Microphone test tool

Abstract

The utility model discloses a microphone testing tool, and relates to the technical field of testing tool devices, the microphone testing tool comprises a supporting base, the top of the supporting base is provided with a soundproof box main body, the soundproof box main body is used for placing a microphone, and the top of the soundproof box main body is provided with a testing assembly. And the testing assembly is used for testing the microphone in the soundproof box main body. According to the microphone testing tool, the microphone is installed in the sound insulation box body, the sound insulation box body and the supporting base are detachably arranged, the sound insulation box body can be conveniently replaced according to the specification of the microphone, audio collection and operation testing are carried out on the replaced microphone through the top testing assembly, and meanwhile, the sound insulation box body can be conveniently replaced. The adjusting tool is connected with the testing assembly, the position of the testing assembly can be adjusted, the testing assembly can meet and be compatible with microphones of different models and is suitable for rapid model changing, and the testing device is small and exquisite in structure, easy to operate and higher in speed.

Description

Technical Field

[0001] This utility model relates to the technical field of testing fixtures, specifically to a microphone testing fixture. Background Technology

[0002] Mobile phones, tablets, laptops and other electronic products are all equipped with microphones to collect sound, so testing the performance of microphones is an essential step. Current microphone testing involves placing the microphone in a large soundproof box to isolate it from environmental noise in order to test the microphone's own parameters, which mainly include simple tests such as current and frequency detection.

[0003] From the perspective of sound insulation, many traditional testing devices lack effective sound insulation design, and their internal structures are mostly solid. This makes them highly susceptible to external environmental interference, which can easily affect test results. Consequently, microphones struggle to acquire accurate and pure audio data during testing, severely reducing test reliability. Most testing devices can only test specific microphone models, lacking multi-directional adjustment designs and failing to be compatible with multiple microphone models. In the face of rapidly evolving microphone models, they cannot quickly adapt to new models, greatly limiting testing efficiency and product development progress. This makes it difficult to meet the industry's growing demand for high-efficiency testing. To address the shortcomings of existing technologies, we propose a microphone testing fixture to solve the above problems. Utility Model Content

[0004] To achieve the above objectives, this utility model is implemented through the following technical solution: a microphone testing fixture, including a support base, a soundproof box body is provided on the top of the support base, the soundproof box body is used to place the microphone, a testing component is provided on the top of the soundproof box body, the testing component tests the microphone inside the soundproof box body, and the soundproof box body and the support base are detachably connected.

[0005] A support column is provided on one side of the support base, and an adjustment fixture is provided at the support column to adjust the position of the test component.

[0006] Preferably, the soundproof box body comprises a honeycomb soundproof upper cover, a honeycomb soundproof lower cover, a locking component, a connecting shaft, and a sound outlet hole. The honeycomb soundproof lower cover is detachably connected to a support base via multiple sets of bolts.

[0007] Preferably, the honeycomb soundproof top cover is hinged to the top of the honeycomb soundproof bottom cover via a connecting shaft, the locking member is provided on the outer wall of the honeycomb soundproof top cover and the honeycomb soundproof bottom cover, and the sound outlet is opened on the top of the honeycomb soundproof top cover.

[0008] Preferably, the testing component includes a testing machine and a testing head. The testing head is fixedly installed at the bottom of the testing machine, and the testing machine is installed on both sides of the top of the soundproof box body. The positions of the testing head and the sound outlet correspond to each other.

[0009] Preferably, the adjusting fixture includes a transmission screw, a guide rod, a rotary motor, a drive block, a connecting block, a first drive plate, a second drive plate, a first slide groove, and a second slide groove. The transmission screw is rotatably connected inside the support column, and the guide rod is fixedly installed on both sides inside the support column.

[0010] Preferably, the rotary motor is fixedly installed on the top of the support column, the output end of the rotary motor is fixedly connected to the transmission screw, the drive block is threaded onto the outer peripheral wall of the transmission screw, the drive block is slidably sleeved onto the outer peripheral wall of the two sets of guide rods, the connecting block is fixedly installed on the outer wall of the drive block, and the first drive plate is fixedly installed at the bottom of the connecting block.

[0011] Preferably, the second slide groove is formed inside the first drive plate, and the second drive plate is slidably connected to the second slide groove via a power device, and the first slide groove is formed inside the second drive plate.

[0012] Preferably, the testing machine is slidably connected inside the first slide groove via a power device, and the bottom of the testing head is at the same level as the bottom of the second drive plate.

[0013] This utility model discloses a microphone testing fixture, which has the following beneficial effects: The microphone testing fixture, by installing the microphone inside the soundproof box body and detachably setting the soundproof box body and support base, allows for convenient replacement of the soundproof box body according to the microphone specifications. Audio acquisition and processing tests are performed on the replaced microphone through the top testing component. Simultaneously, by connecting the adjustment fixture to the testing component, the position of the testing component can be adjusted to meet the requirements of different microphone models, facilitating rapid model changeover. This testing device is compact, easy to operate, and faster. The soundproof box body adopts a hollow soundproof design (multi-hollow honeycomb structure made using 3D printing technology) and is designed with multiple layers of soundproof walls, greatly improving soundproofing efficiency and preventing external environmental interference. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the connection structure between the soundproof box body and the supporting base of this utility model;

[0017] Figure 3 This is a schematic diagram of the connection structure between the test component and the adjustment fixture of this utility model;

[0018] Figure 4 This is an exploded structural diagram of the adjustment tooling and testing components of this utility model.

[0019] In the diagram: 1. Support base; 2. Soundproof box body; 201. Honeycomb soundproof upper cover; 202. Honeycomb soundproof lower cover; 203. Locking component; 204. Connecting shaft; 205. Sound outlet; 3. Test assembly; 301. Test machine; 302. Test head; 4. Support column; 5. Adjustment fixture; 501. Transmission screw; 502. Guide rod; 503. Rotary motor; 504. Drive block; 505. Connecting block; 506. First drive plate; 507. Second drive plate; 508. First slide groove; 509. Second slide groove. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments of this utility model are described clearly and completely. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0021] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0022] This utility model discloses a microphone testing fixture.

[0023] According to the appendix Figure 1-4 As shown, it includes a support base 1, a soundproof box body 2 is provided on the top of the support base 1, the soundproof box body 2 is used to place the microphone, a test component 3 is provided on the top of the soundproof box body 2, the test component 3 tests the microphone inside the soundproof box body 2, and the soundproof box body 2 and the support base 1 are detachable.

[0024] A support column 4 is provided on one side of the support base 1, and an adjustment fixture 5 is provided at the support column 4. The adjustment fixture 5 adjusts the position of the test component 3. In the process of use, firstly, select a suitable soundproof box body 2 and support base 1 according to the size of the test microphone and install it. Place the test microphone inside the soundproof box body 2 and close the soundproof box body 2. Then, with the cooperation of the adjustment fixture 5, the test component 3 can be automatically moved to a suitable position, so that the test component 3 can perform audio acquisition and calculation tests on the microphone.

[0025] The soundproof enclosure body 2 comprises a honeycomb soundproof upper cover 201, a honeycomb soundproof lower cover 202, locking components 203, a connecting shaft 204, and a sound outlet 205. The honeycomb soundproof lower cover 202 is detachably connected to the support base 1 by multiple sets of bolts. When the microphone is installed inside the soundproof enclosure body 2, the two sets of locking components 203 are opened to separate the honeycomb soundproof upper cover 201 from the honeycomb soundproof lower cover 202. After the microphone is installed inside the soundproof enclosure body 2, the honeycomb soundproof upper cover 201 is closed. The locking components 203 connect the honeycomb soundproof upper cover 201 and the honeycomb soundproof lower cover 202, thus sealing the soundproof enclosure body 2. The honeycomb soundproof upper cover 201 is hinged to the honeycomb soundproof lower cover via the connecting shaft 204. At the top of 202, locking parts 203 are set on the outer walls of the honeycomb soundproof upper cover 201 and the honeycomb soundproof lower cover 202. The sound outlet 205 is opened at the top of the honeycomb soundproof upper cover 201. It should be noted that microphones of different sizes and specifications require the use of special test fixtures. The main body 2 of the soundproof box is the test fixture and adopts a special mechanism design. The internal parts of the components adopt a hollow soundproof design (multiple hollow honeycomb structures made by 3D printing technology) and are designed with multiple layers of soundproof walls, which greatly improves the soundproofing efficiency and prevents external environmental interference. The honeycomb soundproof lower cover 202 and the honeycomb soundproof upper cover 201 are covered with sound-absorbing materials, and soft materials are used at the upper and lower contact surfaces to ensure sealing. The combination of multiple methods greatly reduces the size of the soundproof box.

[0026] Test component 3 includes tester 301 and test head 302. Test head 302 is fixedly installed at the bottom of tester 301. Tester 301 is installed on both sides of the top of soundproof enclosure body 2. The positions of test head 302 and sound outlet 205 are corresponding. Different models of microphones can be replaced by changing the soundproof enclosure body 2 and adjusting the position of the sound cavity. The position of the sound outlet 205 on the top of different soundproof enclosure bodies 2 is different. By connecting test component 3 to adjustment fixture 5, the position of test component 3 can be adjusted, which is compatible with different models and suitable for quick model change.

[0027] The adjustment fixture 5 includes a transmission screw 501, a guide rod 502, a rotary motor 503, a drive block 504, a connecting block 505, a first drive plate 506, a second drive plate 507, a first slide rail 508, and a second slide rail 509. The transmission screw 501 is rotatably connected inside the support column 4, and the guide rod 502 is fixedly installed on both sides inside the support column 4. When testing the microphone through the test assembly 3, the positions of the two sets of test heads 302 are first adjusted according to the position of the sound outlet 205 at the top of the soundproof box body 2. The position is then adjusted by starting the first drive plate 506. The power device at the drive plate 506 causes the two sets of second drive plates 507 to slide the test component 3 laterally on the top of the soundproof box body 2. Activating the power device at the second drive plate 507 enables the two sets of test machines 301 to slide vertically on the top of the soundproof box body 2. This allows for multi-directional adjustment of the positions of the two sets of test heads 302 to meet the testing needs of microphones of different specifications. The power device uses a combination of a motor and a lead screw to achieve linear movement of the test component 3 and multi-directional adjustment of the two sets of test heads 302.

[0028] A rotary motor 503 is fixedly installed on the top of the support column 4. The output end of the rotary motor 503 is fixedly connected to the transmission screw 501. A drive block 504 is threaded onto the outer peripheral wall of the transmission screw 501. The drive block 504 is slidably sleeved onto the outer peripheral wall of the two sets of guide rods 502. A connecting block 505 is fixedly installed on the outer wall of the drive block 504. A first drive plate 506 is fixedly installed at the bottom of the connecting block 505. After adjusting the position of the two sets of test heads 302, the rotary motor 503 is started, causing the rotary motor 503 to drive the transmission screw 501 to rotate inside the support column 4. This allows the drive block 504 and the two sets of drive plates to simultaneously drive the two sets of test heads 302 downwards. This causes the two sets of second drive plates 507 to press against the top of the soundproof box body 2, while simultaneously positioning the two sets of test heads 302 at the top of the sound outlet 205. This allows the microphone to receive the test sound waves emitted by the high-fidelity speaker in the sound cavity through the sound outlet 205, enabling the test assembly 3 to perform audio acquisition and calculation tests on the microphone.

[0029] The second slide 509 is located inside the first drive plate 506. The second drive plate 507 is slidably connected to the second slide 509 via a power device. The first slide 508 is located inside the second drive plate 507. The test machine 301 is slidably connected to the first slide 508 via a power device. The bottom of the test head 302 is at the same level as the bottom of the second drive plate 507. The test head 302 slides inside the first slide 508 via the test machine 301, which allows the test head 302 to move to the position of the sound outlet 205 to perform audio acquisition and calculation tests on the microphone.

[0030] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A microphone testing fixture, including a support base (1), characterized in that: The top of the support base (1) is provided with a soundproof box body (2), which is used to place a microphone. The top of the soundproof box body (2) is provided with a test component (3), which tests the microphone inside the soundproof box body (2). The soundproof box body (2) and the support base (1) are detachable. A support column (4) is provided on one side of the support base (1), and an adjustment fixture (5) is provided at the support column (4) to adjust the position of the test component (3).

2. The microphone testing fixture according to claim 1, characterized in that: The soundproof box body (2) consists of a honeycomb soundproof upper cover (201), a honeycomb soundproof lower cover (202), a locking component (203), a connecting shaft (204), and a sound outlet (205). The honeycomb soundproof lower cover (202) is detachably connected to the support base (1) by multiple sets of bolts.

3. The microphone testing fixture according to claim 2, characterized in that: The honeycomb soundproof top cover (201) is hinged to the top of the honeycomb soundproof bottom cover (202) via a connecting shaft (204). The locking member (203) is provided on the outer wall of the honeycomb soundproof top cover (201) and the honeycomb soundproof bottom cover (202). The sound outlet (205) is opened on the top of the honeycomb soundproof top cover (201).

4. The microphone testing fixture according to claim 3, characterized in that: The test component (3) includes a test machine (301) and a test head (302). The test head (302) is fixedly installed at the bottom of the test machine (301). The test machine (301) is installed on both sides of the top of the soundproof box body (2). The test head (302) is positioned corresponding to the sound outlet (205).

5. The microphone testing fixture according to claim 1, characterized in that: The adjustment fixture (5) includes a transmission screw (501), a guide rod (502), a rotary motor (503), a drive block (504), a connecting block (505), a first drive plate (506), a second drive plate (507), a first slide groove (508), and a second slide groove (509). The transmission screw (501) is rotatably connected inside the support column (4), and the guide rod (502) is fixedly installed on both sides inside the support column (4).

6. The microphone testing fixture according to claim 5, characterized in that: The rotary motor (503) is fixedly installed on the top of the support column (4). The output end of the rotary motor (503) is fixedly connected to the transmission screw (501). The drive block (504) is threaded onto the outer peripheral wall of the transmission screw (501). The drive block (504) is slidably sleeved on the outer peripheral wall of the two sets of guide rods (502). The connecting block (505) is fixedly installed on the outer wall of the drive block (504). The first drive plate (506) is fixedly installed at the bottom of the connecting block (505).

7. The microphone testing fixture according to claim 6, characterized in that: The second slide groove (509) is formed inside the first drive plate (506), and the second drive plate (507) is slidably connected inside the second slide groove (509) via a power device. The first slide groove (508) is formed inside the second drive plate (507).

8. The microphone testing fixture according to claim 4, characterized in that: The testing machine (301) is slidably connected inside the first slide groove (508) via a power device, and the bottom of the testing head (302) is at the same level as the bottom of the second drive plate (507).

Images