CN210518828U

CN210518828U - Microphone testing device

Info

Publication number: CN210518828U
Application number: CN201921573668.XU
Authority: CN
Inventors: 杨志法
Original assignee: Intelligent Automation Equipment Zhuhai Co Ltd
Current assignee: Intelligent Automation Equipment Zhuhai Co Ltd; Intelligent Automation Zhuhai Co Ltd
Priority date: 2019-09-20
Filing date: 2019-09-20
Publication date: 2020-05-12
Anticipated expiration: 2029-09-20

Abstract

The utility model discloses a microphone testing arrangement aims at providing a simple structure, test stability height, realize the non-microphone testing arrangement who tests simultaneously and economic benefits is better with face. The utility model discloses an electric cabinet module, be provided with the sound-proof box on the electric cabinet module and be in the module, the support plate module push down in the sound-proof box, the module setting is in push down on the electric cabinet module, the support plate module sets up push down the module with between the electric cabinet module, be provided with test component one on the module, be provided with on the support plate module with test component one matched with test component two, push down the module the support plate module test component one with test component two all with the electric cabinet module electricity is connected. The utility model discloses can be applied to the technical field of microphone test.

Description

Microphone testing device

Technical Field

The utility model discloses can be applied to the technical field of microphone test, in particular to microphone testing arrangement.

Background

A microphone: the microphone is a known name, and is an energy conversion device for converting a sound signal into an electric signal; the sound vibration is transmitted to the diaphragm of the microphone to push the magnet inside to form a variable current, and the variable current is transmitted to a following sound processing circuit for amplification processing.

A horn: when different electronic energy is transmitted to the coil, the coil generates energy and magnetic field interaction of the magnet, the interaction causes paper disc vibration, because the electronic energy changes at any time, the coil of the loudspeaker can move forwards or backwards, so that the paper disc of the loudspeaker can move along with the paper disc, and the action causes the density degree of air to change to generate sound.

A sound insulation box: the box structure formed by adopting special sound absorption materials has the advantages that firstly, the sound wave frequency band inside the equipment is limited to exceed a certain area, namely, internal interference sound waves are absorbed, and secondly, the external sound wave frequency band is prevented from entering the certain area, namely, external interference sound waves are shielded.

Sound card: the Sound Card is the most basic component in multimedia technology, and is a hardware for realizing Sound wave/digital signal interconversion.

With the rapid update of modern science and technology, the micro microphone is widely applied to various electro-acoustic consumer products, professional sound equipment and the like, along with the increasing requirements of modern stereo effect and noise reduction function, in order to ensure that the sound transmission performance of the micro microphone meets the design and use standards, users can feel satisfied with the communication quality, and simultaneously the voice can be kept clear in noisy environment, so that some high-grade electro-acoustic consumer products realize the noise reduction function by using two micro microphones on the design, one microphone receives the voice inwards, the other microphone detects the low-frequency noise (100-1000 Hz) in the environment outwards, the noise signal is transmitted to a control circuit by using a noise reduction system of the product, the control circuit carries out real-time operation, and then a Hi-loudspeaker plays a sound wave with the opposite phase and the same amplitude as the noise to offset the noise to generate the same reverse sound wave, after the superposition, the noise disappears and cannot be heard, so that the noise reduction effect is realized, and therefore, various phonetics tests are required to be carried out on the special microphones provided with two microphones on different surfaces so as to ensure that whether the noise reduction function of the microphones can be normally realized when the microphones are arranged on a product.

At present, the traditional domestic test industry can only test a plurality of microphone test machines on the same surface basically, if microphones on different surfaces need to be tested, two different machines need to be made, one is used for testing the front surface, and the other is used for testing the back surface, so that the separate test mode needs to increase the other half of manpower and material resources, and the UPH requirement of a manufacturer on the test cannot be met; meanwhile, the judgment and analysis of the noise reduction function are not facilitated, the noise reduction function is realized by the mutual matching of the two microphones, the structural difficulty and the sealing difficulty are increased by the non-coplanar test, and a good non-coplanar microphone test mode is not provided.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that overcome prior art not enough, provide a simple structure, test stability height, realize non-coplanar microphone concurrent test and the better microphone testing arrangement of economic benefits.

The utility model adopts the technical proposal that: the utility model discloses an electric cabinet module, be provided with the sound-proof box on the electric cabinet module and be in the module, the support plate module push down in the sound-proof box, the module sets up down on the electric cabinet module, the support plate module sets up the module push down with between the electric cabinet module, be provided with test component one on the module push down, be provided with on the support plate module with test component one matched with test component two, push down the module the support plate module test component one with test component two all with the electric cabinet module electricity is connected, and during the test, the examination microphone that awaits measuring is placed on the support plate module, test component one with test component two is right simultaneously the examination microphone that awaits measuring tests.

Furthermore, the lower pressing module comprises an upper air cylinder and a lower air cylinder which are arranged on the electric cabinet module, the output ends of the upper air cylinder and the lower air cylinder are provided with lower pressing plates, and the first testing assembly is arranged on the lower pressing plates.

Furthermore, the first testing component comprises a combined plate matched with the lower pressing plate, a first microphone is arranged below and inside the combined plate, a through hole is formed in one end of the combined plate and matched with the first microphone, a first loudspeaker is arranged on the through hole and matched with the first microphone, a first pressing block is further arranged on the combined plate, and the first pressing block is sleeved on the first loudspeaker.

Furthermore, the support plate module comprises a slide rail arranged on the electric cabinet module and a bearing plate arranged on the slide rail in a sliding manner, one end of the bearing plate is provided with a connecting plate matched with the picking and placing window of the sound insulation box, and the second testing assembly is arranged on the bearing plate.

Further, the second testing component comprises an upper support plate arranged on the bearing plate, a vertical hole matched with the through hole is formed in one end of the upper support plate, a second microphone matched with the vertical hole is arranged in the upper support plate, a second loudspeaker matched with the second microphone is arranged at the lower end of the vertical hole, a second pressing block is further arranged at the lower end of the upper support plate, and the second loudspeaker is sleeved with the second pressing block.

Further, a groove is formed in the upper support plate, a product bearing plate is arranged in the groove and matched with the vertical hole, a sealing silica gel pad matched with the through hole is arranged at the lower end of the combined plate, and the sealing silica gel pad is matched with the groove.

Further, the support plate module is still including setting up business turn over cylinder on the electric cabinet module, the output of business turn over cylinder with the connecting plate is fixed continuous, the slide rail sets up on the business turn over cylinder, slide on the slide rail be provided with the slider of slide rail looks adaptation, the slider with it is fixed continuous to upload the board.

Furthermore, the number of the slide rails is two, the slide rails are respectively arranged at the left end and the right end of the in-out air cylinder, and the number of the slide blocks is two, and the slide blocks are respectively arranged on the corresponding slide rails.

Furthermore, one end of the lower pressing plate is provided with a square groove, and the first testing assembly is matched with the square groove.

Further, the in-out cylinder, the up-down cylinder, the first loudspeaker, the second loudspeaker, the first microphone and the second microphone are all electrically connected with the electric cabinet module.

The utility model has the advantages that: because the utility model discloses structurally including the electric cabinet module, be provided with the sound-proof box on the electric cabinet module and be in the module, the support plate module push down in the sound-proof box, the module setting is in push down on the electric cabinet module, the support plate module sets up push down the module with between the electric cabinet module, be provided with test component one on the module, be provided with on the support plate module with test component one matched with test component two, push down the module the support plate module test component one with test component two all with the electric cabinet module electricity is connected, and during the test, the examination microphone that awaits measuring is placed on the support plate module, test component one with test component two is right simultaneously the examination microphone is tested. Compared with the closest prior art, the utility model has the following advantages: the whole structure is simple and compact; the testing device comprises a testing component I, a testing component II and a testing component II, wherein the testing component I and the testing component II are positioned on different planes; two testing mechanisms do not need to be arranged to test different surfaces of one microphone, so that the testing efficiency is high, and the economic benefit is good.

Drawings

FIG. 1 is a schematic view of the three-dimensional structure of the present invention partially cut away;

FIG. 2 is an enlarged view of A in FIG. 1;

fig. 3 is a schematic cross-sectional view of a three-dimensional structure of a first testing assembly of the present invention;

FIG. 4 is an enlarged view of B of FIG. 1;

FIG. 5 is a schematic cross-sectional view of a three-dimensional structure of a second testing assembly of the present invention;

FIG. 6 is an enlarged view of C in FIG. 5;

fig. 7 is a schematic cross-sectional view of the three-dimensional structure of the press module and the carrier module of the present invention when they are assembled;

fig. 8 is a schematic perspective view of the present invention.

Detailed Description

As shown in fig. 1 to 8, in the present embodiment, the utility model comprises an electric cabinet module 1, a sound insulation box 2, a press-down module 3 and a carrier plate module 4 are arranged on the electric cabinet module 1, the press-down module 3 and the carrier plate module 4 are arranged in the sound insulation box 2, the press-down module 3 is arranged on the electric cabinet module 1, the carrier plate module 4 is arranged between the press-down module 3 and the electric cabinet module 1, the lower press module 3 is provided with a first testing component 5, the carrier plate module 4 is provided with a second testing component 6 matched with the first testing component 5, the press module 3, the carrier module 4, the first testing component 5 and the second testing component 6 are all electrically connected with the electric cabinet module 1, during testing, a microphone to be tested is placed on the carrier module 4, the first testing component 5 and the second testing component 6 simultaneously test the microphones to be tested. The electric cabinet module 1 is used for electrically connecting each module and the test assembly and carrying out unified control on the modules, and monitoring the whole test work process; the sound insulation box 2 is used for isolating an external sound source, so that a good test environment is kept in the box body, and the sound insulation box is not interfered by other sounds in the test process; the lower pressing module 3 and the carrier board module 4 are both positioned in the sound insulation box 2, and the carrier board module 4 is positioned between the lower pressing module 3 and the electric cabinet module 1 and is matched with the lower pressing module 3, so that the testing surfaces of the testing component I5 and the testing component II 6 are different when the microphone to be tested is tested, and the testing effect of simultaneously testing different surfaces of the microphone to be tested is realized; therefore, the whole structure is simple and compact; the testing of microphones on different surfaces is realized, and the testing stability is good; the testing efficiency is high, and the economic benefit is good.

In this embodiment, the pressing module 3 includes an upper and lower cylinder 31 disposed on the electric cabinet module 1, an output end of the upper and lower cylinder 31 is provided with a pressing plate 32, and the first testing component 5 is disposed on the pressing plate 32. The upper and lower air cylinders 31 drive the lower pressing plate 32 to move up and down, the testing assembly I5 moves along with the movement of the lower pressing plate 31, and the upper and lower air cylinders 31 move under the control of the electric cabinet module 1 during testing, so that the automatic testing effect is achieved.

In this embodiment, the first testing component 5 includes a combination board 51 matched with the lower pressing plate 32, the combination board 51 is located below the lower pressing plate 32 and is internally provided with a first microphone 52, one end of the combination board 51 is provided with a through hole 53, the through hole 53 is matched with the first microphone 52, the through hole 53 is provided with a first loudspeaker 54, the first loudspeaker 54 is matched with the first microphone 52, the combination board 51 is further provided with a first pressing block 55, and the first pressing block 55 is sleeved on the first loudspeaker 54. The combined plate 51 is arranged on the lower end face of the lower pressing plate 32, the first microphone 52 is arranged inside the combined plate 51 (the center of the combined plate 51 is provided with an installation long hole), the through hole 53 is used as a sound cavity, the first microphone 52 is matched with the through hole 53, the first loudspeaker 54 is arranged at the upper end of the through hole 53, the sound production end of the first loudspeaker faces downwards, the first pressing block 55 is used as a sealing block and an installation block, the upper end of the through hole 53 is sealed, the influence of an external sound source is reduced, and the lower end of the through hole 53 can carry out one-face test on the microphone to be tested.

In this embodiment, the carrier board module 4 includes a slide rail 41 disposed on the electric cabinet module 1 and a carrier board 42 slidably disposed on the slide rail 41, a connection board 43 adapted to the pick-and-place window of the soundproof box 2 is disposed at one end of the carrier board 42, and the second testing component 6 is disposed on the carrier board 42. The slide rail 41 is matched with the bearing plate 42, so that the bearing plate 42 can be arranged on the electric cabinet module 1 in a sliding manner, the sound insulation box 2 is provided with a pick-and-place window for picking and placing a microphone to be tested, and the connecting plate 43 is matched with the pick-and-place window and matched with the sound insulation box 2 to form a whole body to realize the sound insulation effect; the second testing component 6 is disposed on the bearing plate 42, and the bearing plate 42 can be taken out and the microphone to be tested can be taken and placed through the connecting plate 43 during testing.

In this embodiment, the second test component 6 includes setting up the upper carrier plate 61 on the loading plate 42, the one end of the upper carrier plate 61 be provided with the vertical hole 62 of through-hole 53 looks adaptation, the inside of the upper carrier plate 61 be provided with vertical hole 62 matched with two microphones 63, the lower extreme of vertical hole 62 be provided with two microphones 63 matched with two horns 64, the lower extreme of the upper carrier plate 61 still is provided with two briquetting 65, two briquetting 65 cover is established on two horns 64. The second microphone 63 is arranged inside the upper carrier plate 61 (the center of the upper carrier plate 61 is provided with an installation long hole), the vertical hole 62 is used as a sound cavity, the second microphone 63 is matched with the vertical hole 62, the second loudspeaker 64 is arranged at the lower end of the vertical hole 62, the sound production end of the vertical hole faces upwards, the second pressing block 65 is used as a sealing block and an installation block, the lower end of the vertical hole 62 is sealed, the influence of an external sound source is reduced, and the lower end of the vertical hole 62 can be used for testing the other surface of the microphone to be tested.

The through hole 53 is matched with the vertical hole 62, the two surfaces with the test microphone are respectively matched with the through hole 53 and the vertical hole 62, and two different surfaces are tested simultaneously during testing, so that the tests of different surfaces are realized.

In this embodiment, a groove 66 is formed in the upper carrier plate 61, a product bearing plate 67 is disposed in the groove 66, the product bearing plate 67 is matched with the vertical hole 62, a sealing silica gel pad 56 matched with the through hole 53 is disposed at the lower end of the combination plate 51, and the sealing silica gel pad 56 is matched with the groove 66. The product bearing plate 67 is provided with a placing groove matched with the microphone to be tested, so that the microphone to be tested can be placed on the upper bearing plate 61 more easily; the sealing silica gel pad 56 with the position that the through-hole 53 counterpointed is equipped with the opening, can not obstruct the through-hole 53 with erect the cooperation of hole 63, simultaneously, sealing silica gel pad 56 can make the through-hole 53 with erect hole 62 and form confined sound chamber, guarantee that sound can be complete, clearly transmit when the test to gain the best test effect.

In this embodiment, the carrier module 4 further includes an in-out cylinder 44 disposed on the electric cabinet module 1, an output end of the in-out cylinder 44 is fixedly connected to the connecting plate 43, the slide rail 41 is disposed on the in-out cylinder 44, a slide block 45 adapted to the slide rail 41 is slidably disposed on the slide rail 41, and the slide block 45 is fixedly connected to the upper carrier 61. The in-out cylinder 44 is fixedly connected with the connecting plate 43, so that the upper carrier plate 61 fixedly connected with the connecting plate 43 is controlled by the in-out cylinder 44, and an automatic in-out effect is realized; the slide block 45 is arranged to be matched with the slide rail 41, so that the upper carrier plate 61 can obtain a better sliding effect.

In this embodiment, the number of the slide rails 41 is two and the two slide rails are respectively disposed at the left and right ends of the in-out cylinder 44, and the number of the slide blocks 45 is two and the two slide rails are respectively disposed on the corresponding slide rails 41. The number of the slide rails 41 and the slide blocks 45 is two and the slide rails are distributed on two sides of the in-out cylinder 44, so that the pressure distribution of the bearing plate 42 is more uniform, and the sliding effect is better.

In this embodiment, a square groove 33 is formed at one end of the lower pressing plate 32, and the first testing component 5 is matched with the square groove 33. The square groove 33 is provided to form a space, so that the test assembly 5 is not interfered during installation, and elements in the test assembly 5 are convenient to disassemble and assemble when needing to be replaced, thereby being beneficial to maintenance.

In this embodiment, the in-and-out cylinder 44, the up-and-down cylinder 31, the first horn 54, the second horn 64, the first microphone 52, and the second microphone 63 are all electrically connected to the electric cabinet module 1. Through the form of electric connection, the electric cabinet module 1 can integrate all the parts, control the parts and sequentially realize test control; and a sound card and other sound processing parts are arranged in the electric cabinet module 1 and used for carrying out various voice tests on test sound so as to obtain a test result.

Claims

1. The utility model provides a microphone testing arrangement, includes electric cabinet module (1), its characterized in that: the electric cabinet module (1) is provided with a sound insulation box (2), a press-down module (3) and a support plate module (4) which are arranged in the sound insulation box (2), the press-down module (3) is arranged on the electric cabinet module (1), the carrier plate module (4) is arranged between the press-down module (3) and the electric cabinet module (1), a first testing component (5) is arranged on the pressing module (3), a second testing component (6) matched with the first testing component (5) is arranged on the carrier plate module (4), the press-down module (3), the carrier plate module (4), the first testing component (5) and the second testing component (6) are all electrically connected with the electric cabinet module (1), during testing, a microphone to be tested is placed on the carrier plate module (4), the first testing component (5) and the second testing component (6) test the microphones to be tested simultaneously.

2. The microphone testing device according to claim 1, wherein: the pressing module (3) comprises an upper air cylinder (31) and a lower air cylinder (31) which are arranged on the electric cabinet module (1), the output end of the upper air cylinder (31) and the lower air cylinder (31) is provided with a pressing plate (32), and the first testing assembly (5) is arranged on the pressing plate (32).

3. The microphone testing device according to claim 2, wherein: the testing component I (5) comprises a combined plate (51) matched with the lower pressing plate (32), the combined plate (51) is located below the lower pressing plate (32) and is internally provided with a first microphone (52), one end of the combined plate (51) is provided with a through hole (53), the through hole (53) is matched with the first microphone (52), a first loudspeaker (54) is arranged on the through hole (53), the first loudspeaker (54) is matched with the first microphone (52), a first pressing block (55) is further arranged on the combined plate (51), and the first pressing block (55) is sleeved on the first loudspeaker (54).

4. A microphone testing device according to claim 3, characterized in that: the test assembly is characterized in that the carrier plate module (4) comprises a sliding rail (41) arranged on the electric cabinet module (1) and a bearing plate (42) arranged on the sliding rail (41) in a sliding mode, one end of the bearing plate (42) is provided with a connecting plate (43) matched with a taking and placing window of the soundproof box (2), and the test assembly II (6) is arranged on the bearing plate (42).

5. The microphone testing device according to claim 4, wherein: the test component II (6) is arranged on the bearing plate (42) in an upper bearing plate (61), one end of the upper bearing plate (61) is provided with a vertical hole (62) matched with the through hole (53), the inside of the upper bearing plate (61) is provided with a microphone II (63) matched with the vertical hole (62), the lower end of the vertical hole (62) is provided with a horn II (64) matched with the microphone II (63), the lower end of the upper bearing plate (61) is also provided with a pressing block II (65), and the pressing block II (65) is sleeved on the horn II (64).

6. The microphone testing device according to claim 5, wherein: the upper support plate (61) is provided with a groove (66), a product bearing plate (67) is arranged in the groove (66), the product bearing plate (67) is matched with the vertical hole (62), the lower end of the combined plate (51) is provided with a sealing silica gel pad (56) matched with the through hole (53), and the sealing silica gel pad (56) is matched with the groove (66).

7. The microphone testing device according to claim 6, wherein: support plate module (4) are still including setting up business turn over cylinder (44) on electric cabinet module (1), the output of business turn over cylinder (44) with connecting plate (43) are fixed continuous, slide rail (41) set up business turn over cylinder (44) are last, slide on slide rail (41) be provided with slide rail (41) looks adaptation's slider (45), slider (45) with go up support plate (61) and fix continuous.

8. The microphone testing device according to claim 7, wherein: the number of the sliding rails (41) is two, the sliding rails are respectively arranged at the left end and the right end of the in-out air cylinder (44), and the number of the sliding blocks (45) is two, and the sliding blocks are respectively arranged on the corresponding sliding rails (41).

9. The microphone testing device according to claim 2, wherein: one end of the lower pressing plate (32) is provided with a square groove (33), and the first testing component (5) is matched with the square groove (33).

10. The microphone testing device according to claim 7, wherein: the in-out cylinder (44), the up-down cylinder (31), the first loudspeaker (54), the second loudspeaker (64), the first microphone (52) and the second microphone (63) are all electrically connected with the electric cabinet module (1).