A MEMS microphone and a method for manufacturing a MEMS microphone are disclosed. Embodiments of the invention provide a MEMS microphone including a MEMS microphone structure having at least one counter electrode structure and a diaphragm structure deflectable with respect to the counter electrode structure and a thermocouple arranged at the MEMS microphone structure.

An electroacoustic diaphragm comprises a membrane, and an electrically conductive circuit carried by the membrane, such that a segment of the electrically conductive circuit is divided into two or more separate subcircuits. An electroacoustic transducer assembly comprises a frame, the novel diaphragm supported on the frame, and a magnetic element disposed adjacent the novel diaphragm whereby the transducer achieves uniform force distribution across the novel diaphragm. An audio device comprises a housing having an acoustic opening and the electroacoustic transducer including the novel diaphragm. Methods for constructing a transducer comprises determining the flux density of a magnetic field and configuring a diaphragm with separate subcircuits to correlate or inversely correlate to the flux density.

Disclosed is a reinforcing part for a speaker diaphragm. The reinforcing part includes a body layer, and the body layer includes through-holes penetrating surfaces of two sides of the body layer. The reinforcing part further includes fillers located within the through holes and configured for heat conduction. The fillers have a thermal conductivity higher than that of the body layer. The reinforcing part of the present invention improves the heat conduction capability between two sides of a support layer by providing through holes on the support layer and providing a heat-conducting filler within the through holes.

A vibration component includes a dome, a diaphragm, and a voice coil. The dome includes a porous heat dissipation layer, the diaphragm partially covers a portion of a surface of the dome, and the voice coil is connected with a side of the dome facing away from the diaphragm.

A transducer in which electrical connections between electrode sheets and leading wires can be secured via an approach other than soldering or welding is provided. In a sheet body portion, a dielectric layer and a first electrode sheet are joined by a first main fusion layer formed of a fusion material. A first conductive portion of a first leading wire is fixed to the sheet body portion by a first clamp. The first clamp includes a plurality of first leg portions that penetrates the sheet body portion in a thickness direction, a first coupling portion that couples the proximal ends of the plurality of first leg portions and is disposed across the first conductive portion, and a plurality of first bent-back portions that is formed by bending the respective distal ends of the plurality of first leg portions and is locked with a second surface of the sheet body portion.

A loudspeaker diaphragm (12) comprising a woven fibre body supports damping material (25), for example PVA polymer, on a rearward-facing surface (24). The woven fibre body may be formed of lengths (14) non-metallic fibre material (for example glass fibre) coating with a thin metal coating (32). The mass of the layer of damping material (25) may be less than the mass of the woven fibre body. An attractive sparkly looking loudspeaker diaphragm (12) may thus be provided which damps undesirable vibration whilst providing a flatter frequency-response curve (50).

Disclosed is a mid-range speaker. The operating range of the mid-range speaker can extend to 20 KHz, and the speaker has an improved high-frequency directivity. A mid-range speaker, comprising a basket, a diaphragm arranged on the basket, a magnetic circuit system arranged on the basket, and a voice coil connected to the diaphragm, wherein the diaphragm comprises a cellular board having a front face and a back face, and covering films respectively covering the front face and the back face of the cellular board; and the cellular board is provided with a plurality of holes.

The invention relates to a mobile loudspeaker apparatus for playing back sound. Mobile loudspeaker systems are often disadvantageous in that they have a poor sound quality or require equipment for a good sound quality that is not easy to transport. A loudspeaker apparatus which firstly provides a good sound quality and secondly is also easily transportable is desirable. Previously, these two requirements were often mutually exclusive. By way of a bistable membrane, or a membrane that is stable in more than two states, said membrane being coupleable to the loudspeaker apparatus, it is possible to manage the balancing act between good transportability and a good sound quality of the loudspeaker apparatus. The bistable membrane can be changed from a stable operating state into a stable transport state. By way of a slight pressure at both ends of the bistable membrane, the latter can be rolled up and consequently changed into the transport state. By way of example, in the transport state, the bistable membrane can engage around a cylindrical housing that partly or wholly encloses the loudspeaker apparatus.

A diaphragm assembly for a miniature acoustical transducer having a sufficiently light paddle to allow good audio performance and a sufficiently stiff frame to allow handling. The paddle may be made of a thin sheet of aluminium and the frame of thicker aluminium or a bent sheet of aluminium.

The present disclosure provides a reinforcing part for a speaker diaphragm, a diaphragm and a speaker. The reinforcing part is an overlapped three-layer structure and comprises a support layer as well as a first heat dissipation layer and a second heat dissipation layer that are fixed and bonded on surfaces of two sides of the support layer respectively, the support layer comprises through holes penetrating surfaces of two sides thereof, and the reinforcing part further comprises fillers located within the through holes and configured for heat conduction, the fillers having thermal conductivity higher than that of the support layers.