A micro speaker module test tool

By designing a test fixture for miniature speaker modules that includes a base, a rotating pressure block, and conductive foam, the problem of test misjudgment caused by unstable wire continuity was solved, achieving a more efficient testing process and lower costs.

CN224319520UActive Publication Date: 2026-06-02SHENZHEN SUNWAY ACOUSTICS TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHENZHEN SUNWAY ACOUSTICS TECH CO LTD
Filing Date
2025-06-04
Publication Date
2026-06-02

AI Technical Summary

Technical Problem

During the testing of miniature speaker modules, the long and flexible wires are prone to bending and warping, which can lead to unstable conductivity and test misjudgment. Existing test fixtures using alligator clips require manual alignment and clamping, reducing testing efficiency.

Method used

Design a test fixture for a miniature speaker module, comprising a base, a rotating pressure block, and conductive foam. By rotating the pressure block, the conductive foam clamps the conductive block with the conductive wire to achieve stable conductivity. The magnetic attraction component maintains the pressed state to ensure good contact between the conductive block and the wire.

Benefits of technology

It improves the stability and efficiency of micro loudspeaker module testing, reduces misjudgments, simplifies the operation process, and lowers testing costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a kind of miniature loudspeaker module test tool, including base, rotary pressure block and conductive foam, be equipped with for placing groove and conductive block on base, and conductive block is connected external power supply;Rotary pressure block is rotatably connected with one end of base;Conductive foam is set on rotary pressure block, and it is set corresponding to conductive block.This miniature loudspeaker module test tool structure is novel, when the end of the wire of miniature loudspeaker module stretches to the area between conductive foam and conductive block, tester rotates rotary pressure block, so that conductive foam and conductive block can clamp wire, so that wire and conductive block realize good contact conduction, and after rotary pressure block is pressed into position, conductive foam and conductive block can be contacted with large area and be conducted, beneficial to more degree to improve the stability of wire and conductive block conduction, so as to reduce miniature loudspeaker module test misjudgment phenomenon;The whole operation process of tester is very simple, and it is beneficial to improve test efficiency, reduce test cost.
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Description

Technical Field

[0001] This utility model relates to the technical field of loudspeaker testing devices, and in particular to a testing fixture for a miniature loudspeaker module. Background Technology

[0002] With the widespread adoption of smartphones and other mobile devices, the market demand for miniature speaker modules is constantly increasing. A mobile device often comes equipped with multiple speakers, and due to space constraints, some miniature speaker modules require relatively long external cables, such as... Figure 1 As shown. However, because the external wires of this miniature speaker module are relatively long and flexible, they are prone to bending and curling during acoustic testing. This can sometimes prevent the wires from conducting stably with the external power supply, causing the miniature speaker module to not produce sound and leading to misjudgments. To overcome this problem, some testing fixtures are equipped with alligator clips for holding the conductive wires. However, using alligator clips to energize the wires requires the tester to align the clips with the ends of the wires, which significantly reduces testing efficiency. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a test fixture for miniature speaker modules that can improve testing efficiency.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a miniature loudspeaker module testing fixture, comprising:

[0005] A base, wherein the base is provided with a slot for placing a conductive block, the conductive block being connected to an external power source;

[0006] The rotating pressure block has one end rotatably connected to the base.

[0007] Conductive foam is disposed on the rotating pressure block and is positioned corresponding to the conductive block.

[0008] Furthermore, the base is also provided with a wire groove, one end of which is connected to the placement groove.

[0009] Furthermore, the base is provided with a mounting groove, the conductive block is disposed in the mounting groove, the other end of the wire groove is connected to the mounting groove, and the top surface of the conductive block is lower than or flush with the bottom surface of the wire groove.

[0010] Furthermore, the base includes a main body and a mounting body, the mounting body being disposed in the mounting groove, and the conductive block being disposed on the mounting body.

[0011] Furthermore, the rotating pressure block is provided with an aluminum block, the aluminum block has an adhesive surface, and double-sided adhesive is provided on the adhesive surface. The conductive foam is bonded to the aluminum block through the double-sided adhesive.

[0012] Furthermore, the number of conductive blocks and the number of conductive foam are both two, with each conductive block and each conductive foam being arranged in a one-to-one correspondence.

[0013] Furthermore, the base is provided with an insulating partition, which is located between the two conductive blocks.

[0014] Furthermore, the top of the insulating partition is positioned higher than the top surface of the base, and the rotating pressure block is provided with a clearance groove for avoiding the insulating partition.

[0015] Furthermore, the other end of the rotating pressure block is provided with a first magnetic suction element, and the base is provided with a second magnetic suction element for magnetically engaging with the first magnetic suction element.

[0016] Furthermore, it also includes a vertical wall and a downward driving component disposed on the vertical wall. The base is fixedly connected to the vertical wall. The vertical wall has a test port communicating with the placement slot. The downward driving component is fixedly disposed on the vertical wall. The output end of the downward driving component is connected to a downward pressing block. The downward pressing block is disposed corresponding to the placement slot.

[0017] The beneficial effects of this utility model are as follows: The test fixture for the miniature speaker module has a novel structure. When the end of the wire of the miniature speaker module extends into the area between the conductive foam and the conductive block, the tester can rotate the pressure block to clamp the wire between the conductive foam and the conductive block, thereby enabling good contact and conductivity between the wire and the conductive block. Moreover, after the pressure block is rotated and pressed into place, the conductive foam and the conductive block can make contact and conduction over a large area, which helps to improve the stability of the conduction between the wire and the conductive block to a greater extent, thereby reducing the phenomenon of misjudgment in the test of the miniature speaker module. The entire operation process is very simple for the tester, which helps to improve test efficiency and reduce test costs. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of a miniature speaker module;

[0019] Figure 2 A schematic diagram of the test fixture for a miniature speaker module;

[0020] Figure 3 A cross-sectional view of a portion of the test fixture for a miniature speaker module.

[0021] Label Explanation:

[0022] 1. Wire;

[0023] 2. Base; 21. Placement slot; 22. Cable tray; 23. Mounting slot; 24. Main body; 25. Mounting body; 26. Insulating partition; 27. Second magnetic component;

[0024] 3. Rotating pressure block; 31. Clearance groove; 32. First magnetic suction component;

[0025] 4. Conductive foam;

[0026] 5. Conductive block;

[0027] 6. Standing wall;

[0028] 71. Downward driving component; 72. Downward block;

[0029] 8. Aluminum block; 81. Bonding surface;

[0030] 9. Double-sided tape. Detailed Implementation

[0031] 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.

[0032] Please refer to Figure 2 as well as Figure 3 A testing fixture for a miniature speaker module, comprising:

[0033] Base 2, which is provided with a slot 21 and a conductive block 5, the conductive block 5 being connected to an external power source;

[0034] Rotate the pressure block 3, one end of which is rotatably connected to the base 2;

[0035] Conductive foam 4 is disposed on the rotating pressure block 3 and is disposed corresponding to the conductive block 5.

[0036] As can be seen from the above description, the beneficial effects of this utility model are as follows: The test fixture for the miniature speaker module has a novel structure. When the end of the wire 1 of the miniature speaker module extends to the area between the conductive foam 4 and the conductive block 5, the tester can rotate the pressure block 3 to clamp the conductive foam 4 and the conductive block 5, thereby enabling the wire 1 and the conductive block 5 to make good contact and conduction. Moreover, after the pressure block 3 is rotated and pressed into place, the conductive foam 4 and the conductive block 5 can make contact and conduction over a large area, which is conducive to improving the stability of the conduction between the wire 1 and the conductive block 5 to a greater extent, thereby reducing the phenomenon of misjudgment in the test of the miniature speaker module. The entire operation process is very simple for the tester, which is conducive to improving test efficiency and reducing test costs.

[0037] Furthermore, the base 2 is also provided with a wire groove 22, one end of which is connected to the placement groove 21.

[0038] As described above, the wire groove 22 is used to guide the routing direction of the miniature speaker module wire 1 so that the end of the wire 1 can extend more smoothly between the conductive foam 4 and the conductive block 5.

[0039] Furthermore, the base 2 is provided with an installation groove 23, the conductive block 5 is disposed in the installation groove 23, the other end of the wire groove 22 is connected to the installation groove 23, and the top surface of the conductive block 5 is lower than or flush with the bottom surface of the wire groove 22.

[0040] As can be seen from the above description, the presence of the mounting groove 23 facilitates the positioning and installation of the conductive block 5. The top surface of the conductive block 5 being lower than or flush with the bottom surface of the wire groove 22 allows the wire 1 to be inserted more smoothly between the conductive foam 4 and the conductive block 5.

[0041] Furthermore, the base 2 includes a main body 24 and a mounting body 25, the mounting body 25 is disposed in the mounting groove 23, and the conductive block 5 is disposed on the mounting body 25.

[0042] Furthermore, the rotating pressure block 3 is provided with an aluminum block 8, the aluminum block 8 has an adhesive surface 81, the adhesive surface 81 is provided with double-sided adhesive 9, and the conductive foam 4 is bonded to the aluminum block 8 through the double-sided adhesive 9.

[0043] As described above, the aluminum block 8 provides an excellent bonding surface 81, allowing the double-sided adhesive 9 to maintain a flat state for a long time. This enables the conductive foam 4 and the aluminum block 8 to achieve a stable flat bond through the double-sided adhesive 9, effectively improving the phenomenon of wrinkling and falling off of the conductive foam 4 caused by the wrinkling of the double-sided adhesive 9 after repeated use. This helps to improve the structural stability of the test fixture and extend its service life.

[0044] Furthermore, the number of conductive blocks 5 and the number of conductive foam 4 are both two, and the conductive blocks 5 and the conductive foam 4 are arranged in a one-to-one correspondence.

[0045] As can be seen from the above description, one conductive block 5 is connected to the positive terminal of the external power supply, and the other conductive block 5 is connected to the negative terminal of the external power supply.

[0046] Furthermore, the base 2 is provided with an insulating partition 26, which is located between the two conductive blocks 5.

[0047] As described above, the insulating partition 26 can effectively separate the two conductive blocks 5, thereby preventing short circuits in the micro loudspeaker module under test.

[0048] Furthermore, the top of the insulating partition 26 is positioned higher than the top surface of the base 2, and the rotating pressure block 3 is provided with a clearance groove 31 for avoiding the insulating partition 26.

[0049] As described above, the top of the insulating partition 26 is set higher than the top surface of the base 2, which makes it easier for testers to separate the positive and negative wires in the conductor 1 and place the ends of the positive and negative wires on both sides of the insulating partition 26, thereby improving the test efficiency to a greater extent.

[0050] Furthermore, the other end of the rotating pressure block 3 is provided with a first magnetic suction member 32, and the base 2 is provided with a second magnetic suction member 27 for magnetically engaging with the first magnetic suction member 32.

[0051] As can be seen from the above description, the magnetic attraction between the rotating pressure block 3 and the base 2 allows the rotating pressure block 3 to maintain a good pressing state, thereby ensuring that the conductive block 5 and the wire 1 can achieve good contact and conduction.

[0052] Furthermore, it also includes a vertical wall 6 and a downward driving member 71 disposed on the vertical wall 6. The base 2 is fixedly connected to the vertical wall 6. The vertical wall 6 has a test port communicating with the placement slot 21. The downward driving member 71 is fixedly disposed on the vertical wall 6. The output end of the downward driving member 71 is connected to a downward pressing block 72. The downward pressing block 72 is disposed corresponding to the placement slot 21.

[0053] As described above, the vertical wall 6 is a wall panel of the test chamber. Under the drive of the downward pressing drive 71, the pressing block 72 can stably press the miniature speaker module, which helps to ensure the accuracy of the test results.

[0054] Please refer to Figure 2 and Figure 3 The first embodiment of this utility model is: a micro loudspeaker module testing fixture, used to assist a micro loudspeaker module with an external wire 1 in acoustic performance testing.

[0055] The miniature speaker module testing fixture includes a base 2, a rotating pressure block 3, conductive foam 4, a vertical wall 6, and a downward pressure drive component 71 disposed on the vertical wall 6. The base 2 is provided with a placement slot 21 and a conductive block 5, and the conductive block 5 is connected to an external power source. One end of the rotating pressure block 3 is rotatably connected to the base 2. The conductive foam 4 is disposed on the rotating pressure block 3 and is positioned corresponding to the conductive block 5. The base 2 is fixedly connected to the vertical wall 6, and the vertical wall 6 has a test port communicating with the placement slot 21. The downward pressure drive component 71 is fixedly disposed on the vertical wall 6, and the output end of the downward pressure drive component 71 is connected to a downward pressure block 72, which is positioned corresponding to the placement slot 21. The downward pressure drive component 71 can be a cylinder, a linear push rod, or other drive component. The conductive block 5 can be a copper block, etc.

[0056] To facilitate operation by testing personnel, the base 2 is also provided with a wire groove 22, one end of which is connected to the placement groove 21. Optionally, the base 2 is provided with a mounting groove 23, and the conductive block 5 is disposed in the mounting groove 23. The other end of the wire groove 22 is connected to the mounting groove 23. The top surface of the conductive block 5 is lower than or flush with the bottom surface of the wire groove 22. Of course, due to manufacturing errors, assembly errors, and other factors, the top surface of the conductive block 5 may be slightly higher than the bottom surface of the wire groove 22.

[0057] To facilitate the processing and manufacturing of the test fixture, in this embodiment, the base 2 includes a main body 24 and a mounting body 25. The mounting body 25 is disposed in the mounting groove 23, and the conductive block 5 is disposed on the mounting body 25. This makes it easier to manufacture a test fixture in which the top surface of the conductive block 5 is lower than the bottom surface of the wire groove 22.

[0058] In one or more embodiments, the rotating pressure block 3 is provided with an aluminum block 8, the aluminum block 8 having an adhesive surface 81, and double-sided adhesive 9 is provided on the adhesive surface 81. The conductive foam 4 is bonded to the aluminum block 8 via the double-sided adhesive 9. Multiple tests have verified that, compared to providing a boss on the rotating pressure block 3 for mounting the double-sided adhesive 9, adding an aluminum block 8 for mounting the double-sided adhesive 9 better maintains the flatness of the double-sided adhesive 9, thereby extending the service life of the conductive foam 4.

[0059] The number of conductive blocks 5 and the number of conductive foam 4 are two each, and the conductive blocks 5 and the conductive foam 4 are arranged in a one-to-one correspondence.

[0060] Preferably, the base 2 is provided with an insulating partition 26, which is located between the two conductive blocks 5, thereby ensuring that the two conductive blocks 5 are insulated from each other. In this embodiment, the insulating partition 26 is provided on the mounting body 25, and preferably the insulating partition 26 and the mounting body 25 are integrally formed.

[0061] Optionally, the top of the insulating partition 26 is set higher than the top surface of the base 2, and the rotating pressure block 3 is provided with a clearance groove 31 for avoiding the insulating partition 26.

[0062] In some embodiments, the other end of the rotating pressure block 3 is provided with a first magnetic suction member 32, and the base 2 is provided with a second magnetic suction member 27 for magnetically engaging with the first magnetic suction member 32. When the first magnetic suction member 32 is a magnet, the second magnetic suction member 27 is an iron block or a magnet; when the first magnetic suction member 32 is an iron block, the second magnetic suction member 27 is a magnet.

[0063] 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 testing fixture for a miniature loudspeaker module, characterized in that, include A base, wherein the base is provided with a slot for placing a conductive block, the conductive block being connected to an external power source; The rotating pressure block has one end rotatably connected to the base. Conductive foam is disposed on the rotating pressure block and is positioned corresponding to the conductive block.

2. The micro loudspeaker module testing fixture according to claim 1, characterized in that, The base is also provided with a wire groove, one end of which is connected to the placement groove.

3. The micro loudspeaker module testing fixture according to claim 2, characterized in that, The base is provided with a mounting groove, the conductive block is disposed in the mounting groove, and the other end of the wire groove is connected to the mounting groove.

4. The micro loudspeaker module testing fixture according to claim 3, characterized in that, The base includes a main body and a mounting body, the mounting body is disposed in the mounting groove, and the conductive block is disposed on the mounting body.

5. The micro loudspeaker module testing fixture according to claim 1, characterized in that, An aluminum block is provided on the rotating pressure block. The aluminum block has an adhesive surface and double-sided adhesive is provided on the adhesive surface. The conductive foam is bonded to the aluminum block through the double-sided adhesive.

6. The micro loudspeaker module testing fixture according to claim 1, characterized in that, The number of conductive blocks and the number of conductive foam are both two, and the conductive blocks and the conductive foam are arranged in a one-to-one correspondence.

7. The micro loudspeaker module testing fixture according to claim 6, characterized in that, An insulating partition is provided on the base, and the insulating partition is located between the two conductive blocks.

8. The micro loudspeaker module testing fixture according to claim 7, characterized in that, The top of the insulating partition is positioned higher than the top surface of the base, and the rotating pressure block is provided with a clearance groove for avoiding the insulating partition.

9. The micro loudspeaker module testing fixture according to claim 1, characterized in that, The other end of the rotating pressure block is provided with a first magnetic suction element, and the base is provided with a second magnetic suction element for magnetically engaging with the first magnetic suction element.

10. The micro loudspeaker module testing fixture according to claim 1, characterized in that, It also includes a vertical wall and a downward driving component disposed on the vertical wall. The base is fixedly connected to the vertical wall. The vertical wall has a test port that communicates with the placement slot. The downward driving component is fixedly disposed on the vertical wall. The output end of the downward driving component is connected to a downward pressing block. The downward pressing block is disposed corresponding to the placement slot.