Waterproof performance detection device for automobile electronic product

Abstract

The utility model relates to the technical field of automobile electronics, in particular to an automobile electronic product waterproof performance detection device which comprises an airtight detector, a supporting frame is arranged on one side of the airtight detector, a hydraulic telescopic rod is arranged at the top of the supporting frame, and an airtight mold is arranged at the bottom of the hydraulic telescopic rod. Through the arrangement of the detachable upper mold assembly, the lower mold body, the hydraulic telescopic rods, clamping pins, springs, rotating rings and other parts, the upper mold body can drive the clamping pins to move in the radial direction and be clamped into the clamping holes by rotating the rotating rings through the matching relation between the clamping pins and the clamping holes and the matching relation between the rotating rings and the inner slope protruding blocks; the rapid locking and separation of the upper clamping seat are realized, so that the device can rapidly replace automobile electronic product molds of different specifications through a detachable structure, the detection efficiency is remarkably improved, and the waterproof detection requirements of diversified products are met.

Description

Technical Field

[0001] This application relates to the field of automotive electronics technology, and in particular to a device for testing the waterproof performance of automotive electronic products. Background Technology

[0002] In daily driving, cars may encounter rain, high-pressure water jets during car washes, and even drive through flooded roads in extreme cases. If electronic products get wet due to poor waterproofing, they are very likely to cause short circuits, which can not only cause the component to malfunction, but in severe cases, may also affect the normal operation of the entire car's electronic system, endangering driving safety.

[0003] A search revealed Chinese Patent Publication No. CN222652462U, which discloses a waterproof performance testing device for automotive electronic products. This device belongs to the technical field of waterproof performance testing devices and includes a main body and a pressurizing device. The main body has two support plates connected to its top, and both support plates are equipped with the same cooling mechanism. In this invention, a sealing mechanism is incorporated, including a travel groove, a pad, and a sealing ring. This provides a buffer distance when the sealing ring is compressed, preventing excessive compression and irreversible deformation, thus improving the sealing ring's lifespan. A first spring ensures the sealing ring fits tightly against the sealing groove, improving the mold's airtightness and the device's measurement accuracy. The connecting plate compresses the airbag, causing it to expel gas, which quickly lowers the temperature inside the first mold, accelerating its return to normal temperature and reducing waiting time, thereby improving measurement efficiency.

[0004] Regarding the aforementioned technologies, the inventors have discovered the following drawbacks: While the device improves mold airtightness through a sealing mechanism, it lacks a quick-assembly / disassembly structure. The connection between the upper mold and the hydraulic telescopic rod or the main body of the testing device remains relatively fixed, requiring cumbersome operations when changing molds of different models, thus affecting testing efficiency, especially when adapting to diverse automotive electronic products, which is time-consuming. Furthermore, the design of detachable or modular mold components is not explicitly mentioned. For products of different shapes and sizes, it may be necessary to replace the entire mold, making quick adaptation through partial adjustments impossible, resulting in insufficient versatility of the testing device. Utility Model Content

[0005] To address the problems mentioned in the background section, this application provides a device for testing the waterproof performance of automotive electronic products.

[0006] This application provides a waterproof performance testing device for automotive electronic products, which adopts the following technical solution: A waterproof performance testing device for automotive electronic products includes an airtightness tester, a support frame is provided on one side of the airtightness tester, a hydraulic telescopic rod is provided on the top of the support frame, and an airtight mold is provided at the bottom of the hydraulic telescopic rod.

[0007] An airtight mold, comprising a detachable upper mold assembly and a lower mold body, wherein the lower mold body is connected to an air pump inside an airtightness tester via an air pipe, and the detachable upper mold assembly is disposed on top of the lower mold body;

[0008] The above solution, through the split mold design, enables the rapid replacement of the upper mold component, adapting to the testing needs of products of different specifications. At the same time, the lower mold body is directly connected to the air pump, ensuring the stability and reliability of airtightness testing.

[0009] The detachable upper mold assembly includes an upper mold body, a positioning plate, a clamping plate, a clamping hole, an upper clamping seat, a positioning groove, and a positioning hole. The upper mold body is positioned directly above the lower mold body. A positioning plate is fixedly connected to the top of the upper mold body, and a clamping plate is fixedly connected to the top of the positioning plate. A clamping hole is formed through one side of the clamping plate. An upper clamping seat is movably sleeved on the top of the clamping plate. A positioning groove is formed through the top of the upper clamping seat, and a positioning hole is connected to one side of the positioning groove. The positioning hole is located on one side of the upper clamping seat.

[0010] The above scheme employs a multi-level positioning structure design, achieving precise alignment through the cooperation of positioning grooves and positioning plates. Combined with the locking mechanism of locking holes and pins, it ensures the airtightness of the upper mold when it is closed, reducing detection errors.

[0011] Optionally, the detachable upper mold assembly further includes a limiting ring, a spring, a retaining pin, a rotating ring, and an inner inclined protrusion. The limiting ring is fixedly connected inside the positioning hole. A retaining pin is movably sleeved on one side of the limiting ring. A spring is sleeved on one side of the retaining pin. The retaining pin includes a retaining post and an outer inclined protrusion fixedly connected to one side of the retaining post. One end of the spring is fixedly connected to the outer inclined protrusion, and the other end of the spring is fixedly connected to the limiting ring. An inner inclined protrusion is movably connected to one side of the outer inclined protrusion. The inner inclined protrusion is fixedly connected to the inner wall of the rotating ring, and the rotating ring is movably sleeved on one side of the upper retainer.

[0012] The above solution utilizes the linkage design of the rotating ring and the inclined protrusion to drive the extension and retraction of the locking pin, thereby achieving rapid locking and release of the upper mold, significantly improving assembly and disassembly efficiency and reducing operational complexity.

[0013] Optionally, the locking pin is movably sleeved inside the locking hole, and the thickness of the outer bevel protrusion of the locking pin is the same as the depth of the locking hole.

[0014] The above solution ensures that the pin is fully embedded in the hole when locked by precisely matching the dimensions of the pin and the hole, thus avoiding sealing failure due to gaps and improving structural stability.

[0015] Optionally, the upper bracket is fixedly connected to the bottom of the output end of the hydraulic telescopic rod.

[0016] The above solution integrates the upper mounting bracket directly into the end of the hydraulic telescopic rod, achieving an integrated design of power transmission and mold positioning, reducing intermediate connecting parts, and enhancing the overall rigidity of the system.

[0017] Optionally, the top edge of the lower mold body is provided with an annular sealing gasket, the annular sealing gasket being made of elastic rubber, which is used to form a sealed detection cavity when closed with the upper mold body.

[0018] The above solution uses an elastic rubber gasket to achieve dynamic sealing compensation, effectively adapting to minor deviations when the mold closes, ensuring the complete airtightness of the detection cavity, and improving detection accuracy.

[0019] Optionally, the outer surface of the rotating ring is provided with anti-slip texture, and the rotation angle range of the rotating ring is 0° to 90°. By rotating, the inner inclined protrusion presses the outer inclined protrusion of the locking pin, so that the locking pin moves radially and enters the locking hole.

[0020] The above solution optimizes the human-machine interaction experience by limiting the rotation angle of the rotating ring and adding anti-slip texture, allowing operators to complete the mold locking action with one hand and improving inspection efficiency.

[0021] Optionally, in its natural state, the spring pushes the outer inclined protrusion of the locking pin away from the inner inclined protrusion, and the locking pin's locking post portion disengages from the locking hole.

[0022] The above solution utilizes the preload of a spring to achieve automatic reset of the locking pin, eliminating the need for additional operations when unlocking, simplifying the disassembly process and reducing the risk of mold wear.

[0023] In summary, this application includes the following beneficial technical effects:

[0024] 1. This utility model, by setting up a detachable upper mold assembly, a lower mold body, a hydraulic telescopic rod, a locking pin, a spring, and a rotating ring, etc., through the cooperation relationship between the locking pin and the locking hole, and between the rotating ring and the inner inclined protrusion, allows the upper mold body to drive the locking pin to move radially and engage with the locking hole by rotating the rotating ring, thereby achieving rapid locking and separation from the upper locking seat. In this way, the device can quickly change the molds of different specifications of automotive electronic products through a detachable structure, significantly improving the testing efficiency and meeting the diverse waterproof testing needs of products.

[0025] 2. This utility model, by setting up an upper mold body, a lower mold body, an annular sealing gasket, a locking pin, and a hydraulic telescopic rod, etc., uses the hydraulic telescopic rod to drive the upper mold body downward, forming a sealed cavity with the annular sealing gasket and the lower mold body. Simultaneously, the locking pin locks the upper mold assembly to ensure a seal. This allows the airtightness tester to inflate the sealed cavity with air via an air pump, accurately testing the waterproof performance of the product. Thus, this device achieves high-precision airtightness testing of automotive electronic products through a stable sealing structure and reliable locking mechanism, avoiding testing errors caused by mold loosening or air leakage. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall structure in an embodiment of this application;

[0027] Figure 2 This is a partial structural diagram of an embodiment of this application;

[0028] Figure 3 This is a partial structural diagram of the airtight mold in an embodiment of this application;

[0029] Figure 4 This is a schematic diagram of the partial structure installation of the airtight mold in the embodiments of this application;

[0030] Reference numerals: 1. Air tightness tester; 2. Support frame; 3. Hydraulic telescopic rod; 4. Air tightness mold; 41. Detachable upper mold assembly; 42. Lower mold body; 401. Upper mold body; 402. Positioning plate; 403. Clamping plate; 404. Clamping hole; 405. Upper clamping seat; 406. Positioning groove; 407. Positioning hole; 408. Limiting ring; 409. Spring; 410. Clamping pin; 411. Rotating ring; 412. Inner inclined surface protrusion. Detailed Implementation

[0031] The following is in conjunction with the appendix Figures 1-4 This application will be described in further detail.

[0032] This application discloses a device for testing the waterproof performance of automotive electronic products.

[0033] Please see Figure 1 A waterproof performance testing device for automotive electronic products includes an airtightness tester 1, a support frame 2 on one side of the airtightness tester 1, a hydraulic telescopic rod 3 on the top of the support frame 2, and an airtight mold 4 at the bottom of the hydraulic telescopic rod 3.

[0034] Please see Figures 2 to 4 The airtight mold 4 includes a detachable upper mold assembly 41 and a lower mold body 42. The lower mold body 42 is connected to the air pump inside the airtightness tester 1 through an air pipe. The detachable upper mold assembly 41 is located on the top of the lower mold body 42.

[0035] The top edge of the lower mold body 42 is provided with an annular sealing gasket. The annular sealing gasket is made of elastic rubber and is used to form a sealed detection cavity when it is closed with the upper mold body 401.

[0036] The detachable upper mold assembly 41 includes an upper mold body 401, a positioning plate 402, a clamping plate 403, a clamping hole 404, an upper clamping seat 405, a positioning groove 406, and a positioning hole 407. The upper mold body 401 is located directly above the lower mold body 42. The positioning plate 402 is fixedly connected to the top of the upper mold body 401. The clamping plate 403 is fixedly connected to the top of the positioning plate 402. A clamping hole 404 is provided through one side of the clamping plate 403. The upper clamping seat 405 is movably sleeved on the top of the clamping plate 403. A positioning groove 406 is provided through the top of the upper clamping seat 405. A positioning hole 407 is connected to one side of the positioning groove 406. The positioning hole 407 is located on one side of the upper clamping seat 405.

[0037] The upper bracket 405 is fixedly connected to the bottom of the output end of the hydraulic telescopic rod 3.

[0038] The detachable upper mold assembly 41 also includes a limiting ring 408, a spring 409, a locking pin 410, a rotating ring 411, and an inner inclined protrusion 412. The limiting ring 408 is fixedly connected to the inside of the positioning hole 407. The locking pin 410 is movably sleeved on one side of the limiting ring 408. The spring 409 is sleeved on one side of the locking pin 410. The locking pin 410 includes a locking post and an outer inclined protrusion fixedly connected to one side of the locking post. One end of the spring 409 is fixedly connected to the outer inclined protrusion, and the other end of the spring 409 is fixedly connected to the limiting ring 408. The inner inclined protrusion 412 is movably connected to one side of the outer inclined protrusion. The inner inclined protrusion 412 is fixedly connected to the inner wall of the rotating ring 411. The rotating ring 411 is movably sleeved on one side of the upper clamping seat 405.

[0039] The locking pin 410 is movably sleeved inside the locking hole 404, and the thickness of the outer bevel protrusion of the locking pin 410 is the same as the depth of the locking hole 404.

[0040] In its natural state, the spring 409 pushes the outer inclined protrusion of the locking pin 410 away from the inner inclined protrusion 412, and the locking post portion of the locking pin 410 disengages from the locking hole 404.

[0041] The outer surface of the rotating ring 411 is provided with anti-slip texture, and the rotation angle range of the rotating ring 411 is 0° to 90°. By rotating, the inner inclined protrusion 412 is driven to press the outer inclined protrusion of the locking pin 410, so that the locking pin 410 moves radially and enters the locking hole 404.

[0042] Further explanation is needed: The detachable upper mold assembly 41 and the lower mold body 42 cooperate to form a sealed space. The elastic rubber annular sealing gasket on the top edge of the lower mold body 42 fits tightly against the upper mold body 401 when closed, ensuring that external air cannot enter when the tested automotive electronic product is placed inside the cavity, maintaining stable internal air pressure and providing a precise pressure testing environment for the airtightness tester 1. The detachable upper mold assembly 41, through the cooperation of the positioning plate 402, the clamping plate 403, and the upper clamping seat 405, utilizes a locking mechanism composed of the clamping pin 410, the spring 409, and the rotating ring 411 to achieve quick installation and removal of the upper mold. When the rotating ring 411 is rotated, the inner inclined surface convex... Block 412 presses against the outer inclined protrusion of the locking pin 410, causing the locking pin to move radially and engage with the locking hole 404, thus fixing the upper mold to the hydraulic telescopic rod 3. In its natural state, the spring pushes the locking pin out of the locking hole, facilitating the replacement of upper molds of different specifications, adapting to the testing needs of various automotive electronic products, and improving the versatility of the device. The upper locking seat 405 is fixed to the output end of the hydraulic telescopic rod 3, and the upper mold is moved up and down by hydraulic drive to realize the closing and opening of the testing chamber. When closed, the lower mold body 42 is connected to the air pump of the air tightness tester through the air pipe, which can inflate or evacuate the chamber to simulate different pressure environments, thereby testing the waterproof sealing of the product and ensuring the automation and efficiency of the testing process.

[0043] The implementation principle of the waterproof performance testing device for automotive electronic products in this application embodiment is as follows:

[0044] First, the automotive electronic product to be tested is placed on the preset station of the lower mold body 42. The positioning structure ensures that the product position is accurate. Then, the upper mold body 401 of the detachable upper mold assembly 41 is aligned with the lower mold body 42, so that the bottom of the upper mold body is in contact with the annular sealing gasket at the top of the lower mold. At this time, the clamping plate 403 at the top of the upper mold is embedded in the upper clamping seat 405 at the bottom of the hydraulic telescopic rod 3. By rotating the rotating ring 411, the inner inclined protrusion 412 is driven to squeeze the clamping pin 410, so that the clamping pin moves radially and is locked into the clamping hole 404 of the clamping plate, thus completing the rapid locking of the upper mold and the hydraulic system.

[0045] Secondly, the hydraulic telescopic rod 3 is activated and extends downward, pushing the upper mold body 401 and the lower mold body 42 to fit tightly together. The elastic rubber annular sealing gasket on the top of the lower mold forms a sealed detection cavity. At the same time, the lower mold body 42 is connected to the air pump inside the air tightness tester 1 through the air pipe, establishing a gas flow channel and providing a hardware foundation for subsequent pressure testing.

[0046] Next, the air tightness tester 1 controls the air pump to fill the sealed cavity with a certain amount of compressed air, so that the cavity reaches the preset test pressure. The system enters the pressure holding stage and monitors the cavity pressure change in real time through the built-in pressure sensor. If the product under test has gaps or damage, the pressure in the cavity will drop due to gas leakage, and the sensor will transmit the signal to the control system of the tester.

[0047] Next, the control system calculates the pressure decay rate or leakage based on the real-time data from the pressure sensor and compares it with the preset waterproof performance standard. If the pressure change is within the allowable range, the product is deemed to have qualified waterproof performance; if the pressure drops sharply or exceeds the threshold, the product is deemed to have a leakage defect, a test report is generated, and an alarm is issued.

[0048] Finally, after the test is completed, the hydraulic telescopic rod 3 retracts upward, causing the upper mold body 401 to separate from the lower mold body 42. The rotating ring 411 is manually rotated to reset, and the spring 409 pushes the locking pin 410 to disengage from the locking hole 404. The upper mold assembly 41 is then disassembled, and the product under test is removed. If different specifications of electronic products need to be tested, the upper mold body of the corresponding size can be replaced, and the above process can be repeated to achieve the versatility and high efficiency of the equipment.

[0049] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A waterproof performance testing device for automotive electronic products, comprising an airtightness tester (1), characterized in that: A support frame (2) is provided on one side of the airtightness tester (1), a hydraulic telescopic rod (3) is provided on the top of the support frame (2), and an airtight mold (4) is provided at the bottom of the hydraulic telescopic rod (3). An airtight mold (4) includes a detachable upper mold assembly (41) and a lower mold body (42). The lower mold body (42) is connected to the air pump inside the airtightness tester (1) via an air pipe. The detachable upper mold assembly (41) is located on the top of the lower mold body (42). The detachable upper mold assembly (41) includes an upper mold body (401), a positioning plate (402), a clamping plate (403), a clamping hole (404), an upper clamping seat (405), a positioning groove (406), and a positioning hole (407). The upper mold body (401) is located directly above the lower mold body (42). The top of the upper mold body (401) is fixedly connected to the positioning plate (402), and the top of the positioning plate (402) is fixedly connected to the clamping plate (403). A clamping hole (404) is provided through one side of the clamping plate (403). The top of the clamping plate (403) is movably sleeved with the upper clamping seat (405). A positioning groove (406) is provided through the top of the upper clamping seat (405), and a positioning hole (407) is connected to one side of the positioning groove (406). The positioning hole (407) is located on one side of the upper clamping seat (405).

2. The waterproof performance testing device for automotive electronic products according to claim 1, characterized in that: The detachable upper mold assembly (41) further includes a limiting ring (408), a spring (409), a locking pin (410), a rotating ring (411), and an inner inclined protrusion (412). The limiting ring (408) is fixedly connected inside the positioning hole (407). A locking pin (410) is movably sleeved on one side of the limiting ring (408), and a spring (409) is sleeved on one side of the locking pin (410). The locking pin (410) includes a locking mechanism. The post and the outer inclined protrusion fixedly connected to one side of the post, one end of the spring (409) is fixedly connected to the outer inclined protrusion, and the other end of the spring (409) is fixedly connected to the limiting ring (408). An inner inclined protrusion (412) is movably connected to one side of the outer inclined protrusion. The inner inclined protrusion (412) is fixedly connected to the inner wall of the rotating ring (411). The rotating ring (411) is movably sleeved on one side of the upper card seat (405).

3. The waterproof performance testing device for automotive electronic products according to claim 2, characterized in that: The locking pin (410) is movably sleeved inside the locking hole (404), and the thickness of the outer bevel protrusion of the locking pin (410) is the same as the depth of the locking hole (404).

4. The waterproof performance testing device for automotive electronic products according to claim 2, characterized in that: The upper bracket (405) is fixedly connected to the bottom of the output end of the hydraulic telescopic rod (3).

5. The waterproof performance testing device for automotive electronic products according to claim 1, characterized in that: The top edge of the lower mold body (42) is provided with an annular sealing gasket, which is made of elastic rubber and is used to form a sealed detection cavity when closed with the upper mold body (401).

6. The waterproof performance testing device for automotive electronic products according to claim 2, characterized in that: The outer surface of the rotating ring (411) is provided with anti-slip texture, and the rotation angle range of the rotating ring (411) is 0° to 90°. By rotating, the inner inclined protrusion (412) is driven to squeeze the outer inclined protrusion of the locking pin (410), so that the locking pin (410) moves radially and enters the locking hole (404).

7. The waterproof performance testing device for automotive electronic products according to claim 2, characterized in that: In its natural state, the spring (409) pushes the outer inclined protrusion of the locking pin (410) away from the inner inclined protrusion (412), and the locking post portion of the locking pin (410) disengages from the locking hole (404).

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