CN115278418A - Acoustic damping device, assembly process thereof and audio equipment - Google Patents
Acoustic damping device, assembly process thereof and audio equipment Download PDFInfo
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- CN115278418A CN115278418A CN202210738060.8A CN202210738060A CN115278418A CN 115278418 A CN115278418 A CN 115278418A CN 202210738060 A CN202210738060 A CN 202210738060A CN 115278418 A CN115278418 A CN 115278418A
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- mounting plate
- shell
- horn
- loudspeaker
- damping device
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- 238000013016 damping Methods 0.000 title claims abstract description 99
- 238000000034 method Methods 0.000 title claims abstract description 14
- 230000007246 mechanism Effects 0.000 claims abstract description 44
- 230000002093 peripheral effect Effects 0.000 claims abstract description 4
- 230000003139 buffering effect Effects 0.000 claims description 13
- 238000000465 moulding Methods 0.000 claims description 4
- 239000013013 elastic material Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims 1
- 206010068150 Acoustic shock Diseases 0.000 abstract description 3
- 238000010521 absorption reaction Methods 0.000 abstract description 3
- 230000003993 interaction Effects 0.000 description 8
- 230000000694 effects Effects 0.000 description 5
- 230000035939 shock Effects 0.000 description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 239000000741 silica gel Substances 0.000 description 3
- 229910002027 silica gel Inorganic materials 0.000 description 3
- 230000005489 elastic deformation Effects 0.000 description 2
- 239000006260 foam Substances 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000002929 anti-fatigue Effects 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Images
Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/02—Casings; Cabinets ; Supports therefor; Mountings therein
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/08—Mouthpieces; Microphones; Attachments therefor
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
- H04R1/22—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only
- H04R1/30—Combinations of transducers with horns, e.g. with mechanical matching means, i.e. front-loaded horns
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2201/00—Details of transducers, loudspeakers or microphones covered by H04R1/00 but not provided for in any of its subgroups
- H04R2201/02—Details casings, cabinets or mounting therein for transducers covered by H04R1/02 but not provided for in any of its subgroups
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- General Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Aviation & Aerospace Engineering (AREA)
- Mechanical Engineering (AREA)
- Health & Medical Sciences (AREA)
- Otolaryngology (AREA)
- Details Of Audible-Bandwidth Transducers (AREA)
Abstract
The invention provides an acoustic damping device, an assembling process thereof and audio equipment. The acoustic damping device comprises a shell, a damping mechanism and a loudspeaker; the damping mechanism comprises a buffer piece, a first mounting plate and a second mounting plate; the central plane of the damping mechanism is provided with a first mounting hole, the peripheral edge of the damping mechanism is provided with a second mounting hole, the buffer piece comprises a buffer part which surrounds the edge of the first mounting hole to form concave and convex, and the buffer part is used for absorbing the vibration energy of the loudspeaker and preventing the vibration energy of the loudspeaker from being transmitted to the shell, the pickup of an external microphone or the inherent frequency of other external equipment; the distance between the first connecting part and the loudspeaker is adjusted, and the concave-convex curvature of the buffer part is adjusted to adjust the vibration energy transferred by the loudspeaker. The technical scheme of the invention ensures that the loudspeaker is independent of the shell, greatly prevents the vibration energy of the loudspeaker from being transmitted to the shell and being far away from the natural frequency of the surrounding devices, and absorbs most of the kinetic energy through the buffer part so as to achieve acoustic shock absorption and noise avoidance and endow the equipment with better tone quality.
Description
Technical Field
The invention relates to the technical field of loudspeaker boxes, in particular to an acoustic damping device, an assembling process thereof and audio equipment.
Background
Along with the rapid development and the iteration of intelligent science and technology, equipment such as intelligent official working, intelligent house are more and more indispensable, and its voice interaction is the important performance that realizes information remote transmission and equipment terminal control. People have higher and higher performance requirements on voice interaction equipment, and the voice recognition and processing of intelligent audio products depend on a good acoustic system. A good acoustic system should be a loudspeaker and a microphone without energy interference, providing a noise free environment for speech recognition caused by vibration noise. Therefore, acoustic shock absorption is used for determining the restoration of a high-quality sound source and realizing better voice interaction during multi-talk.
Based on the audio equipment of a good tone quality, loudspeaker usually set up in closed box, and the loudspeaker of fastening on the box can release huge vibration energy under high-power for the box produces the noise with the resonance of surrounding device, thereby influences the distortion of sound source, influences loudspeaker and microphone tone quality interaction under simultaneous working simultaneously. In the prior art, soft silica gel, foam and the like are mostly adopted for damping, vibration energy is reduced only by the elastic thickness of the silica gel, and for example, a horn unit is fastened on a box body through damping buffering bodies such as silica gel, foam and the like with good rebound resilience. Because the fastening bracket of the horn unit is clamped on the box body in a sandwich manner through the damping buffer body, the fastening mode becomes very tight, a soft elastomer is changed into a hard contact body, and the elastic deformation of the damping buffer body is greatly weakened; the fastening bracket and the damping buffer body have direct or indirect energy transmission with the box body on a large area. Especially, under high power, the vibration energy of the horn unit is transmitted to the periphery of the box body through the hard contact body, and the vibration energy is mostly transmitted by the shock absorption buffer without elastic deformation, so that the mode shows poor effects of noise, tail sound and the like on the test, please refer to fig. 1 (a). So that the huge vibration kinetic energy of the loudspeaker is transferred to the box body and is possibly amplified by the natural frequency of other mechanisms. Resulting in a less than ideal damping pattern.
In view of the above, the present invention provides an acoustic damping mechanism for an intelligent voice interaction device, so as to substantially absorb and damp vibration, avoid most of the vibration energy from being transmitted to the periphery of a box and the pickup of a microphone, and achieve better voice interaction and improved tone quality when a speaker and a microphone work together in the same device.
Disclosure of Invention
The invention mainly aims to provide an acoustic damping device, an assembling process thereof and audio equipment, and aims to solve the technical problem that the damping effect of the acoustic damping device in the prior art is not ideal.
In order to achieve the purpose, the invention provides an acoustic damping device, which comprises a shell, a damping mechanism and a loudspeaker, wherein the damping mechanism comprises a damping piece, a first mounting plate and a second mounting plate; the central surface of the damping mechanism is provided with a first mounting hole, the peripheral edge of the damping mechanism is provided with a second mounting hole, the damping piece comprises a buffering part which surrounds the edge of the first mounting hole to form concave and convex, the buffering part extends towards one side of the first mounting hole to form a first connecting part connected with the first mounting plate, the first connecting part is connected with the horn, the buffering part extends towards one side away from the first mounting hole to form a second connecting part connected with the second mounting plate, and the second connecting part is connected with the shell;
the first mounting plate and the first connecting part are integrally formed or detachably connected, and the second mounting plate and the second connecting part are integrally formed or detachably connected;
the buffer part is used for absorbing the vibration energy of the horn and avoiding the vibration energy of the horn from being transmitted to the shell, the pickup of an external microphone or the natural frequency of other external equipment; the distance between the first connecting part and the horn is adjusted, and the concave-convex curvature of the buffer part is adjusted to adjust the vibration energy transferred by the horn.
Optionally, the damping mechanism is one of a circular, square, special-shaped or three-dimensional type; the buffer part is arranged in a concave-convex mode of a peak valley shape, a wave shape, a folded ring shape or an m shape; wherein, the buffer mechanism adopts the forward direction to assemble on the shell or reverse direction to assemble on the shell.
Optionally, one or more of the first mounting plate, the second mounting plate and the buffer part are made of an elastic material, wherein the first mounting plate, the second mounting plate and the buffer part are made of the same or different materials.
Optionally, the first mounting plate, the second mounting plate and the buffer part have the same or different hardness.
Optionally, the thicknesses of the first mounting plate, the second mounting plate and the buffer part are the same or different.
Optionally, acoustics damping device still includes leading sound awl, it sets up to lead sound awl the bolster deviates from one side of casing, lead the summit of sound awl towards the second mounting hole with loudspeaker set up.
Optionally, the housing includes an upper shell and a lower shell, the upper shell and the lower shell being ultrasonically welded.
Optionally, the assembly process of the acoustic damping device is used for assembling the acoustic damping device according to any one of claims 1 to 7, the assembly process comprising:
connecting the first connecting part with the horn in a fastening mode;
the second connecting part is fixed on the shell in a fastening mode, so that the loudspeaker and the shell are independent at intervals, and the first connecting part and the second connecting part are buffered through the buffering part, so that vibration energy of the loudspeaker is prevented from being transmitted to the shell and the pickup of an external microphone or the inherent frequency of other external equipment.
Optionally, before the step of connecting the first connecting portion to the horn by fastening, the method further includes:
mounting the first mounting plate on the first connecting portion, or integrally molding the first mounting plate on the first connecting portion;
before the step of fixing the second connecting portion to the housing by fastening, the method further includes:
and mounting the second mounting plate on the second connecting portion, or integrally molding the first mounting plate on the first connecting portion.
In addition, in order to solve the above problems, the present invention further provides an audio device, where the audio device is one of a high-sensitivity loudspeaker sound box, a high-power sound box, a multi-microphone array sound box and a multi-loudspeaker combined sound box, the audio device is provided with the above acoustic damping device, the acoustic damping device is a sealed damping cavity independent from the sound box of the audio device, and the damping body absorbs vibration energy of the loudspeaker, so as to prevent the vibration energy of the loudspeaker from being transmitted to the housing, the pickup of an external microphone, or the natural frequency of other external devices.
According to the technical scheme, the buffer part is arranged on the damping mechanism, so that the assembled loudspeaker is indirectly independent of the shell, the contact between the loudspeaker and the shell is isolated, the vibration energy of the loudspeaker is greatly prevented from being transmitted to the shell and being far away from the natural frequency of surrounding devices, and most of kinetic energy is absorbed through the buffer part, so that acoustic damping and noise avoidance are achieved, better tone quality and sound source feedback are given to equipment, wherein the tone quality refers to the good tone quality heard after the loudspeaker sounds; the sound source feedback means that the microphone picks up sound without noise under the conditions of reverberation and loud speaker.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a comparison graph of frequency spectrums of a speaker in the acoustic damping device after playing and receiving sound through a microphone on the acoustic damping device
FIG. 2 is an exploded view of the acoustic shock absorbing device of the present invention;
FIG. 3 is an exploded view of a damping mechanism in the acoustic damping device of the present invention;
FIG. 4 is a schematic structural view illustrating the installation of a damping mechanism and a horn in the acoustic damping device according to the present invention;
FIG. 5 is a schematic structural view illustrating the mounting of the damping mechanism and the housing in the acoustic damping device according to the present invention;
fig. 6 is a cross-sectional view of the acoustic damping device of the present invention.
The reference numbers illustrate:
| reference numerals | Name(s) | Reference numerals | Name (R) |
| 10 | |
11 | |
| 12 | |
20 | |
| 30 | Shock-absorbing |
31 | |
| 32 | |
321 | First connecting |
| 322 | |
323 | Second connecting |
| 33 | |
40 | |
| 50 | |
60 | Second mounting hole |
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that all the directional indicators (such as upper, lower, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the motion situation, and the like in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.
In addition, descriptions such as "first", "second", etc. in the present invention are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise explicitly stated or limited, the terms "connected", "fixed", and the like are to be understood broadly, for example, "fixed" may be fixedly connected, may be detachably connected, or may be integrated; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In addition, the technical solutions in the embodiments of the present invention may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination of technical solutions should not be considered to exist, and is not within the protection scope of the present invention.
The invention provides an acoustic damping device, please refer to fig. 2 to 6;
the acoustic damping device comprises a shell, a damping mechanism and a loudspeaker, wherein the damping mechanism comprises a damping piece, a first mounting plate and a second mounting plate; the central surface of the damping mechanism is provided with a first mounting hole, the peripheral edge of the damping mechanism is provided with a second mounting hole, the buffer part comprises a concave-convex buffering part formed by surrounding the edge of the first mounting hole, the buffering part extends towards one side of the first mounting hole to form a first connecting part connected with the first mounting plate, the first connecting part is connected with the horn, the buffering part extends towards one side away from the first mounting hole to form a second connecting part connected with the second mounting plate, and the second connecting part is connected with the shell;
the first mounting plate and the first connecting part are integrally formed or detachably connected, and the second mounting plate and the second connecting part are integrally formed or detachably connected;
the buffer part is used for absorbing the vibration energy of the horn and avoiding the vibration energy of the horn from being transmitted to the shell, the pickup of an external microphone or the natural frequency of other external equipment; the distance between the first connecting part and the horn is adjusted, and the concave-convex curvature of the buffer part is adjusted to adjust the vibration energy transferred by the horn.
The specific assembling process of the acoustic damping device comprises the following steps of mounting the first mounting plate on the first connecting part;
connecting the first mounting plate and the first connecting part with the horn in a fastening mode;
mounting the second mounting plate on the second connecting portion;
will the second mounting panel with the second connecting portion pass through the fix with screw on the casing, so that loudspeaker with the interval is independent between the casing, just first connecting portion with pass through between the second connecting portion the buffering of buffer portion, thereby avoid the vibration energy transmission of loudspeaker is given the pickup of casing, outside microphone or the natural frequency of other external equipment.
Firstly, referring to fig. 4, the first mounting plate is placed on the top surface of the first connecting portion, the first mounting plate is attached to the first connecting portion, the first mounting plate is aligned with the threaded hole in the first connecting portion, the horn is attached to the bottom surface of the first connecting portion, and the horn, the first mounting plate and the damping mechanism are fixed into a whole through screws or bolts.
The buffer part can be one of a round shape, a square shape, a special shape or a three-dimensional shape; the buffer part is arranged in one of a peak valley shape, a wave shape, a folded ring shape and an m shape; wherein, the buffer mechanism adopts the forward direction to assemble on the shell or reverse direction to assemble on the shell. One or more of the first mounting plate, the second mounting plate and the buffer part are made of elastic materials, wherein the materials of the first mounting plate, the second mounting plate and the buffer part are the same or different. The first mounting plate, the second mounting plate and the buffer part have the same or different hardness. The thicknesses of the first mounting plate, the second mounting plate and the buffer part are the same or different. The energy transmitted by the vibration of the horn can be influenced by adopting any one of the above forms of combination.
In this embodiment, the buffer portion is bent together, so that the horn is indirectly fastened to the housing, and huge energy generated by the horn under high-power sound production is prevented from being transferred to the housing.
Then, referring to fig. 5, the assembled speaker and the second connecting portion of the damping mechanism are mounted on the housing, specifically, the second connecting portion, the second mounting plate and the end face of the housing are attached, the threaded holes are aligned, and the speaker and the second connecting portion are fastened by screws or bolts. And then fastening and connecting the fastening part on the sound cone. The damping mechanism is fastened with the shell through the second connecting part, so that the sealing around the horn is ensured in a mode of being finally independent of the shell, the vibration energy of the horn is absorbed to a great extent through an elastic shock-resistant mode, and the energy is prevented from being transmitted to the shell.
In the damping support assembly formed by the first mounting plate, the second mounting plate and the damping mechanism, the damping mechanism is mainly used for mainly damping, and the first mounting plate and the second mounting plate play roles in supporting and fastening. The damping support assembly can exist in various combination forms, can be in a mode that the damping mechanism is connected in a single piece, can also be in a mode that a first mounting plate and the damping mechanism are combined into a whole and are connected with a second mounting plate, the second mounting plate and the damping mechanism are combined into a whole and are connected with the first mounting plate, the first mounting plate and the second mounting plate are combined into a whole and are connected with the damping mechanism, and the like, or can be in a permutation and combination form that the first mounting plate and the second mounting plate are combined into a whole and are connected with the damping mechanism, and the damping support assemblies with different composition degrees can also influence the shock resistance in different degrees.
And finally, the shell comprises an upper shell and a lower shell, and the end face of the upper shell, which is far away from one side of the lower shell, is provided with the first mounting hole. The upper shell and the lower shell are ultrasonically welded. The groove of the upper shell is firmly connected with the bulge of the lower shell in an ultrasonic or other fastening mode, so that complete sealing of the horn is further ensured.
In addition, in order to solve the above problems, the present invention further provides an audio device, where the audio device is one of a high-sensitivity loudspeaker sound box, a high-power sound box, a multi-microphone array sound box and a multi-loudspeaker combined sound box, and the audio device is provided with the above acoustic damping device, and the acoustic damping device is a sealed damping cavity independent from the sound box of the audio device, so as to prevent vibration energy of the loudspeaker from being transmitted to the casing, pickup of an external microphone, or inherent frequencies of other external devices.
The acoustic damping device of the invention adopts the principle that the horn single body is independently arranged on the box body and other devices, thereby essentially preventing the phenomenon that the huge vibration energy of the horn single body under high power or high sensitivity is transmitted to the surrounding mechanisms and bad tone quality is generated. The loudspeaker single body and the damping buffer body, the supporting bracket and the fixed base in the damping bracket component are fastened into one component, the loudspeaker is independent of the box body and the surrounding mechanism through multi-form anti-seismic design, most of vibration energy is absorbed by the elastic buffer of the damping buffer body when the loudspeaker vibrates, and only smaller energy is transmitted. The inherent resonant frequency of loudspeaker monomer can influence this elasticity resonant frequency through the subassembly that forms with damper for this subassembly is kept away from the natural frequency of box and surrounding mechanism, thereby obtains better shock attenuation effect. Finally, the connecting part of the damping mechanism is sealed and fastened with the box body, a loudspeaker sound box with an independent sealed box body is formed, and the acoustic effect is further improved through the design of the sound guide cone. The use of the acoustic damping mechanism on the voice interaction equipment ensures the problems of air leakage of the loudspeaker, unobvious damping effect, poor anti-fatigue capability and the like, thereby improving the performance and yield of the equipment.
Under the situation that the requirement of voice interaction performance is higher and higher, people are more and more concerned about the pursuit of high-quality sound sources and the requirement of excellent multi-speaking performance of microphone pickup and loudspeaker sounding under the same equipment and the same work. The acoustic damping mechanism in the invention solves the problems of vibration noise generated by sound playing and noise feedback caused by sound pickup of a multi-microphone array from the source, thereby improving the tone quality of a sound box and simultaneously recording the feedback of a high-quality sound source in the same equipment. Through the design, better sound quality feedback such as no noise, no tail sound consistent with a standard sound source and the like is displayed through the sound recording of a person, and the sound quality feedback is shown in the attached figure 1 (b).
Claims (10)
1. An acoustic damping device is characterized by comprising a shell, a damping mechanism and a loudspeaker, wherein the damping mechanism comprises a damping piece, a first mounting plate and a second mounting plate; the central surface of the damping mechanism is provided with a first mounting hole, the peripheral edge of the damping mechanism is provided with a second mounting hole, the damping piece comprises a buffering part which surrounds the edge of the first mounting hole to form concave and convex, the buffering part extends towards one side of the first mounting hole to form a first connecting part connected with the first mounting plate, the first connecting part is connected with the horn, the buffering part extends towards one side away from the first mounting hole to form a second connecting part connected with the second mounting plate, and the second connecting part is connected with the shell;
the first mounting plate and the first connecting part are integrally formed or detachably connected, and the second mounting plate and the second connecting part are integrally formed or detachably connected;
the buffer part is used for absorbing the vibration energy of the horn and avoiding the vibration energy of the horn from being transmitted to the shell, the pickup of an external microphone or the natural frequency of other external equipment; the distance between the first connecting part and the horn is adjusted, and the concave-convex curvature of the buffer part is adjusted to adjust the vibration energy transferred by the horn.
2. The acoustic damping device of claim 1, wherein the damping mechanism is one of circular, square, contoured, or solid; the buffer part is arranged in a concave-convex mode of a peak valley shape, a wave shape, a folded ring shape or an m shape; wherein, the buffer mechanism adopts the forward direction to assemble on the shell or reverse direction to assemble on the shell.
3. The acoustic damping device of claim 1, wherein one or more of the first mounting plate, the second mounting plate, and the buffer are made of an elastic material, wherein the first mounting plate, the second mounting plate, and the buffer are made of the same or different materials.
4. The acoustic damping device of claim 1, wherein the first mounting plate, the second mounting plate, and the cushioning portion have the same or different stiffness.
5. The acoustic damping device of claim 1, wherein the first mounting plate, the second mounting plate, and the cushioning portion have the same or different thicknesses.
6. The acoustic damping device of claim 1, further comprising a sound cone disposed on a side of the buffer facing away from the housing, wherein an apex of the sound cone is disposed toward the second mounting hole and the horn.
7. The acoustic damping device of claim 1, wherein the housing comprises an upper shell and a lower shell, the upper shell and the lower shell being ultrasonically welded.
8. An assembly process of an acoustic damping device, for assembling the acoustic damping device according to any one of claims 1 to 7, the assembly process comprising:
connecting the first connecting part with the horn in a fastening mode;
the second connecting part is fixed on the shell in a fastening mode, so that the loudspeaker and the shell are independent at intervals, and the first connecting part and the second connecting part are buffered through the buffering part, so that vibration energy of the loudspeaker is prevented from being transmitted to the shell and the pickup of an external microphone or the inherent frequency of other external equipment.
9. The process of assembling an acoustic damping device according to claim 1, wherein the step of connecting the first connection portion to the horn by fastening further comprises:
mounting the first mounting plate on the first connecting portion, or integrally molding the first mounting plate on the first connecting portion;
before the step of fixing the second connecting portion to the housing by fastening, the method further includes:
and mounting the second mounting plate on the second connecting portion, or integrally molding the first mounting plate on the first connecting portion.
10. An audio apparatus, wherein the audio apparatus is one of a high-sensitivity horn enclosure, a high-power enclosure, a multi-microphone array enclosure, and a multi-horn combination enclosure, the audio apparatus is provided with the acoustic damping device as claimed in any one of claims 1 to 7, the acoustic damping device is a sealed damping cavity independent from a cabinet of the audio apparatus, and the damping body absorbs vibration energy of the horn, thereby preventing the vibration energy of the horn from being transmitted to a natural frequency of the housing, pickup of an external microphone, or other external devices.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210738060.8A CN115278418A (en) | 2022-06-27 | 2022-06-27 | Acoustic damping device, assembly process thereof and audio equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210738060.8A CN115278418A (en) | 2022-06-27 | 2022-06-27 | Acoustic damping device, assembly process thereof and audio equipment |
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| CN115278418A true CN115278418A (en) | 2022-11-01 |
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| CN202210738060.8A Pending CN115278418A (en) | 2022-06-27 | 2022-06-27 | Acoustic damping device, assembly process thereof and audio equipment |
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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| CN215734720U (en) * | 2021-10-09 | 2022-02-01 | 深圳市高声高电子有限公司 | Prevent mutual interference's many loudspeaker audio amplifier |
| CN216357143U (en) * | 2021-11-25 | 2022-04-19 | 上海闻泰信息技术有限公司 | Sound box equipment |
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| KR101389691B1 (en) * | 2014-02-13 | 2014-04-29 | 주식회사 블루콤 | Bone conduction speaker unit for reducing noise by magnet fluid |
| CN109089179A (en) * | 2018-08-08 | 2018-12-25 | 苏州佳世达光电有限公司 | A kind of anti-loudspeaker resonance support construction, mould group and projector |
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| CN213028451U (en) * | 2020-10-27 | 2021-04-20 | 东莞泰升音响科技有限公司 | Array microphone large-scale teleconference extensible communication Bluetooth sound box |
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