A speaker diaphragm and a molding method therefor are provided. The speaker diaphragm comprises: a lead wire; a lead wire enclosure portion, wherein the lead wire enclosure portion has a membrane part and support protrusions, the support protrusions are distributed on a surface of the membrane part, the thickness of the membrane part is larger than or equal to the diameter of the lead wire, the thickness of the overall lead wire enclosure portion is larger than the diameter of the lead wire, and a part of the lead wire is injection-molded in the lead wire enclosure portion; and a diaphragm layer, wherein the diaphragm layer is configured to form an overall structure of the speaker diaphragm, the thickness of the diaphragm layer is larger than or equal to the thickness of the overall lead wire enclosure portion, and the lead wire enclosure portion is injection-molded in the diaphragm layer.

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.

In at least one embodiment, a loudspeaker assembly is provided. The loudspeaker assembly includes a supporting ring, a flexible surround, a voice coil, a dome, and a bearing ring. The flexible surround includes a first end being attached to the supporting ring and a second end positioned opposite to the first end. The voice coil is positioned about the flexible surround. The dome is positioned about the voice coil and the second end of the flexible surround. The bearing ring is attached to the voice coil and separates the flexible surround from the dome.

The present invention provides an acoustic device including a frame, a magnetic circuit system and a vibration system. The magnetic circuit system includes a lower plate and a magnet assembly having a magnetic gap. The vibration system includes a diaphragm and a voice coil at least partially located in the magnetic gap. The frame includes a lower cover and a frame side wall. The vibration system is supported on the frame side wall. The lower plate includes a plate body spaced apart from the lower cover and a support wall bending and extending from the plate body toward the lower cover. The magnet assembly is supported and fixed on a surface of the plate body distal to the lower cover. The support wall abuts against and is fixed on the lower cover.

A suspension component may be used within a system for isolating vibrations produced by an electrical component. A body of the suspension component may be formed from a single piece of planar material. A suspension component includes a plurality of flexures. The plurality of flexures includes a first set of flexures configured to suspend a first sub-assembly of a transducer from support brackets, a second set of flexures configured to suspend a second sub-assembly of the transducer from the first sub-assembly, and a third set of flexures configured to suspend the second sub-assembly from the support brackets.

A dual suspension edge member structure for a radiation device, a dual suspension edge loudspeaker and a loudspeaker box. The radiation device comprises an outer supporting frame, a vibration element, a first suspension edge member extending between the vibration element and the outer supporting frame, an inner frame connected to the vibration element, an outer holding frame, and a second suspension edge member connected between the inner frame and the outer holding frame. The dual suspension edge member structure of the radiation device for making the dual suspension edge loudspeaker or loudspeaker box prevents shaking and shifting of the vibration element to improve the sound effect quality.

One or more holes are formed in a first diaphragm. A second diaphragm is arranged on a sound emitting side of the first diaphragm. A driver includes a magnetic circuit and a voice coil, and vibrates the first and second diaphragms. The second diaphragm includes a rigidity-reinforcing portion in which a rigidity of the second diaphragm is reinforced at a position facing at least one hole of the one or more holes.

Audio device and method for designing and making a diaphragm, the audio device comprising a diaphragm having a curved profile adapted for radiation of audio signals from a plurality of bending modes and a piston mode, one or more of the plurality of bending modes having coincident nodal line locations, the diaphragm having a frontal side and a rear side, and a transducer coupled to the rear side of the diaphragm, the transducer adapted for driving the diaphragm for radiation of audio signals having reduced audio distortion, wherein the plurality of bending modes each have minima locations throughout the diaphragm, and wherein the transducer is mounted on one of the minima locations of the plurality of bending modes and one or more impedance components are mounted on at least one of the remaining minima locations to inertially balance the diaphragm based on a pre-determined relative mean modal velocity limit.

Provided is a speaker, including a frame, a vibration unit fixed to the frame; and a magnetic circuit unit driving the vibration unit to vibrate and produce sound. The vibration unit includes a diaphragm and a voice coil; the diaphragm includes a first suspension, a second suspension and a vibrating portion; the magnetic circuit unit includes a magnetic gap, and the voice coil is inserted in the magnetic gap; the magnetic circuit unit includes a yoke; and the vibration unit further includes a fixing ring connected to the magnetic circuit unit; an inner peripheral side of the second suspension is fixed to an outer side of the fixing ring; and a connection position of the second suspension and the fixing ring is located between two opposite ends of the fixing ring along a vibrating direction of the diaphragm. With this structure, sealing performance of the speaker is improved.

The present invention provides an acoustic device including a frame, a magnetic circuit system, and a vibration system. The vibration system includes a diaphragm, a voice coil, and a support. The diaphragm includes a dome, a first suspension, and a second suspension. The diaphragm includes a first fixation portion, and the dome includes a dome body and a first dome extending wall bending and extending from the dome body, the first fixation portion connected to and wrapping the first dome extending wall.