CN111741421A

CN111741421A - Microphone automatic test system

Info

Publication number: CN111741421A
Application number: CN202010425949.1A
Authority: CN
Inventors: 叶禹泽
Original assignee: Luxvisions Innovation Ltd
Current assignee: Shangrao Lijing Innovation Technology Co.,Ltd.
Priority date: 2020-05-19
Filing date: 2020-05-19
Publication date: 2020-10-02
Anticipated expiration: 2040-05-19
Also published as: TW202044855A; TWI754938B; CN111741421B

Abstract

The invention discloses an automatic microphone testing system which comprises a sound testing device, a testing circuit board, a bearing device, a first moving device and a second moving device. The bearing device is arranged corresponding to the sound testing device and the testing circuit board. The bearing device is used for bearing the microphone module, wherein one end of the microphone module is provided with a connector. The first mobile device is connected with the sound testing device. The second mobile device is connected with the test circuit board. Before the microphone module is tested, the first mobile device displaces the sound testing device so that the sound testing device and the bearing device are in contact with each other and surround the microphone module, and the second mobile device displaces the test circuit board so that the test circuit board is inserted into the connector.

Description

Microphone automatic test system

Technical Field

The invention relates to the field of test systems, in particular to an automatic test system for a microphone.

Background

A microphone (microphone) is a transducer that converts sound into an electronic signal. It is common in life for electronic devices such as microphones, recorders, mobile phones, cameras, etc. Microphone modules are provided in some small mobile products (e.g., tablets, cell phones, cameras).

After the microphone module is manufactured, the microphone module is tested in a factory production line. Generally, the test items of the microphone module are frequency response, signal transmission, sensitivity, and the like. Since acoustic waves need to be isolated during the test, the relevant test needs to be performed in an airtight chamber.

In the microphone module testing apparatus commonly used today, the whole microphone module testing apparatus is covered by a sealed frame to form an airtight chamber, and the microphone module testing apparatus needs to be replaced manually.

Disclosure of Invention

In other words, the microphone testing system described above requires a one-to-one manner of replacing the microphone modules, i.e., one piece of microphone testing equipment requires one person to perform the replacing operation. Therefore, a large load is imposed on personnel costs, and the production efficiency is not optimal.

In view of the above, the present invention provides an automatic testing system for microphone, which can form an airtight space without a sealed frame during testing, can insert a connector of a microphone module during testing, and requires other testing items for a carrying device carrying the microphone module, thereby eliminating the manpower requirement and improving the production efficiency.

In one embodiment, an automated testing system for a microphone includes a sound testing device, a testing circuit board, a carrying device, a first mobile device and a second mobile device. The bearing device is arranged corresponding to the sound testing device and the testing circuit board. The bearing device is used for bearing the microphone module, wherein one end of the microphone module is provided with a connector. The first mobile device is connected with the sound testing device. The second mobile device is connected with the test circuit board. Before the microphone module is tested, the first mobile device displaces the sound testing device so that the sound testing device and the bearing device are in contact with each other and surround the microphone module, and the second mobile device displaces the test circuit board so that the test circuit board is inserted into the connector.

In summary, in the microphone automatic testing system according to some embodiments of the present invention, before the microphone module is tested, the testing circuit board is inserted into the connector of the microphone module through the moving device, so as to ensure that the signal transmission of the microphone module is normal and further ensure that the connector of the microphone module also has a normal function. In other embodiments, the carrying device for microphone automated testing can carry a plurality of microphone modules, which is beneficial to improving the production efficiency. In still other embodiments, the automated microphone testing system eliminates the need for a sealed housing and manual replacement by forming an airtight space between the sound testing device and the carrier.

Drawings

FIG. 1 is a perspective view of an automated microphone testing system according to an embodiment of the present invention in an initial state;

fig. 2 is a perspective view of an embodiment of a microphone automatic test system according to an embodiment of the invention before a microphone module is tested;

fig. 3 is a perspective view of another embodiment of the automated microphone testing system according to an embodiment of the invention before the microphone module is tested;

FIG. 4 is a perspective view of a microphone automated testing system according to an embodiment of the present invention in a testing state;

fig. 5 is a partial perspective cross-sectional view of the microphone module of fig. 4 in a test state;

FIG. 6 is a test state partial cross-sectional view of the microphone automated testing system of section line 6-6 of FIG. 4;

FIG. 7 is a schematic diagram of the second moving device and the third moving device before actuation in another embodiment of FIG. 6;

FIG. 8 is a schematic diagram of the second mobile device and the third mobile device in FIG. 6 after actuation;

FIG. 9 is a partial perspective cross-sectional view of the second moving device and the third moving device of the alternative embodiment of FIG. 5 before actuation; and

fig. 10 is an exploded view of a microphone module of an embodiment of the invention.

Wherein, the reference numbers:

1: microphone automatic test system

20: sound testing device

21, sound-shielding cover

211, top part

212 side panel

213 bottom

214 opening of the container

215 inner space

22: horn

25 first moving means

251 first cylinder

252 first movable member

27 first seal

30 bearing device

31: base

315 location holes

317 liner

32 bearing body

321 groove

325 connecting socket

35 microphone module

351 connector

352 positioning sponge

353 magnetic tape

354 circuit board

355 inductor

356 lens assembly

357 protective film

37 second seal

40 second moving device

401 second cylinder

402 second moving part

43 fixing part

431 extension pipe

45, test circuit board

47 third seal

49 external connector

50: third moving device

501 third cylinder

502 third movable part

51 positioning element

511 is perforated

515 first plate

517 second board

52 positioning pin

X is the first direction

Y is the second direction

Z the third direction

Detailed Description

The invention is described in detail below with reference to the drawings and specific examples, but the invention is not limited thereto.

It should be noted that the terms "first direction X", "second direction Y" and "third direction Z" are only used for convenience of description and simplicity of describing the present invention, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation and length, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. The "first direction X", "second direction Y", and "third direction Z" are three different directions, and the first direction X, the second direction Y, and the third direction Z are perpendicular to each other.

Referring to fig. 1 to 5, in some embodiments, the automated microphone testing system 1 includes a sound testing device 20, a testing circuit board 45, a carrying device 30, a first mobile device 25, and a second mobile device 40. The carrying device 30 is used for carrying the microphone module 35, wherein one end of the microphone module 35 is provided with a connector 351 (as shown in fig. 5 and 10). In an example, before the microphone module 35 is tested, the first moving device 25 moves the sound testing device 20 to make the sound testing device 20 and the carrying device 30 contact each other and surround the microphone module 35, and the second moving device 40 moves the test circuit board 45 to make the test circuit board 45 inserted into the connector 351.

In some embodiments, the carrier 30 is disposed corresponding to the sound testing device 20 and the test circuit board 45. For example, the sound testing device 20 is disposed above the carrier 30 along the first direction X, and the testing circuit board 45 is disposed outside the carrier 30 along the second direction Y. In some embodiments, the first mobile device 25 is connected to the sound testing device 20. For example, the first moving device 25 is disposed above the sound testing device 20 along the first direction X. In some embodiments, the second mobile device 40 is connected to a test circuit board 45. For example, the test circuit board 45 is fixed on the second moving device 40 and located between the second moving device 40 and the carrier 30 in the second direction Y.

In some embodiments, the sound testing device 20 includes a sound-shielding cover 21 and a speaker 22. The sound-shielding cover 21 includes a top portion 211, a side plate 212, and a bottom portion 213, and the bottom portion 213 has an opening 214. In some embodiments, the first movement device 25 is attached to the upper surface of the top 211. In one example, the side plate 212 connects the top 211 and the bottom 213 to form an inner space 215, and the opening 214 of the bottom 213 communicates with the inner space 215. The horn 22 is disposed and fixed in the internal space 215 of the sound-shielding cover 21 and positioned above the opening 214, as shown in fig. 6.

Please refer to fig. 5 and 6. In some embodiments, the carrying device 30 includes a base 31, a carrying body 32 and a connection socket 325. The bearing body 32 is located on the base 31, and the upper surface of the bearing body 32 has one or more grooves 321. In some embodiments, the shape of the groove 321 may be a square shape, the shape of the microphone module 35, or a combination thereof. In other embodiments, a plurality of grooves 321 arranged at intervals in the third direction Z and having the contour of the microphone module 35 may communicate with the middle sections of each other through the square grooves 321. In other embodiments, the square groove 321 is used to accommodate the middle section of the microphone module 35, and two sidewalls of the square groove 321 in the second direction Y extend outward to respectively accommodate two ends of the microphone module 35. The recess 321 is used for accommodating the microphone module 35 (as shown in fig. 5), and one end of the microphone module 35 having the connector 351 is disposed corresponding to the connection socket 325 (as shown in fig. 6). In other words, the groove 321 may be used to position the microphone module 35 such that the end of the microphone module 35 is disposed corresponding to the connection jack 325. The connection socket 325 penetrates through a sidewall of the carrier body 32, and the connection socket 325 is aligned with the test circuit board 45 outside the carrier 30. For example, the connection socket 325 is disposed through one or two sidewalls of the carrying body 32 in the second direction Y. In an example, before the microphone module 35 is tested, the second moving device 40 moves the test circuit board 45 in the second direction Y so that the test circuit board 45 passes through the connection socket 325 and is inserted into the connector 351.

Referring to fig. 5, in some embodiments, the carrier 30 can carry one or more microphone modules 35. In an exemplary embodiment, the surface of the carrier body 32 has a plurality of grooves 321, and the plurality of microphone modules 35 are accommodated in the grooves 321. Therefore, on the automatic production line, when the bearing body 32 is used for testing the microphone modules 35, a plurality of microphone modules 35 can be tested in one testing process, so that the time required for manually replacing the microphone modules 35 can be reduced, and the production efficiency can be improved.

Referring to fig. 10, in some embodiments, the microphone module 35 includes a connector 351, a positioning sponge 352, a tape 353 and a circuit board 354. The connector 351 is located at one end of the circuit board 354 and the positioning sponge 352 is located at the other end of the circuit board 354 opposite the connector 351. The circuit board 354 is located on the tape 353. In some embodiments, for example, an electronic device such as a mobile phone or a camera, the microphone module 35 may be integrated with the camera module, in which case the microphone module 35 further includes a sensor 355, a lens assembly 356 and a protection film 357, the sensor 355 is disposed at the middle section of the circuit board 354, the lens assembly 356 is disposed above the sensor 355, and the protection film 357 is disposed above the lens assembly 356 (as shown in fig. 10).

In some embodiments, the automated microphone testing system 1 further comprises a circuit testing device, which includes a testing circuit board 45 and an external connector 49. And, the second moving device 40 is connected to the circuit testing device. For example, the second moving device 40 fixes the test circuit board 45 in the second direction Y and connects the external connector 49 in the first direction X, as shown in fig. 5 and 6. In some embodiments, the mating external connector 49 may be connected to a particular test device via a corresponding connection element. In other words, the test equipment may transmit or receive test signals to the microphone module 35 through the external connector 49 and the test circuit board 45. For example, the external connector 49 may be, but is not limited to, a USB 3.0 receptacle.

In some embodiments, the first moving device 25 includes a first cylinder 251 and a first moving member 252. The first cylinder 251 is used for displacing the first movable element 252, and the first movable element 252 is connected to the sound testing device 20. For example, the first movable member 252 is connected at one end to the first cylinder 251, and at the other end to the top 211 of the sound-shielding cover 21. In one example, the first moving device 25 retracts or stretches the first movable member 252 by the actuation of the first cylinder 251, so as to raise or lower the sound testing device 20, as shown in fig. 1 and 2.

In some embodiments, second moving device 40 includes a second cylinder 401 and a second moving member 402. The second cylinder 401 is used for displacing the second movable member 402, and the second movable member 402 is connected to the test circuit board 45. In some embodiments, the second moving device 40 includes a plurality of second cylinders 401 and a plurality of second moving members 402 corresponding to such second cylinders 401. Also, the second moving device 40 can operate the second cylinder 401 and the second movable member 402 respectively. In an example, the second moving device 40 contracts or stretches the second movable member 402 by the actuation of the second cylinder 401, so as to move the test circuit board 45 connected to the second moving device 40 away from or toward the carrying device 30, as shown in fig. 7 and 8. Thereby, the second moving device 40 can pull or insert the test circuit board 45 from or into the connector 351. In some embodiments, two second moving devices 40 are respectively disposed at two sides of the carrying device 30 in the second direction Y, and the second cylinders 401 are simultaneously actuated to move the two sides of the test circuit board 45 away from or toward the carrying device 30. When the second moving device 40 moves the test circuit board 45 toward the carrying device 30, one side of the test circuit board 45 is inserted into the connector 351, and the other side of the test circuit board 45 is stopped by the positioning sponge 352. In some embodiments, the side corresponding to the positioning sponge 352 may not have the second moving device 40 and the test circuit board 45, and only the side corresponding to the connector 351 may have the second moving device 40 and the test circuit board 45.

Referring to fig. 7 and 8, in some embodiments, the automated microphone testing system 1 further includes a third mobile device 50 and a positioning pin 52. And, the third moving device 50 is connected with the positioning pin 52. For example, the third moving device 50 is located outside the carrying device 30 in the second direction Y and below the second moving device 40 along the first direction X. The positioning pin 52 is located between the third moving device 50 and the base 31. In some embodiments, the base 31 has a positioning hole 315 on a sidewall adjacent to the third mobile device 50 for aligning the positioning pin 52. In some embodiments, a bushing 317 is disposed within the positioning hole 315.

In some embodiments, the third moving device 50 includes a third cylinder 501 and a third moveable member 502. The third cylinder 501 is used for displacing the third movable member 502, and the third movable member 502 is connected to the positioning pin 52. In an exemplary embodiment, the third moving device 50 is actuated by the third cylinder 501 to contract or stretch the third movable member 502, so as to push the positioning pin 52 to be inserted into the positioning hole 315 to fix the carrying device 30 (as shown in fig. 8), or pull the positioning pin 52 to be removed from the positioning hole 315 to release the fixing of the carrying device 30 (as shown in fig. 7). In some embodiments, two third moving devices 50 are respectively disposed at two sides of the supporting device 30 in the second direction Y, and the third cylinders 501 are actuated simultaneously to insert the positioning pins 52 at two sides into the positioning holes 315 or remove the positioning pins from the positioning holes 315.

In some embodiments, "cylinder actuation" of the first cylinder 251, the second cylinder 401, and the third cylinder 501 is actuated to displace moving members (e.g., the first moving member 252, the second moving member 402, and the third moving member 502) by displacing a piston located within a cylinder body up and down to compress gas. In some embodiments, first moveable member 252, second moveable member 402, and third moveable member 502 may be, but are not limited to, piston rods.

In one example, before the microphone module 35 is tested, the third moving device 50 displaces the positioning pin 52 such that the positioning pin 52 is inserted into the positioning hole 315 (as shown in fig. 8). In other words, the third moving device 50 is displaced toward the carrier device 30 along the second direction Y, and the positioning pin 52 is inserted into the positioning hole 315 of the base 31. Here, the third moving device 50 has fixed the carrier device 30. In another implementation of the present example, a bushing 317 is disposed within the positioning hole 315. Therefore, after the positioning pin 52 is inserted into the positioning hole 315, the bushing 317 is used to fix the positioning pin 52.

In some embodiments, the third moving device 50 includes a positioning member 51. The positioning member 51 is provided with a positioning pin 52, that is, the positioning pin 52 is disposed on one side of the positioning member 51 adjacent to the base 31 in the second direction Y, as shown in fig. 7 and 8. Referring to fig. 6 and 9, in some embodiments, the positioning member 51 has a through hole 511, and the through hole 511 is aligned with the connection socket 325. In other words, the positioning member 51 has a through hole 511 at a side adjacent to the bearing body 32 and the connection socket 325. Also, the through hole 511 may be used to accommodate the test circuit board 45, and the test circuit board 45 is aligned with the through hole 511 and used to pass through the through hole 511.

Please refer to fig. 7 and 8. In some embodiments, the positioning member 51 includes a first plate 515 and a second plate 517 perpendicularly connecting the first plate 515. The through holes 511 are provided in the first plate 515, and the positioning pins 52 are provided in the second plate 517. In an exemplary embodiment, before the microphone module 35 is tested, the third moving device 50 displaces the positioning element 51 to make the first plate 515 contact the carrying body 32, and make the second plate 517 contact the base 31 and the positioning pin 52 is inserted into the positioning hole 315 (as shown in fig. 8).

Referring to fig. 9, in some embodiments, the second moving device 40 includes a fixing member 43. The fixing member 43 is adjacent to the positioning member 51, and the fixing member 43 fixes the test circuit board 45. In some embodiments, the mount 43 includes an extension tube 431. The test circuit board 45 passes through the extension tube 431 and out the end of the extension tube 431, and the extension tube 431 is aligned with the through hole 511 and is used to enter the through hole 511.

In some embodiments, the microphone automated testing system 1 includes a first seal 27, a second seal 37, and a third seal 47. For example, the first sealing member 27 is disposed on the bottom 213 of the sound testing device 20, as shown in fig. 6. Alternatively, the first seal 27 is disposed on the lower surface of the bottom 213 and surrounds the opening 214 of the bottom 213. The second sealing member 37 is disposed on the positioning member 51 adjacent to the outer side of the carrying device 30 and surrounds the through hole 511, as shown in fig. 5, 6 and 9. The third sealing member 47 is disposed between the positioning member 51 and the fixing member 43. Alternatively, the third seal 47 is disposed between the retainer 51 and the extension pipe 431 of the retainer 43, as shown in fig. 9. In some embodiments, the first seal 27, the second seal 37, and the third seal 47 may be, but are not limited to, rubber-like seals (O-rings).

Here, the sound testing device 20 and the carrying device 30 are tightly contacted by the first sealing member 27, the carrying device 30 and the positioning member 51 are tightly contacted by the second sealing member 37, and the positioning member 51 and the fixing member 43 are tightly contacted by the third sealing member 47, so that an airtight space can be formed between the sound testing device 20, the carrying device 30, the positioning member 51 and the fixing member 43.

In some examples, the flow of the microphone automated testing system 1 is as follows. Step (1): first, before the microphone module 35 is tested, the carrying device 30 is not placed under the sound testing device 20, and the first mobile device 25, the second mobile device 40 and the third mobile device 50 are all in the initial state. In other words, the first movable member 252 of the first mobile device 25, the second movable member 402 of the second mobile device 40, and the third movable member 502 of the third mobile device 50 are all in a collapsed state. The upper sound testing device 20 and the second moving device 40 and the third moving device 50 on the side (e.g., left, right, or both sides) are configured to reserve a space for placing the carrying device 30.

Subsequently, step (2): the carrying device 30 is placed in, and two ends of the microphone module 35 carried by the carrying device 30 respectively correspond to the second moving devices 40 on two sides. In other words, step (2) is the initial state of the microphone automated testing system 1 (as shown in fig. 1) before the microphone module 35 is tested. In the initial state, the sound testing device 20 is located above the supporting device 30 and spaced apart from the supporting device 30, and is in the raised state. For example, the first moving device 25 retracts the first moving member 252 via the first cylinder 251 to lift the sound testing device 20, or the first moving member 252 of the first moving device 25 retracts to raise the sound testing device 20. In addition, neither the second moving device 40 nor the third moving device 50 is actuated, in other words, the second moving device 40 retracts the second movable member 402 by the actuation of the second cylinder 401, so that the test circuit board 45 connected to the second moving device 40 is away from the carrier device 30, or the second movable member 402 of the second moving device 40 is in a retracted state, so that the test circuit board 45 is away from the carrier device 30. The third moving device 50 is actuated by the third cylinder 501 to contract the third movable member 502, so that the first plate 515 of the positioning member 51 connected to the third movable member 502 is away from the connection socket 325 and the second plate 517 thereof is away from the positioning hole 315, and the positioning pin 52 on the positioning member is away from the positioning hole 315. In some embodiments, the second mobile device 40 and the third mobile device 50 on both sides are far away from each other, such that there is a maximum distance between the second mobile device 40 and the third mobile device 50.

And (3): the second moving device 40 and the third moving device 50 start to move the test circuit board 45 and the positioning pins 52 (as shown in fig. 7 and 8). First, the third moving device 50 is activated by the third cylinder 501, so that the third movable member 502 pushes the positioning member 51 to displace toward the bearing device 30, and the positioning pin 52 on the second plate 517 of the positioning member 51 is inserted into the positioning hole 315 of the base 31. And, the through hole 511 of the first plate 515 of the positioning member 51 is also displaced toward the bearing body 32 until the second sealing member 37 of the positioning member 51 contacts the bearing body 32. The second moving device 40 is actuated by the second cylinder 401 to make the second moving part 402 push the fixing part 43 to move toward the bearing body 32, and make the extension pipe 431 of the fixing part 43 enter the through hole 511 of the positioning part 51, until the test circuit board 45 sequentially passes through the through hole 511, the connection socket 325 and the connector 351 of the microphone module 35 for performing an electrical test.

And (4): the first moving device 25 actuates the first movable member 252 through the first cylinder 251 to displace the sound testing device 20 and make it contact with the bearing device 30 with the first sealing member 27. In other words, when the sound testing device 20 is in the lowered state, the bottom 213 of the sound testing device 20 contacts the carrier 30 with the first seal 27 and surrounds the microphone module 35.

And the step (3) and the step (4) can be carried out sequentially or simultaneously. For example, in an implementation of the automatic microphone testing system 1 before the microphone module 35 is tested (as shown in fig. 2), the step (2) is followed by the step (4). In this embodiment, the sound testing device 20 is in a lowered state, and the test circuit board 45 is not inserted into the connector 351. In another embodiment of the automatic microphone testing system 1 before the microphone module 35 is tested (as shown in fig. 3), the step (2) is followed by the step (3). In this other embodiment, the sound testing device 20 is in the raised state, the third moving device 50 positions and fixes the carrier 30, and the testing circuit board 45 is inserted into the connector 351.

Finally, step (5): after the airtight space is formed among the sound testing device 20, the carrying device 30, the positioning member 51 and the fixing member 43, the sound test can be performed. In step (5), the sound testing device 20 is in a descending state and is in close contact with the bearing device 30 by the first sealing member 27. The second moving device 40 is actuated to insert the test circuit board 45 into the connector 351, and the extension pipe 431 of the fixing member 43 enters the through hole 511 of the positioning member 51. At this time, the third packing 47 is in close contact with the retainer 51 and the extension pipe 431. The third moving device 50 is actuated to position and fix the bearing device 30 and make the second sealing member 37 on the positioning member 51 closely contact with the surface of the bearing body 32 outside the connecting socket 325. Here, the first seal 27, the second seal 37, and the third seal 47 cooperate to form an airtight space, and the microphone module 35 is already placed in the airtight space, and a sound test can be performed. At this time, the automatic microphone testing system 1 is in a testing state (as shown in fig. 4).

In this regard, in some embodiments, for a factory production line of microphones, the production Cycle (CT) of the microphones can be reduced by the automated microphone testing system 1 from 18 seconds per piece (s/pcs) requiring manual reloading to 4 s/pcs. In other words, the automatic microphone testing system 1 can effectively improve the production efficiency and reduce the personnel cost.

In summary, according to the automated testing system 1 of the present invention, the testing circuit board 45 disposed in the second mobile apparatus 40 is inserted into the connector 351 of the microphone module 35 in the carrying apparatus 30, so that all testing items including sound and electrical properties can be completely tested. Compared with the prior art that only the contact of the microphone module 35 can be tested during the microphone test, the test circuit board 45 can be actually inserted into and electrically connected with the connector 351 of the microphone module 35 to test whether the overall function of the connector 351 is normal or not while testing the sound. Moreover, the automatic testing system 1 for microphone can avoid the manpower operation to reduce the personnel cost and improve the production efficiency.

Although the present invention has been described with reference to the foregoing embodiments, it should be understood that various changes and modifications can be made therein by those skilled in the art without departing from the spirit and scope of the invention.

Claims

1. An automated microphone testing system, comprising:

a sound testing device and a testing circuit board;

the bearing device is arranged corresponding to the sound testing device and the testing circuit board and is used for bearing a microphone module, wherein one end of the microphone module is provided with a connector;

the first mobile device is connected with the sound testing device; and

the second mobile device is connected with the test circuit board;

before the microphone module is tested, the first mobile device displaces the sound testing device so that the sound testing device and the bearing device are in contact with each other and surround the microphone module, and the second mobile device displaces the test circuit board so that the test circuit board is inserted into the connector.

2. The automated microphone testing system of claim 1, wherein the carrier comprises:

a base;

the bearing body is positioned on the base, and the surface of the bearing body is provided with a groove which is used for accommodating the microphone module; and

and the connecting socket is aligned with the test circuit board and penetrates through the side wall of the bearing body, wherein before the microphone module is tested, the second mobile device displaces the test circuit board so that the test circuit board passes through the connecting socket and is inserted into the connector.

3. The system of claim 2, further comprising a positioning pin and a third mobile device, the third mobile device being connected to the positioning pin, wherein the base has a positioning hole on a sidewall adjacent to the third mobile device for aligning with the positioning pin, wherein the third mobile device displaces the positioning pin to insert the positioning pin into the positioning hole before the microphone module is tested.

4. The system of claim 3, wherein a bushing is disposed in the positioning hole, wherein the bushing is configured to fix the positioning pin after the positioning pin is inserted into the positioning hole.

5. The automated microphone testing system of claim 3, wherein the third moving device comprises a positioning member, the positioning member is fixed to the positioning pin, the positioning member has a through hole, the through hole is aligned with the connection socket, and the testing circuit board is aligned with the through hole and is configured to pass through the through hole; and the second moving device comprises a fixing piece which is adjacent to the positioning piece and fixes the test circuit board.

6. The automated microphone testing system of claim 5, further comprising:

the first sealing element is arranged at the bottom of the sound testing device;

the second sealing element is arranged on the positioning element, is adjacent to the outer side of the bearing device and surrounds the through hole; and

the third sealing element is arranged between the positioning element and the fixing element;

when testing the microphone module, the sound testing device and the bearing device are in close contact with the first sealing piece, the bearing device and the positioning piece are in close contact with the second sealing piece, and the positioning piece and the fixing piece are in close contact with the third sealing piece, so that an airtight space is formed among the sound testing device, the bearing device, the positioning piece and the fixing piece.

7. The automated microphone testing system of claim 6, wherein the mounting member comprises an extension tube, the test circuit board passes through the extension tube and out of an end of the extension tube, the extension tube is aligned with the through hole and is configured to enter the through hole, wherein, when the microphone module is tested, the extension tube enters the through hole, the test circuit board passes through the through hole and the connection socket and is inserted into the connector, and the third sealing member is located between a wall of the through hole and a wall of the extension tube.

8. The automated microphone testing system of claim 6, wherein the sound testing device comprises:

the sound shielding cover is provided with a top part, a side plate and a bottom part, wherein the bottom part is provided with an opening, the side plate is connected with the side edges of the top part and the bottom part to form an inner space, the opening is communicated with the inner space, and the first moving device is arranged on the upper surface of the top part; and

the loudspeaker is arranged and fixed in the inner space of the sound shielding cover and is positioned above the opening.

9. The automated microphone testing system of claim 8, wherein the first seal is disposed on a lower surface of the base and surrounds the opening.

10. The system of claim 5, wherein the positioning member comprises a first plate and a second plate vertically connected to the first plate, the through hole is disposed on the first plate, and the positioning pin is disposed on the second plate, wherein before the microphone module is tested, the third moving device displaces the positioning member to make the first plate contact the carrier body, the second plate contact the base, and the positioning pin is inserted into the positioning hole.

11. The system of claim 3, wherein the first moving device comprises a first moving member and a first cylinder, the first cylinder is used for moving the first moving member, and the first moving member is connected to the sound testing device; the second moving device comprises a second moving part and a second cylinder, the second cylinder is used for displacing the second moving part, and the second moving part is connected with the test circuit board: and the third moving device comprises a third moving piece and a third cylinder, the third cylinder is used for displacing the third moving piece, and the third moving piece is connected with the positioning pin.