CN220629583U

CN220629583U - Microphone sensitivity testing device

Info

Publication number: CN220629583U
Application number: CN202322309344.8U
Authority: CN
Inventors: 冯志玉; 刘召亮; 岳瑞彩; 刘莉莉
Original assignee: Weifang Aoda Electronics Co ltd
Current assignee: Weifang Aoda Electronics Co ltd
Priority date: 2023-08-25
Filing date: 2023-08-25
Publication date: 2024-03-19
Anticipated expiration: 2033-08-25

Abstract

The utility model belongs to the technical field of microphone testing, in particular to a microphone sensitivity testing device, which comprises a testing frame, a front panel, a display screen, a power switch and an adjusting knob, wherein a plurality of groups of supporting rods are arranged at the top of the testing frame, a placing plate is fixed at the top of each group of supporting rods, inserting rods are movably arranged at two sides of the placing plate, connecting pieces are fixed at the tops of the inserting rods, electric wires are connected between the connecting pieces and the testing frame, a testing joint is fixed at the top of the connecting pieces, a baffle is fixed at one side of the outer wall of the placing plate, a threaded vertical rod is welded at the top of the baffle, one end of a clamping plate is movably sleeved at the upper part of the threaded vertical rod, and one end of the threaded vertical rod and the clamping plate are locked and fixed through an upper nut and a lower nut. Aiming at the microphones with different sizes, the utility model can rapidly align and detect, has simple operation and improves the test efficiency.

Description

Microphone sensitivity testing device

Technical Field

The utility model relates to the technical field of microphone testing, in particular to a microphone sensitivity testing device.

Background

Microphone (electret microphone) has been widely used in various electronic digital products such as mp3, mp4, digital camera, telephone, microphone, etc. When engineers perform professional acoustic tests and acoustic performance certification, professional microphones are required to be used, and sensitivity values of the professional microphones are calibrated through test software and a calibrator, so that data are accurate and effective. And the microphone sensitivity testing device for acoustic testing is the main testing equipment of the microphone.

According to patent number CN202020537404.5, a miaow head sensitivity testing arrangement for acoustic test is disclosed, including frame and front panel, the front end terminal surface department of frame is provided with the front panel, the front panel is fixed through the joint at frame front end terminal surface trench all around, front panel's front end surface middle part position department passes through joint fixed connection display screen, display screen and power electric connection, the right side of display screen is provided with switch, switch passes through joint fixed connection at the front end surface of front panel, and switch can press under the effect.

The prior art has the following problems:

the existing microphone sensitivity testing device cannot be used for rapidly aligning and detecting microphones of different sizes, so that the testing efficiency is reduced, meanwhile, the existing microphone sensitivity testing device cannot be used for fixing the microphones of different sizes in the test process, and once pins of the microphones are separated from a testing connector, the accuracy of a testing result is easy to cause.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model provides a microphone sensitivity testing device, which solves the existing problems.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

the utility model provides a miaow head sensitivity testing arrangement, includes test frame, front panel, display screen, switch and adjust knob, multiunit bracing piece is installed at test frame's top, every group the top of bracing piece all is fixed with places the board, the both sides of placing the board all activity is provided with the inserted bar, the top of inserted bar all is fixed with the connection piece, be connected with the electric wire between connection piece and the test frame, the top of connection piece is fixed with test joint, the outer wall one side of placing the board is fixed with the baffle, the top welding of baffle has the screw thread montant, the one end of grip block has been cup jointed in the upper portion activity of screw thread montant, screw thread montant and the one end of grip block are fixed through last nut and lower nut locking.

As an optimized technical scheme of the utility model, the upper nut and the lower nut are respectively arranged at the top and the bottom of one end of the clamping plate, which is close to the threaded vertical rod, the upper nut and the lower nut are both in threaded connection with the threaded vertical rod, and the bottom of the clamping plate is adhered with the clamping pad.

As a preferable technical scheme of the utility model, the placing plate is provided with the mounting groove, the inner wall of the mounting groove is rotationally connected with the bidirectional screw, two sides of the bidirectional screw are respectively connected with the positioning sleeve in a threaded manner, the lower part of the inserted link is fixedly arranged with the side surface of the positioning sleeve, and one end of the bidirectional screw penetrates through the through hole on the placing plate and is welded with the driving handle.

As a preferable technical scheme of the utility model, a rectangular adjusting opening is arranged at the top of the mounting groove, the upper part of the inserted link penetrates through the adjusting opening and is connected with the connecting sheet, a sliding rail is fixed on the inner bottom wall of the mounting groove, two groups of sliding sleeves are fixedly matched with the sliding ends of the sliding rail, and the tops of the two groups of sliding sleeves are fixedly assembled with the bottoms of the two groups of positioning sleeves respectively.

As a preferable technical scheme of the utility model, the microphone is clamped between the two groups of test joints and the clamping pad, and the pins of the microphone are closely contacted with the two groups of test joints.

As a preferable technical scheme of the utility model, the two groups of connecting pieces and the inserting rods are symmetrically arranged on two sides of the bidirectional screw rod.

As a preferable technical scheme of the utility model, the front panel is clamped and arranged at the front end face of the testing frame, a display screen is fixed at the middle position of the front end outer surface of the front panel through clamping and is electrically connected with a power supply, a power switch is arranged on the right side of the display screen, and an adjusting knob is fixedly connected below the power switch on the front end outer surface of the front panel through clamping and connecting.

Compared with the prior art, the utility model provides a microphone sensitivity testing device, which has the following beneficial effects:

1. according to the microphone sensitivity testing device, the heights of the clamping plates are conveniently adjusted by the two groups of testing connectors, the upper nuts and the lower nuts, the microphone is conveniently fixed during testing by the clamping plates, the clamping pads and the two groups of testing connectors, the stability of the microphone during sensitivity testing is improved, meanwhile, the two groups of testing connectors are in close contact with the pins of the microphone, the sensitivity of the microphone is conveniently tested, and the testing effect is improved;

2. this miaow head sensitivity testing arrangement through being provided with actuating handle, bi-directional screw, two sets of locating sleeve, connection piece and test joint, and the interval that two sets of test joints was adjusted, conveniently contacts two sets of test joints and two sets of pins on the miaow head to fix and test the miaow head of equidimension not, make the application range of miaow head sensitivity testing arrangement bigger, to the miaow head of equidimension not, can aim at the detection fast, easy operation has improved test efficiency.

Drawings

FIG. 1 is a schematic view of the overall cross-sectional structure of the present utility model;

FIG. 2 is a schematic diagram of the whole front view structure of the present utility model

FIG. 3 is a schematic view of a partial enlarged structure at A in FIG. 1;

fig. 4 is a schematic top view of a part of the structure in the present utility model.

In the figure: 1. a test frame; 2. a front panel; 3. a microphone; 4. a display screen; 5. a power switch; 6. an adjustment knob; 7. a support rod; 8. placing a plate; 9. a baffle; 10. an electric wire; 11. a threaded vertical rod; 12. a clamping plate; 13. a top nut; 14. a lower nut; 15. a drive handle; 16. a bidirectional screw; 17. a positioning sleeve; 18. a connecting sheet; 19. the joint was tested.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1 to 4, in the present embodiment: the utility model provides a miaow head sensitivity testing arrangement, including test frame 1, front panel 2, display screen 4, switch 5 and adjust knob 6, multiunit bracing piece 7 is installed at test frame 1's top, every group bracing piece 7's top all is fixed with places board 8, place board 8's both sides all activity and be provided with the inserted bar, the top of inserted bar all is fixed with connection piece 18, be connected with electric wire 10 between connection piece 18 and the test frame 1, connection piece 18's top is fixed with test joint 19, place board 8's outer wall one side is fixed with baffle 9, the top welding of baffle 9 has screw thread montant 11, the one end of grip block 12 has been cup jointed in screw thread montant 11's upper portion activity, screw thread montant 11 and the one end of grip block 12 pass through upper nut 13 and lower nut 14 locking fixedly.

In this embodiment, the upper nut 13 and the lower nut 14 are respectively disposed at the top and bottom of one end of the clamping plate 12, which is close to the threaded vertical rod 11, for limiting and fixing the clamping plate 12, the upper nut 13 and the lower nut 14 are both in threaded connection with the threaded vertical rod 11, and the upper nut 13 and the lower nut 14 are loosened manually, so that the clamping plate 12 moves up and down, the height of the clamping plate 12 is convenient to adjust, the bottom of the clamping plate 12 is adhered with a clamping pad for clamping the microphone 3, the clamping pad is made of rubber material, so that the slip of the microphone 3 can be effectively prevented while clamping, and the stability during clamping is improved; the placing plate 8 is provided with a mounting groove for mounting the bidirectional screw 16, the two groups of positioning sleeves 17, the two groups of inserting rods, the sliding rail and the two groups of sliding sleeves; the inner wall of the mounting groove is rotationally connected with a bidirectional screw 16, the rotation of the bidirectional screw 16 is used for adjusting the distance between two groups of positioning sleeves 17, two sides of the bidirectional screw 16 are respectively in threaded connection with the positioning sleeves 17, the lower part of each inserting rod is fixedly arranged with the side surface of each positioning sleeve 17, and each positioning sleeve 17 is used for driving the two groups of inserting rods to horizontally move while horizontally moving; one end of the bidirectional screw 16 penetrates through a through hole on the placement plate 8, and the through hole is used for connecting the bidirectional screw 16 with the driving handle 15; a driving handle 15 is welded, and the driving handle 15 is used for driving the bidirectional screw 16 to rotate; the top of the mounting groove is provided with a rectangular adjusting opening, and when the two groups of positioning sleeves 17 drive the lower ends of the inserted bars to move under the action of the two groups of positioning sleeves, the upper ends of the inserted bars can horizontally move through the rectangular adjusting opening; the upper part of the inserted link penetrates through the adjusting port to be connected with the connecting piece 18, the connecting piece 18 can be made of copper materials, so that the conductivity of the connecting piece 18 is better, and leads or pins of the microphone 3 can be connected with input signal wires of sensitivity test elements in the test frame 1 in an electric signal manner through two groups of test connectors 19, the connecting piece 18 and the electric wires 10, thereby facilitating the test; the inner bottom wall of the mounting groove is fixedly provided with a sliding rail, the sliding ends of the sliding rail are fixedly matched with two groups of sliding sleeves, and the sliding rail is used for sliding the sliding sleeves; the top parts of the two groups of sliding sleeves are respectively and fixedly assembled with the bottoms of the two groups of positioning sleeves 17, and the two groups of sliding sleeves horizontally slide on the sliding rails to respectively drive the two groups of positioning sleeves 17 to horizontally move so that the two groups of positioning sleeves 17 can horizontally move; the microphone 3 is clamped between the two groups of test joints 19 and the clamping pads, pins of the microphone 3 are in close contact with the two groups of test joints 19 to be matched with the clamping pads, so that the microphone 3 can be clamped and fixed before the test, and the pins on the microphone 3 are prevented from being separated from the test joints 19; the two groups of connecting pieces 18 and the inserted bars are symmetrically arranged on two sides of the bidirectional screw 16, so that the moving distance of the two groups of inserted bars is ensured to be opposite, and the test connector 19 is conveniently aligned with the pin 3 of the microphone; the front panel 2 joint sets up in the front end terminal surface department of test frame 1, front end surface middle part department of front panel 2 is fixed with display screen 4 through the joint, front lower part of front panel 2 is equipped with two sets of test pen insertion mouths, display screen 4 and power electric connection, the right side of display screen 4 is provided with switch 5, switch 5's below is being located front panel 2 front end surface and is through joint fixed connection adjust knob 6, start up equipment through pressing switch 5, after the start up, when carrying out the test, insert corresponding test pen in the socket department, rotatory adjust knob 6, the test is under the change condition of miaow head sensitivity under different voltages and electric currents, and corresponding change parameter accessible is set up the display screen 4 at front panel 2 and observe, record the parameter after observing, be convenient for later stage reference use.

The working principle and the using flow of the utility model are as follows: when the microphone is used, firstly, the microphone is placed at the top of the two groups of test joints 19, the upper nut 13 and the lower nut 14 are loosened, after the clamping plate 12 is adjusted to a proper height, the upper nut 13 and the lower nut 14 are screwed, the microphone is fixed by using the clamping pad on the clamping plate 12 and the two groups of test joints 19, at the moment, the two groups of test joints 19 are tightly contacted with the pins of the microphone 3, the leads or pins of the microphone 3 are electrically connected with the input signal wires of the sensitivity test elements in the test frame 1 through the two groups of test joints 19, the connecting piece 18 and the electric wire 10, the sensitivity, faults, noise and the like of the microphone are conveniently tested, before the microphone is tested, the driving handle 15 is manually rotated, the driving handle 15 drives the bidirectional screw 16 to drive the two groups of positioning sleeves 17, the connecting piece 18 and the test joints 19 to horizontally move, so that the distance between the two groups of test joints 19 can be adjusted, and the two groups of test joints 19 are conveniently contacted with the two groups of pins on the microphone 3, so that the microphone with different sizes can be suitably fixed and tested.

Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present utility model, and the present utility model is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present utility model has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. The utility model provides a miaow head sensitivity testing arrangement, includes test frame (1), front panel (2), display screen (4), switch (5) and adjust knob (6), its characterized in that: the testing frame is characterized in that the tops of the testing frames (1) are provided with a plurality of groups of supporting rods (7), each group of supporting rods (7) is fixedly provided with a placing plate (8), two sides of each placing plate (8) are movably provided with inserting rods, the tops of the inserting rods are fixedly provided with connecting pieces (18), wires (10) are connected between the connecting pieces (18) and the testing frames (1), the tops of the connecting pieces (18) are fixedly provided with testing joints (19), one side of the outer wall of each placing plate (8) is fixedly provided with a baffle (9), the tops of the baffles (9) are welded with threaded vertical rods (11), one ends of clamping plates (12) are movably sleeved on the upper portions of the threaded vertical rods (11), and one ends of the threaded vertical rods (11) and the clamping plates (12) are fixedly locked through upper nuts (13) and lower nuts (14).

2. A microphone sensitivity test apparatus according to claim 1, wherein: the upper nut (13) and the lower nut (14) are respectively arranged at the top and the bottom of one end, close to the threaded vertical rod (11), of the clamping plate (12), the upper nut (13) and the lower nut (14) are in threaded connection with the threaded vertical rod (11), and a clamping pad is adhered to the bottom of the clamping plate (12).

3. A microphone sensitivity test apparatus according to claim 1, wherein: the mounting plate is characterized in that the mounting plate (8) is provided with a mounting groove, the inner wall of the mounting groove is rotationally connected with a bidirectional screw rod (16), two sides of the bidirectional screw rod (16) are respectively in threaded connection with a positioning sleeve (17), the lower part of the inserted rod is fixedly arranged on the side face of the positioning sleeve (17), one end of the bidirectional screw rod (16) penetrates through a through hole in the mounting plate (8), and a driving handle (15) is welded.

4. A microphone sensitivity test apparatus according to claim 3, wherein: the top of mounting groove is equipped with rectangle regulation mouth, the upper portion of inserted bar runs through the regulation mouth and is connected with connection piece (18), the interior bottom wall of mounting groove is fixed with the slide rail, the sliding end fixed fit of slide rail has two sets of sliding sleeves, two sets of the top of sliding sleeve respectively with the bottom fixed assembly of two sets of locating sleeve (17).

5. A microphone sensitivity test apparatus according to claim 2, wherein: the two groups of test joints (19) and the clamping pads are clamped and provided with the microphone (3), and pins of the microphone (3) are closely contacted with the two groups of test joints (19).

6. A microphone sensitivity test apparatus according to claim 3, wherein: the two groups of connecting pieces (18) and the inserting rods are symmetrically arranged on two sides of the bidirectional screw rod (16).

7. A microphone sensitivity test apparatus according to claim 1, wherein: front panel (2) joint sets up the front end terminal surface department of test frame (1), front end surface middle part position department of front panel (2) is fixed with display screen (4) through the joint, display screen (4) and power electric connection, the right side of display screen (4) is provided with switch (5), switch (5)'s below is being located front end surface of front panel (2) through joint fixed connection adjust knob (6).