A method of pressure testing a consumer electronic product

Abstract

The application belongs to the technical field of consumer electronics, and particularly relates to a consumer electronic product pressure test method, which comprises the following steps: S1: installing a product to be detected, inserting an audio box shell into the inside of a detection seat, embedding the audio box shell in a sealing ring, then adjusting the audio box shell body, and vertically placing the audio box shell in the inside of the detection seat; S2: connecting a pipeline outside the detection seat with a pump body outside, injecting gas into the hollow sealing ring, expanding and extruding the sealing ring on the audio box shell body, and improving the stability of the audio box shell and the detection seat; S3: injecting liquid into the filling port at the bottom of the detection seat, continuously applying hydraulic pressure, inverting the detection seat, and then observing whether liquid drops; S4: after detection, withdrawing the liquid, extracting the gas in the cavity of the sealing ring, and taking down the audio box shell, so that the water pressure penetration resistance test of the audio box shell can be realized.

Description

Technical Field

[0001] This invention belongs to the field of consumer electronics technology, specifically a stress testing method for consumer electronics. Background Technology

[0002] Consumer electronics products have different meanings in countries at different levels of development, and also in different stages of development within the same country. In my country, consumer electronics products refer to audio and video products related to broadcasting and television used by individuals and households, mainly including televisions, DVD players, video recorders, camcorders, radios, tape recorders, speaker systems, record players, laser disc players, and other electronic products.

[0003] As a common household electronic product, speakers come in many styles, including floor-standing, wall-mounted, and portable. Portable speakers allow users to carry and use them flexibly. However, portable speakers are used in a variety of complex and diverse environments, needing to withstand different harsh conditions. Therefore, when manufacturing speakers, it is necessary to consider the usage environment and conduct a series of tests to simulate harsh environments and test the speaker's performance. This provides manufacturers or companies with strong technical support for improving their processes, extending product lifespan and quality, and creating high-quality speaker products, thereby enhancing the company's market competitiveness.

[0004] Therefore, the present invention provides a stress testing method for consumer electronics products. Summary of the Invention

[0005] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.

[0006] The technical solution adopted by this invention to solve its technical problem is: a stress testing method for consumer electronic products, comprising the following steps:

[0007] S1: To install the product to be tested, insert the speaker shell into the test socket so that the speaker shell is embedded in the sealing ring. Then adjust the speaker shell so that the speaker shell is placed vertically inside the test socket.

[0008] S2: Connects the pipe outside the test base to the external pump body, injects gas into the hollow sealing ring, and the sealing ring expands and squeezes against the speaker shell, improving the stability of the speaker shell and the test base;

[0009] S3: Inject liquid into the filling port at the bottom of the test seat, continuously apply hydraulic pressure, invert the test seat, and then observe whether liquid drips;

[0010] S4: After testing, the liquid is withdrawn, and the gas in the cavity of the sealing ring is extracted. The speaker shell is then removed to perform a water pressure penetration test on the speaker shell. During the speaker production process, random checks are conducted on sealing performance and underwater pressure testing. The resulting performance data is then analyzed for reference, facilitating better user experience. Cylindrical speakers typically have speakers at both ends of the shell, secured with screws and sealed with glue. One end of the speaker shell is inserted into the testing socket, and then sealed. Liquid is then injected, and any liquid penetration is observed. A measured amount of gas is injected into the sealing ring to test the sound... The compressive force between the speaker enclosure and the sealing ring is set to a fixed value, and the friction force required for the speaker enclosure to detach from the sealing ring is greater than the hydraulic pressure of the injected liquid. Then, the liquid pressure is gradually increased, and there is an upper limit to the liquid pressure. The upper limit is less than the friction force required for the speaker enclosure to detach from the sealing ring, ensuring that the temperature of the speaker enclosure remains inside the test seat when liquid is injected again. This test method is suitable for inspecting cylindrical speaker enclosures. When the liquid pressure is gradually increased, observe whether there is any liquid seepage or leakage, or control a stable liquid pressure and maintain that pressure for a period of time to observe whether there is any liquid seepage or leakage, and measure the duration of the pressure resistance seal.

[0011] Preferably, the liquid mentioned in S3 is a colored liquid; the inner surface of the speaker shell is generally black and glossy, making it difficult to observe the liquid when water seeps in, while using a milky white liquid makes it easy to see the liquid seepage.

[0012] Preferably, the detection seat in S1 includes a base with an air hole in its side wall extending along the base wall to one side of the upper port and connected to a pipe. A filling seat is fixedly connected to the lower end of the base, with a filling hole in the filling seat and connected to the interior of the base. The inner ring of the base is provided with a sealing ring, which is hollow inside. The outer ring of the sealing ring is fixedly connected to the surface of the inner ring of the base and connected to the outlet end of the air hole. The speaker housing is cylindrical, with a speaker installed at one end of the housing. One end of the housing is inserted into the base, and gas is injected into the sealing ring through the pipe and air passage. The sealing ring collides with and presses against the outer ring of the housing, fixing the housing in place. Then, gas is injected into the filling hole. The test involves inverting the base and housing so that the open end of the housing faces the ground, injecting a specified liquid pressure, and observing whether liquid drips; or injecting a specified gas pressure into the filling port and injecting soapy water into the sampled housing, observing whether there are bubbles in the soapy water inside the housing; injecting a fixed value of liquid pressure or a fixed value of gas pressure, maintaining this pressure for a period of time, and observing whether liquid falls to the ground and whether there are bubbles in the soapy water inside the housing. Furthermore, the pressure resistance sealing performance of the housing can be judged based on the change in the injected quantitative gas pressure. This test method is relatively flexible, and the test fixture can meet both liquid pressure testing and gas pressure testing requirements.

[0013] Preferably, the upper end of the base has an annular expansion groove, and a sleeve is provided inside the expansion groove. One end of the sleeve is slidably and sealed to the expansion groove. An air hole is also provided inside the side wall of the sleeve, extending along the inner wall of the sleeve to the other end of the sleeve and connected to a pipe. Multiple limiting ropes are uniformly fixed between the upper end of the base and the horizontal surface of the other end of the sleeve. A sealing ring is also provided inside the sleeve, with the sealing ring being hollow. The outer ring of the sealing ring is fixed to the surface of the inner ring of the sleeve and connected to the outlet end of the air hole. The same manufacturer may design different sized shells for the same shape of speaker. Cylindrical speaker diameters have different specifications. The expansion deformation of the gas injected into the sealing ring is limited; therefore, a sleeve is provided, and a sealing ring is also provided inside the sleeve. The initial diameter and deformation of the sealing ring inside the sleeve are the same as the initial diameter of the sealing ring inside the base. Different diameters and deformations can be addressed by inserting the larger diameter tube into the sealing ring inside the sleeve, then injecting gas into the pipe and air passage, or injecting liquid or gas into the filling hole. This method is suitable for sealing pressure testing of speaker enclosures of different sizes. The telescopic design between the sleeve and the base saves space on the testing seat. When the speaker enclosure is inserted into the base for testing, the sealing ring inside the sleeve can assist in pressing against the outer wall of the enclosure. Although it doesn't provide a pressing and fixing effect, it can center the enclosure, making the sealing ring inside the base fit more closely to the enclosure surface, ensuring a tight seal between the sealing ring and the enclosure, and improving the accuracy of the speaker enclosure pressure test. Alternatively, a telescopic groove can be opened on one end of the sleeve, and another sleeve can be installed in the telescopic groove, with another sleeve extending above the first sleeve. This method is suitable for speaker enclosures of different sizes.

[0014] Preferably, the inner ring of the sealing ring is provided with an annular rubber strip, and the outer ring of the annular rubber strip is fixed to the middle position of the inner ring surface of the sealing ring. The inner ring surface of the annular rubber strip is arc-shaped. In the design of the speaker, a layer of rubber or fabric is usually bonded and wrapped on the outer surface of the shell to improve the feel and comfort. In order to improve the firmness between the rubber layer or fabric layer and the shell, manufacturers often make annular grooves on the surface of the shell and fill the grooves with the rubber layer or fabric layer. In this invention, the groove is used to further improve the sealing and firmness between the shell and the sealing ring, so as to prevent the shell from accidentally detaching from the sealing ring on the base or sleeve during the pressure test. The expansion of the sealing ring squeezes the annular rubber strip into the groove of the shell, squeezing and fixing the speaker shell, improving stability and sealing, thereby improving the accuracy of the pressure test.

[0015] Preferably, a cylindrical rubber ring is fixed to the inner surface of the annular rubber strip, one end of the outer ring of the rubber ring is fixed to the annular rubber strip, and the other end of the rubber ring extends out as a sleeve / base. During the process of embedding the speaker housing into the sealing ring, the housing is first placed inside the rubber ring, while the rubber ring is stretched outward and the annular rubber strip is pulled to flip outward. Then, the annular rubber strip engages with the groove on the housing, so that the annular rubber strip can be completely embedded in the groove. This prevents the housing surface from squeezing, bending, and wrinkling the annular rubber strip after it is inserted into the rubber strip, causing it to misalign with the groove and affecting the possibility of the annular rubber strip being embedded in the groove.

[0016] Preferably, the other end of the rubber ring is fixed to a rubber ring, the diameter of which is greater than the wall thickness of the rubber ring. When the housing is embedded in the sealing ring inside the sleeve, the rubber rings on the sealing ring inside the base should be stacked and squeezed into the base to avoid affecting the housing's placement within the base. However, the elastic and soft rubber ring would block the rubber ring inside the sleeve, and the housing would be squeezed onto the stacked rubber rings, resulting in a lack of firmness between the housing and the sleeve. Therefore, a rubber ring is provided to squeeze and fill the base together with the rubber ring. The elasticity of the rubber ring restricts the rubber ring within the base. Thus, when the housing is placed, the surface of the housing can smoothly adhere to the single-layer sealing ring inside the sleeve, and the annular rubber strip can fit into the groove.

[0017] Preferably, the sealing ring contains an elastic ring, the edge of which is fixed to the inside of the sealing ring, dividing the hollow portion of the sealing ring into a first cavity and a second cavity. Each of the first and second cavities is connected to an air passage. The air passage is a double-layered ventilation passage; one passage connects to the first cavity, which is located near the inner wall of the sleeve / base, while the other passage connects to the second cavity. The second cavity contains multiple push rods, one end of which is fixed to the surface of the elastic ring, and the other end of which passes through the sealing ring and presses against the inside of the annular rubber strip. Gas is injected into the passage, flowing into the first and second cavities in two separate streams. The second cavity expands, causing the sealing ring to adhere to and press against the housing, thus fixing the housing in place. The first cavity expands, pushing the push rods towards the annular rubber strip, increasing the deformation of the annular rubber strip and allowing more of it to embed into the groove, improving the seal between the annular rubber strip and the groove. This, in turn, improves the sealing performance and stability between the housing and the sealing ring, resulting in more accurate test results.

[0018] Preferably, the annular rubber strip is provided with a plurality of push blocks evenly inside, the number of push blocks being the same as the number of push rods, and the other end of the push rod rests on the push block; the push rod rests on the push block, and the push block then presses against the annular rubber strip, making the inner ring of the annular rubber strip protrude and deform more evenly, and the inner ring of the annular rubber strip fits more closely to the inner sidewall of the groove, resulting in better sealing.

[0019] Preferably, multiple notches are formed on the inner surface of the annular rubber strip. The notches are located between two adjacent push blocks. The top view of the notch is triangular in shape, with the tip of the notch located inside the annular rubber strip and the flat end of the notch located outside the inner ring of the annular rubber strip. When the push block is pressed against the annular rubber strip, the inner ring of the annular rubber strip shrinks inward, which can cause wrinkles in the inner ring of the annular rubber strip. The notches prevent the inner ring of the annular rubber strip from shrinking inward and avoid wrinkles. At the same time, the notches gradually close to ensure the sealing between the annular rubber strip and the inner wall of the groove.

[0020] The beneficial effects of this invention are as follows:

[0021] 1. The present invention provides a pressure testing method for consumer electronic products. This testing method is suitable for inspecting cylindrical speaker boxes. When the liquid pressure is gradually increased, it is observed whether there is liquid penetration or leakage. Alternatively, a stable liquid pressure is controlled and maintained at that pressure for a period of time, and it is observed whether there is liquid penetration or leakage. The duration of pressure resistance and sealing is measured, providing strong support for the production of high-quality, high-performance speaker boxes.

[0022] 2. The pressure testing method for consumer electronic products described in this invention uses a testing socket suitable for pressure testing of cylindrical speaker boxes. The testing method is flexible, and the testing socket can meet both liquid pressure testing and gas pressure testing requirements. Attached Figure Description

[0023] The invention will now be further described with reference to the accompanying drawings.

[0024] Figure 1 This is a flowchart of the pressure testing method in this invention;

[0025] Figure 2 This is a front view of the mating of the detection seat and the sleeve in this invention;

[0026] Figure 3 This is a cross-sectional view of the mating of the detection seat and the sleeve in this invention;

[0027] Figure 4 This is a perspective view of the fit between the rubber ring and the sealing ring in this invention;

[0028] Figure 5 This is a cross-sectional view of the fit between the rubber ring and the sealing ring in this invention;

[0029] Figure 6 This is a diagram showing the fit between the push rod and the annular rubber strip in this invention;

[0030] Figure 7 This is a cross-sectional view of the push rod and push block in this invention.

[0031] In the diagram: Detection seat 1, base 2, filling seat 4, filling hole 5, sealing ring 6, pipe 7, expansion groove 8, sleeve 9, limit rope 10, ring rubber strip 11, rubber ring 12, rubber ring 13, cavity 15, cavity 2 16, push rod 17, push block 18, notch 19. Detailed Implementation

[0032] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0033] Example 1:

[0034] Reference Figure 1 and Figure 2 A stress testing method for consumer electronics products, comprising the following steps:

[0035] S1: To install the product to be tested, insert the speaker shell into the test base 1 so that the speaker shell is embedded in the sealing ring 6. Then adjust the speaker shell so that the speaker shell is vertically placed inside the test base 1.

[0036] S2: The pipe 7 connecting the outside of the detection base 1 is connected to the external pump body to inject gas into the hollow sealing ring 6. The sealing ring 6 expands and squeezes against the speaker shell, improving the stability of the speaker shell and the detection base 1.

[0037] S3: Inject liquid into the filling port at the bottom of the test seat 1, continuously apply hydraulic pressure, invert the test seat 1, and then observe whether liquid drips;

[0038] S4: After testing, the liquid is withdrawn, and the gas in the cavity of the sealing ring 6 is extracted. The speaker shell is then removed to perform a water pressure penetration test on the speaker shell. During the speaker production process, random checks are conducted on the sealing performance and underwater pressure testing. The performance data of the speaker product is then analyzed for reference, facilitating better user experience. Cylindrical speakers typically have speakers at both ends of the speaker shell, secured with screws and sealed with glue. One end of the speaker shell is inserted into the testing base 1, and then the end of the speaker shell is sealed. Liquid is then injected, and any liquid penetration is observed. A measured amount of gas is injected into the sealing ring 6 to test the speaker's resistance to water pressure penetration. The compressive force between the outer casing and the sealing ring 6 is set to a fixed value, and the friction force required for the outer casing to detach from the sealing ring 6 is greater than the hydraulic pressure of the injected liquid. Then, the liquid pressure is gradually increased, and there is an upper limit to the liquid pressure. The upper limit is less than the friction force required for the outer casing to detach from the sealing ring 6, ensuring that the temperature of the outer casing remains inside the test seat when liquid is injected again. This test method is suitable for inspecting cylindrical speakers. When the liquid pressure is gradually increased, observe whether there is any liquid seepage or leakage, or control a stable liquid pressure and maintain that pressure for a period of time to observe whether there is any liquid seepage or leakage, and measure the duration of the pressure resistance seal.

[0039] The liquid described in S3 is a colored liquid; the inner surface of the speaker casing is generally black and glossy, making it difficult to observe the liquid when water seeps in, but if a milky white liquid is used, the liquid seepage can be easily seen.

[0040] Reference Figure 2 and Figure 3The detection seat 1 described in S1 includes a base 2. An air hole is formed in the side wall of the base 2, extending along the inner wall to one side of the upper port of the base 2 and connecting to a pipe 7. A filling seat 4 is fixedly connected to the lower end of the base 2, with a filling hole 5 inside the filling seat 4, connecting to the interior of the base 2. A sealing ring 6 is provided on the inner ring of the base 2, the sealing ring 6 being hollow inside. The outer ring of the sealing ring 6 is fixedly connected to the surface of the inner ring of the base 2 and connects to the outlet end of the air hole. The speaker housing is cylindrical, with a speaker mounted on one end of the housing. One end of the housing is inserted into the base 2, and gas is injected into the sealing ring 6 through the pipe 7 and the air passage. The sealing ring 6 collides with and presses against the outer ring of the housing, fixing the housing in place. Inject liquid into filling hole 5, invert base 2 and shell so that the open end of shell faces the ground, inject a specified liquid pressure, and observe whether liquid drips; or inject a specified gas pressure into filling hole 5 and inject soapy water into the sampled shell, and observe whether there are bubbles in the soapy water inside the shell; inject a fixed value of liquid pressure or a fixed value of gas pressure, maintain the pressure for a period of time, and observe whether liquid falls to the ground and whether there are bubbles in the soapy water inside the shell. Furthermore, the pressure resistance sealing performance of the shell can also be judged based on the change of the injected quantitative gas pressure. This test method is relatively flexible, and test seat 1 can meet the requirements of liquid pressure test and gas pressure test.

[0041] Reference Figure 3The upper end of the base 2 has an annular telescopic groove 8, and a sleeve 9 is provided inside the telescopic groove 8. One end of the sleeve 9 is slidably and sealed to the telescopic groove 8. An air hole is also provided inside the side wall of the sleeve 9, which extends along the inner wall of the sleeve 9 to the other end of the sleeve 9 and is connected to a pipe 7. Multiple limiting pull ropes 10 are uniformly fixed between the upper end of the base 2 and the horizontal surface of the other end of the sleeve 9. A sealing ring 6 is also provided in the inner ring of the sleeve 9. The inner part of the sealing ring 6 is hollow. The outer ring of the sealing ring 6 is fixed to the surface of the inner ring of the sleeve 9 and is connected to the air outlet of the air hole. The same manufacturer may design different sizes of shells for the same shape of speaker. The diameter of cylindrical speaker has different specifications. The expansion and deformation of the gas injected into the sealing ring 6 is limited. Therefore, the sleeve 9 is set, and a sealing ring 6 is also set inside the sleeve 9. The initial diameter and deformation of the sealing ring 6 in the sleeve 9 are the same as those of the sealing ring 6 in the base 2. Different initial diameters and deformations can be achieved by inserting the larger diameter tube into the sealing ring 6 inside the sleeve 9, then injecting gas into the pipe 7 and air passage, and injecting liquid or gas into the filling hole 5. This method is suitable for sealing pressure testing of speaker enclosures of different sizes. The telescopic design between the sleeve 9 and the base 2 saves space occupied by the test seat 1. When the speaker enclosure is inserted into the base 2 for testing, the sealing ring 6 inside the sleeve 9 can assist in pressing against the outer wall of the enclosure. Although it does not provide a pressing and fixing effect, it can center the enclosure, making the sealing ring 6 inside the base 2 fit more closely to the surface of the enclosure, ensuring the sealing performance between the sealing ring 6 and the enclosure, and improving the accuracy of the speaker enclosure pressure test. Alternatively, a telescopic groove 8 can be opened on one end face of the sleeve 9, and another sleeve 9 can be installed in the telescopic groove 8 on the sleeve 9. A further sleeve 9 can be extended above the original sleeve 9, making this method suitable for speaker enclosures of different sizes.

[0042] Reference Figure 5 The sealing ring 6 has an inner ring with an annular rubber strip 11, and the outer ring of the annular rubber strip 11 is fixed to the middle of the inner ring surface of the sealing ring 6. The inner ring surface of the annular rubber strip 11 is arc-shaped. When designing a speaker, a layer of rubber or fabric is usually bonded to the outer surface of the shell to improve the feel and comfort. In order to improve the firmness between the rubber or fabric layer and the shell, manufacturers often make annular grooves on the surface of the shell and fill the grooves with the rubber or fabric layer. In this invention, the grooves are used to further improve the sealing and firmness between the shell and the sealing ring 6, so as to prevent the shell from accidentally detaching from the sealing ring 6 on the base 2 or sleeve 9 during pressure testing. The expansion of the sealing ring 6 squeezes the annular rubber strip 11 into the groove of the shell, squeezing and fixing the speaker shell, improving stability and sealing, thereby improving the accuracy of pressure testing.

[0043] Reference Figure 4The inner surface of the annular rubber strip 11 is fixed with a cylindrical rubber ring 12. One end of the rubber ring 12 is fixed to the annular rubber strip 11, and the other end of the rubber ring 12 extends out of the sleeve 9 / base 2. During the process of embedding the speaker housing into the sealing ring 6, the housing is first placed inside the rubber ring 12, and the rubber ring 12 is stretched outward and the annular rubber strip 11 is pulled to the outside. Then the annular rubber strip 11 cooperates with the groove on the housing, so that the annular rubber strip 11 can be completely embedded in the groove. This prevents the housing surface from squeezing, bending and wrinkling the annular rubber strip 11 after the housing is inserted into the rubber strip, causing it to be misaligned with the groove and affecting the possibility of the annular rubber strip 11 being embedded in the groove.

[0044] Reference Figure 4 and Figure 5 The other end of the rubber ring 12 is fixed to a rubber ring 13, the diameter of which is greater than the wall thickness of the rubber ring 12. When the housing is embedded in the sealing ring 6 inside the sleeve 9, the rubber rings 12 on the sealing ring 6 inside the base 2 should be stacked and squeezed inside the base 2 to avoid affecting the housing being placed inside the base 2. However, the elastic and soft rubber rings 12 would block the rubber rings 12 inside the sleeve 9, and the housing would be squeezed on the stacked rubber rings 12, resulting in a lack of firmness between the housing and the sleeve 9. Therefore, a rubber ring 13 is provided to squeeze and fill the base 2 together with the rubber rings 12. The elasticity of the rubber ring 13 restricts the rubber rings 12 inside the base 2. Therefore, when the housing is placed, the surface of the housing can be smoothly attached to the single-layer sealing ring 6 inside the sleeve 9, and the annular rubber strip 11 can be attached to the groove.

[0045] Reference Figure 5 and Figure 6 The sealing ring 6 contains an elastic ring, the edge of which is fixed to the inside of the sealing ring 6, dividing the hollow portion of the sealing ring 6 into a first cavity 15 and a second cavity 16. Both the first cavity 15 and the second cavity 16 are connected to an air passage. The air passage is a double-layered ventilation passage; one passage is connected to the first cavity 15, which is located near the inner wall of the sleeve 9 / base 2. The other passage is connected to the second cavity 16, which contains multiple push rods 17. One end of each push rod 17 is fixed to the surface of the elastic ring, and the other end of each push rod 17 passes through the sealing ring 6 and abuts against it. Gas is injected into the pipe 7 inside the annular rubber strip 11. The gas is injected into the first chamber 15 and the second chamber 16 in two streams. The second chamber 16 expands, causing the sealing ring 6 to adhere to and be pressed against the shell, thus squeezing and fixing the shell. The first chamber 15 expands, pushing the push rod 17 to move towards the annular rubber strip 11, increasing the deformation of the annular rubber strip 11, so that more annular rubber strips are embedded in the groove, improving the sealing between the annular rubber strip 11 and the groove, thereby improving the sealing and stability between the shell and the sealing ring 6, making the test results more accurate.

[0046] Example 2:

[0047] Reference Figure 7 Compared with Embodiment 1, as another embodiment of the present invention, the annular rubber strip 11 is provided with a plurality of push blocks 18 evenly inside, the number of push blocks 18 being the same as the number of push rods 17, and the other end of the push rod 17 rests on the push block 18; the push rod 17 rests on the push block 18, and the push block 18 then presses against the annular rubber strip 11, making the inner ring of the annular rubber strip 11 protrude and deform more evenly, and the inner ring of the annular rubber strip 11 fits more closely to the inner sidewall of the groove, resulting in better sealing;

[0048] Multiple notches 19 are made on the inner surface of the annular rubber strip 11. The notches 19 are located between two adjacent push blocks 18. The top view of the notch 19 is triangular in shape. The tip of the notch 19 is located inside the annular rubber strip 11, and the flat end of the notch 19 is located outside the inner ring of the annular rubber strip 11. When the push block 18 presses against the annular rubber strip 11, the inner ring of the annular rubber strip 11 shrinks inward, which will cause wrinkles in the inner ring of the annular rubber strip 11. The notches 19 are made to prevent wrinkles from appearing when the inner ring of the annular rubber strip 11 shrinks inward. At the same time, the notches 19 gradually close to ensure the sealing between the annular rubber strip 11 and the inner wall of the groove.

[0049] Working Principle: During the speaker production process, random sampling tests are conducted to check the sealing performance and underwater pressure. The resulting performance data is then analyzed for reference, facilitating better user experience. Cylindrical speakers typically have speakers at both ends of the speaker housing, secured with screws and sealed with glue. One end of the speaker housing is inserted into the testing seat 1, and then that end is sealed. Liquid is then injected, and any leakage is observed. A fixed amount of gas is injected into the sealing ring 6, setting the pressure between the speaker housing and the sealing ring 6 to a fixed value. The friction force of the speaker housing detaching from the sealing ring 6 must be greater than the hydraulic pressure of the injected liquid. Then, gradually... Increase the liquid pressure, with an upper limit. If the upper limit is less than the frictional force required for the speaker housing to detach from the sealing ring 6, ensure that the speaker housing remains within the test socket when liquid is re-injected. This test method is suitable for inspecting cylindrical speakers. Observe for liquid seepage or leakage as the liquid pressure is gradually increased, or maintain a stable liquid pressure for a period of time and observe for liquid seepage or leakage, measuring the duration of the pressure resistance seal. The inner surface of the speaker housing is generally black and glossy, making it difficult to observe the liquid when exposed to clear water. However, using a milky white liquid makes liquid seepage very easily.

[0050] The speaker housing is cylindrical, with a speaker mounted at one end. One end of the housing is inserted into the base 2, and gas is injected into the sealing ring 6 through the pipe 7 and the air passage. The sealing ring 6 collides with and presses against the outer ring of the housing, fixing the housing in place. Then, liquid is injected into the filling hole 5. The base 2 and the housing are inverted so that the open end of the housing faces the ground, and a specified liquid pressure is injected to observe whether liquid drips. Alternatively, a specified gas pressure is injected into the filling hole 5, and soapy water is injected into the sampled housing to observe whether there are bubbles in the soapy water inside the housing. A fixed value of liquid pressure or a fixed value of gas pressure is injected and maintained at that pressure for a period of time, and then it is observed whether liquid falls to the ground and whether there are bubbles in the soapy water inside the housing. Furthermore, the pressure resistance sealing performance of the housing can also be judged based on the change in the injected quantitative gas pressure. This test method is relatively flexible, and the test seat 1 can meet both liquid pressure test and gas pressure test.

[0051] The same manufacturer may design different sized shells for speaker enclosures of the same shape. Cylindrical speaker enclosures come in different diameters. Since the expansion and deformation of the gas injected into the sealing ring 6 is limited, a sleeve 9 is used. The sleeve 9 also contains a sealing ring 6. The initial diameter and deformation of the sealing ring 6 inside the sleeve 9 differ from those of the sealing ring 6 inside the base 2. The larger diameter ring is inserted into the sealing ring 6 inside the sleeve 9, and then gas is injected into the pipe 7 and air passage. Liquid or gas is injected into the filling hole 5. This method is suitable for sealing pressure testing of speaker enclosures of different sizes. Meanwhile, the sleeve... The telescopic design between sleeve 9 and base 2 saves space occupied by test seat 1. When the speaker housing is inserted into base 2 for testing, the sealing ring 6 inside sleeve 9 can be used to assist in pressing against the outer wall of the housing. Although it does not play a pressing and fixing role, it can center the housing so that the sealing ring 6 inside base 2 fits more closely to the surface of the housing, ensuring the sealing performance between the sealing ring 6 and the housing and improving the accuracy of the speaker housing pressure test. Alternatively, a telescopic groove 8 can be opened on one end face of sleeve 9, and another sleeve 9 can be installed in the telescopic groove 8 on sleeve 9. A sleeve 9 can also be extended above sleeve 9, which is suitable for speaker housings of different sizes.

[0052] In speaker design, a layer of rubber or fabric is typically bonded to the outer surface of the casing to improve tactile comfort. To enhance the bond between the rubber or fabric layer and the casing, manufacturers often create annular grooves on the casing surface and fill these grooves with the rubber or fabric layer. In this invention, the grooves are used to further improve the sealing and bonding strength between the casing and the sealing ring 6, preventing the casing from accidentally detaching from the sealing ring 6 on the base 2 or sleeve 9 during pressure testing. The expansion of the sealing ring 6 compresses the annular rubber strip 11 into the groove of the casing, securing the speaker casing and improving stability and sealing, thereby enhancing the accuracy of the pressure test.

[0053] During the process of embedding the speaker housing into the sealing ring 6, the housing is first placed inside the rubber ring 12, and the rubber ring 12 is stretched outward and the annular rubber strip 11 is pulled to flip outward. Then the annular rubber strip 11 cooperates with the groove on the housing, so that the annular rubber strip 11 can be completely embedded in the groove. This prevents the annular rubber strip 11 from being squeezed, bent and wrinkled by the surface of the housing after it is inserted into the rubber strip, which would cause it to be misaligned with the groove and affect the possibility of the annular rubber strip 11 being embedded in the groove.

[0054] When the housing is embedded in the sealing ring 6 inside the sleeve 9, the rubber rings 12 on the sealing ring 6 inside the base 2 should be stacked and squeezed inside the base 2 to avoid affecting the housing being placed inside the base 2. However, the elastic and soft rubber rings 12 will block the rubber rings 12 inside the sleeve 9, and the housing will be squeezed on the stacked rubber rings 12, resulting in a lack of firmness between the housing and the sleeve 9. Therefore, a rubber ring 13 is provided, and the rubber ring 13 together with the rubber rings 12 is squeezed and filled into the base 2. The elasticity of the rubber ring 13 restricts the rubber rings 12 inside the base 2. Therefore, when the housing is placed, the surface of the housing can be smoothly attached to the single-layer sealing ring 6 inside the sleeve 9, and the annular rubber strip 11 can fit into the groove.

[0055] Gas is injected into pipe 7 and injected into chamber 15 and chamber 16 in two streams. Chamber 16 expands, causing the sealing ring 6 to adhere to and press against the shell, thus fixing the shell in place. Chamber 15 expands, pushing the push rod 17 towards the annular rubber strip 11, increasing the deformation of the annular rubber strip 11, so that more of the annular rubber strip is embedded in the groove, improving the sealing between the annular rubber strip 11 and the groove, thereby improving the sealing and stability between the shell and the sealing ring 6, making the test results more accurate.

[0056] The push rod 17 presses against the push block 18, and the push block 18 then presses against the annular rubber strip 11, making the inner ring of the annular rubber strip 11 protrude and deform more evenly, and the inner ring of the annular rubber strip 11 fits more closely to the inner wall of the groove, resulting in better sealing.

[0057] The pusher block 18 presses against the annular rubber strip 11, causing the inner ring of the annular rubber strip 11 to shrink inward, which will cause wrinkles in the inner ring of the annular rubber strip 11. The notch 19 is opened to prevent the inner ring of the annular rubber strip 11 from shrinking inward and wrinkles from appearing. At the same time, the notch 19 gradually closes to ensure the sealing between the annular rubber strip 11 and the inner wall of the groove.

[0058] In the description of this invention, it should be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of this invention.

[0059] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A stress testing method for consumer electronics products, characterized in that: The stress testing method includes the following steps: S1: Install the product to be tested, insert the speaker shell to be tested into the test base (1) so that the speaker shell is embedded in the sealing ring (6), and then adjust the speaker shell so that the speaker shell is placed vertically inside the test base (1); S2: Connect the pipe (7) outside the detection seat (1) to the external pump body, inject gas into the hollow sealing ring (6), the sealing ring (6) expands and squeezes the speaker shell, improving the stability of the speaker shell and the detection seat (1); S3: Inject liquid into the filling port at the bottom of the test seat (1), continuously apply hydraulic pressure, invert the test seat (1), and then observe whether liquid drips; S4: After the test, the liquid is drawn back and the gas in the cavity of the sealing ring (6) is extracted. The speaker shell is then removed, and the water pressure penetration resistance test of the speaker shell can be achieved. The detection seat (1) described in S1 includes a base (2), with an air hole in the side wall of the base (2). The air hole extends along the inner wall of the base (2) to one side of the upper port of the base (2) and connects to the pipe (7). A filling seat (4) is fixedly connected to the lower end of the base (2). A filling hole (5) is opened in the filling seat (4) and connects to the inside of the base (2). A sealing ring (6) is provided in the inner ring of the base (2). The sealing ring (6) is hollow inside. The outer ring of the sealing ring (6) is fixedly connected to the surface of the inner ring of the base (2) and connects to the air outlet of the air hole. The upper end of the base (2) is provided with an annular expansion groove (8), and a sleeve (9) is provided in the expansion groove (8). One end of the sleeve (9) is slidably and sealed in the expansion groove (8). An air hole is also provided in the side wall of the sleeve (9). The air hole extends along the inner wall of the sleeve (9) to the other end of the sleeve (9) and is connected to a pipe (7). Multiple limiting pull ropes (10) are uniformly fixed between the upper end of the base (2) and the horizontal surface of the other end of the sleeve (9). A sealing ring (6) is also provided in the inner ring of the sleeve (9). The inner part of the sealing ring (6) is hollow. The outer ring of the sealing ring (6) is fixed to the surface of the inner ring of the sleeve (9) and is connected to the air outlet of the air hole. The inner ring of the sealing ring (6) is provided with an annular rubber strip (11), and the outer ring of the annular rubber strip (11) is fixed to the middle position of the inner ring surface of the sealing ring (6). The inner ring surface of the annular rubber strip (11) is arc-shaped. The sealing ring (6) is provided with an elastic ring. The edge of the elastic ring is fixed to the inside of the sealing ring (6), dividing the hollow part inside the sealing ring (6) into a first cavity (15) and a second cavity (16). The first cavity (15) and the second cavity (16) are each connected to the air passage. The air passage is a double-layered air passage. One air passage is connected to the first cavity (15). The first cavity (15) is close to the inner wall of the sleeve (9) / base (2). The other air passage is connected to the second cavity (16). The second cavity (16) is provided with multiple push rods (17). One end of the push rod (17) is fixed to the surface of the elastic ring. The other end of the push rod (17) passes through the sealing ring (6) and is pushed against the inside of the annular rubber strip (11). The annular rubber strip (11) is uniformly provided with multiple push blocks (18), the number of push blocks (18) is the same as the number of push rods (17), and the other end of the push rod (17) rests on the push block (18).

2. The stress testing method for consumer electronics products according to claim 1, characterized in that: The liquid described in S3 is a colored liquid.

3. The stress testing method for consumer electronics products according to claim 2, characterized in that: A cylindrical rubber ring (12) is fixed to the inner surface of the annular rubber strip (11). One end of the rubber ring (12) is fixed to the annular rubber strip (11), and the other end of the rubber ring (12) extends out of the sleeve (9) / base (2).

4. The stress testing method for consumer electronics products according to claim 3, characterized in that: The other end of the rubber ring (12) is fixed to a rubber ring (13), the diameter of which is greater than the wall thickness of the rubber ring (12).

5. The stress testing method for consumer electronics products according to claim 4, characterized in that: Multiple notches (19) are opened on the inner surface of the annular rubber strip (11). The notches (19) are located between two adjacent push blocks (18). The top view of the notches (19) is triangular in shape. The tip of the notches (19) is located inside the annular rubber strip (11), and the flat end of the notches (19) is located outside the inner ring of the annular rubber strip (11).

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