Micro-speaker

摘要

A micro-speaker is disclosed. The micro-speaker includes a frame, a magnetic circuit unit in the frame, a diaphragm, and a voice coil connected to the diaphragm. The frame includes a plurality of blocks for positioning the magnetic circuit unit. The voice coil includes a pair of lead wires. The block has an upper surface, a side surface and a bottom surface treated by laser direct structuring process for electrically connecting to the lead wires of the voice coil.

主权项

1. A micro-speaker, comprising:
a frame made of plastic and providing a cavity bounded by a sidewall, the frame further including a plurality of blocks extending from the sidewall into the cavity, the block including an upper surface, a side surface, and a bottom surface connecting to the upper surface via the side surface; a magnetic circuit unit accommodated in the cavity and positioned by the blocks, the magnetic circuit unit having a magnetic gap; a voice coil having lead wires and partially suspending in the magnetic gap, the lead wire of the voice coil connecting with the upper surface of the block; a diaphragm facing the magnetic circuit unit and connected to the voice coil for radiating sounds; wherein the upper surface, the side surface and the bottom surface are electrically connected to each other by laser direct structuring process.