CN207835809U - A kind of microphone test device of flexible PCB - Google Patents
A kind of microphone test device of flexible PCB Download PDFInfo
- Publication number
- CN207835809U CN207835809U CN201820101506.5U CN201820101506U CN207835809U CN 207835809 U CN207835809 U CN 207835809U CN 201820101506 U CN201820101506 U CN 201820101506U CN 207835809 U CN207835809 U CN 207835809U
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- China
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- pcb
- adapter board
- flexible pcb
- board connector
- connector
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Abstract
The utility model is related to a kind of microphone test devices of flexible PCB, it may include DC power supply, oscillograph, signal generator, loudspeaker, FPC connector and PCB adapter board connector, the FPC connector is docked with the PCB adapter board connector, so that the pin on the flexible PCB is connected to the pin one-to-one correspondence on the PCB adapter board connector, the DC power supply and the oscillograph are respectively by being respectively wired in the respective pin on the PCB adapter board connector, the signal generator is electrically connected with the loudspeaker, the loudspeaker are positioned to face the microphone to be tested on the flexible PCB.
Description
Technical field
The utility model is related to flexible PCB fields, and dress is tested more particularly to a kind of microphone of flexible PCB
It sets.
Background technology
In recent years, with the development of science and technology, the volume of the electronic products such as mobile phone, laptop is constantly reducing,
And people are also higher and higher to the performance requirement of these portable electronic products, and this requires matched electronic components
Volume also must be with reduction.In this case, one of the part as above-mentioned electronic product, microphone products field also push away
Gone out many new products, but no matter which kind of microphone all be unable to do without terminal client in use can be by microphone and above-mentioned electricity
Sub- product carries out assembly electrical connection.And for flexible PCB in surface mount (Surface Mounted Technology, letter
Claim SMT) after carry out acoustical behavior test, pick out functional abnormal article, be ensure product quality important link.
The simple of its acoustical behavior is not often detected quickly for the microphone mounted in flexible circuit plate surface to set
It is standby；The equipment for being conventionally used to detection microphone property often needs mating corresponding software operation to carry out, process it is relatively complicated and
Cost is higher.
Invention content
The utility model is intended to provide a kind of microphone test device of flexible PCB, to solve current flexible PCB
Microphone detection there is a problem of that of high cost and process is cumbersome.For this purpose, the specific technical solution that the utility model uses is as follows：
A kind of microphone test device of flexible PCB, it may include DC power supply, oscillograph, signal generator, loudspeaker,
FPC connector and PCB adapter board connector, the FPC connector are docked with the PCB adapter board connector so that described soft
Property circuit board on pin be connected to the pin one-to-one correspondence on the PCB adapter board connector, the DC power supply and described
Oscillograph is respectively by being respectively wired in the respective pin on the PCB adapter board connector, the signal generator
It is electrically connected with the loudspeaker, the loudspeaker are positioned to face the microphone to be tested on the flexible PCB.
Further, the microphone test device of flexible PCB may also include the mounting plate made of insulating materials, institute
State the PCB adapter board connector mounting portion and flexible PCB mounting portion that recess is provided on mounting plate.
Further, the PCB adapter board is fixedly mounted on the PCB adapter board connector mounting portion by screw
In.
Further, the concrete mode that the FPC connector is docked with the PCB adapter board connector is that the FPC connects
Connect device downward with the PCB adapter board connector make-up.
Further, at least there is the Mike for corresponding respectively to the flexible PCB on the PCB adapter board connector
The power supply of wind and the pin of output.
Further, described electric wire one end is respectively welded to the respective pin on the PCB adapter board connector, the other end
It is connect respectively with the connecting terminal of the DC power supply and the oscillograph.
The utility model uses above-mentioned technical proposal, has an advantageous effect in that：The utility model can be to flexible circuit
The microphone of plate carries out the detection of simple and fast, and testing cost is low, efficient.
Description of the drawings
Fig. 1 is the schematic diagram according to the microphone detection device of the flexible PCB of the utility model embodiment；
Fig. 2 is the signal according to the mounting plate of the microphone detection device of the flexible PCB of the utility model embodiment
Figure.
Specific implementation mode
To further illustrate that each embodiment, the utility model are provided with attached drawing.These attached drawings are in the utility model discloses
A part for appearance mainly to illustrate embodiment, and can coordinate the associated description of specification to explain that the running of embodiment is former
Reason.Cooperation refers to these contents, and those of ordinary skill in the art will be understood that other possible embodiments and this practicality are new
The advantages of type.Component in figure is not necessarily to scale, and similar component symbol is conventionally used to indicate similar component.
The utility model is further illustrated in conjunction with the drawings and specific embodiments.Referring to Fig.1, a kind of flexible PCB
Microphone test device may include DC power supply 1, oscillograph 2, signal generator 3, loudspeaker 4, FPC connector 5 and PCB switching
Connector for substrate 6.FPC connector 5 docks (as direction of the arrows shown in fig) with PCB adapter board connector 6 so that on flexible PCB 7
Pin (total indicated with reference numeral 71) and the pin on PCB adapter board connector 6 (total is indicated with reference numeral 61)
Correspond connection.Preferably, FPC connector 5 downward with 6 make-up of PCB adapter board connector.For example, having on FPC connector 5
There are downward opening terminal groove, PCB adapter board connector 6 that there is stitch raised upward.Wherein, on PCB adapter board connector 6
At least there is pin MIC_BIAS, MIC_P and MIC_ of the power supply and output of the microphone 72 for corresponding respectively to flexible PCB 7
N.DC power supply 1 and oscillograph 2 respectively by be respectively wired to PCB adapter board connector 6 above-mentioned pin MIC_BIAS,
On MIC_P and MIC_N.Specifically, electric wire one end is soldered to respective pin MIC_BIAS, MIC_P of PCB adapter board connector 6
And MIC_N, the other end are connect with the connecting terminal of DC power supply 1 and oscillograph 2 respectively.Signal generator 3 is electrically connected with loudspeaker 4
It connects, for making loudspeaker 4 make a sound.Loudspeaker 4 are positioned to face 72 (such as Fig. 1 of microphone to be tested on flexible PCB 7
Arrow shown in) so that its sound sent out can be received by microphone 72.
As shown in Fig. 2, the microphone test device of flexible PCB may also include mounting plate 8 made of insulating materials.
The PCB adapter board connector mounting portion 81 and flexible PCB mounting portion 82 of recess are provided on mounting plate 8.PCB adapter board connects
The shape for connecing device mounting portion 81 and flexible PCB mounting portion 82 is designed to and PCB adapter board connector 6 and flexible PCB 7
Shape is almost the same.PCB adapter board connector 6 can be fixedly mounted on by screw in PCB adapter board connector mounting portion 81.
Flexible PCB 7 can be directly placed in flexible PCB mounting portion 82, and be protected by corresponding limiting device (not shown)
It holds motionless.
Now briefly explain the operation principle of the utility model.After DC power supply 1 is opened, MIC_BIAS obtains electric, Mike
Wind 72 is started to work, while MIC_P exports audio corresponding signal with the ends MIC_N and is sent on oscillograph 3；Signal generator 3
After being connected with loudspeaker 4, opening signal generator 3 can hear loudspeaker 4 by Regulate signal generator output frequency response magnitude
It makes a sound, oscillograph 3 will appear oscillogram at this time；Then there is just profound waveform to reach in the amplitude and wide cut for adjusting waveform
Figure, oscillograph 3 will appear the corresponding response frequency size of oscillogram at this time；The size of the frequency shown on observation oscilloscope 3 is
As the no frequency size exported with signal generator 3, so that it may which whether the performance to judge microphone 72 is normal.
Although specifically showing and describing the utility model in conjunction with preferred embodiment, those skilled in the art answers
This is understood, in the spirit and scope for not departing from the utility model defined by the appended claims, in form and details
On the utility model can be made a variety of changes, be the scope of protection of the utility model.
Claims (6)
1. a kind of microphone test device of flexible PCB, which is characterized in that occur including DC power supply, oscillograph, signal
Device, loudspeaker, FPC connector and PCB adapter board connector, the FPC connector dock with the PCB adapter board connector, make
The pin obtained on the flexible PCB is connected to the pin one-to-one correspondence on the PCB adapter board connector, the direct current
Source and the oscillograph are respectively by being respectively wired in the respective pin on the PCB adapter board connector, the letter
Number generator is electrically connected with the loudspeaker, and the loudspeaker are positioned to face the Mike to be tested on the flexible PCB
Wind.
2. the microphone test device of flexible PCB as described in claim 1, which is characterized in that further include by insulating materials
Manufactured mounting plate is provided with the PCB adapter board connector mounting portion and flexible PCB mounting portion of recess on the mounting plate.
3. the microphone test device of flexible PCB as claimed in claim 2, which is characterized in that the PCB adapter board connects
Device is connect to be fixedly mounted in the PCB adapter board connector mounting portion by screw.
4. the microphone test device of flexible PCB as described in claim 1, which is characterized in that the FPC connector with
The concrete mode of PCB adapter board connector docking is, the FPC connector downward with the PCB adapter board connector pair
Button.
5. the microphone test device of flexible PCB as described in claim 1, which is characterized in that the PCB adapter board connects
Connecing at least has the pin of the power supply and output that correspond respectively to the microphone on the flexible PCB on device.
6. the microphone test device of flexible PCB as described in claim 1, which is characterized in that electric wire one end difference
The respective pin being soldered on the PCB adapter board connector, the other end respectively with the DC power supply and the oscillograph
Connecting terminal connects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820101506.5U CN207835809U (en) | 2018-01-22 | 2018-01-22 | A kind of microphone test device of flexible PCB |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820101506.5U CN207835809U (en) | 2018-01-22 | 2018-01-22 | A kind of microphone test device of flexible PCB |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207835809U true CN207835809U (en) | 2018-09-07 |
Family
ID=63393909
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820101506.5U Active CN207835809U (en) | 2018-01-22 | 2018-01-22 | A kind of microphone test device of flexible PCB |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207835809U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112399320A (en) * | 2019-08-16 | 2021-02-23 | 神讯电脑(昆山)有限公司 | Electret microphone detection circuit |
-
2018
- 2018-01-22 CN CN201820101506.5U patent/CN207835809U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112399320A (en) * | 2019-08-16 | 2021-02-23 | 神讯电脑(昆山)有限公司 | Electret microphone detection circuit |
| CN112399320B (en) * | 2019-08-16 | 2022-04-19 | 神讯电脑(昆山)有限公司 | Electret microphone detection circuit |
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