Electromagnetic wave shielding structure

    公开(公告)号:US10257969B2

    公开(公告)日:2019-04-09

    申请号:US15569011

    申请日:2016-04-22

    Abstract: According to an embodiment, provided is an electromagnetic wave shielding structure comprising: a shielding structure encompassing an electromagnetic wave generation source, and having a surface roughness on a surface thereof; and an electromagnetic wave shielding metal layer arranged on the surface of the shielding structure so as to encompass the shielding structure, wherein the upper side and the lateral side of the shielding structure have different surface roughness.

    Wireless charging apparatus
    22.
    发明授权

    公开(公告)号:US09973026B2

    公开(公告)日:2018-05-15

    申请号:US14812536

    申请日:2015-07-29

    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.

    Wireless power transmitting apparatus

    公开(公告)号:US10361026B2

    公开(公告)日:2019-07-23

    申请号:US15835009

    申请日:2017-12-07

    Abstract: A wireless power transmitting apparatus including a first transmitting coil; a second transmitting coil; a third transmitting coil on the first transmitting coil and the second transmitting coil; and a substrate to accommodate the first transmitting coil, the second transmitting coil, and the third transmitting coil, further the substrate includes a wall to surround a part of an outer circumference of the first transmitting coil and a part of an outer circumference of the second transmitting coil; a first protrusion to surround a first part of an outer circumference of the third transmitting coil; and a second protrusion to surround a second part of the outer circumference of the third transmitting coil.

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