The present disclosure discloses a diaphragm for radiating sound, including: a dome; a suspension surrounding the dome, including a first connecting portion adjacent to the dome and having a first surface and a second surface, a suspending portion extending from and surrounding the first connecting portion, and a second connecting portion extending from and surrounding the suspending portion. The suspending portion includes a convex part along a direction from the second surface to the first surface, an inner edge connecting to the first connecting portion, and an outer edge connecting to the second connecting portion. The diaphragm further includes glue layers located on corners of the first surface of the first connecting portion, extending from the inner edge toward the dome. The present disclosure further includes a speaker incorporating the diaphragm.

A method of forming a device having a compliant member includes providing an elastomeric layer in an uncured state. The elastomeric layer is pre-cured to increase its viscosity. Subsequently, a bobbin and housing, each having an end, can be positioned such that their ends extend at least partially into the elastomeric layer. The elastomeric layer is cured to secure it to the bobbin housing. Examples of pre-cure and cure operations include one or more of a thermal cure, evaporative cure and ultraviolet cure, and the application of moisture, microwave energy and chemical additive. Due to the increased viscosity after the pre-cure, the migration of elastomeric material is substantially reduced relative to an uncured elastomeric material. The reduction in elastomeric material migration results in smaller menisci formed along the walls of the housing and bobbin, and reduced thinning of the compliant member formed at their ends.

The invention provides a symmetrical dual-edge loudspeaker, comprising a frame and a cone paper, a U-shaped magnet and a voice coil mounted in the frame, wherein an accommodation chamber is formed in the middle of the U-shaped magnet; the voice coil is located in the accommodation chamber; the cone paper comprises a body and an upper edge and a lower edge bonded to the upper and lower sides of the body; the upper edge and the lower edge respectively protrude upwards and downwards, forming a symmetrical structure; the cone paper is fixedly connected to the frame via the upper edge and the lower edge; and the lower edge is provided with an air discharge hole. The invention effectively ensures steady up and down motion of the cone paper by disposing up-down symmetrical upper and lower edges, and enables a stiffness coefficient Kms to achieve optimal symmetry, thus satisfying an application requirement for an ultra-thin loudspeaker.

A thin speaker with a voice coil having a damper function, includes a frame, a magnetic device, a damper voice coil and a diaphragm. The damper voice coil comprises a holding member and a conductive member. The holding member includes a holding base and two holding suspension portions formed on two ends of the holding base. The conductive member includes a conductor wound to form a first winding at one side of the holding base and a second winding at the other side of the holding base, and two conductive suspension portions formed on two ends of the conductor and located on the top of holding suspension portions. Since the damper voice coil has the functions of a damper and a voice coil, the present invention is capable of maintaining a thin design and ensuring the up and down movements of the holding base to prevent its deflection.

A speaker, including: a magnetic circuit system, a vibration system, and a speaker support, the speaker support is provided with a mounting cavity, both the magnetic circuit system and the vibration system are mounted in the mounting cavity; the vibration system includes a metal diaphragm and a flexible connector; the metal diaphragm is placed in the mounting cavity; an inner periphery of the flexible connector is bonded to an outer periphery of the metal diaphragm, and an outer periphery of the flexible connector is bonded to an inner periphery of the speaker support. The overall rigidity of the vibration system of the speaker

Circumferential mode vibrations, in a diaphragm of an acoustic transducer, are damped by defining at least one elongated opening extending radially along a portion of a length from the central area to the outer perimeter being covered by a material having higher damping properties than the material of the cone.

Circumferential mode vibrations, in a diaphragm of an acoustic transducer, are damped by defining at least one elongated opening extending radially along a portion of a length from the central area to the outer perimeter being covered by a material having higher damping properties than the material of the cone.

Provided is a tweeter unit having an improved sound diaphragm and an integral support frame incorporating a sound diaphragm and a magnet as well as integrating an upper washer and a ring packing. The tweeter unit includes: a base frame; an improved integral support frame, including an upper clamp groove and a lower clamp groove, assembled at the base frame; at least one magnet, assembled in the lower clamp groove; an improved sound diaphragm, assembled in the upper clamp groove; and a sleeve frame, including a plurality of openings and a sleeve portion, and sleeved outside the base frame, the support frame, the at least one magnet and the improved sound diaphragm. The improved sound diaphragm includes a thin film layer and a circuit thin film layer, and the circuit thin film layer is fixed on one side of the thin film layer through an electrolytic bonding layer.

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.

A microfabricated structure includes a perforated stator; a first isolation layer on a first surface of the perforated stator; a second isolation layer on a second surface of the perforated stator; a first membrane on the first isolation layer; a second membrane on the second isolation layer; and a pillar coupled between the first membrane and the second membrane, wherein the first isolation layer includes a first tapered edge portion having a common surface with the first membrane, wherein the second isolation layer includes a first tapered edge portion having a common surface with the second membrane, and wherein an endpoint of the first tapered edge portion of the first isolation layer is laterally offset with respect to an endpoint of the first tapered edge portion of the second isolation layer.