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    • 1. 发明专利
    • Switching power-supply device
    • 切换电源设备
    • JP2014093926A
    • 2014-05-19
    • JP2012244994
    • 2012-11-07
    • Mitsubishi Electric Corp三菱電機株式会社
    • SUGAYA YUJIYANO TAKUTOISHIKURA HISASHITAKADA ATSUTOSHIMIZUNO TAKAHIROHIRAMATSU DAISUKEKUMAGAI TAKASHITASHIRO SHOJIROSHIRAKATA YUJI
    • H02M3/28
    • PROBLEM TO BE SOLVED: To provide a small-sized switching power-supply device that achieves a configuration in which thermal problems due to flowing of a large current hardly occur and has high efficiency and excellent assemblability, in a printed circuit board on which a switching element for secondary-side synchronous rectification of an insulating DC/DC converter circuit is mounted.SOLUTION: Secondary-side coil conductors 122 and 123 of a transformer 120 are disposed so as to be overlapped with a primary-side coil conductor 121 interposed therebetween. End portions 122a, 122b, 123a, and 123b of the secondary-side coil conductors 122 and 123 are electrically connected to drain terminals D of secondary-side switching elements 131 to 134 via connecting wiring patterns 421 to 424 on a printed circuit board 410.
    • 要解决的问题:提供一种小型开关电源装置,其实现了在其中开关的印刷电路板中实现由于大电流的流动的热问题几乎不发生并具有高效率和优异的组装性的结构 安装绝缘DC / DC转换器电路的二次侧同步整流元件。解决方案:变压器120的次级侧线圈导体122和123布置成与插入其间的初级侧线圈导体121重叠。 次级侧线圈导体122和123的端部122a,122b,123a和123b经由印刷电路板410上的连接布线图案421至424与次级侧开关元件131至134的漏极端子D电连接。
    • 3. 发明专利
    • Coil device
    • 线圈装置
    • JP2014086432A
    • 2014-05-12
    • JP2012231412
    • 2012-10-19
    • Mitsubishi Electric Corp三菱電機株式会社
    • MIZUNO TAKAHIROYANO TAKUTOISHIKURA HISASHITAKADA ATSUTOSHISUGAYA YUJIHIRAMATSU DAISUKEKUMAGAI TAKASHITASHIRO SHOJIROSHIRAKATA YUJI
    • H01F27/22H01F27/08H01F27/28H01F30/00H01F37/00
    • Y02T10/6204
    • PROBLEM TO BE SOLVED: To reduce a coil device in size by improving heat dissipation efficiency of a core body which is formed from a first core thermally coupled to a metallic housing and a second core thermally and magnetically coupled to the first core at a side far from the metallic housing, and built in the metallic housing.SOLUTION: A coil device comprises: a metallic housing 1; a core body which is formed from a first core 3 thermally coupled to the metallic housing and a second core 2 thermally and magnetically coupled to the first core at a side far from the metallic housing, and built in the metallic housing; a winding wire 10 which is wound around the core body and defines the first core and the second core as a magnetic path; a heat dissipation plate 4 brought into surface-contact with a surface of the second core at the side far from the metallic housing; and a presser spring 7 which elastically presses the heat dissipation plate against the surface of the second core at the side far from the metallic housing.
    • 要解决的问题:通过提高芯体的散热效率来减小线圈装置的尺寸,所述芯体由热耦合到金属壳体的第一芯体和在远侧处被热和磁耦合到第一芯部的第二芯体 金属外壳,内置金属外壳。线圈装置包括:金属外壳1; 芯体,其由与金属壳体热耦合的第一芯体3形成,第二芯体2在远离金属壳体的一侧热磁耦合到第一芯体,并且内置在金属壳体中; 缠绕在芯体上并将第一芯体和第二芯线限定为磁路的绕组线10; 散热板4在远离金属壳体的一侧与第二芯体的表面进行表面接触; 以及压力弹簧7,其在远离金属壳体的一侧弹性地将散热板压靠在第二芯的表面上。
    • 5. 发明专利
    • On-vehicle power converter
    • 车载电源转换器
    • JP2014045214A
    • 2014-03-13
    • JP2013231632
    • 2013-11-08
    • Mitsubishi Electric Corp三菱電機株式会社
    • SUGAYA YUJIYANO TAKUTOISHIKURA HISASHISUGITA HIDEKIKUMAGAI TAKASHITASHIRO SHOJIRO
    • H01F30/00H01F27/28H01F27/30
    • PROBLEM TO BE SOLVED: To obtain an on-vehicle power converter which can be made compact by thinning a coil member, while suppressing increase in the amount of heat generated in the coil member even if a large current is conducted.SOLUTION: A laminate coil 11 is manufactured as a ring-shaped flat sheet by superposing conductor wiring 12, 13, composed by molding a sheet-like metal conductor into a spiral coil pattern, and an insulating film 14 composed of an insulating resin, before being bonded integrally, and constitutes a coil member of a transformer or a resonance coil applied to an on-vehicle power converter. A printed wiring board 35 having a conductor pattern 37 formed thereon is disposed to bring the conductor pattern 37 into thermally contact state with the laminate coil 11.
    • 要解决的问题:为了获得能够通过使线圈构件变薄而能够紧凑的车载功率转换器,同时抑制线圈构件中产生的热量的增加,即使进行大电流。解决方案:层叠线圈 11通过将通过将片状金属导体成型为螺旋线圈图案而构成的导体布线12,13和由绝缘树脂构成的绝缘膜14一体地结合而制成为环状平板,以及 构成应用于车载电力转换器的变压器或共振线圈的线圈构件。 布置具有形成在其上的导体图案37的印刷线路板35,以使导体图案37与层叠线圈11形成热接触状态。
    • 6. 发明专利
    • Circuit board
    • 电路板
    • JP2013219396A
    • 2013-10-24
    • JP2013153132
    • 2013-07-24
    • Mitsubishi Electric Corp三菱電機株式会社
    • MIZUNO TAKAHIROYANO TAKUTOISHIKURA HISASHITAKADA ATSUTOSHISUGAYA YUJIKUMAGAI TAKASHITASHIRO SHOJIRO
    • H05K1/14H01F37/00H02M3/00H05K1/02
    • PROBLEM TO BE SOLVED: To inexpensively provide a circuit board in which there is no problem even when a winding and a core temperatures become high without using a printed board having a special structure to the whole device, and which surely holds the winding to the printed board to improve its reliability.SOLUTION: A circuit board comprises a printed board 1, at least a winding 2D and a core 3 forming a magnetic path of a magnetic flux interlinked to the winding 2D. A through hole 11 with such a size that passes at least the core 3, is provided on the printed board 1, the core 3 is provided in the through hole 11, a hole for inserting a leg of the core is provided on a center part of the core 3, the core 3 comprises a sub-printed board 5 having a heat-resisting grade being higher than that of the printed board 1, and the winding 2D consists of a patten which is formed on the sub-printed board 5 and in which connection parts 2d are provided on its both edges.
    • 要解决的问题:为了廉价地提供即使卷绕和芯温度变高而不会使整个装置使用具有特殊结构的印刷板也不会有问题的电路板,并且可靠地将卷绕到印刷 板,以提高其可靠性。解决方案:电路板包括印刷板1,至少绕组2D和芯3,其形成与绕组2D相互连接的磁通量的磁路。 在印刷电路板1上设置有至少通过芯3的尺寸的通孔11,芯3设置在通孔11中,用于插入芯的腿的孔设置在中心部分 芯3的芯3包括具有比印刷电路板1的耐热等级更高的耐热等级的副印刷电路板5,并且绕组2D由形成在副印刷电路板5上的图案和 其中连接部分2d设置在其两个边缘上。
    • 8. 发明专利
    • Insulated type dc-dc converter
    • 绝缘型DC-DC转换器
    • JP2013198387A
    • 2013-09-30
    • JP2012066731
    • 2012-03-23
    • Mitsubishi Electric Corp三菱電機株式会社
    • ISHIKURA HISASHIYANO TAKUTOSUGAYA YUJIKUMAGAI TAKASHITASHIRO SHOJIROTAKADA ATSUTOSHIMIZUNO TAKAHIRO
    • H02M3/28H01F30/00
    • PROBLEM TO BE SOLVED: To provide an insulated type DC-DC converter which restrains heat generation in a transformer and smooth coil and which also cuts back component cost and simplifies an assembly process.SOLUTION: An insulated type DC-DC converter comprises: switching elements 1a-1d; transformers 2a, 2b, including cores 23a, 23b having primary coils 21a, 21b and secondary coils 22a, 22b wound around, which transfer electric power supplied to the primary coils to the secondary coils by switching operation of the switching elements; rectifier elements 3a-3d which rectify the electric power transferred to the secondary coils; and smoothing coils 4a, 4b, including coils 42a, 42b wound around cores 41a, 41b, which smooth the electric power rectified by the rectifier elements. In the insulated type DC-DC converter, the transformers 2a, 2b are configured with at least two of them, and the cores or the secondary coils of each transformer are in the same shape at least on one side of them, and the cores of at least two transformers are mutually fixed by a first common fixing member 5.
    • 要解决的问题:提供一种绝缘型DC-DC转换器,其抑制变压器和平滑线圈中的发热,并且还减少部件成本并简化组装过程。解决方案:绝缘型DC-DC转换器包括:开关元件 1a-1d; 变压器2a,2b包括具有初级线圈21a,21b和二次线圈22a,22b的初级线圈21a,21b的芯23a,23b,其通过开关元件的切换操作将提供给初级线圈的电力传递到次级线圈; 对整流元件3a〜3d进行整流,将整流元件3a〜3d整流到二次线圈中; 以及卷绕在芯41a,41b上的线圈42a,42b的平滑线圈4a,4b,其平滑由整流元件整流的电力。 在绝缘型DC-DC转换器中,变压器2a,2b配置有至少两个变压器,并且每个变压器的铁芯或次级线圈至少在其一侧处于相同的形状, 至少两个变压器由第一公共固定构件5相互固定。
    • 10. 发明专利
    • 電源装置
    • 电源设备
    • JP2014204487A
    • 2014-10-27
    • JP2013076586
    • 2013-04-02
    • 三菱電機株式会社Mitsubishi Electric Corp
    • SHIRAKATA YUJIKUMAGAI TAKASHINAKAJIMA KOJITASHIRO SHOJIROYANO TAKUTOISHIKURA HISASHISUGAYA YUJIHIRAMATSU DAISUKE
    • H02M3/28
    • 【課題】共振コイルやトランス等のインダクタンス部品を筐体に取り付ける際に、ベースプレートの柱状突起やねじ固定するためのスペースが必要となり、小型化やパワー密度向上の妨げとなっていた。【解決手段】金属製の筐体(基台)400に、第1のコア411とこの第1のコアに磁気的に結合された第2のコア412と第1のコアまたは第2のコアに巻回された巻線413とで構成されたインダクタンス部品110を配置し、インダクタンス部品の第2のコア412の上に基台の遠い側から弾性的に押し付ける押さえバネ410を設け、金属製のカバー420を筐体(基台)400を覆うように筐体400に取り付けた際に、カバー420が押さえバネ410を加圧してインダクタンス部品110を筐体(基台)に押し付け固定するようにした。【選択図】図3
    • 要解决的问题:为了解决一个问题,即当诸如谐振线圈或变压器之类的电感元件安装在外壳上时,需要一个用于底板的圆柱形突起和用于固定螺钉的空间,这妨碍了尺寸的减小和功率 密度提高。解决方案:在金属外壳(基座)400中,布置电感元件110,其由第一芯411,与第一芯磁耦合的第二芯412和绕第一芯缠绕的线413组成 或第二核心。 在电感元件的第二芯412的表面上设置有从基座更远的一侧弹性按压的按压弹簧410。 当金属盖420附接到壳体400以覆盖壳体(基座)400时,盖420牢固地按压按压弹簧410,从而将电感部件110按压到壳体(基座)。