Sound production device

Abstract

The sound production device provided by the utility model comprises an air compressor, a whistle sound production assembly, a sound wave emission assembly and a sound wave synthesis assembly, sound waves formed by the whistle sounding assembly are directionally emitted into a synthesis cover of the sound wave synthesis assembly through a first emission cover of the sound wave emission assembly; the number of the whistle sounding assemblies is at least two, the number of the sound wave emission assemblies is at least two, and the first emission covers of the sound wave emission assemblies are in one-to-one correspondence with the diffusion pipes of the whistle emission assemblies, so that sound waves emitted by the more than two first emission covers collide in the synthesis cover and are synthesized into sound waves with higher strength, and the sound wave strength is enhanced; the second emission cover of the sound wave synthesis assembly emits the sound waves synthesized by the synthesis cover, so that the sound waves with higher strength are obtained.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of sound wave emission, and more particularly to a sound emitting device. BACKGROUND

[0002] The sound wave emitting system is based on the principle of sound wave generation, that is, when an object vibrates, it will propagate wave in the surrounding medium (such as air, water, etc.), forming a sound wave. In the sound wave emitting system, various sound sources are usually used to generate sound waves, such as loudspeakers, ultrasonic transducers, etc.

[0003] The above sound wave emitting systems all need stable working frequency and matched circuit parameters to work efficiently, but due to the instability of electrical signals, the stability of the above sound wave emitting systems is poor.

[0004] In summary, how to improve the sound wave generation intensity, increase the sound field range, and improve the stability of sound wave emission is a problem that needs to be solved by the technical personnel in the field at present. CONTENT OF THE INVENTION

[0005] Therefore, the purpose of the present application is to provide a sound emitting device to improve the sound wave generation intensity, increase the sound field range, and improve the stability of sound wave emission.

[0006] In order to achieve the above purpose, the present application provides the following technical scheme:

[0007] A sound emitting device, comprising: an air compressor, a spin whistle sound emitting assembly, a sound wave emitting assembly, a sound wave synthesizing assembly; wherein the spin whistle sound emitting assembly is at least two, the sound wave emitting assembly is at least two, and the spin whistle sound emitting assembly and the sound wave emitting assembly one-to-one correspond; the spin whistle sound emitting assembly comprises an inlet pipe, a vortex generating part, a resonance cavity, and a diffusion pipe, the inlet pipe, the vortex generating part, the resonance cavity, and the diffusion pipe are connected in sequence along the same axis; the exhaust port of the air compressor is connected to the inlet pipe, and the airflow discharged by the air compressor forms a sound wave after passing through the spin whistle sound emitting assembly; the sound wave emitting assembly comprises a first emitting cover, the first emitting cover and the diffusion pipe one-to-one correspond, and the inlet end of the first emitting cover is connected to the corresponding diffusion pipe for emitting the sound wave; the sound wave synthesizing assembly comprises a synthesizing cover and a second emitting cover, the synthesizing cover is connected to the outlet end of all the first emitting covers, the sound waves emitted by all the first emitting covers are synthesized into a synthesized sound wave in the synthesizing cover, and the second emitting cover is used for emitting the synthesized sound wave.

[0008] In some embodiments, the outlet end of the first radome is sealed to the inlet end of the synthesis radome; the second radome is gradually expanding from the inlet end to the outlet end; the outlet end of the synthesis radome is sealed to the inlet end of the second radome; or, the synthesis radome and the second radome are an integral structure.

[0009] In some embodiments, there are two of each of the whistle-generating component and the sound wave emitting component, and there are two of each of the first emitting cover and the diffuser tube, with the axes of the two first emitting covers being collinear;

[0010] Alternatively, there may be three or more of the whistle-generating components and the sound wave emitting components, and there may be three or more of the first emitting hoods and the diffuser tubes, with the axes of all the first emitting hoods intersecting at a single point.

[0011] In some embodiments, the acoustic wave emitting assembly further includes a base and a support frame; wherein the base is used to support the support frame and the first emitting cover; the support frame is disposed on the base and connected to the first emitting cover for supporting the first emitting cover.

[0012] In some embodiments, the whistle-generating assembly further includes a housing, wherein the inlet pipe, the eddy current generating section, the resonant cavity, and the diffuser pipe are all located inside the housing;

[0013] The inlet pipe includes: a large-diameter section, the inlet end of which is connected to the exhaust port of the air compressor; a small-diameter section, the outlet end of which is connected to the vortex generating part; and a tapering section, which connects the outlet end of the large-diameter section and the inlet end of the small-diameter section, and the tapering section tapers from the large-diameter section to the small-diameter section; wherein the large-diameter section, the tapering section, and the small-diameter section are distributed sequentially along the same axis.

[0014] In some embodiments, the vortex generating unit includes a vortex cavity, the inlet end of the vortex cavity is connected to the outlet end of the small-diameter section, and the outlet end of the vortex cavity is connected to the resonant cavity; a guide vane is disposed inside the vortex cavity, the guide vane is located on the inner wall of the vortex cavity, the guide vane is distributed along the axial direction of the vortex cavity, and the airflow forms a vortex after passing through the vortex cavity;

[0015] The guide vanes are multiple in number, and the multiple guide vanes are distributed sequentially along the axial direction of the vortex cavity, and the multiple guide vanes are distributed along a spiral line; or, the guide vanes are integral and spiral in shape.

[0016] In some embodiments, the resonant cavity includes a resonant cavity body, the inlet end of the resonant cavity body is connected to the outlet end of the vortex cavity, and the outlet end of the resonant cavity body is connected to the inlet end of the diffuser tube; the vortex resonates in the resonant cavity to form a sound wave; the resonant cavity body is provided with a reflective layer or reflective structure for reflecting the vortex.

[0017] In some embodiments, the diffuser is a gradually expanding diffuser that gradually expands from its inlet end to its outlet end, and the outlet end of the diffuser corresponds to the acoustic wave emitting component.

[0018] In some embodiments, the air compressor is connected to the whistle-producing assembly via an air supply pipe, and the air supply pipe corresponds one-to-one with the inlet pipe.

[0019] In some embodiments, the sound-generating device further includes: a sound wave sensor for detecting the intensity of the synthesized sound wave; a control system, wherein the air compressor and the sound wave sensor are electrically connected to the control system; and a power supply component, wherein the control system, the air compressor, and the sound wave sensor are all electrically connected to the power supply component.

[0020] The sound-generating device provided in this application includes an air compressor, a whistle sound-generating component, a sound wave emitting component, and a sound wave synthesizing component. The airflow generated by the air compressor passes through the whistle sound-generating component to form sound waves. The sound waves generated by the whistle sound-generating component are directionally emitted through the first emitting hood of the sound wave emitting component into the synthesizing hood of the sound wave synthesizing component. There are at least two whistle sound-generating components and at least two sound wave emitting components. The first emitting hoods of the sound wave emitting components and the diffusers of the whistle sound-generating components correspond one-to-one. Thus, the sound waves emitted by two or more first emitting hoods collide within the synthesizing hood and are synthesized into a higher-intensity sound wave, enhancing the sound wave intensity. The second emitting hood of the sound wave synthesizing component emits the sound waves synthesized by the synthesizing hood, thereby obtaining a higher-intensity sound wave.

[0021] In the aforementioned sound-generating device, the airflow generated by the air compressor passes through the whistle-generating component to form sound waves. Each part of the whistle-generating component is only a mechanical structure, so that the sound wave formation process does not require a matching circuit, which can form more stable sound waves and improve the sound generation stability. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this application. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the overall structure of the sound-generating device provided in the embodiments of this application;

[0024] Figure 2 This is a schematic diagram of the whistle sound-generating component structure provided in an embodiment of this application;

[0025] Figure 3 for Figure 2 A schematic diagram of the inlet tube in the whistle sound-producing assembly;

[0026] Figure 4 for Figure 2 A schematic diagram of the vortex generating part in the whistle sound-producing component.

[0027] Explanation of reference numerals in the attached figures:

[0028] 1 represents the air compressor, and 10 represents the air supply pipe;

[0029] 2 is the whistle sound-generating component, 20 is the shell, 21 is the inlet pipe, 210 is the large diameter section, 211 is the tapering section, 212 is the small diameter section, 22 is the vortex generating part, 220 is the vortex cavity, 221 is the guide vane, 23 is the resonant cavity, and 24 is the diffuser.

[0030] 3 is the acoustic wave emitting component, 30 is the base, 31 is the support frame, and 32 is the first emitting cover;

[0031] 4 is the acoustic wave synthesis component, 40 is the synthesis cover, 41 is the second emission cover, and 42 is the acoustic wave sensor;

[0032] 5 represents the control system;

[0033] 6 represents the power supply components. Detailed Implementation

[0034] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0035] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. The terminology used in the following embodiments is for the purpose of describing specific embodiments only and is not intended to be a limitation of this application. As used in the specification and appended claims of this application, the singular expressions "a," "an," "the," "the," "the," and "this" are intended to also include expressions such as "one or more," unless the context clearly indicates otherwise.

[0036] References to "one embodiment" or "some embodiments" as described in this specification mean that one or more embodiments of this application include a specific feature, structure, or characteristic described in connection with that embodiment. Therefore, the phrases "in one embodiment," "in some embodiments," "in other embodiments," "in still other embodiments," etc., appearing in different parts of this specification do not necessarily refer to the same embodiment, but rather mean "one or more, but not all, embodiments," unless otherwise specifically emphasized. The terms "comprising," "including," "having," and variations thereof mean "including but not limited to," unless otherwise specifically emphasized.

[0037] The "multiple" mentioned in the embodiments of this application refers to two or more. It should be noted that in the description of the embodiments of this application, terms such as "first" and "second" are used only for the purpose of distinguishing descriptions and should not be construed as indicating or implying relative importance, nor should they be construed as indicating or implying order.

[0038] The terms "parallel" and "perpendicular" used in this application refer to "basically parallel" and "basically perpendicular" in practical operation. "Basically parallel" can be understood as parallelism with a certain degree of error, and similarly, "basically perpendicular" can be understood as perpendicularity with a certain degree of error.

[0039] like Figures 1-4 As shown, the sound-generating device provided in this application embodiment includes an air compressor 1, a whistle sound-generating component 2, a sound wave emitting component 3, and a sound wave synthesizing component 4. The airflow generated by the air compressor 1 forms a sound wave through the whistle sound-generating component 2. The sound wave emitting component 3 emits the sound wave formed by the whistle sound-generating component 2 into the sound wave synthesizing component 4. The sound wave synthesizing component 4 emits the synthesized sound wave, thereby increasing the intensity of the sound wave.

[0040] There are at least two whistle-generating components 2 and sound wave-emitting components 3, and the whistle-generating components 2 and sound wave-emitting components 3 correspond one-to-one. In this way, at least two sound waves can be emitted into the sound wave synthesis component 4 through the corresponding sound wave-emitting component 3, so that at least two sound waves can collide in the sound wave synthesis component 4 to synthesize a sound wave with higher intensity and enhance the sound wave intensity.

[0041] The whistle generating assembly 2 includes an inlet pipe 21, an eddy current generating section 22, a resonant cavity 23, and a diffuser pipe 24, such as Figure 2As shown, the inlet pipe 21, vortex generating part 22, resonant cavity 23, and diffuser pipe 24 are sequentially connected along the same axis. The exhaust port of the air compressor 1 is connected to the inlet end of the inlet pipe 21, so that the high-speed airflow discharged from the air compressor 1 enters the whistle sound generating assembly 2 through the inlet pipe 21, and forms a sound wave after passing through the vortex generating part 22 and the resonant cavity 23 in sequence. In this embodiment, the airflow forms a sound wave through the whistle sound generating assembly 2. Each part of the whistle sound generating assembly 2 is only a mechanical structure, so that the sound wave formation process does not require a matching circuit, which can form a more stable sound wave and improve the stability of the sound wave generation.

[0042] To increase the intensity of sound waves, such as Figure 2 As shown, the resonant cavity 23 is connected to the diffuser tube 24, which diffuses the sound waves generated by the resonant cavity 23, thereby increasing the intensity of the sound waves.

[0043] It should be noted that the whistle sound-producing component 2 also includes a housing 20, such as Figure 2 As shown, the inlet pipe 21, the eddy current generating part 22, the resonant cavity 23, and the diffuser pipe 24 are all located inside the housing 20. The housing 20 provides protection for the inlet pipe 21, the eddy current generating part 22, the resonant cavity 23, and the diffuser pipe 24, further ensuring the stability of the sound wave formation process.

[0044] In practice, the air compressor 1 is connected to the inlet pipe 21 of the whistle sound-producing component 2 through the air supply pipe 10. An air compressor 1 has multiple exhaust ports and can be connected to multiple air supply pipes 10 at the same time. The air supply pipes 10 and the inlet pipes 21 correspond one-to-one so that the airflow entering multiple inlet pipes 21 is consistent, which facilitates the formation of sound waves with the same or similar frequencies. In this way, multiple sound waves with the same or similar frequencies can be synthesized into a more stable sound wave. Furthermore, the airflow discharged from the air compressor 1 is transmitted through the air supply pipe 10, ensuring the stability of the airflow transmission.

[0045] like Figure 1 As shown, the sound wave emitting component 3 includes a first emitting cover 32, and the first emitting cover 32 and the diffuser tube 24 correspond one-to-one. The inlet end of the first emitting cover 32 is connected to the corresponding diffuser tube 24 for emitting the sound waves generated by the corresponding whistle sound generating component 2.

[0046] In order to further enhance the intensity of sound wave emission, such as Figure 1 As shown, the first emitting shroud 32 is gradually expanding from its inlet end to its outlet end, which enhances the intensity of the sound waves emitted by the first emitting shroud 32. Secondly, the first emitting shroud 32 has a certain length along its axial direction, so that the sound waves can diffuse along its axial direction during the process of passing through the first emitting shroud 32, so that the first emitting shroud 32 can emit sound waves in a directional manner. The directional emission of multiple sound waves makes the synthesis range of multiple sound waves more focused, further increasing the intensity of the sound emission.

[0047] To facilitate the support of the first launch shield 32, such as Figure 1 As shown, the acoustic wave emitting assembly 3 also includes a base 30 and a support frame 31. The support frame 31 is provided on the base 30. The support frame 31 is connected to the first emitting cover 32 to support the first emitting cover 32 so that the first emitting cover 32 can be stably maintained in the required position so that the first emitting cover 32 can stably emit acoustic waves.

[0048] like Figure 1 As shown, the sound wave synthesis component 4 includes a synthesis hood 40 and a second emission hood 41. The synthesis hood 40 is connected to the outlet end of all the first emission hoods 32 so that the sound waves emitted by all the first emission hoods 32 are synthesized into a synthesized sound wave in the synthesis hood 40. The synthesized sound wave is emitted through the second emission hood 41, thereby obtaining a sound wave with higher intensity.

[0049] In order to reduce the loss of sound wave energy during the process of the first emitting cover 32 emitting sound waves to the synthesizing cover 40, the outlet end of the first emitting cover 32 is sealed to the inlet end of the synthesizing cover 40, thereby reducing the loss of sound wave energy during the above process and ensuring the intensity of the synthesized sound wave.

[0050] To further increase the intensity of the sound, such as Figure 1 As shown, the second emitter 41 is gradually expanding from its inlet end to its outlet end, so that the synthesized sound wave can be gradually enhanced.

[0051] To further reduce energy loss during sound wave emission, the outlet end of the synthesizing cover 40 is sealed to the inlet end of the second transmitting cover 41, thereby reducing energy loss during the emission of synthesized sound waves through the second transmitting cover 41.

[0052] In some other embodiments, the synthesizing cover 40 and the second emitting cover 41 are an integral structure, which ensures the intensity of the synthesized sound wave.

[0053] In some embodiments, such as Figure 1 As shown, there are two whistle-generating components 2 and two sound wave emitting components 3, and two first emitting covers 32 and two diffusers 24. The axes of the two first emitting covers 32 are collinear, so that the propagation directions of the sound waves emitted from the two first emitting covers 32 are parallel, and the two first emitting covers 32 emit sound waves towards each other. The two whistle-generating components 2 can form two sound waves with the same or similar frequencies. In this way, the two sound waves with the same or similar frequencies can form a stable interference pattern in the meeting area, thereby making the synthesized sound wave more stable. Furthermore, the parallel propagation directions of the two sound waves make the energy distribution of the sound waves relatively concentrated, which can further enhance the intensity of the synthesized sound wave.

[0054] In other embodiments, there are three or more whistle-generating components 2 and sound wave emitting components 3, and there are three or more first emitting covers 32 and diffuser tubes 24. The axes of all the first emitting covers 32 are coplanar and intersect at a point, which increases the source of the synthesized sound wave and further enhances the intensity of the synthesized sound wave.

[0055] During the formation of sound waves, the airflow needs to reach a resonant frequency to resonate and form sound waves, requiring acceleration of the airflow discharged from air compressor 1. For example... Figure 3 As shown, the inlet pipe 21 includes a large-diameter section 210 and a small-diameter section 212. The inlet end of the large-diameter section 210 is connected to the exhaust port of the air compressor 1, and the outlet end of the small-diameter section 212 is connected to the vortex generating part, so that the airflow enters through the large-diameter section 210 and exits through the small-diameter section 212. The diameter of the large-diameter section 210 is larger than the diameter of the small-diameter section 212. In this way, the cross-sectional area through which the airflow passes from the large-diameter section 210 to the small-diameter section 212 is reduced. When the flow rate of the airflow through the inlet pipe 21 is a fixed value, the velocity of the airflow is increased, thus accelerating the airflow through the inlet pipe 21.

[0056] Because there is a certain difference in cross-sectional area between the large-diameter section 210 and the small-diameter section 212, in order to reduce the impact of airflow on the small-diameter section 212, the inlet pipe 21 includes a tapering section 211, such as... Figure 3 As shown, the tapering section 211 connects the outlet end of the large diameter section 210 and the inlet end of the small diameter section, and the tapering section 211 tapes from the large diameter section 210 to the small diameter section 212. In this way, the tapering section 211 provides a buffer and reduces the impact of the airflow on the small diameter section 212.

[0057] like Figure 3 As shown, the large-diameter section 210, the tapering section 211, and the small-diameter section 212 are distributed sequentially along the same axis, so that the speed of the airflow can gradually increase as it passes through the large-diameter section 210, the tapering section 211, and the small-diameter section 212, thus ensuring the stability of the airflow during acceleration.

[0058] In order for the airflow to have an angle with the axis of the resonant cavity 23 when it enters the resonant cavity 23, such as Figure 2 As shown, a vortex generating unit 22 is connected to the outlet end of the inlet pipe 21 to generate vortices. Specifically, the vortex generating unit 22 includes a vortex cavity 220, the inlet end of which is connected to the outlet end of the small-diameter section 212, so that the high-speed airflow generated by the inlet pipe 21 is discharged into the vortex cavity 220 and forms vortices through the vortex cavity 220. The outlet end of the vortex cavity 220 is connected to a resonant cavity 23, so that the vortex is discharged into the resonant cavity 23 and resonates within the resonant cavity 23 to form sound waves.

[0059] In order to enable the high-speed airflow to form vortices within the vortex cavity 220, such as Figure 4As shown, the inner wall of the vortex cavity 220 is provided with guide vanes 221. The guide vanes 221 are distributed along the axial direction of the vortex cavity 220, so that the airflow rotates in the vortex cavity 220 under the guidance of the guide vanes 221 and moves towards the outlet end of the vortex cavity 220, thereby forming a vortex.

[0060] In some embodiments, such as Figure 4 As shown, multiple guide vanes 221 are provided on the inner wall of the vortex cavity 220. The multiple guide vanes 221 are distributed sequentially along the axial direction of the vortex cavity 220 and are distributed along the same helical line so that the airflow rotates under the guidance of the multiple guide vanes 221 after entering the vortex cavity 220. Furthermore, by adjusting the number of guide vanes 221 and the angle between the guide vanes 221 and the inner wall of the vortex cavity 220, the intensity of the formed vortex can be adjusted, thereby expanding the intensity range of the formed sound wave.

[0061] In some other embodiments, a guide vane 221 is provided on the inner wall of the vortex cavity 220. The guide vane 221 is integral and spiral-shaped, so that the airflow rotates under the guidance of the guide vane 221 after entering the vortex cavity 220, thereby improving the stability of vortex formation.

[0062] It should be noted that, due to the large impact force of high-speed airflow, the guide vane 221 is made of wear-resistant metal materials, such as titanium alloy, hard alloy, and high manganese steel, so that the guide vane 221 can withstand the impact of high-speed airflow, extend the service life of the guide vane 221, and further improve the stability of vortex formation.

[0063] like Figure 2 As shown, the outlet end of the eddy current generating section 22 is connected to the resonant cavity 23 so that the eddy current generated by the eddy current generating section 22 resonates in the resonant cavity 23 to form sound waves. Specifically, the resonant cavity 23 includes a resonant cavity body, the inlet end of the resonant cavity body is connected to the outlet end of the eddy current cavity 220, and the interior of the resonant cavity body is provided with a reflective layer or reflective structure for reflecting the eddy current.

[0064] For example, the resonant cavity is provided with a smooth layer for reflecting eddy currents. After the high-speed eddy current enters the resonant cavity, it vibrates in the resonant cavity under the reflection of the smooth layer. When the high-speed eddy current vibrates in the resonant cavity to the resonant frequency, the eddy current forms a sound wave.

[0065] In some other embodiments, the resonant cavity is provided with a reflective structure for reflecting eddy currents, such as a mirror or reflector. After the eddy currents enter the resonant cavity, they vibrate and form sound waves under the action of the reflective structure. The reflective structure is detachably installed in the resonant cavity, and the intensity of the formed sound waves can be adjusted by replacing different reflective structures, thereby further expanding the intensity range of the formed sound waves.

[0066] In order to increase the frequency response range of eddy currents within the resonant cavity, such as Figure 2 As shown, the resonant cavity is cylindrical, which can increase the range of reflection angles of eddy currents within the resonant cavity and further increase the frequency response range of eddy currents within the resonant cavity.

[0067] In some other embodiments, the resonant cavity is spherical, which can further increase the range of angles at which eddies are reflected within the resonant cavity, thereby further increasing the frequency response range of the generated sound waves.

[0068] Of course, since the size and shape of the resonant cavity can affect the frequency of the sound wave, the resonant cavity can also be a square cylinder, a hemisphere, etc. in order to form sound waves of different frequencies. This application does not limit this.

[0069] In order to increase the intensity of sound waves, such as Figure 2 As shown, the outlet of the resonant cavity 23 is connected to the diffuser tube 24, which is used to diffuse the sound waves generated in the resonant cavity 23. The diffuser tube 24 is a gradually expanding tube, and the diffuser tube 24 gradually expands from the inlet end of the diffuser tube 24 to the outlet end of the diffuser tube 24. After the sound waves are generated in the resonant cavity 23, they are discharged from the inlet end of the diffuser tube 24 to the outlet end of the diffuser tube 24, which enhances the intensity of the sound wave.

[0070] In practice, the sound-generating device provided in this application embodiment is equipped with a sound wave sensor 42 for detecting the intensity of the synthesized sound wave. In this way, the intensity of the synthesized sound wave can be adjusted through the feedback of the sound wave sensor 42.

[0071] Specifically, the intensity of the sound wave is adjusted through the control system 5. The control system 5 includes a controller and a data processor that is communicatively connected to the controller. The data processor is communicatively connected to the sound wave sensor 42 and can convert the electrical signal of the sound wave detected by the sound wave sensor 42 into a digital signal. The controller is connected to the air compressor 1. After judging the digital signal processed by the data processor, it issues control commands to the air compressor 1 according to the actual situation, adjusting parameters such as the exhaust pressure, exhaust flow rate, exhaust speed, and operating frequency of the air compressor 1, thereby adjusting the intensity of the generated sound wave.

[0072] Specifically, adjusting the exhaust pressure of the air compressor can regulate the pressure of the output airflow. Higher exhaust pressure creates a stronger airflow impact, thus increasing the intensity of the sound waves. Exhaust flow rate refers to the volume of gas discharged by the air compressor per unit time. Increasing the exhaust flow rate allows more gas to be released into the environment quickly per unit time, thus increasing the intensity of the sound waves. Exhaust velocity refers to the speed at which the airflow exits the compressor. Increasing the exhaust velocity results in a stronger airflow impact and faster air molecule vibration, thus increasing the intensity of the sound waves. When using an air compressor with an adjustable operating frequency, the operating frequency can affect the repetition rate and intensity of the airflow pulses, thereby indirectly affecting the intensity of the sound waves.

[0073] In practice, the acoustic wave generation system provided in this application embodiment also includes a power supply component 6, which provides electrical energy to the control system 5, the air compressor 1, and the acoustic wave sensor 42. For example, the power supply component 6 includes a solar panel and an energy storage device connected to the solar panel via a cable, saving costs. The energy storage device, connected to the control system 5, the air compressor 1, and the acoustic wave sensor 42 via a cable, can provide a stable voltage, ensuring the stability of the acoustic wave generation system's operation.

[0074] Of course, power can also be supplied by other power supply components 6, such as generators, transformers and other power generation equipment. This application embodiment does not limit this.

[0075] Before the sound-generating device provided in this embodiment operates, firstly, the power supply component 6 connects to the control system 5, the air compressor 1, and the sound wave sensor 42. The control system 5 connects to the air compressor 1 and the sound wave sensor 42 to prepare for detection and adjustment. The first emitting covers 32 of all sound wave emitting components 3 are sealed and connected to the synthesizing cover 40 of the sound wave synthesizing component 4, and the emission direction of each first emitting cover 32 is adjusted. After preparation, the air compressor 1 is started. The airflow discharged by the air compressor 1 is discharged to the corresponding whistle sound-generating component 2 through the air supply pipe 10. The airflow passes through the inlet pipe 2 in sequence in the whistle sound-generating component 2. 1. Sound waves are generated after the eddy current generating section 22 and the resonant cavity 23. These sound waves are diffused through the diffuser 24 and then emitted through the first emitting cover 32 into the synthesizing cover 40 to form a synthesized sound wave. The synthesized sound wave is then emitted through the second emitting cover 41, enhancing the intensity of the sound wave. Simultaneously, the sound wave sensor 42 feeds back the detected sound wave intensity to the control system 5. After data processing, the control system 5 adjusts parameters such as the exhaust pressure, exhaust flow rate, exhaust speed, and operating frequency of the air compressor 1 according to the data fed back by the sound wave sensor 42, thereby adjusting the intensity of the generated sound wave. The above description of the disclosed embodiments enables those skilled in the art to implement or use this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A sound-generating device, characterized in that, include: Air compressor (1), whistle sound-generating component (2), sound wave emitting component (3), sound wave synthesizing component (4); Among them, there are at least two whistle sound-generating components (2) and at least two sound wave emitting components (3), and the whistle sound-generating components (2) and the sound wave emitting components (3) correspond one-to-one; The whistle sound-generating assembly (2) includes an inlet pipe (21), a vortex generating part (22), a resonant cavity (23), and a diffuser pipe (24), wherein the inlet pipe (21), the vortex generating part (22), the resonant cavity (23), and the diffuser pipe (24) are connected sequentially along the same axis; The exhaust port of the air compressor (1) is connected to the inlet pipe (21), and the airflow discharged by the air compressor (1) forms a sound wave after passing through the whistle sound-generating component (2); The acoustic wave emitting component (3) includes a first emitting cover (32), the first emitting cover (32) and the diffuser (24) are in one-to-one correspondence, and the inlet end of the first emitting cover (32) is connected to the corresponding diffuser (24) for emitting the acoustic wave; The acoustic synthesis component (4) includes a synthesis cover (40) and a second emission cover (41). The synthesis cover (40) is connected to the outlet end of all the first emission covers (32). The acoustic waves emitted by all the first emission covers (32) are synthesized into a synthetic acoustic wave in the synthesis cover (40). The second emission cover (41) is used to emit the synthetic acoustic wave.

2. The sound-generating device according to claim 1, characterized in that, The outlet end of the first launch shroud (32) is sealed to the inlet end of the composite shroud (40); The second radiator (41) is gradually expanding, and the second radiator (41) gradually expands from the inlet end of the second radiator (41) to the outlet end of the second radiator (41); The outlet end of the synthetic cover (40) is sealed to the inlet end of the second emission cover (41); or, the synthetic cover (40) and the second emission cover (41) are an integral structure.

3. The sound-generating device according to claim 1, characterized in that, There are two of each of the whistle-generating components (2) and the sound wave emitting components (3), and there are two of each of the first emitting covers (32) and the diffuser tube (24), with the axes of the two first emitting covers (32) being collinear; Alternatively, there may be three or more of the whistle-generating components (2) and the sound wave emitting components (3), and there may be three or more of the first emitting covers (32) and the diffuser tubes (24), with the axes of all the first emitting covers (32) being coplanar and intersecting at a point.

4. The sound-generating device according to claim 1, characterized in that, The acoustic wave emitting assembly (3) also includes a base (30) and a support frame (31); The base (30) is used to support the support frame (31); The support frame (31) is disposed on the base (30), and the support frame (31) is connected to the first launch cover (32) and is used to support the first launch cover (32).

5. The sound-generating device according to claim 1, characterized in that, The whistle sound-generating assembly (2) also includes a housing (20), and the inlet pipe (21), the vortex generating part (22), the resonant cavity (23) and the diffuser pipe (24) are all located inside the housing (20); The inlet pipe (21) includes: Large diameter section (210), the inlet end of which is connected to the exhaust port of the air compressor (1); Small diameter section (212), the outlet end of which is connected to the vortex generating part (22); A tapering section (211) connects the outlet end of the large diameter section (210) to the inlet end of the small diameter section (212), and the tapering section (211) tapes from the large diameter section (210) to the small diameter section (212). The large-diameter section (210), the tapering section (211), and the small-diameter section (212) are distributed sequentially along the same axis.

6. The sound-generating device according to claim 5, characterized in that, The vortex generating part (22) includes a vortex cavity (220), the inlet end of the vortex cavity (220) is connected to the outlet end of the small diameter section (212), and the outlet end of the vortex cavity (220) is connected to the resonant cavity (23). The vortex cavity (220) is provided with guide vanes (221), which are located on the inner wall of the vortex cavity (220). The guide vanes (221) are distributed along the axial direction of the vortex cavity (220), and the airflow forms a vortex after passing through the vortex cavity (220). The guide vanes (221) are multiple, and the multiple guide vanes (221) are distributed sequentially along the axial direction of the vortex cavity (220), and the multiple guide vanes (221) are distributed along a spiral line; or, the guide vanes (221) are integral and spiral in shape.

7. The sound-generating device according to claim 6, characterized in that, The resonant cavity (23) includes a resonant cavity body, the inlet end of which is connected to the outlet end of the vortex cavity (220), and the outlet end of which is connected to the inlet end of the diffuser tube (24); the vortex resonates within the resonant cavity (23) to form sound waves; The resonant cavity is provided with a reflective layer or reflective structure for reflecting the eddy current.

8. The sound-generating device according to claim 7, characterized in that, The diffuser tube (24) is a gradually expanding tube, which gradually expands from the inlet end to the outlet end of the diffuser tube (24), and the outlet end of the diffuser tube (24) corresponds to the sound wave emitting component (3).

9. The sound-generating device according to claim 1, characterized in that, The air compressor (1) is connected to the whistle-generating assembly (2) through an air supply pipe (10), and the air supply pipe (10) corresponds one-to-one with the inlet pipe (21).

10. The sound-generating device according to claim 1, characterized in that, The sound-generating device further includes: A sound wave sensor (42) is used to detect the intensity of the synthesized sound wave; The control system (5) is electrically connected to the air compressor (1) and the acoustic sensor (42). The power supply component (6), the control system (5), the air compressor (1), and the acoustic sensor (42) are all electrically connected to the power supply component (6).

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