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    • 71. 发明申请
    • Magnetically biasing bond magnet for improving DC superposition characteristics of magnetic coil
    • 用于改善电磁线圈直流叠加特性的磁偏置磁铁
    • US20020149458A1
    • 2002-10-17
    • US09950568
    • 2001-09-10
    • TOKIN CORPORATION
    • Teruhiko FujiwaraMasayoshi IshiiHaruki HoshiKeita IsogaiHatsuo MatsumotoToru ItoTamiko Ambo
    • H01F017/06H01F021/00
    • H01F1/0558H01F1/0552H01F3/10H01F3/14H01F17/04H01F29/146H01F2003/103
    • In order to provide an inductance part having excellent DC superposition characteristic and core-loss, a magnetically biasing magnet, which is disposed in a magnetic gap of a magnetic core, is a bond magnet comprising magnetic powder and plastic resin with the content of the resin being 20% or more on the base of volumetric ratio and which has a specific resistance of 0.1 nullnullcm or more. The magnetic powder used is rare-earth magnetic powder having an intrinsic coercive force of 5 kOe or more, Curie point of 300null C. or more, and an average particle size of 2.0-50 nullm. A magnetically biasing magnet used in an inductance part that is treated by the reflow soldering method has a resin content of 30% or more and the magnetic powder used therein is SmnullCo magnetic powder having an intrinsic coercive force of 10 kOe or more, Curie point of 500null C. or more, and an average particle size of 2.5-50 nullm. A thin magnet having a thickness of 500 m or less can be realized for a small-sized inductance part.
    • 为了提供具有优异的直流叠加特性和磁芯损耗的电感部分,设置在磁芯的磁隙中的磁偏置磁体是包含磁性粉末和树脂含量的塑料树脂的粘结磁体 在体积比的基础上为20%以上,电阻率为0.1ΩEG·cm以上。 使用的磁性粉末是具有5kOe以上的固有矫顽力的稀土磁性粉末,居里点为300℃以上,平均粒径为2.0〜50μm。 用于通过回流焊接方法处理的电感部分中的磁偏置磁体具有30%以上的树脂含量,其中使用的磁性粉末是具有10kOe以上的固有矫顽力的Sm-Co磁性粉末,居里 500℃以上,平均粒径为2.5〜50μm。 对于小型电感部件,可以实现厚度为500μm以下的薄磁体。
    • 74. 发明授权
    • Inductor
    • 电感器
    • US4009460A
    • 1977-02-22
    • US614943
    • 1975-09-19
    • Masahiko FukuiYasuji Kamata
    • Masahiko FukuiYasuji Kamata
    • G05F3/06H01F21/08H01F29/14H01F38/02H01F21/00
    • G05F3/06H01F21/08H01F29/146H01F38/023H01F2003/103
    • An inductor having a coil member commonly wound on a couple of closed magnetic circuits made of a soft magnetic material. A magnetic gap is provided at a part of the soft magnetic material of at least one of the two closed magnetic circuits, and a permanent magnet providing a magnetic bias is inserted in the magnetic gap. This inductor is used in series between a DC power source providing a superimposed current of a DC current and an AC current and a load. The inductance of the inductor is very large with respect to a small DC current, while it reduces sharply when the applied DC current increases to be a certain value to show a substantially constant low value with respect to a DC current value beyond the certain value.
    • 一种电感器,其具有通常缠绕在由软磁性材料制成的一对闭合磁路上的线圈构件。 在两个闭合磁路中的至少一个的软磁材料的一部分上设置有磁隙,并且在磁隙中插入提供磁偏压的永磁体。 该电感器串联在提供直流电流的叠加电流和交流电流和负载的直流电源之间。 相对于小直流电流,电感器的电感非常大,而当所施加的直流电流增加到一定值时,相对于超过该特定值的直流电流值显示基本上恒定的低值,其电流急剧下降。
    • 75. 发明申请
    • METHOD AND APPARATUS FOR POWER TRANSFER THROUGH HIGH PERMEABILITY MATERIALS
    • 通过高渗透性材料进行功率传递的方法和装置
    • WO2014133480A3
    • 2015-02-26
    • PCT/US2013027735
    • 2013-02-26
    • FMC TECHNOLOGIESHYDRO TECHNOLOGIES INC
    • JASKOLSKI COREYMULHOLLAND JOHN J
    • H01F38/14
    • H02J50/10H01F38/14H01F2003/103H01F2038/143H02J5/005H02J50/90
    • A magnetic saturation apparatus for a wireless inductive power and/or data transfer system which comprises a magnetic field transmitter positioned on a first side of a barrier and a magnetic field receiver positioned on a second side of the barrier. The magnetic saturation apparatus includes a saturation magnet which is positioned on one side of the barrier and which in use generates a saturation flux in an adjacent saturation region of the barrier which is located at least partially between the transmitter and the receiver. The saturation flux effectively lowers the magnetic permeability of the saturation region and thereby inhibits the magnetic flux generated by the transmitter from shorting through the barrier and back into the transmitter. Thus, the saturation region facilitates the flow of magnetic flux from the transmitter into the receiver.
    • 一种用于无线感应功率和/或数据传输系统的磁饱和装置,包括位于屏障的第一侧的磁场发射器和位于屏障的第二侧的磁场接收器。 磁饱和装置包括饱和磁体,其位于屏障的一侧,并且其在使用中在至少部分地位于发射器和接收器之间的屏障的相邻饱和区域中产生饱和磁通。 饱和磁通有效地降低了饱和区的磁导率,从而抑制了发射器产生的磁通量通过屏障短路并返回发射机。 因此,饱和区域有助于从发射机到接收器的磁通量的流动。
    • 80. 发明申请
    • MAGNETIC CORE, COIL COMPONENT COMPRISING IT, AND POWER SOURCE CIRCUIT
    • 磁芯,包括线圈组件和电源电路
    • WO02035691A1
    • 2002-05-02
    • PCT/JP2001/009324
    • 2001-10-24
    • H01F3/10H01F3/14H01F27/255H02M1/00H02M3/155H02M3/28
    • H02M3/335H01F1/0552H01F1/0558H01F3/10H01F3/14H01F37/00H01F2003/103
    • A magnetic core is used for an open magnetic path, and this open magnetic core has a permanent magnet disposed on at least one magnetic path end of a magnetic body having soft magnetic characteristics which forms a magnetic path A coil component comprises this magnetic core and has at least one or more windings of one or more turns around the magnetic core where a permanent magnet is disposed on at least one magnetic path end of a magnetic body having soft magnetic characteristics. A power source circuit comprises the coil component and is so constituted that the polarity of a field impressed on the magnetic body of the soft magnetic characteristics generated by an excitation current flowing by the impressing of an input voltage on the windings mounted around the coil component may be opposite to the polarity of a field impressed on the magnetic body of the soft magnetic characteristics by the permanent magnet.
    • 磁芯用于开放磁路,该开放式磁芯具有设置在具有形成磁路的软磁特性的磁体的至少一个磁路端上的永磁体。线圈部件包括该磁芯,并具有 围绕磁芯的一个或多个匝的至少一个或多个绕组,其中永磁体设置在具有软磁特性的磁体的至少一个磁路端上。 电源电路包括线圈部件,并且被构造成使得由施加在线圈部件周围的绕组上的输入电压施加流动的激励电流产生的软磁特性所施加的磁场的极性可以 与通过永磁体对软磁特性施加在磁体上的磁场的极性相反。