公开(公告)号：US11563233B1

公开(公告)日：2023-01-24

申请号：US16818614

申请日：2020-03-13

Applicant: META PLATFORMS TECHNOLOGIES, LLC

Inventor： Jason Howard ,  Bryan W. Fan ,  Jeffrey Taylor Stellman ,  Karthik Kadirvel ,  Jonathan Longhitano

IPC: H01M50/10 ,  H01M10/04 ,  G02B27/01 ,  H01M50/20

Abstract: A wearable battery-pack accessory may include (1) one or more curved batteries, (2) charging circuitry that charges the one or more curved batteries, (3) supplying circuitry that supplies power to a connected external computing device, and (4) an outer housing including a curved surface shaped to conform to a portion of a wearer's body. A head-mounted display system may include (1) a head-mounted display, (2) a strap that is coupled to the head-mounted display and wraps around the back of a user's head when the user is wearing the head-mounted display, and (3) a battery-pack accessory detachably coupled to the strap. Various other apparatus, systems, and methods are also disclosed.

公开(公告)号：US11431042B2

公开(公告)日：2022-08-30

申请号：US17014861

申请日：2020-09-08

Applicant: META PLATFORMS TECHNOLOGIES, LLC

Inventor： Karthik Kadirvel ,  Jason Howard ,  Michael Xingyi Yu ,  Bryan W. Fan

IPC: H01M10/637 ,  H01M10/04 ,  H01M10/0583

Abstract: A battery system includes a plurality of battery cells connected in parallel. Each battery cell includes a positive and negative tab. The battery system also includes a plurality of thermal switch devices (e.g., temperature cut off (TCO) or positive temperature coefficient (PTC) devices). Each thermal switch device is electrically coupled to a respective cell. The battery system further includes a rigid-flex circuit board comprising a plurality of rigid regions. Each rigid region is physically and electrically connected to an adjacent rigid region by a respective flexible region. Each rigid region is electrically coupled to respective positive and negative tabs of a respective battery cell. Each thermal switch device prevents abnormal current flow (e.g., by limiting the flow of current at high temperatures) between a first battery cell that is coupled to the thermal switch device and a second battery cell that is adjacent to the first battery cell.