US 12,391,134 B2
Wireless charging device, and transportation means comprising same
Tae Kyoung Kim, Gyeonggi-do (KR); Jong Hak Choi, Gyeonggi-do (KR); Nah Young Kim, Gyeonggi-do (KR); and Seunghwan Lee, Gyeonggi-do (KR)
Assigned to SKC CO., LTD., Gyeonggi-do (KR)
Appl. No. 17/764,469
Filed by SKC CO., LTD., Gyeonggi-do (KR)
PCT Filed Oct. 29, 2020, PCT No. PCT/KR2020/014932
§ 371(c)(1), (2) Date Mar. 28, 2022,
PCT Pub. No. WO2021/086066, PCT Pub. Date May 6, 2021.
Claims priority of application No. 10-2019-0135517 (KR), filed on Oct. 29, 2019; application No. 10-2020-0048503 (KR), filed on Apr. 22, 2020; and application No. 10-2020-0057764 (KR), filed on May 14, 2020.
Prior Publication US 2022/0332197 A1, Oct. 20, 2022
Int. Cl. H01F 27/36 (2006.01); B60L 53/12 (2019.01); H01F 27/22 (2006.01); H02J 50/00 (2016.01); H02J 50/10 (2016.01); H02J 50/12 (2016.01); H02J 50/70 (2016.01)
CPC B60L 53/12 (2019.02) [H01F 27/22 (2013.01); H01F 27/36 (2013.01); H02J 50/005 (2020.01); H02J 50/10 (2016.02); H02J 50/70 (2016.02)] 14 Claims
OG exemplary drawing
 
1. A wireless charging device, which comprises a coil unit; a shield unit disposed on the coil unit; and a magnetic unit comprising a first magnetic unit and a second magnetic unit and disposed between the coil unit and the shield unit, wherein the second magnetic unit has a magnetic permeability at 85 kHz higher than that of the first magnetic unit, and wherein the second magnetic unit has a thermal conductivity higher than that of the first magnetic unit by 0.1 W/m·K to 6 W/m·K.