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36results about How to "Increase sound loudness" patented technology
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Intelligent head-mounted device
ActiveCN110830867AHigh sensitivityImprove leakage reduction effectNon-optical adjunctsFrequency/directions obtaining arrangementsEar AuricleSound production
The invention discloses an intelligent head-mounted device, and the device comprises a lens and a leg part, the lens is connected with the leg part, and the leg part is internally provided with a cavity; the sound production device is arranged in the cavity, and the cavity is divided into a front sound cavity and a rear sound cavity by the sound production device; the sound outlet hole is formed in the leg part and is communicated with the front sound cavity; the main sound leakage hole and the auxiliary sound leakage hole are formed in the leg part, and the main sound leakage hole and the auxiliary sound leakage hole are communicated with the rear sound cavity; the positions of the sound outlet hole, the main sound leakage hole and the auxiliary sound leakage hole are configured as follows: when a wearer wears the intelligent head-mounted device, the sound outlet hole and the auxiliary sound leakage hole are located at the front side of the auricle of the wearer, and the main sound leakage hole is located at the rear side of the auricle of the wearer.
Owner:GOERTEK INC
Preparation method of vibration sounding screen assembly
ActiveCN110049412AImprove consistencyGuaranteed design accuracyElectrical transducersComputer engineeringGasket
The invention provides a preparation method of a vibration sounding screen assembly, and the method comprises the following steps: providing a sounding driving assembly and a gap limiting gasket, thesounding driving assembly comprising a support with an inner surface, a first oscillator, and a second oscillator; providing a display screen and a middle frame, wherein the display screen comprises afront surface used for displaying images and an opposite rear surface, the middle frame is supported on the rear surface of the display screen, and a mounting hole is formed in the middle frame; fixing the support provided with the gap limiting gasket to the middle frame, and allowing the second vibrator to penetrate through the mounting hole and to be fixed to the rear surface of the display screen; and removing the gap limiting gasket, so that the distance between the first oscillator and the second oscillator is kept within a preset distance range.
Owner:HUAWEI TECH CO LTD
Electronic terminal
PendingCN108924715AIncrease sound loudnessImprove vocal reliabilityElectrical transducersLoudspeakersLoudnessEngineering
The invention discloses an electronic terminal comprising a shell provided with at least two sound outlets; at least two sound emission devices arranged in the shell, wherein each sound emission device is arranged to be corresponding to one sound outlet; and a sound guiding tube structure communicating the corresponding sound emission device and sound outlet. According to the technical scheme provided by the invention, the sound loudness of the electronic terminal can be improved.
Owner:GOERTEK INC
Portable respiratory function detection device with learning function
ActiveCN106901742AEasy to carryIncrease sound loudnessDiagnostic recording/measuringSensorsDiseaseRespiratory flow
The invention discloses a portable respiratory function detection device with a learning function. The portable respiratory function detection device comprises a rigid breathing tube and a handle, wherein one end of the rigid breathing tube is connected with an interface unit and a valve is arranged at the other end; the handle is fixedly connected with a valve end of the rigid breathing tube; a control unit is arranged in the handle; a display screen for displaying a respiratory function and a pressure result connected with the control unit and a loudspeaker are embedded into a shell of the handle separately; a flow sensor electrically connected with the control unit, a pressure sensor and a carbon dioxide detector are arranged in the rigid breathing tube separately; and the control unit controls the opening and closing of the valve. The loudspeaker is controlled through respiratory flow, the larger the airflow is, the higher the sound is, and a subject quickly grasps main points of respiratory function detection with the help of auditory feedback, so that the lung function can be detected and whether the lung function damage is caused by an abnormal respiratory muscle function or an abnormal lung or a thorax disease can be identified when the lung function declines.
Owner:广州锐士伯医疗科技有限公司
Percussion-style low-frequency underwater acoustic transducer driven by marine current energy
InactiveCN103236256AReduce lossesReduce frictionSound producing devicesAcoustic energyReciprocating motion
The invention provides a percussion-style low-frequency underwater acoustic transducer driven by marine current energy. The percussion-style low-frequency underwater acoustic transducer comprises a main cylindrical permanent magnet, an auxiliary cylindrical permanent magnet, a cylinder, a percussion member, an acoustic shell, an acoustic tube and the like. The principle of homopolar repulsion and heteropolar attraction between the main cylindrical permanent magnet and the auxiliary cylindrical permanent magnet is adopted; by continually changing magnetic poles of the main cylindrical permanent magnet in the cylinder, the auxiliary cylindrical permanent magnet outside the cylinder is controlled to reciprocate, and a percussion head is driven by the auxiliary cylindrical permanent magnet to periodically percuss the panels of the acoustic tube and the acoustic shell to make sound; and the acoustic signals are high in loudness and wide in frequency band which is in the lower band range. Marine current energy can be directly used for continuously generating acoustic energy required by underwater detection; and the percussion-style low-frequency underwater acoustic transducer is novel in principle, easy to manufacture, compact in structure, reliable in sealing, high in energy utilization rate and long in service life.
Owner:CSSC SYST ENG RES INST +1
Sound production device
ActiveCN111405425AIncrease sound loudnessSmall sizeNon-planar diaphragms/conesEngineeringSound production
The invention provides a sound production device. The sound production device comprises a basin stand, a vibration system and a magnetic circuit system. The vibration system comprises an annular uppervibrating diaphragm, an annular lower vibrating diaphragm, an annular voice coil, an annular upper framework, an annular lower framework and an annular isolation vibrating diaphragm. The upper vibrating diaphragm is fixed to the basin frame and defines a containing space together with the basin frame, the side, away from the containing space, of the upper vibrating diaphragm communicates with theoutside and serves as an upper front cavity for the upper vibrating diaphragm to produce sound, and the upper vibrating diaphragm is arranged around the magnetic circuit system at intervals. The lower vibrating diaphragms are arranged around the magnetic circuit system at intervals, and the peripheral sides of the lower vibrating diaphragms are fixed on the basin stand. The upper framework is respectively connected with the upper vibrating diaphragm and the voice coil. The lower framework is respectively connected with the lower vibrating diaphragm and the voice coil. The outer peripheral side of the isolation diaphragm is connected with the basin stand body, the inner peripheral side of the isolation diaphragm is connected with the lower skeleton, and the lower diaphragm, the lower skeleton, the isolation diaphragm and the basin stand jointly divide the accommodation space into a lower front cavity used for sounding of the lower diaphragm and a rear cavity used for sharing of the upper diaphragm and the lower diaphragm. Compared with the prior art, the sound production device is higher in acoustic loudness and better in acoustic performance.
Owner:AAC TECH PTE LTD
Sound production device
ActiveCN111405426AIncrease sound loudnessSmall sizeNon-planar diaphragms/conesEngineeringSound production
The invention provides a sound production device, which comprises a basin frame, a vibration system and a magnetic circuit system. The vibration system comprises an upper vibrating diaphragm, the upper vibrating diaphragm being fixed on the basin frame and defines an accommodating space together with the basin frame, and one side, far away from the magnetic circuit system, of the upper vibrating diaphragm being communicated with the outside and serving as an upper front cavity for the upper vibrating diaphragm to produce sound; an annular lower vibrating diaphragm, wherein the outer peripheralside of the lower vibrating diaphragm is fixed on the basin frame; an upper framework, connected with the voice coil and the upper vibrating diaphragm, and the lower framework being connected with the lower vibrating diaphragm. The outer peripheral side of the isolation vibrating diaphragm is connected with the basin frame, the inner peripheral side of the isolation vibrating diaphragm is connected with the upper framework and the lower framework, and the lower vibrating diaphragm, the lower framework, the isolation vibrating diaphragm and the basin stand jointly divide the accommodating space into a lower front cavity used for sounding of the lower vibrating diaphragm and a rear cavity used for sharing of the lower vibrating diaphragm and the upper vibrating diaphragm. The basin frame isprovided with a sounding hole which enables the lower front cavity to be communicated with the outside. Compared with the prior art, the sound production device is higher in acoustic loudness and better in acoustic performance.
Owner:AAC TECH PTE LTD
Sound production device
InactiveCN111405428AIncrease sound loudnessSmall sizeNon-planar diaphragms/conesEngineeringSound production
The invention provides a sound production device, which comprises a basin frame, a vibration system and a magnetic circuit system. The vibration system comprises an upper vibrating diaphragm, the upper vibrating diaphragm being fixed on the basin frame and defines an accommodating space together with the basin frame, and one side, far away from the magnetic circuit system, of the upper vibrating diaphragm being communicated with the outside and serving as an upper front cavity for the upper vibrating diaphragm to produce sound; an annular lower vibrating diaphragm, wherein the outer peripheralside of the lower vibrating diaphragm is fixed on the frame; an upper framework connected with the voice coil and the upper vibrating diaphragm, and a lower framework connected with the lower vibrating diaphragm; and an isolation diaphragm, the outer peripheral side of the isolation diaphragm being connected with the basin stand, and the inner peripheral side of the isolation diaphragm being connected with the upper framework and the lower framework. Compared with the prior art, the sound production device is higher in acoustic loudness and better in acoustic performance.
Owner:AAC TECH PTE LTD
A mobile terminal capable of realizing stereo
ActiveCN109040384AThe sound output area is reducedEnhance stereo listening experienceSubstation speech amplifiersTwo-channel systemsEngineeringSecond sound
The invention discloses a mobile terminal capable of realizing stereo, which comprises a first sound emitting element, a second sound emitting element, a third sound emitting element, a first power amplifier driving circuit, a second power amplifier driving circuit and an audio controller. The first sound emitting element and the second sound emitting element are connected in parallel with a firstpower amplifier driving circuit, and the third sound emitting element is connected with a second power amplifier driving circuit. The first sound emitting element and the second sound emitting element are disposed at the upper end of the mobile terminal in the longitudinal direction, and the third sound emitting element is disposed at the lower end in the longitudinal direction. The audio controller is configured to cause the first sound emitting element and the second sound emitting element to output a stereo left channel signal and to cause the third sound emitting element to output a rightchannel signal. According to the technical proposal of the invention, the stereo effect of the mobile terminal can be realized, so that the user can feel the stereo effect without the aid of stereo headphones or stereo and other auxiliary equipment every time, and the user experience can be improved.
Owner:ONEPLUS TECH SHENZHEN
Sound production device and electronic equipment
ActiveCN114554367AReduce thicknessAvoid cascading settingsElectrical transducersEngineeringSound production
The invention discloses a sound production device and electronic equipment, and the sound production device comprises a housing, a first vibration system, a second vibration system, and a magnetic circuit system. The first vibration system comprises a first diaphragm and two first voice coils. The second vibration system comprises a second vibrating diaphragm and two second voice coils. The magnetic circuit system comprises two first center magnets, two second center magnets, a first yoke plate for connecting the second center magnets, and a second yoke plate for connecting the first center magnets. The two first center magnets and the two second center magnets are sequentially and alternately arranged in the circumferential direction. A first magnetic gap into which the first voice coil extends is formed on the peripheral side of the first central magnet. And a second magnetic gap into which the second voice coil extends is formed on the peripheral side of the second central magnet. The first center magnet and the second center magnet are arranged between the first yoke plate and the second yoke plate in a tiled mode, and at least one of the first yoke plate and the second yoke plate is connected with the shell. According to the technical scheme, the thickness of the sound production device can be reduced while double-sided sound production is realized.
Owner:GOERTEK INC
Sound production device
ActiveCN111405424AIncrease sound loudnessSmall sizeNon-planar diaphragms/conesEngineeringSound production
The invention provides a sound production device, which comprises a basin frame, a vibration system and a magnetic circuit system. The vibration system comprises an annular upper vibrating diaphragm,an annular lower vibrating diaphragm, an annular voice coil, an annular upper framework, an annular lower framework and an annular isolation vibrating diaphragm, and the upper vibrating diaphragm is fixed on the basin frame. The lower vibrating diaphragms are arranged around the magnetic circuit system at intervals, and the peripheral sides of the lower vibrating diaphragms are fixed on the basinframe. The upper framework is respectively connected with the upper vibrating diaphragm and the voice coil. The lower framework is respectively connected with the lower vibrating diaphragm and the voice coil. The outer peripheral side of the isolation diaphragm is connected with the basin stand body, and the inner peripheral side is connected with the lower skeleton. Compared with the prior art, the sound production device is higher in acoustic loudness and better in acoustic performance.
Owner:AAC TECH PTE LTD
Sounding device
ActiveCN111405421AIncrease sound loudnessImprove acoustic performanceNon-planar diaphragms/conesEngineeringSound production
The invention provides a sounding device, which comprises a basin stand, a vibration system and a magnetic circuit system. The vibration system comprises an upper vibrating diaphragm, a lower vibrating diaphragm, a voice coil, an annular framework and an isolation voice diaphragm. The upper vibrating diaphragm is fixed on the basin stand and forms an accommodating space together with the basin stand. One side, far away from the accommodating space, of the upper vibrating diaphragm is communicated with the outside and serves as an upper front cavity for the upper vibrating diaphragm to producesound. The outer peripheral side of the lower vibrating diaphragm and the outer peripheral side of the isolation vibrating diaphragm are respectively connected with the basin stand, and the inner peripheral side of the lower vibrating diaphragm and the inner peripheral side of the isolation voice diaphragm are respectively connected with the skeleton. The voice coil is connected with the upper vibrating diaphragm and the framework respectively, drives the upper vibrating diaphragm to vibrate and drives the framework to drive the lower vibrating diaphragm to vibrate at the same time. The isolation vibrating diaphragm, the lower vibrating diaphragm, the framework and the basin stand jointly divide the accommodating space into a lower front cavity used for sounding of the lower vibrating diaphragm and a rear cavity used for sharing of the upper vibrating diaphragm and the lower vibrating diaphragm. The frame is provided with a sounding hole for communicating the lower front cavity with the outside. Compared with the prior art, the sound production device is higher in acoustic loudness and better in acoustic performance.
Owner:AAC TECH PTE LTD
Acoustic radiation assembly and sound production equipment
ActiveCN110475185AReduce sound lossIncrease sound loudnessElectrical transducersLoudspeakersAuditory radiationSound production
The invention discloses an acoustic radiation assembly and sound production equipment. The acoustic radiation assembly comprises a sound production part, a shell and a passive radiation part, the shell accommodates and assembles the sounding piece and is provided with a sound outlet channel, and the sound outlet channel is located on the front side of the sounding direction of the sounding piece;the passive radiation part is accommodated and assembled in the shell; the passive radiation part is positioned on the front side of the sounding direction of the sounding part and is positioned on the side edge of the sounding channel; a gap is formed between the passive radiation piece and the sounding piece to form a first cavity; the first cavity is communicated with the sound outlet channel;a gap is formed between one side, deviating from the sound production part, of the passive radiation part and the shell, a gap is formed between one side, deviating from the passive radiation part, ofthe sound production part and the shell to form a second cavity, at least part of the sound production part directly faces the sound production channel in the sound production direction, and at leastpart of the sound production part directly faces the passive radiation part in the sound production direction. The above mode can improve the sound loudness of the acoustic radiation assembly, effectively guarantees the high pitch, improves the low-frequency effect, and can effectively improve the tone quality.
Owner:HYTERA COMM CORP
Wireless charger and electronic product assembly
InactiveCN110138031AFunction as a sounding deviceIncrease sound loudnessBatteries circuit arrangementsElectric powerComputer terminalSound production
The invention discloses a wireless charger and an electronic product assembly. The wireless charger includes a charger cover plate and a charger shell. The charger cover plate is suitable for bearinga mobile terminal. The charger cover plate is configured to vibrate with the vibration generated by the mobile terminal. The charger shell and the charger cover plate form a sound production chamber.A mobile terminal sound production technology and a wireless charging technology are combined in the invention. The wireless charger plays the role of a sound production device, and helps the mobile terminal placed on the wireless charger to improve the vibration loudness and sound loudness.
Owner:GOERTEK INC
Sound production device
ActiveCN113099362AImprove magnetismIncrease sound loudnessElectrical transducersEngineeringSound production
The invention discloses a sound production device, the sound production device comprises a shell, a magnetic circuit system and two vibration systems, the magnetic circuit system comprises a central magnetic circuit structure and side magnetic circuit structures, the central magnetic circuit structure comprises a central magnet and two central magnetic conductive plates, each central magnetic conductive plate comprises a first magnetic conductive part corresponding to the central magnet, the at least one central magnetic conductive plate comprises a first connecting part extending outwards from the edge of the first magnetic conductive part, and the first connecting part is connected with the shell; the side magnetic circuit structure comprises a plurality of side magnets and side magnetic conductive plates, and the side magnets and the first connecting parts are distributed at intervals in the circumferential direction of the central magnet; and magnetic gaps are formed between the central magnet and the central magnetic conductive plate and between the side magnets and the side magnetic conductive plates. Each vibration system comprises a vibrating diaphragm and a voice coil, the vibrating diaphragms are installed on the shell, the two vibrating diaphragms are arranged on the two opposite sides of the magnetic circuit system respectively, and the voice coil of each vibration system extends into the magnetic gap. According to the technical scheme, the sound loudness of the sound production device can be improved while double-sided sound production is realized.
Owner:GOERTEK INC
A kind of preparation method of vibrating and sounding screen component
ActiveCN110049412BGood vocal consistencyEasy to implementElectrical transducersAcousticsMechanical engineering
The present application provides a method for preparing a vibrating and sounding screen assembly, which includes the following steps: providing a sounding drive assembly and a gap limit gasket, wherein the sounding drive assembly includes a bracket with an inner surface, a first vibrator, and a second vibrator. A vibrator; providing a display screen and a middle frame, wherein the display screen includes a front surface for displaying images and an opposite rear surface, the middle frame is supported on the rear surface of the display screen, and the middle frame is provided with Mounting hole; fix the bracket equipped with the gap spacer on the middle frame, and fix the second vibrator to the rear surface of the display screen through the mounting hole; remove the The spacer is used to keep the distance between the first vibrator and the second vibrator within a preset distance range.
Owner:HUAWEI TECH CO LTD
Sound device
ActiveCN111405427BIncrease sound loudnessImprove acoustic performanceNon-planar diaphragms/conesEngineeringSounds device
The invention provides a sound-generating device, which includes a frame, a vibration system and a magnetic circuit system. The vibration system includes an upper diaphragm, a lower diaphragm, a voice coil, a skeleton and an isolation diaphragm; One side of the magnetic circuit system; the lower diaphragm is ring-shaped and set around the magnetic circuit system at intervals, the lower diaphragm and the upper diaphragm are set at intervals relative to each other, and the outer peripheral side of the lower diaphragm is fixed on the basin frame; the voice coil is connected to the upper diaphragm close to One side of the magnetic circuit system is inserted in the magnetic gap; the skeleton is ring-shaped and set around the magnetic circuit system at intervals. The skeleton is connected to the voice coil and the lower diaphragm respectively. The voice coil drives the upper diaphragm to vibrate, and at the same time drives the skeleton to drive The lower diaphragm vibrates; the isolation diaphragm is ring-shaped and is set around the magnetic circuit system at intervals. The isolation diaphragm is arranged between the upper diaphragm and the lower diaphragm at intervals. The inner peripheral side is connected with the skeleton. Compared with the related art, the sound emitting device of the present invention has higher acoustic loudness and better acoustic performance.
Owner:AAC TECH PTE LTD
A smart headset
ActiveCN110830867BIncrease sound loudnessReduce offsetNon-optical adjunctsFrequency/directions obtaining arrangementsEar AuricleEngineering
Owner:GOERTEK INC
Device for copper generation principle experimental instrument
PendingCN113744601AEasy installation and disassemblyEasy to operateEducational modelsPhysicsThreaded rod
The invention discloses a device for a copper generation principle experimental instrument. The device comprises a knocking rod and a bottom plate, a trapezoidal table is arranged on the top surface of the bottom plate, a soft leather hose is uniformly wound on the trapezoidal table, a pair of sliding rods is arranged on the left side of the trapezoidal table, a transverse plate is arranged between the top ends of the two sliding rods, and the two ends of the bottom surface of the transverse plate are fixedly connected with the top ends of the two sliding rods respectively. A sliding assembly is arranged between the two sliding rods, a vertical plate is arranged on the right side of the trapezoidal table, the bottom surface of the vertical plate is fixedly connected with the top surface of the bottom plate, a sliding groove is formed in the top surface of the vertical plate, a threaded rod is arranged in the sliding groove, and the threaded rod is rotatably connected with the inner bottom surface and a top surface port of the sliding groove through bearings. An adjusting handle is fixedly arranged at the top end of the threaded rod, a sliding block is slidably arranged in the sliding groove, a threaded groove is formed in the middle of the sliding block, the threaded rod is located in the threaded groove and is in threaded connection with the threaded groove, and a pair of symmetrical clamping assemblies is arranged on the side surface of the vertical plate. The device is easy to operate and convenient to adjust.
Owner:王贵林
Sound device
ActiveCN111405425BIncrease sound loudnessSmall sizeNon-planar diaphragms/conesEngineeringSound production
Owner:AAC TECH PTE LTD
Dragon boat suitable for match
ActiveCN110696973AImprove rotational flexibilityEasy to wrapWaterborne vesselsCanoes/kayaksMarine engineeringStructural engineering
The invention discloses a dragon boat suitable for a match. The dragon boat comprises a dragon boat body, wherein the dragon boat body is provided with a drummer unit; drummer unit comprising a template, a pedal cabin is sunken close to the front end of the template; two protruding parts protrude out of the template surface at the front end of the pedal cabin; the upper end faces of the protrudingparts incline from front to back. A seat surface is formed on the template surface at the rear end of the pedal cabin; the upper part of the seat surface protrudes to form a backrest; a first left end part and a first right end part protrude from the two sides of the pedal cabin; a second left end part and a second right end part protrude from the two sides of the seat surface; a drum support with a drum is placed and fixed on the upper end surface of each protruding part; according to the invention, by arranging an independent detachable integrated drummer unit, accurate and efficient knocking of the drummer is facilitated, the drum bottom face is improved through the protruding parts, the loudness is increased, the drummer drumming action is more natural, and more powerful and it is easier to knock the drum circle center, the sound loudness is higher, the line type is matched with the ship body curve, and the drummer unit and the dragon boat body are convenient to install and can bedetached.
Owner:中国皮划艇协会
A dragon boat suitable for racing
ActiveCN110696973BImprove rotational flexibilityEasy to wrapWaterborne vesselsCanoes/kayaksMarine engineeringStructural engineering
The invention discloses a dragon boat suitable for a match. The dragon boat comprises a dragon boat body, wherein the dragon boat body is provided with a drummer unit; drummer unit comprising a template, a pedal cabin is sunken close to the front end of the template; two protruding parts protrude out of the template surface at the front end of the pedal cabin; the upper end faces of the protrudingparts incline from front to back. A seat surface is formed on the template surface at the rear end of the pedal cabin; the upper part of the seat surface protrudes to form a backrest; a first left end part and a first right end part protrude from the two sides of the pedal cabin; a second left end part and a second right end part protrude from the two sides of the seat surface; a drum support with a drum is placed and fixed on the upper end surface of each protruding part; according to the invention, by arranging an independent detachable integrated drummer unit, accurate and efficient knocking of the drummer is facilitated, the drum bottom face is improved through the protruding parts, the loudness is increased, the drummer drumming action is more natural, and more powerful and it is easier to knock the drum circle center, the sound loudness is higher, the line type is matched with the ship body curve, and the drummer unit and the dragon boat body are convenient to install and can bedetached.
Owner:中国皮划艇协会
Receiver
The invention provides a receiver, and relates to the technical field of receivers. The receiver is provided with an upper cover, a base frame, a diaphragm, a voice coil and a magnetic circuit unit, the diaphragm is adhesively fixed between the upper cover and the base frame, and the upper cover and the base frame are thermally melted, the voice coil is adhesively fixed to a lower surface of the voice coil, the magnetic circuit unit comprises a magnet, a pole core supported on the upper surface of the magnet and a magnet yoke connected to the lower surface of the magnet and forming a magneticgap with an outer circumferential surface of the pole core, the magnet has a first magnet portion and a second magnet portion protruding from the first magnet portion, the pole core is an annular polecore, and the annular pole core is supported on the upper surface of the first magnet portion is sleeved on the outer periphery of the second magnet portion.
Owner:厦门东声电子有限公司
a speaker box
ActiveCN111629288BSave spaceReduce volumeFrequency/directions obtaining arrangementsTransducer casings/cabinets/supportsSound filmEngineering
The invention provides a loudspeaker box, which includes a box body and a sounding unit, the sounding unit includes a casing and an upper sound film and a lower sound film installed on the casing, and the upper sound film, the lower sound film and the casing surround A first cavity is formed, the casing includes a main body part fixedly connected with the upper sound film and the lower sound film and a connecting platform protruding outward from the main body part, and the box body includes a support part having a second cavity and a projection , the sounding unit is fixed to the bump through the connecting platform, the housing is provided with a first leakage channel communicating with the first cavity, the box is provided with a second leakage channel communicating with the second cavity, and the first leakage channel is It communicates with the second leakage channel to form a rear cavity leakage channel, and the first cavity communicates with the second cavity through the rear cavity leakage channel; Groove through which the anterior cavity communicates with the outside world. The loudspeaker box of the present invention increases the vibration area of the sounding unit and can counteract its own vibration, thereby improving the quality of sounding.
Owner:AAC TECH PTE LTD
Sound device
ActiveCN111405424BIncrease sound loudnessSmall sizeNon-planar diaphragms/conesEngineeringSounds device
The invention provides a sound generating device, which includes a basin frame, a vibration system and a magnetic circuit system. The vibration system includes an annular upper diaphragm, a lower diaphragm, a voice coil, an upper skeleton, a lower skeleton and an isolation diaphragm. The diaphragm is fixed to the frame; the lower diaphragm is arranged at intervals around the magnetic circuit system, and the outer peripheral side of the lower diaphragm is fixed to the frame; the upper frame is respectively connected with the upper diaphragm and the voice coil; the lower frame is respectively connected with the lower diaphragm and the voice coil; The outer peripheral side of the isolation diaphragm is connected to the frame body, and the inner peripheral side is connected to the lower frame. Compared with the related art, the sound emitting device of the present invention has higher acoustic loudness and better acoustic performance.
Owner:AAC TECH PTE LTD
Sound device
InactiveCN111405428BIncrease sound loudnessSmall sizeNon-planar diaphragms/conesVibrating membraneEngineering
The invention provides a sound-generating device, which includes a basin frame, a vibration system and a magnetic circuit system. The vibration system includes: an upper diaphragm, which is fixed to the basin frame and together forms a storage space, and the upper diaphragm is far away from the magnetic circuit system. One side of the lower diaphragm communicates with the outside world and serves as the upper front chamber where the upper diaphragm emits sound; the lower diaphragm is ring-shaped, and the outer peripheral side of the lower diaphragm is fixed to the frame; the upper frame is respectively connected to the voice coil and the upper The diaphragm is connected, and the lower skeleton is connected with the lower diaphragm; the ring-shaped isolation diaphragm is connected with the outer peripheral side of the isolation diaphragm and the basin frame, and its inner peripheral side is connected with the upper skeleton and the lower skeleton. Compared with the related art, the sound emitting device of the present invention has higher acoustic loudness and better acoustic performance.
Owner:AAC TECH PTE LTD
Loudspeaker components and electronics
ActiveCN111756903BIncrease sound loudnessAchieve stereo effectElectrical transducersLoudspeakersEngineeringSound wave
Owner:VIVO MOBILE COMM CO LTD
Sound production device and electronic equipment
The invention discloses a sound production device and electronic equipment, the sound production device comprises a shell, a first vibration system, a second vibration system and a magnetic circuit system, and the first vibration system comprises a first vibrating diaphragm and a first voice coil. The second vibration system comprises a second vibrating diaphragm and two second voice coils. The magnetic circuit system comprises a first center magnet, two second center magnets, a first yoke plate and a second yoke plate. The two second center magnets are arranged on the two opposite sides of the first center magnet respectively. A first magnetic gap into which the first voice coil extends is formed on the peripheral side of the first center magnet, and the first center magnet is connected to the second yoke plate. A second magnetic gap into which the second voice coil extends is formed on the peripheral side of the second center magnet, and the second center magnet is connected to the first yoke plate. The first center magnet and the second center magnet are arranged between the first yoke plate and the second yoke plate in a tiled mode, and at least one of the first yoke plate and the second yoke plate is connected with the shell. According to the technical scheme, the thickness of the sound production device can be reduced while double-sided sound production is realized.
Owner:GOERTEK INC
Stereo mobile terminal
ActiveCN109040384BEnhance stereo listening experienceThe sound output area is reducedSubstation speech amplifiersTwo-channel systemsEngineeringComputer science
The invention discloses a mobile terminal capable of stereophonic sound, comprising: a first sound emitting element, a second sound emitting element, a third sound emitting element, a first power amplifier driving circuit, a second power amplifier driving circuit and an audio controller; One sound emitting element and the second sound emitting element are connected in parallel to the first power amplifier driving circuit, and the third sound emitting element is connected to the second power amplifier driving circuit; the first sound emitting element and the second sound emitting element are placed on the mobile terminal along the length direction On the upper end, the third sound output element is placed at the lower end along the length direction; the audio controller is used to make the first sound output element and the second sound output element output the stereo left channel signal and make the third sound output element output the right channel Signal. According to the technical solution of the present invention, the stereo effect of the mobile terminal can be realized, so that the user can feel the stereo effect without using auxiliary equipment such as stereo earphones or stereo speakers every time, and the user experience can be improved.
Owner:ONEPLUS TECH SHENZHEN
A percussive low-frequency underwater acoustic transducer driven by ocean current energy
InactiveCN103236256BReduce lossesReduce frictionSound producing devicesAcoustic energyReciprocating motion
The invention provides a percussion-style low-frequency underwater acoustic transducer driven by marine current energy. The percussion-style low-frequency underwater acoustic transducer comprises a main cylindrical permanent magnet, an auxiliary cylindrical permanent magnet, a cylinder, a percussion member, an acoustic shell, an acoustic tube and the like. The principle of homopolar repulsion and heteropolar attraction between the main cylindrical permanent magnet and the auxiliary cylindrical permanent magnet is adopted; by continually changing magnetic poles of the main cylindrical permanent magnet in the cylinder, the auxiliary cylindrical permanent magnet outside the cylinder is controlled to reciprocate, and a percussion head is driven by the auxiliary cylindrical permanent magnet to periodically percuss the panels of the acoustic tube and the acoustic shell to make sound; and the acoustic signals are high in loudness and wide in frequency band which is in the lower band range. Marine current energy can be directly used for continuously generating acoustic energy required by underwater detection; and the percussion-style low-frequency underwater acoustic transducer is novel in principle, easy to manufacture, compact in structure, reliable in sealing, high in energy utilization rate and long in service life.
Owner:CSSC SYST ENG RES INST +1
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