A loudspeaker module simulation test tool

Abstract

The utility model discloses a loudspeaker module simulation test frock, including base, apron and pressure regulating component, be equipped with the placement groove for placing the loudspeaker module of waiting for testing on the base, the one end of apron is rotatablely connected with the base, the pressure regulating component includes elastic part and liftable and is set up the floating pressure rod on the apron, and elastic part connects floating pressure rod and apron, to drive floating pressure rod and press the screw mounting hole area of loudspeaker module of waiting for testing, and the nut of floating pressure rod screw thread connection has the contact apron. This loudspeaker module simulation test frock can realize the accurate simulation and dynamic regulation to loudspeaker module locking force, and effectively solved the industry pain point that the prior art cannot quantize the evaluation locking force influence on the performance of sounding. This loudspeaker module simulation test frock can apply the contact pressure of continuously adjustable in screw mounting hole area, and truly reproduces the stress state that loudspeaker module forms when the whole machine assembly because of different locking torque.

Description

Technical Field

[0001] This utility model relates to the field of tooling and fixture technology, and in particular to a speaker module simulation testing tooling. Background Technology

[0002] Speaker modules are widely used in portable electronic devices such as mobile phones, laptops, and hearing aids. With the rapid development of these portable electronic devices, the requirements for speaker modules used in them are also increasing.

[0003] Speaker modules are often installed into electronic devices by screwing them in. The tightening force of the speaker module affects the sound output of the electronic device. Currently, there is a lack of a speaker module simulation test fixture that can provide guidance on the appropriate tightening force. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a speaker module simulation test fixture that can provide guidance on the magnitude of the speaker module locking force.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: a speaker module simulation test fixture, including a base, a cover plate, and a pressure adjustment assembly. The base is provided with a placement slot for placing the speaker module to be tested. One end of the cover plate is rotatably connected to the base. The pressure adjustment assembly includes an elastic element and a floating pressure rod that can be raised and lowered through the cover plate. The elastic element connects the floating pressure rod to the cover plate to drive the floating pressure rod to press against the screw mounting hole area of ​​the speaker module to be tested. The floating pressure rod is threadedly connected to a nut that abuts against the cover plate.

[0006] Furthermore, the cover plate is provided with a through hole for the floating pressure rod. The through hole includes a small diameter section and a large diameter section arranged coaxially. The small diameter section connects to the top surface of the cover plate, and the large diameter section connects to the bottom surface of the cover plate. The nut abuts against the top surface of the cover plate, and at least a portion of the elastic element is housed within the large diameter section.

[0007] Furthermore, the elastic element is a spring, a sheet, or a rubber sleeve.

[0008] Furthermore, a buffer pad is provided at the bottom end of the floating pressure rod.

[0009] Furthermore, the cover plate is also provided with test probes for powering the speaker module under test.

[0010] Furthermore, the other end of the cover plate is provided with a first magnetic attractor, and the base is provided with a second magnetic attractor that magnetically engages with the first magnetic attractor.

[0011] Furthermore, the other end of the cover plate is an operating section.

[0012] Furthermore, the base is also provided with a first elbow clamp, which is used to press the cover plate.

[0013] Furthermore, it also includes a front cavity pipe, a fixing plate, and a fixing block disposed on the fixing plate. The fixing plate is provided with a test port, and the fixing block is provided with a second elbow clamp. The second elbow clamp presses against the base so that the base abuts against the fixing plate. The front cavity pipe is connected to the fixing plate and communicates with the test port. The front cavity pipe is used to connect to the sound outlet of the speaker module to be tested.

[0014] Furthermore, the front cavity channel is detachably connected to the fixing plate.

[0015] The beneficial effects of this utility model are as follows: This speaker module simulation testing fixture can accurately simulate and dynamically adjust the locking force of the speaker module, effectively solving the industry pain point that existing technologies cannot quantify and evaluate the impact of locking force on sound performance. Specifically, this speaker module simulation testing fixture adopts a mechanical structure with elastic elements and floating pressure rods, which can apply continuously adjustable contact pressure in the screw mounting hole area, realistically replicating the stress state of the speaker module under different locking torques during assembly. This provides engineers with performance change data under different locking force conditions, guiding the optimization of structural design and assembly parameters. At the same time, since the pressure application position is precisely limited to the screw mounting hole area rather than the diaphragm vibration area, it effectively avoids interference with the stiffness of the speaker module vibration system caused by surface contact or improper pressure of traditional fixtures, ensuring the authenticity and reliability of the test data, and accurately reflecting the influence of locking force changes on key acoustic parameters such as frequency response and resonant frequency. Furthermore, this speaker module simulation test fixture achieves a self-locking function after pressure setting through the threaded engagement of the nut and the floating pressure rod, ensuring pressure stability during testing. Its overall structure is simple and compact, and it is easy to operate, requiring no complex electrical control system to achieve pressure adjustment. This significantly improves testing efficiency and repeatability, enabling R&D personnel to quickly complete performance benchmarking and extreme condition assessment under multiple pressure conditions. It helps identify performance degradation or reliability risks caused by improper locking force in advance during the product design phase, reducing the number of iterations for subsequent installation verification and shortening the product development cycle. Attached Figure Description

[0016] Figure 1 Schematic diagram of the speaker module simulation test fixture Figure 1 ; Figure 2 for Figure 1 A cross-sectional view of the structure shown; Figure 3This is a schematic diagram of the pressure regulating component. Figure 4 Schematic diagram of the speaker module simulation test fixture Figure 2 ; Figure 5 This is a schematic diagram of part of the structure of the speaker module simulation test fixture.

[0017] Label Explanation: 1. Base; 11. Placement slot; 2. Cover plate; 21. Test probe; 22. Operating part; 23. Perforation; 231. Small diameter section; 232. Large diameter section; 3. Pressure regulating assembly; 31. Elastic element; 32. Floating pressure rod; 33. Buffer pad; 34. Nut; 4. First elbow clamp; 51. Fixing plate; 511. Test port; 52. Fixing block; 53. Second elbow clamp; 6. Anterior cavity passage; 7. Speaker module to be tested; 71. Screw mounting holes. Detailed Implementation

[0018] 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.

[0019] Please refer to Figures 1 to 5 A speaker module simulation test fixture includes a base 1, a cover plate 2, and a pressure adjustment assembly 3. The base 1 is provided with a placement slot 11 for placing a speaker module 7 to be tested. One end of the cover plate 2 is rotatably connected to the base 1. The pressure adjustment assembly 3 includes an elastic element 31 and a floating pressure rod 32 that can be raised and lowered through the cover plate 2. The elastic element 31 connects the floating pressure rod 32 to the cover plate 2 to drive the floating pressure rod 32 to press against the screw mounting hole 71 area of ​​the speaker module 7 to be tested. The floating pressure rod 32 is threadedly connected to a nut 34 that abuts against the cover plate 2.

[0020] As described above, the beneficial effects of this utility model are as follows: The speaker module simulation test fixture applies adjustable pressure to the screw hole area through the elastic element 31 and the floating pressure rod 32, realistically simulating the assembly stress of the entire machine and providing quantitative data for optimizing the locking force parameters. The pressure is applied only to the screw hole position and not the diaphragm area, avoiding interference with the vibration system and ensuring that the acoustic test data truly reflects the impact of the locking force on key parameters. The self-locking structure of the nut 34 ensures stable pressure. The overall structure is simple and easy to operate, and multi-condition testing can be completed efficiently without complex electrical control, which helps to identify performance risks in advance and shorten the product development cycle.

[0021] Furthermore, the cover plate 2 is provided with a through hole 23 for the floating pressure rod 32. The through hole 23 includes a small diameter section 231 and a large diameter section 232 arranged coaxially. The small diameter section 231 communicates with the top surface of the cover plate 2, and the large diameter section 232 communicates with the bottom surface of the cover plate 2. The nut 34 abuts against the top surface of the cover plate 2, and at least a portion of the elastic element 31 is housed within the large diameter section 232.

[0022] As described above, by dividing the perforation 23 into a small diameter section 231 and a large diameter section 232, at least a portion of the elastic element 31 is housed within the large diameter section 232. This achieves both radial limiting of the elastic element 31 and stable locking of the nut 34 against the top surface of the cover plate 2. The overall structure is more compact, effectively preventing the elastic element 31 from shifting laterally or coming out when under pressure, thus improving the stability and reliability of pressure regulation.

[0023] Furthermore, the elastic element 31 is a spring, a sheet, or a rubber sleeve.

[0024] Furthermore, a buffer pad 33 is provided at the bottom end of the floating pressure rod 32.

[0025] As described above, adding a buffer pad 33 at the bottom of the floating pressure rod 32 can buffer the direct contact between the floating pressure rod 32 and the screw mounting hole 71 area, prevent rigid impact from causing damage to the module shell or the surrounding structure of the screw mounting hole 71, and at the same time make the pressure transmission more uniform, avoid local stress concentration, and improve the safety of the testing process.

[0026] Furthermore, the cover plate 2 is also provided with a test probe 21 for supplying power to the speaker module 7 under test.

[0027] As described above, by integrating the test probe 21 on the cover plate 2, electrical connection can be completed while pressure is applied when the cover plate 2 is closed, without the need for additional wiring operations. This simplifies the testing process, reduces poor contact or positional interference caused by manual wiring, and significantly improves efficiency and consistency during batch testing.

[0028] Furthermore, the other end of the cover plate 2 is provided with a first magnetic attractor, and the base 1 is provided with a second magnetic attractor that magnetically engages with the first magnetic attractor.

[0029] As described above, by utilizing the magnetic attraction between the first and second magnetic components, the cover plate 2 can be quickly opened and closed and temporarily fixed, facilitating one-handed operation or quick loading and unloading of the module under test, shortening the auxiliary time during repeated testing, and improving the overall testing cycle and user experience.

[0030] Furthermore, the other end of the cover plate 2 is an operating part 22.

[0031] As can be seen from the above description, setting the other end of the cover plate 2 as the operating part 22 provides a clear force application position for manual opening and closing, which conforms to ergonomic design, makes it easy for operators to accurately control the movement of the cover plate 2, reduces the risk of misoperation, and further improves the ease of operation.

[0032] Furthermore, the base 1 is also provided with a first elbow clamp 4, which is used to press the cover plate 2.

[0033] As can be seen from the above description, the base 1 is equipped with a first elbow clamp 4 to apply additional clamping force to the cover plate 2, which can effectively resist the loosening of the cover plate 2 caused by external vibration or the reaction force of the elastic element 31 during the test, and ensure that the pressure adjustment component 3 and the speaker module under test maintain constant contact, thereby improving the stability under long-term testing or high-pressure conditions.

[0034] Furthermore, it also includes a front cavity pipe 6, a fixing plate 51, and a fixing block 52 disposed on the fixing plate 51. The fixing plate 51 is provided with a test port 511, and the fixing block 52 is provided with a second elbow clamp 53. The second elbow clamp 53 presses against the base 1 so that the base 1 abuts against the fixing plate 51. The front cavity pipe 6 connects to the fixing plate 51 and communicates with the test port 511. The front cavity pipe 6 is used to connect to the sound outlet of the speaker module 7 to be tested.

[0035] As described above, by configuring the front cavity pipe 6, the fixing plate 51 and the fixing block 52, and using the second elbow clamp 53 to press and fix the base 1, the front cavity pipe 6 is connected to the sound outlet of the speaker module. This can simulate the acoustic load and leakage conditions of the front cavity of the whole machine, combine pressure testing with acoustic environment simulation, and significantly improve the correlation between test data and actual installed performance.

[0036] Furthermore, the front cavity pipe 6 is detachably connected to the fixing plate 51.

[0037] As described above, the front cavity pipe 6 and the fixing plate 51 are detachably connected, which makes it easy to quickly replace the front cavity pipe 6 of the corresponding specification according to the front cavity structure of the target model without replacing the entire tooling body. This greatly improves the tooling's adaptability and reusability to different product models, and reduces the tooling cost and changeover time for parallel testing of multiple projects.

[0038] Please refer to Figures 1 to 5 The first embodiment of this utility model is: a speaker module simulation test fixture, used to assist in testing the acoustic performance of the speaker module under different locking forces. The speaker module includes a module housing and a speaker unit disposed in the module housing. The module housing is provided with screw mounting holes 71. In the complete electronic device, the speaker module is installed and fixed by screws passing through the screw mounting holes 71.

[0039] The speaker module simulation test includes a base 1, a cover plate 2, and a pressure adjustment assembly 3. The base 1 has a placement slot 11 for placing the speaker module 7 to be tested. One end of the cover plate 2 is rotatably connected to the base 1. The cover plate 2 has a test probe 21 for supplying power to the speaker module 7 to be tested. The other end of the cover plate 2 is an operating part 22, through which the operator controls the opening and closing of the cover plate 2. The pressure adjustment assembly 3 includes an elastic element 31 and a floating pressure rod 32 that can be raised and lowered through the cover plate 2. The elastic element 31 connects the floating pressure rod 32 to the cover plate 2 to drive the floating pressure rod 32 to press against the screw mounting hole 71 area of ​​the speaker module 7 to be tested. The floating pressure rod 32 is threadedly connected to a nut 34 that abuts against the cover plate 2.

[0040] In use, the operator tightens or loosens the nut 34 to adjust the elastic modulus of the pressure regulating component 3, thereby adjusting the pressure applied by the floating pressure rod 32 to the screw mounting hole 71 area on the module housing.

[0041] In detail, the cover plate 2 is provided with a through hole 23 for the floating pressure rod 32. In this embodiment, the through hole 23 includes a small diameter section 231 and a large diameter section 232 arranged coaxially. The small diameter section 231 communicates with the top surface of the cover plate 2, and the large diameter section 232 communicates with the bottom surface of the cover plate 2. The nut 34 abuts against the top surface of the cover plate 2. At least a portion of the elastic element 31 is housed in the large diameter section 232. The elastic element 31 is a spring, a sheet, a rubber sleeve, or other reset structure.

[0042] To prevent the module housing from being scratched or abraded by the pressure part, preferably, the bottom end of the floating pressure rod 32 is provided with a buffer pad 33, and the material of the buffer pad 33 can be a rubber pad or the like.

[0043] Optionally, the other end of the cover plate 2 is provided with a first magnetic attractor, and the base 1 is provided with a second magnetic attractor that magnetically engages with the first magnetic attractor. When the first magnetic attractor is a magnet, the second magnetic attractor is a magnet or an iron block; when the first magnetic attractor is an iron block, the second magnetic attractor is a magnet.

[0044] In one or more embodiments, the base 1 is further provided with a first elbow clamp 4, which is used to press the cover plate 2.

[0045] In a preferred embodiment, the speaker module testing fixture further includes a front cavity pipe 6, a fixing plate 51, and a fixing block 52 disposed on the fixing plate 51. The fixing plate 51 has a test port 511, and the fixing block 52 has a second elbow clamp 53. The second elbow clamp 53 presses against the base 1 so that the base 1 abuts against the fixing plate 51. The front cavity pipe 6 connects to the fixing plate 51 and communicates with the test port 511. The front cavity pipe 6 is used to connect to the sound outlet of the speaker module 7 to be tested. More preferably, the front cavity pipe 6 is detachably connected to the fixing plate 51. In actual testing, the operator can select the front cavity pipe 6 that is compatible with the speaker module 7 to be tested.

[0046] 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 speaker module simulation test fixture, characterized in that, include A base, wherein the base is provided with a placement slot for placing the speaker module to be tested; A cover plate, one end of which is rotatably connected to the base; A pressure regulating assembly includes an elastic element and a floating pressure rod that is vertically and vertically mounted on the cover plate. The elastic element connects the floating pressure rod to the cover plate to drive the floating pressure rod to press against the screw mounting hole area of ​​the speaker module under test. The floating pressure rod is threadedly connected to a nut that abuts against the cover plate.

2. The speaker module simulation test fixture according to claim 1, characterized in that, The cover plate is provided with a through hole for the floating pressure rod. The through hole includes a small diameter section and a large diameter section arranged coaxially. The small diameter section connects to the top surface of the cover plate, and the large diameter section connects to the bottom surface of the cover plate. The nut abuts against the top surface of the cover plate, and at least a portion of the elastic element is housed within the large diameter section.

3. The speaker module simulation test fixture according to claim 1, characterized in that, The elastic element is a spring, a sheet, or a rubber sleeve.

4. The speaker module simulation test fixture according to claim 1, characterized in that, The bottom end of the floating pressure bar is equipped with a buffer pad.

5. The speaker module simulation test fixture according to claim 1, characterized in that, The cover plate is also equipped with test probes for powering the speaker module under test.

6. The speaker module simulation test fixture according to claim 1, characterized in that, The other end of the cover plate is provided with a first magnetic attractor, and the base is provided with a second magnetic attractor that magnetically engages with the first magnetic attractor.

7. The speaker module simulation test fixture according to claim 1, characterized in that, The other end of the cover plate is the operating section.

8. The speaker module simulation test fixture according to claim 1, characterized in that, The base is also provided with a first elbow clamp, which is used to press the cover plate.

9. The speaker module simulation test fixture according to claim 1, characterized in that, It also includes a front cavity pipe, a fixing plate, and a fixing block disposed on the fixing plate. The fixing plate is provided with a test port, and the fixing block is provided with a second elbow clamp. The second elbow clamp presses against the base so that the base abuts against the fixing plate. The front cavity pipe is connected to the fixing plate and communicates with the test port. The front cavity pipe is used to connect to the sound outlet of the speaker module to be tested.

10. The speaker module simulation test fixture according to claim 9, characterized in that, The front cavity channel is detachably connected to the fixed plate.

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