Microspeaker acoustical resistance assembly

摘要

An electro-acoustic transducer is provided that comprises a diaphragm and a magnet assembly comprising a magnet and a back plate. The back plate comprises at least one first vent. The diaphragm generates sound during a movement of the diaphragm relative to the back plate. The transducer further comprises a printed circuit board comprising at least one second vent and a cavity between the printed circuit board and the back plate that separates the at least one first vent from the at least one second vent.

主权项

1. An electro-acoustic transducer, comprising:
a diaphragm; a magnet assembly comprising a magnet and a back plate having a central region at which the magnet is coupled, the back plate further having a peripheral region about an outermost periphery of a bottom region of the magnet, the back plate further comprising a plurality of first vents extending through the peripheral region of the back plate and positioned about the outermost periphery of the bottom region of the magnet, the diaphragm generating sound during a movement of the diaphragm relative to the back plate; a printed circuit board comprising at least one second vent at or near a periphery of the printed circuit board; and a cavity between the printed circuit board and the back plate that separates the plurality of first vents from the at least one second vent.