PCB anti-floating gland

Abstract

The utility model relates to the field of PCB parts, and discloses an anti-floating gland for a PCB. According to the device, a fixed groove is formed in the outer surface of the lower end of a lower pressing column, a movable groove is formed in the outer surface of the lower pressing column, an upper limiting strip is fixedly connected to the outer surface, corresponding to the upper portion of the movable groove, of the lower pressing column, and a reference limiting strip is fixedly connected to the outer surface, beside the movable groove, of the lower pressing column; the lower pressing column is fixedly connected with a rubber strip on the outer surface below the reference limiting strips, movable grooves are formed in the surfaces of the two corresponding adjacent sides of the lower pressing column, the reference limiting strips are arranged on the surfaces of the other two sides of the lower pressing column, the reference limiting strips are clamped in the movable grooves and move up and down correspondingly, and the upper limiting strip completes limiting on the upper portion. The rubber strips provide friction force through deformation extrusion, stable movement between the movable grooves and the reference limiting strips is guaranteed, and the number of the downward pressing column arrays is correspondingly determined according to the size of the PCB.

Description

Technical Field

[0001] This application belongs to the field of PCB board component technology, specifically a PCB board anti-floating pressure cover. Background Technology

[0002] After soldering electronic components onto a PCB board, low solder joints or weak solder joints can cause components to wobble, increasing the risk of desoldering. Using a pressure cap is an effective solution in this situation. The pressure cap applies pressure to stabilize the solder joints, preventing component displacement under vibration or external forces, reducing stress on the solder joints, ensuring a strong weld connection, and improving the overall reliability of the assembly. Using pressure caps can effectively extend the lifespan of electronic products and reduce malfunctions caused by desoldering.

[0003] For example, application CN203792200U discloses a PCB board anti-floating cover, which includes an upper cover and a lower cover. The upper cover includes an upper cover body and a PCB board supporting component. The PCB board supporting component is used to support and fix the components on the PCB board. The PCB board supporting component includes an outer cylinder, a baffle, a spring, a supporting rod, and a spring connecting rod. The outer cylinder is cylindrical and has a cavity for accommodating the spring connecting rod, the spring, the baffle, and part of the supporting rod. One end of the spring connecting rod is connected to the upper cover body through a connecting part, and the other end is connected to the end of the spring near the upper cover body. The end of the spring away from the upper cover body is connected to the baffle. A part of the supporting rod extends into the outer cylinder and is connected to the lower bottom surface of the baffle. The PCB board anti-floating cover of this utility model can elastically fix the components on the PCB board, providing good protection for the components on the PCB board.

[0004] However, the corresponding cap size is fixed in this application, which is not conducive to the PCB board freely switching the cap size when DIY is required. Utility Model Content

[0005] The purpose of this application is to provide a PCB board anti-floating pressure cover to solve the problem that the fixed pressure cover size mentioned above is not conducive to the free switching of pressure cover size when DIY is required.

[0006] The technical solution adopted in this application is as follows: a PCB board anti-floating pressure cover includes a lower pressure post, a fixed groove is provided on the outer surface of the lower end of the lower pressure post, a movable groove is provided on the outer surface of the lower pressure post, an upper limit strip is fixedly connected to the outer surface of the lower pressure post above the movable groove, a reference limit strip is fixedly connected to the outer surface of the lower pressure post next to the movable groove, and a rubber strip is fixedly connected to the outer surface of the lower pressure post below the reference limit strip.

[0007] By adopting the above technical solution, movable grooves are set on the adjacent two side surfaces of the pressure column, and reference limiting strips are set on the other two side surfaces. The reference limiting strips are stuck inside the movable grooves and move up and down accordingly. The upper limiting strip completes the limit at the top. The rubber strip provides friction through deformation and extrusion to ensure the stability of the movement between the movable grooves and the reference limiting strips. The number of pressure column arrays is determined according to the size of the PCB board.

[0008] In a preferred embodiment, a long fixing strip is movably inserted into the outer surface of the corresponding fixing groove of the lower pressing column, a middle fixing strip is movably inserted into the outer surface of the long fixing strip, and a short fixing strip is movably inserted into the outer surface of the middle fixing strip.

[0009] By adopting the above technical solution, after the pressure column array is placed, the four sides of the array are fixed by interlocking the long fixing strip, middle fixing strip and short fixing strip below.

[0010] In a preferred embodiment, a protrusion is fixedly connected to the outer surface of the long fixing strip, and a connecting groove is provided on the outer surface of the end of the long fixing strip away from the protrusion.

[0011] By adopting the above technical solution, the protrusion and the connecting groove are placed on both sides of the corresponding long fixing strip, middle fixing strip, short fixing strip, right-angle protrusion, right-angle connecting block, first connecting block and second connecting block. The connection and fixation are completed by inserting the protrusion into the connecting groove and the deformation of the protrusion into the connecting groove.

[0012] In a preferred embodiment, a right-angle protrusion is movably inserted into the outer surface of the long fixing strip, and a right-angle connecting block is movably inserted into the outer surface of the long fixing strip.

[0013] By adopting the above technical solution, the right-angle protrusion block is composed of two protrusion blocks at both ends, and the right-angle connecting block is composed of a protrusion block and a connecting groove at each end, which then forms a fixed connection at the four corners of the pressing column array.

[0014] In a preferred embodiment, a first connecting block is movably inserted into the outer surface of the long fixing strip, and a second connecting block is movably inserted into the outer surface of the long fixing strip.

[0015] By adopting the above technical solution, the second connecting block is composed of connecting grooves at both ends, and the first connecting block is composed of a protrusion and a connecting groove at each end, which then forms a fixed connection at the four corners of the pressing column array.

[0016] In a preferred embodiment, a sealing plate is provided on the upper surface of the pressing column, and a sealing plate is also provided on the side surface of the pressing column corresponding to the reference limiting strip.

[0017] By adopting the above technical solution, the sealing plate can be broken to complete the ventilation and heat dissipation between the outside and the PCB board. The PVC material is brittle and easy to break by external force.

[0018] In a preferred embodiment, a thermally conductive silicone sheet is fixedly connected to the lower surface of the pressure column, and an outer fixing ring is fixedly connected to the outer surface of the pressure column corresponding to the reference limiting strip.

[0019] By adopting the above technical solution, after the pressure cap is pressed down, the thermally conductive silicone sheet is attached to the PCB board components for fixation, which also facilitates heat dissipation of parts that need heat dissipation.

[0020] In a preferred embodiment, the outer fixing ring is made of soft silicone, and the sealing plate is made of PVC.

[0021] By adopting the above technical solutions, the soft silicone material is chemically stable, corrosion-resistant, and tough, making it easy to fix the pressure column, while the PVC material is brittle and easy to break by external force.

[0022] In summary, due to the adoption of the above technical solution, the beneficial effects of this application are:

[0023] 1. Movable grooves are set on the adjacent two sides of the pressure column, and reference limit strips are set on the other two sides. The reference limit strips are stuck inside the movable grooves and move up and down accordingly. The upper limit strip completes the limit at the top. The rubber strip provides friction through deformation and extrusion to ensure the stability of the movement between the movable grooves and the reference limit strips. The number of pressure column arrays is determined according to the size of the PCB board.

[0024] Second, the pressure column facilitates the stability of PCB board components after being pressed down, the thermally conductive silicone sheet ensures stable heat dissipation on the surface, and the placement of the sealing plate facilitates the setting of different heat dissipation channels. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the device outline in this application;

[0026] Figure 2 This is a disassembled diagram of the equipment structure in this application;

[0027] Figure 3 This is a schematic diagram of the bottom connection structure in this application;

[0028] Figure 4 This is a schematic diagram of the lower pressure column structure in this application.

[0029] The markings in the diagram are: 1. Lower pressure column; 2. Fixed groove; 3. Movable groove; 4. Upper limit bar; 5. Reference limit bar; 6. Rubber strip; 7. Long fixing bar; 8. Middle fixing bar; 9. Short fixing bar; 10. Right-angle protrusion block; 11. Right-angle connecting block; 12. First connecting block; 13. Second connecting block; 14. Sealing plate; 15. Thermally conductive silicone sheet; 16. Outer fixing ring; 17. Protrusion block; 18. Connecting groove; 19. Limiting block. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the embodiments of this application. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0031] Example:

[0032] Reference Figure 1-4 A PCB board anti-floating pressure cover includes a lower pressure post 1, a fixed groove 2 is provided on the lower outer surface of the lower pressure post 1, a movable groove 3 is provided on the outer surface of the lower pressure post 1, an upper limit strip 4 is fixedly connected to the upper outer surface of the lower pressure post 1 corresponding to the movable groove 3, a reference limit strip 5 is fixedly connected to the outer surface of the lower pressure post 1 next to the movable groove 3, and a rubber strip 6 is fixedly connected to the outer surface of the lower pressure post 1 below the reference limit strip 5.

[0033] The lower pressure column 1 has movable grooves 3 on its adjacent two side surfaces, and reference limit strips 5 are set on the other two side surfaces. The reference limit strips 5 are stuck inside the movable grooves 3 and move up and down accordingly. The upper limit strip 4 completes the limit at the top. The rubber strip 6 provides friction through deformation and extrusion to ensure the stability of the movement between the movable grooves 3 and the reference limit strips 5. The number of lower pressure column arrays is determined according to the size of the PCB board.

[0034] Reference Figure 1-4 The outer surface of the lower pressure column 1 is movably connected to the fixed groove 2 with a long fixing strip 7, the outer surface of the long fixing strip 7 is movably connected to a middle fixing strip 8, and the outer surface of the middle fixing strip 8 is movably connected to a short fixing strip 9.

[0035] After the array of pressure columns 1 is placed, the array is fixed on all four sides by interlocking the long fixing strip 7, the middle fixing strip 8, and the short fixing strip 9 below.

[0036] Reference Figure 1-4 A protrusion 17 is fixedly connected to the outer surface of the long fixing strip 7, and a connecting groove 18 is provided on the outer surface of the end of the long fixing strip 7 away from the protrusion 17.

[0037] The protrusion 17 and the connecting groove 18 are placed on both sides of the corresponding long fixing strip 7, middle fixing strip 8, short fixing strip 9, right-angle protrusion 10, right-angle connecting block 11, first connecting block 12, and second connecting block 13. The protrusion 17 is inserted into the connecting groove 18, and the deformation of the protrusion 17 is engaged in the connecting groove 18 to complete the connection and fixation.

[0038] Reference Figure 1-4A right-angle protrusion 10 is movably inserted into the outer surface of the long fixing strip 7, and a right-angle connecting block 11 is movably inserted into the outer surface of the long fixing strip 7.

[0039] The right-angle protrusion 10 is composed of two protrusions 17 at both ends, and the right-angle connecting block 11 consists of a protrusion 17 at each end and a connecting groove 18, which in turn fixes the four corners of the pressing column 1 array.

[0040] Reference Figure 1-4 A first connecting block 12 is movably inserted into the outer surface of the long fixing strip 7, and a second connecting block 13 is movably inserted into the outer surface of the long fixing strip 7.

[0041] The second connecting block 13 consists of connecting grooves 18 at both ends, and the first connecting block 12 consists of a protrusion 17 and a connecting groove 18 at each end, which in turn fixes the four corners of the pressing column 1 array.

[0042] Reference Figure 1-4 A sealing plate 14 is provided on the upper surface of the pressure column 1, and a sealing plate 14 is also provided on the side surface of the pressure column 1 corresponding to the reference limit strip 5.

[0043] The sealing plate 14 completes the ventilation and heat dissipation between the outside and the PCB board by breaking it open. The PVC material is brittle and easy to break open by external force.

[0044] Reference Figure 1-4 A thermally conductive silicone sheet 15 is fixedly connected to the lower surface of the pressure column 1, and an outer fixing ring 16 is fixedly connected to the outer surface of the corresponding reference limit strip 5.

[0045] After the pressure cap is pressed down, the thermally conductive silicone sheet 15 is attached to the PCB board components for fixation, which also facilitates heat dissipation for parts that need heat dissipation.

[0046] Reference Figure 1-4 The outer fixing ring 16 is made of soft silicone, and the sealing plate 14 is made of PVC.

[0047] The soft silicone material is chemically stable, corrosion-resistant, and tough, making it easy to fix the pressure column 1. The PVC material is brittle and easy to break by external force.

[0048] The implementation principle of the PCB board anti-floating pressure cover embodiment of this application is as follows:

[0049] The lower pressure column 1 has movable grooves 3 on its adjacent two side surfaces, and reference limit strips 5 on its other two side surfaces. The reference limit strips 5 are locked inside the movable grooves 3, allowing for vertical movement. The upper limit strip 4 completes the limit at the top. The rubber strip 6 provides friction through deformation and extrusion, ensuring stable movement between the movable grooves 3 and the reference limit strips 5. The number of lower pressure column arrays 1 is determined according to the size of the PCB board. After the lower long fixing strip 7, middle fixing strip 8, and short fixing strip 9 are connected by the protrusions 17 and connecting grooves 18, the limit block 19 is inserted into the fixing groove 2 to connect the four sides. Finally, the right-angle protrusions 10 are used to connect the four sides. Right-angle connecting block 11, first connecting block 12, and second connecting block 13 are connected at corresponding right angles. Right-angle protrusion block 10 is composed of two protrusion blocks 17 at both ends, and second connecting block 13 is composed of two connecting grooves 18 at both ends. Then, the outermost part of the array of pressing column 1 is fixed, and the upper end is fixed by the outer fixing ring 16 inserted into the reference limiting strip 5. In use, by pressing down as a whole, the corresponding position is lifted by the pressing column 1 to complete the fixation of the PCB board components below. In the part that needs heat dissipation, the sealing plate 14 is broken open to complete the ventilation and heat dissipation. The thermal conductive silicone sheet 15 below also provides a guarantee for heat dissipation and better adhesion.

[0050] The above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

Claims

1. A PCB board anti-floating pressure cover, comprising a lower pressure post (1), characterized in that: The lower end of the pressing column (1) is provided with a fixed groove (2), the outer surface of the pressing column (1) is provided with a movable groove (3), the upper limit bar (4) is fixedly connected to the upper outer surface of the pressing column (1) corresponding to the movable groove (3), the lower pressure column (1) is fixedly connected to the outer surface next to the movable groove (3) with a reference limit bar (5), and the lower pressure column (1) is fixedly connected to the outer surface below the reference limit bar (5) with a rubber strip (6).

2. The PCB board anti-floating pressure cover as described in claim 1, characterized in that: The lower pressure column (1) has a long fixing strip (7) movably inserted into the outer surface of the corresponding fixing groove (2), the long fixing strip (7) has a middle fixing strip (8) movably inserted into the outer surface of the middle fixing strip (8), and the middle fixing strip (8) has a short fixing strip (9) movably inserted into the outer surface of the middle fixing strip (8).

3. The PCB board anti-floating pressure cover as described in claim 2, characterized in that: The long fixing strip (7) has a protrusion (17) fixedly connected to its outer surface, and a connecting groove (18) is provided on the outer surface of the long fixing strip (7) away from the protrusion (17).

4. The PCB board anti-floating pressure cover as described in claim 2, characterized in that: The outer surface of the long fixing strip (7) is movably connected to a right-angle protrusion (10), and the outer surface of the long fixing strip (7) is movably connected to a right-angle connecting block (11).

5. A PCB board anti-floating pressure cover as described in claim 2, characterized in that: The outer surface of the long fixing strip (7) is movably connected to a first connecting block (12), and the outer surface of the long fixing strip (7) is movably connected to a second connecting block (13).

6. The PCB board anti-floating pressure cover as described in claim 1, characterized in that: The upper surface of the pressing column (1) is provided with a sealing piece (14), and the side surface of the pressing column (1) corresponding to the reference limiting strip (5) is also provided with a sealing piece (14).

7. A PCB board anti-floating pressure cover as described in claim 6, characterized in that: A thermally conductive silicone sheet (15) is fixedly connected to the lower surface of the pressure column (1), and an outer fixing ring (16) is fixedly connected to the outer surface of the pressure column (1) corresponding to the reference limiting strip (5).

8. A PCB board anti-floating pressure cover as described in claim 7, characterized in that: The outer fixing ring (16) is made of soft silicone, and the sealing piece (14) is made of PVC.

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