A sounding device includes a frame, a vibration system, and a magnetic circuit system having a magnetic gap. The vibration system includes a diaphragm fixed to the frame, a voice coil inserted in the magnetic gap to drive the diaphragm to vibrate, a framework connected to the diaphragm, and an elastic conductor fixed to the frame and connected to one side of the framework away from the diaphragm. One end of the voice coil has a lead wire. The framework and the voice coil define a receiving space. The elastic conductor includes an elastic conductor body fixed to the frame, first to third connectors, first and second bending arms. The first bending arm is spaced apart from the second bending arm. The lead wire is fixed to and electrically connected to the third connector. The sounding device has a good consistency in bending size and high pad position precision.

Provided is a speaker box, including a housing having a receiving space and a speaker unit received therein. The housing extends into the receiving space to form a support wall. The speaker unit is supported by and fixed to the support wall. The housing has a sound output hole. The speaker unit includes a frame, a vibration system and magnetic circuit unit fixed to the frame, and a front cover covering the frame. The front cover is supported by and fixed to the support wall. The front cover includes a main body portion located above the vibration system, a side edge portion and a fixed portion covering the frame. The fixed portion is supported by and fixed to the support wall. The front cover has a through hole running through both the main body portion and the side edge portion. The speaker box has excellent sound quality.

Provided is a speaker, including: a frame, a vibration unit including a diaphragm, and a voice coil; a magnetic circuit unit including a yoke and a magnet, the magnetic circuit unit being provided with a magnetic gap; and a lower diaphragm. The voice coil is inserted in the magnetic gap to drive the diaphragm to vibrate and produce sound; the lower diaphragm includes an inner connecting portion, an outer connecting portion, and an intermediate portion; the lower diaphragm includes a structural layer and a metal layer; the inner connecting portion includes a first recess, and the outer connecting portion includes a second recess; and the voice coil is electrically connected to the metal layer through the first recess, and the metal layer is electrically connected to an external circuit through the second recess. With this structure, internal space of the speaker is saved, reducing material cost and improving reliability.

A loudspeaker assembly for a vehicle includes a loudspeaker having a first side and an opposed second side, wherein the loudspeaker is configured to generate an acoustical signal having a front wave directed into an interior of the vehicle and a rear wave directed toward an exterior of the vehicle. The loudspeaker assembly further includes a coupler disposed on the second side of the loudspeaker, the coupler including an inlet portion for receiving the loudspeaker and an outlet portion. A flexible port is removably connectable to the coupler, the flexible port including an inlet end arranged to be connected to the outlet portion of the coupler, an outlet end arranged to be connected to an opening in an exterior body panel, and an elongated body extending between the inlet end and the outlet end, the flexible port configured to transmit the rear wave to the exterior of the vehicle.

A loudspeaker unit for producing sound at bass frequencies an array of two or more diaphragms. The first radiating surface and the second radiating surface are located on opposite faces of the diaphragm, and one or more of the diaphragms are included in a first subset of the diaphragms and one or more of the diaphragms are included in a second subset of the diaphragms; a plurality of drive units.

Provided is a sounding device, including frame and vibration system and magnetic circuit unit fixed to the frame. The vibration system includes diaphragm, voice coil driving the diaphragm to vibrate and sound, holder fixed to diaphragm, and auxiliary diaphragm spaced from diaphragm. The holder includes holder main body, first connection portion formed from holder main body to magnetic circuit unit and second connection portion spaced from first connection portion. The voice coil is fixed to second connection portion. One end of the auxiliary diaphragm is fixed to frame. One end of first connection portion away from holder main body bends and extends away from second connection portion to form flange. One end of auxiliary diaphragm away from frame is fixed to flange. The sounding device may reduce accuracy deviation and hidden dangers of gluing failure caused by rear assembling of the auxiliary diaphragm.

An embodiment relates to a speaker and a speaker module. The speaker comprises a vibration system and a magnetic circuit system; the vibration system comprises a diaphragm and a voice coil coupled to the diaphragm; a space between a front side of the diaphragm and a front sound cavity cover forms a front sound cavity, and a space between a back side of the diaphragm and a rear sound cavity cover forms a rear sound cavity; wherein the speaker further comprises a plurality of injection molding inserts disposed along a vibration direction of the diaphragm, and the injection molding insert comprises a first end and a second end; the first end is joined with a surface of the front sound cavity cover close to the diaphragm, and the second end is joined with a surface of the rear sound cavity cover close to the diaphragm. One technical problem to be solved by the embodiment of the present invention is to ensure, by using the injection molding inserts, the stability of relative distance and parallelism of the diaphragm connection surface of the housing with respect to both the front sound cavity support surface and the rear sound cavity support surface, so as to ensure stability of the acoustic performance of the speaker.

Provided is a sound-absorbing material, including a metal-organic framework material having a microporous structure. The metal-organic framework material includes a coordinated metal M and organic framework materials (OFs) coordinated with the coordinated metal. The microporous structure includes a plurality of uniformly distributed micropores, and a diameter of each of the plurality of micropores is within a range of 0.3 nm to 1.2 nm. The sound absorbing material including the metal-organic framework material can be added into a speaker to increase the acoustic compliance of air in a rear cavity of the speaker, thereby improving the performance of the speaker in a low frequency range.

Disclosed are sound output equipment that exhibits high efficiency while having a slim structure and a display device including the same.

A speaker system is provided with a housing adapted to mount to a support. A driver is supported by the housing and arranged to project sound about a first axis extending at an offset angle relative to a longitudinal axis extending from the housing. A waveguide extends from the driver to define a cavity extending along the first axis. The waveguide includes a first segment formed at a first angle relative to the longitudinal axis, and a second segment formed at a second angle relative to the longitudinal axis, wherein the second segment is arranged opposite the first segment and the second angle is greater than the first angle to collectively provide an asymmetrical sound pattern in a first plane.