JPS6032946B2 - magnetron device - Google Patents
magnetron deviceInfo
- Publication number
- JPS6032946B2 JPS6032946B2 JP2808579A JP2808579A JPS6032946B2 JP S6032946 B2 JPS6032946 B2 JP S6032946B2 JP 2808579 A JP2808579 A JP 2808579A JP 2808579 A JP2808579 A JP 2808579A JP S6032946 B2 JPS6032946 B2 JP S6032946B2
- Authority
- JP
- Japan
- Prior art keywords
- magnetron
- pole piece
- magnetic pole
- permanent magnet
- anode cylinder
- 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
- 230000002093 peripheral effect Effects 0.000 claims description 8
- 230000003187 abdominal effect Effects 0.000 claims 2
- 239000000463 material Substances 0.000 description 6
- 229910052751 metal Inorganic materials 0.000 description 6
- 239000002184 metal Substances 0.000 description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 3
- 239000004020 conductor Substances 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 3
- 239000010949 copper Substances 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000005347 demagnetization Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- WLTSUBTXQJEURO-UHFFFAOYSA-N thorium tungsten Chemical compound [W].[Th] WLTSUBTXQJEURO-UHFFFAOYSA-N 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
Landscapes
- Microwave Tubes (AREA)
Description
【発明の詳細な説明】
本発明は、電子レンジに用いられるマグネトロン装置に
関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a magnetron device used in a microwave oven.
一般に、電子レンジ等に用いられるマグネトロン装置は
、マグネトロンと、このマグネトロンの第１磁極片上に
積み重ねられて一方の磁極を前記第１磁極片に磁気的結
合する永久磁石と、この永久磁石の他方の磁極を前記マ
グネトロンの第２磁極片に磁気的結合する枠状継鉄とか
らなり、とくに、前記枠状継鉄に筒状部を有せしめて、
この筒状部に前記マグネトロンの陽極筒体を挿通せしめ
た形式のものでは、装置を非常にコンパクトに構成でき
る。Generally, a magnetron device used in a microwave oven or the like includes a magnetron, a permanent magnet that is stacked on a first magnetic pole piece of the magnetron and magnetically couples one magnetic pole to the first magnetic pole piece, and a permanent magnet that is stacked on a first magnetic pole piece of the magnetron and magnetically couples one magnetic pole to the first magnetic pole piece. a frame-shaped yoke magnetically coupling a magnetic pole to a second magnetic pole piece of the magnetron, and in particular, the frame-shaped yoke has a cylindrical portion,
If the anode cylinder of the magnetron is inserted through this cylindrical part, the apparatus can be constructed very compactly.
しかしこの場合、陽極筒体の外周面が枠状継鉄の筒状部
によって覆われるため、陽極筒体の外周面に放熱板を直
接とりつけることができず、陽極筒体および磁極片等が
、装置の動作開始後短時間で温度上昇し、これに伴って
温度上昇した永久磁石が高温減磁を起すという欠点があ
る。そこで、枠状継鉄の筒状部と陽極筒体との相互間に
良熱伝導性金属の鍵材を充填し、両者を熱的に密に結合
させることが行なわれている。この場合、前記筒状部の
外周面にとりつけた放熱板によって陽極筒体、磁極片お
よび永久磁石等の温度上昇を抑制できるのであるが、前
記相互間に支給する鋼材の量が多すぎると、溶融した鋼
材が垂れ下って陽極筒体の端部に現われ、この端部に磁
極片支持体や他の継鉄等を結合する作業に支障をきたす
。また、前記鍵材の量が少なすぎると、前記熱的結合を
良好に得ることができなくなる。本発明は、前述の点に
留意してなされたもので、本発明のマグネトロン装置を
以下図面に示した実施例とともに説明する。However, in this case, since the outer peripheral surface of the anode cylinder is covered by the cylindrical part of the frame-shaped yoke, the heat sink cannot be directly attached to the outer peripheral surface of the anode cylinder, and the anode cylinder, magnetic pole pieces, etc. There is a drawback that the temperature rises in a short time after the start of operation of the device, and the permanent magnet whose temperature rises accordingly causes high-temperature demagnetization. Therefore, a keying material made of a metal with good heat conductivity is filled between the cylindrical part of the frame-shaped yoke and the anode cylindrical body to thermally bond them tightly. In this case, the temperature rise of the anode cylinder, magnetic pole piece, permanent magnet, etc. can be suppressed by the heat dissipation plate attached to the outer peripheral surface of the cylindrical part, but if the amount of steel provided between them is too large, The molten steel material hangs down and appears at the end of the anode tube, interfering with the work of joining the pole piece support or other yoke to this end. Furthermore, if the amount of the key material is too small, it will be impossible to obtain a good thermal bond. The present invention has been made with the above-mentioned points in mind, and the magnetron device of the present invention will be described below along with embodiments shown in the drawings.
図面において、トリウムタングステンの螺旋体からなる
陰極１を囲綾する銅製の陽極筒体２は、陰極１へ向って
突出する多数の陽極ベイン３を内周面に備え、両閉口端
部には銅またはアルミニウム等の非磁性金属からなる第
１および第２の磁極片支持体４，５を気密に封着してい
る。In the drawing, a copper anode cylinder 2 surrounding a cathode 1 made of a thorium tungsten spiral has a large number of anode vanes 3 protruding toward the cathode 1 on its inner peripheral surface, and has copper or copper at both closed ends. First and second pole piece supports 4 and 5 made of non-magnetic metal such as aluminum are hermetically sealed.
そして、第１の磁極片支持体４によって支持された第１
磁極片６は、第２の磁極片支持体５によって支持された
第２磁極片７と、陰極１を介して相対向していりる。ま
た、第１の磁極片支持体４に突出形成された金属管８の
外端面には、セラミック等からなる絶縁環９が封着され
、絶縁環９の外端面には金属製排気管１０が封着され、
陽極ベイン３から延び出た電磁波導出用導体１１の先端
部は金属製排気管１川こ結合され、同排気管１川ことり
つけられた帽状金属体１２は、電磁波放射アンテナとな
る。また、陰極１の第１端板１３から引き出された棒状
導体１４および第２端板１５から引き出された管状導体
１６はステム１７にいたり、ステム１７のリード線１８
，１９にそれぞれ後続されている。そして、かかるマグ
ネトロンの第１磁極片６の外端面上に積み重ねられた円
柱状の第１永久磁石２川ま、その一方の磁極Ｓを第１磁
極片６に磁気的結合し、第２磁極片７の外満面上に積み
重ねられた円筒状の第２永久磁石２１は、その一方の磁
極Ｎを第１磁極片７に磁気的結合している。and a first pole piece supported by the first pole piece support 4.
The magnetic pole piece 6 faces a second magnetic pole piece 7 supported by a second magnetic pole piece support 5 via the cathode 1 . Further, an insulating ring 9 made of ceramic or the like is sealed to the outer end surface of the metal tube 8 formed protruding from the first pole piece support 4, and a metal exhaust pipe 10 is attached to the outer end surface of the insulating ring 9. sealed,
The tip of the electromagnetic wave deriving conductor 11 extending from the anode vane 3 is coupled to a metal exhaust pipe, and the cap-shaped metal body 12 attached to the exhaust pipe serves as an electromagnetic wave radiation antenna. Further, the rod-shaped conductor 14 drawn out from the first end plate 13 of the cathode 1 and the tubular conductor 16 drawn out from the second end plate 15 are connected to the stem 17, and the lead wire 18 of the stem 17
, 19, respectively. Then, one of the two cylindrical permanent magnets stacked on the outer end surface of the first magnetic pole piece 6 of the magnetron, the magnetic pole S of which is magnetically coupled to the first magnetic pole piece 6, and the second magnetic pole piece The cylindrical second permanent magnet 21 stacked on the entire outer surface of the magnetic pole piece 7 has one magnetic pole N magnetically coupled to the first magnetic pole piece 7 .
また、第１永久磁石２０の他方の磁極Ｎ‘ま、その上に
積み重ねられた平板状継鉄２２，２３、筒状継鉄２４お
よびカップ状継鉄２５からなる組立枠状継鉄を通じて、
第２永久磁石２１の他方の磁極Ｓに磁気的結合している
。そして、筒状継鉄２４の外周面には、多数の放熱板２
６が多段にとりつけられ、その板間を強制空冷用気流が
流通するようになつている。ここで、陽極筒体２と筒状
継鉄２４とは、その相互間に注入された図外の鍵材によ
って磯付されるのであるが、陽極筒体２はその腹部外周
面に凸条２７を有し、一方、筒状継鉄２４はその内周面
に、陽極筒体２を囲綾する連続または非連続の凹溝２８
を有し、凸条２７は凹溝２８に鉄入している。In addition, through the other magnetic pole N' of the first permanent magnet 20, an assembled frame-like yoke consisting of the flat yoke 22, 23, the cylindrical yoke 24, and the cup-shaped yoke 25 stacked above it,
It is magnetically coupled to the other magnetic pole S of the second permanent magnet 21. A large number of heat sinks 2 are provided on the outer peripheral surface of the cylindrical yoke 24.
6 are installed in multiple stages, and a forced air cooling airflow flows between the plates. Here, the anode cylinder 2 and the cylindrical yoke 24 are attached to each other by a key material (not shown) injected between them. On the other hand, the cylindrical yoke 24 has a continuous or discontinuous groove 28 surrounding the anode cylinder 2 on its inner peripheral surface.
The protrusion 27 is inserted into the groove 28 with iron.
陽極筒体２と筒状継鉄２４との鎚付は、磁極片支持体４
，５やカップ状継鉄２５をとりつける前の状態において
行なわれるが、このとき、陽極筒体２と筒状継鉄２４と
は、凸条２７と凹溝２８との係合によって位置決めされ
るから、鍵付時に位置ずれを生じることはない。The hammering of the anode cylinder 2 and the cylindrical yoke 24 is performed using the magnetic pole piece support 4.
, 5 and the cup-shaped yoke 25, but at this time, the anode cylinder 2 and the cylindrical yoke 24 are positioned by the engagement between the protrusions 27 and the grooves 28. , the position will not shift when the key is attached.
また、支給された溶融鋼材の一部は、凹溝２８内に入り
込んで陽極筒体２の全周に拡がるので、溶融鍵材の一部
が垂れ下ったり、あるいは一部分に集中するようなこと
がなく、良好な鑑付を得ることができる。In addition, a part of the supplied molten steel material enters the groove 28 and spreads around the entire circumference of the anode cylinder body 2, so that a part of the molten key material does not hang down or concentrate in one part. It is possible to obtain a good appraisal.
図面は本発明を実施したマグネトロン装置の一部破断側
面図である。
２・・・・・・陽極筒体、６・・・・・・第１磁極片、
７・・・・・・第２磁極片、２０，２１……永久磁石、
２２，２３，２４，２５・・・・・・継鉄、２７・・・
・・・凸条、２８・・・・・・凹溝。The drawing is a partially cutaway side view of a magnetron device embodying the present invention. 2... Anode cylinder body, 6... First magnetic pole piece,
7... Second magnetic pole piece, 20, 21... Permanent magnet,
22, 23, 24, 25...Yoke, 27...
... Convex stripes, 28... Concave grooves.
Claims (1)
に積み重ねられて一方の磁極を前記第１磁極片に磁気的
結合する永久磁石と、この永久磁石の他方の磁極を前記
マグネトロンの第２磁極片に磁気的結合する枠状継鉄と
を備え、前記枠状継鉄の筒状部が前記マグネトロンの陽
極筒体の外周面に鑞付されているマグネトロン装置にお
いて、前記陽極筒体の腹部外周面を囲繞して鑞穎の溜め
溝となる凹溝を前記筒状部の内周面に有せしめるととも
に、前記凹溝に入り込む凸条を前記陽極筒体の腹部外周
面に有せしめたことを特徴とするマグネトロン装置。1 a magnetron, a permanent magnet stacked on a first pole piece of the magnetron to magnetically couple one pole to the first pole piece; and a permanent magnet that magnetically couples the other pole of the permanent magnet to a second pole piece of the magnetron. and a frame-shaped yoke that is coupled to the magnetron, and a cylindrical part of the frame-shaped yoke is brazed to the outer peripheral surface of the anode cylinder of the magnetron, the magnetron having a cylindrical part that surrounds the abdominal outer peripheral surface of the anode cylinder. The cylindrical portion has a concave groove on the inner circumferential surface thereof, which serves as a reservoir groove for the anode, and a convex strip that enters the concave groove is provided on the abdominal outer circumferential surface of the anode cylinder. magnetron device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2808579A JPS6032946B2 (en) | 1979-03-09 | 1979-03-09 | magnetron device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2808579A JPS6032946B2 (en) | 1979-03-09 | 1979-03-09 | magnetron device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS55121251A JPS55121251A (en) | 1980-09-18 |
| JPS6032946B2 true JPS6032946B2 (en) | 1985-07-31 |
Family
ID=12238935
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2808579A Expired JPS6032946B2 (en) | 1979-03-09 | 1979-03-09 | magnetron device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6032946B2 (en) |
-
1979
- 1979-03-09 JP JP2808579A patent/JPS6032946B2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS55121251A (en) | 1980-09-18 |
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