Micro-speaker listening tool

Abstract

The utility model discloses a kind of miniature loudspeaker listening tool, including support, bottom plate, lower template and mounting bracket, the bottom plate is obliquely fixed on the support, and the bottom plate is equipped with windowing;The lower template rotatably is equipped at the windowing, and the lower template is equipped with placement groove, and the bottom surface of the placement groove is equipped with sound outlet;The mounting bracket is equipped on the support, and the mounting bracket is equipped with pressure driving element, and the output end of the pressure driving element is connected with the pressure block corresponding to the placement groove setting. By rotatably embedding lower template in bottom plate windowing, placement groove can be freely switched between placement state and oblique test state, and when taking and placing material, placement groove on lower template can be rotated to horizontal position facing tester, tester does not need to blindly place by feeling, miniature loudspeaker can be smoothly placed into placement groove along horizontal direction, completely avoid diaphragm and middle paste and groove wall to occur scraping, collision.

Description

Technical Field

[0001] This utility model relates to the field of testing fixtures for electroacoustic converters, and in particular to a listening fixture for a miniature loudspeaker. Background Technology

[0002] With the widespread adoption of smartphones and other mobile devices, the market demand for miniature speakers is constantly increasing. To ensure product quality, manufacturers need to conduct manual listening tests during the manufacturing process of miniature speakers. Currently, the industry commonly uses methods such as... Figure 1 The listening fixture shown has its base plate 1 tilted relative to the tabletop, so its sound outlet 11 is also tilted, allowing the tester to listen with their ears. Compared to handheld listening fixtures, this reduces the chance of the tester developing occupational diseases, and also increases testing efficiency and accuracy. However, the existing listening fixture also has defects. For example, the placement slot on the base plate is tilted, and the tester has to place the miniature speaker to be tested into the placement slot on the base plate by feel, which can cause scratches or even damage to the diaphragm and center plate of the miniature speaker to be tested. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a miniature speaker listening fixture that can improve the damage phenomenon of the miniature speaker under test during the handling process.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: a miniature loudspeaker listening fixture, including a bracket, a base plate, a lower template, and a mounting bracket. The base plate is fixedly mounted on the bracket at an incline, and the base plate has a window. The lower template is rotatably mounted at the window, and the lower template has a placement groove, the bottom surface of which has a sound outlet. The mounting bracket is mounted on the bracket, and the mounting bracket has a pressing drive component. The output end of the pressing drive component is connected to a pressure block corresponding to the placement groove.

[0005] Furthermore, the opening is provided with a stop block for blocking the lower template. When the stop block abuts against the lower template, the opening of the placement groove faces the pressure block.

[0006] Furthermore, one side of the lower template is provided with a stop groove for cooperating with the stop block.

[0007] Furthermore, the rotation angle range of the lower template is greater than 90° and less than 360°.

[0008] Furthermore, the rotation angle range of the lower template is greater than 90° and less than 180°.

[0009] Furthermore, the lower template is rotatably connected to the base plate via a pivot shaft located on a central axis of the lower template.

[0010] Furthermore, the lower template has a test position and a placement position. When the lower template is in the test position, the opening of the placement slot faces the pressure block. When the lower template is in the placement position, the lower template is in a vertical state.

[0011] Furthermore, the base plate includes a fixed frame and a mounting plate detachably mounted on the middle frame area of ​​the fixed frame. The fixed frame is fixedly connected to the bracket. The window is located on the mounting plate. The lower template is rotatably connected to the mounting plate. The pressure block is detachably connected to the pressure driving component.

[0012] Furthermore, the pressure-driving component is a cylinder, a linear push rod, or a hydraulic rod.

[0013] Furthermore, the pressure block is provided with a test probe, which is used to power the miniature speaker to be tested located in the placement slot.

[0014] The beneficial effects of this utility model are as follows: Compared with the existing listening fixture with an inclined fixed placement slot, this listening fixture allows the placement slot to be freely switched between the placement state and the inclined testing state by rotatably embedding the lower template in the window of the base plate. When picking up or putting down the material, the placement slot on the lower template can be rotated to a horizontal position facing the tester. The tester does not need to place it blindly by feel. The miniature speaker can be smoothly placed into the placement slot in the horizontal direction, completely avoiding scratching and collision between the diaphragm and the middle plate and the slot wall. Then, the lower template can be rotated back to the inclined angle for listening. At the same time, the pressure driving component on the mounting bracket drives the pressure block to press the miniature speaker, ensuring the acoustic sealing and consistency of the testing process. Thus, while taking into account the high efficiency listening advantage of the original inclined sound outlet, it significantly reduces the product damage rate and improves the test yield and operational safety. Attached Figure Description

[0015] Figure 1 A schematic diagram of the structure of an existing miniature loudspeaker listening fixture; Figure 2 Schematic diagram of the overall structure of the miniature loudspeaker listening fixture Figure 1 ; Figure 3 A schematic diagram of part of the structure of a miniature loudspeaker listening fixture; Figure 4 for Figure 3 A cross-sectional view of the structure shown; Figure 5 Schematic diagram of the overall structure of the miniature loudspeaker listening fixture Figure 2 .

[0016] Label Explanation: 1. Base plate; 11. Sound outlet; 12. Window opening; 121. Stop block; 13. Fixing frame; 14. Mounting plate; 2. Bracket; 3. Lower template; 31. Placement groove; 32. Stop groove; 4. Mounting bracket; 5. Pressure-driven components; 6. Pressing blocks; 7. Shaft. Detailed Implementation

[0017] To explain in detail the technical content, objectives, and effects of this utility model, the following description is provided in conjunction with the embodiments and accompanying drawings.

[0018] Please refer to Figures 2 to 5 A miniature loudspeaker listening fixture includes a support 2, a base plate 1, a lower template 3, and a mounting bracket 4. The base plate 1 is fixedly mounted on the support 2 at an incline and has a window 12. The lower template 3 is rotatably mounted at the window 12 and has a placement groove 31. The bottom surface of the placement groove 31 has a sound outlet 11. The mounting bracket 4 is mounted on the support 2 and has a pressing drive 5. The output end of the pressing drive 5 is connected to a pressure block 6 corresponding to the placement groove 31.

[0019] As can be seen from the above description, the beneficial effects of this utility model are as follows: by rotatably embedding the lower template 3 into the window 12 of the base plate 1, the placement slot 31 can be freely switched between the placement state and the tilt test state. When picking up or putting down materials, the placement slot 31 on the lower template 3 can be rotated to a horizontal position facing the tester. The tester does not need to place it blindly by feeling. The miniature speaker can be smoothly placed into the placement slot 31 in the horizontal direction, completely avoiding scratching and collision between the diaphragm and the middle patch and the slot wall. Then, the lower template 3 can be rotated back to the tilt angle to listen to the sound. At the same time, the pressure driving component 5 on the mounting bracket 4 drives the pressure block 6 to press the miniature speaker, ensuring the acoustic sealing and consistency of the test process. Thus, while taking into account the high-efficiency listening advantage of the original tilted sound outlet 11, the product damage rate is significantly reduced, and the test yield and operation safety are improved.

[0020] Furthermore, the window 12 is provided with a stop block 121 for blocking the lower template 3. When the stop block 121 abuts against the lower template 3, the opening of the placement groove 31 faces the pressure block 6.

[0021] As described above, when the stop block 121 abuts against the lower template 3 inside the window 12, the opening of the placement groove 31 is aligned with the pressure block 6, which directly limits the extreme test position of the lower template 3. This avoids the pressure block 6 being eccentrically crushed and damaged by the test micro-speaker or the seal failing due to insufficient pressure caused by manual rotation. This not only improves the repeatability of the test but also saves the time of repeated visual alignment, further ensuring the consistency and efficiency of the acoustic test.

[0022] Furthermore, one side of the lower template 3 is provided with a stop groove 32 for cooperating with the stop block 121.

[0023] As described above, a stop groove 32 that cooperates with the stop block 121 is provided on one side of the lower template 3, so that the two form a concave-convex positioning pair, ensuring that the pressing angle is exactly the same each time, and improving the stability of the test data.

[0024] Furthermore, the rotation angle range of the lower template 3 is greater than 90° and less than 360°.

[0025] Furthermore, the rotation angle range of the lower template 3 is greater than 90° and less than 180°.

[0026] Furthermore, the lower template 3 is rotatably connected to the base plate 1 via a rotating shaft 7, and the rotating shaft 7 is located on a central axis of the lower template 3.

[0027] As can be seen from the above description, by setting the rotating shaft 7 on the central axis of the lower template 3, the force on the placement groove 31 is balanced, the rotation process is smooth and without sway, and the force is symmetrically distributed when the pressure block 6 is pressed down, thereby improving the sealing and acoustic reproducibility.

[0028] Furthermore, the lower template 3 has a test position and a placement position. When the lower template 3 is in the test position, the opening of the placement groove 31 faces the pressure block 6. When the lower template 3 is in the placement position, the lower template 3 is in a vertical state.

[0029] As described above, the template 3 is clearly given two functional states: "test position" and "placement position". In the placement position, the slot opening faces vertically forward and the tester's line of sight is perpendicular to the bottom of the slot, so that the tester can smoothly place the miniature speaker to be tested into the placement slot 31. In the test position, the opening of the placement slot 31 is tilted upward and aligned with the pressure block 6, and the pressing and sealing can be completed with one click. The state transition is intuitive and interlocked, avoiding misoperation, protecting the miniature speaker product to be tested and reducing training costs.

[0030] Furthermore, the base plate 1 includes a fixed frame 13 and a mounting plate 14 detachably mounted on the middle frame area of ​​the fixed frame 13. The fixed frame 13 is fixedly connected to the bracket 2. The window 12 is provided on the mounting plate 14. The lower template 3 is rotatably connected to the mounting plate 14. The pressure block 6 is detachably connected to the pressure driving component 5.

[0031] As described above, the base plate 1 is divided into a fixed frame 13 and a detachable mounting plate 14, and the pressure block 6 and the pressure driving component 5 are also made into a quick-release structure. When changing the model of the miniature speaker to be tested, only the mounting plate 14 and the corresponding pressure block 6 need to be replaced as a whole to complete the tooling change, which greatly reduces the downtime caused by the traditional whole replacement of the bracket 2, realizes that one production line is compatible with multiple products, and significantly saves equipment investment and space occupation.

[0032] Furthermore, the pressure-driving component 5 is a cylinder, a linear push rod, or a hydraulic rod.

[0033] Furthermore, the pressure block 6 is provided with a test probe, which is used to power the miniature speaker to be tested located in the placement slot 31.

[0034] As described above, integrating test probes on the pressure block 6 allows the clamping action and power-on triggering to be completed synchronously, eliminating the need for additional wiring steps, avoiding scratching of the solder pads by manually plugging and unplugging test probes, and reducing the misjudgment rate caused by poor contact; at the same time, the test probes move up and down with the pressure block 6 as a whole, with high positioning accuracy, which can significantly reduce broken or bent needle failures and improve equipment uptime and test stability.

[0035] Please refer to Figures 2 to 5 The first embodiment of this utility model is: a miniature loudspeaker listening fixture, used to assist manual listening tests on the miniature loudspeaker under test.

[0036] The miniature loudspeaker listening fixture includes a support 2, a base plate 1, a lower template 3, and a mounting bracket 4. The base plate 1 is fixedly mounted on the support 2 at an incline, and has a window 12. The lower template 3 is rotatably mounted at the window 12, and has a placement slot 31 for placing the miniature loudspeaker to be tested. The bottom surface of the placement slot 31 has a sound outlet 11, through which the sound generated by the miniature loudspeaker to be tested is transmitted. The mounting bracket 4 is mounted on the support 2, and has a pressing drive 5. The output end of the pressing drive 5 is connected to a pressure block 6 corresponding to the placement slot 31. The pressure block 6 is used to press the miniature loudspeaker to be tested in the placement slot 31. The pressure block 6 has a test probe, which is used to supply power to the miniature loudspeaker to be tested in the placement slot 31. The pressing drive 5 is a cylinder, a linear push rod, or a hydraulic rod.

[0037] The lower template 3 has a test position and a placement position. When the lower template 3 is in the test position, the opening of the placement groove 31 faces the pressure block 6. When the lower template 3 is in the placement position, the lower template 3 is in a vertical state. During the listening test, the lower template 3 is in the test position, and the tester's ear is facing the sound outlet 11 and about 10 centimeters away from the sound outlet 11. When taking or placing the miniature speaker to be tested, the lower template 3 is rotated to the placement position (for example, the lower template 3 is in a vertical state), and the opening of the placement groove 31 faces the tester so that the tester can directly look at and place the miniature speaker to be tested flat, thereby reducing the probability of scratches or damage to the miniature speaker to be tested during placement.

[0038] In a preferred embodiment, the window 12 is provided with a stop block 121 for blocking the lower template 3. When the stop block 121 abuts against the lower template 3, the opening of the placement groove 31 faces the pressure block 6. That is, when the stop block 121 abuts against the lower template 3, the lower template 3 is in the test position. Optionally, one side of the lower template 3 is provided with a stop groove 32 for cooperating with the stop block 121.

[0039] The rotation angle range of the lower template 3 is greater than 90° and less than 360°. Preferably, the rotation angle range of the lower template 3 is greater than 90° and less than 180°.

[0040] In one or more embodiments, the lower template 3 is rotatably connected to the base plate 1 via a rotating shaft 7, the rotating shaft 7 being located on a central axis of the lower template 3.

[0041] To improve the versatility of the listening fixture, in some embodiments, the base plate 1 includes a fixed frame 13 and a mounting plate 14 that is detachably mounted on the middle frame area of ​​the fixed frame 13. The fixed frame 13 is fixedly connected to the bracket 2. The window 12 is provided on the mounting plate 14. The lower template 3 is rotatably connected to the mounting plate 14. The pressure block 6 is detachably connected to the pressure driving component 5.

[0042] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent modifications made based on the content of this utility model specification and drawings, or direct or indirect applications in related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A miniature loudspeaker listening fixture, characterized in that, include support; A base plate, which is fixedly mounted at an incline on the bracket, and the base plate is provided with a window; The lower template is rotatably disposed at the window opening, and the lower template is provided with a placement groove, the bottom surface of which is provided with a sound outlet; The mounting bracket is mounted on the support frame and is equipped with a pressure driving component. The output end of the pressure driving component is connected to a pressure block corresponding to the placement slot.

2. The miniature loudspeaker listening fixture according to claim 1, characterized in that, The opening is provided with a stop block for blocking the lower template. When the stop block abuts against the lower template, the opening of the placement groove faces the pressure block.

3. The miniature loudspeaker listening fixture according to claim 2, characterized in that, One side of the lower template is provided with a stop groove for cooperating with the stop block.

4. The miniature loudspeaker listening fixture according to claim 2, characterized in that, The rotation angle range of the lower template is greater than 90° and less than 360°.

5. The miniature loudspeaker listening fixture according to claim 4, characterized in that, The rotation angle range of the lower template is greater than 90° and less than 180°.

6. The miniature loudspeaker listening fixture according to claim 1, characterized in that, The lower template is rotatably connected to the base plate via a rotating shaft, which is located on a central axis of the lower template.

7. The miniature loudspeaker listening fixture according to claim 1, characterized in that, The lower template has a test position and a placement position. When the lower template is in the test position, the opening of the placement slot faces the pressure block. When the lower template is in the placement position, the lower template is in a vertical state.

8. The miniature loudspeaker listening fixture according to claim 1, characterized in that, The base plate includes a fixed frame and a mounting plate that can be detachably installed in the middle frame area of ​​the fixed frame. The fixed frame is fixedly connected to the bracket. The window is located on the mounting plate. The lower template is rotatably connected to the mounting plate. The pressure block is detachably connected to the pressure driving component.

9. The miniature loudspeaker listening fixture according to claim 1, characterized in that, The pressure-driving component is a cylinder, a linear push rod, or a hydraulic rod.

10. The miniature loudspeaker listening fixture according to claim 1, characterized in that, The pressure block is equipped with a test probe, which is used to power the miniature speaker to be tested in the placement slot.

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