Waterproof test device for loudspeaker cone

Abstract

The utility model discloses a waterproof test device for a loudspeaker cone. The waterproof test device comprises a water tank which is provided with a hollow test cavity, the upper surface of the water tank is provided with a sound cone installation port, and the sound cone installation port is communicated with the test cavity; the water injection port is formed in the water tank and is communicated with the test cavity; the pressing assembly is located on the upper surface of the water tank; wherein when the waterproof test device is in a test state, the sound basin mounting port is configured to receive a loudspeaker sound basin to be tested, and the pressing assembly is configured to press the edge of the loudspeaker sound basin to be tested, so that the sound basin mounting port is sealed by the loudspeaker sound basin to be tested. The waterproof test device can simply and efficiently test the waterproof performance of the loudspeaker cone.

Description

Technical Field

[0001] The utility model belongs to the field of loudspeaker cone testing, and in particular relates to a waterproof testing device for a loudspeaker cone. Background Art

[0002] The speaker cone is the core component of a speaker that produces sound. Its primary function is to vibrate the air, thereby producing sound. For speakers installed outdoors, such as pedestrian warning systems for new energy vehicles, the cones used must be waterproof. This prevents water from penetrating the cone and damaging components like the voice coil and magnetic circuit. It also prevents the cone from deforming due to water immersion, which could degrade or alter the sound quality. Currently, waterproof testing of speaker cones is crucial, and a simple, efficient, and intuitive solution is needed. Utility Model Content

[0003] In view of this, the utility model provides a waterproof testing device for a loudspeaker cone, which can simply and efficiently test the waterproof performance of the loudspeaker cone.

[0004] The utility model adopts the following technical solutions:

[0005] A waterproof testing device for a loudspeaker cone, comprising:

[0006] A water tank having a hollow test cavity, wherein a cone mounting opening is formed on an upper surface of the water tank and is connected to the test cavity;

[0007] A water inlet, which is provided on the water tank and communicated with the test cavity;

[0008] a pressing assembly located above the upper surface of the water tank;

[0009] When the waterproof testing device is in the testing state, the cone mounting opening is configured to receive the cone of the speaker to be tested, and the pressing assembly is configured to press the edge of the cone of the speaker to be tested so that the cone mounting opening is closed by the cone of the speaker to be tested.

[0010] In some embodiments, the water inlet is provided at the upper end of a water inlet pipe, the lower end of which is connected to the water tank. Whether the sound basin to be tested is watertight can be determined by observing the change in the liquid level in the water inlet pipe.

[0011] In some embodiments, the water filling pipe is transparent and has a scale mark indicating the liquid level, with the scale mark being higher than the upper surface of the water tank. Using the scale mark as a reference facilitates accurate observation of water level changes to determine whether the speaker cone is watertight.

[0012] In some embodiments, the lower end of the water injection pipe is connected to the lower part of the water tank.

[0013] In some embodiments, the pressing assembly includes an annular pressing plate surrounding the cone mounting opening.

[0014] In some embodiments, the inner diameter of the pressure plate is greater than or equal to the diameter of the cone mounting opening.

[0015] In some embodiments, the clamping assembly further includes a pressure block that is movably or rotatably mounted on the water tank. When the waterproof testing device is in a testing state, the pressure block presses against the pressure plate. When inserting or removing the speaker cone, the pressure block can be moved or rotated to a clear position to avoid blocking the speaker cone.

[0016] In some embodiments, there are two pressure plates. When the waterproof testing device is in the testing state, the edge of the speaker cone under test is clamped between the two pressure plates, which are pressed against the upper surface of the water tank. The two pressure plates can ensure that the speaker cone is tightly clamped and prevented from moving, resulting in more reliable test results.

[0017] In some embodiments, the upper surface of the water tank includes a first step surface and a second step surface, the second step surface is arranged around the first step surface and is higher than the first step surface, the speaker cone mounting opening is opened in the middle of the first step surface, the pressure plate is located on the first step surface, and the second step surface surrounds the pressure plate.

[0018] In some embodiments, the pressing plate is a circular steel plate with a central opening. During testing, the main body of the speaker cone to be tested is placed on the central opening, and the central opening is sealed.

[0019] The utility model adopts the above solution and has the following advantages:

[0020] The waterproof testing device of the present invention is that after the speaker cone is placed on the upper surface of the water tank, the cone to be tested is pressed by a pressing assembly, and the cone mounting opening on the water tank is closed; then water is poured into the water tank through the water filling port to a set liquid level or a set water volume. Whether the speaker cone is waterproof can be judged by observing whether the water level drops compared to the set liquid level, or whether water seeps out from above the cone. The waterproof performance of the speaker cone can be tested simply and efficiently. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solution of the present invention, the following is a brief introduction to the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0022] Figure 1 is a three-dimensional diagram of a waterproof testing device according to an embodiment of the present invention;

[0023] Figure 2 1 is a top view of a waterproof testing device according to an embodiment of the present invention;

[0024] Figure 3 for Figure 2 Cross-sectional view along AA direction;

[0025] Figure 4 for Figure 3 A partial enlarged view of point A in the middle.

[0026] in:

[0027] 100. The speaker cone to be tested;

[0028] 1. Water tank; 11. Test chamber; 12. Speaker cone mounting opening; 13. First step surface; 14. Second step surface; 15. Top angle;

[0029] 2. Water injection port;

[0030] 3. Clamping assembly; 31. Pressing plate; 32. Pressing block;

[0031] 4. Water injection pipe; 41. Scale line;

[0032] 5. Nut. DETAILED DESCRIPTION

[0033] The preferred embodiments of the present invention are described in detail below with reference to the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art. It should be noted that the description of these embodiments is intended to help understand the present invention, but does not constitute a limitation of the present invention.

[0034] In this document, the terms "upper", "lower", "front", "back", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they should not be understood as limiting this application.

[0035] Reference Figures 1 to 4As shown, this embodiment provides a waterproof testing device for a speaker cone, which is used to test whether the speaker cone is water-permeable or water-seeping. It should be noted that for a speaker cone design without a hole in the middle, the finished product can be directly installed on the waterproof testing device for testing; for a speaker cone design with a hole in the middle, it is necessary to first install the unfinished cone without a hole in the middle on the waterproof testing device for testing before opening the middle hole (the middle hole is used for subsequent assembly with the voice coil, etc.). After the waterproof test is passed, the punching process is then carried out to punch the middle hole in the middle of the cone.

[0036] The waterproof testing device includes a water tank 1, a water inlet 2, and a clamping assembly 3. Furthermore, the water tank 1 has a hollow test chamber 11, and a cone mounting port 12 is provided on the upper surface of the water tank 1. When the waterproof testing device is in the testing state, the cone mounting port 12 is configured to receive the speaker cone 100 to be tested. When the speaker cone to be tested needs to be waterproof tested, the speaker cone 100 to be tested is placed in the cone mounting port 12. The cone mounting port 12 is connected to the test chamber 11. The water inlet 2 is provided on the water tank 1 and is connected to the test chamber 11. If the speaker cone is not waterproof, then water entering from the water inlet 2 will flow through the test chamber 11 toward the cone mounting port 12, causing a change in the water level. Furthermore, the water inlet pipe 4 is transparent to facilitate observation of the test results. A scale line 41 for marking the liquid level is provided on the water inlet pipe 4, and the scale line 41 is higher than the upper surface of the water tank 1. During testing, water can be added to a selected scale line 41, making it easier to observe whether the water level changes. The lower end of the water filling pipe 4 is connected to the lower portion of the water tank 1. More specifically, the water filling port 2 is located at the upper end of the water filling pipe 4, and the lower end of the water filling pipe 4 is connected to the water tank 1. The water in the water filling pipe 4 and the water in the water tank 1 are interconnected. When the speaker cone 100 under test leaks water, the water in the water filling pipe 4 will decrease, and the water level will drop below the selected scale line.

[0037] More specifically, if the speaker cone 100 under test is not waterproof, water will flow along the water filling pipe 4 into the water tank 1, causing the water level in the water tank 1 to rise. This will cause the water in the water filling pipe 4 to move downward, meaning the water level will move downward relative to the scale line 41. This waterproof testing method of this embodiment is convenient to operate and provides relatively accurate results. If the speaker cone 100 under test is waterproof, the water level in the water filling pipe 4 will not change and will remain at the selected scale line 41. Furthermore, to test whether a speaker cone is waterproof, one can also directly observe whether there is water seepage on the cone.

[0038] The clamping assembly 3 is located on the upper surface of the water tank 1 and is configured to clamp the edge of the speaker cone 100 under test so that the cone mounting opening 12 is sealed by the speaker cone 100 under test. The clamping assembly 3 also includes a nut 5. After the clamping assembly 3 has clamped the edge of the speaker cone 100 under test, the nut 5 is locked to secure the clamping assembly 3 and prevent movement.

[0039] Reference Figure 1 As shown, the clamping assembly 3 includes an annular pressure plate 31 and a pressure block 32. The pressure plate 31 surrounds the sound cone mounting opening 12, and the inner diameter of the pressure plate 31 is greater than or equal to the diameter of the sound cone mounting opening 12. The pressure block 32 is movably or rotatably arranged on the water tank 1. In this embodiment, the number of pressure blocks 32 is four and they are evenly distributed on the water tank 1. Specifically, they are arranged at the four top corners 15 of the water tank 1. When the waterproof testing device is in the testing state, the pressure blocks 32 are pressed on the pressure plate 31.

[0040] The pressing block 32 is movably disposed on the water tank 1, meaning that the pressing block 32 moves linearly in the direction of the top angle 15. When the speaker cone needs to be tested for waterproofness, the pressing block 32 moves away from the top angle 15 until it presses against the annular pressure plate 31. When the speaker cone waterproofness test is completed or when the speaker cone waterproofness test is no longer required, the pressing block 32 moves toward the top angle 15 to disengage from the pressure plate 31. The pressing block 32 is rotatably disposed on the water tank 1, meaning that the pressing block 32 can rotate about the centerline of the nut 5. Before placing the speaker cone in the cone mounting opening 12 or after testing the speaker's waterproofness, the pressing block 32 can be rotated to disengage from the pressure plate 31.

[0041] Furthermore, the pressure plate 31 is a circular steel plate with a central opening. There are two pressure plates 31. When the waterproof test device is in the test state, the edge of the speaker cone 100 to be tested is clamped between the two pressure plates 31, which provides a good seal. The main body of the speaker cone 100 to be tested is located at the central opening of the pressure plate 31. The pressure plate 31 presses on the upper surface of the water tank 1, making the waterproof test of the speaker cone more reliable. It should be noted that the "main body of the speaker cone to be tested" refers to the remaining part of the speaker cone to be tested except the edge.

[0042] Furthermore, refer to Figure 4 As shown, the upper surface of the water tank 1 includes a first step surface 13 and a second step surface 14. The second step surface 14 is arranged around the first step surface 13 and is higher than the first step surface 13. The speaker cone mounting opening 12 is opened in the middle of the first step surface 13. The pressure plate 31 is located on the first step surface 13, and the second step surface 14 surrounds the pressure plate 31.

[0043] When testing the waterproof testing device of this embodiment, the speaker cone 100 to be tested is first placed in the cone mounting opening 12. Specifically, the edge of the speaker cone is clamped between the two pressure plates 31. The pressure block 32 is then moved or rotated to press it onto the pressure plate 31. The pressure plate 31 and the speaker cone to be tested therein are tightly pressed against the upper surface of the water tank 1 to seal the cone mounting opening 12. At this time, except for the water inlet, the inside of the water tank 1 is sealed as a whole. Water is then injected into the water inlet 2. The water flows into the water tank 1 along the water injection pipe 4. When the water is added to the selected scale line 41, the water in the water tank 1 contacts the speaker cone to be tested, and the lower surface of the cone is immersed in water. At this time, the change in the water level is observed. If the water level is lower than the scale line 41, it means that water has seeped into the speaker cone. You can also directly observe whether there is water seeping out from the speaker cone.

[0044] The waterproof testing device for the speaker cone of this embodiment can observe the change of water level or directly observe whether the speaker cone has water leakage during the test, with high detection efficiency and relatively accurate results.

[0045] As used in this specification and claims, the terms "comprises" and "include" merely indicate the inclusion of the steps and elements specifically identified, and these steps and elements do not constitute an exclusive list; a method or apparatus may also include other steps or elements. The term "and / or" as used herein includes any combination of one or more of the associated listed items.

[0046] It is further understood that in the present disclosure, "plurality" refers to two or more than two, and other quantifiers are similar.

[0047] It should be noted that, unless otherwise specified, when a feature is referred to as being “fixed” or “connected” to another feature, it may be directly fixed or connected to the other feature, or indirectly fixed or connected to the other feature.

[0048] The above embodiment is intended only to illustrate the technical concept and features of the present invention and is a preferred embodiment. Its purpose is to enable those familiar with the art to understand the content of the present invention and implement it accordingly. It is not intended to limit the scope of protection of the present invention. Any equivalent changes or modifications made based on the principles of the present invention shall be included in the scope of protection of the present invention.

Claims

1. A waterproof testing device for a loudspeaker cone, characterized in that: include: A water tank having a hollow test cavity, wherein a cone mounting opening is formed on an upper surface of the water tank and is connected to the test cavity; A water inlet, which is provided on the water tank and communicated with the test cavity; a pressing assembly located above the upper surface of the water tank; When the waterproof testing device is in the testing state, the cone mounting opening is configured to receive the cone of the speaker to be tested, and the pressing assembly is configured to press the edge of the cone of the speaker to be tested so that the cone mounting opening is closed by the cone of the speaker to be tested.

2. The waterproof testing device according to claim 1, characterized in that: The water injection port is arranged at the upper end of a water injection pipe, and the lower end of the water injection pipe is connected to the water tank.

3. The waterproof testing device according to claim 2, characterized in that: The water injection pipe is transparent and is provided with a scale line for marking the height of the liquid level, and the scale line is higher than the upper surface of the water tank.

4. The waterproof testing device according to claim 2, characterized in that: The lower end of the water injection pipe is connected to the lower part of the water tank.

5. The waterproof testing device according to claim 1, characterized in that: The pressing assembly includes an annular pressing plate, which surrounds the cone mounting opening.

6. The waterproof testing device according to claim 5, characterized in that: The inner diameter of the pressing plate is greater than or equal to the diameter of the cone installation opening.

7. The waterproof testing device according to claim 5, characterized in that: The pressing assembly further includes a pressing block, which is movably or rotatably arranged on the water tank. When the waterproof testing device is in a testing state, the pressing block is pressed on the pressing plate.

8. The waterproof testing device according to claim 7, characterized in that: There are two pressing plates. When the waterproof testing device is in the testing state, the edge of the speaker cone to be tested is clamped between the two pressing plates, and the pressing plates are pressed on the upper surface of the water tank.

9. The waterproof testing device according to claim 5, characterized in that: The upper surface of the water tank includes a first step surface and a second step surface, the second step surface is arranged around the first step surface and is higher than the first step surface, the speaker cone mounting opening is opened in the middle of the first step surface, the pressure plate is located on the first step surface, and the second step surface surrounds the pressure plate.

10. The waterproof testing device according to claim 5, characterized in that: The pressing plate is a circular steel plate with a hole in the middle.

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