CN109474880A - The sound proof box of loudspeaker acoustical testing - Google Patents
The sound proof box of loudspeaker acoustical testing Download PDFInfo
- Publication number
- CN109474880A CN109474880A CN201811625826.1A CN201811625826A CN109474880A CN 109474880 A CN109474880 A CN 109474880A CN 201811625826 A CN201811625826 A CN 201811625826A CN 109474880 A CN109474880 A CN 109474880A
- Authority
- CN
- China
- Prior art keywords
- loudspeaker
- proof box
- sound proof
- jig
- acoustical testing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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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
- H04R29/00—Monitoring arrangements; Testing arrangements
- H04R29/001—Monitoring arrangements; Testing arrangements for loudspeakers
Abstract
The invention discloses a kind of sound proof boxs of loudspeaker acoustical testing, enclosed housing including rectangular parallelepiped structure, the cabinet includes the shell being made of outer housing and the inner housing being connected with the outer housing, acoustical cotton is filled between the outer housing and inner housing, the inner housing is provided with the microphone of the jig for placing loudspeaker to be tested, the information of acoustic wave for acquiring the loudspeaker around accommodating cavity is formed in the accommodating cavity.Compared with the existing technology, the interference present invention reduces external environment noise to test effect to improve testing reliability and testing efficiency, and then promotes production capacity, reduces production cost.
Description
Technical field
The present invention relates to loudspeaker technical field more particularly to a kind of sound proof boxs of loudspeaker acoustical testing.
Background technique
Current car horn sound quality judgement, using the sound insulation test case of semi open model, the energization of loudspeaker connects
Connecing device, portion is completed by plug manually outside the enclosure.The pronunciation of loudspeaker is facing towards box house, and the loudspeaker back side is exposed in opening
In environment.After loudspeaker are powered, acoustic software sends test execution order, makes loudspeaker in each frequency range such as low frequency, intermediate frequency and high frequency
It makes a sound, information of acoustic wave is collected by microphone and analyzes it, output waveform figure.
Semi-open sound insulation test case is highly susceptible to the interference of external environment noise, and test result is caused to be distorted, and has not
The loudspeaker shipment of good sound to terminal client risk.Meanwhile manual plug-in connector has certain want to the gimmick of operator
It asks, prevents the phenomenon that scratching flared surface or poor contact occur, operator is easy to appear work fatigue.Due to entirely testing
The frequent manual operation intervention of technique, the reliability and equipment output of test result are all affected, in addition enterprise, modern society
Recruitment cost is high, so as to cause product competitiveness in the market decline.
Summary of the invention
The present invention provides a kind of sound proof box of loudspeaker acoustical testing, it is intended to loudspeaker acoustics testing efficiency and reliability are promoted,
Production capacity is promoted, production cost is reduced.
To achieve the above object, the present invention provides a kind of sound proof box of loudspeaker acoustical testing, the envelope including rectangular parallelepiped structure
Enclosed cabinet, the cabinet include the shell being made of outer housing and the inner housing being connected with the outer housing, described outer
Acoustical cotton is filled between shell and inner housing, the inner housing is provided in the accommodating cavity around accommodating cavity is formed
The microphone of information of acoustic wave for placing the jig of loudspeaker to be tested, for acquiring the loudspeaker.
Further technical solution of the invention is that the inner top of the inner housing is equipped with stretching motion mechanism, described
The jig mounting bracket for being used to install the jig being connected with the stretching motion mechanism is installed in accommodating cavity, it is described
The sound proof box of loudspeaker acoustical testing further includes the front door being connected with the jig mounting bracket, when the stretching motion mechanism by
When moving outside to inside or from inside to outside, the stretching motion mechanism drive the corresponding ecto-entad of the jig mounting bracket or by
It moves from inside to outside, when the movement of stretching motion mechanism ecto-entad inwardly moves to the second position by export-oriented from first position
When, the opening on outer housing described in the preceding door termination.
Further technical solution of the invention is that the stretching motion mechanism includes being installed on the interior top of the inner housing
The sliding rail in portion, sliding block corresponding with the sliding rail, the motor for driving the sliding block to move along the sliding rail, the jig peace
Dress bracket is slideably positioned on the sliding rail by the sliding block.
Further technical solution of the invention is that the jig includes pedestal, and the loudspeaker being installed on the pedestal connect
Connect device cylinder, loudspeaker electrification connector, horizontal extension cylinder and rotation pre- air cylinder.
Further technical solution of the invention be equipped in the jig mounting bracket it is described for clamping and fastening
The quick change elbow of jig presss from both sides.
Further technical solution of the invention is that external electrical interface is provided at the top of the outer housing, described to control
Electrical fast joint is provided in tool mounting bracket, one end of the external electrical interface is connect with external loudspeaker acoustics tester,
The other end is connect with one end of the electrical fast joint, the other end of the electrical fast joint and the loudspeaker connector cylinder,
Loudspeaker electrification connector, horizontal extension cylinder and rotation pre- air cylinder connection.
Further technical solution of the invention is that wedge-shaped acoustical cotton is pasted in the inner housing, the wedge shape sound-absorbing
The depth of cotton is 150mm.
Further technical solution of the invention is to be connected between the outer housing and the inner housing by cylindrical rod
It connects, the diameter of the cylinder rod is 40mm.
Further technical solution of the invention is that the outside of the shell carries out bound edge reinforcing using stainless steel, described
Stainless steel with a thickness of 1mm.
Further technical solution of the invention is that the inner housing, outer housing are made of three folder planks.
The beneficial effects of the present invention are: the sound proof box of loudspeaker acoustical testing of the present invention is through the above technical solutions, include length
The enclosed housing of cube structure, the cabinet include being made of outer housing and the inner housing being connected with the outer housing
Shell is filled with acoustical cotton between the outer housing and inner housing, for the inner housing around accommodating cavity is formed, the accommodating is empty
The microphone of the intracavitary jig being provided with for placing loudspeaker to be tested, information of acoustic wave for acquiring the loudspeaker, reduces
Interference of the external environment noise to test effect to improve testing reliability and testing efficiency, and then promotes production capacity, reduces
Production cost.
Detailed description of the invention
Fig. 1 is the overall structure diagram of the sound proof box of loudspeaker acoustical testing of the present invention；
Fig. 2 is the schematic cross-section of the sound proof box of loudspeaker acoustical testing of the present invention；
Fig. 3 is the structural schematic diagram of jig mounting bracket in the sound proof box of loudspeaker acoustical testing of the present invention；
Fig. 4 is the structural schematic diagram of jig in the sound proof box of loudspeaker acoustical testing of the present invention.
The embodiments will be further described with reference to the accompanying drawings for the realization, the function and the advantages of the object of the present invention.
Specific embodiment
It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not intended to limit the present invention.
In view of the sound insulation test case tested at present car horn is highly susceptible to the interference of external environment noise,
Test result is caused to be distorted, entire test process needs frequent manual intervention, and the reliability and output of test result all can be by
To influence, and testing cost is high, and the present invention proposes a solution as a result,.
Specifically, the present invention proposes a kind of sound proof box of loudspeaker acoustical testing, the sound proof box master of the loudspeaker acoustical testing
To be applied to loudspeaker production test field, especially car horn production test field.The technical solution adopted in the present invention master
If middle and high or woofer is placed in a completely enclosed sound proof box, cooperate automatic docking structure and profession
Acoustical testing software realizes sounding and the acoustics performance test of car horn.
As shown in Figures 1 to 4, the sound proof box of loudspeaker acoustical testing of the present invention includes the enclosed housing 1 of rectangular parallelepiped structure,
The cabinet 1 includes the shell being made of outer housing 2 and the inner housing 3 being connected with the outer housing 2, the outer housing 2
Acoustical cotton 4 is filled between inner housing 3.
The inner housing 3 is provided in the accommodating cavity for placing loudspeaker to be tested around accommodating cavity is formed
The microphone 6 of jig 5, information of acoustic wave for acquiring the loudspeaker.
It is understood that the present invention sets closed for the cabinet 1, and fills out between outer housing 2 and inner housing 3
Acoustical cotton 4 is filled, can reduce interference of the external environment noise to test effect, so that testing reliability and testing efficiency are improved,
And then production capacity is promoted, reduce production cost.
It, as an implementation, can be in institute in order to further avoid interference of the ambient noise environment to test effect
The wedge-shaped acoustical cotton 7 for attaching that depth is 150mm in inner housing 3 is stated, and the outer housing 2 and inner housing is made using three folder planks
3, the outer housing 2 and inner housing 3 are connected by the cylindrical rod that diameter is 40mm.
It should be noted that the diameter of depth and the round rod for the wedge-shaped acoustical cotton 7, the present invention
And be not especially limited, when it is implemented, can determine according to actual needs.In the present invention, the acoustical cotton 4 can be selected bar
This husband's acoustical cotton 4.
In order to guarantee the loudspeaker acoustical testing sound proof box fixing and stability, the present invention is outer the shell
Side carries out bound edge reinforcing using stainless steel 8, wherein the thickness of the stainless steel 8 can be set according to actual needs, such as can be with
It is set as 1mm.
Further, as a kind of present invention, the inner top of the inner housing 3 is equipped with stretching motion mechanism 9, the appearance
Empty the intracavitary jig mounting bracket 10 for being used to install the jig 5 for being equipped with and being connected with the stretching motion mechanism 9, institute
The sound proof box for stating loudspeaker acoustical testing further includes the front door 11 being connected with the jig mounting bracket 10, when the stretching motion
9 ecto-entad of mechanism or when moving from inside to outside, the stretching motion mechanism 9 drive the jig mounting bracket 10 corresponding by
It moves outside to inside or from inside to outside, when 9 ecto-entad of stretching motion mechanism movement is inwardly moved from first position by export-oriented
When to the second position, the opening on the outer housing 2 is closed at the front door 11.
When it is implemented, the quick change elbow folder for clamping and fastening the jig 5 can be installed in the mounting bracket
12。
In addition, the present invention is arranged in the side adjacent with the front door 11 of the outer housing 2 for the ease of user's operation
There is side door 13.
Further, the stretching motion mechanism 9 includes sliding rail and the institute for being installed on the inner top of the inner housing 3
The corresponding sliding block of sliding rail, the motor for driving the sliding block to move along the sliding rail are stated, the jig mounting bracket 10 passes through
The sliding block is slideably positioned on the sliding rail.
Further, the jig 5 includes pedestal 14, be installed on loudspeaker connector cylinder 15 on the pedestal 14,
Loudspeaker electrification connector 16, horizontal extension cylinder 17 and rotation pre- air cylinder 18.
Wherein, as an implementation, the top of the outer housing 2 is provided with external electrical interface, the jig peace
Electrical fast joint is provided on dress bracket 10, one end of the external electrical interface is connect with external loudspeaker acoustics tester, separately
One end is connect with one end of the electrical fast joint, the other end of the electrical fast joint and the loudspeaker connector cylinder 15,
Loudspeaker electrification connector 16, horizontal extension cylinder 17 and rotation pre- air cylinder 18 connect.
In addition, the present invention is additionally provided with for detecting whether the front door 11 closes sensing in place in the accommodating cavity
Device, the sensor are connect with the electric appliance fast joint.
The workflow of the sound proof box of loudspeaker acoustical testing of the present invention is elaborated below.
Step 1: equipment initialization is completed；
Step 2: loudspeaker to be tested are placed on the jig 5 by operator, it is solid by the rotation pre- air cylinder 18
It is fixed, then pressed from both sides by the quick change elbow and the jig 5 is placed in the jig mounting bracket 10；
Step 3: pressing ACK button, the front door 11 is closed in the movement of sliding block ecto-entad described in the motor driven；
Step 4: the sensor detects that the front door 11 is closed passes through the loudspeaker connector cylinder 15 certainly afterwards in place
It is dynamic to connect the loudspeaker connector and loudspeaker electrification connector 16, make its energization；
Step 5: the external loudspeaker acoustics tester issues test instruction；
Step 6: the sound horn；
Step 7: the microphone 6 acquires the acoustic information of the loudspeaker；
Step 8: the external loudspeaker acoustics tester analyze to the acoustic information and output waveform figure；
Step 9: the external loudspeaker acoustics tester judges loudspeaker specification and bright light prompt based on the analysis results；
Step 10: sliding block described in the motor driven moves from inside to outside, opens the front door 11 after the completion of test；
Step 11: removing the loudspeaker by operator.
In conclusion the sound proof box of loudspeaker acoustical testing of the present invention is through the above technical solutions, include rectangular parallelepiped structure
Enclosed housing, the cabinet includes the shell being made of outer housing and the inner housing being connected with the outer housing, described
Acoustical cotton is filled between outer housing and inner housing, the inner housing is arranged in the accommodating cavity around accommodating cavity is formed
There is the microphone of the jig for placing loudspeaker to be tested, the information of acoustic wave for acquiring the loudspeaker, reduces external environment
Interference of the noise to test effect to improve testing reliability and testing efficiency, and then promotes production capacity, and reduction is produced into
This.
The above description is only a preferred embodiment of the present invention, is not intended to limit the scope of the invention, all utilizations
Equivalent structure made by description of the invention and accompanying drawing content or process transformation, are applied directly or indirectly in other relevant skills
Art field, is included within the scope of the present invention.
Claims (10)
1. a kind of sound proof box of loudspeaker acoustical testing, which is characterized in that the enclosed housing including rectangular parallelepiped structure, the cabinet
Including the shell being made of outer housing and the inner housing being connected with the outer housing, filled out between the outer housing and inner housing
Filled with acoustical cotton, the inner housing is provided in the accommodating cavity for placing loudspeaker to be tested around accommodating cavity is formed
Jig, information of acoustic wave for acquiring the loudspeaker microphone.
2. the sound proof box of loudspeaker acoustical testing according to claim 1, which is characterized in that the inner top of the inner housing is pacified
Equipped with stretching motion mechanism, be equipped in the accommodating cavity be connected with the stretching motion mechanism for installing described control
The jig mounting bracket of tool, the sound proof box of the loudspeaker acoustical testing further include before being connected with the jig mounting bracket
Door, when stretching motion mechanism ecto-entad or when moving from inside to outside, the stretching motion mechanism drives the jig peace
The corresponding ecto-entad of dress bracket moves from inside to outside, when the movement of stretching motion mechanism ecto-entad from first position by
Opening when extroversion inwardly moves to the second position, on outer housing described in the preceding door termination.
3. the sound proof box of loudspeaker acoustical testing according to claim 2, which is characterized in that the stretching motion mechanism includes
It is installed on the sliding rail of the inner top of the inner housing, sliding block corresponding with the sliding rail, for driving the sliding block along the cunning
The motor of rail movement, the jig mounting bracket are slideably positioned on the sliding rail by the sliding block.
4. the sound proof box of loudspeaker acoustical testing according to claim 3, which is characterized in that the jig includes pedestal, peace
Loaded on loudspeaker connector cylinder, loudspeaker electrification connector, horizontal extension cylinder and the rotation pre- air cylinder on the pedestal.
5. the sound proof box of loudspeaker acoustical testing according to claim 4, which is characterized in that pacify in the jig mounting bracket
Equipped with the quick change elbow folder for clamping and fastening the jig.
6. the sound proof box of loudspeaker acoustical testing according to claim 5, which is characterized in that the top of the outer housing is arranged
There is external electrical interface, is provided with electrical fast joint in the jig mounting bracket, one end of the external electrical interface and outer
The connection of portion's loudspeaker acoustics tester, the other end are connect with one end of the electrical fast joint, the other end of the electrical fast joint
It is connect with the loudspeaker connector cylinder, loudspeaker electrification connector, horizontal extension cylinder and rotation pre- air cylinder.
7. according to claim 1 to the sound proof box of loudspeaker acoustical testing described in 6 any one, which is characterized in that the inner casing
It is pasted with wedge-shaped acoustical cotton in vivo, the depth of the wedge shape acoustical cotton is 150mm.
8. according to claim 1 to the sound proof box of loudspeaker acoustical testing described in 6 any one, which is characterized in that the shell
By cylindrical rod connection between body and the inner housing, the diameter of the cylinder rod is 40mm.
9. according to claim 1 to the sound proof box of loudspeaker acoustical testing described in 6 any one, which is characterized in that the shell
Outside using stainless steel carry out bound edge reinforcing, the stainless steel with a thickness of 1mm.
10. according to claim 1 to the sound proof box of loudspeaker acoustical testing described in 6 any one, which is characterized in that the inner casing
Body, outer housing are made of three folder planks.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811625826.1A CN109474880A (en) | 2018-12-28 | 2018-12-28 | The sound proof box of loudspeaker acoustical testing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811625826.1A CN109474880A (en) | 2018-12-28 | 2018-12-28 | The sound proof box of loudspeaker acoustical testing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109474880A true CN109474880A (en) | 2019-03-15 |
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ID=65678259
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811625826.1A Pending CN109474880A (en) | 2018-12-28 | 2018-12-28 | The sound proof box of loudspeaker acoustical testing |
Country Status (1)
| Country | Link |
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| CN (1) | CN109474880A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110099349A (en) * | 2019-04-01 | 2019-08-06 | 广州市建桥音响配件有限公司 | A kind of multifunctional testing platform of loudspeaker |
| WO2022143041A1 (en) * | 2020-12-30 | 2022-07-07 | 歌尔股份有限公司 | Loudspeaker module and electronic product |
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| CN204559885U (en) * | 2015-04-13 | 2015-08-12 | 瑞声声学科技(常州)有限公司 | For the sound proof box of audio detection |
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Patent Citations (5)
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| CN203423802U (en) * | 2013-07-03 | 2014-02-05 | 格云特自动化科技（深圳）有限公司 | Microphone testing device |
| CN204392572U (en) * | 2014-12-15 | 2015-06-10 | 深圳市佳晨科技有限公司 | A kind of sound proof box |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110099349A (en) * | 2019-04-01 | 2019-08-06 | 广州市建桥音响配件有限公司 | A kind of multifunctional testing platform of loudspeaker |
| CN110099349B (en) * | 2019-04-01 | 2021-11-09 | 广州市建桥音响配件有限公司 | Multifunctional testing platform for loudspeaker |
| WO2022143041A1 (en) * | 2020-12-30 | 2022-07-07 | 歌尔股份有限公司 | Loudspeaker module and electronic product |
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Effective date of registration: 20200714 Address after: 518000 1st-3rd floor, building a, Tangtou community, Shiyan street, Bao'an District, Shenzhen City, Guangdong Province Applicant after: SHENZHEN IN-CUBE AUTOMATION Co.,Ltd. Address before: 518000 2-3 floor, A building, Hongfa science and Technology Industrial Park, Baoan District, Shiyan community, Shiyan street, Baoan District, Shenzhen. Applicant before: SHENZHEN IN-CUBE AUTOMATION Co.,Ltd. Applicant before: Qiu Peng |
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Address after: 518000 1st-3rd floor, building a, Tangtou community, Shiyan street, Bao'an District, Shenzhen City, Guangdong Province Applicant after: Shenzhen zhicube automation equipment Co., Ltd Address before: 518000 1st-3rd floor, building a, Tangtou community, Shiyan street, Bao'an District, Shenzhen City, Guangdong Province Applicant before: SHENZHEN IN-CUBE AUTOMATION Co.,Ltd. |