JPH0766745B2 - Magnetron device - Google Patents
Magnetron deviceInfo
- Publication number
- JPH0766745B2 JPH0766745B2 JP241786A JP241786A JPH0766745B2 JP H0766745 B2 JPH0766745 B2 JP H0766745B2 JP 241786 A JP241786 A JP 241786A JP 241786 A JP241786 A JP 241786A JP H0766745 B2 JPH0766745 B2 JP H0766745B2
- Authority
- JP
- Japan
- Prior art keywords
- magnetron
- horizontal
- anode cylinder
- blades
- central region
- 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 - Fee Related
Links
- 238000001816 cooling Methods 0.000 claims description 19
- 230000002093 peripheral effect Effects 0.000 claims description 5
- 230000000694 effects Effects 0.000 description 3
- 238000001125 extrusion Methods 0.000 description 3
- 230000017525 heat dissipation Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 238000005192 partition Methods 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
Landscapes
- Microwave Tubes (AREA)
- Common Detailed Techniques For Electron Tubes Or Discharge Tubes (AREA)
Description
【発明の詳細な説明】 産業上の利用分野 本発明は、電子レンジ等に用いられる強制空冷型のマグ
ネトロン装置に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a forced air cooling type magnetron device used in a microwave oven or the like.
従来の技術 一般に、電子レンジ等に用いられる強制空冷型のマグネ
トロン装置は、マグネトロンの陽極筒体の外周面に多数
の放熱翼板を多段にとりつけてなり、放熱翼板間に強制
空冷用の気流を流通させる構成となしている。このた
め、動作時におけるマグネトロンの温度上昇が緩和さ
れ、マグネトロンが異常高温となることによる動作不能
や励磁用永久磁石の高温減磁を防止することができる。2. Description of the Related Art Generally, a forced air cooling type magnetron device used in a microwave oven or the like has a large number of heat radiating blades mounted in multiple stages on the outer peripheral surface of the anode cylinder of the magnetron, and the air flow for forced air cooling between the heat radiating blades. Is said to be distributed. Therefore, the temperature rise of the magnetron during operation is mitigated, and it is possible to prevent the magnetron from becoming inoperable due to abnormally high temperature and demagnetizing the exciting permanent magnet at high temperature.
発明が解決しようとする問題点 ところで、マグネトロン装置の一層の小型・軽量化およ
びコストの低減を図るためには、とくに空冷効率の改善
が必要となる。第４図は従来のマグネトロン装置におけ
る強制空冷用気流の流通路を示したもので、放熱翼板１
の板間を流通する強制空冷用気流２が、マグネトロンの
陽極筒体３の付近で両側方へ大きく分流してしまうこと
から、もっとも高温となる陽極筒体３を効率よく空冷し
難いという問題点があった。なお、図中の４は放熱翼板
１の陽極筒体貫通用円筒部、５は枠状継鉄の側壁部を示
す。そのうえ、従来のマグネトロン装置においては第５
図に示すように、陽極筒体３の外周面上に圧入等の方法
でとりつけられた放熱翼板1aの円筒部4a上に、次いでと
りつけられた放熱翼板1bの円筒部4bが経時変化等で重な
りやすく、このようなことが起こると、放熱翼板間隔に
不同を生じて、円筒部4bを陽極筒体３に広い面積で密着
できなくなり、良好な放熱効果を得ることが困難にな
る。Problems to be Solved by the Invention By the way, in order to further reduce the size and weight of the magnetron device and reduce the cost, it is necessary to improve the air cooling efficiency. FIG. 4 shows the flow path of the forced air cooling air flow in the conventional magnetron device.
Since the forced air cooling airflow 2 flowing between the plates of the magnetron is largely divided into both sides in the vicinity of the anode cylinder 3 of the magnetron, it is difficult to efficiently cool the anode cylinder 3 having the highest temperature by air. was there. In the figure, 4 is a cylindrical portion for piercing the anode cylinder of the heat dissipation vane 1, and 5 is a side wall of the frame yoke. Moreover, in the conventional magnetron device, the fifth
As shown in the figure, the cylindrical portion 4a of the heat radiating blade 1a attached by press fitting or the like on the outer peripheral surface of the anode cylinder 3 and the cylindrical portion 4b of the heat radiating blade 1b subsequently attached change with time. When such a situation occurs, the gap between the heat radiating vanes becomes inconsistent, and the cylindrical portion 4b cannot be adhered to the anode cylinder 3 in a large area, so that it becomes difficult to obtain a good heat radiating effect.
問題点を解決するための手段 本発明のマグネトロン装置は、マグネトロンの陽極筒体
の外周面にとりつけられたラジエータが、強制空冷用気
流の流通路を介して多段に配設された水平翼部と、この
水平翼部同士を橋絡して前記気流の流通路を中央領域お
よび両端領域に分断する一対の垂直翼部とを有し、前記
水平翼部の中央領域に前記陽極筒体を貫通させる円筒部
が形成され、前記水平翼部と前記垂直翼部とが一体形成
されており、前記中央領域における水平翼部部分および
前記円筒部は、前記両側領域における水平翼部部分に比
べて大きい板厚を有する。Means for Solving the Problems The magnetron device of the present invention has a radiator mounted on the outer peripheral surface of the anode cylinder of the magnetron, and horizontal blades arranged in multiple stages via the flow passage of the forced air cooling airflow. A pair of vertical blades that bridge the horizontal blades to divide the flow passage of the airflow into a central region and both end regions, and penetrate the anode cylinder in the central region of the horizontal blades. A cylindrical part is formed, the horizontal wing part and the vertical wing part are integrally formed, and the horizontal wing part part and the cylindrical part in the central region are larger than the horizontal wing part parts in the both side regions. Have a thickness.
作用 このような構成であるから、装置の動作時にもっとも高
温となる陽極部の熱容量が大となるのみならず、銅から
なる高価な陽極筒体の肉厚を小ならしめることもでき
る。また、異なる板厚を有するラジエータを主として押
し出し成型法によって能率よく製造できるとともに、ラ
ジエータの複数の円筒部に、円筒部の重なり合いのない
状態でマグネトロンを一挙に圧入でき、そのうえ、前記
円筒部が相互に重なり合うことがなくなるので、ラジエ
ータを陽極筒体に広い面積で密着させることができる。
さらに、ラジエータ内に入った強制空冷用気流は、マグ
ネトロンの陽極筒体の付近で両側方へ分流するものの、
左右一対の垂直翼部が隔壁として作用するがために前記
分流の偏向角が狭められ、陽極筒体の背面側へもよく回
り込むようになる。つまり、空冷用気流が陽極筒体およ
びその近傍のラジエータ部分により多く当たるようにな
り、それだけマグネトロンを効率よく空冷することがで
きる。Action With such a configuration, not only the heat capacity of the anode portion, which becomes the highest temperature during the operation of the apparatus, becomes large, but also the thickness of the expensive anode cylinder made of copper can be reduced. Further, radiators having different plate thicknesses can be efficiently manufactured mainly by an extrusion molding method, and at the same time, the magnetrons can be press-fitted into a plurality of cylindrical portions of the radiator without overlapping of the cylindrical portions. Since it does not overlap with each other, the radiator can be brought into close contact with the anode cylinder over a wide area.
Furthermore, although the forced air cooling airflow that has entered the radiator splits into both sides near the anode cylinder of the magnetron,
Since the pair of left and right vertical blades act as partition walls, the deflection angle of the shunt is narrowed, and the shunt flows well to the back side of the anode cylinder. That is, the airflow for air cooling comes into more contact with the anode cylinder and the radiator portion in the vicinity thereof, so that the magnetron can be efficiently air-cooled.
実施例 つぎに本発明を図面に示した実施例とともに詳しく説明
する。EXAMPLES Next, the present invention will be described in detail with reference to the examples shown in the drawings.
第１図において、マグネトロン６の陽極筒体の外周面に
とりつけられているラジエータ７は、アルミニウムまた
はその合金からなり、第２図に示すような断面形状を有
している。ラジエータ７の各水平翼部８は強制空冷用気
流の流通路を介して多段に配設されており、各水平翼部
８にはマグネトロン６の陽極筒体を貫通させるための円
筒部９が形成されている。また、水平翼部間には水平翼
部８を相互に橋絡する左右一対の垂直翼部10,10が一体
に設けられており、この垂直翼部10,10によって水平翼
部８の相互間隔が規制され、かつこの垂直翼部10,10は
強制空冷用気流の流通路を中央領域Ｃおよび両側領域
S1，S2に３分断している。そして、中央領域Ｃにおける
水平翼部部分に円筒部９が形成されているのであり、中
央領域Ｃにおける水平翼部部分、円筒部９および垂直翼
部10の各板厚は、両側領域S1，S2における水平翼部部分
の板厚よりも大となされている。In FIG. 1, the radiator 7 attached to the outer peripheral surface of the anode cylinder of the magnetron 6 is made of aluminum or its alloy and has a cross-sectional shape as shown in FIG. The horizontal blades 8 of the radiator 7 are arranged in multiple stages through the flow passage of the forced air cooling airflow, and each horizontal blade 8 is formed with a cylindrical portion 9 for penetrating the anode cylinder of the magnetron 6. Has been done. Further, a pair of left and right vertical wings 10, 10 bridging the horizontal wings 8 with each other are integrally provided between the horizontal wings, and the vertical wings 10, 10 provide a space between the horizontal wings 8. Is regulated, and the vertical blades 10 and 10 form a passage for the forced air cooling airflow in the central region C and both side regions.
It is divided into S 1 and S 2 . Further, the cylindrical portion 9 is formed in the horizontal blade portion in the central region C, and the plate thickness of each of the horizontal blade portion, the cylindrical portion 9 and the vertical blade portion 10 in the central region C is equal to both side regions S 1 , It is larger than the plate thickness of the horizontal wing part at S 2 .
円筒部９と垂直翼部10との最短間隔Ａは、円筒部９の外
径Ｂの10〜30％となされている。The shortest distance A between the cylindrical portion 9 and the vertical blade portion 10 is 10 to 30% of the outer diameter B of the cylindrical portion 9.
このようなラジエータ７は、押し出し成型によって形成
された長尺のものを所定寸度で切断したのち、円筒部９
をプレス加工で形成することによって比較的廉価に得る
ことができる。なお、マグネトロン６の一方の磁極部11
上には図外の円環状永久磁石が同軸的に積み重ねられ、
この磁石の外側磁極が枠状継鉄12を通じていま一つの環
状永久磁石13の外側磁極に磁気的に結合されるのであ
り、磁石13の内側磁極はマグネトロン６の他方の磁極部
に磁気的に結合される。Such a radiator 7 is obtained by cutting a long one formed by extrusion molding to a predetermined size, and then forming a cylindrical portion 9
Can be obtained at a relatively low cost by forming by pressing. In addition, one magnetic pole portion 11 of the magnetron 6
Ring-shaped permanent magnets (not shown) are stacked coaxially on the top,
The outer magnetic pole of this magnet is magnetically coupled to the outer magnetic pole of another annular permanent magnet 13 through the frame yoke 12, and the inner magnetic pole of the magnet 13 is magnetically coupled to the other magnetic pole portion of the magnetron 6. To be done.
第３図に示すように、ラジエータ７の水平翼部８間を流
通する強制空冷用気流14のうち、左右一対の垂直翼部1
0,10間たる中央領域Ｃに入ったものは、マグネトロン６
の陽極筒体の近傍で両側方へ分流するものの、一対の垂
直翼部10,10による隔壁作用のために両側方へ大きく偏
向されず、陽極筒体と垂直翼部10との間の狭小部を高密
度で進行したのちマグネトロンの背面側へ大きく向きを
変える。そのうえ、中央領域Ｃにおけるラジエータ部分
の板厚はとくに大きいので、マグネトロン６の陽極筒体
の全周およびその近傍のラジエータ部分をよりよく空冷
することができる。また、垂直翼部10と枠状継鉄12の側
壁との間たる両側領域S1，S2を流通する空冷用気流は垂
直翼部10に沿って直進し、この領域におけるラジエータ
部分も適度に空冷されるので、垂直翼部10による放熱面
積の拡大と相まって良好な放熱効果を得ることができ
る。As shown in FIG. 3, of the forced air cooling airflow 14 flowing between the horizontal blades 8 of the radiator 7, a pair of left and right vertical blades 1
The one that entered the central region C between 0 and 10 is the magnetron 6
Although it shunts to both sides in the vicinity of the anode cylinder, it is not largely deflected to both sides due to the partition wall action by the pair of vertical blades 10 and 10, and the narrow portion between the anode cylinder and the vertical blades 10. After advancing at high density, the direction is changed to the back side of the magnetron. Moreover, since the thickness of the radiator portion in the central region C is particularly large, the entire circumference of the anode cylinder of the magnetron 6 and the radiator portion in the vicinity thereof can be air-cooled better. Further, the air-cooling airflow flowing in the both side regions S 1 and S 2 between the vertical blade portion 10 and the side wall of the frame-shaped yoke 12 goes straight along the vertical blade portion 10, and the radiator portion in this region is also appropriate. Since it is air-cooled, a good heat dissipation effect can be obtained in combination with the expansion of the heat dissipation area by the vertical blade portion 10.
円筒部９と垂直翼部10との最短間隔Ａが円筒部９の外径
Ｂの10％未満であると、最短間隔Ａにおける空気抵抗が
増して、一対の垂直翼部10,10間に流入する空冷用気流
に減少をきたす。また、最短間隔Ａが外径Ｂの30％を越
えると、陽極筒体の背面側へ回り込む気流が減少してし
まう。If the shortest distance A between the cylindrical portion 9 and the vertical blade portion 10 is less than 10% of the outer diameter B of the cylindrical portion 9, the air resistance at the shortest distance A increases and the air flows between the pair of vertical blade portions 10, 10. A decrease in the air flow for air cooling. Further, if the shortest distance A exceeds 30% of the outer diameter B, the air flow that goes around to the back side of the anode cylinder will be reduced.
発明の効果 以上のように本発明によると、ラジエータに一対の垂直
翼部を付加して強制空冷用気流の流通路を少なくとも中
央領域および両側領域に分断し、中央領域における水平
翼部部分および同部分に形成された円筒部の各板厚を両
側領域における水平翼部部分の板厚よりも大となすだけ
の簡単な改造によって効率のよい空冷効果を得ることが
できるのであり、しかも、かかるラジエータは押し出し
成型とプレス加工とによって比較的安価に得ることがで
きる。そのうえ、陽極筒体にラジエータを圧入等の方法
でとりつける作業が簡素化されるのみならず、円筒部の
重なり合いもないという利点がある。As described above, according to the present invention, a pair of vertical blades is added to the radiator to divide the forced air cooling airflow passage into at least the central region and both side regions, and the horizontal blade portion in the central region and An efficient air-cooling effect can be obtained by a simple modification in which each plate thickness of the cylindrical portion formed in the portion is made larger than the plate thickness of the horizontal blade portions in both side regions, and moreover, such a radiator can be obtained. Can be obtained relatively inexpensively by extrusion and pressing. Moreover, there is an advantage that not only the work of attaching the radiator to the anode cylinder by a method such as press fitting is simplified, but also the cylindrical parts do not overlap.
第１図は本発明を実施したマグネトロン装置の一部破断
斜視図、第２図は同装置のラジエータの側断面図、第３
図は同装置の空冷用気流の流通路を示す平面図、第４図
は従来のマグネトロン装置の空冷用気流の流通路を示す
平面図、第５図は同装置の放熱翼板とりつけ部の側断面
図である。 ６……マグネトロン、７……ラジエータ、８……水平翼
部、９……円筒部、10……垂直翼部。FIG. 1 is a partially cutaway perspective view of a magnetron device embodying the present invention, FIG. 2 is a side sectional view of a radiator of the device, and FIG.
FIG. 4 is a plan view showing an air-cooling airflow passage of the device, FIG. 4 is a plan view showing an air-cooling airflow passage of a conventional magnetron device, and FIG. 5 is a side of a radiator blade mounting portion of the device. FIG. 6 ... Magnetron, 7 ... Radiator, 8 ... Horizontal blade, 9 ... Cylindrical portion, 10 ... Vertical blade.
Claims (1)
けられたラジエータが、強制空冷用気流の流通路を介し
て多段に配設された水平翼部と、この水平翼部同士を橋
絡して前記気流の流通路を中央領域および両端領域に分
断する一対の垂直翼部とを有し、前記水平翼部の中央領
域に前記陽極筒体を貫通させる円筒部が形成され、前記
水平翼部と前記垂直翼部とが一体形成されており、前記
中央領域における水平翼部部分および前記円筒部は、前
記両側領域における水平翼部部分に比べて大きい板厚を
有していることを特徴とするマグネトロン装置。1. A radiator attached to an outer peripheral surface of an anode cylinder of a magnetron, which has a plurality of horizontal blades arranged in multiple stages via a flow passage for forced air cooling, and bridges the horizontal blades with each other. And a pair of vertical blades that divide the flow passage of the airflow into a central region and both end regions, and a cylindrical portion that penetrates the anode cylinder is formed in the central region of the horizontal blades. And the vertical wing portion are integrally formed, and the horizontal wing portion portion and the cylindrical portion in the central region have a larger plate thickness than the horizontal wing portion portions in the both side regions. Magnetron device to do.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP241786A JPH0766745B2 (en) | 1986-01-09 | 1986-01-09 | Magnetron device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP241786A JPH0766745B2 (en) | 1986-01-09 | 1986-01-09 | Magnetron device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62160635A JPS62160635A (en) | 1987-07-16 |
| JPH0766745B2 true JPH0766745B2 (en) | 1995-07-19 |
Family
ID=11528672
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP241786A Expired - Fee Related JPH0766745B2 (en) | 1986-01-09 | 1986-01-09 | Magnetron device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0766745B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102828471B1 (en) * | 2015-09-22 | 2025-07-01 | 어플라이드 머티어리얼스, 인코포레이티드 | Magnetron having enhanced cooling characteristics |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5540683U (en) * | 1978-09-08 | 1980-03-15 |
-
1986
- 1986-01-09 JP JP241786A patent/JPH0766745B2/en not_active Expired - Fee Related
Non-Patent Citations (1)
| Title |
|---|
| 発明協会公開技報公技番号７９−１６０６号 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62160635A (en) | 1987-07-16 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |