US 12,341,242 B2
Magnetic field shielding sheet and wireless power transfer module including the same
Kil Jae Jang, Cheonan-si (KR)
Assigned to AMOSENSE CO., LTD, Cheonan-si (KR)
Appl. No. 18/555,854
Filed by AMOSENSE CO., LTD, Cheonan-si (KR)
PCT Filed Apr. 19, 2022, PCT No. PCT/KR2022/005604
§ 371(c)(1), (2) Date Oct. 17, 2023,
PCT Pub. No. WO2022/225305, PCT Pub. Date Oct. 27, 2022.
Claims priority of application No. 10-2021-0050568 (KR), filed on Apr. 19, 2021.
Prior Publication US 2024/0213667 A1, Jun. 27, 2024
Int. Cl. H01Q 1/52 (2006.01); H01Q 1/38 (2006.01); H02J 50/10 (2016.01); H02J 50/70 (2016.01)
CPC H01Q 1/526 (2013.01) [H01Q 1/38 (2013.01); H02J 50/10 (2016.02); H02J 50/70 (2016.02)] 10 Claims
OG exemplary drawing
 
1. A magnetic field shielding sheet, attached to a wireless power transfer antenna and a wireless communication antenna, the magnetic field shielding sheet comprising:
a shielding part made of a magnetic material so as to shield a magnetic field; and
at least one eddy current-reducing pattern part which is formed in the shielding part to increase the resistance of the shielding part and thereby reduce the generation of eddy currents,
wherein the eddy current-reducing pattern part comprises:
a first eddy current-reducing pattern part formed to intersect with both the wireless power transfer antenna and the wireless communication antenna; and
a second eddy current-reducing pattern part formed to intersect with the wireless communication antenna.