Patent ID: 9338534
Filing Date: 2016-05-10
CPC Classification: H04R

Claim Text:
1. A miniature speaker, comprising: a frame including a sidewall, the sidewall including a top surface and a first step lower than the top surface; a magnetic circuit unit supported by the sidewall of the frame, the magnetic circuit unit including a yoke having a lower plate and a side extending from the lower plate, a magnet positioned on the lower plate, and a pole plate attached to the magnet; the side including an upper surface and a second step lower than the upper surface and coplanar with the first step; a diaphragm arranged above the magnetic circuit unit; a recess formed by the first step, the second step, a portion of the side above the second step, and a portion of the sidewall above the first step, the first and second steps forming a bottom of the recess, and the portions above the first and second steps forming an opening of the recess, the opening having an inner diameter greater than a width of each of the first and second steps; a voice coil having a lead wire for driving the diaphragm, the lead wire at least partially accommodated in the recess.