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    Magnetic core using composite material
    1.
    发明授权
    Magnetic core using composite material 有权

    公开(公告)号：US12112876B2

    公开(公告)日：2024-10-08

    申请号：US17291755

    申请日：2019-11-15

    Applicant: LG INNOTEK CO., LTD.

    Inventor： Mi Jin Lee ,  In Ho Jeon ,  Sang Won Lee ,  Seok Bae

    IPC: H01F27/255 ,  H01F1/34

    CPC classification number: H01F27/255 ,  H01F1/344 ,  Y10T428/32

    Abstract: The present invention relates to a magnetic core using a different type of magnetic material. The magnetic core according to one embodiment may comprise: a ferrite powder comprising manganese (Mn), zinc, iron, and oxygen (O); and a metal alloy powder made of at least two substances from among nickel (Ni), iron (Fe), aluminum (Al), molybdenum (Mo), and silicon (Si). Here, the magnetic core can comprise 67 to 72 wt % of the ferrite powder and 28 to 33 wt % of the metal alloy powder.

    Wireless Charging Apparatus
    8.
    发明申请
    Wireless Charging Apparatus 有权
    无线充电设备

    公开(公告)号：US20160036264A1

    公开(公告)日：2016-02-04

    申请号：US14812536

    申请日：2015-07-29

    Applicant: LG INNOTEK CO., LTD.

    Inventor： Seok Bae ,  Ji Yeon Song ,  Won Ha Moon ,  Sang Won Lee ,  Jong Hyuk Lee ,  Soon Young Hyun

    IPC: H02J7/02

    CPC classification number: H02J50/70 ,  H01F1/15308 ,  H01F38/14 ,  H02J7/025 ,  H02J17/00 ,  H02J50/12

    Abstract: Disclosed are a soft magnetic alloy and a wireless charging apparatus including the soft magnetic alloy. The soft magnetic alloy has a chemical formula expressed as Fe100-x-yCuxBy (wherein x ranges from 0.1 at % to 1.7 at % and y ranges from 2.3 at % to 9.6 at %). Without adding any expensive alloying element, only iron (Fe), copper (Cu), and boron (B) are used to obtain a nanocrystalline soft magnetic alloy that has a low coercive force and a high saturation magnetic flux density. The nanocrystalline soft magnetic alloy is applied to a wireless power transmitter and a wireless power receiver. Thereby, it is possible to make a shield member thin and increase a power transmission capacity. The soft magnetic alloy is easily processed into a flake form. The soft magnetic alloy processed in this way is applied to the shield member. Thereby, it is possible to increase permeability in a surface direction.

    Abstract translation: 公开了一种软磁合金和包括该软磁合金的无线充电装置。 软磁性合金具有以Fe100-x-yCuxBy表示的化学式（其中x为0.1at％至1.7at％，y为2.3at％至9.6at％）。 没有添加任何昂贵的合金元素，只使用铁（Fe），铜（Cu）和硼（B）来获得具有低矫顽力和高饱和磁通密度的纳米晶软磁合金。 纳米晶软磁合金被应用于无线电力发射机和无线电力接收机。 由此，能够使屏蔽部件变薄，并增大输电能力。 软磁合金易于加工成片状。 以这种方式处理的软磁性合金被施加到屏蔽构件。 由此，可以增加表面方向的渗透性。

    Ferrite core and coil component comprising same
    9.
    发明授权
    Ferrite core and coil component comprising same 有权

    公开(公告)号：US12002606B2

    公开(公告)日：2024-06-04

    申请号：US16965109

    申请日：2019-01-28

    Applicant: LG INNOTEK CO., LTD.

    Inventor： Hyun Ji Lee ,  Jai Hoon Yeom ,  Sung Hoon Kim ,  Seok Bae ,  Sang Won Lee

    IPC: H01F1/11 ,  H01F1/03 ,  H01F1/34 ,  H01F27/24 ,  H01F27/28

    CPC classification number: H01F1/11 ,  H01F27/24 ,  H01F27/28

    Abstract: A ferrite core according to an embodiment of the present invention includes a plurality of grains including Mn at 30 to 40 mol %, Zn at 5 to 15 mol %, and Fe at 50 to 60 mol %, and a plurality of grain boundaries disposed between the plurality of grains, wherein the plurality of grains and the plurality of grain boundaries include Co, Ni, SiO2, CaO, and Ta2O5, content of the Co and the Ni in the plurality of grains is two or more times higher than content of the Co and the Ni in the plurality of grain boundaries, content of the SiO2, the CaO, and the Ta2O5 in the plurality of grain boundaries is two or more times higher than content of the SiO2, the CaO, and the Ta2O5 in the plurality of grains, a magnetic permeability is 3000 or more, and a core loss is 800 or less.

    Magnetic core
    10.
    发明授权
    Magnetic core 有权

    公开(公告)号：US11631519B2

    公开(公告)日：2023-04-18

    申请号：US16919546

    申请日：2020-07-02

    Applicant: LG INNOTEK CO., LTD.

    Inventor： Hyun Ji Lee ,  Deok Hyeon Kim ,  Sang Won Lee

    IPC: H01F27/255 ,  H01F17/04 ,  H01F3/08

    Abstract: Disclosed is a magnetic core having improved reliability. The magnetic core includes 37 to 44 mol % of manganese (Mn), 9 to 16 mol % of zinc (Zn), 42 to 52 mol % of iron (Fe), a magnetic additive, and a non-magnetic additive, wherein the magnetic core has a permeability of 2,900 or more and a core loss of 500 mW/cm3 or less.

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