CN214667441U

CN214667441U - Microphone air tightness testing device of wireless earphone

Info

Publication number: CN214667441U
Application number: CN202121084323.5U
Authority: CN
Inventors: 蒋天洋
Original assignee: Shenzhen Megasig Measurement And Control Technology Co ltd
Current assignee: Shenzhen Megasig Measurement And Control Technology Co ltd
Priority date: 2021-05-19
Filing date: 2021-05-19
Publication date: 2021-11-09
Anticipated expiration: 2031-05-19

Abstract

The utility model discloses a microphone air tightness testing device of a wireless earphone, wherein a soft fixed profiling cavity for placing the earphone is arranged on a product support plate, and the soft fixed profiling cavity is used for placing the earphone; the first wheat blocking module comprises a vertical motion part and a first wheat blocking part, the vertical motion part can drive the first wheat blocking part to move up and down in the vertical direction, the first wheat blocking part comprises a first wheat blocking cantilever and a first soft wheat blocking profiling hole connected to the first wheat blocking cantilever, and the first soft wheat blocking profiling hole can be matched with the soft fixed profiling hole and can block an auxiliary wheat; the second wheat blocking module comprises a horizontal moving part and a second wheat blocking part, the second wheat blocking part comprises a second wheat blocking cantilever and a second soft wheat blocking profiling hole connected to the second wheat blocking cantilever, and the main wheat can be blocked by the second soft wheat blocking profiling hole. The utility model discloses can adapt to the TWS earphone of multiple model, fixed simple and convenient, stifled wheat effectual, easy and simple to handle, production efficiency height.

Description

Microphone air tightness testing device of wireless earphone

Technical Field

The utility model relates to an earphone test technical field especially relates to a microphone air tightness testing arrangement of wireless earphone.

Background

Background art 1: tws (true wireless stereo) wireless stereo. The implementation of this technology is based on the development of chip technology. Wired headsets can now be taken out of the line and become wireless headsets. Technically, the mobile phone is connected with the main sound box, and then the main sound box is connected with the auxiliary sound box in a Bluetooth wireless mode, so that real Bluetooth left and right sound channels are separated wirelessly for use. The TWS technology is widely applied to the field of Bluetooth headsets, and a new TWS Bluetooth headset is produced. That is, the left and right earpieces of the TWS headset may operate independently without a cable connection, respectively.

Background art 2: the Bluetooth headset is small and exquisite, portable, balanced in tone quality effect and popular in the world. The product control requirements necessary for producing the earphone are brought forward, and the common product controls include ENC, ANC, airtightness and the like. Whether the earphone microphone can collect audio from other parts of the earphone or not and whether the audio played by the loudspeaker of the earphone can be collected or not can be known through testing the air tightness of the earphone. The conditions of noise, sound breaking and sound leakage caused by splicing dislocation, part adhesion looseness, damage of the earphone cavity and the like in the earphone assembling process can be found.

The prior art is as follows: when the air tightness of the earphone is tested, the earphone is required to be fixed and the microphone needs to be plugged when the earphone is tested because the only open part designed by the earphone is at the position of the microphone, so that whether the cavity of the earphone is closed or not is judged. And because different earphones have different appearance designs, different earphones need different specially-made jigs to fix and block the wheat. The more traditional mode is that every earphone uses the plasticine alone to block up the effect of acoustic hole in order to play stifled wheat when the test, very inconvenient, greatly increased test time.

Therefore, a microphone air tightness testing device of a wireless earphone, which is suitable for TWS earphones of various models, is simple and convenient to fix, good in microphone blocking effect, simple and convenient to operate and high in production efficiency, is urgently needed.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a TWS earphone, fixed simple and convenient, stifled wheat of adaptation multiple model are effectual, easy and simple to handle, the high wireless earphone's of production efficiency microphone gas tightness testing arrangement.

In order to realize the purpose, the utility model provides a technical scheme does: there is provided a microphone airtightness testing apparatus for a wireless headset, adapted to test a handle-shaped headset product, comprising:

the earphone comprises a support, wherein a product support plate is arranged on the support, a soft fixed profiling hole for placing an earphone is arranged on the product support plate, and the soft fixed profiling hole is used for placing the earphone;

the first wheat blocking module comprises a vertical moving part and a first wheat blocking part, the vertical moving part can drive the first wheat blocking part to move up and down in the vertical direction, the first wheat blocking part comprises a first wheat blocking cantilever and a first soft wheat blocking profiling hole connected to the first wheat blocking cantilever, and the first soft wheat blocking profiling hole can be matched with the soft fixed profiling hole and can block an auxiliary wheat;

the second wheat blocking module comprises a horizontal moving part and a second wheat blocking part, the second wheat blocking part comprises a second wheat blocking cantilever and a second soft wheat blocking profiling hole connected to the second wheat blocking cantilever, and the second soft wheat blocking profiling hole can block the main wheat.

The first wheat blocking module further comprises a limiting part, a limiting column is arranged between the limiting part and the first wheat blocking cantilever, the limiting column is parallel to an output shaft of the vertical moving part, and when the vertical moving part moves in the vertical direction, the limiting column enables the first wheat blocking part to limit the movement in the vertical direction on a plane.

The product support plate is arranged above the support, the limiting part is arranged on the product support plate, the simulation ear is arranged below the product support plate, and the simulation ear is used for collecting the sound of the earphone loudspeaker.

The product support plate is characterized in that a simulated ear support plate is further arranged below the product support plate, and the simulated ears are arranged on the simulated ear support plate.

First soft stifled wheat profile modeling cave is silica gel profile modeling cave, a recess has been seted up in the middle of the silica gel profile modeling cave, the recess is suitable earphone shape to set up, the recess can with the earphone carries out sealed cladding.

The second soft wheat blocking profiling hole is a wheat blocking profiling hole of a sponge material structure.

A fine-tuning pressing module is further arranged between the first wheat blocking cantilever and the first soft wheat blocking profiling hole, and the fine-tuning pressing module can apply fine-tuning pressure to the first soft wheat blocking profiling hole and is used for uniformly pressing the earphone and blocking the auxiliary wheat.

The product support plate is provided with a first round hole, the soft fixed profiling cavity is fixed in the first round hole, a cylindrical colloid structure is further connected below the soft fixed profiling cavity, the cylindrical colloid structure is sleeved in the first round hole, and the soft fixed profiling cavity and the cylindrical colloid structure are of an integral structure.

The simulation ear support plate is provided with a second round hole, and the lower end of the simulation ear is detachably sleeved in the second round hole.

Still include the shell, the shell be used for with support, first stifled wheat module and the stifled wheat module of second seal, the inner wall of shell is equipped with sound insulation material.

Compared with the prior art, the utility model discloses wireless earphone's microphone gas tightness testing arrangement has following beneficial effect:

1. the utility model discloses a reduce cost and the operation of changing testing arrangement when reducing the different earphones of test through the function of simulation plasticine to this has improved holistic efficiency of software testing, has reduced test cost.

2. The utility model discloses a: the soft fixed profiling hole is used, and the part contacting with the earphone microphone is designed by using silica gel and sponge respectively, so that the effect of blocking the main microphone and the auxiliary microphone is maximized. The utility model discloses wholly adopt the aluminum alloy material, it is durable, the transport is light.

3. The utility model discloses a function of silica gel and sponge simulation plasticine can be used to produce line automation test earphone microphone air tightness, can reach the effect of plugging up main wheat and vice wheat and fixed earphone simultaneously. The utility model discloses in 100Hz-10 kHz's within range, the difference is 30dB around stifled wheat effect can reach (the actual effect uses the gas tightness of product self as the standard).

4. The utility model discloses stifled wheat cylinder possess a plurality of positions, and a plurality of angularly adjustable, adaptation wide range, different earphones only need to change soft fixed profile modeling cave and can use, but the vast handle form earphone product of majority on the adaptation market.

5. The utility model discloses can select two left ear earphones/two right ear earphones/a left ear earphone and a right ear earphone, test simultaneously, the flexibility ratio is high.

The invention will become more apparent from the following description when taken in conjunction with the accompanying drawings which illustrate embodiments of the invention.

Drawings

Fig. 1 is a schematic perspective view of the microphone air tightness testing device of the wireless earphone of the present invention.

Fig. 2 is an exploded view of an embodiment of the microphone airtightness testing apparatus for wireless headphones according to the present invention.

Detailed Description

Embodiments of the present invention will now be described with reference to the drawings, wherein like element numerals represent like elements throughout. As described above, as shown in fig. 1 and 2, an embodiment of the present invention provides a microphone airtightness testing apparatus 100 for wireless earphones, which is suitable for testing a handle-shaped earphone product, and includes:

the earphone comprises a support 1, wherein a product carrier plate 11 is arranged on the support 1, a soft fixed profiling hole 12 for placing an earphone is arranged on the product carrier plate 11, the soft fixed profiling hole 12 is used for placing an earphone (not shown in the figure), and the earphone is generally a handle-shaped Bluetooth earphone, more specifically, a TWS (true wireless stereo) wireless stereo, a common Bluetooth earphone and the like;

the first wheat blocking module 2 comprises a vertical moving part 21 and a first wheat blocking part 23, the vertical moving part 21 can drive the first wheat blocking part 23 to move up and down in the vertical direction, the first wheat blocking part 23 comprises a first wheat blocking cantilever 231 and a first soft wheat blocking profiling hole 232 connected to the first wheat blocking cantilever 231, the first soft wheat blocking profiling hole 232 can be matched with the soft fixed profiling hole 12 and can block a vice wheat (not shown in the figure), and in addition, when the first soft wheat blocking profiling hole 232 is pressed against the soft fixed profiling hole 12, an earphone can be fixed;

it should be noted that, in an embodiment, the vertical moving component 21 is implemented by driving of an air cylinder, an output shaft of the air cylinder makes a vertical linear motion to drive the first wheat blocking component 23 to make a vertical linear motion, and the first wheat blocking cantilever 231 is made of a hard and non-deformable aluminum alloy material or a stainless steel material.

Explaining the operation of the first microphone blocking module 2 when the earphone air tightness test is carried out:

in the initial state, as shown in fig. 1, the first wheat blocking module 2 is separated from the soft fixed profiling cavity 12.

In the first state, an earphone is placed in the soft fixed profiling hole 12, the first soft wheat blocking profiling hole 232 on the first wheat blocking cantilever 231 is aligned with the soft fixed profiling hole 12, the vertical moving part 21 moves downwards, the first soft wheat blocking profiling hole 232 is tightly pressed with the soft fixed profiling hole 12, meanwhile, the auxiliary wheat is blocked, and in the state, the earphone enters a state to be tested and can enter a testing state at any time.

In the second state, after the test is completed, the vertical moving component 21 moves upward, and the first soft profiling hole 232 is separated from the soft fixed profiling hole 12, so that the earphone can be conveniently taken out.

It should be noted that, in the first step and the second step, a pressure sensor may be disposed to detect the pressure between the first soft wheat blocking profiling cavity 232 and the soft fixed profiling cavity 12, and the minimum value and the maximum value of the pressure may be set to prevent the downward pressure of the first wheat blocking module 2 from being insufficient, and also prevent the downward pressure of the first wheat blocking module 2 from being too large. Specifically, the pressure sensor may be disposed between the first fitting cantilever 231 and the first soft fitting hole 232.

It should be noted that the movement amplitude of the first wheat blocking part 23 performing the linear movement in the vertical direction may be feedback-controlled by an in-place sensor, or may be preset by a program.

The second wheat blocking module 3 comprises a horizontal moving part 31 and a second wheat blocking part 32, the second wheat blocking part 32 comprises a second wheat blocking cantilever 321 and a second soft wheat blocking profiling hole (not shown in the figure) connected to the second wheat blocking cantilever 321, and the second soft wheat blocking profiling hole can block a main wheat.

It should be noted that the second wheat blocking module 3 is arranged in the vertical direction relative to the first wheat blocking module 2, the horizontal moving part 31 can be driven by a horizontally arranged cylinder, and the second wheat blocking cantilever 321 is made of an aluminum alloy material or a stainless steel material which is not easy to deform.

In one embodiment, the first wheat blocking module 2 further includes a limiting component 24, a limiting column 25 is disposed between the limiting component 24 and the first wheat blocking cantilever 231, the limiting column 25 is parallel to the output shaft of the vertical moving component 21, and when the vertical moving component 21 moves in the vertical direction, the limiting column 25 enables the first wheat blocking component 23 to limit the vertical movement on a plane.

It should be noted that the limiting column 25 has a limiting function of limiting the movement of the vertical moving component 21 in the vertical direction to move in the vertical direction in a plane formed by the output shaft of the vertical moving component 21 and the limiting column 25.

It should be noted that the limiting component 24 is provided with two shaft holes, one of the shaft holes allows the output shaft of the vertical moving component 21 to pass through, and the other shaft hole allows the limiting column 25 to pass through; one end and the position close to the middle of the first wheat blocking cantilever 231 are respectively provided with one shaft hole, and the output shaft of the vertical moving part 21 and the tail end of the limiting column 25 penetrate through the two shaft holes formed in the first wheat blocking cantilever 231. It is understood that the output shaft of the vertical moving component 21 movably passes through the shaft hole formed on the limiting component 24 and is fixedly connected with the shaft hole on the first wheat blocking cantilever 231, and two ends of the limiting column 25 are fixedly connected with the two shaft holes formed on the limiting component 24 and the first wheat blocking cantilever 231.

In one embodiment, referring to fig. 1 and 2, the product carrier plate 11 is disposed above the bracket 1, the limiting component 24 is disposed on the product carrier plate 11, the artificial ear 13 is disposed below the product carrier plate 11, and the artificial ear 13 is used for collecting sound of the earphone speaker. The product carrier plate 11 may be made of aluminum or stainless steel and is supported on the bracket 1 through a stud, and the limiting component 24 is fixed on the product carrier plate 11 through a bolt.

In one embodiment, referring to fig. 1 and 2, an artificial ear carrier plate 14 is further disposed below the product carrier plate 11, and the artificial ear 13 is disposed on the artificial ear carrier plate 14. The material of artificial ear support plate 14 can be aluminium material or stainless steel material to support through the double-screw bolt on the support 1, artificial ear support plate 14 is equipped with the fixed orifices that lets artificial ear 13 pass through, the lower extreme of artificial ear 13 passes the fixed orifices and fixes a position, helps gathering the sound signal that the earphone sent better.

In one embodiment, referring to fig. 1 and 2, the first soft block-up microphone profiling cavity 232 is a silica gel profiling cavity, a groove 233 is formed in the middle of the silica gel profiling cavity, the groove 233 is formed in a shape suitable for an earphone, and the earphone can be hermetically wrapped by the groove 233. Through setting up recess 233, increased first soft stifled wheat profile modeling cave 232 with the area of contact of close contact between the soft fixed profile modeling cave 12, consequently can be better with the earphone cladding in the recess 233 with in the airtight space that the soft fixed profile modeling cave 12 formed, can also better block vice wheat simultaneously, ensure the shutoff effect of vice wheat.

In one embodiment, referring to fig. 1 and 2, the second soft wheat plugging profiling cavity is a wheat plugging profiling cavity with a sponge structure. The second soft wheat plugging profiling hole is used for plugging the main wheat and is designed into a shape suitable for plugging the main wheat. The sponge material has a better sound insulation effect, so that a better plugging effect can be achieved.

In one embodiment, a fine-tuning pressing module (not shown) is further disposed between the first wheat-blocking cantilever 231 and the first soft wheat-blocking profiling cavity 232, and the fine-tuning pressing module can apply a fine-tuning pressure to the first soft wheat-blocking profiling cavity 232 for uniformly pressing the earphone to block the secondary wheat. The micro-adjustment pressing module can be driven by a micro motor matched with a spring or a micro motor matched with an air pump, and aims to enable the first soft profiling hole 232 for plugging wheat to more uniformly apply pressing force to the soft fixed profiling hole 12 so as to realize the effect of plugging wheat by wheat. In order to better block the wheat middlings, one proposal can be to make the first soft wheat-blocking profiling hole 232 achieve the effect of proper expansion so as to increase the pressing force between the first soft wheat-blocking profiling hole 232 and the soft fixed profiling hole 12 and the blocking effect on the wheat middlings.

In one embodiment, referring to fig. 1 and 2, a first circular hole 110 is formed on the product carrier 11, the soft fixed profiling cavity 12 is fixed in the first circular hole 110, a cylindrical colloid structure is further connected below the soft fixed profiling cavity 12, the cylindrical colloid structure is sleeved in the first circular hole 110, and the soft fixed profiling cavity 12 and the cylindrical colloid structure are an integral structure.

In one embodiment, referring to fig. 1 and 2, the artificial ear carrier plate 14 is provided with a second circular hole 111, and the lower end of the artificial ear 13 is detachably sleeved in the second circular hole 111. The second round hole 111 is provided, so that the artificial ear 13 can be well fixed.

In the two embodiments, the first round hole 110 and the second round hole 111 are arranged, so that when the test is carried out, the working personnel participating in the test can assemble the earphone and the artificial ear quickly, the positioning is accurate, the operation is simple and convenient, and the efficiency is high.

In one embodiment, referring to fig. 1 and 2, the wheat blocking device further comprises a housing (not shown) for sealing the support 1, the first wheat blocking module 2 and the second wheat blocking module 3, and the inner wall of the housing is provided with sound insulation material.

Referring to fig. 1 and 2, the utility model discloses a can test two earphones simultaneously, can freely select two left ear earphones/two right ear earphones/a left ear earphone right ear earphone, test simultaneously, the flexibility ratio is high.

The above disclosure is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the scope of the invention, therefore, the invention is not limited thereto.

Claims

1. The utility model provides a microphone airtightness testing arrangement of wireless earphone, is applicable to test handle form earphone product, its characterized in that includes:

2. The device for testing the air-tightness of a microphone of a wireless headset as claimed in claim 1, wherein the first microphone blocking module further comprises a limiting component, a limiting column is disposed between the limiting component and the first microphone blocking cantilever, the limiting column is disposed in parallel with the output shaft of the vertical moving component, and when the vertical moving component moves in the vertical direction, the limiting column limits the first microphone blocking component to move in the vertical direction on a plane.

3. The apparatus of claim 2, wherein the product carrier is disposed above the bracket, the position-limiting member is disposed on the product carrier, and a dummy ear is disposed under the product carrier for collecting sound of the speaker of the earphone.

4. The apparatus of claim 3, wherein a simulated ear carrier plate is further disposed under the product carrier plate, and the simulated ear is disposed on the simulated ear carrier plate.

5. The device for testing the air tightness of a microphone of a wireless earphone according to claim 1 or 3, wherein the first soft microphone-blocking profiling cavity is a silica gel profiling cavity, a groove is formed in the middle of the silica gel profiling cavity, the groove is formed in a shape suitable for an earphone, and the groove can seal and wrap the earphone.

6. The device for testing the air-tightness of a microphone of a wireless earphone according to claim 1, wherein the second soft microphone blocking profiling cavity is a microphone blocking profiling cavity of a sponge structure.

7. The device as claimed in claim 5, wherein a fine tuning pressing module is disposed between the first microphone-blocking cantilever and the first soft microphone-blocking profiling cavity, and the fine tuning pressing module can apply a fine tuning pressure on the first soft microphone-blocking profiling cavity for uniformly pressing the microphone to block the sub microphone.

8. The device as claimed in claim 3, wherein the product carrier has a first circular hole, the soft fixed profiling cavity is fixed in the first circular hole, a cylindrical colloid structure is further connected below the soft fixed profiling cavity, the cylindrical colloid structure is inserted into the first circular hole, and the soft fixed profiling cavity and the cylindrical colloid structure are an integral structure.

9. The apparatus of claim 4, wherein the simulated ear carrier plate has a second circular hole, and the lower end of the simulated ear is detachably inserted into the second circular hole.

10. The apparatus for testing microphone airtightness of a wireless headset according to claim 1, further comprising a housing for sealing the holder, the first microphone blocking module and the second microphone blocking module, wherein an inner wall of the housing is provided with a sound insulating material.