Patent ID: 11935695
Assignee: KNOWLES ELECTRONICS, LLC
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A balanced armature receiver comprising:
a yoke retaining first and second permanent magnets in spaced-apart relation;
a coil assembly having a coil tunnel; and
an armature having a portion coupled to the yoke, a movable portion that extends through the coil tunnel, and an end portion located at least partially between the magnets, wherein the end portion is free to deflect between the magnets in response to an excitation signal applied to the coil assembly,
a stationary protrusion extending from a stationary portion of the receiver toward the movable portion of the armature; and
a movable protrusion extending from the movable portion of the armature toward the stationary portion of the receiver, wherein the stationary and movable protrusions are offset laterally.