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    High-voltage input terminal structure of a magnetron for a microwave oven
    1.
    发明公开
    High-voltage input terminal structure of a magnetron for a microwave oven 失效
    Hochspannungseingang-Terminalaufbau eines Magnetronsfüreinen Mikrowellenofen。

    公开(公告)号：EP0270005A2

    公开(公告)日：1988-06-08

    申请号：EP87117488.4

    申请日：1987-11-26

    申请人： KABUSHIKI KAISHA TOSHIBA

    发明人： Tashiro, Norio c/o Patent Division ,  Adachi, Masaki c/o Patent Division ,  Ikeda, Toshio c/o Patent Division ,  Saito, Hisao c/o Patent Division ,  Matsushita, Saburo c/o Patent Division ,  Komine, Masataka c/o Patent Division

    IPC分类号： H01J23/15 ,  H01J23/12 ,  H01J23/14 ,  H05B6/64 ,  F24C7/02

    CPC分类号： H01J23/15

    摘要： In a magnetron for microwave oven, a high-voltage input terminal structure 30 is provided on a shield box 26 mounted on a magnetron unit 22. The high-voltage input terminal structure 30 has a cylindrical earth electrode 33, a cylindrical high potential inner elec­trode 32 and a central conductor 31a. The cylindrical earth electrode 33 is secured to the shield box 26 and the cylindrical high potential inner electrode 32 is coaxially arranged in the cylindrical earth electrode 33. The central conductor 31a is connected through an inductor 28 to a cathode lead 27 of the magnetron unit 22. An insulating resin 34b is filled in a gap between the cylindrical earth electrode 33 and the high-­potential electrode 32 to form a capacitor section C. Cylindrical insulating sheaths 37, 38 are formed by the resin on the both sides of the capacitor section C. The capacitor section C and the cylindrical insulating sheaths 37, 38 are integrally formed and continuously extended along a straight line.

    摘要翻译： 在用于微波炉的磁控管中，高压输入端子结构30设置在安装在磁控管单元22上的屏蔽箱26上。高电压输入端子结构30具有圆柱形接地电极33，圆柱形高电位内部电极 32和中心导体31a。 圆筒形接地电极33固定在屏蔽箱26上，圆筒形高电位内部电极32同轴地布置在圆柱形接地电极33中。中心导体31a通过电感器28连接到磁控管单元22的阴极引线27 绝缘树脂34b填充在圆柱形接地电极33和高电位电极32之间的间隙中以形成电容器部分C.圆柱形绝缘护套37,38由电容器部分C两侧的树脂形成 电容器部分C和圆柱形绝缘护套37,38一体地形成并沿着直线连续延伸。

    Magnetron for microwave oven
    2.
    发明公开
    Magnetron for microwave oven 失效
    用于微波炉的MAGNETRON

    公开(公告)号：EP0263491A3

    公开(公告)日：1989-07-12

    申请号：EP87114586.8

    申请日：1987-10-06

    申请人： KABUSHIKI KAISHA TOSHIBA

    发明人： Kinuno, Masanori c/o Patent Division ,  Saito, Hisao c/o Patent Division ,  Kousaka, Akira c/o Patent Division ,  Kawaguchi, Toshio c/o Patent Division

    IPC分类号： H01J23/10 ,  H01J25/587

    CPC分类号： H01J25/587 ,  H01J23/10

    摘要： In a magnetron, anode vanes (23) are radially arranged in an anode cylinder (22) and fixed to the inner surface of the anode cylinder (22) and a cathode (25) is arrange along a tube axis in the anode cylinder (22). A pole pieces (29, 30) of dish like shape are fixed to openings of the anode cylinder (22) and the anode cylinder (22) is hearmetically sealed by cylin­drical chambers (32, 33). Permanent magnet rings (34, 35) are arranged around the cylindrical chambers (32, 33), respectively and are magnetically coupled by a yoke (36). Each of pole pieces (29, 30) has a flange section (29b, 30b), a flat inner disk section (29a, 30a) and a coupling section (29c, 30c) extending from flange section (29b, 30b) to flat inner disk section (29, 30a). The outer diameter of pole piece (29, 30) is larger than 160% the diameter of an envelope defined by inner ends of said anode vanes (23). A envelope space contacting the inner ends of said anode vanes has a predetermined magnetic field intensity distribution which is produced by a magnetic flux supplied from pole piece (29, 30) and has a difference of not more than 15% along tube axis.

    Magnetron for a microwave oven
    4.
    发明公开
    Magnetron for a microwave oven 失效
    Magnetronfüreinen Mikrowellenofen。

    公开(公告)号：EP0205316A1

    公开(公告)日：1986-12-17

    申请号：EP86304299.0

    申请日：1986-06-05

    申请人： KABUSHIKI KAISHA TOSHIBA

    发明人： Saito, Hisao c/o Patent Division ,  Tashiro, Norio c/o Patent Division ,  Mino, Munetaka c/o Patent Division ,  Miura, Heihachi c/o Patent Division

    IPC分类号： H01J23/54

    CPC分类号： H01J23/54

    摘要： A magnetron (30) is provided with at least one choke (B 1 ) for harmonic frequencies of the fourth harmonic or higher and in particular the fifth harmonic etc. in the interior of the metal container (37). The space in the diametric direction inside an opening (37b) of the metal container hermetrically sealed from the anode (31) is limited to not more than about 1/2 of the wavelength of this higher harmonic.

    摘要翻译： 磁控管（30）在金属容器（37）的内部设置有至少一个用于四次谐波或更高次谐波频率的扼流圈（B1），特别是五次谐波等。 与阳极（31）离心密封的金属容器的开口（37b）内的直径方向的空间被限制在不高于该高次谐波的波长的约1/2的范围。

    Magnetron for microwave oven
    7.
    发明公开
    Magnetron for microwave oven 失效
    Magnetronfüreinen Mikrowellenherd。

    公开(公告)号：EP0263491A2

    公开(公告)日：1988-04-13

    申请号：EP87114586.8

    申请日：1987-10-06

    申请人： KABUSHIKI KAISHA TOSHIBA

    发明人： Kinuno, Masanori c/o Patent Division ,  Saito, Hisao c/o Patent Division ,  Kousaka, Akira c/o Patent Division ,  Kawaguchi, Toshio c/o Patent Division

    IPC分类号： H01J23/10 ,  H01J25/587

    CPC分类号： H01J25/587 ,  H01J23/10

    摘要： In a magnetron, anode vanes (23) are radially arranged in an anode cylinder (22) and fixed to the inner surface of the anode cylinder (22) and a cathode (25) is arrange along a tube axis in the anode cylinder (22). A pole pieces (29, 30) of dish like shape are fixed to openings of the anode cylinder (22) and the anode cylinder (22) is hearmetically sealed by cylin­drical chambers (32, 33). Permanent magnet rings (34, 35) are arranged around the cylindrical chambers (32, 33), respectively and are magnetically coupled by a yoke (36). Each of pole pieces (29, 30) has a flange section (29b, 30b), a flat inner disk section (29a, 30a) and a coupling section (29c, 30c) extending from flange section (29b, 30b) to flat inner disk section (29, 30a). The outer diameter of pole piece (29, 30) is larger than 160% the diameter of an envelope defined by inner ends of said anode vanes (23). A envelope space contacting the inner ends of said anode vanes has a predetermined magnetic field intensity distribution which is produced by a magnetic flux supplied from pole piece (29, 30) and has a difference of not more than 15% along tube axis.

    摘要翻译： 在磁控管中，阳极叶片（23）径向布置在阳极筒（22）中并固定到阳极筒（22）的内表面，阴极（25）沿阳极筒（22）的管轴排列 ）。 碟状的极片（29,30）固定在阳极筒（22）的开口部，阳极筒（22）被圆柱形的腔室（32,33）不可靠地密封。 永磁体环（34,35）分别围绕圆柱形腔室（32,33）设置，并通过轭架（36）磁耦合。 每个极片（29,30）具有凸缘部分（29b，30b），平坦的内圆盘部分（29a，30a）和从凸缘部分（29b，30b）延伸到平坦内部的联接部分（29c，30c） 盘部分（29,30a）。 极片（29,30）的外径大于由所述阳极叶片（23）的内端限定的外壳的直径的160％。 与所述阳极叶片的内端接触的信封空间具有预定的磁场强度分布，其由从极片（2​​9,30）提供的磁通量产生，并且沿着管轴具有不大于15％的差。