Loading rack for PCB salt spray detection

Abstract

This application relates to a loading rack for salt spray testing of PCB circuit boards, belonging to the technical field of PCB circuit board testing equipment. It includes a substrate with multiple sets of connection holes on its surface. A positioning component is detachably fixed within each set of connection holes. A U-shaped frame is symmetrically fixed on the side of the substrate away from the positioning rod. The positioning component includes a positioning rod, a locking nut, a fastening nut, and several spacers. Both ends of the positioning rod are threaded sections, and one end of the positioning rod has a stop ring. The positioning rod is fixed to the substrate via the stop ring and the locking nut. The positioning rod matches the mounting holes on the PCB circuit board. The spacers are movably sleeved on the positioning rod, and a PCB circuit board is placed between adjacent spacers. By incorporating the positioning rod and several spacers, this application allows multiple PCB circuit boards to be placed on the positioning rod during use. The spacer between adjacent PCB circuit boards provides a gap, ensuring sufficient contact between the salt spray and moisture, thus ensuring accurate test results.

Description

Technical Field

[0001] This application relates to the technical field of PCB circuit board testing equipment, and in particular to a loading rack for PCB circuit board salt spray testing. Background Technology

[0002] PCB salt spray testing is a commonly used method to evaluate the corrosion resistance of electronic products. In this test, the test sample is exposed to a humid environment containing salt to simulate a marine environment or other corrosive conditions. The test allows for the assessment of the durability and reliability of electronic products in harsh environments, providing valuable insights for product design and manufacturing.

[0003] During testing, PCB circuit boards are typically placed on a tray or support and then put into a salt spray tester. However, existing trays and supports have limited load-bearing capacity, and stacking PCB boards together results in poor test performance and low test efficiency.

[0004] Therefore, in order to improve testing efficiency, it is urgent to develop a loading rack with strong loading capacity. Utility Model Content

[0005] The purpose of this application is to provide a loading rack for salt spray testing of PCB circuit boards to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this application provides a loading rack for PCB circuit board salt spray testing, employing the following technical solution:

[0007] A loading rack for salt spray testing of PCB circuit boards includes a substrate. Multiple sets of connection holes are formed on the surface of the substrate. A positioning component is detachably fixed within each set of connection holes. A U-shaped frame is symmetrically fixed on the side of the substrate away from the positioning rod. The positioning component includes a positioning rod, a locking nut, a fastening nut, and several spacers. Both ends of the positioning rod are threaded sections, and one end of the positioning rod has a stop ring. The positioning rod is fixed to the substrate via the stop ring and the locking nut. The positioning rod matches the mounting holes on the PCB circuit board. The spacers are movably sleeved on the positioning rod, and a PCB circuit board is disposed between adjacent spacers.

[0008] Preferably, an anti-tipping mechanism is installed on one side of the base plate. The anti-tipping mechanism includes a support plate and a locking assembly. The support plate is hinged to one side of the base plate. The locking assembly includes a lock housing, a spring, and a locking pin. The lock housing is fixed on the base plate. The locking pin and the spring are installed inside the lock housing. The locking pin can limit the position of the support plate.

[0009] With an anti-tipping mechanism, when loading PCB circuit boards, the loading rack is placed upside down on the table via the U-shaped frame. The support plate flips outward under the action of gravity, and the locking pin in the locking assembly extends outward under the action of the spring. When the loading rack is full of PCB circuit boards, the base plate is flipped over, and the loading rack is supported in an inclined state by the support plate. After that, it is convenient for the staff to grasp the U-shaped frame.

[0010] After the test, the loading rack can be tilted using the support plate, and the two sides of the rear handrail can be used to flatten the loading rack on the table, which greatly facilitates the operation of the staff.

[0011] A limiting block is provided on one side of the substrate corresponding to the support plate, and the opening angle of the support plate is 90-130 degrees.

[0012] The support plate has a protrusion on one side corresponding to the locking assembly, and the locking pin can abut against the surface of the protrusion.

[0013] Preferably, for ease of operation, an outward-folding block is provided on the end of the locking pin near the protrusion. After loading, when the pin is placed in the salt spray test chamber, the operator pushes the locking pin inward using the outward-folding block. Under the action of gravity, the support plate can be in a vertical state, thereby avoiding affecting the internal space of the salt spray test chamber.

[0014] The base plate, positioning rod, locking stud, fastening nut, and spacer are all made of corrosion-resistant materials.

[0015] In summary, this application includes at least one of the following beneficial technical effects:

[0016] 1. The loading rack for PCB circuit board salt spray testing is equipped with positioning rods and several spacers. During use, multiple PCB circuit boards can be placed on the positioning rods, which greatly improves the device's capacity. A spacer is placed between adjacent PCB circuit boards to leave gaps between them, so that the salt spray and water vapor can fully contact the PCB circuit boards and ensure accurate test results.

[0017] 2. The substrate surface has multiple sets of connection holes, and each set of connection holes has a detachable positioning component, which can be used for different types of PCB circuit boards and has a wide range of applications. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application.

[0019] Figure 2 This is a structural schematic diagram of the support plate in its supported state in an embodiment of this application.

[0020] Figure 3 This is a structural schematic diagram illustrating the locking component in the embodiments of this application.

[0021] Explanation of reference numerals in the attached drawings: 1. Base plate; 11. Connecting hole; 2. Positioning assembly; 21. Positioning rod; 211. Stop ring; 22. Locking nut; 23. Fastening nut; 24. Spacer; 3. U-shaped frame; 4. Support plate; 41. Protrusion; 5. Locking assembly; 51. Lock housing; 52. Spring; 53. Locking pin; 531. Outward-facing block; 6. Limiting block. Detailed Implementation

[0022] The following is in conjunction with the appendix Figure 1-3 This application will be described in further detail.

[0023] This application discloses a loading rack for salt spray testing of PCB circuit boards, referring to... Figure 1-3 The system includes a substrate 1, with multiple sets of connection holes 11 on the surface of the substrate 1. A positioning component 2 is detachably fixed in each set of connection holes 11. A U-shaped frame 3 is symmetrically fixed on the side of the substrate 1 away from the positioning rod 21. The positioning component 2 includes a positioning rod 21, a locking nut 22, a fastening nut 23, and several spacers 24. The two ends of the positioning rod 21 are threaded sections. One end of the positioning rod 21 has a stop ring 211. The positioning rod 21 is fixed on the substrate 1 by the stop ring 211 and the locking nut 22. The positioning rod 21 matches the mounting hole on the PCB circuit board. The spacers 24 are movably sleeved on the positioning rod 21. A PCB circuit board is arranged between adjacent spacers 24.

[0024] Reference Figure 1-3 An anti-tipping mechanism is installed on one side of the base plate 1. The anti-tipping mechanism includes a support plate 4 and a locking assembly 5. The support plate 4 is hinged to one side of the base plate 1. A limit block 6 is provided on the base plate 1 on the side corresponding to the support plate 4. The opening and closing angle of the support plate 4 is 90-130 degrees. The locking assembly 5 includes a lock housing 51, a spring 52 and a locking pin 53. The lock housing 51 is fixed on the base plate 1. The locking pin 53 and the spring 52 are installed inside the lock housing 51. The locking pin 53 can limit the support plate 4. A protrusion 41 is provided on the side of the support plate 4 corresponding to the locking assembly 5. The locking pin 53 can abut against the surface of the protrusion 41. In order to facilitate the operator to push the locking pin 53 by hand, an outward-folding block 531 is provided on the end side of the locking pin 53 near the protrusion 41. The outward-folding block 531 increases the end area of ​​the locking pin 53.

[0025] With the anti-tipping mechanism in place, when loading PCB circuit boards, the loading rack is placed upside down on the table via the U-shaped frame 3. The support plate 4 flips outward under the action of gravity, and the locking pin 53 in the locking assembly 5 extends outward under the action of the spring 52. When the loading rack is full of PCB circuit boards, the base plate 1 is flipped over, and the loading rack is supported in an inclined state by the support plate 4. After that, it is convenient for the staff to grasp the U-shaped frame 3.

[0026] After the test, the loading rack can be placed in an inclined position via the support plate 4, and the loading rack can be laid flat on the table by holding the two sides of the rear handrail base plate 1, which greatly facilitates the operation of the staff.

[0027] The base plate 1, positioning rod 21, locking stud, fastening nut 23 and spacer 24 are all made of corrosion-resistant materials.

[0028] The implementation principle of a loading rack for salt spray testing of PCB circuit boards in this application embodiment is as follows:

[0029] With the positioning rod 21 and several spacers 24, multiple PCB circuit boards can be placed on the positioning rod 21 during use. A spacer 24 is placed between adjacent PCB circuit boards. Finally, the spacers 24 and PCB circuit boards are squeezed together by the fastening nut 23. The spacers 24 can leave gaps between the PCB circuit boards so that the salt spray and water vapor can fully contact the PCB circuit boards and ensure the accuracy of the test results.

[0030] 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, principle and application direction of this application should be covered within the scope of protection of this application.

Claims

1. A loading rack for salt spray testing of PCB circuit boards, characterized in that: The system includes a substrate (1), on which multiple sets of connection holes (11) are formed. A positioning component (2) is detachably fixed in each set of connection holes (11). The positioning component (2) includes a positioning rod (21), a locking nut (22), a fastening nut (23), and several spacers (24). The positioning rod (21) has threaded sections at both ends and a stop ring (211) at one end. The positioning rod (21) is fixed on the substrate (1) by the stop ring (211) and the locking nut (22). The positioning rod (21) matches the mounting hole on the PCB circuit board. The spacers (24) are movably sleeved on the positioning rod (21). A PCB circuit board is arranged between adjacent spacers (24). A U-shaped frame (3) is symmetrically fixed on the side of the substrate (1) away from the positioning rod (21).

2. The loading frame for PCB circuit board salt spray testing according to claim 1, characterized in that: An anti-tipping mechanism is installed on one side of the substrate (1). The anti-tipping mechanism includes a support plate (4) and a locking assembly (5). The support plate (4) is hinged to one side of the substrate (1). The locking assembly (5) includes a lock housing (51), a spring (52), and a locking pin (53). The lock housing (51) is fixed on the substrate (1). The locking pin (53) and the spring (52) are installed inside the lock housing (51). The locking pin (53) can limit the position of the support plate (4).

3. The loading frame for salt spray testing of PCB circuit boards according to claim 2, characterized in that: A limiting block (6) is provided on one side of the substrate (1) corresponding to the support plate (4), and the opening and closing angle of the support plate (4) is 90-130 degrees.

4. The loading frame for PCB circuit board salt spray testing according to claim 3, characterized in that: The support plate (4) is provided with a protrusion (41) on one side corresponding to the locking assembly (5), and the locking pin (53) can abut against the surface of the protrusion (41).

5. The loading frame for PCB circuit board salt spray testing according to claim 4, characterized in that: The locking pin (53) has an outward-turning block (531) on the end side near the protrusion (41).

6. The loading frame for salt spray testing of PCB circuit boards according to claim 1, characterized in that: The base plate (1), positioning rod (21), locking stud, fastening nut (23) and spacer (24) are all made of corrosion-resistant materials.

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