75results about "Metallic diaphragms" patented technology

The invention provides a sound production device and electronic equipment. The sound production device comprises a first transducer and a second transducer, the first transducer comprises a first base and a first vibration assembly, the outer periphery of the first vibration assembly is fixed to the first base, the second transducer comprises a second base and a second vibration assembly, and the second vibration assembly is fixed to the second base. The second vibration assembly and the first vibration assembly are oppositely arranged at an interval. A vibration space is defined by the middle of the first vibration assembly and the second transducer, an acoustic channel is defined by the second vibration assembly and the outer periphery of the first vibration assembly, and the vibration space is communicated with an external space through the acoustic channel. The sounding device is simple in structure and small in size.

There is a composite material for an acoustic transducer diaphragm comprising: a thermoplastic polymer resin, a graphitic filler, and optionally a coupling agent. The thermoplastic polymer resin is selected from the group consisting of polypropylene, polyethylene, poly(methyl methacrylate), polycarbonate, polyoxymethylene, cyclic olefin copolymer, polyethylene terephthalate, acrylonitrile butadiene styrene, polybutylene terephthalate, polyamide, poly(ADP-ribose) polymerase, polyethylenimine, polyamide-imide, polyether ether ketone, polyolefin, polyester, polycarbonate, polysulfone, polyacetals, polyvinyl acetals, polyketone, polyamides, cyclic olefin copolymer, thermoplastic thermotropic liquid-crystal polymer, polyphenylene sulfide, polyimide and a mixture thereof. The graphitic filler is selected from the group consisting of graphene oxide, reduced graphene oxide, graphite, graphene and carbon nanotubes, and a mixture thereof. The coupling agent or a mixture is selected from the group consisting of titanium organometallics, aluminum organometallics, zirconium organometallics, and silicon organometallics.

Provided in the present application are an reinforced dome and a loudspeaker. Preparation raw materials for the reinforced dome comprise a main material and an reinforced material added to the main material, the particle size of the reinforced material being 1 nm-5 μm, and the mass percentage of the reinforced material added to the preparation raw materials being 1-50%. The reinforced dome of the present application comprises the main material and the reinforced material added to the main material. The reinforced material is added to the main material so as to enhance the mechanical properties of the dome, such that compared with those of domes in the prior art made of pure polymer materials or metal materials, the elastic modulus of the reinforced dome obtained in the present application is increased while the quality requirements of the dome is ensured, thus improving the high-frequency performance of loudspeaker products.

Example embodiments provide a voice coil speaker that may comprise a speaker frame and a diaphragm connected to the speaker frame and configured to be capable of axial movement. A heat conducting coil former may be connected to the diaphragm. A pole piece and a back plate may form an annular gap and conduct magnetic flux from an axially polarized permanent magnet in a complete loop that includes the annular gap. A voice coil may be wound on the heat conducting coil former and residing in the annular gap, the magnetic flux passing through the voice coil in the radial direction, such that the voice coil produces an axial force to cause the diaphragm to produce sound. A thermal bridge may be configured to conduct heat from the heat conducting coil former to the back plate.

The present invention relates to an electronic device. A display device includes: a display module including a display panel configured to display an image; a rear cover located on a rear surface of the display module; and a sound generation module located at the rear cover and configured to vibrate the display module to generate sound, and a rear surface of the sound generation module is covered by the rear cover.

The invention provides a UTG diaphragm loudspeaker comprising a magnetic assembly used for generating magnetic lines of force; the vibrating diaphragm comprises UTG glass, and the thickness of the vibrating diaphragm ranges from 0.01 mm to 0.1 mm; and the voice coil is configured corresponding to the vibrating diaphragm and is matched with the magnetic assembly to generate driving force to push the vibrating diaphragm to vibrate, and the thickness of the vibrating diaphragm is as thin as 0.01 mm.

The present disclosure provides a conductive diaphragm and a speaker using same. The conductive diaphragm includes a main portion made of polymer material and a conductive portion located on the main portion. The conductive portion includes a substrate with a film layer and conductive material dispersed in the substrate, the film layer is solidified from at least one material of thermoplastic elastomer, phenyl silicone, isoprene rubber, or fluoroelastomer. Compared with the related technologies, the conductive diaphragm disclosed by the present disclosure has excellent atigue-resistant property and could maintain good adhesive strength and toughness.

The present invention relates to a small receiver for a listening device, the small receiver comprising a rectangular housing, an audio output port arranged in the rectangular housing, and a hinged diaphragm arranged in the rectangular housing and separating a front volume portion and a rear volume portion in the rectangular housing, the hinged diaphragm comprising a hinge portion and a movable portion, at least the movable portion of the hinged diaphragm being adapted to vibrate in response to a drive signal applied to a voice coil fixed to the movable portion of the diaphragm, a hinged diaphragm, and a magnetic motor arranged in the rectangular housing, the magnetic motor being adapted to generate a static magnetic field in a gap in which at least a part of the voice coil is arranged. The present invention also relates to an audio assembly for a listening device comprising a nozzle having an audio channel in which the small receiver is at least partially arranged internally. The present invention further relates to a listening device comprising the small receiver or the audio assembly.

The loudspeaker includes a voice coil assembly comprising a voice coil 1 and a voice coil former or bobbin 2 upon which the voice coil is wound. The voice coil assembly moves within an air gap 7 forme

The electrostatic transducer (200) comprises first and second flexible conductive membranes (204, 206) and first and second conductive stators (208, 210). The membranes (204, 206) and stators (208, 210) are assembled in a layered configuration with the membranes (204, 206) between the stators (208, 210) and a mass of trapped air (226) sealed between the first and second membranes (204, 206). The electrostatic transducer (200) is arranged to apply an electrical potential which, in use, creates an electrostatic force between the membranes (204, 206) and the stators (208, 210) causing movement of the membranes (204, 206) relative to the stators (208, 210).

A transducer is described. The transducer has a static structure having a magnetic gap surrounding an axis and a wall portion extending parallel to and facing the axis; a dynamic structure having a coil body surrounding the axis; a coil wound around the coil body, the coil body being housed in the magnetic gap; a diaphragm extending outwardly from the axis and secured to the coil body, the diaphragm having an outer peripheral edge proximate to the wall portion, the outer peripheral edge being not attached to the wall portion; and a suspension connecting the static structure to the dynamic structure, the suspension limiting a degree of freedom of movement of the dynamic structure relative to the static structure to axial movement along the axis, the suspension biasing the dynamic structure to a rest position, thereby defining a movement span xmax, the span of movement x maximum is axially defined parallel to the axis between an x positive position and an x negative position, and the wall portion covers the span of movement x maximum.

The present invention relates to an acoustic membrane (14a) for an acoustic transducer, the membrane comprising a substrate (21); and at least one reinforcement layer (23a-23b) of the substrate (21), the at least one reinforcement layer (23a-23b) enabling to improve the stiffness of the membrane (14a). The reinforcement layer (23a-23b) of the substrate (21) corresponds to an amorphous carbon layer belonging to the DLC family and has a stiffness greater than 300 GPa, a density lower than 3400 kg / m 3 and a thickness between 0.5 pm and 6 pm. The reinforcement layer (23a-23b) is attached to the substrate (21) with a bonding layer (22a-22b) having a thickness between 0.1 pm and 1 pm and comprising at least one metallic compound.

The present application provides a sound production apparatus and an electronic device. The sound production apparatus comprises a first transducer and a second transducer; the first transducer comprises a first base and a first vibration assembly; the outer circumference of the first vibration assembly is fixed to the first base; the second transducer comprises a second base and a second vibration assembly; the second vibration assembly is fixed to the second base; and the second vibration assembly and the first vibration assembly are opposite to and spaced apart from each other. The middle portion of the first vibration assembly and the second transducer define a vibration space; the outer circumference of the second vibration assembly and the outer circumference of the first vibration assembly define an acoustic channel; and the vibration space is communicated with an external space through the acoustic channel. The sound production apparatus has a simple structure and a small size.

An electroacoustic transducer 1, particularly a flexural wave transducer, comprising at least one bend-resistant acoustic diaphragm 2 and a solid-state acoustic converter 3 for exciting this acoustic diaphragm 2 is described. In order to achieve an improved acoustic situation, it is proposed that this acoustic diaphragm 2 comprises a support material 4 coated with a synthetic resin, and that its acoustic output surface 5 is composed of at least two, particularly at least three, synthetic resin layers 6 which are joined to one another in a material-bonded form without joining means.

A microphone array contains multiple microphone capsules whose outputs are electronically combined for directional recording of sound. The directivity and frequency characteristics of the microphone array depend on the number and position of the microphone capsules. In order to obtain the smallest possible microphone array with only a small number of microphone capsules, with nearly uniform directivity and frequency dependence over the audio frequency range, but which is scalable and robust to small mispositioning of the capsules. Microphone arrays with 15 or 21 microphone capsules (K 15,11 ~K 15,35 ,K 21,11 ~K 21,37 ) are arranged on a carrier (T, T') that are located on three similar branches, each branch being provided with the same number of microphone capsules, which are rotated by 120° with respect to each other. Each of the microphone capsules is located at a triangular corner of the L2 grid in a planar isometric coordinate system (forming an equilateral L2 grid) with three axes (L0, L1, L2) that are rotated by 120° with respect to each other.

The first vibrating plate (110) resonates and vibrates in a direction orthogonal to the first vibrating plate (110) at a phase opposite to the phase of the at least one single-chip piezoelectric vibrator (130). The dimension (L1) of the inner side of the at least one frame body (120) in the longitudinal direction is at least four times the dimension of the inner side of the at least one frame body (120) in the short direction orthogonal to the longitudinal direction. The second diaphragm (135) is positioned in a region sandwiched between both end edges (120s1, 120s2) in the short-side direction of the inner peripheral surface of the at least one housing (120) when viewed from a direction orthogonal to the first diaphragm (110), and the second diaphragm (135) is positioned in the short-side direction in a region sandwiched between both end edges (120s1, 120s2) in the short-side direction of the inner peripheral surface of the at least one housing (120). The average distance (D1) in the short-side direction between one end edge (120s1) in the short-side direction of the inner peripheral surface of the at least one frame (120) and one end edge (135s1) in the short-side direction of the second diaphragm (135), and the average distance (D2) in the short-side direction between the other end edge (120s2) in the short-side direction of the inner peripheral surface of the at least one frame (120) and the other end edge (135s2) in the short-side direction of the second diaphragm (135) are respectively equal to (D1, D2) in the short-side direction. The dimension (L2) of the inner side of at least one frame body (120) in the short side direction is 1 / 6 or less.

Embodiments of the present disclosure provide a display apparatus and an electromagnetic actuator, the display apparatus includes a display structure, a sound-emitting substrate, at least one electromagnetic actuator and a stabilizer; where one side of the sound-emitting substrate is attached to the display structure, and the electromagnetic actuator is fixedly attached to the other side of the sound-emitting substrate through the stabilizer; the electromagnetic actuator includes a bracket and a plurality of flexible support feet extending away from the bracket. The electromagnetic actuator is fixedly arranged on the sound-emitting substrate through the stabilizer, and the bracket receives the electromagnetic actuator, the plurality of flexible support feet can keep the electromagnetic actuator stable during the vibration process of the electromagnetic actuator, which helps avoid position shift of the electromagnetic actuator under long-time working.

A loudspeaker device (200) is provided. The loudspeaker device (200) comprises a micro-electromechanical unit (100). The micro-electromechanical unit (100) comprises a diaphragm (10) having a planar extension. The diaphragm (10) comprises a semiconductor structure (20) comprising a first (22) and a second (24) layer, each layer extending in the planar extension. The first layer (22) comprises Al(1-x)Ga(x)N, wherein 0.2≤x≤0.4, and the second layer (24) comprises GaN. The diaphragm (10) is arranged to oscillate in an extension transverse to the planar extension to thereby generate sound waves. A calibrating weight (17) is arranged on a surface of the diaphragm (10). The micro-electromechanical unit (214) further comprises a support structure (30) supporting the diaphragm (10), an electrode arranged (50) on a surface of the diaphragm (10), and a resonant box.

Disclosed is a vibration assembly (100), which includes an elastic element (110), which includes a central region (112), an edge region (114) disposed on the outer periphery of the central region (112), and a fixing region (116) disposed on the outer periphery of the edge region (114), and is configured to vibrate along a direction perpendicular to the central region (112), the central region (112) including an elastic member and a reinforcing member (120) laminated along the vibration direction, and the reinforcing member (120) has a plurality of groove structures (121) with openings facing the elastic member.

The electrostatic transducer (200) comprises first and second flexible conductive membranes (204, 206) and first and second conductive stators (208, 210). The membranes (204, 206) and stators (208, 210) are assembled in a layered configuration with the membranes (204, 206) between the stators (208, 210). The electrostatic transducer (200) is configured to apply an electrical potential that, in use, generates an electrostatic force between the membranes (204, 206) and the stators (208, 210) causing movement of the membranes (204, 206) relative to the stators (208, 210). The first and second flexible conductive membranes (204, 206) have first and second effective compliances, respectively, the first effective compliance being at least 10% greater than the second effective compliance.

The present invention relates to an electronic device. A display device includes: a display module including a display panel configured to display an image; a rear cover located on a rear surface of the display module; and a sound generating module located at the rear cover and configured to vibrate the display module to generate sound, with the rear surface of the sound generating module being covered by the rear cover.

Provided is a manufacturing method for a speaker diaphragm, a speaker diaphragm, and a speaker whereby, even when a hole is opened, insulation properties can be ensured, and rigidity can also be ensured. The method for manufacturing a speaker diaphragm according to the present invention is a method for manufacturing a speaker diaphragm including: a conductive layer (21) that includes a through-hole (31) for passing a tinsel wire; and resin layers (22) disposed so as to sandwich the conductive layer (21). The method comprises: a first step for providing the through-hole (31) in the conductive layer (21); and a second step for closing a mold (30) provided with a convex punch (P) having a diameter smaller than that of the through-hole (31), thereby causing the punch (P) to press the resin layers (22) against a laminate (M1) on an inner side of the through-hole (31). In the second step, due to the pressing of the punch (P), leaked material (40) of the resin layers (22) flows in an inside surface direction of the through-hole (31), and flows into a void portion near an outside surface of the punch (P).

A speaker and a method are disclosed, where the speaker comprises a rotary actuator comprising a wound laminate. The laminate comprises a first layer and a second layer each comprising or consisting of a dielectric elastomer, a first electrode disposed between the first layer and the second layer in direct contact therewith. The laminate also comprises a second metal layer disposed between and electrically conductively connected to a first sub-layer of the first electrode and a second sub-layer of the first electrode. The laminate also comprises a second electrode disposed on a side of the first layer distal from the first electrode and in direct contact with the first layer; a third electrode disposed on a side of the second layer distal from the first electrode and in direct contact with the second layer. The laminate also comprises a first metal layer electrically conductively connected to the third electrode.

The present invention provides a diaphragm for a speaker, and a speaker. The diaphragm comprises a main body portion and a conductive portion disposed at the main body portion. The conductive portion comprises a matrix and conductive materials dispersed in the matrix, and the mass percentage of the conductive materials in the conductive portion ranges from 35 wt% to 95 wt%. The conductive materials have at least one of the following shapes: spherical, flake-like, thin rod-like, and network-like. Conductive materials of a same shape have at least one size. A spherical conductive material has a particle size ranging from 0.01 μm to 20 μm; a flake-like conductive material has a thickness ranging from 0.05 μm to 5 μm and a length ranging from 0.01 μm to 20 μm; and a thin rod-like conductive material has a diameter ranging from 5 nm to 100 nm and a length ranging from 0.1 μm to 50 μm. The diaphragm for a speaker provided by the present invention has excellent electrical conductivity.

The present invention belongs to the technical field of speakers, and specifically relates to a planar transducer. The planar transducer of the present invention includes a frame, a magnetic circuit assembly, a diaphragm assembly, and a cover plate. An accommodation chamber is provided inside the frame. One end of the accommodation chamber has an opening. The magnetic circuit assembly is provided in the accommodation chamber. The magnetic circuit assembly includes a magnetic conductive plate and a magnet assembly attached to the magnetic conductive plate. The magnet assembly includes N first magnets and N - 1 second magnets, where N is 3 or more. The first magnets and the second magnets are sequentially and alternately attached and installed. The magnetic pole directions of the first magnets and the second magnets are perpendicular to each other. And in the magnet assembly, the magnetic pole directions of any two adjacent magnets of the same type, which are arranged at intervals from other types of magnets, are installed in opposite directions. The diaphragm assembly includes a base layer and a voice coil layer. The base layer is provided to cover the opening of the accommodation chamber. The voice coil layer is attached and connected to one side of the base layer. The other side of the base layer is installed facing the magnetic circuit assembly. The cover plate is provided to cover the opening of the accommodation chamber and is provided opposite to the voice coil layer.

This pressure wave generating element comprises a support body 10 and a fiber layer 20 that is provided upon the support body 10 and that generates heat from the application of electric current. The fiber layer 20 includes fibers having a metal coating at least partially provided to the surfaces thereof. The fiber layer 20 is formed from a fiber film having an average pore size in the range of 0.1-1.0 μm. As a result of this configuration, a pressure wave generating element having improved sound pressure and suitable electrical resistance is obtained.

Provided are an elastic material and a preparation method therefor and a loudspeaker and an electronic device. The elastic material comprises a carrying substrate, and a nanomaterial and a molecular sieve arranged inside pores of the carrying substrate; in the elastic material, the carrying substrate has a content of 97-99 wt %; a mass ratio of the nanomaterial to the molecular sieve is 1:0.9-1.1. The elastic material provided has a large specific surface area, which can effectively absorb noise, dissipate acoustic energy, and improve the efficacy of vibration and noise reduction; and by loading the nanomaterial and the molecular sieve, the shielding performance and signal output quality of the electronic device are improved, and the problem of reduced service life caused by unefficient heat dissipation of the electronic device is solved.

Provided in the present invention is a conductive diaphragm, which comprises a main body part and a conductive part arranged in the main body part, wherein the conductive part comprises a matrix and a conductive material, which is dispersed in the matrix. The matrix comprises a film layer, wherein the film layer is formed by curing at least one of a thermoplastic elastomer, phenyl silicone rubber, isoprene rubber and fluororubber. The conductive diaphragm provided in the present invention has good mechanical properties and fatigue resistance, and can still maintain relatively good bonding strength and toughness in the case where the filling amount of the conductive material is high.