An electronic speaker comprising: a device housing defining an interior cavity and including a sidewall extending around the interior cavity between an upper portion and a lower portion of the device housing; first and second sound channels formed at opposing locations along the sidewall, each of the first and second sound channels comprising a plurality of openings formed through the sidewall; a passive radiator array comprising first and second passive radiators disposed within the interior cavity, spaced apart from each other in an opposing relationship and aligned to project sound through the first and second sound channels; an active driver disposed in the device housing and configured to generate sound in response to an electrical signal, the active driver comprising driver housing disposed at least partially between the first and second passive radiators, a magnet disposed within the driver housing, a voice coil and a diaphragm facing downwards towards the lower surface of the device housing; and an annular sound channel disposed along the bottom portion of the device housing adjacent to the diaphragm of the active driver.

An acoustic diaphragm 1 according to the present invention includes a center dome member, and a sub dome member. The center dome member includes a center dome 2 and an annular first plane part 2a that is disposed along the outer periphery of the center dome and formed integrally with the center dome. The sub dome member includes a sub dome 3 and an annular second plane part 3a that is disposed along the inner periphery of the sub dome and formed integrally with the sub dome. The first plane part includes a rising part 2b of the center dome, a first front surface, and a first back surface. The second plane part includes an inner peripheral edge 3b, a second front surface, and a second back surface. The center dome is formed of a material different from that of the sub dome. The sub dome surrounds the periphery of the center dome. The inner peripheral edge coincides with the rising part. The first front surface is joined to the second back surface.

This disclosure provides systems, methods, and apparatus related to acoustic transducers.

An edge including an inner notch extending in a diaphragm-side region, and an outer notch extending in a frame-side region near the inner notch, in which the inner notch and the outer notch have a depression with a depth equal to or larger than a thickness, and an angle B formed by an extending direction of the outer notch with respect to a line radially extending from an edge center is larger than an angle A formed by an extending direction of the inner notch with respect to the line.

The present application relates to an improved flat panel loudspeaker design. According to some aspects, the loudspeaker may include a flat panel, and a driving unit coupled to the flat panel configured to produce resonant behavior in the flat panel according to an electrical signal received by the driving unit. One or more pieces of reticulated foam may be mechanically coupled to the flat panel, and in some cases may cover the entire surface of the flat panel.

The invention discloses a diaphragm and a sound generator having a diaphragm. The diaphragm includes a dome part arranged centrally and a suspension part surrounding the dome part. The suspension part is provided with pleat groups. The pleat group includes many pleats, and each pleats includes a first pattern section, a second pattern section, and a third pattern section connecting the first pattern section and the second pattern section. The height of the third pattern section along the vibration direction is smaller than the protrusion height of the first pattern section and the second pattern section along the vibration direction. The diaphragm of the present invention can be used to reduce low frequency distortion.

The present invention discloses a speaker, which includes a basket, a vibration system fixed to the basket, and a magnetic circuit system arranged in the basket. The vibration system includes a first diaphragm fixed to the basket and a second diaphragm oppositely separated from the first diaphragm, the magnetic circuit system includes an upper clamping plate fixed to the basket, and the upper clamping plate is disposed separately from the second diaphragm. The upper clamping plate includes a fixing portion fixed to the basket, the upper clamping plate is provided with a step recessed towards the first diaphragm from one side of the upper clamping plate facing away from the first diaphragm, and the step is connected with the fixing portion.

A speaker module including an inclined diaphragm and to an electronic device is provided. The speaker module includes the speaker module, the speaker module including a yoke configuring one surface of the speaker module, a magnet including one surface arranged on an inner surface of the yoke, a frame configuring a side surface of the speaker module and including a first end portion connected to the yoke, a voice coil spaced apart from the magnet and including at least a portion overlapping the magnet, and a diaphragm comprising an inner surface on which the voice coil is arranged. The diaphragm is connected to a second end portion opposite to the first end portion of the frame and is inclined to be non-perpendicular to an outer surface of the frame, so that a sound in a high-frequency band output through the speaker module can be smoothly transmitted outside the electronic device.

A speaker diaphragm includes a mixed layer. The mixed layer includes cellulose nanofibers, and polyparaphenylenebenzobisoxazole fibers. An average length of the polyparaphenylenebenzobisoxazole fibers is 0.5 mm or more and 4.0 mm or less.

A passive radiator includes a frame, a vibrating member, a surround and a plurality of strengthening ribs. The vibrating member is disposed in the frame. The surround includes a first arc portion and a second arc portion. The first arc portion is connected to the frame. The second arc portion is connected to the vibrating member. The first arc portion and the second arc portion are connected to form an S shape. The strengthening ribs are connected to the first arc portion and the second arc portion. A thickness of the strengthening rib corresponding to the first arc portion is larger than a thickness of the strengthening rib corresponding to the second arc portion. Furthermore, the passive radiator may include a plurality of reinforcing ribs connected to the first arc portion. Moreover, a thickness of the first arc portion may be larger than a thickness of the second arc portion.