CN112816151A - MIC (many Integrated core) air tightness detection device and detection method - Google Patents
MIC (many Integrated core) air tightness detection device and detection method Download PDFInfo
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- CN112816151A CN112816151A CN202011628445.6A CN202011628445A CN112816151A CN 112816151 A CN112816151 A CN 112816151A CN 202011628445 A CN202011628445 A CN 202011628445A CN 112816151 A CN112816151 A CN 112816151A
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- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/26—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
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Abstract
The utility model relates to a MIC gas tightness detection device and detection method, belong to microphone check out test set field, the on-line screen storage device comprises a base, be provided with the operation panel on the base, be provided with the determine module who is used for detecting the gas tightness on the base, be provided with the fixed station on the operation panel, the both sides that just are located the fixed station on the operation panel are provided with sealed piece, the height that highly is higher than the fixed station of sealed piece, sealed piece along the direction sliding connection on the operation panel of orientation fixed station, all seted up the seal groove on the face that two sealed pieces are relative, be provided with the gasbag in the seal groove, be provided with the air pump that is used for aerifing or bleeding in the gasbag towards on the base, be provided with the. The method and the device have the effect of ensuring the accuracy of the air tightness detection of the microphone of the electronic product.
Description
Technical Field
The application relates to the field of microphone detection equipment, in particular to an MIC (microphone) airtightness detection device and method.
Background
The microphone plays the role of a microphone on the mobile terminal, a microphone hole for picking up a voice signal is formed in the mobile terminal, the voice signal enters the microphone hole through a sound pick-up structure of the microphone after entering the microphone hole, and the microphone sends the voice signal to the opposite terminal. Therefore, the quality of the air tightness of the microphone directly determines the conversation sound quality of the mobile terminal.
The current chinese patent of No. CN109708814A discloses an automatic electronic product MIC gas tightness test system, stop gear in the middle of the sealing mechanism and the main part at main part, main part both ends, sealing mechanism includes the rubber pad, one side fixedly connected with base of main part, fixedly connected with operation panel in the middle of the top of base, the rubber pad is located in the middle of the both sides of operation panel, the position department fixedly connected with connecting rod that corresponds to the rubber pad in the middle of the both sides of operation panel, the fixedly connected with pneumatic cylinder in the middle of one side of connecting rod, one side of rubber pad is corresponding to the position department fixedly connected with spacing spring of operation panel.
In view of the above-mentioned related technologies, the inventor thinks that when using the test system, the electronic product needs to be placed on the operation table, and the hydraulic cylinder drives the rubber pad to seal the microphone of the electronic product, thereby realizing the air tightness test of the microphone of the electronic product.
Disclosure of Invention
In order to ensure the accuracy of the air tightness detection of the microphone of the electronic product, the application provides an MIC air tightness detection device and an MIC air tightness detection method.
In a first aspect, the present application provides an MIC airtightness detection apparatus, which adopts the following technical scheme:
the utility model provides a MIC gas tightness detection device, includes the base, be provided with the operation panel on the base, be provided with the determine module that is used for detecting the gas tightness on the base, be provided with the fixed station on the operation panel, the both sides that just are located the fixed station on the operation panel are provided with sealed piece, the height that highly is higher than the fixed station of sealed piece, sealed piece along the direction sliding connection of orientation fixed station on the operation panel, two the seal groove has all been seted up on the face that sealed piece is relative, be provided with the gasbag in the seal groove, be provided with on the base and be used for aerifing or the air pump of bleeding in the gasbag, be provided with the fixing device who is used for fixed electronic product position on the operation panel.
By adopting the technical scheme, when the detection device is used for detecting the air tightness of the microphone of the electronic product, a detection person places the electronic product on the fixing table, and makes one side of the microphone of the electronic product opposite to one sealing block, fixes the position of the electronic product by using the fixing device, then makes the two sealing blocks move towards the electronic product, and makes the end part of the electronic product enter the sealing groove on the sealing block, starts the air pump, the air pump inflates towards the air bag, so that in the process of inflating the air bag, the air bag can fill the gap between the electronic product and the sealing groove and block the microphone of the electronic product, then the detection person can use the detection assembly to test the air tightness of the electronic product, and after the test is finished, the detection person starts the air pump again to pump the air of the air bag to separate the electronic product from the sealing blocks, the microphone can be sealed by the air bag, the air bag cannot deform in the long-term use process, the sealing of the microphone can be guaranteed, and the accuracy of the air tightness detection of the microphone of an electronic product is guaranteed.
Optionally, the operating platform is provided with a chute, the chute is formed along a straight line direction where the two sealing blocks are located, the two sealing blocks are both provided with a sliding block connected in the chute in a sliding manner, the sliding block is matched with the chute, and the operating platform is provided with a driving device for driving the two sealing blocks to approach or separate from each other.
Through adopting above-mentioned technical scheme, arrange the electronic product in the fixed station after, start drive arrangement, drive arrangement can drive two sealed pieces and be close to each other to make in the tip of electronic product can get into the seal groove, sealed piece can drive the slider and remove in the spout when removing, slider and spout can play the guide effect to the removal of sealed piece, and utilize drive arrangement to make detection device's use more convenient.
Optionally, the driving device includes a bidirectional screw rod rotatably connected in the chute, the bidirectional screw rod is arranged along the length direction of the chute, two sets of screw thread portions are arranged on the bidirectional screw rod, the screw directions of the two sets of screw thread portions are opposite, one of the two screw thread portions is sleeved with the slider thread, the other of the two screw thread portions is sleeved with the slider thread, and a motor for driving the bidirectional screw rod to rotate is arranged on the operating platform.
Through adopting above-mentioned technical scheme, behind the starter motor, the two-way lead screw of motor drive rotates, this moment because the slider is located the spout, the slider can not follow two-way lead screw and rotate, and two slider screw threads cup joint on two screw thread portions of two-way lead screw, consequently two sliders can be close to each other or keep away from on two-way lead screw, the slider then can drive sealed piece when removing and remove, make two sealed pieces be close to each other or keep away from, and two-way lead screw has auto-lock nature, after stall, the position alright with fixed of slider and sealed piece.
Optionally, fixing device is including setting up two fixed plates on the operation panel, two the fixed plate sets up relatively, and two the rectilinear direction at fixed plate place is perpendicular with the rectilinear direction at two sealed piece places, the cross sectional shape of fixed plate sets up to the arc, one side of fixed plate is articulated to be set up on the operation panel, just be located articulated department on the fixed plate and be provided with the torsional spring, the one end and the fixed plate fixed connection of torsional spring, the other end and operation panel fixed connection.
Through adopting above-mentioned technical scheme, at the in-process of arranging the electronic product on the fixed station in, the fixed plate is rotated to the direction of keeping away from the fixed station through the pin joint orientation earlier, arrange the electronic product in between the mesa and the fixed plate of fixed station afterwards, fixed plate pivoted in-process can drive the torsional spring and rotate, the torsional spring just can produce elasticity after rotating, make the fixed plate have orientation fixed station pivoted trend, thereby make one side butt of fixed station to the electronic product, thereby fix the electronic product on the fixed station, so just realized the fixed of electronic product, and overall structure is simple, and convenient to use.
Optionally, the fixed station includes fixed part and lift portion, the holding tank has been seted up on the fixed part, lift portion is along vertical direction sliding connection in the holding tank, be provided with the mounting that is used for fixed lift position on the fixed part.
Through adopting above-mentioned technical scheme, at the different thickness of electronic product, the position that the staff can adjust lift portion on the fixed part makes lift portion reciprocate in the holding tank to make the mesa altitude variation of fixed station, the mesa height of fixed station is lower, and the position that the seal groove exposes is more, just makes the electronic product of different thickness all can get into in the seal groove this moment, thereby has improved detection device's application range.
Optionally, a strip-shaped hole is formed in the side wall of the fixing portion in the vertical direction, the strip-shaped hole penetrates into the accommodating groove, a supporting plate is arranged in the accommodating groove and below the lifting portion, the fixing piece comprises a screw rod arranged on the supporting plate, the screw rod penetrates through the strip-shaped hole and extends to the outside of the fixing portion, and a fixing nut is connected to the screw rod through threads.
Through adopting above-mentioned technical scheme, after the position of adjusting lift portion, remove the screw rod in the bar downthehole, make the screw rod drive the backup pad and remove, make the backup pad can with the bottom butt of lift portion, screw up fixation nut again afterwards, make fixation nut support tightly to the lateral wall of fixed part on, so alright with the position of fixed support board to make the backup pad with the rigidity of lift portion.
Optionally, a rubber strip is arranged on one side of the fixing plate away from the hinge joint, and the rubber strip extends along the length direction of the side of the fixing plate.
Through adopting above-mentioned technical scheme, the setting up of rubber strip can increase the friction between fixed plate and the electronic product, improves the fixed effect to the electronic product, also can reduce the damage that produces the electronic product simultaneously.
Optionally, a pressing plate is disposed at a position where the fixing plate is located at the hinge.
Through adopting above-mentioned technical scheme, measurement personnel utilize and press the clamp plate to make the fixed plate rotate, have further made things convenient for electronic product's fixed.
In a second aspect, the present application provides a method B, which adopts the following technical solution:
a MIC airtightness detection method comprises the MIC airtightness detection device, and comprises the following steps:
fixing the electronic product: placing the electronic product on a fixed table, enabling one side where the microphone of the electronic product is located to face any one sealing block, and fixing the position of the electronic product by using a fixing device;
sealing the microphone: the sealing blocks on the two sides move towards the electronic product, the end part of the electronic product enters the sealing groove, the air pump is started to inflate the air bag in the sealing groove, and the microphone of the electronic product is sealed by the air bag;
and (3) detecting air tightness: the electronic product is inflated by the detection assembly, and the air pressure difference of the electronic product within a certain time is measured, so that the air tightness of the electronic product is measured.
Through adopting above-mentioned technical scheme, make the tip of electronic product get into in the seal groove, utilize the gasbag to fill the clearance between seal groove and the electronic product, make the gasbag sealed the microphone of electronic product, then carry out the gas tightness to the microphone of electronic product and detect, and the gasbag more can guarantee the sealed effect to the microphone at the in-process of long-term use to the accuracy nature of detection data has been guaranteed.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the fixing table is arranged on the operation table, the sealing blocks are arranged on two sides of the fixing table, the sealing grooves are formed in the sealing blocks, the air bags are arranged in the sealing grooves, and the air tightness of the microphone of the electronic product is detected, so that the microphone of the electronic product can be sealed by the air bags, the air bags cannot deform after being used for a long time, the sealing effect on the microphone can be always ensured, and the accuracy of the air tightness detection of the microphone of the electronic product is ensured;
2. the two sealing blocks are driven to move through the driving device, so that a detection person does not need to manually move the sealing blocks, and the use convenience of the detection device is improved.
Drawings
FIG. 1 is a schematic diagram of the overall structure of an embodiment of the present application;
FIG. 2 is a schematic structural diagram of the operation table in FIG. 1 according to an embodiment of the present disclosure;
FIG. 3 is an enlarged partial schematic view of portion A of FIG. 2;
FIG. 4 is a schematic structural diagram of the fixing table in FIG. 2 hidden in an embodiment of the present application;
fig. 5 is a schematic cross-sectional structure of fig. 2 according to an embodiment of the present disclosure.
Description of reference numerals: 1. a base; 11. an operation table; 111. a chute; 12. a detection component; 2. a fixed table; 21. a fixed part; 211. accommodating grooves; 212. a strip-shaped hole; 22. a lifting part; 23. a support plate; 231. a screw; 232. fixing a nut; 3. a sealing block; 31. a sealing groove; 32. an air bag; 33. an air pump; 34. a connecting pipe; 35. a slider; 4. a bidirectional lead screw; 41. a motor; 5. a fixing plate; 51. hinging a shaft; 52. a torsion spring; 53. a rubber strip; 54. and pressing the plate.
Detailed Description
The present application is described in further detail below with reference to figures 1-5.
The embodiment of the application discloses MIC gas tightness detection device.
Referring to fig. 1 and 2, an MIC airtightness detection apparatus includes a base 1, an operation console 11 and a detection component 12 are disposed on the base 1, the detection component 12 can detect the airtightness of a microphone, the detection component 12 includes a digital airtightness instrument, an inflation tube, a pressure measurement tube and a detection system on a PC, and detection of the airtightness of the microphone is performed as the prior art and is not described in detail in this embodiment. Fixedly connected with fixed station 2 on the operation panel 11, the both sides sliding connection who just is located fixed station 2 on the operation panel 11 has sealed piece 3, sealed piece 3 can move towards or keep away from operation panel 11, sealed piece 3 highly is higher than the height of fixed station 2, seal groove 31 has all been seted up on two sealed 3 relative faces of piece, be provided with gasbag 32 in the seal groove 31, the gasbag 32 chooses for use the rubber material, the gasbag 32 of rubber has better sealed effect, simultaneously also be difficult for damaging, install air pump 33 on the base 1, the intercommunication is provided with two connecting pipes 34 on the gas output of air pump 33, two connecting pipes 34 and two gasbag 32 one-to-ones, utilize air pump 33 to aerify or take out the gasbag 32 in to gasbag 32, be provided with fixing device on the operation panel 11, fixing device can fix the position of electronic product.
The inspector places the electronic product on the fixing table 2, fixes the position of the electronic product by using the fixing device, makes the end of the electronic product enter the sealing groove 31 on the sealing block 3, starts the air pump 33, inflates the air pump 33 towards the air bag 32, the air bag 32 can fill the gap between the electronic product and the sealing groove 31, seals the microphone of the electronic product, and then the inspector can use the detecting component 12 to test the air tightness of the electronic product.
Referring to fig. 2 and 3, fixing device includes two fixed plates 5 that set up relatively on operation panel 11, the rectilinear direction at two fixed plates 5 places is perpendicular with the rectilinear direction at two sealed piece 3 places, fixed plate 5 is whole to be an arc, and one side fixedly connected with articulated shaft 51 of fixed plate 5, articulated shaft 51 rotates and connects on operation panel 11, the opposite side of fixed plate 5 then with the mesa butt of fixed station 2, the cover is equipped with torsional spring 52 on the articulated shaft 51 on the fixed plate 5, the one end and the fixed plate 5 fixed connection of torsional spring 52, the other end and operation panel 11 fixed connection.
At the in-process of fixed electronic product, rotate fixed plate 5 through the articulated shaft, make fixed plate 5 towards the direction rotation of keeping away from fixed station 2, torsional spring 52 can produce elasticity rotating the in-process, place electronic product in between the mesa of fixed plate 5 and fixed station 2, relax fixed station 2, the elasticity of torsional spring 52 can make fixed plate 5 tightly support on electronic product to fix fixed plate 5 on fixed station 2.
Referring to fig. 2 and 3, in order to improve the fixing effect and reduce damage to the electronic product, a rubber strip 53 is adhered to a side of the fixing plate 5 away from the hinge joint, and the rubber strip 53 extends along the length direction of the side of the fixing plate 5; meanwhile, in order to rotate the fixing plate 5, the fixing plate 5 is integrally connected with a pressing plate 54 at the position of the hinge, and the inspector can press the pressing plate 54 to drive the fixing plate 5 to rotate.
Referring to fig. 2 and 4, in order to make the use of the detection device more convenient, a sliding groove 111 is formed in the operating platform 11 along the linear direction where the two sealing blocks 3 are located, the two sealing blocks 3 are uniformly connected with a sliding block 35 in sliding connection with the sliding groove 111, the sliding block 35 is matched with the sliding groove 111, and a driving device is arranged on the operating platform 11 and can drive the two sealing blocks 3 to approach or separate from each other.
Referring to fig. 2 and 4, the driving device includes a bidirectional screw rod 4, the bidirectional screw rod 4 is rotatably connected in the sliding groove 111 along the length direction of the sliding groove 111, two sets of screw thread portions are arranged on the bidirectional screw rod 4, the screw directions of the two sets of screw thread portions are opposite, one sliding block 35 is in threaded sleeve connection with one screw thread portion of the bidirectional screw rod 4, the other sliding block 35 is in threaded sleeve connection with the other screw thread portion of the bidirectional screw rod 4, a motor 41 is fixedly mounted on the operating platform 11, and an output shaft of the motor 41 is coaxially connected with the bidirectional screw rod 4.
In using detection device, after fixing electronic product to fixed station 2, motor 41 is started, motor 41 drives two-way lead screw 4 and rotates, slider 35 is owing to be located spout 111 this moment, two-way lead screw 4 can not drive slider 35 and rotate, and two sliders 35 are located two screw thread portions of two-way lead screw 4, consequently two sliders 35 can be close to each other or keep away from on two-way lead screw 4, two sliders 35 drive two seal blocks 3 and are close to each other or keep away from again, make electronic product's tip get into or shift out seal groove 31, so just need not the manual work and go to remove seal block 3, the convenience that detection device used has been improved.
Referring to fig. 2 and 5, fixed station 2 includes fixed part 21 and lift portion 22, holding tank 211 has been seted up on fixed part 21, lift portion 22 is along vertical direction sliding connection in holding tank 211, be provided with the mounting on the fixed part 21, bar hole 212 has been seted up along vertical direction on the lateral wall of fixed part 21, bar hole 212 runs through to holding tank 211 in, the below that just is located lift portion 22 in holding tank 211 is provided with backup pad 23, the mounting is including setting up the screw rod 231 at backup pad 23, screw rod 231 passes bar hole 212 and extends to outside fixed part 21, threaded connection has fixation nut 232 on the screw rod 231, fixation nut 232 supports tightly on the lateral wall of fixed part 21.
When the thickness of electronic product is different, the staff can adjust the position of lift 22 on fixed part 21, makes lift 22 reciprocate in holding tank 211 to make the mesa altitude variation of fixed station 2, the mesa height of fixed station 2 is lower, and the position that seal groove 31 exposes is more, just so makes the electronic product of different thickness all can get into in seal groove 31 this moment, thereby has improved detection device's application range.
The implementation principle of the MIC airtightness detection device in the embodiment of the application is as follows: when the detection device is used for detecting the air tightness of the microphone of the electronic product, a detector places the electronic product on the fixed table 2, the side of the electronic product where the microphone is located is opposite to one of the sealing blocks 3, the position of the electronic product is fixed by using the two fixed plates 5, then the motor 41 is started, the two sealing blocks 3 move towards the electronic product, the end part of the electronic product enters the sealing groove 31 on the sealing block 3, the air pump 33 is started, the air pump 33 inflates towards the air bag 32, in the process of inflating the air bag 32, the air bag 32 can fill the gap between the electronic product and the sealing groove 31 and block the microphone of the electronic product, then the detector can use the detection assembly 12 to test the air tightness of the electronic product, and after the test is finished, the detector restarts the air pump 33 to pump the air of the air bag 32, make the electronic product with seal 3 separation can, utilize gasbag 32 can seal the microphone to gasbag 32 can not produce the deformation at the in-process of long-term use, can guarantee the sealed of microphone, and then guarantee the accuracy nature that electronic product microphone gas tightness detected.
The embodiment of the application also discloses an MIC airtightness detection method, which comprises the MIC airtightness detection device, and comprises the following steps:
fixing the electronic product: placing the electronic product on the fixed table 2, enabling one side where the microphone of the electronic product is located to face any one sealing block 3, and fixing the position of the electronic product by using a fixing device;
sealing the microphone: the sealing blocks 3 on the two sides move towards the electronic product, the end part of the electronic product enters the sealing groove 31, the air pump 33 is started to inflate the air bag 32 in the sealing groove 31, and the microphone of the electronic product is sealed by the air bag 32;
and (3) detecting air tightness: the detecting component 12 is used for inflating the electronic product and measuring the air pressure difference of the electronic product within a certain time, thereby measuring the air tightness of the electronic product.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (9)
1. The utility model provides a MIC gas tightness detection device, includes base (1), be provided with operation panel (11) on base (1), be provided with on base (1) and be used for detecting determine module (12) of gas tightness, its characterized in that: be provided with fixed station (2) on operation panel (11), the both sides that just are located fixed station (2) on operation panel (11) are provided with sealed piece (3), the height that highly is higher than fixed station (2) of sealed piece (3), sealed piece (3) are along the direction sliding connection towards fixed station (2) on operation panel (11), two seal groove (31) have all been seted up on the relative face of sealed piece (3), be provided with gasbag (32) in seal groove (31), be provided with air pump (33) that are used for aerifing or bleed in gasbag (32) towards on base (1), be provided with the fixing device who is used for fixed electronic product position on operation panel (11).
2. A MIC airtightness detection apparatus according to claim 1, wherein: the operating table (11) is provided with a sliding groove (111), the sliding groove (111) is formed in the linear direction where the two sealing blocks (3) are located, sliding blocks (35) which are connected into the sliding groove (111) in a sliding mode are arranged on the two sealing blocks (3), the sliding blocks (35) are matched with the sliding groove (111), and a driving device used for driving the two sealing blocks (3) to be close to or away from each other is arranged on the operating table (11).
3. A MIC airtightness detection apparatus according to claim 2, wherein: the driving device comprises a bidirectional screw rod (4) which is rotatably connected in a sliding groove (111), the bidirectional screw rod (4) is arranged along the length direction of the sliding groove (111), two groups of threaded parts are arranged on the bidirectional screw rod (4), the spiral directions of the threaded parts are opposite, one sliding block (35) is sleeved on one threaded part of the bidirectional screw rod (4) in a threaded manner, the other sliding block (35) is sleeved on the other threaded part of the bidirectional screw rod (4) in a threaded manner, and a motor (41) which is used for driving the bidirectional screw rod (4) to rotate is arranged on the operating platform (11).
4. A MIC airtightness detection apparatus according to claim 1, wherein: fixing device is including setting up two fixed plate (5) on operation panel (11), two fixed plate (5) set up relatively, and two the rectilinear direction at fixed plate (5) place is perpendicular with the rectilinear direction at two sealed piece (3) places, the cross sectional shape of fixed plate (5) sets up to the arc, one side of fixed plate (5) is articulated to be set up on operation panel (11), just be located articulated department on fixed plate (5) and be provided with torsional spring (52), the one end and fixed plate (5) fixed connection of torsional spring (52), the other end and operation panel (11) fixed connection.
5. A MIC airtightness detection apparatus according to claim 1, wherein: fixed station (2) include fixed part (21) and lift portion (22), holding tank (211) have been seted up on fixed part (21), lift portion (22) are along vertical direction sliding connection in holding tank (211), be provided with the mounting that is used for fixed lift portion (22) position on fixed part (21).
6. A MIC airtightness detection apparatus according to claim 5, wherein: strip-shaped hole (212) have been seted up along vertical direction on the lateral wall of fixed part (21), strip-shaped hole (212) run through to holding tank (211) in, the below that just is located lift portion (22) in holding tank (211) is provided with backup pad (23), the mounting is including setting up screw rod (231) at backup pad (23), screw rod (231) pass strip-shaped hole (212) and extend to outside fixed part (21), threaded connection has fixation nut (232) on screw rod (231).
7. A MIC airtightness detection apparatus according to claim 4, wherein: the fixed plate (5) is provided with a rubber strip (53) on one side far away from the hinged part, and the rubber strip (53) extends along the length direction of the side of the fixed plate (5).
8. A MIC airtightness detection apparatus according to claim 4, wherein: the fixed plate (5) is provided with a pressing plate (54) at the position of the hinged position.
9. A MIC airtightness detection method comprising an MIC airtightness detection apparatus according to any one of claims 1 to 8, comprising the steps of:
fixing the electronic product: placing the electronic product on a fixed table (2), enabling the side where the microphone of the electronic product is located to face any one sealing block (3), and fixing the position of the electronic product by using a fixing device;
sealing the microphone: the sealing blocks (3) on the two sides move towards the electronic product, the end part of the electronic product enters the sealing groove (31), the air pump (33) is started to inflate the air bag (32) in the sealing groove (31), and the microphone of the electronic product is sealed by the air bag (32);
and (3) detecting air tightness: the electronic product is inflated by the detection component (12), and the air pressure difference of the electronic product within a certain time is measured, so that the air tightness of the electronic product is measured.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202011628445.6A CN112816151B (en) | 2020-12-31 | 2020-12-31 | MIC air tightness detection device and detection method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011628445.6A CN112816151B (en) | 2020-12-31 | 2020-12-31 | MIC air tightness detection device and detection method |
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| CN112816151A true CN112816151A (en) | 2021-05-18 |
| CN112816151B CN112816151B (en) | 2023-07-14 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114885268A (en) * | 2022-05-07 | 2022-08-09 | 河北初光汽车部件有限公司 | Vehicle-mounted microphone detection device |
| CN115655597A (en) * | 2022-12-13 | 2023-01-31 | 杭州兆华电子股份有限公司 | Air tightness detection system and method for microphone |
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