CN219552198U - Air permeability measuring device of sound ornament - Google Patents
Air permeability measuring device of sound ornament Download PDFInfo
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- CN219552198U CN219552198U CN202223423150.2U CN202223423150U CN219552198U CN 219552198 U CN219552198 U CN 219552198U CN 202223423150 U CN202223423150 U CN 202223423150U CN 219552198 U CN219552198 U CN 219552198U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
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Abstract
The utility model belongs to the technical field of intelligent sound, and provides a ventilation property measuring device of a sound ornament, which comprises a sound generating subsystem, a positioning jig, a sound pressure measuring subsystem and a driving mechanism, wherein the sound generating subsystem is arranged on one side of the sound ornament and is used for generating sweep frequency sound to the sound ornament in motion, the positioning jig seals the sound generating subsystem so as to shield environmental noise to interfere with the sweep frequency sound, the sound pressure measuring subsystem is arranged on one side of the sound generating subsystem and is used for measuring the sound pressure level of the sweep frequency sound transmitted by the sound ornament in motion, and the driving mechanism is arranged on one side of the sound ornament and is used for connecting the sound ornament to drive the sound ornament to be positioned between the sound generating subsystem and the sound pressure measuring subsystem, so that the ventilation property of the ornament is measured by utilizing the sound pressure level of the sweep frequency sound transmitted by the sound ornament, and adverse phenomena such as sound deterioration, distortion, noise or vibration sound and the like caused by disqualification of an opening of the sound ornament are avoided.
Description
Technical Field
The utility model relates to the technical field of intelligent sound equipment, in particular to a ventilation measuring device for a sound ornament.
Background
In the prior art, in order to make the outward appearance of stereo set have aesthetic feeling, promote the user to the good sensitivity of stereo set product, and then promote the market competition of stereo set product, can set up the embellishment of trompil fretwork on the body structure of stereo set product generally. The open pore setting of embellishment is nevertheless can improve the outward appearance of stereo set, but because the trompil of embellishment can take place the circulation of air, and the difference in trompil directly influences the gas permeability of embellishment, if the trompil is improper, will cause tone quality to become poor, can even have the bad phenomenon emergence such as distortion, noise or sound that shakes. In practice, most sound designs do not pay attention to the ventilation problem of the ornament, and therefore, there is no technical means for measuring the ventilation of the ornament.
In summary, the conventional intelligent sound technology has the technical problems that the ventilation measure for the ornament is lacking, the sound quality is easily deteriorated, and the adverse phenomena such as distortion, noise or vibration sound occur.
Disclosure of Invention
In order to solve the technical problems, the utility model provides the following scheme.
In one aspect, the present utility model provides an air permeability measurement device for an acoustic ornament, including:
the sound production subsystem is arranged at one side of the sound ornament and is used for producing sweep frequency sound to the sound ornament in motion;
the positioning jig seals the sounding subsystem to shield environmental noise from interfering the frequency sweeping sound;
the sound pressure measurement subsystem is arranged on one side of the sounding subsystem and is used for measuring the sound pressure level of the sweep frequency sound transmitted by the acoustic ornament in motion;
the driving mechanism is arranged on one side of the sound ornament and used for being connected with the sound ornament to drive the sound ornament to be positioned between the sounding subsystem and the sound pressure measuring subsystem.
Further, the air permeability measuring device of the acoustic ornament also comprises a control module; the control module is connected with the sounding subsystem, the sound pressure measurement subsystem and the driving mechanism through a control interface.
Further, a distance between the measurement subsystem and the sound emitting subsystem is adjustable.
Further, the sound emitting subsystem includes a frequency scanner and a speaker; the loudspeaker is in signal connection with the sweep generator and is used for restoring the sweep frequency signal of the sweep generator into sweep frequency sound.
Further, the speakers include a first speaker, a second speaker, and a third speaker; the first speaker, the second speaker and the third speaker are all in signal connection with the scanner.
Further, the positioning jig comprises a sealing cavity and a sound transmission port; the sound transmission port is formed on one side of the sealing cavity; the sound production subsystem is positioned in the sealing cavity, and the sound transmission port faces the sound pressure measurement subsystem.
Further, the sound pressure measurement subsystem comprises a sound level meter and a communication interface; the sound level meter is connected with the communication interface and is used for measuring the sound pressure level of the sweep frequency sound.
Further, the driving mechanism drives the acoustic ornament to rotate.
Further, the drive mechanism includes a motor and a contact; the motor is connected with the contact piece and drives the sound ornament connected with the contact piece to move.
Further, the sound ornament is a mesh cloth or an iron net.
Compared with the prior art, the utility model has the beneficial effects that:
the utility model provides an air permeability measuring device of an acoustic ornament, which comprises an acoustic subsystem, a positioning jig, a sound pressure measuring subsystem and a driving mechanism, wherein the acoustic subsystem is arranged on one side of the acoustic ornament and is used for sending sweep frequency sound to the acoustic ornament in motion, the positioning jig seals the acoustic subsystem so as to shield environmental noise and interfere with the sweep frequency sound, the sound pressure measuring subsystem is arranged on one side of the acoustic subsystem and is used for measuring the sound pressure level of the sweep frequency sound transmitted by the acoustic ornament in motion, and the driving mechanism is arranged on one side of the acoustic ornament and is used for connecting the acoustic ornament to drive the acoustic ornament to be positioned between the acoustic subsystem and the sound pressure measuring subsystem, so that the air permeability of the ornament is measured by utilizing the sound pressure level of the sweep frequency sound transmitted by the acoustic ornament, and adverse phenomena such as acoustic quality degradation, distortion, noise or vibration sound and the like caused by unqualified opening of the acoustic ornament are avoided.
Drawings
FIG. 1 is a schematic diagram of a ventilation measuring device for an acoustic ornament;
fig. 2 is a schematic flow chart of air permeability measurement of the acoustic ornament.
Reference numerals illustrate:
1. a sound subsystem;
2. positioning jig;
3. a sound pressure measurement subsystem;
4. a driving mechanism;
5. a control module;
6. and (5) an acoustic ornament.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
The terms "first," "second," "third," "fourth" and the like in the description and in the claims and in the above drawings, if any, are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments of the utility model described herein may be implemented in sequences other than those illustrated or otherwise described herein. It should be understood that, in various embodiments of the present utility model, the sequence number of each process does not mean that the execution sequence of each process should be determined by its functions and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present utility model. It should be understood that in the present utility model, "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements that are expressly listed or inherent to such process, method, article, or apparatus. It should be understood that in the present utility model, "plurality" means two or more. "and/or" is merely an association relationship describing an association object, and means that three relationships may exist, for example, and/or B may mean: a exists alone, A and B exist together, and B exists alone. The character "/" generally indicates that the context-dependent object is an "or" relationship. "comprising A, B and C", "comprising A, B, C" means that all three of A, B, C comprise, "comprising A, B or C" means that one of the three comprises A, B, C, and "comprising A, B and/or C" means that any 1 or any 2 or 3 of the three comprises A, B, C. It should be understood that in the present utility model, "B corresponding to a", "a corresponding to B", or "B corresponding to a" means that B is associated with a, from which B can be determined. Determining B from a does not mean determining B from a alone, but may also determine B from a and/or other information. The matching of A and B is that the similarity of A and B is larger than or equal to a preset threshold value. The technical scheme of the utility model is described in detail below by specific examples. The following embodiments may be combined with each other, and some embodiments may not be repeated for the same or similar concepts or processes.
Referring to fig. 1, an embodiment of the present utility model provides an air permeability measurement device for an acoustic ornament, including an acoustic subsystem 1, a positioning jig 2, a sound pressure measurement subsystem 3 and a driving mechanism 4, where the acoustic subsystem 1 is disposed on one side of the acoustic ornament 6 and is used for emitting sweep frequency sound to the acoustic ornament 6 in motion, the positioning jig 2 seals the acoustic subsystem 1 to shield ambient noise from interfering with the sweep frequency sound, the sound pressure measurement subsystem 3 is disposed on one side of the acoustic subsystem 1 and is used for measuring the sound pressure level of the sweep frequency sound transmitted by the acoustic ornament 6 in motion, and the driving mechanism 4 is disposed on one side of the acoustic ornament 6 and is used for connecting the acoustic ornament 6 to drive the acoustic ornament 6 between the acoustic subsystem 1 and the sound pressure measurement subsystem 3.
In this embodiment, the sound generating subsystem 1 sends out the sweep frequency sound to the moving sound ornament 6, the positioning jig 2 seals the sound generating subsystem 1 to shield the environment noise from interfering with the sweep frequency sound, the sound pressure measuring subsystem 3 measures the sound pressure level of the sweep frequency sound transmitted by the moving sound ornament 6, the driving mechanism 4 connects the sound ornament 6 to drive the sound ornament 6 to be located between the sound generating subsystem 1 and the sound pressure measuring subsystem 3, thereby utilizing the sound pressure level of the sweep frequency sound transmitted by the sound ornament 6 to measure the ventilation property of the ornament, avoiding bad phenomena such as poor sound quality, distortion, noise or vibration sound caused by unqualified openings of the sound ornament 6.
In some embodiments, the air permeability measuring device of the acoustic ornament further comprises a control module 5; the control module 5 is connected with the sounding subsystem 1, the sound pressure measurement subsystem 3 and the driving mechanism 4 through control interfaces. In this embodiment, the control module 5 is connected to the sounding subsystem 1, the sound pressure measurement subsystem 3 and the driving mechanism 4 through the control interface, so that signal transmission and motion control between the control module 5 and the sounding subsystem 1, the sound pressure measurement subsystem 3 and the driving mechanism 4 can be realized, and thus, the automation of the air permeability measurement of the acoustic ornament can be realized.
In some embodiments, the distance between the measurement subsystem and the sound emitting subsystem 1 is adjustable. In this embodiment, since the distance between the measurement subsystem and the sounding subsystem 1 is adjustable, multiple sets of sound pressure level measurements at different distances can be performed, thereby improving measurement accuracy.
In some embodiments, the sound emitting subsystem 1 includes a frequency scanner and a speaker; the loudspeaker is in signal connection with the sweep generator and is used for restoring the sweep frequency signal of the sweep generator into sweep frequency sound. Further, the speakers include a first speaker, a second speaker, and a third speaker; the first speaker, the second speaker and the third speaker are all in signal connection with the scanner. In this embodiment, since the speaker is in signal connection with the sweep generator, the sweep signal of the sweep generator can be restored to be sweep sound, and the sweep sound is utilized to penetrate through the openings of the acoustic ornaments 6, so that the different opening ratios can make the sound pressure levels of the sweep sound measured in the sound pressure measurement subsystem 3 different, thereby obtaining the ventilation performance of different acoustic ornaments 6.
In some embodiments, the sound pressure measurement subsystem 3 comprises a sound level meter and a communication interface; the sound level meter is connected with the communication interface and is used for measuring the sound pressure level of the sweep frequency sound. In this embodiment, since the sound level meter is connected to the communication interface, the sound pressure level of the sweep frequency sound of the opening of the sound transmission ornament 6 can be measured, so that the air permeability of different sound ornaments 6 can be obtained according to different sound pressure levels.
In some embodiments, the positioning jig 2 comprises a sealed cavity and a sound transmission port; the sound transmission port is formed on one side of the sealing cavity; the sound production subsystem 1 is located in the sealing cavity, and the sound transmission port faces the sound pressure measurement subsystem 3. In this embodiment, since the sounding subsystem 1 is located in the sealing cavity, the sound transmission port faces the sound pressure measurement subsystem 3, the sealing cavity can seal the sounding subsystem 1, so that noise is avoided from entering, and the sound transmission port can smoothly transmit sweep frequency sound, so that errors are reduced.
In some embodiments, the driving mechanism 4 drives the acoustic ornament 6 to rotate. Further, the driving mechanism 4 includes a motor and a contact; the motor is connected with the contact piece and drives the acoustic ornament 6 connected with the contact piece to move. In addition, the acoustic ornament 6 is a mesh cloth or an iron mesh. In this embodiment, since the driving mechanism 4 drives the acoustic ornament 6 to rotate, the acoustic ornament 6 can be rotated by any angle, for example, 360 °, so that the effect of measuring the acoustic ornament 6 comprehensively is achieved.
It should be noted that in the above embodiment, the air tightness of the acoustic ornament 6 is measured, the sound pressure level when the acoustic ornament 6 is not present between the acoustic subsystem 1 and the sound pressure measuring subsystem 3, for example, the sound pressure level when there is no iron net or mesh cloth, then the acoustic ornament 6 is driven to move by the rotating mechanism, the sound pressure levels of different frequencies are measured by sweeping the frequency between the acoustic subsystem 1 and the sound pressure measuring subsystem 3, then the sound pressure difference between the mesh cloth with and without mesh cloth is obtained, and an indirect qualification judgment is made on the air permeability of the mesh cloth according to the set reasonable difference. Because the ventilation property measuring device of the acoustic ornament provided by the above embodiment comprises the sounding subsystem 1, the positioning jig 2, the sound pressure measuring subsystem 3 and the driving mechanism 4, the sounding subsystem 1 is arranged on one side of the acoustic ornament 6 and is used for sending out sweep frequency sound to the acoustic ornament 6 in motion, the positioning jig 2 seals the sounding subsystem 1 to shield environmental noise from interfering with the sweep frequency sound, the sound pressure measuring subsystem 3 is arranged on one side of the sounding subsystem 1 and is used for measuring the sound pressure level of the sweep frequency sound transmitted by the acoustic ornament 6 in motion, the driving mechanism 4 is arranged on one side of the acoustic ornament 6 and is used for connecting the acoustic ornament 6 to drive the acoustic ornament 6 to be positioned between the sounding subsystem 1 and the sound pressure measuring subsystem 3, thereby measuring the ventilation property of the acoustic ornament by utilizing the sound pressure level of the sweep frequency sound transmitted by the acoustic ornament 6 and avoiding bad acoustic quality caused by unqualified openings of the acoustic ornament 6, and generating bad phenomena such as distortion, noise or vibration sound.
With reference to fig. 2, on the basis of the above embodiments, the present utility model also provides the following further embodiments.
In a further embodiment, a test of the no-sound ornament 6 is performed between the sound emitting subsystem 1 and the sound pressure measuring subsystem 3 to obtain a sound pressure level of the no-sound ornament 6 test, for example, a no-cloth test of no mesh cloth is performed. The test of the acoustic ornament 6 is performed between the sounding subsystem 1 and the sound pressure measurement subsystem 3 to obtain the sound pressure level of the test of the acoustic ornament 6, for example, the test of the cloth with the mesh cloth is performed. Performing difference operation on the sound pressure level tested by the sound-free ornament 6 and the sound pressure level tested by the sound-free ornament 6 to obtain a sound pressure difference; comparing the sound pressure difference with the qualified difference range to judge whether the air permeability of the sound ornament 6 is qualified or not, if the sound pressure difference falls within the qualified difference range, obtaining that the air permeability of the sound ornament 6 is qualified, further stretching the sound ornament 6 to repeatedly perform the air permeability test of the sound ornament 6, and ending the test when the air permeability test result of the sound ornament 6 after further stretching is kept to be qualified; if the sound pressure difference does not fall within the acceptable difference range, the air permeability of the acoustic ornament 6 is not acceptable, and then the acoustic ornament 6 is tested between the sounding subsystem 1 and the sound pressure measurement subsystem 3 again, so as to obtain the sound pressure level tested by the acoustic ornament 6, and further judge whether the air permeability of the acoustic ornament 6 is acceptable or not again.
In this embodiment, by performing the test of the acoustic ornament 6 and the test of the acoustic ornament 6 between the sounding subsystem 1 and the sound pressure measurement subsystem 3, further obtaining the sound pressure level of the test of the acoustic ornament 6 and the sound pressure level of the test of the acoustic ornament 6 to calculate the sound pressure difference, and comparing the sound pressure difference with the qualified difference range to determine whether the air permeability of the acoustic ornament 6 is qualified, thereby realizing the air permeability measurement of the acoustic ornament, and avoiding the bad phenomena of acoustic quality, distortion, noise or vibration sound and the like caused by the unqualified opening of the acoustic ornament 6.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the same; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the utility model.
Claims (10)
1. An air permeability measuring device of a sound ornament, characterized by comprising:
the sound production subsystem is arranged at one side of the sound ornament and is used for producing sweep frequency sound to the sound ornament in motion;
the positioning jig seals the sounding subsystem to shield environmental noise from interfering the frequency sweeping sound;
the sound pressure measurement subsystem is arranged on one side of the sounding subsystem and is used for measuring the sound pressure level of the sweep frequency sound transmitted by the acoustic ornament in motion;
the driving mechanism is arranged on one side of the sound ornament and used for being connected with the sound ornament to drive the sound ornament to be positioned between the sounding subsystem and the sound pressure measuring subsystem.
2. The air permeability measurement device for an acoustic ornament according to claim 1, further comprising a control module; the control module is connected with the sounding subsystem, the sound pressure measurement subsystem and the driving mechanism through a control interface.
3. The device for measuring the air permeability of an acoustic ornament according to claim 1, wherein the distance between said measuring subsystem and said sound emitting subsystem is adjustable.
4. The air permeability measurement device for an acoustic ornament of claim 1, wherein the sound emitting subsystem comprises a frequency scanner and a speaker; the loudspeaker is in signal connection with the sweep generator and is used for restoring the sweep frequency signal of the sweep generator into sweep frequency sound.
5. The air permeability measuring device for an acoustic ornament according to claim 4, wherein the speaker includes a first speaker, a second speaker, and a third speaker; the first speaker, the second speaker and the third speaker are all in signal connection with the scanner.
6. The air permeability measurement device for acoustic ornaments according to any one of claims 1 to 5, wherein said positioning jig comprises a seal chamber and an acoustic transmission port; the sound transmission port is formed on one side of the sealing cavity; the sound production subsystem is positioned in the sealing cavity, and the sound transmission port faces the sound pressure measurement subsystem.
7. The air permeability measurement device for an acoustic ornament according to any one of claims 1 to 5, wherein the sound pressure measurement subsystem includes a sound level meter and a communication interface; the sound level meter is connected with the communication interface and is used for measuring the sound pressure level of the sweep frequency sound.
8. The air permeability measuring device for an acoustic ornament according to any one of claims 1 to 5, wherein the driving mechanism drives the acoustic ornament to rotate.
9. The air permeability measurement device for an acoustic ornament according to any one of claims 1 to 5, wherein the driving mechanism includes a motor and a contact; the motor is connected with the contact piece and drives the sound ornament connected with the contact piece to move.
10. The air permeability measuring device for an acoustic ornament according to any one of claims 1 to 5, wherein the acoustic ornament is a mesh cloth or an iron mesh.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223423150.2U CN219552198U (en) | 2022-12-19 | 2022-12-19 | Air permeability measuring device of sound ornament |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223423150.2U CN219552198U (en) | 2022-12-19 | 2022-12-19 | Air permeability measuring device of sound ornament |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219552198U true CN219552198U (en) | 2023-08-18 |
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ID=87703488
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223423150.2U Active CN219552198U (en) | 2022-12-19 | 2022-12-19 | Air permeability measuring device of sound ornament |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219552198U (en) |
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2022
- 2022-12-19 CN CN202223423150.2U patent/CN219552198U/en active Active
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