The present application relates to the technical field of smart devices, and discloses a smart device-based system and method for environment scenario identification and decision-making. The system comprises: an acquisition module, which is provided in a smart device and is used for acquiring environment data; a data processing module, which is connected to the acquisition module and is used for processing the environment data to obtain an environment scenario feature; an environment scenario identification module, which is connected to the data processing module and is used for identifying the environment scenario feature to obtain a corresponding environment scenario; and a decision-making module, which is connected to the environment scenario identification module and is used for calling, on the basis of the environment scenario, a preset configuration policy to automatically adjust an audio configuration parameter of the smart device. According to the present application, in the described manner, different environment scenarios can be identified, and corresponding audio configuration parameters of the smart device can be matched in different environment scenarios, thus effectively improving the user experience.
H04M 1/19 - Arrangements of transmitters, receivers, or complete sets to prevent eavesdropping, to attenuate local noise or to prevent undesired transmissionMouthpieces or receivers specially adapted therefor
G10L 25/51 - Speech or voice analysis techniques not restricted to a single one of groups specially adapted for particular use for comparison or discrimination
2.
ENVIRONMENT SCENE RECOGNITION AND DECISION-MAKING SYSTEM AND METHOD BASED ON SMART DEVICE
Provided is an environment scene recognition and decision-making system and method based on a smart device. The system includes: an acquisition module disposed in the smart device to acquire environment data; a data processing module connected to the acquisition module to process the environment data to obtain environment scene features; an environment scene recognition module connected to the data processing module to recognize the environment scene features to obtain corresponding environment scenes; and a decision-making module connected to the environment scene recognition module to call a preset configuration strategy according to the environment scenes to automatically adjust audio configuration parameters of the smart device. Through the above methods, different environment scene may be recognized and the corresponding audio configuration parameters of the smart device may be adapted in different environment scenes, which may effectively improve the user experience.
A voice detection method and apparatus, a device, and a storage medium. The voice detection method comprises: acquiring an audio sequence (S10); extracting first audio features for the audio sequence, and performing voice detection on the audio sequence on the basis of a first audio feature extraction result to obtain a first voice detection result (S20); extracting a second audio feature for the audio sequence, and performing voice detection on the audio sequence on the basis of a second audio feature extraction result to obtain a second voice detection result (S30); and determining a voice detection result of the audio sequence on the basis of the first voice detection result and the second voice detection result (S40). Voice detection can be performed in a non-training manner, the computing power is low, and the detection precision is high.
A voice detection method, a voice detection device, and a computer device are provided. The voice detection method includes acquiring an audio sequence; extracting a first audio feature from the audio sequence, and performing voice detection on the audio sequence according to the first audio feature to obtain a first voice detection result; extracting a second audio feature from the audio sequence and performing the voice detection on the audio sequence according to the second audio feature to obtain a second voice detection result; and determining a voice detection result of the audio sequence according to the first voice detection result and the second voice detection result. The voice detection method realizes voice detection in a non-training way and has low computing power and high detection accuracy.
G10L 25/78 - Detection of presence or absence of voice signals
G10L 25/09 - Speech or voice analysis techniques not restricted to a single one of groups characterised by the type of extracted parameters the extracted parameters being zero crossing rates
5.
SOUND-ABSORBING MATERIAL BLOCK, METHOD FOR PREPARING THEREOF, AND ELECTRONIC DEVICE
A method for preparing a sound-absorbing material block, the method includes steps of mixing raw materials to prepare a mixed paste and filling the mixed paste into a speaker rear cavity of a speaker provided in advance, and then sequentially performing drying treatment and dehydration treatment to obtain the sound-absorbing material block. On one hand, the sound-absorbing material block is prepared by mixing the porous material, the gelling agent, the cross-linking agent, the binder, the foaming agent, and the solvent, so that the prepared sound-absorbing material block has high strength, is not prone to breakage, and has good performance. And on an other hand, the sound-absorbing material block adapted to the rear cavity of the speaker is directly prepared, so that steps of cutting and filling can be omitted, and a filling process is simplified.
H04R 1/28 - Transducer mountings or enclosures designed for specific frequency responseTransducer enclosures modified by provision of mechanical or acoustic impedances, e.g. resonator, damping means
A preparation method of copper foam includes coating copper paste on a release film to form a coating sheet with a thickness of 50-200 μm on the release film, peeling off the release film to obtain a copper foam preform after drying the release film with the coating sheet, and performing a glue discharging process on the copper foam preform and sintering the copper foam preform to obtain the copper foam having a thickness of 30-120 μm and having a porosity of 50-80%. The thickness of the copper foam is reduced, which ensures a balance between the porosity and a structural strength of the copper foam, so the copper foam has a good water absorption performance, and a heat dissipation performance of the copper foam is effectively improved.
The present disclosure discloses a speaker comprising a housing and a sound producing unit fixed to the housing; the sound producing unit comprises: a frame, a vibration system, a magnetic circuit system and a spring damping element; the spring damping element supports the magnetic circuit system in vibration in the holding space; a counterweight block housed in the rear cavity and fixed to a side of magnetic bowl away from the magnetic circuit system. The speaker of the present invention constitutes another vibration system by means of a magnet or a magnetic bowl and a spring damping element, which vibrates opposite to the vibration system consisting of a diaphragm-dome-voice coil, resulting in a reduction of the force on the cone frame; the addition of a counterweight block reduces the effect of air in the rear cavity on the magnet; the magnetic through-holes and leakage holes optimize vibration damping.
H04R 1/28 - Transducer mountings or enclosures designed for specific frequency responseTransducer enclosures modified by provision of mechanical or acoustic impedances, e.g. resonator, damping means
A rubber voice diaphragm is composed of main rubber, distortion improving agent, vulcanizing agent, accelerant, reinforcing filler, and other processing aids. The distortion improving agent is a substance with number-average molecular weight ranging from 1000 to 1000000, and structure of distortion improving agent has special chemical crosslinking points that participate in rubber vulcanization reaction. The special chemical crosslinking points are present in amount of 0.01% to 30% based on mass of distortion improving agent. The distortion improving agent is added in amount of 0.1% to 100% based on mass of main rubber. Frequency bands for improving distortion of distortion improving agent range from 0.1 HZ to 20000 Hz. In the rubber voice diaphragm provided in the present disclosure, a special distortion improving agent is selected, which solves the problems of molecular migration, poor reliability, a high modulus change rate, and poor rubber mechanical properties existing in traditional modified method.
A speaker box (100) and an electronic device. The speaker box (100) comprises: a housing (110), which has a receiving space; and a speaker unit (120) and a foam sound-absorbing sheet (130), which are received in the receiving space, wherein the speaker unit (120) and the housing (110) enclose a rear cavity (140), and the foam sound-absorbing sheet (130) is adhered to the inner wall surface of the rear cavity (140); and the foam sound-absorbing sheet (130) comprises a foam block (131) and sound-absorbing powder (132) adhered to the foam block (131). Providing the foam sound-absorbing sheet (130) can effectively reduce the resonance frequency of the speaker and improve the acoustic performance, and the speaker has a stable structure and is simple to manufacture.
The present invention relates to the field of new materials, and provides a rubber diaphragm and a preparation method therefor, and a sound-making device. The rubber diaphragm consists of main-body rubber, a distortion improver, a vulcanizing agent, an accelerant, a reinforcing filler and other processing aids, wherein the distortion improver is a substance that has a number-average molecular weight ranging from 1,000 to 1,000,000, and the structure of the distortion improver has special chemical crosslinking points capable of participating in the vulcanization reaction of rubber; the content of the special chemical crosslinking points accounts for 0.01-30% of the mass of the distortion improver; the addition amount of the distortion improver accounts for 0.1-100% of the mass of the main-body rubber; and the distortion improver improves distortion at a frequency band of 0.1-20,000 HZ. A special distortion improver is selected and used in the rubber diaphragm provided by the present invention, thereby solving the problems of molecular migration, poor reliability, a high change rate of modulus, poor mechanical properties of rubber, etc., in traditional modification methods.
A speaker includes housing having receiving space and sound-producing unit received in receiving space. The sound-producing unit includes frame; vibration unit; magnetic circuit unit; spring damping element elastically connects magnetic circuit unit to frame and supports magnetic circuit unit to vibrate in accommodating space. A weight is fixed to magnetic circuit unit. In speaker, magnet or yoke and spring damping element form another vibration unit. This another vibration unit and the vibration unit that is composed of voice diaphragm, dome, and voice coil are subjected to interaction forces and vibrate in opposite directions, which reduces force on frame. The weight is added to magnetic circuit unit, which reduces the impact of air in rear cavity on magnet. Moreover, by adjusting mass of weight and stiffness and damping of spring damping element, corresponding resonant frequency and damping of magnetic circuit unit may be set, thereby achieving an optimal vibration isolation effect.
A loudspeaker (100), comprising a housing (4) and a sound emitting unit (10) fixed to the housing (4); the sound emitting unit (10) comprises: a basket frame (1); a vibration system (2); a magnetic circuit system (3); spring damping elements (5), the spring damping elements (5) elastically connecting the magnetic circuit system (3) to the basket frame (1) and supporting the magnetic circuit system (3) in vibrating within an accommodating space; and counterbalances (6), the counterbalances (6) being fixed on the side of a magnetic bowl (32) away from the vibration system (2). The loudspeaker (100) forms another vibration system with the spring damping elements (5) by means of a magnetic (31) or the magnetic bowl (32); this vibration system as well as the vibration system (2) composed of a voice diaphragm (22), a dome (21), and a voice coil (23) are subjected to mutual forces and generate opposing vibrations, and thereby forces on the basket frame (1) are reduced; the counterbalances (6) are added in the magnetic circuit system (3), which reduce the effect of air in a back volume (8) on the magnet (31); by means of adding a magnetic circuit through hole (34) in the magnetic circuit system (3) and optimizing the effect of air of the back volume (8) by means of a leakage hole (9) of the housing (4), a vibration reduction effect is further improved.
A loudspeaker (100), which relates to the field of electroacoustic conversion. The loudspeaker (100) comprises a housing (4) having an accommodating space and a sound emitting unit (10) accommodated within the accommodating space; the sound emitting unit (10) comprises a basket frame (1), a vibration system (2), a magnetic circuit system (3), and spring damping elements (5); the spring damping elements (5) elastically connect the magnetic circuit system (3) to the basket frame (1) and support the magnetic circuit system (3) vibrating within the accommodating space; counterbalances (6) are fixed to the magnetic circuit system (3); the loudspeaker (100) forms another vibration system (2) with the spring damping elements by means of a magnet or a magnetic bowl; this vibration system (2) as well as the vibration system (2) composed of a voice diaphragm (22), a dome (21), and the voice coil (23) are subjected to mutual forces and generate opposing vibrations, and thereby forces on the basket frame (1) are reduced; the counterbalances (6) are added in the magnetic circuit system (3), which reduce the effect of air in a back volume on the magnet, and a corresponding resonance frequency and damping of a magnetic circuit suspension system can be configured by means of adjusting the mass of the counterbalances (6) and the stiffness and damping of the spring damping elements (5), thereby achieving an optimal vibration isolation effect.
A speaker box and an electronic device are provided. The speaker box includes a housing, a speaker unit, and a sound-absorbing foam sheet. The housing includes an accommodating space. The speaker unit is accommodated in the accommodating space. The speaker unit is enclosed with the housing to define a rear cavity. The sound-absorbing foam sheet is adhered to an inner wall of the rear cavity. The sound-absorbing foam sheet includes a foam block and sound-absorbing powders adhered in the foam block. Through the sound-absorbing foam sheet, resonant frequency of the speaker box is effectively reduced, acoustic performance of the speaker box is improved, a structure of the speaker box is stable, and a preparation of the speaker box is simple.
H04R 1/28 - Transducer mountings or enclosures designed for specific frequency responseTransducer enclosures modified by provision of mechanical or acoustic impedances, e.g. resonator, damping means
C08J 9/42 - Impregnation with macromolecular compounds
15.
INTELLIGENT APPARATUS, METHOD, SYSTEM AND COMPUTER APPARATUS FOR REDUCING SOUND LEAKAGE
Disclosed in the present invention are an intelligent apparatus, a method, a system and a computer apparatus, which are used for reducing sound leakage. The intelligent apparatus comprises: a frame, which is provided with a first accommodating cavity, a second accommodating cavity, a sound output hole and a sound leakage hole; a main sound production device, which is fixed in the first accommodating cavity; an auxiliary sound production device, which is fixed in the second accommodating cavity; and a controller, which is mounted in the intelligent apparatus and is electrically connected to the main sound production device and the auxiliary sound production device respectively, and is configured to generate a control signal according to an electrical signal of the main sound production device, so as to trigger the auxiliary sound production device to produce sound, such that sound produced by the auxiliary sound production device and sound produced by the main sound production device are mutually superimposed, or sound produced by the auxiliary sound production device and leakage sound produced by the main sound production device create a dipole effect to mutually cancel each other out. By means of the intelligent apparatus of the present invention, the sound leakage can be further reduced, such that the privacy of the intelligent apparatus for reducing sound leakage is improved, and the effect of improving the sound quality can also be achieved.
H04R 9/02 - Transducers of moving-coil, moving-strip, or moving-wire type Details
H04R 1/40 - Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by combining a number of identical transducers
16.
SMART DEVICE FOR REDUCING SOUND LEAKAGE, METHOD, AND SYSTEM, AND COMPUTER DEVICE
A smart device for reducing sound leakage includes a frame, a main sound-generating device, an auxiliary sound-generating device, and a controller. The controller is configured to generate a control signal based on an electrical signal of the main sound-generating device to trigger the auxiliary sound-generating device to generate sound, so that the sound generated by the auxiliary sound-generating device and sound generated by the main sound-generating device through the sound outlet hole are superposed on each other, or the sound generated by the auxiliary sound-generating device and sound leakage generated by the main sound-generating device through the sound leakage hole form a dipole effect and counteract each other. The smart device according to the present disclosure can further reduce the sound leakage to improve privacy of the smart device for reducing sound leakage, which can also achieve an effect of improving sound quality.
A portable device, including a frame, a button fixed relative to the frame, a connection member fixedly connecting the button to the frame, a sensor for detecting a pressing state of the button, and a vibration motor fixed below the button. The frame has a mounting hole penetrating therethrough; the frame includes an outer side surface and an inner side surface opposite to the outer side surface; the button is mounted on the outer side surface; the mounting hole penetrates through the outer side surface and the inner side surface; the vibration motor is suspended in the mounting hole; and the connection member is of a hollow ring structure and is fitted and fixed to the edge of the button. When the button vibrates, the 10 vibration is not transferred to other areas of the portable device, thereby achieving better area vibration and more realistic experience for pressing the button.
H04M 1/02 - Constructional features of telephone sets
G08B 6/00 - Tactile signalling systems, e.g. personal calling systems
H02K 33/18 - Motors with reciprocating, oscillating or vibrating magnet, armature or coil system with coil systems moving upon intermittent or reversed energisation thereof by interaction with a fixed field system, e.g. permanent magnets
18.
Vibration feedback device, handheld communication device, and wearable device
A vibration feedback device, a handheld communication device including the same and a wearable device. The vibration feedback device is provided on a frame and includes a button fixed to the frame; a sensor for detecting a pressing state of the button; and a vibration motor fixed to the frame and arranged below the button. The frame includes an outer side surface, an inner side surface, and a mounting hole penetrating through the outer and inner side surfaces; the vibration motor includes a stator fixed to the inner side surface, an antenna arranged in the mounting hole, and an elastic connection member connecting the antenna to the stator; and a direction of a pressing force of the button is perpendicular to a vibrating direction of the antenna. The vibration feedback device provides a vibration feedback that is different from the direction of the pressing force and is diversified.
A linear vibration motor, including a housing having a receiving space; a vibration assembly and a stator assembly that are received in the receiving space; and an elastic member supporting the vibration assembly in the receiving space. The vibration assembly includes a weight suspended in the receiving space, and the weight has a receiving hole penetrating through the weight. The vibration assembly further includes an iron core fixed to the weight and received in the receiving hole, and a coil wound around the iron core; and the stator assembly includes a magnet fixed to the housing, and the magnet extends into the receiving hole and is spaced from the coil and the weight. The linear vibration motor has an improved electromagnetic field utilization rate of the iron core and the coil and enhanced magnetic field intensity of the magnet, and an improved driving force and vibration performance.
H02K 33/02 - Motors with reciprocating, oscillating or vibrating magnet, armature or coil system with armatures moved one way by energisation of a single coil system and returned by mechanical force, e.g. by springs
H02K 1/18 - Means for mounting or fastening magnetic stationary parts on to, or to, the stator structures
H02K 5/04 - Casings or enclosures characterised by the shape, form or construction thereof
H02K 33/18 - Motors with reciprocating, oscillating or vibrating magnet, armature or coil system with coil systems moving upon intermittent or reversed energisation thereof by interaction with a fixed field system, e.g. permanent magnets
20.
VIBRATION FEEDBACK DEVICE, HANDHELD COMMUNICATION DEVICE, AND WEARABLE DEVICE
A vibration feedback device (100). The vibration feedback device (100) is mounted on a frame (101); the vibration feedback device (100) comprises a button (1) fixed to the frame (101), a sensor (2) used for detecting a pressing state of the button (1), and a vibration motor (3) fixed to the frame (101) and located below the button (1); a mounting hole (1011) running through the frame (101) is formed in the frame (101); the frame (101) comprises an outer side surface (1012) and an inner side surface (1013) opposite to the outer side surface (1012); the mounting hole (1011) runs through the outer side surface (1012) and the inner side surface (1013); the vibration motor (3) comprises a stator (31) fixed to the inner side surface (1013) of the frame (101), a vibrator (32) located in the mounting hole (1011), and an elastic connecting member (33) connecting the vibrator (32) to the stator (31); and the pressing force direction of the button (1) is perpendicular to the vibration direction of the vibrator (32). The vibration feedback device (100) provides vibration feedback different from that in the pressing force direction, thereby realizing diversified vibration sense.
A portable device (100). The portable device (100) comprises a frame (1), a key (4) fixed relative to the frame (1), a connector (5) fixedly connecting the key (4) to the frame (1), a sensor (6) used for detecting the press state of the key (4), and a vibration motor (7) fixed below the key (4), wherein a mounting hole (11) runs through the frame (1); the frame (1) comprises an outer surface (12) and an inner surface (13) opposite the outer surface (12); the key (4) is mounted on the outer surface (12); the mounting hole (11) runs through the outer surface (12) and the inner surface (13); the vibration motor (7) is suspended in the mounting hole (11); and the connector (5) is of a hollow annular structure and is attached and fixed to the edge of the key (4). When the key (4) of the portable device (100) vibrates, the vibration is not transmitted to other regions of the portable device (100), thereby achieving good regional vibration and making the key-pressing experience more authentic.
A linear vibration motor (100), comprising a housing (10) having an accommodating space (11), a vibration assembly (20) and a stator assembly (30) which are accommodated in the accommodating space (11), and elastic members (40) supporting the vibration assembly (20) in the accommodating space (11); the vibration assembly (20) comprises a mass block (21) suspended in the accommodating space (11), the mass block (21) being provided with an accommodating hole (211) penetrating therethrough; the vibration assembly (20) further comprises an iron core (22) fixed to the mass block (21) and accommodated in the accommodating hole (211), and a coil (23) wound around the iron core (22); the stator assembly (30) comprises magnetic steel (31) fixed to the housing (10), the magnetic steel (31) extending into the accommodating hole (211) and being oppositely spaced apart from the coil (23) and the mass block (21). The linear vibration motor (100) has a high driving force and good vibration performance.
H02K 33/18 - Motors with reciprocating, oscillating or vibrating magnet, armature or coil system with coil systems moving upon intermittent or reversed energisation thereof by interaction with a fixed field system, e.g. permanent magnets
23.
SOUND ABSORPTION MATERIAL PACKAGING STRUCTURE, AND LOUDSPEAKER
The present application relates to the technical field of electroacoustic devices, and provides a sound absorption material packaging structure and a loudspeaker. The sound absorption material packaging structure of the present application comprises: a housing having at least one inner cavity, the housing being formed from foam packaging having a dispersed and intercommunicated multi-level pore channel structure, the pore channels having a diameter of 1μm-300μm, and the volume of the inner cavity occupying 50-90% of the volume of the housing; and sound absorption material particles filling the inner cavity, the sound absorption material particles having a particle size of 150μm-700μm. The invention improves the permeability of a rear cavity of a loudspeaker, avoids collision between sound absorption material and cavity walls, and improves the performance of the loudspeaker.
The present invention belongs to the technical field of resonators. Provided in the present invention is a piezoelectric resonator, comprising: a bottom electrode; a piezoelectric layer, which is arranged on one side of the bottom electrode; a top electrode, which is arranged on the side of the piezoelectric layer away from the bottom electrode; and an acoustic wave reflection structure, which is formed on the side of the bottom electrode away from the piezoelectric layer, wherein the top electrode, piezoelectric layer, bottom electrode and acoustic wave reflection structure overlap to jointly form a resonance area. The piezoelectric resonator is characterized by further comprising: an insertion layer, which is formed on the side of the top electrode away from the piezoelectric layer and/or the side of the bottom electrode away from the piezoelectric layer, the insertion layer at least partially covering the resonance area; and a mass load, which is formed on the side of the insertion layer away from the piezoelectric layer and is at least partially located in the resonance area. Compared with the prior art, the piezoelectric resonator of the present invention has a high performance, a lower degree of process difficulty, higher manufacturability and a higher yield.
The present application relates to a loudspeaker. The loudspeaker comprises a housing, and a diaphragm assembly, a magnetic circuit assembly, a frame and an elastic piece located inside the housing. The diaphragm assembly is used for vibration to produce sound; the magnetic circuit assembly is used for providing a magnetic field for the diaphragm assembly; the frame surrounds the diaphragm assembly and the magnetic circuit assembly; the frame and the diaphragm assembly are elastically connected; the elastic piece has elasticity, and is elastically connected to the magnetic circuit assembly and the frame; and the magnetic circuit assembly can move relative to the frame. The loudspeaker further comprises a cover plate, and a first damping body is provided between the cover plate and the magnetic circuit assembly and used for reducing noise generation.
The present application relates to a loudspeaker. The loudspeaker comprises a diaphragm assembly, a magnetic circuit assembly, and a basket; the diaphragm assembly is configured to vibrate to produce sound; the magnetic circuit assembly is configured to provide a magnetic field for the diaphragm assembly; the basket surrounds the diaphragm assembly and the magnetic circuit assembly; the basket and the diaphragm assembly are elastically connected. The loudspeaker provided in the present application further comprises an elastic piece and a damping assembly; the elastic piece has elasticity, and the elastic piece is elastically connected to the magnetic circuit assembly and the basket; the damping assembly is located between the magnetic circuit assembly and the basket, and the damping assembly comprises a damping sleeve and a damping adhesive; the damping sleeve is provided with a through hole, and the through hole runs through the damping sleeve in the thickness direction of the loudspeaker; the damping adhesive is located inside the through hole; the damping assembly is configured to achieve a vibration damping effect, thereby reducing noise generated by the loudspeaker.
Disclosed is a loudspeaker. The loudspeaker comprises a diaphragm component, a magnetic circuit component, and a basket. The diaphragm component is configured for generating vibration. The magnetic circuit component is configured for providing a magnetic field for the diaphragm component. The basket is arranged to surround the diaphragm component and the magnetic circuit component. The basket is elastically connected to the diaphragm component. The loudspeaker further comprises a housing and a cover plate. The diaphragm component, the magnetic circuit component, and the basket are arranged in the housing, and the cover plate is configured for closing the housing and comprises a supporting part and a damping part that are connected with each other. The damping part is made of a damping material. The supporting part is arranged to surround the damping part and is connected with a cover body. The damping part abuts against the magnetic circuit component, and the magnetic circuit component can move relative to the basket, thus reducing the noise generated when the loudspeaker works.
The present application relates to a loudspeaker. The loudspeaker comprises a diaphragm assembly, a magnetic circuit assembly, and a basket; the diaphragm assembly is configured to vibrate to produce sound, the magnetic circuit assembly is configured to provide a magnetic field for the diaphragm assembly; the basket surrounds the diaphragm assembly and the magnetic circuit assembly; the basket and the diaphragm assembly are elastically connected; an elastic piece has elasticity and comprises a first connecting part, a second connecting part, and a corrugated ring part connected to each other; the second connecting part is ring-like; the first connecting part is connected to the magnetic circuit assembly; the second connecting part is connected to the basket; the corrugated ring part is located between the first connecting part and the second connecting part; and a damping block is located between the elastic piece and the basket and is configured to reduce noise generated when the loudspeaker is operating.
The present application relates to a speaker. The speaker comprises a diaphragm assembly, a magnetic circuit assembly, a basket and a spring plate, that are located inside a housing. The diaphragm assembly is used to vibrate and create sound. The magnetic circuit assembly comprises a magnetic cup and magnetic steel, and is used to provide a magnetic field for the diaphragm assembly. The basket is elastically connected to the diaphragm assembly. The spring plate has elasticity, one part of the spring plate being located between the magnetic cup and the magnetic steel, the other part of the spring plate being connected to the basket, and is used to elastically connect the magnetic circuit assembly and the basket. A cover plate covers the housing, the cover plate comprising a first connection part, a second connection part and a folding ring part, the folding ring part having elasticity; the folding ring part is connected to the first connection part and the second connection part, the first connection part being located inside the folding ring part, the second connection part being located outside the folding ring part, the first connection part abutting against the housing, and the second connection part abutting against the magnetic circuit assembly, so as to achieve a vibration reduction effect and reduce noise generated when the speaker operates.
Disclosed in the present application is a loudspeaker, which comprises a basket having an accommodating space, and a vibration system and a magnetic circuit system which are arranged in the accommodating space, wherein the magnetic circuit system is configured to drive the vibration system to vibrate to produce sound; the vibration system comprises a vibrating diaphragm and a voice coil connected to the vibrating diaphragm; and the magnetic circuit system comprises a magnetic yoke and magnetic steel fixed to the magnetic yoke. The loudspeaker is further provided with an elastic supporting assembly for elastically fixing the magnetic circuit system to the basket; the elastic supporting assembly comprises an elastic supporting member and a damping member integrally injection-molded with the elastic supporting member; and the damping member is sandwiched between the basket and the elastic supporting member. The loudspeaker of the present application can reduce noise generated during the operation thereof.
Disclosed is a loudspeaker. The loudspeaker comprises a basin stand having an accommodating space, a vibration system arranged in the accommodating space and a magnetic circuit system having a magnetic gap and configured for driving the vibration system to vibrate and produce sound. The vibration system comprises a vibrating diaphragm fixed to the basin stand and a voice coil inserted into the magnetic gap and driving the vibrating diaphragm to vibrate and produce sound. The loudspeaker is further provided with an elastic supporting piece elastically fixing the magnetic circuit system to the basin stand, and the elastic supporting piece comprises an inner fixing part fixed to the magnetic circuit system, an outer fixing part fixed to the basin stand, and an elastic arm connecting the inner fixing part and the outer fixing part. The elastic supporting piece supports the magnetic circuit system to vibrate in the accommodating space, and when the vibration system is in operation, the vibration direction of the vibration system is opposite to that of the magnetic circuit system. The loudspeaker of the present invention can reduce noise during operation.
The present invention provides a loudspeaker, comprising a vibration system, a magnetic circuit system, and a basket. The vibration system comprises a diaphragm and a voice coil for driving the diaphragm to vibrate and produce sound. The diaphragm is fixed to the top of the basket. The magnetic circuit system comprises a bottom plate and a magnetic steel fixed to the bottom plate. The loudspeaker further comprises a pair of elastic connecting members fixed to the bottom of the basket and respectively arranged on two opposite sides of the magnetic circuit system, and the magnetic circuit system is elastically connected to the basket by means of the pair of elastic connecting members. Each elastic connecting member comprises a fixed part fixed to the bottom of the basket and elastic arms located below the bottom of the basket and respectively extending from two opposite ends of the fixed part along a side surface of the magnetic circuit system. The bottom plate comprises a main body part for fixing the magnetic steel and extension parts extending from the main body part to positions below the bottom of the basket. A tail end of each elastic arm is respectively fixed to the corresponding extension part. A damping block is sandwiched between each elastic arm and the bottom of the basket. According to the loudspeaker of the present invention, the noise problem during working can be resolved.
The present disclosure provides a piezoelectric resonator, including a bottom electrode, a piezoelectric layer formed on a side of the bottom electrode, a top electrode formed on a side of the piezoelectric layer away from the bottom electrode, an acoustic wave reflection structure formed on a side of bottom electrode away from piezoelectric layer, an insertion layer, and a mass load. The top electrode, piezoelectric layer, bottom electrode, and acoustic wave reflection structure form a resonant region. The insertion layer is formed on a side of top electrode away from piezoelectric layer and/or on the side of bottom electrode away from piezoelectric layer, and at least partially covers the resonant region. The mass load is formed on a side of the insertion layer away from piezoelectric layer, and is at least partially formed in the resonant region. The piezoelectric resonator has high performance, lower process difficulty, higher manufacturability and yield.
H03H 3/02 - Apparatus or processes specially adapted for the manufacture of impedance networks, resonating circuits, resonators for the manufacture of electromechanical resonators or networks for the manufacture of piezoelectric or electrostrictive resonators or networks
H03H 9/17 - Constructional features of resonators consisting of piezoelectric or electrostrictive material having a single resonator
Disclosed is a speaker. The speaker comprises a basket having an accommodating space, a vibration system disposed in the accommodating space, and a magnetic circuit system used to drive the vibration system to vibrate and produce sound. The magnetic circuit system comprises a magnetic yoke and magnetic steel fixed to the magnetic yoke, the magnetic yoke comprising a bottom wall fixed to the magnetic steel and a side wall extending from the bottom wall to the vibration system, the magnetic steel and the side wall forming a magnetic gap. The speaker is also provided with an elastic supporting piece elastically connecting the magnetic circuit system to the basket, the elastic supporting piece supporting the magnetic circuit system to vibrate in the accommodating space. The basket is located at an outer side of the side wall, and a damping piece is clamped between the side wall and the basket. The speaker of the present invention reduces noise during operation.
A coaxial speaker protection method, a coaxial speaker protection system, a coaxial speaker protection device, and a coaxial speaker protector are provided. The coaxial speaker protection method includes modeling a temperature of a tweeter to obtain a tweeter voltage-temperature transfer function, modeling a temperature and an amplitude of a woofer to obtain a woofer voltage-amplitude-temperature transfer function, modeling a coaxial device having the tweeter and the woofer to obtain a thermal conduction function of the coaxial device, calculating a current temperature of the tweeter according to a current voltage of the tweeter, calculating a current temperature of the woofer according to a current voltage of the woofer, etc. The tweeter and the woofer are protected through a feedforward manner, so that sound quality of a coaxial speaker is improved.
A Combo system, a method of driving the Combo system, a signal processor, and a storage medium are provided. The Combo system includes a loudspeaker, a motor, an analog divider, a power amplifier, a signal fuser, and a signal processor. The signal fuser fuses the loudspeaker digital signal with a digital signal of the motor to obtain a fused digital signal. The signal processor predicts voltage data loaded on two ends of the loudspeaker and two ends of the motor if the fused digital signal transmits to the analog frequency divider and the analog frequency divider performs the frequency division; and corrects the loudspeaker digital signal and/or the motor digital signal based on the predicted voltage data to enable the loudspeaker analog signal to be consistent with the loudspeaker digital signal and enable the motor analog signal to be consistent with the motor digital signal.
A speaker temperature protection method, a speaker temperature protection device, an electronic device, and a computer-readable storage medium are provided. The speaker temperature protection method includes creating a target transfer function based on a first measured temperature of the speaker and a first measured fusion voltage relative to the combination device, obtaining a first predicted temperature of the speaker based on the target transfer function, and determining a target gain according to the first predicted temperature of the speaker and a first fusion power relative to the combination device, and performing gain processing on an original audio signal input to the combination device based on the target gain, so as to provide temperature protection for the speaker. In this way, a temperature of the speaker is kept below a maximum allowable temperature and audio distortion is reduced
The present invention provides a resin composition, a polyimide preparation method and related products. The resin composition consists of the following components: polyimide which is a soluble product generated by a reaction of monomer groups containing aromatic tetracarboxylic dianhydride and diacid dihydrazide, a main chain of the polyimide containing a hydrazide structure; and a curing agent which comprises one or more of multifunctional epoxy resin, a primary amine compound with three or more functional groups, and polyisocyanate, wherein a mass ratio of the curing agent to the soluble polyimide is 0-20%. The resin composition in the present invention utilizes the hydrazide structure in the polyimide to prepare an adhesive with excellent heat resistance, adhesive performance, and solubility, overcoming the shortcomings of existing polyimide-based adhesives during processing or application.
A coaxial speaker tweeter temperature protection method, a coaxial speaker tweeter temperature protection system, and a computer-readable storage medium are provided. The coaxial speaker tweeter temperature protection method is applied to a coaxial speaker including a tweeter and a woofer, including steps of acquiring a woofer real-time temperature, performing calculation on the woofer real-time temperature and a pre-processed input signal through a tweeter temperature prediction algorithm to predict a tweeter real-time temperature in a current state, where the pre-processed input signal is a signal acquired after processing a sound effect algorithm on an input audio signal, etc. Compared with the related art, the coaxial speaker tweeter temperature protection method, the coaxial speaker tweeter temperature protection system, the electronic device, and the computer-readable storage medium provide better temperature protection for the tweeter, reliability of which is better.
H03F 3/20 - Power amplifiers, e.g. Class B amplifiers, Class C amplifiers
H03G 1/00 - Details of arrangements for controlling amplification
H04R 1/24 - Structural combinations of separate transducers or of parts of the same transducer and responsive respectively to two or more frequency ranges
A wearable device, comprising a housing (1), a feedback module (2) and a moving member (3). An accommodating cavity (11) and an opening (12) communicated with the accommodating cavity (11) are provided in the housing (1); the feedback module (2) is provided in the accommodating cavity (11); and the moving member (3) has one end connected to the feedback module (2), and the other end protruding from the surface of the housing (1) by means of the opening (12). The feedback module (2) comprises a loudspeaker (21) and a vibration assembly (22); the moving member (3) is connected to the vibration assembly (22), such that the moving member (3) vibrates along with the vibration assembly (22); and after a wearer wears the wearable device, the moving member (3) protrudes from one end of the housing (1) to be in contact with the skin of the wearer, such that the wearer can be reminded when the moving member (3) vibrates. The feedback module (2) is provided with the loudspeaker (21) and the vibration assembly (22), such that the wearer can be reminded by means of hearing and touch, thereby improving the use experience of the wearer.
Embodiments of the present invention provide a tweeter temperature protection method for a coaxial loudspeaker, and a related device. The coaxial loudspeaker comprises a tweeter and a woofer. The method comprises the following steps: obtaining a first real-time temperature of the woofer; performing predictive calculation on the first real-time temperature and a preprocessed input signal together by means of a tweeter temperature prediction algorithm to predict a second real-time temperature of the tweeter in a current state, wherein the preprocessed input signal is a signal obtained after an audio input signal is processed by means of an audio effect algorithm; and processing the second real-time temperature and the preprocessed input signal together by means of a tweeter temperature protection algorithm to determine whether the second real-time temperature of the tweeter is greater than a preset temperature threshold, and if yes, performing power suppression on the preprocessed input signal. Compared with the related art, the tweeter temperature protection method for the coaxial loudspeaker, and the related device provided by the present invention can better perform temperature protection on the tweeter, and thus have better reliability.
The present application provides a transducer protection system and protection method. The transducer protection system comprises, which are successively connected, a signal source, a protection module, a power amplification apparatus and a transducer module. The transducer module at least comprises one transducer; the signal source is used for generating a first signal; the protection module is used for predicting, according to the first signal, the amplification factor of the power amplification apparatus and built-in transducer parameters, the actual operating displacement and/or temperature of the transducer so as to generate a prediction result, comparing and analyzing the prediction result and preset values to generate an analysis result, and, according to the analysis result, adjusting the first signal to form a second signal; the power amplification apparatus is used for receiving the second signal, and performing power amplification on the second signal to form a driving signal; the transducer module is used for receiving the driving signal, and the at least one transducer in the transducer module can operate according to the driving signal, such that each transducer in the transducer module can run reliably during operation.
Provided in the present application are a coaxial speaker protection method, system, apparatus and device. The protection method of the present application comprises: performing temperature modeling on a tweeter unit, so as to acquire a voltage and temperature transfer function of the tweeter unit; performing temperature and amplitude modeling on a woofer unit, so as to acquire a voltage, amplitude and temperature transfer function of the woofer unit; modeling a coaxial device provided with the tweeter unit and the woofer unit, so as to acquire a heat transfer function of the coaxial device; according to the current voltage of the tweeter unit, calculating the current temperature of the tweeter unit; according to temperature information fed back by the current of the woofer unit at a previous moment, predicting the temperature of the woofer unit at the next moment, the tweeter unit and the woofer unit of the coaxial device being connected in series; and, according to the current temperature of the tweeter unit, the temperature of the woofer unit at the next moment, an original audio signal and a corresponding preset threshold, acquiring a target gain and, according to the target gain, processing the original audio signal. The present application can protect coaxial speakers.
The present application provides a button and an electronic device. The button comprises a housing and a motor; the motor is connected to the housing; the motor comprises a base and a magnetic circuit assembly; an accommodating space is formed in the base; at least part of the magnetic circuit assembly is accommodated in the accommodating space; the magnetic circuit assembly at least comprises a magnetically conductive cover plate, one voice coil and one iron core; the magnetically conductive cover plate is located on one side of the base; the magnetically conductive cover plate is fixedly connected to the housing, and movably connected to the base; the voice coil and the iron core are accommodated in the accommodating space and are fixedly connected to the base; the voice coil is sleeved on the iron core; a preset gap is formed between the iron core and the magnetically conductive cover plate in the thickness direction of the motor; the voice coil and the iron core are used for driving the magnetically conductive cover plate to drive the housing to move in the thickness direction of the motor. The button of the present application can implement a feedback function for users, making it convenient for users to confirm their operations, thereby improving the accuracy of user operations and further improving user experience.
H01H 13/85 - Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard characterised by ergonomic functions, e.g. for miniature keyboardsSwitches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard characterised by operational sensory functions, e.g. sound feedback characterised by tactile feedback features
G06F 3/01 - Input arrangements or combined input and output arrangements for interaction between user and computer
G06F 3/041 - Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
H02K 33/18 - Motors with reciprocating, oscillating or vibrating magnet, armature or coil system with coil systems moving upon intermittent or reversed energisation thereof by interaction with a fixed field system, e.g. permanent magnets
Provided in the present invention is a loudspeaker with an alarm function, the loudspeaker comprising a basket, a vibration system and a magnetic circuit system, wherein the vibration system comprises a vibrating diaphragm, a voice coil and a skeleton. The vibrating diaphragm comprises a first vibrating part, a first surround extending outwards from the outer periphery of the first vibrating part, an annular second vibrating part extending outwards from the outer periphery of the first surround, a second surround extending outwards from the outer periphery of the second vibrating part, a fixing part extending outwards from the outer periphery of the second surround, a first dome fixed to a lower surface of the first vibrating part, and a second dome fixed to a lower surface of the second vibrating part. The voice coil comprises a first voice coil and a second voice coil, the skeleton comprises a first skeleton which is connected to the first dome and the first voice coil and a second skeleton which is connected to the second dome and the second voice coil, and the magnetic circuit system is provided with a first magnetic gap of the first voice coil and a second magnetic gap of the second voice coil. The loudspeaker with an alarm function in the present invention has an alarm function and the acoustic performance of a conventional loudspeaker.
The present application provides a Combo system and a driving method thereof, a signal processor, and a storage medium. The Combo system comprises a loudspeaker, a motor, an analog frequency divider, a power amplifier, a signal fusion device, and a signal processor. The signal fusion device fuses a loudspeaker digital signal and a motor digital signal to obtain a fused digital signal; the signal processor predicts voltage data respectively loaded at two ends of the loudspeaker and at two ends of the motor after the fused digital signal is subjected to frequency division by means of the analog frequency divider, and corrects the loudspeaker digital signal and/or the motor digital signal in the fused digital signal according to the voltage data, wherein the correction enables a loudspeaker analog signal, obtained after the fused digital signal is subjected to the power amplifier and the analog frequency divider, to be consistent with the loudspeaker digital signal, and enables a motor analog signal, obtained after the fused digital signal is subjected to the power amplifier and the analog frequency divider, to be consistent with the motor digital signal. The present application can effectively ensure that a loudspeaker and a motor of a Combo device can both work according to the expectation.
Provided in the present application are a loudspeaker displacement protection method and apparatus, and a device and a storage medium. The method comprises: constructing a target transfer function on the basis of the actually measured amplitude of a loudspeaker and a fused voltage corresponding to a combined device; determining a target gain according to the target transfer function and a preset displacement threshold value; and on the basis of the target gain, performing gain processing on an original audio signal inputted into the combined device, so as to perform displacement protection on the loudspeaker. By means of implementing the solution of the present application, a transfer function is constructed according to an amplitude model of a loudspeaker and an amplitude model of a motor, and a target gain is determined according to the transfer function and a preset displacement threshold value so as to perform gain processing on an original audio signal inputted into a combined device, thereby improving the accuracy of loudspeaker displacement protection while reducing audio distortion.
The present application provides a Combo system and a driving method therefor. The Combo system comprises a loudspeaker, a motor, an analog frequency divider, a power amplifier, a signal fusion device, a nonlinear compensator, and a frequency division predictor. The nonlinear compensator performs predistortion processing on a loudspeaker digital signal to obtain a pre-distorted loudspeaker digital signal; the signal fusion device fuses the pre-distorted loudspeaker digital signal and a motor digital signal to obtain a fused digital signal; the frequency division predictor predicts voltage data loaded on both ends of the loudspeaker after the analog frequency divider performs frequency division on the fused digital signal; and the nonlinear compensator corrects the pre-distorted loudspeaker digital signal according to the voltage data, and the correction makes a loudspeaker analog signal obtained after the fused digital signal passes through the power amplifier and the analog frequency divider consistent with the pre-distorted loudspeaker digital signal. The present application can ensure that pre-distortion processing of the nonlinear compensator on the loudspeaker digital signal is effective.
The present utility model provides a sound production device. The sound production device comprises a frame, a vibration system, and a magnetic circuit system; the vibration system comprises a diaphragm fixed on the frame, and a voice coil for driving the diaphragm to vibrate to produce sound; the diaphragm comprises an annular first corrugated ring, a fixed part formed by extending from the outer periphery of the first corrugated ring to a direction close to the frame, an annular second corrugated ring arranged on the inner side of the first corrugated ring at an interval, an annular first vibration part for connecting the first corrugated ring and the second corrugated ring, a planar second vibration part formed by extending from the inner peripheral side of the second corrugated ring, and a framework fixed to the side of the first vibration part or the second vibration part close to the magnetic circuit system; the fixed part is fixed on the frame, and the voice coil is fixed on the side of the framework distant from the diaphragm; a magnetic gap is provided on the side of the magnetic circuit system close to the vibration system, and the voice coil is suspended in the magnetic gap by means of the framework. Compared with the related art, the sound production device of the present utility model facilitates the achievement of flat sound production and alarm functions, and has a good user experience effect.
The present disclosure provides a wearable device, including: a casing having an accommodating cavity and an opening communicating with the accommodating cavity, a feedback module arranged in the accommodating cavity, and a moveable part. One end of the moveable part is connected to the feedback module, and an other end protrudes from a surface of the casing via the opening. The feedback module includes a speaker and a vibration component, the moveable part is connected to the vibration component and vibrates with the vibration component. When a wearer wears the wearable device, the end of the moveable part protruding from the casing contacts with the wearer's skin. When the moveable part vibrates, the wearer can be warned. The feedback module provided by the present disclosure includes a speaker and a vibration component, which can warn the wearer by auditory and tactile senses, thereby improving user experience of the wearer.
The present invention provides a transducer protection system and method. A transducer module at least comprises a transducer, and a signal source is used for generating a first signal; a protection module is used for predicting an actual displacement and/or temperature of the transducer according to the first signal, an amplification factor of the power amplifier and built-in transducer parameters to generate a prediction result, comparing the prediction result with a preset value to generate an analysis result, and regulating the first signal to form a second signal according to the analysis result; a power amplifier is used for receiving the second signal, and performing power amplification on the second signal to form a driving signal; and the transducer module is used for receiving the driving signal, and at least one transducer in the transducer module can work according to the driving signal.
A button and electronic device, including shell and motor connected to the shell, the motor includes base and magnetic circuit, accommodating space is formed in the base, at least part of the magnetic circuit is accommodated in the accommodating space. The magnetic circuit at least includes magnetic conductive cover plate, voice coil and iron core, the magnetic conductive cover plate is fixedly connected to the shell and movably connected to the base. The voice coil and the iron core are accommodated in the accommodating space and are fixedly connected to the base, the voice coil is sleeved on the iron core, preset gap is formed between the iron core and the magnetic conductive cover plate. The voice coil and the iron core drive the magnetic conductive cover plate to drive the shell to move. The button can achieve feedback function to the user, thereby improving accuracy of user operation.
A coaxial speaker protection method, a coaxial speaker protection system, a coaxial speaker protection device, and a coaxial speaker protector are provided. The coaxial speaker protection method includes modeling a temperature of a tweeter to obtain a tweeter voltage-temperature transfer function, modeling a temperature and an amplitude of a woofer to obtain a woofer voltage-amplitude-temperature transfer function, modeling a coaxial device having the tweeter and the woofer to obtain a thermal conduction function of the coaxial device, predicting a temperature at a next moment of the tweeter according to temperature information fed back by a current at a previous moment of the tweeter, etc. The tweeter and the woofer are protected through a feedforward manner, so that sound quality of a coaxial speaker is improved.
G06F 30/20 - Design optimisation, verification or simulation
H04R 1/24 - Structural combinations of separate transducers or of parts of the same transducer and responsive respectively to two or more frequency ranges
H04R 3/02 - Circuits for transducers for preventing acoustic reaction
A coaxial speaker protection method, a coaxial speaker protection system, a coaxial speaker protection device, and a coaxial speaker protector are provided. The coaxial speaker protection method includes modeling a temperature of a tweeter to obtain a tweeter voltage-temperature transfer function, modeling a temperature and an amplitude of a woofer to obtain a woofer voltage-amplitude-temperature transfer function, modeling a coaxial device having the tweeter and the woofer to obtain a thermal conduction function of the coaxial device, calculating a current temperature of the tweeter according to a current voltage of the tweeter, predicting a temperature at a next moment of the woofer according to temperature information fed back by a current at a previous moment of the woofer, etc. A coaxial speaker is protected through the method.
H04R 9/02 - Transducers of moving-coil, moving-strip, or moving-wire type Details
H04R 1/24 - Structural combinations of separate transducers or of parts of the same transducer and responsive respectively to two or more frequency ranges
A Combo system and a method of driving the Combo system are provided. The Combo system includes a loudspeaker, a motor, an analog frequency divider, a power amplifier, a signal fuser, a nonlinear compensator, and a frequency-division predictor. The nonlinear compensator pre-distorts a digital signal of the loudspeaker to obtain a loudspeaker pre-distorted digital signal. The signal fuser fuses the loudspeaker pre-distorted digital signal with a digital signal of the motor to obtain a fused digital signal. The frequency-division predictor predicts voltage data loaded on two ends of the loudspeaker if the fused digital signal is transmitted to the analog frequency divider and divided by the analog frequency divider. The nonlinear compensator corrects the loudspeaker pre-distorted digital signal based on the voltage data to enable the loudspeaker analog signal to be consistent with the loudspeaker pre-distorted digital signal.
A speaker displacement protection method, a speaker displacement protection device, and a computer-readable storage medium are provided. The speaker displacement protection method includes creating a target transfer function based on a real-time amplitude of the speaker and a fusion voltage relative to the combination device, determining target gains according to the target transfer function and a predetermined displacement threshold, and performing gain processing on an original audio signal input to the combination device based on the target gains, so as to provide displacement protection for the speaker. As such, accuracy of the speaker displacement protection is improved while audio distortion is reduced.
Provided in the present invention are a coaxial loudspeaker protection method, protection system, protection apparatus and protection device. The coaxial loudspeaker protection method comprises: carrying out temperature modeling on a treble unit, so as to obtain a voltage and temperature transfer function of the treble unit; performing temperature and amplitude modeling on a bass unit, so as to obtain a voltage, amplitude and temperature transfer function of the bass unit; modeling coaxial devices having the treble unit and the bass unit, so as to obtain a heat transfer function between the coaxial devices; according to a current voltage of the treble unit, calculating a current temperature; according to a current voltage of the bass unit, calculating a current temperature, a treble unit protection and a bass unit protection of the coaxial devices being connected in series; and according to the current temperature of the treble unit, the current temperature of the bass unit, an original audio signal and a corresponding preset threshold, obtaining a target gain, and, according to the target gain, processing the original audio signal. The solution provided by the present invention protects in a feedforward mode treble units and bass units, thus improving sound production quality.
Provided in the present application are a protection method, protection system, protection apparatus and protection device for a coaxial loudspeaker. The protection method for a coaxial loudspeaker comprises: performing temperature modeling on a tweeter unit, and acquiring a voltage-temperature transfer function of the tweeter unit; performing temperature and amplitude modeling on a woofer unit, and acquiring a voltage-amplitude-temperature transfer function of the woofer unit; modeling a coaxial device which has the tweeter unit and the woofer unit, and acquiring a heat conduction function of the coaxial device; respectively predicting temperatures at the next moment according to temperature information fed back by currents of the tweeter unit and the woofer unit at the previous moment; and connecting in series tweeter unit protection and woofer unit protection of the coaxial device, acquiring a target gain according to the temperatures of the tweeter unit and the woofer unit at the next moment, an original audio signal and a corresponding preset threshold value, and processing the original audio signal according to the target gain. In the solution provided in the present invention, a coaxial loudspeaker is protected by means of feedback.
Provided in the present application are a loudspeaker temperature protection method and apparatus, a device and a storage medium. The method comprises: on the basis of a first actually measured loudspeaker temperature and a first actually measured fusion voltage corresponding to a combined device, constructing a target transfer function; according to a first predicted loudspeaker temperature obtained on the basis of the target transfer function and a first fusion power corresponding to the combined device, determining a target gain; and, on the basis of the target gain, performing gain processing on an original audio signal input into the combined device so as to perform temperature protection on the loudspeaker. The present application solution is implemented so as to construct the transfer function according to a heat transfer model of a motor and a loudspeaker, to calculate the predicted loudspeaker temperature by means of the transfer function, to obtain the target gain in combination with the fusion power, and to perform gain processing on the input audio signal on the basis of the target gain, thereby reducing audio distortion while keeping the temperature of the loudspeaker below the maximum allowable temperature.
An anti-collision device (100), comprising a connecting plate (1) used for being mounted on a driving motor, a mounting plate (2) used for being mounted on an end effector, a transition plate (3) and a buffer member (4). The mounting plate is mounted on the connecting plate and is slidably connected to the connecting plate; the transition plate is mounted on the connecting plate and forms a linear sliding connection with the connecting plate by means of a linear motion structure; the mounting plate is fixed to the side of the transition plate away from the connecting plate, so that the transition plate linearly reciprocates relative to the connecting plate in a first direction; and the buffer member is connected to the connecting plate and the transition plate, respectively, so that the transition plate can achieve anti-collision buffering for the driving motor when moving in the first direction. The anti-collision device can achieve anti-collision, shock absorption and buffering for the driving motor and has high position recovery accuracy.
F16F 15/02 - Suppression of vibrations of non-rotating, e.g. reciprocating, systemsSuppression of vibrations of rotating systems by use of members not moving with the rotating system
H02K 5/24 - CasingsEnclosuresSupports specially adapted for suppression or reduction of noise or vibrations
61.
RESIN COMPOSITION, POLYIMIDE PREPARATION METHOD, AND RELATED PRODUCT
The present invention provides a resin composition, a polyimide preparation method, and a related product. The resin composition is composed of the following components: polyimide, wherein the polyimide is a soluble product that is produced by a reaction of a monomer group containing aromatic tetracarboxylic dianhydride and diacid dihydrazide, and has a main chain containing a hydrazide structure; and a curing agent, wherein the curing agent is one or more of polyfunctional epoxy resin, a primary amine compound with three or more functional groups, and polyisocyanate, and the mass ratio of the curing agent to the soluble polyimide is 0% to 20%. The resin composition in the present invention can be compounded, by using the hydrazide structure in polyimide, to prepare an adhesive with excellent heat resistance, bonding performance and dissolution performance, so as to overcome the defects of existing polyimide adhesives in processing or application.
This application provides a system for generating a drive signal and a method for generating a drive signal for driving a two-in-one device integrating a first component capable of generating sound and a second component capable of generating vibration. The system includes an audio signal pre-processing module, configured to perform low-frequency filtering and acoustic effect processing on an input signal according to a high-pass filtering parameter to obtain an audio signal; a vibration signal generation module, configured to generate a vibration signal based on an acoustic characteristic of the audio signal or a preset vibration library; a signal synthesis module, configured to superpose the audio signal with the vibration signal to output the drive signal; and an amplitude-limiting control module, configured to determine whether the audio signal and the vibration signal exceeds a maximum allowable range when superposed, and attenuate the audio signal and/or the vibration signal.
A single power amplifier-driven signal control system for driving a two-in-one device integrating a first component capable of generating sound and a second component capable of generating vibration, where the two-in-one device includes a first input end and a second input end for introducing a signal respectively to the first component and the second component. The signal control system includes a signal control module, configured to determine an operating mode required for a current state based on an input signal, and generate an output signal for driving the two-in-one device based on the input signal and operating mode; a power amplifier, configured to amplify the output signal to obtain an amplified drive signal; and a front-end circuit module, configured to load the amplified drive signal to the first input end and/or the second input end to drive the first component and/or the second component to operate.
The present invention provides a system and a method for generating a drive signal for a two-in-one device. The drive signal is used for driving a first device generating sound and a second device generating vibration to be integrated into a two-in-one device of an integrated structure. A signal control system comprises: an audio signal pre-processing module, configured to perform low-frequency filtering and acoustic effect processing on a received input signal to obtain an audio signal; a vibration signal generation module, configured to generate a vibration signal according to an acoustic feature of the audio signal or a preset vibration material library; a signal synthesis module, configured to superpose the audio signal and the vibration signal and then output the drive signal; and a range limiting control module, configured to determine whether the audio signal and the vibration signal exceed a maximum allowable range when the audio signal and the vibration signal are superposed, and perform attenuation processing. Compared with the prior art, the system for generating the drive signal of the present invention can reduce connection requirements of a drive circuit and achieve the effect of using two components in the two-in-one device together or separately.
The present invention provides a single power amplifier-driven signal control system for driving a two-in-one device having an integrated structure formed by integrating a first device for generating sound and a second device for generating vibration. The two-in-one device comprises a first input end and a second input end. The signal control system comprises: a signal control module, used for determining, according to a received input signal, an operating mode required for a current state, and generating, according to the input signal and the operating mode, an output signal for driving the two-in-one device; a power amplifier, used for performing signal amplification on the output signal to obtain an amplified driving signal; and a front-end circuit module, used for loading the amplified driving signal to the first input end and/or the second input end so as to drive the first device and/or the second device to operate. Compared with the related art, the signal control module of the present invention can achieve simplification of a driving circuit, save the manufacturing costs of a terminal device, and improve space utilization in the terminal device.
Disclosed in the present invention are a composite heat-conducting sound-absorbing material and a preparation method therefor, and a loudspeaker. The composite heat-conducting sound-absorbing material comprises the following components in percentages by mass: 10-80% of activated-carbon cotton felt, 5-75% of zeolite particles, 1-80% of graphene particles and 5-40% of an adhesive, wherein the activated-carbon cotton felt serves as a framework, the graphene particles are adhered to the surface of activated carbon fibers of the activated-carbon cotton felt by means of the adhesive, and the zeolite particles are adhered to the surface of the graphene particles and the surface of the activated carbon fibers of the activated-carbon cotton felt by means of the adhesive. The composite heat-conducting sound-absorbing material of the present invention not only simultaneously has a good heat-conducting property and sound-absorbing property, but also has good mechanical strength.
D06N 3/00 - Artificial leather, oilcloth, or like material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
D06N 3/04 - Artificial leather, oilcloth, or like material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
D06N 3/14 - Artificial leather, oilcloth, or like material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds with polyurethanes
D06N 3/12 - Artificial leather, oilcloth, or like material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
H04R 31/00 - Apparatus or processes specially adapted for the manufacture of transducers or diaphragms therefor
The present disclosure provides a thermally-conductive and sound-absorbing composite material and a preparation method thereof and a speaker. The thermally-conductive and sound-absorbing composite material includes the following components by mass percent: 10-80% of an activated carbon felt, 5-75% of zeolite particles, 1-80% of graphene particles and 5-40% of an adhesive, where the activated carbon felt serves as a skeleton; the graphene particles are bonded to an activated carbon fiber surface of the activated carbon felt through the adhesive; and the zeolite particles are bonded to surfaces of the graphene particles and the activated carbon fiber surface of the activated carbon felt through the adhesive. The thermally-conductive and sound-absorbing composite material provided by the present disclosure has excellent heat conductivity, excellent sound absorption performance, and a desirable mechanical strength.
H04R 1/28 - Transducer mountings or enclosures designed for specific frequency responseTransducer enclosures modified by provision of mechanical or acoustic impedances, e.g. resonator, damping means
B29C 67/24 - Shaping techniques not covered by groups , or characterised by the choice of material
C08J 5/24 - Impregnating materials with prepolymers which can be polymerised in situ, e.g. manufacture of prepregs
The present invention provides a sound absorption sheet and a manufacturing method therefor, and a loudspeaker using the sound absorption sheet. The sound absorption sheet comprises a sheet body and an adhesive layer attached to one side of the sheet body; the sheet body is a slurry obtained by mixing sound absorption material powder, a binder, a thickening agent, a foaming agent, and a solvent, and is prepared by means of blade coating and freeze drying processes; the sheet body has a thickness of 0.05 mm to 2 mm, and has needle-shaped pores having a pore diameter of 1 μm to 100 μm; the adhesive layer is used for fixedly mounting the sound absorption sheet. Compared with the related art, the sound absorption sheet of the present invention has needle-shaped pores, so that it is ensured that the sheet has high sound absorption performance and low damping performance close to that of a particulate sound absorption material; in the sheet process, the sheet is designed to have different shapes and thicknesses, can be suitable for rear cavities of different loudspeakers, and has a wide range of application; the adhesive layer is adhered to the surface of the sheet, so that the aging risk of the structure in the loudspeaker caused by collision is reduced, and the strength of the sound absorption sheet is improved.
C09J 7/24 - PlasticsMetallised plastics based on macromolecular compounds obtained by reactions involving only carbon-to-carbon unsaturated bonds
C09J 7/25 - PlasticsMetallised plastics based on macromolecular compounds obtained otherwise than by reactions involving only carbon-to-carbon unsaturated bonds
C08J 9/06 - Working-up of macromolecular substances to porous or cellular articles or materialsAfter-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent
C08J 9/08 - Working-up of macromolecular substances to porous or cellular articles or materialsAfter-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent developing carbon dioxide
C08L 25/14 - Copolymers of styrene with unsaturated esters
A sound-absorbing material, a manufacturing method thereof and a speaker are provided. The sound-absorbing sheet includes a sheet body and a bonding layer. The sheet body is prepared by coating and freeze-drying a slurry, and the slurry is obtained by mixing sound-absorbing powder, a binder, a thickening agent and a foaming agent with a solvent. The sheet body has thickness of 0.05 mm-2 mm; the sheet body has needle-like pores with a pore size of 1 μm-100 μm. The bonding layer is configured to fixedly install the sound-absorbing sheet. By needle-like pores, the sound-absorbing sheet has high sound absorption performance, and low damping performance. The sheet can be designed into different shapes and thicknesses for rear cavities of different speakers, so the application range is wide. Because of bonding layer, while aging risk of a structure in the speaker is lowered, the sound-absorbing sheet has higher strength.
G10K 11/168 - Plural layers of different materials, e.g. sandwiches
C08J 9/00 - Working-up of macromolecular substances to porous or cellular articles or materialsAfter-treatment thereof
C08J 9/08 - Working-up of macromolecular substances to porous or cellular articles or materialsAfter-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent developing carbon dioxide
C08J 9/28 - Working-up of macromolecular substances to porous or cellular articles or materialsAfter-treatment thereof by elimination of a liquid phase from a macromolecular composition or article, e.g. drying of coagulum
The present invention provides a FBAR, which includes a substrate, an acoustic reflector, a first electrode, a piezoelectric layer, a second electrode, and an etch-stop layer. The acoustic reflector is arranged on the substrate, the first electrode is arranged on a side of the substrate and covers the acoustic reflector, and at least a part of the piezoelectric layer is arranged on a side of the first electrode away from the substrate. The second electrode is arranged on a side of the piezoelectric layer away from the first electrode, and the etch-stop layer is arranged on a side of the second electrode away from the piezoelectric layer. The FBAR further includes at least two stacked components. At least an edge of each of the at least two stacked components is misaligned. The quality factor of the FBAR in the present invention is relatively high.
A piezoelectric film bulk acoustic resonator includes a substrate, a bottom electrode located on one side of the substrate, a piezoelectric layer covering one side of the bottom electrode away from the substrate, a top electrode located on one side of the piezoelectric layer away from the bottom electrode, an etching insertion layer located on one side of the top electrode away from the piezoelectric layer, and a protruding frame located on one side of the etching insertion layer away from the top electrode. At least one of the etching insertion layer and the protruding frame is provided with an extending portion. By setting the extending portion, a first extreme point, a second extreme point and a third extreme point of the quality factor of the piezoelectric film bulk acoustic resonator are obviously larger than those of the related art.
A piezoelectric film bulk acoustic resonator, comprising: a base (1); a bottom electrode (2), which is located on one side of the base (1); a piezoelectric layer (3), which covers the side of the bottom electrode (2) that is away from the base (1); a top electrode (4), which is located on the side of the piezoelectric layer (3) that is away from the bottom electrode (2); an etching insertion layer (5), which is located on the side of the top electrode (4) that is away from the piezoelectric layer (3); and a protrusion frame (6), which is located on the side of the etching insertion layer (5) that is away from the top electrode (4), wherein at least one of the etching insertion layer (5) and the protrusion frame (6) is provided with an extension portion. By providing an extension portion, a first extreme point, a second extreme point and a third extreme point of a quality factor of the piezoelectric film bulk acoustic resonator are obviously increased compared with those in the prior art, and the increasing amplitude of the first extreme point is the largest. Since the extension portion does not cause an additional decrease in k2eff of the piezoelectric film bulk acoustic resonator, a relatively small width of a protrusion frame that corresponds to the first extreme point is selected, such that the high piezoelectric film bulk acoustic resonator simultaneously has a relatively high quality factor and relatively large k2eff.
The present application provides a thin film acoustic resonator. The thin film acoustic resonator comprises a substrate, an acoustic reflector, a first electrode, a piezoelectric layer, a second electrode, and an etching stop layer. The acoustic reflector is arranged on the substrate. The first electrode is arranged on one side of the substrate and covers the acoustic reflector. At least part of the piezoelectric layer is arranged on the side of the first electrode away from the substrate. The second electrode is arranged on the side of the piezoelectric layer away from the first electrode. The etching stop layer is arranged on the side of the second electrode away from the piezoelectric layer. The thin film acoustic resonator further comprises at least two stack assemblies, and the stack assemblies are arranged on the side of the etching stop layer away from the second electrode. The stack assemblies are of a frame-shaped structure, each stack assembly comprises a mass loading layer and an insertion layer which are sequentially stacked, and in the thickness direction perpendicular to the thin film acoustic resonator, the at least two stack assemblies each have at least one side edge arranged in a staggered mode. The thin film acoustic resonator of the present application has a high quality factor.
This application provides an ultra-low frequency sound compensation system and method based on haptic feedback, and a computer-readable storage medium. The ultra-low frequency sound compensation system includes a response module, configured to sense an ultra-low frequency sound compensation operation of a user, and output a control command while sensing the ultra-low frequency sound compensation operation; a processing module, configured to process an audio signal to be output under control of the control command to obtain an ultra-low frequency signal; and a vibration module, configured to be driven to by the ultra-low frequency signal to generate a vibration.
Provided in the present application are a tactile feedback-based ultra-low frequency sound effect compensation system and method, and a storage medium. The tactile feedback-based ultra-low frequency sound effect compensation system comprises: a response module used for sensing an ultra-low frequency sound effect compensation operation of a user and, upon sensing the ultra-low frequency sound effect compensation operation, outputting a control command; a processing module used for processing, under the control of the control command, an audio signal to be played, so as to obtain an ultra-low frequency signal from the audio signal; and a vibration module used for generating a corresponding vibration under the driving of the ultra-low frequency signal. The present application can create virtual ultra-low frequency enhancement effects with respect to the brain of users, overcoming the deficiency in traditional solutions of there being a serious lack of ultra-low frequency bands below 100Hz when users listen to music or watch videos on mobile phones, thereby greatly improving the audio-visual experience of the users.
Disclosed in the present application are a molecular sieve material for sound absorption and a preparation method therefor. The surface of the molecular sieve material has a pore channel structure formed by mesopores having a pore diameter of 10-50 nm, and the pore volume of the mesopores is 0.25 cm3/g or more. The molecular sieve material of the present invention can be obtained by etching and modifying raw molecular sieve powder with an inorganic alkaline solution; and since the alkaline solution can selectively remove part of silicon in a molecular sieve skeleton structure, more pore channel structures are generated in molecular sieve particles, thereby increasing the specific surface area, such that the gas adsorption capacity of the molecular sieve is enhanced. After a rear cavity of a loudspeaker is filled with the molecular sieve material of the present invention, the frequency reduction performance thereof can be significantly improved.
C01B 39/02 - Crystalline aluminosilicate zeolitesIsomorphous compounds thereofDirect preparation thereofPreparation thereof starting from a reaction mixture containing a crystalline zeolite of another type, or from preformed reactantsAfter-treatment thereof
77.
MULTI-FUNCTIONAL FEEDBACK DEVICE, HAPTIC FEEDBACK SYSTEM, AND AR/VR GLASS
A multi-functional feedback device, a haptic feedback system, and augmented reality (AR)/virtual reality (VR) glasses are provided. In the multi-functional feedback device, a vibration unit and a touch unit are assembled in a housing and share a magnetic circuit unit, which not only realizes transmission of a sound signal, but also realizes haptic feedback through a vibration signal, achieving a multi-functional feedback effect. Due to sharing a same magnetic circuit unit, costs can be saved, and an occupied space can be saved. The haptic feedback system includes the multi-functional feedback device. The vibration unit and the touch unit can be separate power amplifiers or a common power amplifier. In the AR/VR glasses, the haptic feedback system is assembled in a glasses frame, which can realize a reminder through vibration or sound on a head when used by a user, so as to meet diverse requirements.
The present invention provides a multifunctional feedback device, a haptic feedback system, and AR/VR glasses. According to the multifunctional feedback device of the present invention, a vibration system and a touch system are assembled in one housing and share a magnetic circuit system, so that transmission of sound signals is achieved, and haptic feedback can be achieved by means of vibration signals, thereby achieving a multifunctional feedback effect; moreover, one magnetic circuit system is shared, so that the cost can be saved, and the occupied space is saved. The haptic feedback system comprises the multifunctional feedback device, and the vibration system and the touch system can be independent power amplifiers or common power amplifiers. According to the AR/VR glasses, the haptic feedback system is assembled in a glasses frame, so that when a user uses the AR/VR glasses, reminding can be achieved by means of vibration or sound generated on the head, thereby meeting diversified requirements.
A molecular sieve material for sound absorption and a method for preparing the same are disclosed. There is a pore structure formed by mesopores with a pore size between 10 and 50 nm on a surface of the molecular sieve material, and the mesopores have a pore volume above 0.25 cm3/g. The molecular sieve material is obtained by etching and modifying a molecular sieve raw powder with an aqueous solution of an inorganic alkali. Since an alkali solution can selectively remove part of silicon elements in a skeleton structure of molecular sieve, more and more pore structures are generated in molecular sieve particles, which can increase the specific surface area and thus enhance the adsorption capacity of the molecular sieve for gases. The frequency reduction performance of the speaker can be significantly improved after the rear cavity of the speaker is filled with the molecular sieve material.
H04R 1/28 - Transducer mountings or enclosures designed for specific frequency responseTransducer enclosures modified by provision of mechanical or acoustic impedances, e.g. resonator, damping means
C01B 39/02 - Crystalline aluminosilicate zeolitesIsomorphous compounds thereofDirect preparation thereofPreparation thereof starting from a reaction mixture containing a crystalline zeolite of another type, or from preformed reactantsAfter-treatment thereof
The disclosure provides a direct drive motor, including: a primary assembly, the primary assembly including a slide, a coil assembly fixed to the slide, and two first end covers respectively fixed to the slide; and a secondary assembly, the secondary assembly including a base arranged opposite to the slide, a yoke fixed to the base, a magnet assembly fixed to the yoke, and two second end covers respectively fixed to two opposite circumferential sides of the base. The slide is slidably supported on the base. A side of each of the second end covers close to the yoke is provided with a mounting groove recessed in a direction away from the yoke, and two opposite ends of the yoke are respectively inserted and fixed in the mounting grooves of the two second end covers.
A copper paste for printing a capillary structure and a preparation method therefor. The copper paste is composed of a copper powder, a high-molecular polymer, a solvent, a binder, a dispersant, a leveling agent, a tackifier and an antioxidant, wherein the particle size of the copper powder is in the range of 0.5-10 μm, and the microsphere particle size of the high-molecular polymer is 1-50 μm. In the copper paste, by means of defining the copper powder and the high-molecular polymer, the prepared copper paste can be coated on a carrier of a vapor chamber by means of blade coating or silk-screen printing, and the copper paste is then used as a liquid absorption core after glue removal and sintering with hydrogen or a mixed gas of hydrogen and nitrogen, such that the investment of equipment is reduced, the cost is reduced, the thickness of the liquid absorption core can be accurately controlled to be 10-100 μm, the structural strength is higher, both the water absorption performance and the heat transfer performance are better, and requirements for miniaturization development of electronic products are satisfied.
The present application provides an audio signal enhancement method, apparatus, device and readable storage medium. Firstly, the first audio feature corresponding to the actual audio signal is obtained. Then, the first audio feature is inputted to a trained classifier for classification and identification, to obtain the audio-type representation data corresponding to the actual audio signal. Finally, a target audio signal conforming to a target audio type in the actual audio signal is enhanced with reference to the audio-type representation data, to obtain an enhanced audio signal. Through the implementation of the present application, the actual audio signal is classified and identified using the trained classifier, and the target audio signal conforming to the target audio type is enhanced, thereby effectively enhancing the target audio signal and improving the accuracy of enhancing the target audio signal.
This application provides a speaker control method and device, terminal equipment and a computer-readable storage medium. The method includes: obtaining a user perception-prohibited area corresponding to a target audio signal while detecting an audio output event, where the target audio signal is output in response to the audio output event; determining a first speaker based on the user perception-prohibited area, and determining a reverse cancelling sound wave corresponding to the target audio signal; generating a first control parameter based on a characteristic attribute of the reverse cancelling sound wave; and controlling the first speaker to output the reverse cancelling sound wave based on the first control parameter.
H04R 1/32 - Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only
G10K 11/178 - Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effectsMasking sound by electro-acoustically regenerating the original acoustic waves in anti-phase
H04R 3/12 - Circuits for transducers for distributing signals to two or more loudspeakers
84.
SOUND-FIELD CONTROL METHOD AND DEVICE, ELECTRONIC DEVICE AND COMPUTER-READABLE STORAGE MEDIUM
This application provides a sound-field control method and device, an electronic device and a computer-readable storage medium. The method includes: obtaining a target sound field parameter, calculating a control parameter of a sound-generating device according to the target sound field parameter, and controlling operation of the sound-generating device according to the control parameter.
A multifunctional sound generation device provided in the present utility model comprises a housing, a sound generation driver and a vibration assembly. The sound generation driver comprises a basket, a vibration system fixed to the basket, and a magnetic circuit system, which drives the vibration system to vibrate and generate sound in a first direction. The vibration assembly comprises a vibrator, which is suspended in the housing, a coil assembly, which is assembled in the vibrator and is arranged opposite the magnetic circuit system, and an elastic member for supporting the vibrator, wherein the vibrator is spaced apart from and surrounds an outer side of the magnetic circuit system; the coil assembly and the magnetic circuit system interact with each other to drive the vibrator to vibrate in a second direction, which is perpendicular to the first direction; and the coil assembly comprises an iron core, which is fixed to the vibrator, and a coil, which is wound around the iron core. The multifunctional sound generation device of the present utility model has a small thickness and low production costs.
Embodiments of the present application provide a multifunctional sound production device, comprising a housing, a sound production unit, and a motor assembly. The sound production unit comprises a frame, a vibration system, and a magnetic circuit system. The motor assembly comprises a vibration unit and elastic members. The vibration unit comprises driving coils and a mass block. The driving coils are fixed to the mass block and located within the magnetic field range of the magnetic circuit system. The mass block is made of a conductive material. After being electrified, the driving coils interact with the magnetic circuit system so that the vibration unit performs reciprocating vibration. The mass block cuts magnetic lines of force of the magnetic circuit system in the reciprocating vibration of the vibration unit and generates electromagnetic damping for preventing vibration of the vibration unit. Compared with the prior art, the multifunctional sound production device of the present application has a small overall thickness and a small volume, provides large electromagnetic damping for a magnetic circuit, is easy to assemble, and has excellent acoustic properties.
Provided in the present invention is a multi-directional vibration electric motor. The multi-directional vibration electric motor comprises a shell, a vibration unit and a coil unit, wherein the vibration unit comprises a cylindrical magnetic steel system, and the magnetic steel system is magnetized in a first direction parallel to the axial direction of the magnetic steel system; and the coil unit is located inside the shell and directly faces the magnetic steel system. The multi-directional vibration electric motor further comprises an annular peripheral magnetic ring, which is fixed to the shell, wherein the peripheral magnetic ring surrounds the coil unit and is spaced apart from the coil unit; the magnetic pole of the inner side of the peripheral magnetic ring is the same as the magnetic pole of the side of the magnetic steel system that is adjacent to the peripheral magnetic ring; the peripheral magnetic ring is composed of a plurality of pieces of magnetic steel, which are symmetrical in pairs; and the peripheral magnetic ring comprises two first magnetic ring members, which are respectively arranged on two opposite sides of the coil unit in a second direction, and two second magnetic ring members, which are respectively arranged on two opposite sides of the coil unit in a third direction, both the second direction and the third direction being distributed in the same plane and being perpendicular to the first direction. Compared with the related art, the multi-directional vibration electric motor of the present invention can realize multi-directional vibrations and is of a small size.
H02K 33/00 - Motors with reciprocating, oscillating or vibrating magnet, armature or coil system
H02K 7/12 - Structural association with clutches, brakes, gears, pulleys or mechanical starters with auxiliary limited movement of stators, rotors or core parts, e.g. rotors axially movable for the purpose of clutching or braking
Provided in the present invention is a multifunctional sound production device, comprising a housing, a sound production unit and a motor assembly, wherein the sound production unit comprises a basket, a vibration system, a magnetic circuit system and a first elastic member; the vibration system comprises a diaphragm and a voice coil, the voice coil driving the diaphragm to vibrate in a first direction and produce sound; one end of the first elastic member is fixed to the basket, and the other end of the first elastic member is elastically connected to the magnetic circuit system; the voice coil drives the magnetic circuit system to vibrate in the first direction, so as to drive the sound production unit to vibrate in the first direction; the magnetic circuit system is provided with a clearance slot, and the motor assembly comprises a stator unit and a second elastic member which are accommodated in the clearance slot; and the stator unit is fixed to the housing, and the stator unit is spaced apart from the magnetic circuit system and drives the magnetic circuit system to vibrate, so as to drive the sound production unit to vibrate in a second direction, the first direction and the second direction being perpendicular to each other. Compared with related techniques, the multifunctional sound production device of the present invention can achieve a vibration function in two directions, and has a small size and excellent acoustic and vibration performance.
The present application provides an audio signal enhancement method and apparatus, and a device and a readable storage medium. The method comprises: first, obtaining first audio features corresponding to actual audio signals; then inputting the first audio features into a trained classifier for classification and identification, so as to obtain audio type representation data corresponding to the actual audio signals; and finally, on the basis of the audio type representation data, performing enhancement processing on a target audio signal conforming to a target audio type among the actual audio signals, so as to obtain an enhanced audio signal. By means of implementation of the solution of the present application, the trained classifier is used to classify and identify the actual audio signals, and the target audio signal conforming to the target audio type is enhanced, thereby effectively enhancing the target audio signal, and improving the accuracy of enhancing the target audio signal.
Provided in the present utility model is a direct drive motor. The direct drive motor comprises: a primary assembly comprising a sliding seat, a coil assembly fixed to the sliding seat, and two first end covers respectively fixed to the sliding seat; and a secondary assembly comprising a base opposite to the sliding seat, a magnetic yoke fixed to the base, a magnetic steel assembly fixed to the magnetic yoke, and two second end covers respectively fixed to two opposite peripheral sides of the base, wherein the sliding seat is slidably supported on the base, mounting grooves recessed in a direction away from the magnetic yoke are provided on the sides of the second end covers close to the magnetic yoke, and two opposite sides of the magnetic yoke are respectively inserted and fixed in the mounting grooves of the two second end covers. In the direct drive motor provided in the present utility model, the distance between the two second end covers can be smaller, so that the structural size of the direct drive motor is more compact, and thus the direct drive motor satisfies a space-limited application scenario.
The present invention provides an integrated loudspeaker and a mobile terminal. The integrated loudspeaker comprises a housing, a heat dissipation assembly, and a sound production assembly; the sound production assembly comprises a sound production unit and a cover plate; a rear cavity is formed between the cover plate and the sound production unit; a front cavity is formed between the sound production unit and the housing; a sound outlet hole communicated with the front cavity is formed in the housing; the housing is provided with a partition plate; a first through hole and a second through hole are formed in the housing; and the heat dissipation assembly is used for driving air. The heat dissipation assembly is used for dissipating heat of a mobile terminal; the sound production assembly is used for improving the sound performance of the mobile terminal; the heat dissipation assembly drives air to bring out heat generated by the mobile terminal; the sound of the sound production assembly is emitted by the sound outlet hole; the rear cavity and the front cavity are used for improving the audio experience effect of the mobile terminal; the housing plays a role in protecting the heat dissipation assembly and the sound production assembly; and the heat dissipation assembly and the sound production assembly share one housing, such that the overall structure of the loudspeaker is simplified.
Provided in the present application are a speaker control method and apparatus, and a device and a readable storage medium. The method comprises: when an audio output event is detected, acquiring a user perception prohibited region corresponding to a target audio signal; determining a corresponding first speaker according to the user perception prohibited region, and determining a reverse cancellation sound wave corresponding to the target audio signal; generating a corresponding first control parameter on the basis of feature attributes of the reverse cancellation sound wave; and controlling the first speaker to output the reverse cancellation sound wave according to the first control parameter. By means of the implementation of the present application, a user perception prohibited region corresponding to an audio signal required to be outputted by a device is determined, and a speaker in a corresponding orientation of a terminal is then controlled to output a reverse cancellation sound wave, so as to perform sound field cancellation on the user perception prohibited region, thereby improving the directivity of an audio output from the terminal, and avoiding leaking privacy information of a terminal user to unrelated users or causing sound interference.
H04M 1/19 - Arrangements of transmitters, receivers, or complete sets to prevent eavesdropping, to attenuate local noise or to prevent undesired transmissionMouthpieces or receivers specially adapted therefor
H04M 1/72454 - User interfaces specially adapted for cordless or mobile telephones with means for adapting the functionality of the device according to specific conditions according to context-related or environment-related conditions
Provided in the present application are a sound field control method and apparatus, a device and a readable storage medium. The method comprises: acquiring a target sound field parameter; according to the target sound field parameter, calculating a control parameter of a sound production apparatus; and, according to the control parameter, controlling the sound production apparatus to work. Implementing the solution of the present application sets a reasonable target sound field parameter, and on the basis of the target sound field parameter, controls sound production units in a sound production apparatus to work cooperatively so as to achieve control-by-zone of the sound field, thus allowing the sound emitted by the sound production apparatus to form a required sound field in each target area, and satisfying audio signal receiving requirements of a plurality of target users in different areas.
A multifunctional sound device includes a housing, a sound unit, and a motor assembly. The sound unit includes a frame, a vibration system, a magnetic circuit system, and a first elastic component. The vibration system includes a vibrating diaphragm and a a voice coil. The voice coil drives the vibrating diaphragm to vibrate and generate sound along a first direction. A first end of the first elastic component is fixed to the frame. A second end of the first elastic component is elastically connected to the magnetic circuit system. The voice coil drives the magnetic circuit system to vibrate along the first direction. A mounting groove is defined on the magnetic circuit system. The motor assembly includes a stator and second elastic components. The stator is fixed to the housing. The stator is spaced apart from the magnetic circuit system and drives the magnetic circuit system to vibrate.
The multifunctional sounding device provided by the present disclosure includes a housing body, a sounding unit and a vibration assembly. The sounding unit includes a frame, a vibration system fixed on the frame, and a magnetic circuit system that drives the vibration system to vibrate and produce sound in a first direction. The vibrator surrounds the outside of the magnetic circuit system with space. The coil assembly interacts with the magnetic circuit system to drive the vibrator to vibrate in a second direction perpendicular to the first direction. The coil assembly includes an iron core fixed to the vibrator and a coil wrapped around the iron core. The multifunctional sounding device of the present disclosure has a small thickness and low production cost.
The present invention discloses a copper paste for printing a capillary structure and a preparation method thereof. The copper paste consists of copper powder, a high molecular polymer, a solvent, a binder, a dispersant, a leveling agent, a tackifier and an antioxidant. Through the limitation on the copper powder and the high molecular polymer in the copper paste of the present invention, the prepared copper paste can be applied to a carrier of a vapor chamber by blade coating or screen printing, and then used as a wick after binder removal and sintering in hydrogen or hydrogen-nitrogen mixed gas, so as to reduce device investment and cost; and the thickness of the wick can be accurately controlled to be 10-100 μm, the structural strength is higher, the water absorption performance and the heat transfer performance are better, and the demand for miniaturization of electronic products is met.
B22F 1/10 - Metallic powder containing lubricating or binding agentsMetallic powder containing organic material
B22F 1/052 - Metallic powder characterised by the size or surface area of the particles characterised by a mixture of particles of different sizes or by the particle size distribution
The present application provides an integrated speaker and a mobile terminal. The integrated speaker includes a housing, a heat dissipation assembly configured to drive air and dissipate heat from the mobile terminal, and a sounding assembly configured to improve the sound performance of the mobile terminal, including a sounding driver and a cover plate. A rear cavity is formed between the cover plate and the sounding driver, and a front cavity is formed between the sounding driver and the housing. The housing is provided with a sound outlet hole connected to the front cavity, a partition plate a first and second through-holes. The sound of the sounding assembly is emitted from the sound outlet hole. The rear and front cavities are configured to improve the audio experience effect of the mobile terminal, and the housing plays the role of protecting the heat dissipation assembly and the sounding assembly.
H04R 1/28 - Transducer mountings or enclosures designed for specific frequency responseTransducer enclosures modified by provision of mechanical or acoustic impedances, e.g. resonator, damping means
A multi-directional vibration motor, including a housing, a vibration unit, a coil unit, and a peripheral magnetic ring. The vibration unit includes a magnet unit in a cylinder shape and magnetized along a first direction. The coil unit is opposite to the magnet unit. The peripheral magnetic ring surrounds and is spaced apart from the coil unit. A magnetic pole at an inner side of the peripheral magnetic ring is the same as a magnetic pole at a side of the magnet unit adjacent thereto. The peripheral magnetic ring is formed by magnets that are symmetrical in pairs. The peripheral magnetic ring includes two first magnetic rings at two opposite sides of the coil unit along a second direction and two second magnetic rings at two opposite sides of the coil unit along a third direction. The motor realizes multi-directional vibration and has a small size.
H02K 33/18 - Motors with reciprocating, oscillating or vibrating magnet, armature or coil system with coil systems moving upon intermittent or reversed energisation thereof by interaction with a fixed field system, e.g. permanent magnets
H02K 33/12 - Motors with reciprocating, oscillating or vibrating magnet, armature or coil system with armatures moving in alternate directions by alternate energisation of two coil systems
A multifunctional sound device includes a housing, a sound unit, and a motor assembly. The sound unit includes a frame, a vibration system, and a magnetic circuit system. The motor assembly includes a vibration unit and elastic components. The vibration unit includes driving coils and a mass block. The driving coils are fixed to the mass block and located in a magnetic field range of the magnetic circuit system. The mass block is made of conductive materials. The driving coils interact with the magnetic circuit system to enable the vibration unit to vibrate in a reciprocating mode after the driving coils are energized. Compared with related art, the multifunctional sound device is small in overall thickness and size, large in electromagnetic damping of a magnetic circuit, easy to assemble, and excellent in acoustic performance.
H04R 1/28 - Transducer mountings or enclosures designed for specific frequency responseTransducer enclosures modified by provision of mechanical or acoustic impedances, e.g. resonator, damping means
H04R 9/02 - Transducers of moving-coil, moving-strip, or moving-wire type Details
H04R 9/04 - Construction, mounting, or centering of coil
100.
DIRECT-DRIVE TRANSMISSION SYSTEM AND CONTROL METHOD
Provided in the present invention are a direct-drive transmission system and a control method. The direct-drive transmission system comprises a substrate, a guide rail, a plurality of stators, a rotor, a first position feedback apparatus, a plurality of second position feedback apparatuses, a plurality of drivers and a controller, wherein the first position feedback apparatus and the second position feedback apparatuses are correspondingly arranged; each stator is used for driving the rotor to slide on the guide rail; the plurality of second position feedback apparatuses are distributed at intervals, and the second position feedback apparatuses are electrically connected to the controller; and the controller is used for controlling the driving action of each driver according to received effective position information fed back by the second position feedback apparatuses. Second position feedback apparatuses are configured to be electrically connected to a controller, and thus the controller directly receives effective position information fed back by the second position feedback apparatuses, such that the latest effective position information can be received, and the response efficiency of the controller for the position is improved, thereby improving the control efficiency of the direct-drive transmission system; and the requirements for the performance of a driver can also be reduced.
patents
