Acoustic waveguide of linear array sound box
By designing a conveniently assembled linear array sound waveguide, the arc-shaped conduction cavity, isolation ribs, bumps, sound frames and stable connection structures, the sound attenuation problem caused by point sound source propagation is solved, and the linear propagation of sound and wider sound is achieved. clear audio coverage.
Patent Information
- Application Number
- CN202323514666.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-22
- Publication Date
- 2024-12-31
- Estimated Expiration
- 2033-12-22
AI Technical Summary
The sound waveguides in line array sounds use point sound sources to propagate sound, causing the sound to decay with the increase of distance, resulting in a decrease in sound quality in areas away from the source, and the listener has an inconsistent auditory experience at different locations.
Design a sound waveguide of a linear array sound, including a device body composed of the first module and the second module, the module structure is the same, the engaging design is easy to assemble and disassemble, the conduction cavity is arc-shaped and isolating ribs and bumps are arranged to produce sound The speaker is installed outside the mouth, the connection between the slots and cuttings is enhanced with the stability, the child buckle is fixed with the female buckle, and the rubber ring is enhanced with the stability.
Achieve linear propagation of sound, spread far and more accurately, reduce noise and stray sound, ensure consistent sound quality, and enhance audio transmission effect and coverage.
Smart Images
Figure CN222283423U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of audio equipment, in particular to an acoustic waveguide of a line array audio system. Background Art
[0002] Line array audio is an audio system composed of multiple speaker units. Through precise sound wave control and distribution, it can achieve more evenly distributed sound coverage and enhance the listening effect.
[0003] Line array speakers usually consist of one or more rows of speaker units in the same or different directions, which are installed in a specially designed structure, such as a rectangle or curve. Each speaker unit is precisely positioned and calibrated to emit sound in a specific direction and form a concentrated sound source.
[0004] The acoustic waveguide of line array speakers refers to a special structure used to guide and control the propagation of sound waves. Acoustic waveguides are often used in array sound systems to help optimize the distribution and directionality of sound.
[0005] The design of acoustic waveguides is usually based on acoustic principles and aims to improve the radiation and dispersion characteristics of sound. It can achieve more accurate, uniform and directional audio coverage by controlling the propagation path and emission angle of sound waves. In array audio, each speaker unit is usually equipped with an acoustic waveguide to guide and diffuse the sound waves generated by the speaker. The acoustic waveguide can change the phase and amplitude characteristics of the sound wave, so that the audio can be projected more concentratedly to the target area, reducing the diffusion and scattering of the sound, and improving the audience's listening experience.
[0006] For example, a sound waveguide for a line array speaker with a publication number of 202222019221.6 can avoid interference between sound waves radiated from adjacent sound wave conduction paths as much as possible, and the high-frequency sound output of the sound source has good fidelity. However, in this solution, the sound waveguide uses a point sound source to propagate sound. The source of this sound is limited to a single point, and the sound may gradually attenuate as the distance increases, resulting in a decrease in the sound quality heard in areas far from the sound source, which may cause listeners to have inconsistent auditory experiences at different locations; therefore, it does not meet existing needs, and we have proposed a sound waveguide for a line array speaker. Utility Model Content
[0007] The utility model provides an acoustic waveguide for a line array speaker, which can emit sound linearly, so that the sound propagates farther and more accurately, solving the problem that the acoustic waveguide mentioned in the above background technology uses a point sound source to propagate sound. The source of this sound is limited to a single point, and the sound may gradually attenuate as the distance increases, resulting in a decrease in the sound quality heard in an area far away from the sound source, which may cause the listeners to obtain inconsistent auditory experience at different positions.
[0008] The utility model provides the following technical solution: a sound waveguide of a line array speaker, comprising a device body, wherein the device body is composed of a first module and a second module, the first module and the second module have the same structure, the second module is snapped onto the first module, a sound inlet hole is provided at the bottom of the device body, a sound outlet is provided at the top of the device body, a conduction cavity is provided inside the device body, the conduction cavity is provided with a plurality of isolation ribs in an arc shape, and strip grooves are formed between the isolation ribs.
[0009] As an optional solution for the sound waveguide of a line array speaker described in the utility model, the isolation ribs are configured as rubber ribs, a plurality of protrusions are provided in the strip grooves, and the protrusions are evenly distributed in the conduction cavity in an array.
[0010] As an optional solution for the sound waveguide of a line array sound system described in the utility model, a sound amplification frame is fixedly installed outside the sound outlet, the sound amplification frame is arranged in an inverted trapezoid, and the bottom of the sound amplification frame corresponds to the sound outlet.
[0011] As an optional solution for the sound waveguide of a line array speaker described in the utility model, wherein: the conduction cavity is divided into a first cavity and a second cavity, the first cavity and the second cavity have the same internal structure, the first cavity is opened in the first module, and the second cavity is opened in the second module, when the first module and the second module are engaged, the first cavity and the second cavity are combined to form the conduction cavity.
[0012] As an optional solution for the sound waveguide of a line array speaker described in the utility model, a slot is provided in the first module, an insertion strip is provided in the second module, the insertion strip is plugged into the slot, and the second module is fixedly engaged on the first module by plugging the insertion strip.
[0013] As an optional solution for the sound waveguide of the line array sound system described in the utility model, a damping ring is glued in the slot, and the damping ring is set as a rubber ring.
[0014] As an optional solution for the sound waveguide of a line array speaker described in the utility model, a sub-button and a female buckle are installed between the first module and the second module, the sub-button is installed in the first module, the second module is installed inside the second module, the sub-button is engaged with the groove of the female buckle, and the second module is engaged on the first module through the cooperation of the sub-button and the female buckle.
[0015] As an optional solution for the sound waveguide of a line array sound system described in the utility model, wherein: the device body is set in two, one of the device bodies is symmetrically arranged at the side of the other device body, and the two device bodies are fixedly installed.
[0016] The utility model has the following beneficial effects:
[0017] 1. The sound waveguide of the array audio system is composed of a first module and a second module through the device body. The first module has the same structure as the second module, and the second module is snapped onto the first module, so that the assembly and disassembly of the device body is more convenient. A sound inlet hole is provided at the bottom of the device body, a sound outlet is provided at the top of the device body, and a conduction cavity is provided inside the device body. The conduction cavity is provided with a plurality of isolation ribs in an arc shape, and strip grooves are formed between the isolation ribs, so that the sound can be emitted linearly. This sound emission method can make the sound propagate farther and more accurately.
[0018] 2. The sound waveguide of the array audio system has a slot in the first module and an insert in the second module. The insert is plugged into the slot, making the connection between the device bodies more secure. Even if the volume inside the sound guide is too loud, there will be no misalignment between the bumps in the sound guide cavity, so that the sound waves can be transmitted more accurately. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 It is a three-dimensional structural schematic diagram of the utility model.
[0020] Figure 2 It is a schematic diagram of the split structure of the utility model.
[0021] Figure 3 It is a schematic diagram of the cutaway structure of the utility model.
[0022] Figure 4 It is a schematic diagram of the top structure of the utility model.
[0023] Figure 5 It is a schematic diagram of the bottom structure of the utility model.
[0024] In the figure: 100, device body; 110, first module; 111, slot; 112, damping ring; 113, sub-button; 120, second module; 121, insert; 122, female buckle; 130, sound inlet; 140, sound outlet; 150, conduction cavity; 151, isolation rib; 152, strip groove; 153, bump; 154, first cavity; 155, second cavity; 160, sound amplification frame. DETAILED DESCRIPTION
[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0026] Example 1
[0027] This embodiment is intended to help solve the problem that the sound waveguide uses a point sound source to propagate sound. The source of this sound is limited to a single point, and the sound may gradually attenuate as the distance increases, resulting in a decrease in the sound quality heard in areas far away from the sound source. This may cause listeners to have inconsistent auditory experiences at different locations. Please refer to Figure 1 - Figure 5 , a sound waveguide of a line array speaker includes a device body 100.
[0028] The device body 100 is composed of a first module 110 and a second module 120. The first module 110 and the second module 120 have the same structure. The second module 120 is snapped onto the first module 110, and the assembly and disassembly of the device body 100 is more convenient. A sound inlet 130 is provided at the bottom of the device body 100, and a sound outlet 140 is provided at the top of the device body 100. A conduction cavity 150 is provided inside the device body 100. The conduction cavity 150 is provided with a plurality of isolation ribs 151 in an arc shape, and strip grooves 152 are formed between the isolation ribs 151. The sound can be emitted linearly, and this sound emission method can make the sound propagation farther and more accurately. The sound can be propagated in a wider space, so that more listeners can enjoy clear and high-quality sound, and enhance the transmission effect of the audio. The conduction cavity 150 can make the sound more concentrated and focused, enhance the penetration and distance propagation ability of the sound, and enable the sound to propagate farther without losing quality.
[0029] The isolation ribs 151 are set as rubber ribs. The rubber ribs are set as isolation ribs 151 in the conduction cavity 150, which can effectively isolate the propagation of sound waves, reduce the reflection and diffusion of sound, and thus reduce the generation and propagation of noise. Several bumps 153 are set in the strip grooves 152, and the bumps 153 in the conduction cavity 150 can break the propagation path of the sound waves. When the sound passes through the bumps 153, they will be reflected and scattered multiple times, thereby reducing the generation of resonance and echo. This can make the sound cleaner and purer, and reduce stray sound and distortion. The bumps 153 are evenly distributed in the conduction cavity 150 in an array. They can make the sound move along a regular path in the conduction cavity 150, so that the sound is radiated evenly in all directions, achieving a more all-round sound experience.
[0030] A loudspeaker frame 160 is fixedly mounted outside the sound outlet 140. The loudspeaker frame 160 is set in an inverted trapezoidal shape, and the bottom of the loudspeaker frame 160 corresponds to the sound outlet 140. The sound in the sound outlet 140 can be collected and guided, and expanded and dispersed to a wider area. In this way, the coverage of the sound can be expanded, so that more listeners can enjoy clear and high-quality sound.
[0031] The conduction cavity 150 is divided into a first cavity 154 and a second cavity 155. The first cavity 154 and the second cavity 155 have the same internal structure. The first cavity 154 is opened in the first module 110, and the second cavity 155 is opened in the second module 120. When the first module 110 and the second module 120 are engaged, the first cavity 154 and the second cavity 155 are combined to form the conduction cavity 150. The assembly and disassembly of the device are made easier. The assembly of the device can be completed by simply engaging the first module 110 and the second module 120, without the need to separately handle the connection of the conduction cavity 150, thereby improving the convenience and efficiency of the operation.
[0032] In this embodiment: the device body 100 is composed of a first module 110 and a second module 120. The first module 110 and the second module 120 have the same structure. The second module 120 is snapped onto the first module 110, so that the assembly and disassembly of the device body 100 are more convenient. A sound inlet hole 130 is provided at the bottom of the device body 100, a sound outlet 140 is provided at the top of the device body 100, and a conduction cavity 150 is provided inside the device body 100. The conduction cavity 150 is provided with a plurality of isolation ribs 151 in an arc shape, and strip grooves 152 are formed between the isolation ribs 151, so that the sound can be emitted linearly. This sound emission method can make the sound propagate farther and more accurately.
[0033] Example 2
[0034] This embodiment is intended to promote the solution of the problem that when the connection of the sound waveguide is not firm enough, the transmission of high-volume sound waves will exert a large force on the connection, which may cause the components inside the sound waveguide to be misaligned, thereby causing the sound waves to be transmitted inaccurately. This embodiment is an improvement made on the basis of embodiment 1. For details, please refer to Figure 1 - Figure 5 .
[0035] A slot 111 is provided in the first module 110, and an insert 121 is provided in the second module 120. The insert 121 is plugged into the slot 111, and the second module 120 is fixedly engaged with the first module 110 by plugging the insert 121. The connection between the device bodies is more secure, and even when the volume inside the sound guide is too high, there will be no misalignment between the protrusions 153 and the protrusions 153 in the sound guide cavity, so that the sound waves can be transmitted more accurately.
[0036] A sub-button 113 and a female button 122 are installed between the first module 110 and the second module 120. The sub-button 113 is installed in the first module 110, and the second module 120 is installed inside the second module 120. The sub-button 113 is engaged with the groove of the female button 122, and the second module 120 is engaged with the first module 110 through the cooperation of the sub-button 113 and the female button 122. The second module 120 can be easily plugged with the first module 110. This design facilitates the assembly and disassembly of the device body 100, making the operation simpler and faster. At the same time, the overall stability of the device body 100 can be improved, and the looseness and vibration between the components can be reduced, thereby ensuring the stability and reliability of the sound waveguide during use.
[0037] A damping ring 112 is glued in the slot 111, and the damping ring 112 is set as a rubber ring. The elastic properties of the rubber ring can improve the stability of the device. The glued rubber ring in the slot 111 can prevent the movement and shaking of the device body 100 and enhance the structural stability of the device. This can reduce the noise, resonance or instability caused by the vibration of the device, ensure the normal operation of the device, and extend the service life of the device. The device body 100 is set as two, one device body 100 is symmetrically arranged on the side of the other device body 100, and the two device bodies 100 are fixedly installed.
[0038] In the present embodiment: a slot 111 is provided in the first module 110, and an insert 121 is provided in the second module 120, and the insert 121 is plugged into the slot 111, so that the connection between the device bodies is more secure, and even when the volume inside the sound guide is too loud, there will be no misalignment between the protrusions 153 and the protrusions 153 in the sound guide cavity, so that the sound waves can be transmitted more accurately.
[0039] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.
[0040] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.
Claims
1. A sound waveguide for a line array speaker, comprising a device body (100), characterized in that: The device body (100) is composed of a first module (110) and a second module (120); the first module (110) and the second module (120) have the same structure; the second module (120) is snapped onto the first module (110); a sound inlet hole (130) is provided at the bottom of the device body (100); a sound outlet (140) is provided at the top of the device body (100); a conduction cavity (150) is provided inside the device body (100); the conduction cavity (150) is provided with isolation ribs (151) in an arc shape; strip grooves (152) are formed between the isolation ribs (151).
2. The acoustic waveguide of a line array speaker according to claim 1, characterized in that: The isolation ribs (151) are configured as rubber ribs, a plurality of protrusions (153) are provided in the strip-shaped grooves (152), and the protrusions (153) are evenly distributed in the conductive cavity (150) in an array.
3. The acoustic waveguide of a line array speaker according to claim 1, characterized in that: A sound amplifying frame (160) is fixedly mounted outside the sound outlet (140); the sound amplifying frame (160) is arranged in an inverted trapezoidal shape; and the bottom of the sound amplifying frame (160) corresponds to the sound outlet (140).
4. The acoustic waveguide of a line array speaker according to claim 1, characterized in that: The conduction cavity (150) is divided into a first cavity (154) and a second cavity (155); the first cavity (154) and the second cavity (155) have the same internal structure; the first cavity (154) is opened in the first module (110), and the second cavity (155) is opened in the second module (120); when the first module (110) and the second module (120) are engaged, the first cavity (154) and the second cavity (155) are combined to form the conduction cavity (150).
5. The acoustic waveguide of a line array speaker according to claim 1, characterized in that: A slot (111) is provided in the first module (110), and an inserting strip (121) is provided in the second module (120). The inserting strip (121) is plugged into the slot (111), and the second module (120) is fixedly engaged with the first module (110) by plugging the inserting strip (121).
6. The acoustic waveguide of a line array speaker according to claim 5, characterized in that: A damping ring (112) is glued inside the slot (111), and the damping ring (112) is configured as a rubber ring.
7. The acoustic waveguide of a line array speaker according to claim 1, characterized in that: A sub-button (113) and a female button (122) are installed between the first module (110) and the second module (120); the sub-button (113) is installed in the first module (110), and the second module (120) is installed inside the second module (120); the sub-button (113) is engaged with a groove of the female button (122); and the second module (120) is engaged with the first module (110) through the cooperation between the sub-button (113) and the female button (122).
8. The acoustic waveguide of a line array speaker according to claim 1, characterized in that: The device bodies (100) are provided in pairs, one of the device bodies (100) is symmetrically arranged on the side of the other device body (100), and the two device bodies (100) are fixedly installed.