The present disclosure relates to a speaker and a speaker module, and the speaker comprises: a housing and a vibration system housed within the housing, wherein the vibration system comprises a diaphragm and a voice coil, the voice coil is bonded onto a central portion of the diaphragm, and the voice coil has a lead wire; an end surface of the housing connected to a fixed portion of the diaphragm is provided thereon with a conductive portion; a portion of the lead wire located between the fixed portion and the housing is configured to expose the lead wire and form an exposed conductive end, and when the fixed portion is fixedly connected to the housing, the exposed conductive end is crimped onto the conductive portion and is electrically connected to the conductive portion. One technical problem to be solved by the present utility model is how to avoid the occurrence of false welding when the lead wire is connected to the conductive portion of the housing during an assembling process, thereby avoiding the problem of poor contact.

An electromagnetic actuator includes an inner magnet arranged relative to an axis, an outer magnet arranged a radial distance from the axis, an inner radial wall of the outer magnet facing an outer radial wall of the inner magnet, the inner and outer radial walls being separated by an air gap, a voice coil arranged in the air gap separating the inner and outer magnets, and an actuator coupling plate attached to the voice coil. During operation of the device electrical activation of the voice coil causes axial motion of the actuator coupling plate.

A voice coil motor driving device and a method for providing control signals of the same are provided. The voice coil motor driving device includes a control module, a current driving module, and an input module. The current driving module outputs a plurality of digital current signals according to a driving signal, each of the plurality of digital current signals includes a plurality of current unit signals, and each of the plurality of digital current signals is arranged in a first time period, each of the plurality of digital current signals includes a plurality of reverse current unit signals, and the plurality of reverse current unit signals are arranged in a second time period, which is at a beginning of the first time period, or arranged in a third time period, which is at the end of the first time period.

A sound transmission device includes a main body, a first magnetic member, and a cover assembly. The main body includes a sound transmission opening. The first magnetic member is fixed to the main body and is adjacent to the sound transmission opening. The cover assembly includes an outer cover, a second magnetic member, and a fixing member. The second magnetic member is fixed between the outer cover and the fixing member. The cover assembly is magnetically attached to the first magnetic member through the second magnetic member, so that the outer cover covers the sound transmission opening. The outer cover includes a through hole, and the through hole is in communication with the sound transmission opening.

Disclosed is a sound-producing device, comprising: a housing having an accommodating room where a magnetic circuit system is installed; a voice coil including a bobbin and a voice coil body; a conductive member having a first connecting part fixed to the voice coil, a second connecting part fixed to the housing, and an elastic part located between the two connecting parts; the conductive member is combined on the voice coil body, the magnetic circuit system is provided with an avoidance part corresponding to the conductive member; the voice coil is provided with an inner conduction structure, the housing is provided with an outer conduction structure that is in electrical conduction with an external circuit; and upon being electrically connected with the inner conduction structure, the first connecting part passes through the avoidance part and extends to the housing, and is electrically connected with the outer conduction structure.

Disclosed is a sound-producing device including a voice coil, comprising a bobbin and a voice coil body wound outside the bobbin; and a damper having a first connecting part and a second connecting part; wherein the first connecting part is fixedly connected to the voice coil, and the second connecting part is fixed on the sound-producing device; there is provided a planar elastic member between the first connecting part and the second connecting part, the planar elastic member is bent and extends from the first connecting part to the second connecting part; the damper is made of conductive material, and is configured to establish electrical communication with the voice coil; the sound-producing device has a height in a vibration direction thereof ranging from 5 mm to 200 mm.

A speaker is provided. The speaker includes a housing. The speaker also includes a first diaphragm plate positioned within the housing and comprising a first driving device forming an exterior surface of the first diaphragm plate. The speaker further includes a second diaphragm plate positioned within the housing and comprising a second driving device forming an exterior surface of the second diaphragm plate. In addition, the speaker includes an insert plate fixedly attached to the housing and positioned between the first diaphragm plate and the second diaphragm plate. The insert plate includes an insert plate driving device positioned adjacent the first driving device and the second driving device. The insert plate driving device is configured to interact with the first driving device to move the first diaphragm plate relative to the housing and interact with the second driving device to move the second diaphragm plate relative to the housing.

The present invention relates to a stick-type vibrating driver and, more specifically, to a stick-type vibrating driver implemented so as to enable vibration to be transmitted, by using a planar movable coil plate and a stick-shaped magnet, to an object to be vibrated. The stick-type vibrating driver according to the present invention can comprise: an outer body formed in a stick shape; a magnetic circuit part formed inside the outer body, and having a pair of magnetic bodies spaced apart with the movable coil plate therebetween; a vibrating part formed inside the outer body, and vertically vibrating according to the driving of the magnetic circuit part in a state in which the upper and lower ends of the movable coil plate are fixed; and upper and lower metal suspensions respectively connected between the outer body and the vibrating part.

The present disclosure relates to a bone conduction speaker and its compound vibration device. The compound vibration device comprises a vibration conductive plate and a vibration board, the vibration conductive plate is set to be the first torus, where at least two first rods inside it converge to its center; the vibration board is set as the second torus, where at least two second rods inside it converge to its center. The vibration conductive plate is fixed with the vibration board; the first torus is fixed on a magnetic system, and the second torus comprises a fixed voice coil, which is driven by the magnetic system. The bone conduction speaker in the present disclosure and its compound vibration device adopt the fixed vibration conductive plate and vibration board, making the technique simpler with a lower cost; because the two adjustable parts in the compound vibration device can adjust both low frequency and high frequency area, the frequency response obtained is flatter and the sound is broader.

Provided is a small loudspeaker and a mid-treble loudspeaker with multi-input-drives, which increases the sensitivity of the small loudspeaker, improves the intelligibility of the small loudspeaker, and reduces the distortion, wherein the mid-treble loudspeaker with multi-input-drives comprises a sound membrane support, a sound membrane arranged on the sound membrane support, and a plurality of input driving mechanisms, each of the input driving mechanism comprises includes a voice coil and a magnetic circuit assembly for driving the voice coil to vibrate.