Testing tool

Abstract

The utility model discloses a test tool, which comprises a tool main body, a test groove is arranged on the tool main body, the depth of the test groove is gradually increased along a first direction, and a first opening and a second opening are arranged in the test groove. The position of the first opening arranged in the test groove is higher than the groove depth of the second opening; a first channel and a second channel which are communicated with the outside are arranged in the tool body, the first channel is communicated with the first opening, and the second channel is communicated with the second opening. When the test tool is used for the true water test of the miniature loudspeaker, the performance change of the miniature loudspeaker after diving can be simulated, and acoustic performance debugging and control are facilitated. Besides, as the bottom of the test groove is an inclined plane, the principle that water flows to the lower part is utilized, the water flow can quickly flow out through the opening for draining and exhausting at the bottom of the groove, the water can be quickly and effectively drained after the test, and the test efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of testing equipment, in particular to a testing tool. Background Art

[0002] During the research and development and production stages of micro speakers, it is usually necessary to test the air tightness, acoustic performance, listening effect and various performance of the speakers. The application scenarios of micro speakers are different, and the way of testing will also change accordingly, such as in smart watches. With the continuous advancement of chip technology, battery technology and sensor technology, smart watches can achieve more functions, such as health monitoring, communication, navigation, etc., which increases their practicality and attractiveness. At the same time, smart watches also have a waterproof rating of more than 5ATM, so the micro speakers in smart watches must also have a waterproof rating of more than 5ATM. In order to better dive, micro speakers generally have waterproof and breathable functions. At this time, if the traditional inflation test is used for testing, it is not possible to simulate the performance changes of the micro speaker after diving, which is not conducive to acoustic performance testing. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a test fixture to solve the problem that the existing test fixture cannot simulate the performance change of the micro speaker after diving well, is not conducive to acoustic performance testing, and cannot drain water well after testing.

[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0005] A test tool, comprising a tool body, wherein the tool body is provided with a test groove, and the groove depth of the test groove gradually increases along a first direction, and a first opening and a second opening are provided in the test groove, and the position of the first opening arranged in the test groove is higher than the groove depth of the second opening; a first channel and a second channel connected to the outside are provided in the tool body, and the first channel is connected to the first opening, and the second channel is connected to the second opening.

[0006] Furthermore, in the test fixture described in the present utility model, the first channel includes a first sub-channel and a second sub-channel that are interconnected, and an extension direction of the first sub-channel is arranged at an angle to an extension direction of the second sub-channel.

[0007] Furthermore, in the test fixture described in the present invention, one end of the first sub-channel is communicated with the first opening, and the other end opening of the first sub-channel is arranged on a side surface of the fixture body.

[0008] Furthermore, in the test fixture described in the utility model, a first shielding portion is further provided on the fixture body, and the first shielding portion is embedded in the other end opening of the first sub-channel.

[0009] Furthermore, in the test fixture described in the present invention, one end of the second sub-channel is connected to the first sub-channel, and the other end is provided with two opening sections.

[0010] Furthermore, in the test tooling described in the utility model, the two opening sections include a first opening section and a second opening section, the opening of the first opening section is arranged on the bottom surface of the tooling body, and the opening of the second opening section is arranged on a side surface of the tooling body.

[0011] Furthermore, in the test fixture described in the utility model, a second shielding portion is further provided on the fixture body, and the second shielding portion is embedded in the opening of the second opening section.

[0012] Furthermore, in the test fixture described in the utility model, the fixture body is also provided with a plurality of first through holes, the first through holes include a first hole and a second hole connected to each other, and the diameter of the first hole is greater than the diameter of the second hole.

[0013] Furthermore, in the testing tool described in the utility model, the first channel and the second channel are respectively arranged on both sides of the testing groove.

[0014] Furthermore, in the testing tool described in the utility model, an annular groove is also provided on the tool body, and the annular groove is arranged around the periphery of the testing groove.

[0015] The beneficial effect of the utility model is that a test fixture is designed, and a test groove is provided on the fixture body of the test fixture. The groove depth of the test groove gradually increases along the first direction, that is, the groove bottom of the test groove is an inclined surface, and a first opening (an opening for water injection and gas injection) and a second opening (an opening for drainage and exhaust) are provided in the test groove, and the first opening is arranged in the test groove at a position higher than the groove depth of the second opening. On this basis, a first channel and a second channel leading to the external space are provided on the fixture body, and the first channel is connected to the first opening, and the second channel is connected to the second opening. Since the bottom of the test groove is an inclined surface, the water flow can quickly flow out through the opening for drainage and exhaust at the bottom of the groove, that is, through the second opening, by using the principle that water flows to a lower place, so as to facilitate rapid and effective drainage after the test. It can be seen that in the real water test of the micro speaker by the above-mentioned test fixture, the performance change of the micro speaker after diving can be simulated, which is helpful for the debugging and control of acoustic performance. In addition, after the test is completed, the test fixture of the utility model can also quickly drain water through the inclined surface of the bottom of the groove to improve the test efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the test tool described in the utility model in one embodiment from one viewing angle;

[0017] Figure 2 It is a structural schematic diagram of the sealing structure of the utility model in another viewing angle under one implementation mode;

[0018] Figure 3 It is a schematic structural diagram of the cavity housing of the utility model in another viewing angle under one embodiment;

[0019] Figure 4 A cross-sectional view of the cavity housing of the utility model in one embodiment at one viewing angle;

[0020] Figure 5 It is a structural schematic diagram of the steel plate of the utility model in another viewing angle under one implementation mode;

[0021] Figure 6 It is a schematic structural diagram of the steel plate described in the utility model under another viewing angle in one implementation manner.

[0022] Description of labels:

[0023] 1. Tool body; 11. First through hole; 12. Annular groove; 13. Second through hole;

[0024] 2. test groove; 21. first opening; 22. second opening;

[0025] 31, first sub-channel; 32, second sub-channel; 321, first opening section; 322, second opening section;

[0026] 41, third sub-channel; 42, fourth sub-channel; 421, third opening section; 422, fourth opening section;

[0027] 5. A first shielding portion;

[0028] 6. A second shielding portion;

[0029] 7. The third shielding part;

[0030] 8. A fourth shielding portion;

[0031] 9. Micro speakers. DETAILED DESCRIPTION

[0032] In order to explain the technical content, achieved objectives and effects of the present invention in detail, the following is an explanation in conjunction with the implementation modes and the accompanying drawings.

[0033] Please refer to Figures 1 to 6 The utility model designs a test tool, which includes: a tool body 1, a test groove 2 is provided on the tool body 1, and the height of the bottom of the test groove 2 relative to the bottom surface of the tool body 1 gradually increases along a first direction; a first channel and a second channel leading to the external space are provided in the tool body 1, one end opening of the first channel is arranged on the higher side of the bottom of the test groove 2, and one end opening of the second channel is arranged on the lower side of the bottom of the test groove 2.

[0034] From the above description, it can be seen that the beneficial effect of the utility model is that the utility model designs a test tool, and a test groove 2 is provided on the tool body 1 of the test tool. The groove depth of the test groove 2 gradually increases along the first direction, that is, the groove bottom of the test groove is an inclined surface, and the test groove is provided with a first opening 21 (an opening for water injection and gas injection) and a second opening 22 (an opening for drainage and exhaust), and the first opening 21 is arranged in the test groove at a position higher than the groove depth of the second opening 22. On this basis, a first channel and a second channel leading to the external space are provided on the tool body, and the first channel is connected to the first opening 21, and the second channel is connected to the second opening 22. Since the bottom of the test groove is an inclined surface, the water flow can quickly flow out through the opening for drainage and exhaust at the bottom of the groove, that is, through the second opening, by using the principle that water flows to a lower place, so as to facilitate rapid and effective drainage after the test. It can be seen that in the real water test of the micro speaker by the above-mentioned test tool, the performance changes of the micro speaker after diving can be simulated, which is helpful for the debugging and control of acoustic performance. In addition, after the test is completed, the test fixture of the utility model can also quickly drain water through the inclined surface of the groove bottom, thereby improving the test efficiency.

[0035] When testing the acoustic performance of the micro-speaker 9 by the test fixture of the utility model, the micro-speaker 9 can be first placed on the test groove 2 of the test fixture, and then water can be injected to cover the surface of the micro-speaker 9, and then the inflated air can be continued for testing. Specifically: water can be injected through the external interface of the first channel, the water flows in the first channel, and is injected into the test groove 2 through the first channel and the first opening connected thereto. Then, air is inflated through the first channel and the first opening connected thereto to test the acoustic performance. After the test is completed, the water is drained and exhausted through the second opening and the second channel. Since the bottom of the test groove 2 is an inclined surface, the water can quickly flow out through the second opening by utilizing the principle that water flows to lower places, which facilitates quick and effective drainage after the test. In the real water test of the micro-speaker 9 by the above-mentioned test fixture, the performance changes of the micro-speaker 9 after diving can be simulated, which is helpful for the debugging and control of the acoustic performance.

[0036] Furthermore, in the test fixture described in the present invention, the first channel includes a first sub-channel 31 and a second sub-channel 32 that are interconnected, and an extension direction of the first sub-channel 31 and an extension direction of the second sub-channel 32 are arranged at an angle.

[0037] In the above technical solution of the utility model, the first channel may include a first sub-channel 31 and a second sub-channel 32 which are interconnected, and the extension direction of the first sub-channel 31 is different from the extension direction of the second sub-channel 32. That is, the first channel has two sub-channels in different directions, and corresponding water injection and gas injection operations can be performed through the sub-channels in different extension directions.

[0038] Further, in the test fixture of the present invention, one end of the first sub-channel 31 is communicated with the first opening, and the other end opening of the first sub-channel 31 is arranged on a side surface of the fixture body.

[0039] In the above technical solution of the utility model, one end of the first sub-channel 31 is connected to the first opening, and the other end opening is set on a side surface of the tooling body, so that the first sub-channel can be connected to the test groove for corresponding water injection and gas injection operations.

[0040] Furthermore, in the test fixture described in the utility model, a first shielding portion 5 is further provided on the fixture body 1 , and the first shielding portion 5 is embedded in the other end opening of the first sub-channel 31 .

[0041] In the above technical solution of the utility model, considering the processing problem, the right-angle channel cannot be directly dug out. The utility model sets a first shielding portion 5 on the side wall of the tooling body 1, and covers the first shielding portion 5 on the second end opening of the first sub-channel 31.

[0042] Furthermore, in the test fixture described in the present invention, one end of the second sub-channel 32 is communicated with the first sub-channel 31 , and the other end is provided with two opening sections.

[0043] In the above technical solution of the utility model, one end of the second sub-channel 32 is connected to the first sub-channel 31, and two opening sections are correspondingly arranged at the other end, so that the test groove 2 can be injected with water and gas through the two opening sections, the second sub-channel 32, and the first sub-channel 31 in sequence.

[0044] Furthermore, in the test tooling described in the present invention, the two opening sections include a first opening section 321 and a second opening section 322 , the opening of the first opening section 321 is arranged on the bottom surface of the tooling body 1 , and the opening of the second opening section 322 is arranged on a side surface of the tooling body 1 .

[0045] In the above technical solution of the present utility model, two opening sections are arranged at one end of the second sub-channel 32 leading to the outside, so that water and gas injection can be carried out through the above opening sections.

[0046] Furthermore, in the test tool described in the present invention, considering the processing problem, the right-angle channel cannot be directly dug out. The present invention provides a second shielding portion 6 on the tool body 1, and the second shielding portion 6 is embedded in the opening of the second opening section 322.

[0047] In the above technical solution of the present utility model, a second shielding portion 6 is provided on the side wall of the tooling body 1 , and the second shielding portion 6 covers the opening of the second opening section 322 .

[0048] Furthermore, in the test fixture described in the present invention, the fixture body 1 is further provided with a plurality of first through holes 11 , wherein the first through holes 11 include a first hole and a second hole connected to each other, and the diameter of the first hole is greater than the diameter of the second hole.

[0049] In the above technical solution of the utility model, a plurality of first through holes 11 are arranged on the tooling body 1, and the first through holes 11 are composed of an upper part and a lower part. The diameter of the upper part (i.e., the first hole) is larger than the diameter of the lower part (i.e., the second hole). The first through holes are used for screws to pass through to fix the tooling.

[0050] Furthermore, in the testing tool described in the present invention, the first channel and the second channel are respectively arranged on both sides of the testing groove 2 .

[0051] In the above technical solution of the utility model, the first channel and the second channel are arranged on both sides of the test groove 2, so that water and air can be injected through the first channel on one side of the test groove 2, and drainage and exhaust can be carried out through the second channel on the other side of the test groove 2, thereby reducing the interference caused by being arranged on one side and facilitating maintenance. If it is arranged on one side, the first channel and the second channel may cross or be too close, affecting the use effect.

[0052] Furthermore, in the testing tool described in the utility model, an annular groove 12 is further provided on the tool body 1 , and the annular groove 12 is arranged around the periphery of the testing groove 2 .

[0053] In the above technical solution of the present invention, an annular groove 12 is arranged on the periphery of the test groove 2 , and a corresponding sealing ring is arranged in the annular groove 12 to play a corresponding sealing role, which is helpful for testing the acoustic performance of the micro speaker 9 .

[0054] Please refer to Figures 1 to 6The first embodiment of the utility model is: a test tool, which includes a tool body 1, and the tool body 1 is roughly in the shape of a rectangular parallelepiped. Figure 1 As shown, the tooling body 1 is provided with a test groove 2 with an opening facing upward, and the test groove 2 can be used to place the micro speaker 9 to be tested. The micro speaker 9 of this embodiment can be used in smart watches with a waterproof rating of 5ATM or above. Correspondingly, the micro speaker 9 arranged in the smart watch must also have a waterproof and breathable function. At this time, if the micro speaker 9 of this embodiment is to be tested, the traditional inflation test cannot be used for testing. It is necessary to fill water to cover the surface of the micro speaker 9, and then continue to inflate for testing. On this basis, in order to be able to fill the test groove 2 with water and air as well as drain and exhaust, the first channel and the second channel are correspondingly arranged inside the tooling body 1 of this embodiment, so as to perform a corresponding real water test on the micro speaker 9. The following is combined with Figures 2 to 6 The test groove 2, the first channel and the second channel are described in detail.

[0055] In this embodiment, if Figure 3 as well as Figure 4 As shown, the shape of the test groove 2 is similar to a rectangle with four curved corners. The test groove 2 extends along a first direction, which is the length direction of the tooling body 1. The depth of the test groove gradually increases along the first direction, that is, the bottom of the test groove 2 is an inclined surface, and the height of the inclined surface gradually increases in the first direction. Figure 4 For example, the height of the groove bottom relative to the bottom surface of the tooling body 1 increases from left to right. A first opening 21 and a second opening 22 are provided at the groove bottom, and the first opening 21 is arranged at a position in the test groove that is higher than the groove depth of the second opening 22, that is, a second opening is provided on the left side (i.e., the lower side of the groove bottom), and the second opening is connected to one end of the second sub-channel, and a first opening is correspondingly provided on the right side (i.e., the higher side of the groove bottom), and the first opening is connected to the first channel.

[0056] In this embodiment, if Figure 2 , Figure 3As shown, the first channel and the second channel extend from the bottom of the test groove 2 and extend to both sides respectively. The first channel includes two sub-channels with circular cross-sections, namely the first sub-channel 31 and the second sub-channel 32. The main part of the first sub-channel 31 extends along the width direction of the tooling body 1, and one end of the first sub-channel 31 is connected to the first opening, and the other end opening of the first sub-channel 31 is arranged on a side surface of the tooling body. And at the opening at the other end of the first sub-channel, a first shielding portion 5 that is adapted to the shape and size of the opening is provided, and the first shielding portion 5 is a cylinder. The opening is blocked by embedding the first shielding portion 5 of the cylinder into the opening at the other end of the first sub-channel. The main part of the second sub-channel 32 extends along the length direction of the tooling body 1, and one end of the second sub-channel 32 is connected to the first sub-channel 31, as shown in FIG. Figure 2 As shown, the second sub-channel 32 extends from the middle position of the first sub-channel 31 and extends along the length direction of the tooling body 1. The second sub-channel 32 is provided with two opening sections at one end away from the first sub-channel 31, namely the first opening section 321 and the second opening section 322. The opening of the first opening section 321 is arranged on the bottom surface of the tooling body 1, and the opening of the second opening section 322 is arranged on one side surface of the tooling body 1. The radius of the second opening section 322 is greater than the radius of the main part of the second sub-channel 32. At the opening of the second opening section 322, a second shielding portion 6 is provided which is adapted to the shape and size of the second opening section 322. The second shielding portion 6 is a cylinder. The opening of the second opening section 322 is blocked by embedding the cylindrical second shielding portion 6 into the second end opening.

[0057] The second channel includes two sub-channels with circular cross-sections, namely the third sub-channel 41 and the fourth sub-channel 42. The main part of the third sub-channel 41 extends along the width direction of the tooling body 1, and one end of the third sub-channel 41 is connected to the above-mentioned second opening, and the other end opening of the third sub-channel 41 is arranged on the side of the tooling body 1. It should be pointed out that the radius of the other end opening of the third sub-channel 41 is larger than the main part of the third sub-channel 41. At the other end opening of the third sub-channel 41, a third shielding portion 7 that is adapted to the shape and size of the other end opening of the third sub-channel 41 is arranged. The third shielding portion 7 is a cylinder. The cylindrical third shielding portion 7 is embedded in the other end opening of the third sub-channel 41 to block the opening. The main part of the fourth sub-channel 42 extends along the length direction of the tooling body 1, and one end of the fourth sub-channel 42 is connected to the third sub-channel 41. Figure 2As shown, the fourth sub-channel 42 extends from the middle position of the third sub-channel 41 and extends along the length direction of the tooling body 1. The fourth sub-channel 42 is provided with two opening sections at one end away from the third sub-channel 41, namely the third opening section 421 and the fourth opening section 422. The opening of the third opening section 421 is arranged on the bottom surface of the tooling body 1, and the opening of the fourth opening section 422 is arranged on one side surface of the tooling body 1, and the radius of the fourth opening section 422 is greater than the radius of the main part of the fourth sub-channel 42. At the opening of the fourth opening section 422, a fourth shielding portion 8 matching the shape and size of the fourth opening section 422 is arranged, and the fourth shielding portion 8 is a cylinder. The opening of the fourth opening section 422 is blocked by embedding the cylindrical fourth shielding portion 8 into the second end opening. It should be noted that the structures of the first channel and the second channel on the tooling body 1 are similar.

[0058] In addition, in this embodiment, the tool body 1 is further provided with an annular groove 12, a plurality of first through holes 11 and a plurality of second through holes 13. Figures 2 to 6 The above components are introduced in detail. Figure 3 As shown, the annular groove 12 is arranged on the upper bottom surface of the tooling body 1 and is arranged around the periphery of the test groove 2. The opening of the annular groove 12 is upward and the shape of the annular groove 12 is an annular runway, which can be used to set a sealing ring. When testing is performed using the test tool, a sealing ring can be set on the annular groove 12 to achieve a sealing effect. It should be pointed out that the material of the sealing ring can be silicone. In this embodiment, a plurality of first through holes 11 are also provided on the tooling body 1, such as Figure 3 As shown, two of them are distributed at the two corners of the tooling body 1, and the other two are arranged near the side. The first through hole 11 is composed of an upper part and a lower part, and the diameter of the upper part (i.e., the first hole) is larger than the diameter of the lower part (i.e., the second hole). In addition, two second through holes 13 are symmetrically distributed along the width direction of the tooling body 1 with the test groove 2 as the central axis on the tooling body 1. The second through holes 13 are used for positioning to guide the above-mentioned cover plate to be arranged on the upper surface of the tooling body. The axial cross section of the second through hole 13 is circular. The second through hole 13 extends along the height direction of the tooling body 1.

[0059] In summary, the test fixture provided by the utility model needs to be filled with water to cover the surface of the micro-speaker, and then continue to inflate for testing. Using the principle that water flows to lower places, a slope is made to facilitate drainage after testing. In the process of real water testing of the micro-speaker, since the bottom of the test groove is a slope, using the principle that water flows to lower places, the water flow can quickly flow out through the openings at the bottom of the groove for drainage and exhaust, that is, flow out through the second opening, which is convenient for rapid and effective drainage after the test. It can be seen that in the real water test of the micro-speaker through the above-mentioned test fixture, the performance changes of the micro-speaker after diving can be simulated, which is helpful for the debugging and control of acoustic performance. In addition, after the test is completed, the test fixture of the utility model can also quickly drain water through the slope at the bottom of the groove to improve the test efficiency.

[0060] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent transformations made using the contents of the specification and drawings of the present invention, or directly or indirectly applied in the relevant technical field, are also included in the patent protection scope of the present invention.

Claims

1. A test tool, characterized in that: include: A tool body, wherein a test groove is provided on the tool body, and the groove depth of the test groove gradually increases along a first direction, and a first opening and a second opening are provided in the test groove, and the first opening is arranged at a position in the test groove at a higher groove depth than the second opening; The tool body is provided with a first channel and a second channel communicated with the outside, and the first channel is communicated with the first opening, and the second channel is communicated with the second opening.

2. The test tool according to claim 1, characterized in that: The first channel includes a first sub-channel and a second sub-channel which are interconnected, and an extension direction of the first sub-channel is arranged at an angle to an extension direction of the second sub-channel.

3. The test tool according to claim 2, characterized in that: One end of the first sub-channel is communicated with the first opening, and the other end opening of the first sub-channel is arranged on a side surface of the tooling body.

4. The test fixture according to claim 3, characterized in that: The tool body is also provided with a first shielding portion, and the first shielding portion is embedded in the other end opening of the first sub-channel.

5. The test tool according to claim 2, characterized in that: One end of the second sub-channel is communicated with the first sub-channel, and the other end is provided with two opening sections.

6. The test tool according to claim 5, characterized in that: The two opening sections include a first opening section and a second opening section, the opening of the first opening section is arranged on the bottom surface of the tooling body, and the opening of the second opening section is arranged on a side surface of the tooling body.

7. The test fixture according to claim 6, characterized in that: The tool body is also provided with a second shielding portion, and the second shielding portion is embedded in the opening of the second opening section.

8. The test tool according to claim 1, characterized in that: The tool body is further provided with a plurality of first through holes, wherein the first through holes include a first hole and a second hole connected to each other, and a diameter of the first hole is greater than a diameter of the second hole.

9. The test tool according to claim 1, characterized in that: The first channel and the second channel are respectively arranged on two sides of the test groove.

10. The test fixture according to claim 1, characterized in that: The tool body is also provided with an annular groove, which is arranged around the periphery of the test groove.

Images