218 results about "High pitch" patented technology

The utility model provides a double-ring waveguide horn sound box, which comprises a sound box shell, a bass assembly comprises a bass loudspeaker and a bass waveguide horn, the bass loudspeaker is arranged on the sound box shell in a penetrating manner, the bass waveguide horn is arranged on the bass loudspeaker and is positioned at one end of the bass loudspeaker, which is positioned outside the sound box shell, and the bass waveguide horn is positioned at the other end of the bass loudspeaker. The high-pitch assembly comprises a high-pitch loudspeaker and a high-pitch waveguide horn, the high-pitch loudspeaker is arranged on the sound box shell in a penetrating manner, the high-pitch waveguide horn is arranged on the high-pitch loudspeaker and located at one end, located outside the sound box shell, of the high-pitch loudspeaker, and the low-pitch waveguide horn and the high-pitch waveguide horn are arranged on the sound box shell in a staggered and superposed manner. According to the utility model, the bass waveguide horns and the treble waveguide horns are arranged on the sound box shell in a staggered and superposed manner, so that the up-down propagation direction of treble is compressed by bass, and the propagation direction of the treble is transversely diffused, thereby enabling the transverse diffusion of the treble to be wider, further increasing the listening position of the sound box, and improving the listening effect of the sound box. And the hearing feeling of the user is improved.

The invention relates to the technical field of vehicle-mounted electronic products, in particular to a vehicle-mounted sound box with an adjusting function, which comprises a sound box body with a concave part on the surface, and further comprises a movable seat mechanism for bearing the sound box body; the through groove is formed in the surface of the automobile center console and is used for providing a space for the movable seat mechanism to move up and down; the shielding mechanism is made of an elastic material, and the shielding mechanism is arranged in a gap between the movable seat mechanism and the through groove; the double-motor driving system is integrated through the adjusting mechanism, the first motor drives the screw rod to rotate through the transmission rod and the bevel gear to achieve stable lifting of the seat body, the second motor drives the vertical column to rotate through the gear and cooperates with the ferrule to achieve horizontal steering of the loudspeaker box body, and a user is allowed to adjust the height according to the listening habit. The high-pitch directivity and low and medium-frequency sound field distribution are optimized, the problems of high-pitch dispersion and fuzzy positioning are solved, and the immersion and definition of audio experience in a vehicle are remarkably improved.

A kind of sound box, including cabinet and the protective cover being arranged in the front of cabinet, first acoustic cavity is equipped in the cabinet, high pitch loudspeaker assembly and bass horn assembly are equipped on the first acoustic cavity, second acoustic cavity is also equipped in the cabinet, the first acoustic cavity is communicated with second acoustic cavity by loudspeaker pipe passing through partition, the loudspeaker pipe is fixedly connected with cabinet, one end of the loudspeaker pipe is arranged in the back of high pitch loudspeaker assembly, the other end of the loudspeaker pipe is inserted into second acoustic cavity. By adding a second acoustic cavity in the cabinet and the loudspeaker pipe that is communicated with the first acoustic cavity and the second acoustic cavity, and one end of the loudspeaker pipe is arranged in the back of the high pitch loudspeaker assembly, the manufacturer selects loudspeaker pipe with different pipe diameter and different length according to actual situation, so that the inside of the loudspeaker pipe helps the reflection and resonance of sound waves, so that the utility model shows more rich tone, and then the sound performance comparable to real musical instrument.

A coaxial speaker includes a tweeter assembly, a woofer assembly, and a frame. The tweeter assembly is used to generate treble sound with a primary propagation direction along a first direction. The woofer assembly is used to generate bass sound with a primary propagation direction along the first direction. The woofer assembly includes a sound guide portion, which faces the tweeter assembly. The treble sound generated by the tweeter assembly, having a primary propagation direction along the first direction, is guided by the sound guide portion to propagate in a second direction. The tweeter assembly and woofer assembly are coaxially arranged, and the second direction is different from the first direction. The tweeter assembly and woofer assembly are mounted on the frame.

A coaxial speaker including a basket frame, a magnetic circuit system, a woofer vibration system, and a tweeter vibration system. The magnetic circuit system is provided with a cavity, a tweeter magnetic gap, and a woofer magnetic gap. The woofer vibration system includes a woofer diaphragm and a woofer voice coil. The tweeter vibration system includes a tweeter diaphragm and a tweeter voice coil. The woofer magnetic gap includes a first magnetic gap and a second magnetic gap, and the woofer voice coil includes a first voice coil and a second voice coil. The magnetic circuit system includes a magnetic yoke, a main magnetic portion, a first sub-magnetic portion, and a second sub-magnetic portion. The main magnetic portion includes a first magnet, a second magnet, a third magnet, and a main pole core. The main core includes a first plate portion, a second plate portion, and a wall portion.

The utility model discloses a height calibration device for an aluminum total gear of a vertical piano action. The height calibration device comprises a calibration platform, a first calibration block and a second calibration block, the calibration platform is provided with a calibration plane, the calibration plane is horizontally arranged, the bass support, the alto support and the high-pitch support are sequentially and vertically arranged on the calibration plane, the first calibration block and the second calibration block are arranged on the calibration plane, the first calibration block is located between the bass support and the alto support, and the second calibration block is located between the alto support and the high-pitch support. The aluminum total gear is placed on the upper side surfaces of the first calibration block and the second calibration block, and the thickness of the first calibration block is the same as that of the second calibration block and is the standard height of installation of the aluminum total gear. According to the utility model, the deviation of the string striking machine after being assembled on the piano due to the inconsistent height of the bracket relative to the aluminum main gear can be avoided, the assembly quality and efficiency are improved, the product quality is more stable, the adjustment difficulty is small, and the operation is convenient.

The utility model discloses a compact sound box, which is used for solving the technical problems that the overall height of the conventional three-frequency-division sound box is large and the compact design cannot be realized. The compact sound box comprises a box body, a first loudspeaker assembly and a bass loudspeaker which are arranged along the horizontal direction are arranged in the box body, and the first loudspeaker assembly comprises a high pitch loudspeaker and a middle pitch loudspeaker which are arranged along the height direction of the box body. Through the above design, the overall height of the sound box can be effectively reduced, and the compact design of the sound box can be realized, so that the sound box can be suitable for a scene with a small placement space.

The utility model discloses a vehicle door high pitch loudspeaker installation support which comprises a support body, the support body is provided with an installation column hole, and the installation column hole is suitable for installing a loudspeaker of a vehicle. The positioning concave columns are located at the two opposite ends of the mounting column hole and communicated with the mounting column hole, and the positioning concave columns are provided with locking holes; the left positioning connecting plate and the right positioning connecting plate are located on the left side and the right side of the mounting column hole respectively, main positioning holes are formed in the centers of the left positioning connecting plate and the right positioning connecting plate, and main guide columns are arranged on the back faces of the left positioning connecting plate and the right positioning connecting plate. The loudspeaker is limited through the mounting column holes of the support body, then the positioning concave columns at the two ends are matched with the left positioning connecting plate and the right positioning connecting plate for locking and positioning, and stability is enhanced. The positioning concave columns are located at the two opposite ends and conduct the installation column holes at the same time, the loudspeaker body is installed more tightly, and stability is better.

The embodiment of the invention discloses a multi-loudspeaker array and a sound field partition control method of a vehicle cabin. The multi-loudspeaker array comprises a plurality of bass loudspeakers, a plurality of alto loudspeakers, a plurality of treble loudspeakers, a plurality of headrest loudspeakers, one or more mega bass loudspeakers and a plurality of surround loudspeakers. The bass loudspeaker, the alto loudspeaker and the treble loudspeaker are distributed in a plurality of areas of a vehicle cabin and are used for forming a sound field covering a full frequency band; the headrest loudspeaker is arranged at the position of a seat headrest and used for making sound to a corresponding seat in a near-field mode. The mega bass loudspeaker is arranged in the rear area of the vehicle cabin and used for supplementing low-frequency signals; the surround loudspeaker is arranged in the rear area of the vehicle cabin and used for forming a sound field surrounding the vehicle cabin. According to the embodiment of the invention, through the distributed layout and function division of the high-density multi-loudspeaker array, the sound fields of different seats are independently constructed and do not interfere with each other, a hardware basis is provided for partition control, and personalized audio requirements are met.

The utility model provides an aluminum basin high pitch loudspeaker, which comprises a loudspeaker body, the loudspeaker body is sequentially provided with T iron, magnetic steel, a washer, a positioning ring and a basin stand from bottom to top, the positioning ring is provided with a vibration assembly, the vibration assembly comprises a supporting plate, a buffer pad, a vibrating diaphragm, a voice coil and a wiring terminal, and the middle part of the supporting plate is provided with a round hole. The bottom surface of the buffer pad is connected with the top surface of the supporting plate, the bottom surface of the vibrating diaphragm is connected with the top surface of the buffer pad, the top of the voice coil penetrates through the circular hole to be connected with the vibrating diaphragm, the two ends of the supporting plate are provided with the wiring terminals, the wiring terminals are connected with the voice coil through leads, the basin frame is in a horn shape, sound generated by vibration of the vibrating diaphragm is amplified through the basin frame, and the effective transmission range of high frequency can be widened. And the phase cone is arranged in the center of the top of the basin stand, so that the sound wave interference can be reduced by the phase cone, the high-frequency directivity can be enhanced, and higher loudness and better definition can be kept at a longer distance.

The invention is applicable to the technical field of audio playing equipment, and provides a sound box with a high pitch turbine structure, which comprises a box body, and a bass unit mounting position, a suspension rubber ring and a coaxial positioning ring are integrally formed on the front surface of the box body, the bass unit and the treble unit are coaxially embedded in the mounting position through the coaxial positioning ring and the suspension rubber ring; according to the sound box, through the design of the integrated structure and the involute vortex air channel on the front face of the box body and in cooperation with the nanometer damping layer and the elastic damping structure, high-frequency compression distortion and resonance distortion are greatly reduced, meanwhile, the high frequency is extended to 30 KHz or above through the 2.5 frequency division design, and more music details and overtones are restored; the coaxial positioning ring is used for guaranteeing the coaxiality of the bass unit and the hanging rubber ring, and the combined structure of the bottom phase guide tube and the central cone and the filtering grating assembly with the interval of 5mm-8mm are combined, so that ultralow-frequency 360-degree uniform diffusion and accurate filtering are realized, and the pain points of low-frequency turbidity and poor directivity of a traditional phase-inverted sound box are solved.

The utility model relates to a precision mould for forming a plastic product with a special slider and terminal points, belongs to the thermoplastic plastic forming mould field, relates to a plastic mould for forming a plastic product with a special slider and embedded parts, and is mainly applied to the core parts of active bass and high-pitched loudspeakers of new energy vehicles. Through the application of the detachable slider structure, the terminal can be quickly and accurately installed, the VDI spark pattern is changed by the slider to change the material flow position, the FIP dispensing implementation process is smoothly carried out, and through the nano coating treatment on the slider insert, the terminal port position is smoothly demoulded, so that the product can be efficiently and stably produced.

The present application discloses a sound-generating unit including a housing, a magnetic circuit system, and a vibration system. A conductive terminal is formed at the housing by injection molding; the magnetic circuit system is provided in the housing, the magnetic circuit system is provided with a bass magnetic gap and a midrange magnetic gap; and a vibration system includes a bass vibration unit, a midrange vibration unit and a treble vibration unit. The midrange vibration unit and the treble vibration unit are provided at a same side of the magnetic circuit system, and the midrange vibration unit is provided around the treble vibration unit. The bass vibration unit is provided at the other side of the magnetic circuit system. The bass vibration unit includes a bass vibration diaphragm and a bass voice coil, and the bass voice coil is provided in the bass magnetic gap.

A high-frequency bass T iron transmission structure coaxial loudspeaker comprises a high pitch unit which is driven by an inner magnetic neodymium iron boron magnetic circuit; a column center hole of the bass T iron is processed into a horn structure extending axially, and the geometric contour of the horn structure is an exponential curve and is used for guiding sound waves; the high-pitch pipe plug is made of an ABS plastic material and is coaxially nested and connected with the horn structure of the low-pitch T iron to form a continuous sound wave transmission channel; the short circuit ring is made of a high-conductivity copper material, is embedded in the magnetic gap of the bass magnetic circuit and is used for inhibiting harmonic distortion of the magnetic field; the coaxial loudspeaker box is novel in structure and more suitable for a loudspeaker box product for listening in small space and close distance, the high pitch unit and the low pitch unit of the loudspeaker are designed to be coaxial, so that the high pitch and the low pitch of a sounding point make sound on the same axis, the tone is more natural and smooth, the high pitch installation position of the loudspeaker box body is removed, and the size can be correspondingly designed to be small and compact.

The embodiment of the present application provides a vibrating sound device, comprising a shell, a vibrating assembly, a driving coil and an elastic sheet, wherein the vibrating assembly comprises a yoke, a vibrating system and a magnetic circuit system; the vibrating system comprises a first vibrating diaphragm, a first voice coil for driving the first vibrating diaphragm to vibrate and sound, a second vibrating diaphragm and a second voice coil for driving the second vibrating diaphragm to vibrate and sound; the magnetic circuit system comprises a first magnet assembly with a first magnetic gap and a second magnet assembly with a second magnetic gap; the first voice coil is inserted into the first magnetic gap, and the second voice coil is inserted into the second magnetic gap; the first magnet assembly is provided with a through hole penetrating through the first magnet assembly along a first direction; a driving magnetic steel is fixed to the first magnet assembly and located in the through hole, and the driving coil is located in the through hole and drives the vibrating assembly to vibrate. The whole weight is used as the vibrating mass, and the vibrating mass does not need to be additionally provided, so that the size can be effectively reduced; and the loudspeaker with coaxial full-band low and high sounds can be formed, the overall frequency band is widened, and high-quality sound effects are provided.

1. Name of the product in this design: Rotary tweeter (5D). 2. Intended use of this design: for use as a speaker in automobiles, homes, and other spaces. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: a 3D model.

1. Name of the designed product: car audio (156 rotating tweeter). 2. Use of the designed product: used as a player inside a vehicle. 3. Design points of the designed product: in shape. 4. Picture or photo that best shows the design points: perspective view 1.

1. The name of the design product: high-pitched horn (inclined type). 2. The use of the design product: It is an acoustic component, mainly to enhance the directivity of sound, improve the sound pressure level (loudness) and optimize the efficiency of sound wave propagation, widely used in professional sound (stage, cinema), public broadcasting, outdoor sound amplification and other scenes. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view.

The application discloses a coaxial loudspeaker with a horn and a shape optimization method thereof. The coaxial loudspeaker comprises a bass loudspeaker, a treble loudspeaker, and a horn with an inner cavity and open at both upper and lower ends. The treble loudspeaker comprises a treble cone, the horn surrounds the treble cone, the lower end of the horn is connected to the treble loudspeaker, and the upper end of the horn is the largest inner diameter part. The shape optimization method comprises the following steps: S1, establishing a geometric model of the coaxial loudspeaker as claimed in claim 1 to obtain a control node in a profile curve of the horn; S2, setting a physical field; S3, defining material parameters; S4, meshing; S5, optimizing geometric parameters of the profile shape of the horn; and S6, drawing an optimized geometric model of the horn according to the optimized parameters. The application can have a better frequency response curve when the treble loudspeaker works, and can quickly and accurately optimize the shape of the horn to improve the acoustic performance of the loudspeaker.

The invention discloses a sound box capable of separating treble and bass, and belongs to the technical field of Bluetooth treble and bass sound boxes, the sound box capable of separating treble and bass comprises two bass sound boxes connected with a treble sound box main body, and quick connection structures are arranged between the two sides of the upper surface of the treble sound box main body and the lower surfaces of the bass sound boxes. An inserting groove is formed in the lower portion of the back face of the high-pitch sound box body, a mounting plate used for mounting a data interface is fixedly connected to the middle of the inner side of the inserting groove, the high-pitch sound box body is located in the inserting groove, dustproof structures are arranged on the two sides of the mounting plate, and the quick connection structure comprises connecting grooves formed in the two sides of the upper surface of the high-pitch sound box body. According to the invention, through the arrangement of the quick connection structure, the treble and bass sound boxes can be separated, a proper sound box is selected according to different use scenes, treble and bass reverberation is realized when the treble sound box main body and the bass sound box are combined, dust can be effectively prevented from entering the data interface, and good contact of the data interface is ensured.

The utility model provides a hallstand loudspeaker mounting structure, a hallstand and a vehicle, and relates to the technical field of vehicle parts. The hallstand loudspeaker installation structure comprises an installation support and a first loudspeaker. A clamping matching part is arranged on the mounting bracket, and a clamping part is arranged on the first loudspeaker; the clamping part is clamped and matched with the clamping matching part, so that the first loudspeaker and the mounting bracket are relatively fixed; and the mounting bracket is used for being mounted on a metal plate of a hat and coat stand. The first loudspeaker such as the high-pitch loudspeaker is not clamped on the hat and coat stand plastic decoration plate any more, but clamped on the installation support, after the installation support with the high-pitch loudspeaker is fixed to the hat and coat stand metal plate, connection of the high-pitch loudspeaker and the wiring harness does not need to be conducted at the same time with installation of the hat and coat stand plastic decoration plate, and therefore the hat and coat stand is convenient to use. And a wide visual field is ensured when a worker connects the high pitch loudspeaker with the wire harness, a wide operation space is also provided, and the wire harness assembly is faster and more efficient.

The invention discloses a resonance chamber vibration quantity increasing device. The resonance chamber vibration quantity increasing device comprises a fixing mechanism fixedly connected with a resonance chamber body and a string supporting cross beam fixed to the fixing mechanism. And the string supporting cross beam is arranged above the resonator panel between the lower bridge of the resonator and the bottom of the resonator body. The resonance box has the advantages that the independent string supporting device is arranged, the force of strings applied to the resonance box panel through the lower bridge of the resonance box is shared, the resonance box panel can be made to be very thin, the vibration amplitude of the resonance box panel is improved, the vibration volume of the resonance box is greatly improved, the volume of the resonance box type musical instrument is greatly improved, and the resonance box type musical instrument is more attractive in appearance. The tone expressive force is greatly improved, the sound is more transparent and loud, the high pitch is more penetrable, and the low pitch is more vigorous. As the string supporting device shares the pressure of most strings, the pressure of the panel is released, and the service life of the resonator is greatly prolonged.

The utility model relates to the technical field of sound boxes, in particular to a sound box with a loudspeaker protection structure, which comprises a box body and a front cover arranged on one side of the box body, a first limiting groove and a second limiting groove are arranged in the front cover in a penetrating manner, a bass loudspeaker is arranged in the first limiting groove, and a treble loudspeaker is arranged in the second limiting groove. Protective covers are arranged on the outer sides of the bass loudspeaker and the treble loudspeaker, and protective covers for protecting the loudspeakers are fixedly arranged on the outer sides of the first limiting groove and the second limiting groove, so that an external object is effectively prevented from directly contacting a loudspeaker diaphragm, the loudspeakers are protected from being damaged, and the protective covers not only provide physical protection, but also can protect the loudspeakers from being damaged. The loudspeaker is arranged in the box body, normal vibration and sound transmission of the loudspeaker are ensured through air permeability of the loudspeaker, dust is prevented from entering the box body, an audio distributor is further installed in the box body, the audio distributor at least comprises a frequency divider, and the audio distributor is installed through a third limiting groove and is additionally fixed through a limiting strip.

The utility model discloses an integrated low-sound baffle sound box. The integrated low-sound baffle sound box comprises an upper sound box and a lower sound box, the upper sound box comprises an upper bottom plate, the lower sound box comprises a lower top plate, and the upper bottom plate and the lower top plate are integrally formed. The upper sound box further comprises an upper front baffle plate, an upper front back plate and an upper rear baffle plate, the upper front baffle plate and the upper front back plate are fixedly connected and form an upper sound box accommodating space for simultaneously accommodating a plurality of alto loudspeakers and a plurality of high-pitch loudspeakers, the alto loudspeakers are respectively embedded in the upper front baffle plate, and the high-pitch loudspeakers are respectively embedded in the upper front baffle plate or the upper rear baffle plate; and a gap is formed between the upper front back plate and the upper rear baffle plate. The integrated low-sound baffle sound box disclosed by the utility model has the beneficial effects that the baffle, the linear array and the high, medium and low-sound loudspeakers are seamlessly coupled together by adopting the high-integration box body, so that a sound field effect approximate to 360 degrees is formed.

The utility model provides a bass-enhanced Bluetooth earphone, and relates to the technical field of Bluetooth earphones. Comprising an earphone main body, and the earphone main body comprises a fitting part and a sound production part; a sound outlet of the sound production part is located on the side face close to the attaching part and faces the human ear. A sound outlet is formed in the sound production part, a sound outlet cavity is formed in the sound production part, the sound outlet cavity is communicated with the sound outlet, a bass enhancement slope is arranged in the sound outlet cavity, and the bass enhancement slope extends to the sound outlet. According to the utility model, through the arrangement of the bass enhancement slope surface, more high pitches are consumed in the sound outlet cavity, thereby enhancing the release rate of short waves and achieving the purpose of enhancing the bass effect.

The utility model relates to an outdoor waterproof alto-tweeter, which comprises a basin stand, a woofer and a tweeter. The bass horn comprises a bass magnetic circuit system and a bass vibration system. The bass magnetic circuit system comprises a T iron, a magnet and a Wass. The bass vibration system comprises a bass voice coil, a bass damper and a bass vibrating diaphragm. The high-pitch loudspeaker comprises a high-pitch support, a high-pitch magnetic circuit, a high-pitch vibrating diaphragm, a high-pitch voice coil, a phase plug, a high-pitch cup and a waterproof sealing piece. The tweeter and the woofer are coaxially arranged, and the tweeter and the woofer are accommodated in the woofer voice coil. The high pitch cup is fixedly arranged on one side of the high pitch support, one side of the waterproof sealing piece is fixedly connected with the low pitch vibrating diaphragm, the other side of the waterproof sealing piece is fixedly connected with the high pitch cup, and therefore the interior of the loudspeaker is sealed, and the loudspeaker has good waterproof performance.

The application discloses a portable sound equipment for vehicle, which comprises a quick-release fixing seat, a power supply connecting seat and a quick-release linkage assembly are arranged on the quick-release fixing seat, the quick-release fixing seat is installed and fixed in a passenger cabin of the vehicle, a sound box shell is installed on the quick-release fixing seat and is fixed through the quick-release linkage assembly, meanwhile, an electric connection part at the bottom of the sound box shell is connected and conducted with the power supply connecting seat, an inner core control box is installed inside the sound box shell, a bass loudspeaker is installed on the top of the inner core control box, at least one medium tone loudspeaker is installed on one end of the inner core control box, a high tone loudspeaker is installed between the upper sides of the medium tone loudspeakers, a control circuit board is installed on the inner side of the lower part of the inner core control box, a battery box is installed on the lower side of the control circuit board, and side sound membranes are installed on the front and back sides of the inner core control box. The application can solve the problems of inconvenient disassembly and assembly, unfirm installation, and poor sound box effect of the existing vehicle-mounted sound equipment.

This utility model discloses a sound guiding structure for an earphone with high and low frequency units, comprising an earphone shell and a speaker unit. The speaker unit divides the cavity into a front cavity and a rear cavity. The speaker unit is a coaxial dual speaker, comprising: a ring-shaped woofer and a tweeter located at the center of the woofer, with the woofer and tweeter having the same sound-emitting surfaces. A sound guide is provided inside the earphone shell, and a through-type tweeter channel is provided within the sound guide. One end of the tweeter channel is connected to the sound-emitting surface of the tweeter, and the other end extends to the mouthpiece. The sound generated by the woofer enters the front cavity and is then conducted out through the mouthpiece. The sound generated by the tweeter is directly conducted out through the tweeter channel. This utility model uses a coaxial dual speaker, and the sound guide directly conducts the sound generated by the tweeter through the tweeter channel, avoiding the attenuation caused by resonance and sound wave reflection of the high-frequency energy of the tweeter in the front cavity.

The utility model provides a tweeter diffuser which comprises a dome tweeter and a horn diffuser, the dome tweeter comprises an annular panel and a tweeter unit, and the tweeter unit comprises a tweeter diaphragm extending out of the inner ring of the annular panel. The horn diffusion piece comprises a supporting plate fixedly connected to the top of the annular panel and a conical part arranged in the center of the bottom of the supporting plate, a spherical groove is formed in the bottom of the conical part, a conical diffusion opening is formed in the center of the supporting plate, and the high-pitch vibrating diaphragm and the spherical groove are arranged at intervals to form a vibration gap. When the tweeter unit works, part of sound waves generated by vibration of the tweeter diaphragm are compressed through the narrow opening of the conical diffusion opening to increase sound pressure, then the sound waves are diffused after passing through the conical diffusion opening, and part of the sound waves are spread and diffused between the conical part and the annular panel after passing through the vibration gap to form sound waves diffused to 360 degrees. The sound diffusion condition of a real musical instrument is simulated to the greatest extent, and the sound transmission angle range is more comprehensive.