151results 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.

A speaker includes a housing including a front housing provided in a conductive material; a driver including a diaphragm; a magnetic circuit including a permanent magnet; and an electric circuit including a voice coil to which current is applied based on an input electrical signal, and a first electric circuit configured to vibrate the driver based on the voice coil and a magnetic field formed by the magnetic circuit; wherein the diaphragm include a coating that is surface-coated with a conductive material so as to have a capacitance with the front housing.

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

A sound output device may include: a vibration member including a vibration plate including a pattern portion; and a vibrating device configured to vibrate the vibrating member based on the piezoelectric effect. The pattern portion includes one or more of a plurality of holes and a plurality of grooves and is configured to increase an average sound pressure level of the sound output device.

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.

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 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.

The first diaphragm (110) resonates in a reverse phase to at least one unimorph piezoelectric vibrator (130) in a direction orthogonal to the first diaphragm (110). The longitudinal dimension (L1) inside at least one frame body (120) is 4 times or more the dimension in the short direction orthogonal to the longitudinal direction inside at least one frame body (120). The second diaphragm (135) is located within a region sandwiched by both end edges (120s1, 120s2) in the short direction on the inner peripheral surface of at least one frame body (120) in the short direction when viewed from a direction orthogonal to the first diaphragm (110), and the average distance (D1) in the short direction between one end edge (120s1) in the short direction on the inner peripheral surface of at least one frame body (120) and one end edge (135s1) in the short direction of the second diaphragm (135), and the average distance (D2) in the short direction between the other end edge (120s2) in the short direction on the inner peripheral surface of at least one frame body (120) and the other end edge (135s2) in the short direction of the second diaphragm (135) are each 1 / 6 or less of the dimension (L2) in the short direction inside at least one frame body (120).

A waterproof microspeaker includes: a frame; a magnetic circuit provided below the frame and including a yoke, inner and outer magnets, and a top plate; a voice coil located between the magnets and configured to vibrate by a magnetic field of the magnetic circuit and mutual electromagnetic force when an electric signal is applied; and a diaphragm housing provided above the frame. The diaphragm housing includes: a sidewall portion provided above the frame and having a predetermined height; an edge dome portion protruding upwardly or downwardly along an inner circumference of the sidewall portion; and a diaphragm provided inside the edge dome, allowing an upper end of the voice coil to be fixed thereto, and configured to generate sound by vibration of the voice coil. The diaphragm includes a polymeric material including metal or plastic and is inserted into an inner circumferential portion of the edge dome portion.

The present invention is provided with a vibration plate (110), at least one case (120), at least one ultrasonic vibrator (130), and at least one resonator (140). The at least one case (120) extends in the longitudinal direction and is joined to the diaphragm (110). The at least one ultrasonic transducer (130) is attached to each of the at least one housing (120) and faces the vibrating plate (110) with a gap therebetween. The at least one resonating plate (140) faces the vibrating plate (110) on the opposite side of the vibrating plate (110) from the at least one housing (120) with a gap therebetween, and extends in the long axis direction. The vibrating plate (110) resonates and vibrates in a direction orthogonal to the vibrating plate (110) at a phase opposite to that of the at least one ultrasonic vibrator (130). The dimension of the inner side of the at least one housing (120) in the long-axis direction is larger than the dimension of the inner side of the at least one housing (120) in the short-axis direction orthogonal to the long-axis direction. If the wavelength converted from the drive frequency of the at least one ultrasonic transducer (130) is lambda, lambda / 2 air resonance can be generated in the gap in the minor axis direction.

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 discloses a dome, a diaphragm assembly, a sound-generating device, and an electronic device for a sound-generating device; wherein the dome includes a heat-conducting layer and a heat-dissipating layer formed outside the heat-conducting layer; the heat-conducting layer includes at least an organic aerogel material and a heat-conducting filler, the organic aerogel material is oriented in a direction perpendicular to the surface of the dome, and the heat-conducting filler is added to the organic aerogel material and arranged along the orientation direction of the organic aerogel material. The dome of the present invention uses an organic aerogel material to reduce its own mass. Moreover, the present invention adds a heat-conducting filler to the organic aerogel material so that the heat-conducting filler is arranged along the orientation direction of the organic aerogel material, so that the heat can be transferred to the heat-dissipating layer outside the heat-conducting layer, thereby improving the heat dissipation efficiency of the dome.

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.

The invention relates to the technical field of loudspeakers, in particular to an electrodynamic loudspeaker with a micro-electro-mechanical system (MEMS), the MEMS loudspeaker being assembled and structured by at least one liquid metal membrane, the apparatus comprising: a noise reduction module configured to reduce noise without a plurality of software interfaces; the static part comprises at least one silicon frame, and the silicon frame serves as a platform of a universal magnet; and the moving part comprises at least one liquid metal diaphragm, the liquid metal diaphragm is fixed at the top of the silicon frame, the liquid metal diaphragm is used as a constituent part of at least one microphone or loudspeaker, and the liquid metal diaphragm is made of gallium or indium alloy materials. According to the equipment, the original design is deeply changed in the aspects of material science, an electric power system and sound effect optimization, and quantum calculation, a liquid metal diaphragm, wireless electric power transmission and a nanometer manufacturing technology are fused. The sound quality, the energy efficiency and the customization capability are remarkably improved through the innovativeness.

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

The embodiment of the invention discloses a vibration assembly and a loudspeaker. The vibration assembly comprises a yoke structure, a diaphragm, a main magnet and a voice coil. The yoke structure comprises a plurality of nested first magnetic conductive layers and is provided with a plurality of first through holes, the diaphragm is arranged at the top end of the yoke structure, the main magnet is arranged at the bottom of a cavity formed by the diaphragm and the yoke structure and forms an annular magnetic gap with the yoke structure, and the voice coil is arranged in the magnetic gap and is connected with the diaphragm. The yoke structure is formed by nesting the plurality of first magnetic conductive layers, the plurality of first through holes are formed, the multi-layer yoke structure is used for replacing the supporting and magnetic conductive effects of the original yoke, and the multi-hole arrangement is used for replacing the design that the original single vent hole is matched with the metal screen cloth, so that the heat dissipation effect is improved, the complex structure is omitted, and the working efficiency of the product is improved.