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WO/2022/062814A1 |
The present invention provides a vibrating diaphragm used in a sound production device. The sound production device comprises a voice coil. The vibrating diaphragm is used for being combined and fixed with the voice coil, and comprises a...
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WO/2022/055206A1 |
The present invention relates to a MEMS microphone backplate having an acoustic hole structure for improving acoustic characteristics. A MEMS microphone backplate having an acoustic hole structure for improving acoustic characteristics a...
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WO/2022/047858A1 |
Disclosed are a loudspeaker, a voice coil, a voice coil manufacturing method, and a coil heating device. The coil heating device comprises a heating member and a support seat; the heating member comprises a heating column for coils to pl...
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WO/2022/042410A1 |
The present invention discloses a composite diaphragm and a preparation method therefor. The composite diaphragm is prepared from the following raw materials in parts by weight: 5-15 parts of microcrystalline cellulose, 100-120 parts of ...
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WO/2022/041459A1 |
Provided is a loudspeaker box, which comprises a housing, which is provided with a receiving space, and a sound-producing unit, which is received and fixed in the receiving space; the housing comprises an upper cover made of a metal mate...
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WO/2022/035126A1 |
Disclosed is a method for controlling an electronic apparatus connected to a source device and a sound output device. A method for controlling an electronic apparatus, according to the present disclosure, comprises the steps of: receivin...
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WO/2022/021414A1 |
Provided in the present application are a loudspeaker and an electronic device. The loudspeaker comprises a loudspeaker housing, a magnetic circuit system, a diaphragm structure, and a driving rod. The magnetic circuit system, the diaphr...
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WO/2022/007046A1 |
The present invention provides an MEMS loudspeaker and a manufacturing process therefor. The MEMS loudspeaker comprises a base, a piston plate, a driving assembly and a flexible guide member, wherein a cavity is formed in the base; the p...
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WO/2022/007001A1 |
The present application provides a diaphragm forming process, comprising the following steps: forming a thin film for the first time, and forming a first annular recess of an imitated folding ring structure on the thin film to obtain a s...
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WO/2022/006975A1 |
Provided in the present application are a diaphragm and a loudspeaker. The diaphragm comprises a folding ring part and at least one reinforcing ring that connects the inner periphery and/or the outer periphery of the folding ring part, t...
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WO/2022/007191A1 |
Provided in the present invention is a method for fabricating a loudspeaker. The method comprises the following steps: step S1, etching a piston connecting rod and a first cavity; step S2, depositing a support layer; step S3, surface pla...
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WO/2022/000104A1 |
A horn foam mounting device for an automobile, comprising a dust removal mechanism (10), a horn feeding mechanism (30), a foam feeding mechanism (20), a transplanting mechanism (40), a discharging mechanism (50), a conveying line (60) an...
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WO/2022/001015A1 |
A composite diaphragm (11), a preparation method for the composite diaphragm (11), and a sound producing device. The composite diaphragm (11) comprises an adhesive film layer (12) and a supporting layer (13); the adhesive film layer (12)...
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WO/2021/248511A1 |
The present invention relates to the technical field of acoustic element manufacturing. Disclosed is an injection mold for manufacturing a sound-producing device basket structure. The injection mold for manufacturing the sound-producing ...
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WO/2021/224155A1 |
The present invention relates to a loudspeaker comprising - a non-perforated membrane (10) having a front surface facing in a forward direction for producing sound to be radiated outwardly from the loudspeaker in the forward direction an...
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WO/2021/226268A1 |
A microelectromechanical (MEMS) microphone with membrane trench reinforcements and method of fabrication is provided. The MEMS microphone includes a flexible plate and a rigid plate mechanically coupled to the flexible plate. The MEMS mi...
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WO/2021/219994A1 |
An optical microphone module (2) for installation in a microphone assembly is described. The module (2) is manufactured by assembling a semiconductor chip (4), a spacer (6) and an interferometric component (8) in a stack with the spacer ...
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WO/2021/208328A1 |
The present invention relates to the technical field of speaker cones. Disclosed are a three-dimensional multi-directional reinforced cone composed of multiple planar layers, and a manufacturing method therefor. The cone has high strengt...
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WO/2021/201180A1 |
In a vibration plate 1 for an electro-acoustic converter configured by a paper substrate 10 having, as a main component, cellulose fibers 20, the total mass of dyed particles 21 included in a first surface-side region 12, which is a regi...
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WO/2021/200925A1 |
The present disclosure provides an ultrasonic transceiver capable of measuring a high-temperature and high-humidity fluid stably for a long period, and an ultrasonic flowmeter, an ultrasonic flow velocimeter, and an ultrasonic densitomet...
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WO/2021/191086A1 |
An apparatus (34) for sound detection, sound localization and beam forming comprises a display (1) and a plurality of microphone stacks (3), wherein the display (1) surrounds each microphone stack (3) in lateral directions (x, y). The ap...
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WO/2021/186276A1 |
The invention provides a diaphragm for a microspeaker and a manufacturing method thereof. The diaphragm is a single-layer diaphragm or a multi-layer diaphragm and comprises at least one layer of a chemically cross-linked thermoplastic po...
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WO/2021/186277A1 |
The invention provides a diaphragm for a microspeaker and a manufacturing method thereof. The diaphragm is a single-layer diaphragm or a multi-layer diaphragm and comprises at least one layer of a chemically cross-linked thermoplastic po...
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WO/2021/188962A1 |
Articles and methods are provided for miniature acoustic transducers having highly compliant suspension systems despite their small size. In various examples the suspension system is molded of a liquid silicone rubber (LSR) and is molded...
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WO/2021/178069A1 |
An in-ear device comprises a transducer section, a front volume section, and a rear volume section. The transducer section includes a frame and piezoelectric actuators coupled to the frame. The piezoelectric actuators are configured to g...
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WO/2021/171231A1 |
Diaphragm (1) for a ribbon magnetostat (2) of a loudspeaker (3) for producing acoustic sound waves for reproducing speech and music, having the features of: the diaphragm (1) consists of a laminate having at least three layers, wherein a...
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WO/2021/152776A1 |
An ultrasonic transducer according to the present invention is provided with: a rigid substrate having a plurality of openings penetrating therethrough between a lower surface and an upper surface thereof; a flexible resin film fixedly a...
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WO/2021/134278A1 |
Provided in the present application is a loudspeaker box, comprising: an upper cover; a lower cover that is matchingly installed with the upper cover to jointly enclose to form an accommodating space; an annular supporting step portion t...
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WO/2021/134227A1 |
Provided is a diaphragm forming die, characterized by comprising a base body and a surround forming portion arranged on the base body. The surround forming portion comprises first edge portions and second edge portions, wherein two ends ...
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WO/2021/135129A1 |
Disclosed are a dust-proof structure, a microphone structure, and an electronic device. The dust-proof structure comprises: a carrier, a through hole being formed in the middle of the carrier, and the carrier being subjected to hydrophob...
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WO/2021/135125A1 |
Disclosed are a dustproof structure for a MEMS device and a MEMS microphone packaging structure. The dustproof structure for a MEMS device comprises a grid film and a carrier, wherein the grid film is provided with a fixed connection are...
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WO/2021/134665A1 |
Disclosed are a MEMS speaker and a manufacturing method therefor. The MEMS speaker comprises a substrate, a vibrating component, a diaphragm, and a connecting rod. The substrate comprises a base and a support base that extends from a sid...
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WO/2021/135113A1 |
Disclosed are a dustproof structure, a microphone packaging structure, and an electronic device. The dustproof structure comprises a carrier and a grid part; the carrier is of a hollow structure; the grid part is arranged at one end of t...
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WO/2021/134230A1 |
The present application provides a diaphragm forming mold, comprising a cavity for forming a diaphragm; the diaphragm forming mold comprises an upper mold and a lower mold, the upper mold and the lower mold are connected and enclosed to ...
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WO/2021/135642A1 |
Disclosed are a sound production device module and an assembly method. The sound production device module comprises: a module housing comprising an inner cavity; an elastic sound-penetrating mesh fabric disposed in the inner cavity and d...
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WO/2021/135108A1 |
Disclosed in the present invention are a dustproof structure, a microphone packaging structure and an electronic device. The dustproof structure comprises a support and a mesh portion; the support has a hollow structure, the support comp...
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WO/2021/134251A1 |
The present application provides a diaphragm forming mold, characterized by comprising a base body and a folding-ring forming portion provided on the base body; the folding-ring forming portion comprises edge portions and corner portions...
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WO/2021/134333A1 |
The present invention provides an MEMS microphone. The MEMS microphone comprises a substrate having a back cavity and a capacitor system provided on the substrate; the capacitor system comprises a diaphragm and a back plate which is spac...
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WO/2021/134247A1 |
The present application provides a diaphragm forming mold, comprising a cavity used to form a diaphragm. The diaphragm forming mold comprises an upper mold and a lower mold, and the upper mold and the lower mold connectingly enclose to f...
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WO/2021/135110A1 |
Disclosed are a dustproof structure and a MEMS microphone packaging structure used for a micro-electro-mechanical system (MEMS) device; the dustproof structure used for a MEMS device comprises a mesh membrane and a carrier having a cylin...
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WO/2021/128024A1 |
Disclosed are a manufacturing method for a paper cone for improving the acoustic performance of a speaker and the paper cone. The manufacturing method for the paper cone for improving the acoustic performance of a speaker comprises: pulp...
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WO/2021/130212A1 |
A non-planar chemical vapour deposition polycrystalline diamond body has a dome body having an apex and an outer periphery. The dome body has an average radius of curvature in a range of 4 mm to 25 mm and a maximum linear dimension at th...
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WO/2021/131528A1 |
This piezoelectric element is provided with a support body and a vibration unit (20). The vibration unit (20) is arranged on the support body; is configured to include a piezoelectric film and an electrode film that is connected to the p...
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WO/2021/128192A1 |
The present application relates to the technical field of electroacoustic devices, and in particular to a carbon fiber dome, a preparation method therefor and a loudspeaker. The carbon fiber dome comprises one or more layers of carbon fi...
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WO/2021/131311A1 |
A piezoelectric element comprising a support body and a vibration part (20) disposed on the support body, the vibration part (20) comprising a piezoelectric film and an electrode film connected to the piezoelectric film to extract electr...
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WO/2021/128046A1 |
Disclosed is a sound production device, comprising a basket, a vibration system and a magnetic circuit system. The magnetic circuit system is provided with a magnetic gap. The vibration system comprises a vibrating diaphragm, a voice coi...
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WO/2021/128191A1 |
The present application relates to the field of electroacoustic devices, and particularly relates to a carbon fiber dome manufacturing method. The manufacturing method comprises: when cutting a carbon fiber dome into a predetermined shap...
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WO/2021/114124A1 |
Provided is a method for fabricating a magnetic circuit system. The method comprises the following steps: providing one component among a first magnetic conductive plate or magnetic steel; and by means of a powder metallurgical process, ...
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WO/2021/114498A1 |
The present invention provides a method for manufacturing a magnetic circuit system, comprising the following steps: manufacturing one of a first concentrating flux plate and magnetic steel by using a powder metallurgy process; and manuf...
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WO/2021/106628A1 |
An acoustic vibration plate 10 is provided with a metal foil 11 and a thermoplastic resin film 12 laminated on the metal foil 11. The ratio of a linear coefficient of expansion CTEZ in the thickness direction to a linear coefficient of e...
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