| CPC H04R 1/2811 (2013.01) [H04R 7/04 (2013.01); H04R 7/18 (2013.01); H04R 9/045 (2013.01); H04R 9/06 (2013.01); H04R 2400/11 (2013.01)] | 20 Claims |
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1. A microspeaker, comprising:
a frame defining a space;
an actuator positioned within the space, the actuator including a diaphragm configured to vibrate in a first direction during operation of the actuator, wherein a center axis of the diaphragm extends in the first direction; and
a plate assembly mechanically coupled to the frame and defining a path for venting fluid from the space, the plate assembly comprising:
a first plate extending in a plane orthogonal to the first direction, the first plate defining one or more first apertures, the one or more first apertures being offset from the center axis in the plane; and
a second plate defining a second aperture intersected by the center axis, a first side of the second plate including:
an inner region abutting the second aperture; and
an outer region abutting the inner region, the inner region being recessed relative to the outer region,
wherein the first plate is mechanically coupled to the second plate with the first side of the second plate facing the first plate, the first plate and the inner region of the second plate defining a channel that fluidly couples the one or more first apertures to the second aperture.
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