公开(公告)号：US20230361601A1

公开(公告)日：2023-11-09

申请号：US18130621

申请日：2023-04-04

Applicant: Meta Platforms Technologies, LLC

Inventor： Baifeng CHEN ,  Yewching CHEN ,  Zhongming CHEN ,  David TAO ,  Tony DAVID

IPC: H02J50/12 ,  H02J7/00 ,  G02B27/01 ,  H02J50/80 ,  H02J50/00

CPC classification number: H02J50/12 ,  H02J7/0044 ,  G02B27/017 ,  H02J50/80 ,  H02J50/005 ,  G02B2027/0178

Abstract: According to examples, a charging interface for a wearable device may include a receiver coil arranged inside the wearable device; a transmitter coil arranged outside the wearable device, where the transmitter coil is to generate a charging voltage for the wearable device via magnetic induction with the receiver coil. The charging interface may include a first pair of magnets having respective polarity axes and positioned at top and bottom portions of the transmitter coil, and a second pair of magnets having respective polarity axes and positioned at top and bottom portions of the receiver coil. The polarity axes to may be aligned with an attachment plane between the transmitter coil and the receiver coil. Furthermore, the polarity axes of the first pair of magnets may be reversed with respect to corresponding second pair of magnets.