Testing device for miniature waterproof loudspeaker

Abstract

The invention discloses a testing device for a miniature waterproof loudspeaker, and relates to the technical field of loudspeaker testing, the testing device comprises a testing base, a side end supporting frame is arranged on the side face of the testing base, a grounding piece is arranged at the bottom of the side end supporting frame, and the bottom of the grounding piece is flush with the bottom of the testing base. A sealing assembly is arranged at the top of the test base, a test assembly is arranged at the top of the sealing assembly, an inner placement assembly is arranged in the test base, and the sealing assembly comprises an inner sealing gasket, an air bag piece, an outer-layer elastic cushion, a sponge column piece, a hollow connecting box, a connecting piece, a connecting air pipe, an air pump and a sealing box. According to the testing device of the miniature waterproof loudspeaker, the sealing box is attached to the inner wall of the inner sealing gasket when being inserted, the inner sealing gasket needs to be tightly attached to the surface of the sealing box during testing, air leakage caused by gaps cannot occur, the sealing performance during testing can be guaranteed, and detection of the miniature waterproof loudspeaker is completed.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of loudspeaker testing, in particular to a test device for a waterproof miniature loudspeaker. BACKGROUND

[0002] With the development of electronic device miniaturization and portability, miniature loudspeakers are widely used in smart phones, Bluetooth earphones, smart watches and other devices. Waterproof function has become an important requirement for these devices, especially in outdoor sports, underwater use and other scenarios. At present, the demand for miniature waterproof loudspeakers in the market is increasing, but the testing technology for their waterproof performance still has certain limitations. Traditional testing methods mostly use water immersion or high-pressure water spraying methods. Although these methods are intuitive, they have problems such as long testing period, strong destructiveness, and inability to quantify test results. In addition, with the reduction of loudspeaker size, the applicability of traditional testing methods is further reduced.

[0003] The existing testing methods generally have the following defects: Water immersion and high-pressure water spraying are destructive tests that may cause damage to the loudspeaker and cannot be used for rapid detection in mass production.

[0004] Although the air pressure method can achieve non-destructive testing, the existing equipment has poor adaptability to miniature loudspeakers, insufficient testing precision, and cannot simulate dynamic pressure changes in actual use.

[0005] The existing methods cannot simultaneously meet the requirements of rapid, accurate and non-destructive testing, and the effect is not good when used, which needs to be improved. SUMMARY

[0006] To achieve the above purpose, the present application provides the following technical scheme: a test device for a miniature waterproof loudspeaker, comprising a test base, a side end support frame is arranged on the side of the test base, a grounding piece is arranged at the bottom of the side end support frame, the bottom of the grounding piece is flush with the bottom of the test base, a sealing assembly is arranged at the top of the test base, a test assembly is arranged at the top of the sealing assembly, and an internal placement assembly is arranged in the test base. The sealing assembly comprises an inner sealing pad, an air bag piece, an outer elastic pad, a sponge column piece, a hollow connection box, a connection piece, a connection air pipe, a gas pump and a sealing box, the inner sealing pad is connected to the top of the test base, the air bag piece is connected to the surface of the inner sealing pad, the outer elastic pad is connected to the surface of the air bag piece, the sponge column piece is connected to the inside of the outer elastic pad, the hollow connection box is connected to the top front surface of the air bag piece, the connection piece is connected to the front surface of the hollow connection box, the connection air pipe is connected to the front surface of the connection piece, and the gas pump is connected to the top of the test base.

[0007] Preferably, the test assembly comprises an air pressure sensor, a mounting plate, a placement seat, a data display plate, a connecting seat, a connecting cable, an air inlet pipe body, a threaded connecting section, a sealing cover and a thumb sleeve, the air pressure sensor is connected to the top of the sealing box, the mounting plate is connected to the right side of the air pressure sensor, the placement seat is connected to the top of the air pressure sensor, the data display plate is connected to the inside of the placement seat, the connecting seat is connected to the right side of the data display plate, the connecting cable is connected to the right side of the connecting seat, the end of the connecting cable away from the right side of the connecting seat is connected to the top of the air pressure sensor, the air inlet pipe body is connected to the back of the sealing box, and the sealing cover is connected to the back of the threaded connecting section.

[0008] Preferably, the inner placement assembly comprises an outer placement pad, a spring, an inner placement pad and a placement block, the outer placement pad is connected to the inside of the placement block, the spring is connected to the inner ring of the outer placement pad, the placement block is connected to the inside of the test base, the spring is distributed on the left side, the right side and the back of the inner placement pad, and the front surface of the inner placement pad is connected to the inside front surface of the outer placement pad.

[0009] Preferably, the distinguishing assembly comprises an accommodating inclined pad, a placement plate, a placement piece, a stepping motor, a connecting thin rod, an inner placement rectangular plate, an accommodating rectangular block, a hydraulic telescopic rod and a support plate, rectangular hollow grooves are formed in the top of the placement block on both sides, the accommodating inclined pad is fixedly connected to the inside of the placement block on both sides, the placement plate is fixedly connected to the side surface of the outer placement pad, a rectangular sliding groove is formed in the front surface of the placement block, the support plate is fixedly connected to the front surface of the placement block close to the bottom, the hydraulic telescopic rod is fixedly connected to the top of the support plate, the accommodating rectangular block is fixedly connected to the top of the hydraulic telescopic rod, the placement piece is fixedly connected to the top of the accommodating rectangular block, the stepping motor is fixedly connected to the back surface of the placement piece, the connecting thin rod is fixedly connected to the output shaft of the stepping motor, the diameter of the connecting thin rod is matched with the width of the rectangular sliding groove, and the inner placement rectangular plate is fixedly connected to the back surface of the connecting thin rod.

[0010] Preferably, a placement rectangular groove is formed in the inside of the test base, and the area of the placement rectangular groove is matched with the inner area of the inner sealing pad.

[0011] Preferably, a placement groove is formed in the inside of the outer elastic pad, and the diameter of the sponge column piece is matched with the thickness of the placement groove.

[0012] Preferably, the sealing box is inserted into the inside of the placement rectangular groove, the bottom area of the sealing box is matched with the area of the placement rectangular groove, and the sealing box is slidingly connected to the inner wall of the inner sealing pad.

[0013] Preferably, a threaded groove is connected to the surface of the air inlet pipe body close to the back surface, and the threaded connecting section is threadedly connected to the surface of the air inlet pipe body close to the back surface.

[0014] Preferably, the inner placement pad is connected to the end of the spring away from the outer placement pad.

[0015] Preferably, the end of the connecting air pipe away from the front of the connecting piece is connected to the back of the air pump.

[0016] In summary, the present application provides a kind of miniature waterproof loudspeaker testing device, with the following beneficial effects: 1、The miniature waterproof loudspeaker testing device, by setting the sealing assembly, the sealing box is inserted and adheres to the inner wall of the inner sealing pad, and needs to be tightly adhered to the surface of the sealing box during testing without gaps that can cause air leakage, to ensure the sealing during testing and complete the detection of the miniature waterproof loudspeaker.

[0017] 2、The miniature waterproof loudspeaker testing device, by setting the testing assembly, the sealing box is inserted into the placement groove and the inner wall of the inner sealing pad, gas is input into the test chamber until the set pressure value is reached, and the delivery pump can be closed after the set pressure value is reached. A pressure sensor is provided on the top of the sealing box, which can display data intuitively in cooperation with the data display panel. The pressure sensor monitors the change in air pressure, and the duration is 10 seconds. The leakage is calculated according to the change in air pressure. The testing assembly can be used for detection, realizing non-destructive and rapid testing of the miniature waterproof loudspeaker. The test period is shortened to within 10 seconds. The waterproof performance is quantified by a high-precision pressure sensor. The test accuracy is ±0.1 kPa. The dynamic pressure change can be simulated, which is closer to the actual use scenario, and the test result is more reliable.

[0018] 3、The miniature waterproof loudspeaker testing device, by setting the inner placement assembly, in cooperation with the distinguishing assembly, the miniature waterproof loudspeaker is placed inside the inner placement assembly during use, and the internal elastic clamping assembly is used to ensure tight adhesion, which can ensure the quality of placement and adapt to the size characteristics of the miniature loudspeaker. The test cavity is designed compactly and compatible with various specifications of loudspeakers. After detection, the waterproof loudspeaker can be easily sent out by the distinguishing assembly and placed in different areas according to the test results, avoiding confusion. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present application; Figure 2 It is a schematic diagram of the overall three-dimensional structure of the present application; Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present application; Figure 3 It is a schematic diagram of the overall three-dimensional structure of the present application; Figure 4 It is a schematic diagram of the overall three-dimensional structure of the present application; Figure 3 It is a schematic diagram of the overall three-dimensional structure of the present application; Figure 5 It is a schematic diagram of the overall three-dimensional structure of the present application;

[0020] Explanation of reference signs: 1, test base; 2, side end support frame; 3, sealing assembly; 301, inner sealing pad; 302, air bag piece; 303, outer elastic pad; 304, sponge column piece; 305, hollow connection box; 306, connecting piece; 307, connecting air pipe; 308, air pump; 309, sealing box; 4, test assembly; 401, air pressure sensor; 402, mounting plate; 403, placement seat; 404, data display plate; 405, connecting seat; 406, connecting cable; 407, air inlet pipe body; 408, threaded connection section; 409, sealing cover; 410, thumb sleeve; 5, inner placement assembly; 501, outer placement pad; 502, spring; 503, inner placement pad; 504, placement block; 6, distinguishing assembly; 601, receiving inclined pad; 602, placement plate; 603, placement piece; 604, stepping motor; 605, connecting thin rod; 606, inner placement rectangular plate; 607, receiving rectangular block; 608, hydraulic telescopic rod; 609, support plate; 7, grounding piece. DETAILED DESCRIPTION

[0021] The specific embodiments of the present application will be further described in detail below with reference to the accompanying drawings.

[0022] Please refer to Figures 1-5 The present application provides the following technical solutions: A test device for a miniature waterproof loudspeaker, comprising a test base 1, a side end support frame 2 is arranged on the side of the test base 1, a grounding piece 7 is arranged at the bottom of the side end support frame 2, the bottom of the grounding piece 7 is flush with the bottom of the test base 1, a sealing assembly 3 is arranged at the top of the test base 1, a test assembly 4 is arranged at the top of the sealing assembly 3, and an inner placement assembly 5 is arranged in the test base 1. The sealing assembly 3 comprises an inner sealing pad 301, an air bag piece 302, an outer elastic pad 303, a sponge column piece 304, a hollow connection box 305, a connecting piece 306, a connecting air pipe 307, an air pump 308, and a sealing box 309, the inner sealing pad 301 is connected to the top of the test base 1, the air bag piece 302 is connected to the surface of the inner sealing pad 301, the outer elastic pad 303 is connected to the surface of the air bag piece 302, the sponge column piece 304 is connected to the inside of the outer elastic pad 303, the hollow connection box 305 is connected to the front surface of the top of the air bag piece 302, the connecting piece 306 is connected to the front surface of the hollow connection box 305, the connecting air pipe 307 is connected to the front surface of the connecting piece 306, and the air pump 308 is connected to the top of the test base 1.

[0023] The test assembly 4 comprises an air pressure sensor 401, a mounting plate 402, a placing seat 403, a data display plate 404, a connecting seat 405, a connecting cable 406, an air inlet pipe body 407, a threaded connecting section 408, a sealing cover 409 and a thumb sleeve 410, the air pressure sensor 401 is connected to the top of the sealing box 309, the mounting plate 402 is connected to the right side of the air pressure sensor 401, the placing seat 403 is connected to the top of the air pressure sensor 401, the data display plate 404 is connected to the inside of the placing seat 403, the connecting seat 405 is connected to the right side of the data display plate 404, the connecting cable 406 is connected to the right side of the connecting seat 405, the air inlet pipe body 407 is connected to the back of the sealing box 309, the sealing cover 409 is connected to the back of the threaded connecting section 408, and the end of the connecting cable 406 away from the right side of the connecting seat 405 is connected to the top of the air pressure sensor 401.

[0024] The inner placing assembly 5 comprises an outer placing pad 501, a spring 502, an inner placing pad 503 and a placing block 504, the outer placing pad 501 is connected to the inside of the placing block 504, the spring 502 is connected to the inner ring of the outer placing pad 501, the placing block 504 is connected to the inside of the test base 1, the spring 502 is distributed on the left side, the right side and the back of the inner placing pad 503, and the front surface of the inner placing pad 503 is connected to the inside front surface of the outer placing pad 501.

[0025] The distinguishing assembly 6 comprises a receiving inclined pad 601, a placing plate 602, a placing piece 603, a stepping motor 604, a connecting thin rod 605, an inner placing square plate 606, a receiving square block 607, a hydraulic telescopic rod 608 and a supporting plate 609, two sides of the top of the placing block 504 are provided with rectangular hollow grooves, the receiving inclined pad 601 is fixedly connected to the inside of the two sides of the placing block 504, the placing plate 602 is fixedly connected to the side surface of the outer placing pad 501, the front surface of the placing block 504 is provided with a rectangular sliding groove, the supporting plate 609 is fixedly connected to the front surface of the placing block 504 close to the bottom, the hydraulic telescopic rod 608 is fixedly connected to the top of the supporting plate 609, the receiving square block 607 is fixedly connected to the top of the hydraulic telescopic rod 608, the placing piece 603 is fixedly connected to the top of the receiving square block 607, the stepping motor 604 is fixedly connected to the back of the placing piece 603, the connecting thin rod 605 is fixedly connected to the output shaft of the stepping motor 604, the diameter of the connecting thin rod 605 is matched with the width of the rectangular sliding groove, and the inner placing square plate 606 is fixedly connected to the back of the connecting thin rod 605.

[0026] The inner part of the test base 1 is provided with a placing groove, the area of the placing groove is matched with the inner area of the inner sealing gasket 301, the opening position of the placing groove is accurately positioned, the length and width dimensions of the groove body are strictly processed according to the effective sealing area of the inner ring of the inner sealing gasket 301, and the size error is controlled within ±0.1mm, so that perfect matching is realized. This matching design not only provides a stable assembly reference for the accurate installation of the inner sealing gasket 301, ensures that the inner sealing gasket 301 can completely fit the inner wall of the placing groove, avoids sealing failure caused by installation deviation, and at the same time, the inner wall of the groove is precisely milled, which effectively improves the sealing fit after contacting with the inner sealing gasket 301, and lays a reliable sealing foundation for the installation of the subsequent sealing box.

[0027] Preferably, the inner part of the outer elastic gasket 303 is provided with a placing groove, the diameter of the sponge column 304 is matched with the thickness of the placing groove, the outer elastic gasket 303 adopts a layered composite structure design, and the inner part is provided with uniformly distributed cylindrical placing grooves along the thickness direction, the inner diameter size of the placing groove is highly consistent with the diameter of the sponge column 304, and at the same time, the depth of the placing groove is matched with the length of the sponge column 304, so that the sponge column 304 can be completely embedded in the placing groove and realize interference fit. The sponge column 304 is made of high-density elastic sponge material, which has excellent compression and rebound performance. After being embedded in the outer elastic gasket 303, it can not only enhance the overall elastic buffering capacity of the outer elastic gasket 303, but also realize the dispersion of pressure through the uniform distribution of the sponge column 304, avoid damage to the sealing element caused by local pressure concentration, and significantly improve the service life of the sealing structure.

[0028] The sealing box 309 is inserted into the inner part of the placing groove, the bottom area of the sealing box 309 is matched with the area of the placing groove, the sealing box 309 is slidingly connected to the inner wall of the inner sealing gasket 301, and the sealing box 309 is inserted into the inner part of the placing groove in a clearance fit manner, the bottom area of which is completely matched with the slot area of the placing groove, so that the sealing box 309 can be smoothly placed in the groove body without obvious shaking.

[0029] The surface of the air inlet pipe body 407 is connected with a threaded groove near the back surface, and the threaded connection section 408 is threadedly connected to the surface of the air inlet pipe body 407 near the back surface. The air inlet pipe body 407 serves as a key channel for gas transmission, and a standard external thread groove is integrally formed on the position near the surface of the back surface. The thread specification is selected to be a fine thread in line with the industry standard, so as to improve the sealing performance and connection strength of the thread connection. The threaded connection section 408 is made of high-strength alloy material, and an internal thread matched with the external thread groove of the air inlet pipe body 407 is formed in the threaded connection section 408. The two are tightly connected by screwing. In the connection process, the length of the threaded connection of the threaded connection section 408 and the air inlet pipe body 407 is not less than 15 mm, so as to ensure the stability of the connection. Meanwhile, a raw material belt or a thread sealing glue is wound around the thread joint, so as to further strengthen the sealing effect and prevent gas leakage from the thread gap during the transmission process.

[0030] The inner placement pad 503 is connected to the end of the spring 502 away from the outer placement pad 501, and the outer placement pad 501 is fixed on the shell or base of the device by bolts to provide a fixed mounting reference for the entire support assembly. The spring 502 is selected to be a stainless steel spring with a high elastic coefficient, and one end thereof is fixedly connected to the outer placement pad 501 by welding or a buckle structure, and the other end thereof is connected to the inner placement pad 503 in the same fixing manner. The material of the inner placement pad 503 is selected to be a wear-resistant polyurethane material, and the surface thereof is roughened to enhance the friction with the supported part and prevent relative sliding. This connection structure enables the elastic force of the spring 502 to be uniformly transmitted to the inner placement pad 503, thereby providing stable elastic support for the supported part and having good shock absorption performance to effectively absorb the vibration and impact generated during the operation of the device.

[0031] The end of the connecting air pipe 307 away from the front surface of the connecting piece 306 is connected to the back surface of the air pump 308. The connecting air pipe 307 is selected to be a polytetrafluoroethylene air pipe with high pressure resistance and aging resistance. The end thereof is inserted into the back surface of the connecting piece 306 in an interference fit, and is fastened by a clamp to prevent the air pipe from falling off. The other end of the connecting air pipe 307 is connected to the air outlet on the back surface of the air pump 308 in the same way of fastening by a clamp, and a sealing gasket is sleeved on the joint. The sealing gasket is elastically deformed by the pre-tightening force of the clamp to realize reliable sealing of the air path. This connection mode not only ensures the sealing performance of the air path system, but also has a certain flexible adjustment capability, which is convenient for the installation layout and later maintenance of the air pump 308.

[0032] In use, the waterproof speaker to be detected is placed in the inner placement assembly 5, and the inner placement pad 503 can be pushed to extrude the spring 502 to the inner wall of the outer placement pad 501 to reserve space for the waterproof speaker, and after the waterproof speaker is placed, the spring 502 is no longer pressed and rebounds to help extrude the waterproof speaker, the inner placement pad 503 of the inner ring is elastic to ensure close contact, the quality of placement can be guaranteed, the sealing box 309 is inserted into the placement groove and the inner wall of the inner sealing pad 301, the sealing cover 409 is screwed to pull down the threaded connection section 408 from the back of the air inlet pipe body 407, the air supply pipe is inserted into the air inlet pipe body 407, the air supply pump is started to input air into the air inlet pipe body 407, air is input into the test chamber until the set pressure value is reached, and the air supply pump can be turned off after the set pressure value is reached, the gas pressure sensor 401 is arranged on the top of the sealing box 309, and the data display panel 404 can be used to intuitively display data, the gas pressure sensor 401 is used to monitor the change of the gas pressure, the duration is 10 seconds, the leakage amount is calculated according to the change of the gas pressure, the test assembly 4 is used for detection, and if the waterproof performance of the speaker is good, the gas pressure in the cavity remains stable.If the speaker leaks, the air pressure will gradually decrease, and the control module calculates the leakage according to the air pressure change rate and judges the waterproof level. The sealing box 309 is inserted into the inner wall of the inner sealing gasket 301, and the inner sealing gasket 301 needs to be tightly attached to the surface of the sealing box 309 during testing, so that there is no gap to cause air leakage. Therefore, the air pump 308 can be started to input gas into the inside of the air bag member 302, so that the air bag member 302 expands and presses the inner sealing gasket 301 to ensure that it is tightly attached to the surface of the sealing box 309. The outer ring expands and presses the outer elastic gasket 303, and the sponge column member 304 is deformed to reserve space for the expansion of the air bag member 302, ensuring the normal use of the device and the sealing during testing. The detection of the miniature waterproof speaker is completed, and after detection, the height of the inner placing square plate 606 can be adjusted to move the waterproof speaker to be detected to the upper side, and then according to the detection structure, it is transported and placed in different areas. During detection, the hydraulic telescopic rod 608 drives the stepping motor 604 and the connecting rod 605 and the inner placing square plate 606 to move downward, and moves to the lowermost position inside the outer placing gasket 501 to normally detect. At this time, the bottom of the inner placing square plate 606 is located at the bottom of the outer placing gasket 501, which does not affect the clamping and placing of the waterproof speaker by the outer placing gasket 501 and the spring 502. After detection, the hydraulic telescopic rod 608 drives the placing member 603 and the stepping motor 604 to move upward, and moves to the position near the top inside the outer placing gasket 501. Then the stepping motor 604 can be started to drive the connecting rod 605 to rotate. During rotation, the controller controls the rotation direction of the stepping motor 604 according to the detection result, and the left side is placed for qualified products, and the right side is placed for unqualified products. Therefore, when the detection result is qualified, the stepping motor 604 rotates counterclockwise to send the speaker to the receiving inclined gasket 601, and then falls onto the left placing plate 602. Conversely, it is transported to the right placing plate 602. The detected speaker can be easily taken out while being distinguished, which is convenient for knowing the test result and avoiding confusion during simultaneous detection of multiple speakers.

[0033] Although embodiments of the present application have been shown and described, it is to be understood that various modifications, substitutions, replacements and changes can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A testing device for a miniature waterproof loudspeaker, comprising a testing base (1), characterized in that: The test base (1) is provided with a side support frame (2) on its side, and a grounding component (7) is provided at the bottom of the side support frame (2). The bottom of the grounding component (7) is flush with the bottom of the test base (1). The test base (1) is provided with a sealing component (3) at its top, and a test component (4) is provided at the top of the sealing component (3). The test base (1) is provided with an inner placement component (5) inside, and a distinguishing component (6) is provided on the surface of the inner placement component (5). The sealing assembly (3) includes an inner sealing gasket (301), an airbag component (302), an outer elastic gasket (303), a sponge column component (304), a hollow connecting box (305), a connector (306), a connecting air tube (307), an air pump (308), and a sealing box (309). The inner sealing gasket (301) is connected to the top of the test base (1), the airbag component (302) is connected to the surface of the inner sealing gasket (301), and the outer elastic gasket (309) is connected to the top of the test base (1). The pad (303) is connected to the surface of the airbag (302), the sponge column (304) is connected to the inside of the outer elastic pad (303), the hollow connecting box (305) is connected to the top front of the airbag (302), the connector (306) is connected to the front of the hollow connecting box (305), the connecting air tube (307) is connected to the front of the connector (306), and the air pump (308) is connected to the top of the test base (1).

2. The testing device for a miniature waterproof loudspeaker according to claim 1, characterized in that: The test assembly (4) includes a pressure sensor (401), a mounting plate (402), a placement base (403), a data display panel (404), a connecting base (405), a connecting cable (406), an air intake pipe (407), a threaded connection section (408), a sealing cap (409), and a thumb sleeve (410). The pressure sensor (401) is connected to the top of the sealing box (309), the mounting plate (402) is connected to the right side of the pressure sensor (401), and the placement base (403) is connected to the pressure sensor (404). At the top of 01), the data display panel (404) is connected to the inside of the placement seat (403), the connecting seat (405) is connected to the right side of the data display panel (404), the connecting cable (406) is connected to the right side of the connecting seat (405), one end of the connecting cable (406) away from the right side of the connecting seat (405) is connected to the top of the air pressure sensor (401), the air intake pipe body (407) is connected to the back of the sealing box (309), and the sealing cover (409) is connected to the back of the threaded connection section (408).

3. The testing device for a miniature waterproof loudspeaker according to claim 1, characterized in that: The inner placement component (5) includes an outer placement pad (501), a spring (502), an inner placement pad (503), and a placement block (504). The outer placement pad (501) is connected to the inside of the placement block (504). The spring (502) is connected to the inner ring of the outer placement pad (501). The placement block (504) is connected to the inside of the test base (1). The front of the inner placement pad (503) has a strip groove. The spring (502) is distributed on the left, right, and back of the inner placement pad (503). The front of the inner placement pad (503) is attached to the inner front of the outer placement pad (501).

4. The testing device for a miniature waterproof loudspeaker according to claim 3, characterized in that: The distinguishing component (6) includes a receiving inclined pad (601), a placement plate (602), a placement piece (603), a stepper motor (604), a connecting rod (605), an inner placement rectangular plate (606), a receiving rectangular block (607), a hydraulic telescopic rod (608), and a support plate (609). The top two sides of the placement block (504) have rectangular cutouts. The receiving inclined pad (601) is fixedly connected to the inner two sides of the placement block (504). The placement plate (602) is fixedly connected to the side of the outer placement pad (501). The front of the placement block (504) has a rectangular sliding groove. The support plate (609) is fixedly connected to... Near the bottom of the front of the placement block (504), the hydraulic telescopic rod (608) is fixedly connected to the top of the support plate (609), the receiving rectangular block (607) is fixedly connected to the top of the hydraulic telescopic rod (608), the placement piece (603) is fixedly connected to the top of the receiving rectangular block (607), the stepper motor (604) is fixedly connected to the back of the placement piece (603), the connecting rod (605) is fixedly connected to the output shaft of the stepper motor (604), the diameter of the connecting rod (605) is adapted to the width of the rectangular slide, and the inner placement rectangular plate (606) is fixedly connected to the back of the connecting rod (605).

5. The testing device for a miniature waterproof loudspeaker according to claim 1, characterized in that: The test base (1) has a rectangular groove inside, and the area of ​​the rectangular groove is adapted to the inner area of ​​the inner sealing gasket (301).

6. The testing device for a miniature waterproof loudspeaker according to claim 1, characterized in that: The outer elastic pad (303) has a placement groove inside, and the diameter of the sponge column (304) is adapted to the thickness of the placement groove.

7. The testing device for a miniature waterproof loudspeaker according to claim 1, characterized in that: The sealing box (309) is inserted into the interior of the rectangular groove. The bottom area of ​​the sealing box (309) is adapted to the area of ​​the rectangular groove. The sealing box (309) is slidably connected to the inner wall of the inner sealing gasket (301).

8. The testing device for a miniature waterproof loudspeaker according to claim 2, characterized in that: The surface of the intake pipe body (407) near the back is connected to a threaded groove, and the threaded connection section (408) is threadedly connected to the surface of the intake pipe body (407) near the back.

9. The testing device for a miniature waterproof loudspeaker according to claim 3, characterized in that: The inner pad (503) is connected to the end of the spring (502) away from the outer pad (501).

10. The testing device for a miniature waterproof loudspeaker according to claim 1, characterized in that: The end of the connecting tube (307) away from the front of the connector (306) is connected to the back of the air pump (308).

Images