JPH02117053A - Magnetron - Google Patents
MagnetronInfo
- Publication number
- JPH02117053A JPH02117053A JP26804288A JP26804288A JPH02117053A JP H02117053 A JPH02117053 A JP H02117053A JP 26804288 A JP26804288 A JP 26804288A JP 26804288 A JP26804288 A JP 26804288A JP H02117053 A JPH02117053 A JP H02117053A
- Authority
- JP
- Japan
- Prior art keywords
- gasket
- magnetron
- hole
- mounting plate
- outer diameter
- 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
- 230000002093 peripheral effect Effects 0.000 claims description 2
- 230000001133 acceleration Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000009954 braiding Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Landscapes
- Microwave Tubes (AREA)
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野コ
本発明は、マグネトロンのシール部とガスケットの孔が
強制嵌合しているだけでなく、ガスケットの外径端面も
マグネトロンへの取付は板の孔の内周に強固に保持固定
され、ガスケットが脱落しないようにしたマグネトロン
に関する。[Detailed Description of the Invention] [Industrial Field of Application] The present invention not only forcibly fits the sealing part of the magnetron and the hole of the gasket, but also the outer diameter end surface of the gasket is attached to the magnetron by a plate. This invention relates to a magnetron that is firmly held and fixed to the inner periphery of a hole to prevent the gasket from falling off.
［従来の技術］
マグネトロンを導波管に接続する個所に隙間が存在する
と、其処からマイクロ波が漏洩し、規制の対象となる所
謂不要波として問題となる。このようなマイクロ波漏洩
を防止するために、細い金訊線で編組した導電性と弾性
を有する通常円環状のガスケットを部材間に挾ませて隙
間の発生を防止している。[Prior Art] If there is a gap where a magnetron is connected to a waveguide, microwaves leak from the gap and become a problem as so-called unnecessary waves that are subject to regulations. In order to prevent such microwave leakage, a conductive and elastic normally annular gasket braided with thin metal wire is sandwiched between the members to prevent the occurrence of gaps.
このようなガスケットを、マグネ・トロン本体がら円筒
状に突出したマイクロ波出力部の基部に嵌装してマグネ
トロンと導波管との間に隙間が生じないようにする。通
常、ガスケットの孔をマイクロ波出力部の基部に強制嵌
合させて、ガスケットがマグネトロンから脱落するのを
防止しているが、マグネトロンの製造者から使用者への
輸送途中、落下時などに生ずる非常に大きい加速度で、
ガスケットが脱落してしまう事がある。Such a gasket is fitted to the base of the microwave output section projecting cylindrically from the magnetron main body to prevent a gap from forming between the magnetron and the waveguide. Normally, the hole in the gasket is forcibly fitted to the base of the microwave output part to prevent the gasket from falling off the magnetron, but this can occur when the magnetron is being transported from the manufacturer to the user or dropped. with very high acceleration,
Gaskets may fall off.
このようなガスケット脱落を防止するために。To prevent this type of gasket from falling off.
例えば特開昭５７ ７２２４１号公報には、マグネ１ヘ
ロン側取付は板に円環状突起部を設け、この突起部の内
縁にガスケットの外周を嵌合させる方法が開示されてい
る。しかし、このようにしても、未だ、ガスケット脱落
事故発生を絶滅することは出来なかった。For example, JP-A-57-72241 discloses a method for attaching the magnet 1 to the heron side by providing an annular protrusion on the plate and fitting the outer periphery of the gasket to the inner edge of the protrusion. However, even with this approach, it has not yet been possible to eliminate the occurrence of gasket falling accidents.
［発明が解決しようとする課題］
本発明は、上記従来の問題を解決し、従来通りの簡単な
構造のガスケットを、その外周部で確実に保持できるよ
うにした取付は板（マグネ１ヘロンの作用空間の管軸方
向磁界の磁気帰路となるヨーク上板を兼用させても良い
）を有するマグネットを堤供することを目的とする。[Problems to be Solved by the Invention] The present invention solves the above-mentioned conventional problems, and the mounting plate (Magne 1 Heron's The object of the present invention is to provide a magnet having a yoke upper plate (which may also serve as a yoke upper plate serving as a magnetic return path for a magnetic field in the tube axis direction of the working space).
［課題を解決するための手段］
上記［］的を達成するために本発明においては、マグネ
１ヘロンを導波管に接続する個所でマイクロ波漏洩が生
じないように、マグネトロンのマイクロ波出力部の基部
に嵌装する円環状導電性ガスケットを、先ず其の内部孔
の周囲をマグネトロンの管軸方向に圧入して内部孔を箭
記マイクロ波出力部の基部に強制嵌合させ、該ガスケッ
トの外径部を、マグネトロン側取付は板に穿設した、取
付は仮のマグネトロン本体に接する側の面から周縁ヲｔ
）テ段状に突起させた孔の内側に入らせ、ガスケラ１へ
外径部端面の一部が取付は板の孔の内周の１１」記階段
状突起部の階段裏に生じた凹部に食い込むまで更に圧入
して、ガスケット外径部を取付け板孔内周部に強制嵌合
させ、ガスケットを取付は板を介してマグネＩ・ロンに
強固に保持させるようにした。[Means for Solving the Problems] In order to achieve the above [] objective, in the present invention, the microwave output section of the magnetron is First, the annular conductive gasket to be fitted to the base of the magnetron is press-fitted around its internal hole in the tube axis direction of the magnetron, and the internal hole is forcibly fitted to the base of the microwave output section, and the gasket is For mounting on the magnetron side, the outer diameter part is drilled into the plate, and the mounting is performed by cutting the periphery from the side that contacts the temporary magnetron body.
) Put it inside the step-shaped protruding hole, and attach a part of the outer diameter end surface to the gas kerater 1 in the recess created at the back of the step of the step-like protrusion marked 11 on the inner circumference of the hole in the plate. The outer diameter part of the gasket was forcibly fitted into the inner circumferential part of the mounting plate hole by further press-fitting until it bit in, and the gasket was firmly held by the Magne I Ron through the mounting plate.
［作用］
上記のような手段をとれば、従来は、取付は板が、必ず
しも確実に保持できなかったガスケットの外周部を、従
来よりは遥かに確実に取付は板の孔の内周縁で強く挾ん
で保持できるようになる。[Function] By taking the above measures, the outer circumference of the gasket, which could not always be held securely by the mounting plate in the past, can be much more securely attached than before, and the inner circumference of the hole in the plate can be firmly attached. Be able to grasp and hold it.
［実施例］
本発明を第１図に示ず実施例図面により更に詳■１に説
明する。第１図（、）は本発明一実施例の」二面図、第
１図（ｂ）は同実施例の要部を断面にした側面図、第１
図（ｃ）は図（ｂ）に示す円Ａ内の拡大断面図である。[Example] The present invention will be explained in more detail in (1) with reference to the drawings of an example, which is not shown in FIG. FIG. 1(,) is a two-sided view of one embodiment of the present invention, FIG. 1(b) is a side view of the main part of the same embodiment, and FIG.
Figure (c) is an enlarged sectional view within circle A shown in figure (b).
図中、１はガスケット、２は取付は板（この実施例では
ヨークの上板を兼用している）、３は取付は板の孔の周
縁に設けた階段状の突起部、４はマグネトロン取付は用
ねし孔を設けた突起部、５はマグネトロンのシール部（
通常封着用合金で作られ具の上部のセラミック円筒の端
面に封着されている）、６はマイクロ波出力部（アンテ
ナ）、７は作用空間に管軸方向磁界を発生させる永久磁
石環である。ガスケット１は細い金属線を編組して製作
し、弾性があり導電性がある。In the figure, 1 is a gasket, 2 is a mounting plate (in this example, it also serves as the upper plate of the yoke), 3 is a mounting step-like protrusion provided around the hole in the plate, and 4 is a magnetron mounting. 5 is the protruding part with a through hole, and 5 is the seal part of the magnetron (
6 is a microwave output part (antenna), and 7 is a permanent magnet ring that generates a magnetic field in the tube axis direction in the working space. . The gasket 1 is made by braiding thin metal wires, and is elastic and conductive.
ガスケラ１へ１の外径は、取付は板２の周縁に階段状突
起部を設けた孔の内径よりも多少大きく、また、ガスケ
ットの孔の内径は、マグネトロンのシール部（マイクロ
波出力部の基部）の外径よりも多少小さい。ガスケット
１の内部孔にマイクロ波出力部６を通し、その基部であ
るシール部５のとこイ）迄挿入すると、ガスケットの孔
径はシール部外径よりも小さいから強制ｔ１″！Ａ合状
態となる。カスケラトの孔の周囲に圧力を加えて押し込
むと、ガスケラ１へ１は傘状に変形してガスケラＩ−の
外周径は小さくなる。ガスケットの外径は、本来は取付
け（反２の孔の内径よりも大きいけれども、上記の如く
変形して小さくなっているから、ガスケン１〜外径部を
取付は板の孔の中に入れることが出来る。The outer diameter of the gasket 1 is slightly larger than the inner diameter of the hole in which the step-like protrusion is provided on the periphery of the plate 2 for mounting. The diameter is slightly smaller than the outer diameter of the base. When the microwave output part 6 is passed through the internal hole of the gasket 1 and inserted up to the base of the seal part 5), the hole diameter of the gasket is smaller than the outer diameter of the seal part, so a forced state of t1''!A occurs. When pressure is applied around the hole of the gasket and it is pushed in, the gasket 1 deforms into an umbrella shape and the outer diameter of the gasket I- becomes smaller. Although it is larger than the inner diameter, it is deformed and becomes smaller as described above, so the outer diameter part of the gas can can be inserted into the hole in the plate.
この状態で更にガスケラ１への孔の周囲を押しつ（づて
ガスケットの孔にシール部を強制嵌合させて行くと、傘
状に変形していたガスケットが１１Ｚらになって、それ
と共にガスケラＩ−の外径は大きくなり、外径部端面の
一部は、取付は板の孔の周縁の階段状突起の下に生じた
凹みの中に食い込む。このようにしてガスケットの外径
部が取付は板の孔の内周面に強制嵌合され、しかもガス
ケット外径部端面の一部は取付は板の孔の縁の下（階段
状または庇状に張り出した縁の下）の凹部にもぐりこん
でいるから、環軸方向に強い加速度が加わっても外れな
い。このようにガスケットの外径部端面の一部が取付は
板の孔の縁の下の凹部にもぐり込み易いように、予めガ
スケット外径部端面全周にわたって高さ０．２〜１ 、
０ ＋ａの段差部を設けておけば、更に効果がある。In this state, when the circumference of the hole in the gasket 1 is further pressed (and the seal portion is forcibly fitted into the hole in the gasket), the gasket which had been deformed into an umbrella shape becomes 11Z, and the gasket 1 is deformed at the same time. The outer diameter of I- becomes larger, and a part of the end face of the outer diameter part bites into the recess created under the stepped projection on the periphery of the hole in the plate.In this way, the outer diameter part of the gasket becomes larger. The installation is force-fitted to the inner peripheral surface of the hole in the plate, and a part of the end surface of the outer diameter part of the gasket is installed in a recess under the edge of the hole in the plate (below the edge that protrudes like a step or an eave). Because it is sunk in, it will not come off even if strong acceleration is applied in the direction of the ring axis.In this way, a part of the outer diameter end surface of the gasket is pre-installed so that it can easily sink into the recess under the edge of the hole in the plate. Height 0.2-1 over the entire circumference of the gasket outer diameter end face,
If a step portion of 0 + a is provided, further effects will be obtained.
また、取付は板２にはマグネトロン取付は用のねじ孔を
設けるが、このねじ孔は、面装置がガスケット嵌合用孔
の縁の階段状突起部と同じ面装置となるように突起させ
た個所にタップして設ける。In addition, a screw hole is provided in the plate 2 for mounting the magnetron, but this screw hole is located at a point where the surface device protrudes so that it becomes the same surface device as the step-like protrusion on the edge of the gasket fitting hole. Tap to set.
このようにすれば、マグネトロン取付けねじを強く締め
ても全突起部の面装置が同じであるから、マグネトロン
が傾いたりすることはない。In this way, even if the magnetron mounting screw is strongly tightened, the magnetron will not tilt because all the protrusions have the same surface arrangement.
［発明の効果］
以上説明したように本発明によれば、単純な形状の部材
を使用しながら、ガスケットは其の内部孔がマグネトロ
ンのシール部と強制嵌合されるだけでなく、外径部も取
付は板の孔に強制嵌合され、しかも、外径端面の一部は
変形して孔の周囲の縁の下の凹部に食い込んで、此の個
所で強固に保持され、脱落防止に大いに役立つ。なお、
取付は板の孔の周縁に階段状突起部を形成させることは
、例えば、絞り、ハーフブランキング等の工法によって
極めて容易に実行できる。[Effects of the Invention] As explained above, according to the present invention, although a member with a simple shape is used, the gasket not only has its internal hole forcibly fitted with the seal portion of the magnetron, but also has an outer diameter When installing, it is force-fitted into the hole in the plate, and a part of the outer diameter end surface deforms and bites into the recess under the edge around the hole, and it is firmly held at this point, which greatly prevents it from falling off. Helpful. In addition,
Attachment can be carried out very easily by forming step-like protrusions around the periphery of the hole in the plate, for example, by drawing, half blanking, or other construction methods.
第１図（ａ）は本発明一実施例の上面図、第１図（ｂ）
は同実施例の要部を断面にした側面図、第１図（ｃ）は
図（ｂ）に示す円Ａ内の拡大断面図である。
１・・ガスケット、 ２・・・取付は板、 ３・・・取
付は板の孔の周縁に設けた階段状の突起部、 ４マグネ
トロン取付は用ねじ孔を設けた突起部、５・・・マグネ
トロンのシール部、 ６・・・マイクロ波出力部、
７・・・永久磁石環。FIG. 1(a) is a top view of one embodiment of the present invention, FIG. 1(b)
1 is a cross-sectional side view of the main part of the same embodiment, and FIG. 1(c) is an enlarged sectional view within circle A shown in FIG. 1(b). 1...Gasket, 2...Plate for mounting, 3...Step-shaped protrusion around the hole in the plate for mounting, 4Protrusion with screw hole for magnetron mounting, 5... Seal part of magnetron, 6... microwave output part,
7...Permanent magnet ring.
Claims (1)
漏洩が生じないように、マグネトロンのマイクロ波出力
部の基部に嵌装する円環状導電性ガスケットを、先ず其
の内部孔の周囲をマグネトロンの管軸方向に圧入して内
部孔を前記マイクロ波出力部の基部に嵌合させ、該ガス
ケットの外径部を、マグネトロン側取付け板に穿設した
、取付け板のマグネトロン本体に接する側の面から周縁
を階段状に突起させた孔の内側に入らせ、ガスケット外
径部端面の一部が取付け板の孔の内周の前記階段状突起
部の階段裏に生じた凹部に食い込むまで更に圧入して、
ガスケット外径部を取付け板孔内周部に強制嵌合させ、
ガスケットを取付け板を介してマグネトロンに強固に保
持させたことを特徴とするマグネトロン。 ２、ガスケット外径部端面に全周にわたって０．２〜１
．０ｍｍの高さに凹みを形成させた請求項１記載のマグ
ネトロン。 ３、取付け板に、マグネトロン取付け用ねじ孔を、孔周
縁の階段状突起部と同じ面装置まで突起させた個所に螺
設した請求項１記載のマグネトロン。[Claims] 1. In order to prevent microwave leakage at the point where the magnetron is connected to the waveguide, an annular conductive gasket to be fitted to the base of the microwave output section of the magnetron is first sealed inside the magnetron. A magnetron main body of a mounting plate, in which the periphery of the hole is press-fitted in the tube axis direction of the magnetron so that the internal hole fits into the base of the microwave output part, and the outer diameter part of the gasket is bored in the magnetron side mounting plate. A part of the end face of the outer diameter part of the gasket enters the inside of the hole whose peripheral edge protrudes in a step-like manner from the side that contacts the hole, and a part of the end surface of the outer diameter part of the gasket forms a recess formed behind the step of the step-like protrusion on the inner periphery of the hole of the mounting plate. Press it further until it bites into the
Forcibly fit the outer diameter part of the gasket into the inner circumference of the mounting plate hole,
A magnetron characterized by a gasket firmly held on the magnetron via a mounting plate. 2. 0.2 to 1 on the entire circumference of the gasket outer diameter end face
．． 2. The magnetron according to claim 1, wherein the recess is formed at a height of 0 mm. 3. The magnetron according to claim 1, wherein the mounting plate has a magnetron mounting screw hole screwed into the mounting plate at a location that protrudes to the same level as the stepped protrusion on the periphery of the hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63268042A JP2796317B2 (en) | 1988-10-26 | 1988-10-26 | Manufacturing method of magnetron |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63268042A JP2796317B2 (en) | 1988-10-26 | 1988-10-26 | Manufacturing method of magnetron |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02117053A true JPH02117053A (en) | 1990-05-01 |
| JP2796317B2 JP2796317B2 (en) | 1998-09-10 |
Family
ID=17453071
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63268042A Expired - Fee Related JP2796317B2 (en) | 1988-10-26 | 1988-10-26 | Manufacturing method of magnetron |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2796317B2 (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5784550A (en) * | 1980-11-14 | 1982-05-26 | Hitachi Ltd | Magnetron |
-
1988
- 1988-10-26 JP JP63268042A patent/JP2796317B2/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5784550A (en) * | 1980-11-14 | 1982-05-26 | Hitachi Ltd | Magnetron |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2796317B2 (en) | 1998-09-10 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |