The invention discloses a manufacturing method of a speaker vibrating diaphragm by controlling a ratio of fiber materials, the method comprising the steps of: (A) fabric provision: providing a fabric interwoven by a plurality of warps and a plurality of wefts; (B) impregnation: impregnating the fabric in a resin solution; (C) drying: drying the fabric impregnated with resin solution; (D) formation: pressing the dried resin-impregnating fabric to form a predetermined shape; and (E) cutting: cutting the formed speaker vibrating diaphragm from the fabric. Each of the plurality of warps and each of the plurality of wefts of the fabric has an individual yarn count and material composition. By controlling a combination of the yarn counts of the plurality of warps and the plurality of wefts, a total number of threads and a material composition ratio of the warps and wefts required for the vibrating diaphragm are achieved.

Provided are an acoustic diaphragm and an acoustic device including the same. The acoustic diaphragm may include graphene nanoparticles, and an average particle size of the graphene nanoparticles may be about 10 nm or less. The graphene nanoparticles substantially may have a particle size of about 1 nm to about 10 nm. The graphene nanoparticles may include at least one functional group selected from a hydroxyl group, a carboxyl group, a carbonyl group, an epoxy group, an amine group, and an amide group.

A display apparatus includes a display module including a display panel configured to display an image, a rear cover on a rear surface of the display module, and a sound generating module at the rear cover and configured to vibrate the display module to generate sound, and a rear surface of the sound generating module is covered by the rear cover.

A mid-range loudspeaker, including a frame, a diaphragm arranged on the frame, a magnetic circuit system arranged on the frame, and a voice coil connected to the diaphragm. The diaphragm includes a honeycomb plate having a front surface and a back surface. Covering films respectively cover the front surface and the back surface of the honeycomb plate. The honeycomb plate is provided with a plurality of holes.

A display apparatus includes a display module including a display panel configured to display an image, a rear cover on a rear surface of the display module, and a sound generating module at the rear cover and configured to vibrate the display module to generate sound, and a rear surface of the sound generating module is covered by the rear cover.

An audio amplified combustion system is described that has a fuel injector a positioned proximate to a speaker so that a flame moves in concert with audio emitted from the speaker. A projection column and projection top can be positioned above the cone of the speaker to define a volume for the combustion. Various apparatuses, methods, and systems for keeping the speaker cool are also described. Coating on various parts of the system to increase or decrease emissivity or absorptivity of various parts can keep the speaker cool. In addition, a control unit can cause the speaker to pant or vibrate at a low or high frequency to induce convective and keep the speaker cool. These and other features of the audio amplified combustion system are described herein.

A loudspeaker diaphragm includes resin and hollow glass member particles contained in the resin. Further, a loudspeaker includes the above-described loudspeaker diaphragm, a magnetic circuit, a frame connected to the magnetic circuit, and a voice coil body having one end connected to the loudspeaker diaphragm and the other end disposed inside a magnetic gap in the magnetic circuit.

An ultrathin assembled speaker cone includes a support frame and a vibrating diaphragm. The support frame has a first support portion, a second support portion, and a connecting portion connected between the first support portion and the second support portion. Through the vibrating diaphragm, the problem that the conventional speaker cone is not sufficiently lightweight is effectively solved, and the material of the vibrating diaphragm may have more diverse options.

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 diaphragm, including: a metal dome, a non-metallic diaphragm portion, and a flexible rim. The non-metallic diaphragm portion is bonded to a metal dome outer periphery, and a non-metallic diaphragm portion outer periphery extends corresponding to a convex direction of the metal dome and expands radially away from the metal dome. The flexible rim is bonded to the non-metallic diaphragm portion outer periphery. The diaphragm of the present application adopts the combination of the metal dome, the non-metallic diaphragm portion, and the flexible rim, the overall rigidity of the diaphragm is enhanced, and the internal damping property of the diaphragm and the compliance of the vibration of the diaphragm can be adjusted, which can effectively reduce segmentation vibration of the diaphragm during high-frequency vibration and reduce the segmentation distortion of the diaphragm at high frequencies, thereby extending the bandwidth of the diaphragm.