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.

The present invention provides a multi-engine array system and a loudspeaker. The multi-engine array system comprises at least two engine assemblies; the at least two engine assemblies are mounted, in an array, at the bottom of a basin stand of a loudspeaker, each of the engine assemblies comprises a voice coil configured with a voice coil skeleton and a magnetic circuit system which provides a magnetic field for the voice coil, the magnetic circuit system comprising a magnetic bowl, a magnet and a magnetic conductive plate, the magnetic bowl being mounted at the bottom of the basin stand, the magnet and the magnetic conductive plate being located within the magnetic bowl, a magnetic gap being formed between the magnetic bowl, the magnet and the magnetic conductive plate, the voice coil being suspended in the magnetic gap, and cross sections of the voice coil and the magnetic circuit system both being rectangular. The present invention has a wide application range, is able to effectively reduce power consumption, improve efficiency of the loudspeaker, reduce resonance frequency and improve heat dissipation effects, and is able to reduce various distortions such as nonlinear distortion by means of cooperation and restriction of multiple engine assemblies.

Provided are a speaker unit and a speaker device. A main body of the speaker unit is a rectangular bowl-shaped structure, and comprises a suspension system, a magnetic circuit system having an annular magnetic gap, and a bowl-shaped frame connecting the suspension system and the magnetic circuit system. The bowl-shaped frame accommodates the suspension system and the magnetic circuit system. The magnetic circuit system is fixed to the interior of the bowl-shaped frame. The suspension system comprises a diaphragm and at least one voice coil connected to a bottom portion of the diaphragm. The magnetic circuit system comprises at least one magnetic circuit assembly matching the voice coil. One end of the voice coil is connected to the diaphragm by means of a voice coil frame. The other end of the voice coil is suspended within an annular magnetic gap of the magnetic circuit assembly. The voice coil can perform piston-like reciprocating motion in an axial direction in the annular magnetic gap so as to push the diaphragm to vibrate and emit sound. The present invention employs multiple engines to drive the same diaphragm to vibrate, such that vibration is more uniform and stable, thereby reducing nonlinear vibration, and controlling a magnitude of resistance (RE). The invention has a wide range of applications and an attractive appearance, and realizes efficient heat dissipation.

The electrodynamic loudspeaker (10), comprising: a fixed frame (12), a motor including a fixed base (14) connected to the fixed frame (12) and a part (16) movable axially relative to the fixed base (14) along an axis (A-A′), a convex membrane (18), the convexity of which is oriented toward the outside of the loudspeaker (10), and a truss (20) connecting the convex membrane (18) and the moving part (16). The truss (20) comprises an inner ring (46) and an outer ring (48) that are coaxial, connected to one another by radial pillars (50) and a crown (52) for fastening to one end (53) of the moving part (16), the convex membrane (18) being fastened bearing on the inner and outer rings (46, 48).

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.

The present disclosure provides an underwater speaker. The underwater speaker includes an outer shell, with a circuit board arranged inside, a speaker, and a lampshade with a first opening at the top. The speaker is electrically connected to the circuit board. The luminescent body is arranged on the circuit board. The luminescent body is oriented towards the interior of the lampshade, and a graphic mapping unit is formed on the lampshade. This embodiment uses the speaker to play audio and achieve the function of an underwater speaker. When the luminescent body emits light, the light can be mapped onto the water. This improves the multiplicity and effect of light and shadow, and meets users' needs for complex and multi-element light and shadow effects.

The present disclosure discloses a sensitive diaphragm comprising a diaphragm body, an edge region of the diaphragm body being provided with a rim structure, wherein the rim structure is in a non-closed annular shape, a non-closed region is located at a part not closed by the rim structure, and the non-closed region are integral and continuous with parts of the diaphragm body adjacent to the rim structure. According to the sensitive diaphragm of the present disclosure, the annular rim structure is separated by the non-closed region

The present invention provides methods and systems for a surround device that includes a generally circular arcuate portion that contains a first side and a second side, a first planar portion extends from the first side and a second planar portion extends from the second side, a plurality of outwardly facing ribs are disposed on the first side, and a plurality of inwardly facing ribs are disposed on the second side.

A speaker includes a main-cone and a sub-cone. Linear thin portions configured to reduce a plate thickness of the sub-cone are formed on a region containing at least any one of an outer side and an inner side of the sub-cone. Each of the linear thin portions has both of a component in a radial direction and a component in a circumferential direction of the sub-cone. First and second linear thin portions cross each other at an intersection. With this configuration, stiffness of the whole sub-cone is reduced to enhance a divided vibration of the sub-cone. In particular, a vibrational displacement of an outer peripheral portion of the sub-cone, from which a sound is mainly radiated, is increased.

The present disclosure provides a micro sound device. The micro sound device includes a basket having an accommodating space, a vibration system secured to the basket, and a magnetic circuit system accommodated in the basket and configured to drive the vibration system to vibrate and produce sound. The vibration system includes an upper diaphragm secured to the basket, a voice coil located below the upper diaphragm and configured to drive the upper diaphragm to vibrate and produce sound, and a support apparatus elastically supporting the voice coil. The support apparatus is disposed opposite to the upper diaphragm and separately from the upper diaphragm. The magnetic circuit system includes an upper clamping plate secured to the basket. One end of the support apparatus is fixed to one side of the upper clamping plate and the other end of the support apparatus is fixed to the voice coil.