Micro-speaker listening tool

Abstract

The utility model discloses a kind of miniature loudspeaker listening tool, including support, bottom plate, mounting bracket and top resistance driving element, the bottom plate with The support is rotatably connected, the bottom plate is equipped with placing groove, the bottom surface of the placing groove is equipped with sound outlet;The mounting bracket is equipped with resistance driving element, the output end of the resistance driving element is connected with the pressure block corresponding to the placing groove setting;The top resistance driving element is used to top resistance the bottom plate to drive the bottom plate to rotate, to make the bottom plate switch between horizontal state and inclined state. By top resistance driving element drive bottom plate switch between horizontal and inclined two states, bottom plate is horizontal when taking and placing material, placing groove opening is upward, operator does not need to rely on feeling to directly view, place miniature loudspeaker, completely eliminate the diaphragm or middle paste and groove wall knock, scratch hidden danger caused by inclined blind.

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 present invention adopts the following technical solution: a miniature loudspeaker listening fixture, comprising a bracket, a base plate, a mounting frame, and a top-pressing drive component. The base plate is rotatably connected to the bracket, and the base plate is provided with a placement groove, the bottom surface of which is provided with a sound outlet. The mounting frame is provided with a pressing drive component, the output end of which is connected to a pressure block corresponding to the placement groove. The top-pressing drive component is used to press against the base plate to drive the base plate to rotate, thereby allowing the base plate to switch between a horizontal state and an inclined state.

[0005] Furthermore, the bracket includes a support plate and a T-shaped column disposed on the support plate, with one end of the top of the T-shaped column rotatably connected to the base plate.

[0006] Furthermore, there are two T-shaped columns, which are arranged opposite to each other.

[0007] Furthermore, the support plate is also provided with a fixing frame, and the top-abutting drive component is mounted on the fixing frame.

[0008] Furthermore, the top-abutting drive member is offset from the central axis of the base plate.

[0009] Furthermore, the rotation angle range of the base plate is 0°-90°.

[0010] Furthermore, the rotation angle range of the base plate is 0°-80°.

[0011] Furthermore, the base plate includes a fixed plate with a window and a lower template that can be detachably installed at the window, and the placement groove and the sound outlet are both provided on the lower template.

[0012] Furthermore, the top-pushing drive 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: the bottom plate is switched between horizontal and inclined states by the top-abutting drive component. When picking up and placing materials, the bottom plate is horizontal with the slot opening facing upwards. The operator can directly look at and place the miniature speaker without relying on feeling, completely eliminating the risk of diaphragm or mid-mount being bumped or scratched by the slot wall due to blind placement. When listening, the bottom plate is tilted under the drive of the top-abutting drive component, with the sound outlet facing the tester's ear, maintaining the original optimal listening angle. No hand-held operation is required, balancing efficiency, accuracy, and test consistency. The entire picking-up-listening process is simple and safe. Without adding extra complex structures, it solves the problems of easy product damage, inconvenient operation, and limited listening posture. Moreover, this listening fixture can be obtained by modifying existing listening fixtures, making it easy to promote. 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 Schematic diagram of the overall structure of the miniature loudspeaker listening fixture Figure 1 ; Figure 4 A schematic diagram of the lower template in a miniature loudspeaker listening fixture; Figure 5 This is a schematic diagram of the pressure block of the lower template in a miniature loudspeaker listening fixture.

[0016] Label Explanation: 1. Base plate; 11. Sound outlet; 12. Placement slot; 13. Fixing plate; 14. Lower template; 2. Bracket; 21. Support plate; 22. T-shaped column; 3. Mounting bracket; 4. Top-stop driving component; 5. Pressure-driven components; 6. Pressing blocks; 7. Test probe; 8. Fixture. 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 bracket 2, a base plate 1, a mounting frame 3, and a top-pressing drive component 4. The base plate 1 is rotatably connected to the bracket 2. The base plate 1 is provided with a placement groove 12, and the bottom surface of the placement groove 12 is provided with a sound outlet 11. The mounting frame 3 is provided with a pressing drive component 5, and the output end of the pressing drive component 5 is connected to a pressure block 6 corresponding to the placement groove 12. The top-pressing drive component 4 is used to press against the base plate 1 to drive the base plate 1 to rotate, thereby allowing the base plate 1 to switch between a horizontal state and an inclined state.

[0019] As can be seen from the above description, the beneficial effects of this utility model are as follows: the bottom plate 1 is switched between horizontal and inclined states by the top-pressing drive component 4. When picking up and placing materials, the bottom plate 1 is horizontal and the opening of the placement slot 12 faces upward. The operator can directly look at and place the miniature speaker without relying on feeling, completely eliminating the risk of collision and scratching of the diaphragm or center plate with the slot wall caused by blind placement with inclination. When listening, the bottom plate 1 is tilted under the drive of the top-pressing drive component 4, and the sound outlet 11 is directly facing the tester's ear, maintaining the original optimal listening angle. There is no need to hold it, which takes into account efficiency, accuracy and test consistency. The whole picking-up-listening process is simple and safe. Without adding extra complex structures, it solves the problems of easy product damage, inconvenient operation and limited listening posture. Moreover, this listening fixture can be obtained by modifying existing listening fixtures and is easy to promote.

[0020] Furthermore, the bracket 2 includes a support plate 21 and a T-shaped column 22 disposed on the support plate 21, with one end of the top of the T-shaped column 22 being rotatably connected to the base plate 1.

[0021] As can be seen from the above description, the T-shaped column 22 can provide stable support for the base plate 1 in a horizontal state, and requires less material to manufacture.

[0022] Furthermore, there are two T-shaped columns 22, which are arranged opposite to each other.

[0023] As can be seen from the above description, the double T-shaped columns 22 are symmetrically arranged on the base plate 1, which can provide more stable support for the base plate 1 in a horizontal state.

[0024] Furthermore, the support plate 21 is also provided with a fixing frame 8, and the top-abutting drive member 4 is installed on the fixing frame 8.

[0025] As described above, the fixed frame 8 integrates the top drive component 4 directly onto the support plate 21. The driving force acts on the base plate 1 along the shortest path, without the need for an additional base or extended cantilever. The entire fixture can be "transported as a whole and used immediately upon landing," reducing the time required for re-leveling the production line.

[0026] Furthermore, the top-abutting drive member 4 is positioned off-center from the central axis of the base plate 1.

[0027] As can be seen from the above description, the setting of the top-stopping drive component 4 will not affect the tester's ability to hear and pick up / place the miniature speaker under test.

[0028] Furthermore, the rotation angle range of the base plate 1 is 0°-90°.

[0029] As can be seen from the above description, the 0°–90° turning angle range covers the two extreme states of “completely horizontal” and “completely vertical”.

[0030] Furthermore, the rotation angle range of the base plate 1 is 0°-80°.

[0031] Furthermore, the base plate 1 includes a fixed plate 13 with a window and a lower template 14 that can be detachably installed at the window. The placement groove 12 and the sound outlet 11 are both provided on the lower template 14.

[0032] As can be seen from the above description, the lower template 14 can be quickly replaced. Different batches of miniature speakers to be tested only need to replace the lower template 14 with the corresponding placement slot 12 and sound outlet 11. The fixing plate 13, the pressure driving component 5, and the bracket 2 of the base plate 1 are all reused, realizing quick model change.

[0033] Furthermore, the top-stopping drive component 4 is a cylinder, a linear push rod, or a hydraulic rod.

[0034] As described above, cylinders, linear actuators, and hydraulic rods are all standard outsourced parts. Enterprises can directly select the appropriate parts based on the available air, power, or hydraulic power sources on site, without the need to manufacture non-standard drives themselves.

[0035] Furthermore, the pressure block 6 is provided with a test probe 7, which is used to supply power to the miniature speaker to be tested located in the placement slot 12.

[0036] As described above, the test probe 7 is built into the pressure block 6. When the pressure block 6 is pressed down, it completes two actions: "acoustic sealing + electrical conduction", eliminating the need for additional wiring steps and shortening the cycle time. The probe and the pressure block 6 move up and down synchronously, avoiding the relative displacement caused by the rotation of the base plate 1 of the traditional fixed probe. This completely eliminates the risk of pin misalignment, poor contact or scratching of the solder pads, and improves test stability and product yield.

[0037] 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.

[0038] The miniature loudspeaker listening fixture includes a bracket 2, a base plate 1, a mounting frame 3, and a top-pressing drive component 4. The base plate 1 is rotatably connected to the bracket 2. The base plate 1 has a placement slot 12 for placing the miniature loudspeaker to be tested. The bottom surface of the placement slot 12 has a sound outlet 11, through which the sound generated by the miniature loudspeaker to be tested is transmitted. The mounting frame 3 is mounted on the base plate 1 and has a pressing drive component 5. The output end of the pressing drive component 5 is connected to a component corresponding to the placement slot 12. The pressure block 6 is used to press against the micro loudspeaker under test in the placement slot 12. The pressure block 6 is provided with a test probe 7, which is used to supply power to the micro loudspeaker under test in the placement slot 12. The top-pressing drive 4 is used to press against the base plate 1 to drive the base plate 1 to rotate, thereby switching the base plate 1 between a horizontal state and an inclined state. During the listening test, the top-pressing drive 4 presses against the base plate 1 to tilt the base plate 1, and the tester's ear is directly facing the sound outlet 11 and about 10 centimeters away from the sound outlet 11 to listen to the sound. When the micro loudspeaker under test is picked up or placed, the top-pressing drive 4 is reset, and the base plate 1 changes to a horizontal state so that the tester can directly look at and place the micro loudspeaker under test flat, thereby reducing the probability of scratches or damage to the micro loudspeaker under test during placement.

[0039] The pressing drive component 5 is a cylinder, a linear push rod, or a hydraulic rod, and the pushing drive component 4 is a cylinder, a linear push rod, or a hydraulic rod.

[0040] In this embodiment, the bracket 2 includes a support plate 21 and a T-shaped column 22 disposed on the support plate 21. One end of the top of the T-shaped column 22 is rotatably connected to the base plate 1. Optionally, there are two T-shaped columns 22, which are arranged opposite to each other, and the sound outlet 11 is disposed in the area between the two T-shaped columns 22.

[0041] In detail, the support plate 21 is also provided with a fixing frame 8, and the top abutment drive member 4 is installed on the fixing frame 8.

[0042] To avoid interference with the operation of the test personnel by the top-stopping drive component 4, it is preferable that the top-stopping drive component 4 is set off from the central axis of the base plate 1.

[0043] The rotation angle range of the base plate 1 is 0°-90°, preferably 0°-80°.

[0044] To improve the versatility of the listening fixture, the base plate 1 includes a fixed plate 13 with a window and a lower template 14 that can be detachably installed at the window. The mounting bracket 3 is disposed on the fixed plate 13. The fixed plate 13 is rotatably connected to the bracket 2. The placement groove 12 and the sound outlet 11 are both disposed on the lower template 14. Correspondingly, the pressure block 6 is detachably connected to the pressure driving component 5.

[0045] 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 rotatably connected to the bracket, is provided with a placement groove, and the bottom surface of the placement groove is provided with a sound outlet; The mounting bracket is provided with a pressing drive component, and the output end of the pressing drive component is connected to a pressure block corresponding to the placement slot. A push-off drive member is used to push against the base plate to drive the base plate to rotate, thereby switching the base plate between a horizontal state and an inclined state.

2. The miniature loudspeaker listening fixture according to claim 1, characterized in that, The bracket includes a support plate and a T-shaped column disposed on the support plate, with one end of the top of the T-shaped column rotatably connected to the base plate.

3. The miniature loudspeaker listening fixture according to claim 2, characterized in that, The number of T-shaped columns is two, and the two T-shaped columns are arranged opposite to each other.

4. The miniature loudspeaker listening fixture according to claim 2, characterized in that, The support plate is also provided with a fixing frame, and the top-abutting drive component is installed on the fixing frame.

5. The miniature loudspeaker listening fixture according to claim 1, characterized in that, The top-abutting drive component is offset from the central axis of the base plate.

6. The miniature loudspeaker listening fixture according to claim 1, characterized in that, The rotation angle range of the base plate is 0°-90°.

7. The miniature loudspeaker listening fixture according to claim 6, characterized in that, The rotation angle range of the base plate is 0°-80°.

8. The miniature loudspeaker listening fixture according to claim 1, characterized in that, The base plate includes a fixed plate with a window and a lower template that can be detachably installed at the window. The placement groove and the sound outlet are both located on the lower template.

9. The miniature loudspeaker listening fixture according to claim 1, characterized in that, The top-stopping drive 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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