Invention Grant
- Patent Title: Wireless power transmission apparatus
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Application No.: US16956662Application Date: 2019-03-05
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Publication No.: US11349346B2Publication Date: 2022-05-31
- Inventor: Bo Hyeon Han , Hee Jung Seo , Won San Na
- Applicant: AMOSENSE CO., LTD.
- Applicant Address: KR Cheonan-si
- Assignee: AMOSENSE CO., LTD.
- Current Assignee: AMOSENSE CO., LTD.
- Current Assignee Address: KR Cheonan-si
- Agency: Rothwell, Figg, Ernst & Manbeck, P.C.
- Priority: KR10-2018-0025976 20180305
- International Application: PCT/KR2019/002493 WO 20190305
- International Announcement: WO2019/172595 WO 20190912
- Main IPC: H02J50/40
- IPC: H02J50/40 ; H02J50/10 ; H02J50/70 ; H02J50/00 ; H01F27/28 ; H01F27/36 ; H01F38/14 ; H02J7/00 ; H02J7/02

Abstract:
A wireless power transmission apparatus having a first coil configured to wirelessly charge a battery of a first electronic device; a second coil formed to have a size relatively greater than that of the first coil and configured to wirelessly charge a battery of a second electronic device; a shielding member configured to shield a magnetic field generated from the first coil and the second coil; and a case configured to accommodate the first coil, the second coil, and the shielding member, wherein the first coil is disposed so that a portion corresponding to a first width of a coil body overlaps a coil body of the second coil, and a portion corresponding to a remaining second width excluding the portion corresponding to the first width is located in a hollow part formed in the coil body of the second coil.
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