Miniature loudspeaker test tool

Abstract

The utility model discloses a miniature loudspeaker test tool, which comprises a seat body, a pressing plate and a sliding block, the seat body is provided with a placing groove and a front cavity which are communicated with each other, the placing groove is arranged at one side of the seat body, the other side of the seat body is provided with an adjusting hole communicated with the front cavity, and the bottom of the seat body is provided with a sound outlet communicated with the front cavity; the pressing plate is located on one side of the base body and corresponds to the containing groove. The sliding block is arranged in the adjusting hole in a sliding mode and blocks the adjusting hole. The miniature loudspeaker testing tool is novel in structure, a tester can increase or reduce the total volume of the front cavity only by adjusting the position of the sliding block in the adjusting hole, so that the performance of the miniature loudspeaker matched with the front cavities with different volumes is tested, the manufacturing cost of the tool is greatly saved, the testing efficiency is improved, and the testing efficiency is improved. And the operation of testers is very simple and convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of tooling fixtures, in particular to a micro-speaker test tooling fixture. Background Art

[0002] With the popularization of mobile devices such as smart phones, more and more users hope to improve the sound quality of the devices, and the requirements for the performance of micro-speakers are also getting higher and higher. Therefore, in the production process, a micro-speaker test tooling fixture is needed to test the performance of micro-speakers.

[0003] The micro-speaker test tooling fixture includes a seat body and a pressing plate. A chamber is formed at the boundary between the pressing plate and the seat body. The micro-speaker to be tested is placed in the chamber and divides the chamber into a front chamber and a rear chamber. The seat body has a sound outlet communicating with the front chamber. In the prior art, the total volume of the front chamber on the micro-speaker test tooling fixture cannot be adjusted. If it is necessary to test the performance of micro-speakers with different sizes of front chambers, multiple test tooling fixtures with different front chamber sizes need to be prepared, and the tooling parts need to be replaced multiple times during the test process, the operation is complex, and manufacturing multiple tooling parts will also increase the cost. Summary of the Utility Model

[0004] The technical problem to be solved by the utility model is to provide a micro-speaker test tooling fixture with an adjustable front chamber volume.

[0005] To solve the above technical problem, the technical solution adopted by the utility model is: a micro-speaker test tooling fixture, including:

[0006] A seat body, on which a placement groove and a front chamber are connected and communicated. The placement groove is arranged on one side of the seat body, an adjustment hole communicating with the front chamber is arranged on the other side of the seat body, and a sound outlet communicating with the front chamber is arranged at the bottom of the seat body;

[0007] A pressing plate, which is located on one side of the seat body and corresponds to the placement groove;

[0008] A sliding block, which can slide in the adjustment hole and block the adjustment hole.

[0009] Further, a quick clamp is arranged on one side of the seat body, and the quick clamp presses against the pressing plate to drive the pressing plate to approach the seat body.

[0010] Further, the other side of the seat body has a boss, the adjustment hole is arranged on the boss, a threaded hole communicating with the adjustment hole is arranged on the outer wall of the boss, and a pressing screw pressing against the sliding block is arranged at the threaded hole. The axis of the threaded hole is perpendicular to the sliding path of the sliding block.

[0011] Further, on the other side of the base body, there is a shaping slot, which is U-shaped or ring-frame-shaped, the shaping slot communicates with the bottom surface of the base body, and the shaping slot is arranged around the boss.

[0012] Further, the threaded hole is arranged on the bottom surface of the boss.

[0013] Further, the number of the threaded holes is multiple.

[0014] Further, on one side of the base body, there is also a positioning slot for positioning the pressing plate, the positioning slot communicates with the placing slot, and the placing slot is located between the front cavity and the positioning slot.

[0015] Further, on one side of the base body, there is also a pick-and-place slot communicating with the positioning slot.

[0016] Further, it further includes a baffle and a support block arranged on the baffle, the other side of the base body abuts against the support block, there is a limiting slot for limiting the base body on the baffle, and the bottom surface of the limiting slot has a window corresponding to the sound outlet.

[0017] Further, on the side of the support block close to the base body and / or on the wall surface of the limiting slot, there is an avoidance slot for avoiding the sliding block.

[0018] The beneficial effects of the present utility model are as follows: The structure of this micro-speaker testing tooling is novel. The tester only needs to adjust the position of the sliding block in the adjustment hole to increase or reduce the total volume of the front cavity, so as to test the performance of the micro-speaker when it is paired with front cavities of different volumes, which greatly saves the tooling manufacturing cost, improves the testing efficiency, and the operation of the tester is extremely simple. Description of the Drawings

[0019] Figure 1 It is a schematic structural diagram of the micro-speaker testing tooling according to the first embodiment of the present utility model;

[0020] Figure 2 It is a cross-sectional view of the micro-speaker testing tooling according to the first embodiment of the present utility model;

[0021] Figure 3 It is a schematic structural diagram of the micro-speaker testing tooling according to the second embodiment of the present utility model;

[0022] Figure 4 It is a cross-sectional view of the micro-speaker testing tooling according to the second embodiment of the present utility model.

[0023] Label Description:

[0024] 1. Base body; 11. Front cavity; 12. Adjustment hole; 13. Sound outlet; 14. Boss; 15. Threaded hole; 16. Shaping groove; 17. Positioning groove; 18. Pick-up and placement groove;

[0025] 2. Pressure plate; 21. Pressure probe; 22. Conductive probe;

[0026] 3. Slide block;

[0027] 4. Quick chuck;

[0028] 5. Baffle; 51. Limit groove;

[0029] 6. Support block;

[0030] 7. Avoidance groove;

[0031] 8. Micro-speaker to be tested. Detailed implementation mode

[0032] To describe in detail the technical content, achieved objectives and effects of the present utility model, the following is described in conjunction with the implementation modes and with reference to the accompanying drawings.

[0033] Please refer to Figures 1 to 4 , a micro-speaker test tooling, comprising:

[0034] Base body 1, on which a placement groove and a front cavity 11 are provided in communication, the placement groove is provided on one side of the base body 1, an adjustment hole 12 communicating with the front cavity 11 is provided on the other side of the base body 1, and a sound outlet 13 communicating with the front cavity 11 is provided at the bottom of the base body 1;

[0035] Pressure plate 2, which is located on one side of the base body 1 and corresponds to the placement groove;

[0036] Slide block 3, which is slidably arranged in the adjustment hole 12 and blocks the adjustment hole 12.

[0037] As can be seen from the above description, the beneficial effect of the present utility model is that: the structure of this micro-speaker test tooling is novel. The tester only needs to adjust the position of the slide block 3 in the adjustment hole 12 to increase or decrease the total volume of the front cavity 11, so as to test the performance of the micro-speaker when it is paired with front cavities 11 of different volumes, greatly saving the tooling manufacturing cost, improving the test efficiency, and the operation of the tester is extremely simple.

[0038] Furthermore, a quick chuck 4 is provided on one side of the base body 1, and the quick chuck 4 presses against the pressure plate 2 to drive the pressure plate 2 to approach the base body 1.

[0039] As can be seen from the above description, the quick chuck can make the pressure plate 2 better press against the micro-speaker 8 to be tested located in the placement groove.

[0040] Further, the other side of the base 1 has a boss 14, the adjustment hole 12 is provided on the boss 14, the outer wall of the boss 14 has a threaded hole 15 communicating with the adjustment hole 12, a pressing screw for pressing the sliding block 3 is provided at the threaded hole 15, and the axis of the threaded hole 15 is perpendicular to the sliding path of the sliding block 3.

[0041] As can be seen from the above description, the tester can lock the position of the sliding block 3 in the adjustment hole 12 through the pressing screw, thereby preventing the sliding block 3 from sliding unexpectedly, which is beneficial to ensuring the accuracy of the test results.

[0042] Further, a shaping groove 16 is provided on the other side of the base 1. The shaping groove 16 is U-shaped or ring-shaped, the shaping groove 16 communicates with the bottom surface of the base 1, and the shaping groove 16 is arranged around the boss 14.

[0043] As can be seen from the above description, the end face of the boss 14 does not need to protrude from the surface of the other side of the base 1. The forming method of the boss 14 is simple and fast, and it can provide convenience for the subsequent design of the support block 6.

[0044] Further, the threaded hole 15 is provided on the bottom surface of the boss 14.

[0045] As can be seen from the above description, arranging the threaded hole 15 on the bottom surface of the boss 14 can facilitate the tester to operate the pressing screw.

[0046] Further, the number of the threaded holes 15 is multiple.

[0047] As can be seen from the above description, using multiple pressing screws to lock the sliding block 3 can more effectively prevent the sliding block 3 from sliding unexpectedly in the adjustment hole 12.

[0048] Further, a positioning groove 17 for positioning the pressing plate 2 is further provided on one side of the base 1. The positioning groove 17 communicates with the placement groove, and the placement groove is located between the front cavity 11 and the positioning groove 17.

[0049] As can be seen from the above description, the existence of the positioning groove 17 facilitates the positioning and installation of the pressing plate 2.

[0050] Further, a pick-and-place groove 18 communicating with the positioning groove 17 is further provided on one side of the base 1.

[0051] As can be seen from the above description, the existence of the pick-and-place groove 18 can facilitate the tester to pick and place the pressing plate 2 from the base 1.

[0052] Further, it further includes a baffle 5 and a support block 6 provided on the baffle 5. The other side of the base 1 abuts against the support block 6. A limiting groove 51 for limiting the base 1 is provided on the baffle 5, and the bottom surface of the limiting groove 51 has a window corresponding to the sound outlet 13.

[0053] As can be seen from the above description, the baffle 5 can be regarded as a wall panel of a test speaker for testing.

[0054] Further, an avoidance groove 7 for avoiding the sliding block 3 is provided on one side of the support block 6 close to the base 1 and / or on the wall surface of the limiting groove 51.

[0055] As can be seen from the above description, the support block 6 and the baffle 5 will not shorten the sliding stroke of the sliding block 3, that is, will not reduce the adjustment range of the front cavity 11.

[0056] Embodiment 1

[0057] Please refer to Figure 1 and Figure 2 For Embodiment 1 of the present utility model: A micro-speaker test tooling includes a base 1, a pressing plate 2 and a sliding block 3. A placement groove and a front cavity 11 are provided on the base 1 and are communicated with each other. The placement groove is provided on one side of the base 1 and is used for placing a micro-speaker 8 to be tested. An adjustment hole 12 communicating with the front cavity 11 is provided on the other side of the base 1. A sound outlet 13 communicating with the front cavity 11 is provided at the bottom of the base 1. The pressing plate 2 is located on one side of the base 1 and corresponds to the placement groove. A pressure probe 21 and a conduction probe 22 are provided on the pressing plate 2. Among them, the pressure probe 21 corresponds to the placement groove to press the micro-speaker 8 monomer located in the placement groove, and the conduction probe 22 is used to supply power to the micro-speaker 8 located in the placement groove. The sliding block 3 is slidably arranged in the adjustment hole 12 and blocks the adjustment hole 12.

[0058] It is not difficult to understand that in this micro-speaker test tooling, the sum of the volume of the area of the adjustment hole 12 on the side of the sliding block 3 close to the placement groove and the volume of the front cavity 11 itself is the actual front cavity volume. Therefore, when the position of the sliding block 3 in the adjustment hole 12 changes, the actual front cavity volume will also change accordingly.

[0059] A quick clamp 4 is provided on one side of the base 1. The quick clamp 4 presses against the pressing plate 2 to drive the pressing plate 2 close to the base 1, so that the pressure probe 21 can effectively press the micro-speaker 8 to be tested to ensure the airtightness of the front cavity 11, thereby improving the accuracy of the test result.

[0060] On the other side of the base body 1, there is a boss 14. The adjustment hole 12 is provided on the boss 14. The outer wall of the boss 14 has a threaded hole 15 communicating with the adjustment hole 12. At the threaded hole 15, there is a pressing screw pressing against the sliding block 3. The axis of the threaded hole 15 is perpendicular to the sliding path of the sliding block 3.

[0061] In this embodiment, on the other side of the base body 1, there is a shaping groove 16. The shaping groove 16 is in a U shape or a ring frame shape. The shaping groove 16 communicates with the bottom surface of the base body 1. The shaping groove 16 is arranged around the boss 14.

[0062] For the convenience of the tester's operation, preferably, the threaded hole 15 is provided on the bottom surface of the boss 14.

[0063] To better lock the sliding block 3 in the adjustment hole 12, the number of the threaded holes 15 is multiple. In this embodiment, the number of the threaded holes 15 is two. That is to say, the sliding block 3 is pressed and locked by two pressing screws.

[0064] On one side of the base body 1, there is also a positioning groove 17 for positioning the pressing plate 2. The positioning groove 17 communicates with the placement groove. The placement groove is located between the front cavity 11 and the positioning groove 17. Preferably, on one side of the base body 1, there is also a pick-and-place groove 18 communicating with the positioning groove 17. In this embodiment, the pick-and-place groove 18 is located above the placement groove.

[0065] Embodiment Two

[0066] Please refer to Figure 3 and Figure 4 In Embodiment Two of the present utility model, which is a parallel technical solution to Embodiment One, the difference from Embodiment One is that: the micro speaker testing tooling further includes a baffle 5 and a support block 6 provided on the baffle 5. The other side of the base body 1 abuts against the support block 6. On the baffle 5, there is a limiting groove 51 for limiting the base body 1. The bottom surface of the limiting groove 51 has a window corresponding to the sound outlet 13 of the base body 1.

[0067] On one side of the support block 6 close to the base body 1 and / or on the wall surface of the limiting groove 51, there is an avoidance groove 7 for avoiding the sliding block 3. In this embodiment, a part of the avoidance groove 7 is located on the support block 6, and the other part of the avoidance groove 7 is located on the baffle 5. In other embodiments, the entire area of the avoidance groove 7 can be located on the support block 6 or the baffle 5, and can be specifically set according to the actual situation.

[0068] In summary, the structure of the micro-speaker test tooling provided by the present utility model is novel. The tester can increase or reduce the total volume of the front cavity by only adjusting the position of the sliding block in the adjustment hole, so as to test the performance of the micro-speaker when it is paired with front cavities of different volumes. This greatly saves the tooling manufacturing cost, improves the test efficiency, and the operation of the tester is extremely simple.

[0069] The above are only the embodiments of the present utility model, and do not limit the patent scope of the present utility model accordingly. Any equivalent transformation made by using the content of the specification and drawings of the present utility model, or directly or indirectly applied in the relevant technical fields, shall be equally included in the patent protection scope of the present utility model.

Claims

1. A micro speaker testing tool, characterized in that: include A seat body, wherein a placement groove and a front cavity are connected to each other, the placement groove is arranged on one side of the seat body, an adjustment hole connected to the front cavity is arranged on the other side of the seat body, and a sound outlet connected to the front cavity is arranged at the bottom of the seat body; A pressing plate, the pressing plate is located at one side of the seat body and is arranged corresponding to the placement groove; A sliding block is slidably disposed in the adjusting hole and blocks the adjusting hole.

2. The micro speaker test fixture according to claim 1, characterized in that: A quick clamp is provided on one side of the seat body, and the quick clamp presses the pressing plate to drive the pressing plate to approach the seat body.

3. The micro speaker test fixture according to claim 1, characterized in that: The other side of the seat body has a boss, the adjustment hole is arranged on the boss, the outer wall of the boss has a threaded hole connected to the adjustment hole, the threaded hole is provided with a pressing screw for pressing the sliding block, and the axis of the threaded hole is perpendicular to the sliding path of the sliding block.

4. The micro speaker test fixture according to claim 3, characterized in that: A shaping groove is provided on the other side of the seat body, the shaping groove is U-shaped or ring-frame-shaped, the shaping groove is connected to the bottom surface of the seat body, and the shaping groove is arranged around the boss.

5. The micro speaker testing tool according to claim 3, characterized in that: The threaded hole is arranged on the bottom surface of the boss.

6. The micro speaker test fixture according to claim 3, characterized in that: The number of the threaded holes is multiple.

7. The micro speaker testing tool according to claim 1, characterized in that: A positioning groove for positioning the pressure plate is also provided on one side of the seat body, the positioning groove is connected to the placement groove, and the placement groove is located between the front cavity and the positioning groove.

8. The micro speaker testing tool according to claim 7, characterized in that: One side of the seat body is also provided with a taking and placing groove connected to the positioning groove.

9. The micro speaker testing tool according to claim 1, characterized in that: It also includes a baffle and a support block arranged on the baffle, the other side of the seat body abuts against the support block, the baffle is provided with a limiting groove for limiting the seat body, and the bottom surface of the limiting groove has a window arranged corresponding to the sound outlet.

10. The micro speaker testing tool according to claim 9, characterized in that: A side of the support block close to the seat body and / or a wall surface of the limiting groove is provided with an avoidance groove for avoiding the sliding block.

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