Patent ID: 9674615
Date: 2017-06-06
CPC Classifications: H04R

Claim:
1. A loudspeaker comprising: a diaphragm configured to vibrate to create sounds; a magnet assembly comprising a plurality of magnets and an air gap between the magnets; and a moving coil module comprising an electrically insulating substrate that is patterned with an electrically conducting material forming a coil shaped conductor trace thereon, wherein the substrate and the conductor trace are located in the air gap between the magnets and the moving coil module is attached to the diaphragm and the substrate extends from a surface of the diaphragm, wherein the moving coil module further comprises two or more ferromagnetic strips that contact the conductor trace, and wherein the two or more ferromagnetic strips, the conductor trace, and the electrically insulating substrate are encapsulated by a non-conductive cover that provides attachment of the coil module to the diaphragm.