Patent ID: 11917350
Assignee: APPLE INC.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H | IPC H

Claim 14:
15. An electronic device, comprising:
a device housing; and
a loudspeaker coupled to the device housing, the loudspeaker comprising:
a speaker housing,
a diaphragm coupled to the speaker housing,
a motor system to cause motion of the diaphragm in an axial direction, wherein the motor system includes a voice coil coupled to the diaphragm, a center magnet coaxial with the voice coil and having a hole along a central axis, and one or more side magnets, and
a lead wire connected to the voice coil, wherein the lead wire includes an elastic portion having a plurality of turns that form a helical portion configured to extend and compress in the axial direction, and the helical portion is within the hole.