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公开(公告)号：US12112883B2
公开(公告)日：2024-10-08
申请号：US18040797
申请日：2021-07-14
申请人： AMOSENSE CO., LTD
发明人： Kil Jae Jang , Dong Hoon Lee , Chol Han Kim
摘要： A magnetic shielding sheet for a wireless power reception module is provided. A magnetic shielding sheet for a wireless power reception module according to an exemplary embodiment of the present invention, which is applied to a wireless power reception module capable of a wireless power share (WPS) function and has an overall thickness of 150 μm or less. The magnetic shielding sheet includes a first sheet made of a magnetic material to shield a magnetic field, and a second sheet laminated as a monolayer on one surface of the first sheet by means of a bonding adhesive layer, wherein the second sheet is provided to have a smaller thickness than a thickness of the first sheet while having a saturation magnetic flux density twice or more than a saturation magnetic flux density of the first sheet.
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公开(公告)号：US20240283301A1
公开(公告)日：2024-08-22
申请号：US18649495
申请日：2024-04-29
申请人： Apple Inc.
CPC分类号： H02J50/70 , H01F27/2885 , H01F27/36 , H01F27/363 , H01F38/14 , H02J50/10 , H02J50/12 , H02J50/402
摘要： Wireless power transmitting devices according to embodiments of the present technology may include a contact surface configured to support one or more wireless power receiving devices. The wireless power transmitting devices may include a plurality of coils. The wireless power transmitting devices may also include a shield positioned between the plurality of coils and the contact surface. The shield may include one or more shield members, each shield member axially aligned with a separate coil of the plurality of coils, and may include a multilayer structure exhibiting various conductivities.
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公开(公告)号：US12004283B2
公开(公告)日：2024-06-04
申请号：US18186847
申请日：2023-03-20
发明人： Raleigh C. Duncan , Andrew Kaps
CPC分类号： H05B6/44 , A61H33/063 , H01F27/36 , H05B3/26 , H05B6/10 , A61H2033/061 , A61H2201/0221 , H05B2203/011 , H05B2203/013 , H05B2203/014
摘要： Systems may include a heater including a plurality of heating elements that may include a first heating element configured to generate heat based on a first current, and a second heating element configured to generate heat based on a second current. Systems may further include an electromagnetic (EM) radiation reducing device configured to cancel electromagnetic emissions from the heater. The EM radiation reducing device may include a first EM radiation reduction element positioned adjacent to a first side of the heater, and a second EM radiation reduction element positioned adjacent to a second side of the heater, where the first and second EM radiation reduction elements have geometries configured based, at least in part, on the heater.
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公开(公告)号：US11996706B2
公开(公告)日：2024-05-28
申请号：US18344223
申请日：2023-06-29
申请人： NuCurrent, Inc.
发明人： Md. Nazmul Alam
摘要： An antenna for wireless power transfer includes a first antenna terminal, a second antenna terminal, at least one inner turn, the at least one inner turn having an inner turn width, and at least one outer turn, the at least one outer turn having an outer turn width, the outer turn width greater than the inner turn width. The antenna further includes a substrate positioned underneath the at least one inner turn and the at least one outer turn and a plurality of separate panes of a magnetic shielding material. Each of the plurality of separate panes are positioned substantially co-planar, with respect to each other, and positioned between the substrate and both the at least one inner turns and the at least one outer turns.
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公开(公告)号：US11978583B2
公开(公告)日：2024-05-07
申请号：US17158538
申请日：2021-01-26
发明人： Yongfa Zhu , Xiaowei Chen , Tao Ding , Zhiqiang Zeng , Chang Yang , Zhaodong He
CPC分类号： H01F38/14 , H01F27/2871 , H01F27/36 , H02J7/04 , H02J50/10
摘要： A coil module includes a first planar coil winding that includes a plurality of turns of coils, at least one turn of first coil in the plurality of turns of coils includes at least one first cutting opening, and the first cutting opening divides the first coil into a first outer side part and a first inner side part along an extension direction of the coil, and a first target side part includes a first cutting groove, the first target side part is at least one of the first outer side part and the first inner side part, an extension direction of the first cutting groove is the same as an extension direction of the first target side part, and a width of a single first cutting groove is less than or equal to a width of a single first cutting opening.
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公开(公告)号：US20240145163A1
公开(公告)日：2024-05-02
申请号：US18382360
申请日：2023-10-20
发明人： Chiao FU , Yi-Chao LIN , Yao-Zhong LIU , Jia-Tay KUO
CPC分类号： H01F27/325 , H01F27/36 , H01F38/42
摘要： A transformer includes a bobbin and a plurality of coils wound on the bobbin. The plurality of coils includes a first primary coil; a second primary coil, located above the first primary coil and electrically connected to the first primary coil; a secondary coil, located between the first primary coil and the second primary; a first auxiliary coil, located above the second primary coil; and a second auxiliary coil, located on the first auxiliary coil and electrically connected to the first auxiliary coil. A turn number of the first auxiliary coil is greater than a turn number of the second auxi
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公开(公告)号：US11972893B2
公开(公告)日：2024-04-30
申请号：US15734193
申请日：2018-06-07
CPC分类号： H01F27/2885 , H01F27/327 , H01F27/36 , H01F27/361 , H01F27/363 , H01F27/366 , H01F41/127 , H01F2027/328 , H01F2027/329
摘要： In some embodiments, a shielded coil assembly is provided that includes (1) a coil having an outer surface, an inner surface, an upper end surface and a lower end surface and a first insulating material formed over the outer surface, inner surface, upper end surface and lower end surface of the coil; and (2) a conductive shield comprising a conductive paint applied along the first insulating material so that the conductive paint extends over at least a portion of each of the outer surface, inner surface, upper end surface, and lower end surface of the coil. In one or more embodiments, a dry-type transformer may be formed using the shielded coil assembly. Numerous other embodiments are provided.
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公开(公告)号：US11916489B2
公开(公告)日：2024-02-27
申请号：US17376129
申请日：2021-07-14
发明人： Yanbo Zou , Fada Du , Chao Tang , Wenjie Lin
CPC分类号： H02M3/33576 , H01F27/24 , H01F27/2804 , H01F27/36 , H02M1/08 , H01F2027/2809 , H01F2027/2819
摘要： The present invention provides a high efficiency, high density GaN-based power converter comprising: a transformer; a magnetic coupler; a primary switch; a secondary switch; a primary controller; a secondary controller; a multi-layered print circuit board (PCB) comprising: one or more planar coils respectively formed on one or more PCB layers and aligned with each other for constructing the transformer and the coupler; and a plurality of conducting traces and vias for providing electrical connection among the transformer, the coupler, a primary switch, a secondary switch, a primary controller and a secondary controller. The power converter further comprises a pair of ferrite cores being fixed to a top surface and a bottom surface of the PCB respectively and commonly shared by the transformer and the coupler.
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公开(公告)号：US11915857B2
公开(公告)日：2024-02-27
申请号：US17583136
申请日：2022-01-24
申请人： AMOSENSE CO., LTD.
发明人： Kil Jae Jang
CPC分类号： H01F27/366 , H01F27/36 , H01F38/14 , H02J50/12 , H02J50/70
摘要： A magnetic shielding sheet is provided. The magnetic shielding sheet according to an embodiment of the present invention comprises: a plate-shaped magnetic sheet made of a magnetic material containing a metal component; and a cover member for covering the entire surface of the magnetic sheet so as to prevent the surface of the magnetic sheet from being exposed to the outside.
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公开(公告)号：US11913984B2
公开(公告)日：2024-02-27
申请号：US17442672
申请日：2019-07-19
发明人： Seung Wook Lee
CPC分类号： G01R31/1227 , H01F27/24 , H01F27/29 , H01F27/36
摘要： A device for testing insulation properties of a transformer may be provided by: a low-voltage winding part and a high-voltage winding part that are arranged concentrically with each other; an iron core for testing combined with the low-voltage winding part and the high-voltage winding part and adjustable in height according to the height of low-voltage winding part and the high-voltage winding part; a low-voltage terminal part connected to both ends of the winding of the low-voltage winding part; and a high-voltage terminal part connected to both ends of the winding of the high-voltage winding part.
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