CN209627704U - A kind of Microspeaker test fixture - Google Patents
A kind of Microspeaker test fixture Download PDFInfo
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- CN209627704U CN209627704U CN201920298570.1U CN201920298570U CN209627704U CN 209627704 U CN209627704 U CN 209627704U CN 201920298570 U CN201920298570 U CN 201920298570U CN 209627704 U CN209627704 U CN 209627704U
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Abstract
The utility model provides a kind of Microspeaker test fixture, including pedestal, connect the pedestal in pedestal with pedestal sealing, tested speaker is placed when for using and the loudspeaker positioning insert in pedestal that connects with pedestal sealing, the back cavity jig of tested speaker sealing back cavity is formed when being socketed with pedestal for using, probe protection cover set on back cavity jig upper end, for compressing the thimble of tested speaker when using on the back cavity jig, it is fixed on pedestal for compressing the quick-speed jigs of back cavity jig when using through the probe protection cover, and the electrical measurement component that the performance of tested speaker is tested when for using；Electrical measurement component includes probe, power amplifier, microphone and electroacoustic performance tester.Microspeaker test work efficiency and test accuracy can be improved when the utility model is used.
Description
Technical field
The utility model relates to loudspeaker test devices, and in particular to a kind of Microspeaker test fixture.
Background technique
As now current mainstream smart phone and plate constantly update, while requirement day of the market for sound quality
Benefit increases severely.Mobile phone, pen electricity required using Microspeaker it is higher and higher, it is audio property other than it need to meet basic pure tone audition
It can test and also become more and more important.Accurate test data in order to obtain, other than stablizing accurately test macro, testing standard cavity
Jig is also particularly important.Test fixture species structure is various at present, and has test inconvenience, tested using Manual press, tests
It is influenced vulnerable to personnel's pressing force size；Phenomena such as big by artificial affecting is tested, brings puzzlement to test data accuracy.Cause
This, further research and development technology better effect uses the more convenient tooling for Microspeaker test, it appears very must
It wants.
Utility model content
The purpose of this utility model is: to solve problems of the prior art, it is improved miniature to provide a kind of structure
Loudspeaker test fixture.
The technical solution of the utility model is: the Microspeaker test fixture of the utility model is structurally characterized in that: packet
Include pedestal, connect the pedestal in pedestal with said base sealing, placed when for using tested speaker and with above-mentioned bottom
Seat seals the loudspeaker positioning insert in pedestal that connects, after forming tested speaker sealing when being socketed with pedestal for using
The back cavity jig of chamber, the probe protection cover set on above-mentioned back cavity jig upper end, for being pressed when using on above-mentioned back cavity jig
The thimble of tight tested speaker is fixed on pedestal for compressing the quick of back cavity jig through above-mentioned probe protection cover when using
Fixture, and the electrical measurement component that for using when tests the performance of tested speaker；
Above-mentioned electrical measurement component includes on back cavity jig for transmitting the 2 of test electric signal to tested speaker when using
Root probe receives the microphone of tested speaker shoo when for using, the electric signal of test is generated when for using
And the electricity that the voice signal of the tested speaker sent according to microphone should mutually analyze and determine the performance of tested speaker
Acoustic performance tester, and the power amplifier of the electric signal progress power amplification for being issued to electroacoustic performance tester；2
The input terminal of root probe is electrically connected with the signal output end of power amplifier, the signal input part and electroacoustic performance of power amplifier
The signal output end of tester is electrically connected, and the signal input part of the signal output end and electroacoustic performance tester of microphone is electrically connected
It connects, when test, the output end of 2 probes is electrically connected with tested speaker.
Further embodiment is: the intermediate position of said base is equipped with the mounting hole that the upward and downward with step penetrates through, peace
The step filled in hole is equipped with pedestal sealing foam；Pedestal is the component that outline shape is matched with the mounting hole of pedestal, pedestal
Intermediate position be equipped with the installation butt hole that the upward and downward with step penetrates through, the upper periphery of pedestal is opposite to be equipped with 2 positioning
Column；Pedestal is sealingly mounted in pedestal by pedestal sealing foam；Insert sealing bubble is equipped below loudspeaker positioning insert
Cotton, loudspeaker positioning insert are set in the installation butt hole of pedestal by the insert sealing foam being arranged.
Further embodiment is: above-mentioned back cavity jig is the integral piece of isolation material, and back cavity jig includes integrally connected
Ontology and in the middle part of the ontology periphery connection otic placode；Ontology is the inner circumferential ruler of the installation butt hole of peripheral dimension and above-mentioned pedestal
The lower end centre position of the very little column member matched, ontology is equipped with upwardly recessed squared counter bore, the periphery ruler of squared counter bore
The very little peripheral dimension slightly larger than above-mentioned loudspeaker positioning insert is located at fixed around squared counter bore be arranged on the lower end surface of ontology
There is back cavity sealing foam；Connection otic placode is equipped with 2 positioning butt holes matched with the positioning column of above-mentioned pedestal, back cavity jig
Pass through 2 positioning butt hole grafting in the connection otic placode of 2 positioning columns of pedestal and back cavity jig when docking with pedestal；It is above-mentioned
Probe protection cover is the hollow member of lower ending opening, and probe protection covers at the top of the ontology of back cavity jig, probe protection cover
Downside be equipped with cable hole.
Further embodiment is: above-mentioned thimble is round bar part, and the top of thimble is fixed at the ontology of above-mentioned back cavity jig
Interior, the lower part of thimble is extended downwardly from the squared counter bore of the ontology of back cavity jig.
Further embodiment is: above-mentioned 2 probes are fixed on the ontology of back cavity jig, and the upper end of 2 probes is slightly stretched
Upper end for the ontology of back cavity jig and it is located in probe protection cover, the lower parts of 2 probes is from the side of the ontology of back cavity jig
It is extended downwardly in shape counterbore.
Further embodiment is: above-mentioned quick-speed jigs are 201B quick-speed jigs, and above-mentioned quick-speed jigs are equipped with fixture installation
Seat, quick-speed jigs are fixedly mounted in above-mentioned fixture mounting base, and fixture mounting base is fixedly installed on the base.
Further embodiment is: above-mentioned electroacoustic performance tester is Soundcheck electruacousticfidelity instrument.
The utility model has the effect of positive: (1) the Microspeaker test fixture of the utility model passes through entirety
The design of structure, so that the back cavity jig Yu ante-chamber jig of tested speaker position butt hole by two in test operation
2 positioning columns match so that the two cooperation quickly and position it is accurate, so as to improve replacement tested speaker speed, mention
Height test work efficiency.(2) the Microspeaker test fixture of the utility model pushes down back cavity jig by using quick-speed jigs,
So that it is reliably formed closed, convenient and reliable operation with pedestal, can effectively avoid in the prior art because artificial pressing force difference is drawn
The test error risen.(3) the Microspeaker test fixture of the utility model is using it by overall construction design
When the cavity of good airproof performance can be provided for loudspeaker, while front and back chamber will not collaborate, so as to which the standard of test is effectively ensured
Exactness.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model, and the mounting means of tested speaker is also shown in figure；
Fig. 2 is the structural schematic diagram after back cavity jig is compacted in Fig. 1, and microphone in Fig. 1, power amplification is omitted in figure
Device and electroacoustic performance tester；
Fig. 3 is to remove the configuration schematic diagram after power amplifier and electroacoustic performance tester in Fig. 1.
Appended drawing reference in above-mentioned attached drawing is as follows:
Pedestal 1, mounting hole 11, pedestal sealing foam 12, pedestal 2, positioning column 21, limited block 22 are installed butt hole 23, are raised
Sound device positioning insert 3, insert sealing foam 31, back cavity jig 4, ontology 41, connection otic placode 42 position butt hole 42-1, back cavity
Sealing foam 43, probe protection cover 5, cable hole 51, thimble 6, quick-speed jigs 7, fixture mounting base 71, electrical measurement component 8, probe
81, microphone 82, electroacoustic performance tester 83, power amplifier 84；Tested speaker 100.
Specific embodiment
Utility model will be further described in detail below with reference to the attached drawings and specific embodiments.
(embodiment 1)
See that Fig. 1 to Fig. 3, the Microspeaker test fixture of the present embodiment are mainly fixed by pedestal 1, pedestal 2, loudspeaker
Position insert 3, back cavity jig 4, probe protection cover 5, thimble 6, quick-speed jigs 7 and electrical measurement component 8 form.
The intermediate position of pedestal 1 is equipped with the mounting hole 11 that the upward and downward with step penetrates through, on the step in mounting hole 11
Equipped with pedestal sealing foam 12.Pedestal 2 is the component that outline shape is matched with the mounting hole 11 of pedestal 1, the middle part of pedestal 2
Position is equipped with the installation butt hole 23 that the upward and downward with step penetrates through, and the upper periphery of pedestal 2 is oppositely arranged 2 positioning columns respectively
21 and 2 limited blocks 22.Pedestal 2 is sealingly mounted in pedestal 1 by pedestal sealing foam 12.Under loudspeaker positioning insert 3
Side is equipped with insert sealing foam 31, and loudspeaker positioning insert 3 is set to the installation of pedestal 2 by the insert sealing foam 31 being arranged
In butt hole 23.
Back cavity jig 4 is the integral piece of isolation material, and back cavity jig 4 mainly by ontology 41 and is set to 41 middle part periphery of ontology
The one composition of connection otic placode 42, ontology 41 is what peripheral dimension was matched with the inner circumferential size of the installation butt hole 23 of pedestal 2
Column member, position is equipped with upwardly recessed squared counter bore (not shown) among the lower end of ontology 41, squared counter bore it is outer
All sizes are slightly larger than the peripheral dimension of loudspeaker positioning insert 3, are located on the lower end surface of ontology 41 fixed around squared counter bore
It is equipped with back cavity sealing foam 43；Connection otic placode 42 is equipped with 2 positioning butt holes matched with the positioning column 21 of pedestal 2
42-1 passes through 2 in the connection otic placode 42 of 2 positioning columns 21 of pedestal 2 and back cavity jig 4 when back cavity jig 4 is docked with pedestal 2
A positioning butt hole 42-1 grafting can conveniently realize the accurate positionin of back cavity jig 4 Yu pedestal 2.
Probe protection cover 5 is the hollow member of lower ending opening, and probe protection cover 5 is set to the upper of the ontology 41 of back cavity jig 4
The downside in portion, probe protection cover 5 is equipped with cable hole 51.
Thimble 6 is round bar part, and the top of thimble 6 is fixed in the ontology 41 of back cavity jig 4, and the lower part of thimble 6 is from rear
It is extended downwardly in the squared counter bore of the ontology 41 of chamber jig 4.Thimble 6 for pushing down tested speaker when using down from above
100, preventing 100 one end of tested speaker from tilting leads to poor sealing and gas leakage.
Quick-speed jigs 7 are equipped with fixture mounting base 71, and quick-speed jigs 7 are fixedly mounted in fixture mounting base 71, fixture peace
Dress seat 71 is fixed on pedestal 1.Quick-speed jigs 7 preferably use commercially available 201B quick-speed jigs.Quick-speed jigs 7 are for using
When through probe protection cover 5 compress back cavity jig 4 so that using when tested speaker 100 upper end of the rear end also in attached drawing formed
One sealed rear chamber.
Electrical measurement component 8 includes probe 81, microphone 82, electroacoustic performance tester 83 and power amplifier 84；
Probe 81 is equipped with 2, and 2 probes 81 are fixed on the ontology 41 of back cavity jig 4, and the upper end of 2 probes 81 is omited
It stretches out in the upper end of the ontology 41 of back cavity jig 4 and is located in probe protection cover 5, to facilitate signal wire cabling, 2 probes 81
Lower part is extended downwardly from the squared counter bore of the ontology 41 of back cavity jig 4.The lower end of 2 probes 81 and tested speaker when use
100 the two poles of the earth electrical connection, for transmitting the electric signal so that 100 sounding of tested speaker to tested speaker 100.
The signal input part of microphone 82 namely pick up end are set on outer where the mounting hole 11 at the intermediate position of pedestal 1
Portion, namely when test on the position of the horn mouth institute direction of tested speaker 100, microphone 82 receives tested loudspeaking when test
Voice signal that device 100 is issued simultaneously is sent to electroacoustic performance tester 83.
Electroacoustic performance tester 83 is used to generate the sinusoidal audio electric signal of test, receives the quilt that microphone 82 is sent
The voice signal for surveying the sending of loudspeaker 100 mutually should be analyzed and be obtained a result to the performance of tested speaker 100.Electroacoustic
Energy tester 83 based on the received analyze the performance of tested speaker 100 and show that accordingly result is mature shows by voice signal
There is technology, is not detailed.In the present embodiment, electroacoustic performance tester 83 preferably uses Soundcheck electruacousticfidelity instrument.
Power amplifier 84 is for putting the test that electroacoustic performance tester 83 issues with sinusoidal audio electric signal
Greatly, amplified signal is then transferred to tested speaker 100 through probe 81.
Input terminal, that is, upper end of 2 probes 81 is electrically connected with the signal output end of power amplifier 84, power amplifier 84
Signal input part be electrically connected with the signal output end of electroacoustic performance tester 83, the signal output end of microphone 82 and electroacoustic
Can tester 83 signal input part electrical connection, when test, 100 electricity of output end, that is, lower end and tested speaker of 2 probes 81
Connection.
Tested speaker 100 is placed in loudspeaker positioning when in use by the Microspeaker test fixture of the present embodiment
In insert 3, it is set in the installation butt hole 23 of pedestal 2 and makes after 3 lower end of loudspeaker positioning insert setting insert sealing foam 31
Obtain the loudspeaker mouth down of tested speaker 100,2 positioning butt hole 42-1 back cavity jig 4 being connected through on otic placode 42
With the socket of 2 positioning columns 21 of pedestal 2 can fast and easy be accurately realized back cavity jig 4 and docked with the sealing of pedestal 2, then with quick
Fixture 7 compresses back cavity jig 4 through probe protection cover 5, so that also the upper end in attached drawing forms one for the rear end of tested speaker 100
Sealed rear chamber, and 2 probes 81 are docked and are electrically connected with the two poles of the earth of tested speaker 100 at this time；Start electroacoustic at this time
The sinusoidal audio electric signal that energy tester 83 exports test is transferred to after the amplification of power amplifier 84 by probe 81 tested
Loudspeaker 100 makes its sounding, and microphone 82 receives the voice signal that tested speaker 100 is issued and is sent to electroacoustic performance survey
Instrument 83 is tried, electroacoustic performance tester 83 receives the voice signal that microphone 82 is sent and divides the performance of tested speaker 100
Analysis judgement.As it can be seen that the Microspeaker test fixture of the present embodiment is by integrally-built design so that test operation facilitate it is fast
Speed improves work efficiency and can effectively ensure that the accuracy of test.
Above embodiments are the explanations to specific embodiment of the present utility model, rather than limitations of the present invention,
Person skilled in the relevant technique can also make various changes in the case where not departing from the spirit and scope of the utility model
It changes and changes and obtain corresponding equivalent technical solution, therefore should to be included into this practical new for all equivalent technical solutions
The scope of patent protection of type.
Claims (7)
1. a kind of Microspeaker test fixture, it is characterised in that: including pedestal, connect in pedestal with pedestal sealing
Pedestal, when for using place tested speaker and with the pedestal sealing connect in pedestal loudspeaker positioning inlay
Block forms the back cavity jig of tested speaker sealing back cavity, is set to the back cavity jig upper end when being socketed with pedestal for using
Probe protection cover, on the back cavity jig for use when compress tested speaker thimble, be fixed on pedestal
The quick-speed jigs of back cavity jig are compressed when for using through the probe protection cover, and to tested speaker when for using
The electrical measurement component that performance is tested；
The electrical measurement component includes on back cavity jig for transmitting 2 spies of test electric signal when using to tested speaker
Needle receives the microphone of tested speaker shoo when for using, the electric signal and root of test are generated when for using
The electroacoustic that the voice signal of the tested speaker sent according to microphone should mutually analyze and determine the performance of tested speaker
Energy tester, and the power amplifier of the electric signal progress power amplification for being issued to electroacoustic performance tester；2 spies
The input terminal of needle is electrically connected with the signal output end of power amplifier, and the signal input part and electroacoustic performance of power amplifier are tested
The signal output end of instrument is electrically connected, and the signal output end of microphone is electrically connected with the signal input part of electroacoustic performance tester, is surveyed
When examination, the output end of 2 probes is electrically connected with tested speaker.
2. Microspeaker test fixture according to claim 1, it is characterised in that: the intermediate position of the pedestal is equipped with
The mounting hole of upward and downward perforation with step, the step in mounting hole are equipped with pedestal sealing foam；Pedestal is outline shape
The component matched with the mounting hole of pedestal, the intermediate position of pedestal are equipped with the installation docking that the upward and downward with step penetrates through
Hole, the upper periphery of pedestal is opposite to be equipped with 2 positioning columns；Pedestal is sealingly mounted in pedestal by pedestal sealing foam；Loudspeaking
Insert sealing foam is equipped with below device positioning insert, loudspeaker positioning insert is set to bottom by the insert sealing foam being arranged
In the installation butt hole of seat.
3. Microspeaker test fixture according to claim 2, it is characterised in that: the back cavity jig is isolation material
Integral piece, back cavity jig include the ontology of integrally connected and in the middle part of the ontology periphery connection otic placode；Ontology is periphery ruler
The column member that the very little inner circumferential size with the installation butt hole of the pedestal matches, the lower end centre position of ontology are equipped with upward
Recessed squared counter bore, the peripheral dimension of squared counter bore are slightly larger than the peripheral dimension of the loudspeaker positioning insert, under ontology
It is located at fixation around squared counter bore on end face and is equipped with back cavity sealing foam；Connection otic placode is equipped with 2 and the pedestal
The positioning butt hole that positioning column matches passes through 2 positioning columns of pedestal and back cavity jig when back cavity jig is docked with pedestal
2 positioning butt hole grafting in connection otic placode；The probe protection cover is the hollow member of lower ending opening, and probe protection is provide with
In the top of the ontology of back cavity jig, the downside of probe protection cover is equipped with cable hole.
4. Microspeaker test fixture according to claim 3, it is characterised in that: the thimble is round bar part, thimble
Top be fixed in the ontology of the back cavity jig, the lower part of thimble from the squared counter bore of the ontology of back cavity jig downwards
It stretches out.
5. Microspeaker test fixture according to claim 3, it is characterised in that: after 2 probes are fixed at
On the ontology of chamber jig, the upper end of 2 probes slightly stretches out in the upper end of the ontology of back cavity jig and is located in probe protection cover, 2
The lower part of root probe is extended downwardly from the squared counter bore of the ontology of back cavity jig.
6. any Microspeaker test fixture according to claim 1~5, it is characterised in that: the quick-speed jigs are
201B quick-speed jigs, the quick-speed jigs are equipped with fixture mounting base, and quick-speed jigs are fixedly mounted in the fixture mounting base,
Fixture mounting base is fixedly installed on the base.
7. Microspeaker test fixture according to claim 6, it is characterised in that: the electroacoustic performance tester is
Soundcheck electruacousticfidelity instrument.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920298570.1U CN209627704U (en) | 2019-03-08 | 2019-03-08 | A kind of Microspeaker test fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920298570.1U CN209627704U (en) | 2019-03-08 | 2019-03-08 | A kind of Microspeaker test fixture |
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| Publication Number | Publication Date |
|---|---|
| CN209627704U true CN209627704U (en) | 2019-11-12 |
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ID=68456285
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920298570.1U Active CN209627704U (en) | 2019-03-08 | 2019-03-08 | A kind of Microspeaker test fixture |
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| Country | Link |
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| CN (1) | CN209627704U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114226259A (en) * | 2021-12-16 | 2022-03-25 | 广东拓普测控技术有限公司 | Automatic testing machine for micro loudspeaker |
-
2019
- 2019-03-08 CN CN201920298570.1U patent/CN209627704U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114226259A (en) * | 2021-12-16 | 2022-03-25 | 广东拓普测控技术有限公司 | Automatic testing machine for micro loudspeaker |
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