A kind of acoustic characteristic test silencing case of terminal unit
This utility model is related to sound property technical field of measurement and test, the acoustic characteristic test of more particularly, to a kind of terminal unit
In the terminal unit production process such as existing mobile phone or panel computer, need the product producing after assembling is entered
The test of row sound property, including receiver, receiver, music loudspeaker, noise reduction, captures mike, 3.5jack earphone exports
Existing measuring method is that separately station measures respectively by each characteristic index above-mentioned, and overall measurement takes
Long with the cycle.And because each station is provided separately, the tool of measurement and station are many, lead to the relatively costly of measurement apparatus.
On the other hand, because Devices to test needs to move between each station, when measuring receiver and loudspeaker abnormal sound, hold
The noise effect being vulnerable to extraneous production line leads to False Rate high.
Therefore, prior art is also to be developed.
Utility model content
In view of in place of above-mentioned the deficiencies in the prior art, the purpose of this utility model is to provide a kind of audio frequency of terminal unit
It is intended to solve existing terminal unit sound property, characteristic test silencing case detects that station is many, tool is relatively costly, abnormal sound False Rate
In order to achieve the above object, this utility model takes technical scheme below:
A kind of acoustic characteristic test silencing case of terminal unit, wherein, comprising:
Form the acoustic characteristic mechanism for testing of an airtight sound deadening space；
It is arranged on the drive mechanism below described acoustic characteristic mechanism for testing；If described drive mechanism passes through dry seal insulating against sound
Bar seals, isolation be arranged on signal input in drive mechanism and and pneumatic drive unit sound；
Described acoustic characteristic mechanism for testing includes: for placing the equipment fixture of Devices to test；Detection Devices to test audio frequency
The artificial mouth unit of characteristic, artificial ear unit and microphone unit and pneumatic means；
Described artificial mouth unit, artificial ear unit and microphone unit are individually fixed in box house correspondence position,
Form corresponding equipment acoustic characteristic detection station；
Described pneumatic means is connected with described equipment fixture, drives described equipment fixture to enter the inspection of each equipment acoustic characteristic
Described terminal unit acoustic characteristic test silencing case, wherein, described artificial mouth unit, artificial ear unit and
Microphone unit is respectively arranged with apparatus for adjusting position and position scale.
Described apparatus for adjusting position adjusts artificial mouth unit, artificial ear unit and microphone unit in three dimensions
Position, and current location is shown by position scale.
The acoustic characteristic test silencing case of described terminal unit, wherein, is additionally provided with rs323 outside described drive mechanism
The acoustic characteristic test silencing case of described terminal unit, wherein, described drive mechanism bottom surface is provided with 4 rollings
Beneficial effect: a kind of acoustic characteristic test silencing case that this utility model provides, it is integrated with the casing of sealing
Multiple measurement functions, can complete the measurement of multiple acoustic characteristics in single cavity, effectively reduce tool quantity and
Cost.It is additionally, since and there is good soundproof effect thus ensure that the accuracy rate of acoustic characteristic measurement.
Fig. 1 is the schematic diagram of the acoustic characteristic test silencing case of this utility model specific embodiment.
Fig. 2 is the schematic diagram of the drive mechanism of this utility model specific embodiment.
Fig. 3 is the enlarged diagram of a part in Fig. 1.
This utility model provides a kind of acoustic characteristic test silencing case of terminal unit.For make the purpose of this utility model,
Technical scheme and effect are clearer, clear and definite, and the embodiment that develops simultaneously referring to the drawings further describes to this utility model.
It should be appreciated that specific embodiment described herein, only in order to explain this utility model, is not used to limit this utility model.
Fig. 1 is a kind of acoustic characteristic test silencing case of terminal unit of this utility model specific embodiment.Comprising: shape
Become the acoustic characteristic mechanism for testing 100 of an airtight sound deadening space and be arranged on described acoustic characteristic mechanism for testing 100 lower section
Drive mechanism 200.
As shown in figure 1, this silencing case is divided into upper and lower two independent casings, upper box is acoustic characteristic mechanism for testing 100,
For placing Devices to test and measuring.Lower box is drive mechanism 200.Electric process required for inside is placed with fills
Put, driving means etc..Certainly, described terminal unit acoustic characteristic test silencing case can also include feed mechanism 10 grade other
Suitable frame for movement, thus complete continuous, on-line measurement.
As shown in Fig. 2 if described drive mechanism 200 is sealed by dry seal sound insulation bar 210, isolation is arranged on drive mechanism
Interior signal input and and pneumatic drive unit sound.
Above-mentioned separately positioned mode, can be good at avoiding the noise of silencing case equipment of itself generation for acoustic characteristic
The impact of measurement result.
As shown in figure 3, described acoustic characteristic mechanism for testing 100 includes: for placing the equipment fixture 110 of Devices to test；
The artificial mouth unit 120 of detection Devices to test acoustic characteristic, artificial ear unit 130 and microphone unit 140 and pneumatic dress
Described artificial mouth unit 120, artificial ear unit 130 and microphone unit 140 are individually fixed in box house
Correspondence position, forms corresponding equipment acoustic characteristic and detects station.
Described pneumatic means 150 is connected with described equipment fixture 110, drives described equipment fixture to enter each equipment audio frequency
Characteristics Detection station.As shown in Fig. 2 described equipment fixture can be the terminal unit support plate being provided with clamping and fixing device.
It is preferred that described artificial mouth unit, artificial ear unit and microphone unit are respectively arranged with position adjustments dress
Put 111 and position scale 112.
By arrange described apparatus for adjusting position, can easily and efficiently adjust artificial mouth unit, artificial ear unit and
Position in three dimensions for the microphone unit, thus adapt to the audio detection of the terminal unit of different model.And by setting
Seated position scale, can more accurately position the position of each measuring unit, have preferable accuracy and repeatability.
Specifically, it is additionally provided with rs232 EBI outside described drive mechanism.By this rs232 interface, can be with life
Producing line is connected with each other thus realizing on-line automaticization measurement.It is, for example possible to use mechanical hand 5 quiet test boxs of collocation come
One automatic measurement station of composition.
More specifically, as shown in Fig. 2 described drive mechanism 200 bottom surface is provided with 4 rollers 220.By arranging roller just
Movement in this silencing case.It is of course also possible to according to actual demand, arrange more or less roller.
The acoustic characteristic test silencing case of above-mentioned terminal unit is integrated with receiver, receiver, music loudspeaker, and noise reduction is caught
Obtain mike, the measurement function of 3.5jack earphone output in measurement function in one, tool manufacturing cost relative moderate, simple
Single, and the impact to measurement result for the extraneous noise when measuring, can be shielded completely, accuracy rate is higher.
On the other hand, measurement sounding major-minor artificial mouth during measurement mobile phone type, artificial ear, the regulation side of mike are changed
Just quick, it is provided with scale and above-mentioned measuring apparatus can be allowed to be accurately positioned and there is good repeatability, concordance.Can also adopt
Rs232 Interface Controller, automatic measurement is realized in achievable producing line interconnection, improves measuring rate.
It is understood that for those of ordinary skills, can according to the technical solution of the utility model and
This utility model design in addition equivalent or change, and all these change or replace all should belong to appended by this utility model
Scope of the claims.