CN215072984U - Acoustic material testing tool assembly - Google Patents
Acoustic material testing tool assembly Download PDFInfo
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- CN215072984U CN215072984U CN202120796674.2U CN202120796674U CN215072984U CN 215072984 U CN215072984 U CN 215072984U CN 202120796674 U CN202120796674 U CN 202120796674U CN 215072984 U CN215072984 U CN 215072984U
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- bottom plate
- tool assembly
- testing tool
- acoustic material
- middle frame
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Abstract
The utility model provides an acoustic material test fixture subassembly, including roof, center, bottom plate and thimble, roof, center, bottom plate are used for loading the sample and the speaker monomer that await measuring, the center is in the roof with between the bottom plate, the thimble is used for connecting outside test equipment, advantage that stability is good. Can be widely used for the development of sound absorbing material, can be for the improvement effect of the different sound absorbing material of horizontal contrast to speaker module acoustic performance, the adaptation is simultaneously verified the sound absorbing material and is in the not characterization of the acoustic performance of equidimension speaker rear chamber, and vertical research improves the improvement effect of certain specific sound absorbing material to speaker module acoustic performance, provides quick, convenient, effectual data support.
Description
Technical Field
The utility model relates to a test component, concretely relates to acoustic material test frock subassembly.
Background
With the increasingly thinner and lighter wearable electronic products, the conventional sound-absorbing material cannot meet the acoustic performance requirements of the micro-speaker. Aiming at the technical problem, novel porous sound-absorbing materials (active carbon, white carbon black, active silicon dioxide, zeolite powder, blocks and the like) are developed, the technology utilizes the adsorption and release capacity of the sound-absorbing materials to gas, the virtual increase of the space of a back cavity of a loudspeaker is realized, the resonance frequency of the loudspeaker module is reduced, the sound pressure level of a low frequency band is improved, and therefore the acoustic performance of the loudspeaker module is improved. Because the sound-absorbing materials are various in types and forms, no universal detection device and method for testing the effect of the sound-absorbing materials on improving the acoustic performance of the micro-speaker product exists at present, technicians only can sequentially install the sound-absorbing materials in the acoustic product and then test the change values of the sound-absorbing materials before and after the acoustic performance of the micro-speaker product to judge the quality of the sound-absorbing materials on the effect of improving the acoustic performance. The testing process is complex and inefficient, and the development cycle is therefore forced to be extended.
SUMMERY OF THE UTILITY MODEL
In order to overcome the not enough of prior art, the utility model provides a testing process is simple and convenient, efficient acoustic material test fixture.
The utility model discloses a following technical scheme realizes: an acoustic material testing tool assembly comprises a top plate, a middle frame, a bottom plate and an ejector pin, wherein the top plate, the middle frame and the bottom plate are used for loading a sample to be tested and a loudspeaker single body, the middle frame is arranged between the top plate and the bottom plate, the ejector pin is used for connecting external testing equipment, the ejector pin is connected with the bottom plate, and the middle frame is provided with a hollow part for loading the sample to be tested; and the bottom plate is provided with an accommodating groove for embedding the loudspeaker monomer.
The top plate is connected with the middle frame through the first positioning device, the bottom plate is connected with the middle frame through the second positioning device, the hollow part of the middle frame is adjustable in size, the accommodating groove of the bottom plate is adjustable in size, a sealing part is arranged between the top plate and the middle frame, the sealing part is soft rubber, the dustproof cover is further included, and the dustproof cover is fixedly connected with the bottom plate and is mesh cloth.
Compared with the prior art, the utility model discloses the frock of test has the advantage that dismouting test sample is simple, stability is good. The development that can extensively be used for sound absorbing material, can be for the improvement effect of the different sound absorbing material of horizontal contrast to speaker module acoustic performance, the characterization of acoustic performance of sound absorbing material at the not equidimension speaker rear chamber is verified in the adaptation simultaneously, and vertical research improves the improvement effect of certain specific sound absorbing material to speaker module acoustic performance, provides quick, convenient, effectual data support, can show the development cycle who shortens the new product, stops the waste of a large amount of manpower and material resources.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
In the figure: 1 is the roof, 2 is the bottom plate, 3 is the speaker, 4 is the center, 5 is the sealing part, 21 is the thimble, 22 is the bottom plate holding tank, 23 is first positioner, 24 is the dust cover, 25 is the second positioner.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and the detailed description, and it should be noted that the embodiments or technical features described below can be arbitrarily combined to form a new embodiment without conflict.
An acoustic material testing tool assembly is provided with a top plate 1 and a bottom plate 2, and a middle frame 4 is arranged between the top plate 1 and the bottom plate 2, wherein in some embodiments, the top plate 1, the bottom plate 2 and the middle frame 4 are all made of sound insulation materials. In some embodiments, the middle frame 4 is an insulating and sound insulating material. The base plate 2 is provided with a thimble 21 for connecting an external test device. The top plate 1 is connected to the middle frame by means of first positioning means 23.
The base plate 2 is connected to the intermediate frame 4 by means of second positioning means 25. The first positioning means 23 and the second positioning means 25 may be identical or different. The first positioning device 23 and the second positioning device 25 include, but are not limited to, bolts, screws, clamps.
The base plate 2 is provided with a base plate accommodating groove 22. The bottom plate accommodating groove 22 is for fitting the speaker unit 3. The height, width, length, and other dimensions of the bottom plate accommodating groove 22 may be preset or may be adjusted at any time. In some embodiments, the outer frame of the base plate 2 is made of a rigid material and the inner frame is made of an elastic material (e.g., sponge, etc.), and the dimensions of the base plate receiving groove 22 can be adjusted by compressing the elastic material. In some embodiments, the outer frame of rigid material of the base plate 2 is provided with a sliding groove, the inner frame of rigid material is connected with the outer frame through the sliding groove, and the sizes of the base plate accommodating grooves 22 can be adjusted by changing the positions of the inner frames in the sliding groove.
The center of the middle frame 4 is provided with a hollow part for loading a material sample to be tested. The height, width, length and other dimensions of the hollow part of the middle frame 4 can be preset according to a sample to be measured and can also be adjusted at any time.
In some embodiments, the outer frame of the middle frame 4 is made of rigid material, the inner frame is made of elastic material (such as sponge, etc.), and the sizes of the hollow parts can be adjusted by compressing the elastic material. In some embodiments, the outer frame made of rigid material of the middle frame 4 is provided with sliding grooves, the inner frame made of rigid material is connected with the outer frame through the sliding grooves, and the sizes of the hollow parts can be adjusted by changing the positions of the inner frame in the sliding grooves. The hollow structure of the middle frame 4 and the top plate 1 are sealed to form a cavity simulating a rear acoustic cavity of the loudspeaker. In some embodiments, a seal 5 is also provided between the top plate 1 and the middle frame 4. The sealing portion 5 is used to further ensure the sealing property of the rear acoustic chamber. In some embodiments, the seal 5 may be soft glue.
In the test process, the cavity of the speaker monomer 3 faces upward, the vibrating diaphragm part faces downward and is embedded into the bottom plate accommodating groove 22, and the upper end surface of the speaker monomer 3 is flush with the lower end surface of the middle frame 4. The speaker 3 is connected to the thimble 21 through the base plate 2. In some embodiments, the chamber portion of the loudspeaker 3 is provided with a permeable partition for isolating the front and rear chambers. In some embodiments, the permeable separator is a mesh.
In some embodiments, a dust cover 24 is also provided on the exterior of the base plate 2. The dust cover 24 is secured to the outer surface of the base plate 2 by second retaining means 25. The dust cover 24 is used not only for dust prevention but also for protecting the diaphragm of the speaker 3. The dust cover 24 includes, but is not limited to, mesh.
The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention cannot be limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are all within the protection scope of the present invention.
Claims (8)
1. The utility model provides an acoustic material test fixture subassembly, includes roof, center, bottom plate and thimble, roof, center, bottom plate are used for loading the sample and the speaker monomer that await measuring, the center is in the roof with between the bottom plate, the thimble is used for connecting external test equipment, the thimble with the bottom plate is connected its characterized in that: the middle frame is provided with a hollow part for loading a material sample to be tested; and the bottom plate is provided with an accommodating groove for embedding the loudspeaker monomer.
2. The acoustic material testing tool assembly of claim 1, wherein: the top plate is connected with the middle frame through a first positioning device, and the bottom plate is connected with the middle frame through a second positioning device.
3. The acoustic material testing tool assembly of claim 1, wherein: the hollow part of the middle frame is adjustable in size.
4. The acoustic material testing tool assembly of claim 1, wherein: the size of the accommodating groove of the bottom plate is adjustable.
5. The acoustic material testing tool assembly of claim 1, wherein: and a sealing part is arranged between the top plate and the middle frame.
6. The acoustic material testing tool assembly of claim 5, wherein: the sealing part is soft glue.
7. The acoustic material testing tool assembly of claim 1, wherein: the dustproof cover is fixedly connected with the bottom plate.
8. The acoustic material testing tool assembly of claim 7, wherein: the dust cover is a mesh cloth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120796674.2U CN215072984U (en) | 2021-04-16 | 2021-04-16 | Acoustic material testing tool assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120796674.2U CN215072984U (en) | 2021-04-16 | 2021-04-16 | Acoustic material testing tool assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215072984U true CN215072984U (en) | 2021-12-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120796674.2U Active CN215072984U (en) | 2021-04-16 | 2021-04-16 | Acoustic material testing tool assembly |
Country Status (1)
| Country | Link |
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| CN (1) | CN215072984U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115297422A (en) * | 2022-10-08 | 2022-11-04 | 武汉珈声科技有限公司 | Method for analyzing performance of acoustic enhancement material of micro-speaker |
-
2021
- 2021-04-16 CN CN202120796674.2U patent/CN215072984U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115297422A (en) * | 2022-10-08 | 2022-11-04 | 武汉珈声科技有限公司 | Method for analyzing performance of acoustic enhancement material of micro-speaker |
| CN115297422B (en) * | 2022-10-08 | 2022-12-20 | 武汉珈声科技有限公司 | Method for analyzing performance of acoustic enhancement material of micro-speaker |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 212000 No.16 Yangzijiang Road, Dagang, New District, Zhenjiang City, Jiangsu Province Patentee after: Zhenjiang best new material Co.,Ltd. Address before: 212000 No.16 Yangzijiang Road, Dagang, New District, Zhenjiang City, Jiangsu Province Patentee before: Zhenjiang Best New Material Co.,Ltd. |
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| CP02 | Change in the address of a patent holder | ||
| CP02 | Change in the address of a patent holder |
Address after: No. 7, Songlinshan Road, Dagang, Zhenjiang New District, Zhenjiang City, Jiangsu Province, 212000 Patentee after: Zhenjiang best new material Co.,Ltd. Address before: 212000 No.16 Yangzijiang Road, Dagang, New District, Zhenjiang City, Jiangsu Province Patentee before: Zhenjiang best new material Co.,Ltd. |