A speaker assembly with a readily replaceable cone that is mounted to a depression 24 within a peripheral channel 22. The cone 30 is kept in place with a ring 40 that coacts with the cone 30 at a peripheral step 35 located a predetermined distance from the cone's distal end 32a. Fastening members 50 keep the ring 40 secured to basket assembly 20 reducing the performance fatigue of cone 30.

A vibration diaphragm and a manufacturing method thereof are provided. The vibration diaphragm comprises an annular support member, a first vibration diaphragm layer and a circuit layer. The first vibration diaphragm layer is fixedly connected to a support body of the annular support member. The circuit layer is positioned on a surface of the first vibration diaphragm layer that is adjacent to a vibrating voice coil and is fixedly connected to the first vibration diaphragm layer and the support body. The circuit layer is provided with a circuit area, a capacitance area, and a capacitance solder pad. The capacitance area is a capacitance electrode plate formed on the first vibration diaphragm layer. The capacitance area is communicated with the capacitance solder pad by means of the circuit area. The solder pad corresponds to the support body. The reliability of capacitance data acquisition is improved.

A speaker diaphragm includes a protruding dome portion formed at a center portion of the speaker diaphragm, and an annular cone portion extending from an outer peripheral edge of the dome portion in a direction inclined with respect to a protrusion direction of the dome portion. The dome portion and the cone portion are, in a seamless manner, integrally formed of a sheet material made of magnesium or magnesium alloy, and an outer peripheral end of the cone portion at least extends to a substantially identical height position to a maximum protrusion position of the dome portion. An annular step portion for attachment of a cylindrical voice coil bobbin is provided along a boundary portion between the dome portion and the cone portion.

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 speaker assembly with a readily replaceable cone that is mounted to a depression 24 within a peripheral channel 22. The cone 30 is kept in place with a ring 40 that coacts with the cone 30 at a peripheral step 35 located a predetermined distance from the cone's distal end 32a. Fastening members 50 keep the ring 40 secured to basket assembly 20 reducing the performance fatigue of cone 30.

The present disclosure provides a vibration diaphragm. The vibration diaphragm includes a vibration part; a suspension extending from and surrounding the vibration part; and a pattern module part formed on the vibration part. The pattern module part includes a protrusion extending outwardly from the vibration part and having a groove recessed inwardly toward the vibration part; a partition dividing the groove into at least two rooms; and a second protrusion located in each of the rooms. By virtue of the configuration of the pattern module part, the solution described by the present embodiment increases the surface area of the vibration part, and widens the bandwidth of the vibration diaphragm, and further improves the acoustic performance of the diaphragm.

An MEMS microphone is disclosed, which comprises a substrate and a vibrating diaphragm and a back electrode which are located above the substrate, a plurality of comb tooth parts are formed in edge positions of the vibrating diaphragm, and the plurality of comb tooth parts are distributed in a peripheral direction of the vibrating diaphragm at intervals, wherein a position between every two adjacent comb tooth parts on the vibrating diaphragm is connected to the substrate via an insulating layer; and the comb tooth parts on the vibrating diaphragm are at least partially overlapped with the substrate, and a clearance exists between the comb tooth parts and the substrate and is configured as an airflow circulation channel. The microphone of the present invention has better impact resistance and can avoid intrusion of dust.

A method is provided for manufacturing a speaker diaphragm manufactured using a sheet material made of magnesium or magnesium alloy and including an annular cone portion along an outer peripheral edge of a dome portion. The method includes a dome preformation process of forming a dome preformation portion; a cone preformation process of forming an annular cone preformation portion; and a shaping process of shaping the dome preformation portion into the dome portion by pressing, shaping the cone preformation portion into the cone portion whose outer peripheral end at least extends to a substantially identical height position to a maximum protrusion position of the dome portion, and forming, along a boundary portion between the dome portion and the cone portion, an annular step portion to which a voice coil bobbin is attached.

The present application provides a speaker, which comprises a housing as well as a magnetic circuit system and a vibration system arranged the housing, the vibration system comprises a planar first voice coil which can generate mechanical motion under the action of a magnetic field of the magnetic circuit system, a planar first vibration diaphragm driven by the first voice coil, and the first voice coil is arranged on the first vibration diaphragm; the magnetic circuit system comprises a plurality of magnets, a gap is formed between the magnets, and at least a portion of the first voice coil corresponds to the gap between the magnets. The present speaker is different from a conventional moving-coil type speaker, and the speaker can be made smaller than a conventional moving-coil type speaker and with respect to high frequency performance, the speaker has higher sound pressure and a better bandwidth.

A loudspeaker with a non-uniform surround, a membrane and a stiffening element preventing the surround from flexing the membrane during operation. A non-uniform surround does not have the same cross section, along the radius of the speaker if circular, all around the perimeter of the membrane as some portions will be upwardly directed and other portions downwardly directed.