64results about "Non-planar diaphragms/cones" patented technology

A heat dissipation module, including vapor chamber and sound-producing device attached and fixed to vapor chamber; vapor chamber includes vapor chamber body having receiving cavity, capillary wick in receiving cavity, and opening on side of vapor chamber body close to sound-producing device; opening connects receiving cavity with outside, sound-producing device is supported by vapor chamber body and fixed to opening to seal opening, and receiving cavity is filled with heat dissipation liquid; sound-producing device includes magnetic circuit unit spaced apart from vapor chamber, and first vibration unit and second vibration unit on opposite sides of magnetic circuit unit. Magnetic circuit unit drives first vibration unit and second vibration unit to vibrate; sound-producing device includes first frame, one end of first frame is fixed to side of magnetic circuit unit close to vapor chamber, and another end of first frame is supported by vapor chamber and arranged around opening.

A diaphragm for an audio transducer includes an annular body defining a central aperture, a first surface of the body extending between a radially inner edge adjacent the aperture and a radially outer edge, and a second surface of the body opposite the first surface, the second surface extending between the radially inner edge and the radially outer edge. Along a first azimuthal direction, the body has a first range of thicknesses extending between the first and second surfaces. Along a second azimuthal direction, the body has a second range of thicknesses extending between the first surface and the second surface, the second range of thicknesses being different than the first range of thicknesses.

This invention discloses a sound-generating unit and a sound-generating module, relating to the field of electroacoustic energy conversion technology. The sound-generating unit includes a housing, a magnetic circuit system, and a vibration system. The magnetic circuit system is connected to the housing and forms two magnetic gaps. The vibration system includes a voice coil and a first diaphragm, an isolation diaphragm, and a second diaphragm sequentially spaced along a first direction within the housing. A first rear cavity is formed between the isolation diaphragm and the first diaphragm, and a first front cavity is formed between the isolation diaphragm and the second diaphragm. The housing has a first front cavity acoustic hole communicating with the first front cavity and a first rear cavity acoustic hole communicating with the first rear cavity. This ensures that the total effective vibration area of ​​the sound-generating unit is the sum of the effective vibration areas of the first and second diaphragms, thereby increasing the effective vibration area of ​​the vibration system without increasing the product size.

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.

This invention relates to a diaphragm molding and mating process, belonging to the field of electroacoustic product manufacturing technology. The process includes the following steps: First, a base frame with an outer metal ring is placed inside a lower template. Adhesive is applied around the outer edge of the inner side of a hole in the center of the base frame, with the outer metal ring acting as a rigid support around the base frame. Second, the diaphragm is placed inside the hole and covered with the adhesive area. Subsequently, a downward, uniformly distributed pressure is applied to the diaphragm and base frame, ensuring a tight fit between them in a flat state, followed by pressure-holding and curing. Finally, after bonding with the structural component, the outer metal ring is cut and separated. This invention, by introducing an outer metal ring as a rigid support, effectively overcomes the problem of edge warping caused by the inherent stress of the base frame and diaphragm during molding and bonding with the structural component.

The application discloses a conductive diaphragm and a preparation method and application thereof. The conductive diaphragm comprises a diaphragm substrate, and is provided with a voice coil lead connecting area, a folded ring area and a pad connecting area. A composite conductive coating is arranged on the surface of the diaphragm substrate. The composite conductive coating comprises a first conductive part located in the folded ring area, a second conductive part located in the voice coil lead connecting area and the pad connecting area, and a third conductive part for connecting the first conductive part and the second conductive part. The sheet resistance and flexibility of the composite conductive coating gradually decrease in the extension direction from the folded ring area to the voice coil lead connecting area and the pad connecting area. According to the actual strain distribution of the conductive diaphragm during operation, the conductive coating is designed in sections. The first conductive part with high flexibility and high sheet resistance is arranged in a high strain area, the second conductive part with low flexibility and low sheet resistance is arranged in a low strain area, and the third conductive part with gradient transition design is arranged. Therefore, the reliability and the conductive stability of the conductive diaphragm are effectively improved.

The application relates to speaker configured to emit sound in a main sound emission direction, the speaker comprising a movable diaphragm; a drive unit comprising a magnet generating a magnetic field, a first pole piece comprising a through hole arranged to contact the magnet on a first surface of the magnet, a second pole piece arranged to contact the magnet on a second surface of the magnet opposite the first surface, wherein the first and second pole pieces are configured to generate a magnetic field in an air gap between the first and second pole piece where the diaphragm is located. The speaker includes a light source configured to emit light and a light guide configured to guide the light emitted by the light source through the through hole in direction of the main sound emission direction to the movable diaphragm.

The application provides a frequency-modulated bionic vocal cord and a bionic robot, the frequency-modulated bionic vocal cord comprises a substrate (1) and an acoustic unit (2), the acoustic unit (2) comprises a supporting part (21) and a diaphragm (22), the supporting part (21) is fixedly connected to the substrate (1), the supporting part (21) is surrounded to form a frame, the diaphragm (22) is covered and connected to the supporting part (21), the supporting part (21) supports the edge of the diaphragm (22), the supporting part (21) is spaced apart from the substrate (1) and forms a cavity (S), and external force applied to the substrate (1) can make the substrate (1) outwardly protrude and bend and deform or inwardly protrude and bend and deform, so that the substrate (1) drives the diaphragm (22) to deform under the guidance of the supporting part (21), and the natural frequency of the diaphragm (22) is changed.

This utility model relates to a piezoelectric integrated PE diaphragm tweeter in the field of electroacoustic conversion. It includes a piezoelectric buzzer cavity with a dust cover, and further includes: a fixed frame plate with a rectangular insertion groove on its lower end face, integrally formed with the lower inner wall of the piezoelectric buzzer cavity; and a carrier plate, inserted into the piezoelectric buzzer cavity, with its upper end face abutting against the fixed frame plate. In this application, the carrier plate achieves rapid positioning through the cooperation of the insertion block and the insertion groove of the fixed frame plate to improve assembly efficiency. Pressing the carrier plate automatically sprays adhesive to reduce processes and lower labor costs. The bonding cavity and the infusion cavity cooperate to ensure uniform glue filling to improve connection firmness. After the fixed frame plate and the cavity are integrally formed and the adhesive is discharged, the sealing strip deforms into a flat sealing gasket, filling the tiny gaps between the insertion block and the insertion groove. The combination of these two elements improves the cavity's sealing performance, preventing sound waves from generating noise due to reflection from gaps within the cavity.

A phasing plug for a compression driver includes a body having an inlet side with a front surface and an outlet side with a rear surface, the body disposed about a central axis. A plurality of channels are formed through the body from the inlet side to the outlet side, each of the plurality of channels having an annular configuration with an entrance at the front surface, an exit at the rear surface, and a path length between the entrance and the exit. The plurality of channels have unequal path lengths such that acoustical signals traveling through the plurality of channels form a convex wavefront at the outlet side of the phasing plug.

The application discloses a sound generating device and a sound generating module, and relates to the technical field of loudspeakers. The sound generating device comprises a shell, a magnetic circuit assembly, a vibration assembly and two connecting structures. The magnetic circuit assembly has two magnetic gaps which are arranged at intervals along a second direction. The vibration assembly comprises a diaphragm and two voice coils. The two voice coils are respectively arranged in the two magnetic gaps. The two voice coils can swing along the axis of extension in a third direction under the action of magnetic force. The connecting structure comprises a plurality of connecting rods which are rotationally connected in sequence. Two adjacent connecting rods are connected through a first rotating part. The first rotating part is made of rigid material. When the voice coil rotates, each connecting rod can be swung, so that the rotation driving of the voice coil is converted into linear driving in a first direction. The voice coil only needs a small swing amplitude to drive the diaphragm to realize a large vibration displacement. The rigid first rotating part has the characteristic of no parasitic displacement, and ensures that there is no delay phenomenon in the displacement transmission process of the plurality of connecting rods.

A directional sound system includes a base member and at least one pane element secured to the base member. The base member includes a base surface. An exciter is secured to the at least one pane element and includes an exciter surface. An adhesive isolation ring is applied between the at least one pane element and the base member. A predetermined thickness of the adhesive isolation ring creates a gap between the base surface of the base member and the exciter surface. The at least one pane element is positioned on the base surface of the base member. The exciter generates a directional signal when energized.

The application discloses a sound generating device and electronic equipment, and relates to the technical field of loudspeakers. The sound generating device comprises a shell, a vibration assembly and a magnetic circuit assembly. The vibration membrane assembly comprises a first vibration membrane, a separation vibration membrane and a second vibration membrane which are arranged at intervals along a first direction. A voice coil is connected to the second vibration membrane. A connecting portion is arranged between the first vibration membrane and the second vibration membrane. The connecting portion abuts against the separation vibration membrane, so that a first rear cavity is defined between the first vibration membrane and the separation vibration membrane, a first front cavity is defined between the second vibration membrane and the separation vibration membrane, and a second rear cavity is defined between the magnetic circuit assembly and the second vibration membrane. The cavity walls of the first rear cavity and the second rear cavity are provided with rear cavity sound holes, and the cavity wall of the first front cavity is provided with a front cavity sound hole. The total equivalent radiation area is the superposition of the equivalent areas of the first vibration membrane and the second vibration membrane, which is beneficial to improving the sensitivity of the loudspeaker.

Various implementations include miniature loudspeaker drivers. In some aspects, an electro-acoustic driver includes: a cone having a surface area configured to radiate acoustic energy; a suspension coupled to the cone; and a support structure coupled to the suspension and having an outer linear dimension in a plane of the cone of approximately 6.0 millimeters (mm) or less, wherein the surface area of the cone is at least 49% of an overall cross-sectional area of the electro-acoustic driver in the plane of the cone.

Embodiments of the present disclosure provide a sound production component including a diaphragm, a magnetic circuit assembly, a coil, and a housing. The coil is connected to the diaphragm and is at least partially disposed in a magnetic gap formed by the magnetic circuit assembly, and the coil drives the diaphragm to vibrate to produce a sound after being energized. A sound outlet is provided on an inner side surface of the housing for directing a sound generated at a front side of the diaphragm out of the housing. The diaphragm comprises a main body region and a folded-ring region surrounding the main body region, the folded-ring region comprising an arc-shaped segment and a connection segment connected to the main body region. A projection of a center of the sound outlet along a vibration direction on the diaphragm is on an inner side of the arc-shaped segment.

A directional sound system includes a base member with at least one pane element fixed to the base member. The base member includes a base surface. An exciter is fixed to the at least one pane element and includes an exciter surface. An adhesive isolation ring is applied between the at least one pane element and the base member. A predetermined thickness of the adhesive isolation ring creates a gap between the base surface of the base member and the exciter surface. The at least one pane element is positioned on the base surface of the base member. The exciter when energized generates a directional signal.

The present application provides a speaker having a frame having an accommodating space, a vibration system accommodated in the frame, and a magnetic circuit system. The vibration system includes a diaphragm and a voice coil. The diaphragm includes a dome having a planar portion perpendicular to a vibration direction and a side surface portion extending from an edge of the planar portion toward the magnetic circuit system. The speaker further comprises a Flexible Printed Circuit (FPC) board electrically connected to the voice coil. The speaker in the application effectively avoids the problem in the related art where the magnetic circuit system occupies less space and thus has a small volume, thereby improving the acoustic performance of the speaker.

A speaker module includes a first MEMS speaker and a second MEMS speaker disposed at two opposite surfaces of a circuit board and mounted in a flipped manner; the first MEMS speaker including a first diaphragm structure electrically connected to a first electrode connection point and is controlled by the circuit board to vibrate; the second MEMS speaker including a second diaphragm structure electrically connected to a second electrode connection point and is controlled by the circuit board to vibrate.

A speaker device (101, 201, 301) comprising a first diaphragm (103, 203, 303), an opposing second diaphragm (104, 204, 304), and a frame (102, 202, 302) comprising a first frame part (102a, 202a) on which the first diaphragm (103, 203, 303) is mounted and an opposing second frame part (102b, 202b) on which the second diaphragm (104, 204, 304) is mounted. A first speaker driver (105, 205, 305) drives the first diaphragm (103, 203, 303) and a second speaker driver (106, 206, 306) drives the second diaphragm (104, 204, 304). The first frame part (102a, 202a), a movable first coil bracket (107) of the first speaker driver (105, 205, 305), and a resilient first damper member (111) form a first single piece integrally formed unitary component. The second frame part (102b, 202b), a moveable second coil bracket (109) of the second speaker driver (106, 206, 306) and a resilient second damper member (112) form a second single piece integrally formed unitary component.

To provide a device including a vibrating device capable of generating vibration or sound by vibrating a vibrating member and improving acoustic characteristics and / or sound pressure characteristics.SOLUTION: In a device including a vibrating member and a vibrating device 130 configured to vibrate the vibrating member, the vibrating device includes a first vibrating portion 131 and a second vibrating portion 132 different from the first vibrating portion.SELECTED DRAWING: Figure 3A

Tone generator producing a tone by vibrating a membrane (72), comprising: a housing (1) with a first space (5) open to outside air through a sound emission hole (84), and a second space (6) separated from the first space (5) by the membrane (72);and a shielding plate (28) which is arranged in the first chamber (5) such that it faces the membrane (72) while being separated from the membrane (72), wherein when the membrane (72) is displaced to the first chamber (5) by a pressure difference between the first chamber (5) and the second chamber (6), the membrane (72) comes into contact with the shielding plate (28) to limit deformation of the membrane (72), the shielding plate (28) has a shape corresponding to the membrane (72), the membrane (72) has an inner circumferential section (721) which is convex towards the second chamber (6), and an outer circumferential section (722) which is inclined from an outer edge of the inner circumferential section towards the first chamber (5), and the shielding plate (28) has an inner circumferential section (281) which is convex away from the membrane (72), and an outer circumferential section (282) which is inclined away from the membrane (72) from an outer edge of the inner circumferential section.;

A speaker and / or an electronic device are provided. The electronic device includes the same may include a diaphragm, a yoke disposed to face the diaphragm and including an avoidance groove formed on a surface thereof facing the diaphragm, a coil mounted to one surface of the diaphragm and disposed between the diaphragm and the yoke, and a first magnet mounted to the yoke and disposed to be surrounded by at least part of the coil or a second magnet disposed to surround at least part of the coil. The coil may be disposed to make a surface thereof facing the yoke correspond to the avoidance groove and configured to linearly reciprocate the diaphragm by receiving an electric signal.

This provides a cost-effective method for using light guides in different magnetic assemblies of speakers with illuminated diaphragms. [Solution] The audio speaker 100 comprises a diaphragm 150 and a drive unit 105. The drive unit 105 comprises a magnet 110 and a first pole piece 120 and a second pole piece 130 having a through hole 125, the first pole piece 120 and the second pole piece 130 generating a magnetic field in the air gap 161 between the first pole piece 120 and the second pole piece 130 on which the diaphragm 150 is positioned. The audio speaker 100 further includes a light source 185 configured to emit light and a light guide 200 that guides the light emitted by the light source 185 through the through hole 125 to the diaphragm 150 in the direction of the main sound emission direction.

This invention discloses a sound-generating device and module, relating to the field of loudspeaker technology. The sound-generating device includes a housing, a vibration component, a magnetic circuit component, and two connecting structures. The vibration component includes two diaphragms and two voice coils, each with a first side close to each other and a second side far apart. The magnetic circuit component is located between the two diaphragms, and both voice coils can oscillate along a third-direction axis under magnetic force. The two connecting structures are located on opposite sides of the two voice coils along the first direction. When the two voice coils rotate, the connecting structures are moved, thus converting the rotational motion of the voice coils into linear motion of the two diaphragms and driving them to vibrate in the same direction, resulting in the two diaphragms exhibiting opposite vibration trends of inward and outward, respectively. This method of converting the rotational motion of the voice coils into linear motion of the diaphragms allows for a larger rotational space for the voice coils within the same product thickness, thereby enabling a larger displacement.