WO2010073564A1 - マグネトロン及びマイクロ波利用機器 - Google Patents
マグネトロン及びマイクロ波利用機器 Download PDFInfo
- Publication number
- WO2010073564A1 WO2010073564A1 PCT/JP2009/006994 JP2009006994W WO2010073564A1 WO 2010073564 A1 WO2010073564 A1 WO 2010073564A1 JP 2009006994 W JP2009006994 W JP 2009006994W WO 2010073564 A1 WO2010073564 A1 WO 2010073564A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- cylinder
- magnetron
- cathode
- flange portion
- side tube
- Prior art date
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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
- H01J23/14—Leading-in arrangements; Seals therefor
- H01J23/15—Means for preventing wave energy leakage structurally associated with tube leading-in arrangements, e.g. filters, chokes, attenuating devices
-
- 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
Definitions
- the present invention relates to a magnetron and a microwave using device, and more particularly to a magnetron used for a microwave using device such as a microwave oven.
- the core tube of the magnetron is coaxially adjusted by deforming the side tube on the cathode side, so when assembling the exterior of the magnetron by the construction method between the pole piece and the annular magnet, May come into contact with the shield cylinder and the adjusted coaxial may return to the state before adjustment.
- An object of the present invention is to provide a magnetron capable of performing an outer assembly operation of a magnetron while maintaining deformation of a side tube on the cathode side for coaxial adjustment of the cathode filament.
- the present invention includes an anode cylinder, a cathode side tube that is airtightly coupled to a lower portion of the anode cylinder, a cylindrical portion that extends in a substantially vertical direction, and a cylindrical portion that is connected to the cylindrical portion.
- a flange portion extending in a substantially horizontal direction over the circumference, and a bent portion obtained by bending a part of the flange portion toward the side tube on the cathode side, and the cathode side at the lower end portion of the anode cylinder
- a shield cylinder electrically coupled to the side tube of the magnetron.
- the bent portion is formed by bending a free end of the flange portion, which is a part of the flange portion, to the side tube side on the cathode side.
- the bent portion is formed by cutting a part of the flange portion into a substantially U shape and bending the cut portion of the flange portion toward the side tube on the cathode side.
- the microwave utilizing device of the present invention is equipped with the above magnetron.
- the outer assembly of the magnetron can be performed while maintaining the deformation of the side tube on the cathode side for the coaxial adjustment of the cathode filament.
- FIG. 1 The figure which shows the whole structure of the magnetron 1 of this Embodiment.
- A The top view which looked at the shield cylinder 16 from the top,
- FIG. 1 is a diagram illustrating an overall configuration of a magnetron 1 according to the present embodiment.
- the magnetron 1 according to the first embodiment includes a magnetic yoke 10, an anode cylinder 11, an output side pole piece 12 coupled to an upper end opening of the anode cylinder 11, and a lower end of the anode cylinder 11.
- the shield cylinder 16 which is one of the features of the present invention, is provided in the magnetic yoke 10 directly below the anode cylinder 11 and the side tube 15 on the cathode side hermetically coupled to the lower end opening of the anode cylinder 11. It is interposed between the annular magnets 18 arranged. As shown in FIG. 1, the shield cylinder 16 is interposed between the cathode side tube 15 and the annular magnet 18 to prevent electromagnetic waves generated inside the magnetron 1 from leaking outside the apparatus. Can do.
- the annular magnet 18 has a function of preventing breakage due to temperature rise and high temperature demagnetization.
- a spiral cathode filament 23 Inside the anode cylinder 11, a spiral cathode filament 23, a center lead 26 that supports the cathode filament 23, a plurality of anode vanes 19, and a single anode vane 19 from the central axis of the anode cylinder 11.
- an output antenna 20 extending upward along the line.
- the plurality of anode vanes 19 are arranged along the inner peripheral surface of the anode cylinder 11 at a predetermined interval.
- the output antenna 20 extends from one anode vane 19 toward the output side pole piece 12 coupled to the upper end opening of the anode cylinder 11, and is a hole formed in a part of the inclined wall of the output side pole piece 12. It further extends upward along the central axis of the anode cylinder 11 via 12a.
- the spiral cathode filament 23 extends from the upper end shield 24 to the lower end shield 25 along the central axis of the anode cylinder 11.
- One end of the cathode filament 23 is fixed to the upper end shield 24, and the other end of the cathode filament 23 is fixed to the lower end shield 25.
- the center lead 26 extends from the upper end shield 24 to a stem (not shown) inside the cathode filament 23. The center lead 26 is fixed to the upper end shield and supports the cathode filament 23.
- FIG. 2A is a plan view of the shield cylinder 16 viewed from above
- FIG. 2B is a cross-sectional view of the shield cylinder 16.
- the shield cylinder 16 includes a cylindrical portion 16A extending in a substantially vertical direction, and one end of the cylindrical portion 16A over the entire circumference of the cylindrical portion 16A. And a flange portion 16B extending in a substantially horizontal direction, and is configured as an eyelet-like cylindrical body as a whole. Further, as shown in FIG. 2A, the bent portions 16C formed at the end portions of the flange portion 16B are arranged at a predetermined interval over the entire circumference of the flange portion 16B. 2B, the bent portion 16C is formed by bending the free end of the flange portion 16B from the outside to the inside of the cylindrical portion 16A of the shield cylindrical body 16. As shown in FIG. .
- FIGS. 3A, 3 ⁇ / b> B, and 3 ⁇ / b> C the present embodiment and the conventional example are compared with respect to the operation of incorporating the shield cylinder 16 and the annular magnet 18 into the magnetron 1.
- 3A is an enlarged cross-sectional view of a range A surrounded by a dotted line in FIG. 1 before the shield cylinder 16 and the annular magnet 18 are assembled into the magnetron 1, and
- FIG. It is an expanded sectional view of the range A after incorporating the shield cylinder 16 and the annular magnet 18.
- FIG. 3C is an enlarged cross-sectional view of the range A after the conventional shield cylinder 96 and the annular magnet 18 are incorporated into the magnetron 1.
- the flange portion 15B of the side tube 15 on the cathode side that is airtightly coupled to the lower end opening portion 11A of the anode cylinder 11 is directed from the free end of the flange portion 15B toward the cylindrical portion 15A. Inclined downward. Therefore, the height from the magnetic yoke 10 to the flange portion 15B decreases from the free end of the flange portion 15B toward the cylindrical portion 15A. Therefore, the space for incorporating the shield cylinder 16 and the annular magnet 18 is slightly narrower from the lower end opening 11A of the anode cylinder 11 toward the central axis of the anode cylinder 11.
- the flange portion 15B of the cathode side tube 15 is inclined from the free end of the flange portion 15B toward the cylindrical portion 15A because the axis of the cathode filament 23 inside the anode cylinder 11 is aligned.
- the cathode side tube 15 is deformed and coaxially adjusted before the shield tube 16 and the annular magnet 18 are assembled into the magnetron 1 in order to align with the axis of the anode tube 11. For this reason, it is necessary to prevent the side tube 15 on the cathode side from being deformed from the state where the coaxial adjustment has been performed.
- the bent portion 96C formed at the end of the flange portion 96B is not on the side tube 15 side on the cathode side, but on the annular magnet 18. It is bent to the side. Therefore, the boundary portion between the flange portion 96B and the cylindrical portion 96A is in contact with the boundary portion between the cylindrical portion 15A and the flange portion 15B of the cathode side tube 15, and the cathode side tube 15 performs coaxial adjustment. Thus, the axis of the cathode filament 23 inside the anode cylinder 11 and the axis of the anode cylinder 11 are shifted.
- the bent portion 16C formed at the free end of the flange portion 16B has a side tube on the cathode side. Folded to the 15th side.
- the bent portion 16C protrudes not on the annular magnet 18 side but on the cathode side tube 15 side with respect to the flange portion 16B. Therefore, the boundary portion between the flange portion 16B and the cylindrical portion 16A of the shield cylinder 16 does not contact the boundary portion between the cylindrical portion 15A and the flange portion 15B, and the side tube 15 on the cathode side performs coaxial adjustment. There is no deformation from the state.
- the magnetron 1 of the present embodiment can maintain the deformation of the side tube 15 on the cathode side that is performed in order to align the axis of the cathode filament 23 inside the anode cylinder 11 with the axis of the anode cylinder 11.
- the deformation of the side tube 15 on the cathode side can be maintained, the coaxial adjustment is not required again, and the exterior assembly work of the magnetron 1 is facilitated.
- FIG. 4A is a plan view of a shield cylinder 36 as another example of the shield cylinder in the present embodiment as viewed from above
- FIG. 4B is a cross-sectional view of the shield cylinder 36. Indicates.
- the shield cylindrical body 36 includes a cylindrical portion 36A extending in a substantially vertical direction, and from one end of the cylindrical portion 36A to the entire circumference of the cylindrical portion 36A. And a flange portion 36B extending in the horizontal direction, and is configured as an eyelet-like cylinder as a whole. Moreover, as shown to Fig.4 (a), the bending part 36C formed in the flange part 36B is arrange
- the bent portion 36C is cut into a substantially U-shape in a part of the flange portion 36B, and the cut portion of the flange portion 36B is used as a side tube on the cathode side. 15 is formed by bending toward the side.
- the bent portion 36 ⁇ / b> C is connected to the cathode side tube 15 when the shield cylinder 36 is incorporated into the magnetron 1, as in the shield cylinder 16 in the present embodiment. Protrudes to the side. Therefore, the boundary portion between the flange portion 36B and the cylindrical portion 36A of the shield cylinder 36 does not contact the boundary portion between the cylindrical portion 15A and the flange portion 15B of the cathode side tube 15, and the cathode side tube 15 is not deformed from the state in which the coaxial adjustment is performed.
- the magnetron 1 of the present embodiment can be used for the cathode filament 23 inside the anode cylinder 11 even if the shield cylinder 36 of another example is used instead of the shield cylinder 16 of the present embodiment. It is possible to keep the deformation of the side tube 15 on the cathode side in order to align the axis with the axis of the anode cylinder 11. In addition, since the deformation of the side tube 15 on the cathode side can be maintained, the axis alignment is not required again, and the exterior assembly work of the magnetron 1 is facilitated.
- the magnetron according to the present invention maintains the deformation of the side tube on the cathode side for axial alignment of the cathode filament, and has the effect of eliminating the need for axial alignment during the exterior assembly operation of the magnetron. It is useful as a wave utilization device. Moreover, the microwave utilization apparatus which concerns on this invention can acquire the stable characteristic. *
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- Microwave Tubes (AREA)
Abstract
Description
図1において、本実施の形態1のマグネトロン1は、磁気ヨーク10と、陽極筒体11と、陽極筒体11の上端開口部に結合された出力側ポールピース12と、陽極筒体11の下端開口部に結合された入力側ポールピース13と、出力側ポールピース12を覆い陽極筒体11の上端開口部に気密結合された陽極側の側管14と、入力側ポールピース13を覆い陽極筒体11の下端開口部に気密結合された陰極側の側管15と、陽極筒体11の直上でかつ陽極側の側管14に挿入するように磁気ヨーク10内に配置された環状磁石17と、陽極筒体11の直下でかつ陰極側の側管15に挿入するように磁気ヨーク10内に配置された環状磁石18と、を有する。
センターリード26は、陰極フィラメント23の内部で、上エンドシールド24から、図示しないステムまで延びている。センターリード26は、上エンドシールドと固着し陰極フィラメント23を支持する。
図3(a)は、マグネトロン1にシールド筒体16及び環状磁石18を組み込む前の図1の点線で囲まれた範囲Aの拡大断面図であって、図3(b)は、マグネトロン1にシールド筒体16及び環状磁石18を組み込んだ後の範囲Aの拡大断面図である。また、図3(c)は、マグネトロン1に従来のシールド筒体96及び環状磁石18を組み込んだ後の範囲Aの拡大断面図である。
そのため、陰極側の側管15が同軸調整を行なった状態から変形させないようにする必要がある。
10 磁気ヨーク
11 陽極筒体
11A 下端開口部
12 出力側ポールピース
12a 孔
13 入力側ポールピース
14 陽極側の側管
15 陰極側の側管
15A 円筒状部
15B フランジ部
16 シールド筒体
16A 円筒状部
16B フランジ部
16C 折り曲げ部
17 環状磁石
18 環状磁石
19 アノードベイン
20 出力アンテナ
23 陰極フィラメント
24 上エンドシールド
25 下エンドシールド
26 センターリード
36 シールド筒体
36A 円筒状部
36B フランジ部
36C 折り曲げ部
96 シールド筒体
96A 円筒状部
96B フランジ部
96C 折り曲げ部
Claims (4)
- 陽極筒体と、
前記陽極筒体の下部に気密結合された陰極側の側管と、
略垂直方向に延びる円筒状部と、前記円筒状部に接続され、前記筒上部の全周に亘って、略水平方向に延びるフランジ部と、前記フランジ部の一部を前記陰極側の側管側に折り曲げた折り曲げ部と、を有し、前記陽極筒体の下端部で前記陰極側の側管に電気結合されたシールド筒体と、を備えるマグネトロン。 - 前記折り曲げ部は、前記フランジ部の一部である前記フランジ部の自由端を前記陰極側の側管側に折り曲げることで形成される、請求項1に記載のマグネトロン。
- 前記シールド筒体の前記折り曲げ部は、前記フランジ部の一部を略コの字状に切り込みを入れて、当該フランジ部の切り込み部分を、前記陰極側の側管側に折り曲げることで形成される、請求項1に記載のマグネトロン。
- 請求項1乃至請求項3のいずれか一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。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP09834376.7A EP2372742B1 (en) | 2008-12-25 | 2009-12-17 | Magnetron and microwave-using equipment |
JP2010543824A JPWO2010073564A1 (ja) | 2008-12-25 | 2009-12-17 | マグネトロン及びマイクロ波利用機器 |
CN200980152521.6A CN102265374B (zh) | 2008-12-25 | 2009-12-17 | 磁控管以及使用微波的设备 |
US13/141,270 US8723420B2 (en) | 2008-12-25 | 2009-12-17 | Magnetron and microwave-using equipment |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2008329943 | 2008-12-25 | ||
JP2008-329943 | 2008-12-25 |
Publications (1)
Publication Number | Publication Date |
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WO2010073564A1 true WO2010073564A1 (ja) | 2010-07-01 |
Family
ID=42287215
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2009/006994 WO2010073564A1 (ja) | 2008-12-25 | 2009-12-17 | マグネトロン及びマイクロ波利用機器 |
Country Status (5)
Country | Link |
---|---|
US (1) | US8723420B2 (ja) |
EP (1) | EP2372742B1 (ja) |
JP (1) | JPWO2010073564A1 (ja) |
CN (1) | CN102265374B (ja) |
WO (1) | WO2010073564A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109860007A (zh) * | 2019-02-01 | 2019-06-07 | 武汉美味源生物工程有限公司 | 真空状态下的磁控管和绝缘处理方法及其应用 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63193439A (ja) * | 1987-02-03 | 1988-08-10 | Matsushita Electronics Corp | マグネトロン装置 |
JPH0250943U (ja) * | 1988-10-03 | 1990-04-10 | ||
JPH02112132A (ja) * | 1988-10-20 | 1990-04-24 | Matsushita Electron Corp | マグネトロン装置 |
JPH0582029A (ja) | 1991-09-20 | 1993-04-02 | Matsushita Electron Corp | マグネトロン装置 |
JPH05299023A (ja) * | 1992-04-17 | 1993-11-12 | Matsushita Electron Corp | マグネトロン装置 |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1286379B1 (en) | 2001-08-22 | 2012-05-09 | Panasonic Corporation | Magnetron |
US6717365B2 (en) * | 2002-04-18 | 2004-04-06 | Lg Electronics Inc. | Magnetron |
KR100493298B1 (ko) * | 2002-11-20 | 2005-06-07 | 엘지전자 주식회사 | 마그네트론 및 마그네트론 부재 간 접합 방법 |
-
2009
- 2009-12-17 US US13/141,270 patent/US8723420B2/en active Active
- 2009-12-17 JP JP2010543824A patent/JPWO2010073564A1/ja not_active Withdrawn
- 2009-12-17 EP EP09834376.7A patent/EP2372742B1/en active Active
- 2009-12-17 CN CN200980152521.6A patent/CN102265374B/zh active Active
- 2009-12-17 WO PCT/JP2009/006994 patent/WO2010073564A1/ja active Application Filing
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63193439A (ja) * | 1987-02-03 | 1988-08-10 | Matsushita Electronics Corp | マグネトロン装置 |
JPH0250943U (ja) * | 1988-10-03 | 1990-04-10 | ||
JPH02112132A (ja) * | 1988-10-20 | 1990-04-24 | Matsushita Electron Corp | マグネトロン装置 |
JPH0582029A (ja) | 1991-09-20 | 1993-04-02 | Matsushita Electron Corp | マグネトロン装置 |
JPH05299023A (ja) * | 1992-04-17 | 1993-11-12 | Matsushita Electron Corp | マグネトロン装置 |
Non-Patent Citations (1)
Title |
---|
See also references of EP2372742A4 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109860007A (zh) * | 2019-02-01 | 2019-06-07 | 武汉美味源生物工程有限公司 | 真空状态下的磁控管和绝缘处理方法及其应用 |
Also Published As
Publication number | Publication date |
---|---|
CN102265374B (zh) | 2014-05-14 |
JPWO2010073564A1 (ja) | 2012-06-07 |
EP2372742B1 (en) | 2017-03-01 |
CN102265374A (zh) | 2011-11-30 |
US20110254442A1 (en) | 2011-10-20 |
EP2372742A1 (en) | 2011-10-05 |
US8723420B2 (en) | 2014-05-13 |
EP2372742A4 (en) | 2014-01-29 |
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