JPH01298627A - Magnetron - Google Patents

Magnetron

Info

Publication number
JPH01298627A
JPH01298627A JP12905888A JP12905888A JPH01298627A JP H01298627 A JPH01298627 A JP H01298627A JP 12905888 A JP12905888 A JP 12905888A JP 12905888 A JP12905888 A JP 12905888A JP H01298627 A JPH01298627 A JP H01298627A
Authority
JP
Japan
Prior art keywords
insulator
metal
magnetron
sealing
airtightly sealed
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.)
Pending
Application number
JP12905888A
Other languages
Japanese (ja)
Inventor
Kunitada Tsuboi
坪井 国忠
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sanyo Electric Co Ltd
Original Assignee
Sanyo Electric Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Sanyo Electric Co Ltd filed Critical Sanyo Electric Co Ltd
Priority to JP12905888A priority Critical patent/JPH01298627A/en
Publication of JPH01298627A publication Critical patent/JPH01298627A/en
Pending legal-status Critical Current

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  • Microwave Tubes (AREA)

Abstract

PURPOSE:To be small-sized and facilitate mounting and dismounting by arranging a tubular insulator inside a bulging part of a sealing metal of an anode substance, while airtightly sealing one end of this insulator to a sealing metal and the other end to a cup-shaped metal going through the insulator. CONSTITUTION:An opening edge of a bulging part 14a of a sealing metal is bent toward an anode substance 1 for being airtightly sealed to a tubular insulator 15 with a bent part 14b. The other end of the insulator 15 is airtightly sealed to a large diameter part 16b of a fixed metal 16 going through an insulator 15. One end of an exhaust tube 17 is airtightly sealed to a small diameter part 16c of the fixed metal 16, while the other end is outwardly extended going through the insulator 15. Then, after exhausting an anode substance 1, a cup- shaped metal is formed while being cut together with an antenna conductor 7 and airtightly sealed for being covered with a protective cap 18. Thereby, a projection amount of an output part can be reduced while a magnetron can be small-sized and mounting an dismounting on an electron range is facilitated.

Description

【発明の詳細な説明】 (イ)産業上の利用分野 本発明はマグネトロンに係わシ、特に出力部の改良に関
する。
DETAILED DESCRIPTION OF THE INVENTION (a) Field of Industrial Application The present invention relates to magnetrons, and particularly relates to improvements in the output section.

(ロ)従来の技術 従来、例えば特公昭62−26156号公報に示される
マグネトロンが知られている。この構成を第4図に基づ
き説明すると、は1は筒状陽極体で、内周面から中心に
向って複数のベイン(2)を設け、このベイン(2)に
よシ共振空胴を形成している。
(b) Prior Art Conventionally, for example, a magnetron disclosed in Japanese Patent Publication No. 62-26156 has been known. To explain this configuration based on Fig. 4, 1 is a cylindrical anode body, and a plurality of vanes (2) are provided from the inner peripheral surface toward the center, and a resonant cavity is formed by the vanes (2). are doing.

(3)はベイン(2)先端で囲まれる空間に配設した陰
極構体、(4)は陽極体はJの一方の開口縁に固着され
た磁極片、(5)は外周縁を歯極体filの一方の開口
縁に気密封着した封着金属で、中央部公金外方に向って
膨出形成すると共に、該膨出部(5a)に開口を形成し
ている。(6)は下端を封着金属(5)の膨出部(5a
)に気密封着した円筒状絶縁体、(7)は一端がベイン
]2)に送気的に接続され之アンテナ導体で、他端は磁
極片(4)、封着金属(5)及び絶縁体(6)を貫通し
て外方へ延設されている。(81は下端を絶縁体(6)
の上端に気密封着した排気管で、アンテナ導体(7)と
共に切断して封着される。(9)は切断された排気管(
8)を覆う保護キャップ、(11)は陽極体(1)外周
面に嵌着される放熱体で、複数の放熱板(10a)を積
層して形成される。ttUは永久磁石、σ2は枠状継鉄
、 t131はガスケットである。
(3) is a cathode structure arranged in the space surrounded by the tip of the vane (2), (4) is an anode body is a magnetic pole piece fixed to one opening edge of J, and (5) is a toothed pole body with the outer periphery. A sealing metal hermetically sealed to one edge of the opening of the fil bulges outward from the central part of the public metal, and an opening is formed in the bulge (5a). (6) is a bulge part (5a) of the sealing metal (5) at the lower end.
) with a cylindrical insulator hermetically sealed to the vane (7), the antenna conductor (7) is connected in air to the vane (2) at one end, and the other end is the pole piece (4), the sealing metal (5) and the insulation. It extends outwardly through the body (6). (81 is an insulator at the bottom end (6)
The exhaust pipe is hermetically sealed to the upper end of the antenna conductor (7) and is then cut and sealed together with the antenna conductor (7). (9) shows the cut exhaust pipe (
8), and (11) is a heat dissipation body fitted to the outer peripheral surface of the anode body (1), which is formed by laminating a plurality of heat dissipation plates (10a). ttU is a permanent magnet, σ2 is a frame-shaped yoke, and t131 is a gasket.

以上の構成では、封着金M(5)、絶縁体(6)及び排
気管(8)が順次積層されているため、出力部の突出量
、即ち、枠状継鉄1z上面から金属キャップ(9)上端
′までの長さが長くなシ、マグネトロンが犬型化する欠
点があった。また、出力部の突出量が大きいため、マグ
ネトロンの゛電子レンジへの着脱作業時、マグネトロン
の移動方向に大きなスペースが必要となり、1子レンジ
の成子部品の配置が困難となる等の欠点があった。
In the above configuration, since the sealing metal M (5), the insulator (6), and the exhaust pipe (8) are sequentially laminated, the amount of protrusion of the output part, that is, the amount of the metal cap ( 9) The length to the upper end was long, and the magnetron had the disadvantage of becoming dog-shaped. In addition, since the output part protrudes large, a large space is required in the direction of movement of the magnetron when attaching and detaching the magnetron to the microwave oven, which has disadvantages such as making it difficult to arrange the components of a single-electronic microwave oven. Ta.

(ハ)発明が解決しようとする課題 本発明は上記欠点に謹みなされたもので、出力部の突出
量を小さくできるマグネトロンを提供することを課題と
する。
(c) Problems to be Solved by the Invention The present invention has been made in consideration of the above-mentioned drawbacks, and an object of the present invention is to provide a magnetron in which the amount of protrusion of the output portion can be reduced.

に)課題を解決するための手段 上記課題を解決するため、封着金属の膨出部内に筒状絶
縁体を配設し、この絶縁体の一端を封着金属の開口縁に
気密封着すると共に、絶縁体の他端は絶縁体を貫通する
カップ状金属の開口縁に気密封着する。
2) Means for solving the problem In order to solve the above problem, a cylindrical insulator is disposed within the bulge of the sealing metal, and one end of this insulator is hermetically sealed to the opening edge of the sealing metal. At the same time, the other end of the insulator is hermetically sealed to the opening edge of a cup-shaped metal penetrating the insulator.

(ホ)作 用 上述の如く溝底したから、出力部の突出量が少なくな夛
、マグネトロンが小型化する。また、マグネトロンの電
子レンジへの着脱作業時、マグネトロンをわずか動かす
だけで出力部を挿脱できる。
(E) Function Since the bottom of the groove is formed as described above, the amount of protrusion of the output portion is small, and the magnetron is made smaller. In addition, when attaching or detaching the magnetron to the microwave oven, the output section can be inserted or detached by simply moving the magnetron slightly.

(へ)実施例 本発明の一実施例をlX1図及び第2図に基づき以下に
詳述する(尚、従来と同一部品は同一符号を附して説明
を省略する)。
(F) Embodiment An embodiment of the present invention will be described below in detail with reference to FIGS.

σ舶は外周縁を筒状陽極体(1)の一方の開口縁に気密
封着した封着金属で、中央部を外方に向って膨出形成す
ると共に、該膨出部(14a)の中央を開口せしめ、開
口縁を陽極体(1)に向って折曲(14b)している。
The sigma is a sealing metal whose outer periphery is hermetically sealed to one opening edge of the cylindrical anode body (1), and the central part is formed to bulge outward, and the bulge (14a) The center is opened, and the opening edge is bent (14b) toward the anode body (1).

αSは前記膨出部(14a)内に配設された円筒状の絶
縁体で、上端を前記封着金属fi4)の折曲部(14b
)下端に気密封着している。
αS is a cylindrical insulator disposed within the bulge (14a), and its upper end is connected to the bent portion (14b) of the sealing metal fi4).
) The lower end is hermetically sealed.

tteは断面路り状に形成され、水平部(16a)を前
記絶縁体a9の他端に気密封着した固着金属で、大径部
(16b)の高さhを任意の高調波、本実施例では第5
高調波の周波数の1/4の長さに形成し、第5高調波の
漏洩を抑制している。tiDは一端を前記固着金属αe
の小径部(16c)に気密封着し、他端が前記絶縁体u
9を貫通して外方へ延設する排気管で、真空ポンプによ
ってこの排気管σnから陽極体は)内の空気を抜いた後
、アンテナ導体(7)と共に切断して気密封着され、カ
ップ状金属を形成している。1gJは前記カップ状金属
住′nを覆う金属保護キャップである。
The tte is a fixed metal whose horizontal part (16a) is hermetically sealed to the other end of the insulator a9, and the height h of the large diameter part (16b) is set to an arbitrary harmonic. In the example, the fifth
The length is set to 1/4 of the harmonic frequency to suppress leakage of the fifth harmonic. tiD has one end attached to the fixed metal αe.
The other end is hermetically sealed to the small diameter portion (16c) of the insulator u.
After removing the air inside the anode body from this exhaust pipe σn using a vacuum pump, the anode body is cut together with the antenna conductor (7) and hermetically sealed, and then the cup is sealed. It forms a shaped metal. 1 gJ is a metal protective cap that covers the cup-shaped metal housing.

19は前記陽極体(11外周に嵌合する放熱体で、−枚
の放熱性の良好な金属板を折曲して複数の放熱フィン(
19a)を積j−形成し、このフィン(19a)間には
陽極体11J外周に嵌合する孔の周縁に形成した立上片
(19b)によって所定の間隔が保持されている。
Reference numeral 19 denotes a heat dissipating body that fits on the outer periphery of the anode body (11), which is made by bending two metal plates with good heat dissipation properties to form a plurality of heat dissipating fins (
19a), and a predetermined distance is maintained between the fins (19a) by an upright piece (19b) formed at the periphery of a hole that fits into the outer periphery of the anode body 11J.

斯るマグネトロンは、出力部の突出部分、即ち、金属保
護キャップ住&の枠状継鉄112+より突出した部分を
′i電子レンジ導波’# −? a4理室内に挿入し、
枠状継鉄(1zに設けられたボルトにナツトを螺合して
取付けられる。
In such a magnetron, the protruding part of the output part, that is, the part protruding from the frame-shaped yoke 112+ of the metal protective cap, is used as a microwave waveguide. A4 Insert into the laboratory,
Frame-shaped yoke (attached by screwing nuts onto bolts provided at 1z).

枠状継鉄(1zから金属保護キャップα&先端までの長
さは第4図に示した従来に比べわずかなものであるから
、マグネトロン着脱操作時にはマグネトロンを少し移動
させるだけでよく、従って、電子レンジの電気部品の取
付空間を従来よシ大きく取ることかでき、″電気部品の
配置を容易にすることができる。
The length from the frame-shaped yoke (1z to the metal protective cap α & tip is shorter than the conventional one shown in Figure 4), so when attaching or detaching the magnetron, it is only necessary to move the magnetron a little. The installation space for electrical components can be taken up more than before, and the arrangement of electrical components can be made easier.

また、マグネトロン発振時発生する第5高調波は固着金
5(1Gの大径部(16b)により抑制され、更に、カ
ップ状金属αDの高さlを任意の高調波、本実施例では
第2高調波の周波数の1/4の長さに形成すれば、第2
高調波も抑制することができる。
Furthermore, the fifth harmonic generated during magnetron oscillation is suppressed by the large diameter portion (16b) of the fixed metal 5 (1G). If the length is 1/4 of the harmonic frequency, the second
Harmonics can also be suppressed.

尚、上記実施例では排気管171を切断してカップ状金
属を形成したが、排気管を別の部分に形成し、第6図(
a)乃至(e))に示す如ぐ有底筒状のカシプ状金1!
412Gを固着金属αGに封着してもよい。また、固着
金属U■は他の構造、例えば第5 Q (a)乃至(e
)の構造でもよい。
In the above embodiment, the exhaust pipe 171 was cut to form a cup-shaped metal, but the exhaust pipe was formed in a separate part, as shown in FIG.
Bottomed cylindrical cap-shaped gold 1 as shown in a) to (e))!
412G may be sealed to fixed metal αG. In addition, the fixed metal U
) structure is also acceptable.

(ト)発明の効果 以上の如く本発明に依れば、出力部の突出量を減少させ
ることができ、マグネトロンを小型化できると共に、マ
グネトロンの電子レンジへの着脱作業時の移動距離を減
少でき、電子レンジの電気部品の配置を容易ならしめる
ことができる等の効果を奏する。
(G) Effects of the Invention As described above, according to the present invention, it is possible to reduce the amount of protrusion of the output part, thereby making the magnetron more compact, and reducing the distance traveled when attaching and detaching the magnetron to a microwave oven. , it is possible to easily arrange the electric parts of the microwave oven, etc.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図は本発明一実施例の要部半断面図、第2図は放熱
体の斜視図、第6図(a)乃至(e)は各々他の実施例
の要部半断面図、第4図は従来例の要部半断面図である
。 (1)・・・筒状陽極体、 141・・・封着金属、(
14a)・・・膨出部、 蒔・・・絶縁体、171・・
・カップ状金属。
FIG. 1 is a half-sectional view of a main part of one embodiment of the present invention, FIG. 2 is a perspective view of a heat sink, and FIGS. 6(a) to (e) are half-sectional views of main parts of other embodiments. FIG. 4 is a half-sectional view of the main part of the conventional example. (1)...Cylindrical anode body, 141...Sealing metal, (
14a)...bulging part, sowing...insulator, 171...
・Cup-shaped metal.

Claims (1)

【特許請求の範囲】[Claims] (1)筒状陽極体の一方の開口縁に気密封着した封着金
属の中央部を膨出形成し、該膨出部内に配設した筒状絶
縁体の一端を前記封着金属の開口縁に気密封着すると共
に、前記絶縁体の他端は絶縁体を貫通せしめたカップ状
金属の開口縁に気密封着せしめてなるマグネトロン。
(1) The central part of the sealing metal hermetically sealed to one opening edge of the cylindrical anode body is formed into a bulge, and one end of the cylindrical insulator disposed within the bulge is inserted into the opening of the sealing metal. A magnetron in which the other end of the insulator is hermetically sealed to the edge of a cup-shaped metal opening passed through the insulator.
JP12905888A 1988-05-26 1988-05-26 Magnetron Pending JPH01298627A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12905888A JPH01298627A (en) 1988-05-26 1988-05-26 Magnetron

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12905888A JPH01298627A (en) 1988-05-26 1988-05-26 Magnetron

Publications (1)

Publication Number Publication Date
JPH01298627A true JPH01298627A (en) 1989-12-01

Family

ID=15000048

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12905888A Pending JPH01298627A (en) 1988-05-26 1988-05-26 Magnetron

Country Status (1)

Country Link
JP (1) JPH01298627A (en)

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