159results about "Ceramic diaphragms" patented technology

An exciter-equipped glass diaphragm, includes: a glass plate structure; and a first exciter and a second exciter, which are attached to the glass plate structure, in which, when a lowest resonant frequency of the first exciter is F1(0) (Hz), and a lowest resonant frequency of the second exciter is F2(0) (Hz), the exciter-equipped glass diaphragm satisfies: 3≤|F1(0)−F2(0)|≤100 (Hz).

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.

The present invention discloses a diaphragm for a speaker including a lower surface area, a central area formed on said lower surface area, an upper surface area formed on said central area. The upper surface area, the central area and the lower surface area includes homogeneous amorphous materials. The diaphragm includes internal stress changing with a depth from the surface to the center of the diaphragm.

The present disclosure provides an open earphone comprising: a sound production component including a transducer and a housing accommodating the transducer and an ear hook. In a wearing state, a portion of the ear hook is hung between an auricle and a user's head, and the other portion of the ear hook extends towards a side of the auricle away from the head and connects to the sound production component to place the sound production component in a position near an ear canal but not blocking the ear canal. The housing is provided with a sound outlet on an inner side surface towards the auricle for guiding a sound generated by the transducer out of the housing and to the ear canal, and a ratio of an area of the sound outlet to an area of the inner side surface is between 0.015 and 0.25.

The present disclosure provides an earphone including a sound production component, an ear hook, and a microphone assembly. The microphone assembly includes a first microphone and a second microphone. The sound production component or ear hook includes a first sound hole and a second sound hole corresponding to the first microphone and second microphone, respectively. An extension line of a line connecting a projection of the first sound hole on a sagittal plane of the user and a projection of the second sound hole on the sagittal plane has an intersection point with a projection of an antihelix, a ratio of a first distance between the projection of the first sound hole on the sagittal plane and the projection of the second acoustic hole on the sagittal plane to a second distance between the projection of the second acoustic hole on the sagittal plane and the intersection point is 1.8-4.4.

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.

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 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 disclosure provides an open earphone, including: a sound production component including: a transducer including a diaphragm configured to generate a sound; and a housing forming a cavity used to accommodate the transducer, wherein in a wearing state, the housing is provided with a sound guiding hole on an inner side surface toward an auricle of a user for guiding a sound generated by a front side of the diaphragm out of the housing and into an ear canal, and at least two pressure relief holes are provided on one or more other side surfaces of the housing, the at least two pressure relief holes including a first pressure relief hole away from the ear canal and a second pressure relief hole near the ear canal, and a sound pressure at the first pressure relief hole being greater than a sound pressure at the second pressure relief hole.

An apparatus, comprising a film (103) comprising a network of conductive and / or semi-conductive high aspect ratio molecular structures is presented. The apparatus also comprises a frame (102) arranged to support the film (103) at least at least two support positions so that a free-standing region (101) of the film (103) extends between the at least two support positions. The two or more electrical contact areas electrically coupled to the film (103), and these electrical contact areas are arranged to pass electric charge across the free- standing region (101) of the film (103) at a current between 0.01 and 10 amperes.

A method and apparatus for maintaining a free-standing region of a film including a network of High Aspect Ratio Molecular structures (HARM-structures). The method includes electrically coupling the film to two or more electrodes at two or more peripheral locations of the film and passing electric charge across the free-standing region of the film to create a magnetic attraction between the HARM-structures in the network.

The invention relates to a vibrating diaphragm suitable for a loudspeaker. The vibrating diaphragm sequentially comprises an upper surface area, a lower surface area and an upper surface area from top to bottom, a central region; and a lower surface region; wherein the upper surface area, the central area and the lower surface area are all made of homogeneous amorphous materials, and the homogeneous amorphous materials comprise silicon dioxide; and the vibrating diaphragm is made of a hard homogeneous amorphous material with internal stress change, and the stress change is changed along with the depth from the surface to the center of the vibrating diaphragm.

The invention discloses an electric micro-electro-mechanical system (MEMS) loudspeaker, which is provided with a pair of stators and a diaphragm arranged between the stators, and is used for generating an acoustic output according to an input electro-acoustic signal. The moving part is related to the performance of the electric MEMS loudspeaker due to the symmetrical structure of the thin conductor connecting part and the rigid polyimide membrane suspended on the diagonal spring structure, and the structure is uniformly distributed on the elastic membrane. In addition, by means of the structure, the frequency bandwidth is improved, and the broadband is large. The multi-circle planar micro-coil structure is manufactured at the top and / or the bottom of the diaphragm, and a single layer or double layers can be used, so that the efficiency of the MEMS loudspeaker is improved.

Provided herein are high-fidelity, free-standing, wireless, glass speaker systems with a curved glass that is wide at the base and narrow on top, the width being gradually reduced all the way to the top, and having three slots at the top to reduce the mass of the glass. The shape of the glass is configured to create a dynamic range of sound, to allow low frequencies to resonate more prominently at the bottom, and high frequencies to be more prominent at the top of the glass, and the mid frequencies to resonate more prominently in the middle section of the glass.

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 glass diaphragm module includes: a glass diaphragm including a glass plate structure and an exciter that is attached to the glass plate structure; a first member that is attached to a peripheral end portion of the glass diaphragm via a resin layer; and a second member that is arranged away from the glass diaphragm and that is connected to the first member, and a Young's modulus E1 of the first member and a Young's modulus E2 of the second member satisfy E2 / E1≥10.

Embodiments of the present disclosure provide a speaker. The speaker may include a diaphragm; a magnetic circuit component; and a coil connected to the diaphragm, at least part of the coil being arranged in a magnetic gap formed by the magnetic circuit component, and the coil driving the diaphragm to vibrate to generate sound after the coil being energized. The diaphragm may include a main-body region and a folded-ring region surrounding the main-body region, the main-body region may include a first inclined section and a first connecting section connected to the coil, the first inclined section may be attached to a portion of the folded-ring region, and the first inclined section may be tilted in a direction away from the coil with respect to the first connecting section.

Disclosed is an open earphone, comprising a sound production component and an ear hook. The ear hook may include a first portion and a second portion connected in sequence. The first portion may be hung between the auricle of a user and the head of the user, the second portion may extend toward a front outer side of the auricle and connect the sound production component, and the sound production component may be located close to the ear canal but not block the opening of the ear canal; wherein the sound production component and the auricle may have a first projection and a second projection on a sagittal plane, respectively, a centroid of the first projection may have a first distance from a highest point of the second projection in a vertical axis direction, a ratio of the first distance to a height of the second projection in the vertical axis direction may be within a range of 0.25-0.6, the centroid of the first projection may have a second distance from an end point of the second projection in a sagittal axis direction, and a ratio of the second distance to a width of the second projection in the sagittal axis direction may be within a range of 0.4-0.7.

The present invention relates to a glass plate assembly, which includes two or more plates. An intermediate layer is included between at least a pair of the plates. The intermediate layer satisfies all of the following properties (1) to (3). At least one of the pair of plates is a glass plate, having a loss factor of 0.01 or more at 25°C, and a longitudinal wave sound velocity value in the plate thickness direction of 4.0×10<supgt;3< / supgt> m / s or more. (1) The thickness is 20 μm or less. (2) The compression storage elastic modulus at a temperature of 25°C is 1.0×10<supgt;4< / supgt> Pa or less. (3) At a temperature of 25°C and 1 Hz, the compression storage elastic modulus is higher than the compression loss elastic modulus.

The present disclosure provides an open earphone comprising: a sound production component including a transducer and a housing accommodating the transducer and an ear hook. In a wearing state, a portion of the ear hook is hung between an auricle and a user's head, and the other portion of the ear hook extends towards a side of the auricle away from the head and connects to the sound production component to place the sound production component in a position near an ear canal but not blocking the ear canal. The housing is provided with a sound outlet on an inner side surface towards the auricle for guiding a sound generated by the transducer out of the housing and to the ear canal, and a ratio of an area of the sound outlet to an area of the inner side surface is between 0.015 and 0.25.

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.

Embodiments of the present invention relate to the technical field of microphones. Disclosed are a diaphragm and an MEMS microphone. The diaphragm comprises a vibration portion and a connecting portion arranged around the vibration portion. The vibration portion comprises a first flat portion located at a central position, a corrugated portion arranged around the first flat portion, and a second flat portion arranged around the corrugated portion. The corrugated portion extends in a direction from the center to the edge of the first flat portion. The bending stiffness of the corrugated portion is greater than the bending stiffness of the first flat portion and the second flat portion, and the corrugated portion is made of a material at least comprising silicon nitride. The diaphragm and the MEMS microphone provided in the embodiments of the present invention can increase the structural strength of the diaphragm.

The present disclosure relates to an earphone including a sound production component and an ear hook. In a wearing state, the ear hook is configured to place the sound production component at a position near an ear canal but not blocking the ear canal. An inner contour of a projection of the ear hook on the user's sagittal plane includes a first curve that has an extremum point in a first direction. The first direction is perpendicular to a long-axis direction of a projection of the sound production component. The extremum point is located behind a projection point of an upper vertex of the ear hook on the user's sagittal plane, and the upper vertex of the ear hook is the highest point of an inner contour of the ear hook along a vertical axis of the user.

To provide an apparatus capable of improving sound quality.SOLUTION: An apparatus includes a vibration member, a supporting member at a rear surface of the vibration member, and a sound generating apparatus at a rear surface of the supporting member. The sound generating apparatus is configured to output a first sound in a first direction and to output a second sound in a second direction different from the first direction.SELECTED DRAWING: Figure 1

An open-type earphone according to an embodiment of the present specification includes an ear hook including a sound generating unit and a first part and a second part connected in sequence, wherein the first part is hung between the user's auricle and head, and the second part extends toward the anterior outer surface of the auricle and is connected to the sound generating unit, thereby attaching the sound generating unit near the ear canal in a position that does not block the ear canal opening, and at least a portion of the sound generating unit is inserted into the cavity of the concha, and the overlap ratio between the area of ​​the sound generating unit projected onto the sagittal plane and the area of ​​the concha cavity projected onto the sagittal plane is 44.01% or more.

The earphone includes a sound generation component including a transducer; at least a portion of the sound generation component extending into a concha cavity of a user; and an ear hook including a first portion and a second portion, the second portion being connected to the first portion, and being connected to the sound generation component to place the sound generation component at a position near an ear canal without blocking an opening of the ear canal. The sound generation component has a first projection on a sagittal plane, and the auricle has a second projection on the sagittal plane. A centroid of the first projection may have a first distance from a highest point of the second projection in a vertical axis direction. A ratio of the first distance to a height of the second projection in the vertical axis direction may be in a range of 0.35-0.6.

The present invention obtains a glass diaphragm module capable of suppressing the generation of noise. A glass diaphragm module (10) is provided with: a glass diaphragm (11) provided with a glass plate structure (12) and a vibrator (14) attached to the glass plate structure (12); a first member (18) attached to a peripheral end portion of the glass diaphragm (11) via a resin layer (20); and a second member (22) disposed so as to be separated from the glass diaphragm (11) and connected to the first member (18), the Young's modulus E1 of the first member (18) and the Young's modulus E2 of the second member (22) satisfying E2 / E1 > = 10.

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.