WO2012120902A1 - Magnetron and device using microwaves - Google Patents

Magnetron and device using microwaves Download PDF

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Publication number
WO2012120902A1
WO2012120902A1 PCT/JP2012/001656 JP2012001656W WO2012120902A1 WO 2012120902 A1 WO2012120902 A1 WO 2012120902A1 JP 2012001656 W JP2012001656 W JP 2012001656W WO 2012120902 A1 WO2012120902 A1 WO 2012120902A1
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Prior art keywords
anode
magnetron
cylinder
vane
anode cylinder
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PCT/JP2012/001656
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French (fr)
Japanese (ja)
Inventor
悦扶 齋藤
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パナソニック株式会社
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Publication of WO2012120902A1 publication Critical patent/WO2012120902A1/en

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    • 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
    • H01J23/16—Circuit elements, having distributed capacitance and inductance, structurally associated with the tube and interacting with the discharge
    • H01J23/18—Resonators
    • H01J23/20—Cavity resonators; Adjustment or tuning thereof
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J25/00—Transit-time tubes, e.g. klystrons, travelling-wave tubes, magnetrons
    • H01J25/50—Magnetrons, i.e. tubes with a magnet system producing an H-field crossing the E-field
    • H01J25/52—Magnetrons, i.e. tubes with a magnet system producing an H-field crossing the E-field with an electron space having a shape that does not prevent any electron from moving completely around the cathode or guide electrode
    • H01J25/58—Magnetrons, i.e. tubes with a magnet system producing an H-field crossing the E-field with an electron space having a shape that does not prevent any electron from moving completely around the cathode or guide electrode having a number of resonators; having a composite resonator, e.g. a helix
    • H01J25/587—Multi-cavity magnetrons

Definitions

  • the present invention relates to a magnetron and a device using microwaves.
  • Patent Document 1 Description of the Related Art Conventionally, there has been known one prepared by a process in which a brazing material is disposed on an inner wall of an anode cylinder and a joining portion of each anode vane and heated at a high temperature to braze the anode vane in the anode cylinder (for example, see Patent Document 1).
  • positioning is performed by a large number of protrusions formed on the inner surface of the anode cylinder, and the protrusions are formed by half punching that presses the outer surface of the anode cylinder.
  • Patent Document 1 can maintain high accuracy of the mutual positional relationship of the anode vanes without using a positioning jig when brazing the anode cylinder.
  • a member that becomes a base of an anode cylinder is created by a drawing process, and then a number of half-projection protrusions for positioning purposes formed on the inner surface of the anode member are pressed, and then the cylinder The anode vane is brazed to the inner surface. Therefore, in Patent Document 1, the process until the anode vane is brazed to the inner surface of the anode cylinder is complicated, and the posture of the anode vane is unstable until the brazing is completed. Further, in Patent Document 1, the position of the anode vane may not be aligned. Therefore, in Patent Document 1, variation in oscillation efficiency may increase and noise may occur.
  • the present invention has been made to solve the above-described problems, and an object of the present invention is to provide a magnetron and a microwave utilization device capable of stabilizing the position accuracy of the anode vane and improving the quality.
  • a magnetron according to the present invention includes an anode cylinder in which a plurality of anode vanes are radially arranged on an inner wall surface, a top shell connected to the anode cylinder and housing an antenna connected to the anode vane, A cathode cylinder connected to the side opposite to the top shell in the anode cylinder, and a positioning portion provided on the inner surface of the anode cylinder for positioning the anode vanes.
  • the positioning portion is a step.
  • the magnetron according to the present invention includes a protrusion continuous in the circumferential direction of the inner surface of the anode cylinder, and the step is a surface orthogonal to the axis of the anode cylinder in the protrusion.
  • the above-described magnetron is mounted on the microwave utilization apparatus according to the present invention.
  • the positional accuracy of the anode vane can be stabilized and the quality can be improved.
  • Sectional drawing of the magnetron of the microwave utilization apparatus of one Embodiment which concerns on this invention Sectional drawing of the core tube of the magnetron of the microwave utilization apparatus of one Embodiment which concerns on this invention Sectional drawing of the attachment part of the anode vane of the magnetron of the microwave utilization apparatus of one Embodiment which concerns on this invention
  • a magnetron 10 is used for a microwave-utilizing device, and includes a yoke 12, an A-side magnet 13 and a K-side magnet arranged in the yoke 12. 14 and a cooling circuit 15 formed from a radiator 16 disposed in the yoke 12.
  • the magnetron 10 also includes an LC filter circuit 17 formed from a choke coil 18 and a capacitor 19, and a core tube 20.
  • the magnetron 10 is a continuous wave magnetron having an oscillation frequency of 2450 MHz.
  • the magnetic circuit 11 uses the A side magnet 13 and the K side magnet 14 (see FIG. 2) 21 of the A side magnet 13 and the K side magnetic pole of the K side magnet 14 (see FIG. 2). 2) to form an orthogonal electrostatic magnetic field that is effectively guided to the working space.
  • the A-side magnet 13 and the K-side magnet 14 are a permanent magnet system using a ferrite magnet, and are an internal magnetic circuit system.
  • the cooling circuit 15 has a function of preventing heat generation as an anode loss of the magnetron 10 and operates the magnetron 10 stably.
  • the radiator 16 is attached to the outer periphery of an anode (see FIG. 2) 23 that is an anode cylinder included in the core tube 20, and is forcibly cooled by wind sent by a fan (not shown).
  • a choke coil 18 and a capacitor 19 are accommodated in a filter case 24.
  • the cathode (see FIG. 2) 25 which is a cathode cylinder included in the core tube 20, is in the working space in the tube, the first lead wire 26 and the There is a possibility of leakage through the two lead wires 27. Therefore, the LC filter circuit 17 prevents unnecessary radio wave leakage.
  • the core tube 20 has a plurality of anode vanes 29 arranged radially on the inner wall surface of the anode body 28 of the anode 23.
  • the core tube 20 includes a top shell 31 that houses the antenna 30 connected to the anode vane 29, and a cathode 25 that is connected to the anode 23 on the side opposite to the top shell 31.
  • the core tube 20 is supported by the cathode 25 to hold the filament coil 32 at the center of each anode vane 29, and the second lead 27 is supported by the cathode 25 and connected to the anode 23.
  • the core tube 20 penetrates the insulating member 33 that seals the opposite side of the cathode 25 to the anode 23, and the first connecting terminal 34 and the second connecting terminal 33 connected to the first lead wire 26. And a second connection terminal 35 connected to the lead wire 27.
  • the core tube 20 includes an exhaust pipe 36 having electrical conductivity that penetrates the insulating member 33.
  • the top shell 31 includes an A side tube 37, an insulating ring 38, an exhaust pipe 39, a first A choke 40, and a second A choke 41.
  • the top shell 31 is combined with the anode 23 to emit high frequency energy to the outside through the antenna 30. Further, high frequency noise is suppressed by the first A choke 40 and the second A choke 41.
  • the top shell 31 is evacuated (gas discharged) by sealing and is covered with the antenna tube 42 after chip-off.
  • the anode 23 forms an LC circuit by arranging anode vanes 29 radially at equal intervals.
  • the anode 23 has an anode vane 29 connected to every other one by a large pressure equalizing ring 43 and a small pressure equalizing ring 44, and an A side magnetic pole 21 is attached to the upper part, and a K side magnetic pole 22 is attached to the lower part.
  • the anode vane 29 must maintain the same potential for the anode 23 in order for the magnetron 10 to oscillate stably.
  • the anode 23 has the same potential in terms of direct current and is integrated, but is a cavity resonator divided into ten in terms of high frequency.
  • An antenna 30 for guiding high frequency energy to the outside is joined to one anode vane 29 by brazing.
  • the A-side magnetic pole 21 and the K-side magnetic pole 22 have a function of effectively guiding the magnetic field into a working space that is a space between the inner surface of the anode vane 29 and the outer diameter of the filament coil 32 of the cathode 25.
  • a first lead wire 26 and a second lead wire 27 are accommodated via a support plate 46 in a K-side side tube 45 connected to the anode 23.
  • An A-side end hat 47 that supports the upper end portion of the filament coil 32 and a K-side end hat 48 that supports the lower end portion of the filament coil 32 are attached to the first lead wire 26.
  • the first lead wire 26 is inserted below the insulating member 33 through one lead wire insertion hole 49 provided in the insulating member 33, and the second lead wire 27 is insulated through the other lead wire insertion hole 50 provided in the insulating member 33. It is inserted below the member 33.
  • the anode 23 has a step 51 that is a positioning portion for positioning the plurality of anode vanes 29 on the inner wall surface of the anode body 28.
  • the anode body 28 includes a protrusion 52 continuous in the circumferential direction of its inner wall surface, and the step 51 is a surface orthogonal to the axis of the anode body 28 of the anode 23 in the protrusion 52.
  • the upper and lower inner diameters of the anode 23 are made equal across the protrusion 52, and the A-side magnetic pole 21 and the K-side magnetic pole 22 can be shared.
  • the anode vane 29 In attaching the anode vane 29, the anode vane 29 is pushed from the lower side of the axis of the anode main body 28 toward the protrusion 52 and proceeds.
  • the anode vane 29 is positioned by the step 51 of the anode body 28 and brazed to the anode body 28.
  • the posture of the anode vane does not become unstable until the brazing of the anode vane is completed, unlike the conventional one. Therefore, the positional accuracy of the anode vane 29 can be stabilized.
  • anode vane 29 is mechanically fixed to the step 51 by being pushed from the lower side of the axis of the anode main body 28 toward the protrusion 52, and thus the position of the anode vane 29 is not aligned. There is nothing. Therefore, variation in oscillation efficiency does not increase and noise does not occur.
  • the anode vane 29 is positioned at a predetermined position by the positioning unit. Therefore, according to the magnetron 10 and the microwave utilization apparatus of one embodiment, it is not necessary to perform a complicated brazing process unlike the conventional one, and the attitude of the anode vane 29 until the brazing is completed. Does not become unstable. Therefore, according to the magnetron 10 and the microwave utilization device of the embodiment, the positional accuracy of the anode vane 29 can be stabilized.
  • the anode body 28 can be easily formed by a minimum change to the conventional anode body 28. .
  • the anode vane 29 is pushed toward the projecting portion 52 from below the axis of the anode body 28, thereby causing a step in the anode body 28. 51 is fixed mechanically. Therefore, according to the magnetron 10 and the microwave utilization device of the embodiment, since the position of the anode vane 29 does not become uniform, variation in oscillation efficiency does not increase and noise is not generated. Can be improved.
  • the yoke, radiator, LC filter circuit and the like are not limited to the above-described embodiment, and appropriate modifications and improvements can be made.
  • the position accuracy of the anode vane can be stabilized and the quality can be improved.

Abstract

A magnetron (10) is provided with an anode cylinder (23) in which a plurality of anode vanes (29) are disposed in a radial shape on an inside wall surface, a top shell (31) that is connected to the anode cylinder (23) and houses an antenna (30) connected to the anode vanes (29), a cathode cylinder (25) on the side of the anode cylinder (23) opposite to the top shell (31), and positioning parts (51) that position each of the anode vanes (29) provided on the inside surface of the anode cylinder (23).

Description

マグネトロンおよびマイクロ波利用機器Magnetron and microwave equipment
　本発明は、マグネトロンおよびマイクロ波利用機器に関する。 The present invention relates to a magnetron and a device using microwaves.
　従来より、陽極筒体の内壁および各アノードベインの被接合個所上にろう材を配置し、高温加熱して陽極筒体内のアノードベインをろう付けする工程により作成されたものが知られている（例えば、特許文献１参照）。
　特許文献１は、陽極筒体の内面に形成した多数の突部により位置決めされ、突部は陽極筒体の外面にプレス加工を施す半抜きにより形成される。 2. Description of the Related Art Conventionally, there has been known one prepared by a process in which a brazing material is disposed on an inner wall of an anode cylinder and a joining portion of each anode vane and heated at a high temperature to braze the anode vane in the anode cylinder ( For example, see Patent Document 1).
In Patent Document 1, positioning is performed by a large number of protrusions formed on the inner surface of the anode cylinder, and the protrusions are formed by half punching that presses the outer surface of the anode cylinder.
日本国特許第２５３８８６４号公報（図１０、請求項２）Japanese Patent No. 2,538,864 (FIG. 10, claim 2)
　特許文献１は、陽極筒体のろう付けする時に位置決め用治具を使用することなくアノードベインの相互位置関係の精度を高く維持できる。
　しかし、特許文献１は、引き抜き工程により陽極筒体の基になる部材を作成し、次いで、陽極用部材の内面に形成した多数の位置決め目的の半抜き突部をプレス加工し、その後に筒体状に成形し、内面にアノードベインがろう付けされる。
　従って、特許文献１は、陽極筒体の内面にアノードベインをろう付けするまでの工程が煩雑であり、かつ、ろう付けが完了するまでの間においてアノードベインの姿勢が不安定である。
　また、特許文献１は、アノードベインの位置が揃わなくなることがありうる。
　従って、特許文献１は、発振効率のばらつきが大きくなることがありうるとともに、ノイズが発生することがありうる。 Patent Document 1 can maintain high accuracy of the mutual positional relationship of the anode vanes without using a positioning jig when brazing the anode cylinder.
However, in Patent Document 1, a member that becomes a base of an anode cylinder is created by a drawing process, and then a number of half-projection protrusions for positioning purposes formed on the inner surface of the anode member are pressed, and then the cylinder The anode vane is brazed to the inner surface.
Therefore, in Patent Document 1, the process until the anode vane is brazed to the inner surface of the anode cylinder is complicated, and the posture of the anode vane is unstable until the brazing is completed.
Further, in Patent Document 1, the position of the anode vane may not be aligned.
Therefore, in Patent Document 1, variation in oscillation efficiency may increase and noise may occur.
　本発明は、前述した課題を解決するためになされたものであり、その目的は、アノードベインの位置精度を安定にでき、品質を向上できるマグネトロンおよびマイクロ波利用機器を提供することにある。 The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a magnetron and a microwave utilization device capable of stabilizing the position accuracy of the anode vane and improving the quality.
　本発明に係るマグネトロンは、内壁面に複数のアノードベインが放射状に配設された陽極筒体と、前記陽極筒体に連結され、前記アノードベインに接続されたアンテナを収容するトップシェルと、前記陽極筒体における前記トップシェルとは反対側に連結される陰極筒体と、前記陽極筒体の内面に設けられて前記各アノードベインを位置決めする位置決め部とを備える。 A magnetron according to the present invention includes an anode cylinder in which a plurality of anode vanes are radially arranged on an inner wall surface, a top shell connected to the anode cylinder and housing an antenna connected to the anode vane, A cathode cylinder connected to the side opposite to the top shell in the anode cylinder, and a positioning portion provided on the inner surface of the anode cylinder for positioning the anode vanes.
　本発明に係るマグネトロンは、前記位置決め部が段差である。 In the magnetron according to the present invention, the positioning portion is a step.
　本発明に係るマグネトロンは、前記陽極筒体における内面の周方向に連続する突部を備え、前記段差が、前記突部における前記陽極筒体の軸線に対して直交する面である。 The magnetron according to the present invention includes a protrusion continuous in the circumferential direction of the inner surface of the anode cylinder, and the step is a surface orthogonal to the axis of the anode cylinder in the protrusion.
　また、本発明に係るマイクロ波利用機器は、前述したマグネトロンが搭載されている。 Moreover, the above-described magnetron is mounted on the microwave utilization apparatus according to the present invention.
　本発明に係るマグネトロンおよびマイクロ波利用機器によれば、アノードベインの位置精度を安定にでき、品質を向上できるという効果を奏する。 According to the magnetron and the microwave using device according to the present invention, the positional accuracy of the anode vane can be stabilized and the quality can be improved.
本発明に係る一実施形態のマイクロ波利用機器のマグネトロンの断面図Sectional drawing of the magnetron of the microwave utilization apparatus of one Embodiment which concerns on this invention 本発明に係る一実施形態のマイクロ波利用機器のマグネトロンのコアチューブの断面図Sectional drawing of the core tube of the magnetron of the microwave utilization apparatus of one Embodiment which concerns on this invention 本発明に係る一実施形態のマイクロ波利用機器のマグネトロンのアノードベインの取付部分の断面図Sectional drawing of the attachment part of the anode vane of the magnetron of the microwave utilization apparatus of one Embodiment which concerns on this invention
　以下、本発明に係る一実施形態のマグネトロンおよびマイクロ波利用機器について図面を参照して説明する。
　図１に示すように、本発明に係る一実施形態のマグネトロン１０は、マイクロ波利用機器に用いられるものであり、継鉄１２と継鉄１２内に配置されるＡ側磁石１３およびＫ側磁石１４とから形成される磁気回路１１と、継鉄１２内に配置されるラジエター１６から形成される冷却回路１５とを備える。
　また、マグネトロン１０は、チョークコイル１８とコンデンサ１９とから形成されるＬＣフィルター回路１７と、コアチューブ２０とを備える。
　マグネトロン１０は、２４５０ＭＨｚの発振周波数を有する連続波マグネトロンである。 Hereinafter, a magnetron and a microwave utilization device according to an embodiment of the present invention will be described with reference to the drawings.
As shown in FIG. 1, a magnetron 10 according to an embodiment of the present invention is used for a microwave-utilizing device, and includes a yoke 12, an A-side magnet 13 and a K-side magnet arranged in the yoke 12. 14 and a cooling circuit 15 formed from a radiator 16 disposed in the yoke 12.
The magnetron 10 also includes an LC filter circuit 17 formed from a choke coil 18 and a capacitor 19, and a core tube 20.
The magnetron 10 is a continuous wave magnetron having an oscillation frequency of 2450 MHz.
　磁気回路１１は、上下に配置されたＡ側磁石１３とＫ側磁石１４とにより作られる磁束を、Ａ側磁石１３のＡ側磁極（図２参照）２１とＫ側磁石１４のＫ側磁極（図２参照）２２とにより集束し、作用空間に有効に導く直交静電磁界を形成している。
　Ａ側磁石１３およびＫ側磁石１４は、フェライト磁石による永久磁石方式であり、内磁回路方式になっている。 The magnetic circuit 11 uses the A side magnet 13 and the K side magnet 14 (see FIG. 2) 21 of the A side magnet 13 and the K side magnetic pole of the K side magnet 14 (see FIG. 2). 2) to form an orthogonal electrostatic magnetic field that is effectively guided to the working space.
The A-side magnet 13 and the K-side magnet 14 are a permanent magnet system using a ferrite magnet, and are an internal magnetic circuit system.
　冷却回路１５は、マグネトロン１０の陽極損失としての発熱を防止する機能を有し、マグネトロン１０を安定的に動作させる。
　冷却回路１５は、ラジエター１６が、コアチューブ２０に有する陽極筒体であるアノード（図２参照）２３の外周に取り付けてられており、不図示のファンにより送られる風により強制冷却される。 The cooling circuit 15 has a function of preventing heat generation as an anode loss of the magnetron 10 and operates the magnetron 10 stably.
In the cooling circuit 15, the radiator 16 is attached to the outer periphery of an anode (see FIG. 2) 23 that is an anode cylinder included in the core tube 20, and is forcibly cooled by wind sent by a fan (not shown).
　ＬＣフィルター回路１７は、フィルターケース２４内にチョークコイル１８とコンデンサ１９とが収容される。
　ＬＣフィルター回路１７では、コアチューブ２０に有する陰極筒体であるカソード（図２参照）２５が管内の作用空間にあるために、高周波エネルギーの一部がカソード２５に有する第１リード線２６および第２リード線２７を伝わって漏洩することがありうる。
　そのため、ＬＣフィルター回路１７は、不要な電波の漏洩を防ぐ。 In the LC filter circuit 17, a choke coil 18 and a capacitor 19 are accommodated in a filter case 24.
In the LC filter circuit 17, since the cathode (see FIG. 2) 25, which is a cathode cylinder included in the core tube 20, is in the working space in the tube, the first lead wire 26 and the There is a possibility of leakage through the two lead wires 27.
Therefore, the LC filter circuit 17 prevents unnecessary radio wave leakage.
　図２に示すように、コアチューブ２０は、アノード２３のアノード本体２８の内壁面に複数のアノードベイン２９が放射状に配設されている。
　また、コアチューブ２０は、アノードベイン２９に接続されたアンテナ３０を収容するトップシェル３１と、アノード２３におけるトップシェル３１とは反対側に連結されるカソード２５とを備える。 As shown in FIG. 2, the core tube 20 has a plurality of anode vanes 29 arranged radially on the inner wall surface of the anode body 28 of the anode 23.
The core tube 20 includes a top shell 31 that houses the antenna 30 connected to the anode vane 29, and a cathode 25 that is connected to the anode 23 on the side opposite to the top shell 31.
　そして、コアチューブ２０は、カソード２５に支持されて各アノードベイン２９の中央にフィラメントコイル３２を保持する第１リード線２６と、カソード２５に支持されてアノード２３に接続される第２リード線２７とを備える。
　さらに、コアチューブ２０は、カソード２５におけるアノード２３とは反対側を封止する絶縁部材３３と、絶縁部材３３を貫通するとともに、第１リード線２６に接続される第１接続端子３４および第２リード線２７に接続される第２接続端子３５とを備える。
　さらにまた、コアチューブ２０は、絶縁部材３３を貫通する導通性を有する排気管３６を備える。 The core tube 20 is supported by the cathode 25 to hold the filament coil 32 at the center of each anode vane 29, and the second lead 27 is supported by the cathode 25 and connected to the anode 23. With.
Furthermore, the core tube 20 penetrates the insulating member 33 that seals the opposite side of the cathode 25 to the anode 23, and the first connecting terminal 34 and the second connecting terminal 33 connected to the first lead wire 26. And a second connection terminal 35 connected to the lead wire 27.
Furthermore, the core tube 20 includes an exhaust pipe 36 having electrical conductivity that penetrates the insulating member 33.
　トップシェル３１は、Ａ側の側管３７と、絶縁リング３８と、排気管３９と、第１Ａチョーク４０と、第２Ａチョーク４１とから構成される。
　トップシェル３１は、アノード２３と組み合わされることにより、アンテナ３０を通じて高周波エネルギーを外部へ放出する。また、第１Ａチョーク４０および第２Ａチョーク４１より高周波ノイズを抑制する。
　トップシェル３１は、封止切りにより排気（ガスだし）されてチップオフ後にアンテナ筒４２が被せられる。 The top shell 31 includes an A side tube 37, an insulating ring 38, an exhaust pipe 39, a first A choke 40, and a second A choke 41.
The top shell 31 is combined with the anode 23 to emit high frequency energy to the outside through the antenna 30. Further, high frequency noise is suppressed by the first A choke 40 and the second A choke 41.
The top shell 31 is evacuated (gas discharged) by sealing and is covered with the antenna tube 42 after chip-off.
　アノード２３は、アノードベイン２９を等間隔で放射状に配列させることによりＬＣ回路を形成している。
　アノード２３は、大均圧リング４３および小均圧リング４４により、１枚おきにアノードベイン２９をつないで上部にＡ側磁極２１を取り付けているとともに、下部にＫ側磁極２２を取り付けている。
　アノード２３は、マグネトロン１０が安定して発振するために、アノードベイン２９が同じ電位を保たなければならない。
　アノード２３は、直流的に同電位であり、一体であるが、高周波的には１０分割された空洞共振器になっている。
　そして、１枚のアノードベイン２９に高周波エネルギーを外部へ導き出すためのアンテナ３０がろう付けにより接合されている。
　Ａ側磁極２１およびＫ側磁極２２は、磁界を、アノードベイン２９の内面とカソード２５のフィラメントコイル３２の外径との間の空間である作用空間内へ有効に磁束を導く機能を有する。 The anode 23 forms an LC circuit by arranging anode vanes 29 radially at equal intervals.
The anode 23 has an anode vane 29 connected to every other one by a large pressure equalizing ring 43 and a small pressure equalizing ring 44, and an A side magnetic pole 21 is attached to the upper part, and a K side magnetic pole 22 is attached to the lower part.
The anode vane 29 must maintain the same potential for the anode 23 in order for the magnetron 10 to oscillate stably.
The anode 23 has the same potential in terms of direct current and is integrated, but is a cavity resonator divided into ten in terms of high frequency.
An antenna 30 for guiding high frequency energy to the outside is joined to one anode vane 29 by brazing.
The A-side magnetic pole 21 and the K-side magnetic pole 22 have a function of effectively guiding the magnetic field into a working space that is a space between the inner surface of the anode vane 29 and the outer diameter of the filament coil 32 of the cathode 25.
　カソード２５は、アノード２３に接続されるＫ側の側管４５内に、第１リード線２６および第２リード線２７が支持板４６を介して収容されている。
　第１リード線２６には、フィラメントコイル３２の上端部を支えるＡ側エンドハット４７と、フィラメントコイル３２の下端部を支えるＫ側エンドハット４８とが取り付けられている。
　第１リード線２６は、絶縁部材３３に有する一方のリード線挿通孔４９を通じて絶縁部材３３の下方へ挿入され、第２リード線２７は、絶縁部材３３に有する他方のリード線挿通孔５０を通じて絶縁部材３３の下方へ挿入される。 In the cathode 25, a first lead wire 26 and a second lead wire 27 are accommodated via a support plate 46 in a K-side side tube 45 connected to the anode 23.
An A-side end hat 47 that supports the upper end portion of the filament coil 32 and a K-side end hat 48 that supports the lower end portion of the filament coil 32 are attached to the first lead wire 26.
The first lead wire 26 is inserted below the insulating member 33 through one lead wire insertion hole 49 provided in the insulating member 33, and the second lead wire 27 is insulated through the other lead wire insertion hole 50 provided in the insulating member 33. It is inserted below the member 33.
　図３に示すように、アノード２３は、アノード本体２８の内壁面に、複数のアノードベイン２９を位置決めするための位置決め部である段差５１が形成されている。
　アノード本体２８は、その内壁面の周方向に連続する突部５２を備え、段差５１が、突部５２におけるアノード２３のアノード本体２８の軸線に対して直交する面である。そして、突部５２を挟んで、アノード２３の上下の内径寸法は等しくされており、Ａ側磁極２１およびＫ側磁極２２の部品共用化ができるように構成されている。 As shown in FIG. 3, the anode 23 has a step 51 that is a positioning portion for positioning the plurality of anode vanes 29 on the inner wall surface of the anode body 28.
The anode body 28 includes a protrusion 52 continuous in the circumferential direction of its inner wall surface, and the step 51 is a surface orthogonal to the axis of the anode body 28 of the anode 23 in the protrusion 52. The upper and lower inner diameters of the anode 23 are made equal across the protrusion 52, and the A-side magnetic pole 21 and the K-side magnetic pole 22 can be shared.
　アノードベイン２９の取り付けにあたり、アノードベイン２９がアノード本体２８の軸線の下方から突部５２に向けて押圧されて進行される。
　そして、アノードベイン２９がアノード本体２８の段差５１により位置決めされてアノード本体２８にろう付けされる。 In attaching the anode vane 29, the anode vane 29 is pushed from the lower side of the axis of the anode main body 28 toward the protrusion 52 and proceeds.
The anode vane 29 is positioned by the step 51 of the anode body 28 and brazed to the anode body 28.
　そのため、アノードベイン２９は、ろう付けの前に仮固定されているために、従来のもののように、アノードベインのろう付けが完了するまでの間においてアノードベインの姿勢が不安定にならない。
　従って、アノードベイン２９の位置精度を安定にできる。 Therefore, since the anode vane 29 is temporarily fixed before brazing, the posture of the anode vane does not become unstable until the brazing of the anode vane is completed, unlike the conventional one.
Therefore, the positional accuracy of the anode vane 29 can be stabilized.
　また、アノードベイン２９が、アノード本体２８の軸線の下方から突部５２に向けて押圧されて進行されることにより、段差５１に機械的に固定されるために、アノードベイン２９の位置が揃わなくなることがない。
　従って、発振効率のばらつきが大きくなることがなく、ノイズが発生しない。 Further, the anode vane 29 is mechanically fixed to the step 51 by being pushed from the lower side of the axis of the anode main body 28 toward the protrusion 52, and thus the position of the anode vane 29 is not aligned. There is nothing.
Therefore, variation in oscillation efficiency does not increase and noise does not occur.
　以上、説明したように一実施形態のマグネトロン１０およびマイクロ波利用機器によれば、位置決め部によりアノードベイン２９が所定の位置に位置決めされる。
　そのため、一実施形態のマグネトロン１０およびマイクロ波利用機器によれば、従来のもののように、煩雑なろう付けする工程を行う必要がないとともに、ろう付けが完了するまでの間においてアノードベイン２９の姿勢が不安定にならない。
　従って、一実施形態のマグネトロン１０およびマイクロ波利用機器によれば、アノードベイン２９の位置精度を安定にできる。 As described above, according to the magnetron 10 and the microwave utilization device of the embodiment, the anode vane 29 is positioned at a predetermined position by the positioning unit.
Therefore, according to the magnetron 10 and the microwave utilization apparatus of one embodiment, it is not necessary to perform a complicated brazing process unlike the conventional one, and the attitude of the anode vane 29 until the brazing is completed. Does not become unstable.
Therefore, according to the magnetron 10 and the microwave utilization device of the embodiment, the positional accuracy of the anode vane 29 can be stabilized.
　また、一実施形態のマグネトロン１０およびマイクロ波利用機器によれば、位置決め部が段差５１であるために、アノード本体２８の成形を、従来のアノード本体２８への最低限の変更により簡単に実施できる。 In addition, according to the magnetron 10 and the microwave utilization device of the embodiment, since the positioning portion is the step 51, the anode body 28 can be easily formed by a minimum change to the conventional anode body 28. .
　そして、一実施形態のマグネトロン１０およびマイクロ波利用機器によれば、アノードベイン２９が、アノード本体２８の軸線の下方から突部５２に向けて押圧されて進行されることにより、アノード本体２８の段差５１に機械的に固定される。
　従って、一実施形態のマグネトロン１０およびマイクロ波利用機器によれば、アノードベイン２９の位置が揃わなくなることがないために、発振効率のばらつきが大きくなることがなく、ノイズの発生がないので、品質を向上できる。 Then, according to the magnetron 10 and the microwave utilization device of the embodiment, the anode vane 29 is pushed toward the projecting portion 52 from below the axis of the anode body 28, thereby causing a step in the anode body 28. 51 is fixed mechanically.
Therefore, according to the magnetron 10 and the microwave utilization device of the embodiment, since the position of the anode vane 29 does not become uniform, variation in oscillation efficiency does not increase and noise is not generated. Can be improved.
　なお、本発明のマグネトロンおよびマイクロ波利用機器において継鉄、ラジエター、ＬＣフィルター回路等は、前述した一実施形態に限定されるものでなく、適宜な変形や改良等が可能である。 In addition, in the magnetron and microwave utilization apparatus of the present invention, the yoke, radiator, LC filter circuit and the like are not limited to the above-described embodiment, and appropriate modifications and improvements can be made.
　本出願は、2011年3月10日出願の日本国特許出願（特願2011-053204）に基づくものであり、それらの内容はここに参照として取り込まれる。 This application is based on a Japanese patent application filed on March 10, 2011 (Japanese Patent Application No. 2011-053204), the contents of which are incorporated herein by reference.
　以上述べたように、本発明のマグネトロンおよびマイクロ波利用機器によれば、アノードベインの位置精度を安定にでき、品質を向上できるものである。
　以上の結果として、マグネトロンおよびマイクロ波利用機器の品質を向上でき、市場に対して高品質な製品を安定的に供給でき、本発明の産業上の利用可能性は大といえる。 As described above, according to the magnetron and microwave utilization apparatus of the present invention, the position accuracy of the anode vane can be stabilized and the quality can be improved.
As a result of the above, it is possible to improve the quality of the magnetron and the microwave utilization equipment, to stably supply high-quality products to the market, and the industrial applicability of the present invention is great.
　１０　マグネトロン
　２３　アノード（陽極筒体）
　２５　カソード（陰極筒体）
　２９　アノードベイン
　３０　アンテナ
　３１　トップシェル
　５１　段差（位置決め部）
　５２　突部 10 Magnetron 23 Anode (Anode tube)
25 Cathode (cathode cylinder)
29 Anode vane 30 Antenna 31 Top shell 51 Step (positioning part)
52 Projection

Claims (4)

  1. 　内壁面に複数のアノードベインが放射状に配設された陽極筒体と、
    　前記陽極筒体に連結され、前記アノードベインに接続されたアンテナを収容するトップシェルと、
    　前記陽極筒体における前記トップシェルとは反対側に連結される陰極筒体と、
    　前記陽極筒体の内面に設けられて前記各アノードベインを陽極筒体の軸線に対し、位置決めする位置決め部とを備えるマグネトロン。     An anode cylinder in which a plurality of anode vanes are radially arranged on the inner wall surface;
    A top shell for receiving an antenna connected to the anode cylinder and connected to the anode vane;
    A cathode cylinder connected to the side opposite to the top shell in the anode cylinder;
    A magnetron comprising a positioning portion provided on an inner surface of the anode cylinder and positioning the anode vanes with respect to an axis of the anode cylinder.
  2. 　請求項１に記載のマグネトロンにおいて、
    　前記位置決め部が段差であるマグネトロン。     The magnetron according to claim 1, wherein
    A magnetron in which the positioning part is a step.
  3. 　請求項２に記載のマグネトロンにおいて、
    　前記陽極筒体における内面の周方向に連続する突部を備え、
    　前記段差が、前記突部における前記陽極筒体の軸線に対して直交する面であるマグネトロン。     The magnetron according to claim 2, wherein
    Protruding continuous in the circumferential direction of the inner surface of the anode cylinder,
    The magnetron, wherein the step is a surface orthogonal to the axis of the anode cylinder in the protrusion.
  4. 　請求項１ないし請求項３のうちのいずれか１項に記載のマグネトロンが搭載されたマイクロ波利用機器。 A microwave device equipped with the magnetron according to any one of claims 1 to 3.
PCT/JP2012/001656 2011-03-10 2012-03-09 Magnetron and device using microwaves WO2012120902A1 (en)

Applications Claiming Priority (2)

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JP2011-053204 2011-03-10
JP2011053204A JP2012190649A (en) 2011-03-10 2011-03-10 Magnetron and microwave utilization apparatus

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6261243A (en) * 1985-09-09 1987-03-17 Toshiba Corp Magnetron anode body structure and manufacture thereof
JPS63143721A (en) * 1986-12-04 1988-06-16 Toshiba Corp Manufacture of magnetron anode
JPS63226850A (en) * 1987-03-16 1988-09-21 Matsushita Electric Ind Co Ltd Magnetron
JPH01251540A (en) * 1988-03-31 1989-10-06 Toshiba Corp Magnetron for microwave oven
JP2001060440A (en) * 1999-08-20 2001-03-06 Sanyo Electric Co Ltd Magnetron

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6261243A (en) * 1985-09-09 1987-03-17 Toshiba Corp Magnetron anode body structure and manufacture thereof
JPS63143721A (en) * 1986-12-04 1988-06-16 Toshiba Corp Manufacture of magnetron anode
JPS63226850A (en) * 1987-03-16 1988-09-21 Matsushita Electric Ind Co Ltd Magnetron
JPH01251540A (en) * 1988-03-31 1989-10-06 Toshiba Corp Magnetron for microwave oven
JP2001060440A (en) * 1999-08-20 2001-03-06 Sanyo Electric Co Ltd Magnetron

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