CN106686512B - Audio testing device for microphone of wearable electronic product - Google Patents
Audio testing device for microphone of wearable electronic product Download PDFInfo
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- CN106686512B CN106686512B CN201710039805.0A CN201710039805A CN106686512B CN 106686512 B CN106686512 B CN 106686512B CN 201710039805 A CN201710039805 A CN 201710039805A CN 106686512 B CN106686512 B CN 106686512B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R29/00—Monitoring arrangements; Testing arrangements
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2420/00—Details of connection covered by H04R, not provided for in its groups
- H04R2420/05—Detection of connection of loudspeakers or headphones to amplifiers
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- General Health & Medical Sciences (AREA)
- Otolaryngology (AREA)
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Testing Electric Properties And Detecting Electric Faults (AREA)
- Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
Abstract
The invention relates to a microphone audio calibration device of a wearable electronic product, in particular to an audio test device of a microphone of the wearable electronic product. The device comprises an audio shielding box, and a product positioning module, an audio testing communication module, a simulation nozzle and a product pressing module which are arranged in the audio shielding box, wherein the product positioning module is used for positioning the wearable electronic product; the product pressing module is used for locking the wearable electronic product positioned on the product positioning module; the simulation mouth is arranged on the base and used for providing a standard sound source for acoustic detection of the wearing type electronic product; the audio test communication module is used for testing the microphone and the audio of the wearable electronic product. The microphone audio test system can realize the automatic audio test of the microphone of wearable electronic products in a shielded field environment, the audio test communication module has strong adjustability, and the springs are added on two sides to ensure that the damage to the FPC contact is small under the condition of contact communication.
Description
Technical Field
The invention relates to a microphone and audio calibration device of a wearable electronic product, in particular to an audio test device of a microphone of a wearable electronic product.
Background
At present, wearable electronic products are widely pursued by the public, and various companies continuously push out novel products; however, when the conventional PCBA microphone is calibrated with the audio, there are disadvantages that the automatic test cannot be performed, and the audio test procedure is complicated (after the speaker is mounted, the test calibration is performed by using a standard microphone).
Disclosure of Invention
In view of the above problems, an object of the present invention is to provide an audio testing apparatus for a microphone of a wearable electronic product, so as to solve the problems that automatic testing cannot be performed and audio testing procedures are complicated when a conventional PCBA microphone is calibrated with audio.
In order to achieve the purpose, the invention adopts the following technical scheme:
an audio test device for a microphone of a wearable electronic product comprises an audio shielding box, and a product positioning module, a product pressing module, an audio test communication module and a simulation mouth which are arranged in the audio shielding box, wherein,
the audio shielding box is used for providing a microphone of a wearable electronic product and a shielding field environment for audio testing;
the product positioning module is used for positioning the wearable electronic product;
the product pressing module is used for locking the wearable electronic product positioned on the product positioning module;
the simulation nozzle is arranged on one side of the product positioning module and used for providing a standard sound source for acoustic detection of the wearable electronic product;
the audio test communication module is arranged on the other side of the product positioning module and used for carrying out audio test on the microphone of the wearable electronic product.
One side of the audio shielding box is provided with a shielding box door, the bottom of the audio shielding box is provided with a box door opening and closing driving mechanism connected with the shielding box door, and the box door opening and closing driving mechanism drives the shielding box door to be opened or closed.
The product positioning module, the product pressing module, the audio test communication module and the simulation nozzle are arranged on the inner side of the shielding box door through the supporting plate.
The simulation mouth is fixed on the supporting plate through the simulation mouth fixing seat and corresponds to the wearable electronic product positioned on the product positioning module, and the distance between the simulation mouth and the wearable electronic product is adjustable.
The box door opening and closing driving mechanism is a double-rod cylinder, and the shielding box door is connected with the driving end of the double-rod cylinder.
The audio test communication module comprises a fixed support, a linear driving mechanism and a power supply and signal transmission module, wherein the linear driving mechanism is arranged on the fixed support, the power supply and voltage signal transmission module is connected with the output end of the linear driving mechanism, and the power supply and voltage signal transmission module is communicated with an FPC (flexible printed circuit) communication contact of a wearable electronic product through the driving of the linear driving mechanism to transmit power supply and voltage signals.
The power supply and voltage signal transmission module comprises a fixed seat, adjusting blocks, a conductive fastening sleeve, a conductive column and a wiring terminal, wherein a sliding groove is formed in the fixed seat in the driving direction perpendicular to the linear driving mechanism, the two adjusting blocks are connected in the sliding groove in a sliding mode, a through hole perpendicular to the sliding groove is formed in each adjusting block, a conductive column is inserted in the through hole in a sliding mode, a spiral spring is sleeved on the conductive column, the spiral spring is contained in the through hole in the adjusting block and axially positioned through a spigot arranged on the inner wall of the through hole and a shaft shoulder arranged on the outer surface of the conductive column, the front end of the conductive column is a conductive end, the tail end of the conductive column is connected with the conductive fastening sleeve, and the conductive fastening sleeve is.
The two spiral springs are respectively accommodated at two ends of the through hole on the adjusting block.
The linear driving mechanism is a sliding cylinder, the fixing support is provided with an installation inclined plane, and the sliding cylinder is fixed on the installation inclined plane.
The inclination angle of the installation inclined plane is adapted to the inclination angle of the FPC communication contact on the wearable electronic product.
The product pressing module comprises a swing cylinder and a pressing piece, one end of the pressing piece is connected with the output end of the swing cylinder, and the other end of the pressing piece is a pressing end.
The invention has the advantages and beneficial effects that: the invention can realize the automatic audio test of the microphone in the environment of the wearable electronic product shielding field; the audio test communication module has strong adjustability, and the springs are added on two sides to ensure that the FPC contact is damaged little under the condition of contact communication.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the internal structure of the present invention;
FIG. 3 is a schematic structural diagram of an audio testing communication module according to the present invention;
FIG. 4 is an isometric view of an audio test communication module of the present invention.
In the figure: 1 is an audio shielding box; 2, wrist band products; 3 is a product positioning module; 4 is an audio test communication module; 5 is a simulation mouth; 6 is a simulation mouth fixing seat; 7 is a product pressing module; 71 is a pressing driving cylinder; 72 is a pressing part; 8 is a sliding table cylinder; 9 is a wiring terminal; 10 is a conductive fastening sleeve; 11 is an adjusting block; 12 is a conductive column; 13 is a helical spring; 14 is a fixed seat; 141 is a chute; 15 is a fixed bracket; 151 is an installation inclined plane; 16 is a four-axis robot; 17 is a shielding box door; 18 is a double-rod cylinder; and 19 is a supporting plate.
Detailed Description
When the conventional PCBA microphone is calibrated with audio frequency, the defects that automatic test cannot be carried out, the audio frequency test step is complex (test calibration is carried out by using a standard microphone after a loudspeaker is installed) and the like exist.
The design concept of the invention is as follows: aiming at the problems that automatic testing cannot be carried out and the audio testing steps are complicated when the PCBA microphone used in the prior art is calibrated with audio, the electronic product is locked in the product positioning module placing area through the product pressing module and then enters the shielding box. Under the environment of a shielding field, the audio test of the microphone is carried out on the electronic product through the audio test communication module, and the reliability of the audio of the microphone of the product is judged through the returned signal value. The audio test adopts the voltage signal change to judge the audio performance of the product when the sound card sounds, and replaces the mode of carrying out the audio performance test by using a standard microphone after a loudspeaker is installed on the product. The audio test communication module has strong adjustability, and the springs are added on two sides to ensure that the FPC contact is damaged little under the condition of contact communication.
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1-2, the audio testing apparatus for a microphone of a wearable electronic product provided by the present invention comprises an audio shielding box 1, and a product positioning module 3, an audio testing communication module 4, a simulation mouth 5 and a product pressing module 7 which are arranged inside the audio shielding box 1, wherein the product positioning module 3 is used for positioning the wearable electronic product; the product pressing module 7 is used for locking the wearable electronic product positioned on the product positioning module 3; the simulation mouth 5 is arranged on one side of the product positioning module 3 and used for providing a standard sound source for acoustic detection of the wearable electronic product; the audio test communication module 4 is arranged on the other side of the product positioning module 3 and is used for carrying out audio test on the microphone of the wearable electronic product 2.
One side of the audio shielding box 1 is provided with a shielding box door 17, the bottom of the audio shielding box 1 is provided with a box door opening and closing driving mechanism connected with the shielding box door 17, and the box door opening and closing driving mechanism drives the shielding box door 17 to open or close.
The product positioning module 3, the product pressing module 7, the audio test communication module 4 and the simulation nozzle 5 are installed on the inner side of the shielding box door 17 through the supporting plate 19, when the shielding box door 17 is opened, the product positioning module 3, the product pressing module 7, the audio test communication module 4 and the simulation nozzle 5 on the supporting plate 19 move to the outer side of the audio shielding box 1 along with the shielding box door 17, and the four-axis robot 16 is convenient to place the wearable electronic product 2 into the product positioning module 3 in cooperation with the vacuum chuck.
In an embodiment of the present invention, the door opening and closing driving mechanism is a dual-rod cylinder 18, the shielding door 17 is connected to a driving end of the dual-rod cylinder 18, and the dual-rod cylinder 18 drives the shielding door 17 to perform a linear motion, so as to open and close the shielding door 17.
The product pressing module 7 comprises a swing cylinder 71 and a pressing piece 72, wherein one end of the pressing piece 72 is connected with the output end of the swing cylinder 71, and the other end of the pressing piece is a pressing end. The pressing piece 72 is pressed down by the rotation of the tilt cylinder 71, so that the wearable electronic product 2 is locked. The contact part of the pressing part 72 and the wearable electronic product 2 adopts the glue attaching process (attaching 1mm silica gel).
The simulation mouth 5 is fixed on the supporting plate 19 through the simulation mouth fixing seat 6 and corresponds to the wearable electronic product 2 positioned on the product positioning module 3, and the position of the simulation mouth 5 installed on the simulation mouth fixing seat 6 is adjustable, so that the distance between the simulation mouth 5 and the wearable electronic product 2 is adjusted.
Simulating the function of the mouth 5: the simulation mouth 5 is used for providing a standard sound source for the acoustic detection of the wearable electronic product, so that the acoustic characteristics of an earphone and an MIC of the wearable electronic product, distortion and the like are transmitted to the upper computer through electric signals.
Standard sound source: the internationally recognized sound source covers each sound frequency point and the standard response value of the frequency point.
As shown in fig. 3-4, the audio test communication module 4 includes a fixing support 15, a linear driving mechanism and a power supply and signal transmission module, wherein the linear driving mechanism is disposed on the fixing support 15, the power supply and voltage signal transmission module is connected to an output end of the linear driving mechanism, and the power supply and voltage signal transmission module is driven by the linear driving mechanism to be connected to a FPC communication contact of the wearable electronic product, so as to transmit power supply and voltage signals.
The power supply and voltage signal transmission module comprises a fixed seat 14, adjusting blocks 11, a conductive fastening sleeve 10, conductive columns 12 and a wiring terminal 9, wherein a sliding groove 141 is formed in the fixed seat 14 in the driving direction perpendicular to the linear driving mechanism, the sliding groove 141 is a dovetail groove, the two adjusting blocks 11 are connected in the sliding groove 141 in a sliding mode, a through hole perpendicular to the sliding groove 141 is formed in each adjusting block 11, a conductive column 12 is inserted in the through hole in a sliding mode, the front end of the conductive column 12 is a conducting end, the tail end of the conductive column is connected with the conductive fastening sleeve 10, and the conductive fastening sleeve 10 is connected with the wiring terminal 9.
The two conductive posts 12 slide in the sliding slots 141 of the fixing base 14 through the adjusting block 11, so as to adjust the distance between the conductive posts 12, so as to adapt to the distance between the two contacts on the wearable product 2. The binding post of 12 tails of one of them conductive columns is connected with the power supply line, and the binding post of 12 tails of another conductive column is connected with voltage signal transmission line, and two binding posts are O type terminal.
The conductive column 12 is sleeved with a spiral spring 13, and the spiral spring 13 is accommodated in the through hole of the adjusting block 11 and is axially positioned by a spigot arranged on the inner wall of the through hole and a shaft shoulder arranged on the outer surface of the conductive column 12. Preferably, the conductive post 12 and the conductive fastening sleeve 10 are made of copper, and the fixing base 14 is made of high-strength and high-toughness non-metal material.
In an embodiment of the present invention, two coil springs 13 are respectively accommodated at two ends of the through hole of the adjusting block 11. The coil springs 13 at the two ends ensure that the damage to the FPC contact is small under the condition of contact communication.
In an embodiment of the present invention, the linear driving mechanism is a sliding cylinder 8, the fixing bracket 15 is provided with an installation inclined surface 151, and the sliding cylinder 8 is fixed on the installation inclined surface 151. The inclined angle of the installation inclined plane 151 is adapted to the inclined angle of the FPC communication contact (interface) on the wearable electronic product.
In an embodiment of the present invention, the adjusting block 11 is made of stainless steel, and the fixing base 14 is made of POM (polyoxymethylene).
The working principle of the invention is as follows:
the automatic carrying device places the wearing type product 2 in the placement area of the product positioning module 3, the oscillating cylinder 71 of the product pressing module 7 drives the pressing piece 72 to rotate to the upper part of the wearing type product 2 and to press down to be closed, and the wearing type product 2 is locked on the product positioning module 3. The double-rod cylinder 18 at the bottom of the audio shielding box 1 contracts, and the shielding box door 17 is closed to form a closed field. The sliding table cylinder 8 of the audio test communication module 4 acts, the front end of the copper guide pillar is communicated with the FPC communication contact of the wearable electronic product, and power supply and signal transmission preparation is well carried out. The simulation mouth 5 makes a standard sound to the wearable electronic product 2, so that the frequency response, distortion and other acoustic characteristics of the receiver and the MIC of the wearable electronic product 2 are transmitted to the upper computer through electric signals. The host computer passes through bluetooth and dresses type electronic product 2 communication, carries out the audio test of microphone, judges the reliability of the audio frequency of product microphone through the voltage signal value that returns.
The invention realizes the automatic production test by matching with a four-axis robot, and after a wearable electronic product 2 is placed in the product positioning module 3, the wearable electronic product is firstly pressed by the product pressing module 7 and then enters the test position in the audio shielding box 1, thereby ensuring the positioning accuracy of each test and avoiding the displacement in the carrying process. The audio test adopts the voltage signal change to judge the audio performance of the product when the sound card sounds, and replaces the mode of carrying out the audio performance test by using a standard microphone after a loudspeaker is installed on the product. The audio test communication module has strong adjustability, and the springs are added on two sides to ensure that the FPC contact is damaged little under the condition of contact communication.
The above description is only an embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, improvement, extension, etc. made within the spirit and principle of the present invention are included in the protection scope of the present invention.
Claims (8)
1. An audio testing device of a microphone of a wearable electronic product is characterized by comprising an audio shielding box, a product positioning module, a product pressing module, an audio testing communication module and a simulation mouth which are arranged in the audio shielding box, wherein,
the audio shielding box is used for providing a shielding field environment for the audio test of the microphone of the wearable electronic product;
the product positioning module is used for positioning the wearable electronic product;
the product pressing module is used for locking the wearable electronic product positioned on the product positioning module;
the simulation nozzle is arranged on one side of the product positioning module and used for providing a standard sound source for acoustic detection of the wearable electronic product;
the audio test communication module is arranged on the other side of the product positioning module and is used for carrying out audio test on a microphone of a wearable electronic product;
the audio test communication module comprises a fixed support, a linear driving mechanism and a power supply and signal transmission module, wherein the linear driving mechanism is arranged on the fixed support, the power supply and voltage signal transmission module is connected with the output end of the linear driving mechanism, and the power supply and voltage signal transmission module is communicated with an FPC (flexible printed circuit) communication contact of a wearable electronic product through the driving of the linear driving mechanism to carry out power supply and voltage signal transmission;
the power supply and voltage signal transmission module comprises a fixed seat, adjusting blocks, a conductive fastening sleeve, a conductive column, a spiral spring and a wiring terminal, wherein a sliding groove is formed in the fixed seat in the driving direction perpendicular to the linear driving mechanism, the two adjusting blocks are connected in the sliding groove in a sliding mode, a through hole perpendicular to the sliding groove is formed in each adjusting block, a conductive column is inserted in the through hole in a sliding mode, the spiral spring is sleeved on the conductive column, is accommodated in the through hole in the adjusting block and is axially positioned through a spigot arranged on the inner wall of the through hole and a shaft shoulder arranged on the outer surface of the conductive column, the front end of the conductive column is a conductive end, the tail end of the conductive column is connected with the conductive fastening sleeve, and the conductive fastening sleeve is connected.
2. The device for testing the audio frequency of the microphone of the wearable electronic product as claimed in claim 1, wherein a shielding box door is disposed on one side of the audio shielding box, a box door opening/closing driving mechanism connected to the shielding box door is disposed at the bottom of the audio shielding box, and the box door opening/closing driving mechanism drives the shielding box door to open or close.
3. The device for testing the audio frequency of the microphone of the wearable electronic product as claimed in claim 2, wherein the product positioning module, the product pressing module, the audio test communication module and the simulation nozzle are mounted on the inner side of the shielding box door through a supporting plate.
4. The audio testing device of the microphone of the wearable electronic product as claimed in claim 3, wherein the simulation mouth is fixed on the supporting plate through a simulation mouth fixing seat and corresponds to the wearable electronic product positioned on the product positioning module, and a distance between the simulation mouth and the wearable electronic product is adjustable.
5. The audio testing device for the microphone of the wearable electronic product as claimed in claim 2, wherein the door opening/closing driving mechanism is a double-rod cylinder, and the shielding door is connected to a driving end of the double-rod cylinder.
6. The audio testing device of the microphone of the wearable electronic product as claimed in claim 1, wherein the number of the coil springs is two, and the two coil springs are respectively accommodated at two ends of the through hole on the adjusting block.
7. The audio testing device of the microphone of the wearable electronic product as claimed in claim 1, wherein the linear driving mechanism is a sliding cylinder, the fixing bracket is provided with an installation inclined plane, the sliding cylinder is fixed on the installation inclined plane, and an inclination angle of the installation inclined plane is adapted to an inclination angle of the FPC communication contact on the wearable electronic product.
8. The audio testing device for the microphone of the wearable electronic product as claimed in any one of claims 1 to 5, wherein the product pressing module comprises a tilt cylinder and a pressing member, one end of the pressing member is connected to the output end of the tilt cylinder, and the other end of the pressing member is a pressing end.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710039805.0A CN106686512B (en) | 2017-01-18 | 2017-01-18 | Audio testing device for microphone of wearable electronic product |
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| CN201710039805.0A CN106686512B (en) | 2017-01-18 | 2017-01-18 | Audio testing device for microphone of wearable electronic product |
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| CN106686512B true CN106686512B (en) | 2020-04-03 |
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| CN109391893A (en) * | 2017-08-10 | 2019-02-26 | 百辰光电股份有限公司 | Microphone test equipment and its method |
| CN109672969B (en) * | 2017-10-16 | 2020-07-17 | 四方自动化机械股份有限公司 | Microphone testing device |
| CN108540918B (en) * | 2018-06-19 | 2024-04-02 | 深圳市海能达通信有限公司 | Intercom audio frequency function detection device |
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| CN109246572B (en) * | 2018-09-25 | 2020-12-01 | 上海金东唐科技有限公司 | Frequency response test jig and microphone parameter test system |
| CN109640238A (en) * | 2018-12-10 | 2019-04-16 | 苏州市精创测控技术有限公司 | A kind of automatic acoustics shielded box of drawer type |
| CN110290452B (en) * | 2019-05-17 | 2021-04-27 | 深圳康佳电子科技有限公司 | Acoustic test shielding box for microphone module at intelligent television end |
| CN110087176B (en) * | 2019-05-22 | 2021-09-28 | 格云特自动化科技（深圳）有限公司 | Multi-frequency-band clock frequency response detection equipment for microphone |
| CN112312295A (en) * | 2019-07-30 | 2021-02-02 | 深圳市韶音科技有限公司 | Evaluation device of bluetooth equipment |
| CN111491248A (en) * | 2020-04-07 | 2020-08-04 | 深圳回收宝科技有限公司 | Audio detection system and audio detection method of electronic product |
| CN113810836B (en) * | 2021-08-31 | 2024-03-12 | 盐城维信电子有限公司 | Automatic audio test system and automatic audio test method |
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