A sounding device includes a bracket having a receiving space, a vibration system, and a magnetic circuit unit. The magnetic circuit unit drives the vibration system to vibrate. The magnetic circuit unit includes a first magnetic body, a second magnetic body, and a yoke. The yoke includes a bottom wall, a first sidewall, and a second sidewall. The first sidewall and the second sidewall is fixed to the bracket. The first sidewall and the bottom wall form a first groove accommodating the first magnetic body, and the second sidewall and the bottom wall from a second groove accommodating the second magnetic body. An opening of the first groove is oriented opposite to an opening of the second groove. The vibration system includes first and second vibration portions. The magnetic circuit unit is arranged between the first and second vibration portions. In this way, a thin sounding device can be realized.

Disclosed is a sound generator, including a bracket, and a vibration system and a magnetic circuit system. The vibration system includes a first vibration diaphragm, s a second vibration diaphragm, a first voice coil driving the first vibration diaphragm, and a second voice coil driving the second vibration diaphragm. The magnetic circuit system includes an iron core, a magnet assembly, and a magnetic frame. The first voice coil is disposed between the magnetic frame and the magnet assembly, and the second voice coil is disposed between the magnet assembly and the iron core. Therefore, two magnetic circuit structures are provided in the same magnetic frame space and drive the first vibration diaphragm and the second vibration diaphragm to vibrate and generate sound in different directions respectively, which improves the utilization efficiency of the magnetic circuit system while saving space, thereby improving the sound generation performance of the sound generator.

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.

A sounding device includes a positioning bracket, a vibration system including diaphragm and voice coil, and a magnetic circuit system including yoke fixed to the positioning bracket and magnet. The yoke includes yoke body fixed to the magnet, yoke sidewall bending and extending from periphery of the yoke body to the diaphragm, and yoke extension portion bending and extending from the yoke sidewall to the positioning bracket. The positioning bracket includes positioning bracket body and positioning slot formed by depression from one side of the positioning bracket body close to the yoke to the diaphragm. One side of the yoke extension portion close to the diaphragm abuts against a bottom surface of the positioning slot. One end of the yoke extension portion away from the yoke sidewall is fixed to the positioning bracket. The sounding device has a simple structure, high strength, easy assembly and positioning, and high reliability.

A method for manufacturing a loudspeaker having a wire damper with locally adjustable elasticity, including preparation, impregnating, drying, wire disposing, forming, cutting and assembling steps. Wherein, a wire damper including a main body and a wire is thermoformed on a base material. The main body includes a wave structure and a wire disposing area. The wave structure includes wave crest and trough, and inner and outer sidewalls. The wire disposing area forms a hollow portion in which the wire extends. The warp yarns at outside and inside of the wire disposing area form an elastic adjustment area. The hollow portion has smaller depths at the inner and outer sidewalls than at the wave crests and troughs. Thereby, the wire will not be damaged by thermal pressurization, and the hardness, elasticity and toughness of the combination of the wire disposing area and the wire are equal to that of other areas.

The invention discloses a conductive plane damper, which includes an outer circle, an inner circle and several connecting parts; several the connecting parts are evenly distributed between the outer circle and the inner circle, connecting the outer circle and the inner circle; the conductive plane damper are provided with at least two pairs of voice coil welding points and wire welding points; the voice coil welding points are arranged on the inner circle, the wire welding points are arranged on the outer circle. The speaker with the conductive plane damper avoids the usage of the lead wire and the speaker losing sound because of breaking of the lead wire, thereby greatly reducing the thickness of the conductive plane damper and increasing the quality of the speakers.

A micro speaker with amplitude stability, includes a vibrating diaphragm unit, a magnetic unit which is disposed below the vibrating diaphragm unit, and a circuit unit which is disposed between the vibrating diaphragm unit and the magnetic unit. The vibrating diaphragm unit includes a diaphragm which is connected with a voice coil; whereas the diaphragm and the voice coil are connected electrically by an upper fixing arm on the vibrating diaphragm unit, and a pair of flexible circuit board disposed in the circuit unit. The circuit unit also includes plural lower fixing arms to connect and support the flexible circuit boards. Therefore, when an external power source energizes the circuit unit, the voice coil can drive the diaphragm to generate a stable amplitude along the height of the magnetic element, through the upper fixing arm and the lower fixing arms.

A bone conduction speaker with a conductive damper includes an outer bracket and a U-yoke; a centre of the U-yoke forms a U-shaped groove; the U-shaped groove of the U-yoke has a magnet, a top of the magnet is provided with a spring washer; between the magnet and the U-yoke, there is an annular space; a top of the U-yoke is provided with an annular bracket, a top of the annular bracket is provided with a conductive damper; the conductive damper includes an outer circle, an inner circle and several connecting parts, the inner circle is fitted with a voice coil; a central position of the inner circle is fitted with a pillar, a middle of the pillar is provided with a round shrapnel, a top of the pillar is provided with a conduct piece; a periphery of the round shrapnel is fitted on the outer bracket.

Example embodiments disclosed herein relate to a transducer assembly and associated signal processing. A transducer assembly includes two voice coils in a telescopic arrangement and having unequal sizes, and two suspension systems connected to the two voice coils, respectively. The two voice coils extend in opposites directions from their suspension systems. Dimensions of respective wires of the two voice coils are determined based on respective magnetic flux densities in magnetic gaps for receiving the two voice coils. As a result, a residual vibration caused by the unequal-sized voice coils can be further reduced.

A panel vibration type sound generating display device is disclosed. The display device includes a display panel for displaying an image; a sound generating actuator connected to the display panel and configured to vibrate the display panel to generate sound; a support structure spaced apart from the display panel with an air gap between the support structure and the display panel; and a baffle part disposed between the support structure and the display panel to surround the air gap.