CN205793348U - A kind of electroacoustic device test fixture and a kind of electroacoustic device test system - Google Patents
A kind of electroacoustic device test fixture and a kind of electroacoustic device test system Download PDFInfo
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- CN205793348U CN205793348U CN201620571252.4U CN201620571252U CN205793348U CN 205793348 U CN205793348 U CN 205793348U CN 201620571252 U CN201620571252 U CN 201620571252U CN 205793348 U CN205793348 U CN 205793348U
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- electroacoustic device
- test fixture
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Abstract
The utility model discloses a kind of electroacoustic device test fixture and a kind of electroacoustic device test system.Being provided with the imitation-shaped groove placing electroacoustic device to be measured on this electroacoustic device test fixture, bottom imitation-shaped groove, the acoustic aperture that goes out of corresponding electroacoustic device is provided with transaudient passage, and transaudient feeder connection edge and electroacoustic device shell contact portion are provided with sealing gasket.By arranging sealing gasket in the transaudient passage of electroacoustic device test fixture and electroacoustic device shell contact portion, it is ensured that the sealing of electroacoustic device test fixture, so that test process has higher concordance and stability, and simple in construction, cost is relatively low；The electroacoustic device test fixture using the design constitutes test system, has better seal performance, there is not leakage sound problem, and testing result is more accurate.
Description
Technical field
This utility model relates to sound detection technical field, particularly relates to a kind of electroacoustic device test fixture and one electricity
Acoustic device test system.
Background technology
In development and the quality testing stage of electroacoustic device, need the acoustical behavior of electroacoustic device is tested,
Needing to use test fixture in the test process of electroacoustic device, the effect of test fixture is that electroacoustic device to be measured is placed into survey
On test instrument, it is achieved good transfer voice, it is ensured that at test process, there is higher concordance and stability.
Test fixture has closed and leakage type two big classes at present.For enclosed frock, it is common practice that at electricity
The local profiling completely that acoustic device contacts with frock is to reach airtight.So need to ensure that testing sample coincide very with frock
Good, the concordance of guarantee test and stability, high to the requirement degree of frock, cause the cost made high；It addition, some are surveyed
Trial work dress realizes excellent sealing by being molded silica gel in imitation-shaped groove, but silica gel price is higher, and injection silica gel needs relatively
High temperature, it is therefore necessary to use metal material to make test fixture, the problem equally existing high cost.
Utility model content
In view of prior art in order to realize electroacoustic device test fixture sealing effect, cause higher the asking of cost of manufacture
Topic, it is proposed that a kind of electroacoustic device test fixture of the present utility model and a kind of electroacoustic device test system, this electroacoustic device
Test fixture is by arranging sealing gasket in transaudient passage and electroacoustic device shell contact portion, it is ensured that electroacoustic device test fixture
Sealing so that test process has higher concordance and stability, and simple in construction, cost is relatively low.
To achieve these goals, this utility model is by the following technical solutions:
A kind of electroacoustic device test fixture, this test fixture is provided with the imitation-shaped groove placing electroacoustic device to be measured, described
Bottom imitation-shaped groove, the acoustic aperture that goes out of corresponding electroacoustic device is provided with transaudient passage, and described transaudient feeder connection edge fills with described electroacoustic
Put shell contact portion and be provided with sealing gasket.
Alternatively, described test fixture is metal material or non-metallic material.
Alternatively, described sealing gasket is foam material, is pasted onto the ingress edge of described transaudient passage.
Alternatively, described transaudient passage is the straight-tube shape structure that described electroacoustic device is just going out acoustic aperture, and cross section is circular.
Alternatively, the shell of described electroacoustic device to be measured is provided with voicing hole, the corresponding described voicing hole of described imitation-shaped groove
Be provided with voicing passage, when electroacoustic device to be measured is placed in imitation-shaped groove, described voicing hole by described voicing passage with extraneous
Conducting.
Alternatively, described test fixture is provided with compresses the fixing device of described electroacoustic device.
Alternatively, described electroacoustic device includes earphone or speaker.
A kind of electroacoustic device test system, including computer, sound card, out amplifier, test fixture, artificial ear and test
Amplifier；
Described computer electrically connects with sound card, and described sound card, out amplifier and electroacoustic device to be measured are sequentially connected electrically, institute
State sound card, test amplifier and artificial ear to be sequentially connected electrically；
Described test fixture is the test fixture described in any of the above-described item；Described electroacoustic device to be measured is placed in described test work
In the imitation-shaped groove of dress, the acoustic aperture that goes out of electroacoustic device is directed at transaudient passage, and described artificial ear is arranged on the exit of transaudient passage.
Alternatively, described artificial ear is arranged on the exit of transaudient passage by artificial ear adaptor.
In sum, the beneficial effects of the utility model are:
By arranging sealing gasket in the transaudient passage of electroacoustic device test fixture and electroacoustic device shell contact portion, it is ensured that
The sealing of electroacoustic device test fixture, so that test process has higher concordance and stability, and simple in construction,
Cost is relatively low；The electroacoustic device test fixture using the design constitutes test system, has better seal performance, there is not leakage
Sound problem, testing result is more accurate.
Accompanying drawing explanation
Fig. 1 is a kind of electroacoustic device structural representation to be measured；
The test fixture profile that Fig. 2 provides for one embodiment of this utility model；
The test fixture front view (as viewed from imitation-shaped groove side) that Fig. 3 provides for one embodiment of this utility model；
Fig. 4 places schematic diagram during electroacoustic device to be measured for the test fixture that one embodiment of this utility model provides；
The test system schematic that Fig. 5 provides for one embodiment of this utility model.
In figure: electroacoustic device the most to be measured；11. loudspeaker monomers；12. go out acoustic aperture；2. test fixture；21. imitation-shaped grooves；22.
Transaudient passage；23. sealing gaskets；3. artificial ear；4. test amplifier；5. out amplifier；6. sound card；7. computer.
Detailed description of the invention
For making the purpose of this utility model, technical scheme and advantage clearer, new to this practicality below in conjunction with accompanying drawing
Type embodiment is described in further detail.
Embodiment 1
Fig. 1 is a kind of electroacoustic device structural representation to be measured, and this electroacoustic device 1 is internally provided with the speaker for sounding
Monomer 11, its sound sent sends by going out acoustic aperture 12.
The test fixture profile that Fig. 2 provides for one embodiment of this utility model；Fig. 3 is this utility model one enforcement
The test fixture front view (as viewed from imitation-shaped groove side) that example provides；The test that Fig. 4 provides for one embodiment of this utility model
Frock places schematic diagram during electroacoustic device to be measured.
The utility model discloses a kind of electroacoustic device test fixture, as in Figure 2-4, this test fixture 2 is provided with
Placing the imitation-shaped groove 21 of electroacoustic device 1 to be measured, bottom imitation-shaped groove 21, the acoustic aperture 12 that goes out of corresponding electroacoustic device is provided with transaudient passage
22, transaudient passage 22 ingress edge and electroacoustic device shell contact portion are provided with sealing gasket 23.
By arranging sealing gasket in the transaudient passage of electroacoustic device test fixture and electroacoustic device shell contact portion, it is ensured that
The sealing of electroacoustic device test fixture, so that test process has higher concordance and stability, and simple in construction,
Cost is relatively low.
In the present embodiment, test fixture 2 is metal material or non-metallic material.Owing to the electroacoustic device of this structure is tested
Frock 2 arranges sealing gasket 23 to ensure sealing property in transaudient passage 22 ingress edge and electroacoustic device shell contact portion, keeps away
Exempt to be molded the operation of silica gel in imitation-shaped groove 21, there is not high-temperature process, metal material the most both can have been used to make, it is possible to
To use nonmetallic materials to make, easily process but the thermoplastic injection mo(u)lding of non-refractory for example with polyformaldehyde etc., from
And effectively reduce cost, and shorten fabrication cycle.
Sealing gasket 23 is foam material, is pasted onto the ingress edge of transaudient passage 22.Foam have volume thin, flexible,
Reliability high, has good plasticity, can be used for the purposes such as water proof is moistureproof, shockproof, sound insulation, insulation, utilize PSR,
The foam materials such as EVA, stick at the transaudient feeder connection edge of test fixture by glue or double faced adhesive tape, and processing is simple, has good
Good sound insulaton and damping effect.
As shown in Figure 2,3, transaudient passage 22 is the straight-tube shape structure that electroacoustic device is just going out acoustic aperture 12, and cross section is circular.
Embodiment 2
On the basis of this utility model embodiment 1, when being provided with voicing hole on the shell of electroacoustic device to be measured, profiling
Groove correspondence voicing hole is provided with voicing passage, when electroacoustic device to be measured is placed in imitation-shaped groove, voicing hole by voicing passage with
Extraneous conducting.
The structure design in voicing hole can be effectively improved low frequency or the high frequency tonequality of electroacoustic device, is especially common in earphone
On, and owing to Headphone structure is less, sound regulating hole is easily covered by imitation-shaped groove, examines during making test fixture simultaneously
Consider the voicing hole in electroacoustic device profile, voicing passage is set voicing hole is turned on, closer to electroacoustic device such as earphone with extraneous
Use practical situation, the acoustical behavior of electroacoustic device can be detected more accurately.
Embodiment 3
On the basis of the various embodiments described above, test fixture is provided with the fixing device compressing electroacoustic device.
Electroacoustic device to be measured can be pressed on test fixture to use the forms such as elbow folder, elastic clip, buckle by fixing device
In, it is achieved test process is preferably sealed, improves accuracy of detection.
In the various embodiments described above, electroacoustic device includes the electroacoustic device of earphone or speaker, especially compact structure, as with
The speaker etc. used in body earphone, or mobile phone.
The invention also discloses a kind of electroacoustic device using the test fixture shown in any of the above-described embodiment to test
System, as it is shown in figure 5, include computer 7, sound card 6, out amplifier 5, test fixture 2, artificial ear 3 and test amplifier 4；
Computer 7 electrically connects with sound card 6, and sound card 6, out amplifier 5 and electroacoustic device to be measured 1 are sequentially connected electrically, and sound card 6, test are put
Big device 4 and artificial ear 3 are sequentially connected electrically；Test fixture 2 is the test fixture 2 of any of the above-described embodiment；Electroacoustic device 1 to be measured
Being placed in the imitation-shaped groove 21 of test fixture 2, the acoustic aperture 12 that goes out of electroacoustic device is directed at transaudient passage 22, and artificial ear 3 is arranged on transaudient
The exit of passage 22.
Processing routine is carried in computer 7, such as soundcheck program, when running program, signal to sound card 6, make
Sound card 6 outputting standard 1mW tests signal, after out amplifier 5 is amplified, arrives electroacoustic device 1, makes electroacoustic device 1 sounding；
Artificial ear 3 receives the acoustical signal that electroacoustic device 1 sends, and passes the signal received back sound card 6 by test amplifier 4, then
Reach computer 7, after soundcheck routine processes, obtain the acoustical testing parameters such as the frequency response of electroacoustic device 1, distortion.
Artificial ear 3 is arranged on the exit of transaudient passage 22 by artificial ear 3 adaptor.Artificial ear due to different model
Size is different, in order to improve the versatility of this test system, artificial ear adaptor can be used to realize the emulation to different model
The adaptation of ear.
The utility model has the advantage of: connect with electroacoustic device shell by the transaudient passage at electroacoustic device test fixture
Contact portion sets up separately puts sealing gasket, it is ensured that the sealing of electroacoustic device test fixture, so that test process has higher consistent
Property and stability, and simple in construction, cost is relatively low.
The main body of test fixture can use metal material making that nonmetallic materials can also be used to make, processing method letter
Single, low cost, and fabrication cycle is short.
The electroacoustic device test fixture using the design constitutes test system, has better seal performance, there is not leakage
Sound problem, testing result is more accurate.
The foregoing is only preferred embodiment of the present utility model, be not intended to limit protection model of the present utility model
Enclose.All any modification, equivalent substitution and improvement etc. made within spirit of the present utility model and principle, are all contained in this reality
With in novel protection domain.
Claims (9)
1. an electroacoustic device test fixture, this test fixture is provided with the imitation-shaped groove placing electroacoustic device to be measured, described imitative
The acoustic aperture that goes out of shape trench bottom correspondence electroacoustic device is provided with transaudient passage, it is characterised in that described transaudient feeder connection edge with
Described electroacoustic device shell contact portion is provided with sealing gasket.
2. test fixture as claimed in claim 1, it is characterised in that described test fixture is metal material or non-metallic material
Matter.
3. test fixture as claimed in claim 1, it is characterised in that described sealing gasket is foam material, is pasted onto described biography
The ingress edge of sound passage.
4. test fixture as claimed in claim 1, it is characterised in that described transaudient passage is for just to speak to described electroacoustic device
The straight-tube shape structure in hole, cross section is circular.
5. test fixture as claimed in claim 1, it is characterised in that be provided with voicing on the shell of described electroacoustic device to be measured
Hole, the corresponding described voicing hole of described imitation-shaped groove is provided with voicing passage, when electroacoustic device to be measured is placed in imitation-shaped groove, described tune
Acoustic aperture is by described voicing passage and extraneous conducting.
6. test fixture as claimed in claim 1, it is characterised in that be provided with compression described electroacoustic dress on described test fixture
The fixing device put.
7. test fixture as claimed in claim 1, it is characterised in that described electroacoustic device includes earphone or speaker.
8. an electroacoustic device test system, puts including computer, sound card, out amplifier, test fixture, artificial ear and test
Big device；
Described computer electrically connects with sound card, and described sound card, out amplifier and electroacoustic device to be measured are sequentially connected electrically, described sound
Card, test amplifier and artificial ear are sequentially connected electrically；
It is characterized in that,
Described test fixture is the test fixture described in any one of claim 1-7；Described electroacoustic device to be measured is placed in described survey
In the imitation-shaped groove of trial work dress, the acoustic aperture that goes out of electroacoustic device is directed at transaudient passage, and described artificial ear is arranged on the outlet of transaudient passage
Place.
Test system the most as claimed in claim 8, it is characterised in that described artificial ear is arranged on biography by artificial ear adaptor
The exit of sound passage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620571252.4U CN205793348U (en) | 2016-06-13 | 2016-06-13 | A kind of electroacoustic device test fixture and a kind of electroacoustic device test system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620571252.4U CN205793348U (en) | 2016-06-13 | 2016-06-13 | A kind of electroacoustic device test fixture and a kind of electroacoustic device test system |
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| Publication Number | Publication Date |
|---|---|
| CN205793348U true CN205793348U (en) | 2016-12-07 |
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| CN201620571252.4U Active CN205793348U (en) | 2016-06-13 | 2016-06-13 | A kind of electroacoustic device test fixture and a kind of electroacoustic device test system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108362454A (en) * | 2018-01-10 | 2018-08-03 | 上海展扬通信技术有限公司 | Test method, device and the readable storage medium storing program for executing of mobile terminal electro-acoustic element |
| CN111800724A (en) * | 2019-12-31 | 2020-10-20 | 深圳市豪恩声学股份有限公司 | Wearing detection device and method for in-ear earphone |
-
2016
- 2016-06-13 CN CN201620571252.4U patent/CN205793348U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108362454A (en) * | 2018-01-10 | 2018-08-03 | 上海展扬通信技术有限公司 | Test method, device and the readable storage medium storing program for executing of mobile terminal electro-acoustic element |
| CN111800724A (en) * | 2019-12-31 | 2020-10-20 | 深圳市豪恩声学股份有限公司 | Wearing detection device and method for in-ear earphone |
| CN111800724B (en) * | 2019-12-31 | 2022-03-22 | 深圳市豪恩声学股份有限公司 | Wearing detection device and method for in-ear earphone |
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