CN212086471U - Cluster sound wave transmitting device - Google Patents
Cluster sound wave transmitting device Download PDFInfo
- Publication number
- CN212086471U CN212086471U CN202020704204.4U CN202020704204U CN212086471U CN 212086471 U CN212086471 U CN 212086471U CN 202020704204 U CN202020704204 U CN 202020704204U CN 212086471 U CN212086471 U CN 212086471U
- Authority
- CN
- China
- Prior art keywords
- sound
- horn
- wave
- acoustic
- guided wave
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Abstract
The utility model discloses a cluster sound wave emitting device, which comprises a plurality of sound emitting devices and an array supporting plate, wherein the plurality of sound emitting devices are arranged on the array supporting plate in an array form; the sound production device comprises a sound production unit and a guided wave horn, the sound production unit is arranged on one side of the array supporting plate, and the guided wave horn is arranged on the other side of the array supporting plate; the sounding unit is connected with the guided wave horn through the horn interface, one end of the horn interface is connected with a sound outlet of the sounding unit, and the other end of the horn interface is connected with a throat of the guided wave horn; the utility model adopts the sounding unit to match the waveguide horn to form the sounding device; the acoustic emission array device is formed by the plurality of acoustic emission devices, so that the volume of the device is effectively reduced, and the acoustic pressure of the device is improved; under the condition of the same sound pressure, the volume can be reduced to be less than half of the volume of the existing product, the beam-collecting angle can reach about +/-5 degrees, and the directivity of the loud-sound equipment is greatly improved.
Description
Technical Field
The utility model belongs to the technical field of the speaker, in particular to sound wave emitter tied in a bundle.
Background
The loud sound equipment is provided with highly directional audio amplification equipment with high sound intensity, long distance and high definition, is used for outputting high-intensity noise and voice, realizing loud sound rejection and long-distance voice transmission, and dispersing crowds and bird groups or carrying out long-distance communication through super-strong sound waves.
The existing strong sound directional sound transmission technology mostly adopts a common electrodynamic type or piezoelectric type loudspeaker array, and because the power of a single sound generating device is limited, if the sound radiation with high power and high sound pressure is expected to be realized, the sound radiation can be realized only by increasing the number of loudspeakers. The problems caused by this are that the sound emission is large in volume and weight, and cannot be flexibly applied to practical occasions; the structure of a plurality of sound generating devices can effectively improve sound pressure, but can not form better directivity, the bundling angle of sound waves is large, the bundling angle of the sound waves reaches +/-15 degrees, even +/-30 degrees, so that the sound intensity of the sound waves is rapidly attenuated in the remote and propagation processes, the sound waves can not be propagated to a farther direction, and the practical application occasions are limited.
SUMMERY OF THE UTILITY MODEL
To the technical problem who exists among the prior art, the utility model aims to provide a sound wave emitter tied in a bundle to solve the unable better sound wave of directive property that forms of the directional sound wave emitter of current high sound intensity, the angle tied in a bundle of sound wave is big on the contrary, the sound intensity decay is rapid, and volume and gravity are great, the limited technical problem of application range.
In order to achieve the above purpose, the utility model adopts the technical scheme that:
the utility model provides a cluster sound wave emitting device, which comprises a plurality of sound emitting devices and an array support plate, wherein the plurality of sound emitting devices are arranged on the array support plate in an array form; the sound production device comprises a sound production unit and a guided wave horn, the sound production unit is arranged on one side of the array supporting plate, and the guided wave horn is arranged on the other side of the array supporting plate; the sounding unit is connected with the guided wave horn through the horn interface, one end of the horn interface is connected with a sound outlet of the sounding unit, and the other end of the horn interface is connected with a throat of the guided wave horn.
Furthermore, the guided wave horn comprises two horn bodies and a partition plate assembly, the two horn bodies are symmetrically spliced to form an acoustic flow guided wave inner cavity, the acoustic flow guided wave inner cavity penetrates through the front end and the rear end of the horn body, a sound outlet is formed at the front end of the horn body, and a throat is formed at the rear end of the horn body; the inner cavity of the acoustic flow guided wave becomes gradually larger from one end of the throat to one end of the sound outlet;
the baffle plate assembly is arranged in the acoustic flow guided wave inner cavity and equally divides the acoustic flow guided wave inner cavity into a plurality of acoustic flow guided wave channels; the baffle plate assembly is sequentially provided with a first branch position A, a second branch position B and a third branch position C from the throat to the sound outlet along the inner cavity of the acoustic flow guided wave; a main acoustic flow guided wave channel is formed from the throat to the first branch point A;
the partition plate assembly comprises a main partition plate and two partition plates, the two partition plates are symmetrically arranged on two sides of the main partition plate, the two partition plates extend from the first bifurcation position A to the sound outlet, and the two partition plates divide an acoustic flow guided wave inner cavity from the first bifurcation position A to the second bifurcation position B into three equal parts to form three first acoustic flow waveguide channels; the main partition board extends from the second bifurcation position B to a third bifurcation position C, and the main partition board and the two partition boards divide an acoustic flow guided wave inner cavity from the second bifurcation position B to the third bifurcation position C into four equal parts to form four second acoustic flow guided channels; the two partition plates divide the sound flow guided wave inner cavity from the tail end of the main partition plate to the sound outlet into three equal parts to form three third sound flow guided wave channels.
Further, the length dimensions of the three first acoustic flow waveguide channels are the same, and the width dimensions of each first acoustic flow waveguide channel at the same length position are the same; the length dimensions of the four second sound flow waveguide channels are the same, and the width dimensions of each second sound flow waveguide channel at the same length position are the same; the three third acoustic flow waveguide channels have the same length dimension, and the width dimension of each third acoustic flow waveguide channel at the same length position is the same.
Furthermore, the interior of the main partition board is of a hollow structure, and the hollow structure is arranged in a manner that two ends are small and the middle is large;
the main partition plate comprises two rectangular mounting plates and two arc-shaped mounting plates, and the two rectangular mounting plates and the two arc-shaped mounting plates are encircled to form a hollow structure; the two rectangular mounting plates are arranged at one end close to the throat opening, and the two arc plates are arranged at one end close to the sound outlet; two rectangle mounting panels and two arc mounting panels all set up along the axis symmetry of acoustic current guided wave inner chamber, and the centre of a circle of two arc mounting panels deviates from the setting.
Furthermore, the partition plate comprises a first mounting plate and a second mounting plate, the first mounting plate is arranged at one end close to the throat, and the second mounting plate is arranged at one side close to the sound outlet; the first mounting plates of the two partition plates are arranged on two sides of the main partition plate in a surrounding manner, and one ends of the first mounting plates, which are close to the throat, are provided with arc chamfers; the second mounting plate is of a hollow structure and is of a willow-leaf-shaped structure.
Furthermore, the sound production unit adopts a neodymium magnetic high pitch driving head.
Furthermore, the neodymium magnetic high pitch driving head adopts a neodymium magnetic high pitch driving head with a throat pipe of 1 inch.
Furthermore, in the array structure formed by the plurality of sound generating devices, the distance between two transversely adjacent sound generating devices is 75-120mm, and the distance between two longitudinally adjacent sound generating devices is 120-150 mm.
Furthermore, the horn interface comprises an interface body and an interface supporting plate, the interface body is horizontally arranged in the interface supporting plate in a penetrating mode, one end of the interface body is connected with the sound outlet of the sound production unit, and the other end of the interface body is connected with the throat of the guided wave horn; the interface supporting plate is fixedly arranged on the array supporting plate.
Furthermore, the throat of the guided wave horn is of a circular structure, and the sound outlet of the guided wave horn is of a rectangular structure.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model provides a cluster sound wave launching device, which adopts the matching of a sound production unit and a guided wave horn to form a sound production device, realizes the compression and the amplification of sound waves by setting the guided wave horn, and realizes the change and the restraint of the sound wave propagation direction; the plurality of sound generating devices are arranged in an array form, so that point sound source signals are converted into plane sound source signals, the sound energy and the sound pressure are effectively ensured to be transmitted to the designated direction in a concentrated manner, the utilization efficiency of the sound energy is improved, and the pointing performance of the sound is optimized; the utility model discloses simple structure, small in size, compact structure, the total volume reduces by a wide margin in the product the inside of the same sound pressure level.
Further, the waveguide horn adopts the waveguide technology in the linear array sound box in the horizontal direction of larynx mouth to sound outlet, adopt and set up baffle subassembly in the horn body, separate the sound current guided wave inner chamber in the horn body for a plurality of sound current guided wave channels, the sound wave is in a plurality of sound current guided wave channels, after being compressed respectively, and restraint the direction of propagation simultaneously, realize enlargiing near sound outlet at last, the equidistance propagation of sound wave has been realized, the effectual whole wave ratio that reduces the radiation sound wave, show and reduce the phase distortion, and improve the sound pressure level, make the volume increase, and the distance of propagation is farther.
Furthermore, the lengths of the divided acoustic flow wave guide channels are equal, so that the horizontal directivity of a wave guide horn is wider, the vertical directivity is narrow and can be controlled, the equidistant propagation of sound waves is realized, the rectification ratio of radiated sound waves is effectively reduced, the phase distortion is obviously reduced, the sound pressure level is improved, the volume is increased, and the propagation distance is farther; meanwhile, the sound pressure and the sound energy are more effectively and uniformly distributed in the coverage area and the necessary height, the utilization efficiency of the sound energy is improved, and the sound directivity is optimized.
Furthermore, the main partition board adopts a rectangular mounting plate and an arc mounting plate which are symmetrically arranged, the arc mounting plate is utilized to realize focusing and orientation of sound flow, and the sound wave compression and the restraint and change of the propagation direction are improved.
Furthermore, one end of the first mounting plate, which is close to the throat, is provided with an arc chamfer, so that the effect of contraction and sound dispersion is realized at the throat; the second mounting plate is arranged to be a willow leaf-shaped structure, the willow leaf-shaped structure forms a roundabout return D between the third bifurcation C and the sound outlet, the sound flow is compressed before the roundabout position D, the sound flow is amplified after the roundabout return D, and the sound energy utilization efficiency is effectively improved.
Furthermore, adopt neodymium magnetism high pitch driving head, this driving head drive unit adopts the neodymium magnet that magnetic density is high, and neodymium magnet's high pitch driving head sensitivity is higher simultaneously, and the volume is littleer.
Furthermore, the sound production unit adopts a throat pipe 1 inch neodymium magnetic high pitch driving head, and as the high sound intensity strong sound wave frequency interval is concentrated between 1kHz and 5kHz, the sensitivity is highest in the frequency interval of the strong sound wave, the requirement of equipment can be met, and the volume and the weight are smaller than those of the sound production unit selected conventionally, so that the total volume and the weight are reduced after the array installation is convenient to form.
The utility model discloses a sound wave emitter tied in a bundle, through adopting the sound generating unit to match the waveguide bugle, constitute sound generating mechanism, adopt two sound generating mechanism vertical arrangement, make the point sound source signal become the line sound source signal, later with two sound generating mechanism horizontal arrays of multiunit vertical arrangement, constitute sound generating array, make the line sound source signal become the face sound source signal; because the amplitude of the surface sound source signal does not change along with the distance, the directivity of sound transmission is effectively improved, the effect of high bundling is achieved, the size of the device is effectively reduced, and the sound pressure of the device is improved; under the condition of the same sound pressure, the volume can be reduced to less than half of the existing product, the beam-collecting angle can reach about +/-5 degrees, and the directivity of the strong sound equipment is greatly improved; the utility model discloses reduce the volume of device under the unchangeable circumstances of effective maintenance acoustic pressure to possess better directive property, with satisfy various demands in the reality.
Drawings
Fig. 1 is a front view of the cluster acoustic wave emitting device according to the present invention;
fig. 2 is a side view of the cluster acoustic wave emitting device according to the present invention;
fig. 3 is a top view of the cluster acoustic wave emitting device according to the present invention;
fig. 4 is a rear view of the cluster acoustic wave emitting device according to the present invention;
fig. 5 is a schematic view of an assembly structure of a sounding unit and a waveguide horn in the cluster acoustic wave transmitter of the present invention;
fig. 6 is a sectional view of a waveguide horn in the cluster acoustic wave transmitter according to the present invention;
fig. 7 is the SPL curve of neodymium magnetic high pitch driving head with throat of 1 inch in the cluster acoustic wave emitting device.
The sound generating device comprises a sound generating device 1, an array supporting plate 2, a sound generating unit 11, a wave guide horn 12 and a horn 13 interface; a horn body No. 111, a supporting component 112; 1121 main partition, 1122 partition; 131 interface body, 132 interface support plate.
Detailed Description
In order to make the technical problem solved by the present invention, the technical solution and the beneficial effects are more clearly understood, and the following geometric drawings and embodiments are used for further detailed description of the present invention. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
As shown in fig. 1-6, the utility model provides a cluster sound wave emitting device, which comprises a plurality of sound emitting devices 1 and an array support plate 2, wherein the plurality of sound emitting devices 1 are arranged on the array support plate 2 in an array form; the sound generating device 1 comprises a sound generating unit 11 and a guided wave horn 12, wherein the sound generating unit 11 is arranged on one side of the array support plate 2, and the guided wave horn 12 is arranged on the other side of the array support plate 2; the sound generating unit 11 is connected with the guided wave horn 12 through the horn interface 13, one end of the horn interface 13 is connected with a sound outlet of the sound generating unit 11, and the other end of the horn interface is connected with a throat of the guided wave horn 12.
The sound production unit 11 adopts a neodymium magnetic high-pitch driving head with a throat pipe of 1 inch, and the high-sound-intensity strong sound wave frequency interval of the neodymium magnetic high-pitch driving head with the throat pipe of 1 inch is concentrated between 1kHz and 5 kHz; as shown in fig. 7, fig. 7 is an SPL curve of a 1 inch neodymium magnetic high pitch throat pipe driver, and as can be seen from fig. 7, the 1 inch neodymium magnetic high pitch throat pipe driver has the advantages that in a frequency range of a strong sound wave, human ears with the highest sensitivity react most sensitively to signals in the frequency range of 1kHz to 5kHz, and signals in the frequency range have high directivity and are easy to transmit in a bundle, so that high-frequency dispelling signals are generated by the high pitch throat pipe driver with the size, and are amplified to a degree which is unacceptable to human ears and more than about 140dB after being amplified, so as to achieve the purpose of dispelling people; meanwhile, the volume and the weight of the neodymium magnetic high pitch driving head with the throat being 1 inch are smaller than those of the conventionally selected sounding units, so that the total volume and the weight are reduced after the array is conveniently formed and installed.
The guided-wave horn 12 comprises two horn bodies 111 and a partition plate assembly 112, the two horn bodies 111 are symmetrically spliced to form an acoustic flow guided-wave inner cavity, the acoustic flow guided-wave inner cavity penetrates through the front end and the rear end of the horn body 111, a sound outlet is formed at the front end of the horn body 111, and a throat is formed at the rear end of the horn body 111; the inner cavity of the acoustic flow guided wave becomes gradually larger from one end of the throat to one end of the sound outlet;
the baffle plate assembly 112 is arranged in the acoustic flow guided wave inner cavity and equally divides the acoustic flow guided wave inner cavity into a plurality of acoustic flow guided wave channels; the baffle plate component 112 is provided with a first branch position A, a second branch position B and a third branch position C in sequence from the throat to the sound outlet along the inner cavity of the acoustic flow guided wave; a main sound flow channel is formed from the throat to the first branch point A;
the partition plate assembly 112 includes a main partition plate 1121 and two partition plates 1122, the two partition plates 1122 are symmetrically disposed on two sides of the main partition plate 1121, the two partition plates 1122 extend from the first branch position a to the sound outlet, and the two partition plates 1122 divide the acoustic flow wave guide cavity from the first branch position a to the second branch position B into three equal parts to form three first acoustic flow wave guide channels; the main partition plate extends from the second bifurcation B to the third bifurcation C, and the main partition plate 1121 and the two partition plates 1122 divide the acoustic flow guided wave cavity at the second bifurcation B to the third bifurcation C into four equal parts to form four second acoustic flow guided wave channels; the two partition plates 1122 divide the inner cavity of the acoustic flow guided wave from the end of the main partition plate 1121 to the sound outlet into three equal parts, so as to form three third acoustic flow guided wave channels.
The length sizes of the three first acoustic flow wave guide channels are the same, and the width sizes of the first acoustic flow wave guide channels at the same length position are the same; the length sizes of the four second acoustic flow guide channels are the same, and the width sizes of the second acoustic flow guide channels at the same length position are the same; the three third acoustic flow guided wave channels have the same length dimension, and the width dimension of each third acoustic flow guided wave channel at the same length position is the same.
The utility model discloses in, the throat of guided wave bugle 12 is circular structure, and the sound outlet of guided wave bugle 12 is the rectangle structure.
The interior of the main partition board is of a hollow structure, and the hollow structure is arranged in a manner that two ends are small and the middle is large; the main partition plate comprises two rectangular mounting plates and two arc-shaped mounting plates, and the two rectangular mounting plates and the two arc-shaped mounting plates are encircled to form a hollow structure; the two rectangular mounting plates are arranged at one end close to the throat opening, and the two arc plates are arranged at one end close to the sound outlet; two rectangle mounting panels and two arc mounting panels all set up along the axis symmetry of acoustic current guided wave inner chamber, and the centre of a circle of two arc mounting panels deviates from the setting.
The partition plate comprises a first mounting plate and a second mounting plate, the first mounting plate is arranged close to one end of the throat, and the second mounting plate is arranged close to one side of the sound outlet; the first mounting plates of the two partition plates are arranged on two sides of the main partition plate in a surrounding manner, and one ends of the first mounting plates, which are close to the throat, are provided with arc chamfers; the second mounting plate is of a hollow structure and is of a willow-leaf-shaped structure; the willow-leaf-shaped structure forms a roundabout position D between the third bifurcation position C and the sound outlet, the sound wave is compressed before the roundabout position D, and is amplified after passing through the roundabout position D, so that the directivity of the sound wave is effectively improved.
The horn interface 13 comprises an interface body 131 and an interface supporting plate 132, the interface body 131 is horizontally arranged in the interface supporting plate 132 in a penetrating way, one end of the interface body 131 is connected with a sound outlet of the sound generating unit 11, and the other end is connected with a throat of the guided wave horn 12; the interface support plate 132 is fixedly mounted on the array support plate 2; preferably, the interface body 131 is in threaded connection with the sound outlet of the sound generating unit 11.
The utility model discloses a sound wave emitter tied in a bundle, through adopting the sound generating unit to match the waveguide bugle, constitute sound generating mechanism, adopt two sound generating mechanism vertical arrangement, make the point sound source signal become the line sound source signal, later with two sound generating mechanism horizontal arrays of multiunit vertical arrangement, constitute sound generating array, make the line sound source signal become the face sound source signal; because the amplitude of the surface sound source signal does not change along with the distance, the directivity of sound transmission is effectively improved, the effect of high bundling is achieved, the size of the device is effectively reduced, and the sound pressure of the device is improved; under the condition of the same sound pressure, the volume can be reduced to less than half of the existing product, the beam-collecting angle can reach about +/-5 degrees, and the directivity of the strong sound equipment is greatly improved; the utility model discloses reduce the volume of device under the unchangeable circumstances of effective maintenance acoustic pressure to possess better directive property, with satisfy various demands in the reality.
Examples
The embodiment provides a cluster sound wave emitting device, which comprises 12 sound emitting devices and an array supporting plate, wherein the 12 sound emitting devices are arranged on the array supporting plate 2 in an array form; wherein 6 sound generating devices are transversely and uniformly arranged, and the transverse distance D between two adjacent sound generating devices is 75-120 mm; longitudinally arranging 2 sound generating devices, wherein the longitudinal distance between every two adjacent sound generating devices is 120-150 mm; two sounding devices are longitudinally arranged to change point sound source signals into line sound source signals, and then a plurality of groups of two sounding devices which are longitudinally arranged are transversely arrayed to form sounding arrays to change the line sound source signals into plane sound source signals; the cluster sound wave emitting device is composed of 12 sound emitting devices, and under the combined action of the array, the cluster sound wave emitting device emits sound waves in a cluster mode of plane waves.
The sound production device comprises a sound production unit and a guided wave horn, the sound production unit is arranged on one side of the array supporting plate, and the guided wave horn is arranged on the other side of the array supporting plate; the sounding unit is connected with the guided wave horn through the horn interface, one end of the horn interface is connected with a sound outlet of the sounding unit, and the other end of the horn interface is connected with a throat of the guided wave horn. The sound production unit adopts a throat pipe 1 inch neodymium magnetic high pitch driving head.
The guided wave horn comprises two symmetrical horn bodies, each horn body comprises a main body part and partition plates arranged inside the main body, and the two partition plates are connected with each other in a butt joint mode and equally divide an acoustic flow guided wave inner cavity into a plurality of acoustic flow guided wave channels. The inner cavity penetrates through the front end and the rear end of the horn body, a sound outlet is formed at the front end of the horn body, and a throat is formed at the rear end of the horn body; the diameter of the throat gradually increases from one end of the throat to one end of the sound outlet; the total length of the acoustic flow guided wave channels from the throat to the sound outlet is the same, and the width of each acoustic flow guided wave channel at the position with the same length is also the same; therefore, the horizontal directivity of the guided wave horn is wide, the vertical directivity is narrow and can be controlled. Meanwhile, the sound pressure and the sound energy are more effectively and uniformly distributed in the coverage area and the necessary height, the utilization efficiency of the sound energy is improved, and the sound directivity is optimized; the guided wave bugle small in size and simple and convenient in structure are convenient for constitute array bugle and further increase public address acoustic pressure.
The acoustic flow guided wave inner cavity is sequentially provided with a first branch position A, a second branch position B and a third branch position C from the throat to the sound outlet, and a main acoustic flow channel is formed from the throat to the first branch position A; the partition plate group comprises a main partition plate and two partition plates; the two partition plates are respectively arranged on two sides of the main partition plate, wherein the two partition plates extend from the first bifurcation position A to the sound outlet, and divide an acoustic flow guided wave inner cavity from the first bifurcation position A to the second bifurcation position B into three equal parts to form three first acoustic flow waveguide channels; the main partition plate extends from the second bifurcation position B to a third bifurcation position C, and the main partition plate and the two partition plates divide the acoustic flow guided wave inner cavity from the second bifurcation position B to the third bifurcation position C into four equal parts to form four second acoustic flow guided channels; two sound flow cavities formed by the main partition plate and the partition plate converge at a third bifurcation C, are compressed and then are amplified by a bugle, the sound flow passes through a circuitous return D to a sound outlet, the sound flow cavities are divided into three cavities with the same size, the total length from the sound outlet is the same, and the widths of all the subchannels at the same length are the same.
The sound wave emitted by the high pitch driving head at the throat is close to a point sound source (spherical wave), the directivity is not strong, if the propagation direction is not limited by adding a waveguide horn, the sound wave energy is quickly attenuated after the long-distance diffusion, and the requirement of the long-distance propagation cannot be met. The sound waves are compressed and restrained by four groups of sound flow waveguide channels in the waveguide bugle, so that the sound waves are transmitted according to the restrained transmission direction, and because the length and the sectional area of each sound flow channel are the same, the equidistant transmission of the sound waves is realized, the phases of the sound waves are the same, the sound waves are the same sound source, and the frequencies are the same, therefore, the superposition of coherent waves is obtained at the bugle sound outlet, and linear sound waves (cylindrical waves) are superposed at the sound outlet, so that the point sound wave transmission is changed into the linear sound wave transmission.
The calculation formula of the sound wave propagation distance and the sound wave intensity attenuation of the point sound source and the line sound source is as follows:
the point sound source sound wave intensity attenuation calculation formula is as follows: delta Ad＝20㏒(r2/r1)
In the equation (delta A)dThe attenuation intensity is expressed as r1 and r2, which are the distances from different two points to a point sound source;
the linear sound source sound wave intensity attenuation calculation formula is as follows: delta Ad1＝10㏒(l2/l1)
In the equation (delta A)d1The attenuation intensity is expressed as l1 and l2, the distances from different two points to a point sound source are obtained;
therefore, the point sound source sound wave propagation distance is doubled, the intensity is attenuated by 6dB, the line sound source sound wave propagation distance is doubled, and the intensity is attenuated by 3dB, so that the waveguide bugle effectively improves the directivity of sound wave propagation.
In the embodiment, the guide wave horn adopts a high sound pressure directional amplification guide horn with a specific shape, and can compress and amplify sound waves and also can restrict and change the propagation direction; the length of the horn and the size of the opening influence the lowest frequency cut-off point which can be generated by the guided wave horn, and the acoustic characteristics of the guided wave horn are closely related; the sound source has the functions of directionally transmitting sound, changing frequency and changing sound pressure of specific frequency.
In conclusion, the high-sound-pressure directional amplification waveguide horn adopts the waveguide technology in the linear array sound box in the horizontal direction from the throat to the sound outlet, the inner cavity is gradually and equally divided from the throat to the sound outlet by arranging the partition plate assembly, and finally a plurality of sub-channels are formed, and the lengths of the sub-channels are equal, so that the equidistant transmission of sound waves is realized, the rectification ratio of radiated sound waves is effectively reduced, the phase distortion is obviously reduced, the sound pressure level is improved, the volume is increased, and the transmission distance is farther. In addition, the guided wave bugle is small in size and simple in structure, and the array is convenient to form so as to further increase the sound pressure of sound amplification.
In the embodiment, the array sound production device is formed by adopting the sound production units and the horn units, so that sound pressure and sound energy are more effectively concentrated in one direction for propagation, the sound energy utilization efficiency is improved, and the sound directivity is optimized; simple structure, and small in size for the sound generating mechanism compact structure after the array is constituteed, the total volume reduces by a wide margin in the product of the same sound pressure level.
The above description is only illustrative of the preferred embodiments of the present invention, and any variations, modifications, decorations, etc. may be made without departing from the principle of the present invention, and these variations, modifications, decorations, etc. are all considered to be within the scope of the present invention.
Claims (10)
1. A cluster sound wave emitting device is characterized by comprising a plurality of sound emitting devices (1) and an array support plate (2), wherein the plurality of sound emitting devices (1) are arranged on the array support plate (2) in an array form; the sound production device (1) comprises a sound production unit (11) and a guided wave horn (12), the sound production unit (11) is arranged on one side of the array support plate (2), and the guided wave horn (12) is arranged on the other side of the array support plate (2); the sounding unit (11) is connected with the guided wave horn (12) through a horn interface (13), one end of the horn interface (13) is connected with a sound outlet of the sounding unit (11), and the other end of the horn interface is connected with a throat of the guided wave horn (12).
2. The cluster sound wave transmitting device according to claim 1, wherein the guided-wave horn (12) comprises two horn bodies (111) and a partition plate assembly (112), the two horn bodies (111) are symmetrically spliced to form an acoustic flow guided-wave cavity, the acoustic flow guided-wave cavity penetrates through the front end and the rear end of the horn body (111), a sound outlet is formed at the front end of the horn body (111), and a throat is formed at the rear end of the horn body (111); the inner cavity of the acoustic flow guided wave becomes gradually larger from one end of the throat to one end of the sound outlet;
the baffle plate component (112) is arranged in the acoustic flow guided wave inner cavity and equally divides the acoustic flow guided wave inner cavity into a plurality of acoustic flow guided wave channels; the baffle plate component (112) is sequentially provided with a first branch position A, a second branch position B and a third branch position C from a throat to a sound outlet along the inner cavity of the acoustic flow guided wave; a main acoustic flow guided wave channel is formed from the throat to the first branch point A;
the partition plate assembly (112) comprises a main partition plate and two partition plates, the two partition plates are symmetrically arranged on two sides of the main partition plate, the two partition plates extend from the first bifurcation position A to the sound outlet, and the two partition plates divide an acoustic flow guided wave inner cavity from the first bifurcation position A to the second bifurcation position B into three equal parts to form three first acoustic flow waveguide channels; the main partition board extends from the second bifurcation position B to a third bifurcation position C, and the main partition board and the two partition boards divide an acoustic flow guided wave inner cavity from the second bifurcation position B to the third bifurcation position C into four equal parts to form four second acoustic flow guided channels; the two partition plates divide the sound flow guided wave inner cavity from the tail end of the main partition plate to the sound outlet into three equal parts to form three third sound flow guided wave channels.
3. The coherent acoustic wave transmitter according to claim 2, wherein the three first acoustic flow waveguide channels have the same length dimension, and the width dimension of each first acoustic flow waveguide channel at the same length position is the same; the length dimensions of the four second sound flow waveguide channels are the same, and the width dimensions of each second sound flow waveguide channel at the same length position are the same; the three third acoustic flow waveguide channels have the same length dimension, and the width dimension of each third acoustic flow waveguide channel at the same length position is the same.
4. The coherent acoustic wave transmitter according to claim 2, wherein the main partition has a hollow structure inside, and the hollow structure is arranged with two small ends and a large middle;
the main partition plate comprises two rectangular mounting plates and two arc-shaped mounting plates, and the two rectangular mounting plates and the two arc-shaped mounting plates are encircled to form a hollow structure; the two rectangular mounting plates are arranged at one end close to the throat opening, and the two arc plates are arranged at one end close to the sound outlet; two rectangle mounting panels and two arc mounting panels all set up along the axis symmetry of acoustic current guided wave inner chamber, and the centre of a circle of two arc mounting panels deviates from the setting.
5. The bundled acoustic wave transmitter as claimed in claim 2, wherein the partition plate includes a first mounting plate and a second mounting plate, the first mounting plate being disposed near one end of the throat, the second mounting plate being disposed near one side of the sound outlet; the first mounting plates of the two partition plates are arranged on two sides of the main partition plate in a surrounding manner, and one ends of the first mounting plates, which are close to the throat, are provided with arc chamfers; the second mounting plate is of a hollow structure and is of a willow-leaf-shaped structure.
6. A bundled acoustic wave transmitter as claimed in claim 1, characterised in that the sound generating unit (11) is a neodymium magnetic tweeter driver.
7. The bundled acoustic wave transmitter as claimed in claim 6, wherein the neodymium magnetic high pitch driver is a neodymium magnetic high pitch driver with a throat of 1 inch.
8. The bundled acoustic wave transmitter as claimed in claim 1, wherein the plurality of acoustic devices (1) form an array structure, the distance between two adjacent acoustic devices (1) in the transverse direction is 75-120mm, and the distance between two adjacent acoustic devices (1) in the longitudinal direction is 120-150 mm.
9. The cluster sound wave transmitting device according to claim 1, wherein the horn interface (13) comprises an interface body (131) and an interface support plate (132), the interface body (131) is horizontally arranged in the interface support plate (132), one end of the interface body (131) is connected with the sound outlet of the sound generating unit (11), and the other end is connected with the throat of the guided-wave horn (12); the interface support plate (132) is fixedly mounted on the array support plate (2).
10. The coherent acoustic wave transmitter device according to claim 2, wherein the throat of the guided wave horn (12) has a circular structure, and the sound outlet of the guided wave horn (12) has a rectangular structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020704204.4U CN212086471U (en) | 2020-04-30 | 2020-04-30 | Cluster sound wave transmitting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020704204.4U CN212086471U (en) | 2020-04-30 | 2020-04-30 | Cluster sound wave transmitting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212086471U true CN212086471U (en) | 2020-12-04 |
Family
ID=73588232
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020704204.4U Active CN212086471U (en) | 2020-04-30 | 2020-04-30 | Cluster sound wave transmitting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212086471U (en) |
-
2020
- 2020-04-30 CN CN202020704204.4U patent/CN212086471U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US7236606B2 (en) | Sound system having a HF horn coaxially aligned in the mouth of a midrange horn | |
| US4969196A (en) | Speaker and horn array | |
| US4628528A (en) | Pressure wave transducing | |
| CA2477928C (en) | Loudspeaker with shaped sound field | |
| US4553628A (en) | Speaker system | |
| US20060285712A1 (en) | Coaxial mid-frequency and high-frequency loudspeaker | |
| US6834113B1 (en) | Loudspeaker system | |
| US4313032A (en) | Folded horn loudspeaker system | |
| CN102656902A (en) | Omnidirectional speaker | |
| CN101536539A (en) | Speaker system | |
| US4593784A (en) | Loudspeaker enclosure | |
| JP2013538509A (en) | Active and passive directional acoustic radiation | |
| US8249268B2 (en) | Woofer-less and enclosure-less loudspeaker system | |
| US3842203A (en) | Public address system with horn speakers arrayed around and facing inward toward a common point | |
| CN105052172A (en) | Acoustic horn manifold | |
| CN212086471U (en) | Cluster sound wave transmitting device | |
| CN115938337B (en) | Ultrasonic transducer array, directional sounding control method and directional sounding device | |
| CN217063985U (en) | High-frequency constant-beam-width point sound source array waveguide horn | |
| CN101111096A (en) | Combined sound frequency orienting ultrasound wave loud-speaker system | |
| CN112887874A (en) | Strong sound system based on full-band sound wave control | |
| CN112822611B (en) | Coaxial composite loudspeaker applied to linear array | |
| CN208597161U (en) | High sound pressure orients the waveguide bugle that amplifies | |
| KR20100091006A (en) | Acoustic projection system | |
| CN214756872U (en) | Integrated double-channel linear horn | |
| KR200290895Y1 (en) | Stereo unit for mobile communitcation terminal |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |