Patent ID: 11936269
Assignee: APPLE INC.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  B | IPC B  H

Claim 0:
1. A haptic actuator, comprising:
a housing;
a movable mass;
a pivot assembly attaching the movable mass to the housing, the pivot assembly defining a pivot axis, and the movable mass having a mass center offset from the pivot axis along a lever arm extending perpendicular to the pivot axis;
a spring extending between the movable mass and the housing, the spring storing and releasing energy received from movement of the movable mass, the spring preventing full rotation of the movable mass about the pivot axis;
an electric coil attached to the movable mass and intersecting the lever arm; and
at least one magnet attached to the housing and at least partially aligned with the electric coil, wherein:
the movable mass moves with respect to the at least one magnet when a signal is applied to the electric coil; and
the electric coil comprises coil lead conductors that transition from on the movable mass to off the movable mass at one or more points on the movable mass, the one or more points on the movable mass located closer to the pivot axis than the mass center.