652results about "Non-planar diaphragms/cones" patented technology

The present disclosure provides an earphone comprising a housing assembly, a speaker, and an ear hook assembly. The housing assembly includes a first accommodating cavity and a connecting portion that is provided with a socket extending along a first direction. The first accommodating cavity and a first channel and a second channel included in the socket are sequentially connected. A first abutment surface is disposed at transition between the first and second channels. The first abutment surface is inclined to the first direction. The ear hook assembly includes a first connecting end that includes a plug portion. The plug portion is inserted into the socket and includes a second abutment surface and an annular surface. The second abutment surface is inclined to the first direction and faces the first abutment surface. The annular surface extends from an inner edge of the second abutment surface toward the first abutment surface.

An acoustic output device is provided. The acoustic output device includes a housing; a bone conduction vibrator configured to generate bone conduction sound waves and transmit the bone conduction sound waves to a cochlea through the housing to produce sound; an air conduction vibrator configured to generate air conduction sound waves, the air conduction sound waves being transmitted to an ear through sound guiding holes in the housing; and a processing module configured to provide the bone conduction vibrator and the air conduction vibrator with a first audio signal and a second audio signal, respectively, the first audio signal and the second audio signal having a frequency division point, the first audio signal and the second audio signal including components with frequencies above and below the frequency division point, respectively. The frequency division point is not less than 600 Hz.

A loudspeaker includes: a connection wire that connects a voice coil and a connection terminal, wherein the connection terminal includes: a base; and a first protrusion and a second protrusion that integrally protrude from the base, and a deformed portion is included in at least one of a boundary portion between the base and the first protrusion or a boundary portion between the base and the second protrusion, the deformed portion being a portion that is plastically deformed in a direction in which the first protrusion and the second protrusion approach each other.

A dual compression driver includes first driver assembly and a second driver assembly each including a motor assembly disposed about a central axis, an annular diaphragm coaxial to and operably connected to each motor assembly, and a phasing plug coaxial to each diaphragm. Each phasing plug includes an input side oriented toward the diaphragm, an output side oriented away from the diaphragm, and a plurality of apertures extending therethrough. A hollow extension duct has a bottom end mounted to the phasing plug of the first driver assembly, wherein an inner surface of the extension duct and an outer surface of the second driver assembly form an annular pathway terminating at an annular exit of the dual compression driver. Acoustic signals from the first and second driver assemblies merge between the output sides of the phasing plugs and radiate radially outward to the annular pathway and through the annular exit.

A wearing assembly and an earphone are provided. The wearing assembly includes an elastic metal wire, a lead assembly, an insert member, and a wrapping assembly. The insert member is fixed to an end of the elastic metal wire and includes an insert body. The wrapping assembly includes a body wrapping portion wrapping a periphery of the elastic metal wire and the lead assembly, the lead assembly has an exposed portion that is exposed from the body wrapping portion and extends to the insert body; and at least one of the insert body and the wrap assembly further wraps a periphery of the exposed portion. The above solution uses at least one of the insert body or the wrap assembly to wrap the periphery of the exposed portion to improve a mounting yield of the wearing assembly.

The present invention relates to the technical field of electroacoustic conversion and provides a speaker, the speaker of the present invention connects a magnetic yoke and a basin frame through an elastic connection member to support a magnetic circuit system in vibration, a diaphragm, the magnetic yoke, the basin frame, and an elastic connection member together form a sealed back cavity. The vibration directions of the magnetic circuit system and the vibration system are in opposite directions. An upper housing and a lower housing are respectively fixed to the opposite sides of the basin frame, the upper housing, the diaphragm, and the basin frame together form a first front cavity for sound output, and the lower housing, the magnetic yoke, and the basin frame together form a second front cavity for sound output, so as to realize dual-sided sound output from the speaker.

A negative-stiffness audio transducer can include a frame, a voice coil, and a suspension assembly resiliently attaching the voice coil to the frame. The suspension assembly provides a negative stiffness to axial movement of the voice coil. The transducer further includes a diaphragm coupled to the voice coil such that the voice coil moves the diaphragm in an axially inward direction or an axially outward direction in response to an electrical signal. A stabilizer can be used to selectively move the diaphragm axially inward or outward to maintain the audio transducer in an operational state.

The present invention provides a speaker including a first frame, a second frame, a first vibration system, a second vibration system, and a magnetic circuit system. The first vibration system includes a first diaphragm and a first voice coil. The second vibration system includes a second diaphragm and a second voice coil. The magnetic circuit system includes a first main magnet, first auxiliary magnets a second main magnet and second auxiliary magnets. A projection of the second voice coil along a vibration direction of the speaker is located in the first voice coil, and the projection of the first voice coil on the magnetic circuit system along the vibration direction of the speaker is located on the second auxiliary magnet. In present invention, the BL of the first voice coil is increased, the sensitivity of the speaker is improved, and the loudness becomes larger.

A compression driver for an omnidirectional loudspeaker includes a motor assembly and an annular diaphragm disposed coaxially below and operably connected to the motor assembly. A phasing plug is mounted to the motor assembly and includes a top portion facing the diaphragm, a bottom portion extending downwardly from the top portion from a first end to a second end, and a plurality of apertures that extend therethrough. The bottom portion has an inner surface that defines a cavity and widens from the first end to the second end, the inner surface having a plurality of radial channels with a diagonal orientation acoustically connected to the apertures. A housing is mounted to the phasing plug and received within the cavity, the housing having an outer surface spaced from the inner surface of the bottom portion to form a waveguide arranged to radiate sound waves downwardly and outwardly with asymmetric vertical directivity.

The present application provides a loudspeaker and an electronic device. The loudspeaker comprises a housing, a magnetic circuit system, a vibration system, and an adjustment system. The magnetic circuit system is fixed to the housing. A clearance hole is formed in a middle magnetic circuit of the magnetic circuit system. The clearance hole is spaced apart from a magnetic gap. A diaphragm of the vibration system comprises a first portion, a second portion, and a third portion. The third portion is connected between the first portion and the second portion. The adjustment system comprises a first magnetic portion, a magnetic attraction portion, and a second magnetic portion. The first magnetic portion and the second magnetic portion are located on two opposite sides of the diaphragm, respectively. The second magnetic portion is located in the clearance hole, and the magnetic attraction portion is fixedly connected to the first portion. The distance between the magnetic attraction portion and the first magnetic portion is equal to the distance between the magnetic attraction portion and the second magnetic portion, and the distance between the first portion and the second magnetic portion is less than the distance between the second portion and the second magnetic portion. The first portion and the third portion define a recessed space, and the projection of the first portion on the middle magnetic circuit is located in the clearance hole. The magnetic attraction portion is attractive to both the first magnetic portion and the second magnetic portion.

A loudspeaker (1) comprising a diaphragm (2), a voice coil (10) mounted on the diaphragm (2) to move with the diaphragm (2), a chassis (4), and a spider (20) is disclosed. The spider (20) extends across a gap between the chassis (4) and the voice coil (10) and comprises a plurality of legs (36), each leg (36) extending radially across at least a portion of the gap. The diaphragm (2) is configured to move from a neutral position to an extended position. When the diaphragm (2) is in the neutral position the cross-sectional shape of each leg (36) follows a line which varies in height with respect to a reference plane, said line comprising first, second and third curves, the second curve being located in between the first and third curves. Either the first and third curves are convex and the second curve is concave, or the first and third curves are concave and the second curve is convex. Thus, the spider (20) may have legs (36) having an ‘m’ or ‘w’ shaped profile in at least one region of the leg (36).

The invention belongs to the technical field of electroacoustics, and particularly relates to a vibrating plate for a sound production device, a vibrating diaphragm assembly and the sound production device, and main body part preparation raw materials of the vibrating plate for the sound production device comprise an aluminum alloy material and a heat dissipation enhancing filler mixed in the aluminum alloy material, the volume fraction of the heat dissipation enhancing filler in the preparation raw materials of the main body part is 5%-50%, the color difference L value of the outer surface of the vibration plate is 30-80, and the emissivity of the vibration plate at the temperature of 100 DEG C is 0.5-0.98. According to the vibration plate for the sound production device, the preparation raw materials comprise the aluminum alloy material and the heat dissipation reinforcing filler mixed in the aluminum alloy material, and at least the problems that an existing vibration plate is low in elasticity modulus and poor in heat dissipation effect can be solved.

The present application mainly relates to a diaphragm, an air conduction speaker, and a wearable electronic device. The diaphragm comprises: a center main body and a corrugated ring; the corrugated ring is connected to the outer periphery of the center main body; the corrugated ring comprises two arc-shaped sections and two connection sections; the two arc-shaped sections are spaced apart from and opposite to each other; the two connection sections are spaced apart from each other side by side, and are connected between two pairs of opposite ends of the two arc-shaped sections in a one-to-one correspondence, wherein a plurality of corrugated grooves arranged at intervals in the direction of extension of the arc-shaped sections are formed in each arc-shaped section; two ends of each first corrugated groove respectively extend toward an inner ring and an outer ring of the corrugated ring; and the plurality of corrugated grooves are arranged radially in a same spiral orientation. In this way, the working stability and the service life of the diaphragm can be effectively improved, thereby prolonging the service life of the wearable electronic device.

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.

An integrated sounding device is disclosed. The integrated sounding device includes a housing having a sound outlet, a speaker unit and a fixing member. The speaker unit includes a diaphragm having a first suspension, a second suspension and a dome. The fixing member connects an inner fixing part of the second suspension and the housing. The dome includes a first side close to the sound outlet and a second side far away from the sound outlet. The two sides are respectively arranged at opposite sides of the fixing member. The first side has a first groove, and the second side has a second groove. A filler for balancing amplitudes of the two sides is provided in the first groove. The integrated sounding device can balance the acoustic mass of the vibration system, so as to balance the vibrations of the vibration system and eliminate the sound distortions.

The present invention provides a speaker including a first frame, a second frame, a first vibration system, a second vibration system, and a magnetic circuit system. The first vibration system includes a first diaphragm and a first voice coil. The second vibration system includes a second diaphragm and a second voice coil. The magnetic circuit system includes a first main magnet, first auxiliary magnets, a second main magnet and second auxiliary magnets. A projection of the first voice coil along a vibration direction of the speaker is located out of the second voice coil, and the projection of the second voice coil along the vibration direction of the speaker is located on the first main magnet. In present invention, the BL of the second voice coil is increased, the sensitivity of the speaker is improved, and the loudness becomes larger.

A method for synthesizing an audio signal for use with a vehicle horn device to generate an audible warning sound, wherein the audio signal includes a fundamental frequency and harmonics corresponding to the fundamental frequency. The method includes selecting a weight for each of a plurality of harmonics corresponding to a fundamental frequency; synthesizing the precursor audio signal only from the fundamental frequency and the plurality of harmonics using the selected weights; the precursor audio signal is compressed one or more times to provide an audio signal having a crest factor below a predetermined threshold.

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

A horn device for a vehicle. The horn device includes: a horn activation mechanism operable by a vehicle user; a speaker for generating sound radiated outward from a vehicle, where the speaker includes a drive unit and a diaphragm, where the drive unit is configured to move the diaphragm along a movement axis, where the diaphragm has a front surface facing a forward direction parallel to the movement axis and a rear surface facing a rear direction parallel to the movement axis. The rear surface faces a backward direction parallel to the movement axis; the loudspeaker comprises a frame, and a vibrating diaphragm is hung on the frame through at least one suspension. Wherein at least one suspension includes a surrounding member located around the diaphragm; and wherein the diaphragm and the surround are formed from a single piece of material; wherein the speaker is configured to, in response to a user of the vehicle operating the horn activation mechanism, generate an audible warning sound based on an audio signal having a crest factor of a predetermined threshold lower than 6 dB or less.

The invention provides a fixing support, a control module, a base and payment equipment. The control module comprises a fixing support, a power supply assembly, a sound production assembly and an electric control assembly, the power supply assembly, the sound production assembly and the electric control assembly are fixed on the fixing support, the control module is fixed on the base, and the base serves as a partial structure of the payment equipment. Through the arrangement, the power supply assembly, the sound production assembly and the electric control assembly can be all arranged on the fixed bracket, so that the highly integrated design of multiple components is realized, and the installation convenience is improved.

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.

An electrical current generating device having a sound wave force magnifying structure in the form of a force transmission pin which is longitudinally slidable within a body bore and having a proximal end of a large area for receiving sound wave forces, and having a greatly reduced area distal end which bears on a piezoelectric element.

The present invention discloses a diaphragm for a speaker and a speaker. The diaphragm is made of a single-layer foamed polyester material, and the foamed polyester material is formed into a structure with a dense surface and multiple closed pores inside. The density range of the foamed polyester material is 0.2 g / cm<supgt;3< / supgt> - 1.2 g / cm<supgt;3< / supgt>. The diaphragm is formed into an integrally molded convex structure. The diaphragm includes a first arched portion and a second arched portion arranged in a ring around the first arched portion. The first arched portion is connected to the second arched portion, and the outer periphery of the second arched portion is connected to the housing of the speaker. According to the diaphragm of the present invention, by using a single-layer foamed polyester material to form an integrally molded convex structure, the foamed polyester material has a high specific modulus, enabling the speaker to exhibit better acoustic performance in the medium and high frequencies. Moreover, the integrally molded convex structure can not only simplify the assembly process of the diaphragm but also have good consistency during the vibration process, thereby greatly improving the sound production effect of the speaker.

A transducer assembly with two active acoustic radiators. The two active acoustic radiators can face each other and be driven with signals having the same electrical polarity. The moveable features of the two active acoustic radiators can move toward and away from each other as the two active acoustic radiators are driven, which can reduce reaction forces transferred to an interior trim of a vehicle to decrease vibration thereof. The two active acoustic radiators can include an inverted topology with the motor assemblies disposed on a front side of the diaphragms of the two active acoustic radiators opposite rear suspension elements, which can efficiently utilize an existing packaging envelope of a conventional acoustic radiator to provide an equivalent combined piston area as the conventional acoustic radiator. A structural member can mechanically couple the motor assemblies in opposition to each other to provide improved force canceling characteristics.

An acoustic device includes a box and a speaker unit accommodated in an internal space of the box, wherein the box includes a front wall having an opening and a rear wall facing the front wall, the speaker unit includes a frame, a diaphragm supported on the frame so as to be capable of vibrating, a voice coil configured to vibrate together with the diaphragm, and a magnetic circuit configured to apply a magnetic field to the voice coil, the magnetic circuit includes a magnet and a yoke made of a magnetic material, a magnetic gap in which the voice coil is disposed is formed in a part of the yoke, the opening is configured to allow sound pressure emitted from the diaphragm to be released to an external space, and a part of the yoke is disposed within the rear wall.

Described embodiments include an audio speaker configured to emit sound in a main sound emission direction. The audio speaker comprises a voice coil, a movable diaphragm connected to the voice coil and configured to move together with the voice coil, the movable diaphragm comprising, in a direction opposite the main sound emission direction, a front surface and a rear surface opposite the front surface. The audio speaker further comprises a light source configured to emit light which is located, in a direction of the main sound emission direction, below the voice coil, and a light guide configured to guide the light emitted from the light source to the front surface of the movable diaphragm.

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.

A speaker comprises a magnet, a movable coil, a support element, and a membrane connected to the coil, and the membrane converts the motion of such coil into sound, said membrane being inflatable. According to the invention, the membrane is made of a single piece, is ring-shaped, exchangeable and protrudes from the support element, said ring-shaped membrane producing broadband sound and allowing both low-frequency sound and harmonics thereof, as well as intermediate-frequency and high-frequency sound to be reproduced-in space and in a substantially isotropic manner-.

An headphone is provided. The headphone includes a housing assembly, an interface assembly, and a wire assembly. The housing assembly includes a first housing, the first housing being provided with a receiving slot and an accommodation cavity in communication with the receiving slot; an interface assembly inserted within the receiving slot; a circuit board disposed within the accommodation cavity; and a wire assembly electrically connecting the circuit board and the interface assembly. In the manner disclosed above, a freedom of a mounting position and a mounting posture of the interface assembly may be improved, which facilitates the assembly of the headphone.

A speaker includes a frame, a magnetic circuit system, and a diaphragm structure. The magnetic circuit system is arranged in the frame. A central part of the diaphragm structure is located on a voice coil of the magnetic circuit system. A connecting part of the diaphragm structure surrounds an outer edge of the central part. A first end of the connecting part faces the voice coil, and a second end of the connecting part is provided with a protruding structure. A hanging edge of the diaphragm structure includes a first bending section and a second bending section connected to each other, and the second bending section is connected to the protruding structure. In a normal direction of a bottom surface of the frame, the protruding structure is higher than a connection between the first bending section and the second bending section.