PCBA board USB interface waterproof test device

Abstract

The utility model discloses a PCBA board USB interface waterproof testing arrangement, including base, push -and -pull lever handle and waterproof airtight interface, the top of base is along first direction and is sequentially set up PCBA and places the area, airtight interface fixed area and transmission mechanism, PCBA places the area and sets up the dowel pin and the limit block, the limit block is used to block PCBA relative movement, the dowel pin is used to pass through PCBA's location hole with the fixed base, airtight interface fixed area has the recess, waterproof airtight interface can move in recess, transmission mechanism includes fixed part and push -and -pull lever handle, fixed part is connected with the top of base, push -and -pull lever handle is connected with fixed part and is connected with waterproof airtight interface transmission, push -and -pull lever handle can drive waterproof airtight interface to PCBA of PCBA places the area moves. The utility model provides PCBA board USB interface waterproof testing arrangement has the advantages of stable testing, high pass rate, and less manual participation.

Description

Technical Field

[0001] This utility model relates to the field of PCBA testing technology, and in particular to a waterproof testing device for PCBA board USB interface with minimal human intervention. Background Technology

[0002] Currently, testing the waterproofness of PCBA USB interfaces involves an operator holding the PCBA motherboard in one hand and the waterproof and airtight connector in the other. The operator inserts the PCBA's USB connector into the connector, waits 15 seconds, and observes for leaks or bubbles. Based on the test results for each PCBA, it is removed, and the good and defective products are identified. The next PCBA is then removed, and the process is repeated. However, the operator manually and repeatedly inserts and removes the PCBA's USB connector, with varying force applied each time, leading to a certain rate of false positives. Furthermore, the operator's constant holding of the PCBA motherboard increases their workload. Utility Model Content

[0003] This invention is based on the inventor's discovery and understanding of the following facts and problems: manual operation has poor stability, high error rate, and high labor intensity.

[0004] This utility model aims to at least partially solve one of the technical problems in the related art.

[0005] Therefore, this utility model provides a waterproof testing device for a PCBA board USB interface, including a base, a push-pull handle, and a waterproof and airtight interface. The top of the base is sequentially arranged along a first direction as a PCBA placement area, an airtight interface fixing area, and a transmission mechanism. The PCBA placement area is provided with a positioning pin and a limiting block. The limiting block is used to prevent relative movement of the PCBA. The positioning pin passes through the positioning hole of the PCBA and is fixed to the base. The airtight interface fixing area has a groove, and the waterproof and airtight interface can move within the groove. The transmission mechanism includes a fixing member and a push-pull handle. The fixing member is connected to the top of the base, and the push-pull handle is connected to the fixing member and is also connected to the waterproof and airtight interface. The push-pull handle can drive the waterproof and airtight interface to move towards the PCBA in the PCBA placement area. The PCBA board USB interface waterproof testing device according to the present invention has the advantages of stable testing, high pass rate and low manual intervention.

[0006] In some embodiments, the push-pull rod handle includes a transmission rod, a limiting sleeve, and a handle. The limiting sleeve is connected to the fixing member, the first end of the transmission rod passes through the limiting sleeve and is connected to the waterproof and airtight interface, and the second end of the transmission rod is connected to the handle.

[0007] In some embodiments, the PCBA board USB interface waterproof testing device further includes a timing display and a buzzer, the timing display being arranged on the side of the base, and the buzzer being electrically connected to the timing display.

[0008] In some embodiments, limiting blocks are provided at the airtight interface fixing area and the fixing member, respectively, and the limiting blocks are used to prevent the waterproof airtight interface from moving.

[0009] In some embodiments, a rubber buffer pad is attached to the surface of the limiting block.

[0010] In some embodiments, a limit switch is also included, which is disposed on the limit block and electrically connected to the timing display.

[0011] In some embodiments, a positioning buckle is further included, which is pivotally connected to the handle, and a limiting hook is provided on the base, which can be hooked and fixed to the positioning buckle and the limiting hook.

[0012] In some embodiments, a floating centering structure is further included, which includes a floating plate, a cross slider, and a return spring. The floating plate is slidably connected to the cross slider, the cross slider is connected to the first end of the transmission rod, and the return spring is connected to the base and can abut against the bottom of the floating plate.

[0013] In some embodiments, a cross groove is provided on the floating plate, and the cross groove is slidably connected to the cross slider.

[0014] In some embodiments, a drawer-type waste box is also included, which is located on the side of the base away from the transmission mechanism and has a removable partition inside, which divides the defective product placement area and the identification card placement area. Attached Figure Description

[0015] Figure 1 This is a structural schematic diagram of the waterproof testing device for the USB interface of the PCBA board according to an embodiment of this utility model.

[0016] Figure 2 These are photos showing the actual usage status of the PCBA board USB interface waterproof testing device according to the embodiments of this utility model.

[0017] Reference numerals in the attached diagram: 1. Base; 2. PCBA placement area; 3. Limiting block; 4. Groove; 5. Waterproof and airtight interface; 6. Transmission rod; 7. Limiting sleeve; 8. Handle. Detailed Implementation

[0018] The embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0019] This utility model provides a waterproof testing device for a PCBA board USB interface, including a base 1, a push-pull handle, and a waterproof and airtight interface 5. The top of the base 1 is sequentially arranged along a first direction, comprising a PCBA placement area 2, an airtight interface fixing area, and a transmission mechanism. The PCBA placement area 2 is equipped with a positioning pin and a limiting block 3. The limiting block 3 prevents relative movement of the PCBA, and the positioning pin passes through the positioning hole of the PCBA and is fixed to the base 1. The airtight interface fixing area has a groove 4, within which the waterproof and airtight interface 5 can move. The transmission mechanism includes a fixing component and a push-pull handle. The fixing component is connected to the top of the base 1, and the push-pull handle is connected to the fixing component and to the waterproof and airtight interface 5. The push-pull handle can drive the waterproof and airtight interface 5 to move towards the PCBA in the PCBA placement area 2. The sequential arrangement of the PCBA placement area 2, the airtight interface fixing area, and the transmission mechanism along the first direction ensures that the driving force of the push-pull handle is transmitted horizontally to the waterproof and airtight interface 5, guaranteeing coaxial force transmission and avoiding problems such as interface force misalignment and inadequate sealing caused by non-linear transmission. The positioning pin engages with the positioning hole on the PCBA board to achieve hole-shaft positioning. The limiting block 3 fits against the side of the PCBA to form a positional constraint. The positioning pin and the limiting block 3 work together to restrict the displacement of the PCBA, eliminating the need for manual handling, reducing shaking, and ensuring that the USB interface is always in the docking reference position of the waterproof and airtight interface 5. No secondary adjustment is required after the PCBA is placed. The groove 4 reduces the impact of the base 1 on the movement of the waterproof and airtight interface 5 and plays a guiding role. Mechanical transmission replaces manual operation, avoiding complex manual operation with two or one hand. The mechanical transmission has good consistency, avoiding the sealing pressure fluctuation caused by uneven force during manual operation, and reducing the misjudgment rate of defective products.

[0020] In some embodiments, the push-pull handle includes a transmission rod 6, a limiting sleeve 7, and a handle. The limiting sleeve 7 is connected to a fixing member. The first end of the transmission rod 6 passes through the limiting sleeve 7 and is connected to the waterproof and airtight interface 5. The second end of the transmission rod 6 is connected to the handle.

[0021] Specifically, the first end of the transmission rod 6 can be threaded to the waterproof and airtight interface 5, and the second end can be threaded to the handle. The length of the limiting sleeve 7 is less than the length of the transmission rod 6. The limiting sleeve 7 serves as a guide and provides vertical support for the transmission rod 6, limiting the radial runout of the transmission rod 6 and preventing misalignment of the interface due to rod sway. The handle allows for manual pushing of the transmission rod 6 by operators, addressing potential malfunctions in linear reciprocating drive equipment such as hydraulic cylinders and electric push rods. This ensures smooth testing.

[0022] Optionally, a lubrication guide sleeve, made of polytetrafluoroethylene, can be installed inside the limiting sleeve 7 to reduce contact wear between the transmission rod 6 and the limiting sleeve 7. A spring can be fitted at the connection between the handle and the transmission rod 6 to cushion impacts.

[0023] In some embodiments, the PCBA board USB interface waterproof testing device further includes a timing display and a buzzer, with the timing display arranged on the side of the base 1 and the buzzer electrically connected to the timing display.

[0024] Specifically, the timing display eliminates the need for manual timekeeping, resolving the issue of overestimating by 1-2 seconds and missing defective products, or underestimating by 1-2 seconds and incorrectly classifying good products, thus improving the consistency of test results. The timing display is positioned on the side for easy observation of the timing status by the operator's peripheral vision when handling boards. Dual audio and visual prompts reduce the operator's attention requirements and ensure timely operation.

[0025] In some embodiments, limiting blocks are provided at the airtight interface fixing area and the fixing member, respectively, and the limiting blocks are used to prevent the waterproof airtight interface 5 from moving.

[0026] Specifically, the limit stop is arranged in the airtight interface fixing area to limit the maximum advance stroke of the waterproof airtight interface 5, and to prevent the transmission rod 6 from being pushed too far, which would cause the interface pins to bend or the sealing ring to be over-compressed.

[0027] The limiting blocks at the fixing points restrict the maximum reset stroke of the waterproof and airtight interface 5, ensuring a safe distance between the interface and the PCBA placement area 2 after reset, facilitating PCBA placement and removal, and preventing excessive return of the transmission rod 6, which could lead to mechanism loosening. The two limiting blocks work together to reduce mating depth errors through mechanical limiting, thereby reducing sealing pressure fluctuations and lowering the rate of false positives for defective products.

[0028] In some embodiments, a rubber cushioning pad is attached to the surface of the limiting block.

[0029] Specifically, the rubber buffer pad can be made of materials such as nitrile rubber or EPDM rubber, with a thickness of 2-3mm. It absorbs the rigid impact force during the insertion of the waterproof and airtight interface 5, without affecting the docking accuracy. The rubber buffer pad provides flexible cushioning to prevent the interface pins from bending due to rigid impact and the waterproof sealing ring from localized deformation due to compression. Optionally, drainage grooves can be provided on the surface of the rubber buffer pad to guide water out and prevent residual water stains from affecting the buffer pad.

[0030] In some embodiments, a limit switch is also included, which is disposed on a limit block and electrically connected to a timing display.

[0031] Specifically, the limit switch can be a mechanical contact limit switch or a Hall effect limit switch. Hall effect limit switches are better suited for immersion environments. Triggering timing via the limit switch eliminates human timing errors, reducing the rate of missed defects. If the interface is not fully aligned (e.g., the operator does not push the lever to the correct position), the switch will not trigger, ensuring standardized alignment and guaranteeing testing quality. The limit switch is positioned on the limit stop in the airtight interface fixing area. Furthermore, a second limit switch can be placed on the limit stop at the fixing point. When the push-pull lever returns to its reset position and touches the reset stop, the limit switch triggers and sends a signal to the timing display, automatically resetting the test count and entering standby mode. The linkage of two limit switches automates the testing process, reducing manual intervention.

[0032] In some embodiments, a positioning buckle is also included, which is pivotally connected to the handle, and a limiting hook is provided on the base 1, which can be hooked and fixed to the positioning buckle and the limiting hook.

[0033] Specifically, the positioning buckle and the limiting hook form a locking structure. The positioning buckle is L-shaped, with its short section rotating to the handle and its long section serving as the hook. A buckle ring is located at the end of the long section furthest from the short section, and the limiting hook hooks onto the buckle ring. The positioning buckle moves with the handle, and the waterproof and airtight interface 5 aligns with the PCBA. After reaching the limiting block, the buckle ring rotates and enters the hook groove of the limiting hook, preventing the handle from moving relative to the limiting hook. After testing, the buckle ring is rotated to unlock. The cooperation between the positioning buckle and the limiting hook ensures that the transmission rod 6 is fixed to the base 1 during testing, eliminating the need for manual pushing to maintain its position, freeing up manpower while ensuring stable and consistent force.

[0034] In some embodiments, a floating centering structure is also included, which includes a floating plate, a cross slider, and a return spring. The floating plate and the cross slider are slidably connected. The cross slider is connected to the first end of the transmission rod 6. The return spring is connected to the base 1 and can abut against the bottom of the floating plate.

[0035] Specifically, a groove is provided on the floating plate, and the cross slider moves within the groove. The floating plate is supported by a return spring, ensuring its positional oscillation. The transmission rod 6 drives the cross slider to transmit thrust. When a deviation occurs in the docking center, the floating plate slides relative to the cross slider. At this time, the cross slider and the floating plate remain in contact, and the return spring pushes the floating plate back to its initial center position, ensuring alignment and eliminating positioning errors. The floating plate is connected to the waterproof and airtight interface 5, ensuring that the waterproof and airtight interface 5 can float slightly in the longitudinal direction to adapt to deviations.

[0036] In some embodiments, a cross groove is provided on the floating plate, and the cross groove is slidably connected to the cross slider.

[0037] Specifically, the cross-shaped slide groove is an orthogonal cross, which, together with the cross-shaped slider, allows for fine-tuning movement in two directions. This fine-tuning of the slider in both directions can accommodate deviations in the PCBA in different directions. The orthogonal cross-shaped slide groove also restricts the slider's freedom of movement in other directions, ensuring accuracy.

[0038] In some embodiments, a drawer-type waste box is also included. The waste box is located on the side of the base 1 away from the transmission mechanism and has a removable partition inside. The partition divides the defective product placement area and the identification card placement area.

[0039] Specifically, the waste bin is connected to the base 1 via a slide rail, allowing the waste bin to be pulled out of the base 1. A partition inside the waste bin divides the interior into two areas. Drainage holes can be provided at the bottom of the waste bin to drain residual water from defective products. Three sets of equally spaced slots are machined on the inner wall of the waste bin, and the partition can be inserted into different slots to adjust the partition ratio.

[0040] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0041] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0042] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0043] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0044] In this utility model, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Furthermore, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0045] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A waterproof testing device for a PCBA board USB interface, characterized in that, include: The system comprises a base, a push-pull handle, and a waterproof and airtight interface. The top of the base, along a first direction, is sequentially configured with a PCBA placement area, an airtight interface fixing area, and a transmission mechanism. The PCBA placement area is equipped with a positioning pin and a limiting block. The limiting block prevents relative movement of the PCBA. The positioning pin passes through a positioning hole in the PCBA and is fixed to the base. The airtight interface fixing area has a groove, allowing the waterproof and airtight interface to move within the groove. The transmission mechanism includes a fixing component and a push-pull handle. The fixing component is connected to the top of the base, and the push-pull handle is connected to the fixing component and drively connected to the waterproof and airtight interface. The push-pull handle can drive the waterproof and airtight interface to move towards the PCBA in the PCBA placement area.

2. The PCBA board USB interface waterproof testing device according to claim 1, characterized in that, The push-pull rod handle includes a transmission rod, a limiting sleeve, and a handle. The limiting sleeve is connected to the fixing member. The first end of the transmission rod passes through the limiting sleeve and is connected to the waterproof and airtight interface. The second end of the transmission rod is connected to the handle.

3. The PCBA board USB interface waterproof testing device according to claim 1, characterized in that, It also includes a timing display and a buzzer, the timing display being arranged on the side of the base, and the buzzer being electrically connected to the timing display.

4. The PCBA board USB interface waterproof testing device according to claim 3, characterized in that, Limiting blocks are respectively provided at the airtight interface fixing area and the fixing component, and the limiting blocks are used to prevent the waterproof airtight interface from moving.

5. The PCBA board USB interface waterproof testing device according to claim 4, characterized in that, A rubber buffer pad is attached to the surface of the limiting block.

6. The PCBA board USB interface waterproof testing device according to claim 4, characterized in that, It also includes a limit switch, which is arranged on the limit block and is electrically connected to the timing display.

7. The PCBA board USB interface waterproof testing device according to claim 2, characterized in that, It also includes a positioning buckle, which is pivotally connected to the handle, and a limiting hook is provided on the base, which can be hooked and fixed to the positioning buckle and the limiting hook.

8. The PCBA board USB interface waterproof testing device according to claim 2, characterized in that, It also includes a floating centering structure, which includes a floating plate, a cross slider and a return spring. The floating plate and the cross slider are slidably connected. The cross slider is connected to the first end of the transmission rod. The return spring is connected to the base and can abut against the bottom of the floating plate.

9. The PCBA board USB interface waterproof testing device according to claim 8, characterized in that, The floating plate is provided with a cross groove, which is slidably connected to the cross slider.

10. The PCBA board USB interface waterproof testing device according to claim 1, characterized in that, It also includes a drawer-type waste box, which is located on the side of the base away from the transmission mechanism and has a removable partition inside, which divides the defective product placement area and the identification card placement area.

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