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    • 2. 发明申请
    • MAGNETRON DRIVE BOOSTING TRANSFORMER
    • MAGNETRON驱动升压变压器
    • WO2003077603A2
    • 2003-09-18
    • PCT/JP2003/000279
    • 2003-01-15
    • MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.MIHARA, MakotoYASUI, KenjiKITAIZUMI, Takeshi
    • MIHARA, MakotoYASUI, KenjiKITAIZUMI, Takeshi
    • H05B6/66
    • H05B6/662H01F3/10H01F3/14H01F27/38H01F2038/003H03B9/10
    • The present invention provides a boosting transformer for microwave oven, which is low in high-frequency loss, hardly saturated, small in size and easy to produce. The boosting transformer includes a rod-like ferrite core; and primary, secondary and heater windings wound around the rod-like ferrite core and piled up side by side in a direction of an axis of the rod-like ferrite core. It also incldues a metal core formed from a long metal thin plate rolled by a plurality of times into a square-ring having one inner diameter larger than each of outer sizes of the primary, secondary and heater windings and the other inner diameter larger than a total size of the three windings piled up side by side, the metal core being arranged opposite to the rod-like ferrite core through a gap so as to be fitted toward the rod-like ferrite core from the outside of the primary, secondary and heater windings.
    • 本发明提供一种微波炉的升压变压器,其高频损耗低,难以饱和,体积小,易于制造。 升压变压器包括棒状铁氧体磁心; 以及缠绕在棒状铁氧体磁芯上的一次,二次和加热绕组,并且在棒状铁氧体磁芯的轴线方向上并排堆放。 它还包括由多个多次轧制成一个内径比一次,二次和加热器绕组的外径大的一个内径的方形环形成的金属芯,另一个内径大于 三个绕组的总尺寸并排堆积,金属芯通过间隙与杆状铁氧体磁心相对地布置,以便从主要,次要和加热器的外部朝向棒状铁氧体磁芯 绕组。