36results about How to "Increase sound loudness" patented technology

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.

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.

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.

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.

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.

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.

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.

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.

The invention discloses a smart head-mounted device. The smart head-mounted device includes: a lens and a leg, the lens is connected to the leg, and the leg has a cavity; a sounding device, the The sound-generating device is arranged in the cavity, and the sound-generating device divides the cavity into a front acoustic cavity and a rear acoustic cavity; a sound-emitting hole is opened on the leg, and the sound-emitting hole communicates with the front acoustic cavity ; The main sound leakage hole and the auxiliary sound leakage hole provided on the legs, the main sound leakage hole and the auxiliary sound leakage hole communicate with the rear sound cavity; the sound outlet, the main sound leakage hole and The position of the auxiliary sound leak hole is configured such that when the wearer wears the smart head-mounted device, the sound output hole and the auxiliary sound leak hole are located on the front side of the wearer's auricle, and the main sound leak hole The sound vent is located on the rear side of the wearer's pinna.

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.

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.

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.

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.

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.

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.

Embodiments of the present application provide a loudspeaker assembly and electronic equipment. Wherein, the loudspeaker assembly includes: at least two sounding assemblies, each sounding assembly includes a loudspeaker housing and a vibration unit, the loudspeaker housing is provided with a sound outlet, the vibration unit is arranged in the loudspeaker housing, and separates the inner cavity of the loudspeaker housing A first cavity and a second cavity are formed, and the first cavity communicates with the sound outlet; wherein, the second cavities of at least two sound generating components communicate. In the technical solution provided by the embodiment of the present application, by connecting the second cavities of at least two sound-generating components, the sound waves generated by each vibration unit can not only propagate in the second cavity of the sound-generating component where it is located, but also can generate sound in other sound-generating components. Propagation in the second cavity of the component increases the propagation path of the sound wave generated by each vibration unit in the speaker component, which is beneficial to improving the sound loudness of the speaker component and improving the sound effect of the speaker component.

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.

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.

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.