CN219164701U - Sound insulation test box of pickup - Google Patents

Abstract

The utility model discloses a sound insulation test box of a sound pick-up, which mainly provides a closed sound insulation environment for the test of the sound pick-up, and the sound insulation test box can test the sound pick-up at any position, so that the test is timely, and the production efficiency is improved. The main technical scheme of the utility model is as follows: a sound insulation test box for a sound pickup, comprising: the main body comprises a closed inner cavity and is sound-proof; the test board is arranged in the closed inner cavity and connected with the box body, and test holes are formed in the test board; the airtight inner chamber is used for holding adapter and speaker, and adapter and speaker are located the both sides of test hole respectively, and the test board is used for being connected with the adapter, and the test hole is relative with the adapter hole. The utility model is mainly used for pickup test of the pickup.

Description

Sound insulation test box of pickup

Technical Field

The utility model relates to the technical field of sound pickup testing, in particular to a sound insulation testing box of a sound pickup.

Background

Microphones, or microphones, are devices for picking up and transmitting sound, which collect sound signals and convert the sound signals into electrical signals, and have been increasingly used in various electronic devices. In order to ensure that the pickup has high sound quality, in the production process of the pickup, the pickup performance, sensitivity and the like of the pickup need to be tested.

In the existing test method, a sound pick-up and a test main board are fixed on a substrate, the test main board is connected with the sound pick-up and an upper computer, and sound of a loudspeaker is emitted at a preset position to test the performance of the sound pick-up. However, the test of the performance of the pickup needs to be performed in a very quiet and stable environment, the environment of the pickup production line cannot meet the noise requirement, and the pickup needs to be moved to a special mute room for pickup test, so that the production and the test process are separated, and the problems of low test efficiency and untimely test result are caused.

Disclosure of Invention

Therefore, the embodiment of the utility model provides the sound insulation test box for the sound pick-up, which provides a closed sound insulation environment for the test of the sound pick-up, and the sound insulation test box can test the sound pick-up at any position, so that the test is timely, and the production efficiency is improved.

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

the utility model provides a sound insulation test box of pickup, the pickup includes at least one pickup hole, the sound insulation test box of pickup includes:

the main body comprises a closed inner cavity and is sound-proof;

the test board is arranged in the closed inner cavity and connected with the main body, and test holes are formed in the test board;

the airtight inner chamber is used for holding adapter and speaker, and adapter and speaker are located the both sides of test hole respectively, and the test board is used for being connected with the adapter, and the test hole is relative with the adapter hole of adapter.

The test board divides airtight inner chamber into first holding chamber and second holding chamber, and first holding chamber and second hold chamber one of them and be used for holding the adapter, and another is used for holding the speaker.

Wherein, the sound insulation test box of adapter still includes:

the mounting piece is connected with the main part, is provided with central opening on the mounting piece, and the test board is connected with the mounting piece, and the test hole is relative with central opening.

The mounting piece and the test board divide the closed inner cavity into a first accommodating cavity and a second accommodating cavity;

one of the first accommodation chamber and the second accommodation chamber is used for accommodating a pickup, and the other is used for accommodating a loudspeaker.

The sound insulation test box further comprises a movable contact pin assembly and a lifting assembly, and the lifting assembly is respectively connected with the movable contact pin assembly and the test board;

the movable contact pin assembly is used for being electrically connected with the test main board;

the movable contact pin assembly comprises a first detection position and a second detection position, wherein the movable contact pin assembly is electrically disconnected from the pickup in the first detection position, and the movable contact pin assembly is electrically connected with the pickup in the second detection position, and the lifting assembly is used for enabling the movable contact pin assembly to move between the first detection position and the second detection position.

The movable contact pin assembly comprises an upper plate and contact pins, the lifting assembly is connected with the upper plate, the contact pins are connected to the upper plate, two ends of each contact pin are located on two sides of the upper plate, a first end of each contact pin is used for being electrically connected with a test main board, a second end of each contact pin is used for being electrically connected with a pickup, and the upper plate is used for being connected with the test main board.

Wherein the main body comprises a box body and at least one opening and closing piece;

at least one opening and closing piece is movably connected with the box body, and the opening and closing piece is used for moving relative to the box body to be selectively matched with the box body to form a closed inner cavity.

Wherein the pickup comprises at least one positioning hole;

and the test board is also provided with a positioning column matched with the positioning hole, and the positioning column is used for being inserted into the positioning hole so as to limit the pickup in the horizontal direction.

The main body comprises a substrate and a sound insulation layer, the substrate is enclosed into a closed inner cavity, and the sound insulation layer covers one side of the substrate opposite to the closed inner cavity.

Wherein, sound insulation test box still includes:

the base comprises a supporting plate and a foot pad, the supporting plate is used for supporting the main body, and the foot pad is positioned on one side of the supporting plate opposite to the main body;

the base also comprises a blocking pad which is arranged between the supporting plate and the main body.

The sound insulation test box for the sound pick-up provided by the utility model provides a closed sound insulation environment for the test of the sound pick-up, and the sound insulation test box can test the sound pick-up at any position, so that the test is timely, and the production efficiency is improved. In the prior art, the noise demand when the environment of adapter production line can not satisfy the test, need move the adapter to special silence room in carry out the adapter test, lead to production and test process separation, lead to the inefficiency of test and the untimely problem of test result. Compared with the prior art, in this application file, the main part includes airtight inner chamber, provides airtight sound insulation's space for the test of adapter, and the test board sets up in airtight inner chamber, and the test sound that the speaker sent will propagate to the adapter hole of adapter through the test hole of test board on to accomplish the test, the test of adapter can be carried out in arbitrary environment to the test box that gives sound insulation of adapter, makes the test process in time.

Drawings

Fig. 1 is a schematic perspective view of a sound insulation test box of a sound pickup according to an embodiment of the present utility model at a first view angle;

fig. 2 is a schematic perspective view of a sound insulation testing box of a sound pickup according to an embodiment of the present utility model at a second view angle;

fig. 3 is a schematic structural diagram of a test board in a sound insulation test box of a sound pickup according to an embodiment of the present utility model;

fig. 4 is a schematic structural view of a box body, a side door, an upper door and a mounting member in a sound insulation test box of a sound pickup according to an embodiment of the present utility model;

fig. 5 is a schematic structural view of a box body, a side door, an upper door, a mounting member and a base in a sound insulation test box of a sound pickup according to an embodiment of the present utility model.

Detailed Description

In order to further describe the technical means and effects adopted by the utility model to achieve the preset aim, the following detailed description refers to the specific implementation, structure, characteristics and effects of the sound insulation test box for the sound pick-up according to the utility model with reference to the attached drawings and the preferred embodiment.

The utility model provides a sound insulation test box of pickup, the pickup includes at least one pickup hole, the sound insulation test box of pickup includes:

the main body (100), the main body (100) comprises a closed inner cavity, and the main body (100) is sound-proof;

the test board (200) is arranged in the closed inner cavity and is connected with the box body (110), and the test board (200) is provided with test holes (300);

the airtight inner chamber is used for holding adapter and speaker, and adapter and speaker are located the both sides of test hole (300) respectively, and test board (200) are used for being connected with the adapter, and test hole (300) are relative with the adapter hole of adapter.

The pickup is a Microphone (MIC) plate, i.e., a microphone. MIC board includes at least one pickup hole, and the MIC board is rectangular shape structure, and when the pickup hole was a plurality of, the center in pickup hole was the straight line arrangement in MIC board extending direction, and this embodiment uses the pickup to include four pickup holes as the example. The shape of the main body (100) can be various, such as a square body or a cylinder, etc. The main body (100) gives sound insulation, and main body (100) can adopt the sound insulation material preparation to get final product, or, the lateral wall of main body (100) includes base plate and puigging, and the base plate encloses into airtight inner chamber, and the puigging covers in the relative one side of airtight inner chamber of base plate to separation external noise for the white noise in the airtight space reaches the test requirement, say is less than 45db. The sound insulating layer may be a sound insulating cotton. The test board (200) is arranged in the middle area of the closed inner cavity in the height direction, so that accommodating spaces are formed above and below the test board (200). The test hole (300) is the through-hole of link up test board (200) top and below, and test hole (300) are relative with the pickup hole of adapter, and the speaker is relative with test hole (300), and the test sound that the speaker produced will be gathered by the pickup hole through test hole (300) for the better pickup of adapter. During the test, the test mainboard is connected to the adapter electricity, and the host computer is connected to the test mainboard electricity, and the sound signal that the pickup hole will gather conveys the test mainboard, conveys the host computer then and carries out signal analysis to confirm the adapter performance.

The sound insulation test box of the sound pickup can test only a single sound pickup, and can also test two sound pickup simultaneously. In one embodiment, the number of test wells (300) is eight, each set of four being arranged in a row, each set of four being opposite a pick-up well of a pick-up. Two sets of test holes (300) interval sets up, realizes carrying out the test of two pickups simultaneously, increases efficiency of software testing, avoids frequently carrying out picking up and placing of pickups. The loudspeaker can be connected to the inner wall of the main body (100) through a supporting seat and the like, and can also be directly placed in the accommodating cavity, so long as the sound source is ensured to be opposite to the test hole (300). To ensure the test effect, the height of the sound source of the speaker from the test hole (300) is 350 mm or more and 500 mm or less.

The sound insulation test box for the sound pick-up provided by the embodiment of the utility model provides a closed sound insulation environment for the test of the sound pick-up, and the sound insulation test box can test the sound pick-up at any position, so that the test is timely, and the production efficiency is improved. In the prior art, the noise requirement when the environment of adapter production line can not satisfy the test, need move the adapter to special silence room in carry out the adapter test, lead to production and test process separation to lead to the inefficiency of test and the untimely problem of test result. Compared with the prior art, in this application file, the main part includes airtight inner chamber, provides airtight sound insulation's space for the test of adapter, and the test board sets up in airtight inner chamber, and the test sound that the speaker sent will propagate to the adapter hole of adapter through the test hole of test board on to accomplish the test, the test of adapter can be carried out in arbitrary environment to the test box that gives sound insulation of adapter, makes the test process in time.

In one embodiment, the test board (200) divides the closed interior into a first housing chamber (111) and a second housing chamber (112), one of the first housing chamber (111) and the second housing chamber (112) for housing a microphone and the other for housing a speaker.

The border a week of test board (200) is connected with the inner wall of main part (100) for airtight inner chamber is cut apart into first chamber (111) and second and is held chamber (112), and first chamber (111) and second hold chamber (112) and only communicate through test hole (300), and the test sound of speaker can only propagate the pickup hole through test hole (300) promptly, makes the pickup effect better, detects more accurately.

The test board (200) may be directly connected to the inner wall of the main body (100), or indirectly connected to the inner wall of the main body (100), as shown in fig. 4, in an embodiment, the sound insulation test box of the pickup further includes a mounting member (600), the mounting member (600) is connected to the main body (100), a central opening (610) is provided on the mounting member (600), the test board (200) is connected to the mounting member (600), and the test hole (300) is opposite to the central opening (610).

The mounting member (600) may have various structures, for example, the mounting member (600) may be a supporting frame disposed in the closed cavity, or the mounting member (600) may have a plate-like structure and be fixed in a middle region of the closed cavity in the height direction. The test board (200) is connected with the main body (100) through the mounting member (600) so that the size of the test board (200) is not limited, and the test board (200) is small in size and light in weight. The test board (200) can be fixed on the outer side of the central opening (610) of the mounting piece (600) through bolts, or when the test board (200) is mounted, the test board (200) can be only placed on the mounting piece (600), the mounting piece (600) supports the test board (200), the mounting piece (600) and the test board (200) are only abutted, and the test board (200) is not required to be fixed on the mounting piece (600). The test board (200) is convenient to take, place and move, and the test board (200) is convenient to install.

In one embodiment, the mounting member (600) cooperates with the test plate (200) to divide the closed interior cavity into a first receiving cavity (111) and a second receiving cavity (112). One of the first accommodation chamber (111) and the second accommodation chamber (112) is for accommodating a sound pickup, and the other is for accommodating a speaker.

The mounting (600) is approximately the platy structure of back font, and the border a week of mounting (600) is connected with the inner wall of main part (100), and test board (200) cover is at central opening (610), makes mounting (600) and test board (200) with the inner chamber split into first holding chamber (111) and second holding chamber (112), first holding chamber (111) and second holding chamber (112) only communicate through test hole (300), makes the test sound of speaker propagate to the pick-up hole through test hole (300) only.

The first accommodation chamber (111) and the second accommodation chamber (112) may be disposed in various relative positional relationships, up and down or left and right. In one embodiment, the first accommodating chamber (111) is located above the second accommodating chamber (112), the sound pickup may be located in the first accommodating chamber (111), the speaker is located in the second accommodating chamber (112), and sound of the speaker propagates from bottom to top onto the sound pickup, or the speaker is located in the first accommodating chamber (111) and the sound pickup is located in the second accommodating chamber (112), and sound of the speaker propagates from top to bottom onto the sound pickup. For convenience of explanation, the first accommodating chamber (111) is located above the second accommodating chamber (112), and the pickup is disposed in the second accommodating chamber (112) will be exemplified.

In one embodiment, a main body (100) includes a case (110) and at least one opening and closing member (120). At least one opening and closing piece (120) is movably connected with the box body (110), and the opening and closing piece (120) is used for moving relative to the box body (110) to be selectively matched with the box body (110) to form a closed inner cavity.

The box body (110) is of a square cavity structure with an opening, the opening and closing piece (120) is movably connected with the box body (110), and the opening and closing piece (120) can be opened and closed relatively to the opening so as to selectively enclose the box body (110) into a closed inner cavity. The opening can be square opening, and the opening is the passageway of cavity and external intercommunication, when needs put into adapter in box (110), opens piece (120) that will open, put into the back with the adapter, closes piece (120) that will open and shut for piece (120) that opens and shuts are laminated with open-ended border or box (110) outer wall outside the border, in order to form airtight space. In order to facilitate the pick-up to be taken and placed, the opening may completely cover one side of the case (110).

More specifically, the opening of the case (110) includes at least one of a side opening and a top opening, and the opening and closing member (120) may include a side opening or an upper opening (123). When the opening and closing member (120) is a side-opening door, the side-opening door can further comprise a side-opening upper door (121) opposite to the first accommodating cavity (111) and a side-opening lower door (122) opposite to the second accommodating cavity (112), so that the first accommodating cavity (111) and the second accommodating cavity (112) can be independently opened. If in the test process, the first accommodating cavity (111) needs to be frequently opened to take and place the pickup, the split side opening upper door (121) and the side opening lower door (122) are arranged, the side opening upper door (121) can be independently opened, the second accommodating cavity (112) where the loudspeaker is located is closed, the problem that the loudspeaker is exposed to ash or loose in position and the side opening lower door (122) is loosened due to the fact that the side opening lower door (122) is frequently opened and closed is avoided, and effective sealing and sound insulation between the side opening lower door (122) and the box body (110) are guaranteed. In one embodiment, as shown in fig. 1-2 and fig. 4, the case (110) includes a top opening, the opening and closing member (120) includes an upper opening door (123), the upper opening door (123) is movably connected with the case (110), and the upper opening door (123) can be opened and closed relative to the top opening, so as to selectively enclose a closed inner cavity with the case (110).

It will be appreciated that hinges may be used between the upper door (123) and the housing (110), and between the side-opening upper door (121) and the side-opening lower door (122) and the housing (110). The top opening makes the operation of test board (200) more convenient, like in the embodiment of test board including movable contact pin subassembly, open through the upper door and press upper plate (210) and lift upper plate (210) that can be more convenient for test mainboard and adapter electricity are connected or are broken away from, and conveniently change different test mainboard and test board. The specific structure of the test plate (200) will be described in detail below.

In one embodiment, as shown in fig. 3, the acoustic enclosure further includes a movable stylus assembly and a lift assembly (230), the lift assembly (230) being coupled to the movable stylus assembly and the test plate (200), respectively. The movable contact pin assembly is used for being electrically connected with the test main board. The movable stylus assembly includes a first detection position in which the movable stylus assembly is electrically disconnected from the pickup and a second detection position in which the movable stylus assembly is electrically connected to the pickup, and a lift assembly (230) for moving the movable stylus assembly between the first detection position and the second detection position.

The test main board is an essential component for testing the pickup, when the pickup to be tested is replaced, the pickup after the test is required to be disconnected, namely, a flat cable of the test main board is pulled up by the pickup, the pickup to be tested is electrically connected with the test main board through the flat cable, the process is required to carry out the plugging operation of the flat cable, the operation process is tedious and time-consuming, and the frequent plugging will lead to easy damage and looseness of the flat cable. In the embodiment, the movable contact pin assembly is arranged to realize the electric connection and disconnection operation between the test main board and the pickup.

Specifically, the movable contact pin assembly comprises an upper plate (210) and contact pins (220), the lifting assembly (230) is connected with the upper plate (210), the contact pins (220) are connected to the upper plate (210), two ends of each contact pin (220) are located at two sides of the upper plate (210), a first end of each contact pin (220) is used for being electrically connected with a test main board, a second end of each contact pin (220) is used for being electrically connected with a pickup, and the upper plate (210) is used for being connected with the test main board.

The upper plate (210) and the test plate (200) are both plate-shaped structures, and the upper plate (210) and the test plate (200) are both horizontally arranged and are spaced apart by a certain distance, such as 200 mm. The pickup is provided with electrical connection points, i.e., metal contacts, which are electrically connected to the respective pickup holes, and when the pickup is fixed to the test board (200), the contact pins (220) are opposed to the electrical connection points of the pickup. The upper board (210) is opposite to the side of the test board (200) and is used for connecting the test board, and a flat cable of the test board is electrically connected with the contact pins (220) through the top ends of the contact pins (220). When the upper plate (210) is at the first detection position, the bottom end of the contact pin (220) is separated from the pickup by a certain distance, the contact pin (220) is electrically disconnected from the pickup, the upper plate (210) is adjusted to be close to the test plate (200) through the lifting assembly (230), when the upper plate (210) is at the second detection position, the bottom end of the contact pin (220) is in contact with an electrical connection point of the pickup, so that the contact pin (220) is electrically connected with the pickup, the test main plate is electrically connected with each pickup hole, pickup data of the test microphone can be detected, and pickup performance detection is performed.

In embodiments where the acoustic test pod is used for both pickup tests, the contact pins (220) are in two sets, one corresponding to each electrical connection point of the two pickups.

The lifting assembly (230) is used to raise or lower the upper plate (210), and an automatic lifting device such as an oil cylinder can be used, or an embodiment of manually adjusting the height of the upper plate (210) is provided as follows:

the upper plate (210) includes a sliding hole, and the elevating assembly (230) includes an adjusting column (231), an elastic member (232), and an elastic member (233). The bottom of adjusting post (231) is connected with test board (200), and adjusting post (231) activity cross-under is in the sliding hole, and elastic component (232) are located between upper plate (210) and test board (200), and elastic component (232) are used for exerting the elasticity that keeps away from test board (200) removal to upper plate (210). The elastic piece (233) is fixed on the test board (200), the mounting piece (600) or the box body (110), the elastic piece (233) comprises a spring head, the spring head can spring, and the spring head is used for pressing or releasing the upper board (210).

The number of the lifting assemblies (230) is four, and the four lifting assemblies (230) are respectively arranged near four corners of the upper plate (210). The adjusting column (231) is of a cylindrical structure with a top end limiting head, and the inner diameter of the sliding hole is slightly larger than the outer diameter of the adjusting column (231), so that the adjusting column (231) can slide in the sliding hole. When the external force to the upper plate (210) is removed, the upper plate (210) moves upwards and is positioned at a position abutting against the top end limiting head of the adjusting column (231) due to the elastic force of the elastic piece (232), and the position is a first detection position, and the contact pin (220) is electrically disconnected from the pickup. After the pick-up is placed, the upper plate (210) is pressed, and the upper plate (210) can be pressed through the top end opening, so that the upper plate (210) moves to interact with the elastic head of the elastic piece (233), the elastic head is pressed against the upper plate (210) in a state of being free from external force naturally, the upper plate (210) is in the second detection position, and the bottom end of the contact pin (220) is in contact with an electrical connection point of the pick-up to be electrically connected. After the pickup test is completed, the upper plate (210) is lifted up and returned to the first detection position by the elastic force of the elastic member (232) by pressing the bullet so that the bullet releases the upper plate (210). The position of the upper plate (210) is manually adjusted, the operation is simple, the structure is easy to realize, the whole equipment manufacturing cost is low, and the weight is light. In one embodiment, the elastic member (232) is a spring that is sleeved on the adjustment post (231).

In one embodiment, the elastic member (233) comprises an elastic member main body and a bullet, one end of the elastic member main body is connected to the test board (200), the other end of the elastic member main body is connected to the bullet, the first end of the bullet extends horizontally and in a direction close to the upper board (210), the first end of the bullet is located below the upper board (210), and a guiding slope (211) is arranged on the upper edge of the first end of the bullet. The elastic member body is made of an elastic material so that the first end of the bullet can be bounced.

When the upper plate (210) is pressed to move downwards, the contact guide slope (211) is contacted with the edge of the upper plate (210) and interacts with the guide slope (211) so that the first end of the bullet moves towards the direction away from the upper plate (210) and simultaneously moves towards the test plate (200), the upper plate (210) can move to a critical position lower than the bullet along the edge of the first end of the bullet, the bullet can spring back to the original position under the action of the elastic piece main body, the first end of the bullet is positioned on the upper plate (210), the pressing force on the upper plate (210) is removed, and the bullet limits the upper plate (210). When the test is completed, the warhead is pulled or pressed outwards or downwards by a second end opposite to the first end of the warhead, and the first end of the warhead moves away from the upper plate (210) and away from the test plate (200) at the same time, so that the upper plate (210) is released by the first end of the warhead. The number of the elastic pieces (233) can be two, the elastic pieces are respectively opposite to the two opposite side edges of the upper plate (210), and the elastic pieces (233) can be connected with the upper plate (210) through bolts.

In one embodiment, as shown in fig. 2-3, the pickup includes at least one locating hole. And a positioning column (400) matched with the positioning hole is further arranged on the test board, and the positioning column (400) is used for being inserted into the positioning hole so as to limit the pickup in the horizontal direction.

Set up reference column (400) and locating hole cooperation for the adapter can be convenient install on the test board, and the installation is simple, and adapter position is stable, and easy location and difficult emergence drunkenness when the adapter is put into the test board, make the pick-up hole accurate with test hole (300) relative, and guarantee in the later embodiment that includes contact pin (220), can make the electric tie point of contact pin (220) accurate correspondence adapter. The number of the positioning columns (400) can be two, and the positioning columns respectively correspond to positioning holes near the two end parts of the pickup.

In one embodiment, as shown in fig. 5, the soundproof test box further comprises a base (500), the base (500) comprises a supporting plate (510) and a foot pad (520), the supporting plate (510) is used for supporting the box body (110), and the foot pad (520) is located on one side of the supporting plate (510) opposite to the box body (110).

The support plate (510) acts to fix and support the weight of the entire case (110). The callus on sole (520) can adopt the rubber material preparation to form, and callus on sole (520) are used for buffering and giving sound insulation, can reduce the resonance and the sound of the floor that the test box that gives sound insulation are gone into airtight inner chamber, play simultaneously to support box (110) for have the space between box (110) bottom plate and the mesa, the effect of being convenient for lift of test box that gives sound insulation.

In one embodiment, as shown in fig. 5, the base (500) further includes a blocking pad (530), and the blocking pad (530) is disposed between the support plate (510) and the case (110).

The barrier pad (530) is used for buffering and sound insulation, and the barrier pad (530) may be foam or sound insulation. Further reduces the resonance of the floor where the sound insulation test box is located and the sound transmitted into the closed inner cavity.

The foregoing is merely illustrative of the present utility model, and the present utility model is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present utility model. Therefore, the protection scope of the present utility model shall be subject to the protection scope of the claims.

Claims (10)

1. Sound insulation test box of adapter, the adapter includes at least one pickup hole, its characterized in that, the sound insulation test box of adapter includes:

-a main body (100), said main body (100) comprising a closed internal cavity, said main body (100) being sound-insulating;

the test board (200), the said test board (200) is set up in the said airtight inner chamber, the said test board (200) is connected with said body (100), there are test holes (300) on the said test board (200);

the airtight inner chamber is used for holding adapter and speaker, the adapter with the speaker is located respectively the both sides of test hole (300), test board (200) be used for with the adapter is connected, just test hole (300) with the adapter hole is relative.

2. The sound insulation test box of a sound pickup according to claim 1, wherein,

the test board (200) divides the closed inner cavity into a first accommodating cavity (111) and a second accommodating cavity (112), one of the first accommodating cavity (111) and the second accommodating cavity (112) is used for accommodating the pickup, and the other is used for accommodating the loudspeaker.

3. The sound insulation testing box of a sound pickup of claim 1, further comprising:

the mounting piece (600), the mounting piece (600) with main part (100) are connected, be provided with central opening (610) on the mounting piece (600), test board (200) with the mounting piece (600) is connected, test hole (300) with central opening (610) are relative.

4. A sound insulation test box for a sound pickup according to claim 3, wherein,

the mounting piece (600) and the test board (200) jointly divide the closed inner cavity into a first accommodating cavity (111) and a second accommodating cavity (112);

one of the first accommodation chamber (111) and the second accommodation chamber (112) is for accommodating the sound pickup, and the other is for accommodating the speaker.

5. The sound insulation test box of a sound pickup according to any one of claims 1 to 4,

the sound insulation test box further comprises a movable contact pin assembly and a lifting assembly (230), wherein the lifting assembly (230) is respectively connected with the movable contact pin assembly and the test board (200);

the movable contact pin assembly is used for being electrically connected with the test main board;

the movable stylus assembly includes a first detection position in which the movable stylus assembly is electrically disconnected from the pickup and a second detection position in which the movable stylus assembly is electrically connected to the pickup, the lift assembly (230) being configured to move the movable stylus assembly between the first detection position and the second detection position.

6. The sound insulation test box of a sound pickup according to claim 5, wherein,

the movable contact pin assembly comprises an upper plate (210) and contact pins (220), the lifting assembly (230) is connected with the upper plate (210), the contact pins (220) are connected to the upper plate (210), two ends of each contact pin (220) are located on two sides of the upper plate (210), a first end of each contact pin (220) is used for being electrically connected with the test main board, a second end of each contact pin (220) is used for being electrically connected with the pickup, and the upper plate (210) is used for being connected with the test main board.

7. The sound insulation test box of a sound pickup according to any one of claims 1 to 4,

the main body (100) comprises a box body (110) and at least one opening and closing piece (120);

at least one opening and closing piece (120) is movably connected with the box body (110), and the opening and closing piece (120) is used for moving relative to the box body (110) to be selectively matched with the box body (110) to form the closed inner cavity.

8. The sound insulation test bin of any one of claims 1-4, wherein the pickup includes at least one locating hole;

the test board (200) is further provided with a positioning column (400) matched with the positioning hole, and the positioning column (400) is used for being inserted into the positioning hole so as to limit the pickup in the horizontal direction.

9. The sound insulation test box of a sound pickup according to any one of claims 1 to 4,

the main body (100) comprises a substrate and a sound insulation layer, wherein the substrate encloses the sealed inner cavity, and the sound insulation layer covers one side of the substrate opposite to the sealed inner cavity.

10. The sound insulation test case of a sound pickup according to any one of claims 1 to 4, further comprising:

a base (500), the base (500) comprising a support plate (510) and a foot pad (520), the support plate (510) being used for supporting the main body (100), the foot pad (520) being located on a side of the support plate (510) opposite to the main body (100);

the base (500) further includes a barrier pad (530), the barrier pad (530) being disposed between the support plate (510) and the body (100).

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