16results about "Diaphragm construction" patented technology

A speaker system with a slantingly disposed and circularly curved reflection chamber includes an enclosure, a speaker driver mountable at the front side of the enclosure, and a housing mountable at the rear side of the enclosure. The front side of the speaker driver forms a reference plane on a coordinate plane defined by a transverse axis and a longitudinal axis. The reflection chamber is formed at the front side of the housing, has a three-dimensional circularly curved configuration, has a portion located in the paths along which the speaker driver's acoustic waves propagate in the enclosure, so as to reflect such acoustic waves, and can be tilted with respect to the transverse axis and / or the longitudinal axis to form a transverse-direction angle and / or a longitudinal-direction angle between the reflection chamber and the reference plane. Accordingly, the asymmetric internal structure suppresses standing waves formation, improving the speaker system's acoustic performances.

An integrated passive radiator loudspeaker module and an ultrathin sound equipment, comprising an inner basket, an outer extension basket and a ring-shaped passive radiator; the inner basket is used for mounting a loudspeaker unit; the outer extension basket is concentrically arranged at the periphery of the inner basket and is rigidly connected with the inner basket through a plurality of connecting columns; the ring-shaped passive radiator is arranged between the inner basket and the outer extension basket, an inner R ring of the ring-shaped passive radiator is integrally vulcanized with an R ring on the outer side of the sound cone of the loudspeaker and is fixed to the inner basket, and an outer R ring of the ring-shaped passive radiator is fixed to the outer extension basket; the loudspeaker and the passive radiator are integrated into a module, the mounting process is simplified, the production efficiency and product consistency are improved, and the cabinet is extremely thinned through the outer extension basket structure.

The application discloses a sound generating device and electronic equipment, and relates to the technical field of electroacoustic transduction. The sound generating device comprises a yoke, a vibration system, a terminal assembly and an inductor assembly. The yoke is provided with a mounting space. The vibration system vibrates along a first direction. The vibration system comprises a diaphragm and a voice coil connected to the diaphragm. The outer periphery of the diaphragm is connected to one end of the yoke. The terminal assembly is arranged on the yoke. One end of the terminal assembly is connected to the lead wire of the voice coil. The other end of the terminal assembly is used for being connected to an external circuit. The inductor assembly is arranged in the mounting space. The inductor assembly is connected in series with the voice coil through the terminal assembly. The axial direction of the inductor assembly is parallel to the first direction. The sound generating device can save product arrangement space and improve the utilization rate of the occupied space.

An electric sound stethoscope with double-channel compatible and collection switch relates to the field of medical auscultation, which is configured with double-channel compatible and convenient collection switch, analyzes and compares sound and sound wave pattern functions, and outputs two high-definition loudspeaker work of audio amplifier modules in two ways to connect two audio boxes, which is a new innovation for diagnosing heart and lung diseases. The excellent electric sound quality presents the extremely distinctive creative color of the system. The system includes electronic or traditional auscultation head to collect sound signals, and the sound signals are converted into electric sound signals by a microphone. The auscultation includes collecting heart and lung sound, and independently setting a microphone channel or a microphone wired socket interface with a convenient switch, forming the electric sound signal of the heart and lung auscultation collected by the convenient switch and the auscultation method to suppress howling. The electric sound signal enters the functional module circuit for processing through the appropriate transmission mode, amplifies the electric sound signal to drive the loudspeaker to broadcast and listen to the auscultation.

To provide a film for prepreg manufacturing that allows the production of laminated diaphragm without using adhesive, and to provide a prepreg and a diaphragm.SOLUTION: Provided is a film for prepreg manufacturing characterized in that at least one of the films 21 and 21 for prepreg manufacturing used for prepreg 2 manufacturing contains polypropylene and antioxidant.SELECTED DRAWING: Figure 2

The utility model relates to loudspeaker technology field, concretely is a kind of loudspeaker diaphragm, the loudspeaker diaphragm includes pad frame, diaphragm and conducting circuit, wherein pad frame is constituted by frame main body, support frame and connecting portion, the connecting portion is provided with multiple, multiple the connecting portion interval setting between frame main body and support frame, the one end of each connecting portion is connected with frame main body, and the other end is connected with support frame, the conducting circuit is formed on diaphragm using vacuum electroplating process, the diaphragm and pad frame are bonded into an organic whole, the diaphragm includes first composite layer, second composite layer, third composite layer and metal layer, wherein second composite layer is located between first composite layer and third composite layer. The utility model has simple structure, reasonable in design, small, meet the development demand of the miniaturization of sound-emitting electronic product, simultaneously, diaphragm conducting circuit cannot have abrasion in long-term vibration process, service life is long, it is worth promoting and using.

The method for tuning the flat acoustic transducer by area comprises the following steps: defining a forward center tuning area corresponding to the middle area of the diaphragm and a forward periphery tuning area corresponding to the periphery area of the diaphragm on the front cavity end face of the flat acoustic transducer; applying one or more layers of superimposed and combined tuning materials with different air permeability and thickness in the forward center tuning area and the forward periphery tuning area respectively; defining a backward center tuning area corresponding to the middle area of the diaphragm and a backward periphery tuning area corresponding to the periphery area of the diaphragm on the rear cavity end face of the flat acoustic transducer; and applying one or more layers of superimposed and combined tuning materials with different air permeability and thickness in the backward center tuning area and the backward periphery tuning area respectively. The structure for tuning the flat acoustic transducer by area comprises a flat acoustic transducer, a forward tuning system constructed on the front cavity end cover of the flat acoustic transducer, and a backward tuning system constructed on the rear cavity end cover of the flat acoustic transducer.

To provide a flexible electrostatic electroacoustic transducer that can generate sound waves with excellent sound quality and a low incidence of short-circuit failures. [Solution] A flexible electrostatic electroacoustic transducer having a pair of opposing conductive layers and a dielectric layer disposed between the pair of opposing conductive layers, An electrostatic electroacoustic transducer is provided, wherein one or both of the opposing pair of conductive layers are fibrous structures in which conductive material-containing layers are arranged on one or both sides.

A loudspeaker arrangement of a vehicle, comprises a speaker including an at least partially transparent diaphragm and a transducer coupled to the diaphragm, wherein movement of the transducer causes vibration of the diaphragm to generate sound by vibration of the diaphragm, the diaphragm having a front face directed towards an interior of the vehicle and an opposite rear face; and a carrier configured to support the diaphragm by supporting the diaphragm at its edges relative to a window glass of the vehicle such that the rear face of the diaphragm faces and is spaced from the window glass.

The application discloses a sound production monomer and a sound production module, and relates to the technical field of electric sound energy conversion, wherein the sound production monomer comprises a shell, a magnetic circuit system and a vibration system, the magnetic circuit system is connected with the shell, and the magnetic circuit system forms two magnetic gaps; the vibration system comprises a voice coil, a support and a first diaphragm, a separation diaphragm and a second diaphragm which are sequentially and spacedly arranged in the shell along a first direction; one end of the support is connected with the first diaphragm, and the other end of the support is connected with the second diaphragm. The first diaphragm and the separation diaphragm form a first back cavity, the separation diaphragm and the second diaphragm form a first front cavity, the shell is provided with a first front cavity sound hole which is in communication with the first front cavity and a first back cavity sound hole which is in communication with the first back cavity, so that the total effective vibration area of the sound production monomer is the superposition of the effective vibration area of the first diaphragm and the effective vibration area of the second diaphragm, and the effective vibration area of the vibration system is improved without increasing the product size.

Techniques described herein generally relate to generating an audio signal with a speaker. In some examples, a speaker device is described that includes a membrane and a shutter and driver device is configured to receive an audio signal, modulate it and generate electric signals to operate the speaker and generate an acoustic audio signal.

The application discloses a sound production device and electronic equipment, and relates to the technical field of electroacoustic transduction. The first vibration component and the second vibration component of the sound production device are opposite and spaced apart along a first direction and form a front sound cavity. The shell is provided with a sound outlet hole communicating with the front sound cavity. The first magnetic circuit component and the second magnetic circuit component of a magnetic circuit system are arranged on opposite sides of the vibration system along the first direction. The shell is made of a metal material. The sound outlet hole is arranged on one side of the intermediate support of the shell along a second direction. The thickness of the first magnet away from the sound outlet hole along the first direction is greater than the thickness of the first magnet close to the sound outlet hole along the first direction. The thickness of the second magnet away from the sound outlet hole along the first direction is greater than the thickness of the second magnet close to the sound outlet hole along the first direction. The sound production device of the application realizes double-sided radiation, improves sound production performance and overall loudness, and can also realize light and thin design, thereby meeting the light and thin design requirements of terminal products.

This invention discloses a sound-generating device and an electronic device, relating to the field of electroacoustic transduction technology. The sound-generating device includes a housing, a magnetic circuit system, and a vibration system. A first vibration component and a second vibration component of the vibration system are opposite to each other and spaced apart along a first direction, forming a front acoustic cavity between them. The housing has a sound outlet hole communicating with the front acoustic cavity. The first magnetic circuit component and the second magnetic circuit component of the magnetic circuit system are located on opposite sides of the vibration system along the first direction. Both the first and second voice coils are flat voice coils. A first diaphragm component is recessed towards the front acoustic cavity to form a first groove, and the first voice coil is disposed within the first groove. A second diaphragm component is recessed towards the front acoustic cavity to form a second groove, and the second voice coil is disposed within the second groove. This invention's sound-generating device not only achieves double-sided radiation, improving the sound-generating performance and increasing the overall loudness, but also enables a thin and light design, meeting the thin and light design requirements of terminal products.

A dual compression driver includes a first driver assembly having a first annular diaphragm disposed about a central axis and a first phasing plug disposed coaxially below the first annular diaphragm with a first plurality of apertures extending therethrough, and a second driver assembly having a second annular diaphragm disposed about the central axis and a second phasing plug disposed coaxially above the second annular diaphragm with a second plurality of apertures extending therethrough. A shared annular magnet is disposed between the first driver assembly and the second driver assembly. A back cover is mounted to the first phasing plug, and a front adapter is mounted to the second phasing plug and includes a hollow conduit formed therein defining a circular exit of the dual compression driver. Acoustic signals from the first and second pluralities of apertures merge and radiate through the hollow conduit to the circular exit.

This invention discloses a cabinet-less, ultra-massive horn loudspeaker module and system. It overcomes the double bias of existing technologies that require cabinet encapsulation and bolted fastening for the compression drive head. It utilizes an ultra-massive compression drive head weighing 60-140 kg, which is directly seated and locked to the ground via a carbon fiber base and at least three triangularly arranged feet. The horn device is directly locked to the acoustic throat of the drive head with screws. The module has no cabinet walls, completely eliminating wall vibration and back cavity standing waves. The bottom of the carbon fiber base is a closed plane, without any exposed flange mounting holes, threaded holes, connecting ears, or adhesive bonding surfaces. Multiple modules can be layered on a multi-layer support frame. The support frame serves as a shared inertial coupling platform for multiple modules, with direct metal-to-metal contact between the modules and the support frame, without any silicone pads. Actual testing shows that the support frame system outperforms independent modules, with a comprehensive improvement in axial sensitivity above 300 Hz, an improvement of nearly 5 dB above 12 kHz, and a reduction in THD from 1.5% to below 0.08%.

A speaker system with a slantingly disposed and circularly curved reflection chamber includes an enclosure, a speaker driver mountable at the front side of the enclosure, and a housing mountable at the rear side of the enclosure. The front side of the speaker driver forms a reference plane on a coordinate plane defined by a transverse axis and a longitudinal axis. The reflection chamber is formed at the front side of the housing, has a three-dimensional circularly curved configuration, has a portion located in the paths along which the speaker driver's acoustic waves propagate in the enclosure, so as to reflect such acoustic waves, and can be tilted with respect to the transverse axis and / or the longitudinal axis to form a transverse-direction angle and / or a longitudinal-direction angle between the reflection chamber and the reference plane. Accordingly, the asymmetric internal structure suppresses standing waves formation, improving the speaker system's acoustic performances.