Waterproof performance testing device

Abstract

The utility model relates to the technical field of testing equipment, and particularly discloses a waterproof performance testing device, which comprises a lower die assembly, a lower die assembly and a waterproof performance testing assembly, and is characterized in that the lower die assembly is used for placing a to-be-tested earphone provided with an earphone hole; the upper die assembly is located above the lower die assembly and used for being matched with the lower die assembly to press the earphone to be tested after being driven; the connector assembly is mounted at the bottom of the upper die assembly, is used for pressing the peripheral position of the headset hole, and is provided with an air exhaust hole communicated to the headset hole; the air exhaust equipment is communicated with the headset hole through the air exhaust hole and is used for vacuumizing the air exhaust hole; and the pressure detection equipment is communicated with the air exhaust hole and is used for acquiring a pressure parameter of the air exhaust hole. The waterproof performance testing device provided by the utility model can effectively solve the problems in the prior art that the waterproof detection result of the headset hole is low in accuracy and the waterproof grade cannot be quantified.

Description

Technical Field

[0001] The utility model relates to the technical field of test equipment, in particular to a waterproof performance test device. Background Art

[0002] With the wide application of electronic products, users have higher and higher requirements for the waterproof performance of products. Especially in the field of Bluetooth TWS / OWS earphones, the quality of waterproof performance directly affects the service life of the products and the user experience.

[0003] Most earphone products are provided with earphone microphone holes. Before leaving the factory, it is necessary to test the waterproof performance of the earphone microphone holes. The current detection methods are as follows:

[0004] Workers put the earphone products into water and observe whether there are bubbles generated, so as to judge whether the waterproof performance of the earphone microphone holes meets the requirements.

[0005] Such a detection method not only easily leads to a large number of defective products flowing into the market due to excessive observation errors, but also cannot accurately judge whether the product meets the expected waterproof level (such as IPX7 waterproof level).

[0006] Therefore, the utility model is committed to researching and developing a waterproof performance test device to solve the problems of low accuracy of the waterproof detection results of the earphone microphone holes in the prior art and the inability to quantify the waterproof level.

[0007] The above information disclosed in this background section is only included to enhance the understanding of the background of the present disclosure, and thus may include information that does not form the prior art known to those of ordinary skill in the art at present. Summary of the Utility Model

[0008] An object of the utility model is to provide a waterproof performance test device, which can effectively solve the problems of low accuracy of the waterproof detection results of the earphone microphone holes in the prior art and the inability to quantify the waterproof level.

[0009] To achieve the above object, the utility model provides a waterproof performance test device, including:

[0010] A lower die assembly for placing a to-be-tested earphone provided with an earphone microphone hole;

[0011] An upper die assembly located above the lower die assembly and used for pressing the to-be-tested earphone in cooperation with the lower die assembly after being driven;

[0012] A joint assembly installed at the bottom of the upper die assembly for pressing the peripheral position of the earphone microphone hole and provided with an air extraction hole communicated with the earphone microphone hole;

[0013] An air extraction device, which is communicated with the earphone hole through the air extraction hole and is used to evacuate the air extraction hole to a vacuum.

[0014] A pressure detection device, which is communicated with the air extraction hole and is used to obtain the pressure parameter of the air extraction hole.

[0015] Optionally, the lower mold assembly includes a fixed base and a profiling base detachably mounted on the fixed base.

[0016] Optionally, the upper mold assembly includes an upper mold bottom plate and a pressing rubber block mounted on the bottom of the upper mold bottom plate and used to press the earphone under test downward.

[0017] Optionally, a rubber block insertion hole is provided at the bottom of the upper mold bottom plate, and the upper end of the pressing rubber block is inserted into the rubber block insertion hole and is connected with the rubber block insertion hole in an interference fit manner.

[0018] Optionally, a positioning pin is provided at the bottom of the upper mold bottom plate, and a positioning hole for the positioning pin to insert is provided at the top of the fixed base.

[0019] Optionally, the joint assembly includes:

[0020] A profiling pressing block, which is provided with the air extraction hole;

[0021] A rigid adapter, the profiling pressing block is mounted on the bottom of the rigid adapter, and an air extraction cavity communicated with the air extraction hole is provided inside the rigid adapter.

[0022] Optionally, a pressing block insertion hole is provided at the bottom of the rigid adapter, and the upper end of the profiling pressing block is inserted into the pressing block insertion hole and is connected with the pressing block insertion hole in an interference fit manner.

[0023] Optionally, it further includes:

[0024] An air pipe joint, which is mounted at the side position of the rigid adapter and is used to connect the air extraction cavity to the air extraction device and the pressure detection device through an air pipe.

[0025] Optionally, it further includes:

[0026] A linear drive module, the drive end of the linear drive module is connected to the upper mold assembly and is used to drive the upper mold assembly to move up and down relative to the lower mold assembly.

[0027] Optionally, it further includes an alarm device communicatively connected to the pressure detection device.

[0028] The beneficial effects of the present utility model are as follows: A waterproof performance testing device is provided. During the test, first place the earphone to be tested on the lower mold assembly, and then the upper mold assembly cooperates with the lower mold assembly to press the earphone tightly, and ensure that the peripheral position of the earphone hole is in close contact with the connector assembly to ensure the airtightness between the air extraction hole and the earphone hole. Then, the air extraction device evacuates the air extraction hole. Synchronously, the pressure detection device obtains the pressure parameters during the air extraction process in real time. If the seal of the earphone hole is good, the vacuum degree in the air extraction hole should remain stable; if the seal of the earphone hole is poor, the outside air will enter the air extraction hole through the earphone hole, ultimately resulting in an increase in the air pressure in the air extraction hole and difficulty in evacuating the air. Therefore, the seal of the earphone hole can be judged based on the pressure parameters detected by the pressure detection device. Further, according to the test requirements of different waterproof levels, by adjusting the vacuum degree requirements for the air extraction hole, it can be judged which waterproof level requirement the seal of the earphone hole specifically meets, thereby realizing the quantitative test of the waterproof level. That is, by judging whether the earphone reaches the predetermined waterproof level through the change of the pressure parameters, the problems of low detection accuracy and inability to quantify the waterproof level in the prior art are solved.

[0029] Therefore, the waterproof performance testing device provided by the present utility model can effectively solve the problems of low accuracy of the waterproof detection result of the earphone hole in the prior art and inability to quantify the waterproof level. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0031] Figure 1 It is a schematic structural diagram of the waterproof performance testing device provided for the embodiment;

[0032] Figure 2 It is a top view of the lower mold assembly provided for the embodiment;

[0033] Figure 3 It is a bottom view of the upper mold assembly provided for the embodiment.

[0034] In the figure:

[0035] 100, earphone to be tested; 100a, earphone hole;

[0036] 1, lower mold assembly; 101, fixed base; 1011, positioning hole; 102, profiling base;

[0037] 2. Upper die assembly; 201. Upper die bottom plate; 2011. Positioning dowel pin; 202. Pressing rubber block;

[0038] 3. Joint assembly; 301. Profiled pressing block; 3011. Air extraction hole; 302. Rigid adapter; 303. Air pipe joint. Specific embodiments

[0039] In the present utility model, referring to "embodiment" means that the specific features, structures or characteristics described in combination with the embodiment can be included in at least one embodiment of the present utility model. The term "embodiment" appearing in various positions in the specification does not necessarily refer to the same embodiment, nor does it particularly limit its independence or relevance to other embodiments. In principle, in the present utility model, as long as there is no technical contradiction or conflict, the technical features mentioned in each embodiment can be combined in any way to form corresponding implementable technical solutions.

[0040] Unless otherwise defined, the meanings of the technical terms used herein are the same as those commonly understood by those skilled in the technical field to which the present utility model belongs; the use of the relevant terms herein is only for describing specific embodiments and is not intended to limit the present utility model.

[0041] In the description of the present utility model, the phrase "and / or" is an expression used to describe the logical relationship between objects, indicating that there can be three relationships, for example, A and / or B, which means: there is A, there is B, and there is both A and B at the same time. In addition, the character " / " herein generally represents an "or" logical relationship between the associated objects before and after.

[0042] In the present utility model, terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual quantity, primary-secondary or order relationship, etc. between these entities or operations.

[0043] Without more limitations, in the present utility model, the expressions such as "including", "comprising", "having" or other similar expressions used in the statements are intended to cover non-exclusive inclusion. These expressions do not exclude that there may be other elements in the process, method or product including the said elements, so that the process, method or product including a series of elements may not only include those defined elements, but also include other elements not explicitly listed, or also include elements inherent to this process, method or product.

[0044] Similar to the understanding in the Examination Guidelines, in this utility model, expressions such as "greater than", "less than", "exceeding", etc. are understood not to include the base number; expressions such as "above", "below", "within", etc. are understood to include the base number. In addition, in the description of the embodiments of this utility model, the meaning of "a plurality of" is two or more (including two), and similar expressions related to "many" are understood in the same way, such as "multiple groups", "multiple times", etc., unless otherwise specifically defined.

[0045] In the description of the embodiments of this utility model, the spatially related expressions used, such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "perpendicular", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the specific embodiment or the accompanying drawings, and is only for the convenience of describing the specific embodiments of this utility model or for the reader to understand, rather than indicating or implying that the device or component referred to must have a specific position, a specific orientation, or be constructed or operated in a specific orientation, so it cannot be understood as a limitation to the embodiments of this utility model.

[0046] Unless otherwise clearly specified or limited, in the description of the embodiments of this utility model, the terms "installed", "connected", "joined", "fixed", "set", etc. should be understood in a broad sense. For example, the "connection" can be a fixed connection, a detachable connection, or an integral setting; it can be a mechanical connection, an electrical connection, or a communication connection; it can be directly connected, or indirectly connected through an intermediate medium; it can be the communication inside two components or the interaction relationship between two components. For those skilled in the art to which this utility model belongs, the specific meanings of the above terms in the embodiments of this utility model can be understood according to specific circumstances.

[0047] This utility model provides a waterproof performance testing device, which is applicable to the application scenario of detecting the sealing performance of the earphone holes of the earphones to be tested, and can effectively solve the problems of low accuracy of the waterproof detection results of the earphone holes in the prior art and the inability to quantify the waterproof level.

[0048] See Figures 1 to 3 , in this embodiment, the waterproof performance testing device includes a lower mold assembly 1, an upper mold assembly 2, a joint assembly 3, a pumping device (such as a vacuum pump, etc.), a pressure detection device (such as a pressure sensor), and a linear drive module.

[0049] The lower mold assembly 1 is used to place the earphone 100 to be tested provided with an earphone hole 100a. The driving end of the linear driving module is connected to the upper mold assembly 2 and is used to drive the upper mold assembly 2 to move up and down relative to the lower mold assembly 1. The driving end of the linear driving module is connected to the upper mold assembly 2 and is used to drive the upper mold assembly 2 to move up and down relative to the lower mold assembly 1, achieving precise control of the upper mold assembly 2 and improving the automation degree and repeatability of the testing process. The upper mold assembly 2 is located above the lower mold assembly 1 and is used to cooperate with the lower mold assembly 1 to press the earphone 100 to be tested after being driven by the linear driving module.

[0050] The joint assembly 3 is installed at the bottom of the upper mold assembly 2 and is used to press the peripheral position of the earphone hole 100a and is provided with an air extraction hole 3011 communicating with the earphone hole 100a. The air extraction device is communicated with the earphone hole 100a through the air extraction hole 3011 and is used to extract vacuum from the air extraction hole 3011. The pressure detection device is communicated with the air extraction hole 3011 and is used to obtain the pressure parameter of the air extraction hole 3011.

[0051] When the waterproof performance testing device provided in this embodiment is used for testing, first place the earphone 100 to be tested on the lower mold assembly 1, and then the upper mold assembly 2 cooperates with the lower mold assembly 1 to press the earphone, and ensure that the peripheral position of the earphone hole 100a is in close contact with the joint assembly 3 to ensure the airtightness between the air extraction hole 3011 and the earphone hole 100a; then, the air extraction device extracts vacuum from the air extraction hole 3011, and synchronously, the pressure detection device obtains the pressure parameter during the air extraction process in real time. If the sealing performance of the earphone hole 100a is good, the vacuum degree in the air extraction hole 3011 should remain stable; if the sealing performance of the earphone hole 100a is poor, the outside air will enter the air extraction hole 3011 through the earphone hole 100a, ultimately resulting in an increase in the air pressure in the air extraction hole 3011 and difficulty in extracting vacuum. Therefore, the sealing performance of the earphone hole 100a can be judged through the pressure parameter detected by the pressure detection device. Further, according to the testing requirements of different waterproof grades, by adjusting the vacuum degree requirement for the air extraction hole 3011, it can be judged which waterproof grade requirement the sealing performance of the earphone hole 100a specifically meets, thereby realizing the quantitative testing of the waterproof grade. That is, by judging whether the earphone reaches the predetermined waterproof grade through the change of the pressure parameter, the problems of low detection accuracy and inability to quantify the waterproof grade in the prior art are solved.

[0052] Therefore, the waterproof performance testing device provided by the present utility model can effectively solve the problems of low accuracy of the waterproof detection result of the earphone hole 100a and inability to quantify the waterproof grade in the prior art.

[0053] Optionally, the lower die assembly 1 includes a fixed base 101 and a profiling base 102 detachably mounted on the fixed base 101. Correspondingly, the upper die assembly 2 includes an upper die bottom plate 201 and a pressing rubber block 202 mounted on the bottom of the upper die bottom plate 201 for pressing down the earphone 100 to be tested.

[0054] Optionally, a positioning pin 2011 is provided at the bottom of the upper die bottom plate 201, and a positioning hole 1011 for inserting the positioning pin 2011 is provided at the top of the fixed base 101, so as to ensure the accurate alignment of the upper die assembly 2 and the lower die assembly 1, thereby improving the overall stability of the testing device.

[0055] The profiling base 102 is designed to be detachable and replaceable, allowing the testing device to quickly adapt to earphones of different shapes and sizes, improving the flexibility and adaptability of the testing device, and ensuring the consistency and accuracy of the testing process.

[0056] Further, a rubber block insertion hole is provided at the bottom of the upper die bottom plate 201, and the upper end of the pressing rubber block 202 is inserted into the rubber block insertion hole and connected with the rubber block insertion hole in an interference fit manner.

[0057] The function of the pressing rubber block 202 is to press down the earphone 100 to be tested, which can ensure that the earphone remains fixed during the testing process, avoid testing errors caused by the movement of the earphone, and improve the reliability of the test results.

[0058] In this embodiment, the joint assembly 3 includes a profiling pressing block 301, a rigid adapter 302, and an air pipe joint 303. The profiling pressing block 301 is provided with the air extraction hole 3011. The profiling pressing block 301 is mounted on the bottom of the rigid adapter 302, and an air extraction cavity communicating with the air extraction hole 3011 is provided inside the rigid adapter 302. The air pipe joint 303 is mounted on the side position of the rigid adapter 302 for communicating the air extraction cavity to the air extraction device and the pressure detection device through an air pipe.

[0059] Optionally, the profiling pressing block 301 is a flexible component such as silica gel or rubber, so as to improve the airtightness between the profiling pressing block 301 and the earphone 100 to be tested. When using the profiling pressing block 301 to press down the earphone 100 to be tested, the edge position of the bottom surface of the profiling pressing block 301 surrounds the earphone hole 100a, and the air extraction hole 3011 communicating with the earphone hole 100a is provided at the center position of the bottom surface of the profiling pressing block 301. At this time, only by extracting air through the air pipe joint 303, the air extraction hole 3011 can be in a vacuum environment. After maintaining the pressure for a period of time and recording the change of the pressure parameter detected by the pressure detection device, the airtightness of the earphone hole 100a can be quantitatively evaluated.

[0060] Optionally, a pressing block insertion hole is provided at the bottom of the rigid adapter 302, and the upper end of the profiling pressing block 301 is inserted into the pressing block insertion hole and is connected thereto in an interference fit.

[0061] It can be understood that the pressing rubber block 202 is connected to the rubber block insertion hole in an interference fit, and the profiling pressing block 301 is connected to the pressing block insertion hole in an interference fit. When it is necessary to test the earphones 100 to be measured with different specifications and models, only the corresponding pressing rubber block 202 and profiling pressing block 301 need to be replaced, and other components can be reused, which is beneficial to improving the flexibility and adaptability of the testing device.

[0062] In this embodiment, the waterproof performance testing device further includes an alarm device communicatively connected to the pressure detection device. The alarm device is communicatively connected to the pressure detection device and can trigger an alarm in time when abnormal pressure parameters are detected. This monitoring mechanism ensures the continuity and safety of the testing process and prevents unqualified products from entering the market.

[0063] Optionally, the alarm device includes a warning light and / or a buzzer.

[0064] In summary, the waterproof performance testing device provided in this embodiment has the following advantages:

[0065] ① By cooperating the upper die assembly 2 with the lower die assembly 1 to tightly press the earphones 100 to be measured, and using the air extraction holes 3011 of the joint assembly 3 to extract vacuum with an air extraction device, the pressure detection device can obtain the pressure parameters in real time, and the sealing performance of the earphone holes 100a can be accurately judged, realizing the quantitative testing of the waterproof level;

[0066] ② The detachable profiling base 102 design of the lower die assembly 1 enables the testing device to quickly adapt to earphones with different shapes and sizes, improving the flexibility and adaptability of the testing device;

[0067] ③ The alarm device is communicatively connected to the pressure detection device and can trigger an alarm in time when abnormal pressure parameters are detected, ensuring the continuity and safety of the testing process;

[0068] ④ The pressing rubber block 202 is connected to the rubber block insertion hole in an interference fit, and the profiling pressing block 301 is connected to the pressing block insertion hole in an interference fit. When it is necessary to test the earphones 100 to be measured with different specifications and models, only the corresponding pressing rubber block 202 and profiling pressing block 301 need to be replaced, and other components can be reused, which is beneficial to reducing the testing cost;

[0069] ⑤ This device does not need to use water during the testing process, avoiding the environmental pollution and safety hazards that may occur in the traditional testing method.

[0070] It should be noted that the linear drive mechanism mentioned in the present utility model can be a cylinder, a hydraulic cylinder, an electric cylinder, or a motor screw linear module, etc., and the rotary drive mechanism mentioned can be a brushed motor, a brushless motor, or a rotary cylinder, etc. The present utility model does not limit the specific structural forms of the linear drive mechanism and the rotary drive mechanism.

[0071] Finally, it should be noted that although the above embodiments have been described in the text and drawings of the specification of the present application, the patent protection scope of the present application cannot be limited thereby. Any equivalent structure or equivalent process substitution or modification of the technical solutions made by using the content recorded in the text and drawings of the specification of the present application based on the essential concept of the present application, as well as the direct or indirect implementation of the technical solutions of the above embodiments in other related technical fields, etc., are all included in the patent protection scope of the present application.

Claims

1. A waterproof performance testing device, characterized in that, Comprising: A lower die assembly (1) for placing a to-be-tested earphone (100) provided with an earphone hole (100a); An upper die assembly (2) located above the lower die assembly (1) and used for pressing the to-be-tested earphone (100) in cooperation with the lower die assembly (1) after being driven; A connector assembly (3) installed at the bottom of the upper die assembly (2) for pressing the peripheral position of the earphone hole (100a) and provided with an air extraction hole (3011) communicating with the earphone hole (100a); An air extraction device communicating with the earphone hole (100a) through the air extraction hole (3011) for evacuating the air extraction hole (3011); A pressure detection device communicating with the air extraction hole (3011) for obtaining the pressure parameter of the air extraction hole (3011).

2. The waterproof performance testing device according to claim 1, characterized in that The lower die assembly (1) includes a fixed base (101) and a profiling base (102) detachably installed on the fixed base (101).

3. The waterproof performance testing device according to claim 2, wherein, The upper die assembly (2) includes an upper die bottom plate (201) and a pressing rubber block (202) installed at the bottom of the upper die bottom plate (201) for pressing the to-be-tested earphone (100) downward.

4. The waterproof performance testing device according to claim 3, wherein, A rubber block insertion hole is provided at the bottom of the upper die bottom plate (201), and the upper end of the pressing rubber block (202) is inserted into the rubber block insertion hole and is connected with the rubber block insertion hole in an interference fit manner.

5. The waterproof performance testing device according to claim 3, characterized in that A positioning pin (2011) is provided at the bottom of the upper die bottom plate (201), and a positioning hole (1011) for inserting the positioning pin (2011) is provided at the top of the fixed base (101).

6. The waterproof performance testing device according to claim 1, characterized in that, The connector assembly (3) includes: A profiling pressing block (301) provided with the air extraction hole (3011); A rigid adapter (302), the profiling pressing block (301) is installed at the bottom of the rigid adapter (302), and an air extraction cavity communicating with the air extraction hole (3011) is provided inside the rigid adapter (302).

7. The waterproof performance testing device according to claim 6, characterized in that, A pressing block insertion hole is provided at the bottom of the rigid adapter (302), and the upper end of the profiling pressing block (301) is inserted into the pressing block insertion hole and is connected with the pressing block insertion hole in an interference fit manner.

8. The waterproof performance testing device according to claim 6, characterized in that, Further comprising: An air pipe joint (303) installed at the side position of the rigid adapter (302) for communicating the air extraction cavity to the air extraction device and the pressure detection device through an air pipe.

9. The waterproof performance testing device according to claim 1, characterized in that Further comprising: A linear drive module, the drive end of the linear drive module is connected to the upper die assembly (2) for driving the upper die assembly (2) to move up and down relative to the lower die assembly (1).

10. The waterproof performance testing device according to claim 1, wherein, An alarm device communicatively connected to the pressure detection device.

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