公开(公告)号：US11817755B2

公开(公告)日：2023-11-14

申请号：US17336074

申请日：2021-06-01

Applicant: Apple Inc.

Inventor： Brett W. Degner ,  Brenton A. Baugh ,  Shingo Yoneoka ,  Songsheng Zhou

IPC: H02K33/18 ,  H02K1/34 ,  G06F3/01 ,  G06F3/0354

CPC classification number: H02K33/18 ,  H02K1/34 ,  G06F3/016 ,  G06F3/03545

Abstract: A linear resonant actuator includes a ferritic tube, a movable mass, first and second flexures, and a set of one or more flexures. The ferritic tube has an axis extending from a first end of the ferritic tube to a second end of the ferritic tube. The movable mass has a set of magnet sections disposed along the axis. First and second flexures mechanically couple first and second ends of the movable mass to the ferritic tube. The flexures suspend the movable mass within the ferritic tube and allow movement of the movable mass along the axis. The electric coil(s) are attached to the ferritic tube and extend around the movable mass, between the ferritic tube and the movable mass. Each magnet section has magnetic poles disposed at different positions along the axis, and like magnetic poles of adjacent magnetic sections face each other.

公开(公告)号：US20220385160A1

公开(公告)日：2022-12-01

申请号：US17336074

申请日：2021-06-01

Applicant: Apple Inc.

Inventor： Brett W. Degner ,  Brenton A. Baugh ,  Shingo Yoneoka ,  Songsheng Zhou

IPC: H02K33/18

Abstract: A linear resonant actuator includes a ferritic tube, a movable mass, first and second flexures, and a set of one or more flexures. The ferritic tube has an axis extending from a first end of the ferritic tube to a second end of the ferritic tube. The movable mass has a set of magnet sections disposed along the axis. First and second flexures mechanically couple first and second ends of the movable mass to the ferritic tube. The flexures suspend the movable mass within the ferritic tube and allow movement of the movable mass along the axis. The electric coil(s) are attached to the ferritic tube and extend around the movable mass, between the ferritic tube and the movable mass. Each magnet section has magnetic poles disposed at different positions along the axis, and like magnetic poles of adjacent magnetic sections face each other.