakage prevention device for high frequency heating equipment - Google Patents
Radio wave leakage prevention device for high frequency heating equipmentInfo
- Publication number
- JPS5934076Y2 JPS5934076Y2 JP11015778U JP11015778U JPS5934076Y2 JP S5934076 Y2 JPS5934076 Y2 JP S5934076Y2 JP 11015778 U JP11015778 U JP 11015778U JP 11015778 U JP11015778 U JP 11015778U JP S5934076 Y2 JPS5934076 Y2 JP S5934076Y2
- Authority
- JP
- Japan
- Prior art keywords
- radio wave
- door
- heating chamber
- cavity
- outer periphery
- 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
- Constitution Of High-Frequency Heating (AREA)
Description
【考案の詳細な説明】
本考案は高周波を利用して食品等の加熱殺菌を行なう高
周波加熱装置の扉部分の改良に係る。[Detailed Description of the Invention] The present invention relates to an improvement of the door portion of a high-frequency heating device that uses high-frequency waves to heat and sterilize foodstuffs and the like.
高周波加熱装置は2450MHzの高周波を利用して所
期の加熱殺菌等を行なうものであるが、その電波が高周
波加熱装置本体と加熱室開口を開閉自在な扉の間から外
部に漏洩する危険性があり、従来は扉を本体に密着させ
る金属接触方式により電波漏洩を防止していた。High-frequency heating equipment uses high frequency waves of 2450 MHz to carry out the desired heat sterilization, etc., but there is a risk that the radio waves may leak to the outside between the main body of the high-frequency heating equipment and the door that opens and closes the heating chamber. Previously, radio wave leakage was prevented by a metal contact method in which the door was tightly attached to the main body.
然しながら、扉と装置本体とを全周面にわたって良好な
接触を行なわせることは困難であり、電波漏洩も大きい
という欠点があった。However, it is difficult to make good contact between the door and the main body of the device over the entire circumference, and there is a drawback that radio wave leakage is large.
そこで、扉に装置本体と金属接触する部分と電波トラッ
プとなるキャビティと、電波吸収材を設け、電波漏洩を
確実に防止する高周波加熱装置の電波漏洩防止装置が考
案され、実装にあって大きな成果を」―げている。Therefore, a radio wave leakage prevention device for high-frequency heating equipment was devised that reliably prevents radio wave leakage by providing the door with a part that makes metal contact with the main body of the device, a cavity that acts as a radio wave trap, and a radio wave absorbing material, and has achieved great results in its implementation. "I'm getting."
本考案は上記のような扉に構成された電波漏洩防止装置
に一例として使用されている電波吸収材の形状に特に工
夫を施したもので、以下図面と共に本考案の電波漏洩防
止装置について説明する。The present invention is a special modification of the shape of the radio wave absorbing material used in the radio wave leakage prevention device constructed on the door as described above, and the radio wave leakage prevention device of the present invention will be explained below with reference to the drawings. .
第1図にお・いて、1は電イルンジ本体で、この本体1
内には前面を開r−] した金属製の加熱室2を設け、
加熱室2外部に設けられたマグネトロン3によって発生
された高周波を導波管4により加熱室2に導びき、ター
ンテーブル5に載置された食品6を加熱調理するように
構成している。In Fig. 1, 1 is the electric lunge main body, and this main body 1
Inside is a metal heating chamber 2 with an open front.
High frequency waves generated by a magnetron 3 provided outside the heating chamber 2 are guided into the heating chamber 2 through a waveguide 4, and food 6 placed on a turntable 5 is heated and cooked.
加熱室2の開「1部には左端縁を上記本体1の前端壁に
枢支した扉7を開閉自在に装着している。A door 7 whose left edge is pivoted to the front end wall of the main body 1 is attached to the opening part of the heating chamber 2 so as to be openable and closable.
尚、ターンテーブル5は加熱室2の底板下に配設したモ
ータ8により回転駆動される。Incidentally, the turntable 5 is rotationally driven by a motor 8 disposed under the bottom plate of the heating chamber 2.
一方上記扉7は第3図乃至第5図に示すように、加熱室
2を視覚するため電波遮蔽用のパンチング板を透明板に
より挟持する透視窓9と、この透視窓9を保持するため
扉外周部を構成する金属製の中空な扉枠10とから構成
している。On the other hand, as shown in FIGS. 3 to 5, the door 7 includes a transparent window 9 in which a punching plate for shielding radio waves is sandwiched between transparent plates in order to view the heating chamber 2, and a door for holding the transparent window 9. It is composed of a hollow door frame 10 made of metal and forming an outer peripheral part.
この透視窓9は全外周縁を扉枠10と枠状のシーラ板1
1とによる装着保持をもって扉枠10に固定し、また扉
7の閉戊状態にあって加熱室2の前壁13に金属板のシ
ーラ板11は数個所ネジ12によって扉枠10に取り付
ける。This see-through window 9 has its entire outer periphery connected to a door frame 10 and a frame-shaped sealer plate 1.
The sealer plate 11, which is a metal plate, is fixed to the door frame 10 by attaching and holding the door 7 to the front wall 13 of the heating chamber 2 when the door 7 is closed.
さて、扉枠10内部には断面り字状の金属板14を立設
し、シーラ板11とこの金属板14との囲みにより扉枠
10に電波トラップとなるチョーク室構造のキャビティ
15を形成している。Now, inside the door frame 10, a metal plate 14 with a cross-sectional shape is set upright, and a cavity 15 having a choke chamber structure that becomes a radio wave trap is formed in the door frame 10 by surrounding the sealer plate 11 and this metal plate 14. ing.
このキャビティ15の外周側の加熱室2開口面側の一部
には凹部16を形成し、ここに電波吸収材17を配設す
る。A recess 16 is formed in a part of the outer periphery of the cavity 15 on the opening surface side of the heating chamber 2, and a radio wave absorbing material 17 is disposed in the recess 16.
この断面コ字状の電波吸収材17は扉枠10の全周にわ
たって漏洩電波を吸収するよう棒状に一体形成したフェ
ライトを用い、上記凹部16に装着した後引掛は爪21
.22を一体形成する断面略コ字状のキャビティカバー
18をキャビティ15の開口部に取付け、第5図に拡大
して示すようにカバー18の外周部を電波吸収材17の
小突起19に係合させて電波吸収材17を凹部16に押
さえつけ保持する。The radio wave absorbing material 17 having a U-shaped cross section is made of ferrite integrally formed into a rod shape so as to absorb leaked radio waves over the entire circumference of the door frame 10, and after being attached to the recess 16, the hook 21
.. 22 is integrally formed with a cavity cover 18 having a substantially U-shaped cross section is attached to the opening of the cavity 15, and the outer periphery of the cover 18 is engaged with the small protrusion 19 of the radio wave absorbing material 17, as shown in an enlarged view in FIG. Then, the radio wave absorbing material 17 is pressed and held in the recess 16.
尚、従来の電波吸収材20は第2図のようにたんざく状
の4本フェライトを用いてドア枠10の全周に組立てて
いたもので、扉組立がそれだけ煩雑となり、第3図のよ
うに単品の棒状フェライトを用いればその煩雑さから回
避できる。In addition, the conventional radio wave absorbing material 20 was assembled around the entire circumference of the door frame 10 using four tanzaku-shaped ferrites as shown in Fig. 2, which made the door assembly that much more complicated. If a single rod-shaped ferrite is used, the complexity can be avoided.
以上のような構造の扉10によれば、本体1に閉成状態
にあってシーラ板11の金属接触、キャビティー15の
漏洩電波トラップそして電波吸収材17による漏洩電波
の吸収によって、確実に扉10と本体1間の電波漏洩を
防止することができる。According to the door 10 having the above structure, when the main body 1 is in the closed state, the metal contact of the sealer plate 11, the leakage radio wave trap of the cavity 15, and the absorption of leakage radio waves by the radio wave absorbing material 17 ensure that the door is closed. Radio wave leakage between 10 and main body 1 can be prevented.
以上のように、本考案の電波漏洩防止装置によれば、フ
ェライト等電波吸収材を棒状単品化することによって扉
組立作業が簡略化し、組立時間の短縮にもなる高周波加
熱装置を提供できる。As described above, according to the radio wave leakage prevention device of the present invention, it is possible to provide a high frequency heating device that simplifies the door assembly work and shortens the assembly time by making the radio wave absorbing material such as ferrite into a single bar-shaped product.
第1図は本考案を電子レンジに適用した場合の一実施例
を示す概略構成図、第2図は従来の扉構造を説明する扉
裏面図、第3図は本考案を実施する扉裏面図、第4図は
第1図の扉部分拡大断面図、第5図は第4図のA部拡大
図。
2:加熱室、10:扉枠、7:扉、17:電波吸収材。Fig. 1 is a schematic configuration diagram showing an example of applying the present invention to a microwave oven, Fig. 2 is a back view of the door explaining the conventional door structure, and Fig. 3 is a back view of the door implementing the present invention. , FIG. 4 is an enlarged cross-sectional view of the door portion in FIG. 1, and FIG. 5 is an enlarged view of part A in FIG. 4. 2: heating chamber, 10: door frame, 7: door, 17: radio wave absorbing material.
Claims (1)
空の扉枠の内部に立設する断面り字状の金属板と扉の閉
成時に加熱室の前壁に金属接触するシーラー板とにより
形成されるチョーク室構造のキャビティの外周側の加熱
室開口面側の一部に形成した凹部に、断面コ字状にて全
周にわたって漏洩電波を吸収するよう棒状に一体形成し
た電波吸収材を配設するとともに、引掛は爪を一体形成
する断面略コ字状のキャビティカバーを上記キャビティ
の開[]部に取付け、該キャビティカバーの外周部を上
記電波吸収材の突起に係合させて該電波吸収材を上記凹
部に装着保持したことを特徴とする高周波加熱装置の電
波漏洩防止装置。A metal plate with an orthogonal cross-section that is installed inside the hollow metal door frame that forms the outer periphery of the door that opens and closes the heating chamber opening, and a sealer plate that makes metal contact with the front wall of the heating chamber when the door is closed. A radio wave absorber is integrally formed in a bar shape with a U-shaped cross section to absorb leakage radio waves all around the circumference in a recess formed in a part of the heating chamber opening side on the outer periphery of the cavity of the choke chamber structure formed by the above. At the same time, a cavity cover having a generally U-shaped cross section and a hook integrally formed with the hook is attached to the opening [ ] of the cavity, and the outer periphery of the cavity cover is engaged with the protrusion of the radio wave absorbing material. A radio wave leakage prevention device for a high frequency heating device, characterized in that the radio wave absorbing material is mounted and held in the recess.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11015778U JPS5934076Y2 (en) | 1978-08-10 | 1978-08-10 | Radio wave leakage prevention device for high frequency heating equipment |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11015778U JPS5934076Y2 (en) | 1978-08-10 | 1978-08-10 | Radio wave leakage prevention device for high frequency heating equipment |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5526881U JPS5526881U (en) | 1980-02-21 |
JPS5934076Y2 true JPS5934076Y2 (en) | 1984-09-21 |
Family
ID=29056777
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP11015778U Expired JPS5934076Y2 (en) | 1978-08-10 | 1978-08-10 | Radio wave leakage prevention device for high frequency heating equipment |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5934076Y2 (en) |
-
1978
- 1978-08-10 JP JP11015778U patent/JPS5934076Y2/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS5526881U (en) | 1980-02-21 |
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