JPH0381254B2 - - Google Patents
Info
- Publication number
- JPH0381254B2 JPH0381254B2 JP24248283A JP24248283A JPH0381254B2 JP H0381254 B2 JPH0381254 B2 JP H0381254B2 JP 24248283 A JP24248283 A JP 24248283A JP 24248283 A JP24248283 A JP 24248283A JP H0381254 B2 JPH0381254 B2 JP H0381254B2
- Authority
- JP
- Japan
- Prior art keywords
- yoke
- magnetron
- pair
- magnetic pole
- side wall
- 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
- 210000002105 tongue Anatomy 0.000 claims description 6
- 238000005452 bending Methods 0.000 description 2
- BGPVFRJUHWVFKM-UHFFFAOYSA-N N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] Chemical compound N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] BGPVFRJUHWVFKM-UHFFFAOYSA-N 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J23/00—Details of transit-time tubes of the types covered by group H01J25/00
- H01J23/12—Vessels; Containers
Landscapes
- Microwave Tubes (AREA)
Description
【発明の詳細な説明】
産業上の利用分野
本発明は、マグネトロンとその外部磁気回路と
からなるマグネトロン装置に関する。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a magnetron device comprising a magnetron and its external magnetic circuit.
従来例の構成とその問題点
電子レンジ等に用いられるマグネトロン装置で
は、マグネトロンとその外部磁気回路とを一体に
結合するため、断面ロ字状の枠形継鉄を用いてい
る。この枠形継鉄は、マグネトロンの１対の磁極
部および同磁極部上に積み重ねられた永久磁石を
２方から挾み込む断面コ字状の第１および第２の
継鉄からなり、第１および第２の継鉄はそれぞれ
の側壁が重なり合う部分で側方からねじ止めされ
る。このため、マグネトロンの１対の磁極部と同
磁極部上に積み重ねられた永久磁石とを十分に締
めつけた状態で前記ねじ止めを施すことが必要と
なり、締めつけ不足によつてがたを生じたり、過
度の締めつけにより、永久磁石等を破損させたり
する危険があつた。また、枠形継鉄の管軸方向間
隔に伸長裕度がないため、マグネトロンの温度上
昇に伴う伸張で、永久磁石等にクラツクや破損を
生じる恐れもあつた。Conventional Structure and Problems In a magnetron device used in a microwave oven or the like, a frame-shaped yoke with a rectangular cross section is used to integrally connect the magnetron and its external magnetic circuit. This frame-shaped yoke consists of first and second yokes, each having a U-shaped cross section, which sandwich a pair of magnetic pole parts of a magnetron and a permanent magnet stacked on the magnetic pole parts from two sides. and the second yoke is screwed laterally at the portion where the respective side walls overlap. For this reason, it is necessary to tighten the pair of magnetic poles of the magnetron and the permanent magnets stacked on the same magnetic pole with the screws, which may cause looseness due to insufficient tightening. There was a risk of damaging the permanent magnet etc. due to excessive tightening. Furthermore, since there was no margin for expansion in the interval between the frame yokes in the tube axis direction, there was a risk that the permanent magnets would be cracked or damaged due to expansion as the temperature of the magnetron increased.
発明の目的
したがつて本発明の目的とするところは、前記
締めつけが容易であるばかりでなく、締めつけの
程度を装置ごとに選択でき、しかも枠形継鉄の管
軸方向間隔に伸張裕度を与え得るマグネトロン装
置を提供することにある。OBJECTS OF THE INVENTION Accordingly, an object of the present invention is to not only facilitate the above-mentioned tightening, but also to be able to select the degree of tightening for each device, and to increase the expansion margin in the axial spacing of the frame yoke. The object of the present invention is to provide a magnetron device that can provide
発明の構成
本発明のマグネトロン装置によると、断面コ字
状の第１の継鉄の各側壁の端縁に、切り起しによ
り形成された１対のバンド部分を有せしめ、断面
コ字状の第２の継鉄の各側壁の端縁には、前記バ
ンド部分に挿し込まれて前記側壁に沿い相互に近
接または離隔する方向へ屈曲される１対の舌状部
を突設せしめるのであり、これを以下図面に示し
た実施例とともに詳しく説明する。Structure of the Invention According to the magnetron device of the present invention, a pair of band portions formed by cutting and raising are provided at the edge of each side wall of the first yoke having a U-shaped cross section. A pair of tongue-shaped portions are provided on the edges of each side wall of the second yoke to protrude, and are inserted into the band portion and bent toward or away from each other along the side wall, This will be explained in detail below along with embodiments shown in the drawings.
実施例の説明
第１図においてマグネトロン１の一方の磁極部
２の外端面上に設けられた第１の環状永久磁石
３、マグネトロン１の他方の磁極部４の外端面上
に設けられた第２の環状永久磁石５およびこれら
をとり囲む断面ロ字状の枠形継鉄６は、マグネト
ロン１に対する外部磁気回路を形成しており、枠
形継鉄６は断面コ字状の第１および第２の継鉄
７，８からなる。ただし第１および第２の継鉄
７，８は、１対の磁極部２，４およびその外端面
上に積み重ねられた永久磁石３，５を２方から挾
み込んでおり、マグネトロン１の電磁波放出端子
９は第２の継鉄８の中央孔１０を貫通して延び、
マグネトロン１の陰極端子１１は第１の継鉄７の
中央孔１２を貫通して延びている。DESCRIPTION OF EMBODIMENTS In FIG. 1, a first annular permanent magnet 3 is provided on the outer end surface of one magnetic pole section 2 of the magnetron 1, and a second annular permanent magnet 3 is provided on the outer end surface of the other magnetic pole section 4 of the magnetron 1. An annular permanent magnet 5 and a frame-shaped yoke 6 surrounding them with a square-shaped cross section form an external magnetic circuit for the magnetron 1. It consists of yokes 7 and 8. However, the first and second yokes 7 and 8 sandwich a pair of magnetic pole parts 2 and 4 and permanent magnets 3 and 5 stacked on their outer end faces from two sides, so that the electromagnetic waves of the magnetron 1 are The discharge terminal 9 extends through the central hole 10 of the second yoke 8,
A cathode terminal 11 of the magnetron 1 extends through a central hole 12 of the first yoke 7.
第２図に示すように第１の継鉄７の両側壁１３
ａ，１３ｂは、内方への切り起こしにより形成さ
れた１対のバンド部分１４ａ，１４ｂを、第２の
継鉄８側の端縁にそれぞれ有しており、バンド部
分１４ａ，１４ｂの各突出長は、板厚の２倍より
もわずかに大きい。また、第２の継鉄８の両側壁
１５ａ，１５ｂは、１対のバンド部分１４ａ，１
４ｂに挿入されるべき１対の舌状部１６ａ，１６
ｂを、第１の継鉄７側の端縁にそれぞれ有してい
る。 As shown in FIG. 2, both side walls 13 of the first yoke 7
a, 13b have a pair of band portions 14a, 14b formed by cutting and bending inward, respectively, at the edge on the second yoke 8 side, and each protrusion of the band portions 14a, 14b The length is slightly greater than twice the plate thickness. Further, both side walls 15a, 15b of the second yoke 8 have a pair of band portions 14a, 1
A pair of tongues 16a, 16 to be inserted into 4b
b at the edge on the first yoke 7 side.
１対の舌状部１６ａ，１６ｂは、１対のバンド
部分１４ａ，１４ｂに挿通されたのち、第１の継
鉄７の側壁に沿い相互に近接または離隔する方向
へ屈曲されるのであり、第３図は舌状部１６ａの
屈曲状態を示す。 The pair of tongue portions 16a, 16b are inserted into the pair of band portions 14a, 14b, and then bent toward or away from each other along the side wall of the first yoke 7. FIG. 3 shows a bent state of the tongue portion 16a.
このように構成される本発明実施のマグネトロ
ン装置では、マグネトロン１の１対の磁極部２，
４およびこの磁極部上に設けられた永久磁石３，
５を、第１および第２の継鉄７，８により挾み込
み、バンド部分１４ａ，１４ｂに挿通された舌状
部１６ａ，１６ｂを屈曲させるだけで一体組み立
てができるのであり、前記屈曲の加減で締めつけ
強度を調整することができる。また、第１および
第２の継鉄７，８は、バンド部分１４ａ，１４ｂ
と舌状部１６ａ，１６ｂとの係合により前述のよ
うに結合されるため、その管軸方向間隔に伸長裕
度を生じ、温度上昇によりマグネトロン１が伸張
しても、これにより永久磁石にクラツクや破損を
生じる危険がない。 In the magnetron device according to the present invention configured as described above, the pair of magnetic pole portions 2 of the magnetron 1,
4 and a permanent magnet 3 provided on this magnetic pole part,
5 between the first and second yokes 7, 8, and by simply bending the tongue-shaped parts 16a, 16b inserted through the band parts 14a, 14b. You can adjust the tightening strength with . Further, the first and second yokes 7, 8 have band portions 14a, 14b.
Since they are connected as described above by the engagement of the tongues 16a and 16b, an expansion margin is created in the tube axis direction spacing, and even if the magnetron 1 expands due to temperature rise, this will prevent the permanent magnet from cracking. There is no risk of damage or damage.
発明の効果
本発明のマグネトロン装置は前述のように構成
されるので、組み立てが容易であるばかりでな
く、締めつけの程度を装置ごとに選択でき、しか
も枠形継鉄の管軸方向間隔に伸長裕度を与え得る
のであつて、組み立ての能率および歩留を向上さ
せることができる。Effects of the Invention Since the magnetron device of the present invention is configured as described above, it is not only easy to assemble, but also allows the degree of tightening to be selected for each device, and furthermore, the length of the frame-shaped yoke can be adjusted to allow for expansion in the tube axis direction. As a result, assembly efficiency and yield can be improved.
第１図は本発明を実施したマグネトロン装置の
側断面図、第２図は同装置の要部の分解斜視図、
第３図は同要部の斜視図である。
１……マグネトロン、２，４……磁極部、３，
５……永久磁石、６……枠形継鉄、７……第１の
継鉄、８……第２の継鉄、１３ａ，１３ｂ……側
壁、１４ａ，１４ｂ……バンド部分、１６ａ，１
６ｂ……舌状部。
FIG. 1 is a side sectional view of a magnetron device embodying the present invention, FIG. 2 is an exploded perspective view of the main parts of the device,
FIG. 3 is a perspective view of the main parts. 1... Magnetron, 2, 4... Magnetic pole part, 3,
5... Permanent magnet, 6... Frame-shaped yoke, 7... First yoke, 8... Second yoke, 13a, 13b... Side wall, 14a, 14b... Band portion, 16a, 1
6b...tongue.
Claims (1)
ロ字状の枠形継鉄が、前記マグネトロンの１対の
磁極部および同磁極部上に積み重ねられた永久磁
石を２方から挾み込む断面コ字状の第１および第
２の継鉄からなるマグネトロン装置において、前
記第１の継鉄は切り起しにより形成された１対の
バンド部分を各側壁の端縁に有し、前記第２の継
鉄は前記バンド部分に挿し込まれて前記側壁に沿
い相互に近接または離隔する方向へ屈曲された１
対の舌状部を各側壁の端縁に有していることを特
徴とするマグネトロン装置。1. A frame-shaped yoke with a rectangular cross-section forming an external magnetic circuit of the magnetron has a U-shaped cross-section, sandwiching a pair of magnetic pole parts of the magnetron and a permanent magnet stacked on the magnetic pole parts from two sides. In a magnetron device consisting of a first and second yoke, the first yoke has a pair of cut-and-raised band portions at the edge of each side wall, and the second yoke are inserted into the band portion and bent toward or away from each other along the side wall.
A magnetron device comprising a pair of tongues at the edge of each side wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24248283A JPS60133633A (en) | 1983-12-21 | 1983-12-21 | Magnetron apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24248283A JPS60133633A (en) | 1983-12-21 | 1983-12-21 | Magnetron apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60133633A JPS60133633A (en) | 1985-07-16 |
| JPH0381254B2 true JPH0381254B2 (en) | 1991-12-27 |
Family
ID=17089740
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP24248283A Granted JPS60133633A (en) | 1983-12-21 | 1983-12-21 | Magnetron apparatus |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60133633A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR940006922Y1 (en) * | 1991-12-14 | 1994-10-06 | 주식회사 금성사 | Yoke combinding device of magnetron |
-
1983
- 1983-12-21 JP JP24248283A patent/JPS60133633A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60133633A (en) | 1985-07-16 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |