CN219876132U

CN219876132U - Microphone bottom noise testing device

Info

Publication number: CN219876132U
Application number: CN202321118881.8U
Authority: CN
Inventors: 宛明明; 唐钰; 唐呈; 崔玉洁
Original assignee: Hefei Shengyang Culture Media Co ltd
Current assignee: Hefei Shengyang Culture Media Co ltd
Priority date: 2023-05-11
Filing date: 2023-05-11
Publication date: 2023-10-20
Anticipated expiration: 2033-05-11

Abstract

The utility model relates to the technical field of microphone function detection and discloses a microphone bottom noise testing device, which comprises a testing box, wherein an electroacoustic tester is fixedly connected to the right side of the interior of the testing box, a connecting plate is fixedly connected to the left side of the interior of the testing box, a wire harness mechanism is arranged on the upper part of the connecting plate, a connecting rod is fixedly connected to the inner wall of the left side of the testing box, a positioning mechanism is arranged at the right end of the connecting rod, a box door is rotatably connected to the left side of the front surface of the testing box, a transparent glass window is arranged on the front surface of the box door, the wire harness mechanism comprises a lower shell, an upper shell, two first sponges and two magnets, the lower shell is fixedly connected to the upper part of the connecting plate, and the upper shell is rotatably connected to the lower shell; when the microphone and the connecting wire are used, the microphone and the connecting wire are limited and fixed, so that noise is not easy to generate when the microphone and the connecting wire are tested, and the accuracy of a microphone bottom noise test result is ensured.

Description

Microphone bottom noise testing device

Technical Field

The utility model relates to the technical field of microphone function detection, in particular to a microphone bottom noise testing device.

Background

The microphone is also called as a microphone, and is an energy conversion device for converting sound signals into electric signals, and the microphone needs to detect various performances such as tone quality, tone color, stability and the like after production and assembly are completed. Background noise, the "background noise", is generally any interference noise that is independent of the presence of an input signal.

The Chinese patent publication No. CN216565603U discloses a microphone noise floor testing device, which comprises: the workbench is provided with a sound insulation box; the test box is arranged in the sound insulation box and used for placing a microphone, the test box is set in a suspending mode, and a connecting line is arranged between the test box and the top wall of the sound insulation box; the connecting wire is arranged to be cotton thread, the sound insulation sleeve is wrapped on the outer side of the connecting wire, the opening and closing door for placing the microphone is arranged on the test box, and sound absorbing cotton is arranged on the inner side of the opening and closing door. The testing device provided by the utility model has the advantages of simple structure, convenience in use, capability of well reducing the influence of external noise and improvement of testing precision.

Aiming at the related technology, when the dialogue tube is subjected to the noise floor test, the microphone is directly placed in the test box, and then the test is performed by connecting a wire with a noise floor test instrument. However, limiting measures for the microphone and the connecting wires are lacking, so that friction is generated between the microphone and the inner wall of the test box once the microphone shakes and the connecting wires are pulled, and the test effect of the microphone is affected by noise. Accordingly, a microphone noise floor testing device is provided by those skilled in the art to solve the above-mentioned problems.

Disclosure of Invention

In order to solve the problem that the microphone shakes and pulls the connecting wire to influence the bottom noise test result of the microphone, the utility model provides a microphone bottom noise test device.

The utility model provides a microphone bottom noise testing device which adopts the following technical scheme: the utility model provides a microphone bottom noise testing arrangement, includes the test box, the inside right side fixedly connected with electroacoustic tester of test box, the inside left side fixedly connected with connecting plate of test box, the upper portion of connecting plate is provided with the wire binding mechanism, fixedly connected with connecting rod on the left side inner wall of test box, the right-hand member of connecting rod is provided with positioning mechanism, the front left side of test box rotates and is connected with the chamber door, just transparent glass window is installed to the front of chamber door.

Preferably, the wire binding mechanism comprises a lower shell, an upper shell, two first sponges and two magnets, wherein the lower shell is fixedly connected to the upper portion of the connecting plate, the upper shell is rotationally connected to the lower shell, the two first sponges are respectively connected to the inner sides of the lower shell and the upper shell, the two magnets are respectively fixedly connected to the front sides of the lower shell and the upper shell, and the two magnets are opposite magnets.

Preferably, the positioning mechanism comprises a positioning sleeve and a second sponge, wherein the positioning sleeve is fixedly connected to the right end of the connecting rod, and the second sponge is connected to the inner side of the positioning sleeve.

Preferably, a sound insulation layer is arranged on the inner side of the test box, and a sound absorption layer is arranged on the inner side of the sound insulation layer.

Preferably, the bottom fixedly connected with a plurality of supporting legs of test box, four the supporting legs is the rectangle and distributes, just the bottom of supporting legs is provided with the rubber pad.

Compared with the prior art, the utility model has the beneficial effects that:

1. the utility model is provided with the connecting plate, the wire-binding mechanism, the connecting rod and the positioning mechanism, when the dialogue tube is subjected to the noise test, the microphone can be directly placed on the inner side of the positioning sleeve, so that the microphone is not easy to shake during the test, and then the wire-binding mechanism can wrap the connecting wire, so that the microphone and the connecting wire can not generate noise to influence the test effect;

2. the utility model also provides the sound insulation layer and the sound absorption layer, the influence of external noise during the microphone bottom noise test can be reduced through the sound insulation layer and the sound absorption layer, and meanwhile, the sound insulation layer is adopted to replace vacuum sound insulation, so that the problem of complex structure of the device caused by vacuumizing is avoided, and the operation is more convenient.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic view of the structure of the door of the present utility model when the door is opened;

fig. 3 is a schematic structural view of a wire harness mechanism in the present utility model.

Reference numerals illustrate: 1. a test box; 2. electroacoustic tester; 3. a connecting plate; 4. a wire harness mechanism; 401. a lower housing; 402. an upper housing; 403. a first sponge; 404. a magnet; 5. a connecting rod; 6. a positioning mechanism; 601. a positioning sleeve; 602. a second sponge; 7. a door; 8. a transparent glazing; 9. a sound insulation layer; 10. a sound absorbing layer; 11. supporting feet; 12. and a rubber pad.

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.

The embodiment of the utility model discloses a microphone bottom noise testing device. Referring to fig. 1-3, a microphone noise testing device comprises a testing box 1, wherein an electroacoustic tester 2 is fixedly connected to the right side inside the testing box 1, a connecting plate 3 is fixedly connected to the left side inside the testing box 1, a wire harness mechanism 4 is arranged on the upper portion of the connecting plate 3, a connecting rod 5 is fixedly connected to the inner wall of the left side of the testing box 1, a positioning mechanism 6 is arranged at the right end of the connecting rod 5, a box door 7 is rotatably connected to the left side of the front of the testing box 1, and a transparent glass window 8 is arranged on the front of the box door 7;

referring to fig. 3, the wire harness mechanism 4 includes a lower housing 401, an upper housing 402, two first sponges 403, two magnets 404, the lower housing 401 is fixedly connected to the upper portion of the connection board 3, the upper housing 402 is rotatably connected to the lower housing 401, the two first sponges 403 are respectively connected to the inner sides of the lower housing 401 and the upper housing 402, the two magnets 404 are respectively fixedly connected to the front sides of the lower housing 401 and the upper housing 402, and the two magnets 404 are different magnets from each other, and the connection wire on the microphone can be limited through the wire harness mechanism 4, so that noise is not easily generated by friction of the connection wire, and accuracy of a bottom noise test result is ensured.

Referring to fig. 2, positioning mechanism 6 includes spacer 601 and second sponge 602, and spacer 601 fixed connection is in the right-hand member of connecting rod 5 at the spacer 601, and the inboard at spacer 601 is connected to second sponge 602, can carry out spacing fixedly through positioning mechanism 6 to the conversation tube for the microphone is difficult for rocking when the noise testing at the bottom produces the noise, has further guaranteed the accuracy of noise testing result at the bottom.

Referring to fig. 2, a sound insulation layer 9 is disposed on the inner side of the test box 1, a sound absorption layer 10 is disposed on the inner side of the sound insulation layer 9, and the influence of external noise during a microphone bottom noise test can be reduced through the sound insulation layer 9 and the sound absorption layer 10.

Referring to fig. 1 and 2, the bottom of the test box 1 is fixedly connected with a plurality of supporting feet 11, four supporting feet 11 are rectangular in distribution, and rubber pads 12 are arranged at the bottoms of the supporting feet 11.

Working principle: when the electroacoustic tester is used, the electrical components are externally connected with a power supply and a control switch when the electroacoustic tester is used, when the conversation tube is used for a noise test, the microphone is firstly inserted into the inner side of the positioning sleeve 601, so that the microphone is not easy to shake to generate noise during the test, then the upper shell 402 on the lower shell 401 is rotated, so that the connecting wire on the microphone is placed on the upper part of the lower shell 401, one end of the connecting wire, which is far away from the microphone, is connected with the connector of the electroacoustic tester 2, then the upper shell 402 can be rotated to an initial position, at the moment, the two magnets 404 are mutually attached and adsorbed, the connecting wire can be limited, and therefore, the connecting wire cannot be rubbed to generate noise during the test, and further the test effect is ensured, and a worker can check the test result on the electroacoustic tester 2 through the transparent glass window 8.

When the microphone and the connecting wire are used, the microphone and the connecting wire are limited and fixed, so that noise is not easy to generate when the microphone and the connecting wire are tested, and the accuracy of a microphone bottom noise test result is ensured.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a microphone noise floor testing arrangement, includes test box (1), its characterized in that: the electroacoustic test device is characterized in that an electroacoustic tester (2) is fixedly connected to the right side of the inside of the test box (1), a connecting plate (3) is fixedly connected to the left side of the inside of the test box (1), a wire binding mechanism (4) is arranged on the upper portion of the connecting plate (3), a connecting rod (5) is fixedly connected to the inner wall of the left side of the test box (1), a positioning mechanism (6) is arranged at the right end of the connecting rod (5), a box door (7) is connected to the left side of the front of the test box (1) in a rotating mode, and a transparent glass window (8) is arranged on the front of the box door (7).

2. The microphone noise floor test device according to claim 1, wherein: the wire harness mechanism (4) comprises a lower shell (401), an upper shell (402), two first sponges (403) and two magnets (404), wherein the lower shell (401) is fixedly connected to the upper portion of the connecting plate (3), the upper shell (402) is rotationally connected to the lower shell (401), the two first sponges (403) are respectively connected to the inner sides of the lower shell (401) and the upper shell (402), the two magnets (404) are respectively fixedly connected to the front sides of the lower shell (401) and the upper shell (402), and the two magnets (404) are mutually different magnets.

3. The microphone noise floor test device according to claim 1, wherein: the positioning mechanism (6) comprises a positioning sleeve (601) and a second sponge (602), the positioning sleeve (601) is fixedly connected to the right end of the connecting rod (5), and the second sponge (602) is connected to the inner side of the positioning sleeve (601).

4. The microphone noise floor test device according to claim 1, wherein: the inside of test box (1) is provided with sound insulation layer (9), the inboard of sound insulation layer (9) is provided with acoustic absorber layer (10).

5. The microphone noise floor test device according to claim 1, wherein: the bottom fixedly connected with a plurality of supporting legs (11) of test box (1), four supporting legs (11) are the rectangle and distribute, just the bottom of supporting legs (11) is provided with rubber pad (12).