A circuit board reinforcing sheet convenient to disassemble

Abstract

The utility model discloses a circuit board reinforcing sheet convenient to dismount, including reinforcing steel sheet, be equipped with the fin on the reinforcing steel sheet, be equipped with four connecting holes no.

Description

Technical Field

[0001] This utility model relates to the field of circuit board reinforcement sheet technology, specifically a circuit board reinforcement sheet that is easy to install and remove. Background Technology

[0002] Currently, reinforcing sheets are indispensable in the application of flexible printed circuit boards (FPCBs). Their main function is to enhance the mechanical strength of FPCBs and prevent structural damage caused by bending and stretching.

[0003] However, existing reinforcing plates are typically permanently fixed to flexible circuit boards (PCBs) after assembly, requiring damage to the PCB or the use of special tools for removal, which is inconvenient for subsequent installation and disassembly. This significantly increases the difficulty of maintenance and replacement, especially in the case of high-density integration of electronic devices, where troubleshooting and repair of PCBs become particularly challenging. Furthermore, existing reinforcing plates generally have poor heat dissipation performance, limiting the efficiency and lifespan of PCBs. In high-power applications or scenarios involving prolonged continuous operation, heat accumulation is difficult to dissipate effectively, easily leading to localized overheating of the PCB, which in turn causes performance degradation or functional failure.

[0004] Therefore, it is necessary to provide a circuit board reinforcement plate that is easy to disassemble and install, and has good heat dissipation. Utility Model Content

[0005] This invention proposes a circuit board reinforcement piece that is easy to install and remove, in order to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A circuit board reinforcement plate that is easy to install and disassemble includes a reinforcing steel sheet with a heat sink. The reinforcing steel sheet has four connecting holes (first type) and the heat sink has four connecting holes (second type) corresponding to the connecting holes (first type). Connecting posts are fixedly connected to each other in the connecting holes (first type and second type). One end of each connecting post has a circular locking block, and both sides of the other end of each connecting post have triangular movable locking blocks. Two springs are installed inside each connecting post and are fixedly connected to the triangular movable locking blocks on the corresponding side. A fixing frame is provided below the reinforcing steel sheet.

[0008] Preferably, the side of the connecting post has an inner cavity corresponding to the position of the triangular movable locking block. The spring is fixed inside the inner cavity. The triangular movable locking block has a limiting end on one side inside the inner cavity. The opening size of the inner cavity is smaller than the size of the limiting end face of the triangular movable locking block. The limiting end is used to prevent the triangular movable locking block from disengaging from the inner cavity. The triangular movable locking block is a triangular shape with an inclined top surface and a flat bottom surface. The inclined top surface facilitates the retraction of the triangular movable locking block into the inner cavity during installation, while the flat bottom surface serves to lock into the heat sink, preventing the reinforcing steel sheet and heat sink from falling off the circuit board after installation.

[0009] Preferably, the fixing frame has four connecting holes three, each corresponding to one of the connecting holes. The circuit board is clamped and fixed between the fixing frame and the reinforcing steel sheet by the fixing frame.

[0010] Preferably, the reinforcing steel sheet is provided with four positioning grooves that correspond one-to-one with the first connecting hole, and the first connecting hole is located at the center of the corresponding positioning groove.

[0011] Preferably, the bottom of the heat sink has four positioning rings that correspond one-to-one with the second connection hole. The second connection hole is located at the center of the corresponding positioning ring, and the positioning ring is inserted into the positioning groove at the corresponding position. The mating between the positioning ring and the positioning groove facilitates the positioning and assembly of the reinforcing steel sheet and the heat sink, improves assembly efficiency, and prevents positional deviations during assembly.

[0012] Preferably, both ends of the reinforcing steel sheet are provided with circuit board positioning openings. This facilitates positioning and assembly with the areas on the circuit board that require reinforcement.

[0013] Preferably, thermally conductive pads are attached to both the top and bottom surfaces of the reinforcing steel sheet to improve heat conduction.

[0014] Preferably, the top of the heat sink has a fin structure. This increases the heat dissipation area, and the fin-like structure allows for more efficient heat dissipation from the heat sink.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] This invention uses a fixed frame and reinforcing steel sheet to securely clamp and fix a flexible circuit board. A connecting post, circular locking block, triangular movable locking block, and spring enable quick disassembly and assembly of the reinforcing steel sheet, heat sink, circuit board, and fixed frame. Pressing the triangular movable locking block retracts it into the inner cavity, allowing for easy removal of the connecting post. The reinforcing sheet can be installed and removed without damaging the circuit board or using special tools, facilitating later maintenance, component replacement, or upgrades. It is particularly suitable for high-density integrated electronic devices, significantly reducing maintenance difficulty, time, and cost.

[0017] The heat sink employs a finned structure, significantly increasing the heat dissipation surface area, improving air convection efficiency, and accelerating heat dissipation. Thermal pads are adhered to both the top and bottom surfaces of the reinforcing steel sheet, effectively filling the gaps between the reinforcing steel sheet and the circuit board, and between the reinforcing steel sheet and the heat sink. This reduces contact thermal resistance and improves the heat conduction efficiency from the circuit board to the reinforcing steel sheet and then to the heat sink. This effectively prevents heat buildup during high-power applications or prolonged operation, reducing the risk of localized overheating of the circuit board, thereby improving the circuit board's operational stability, reliability, and lifespan.

[0018] The positioning groove on the reinforcing steel sheet and the positioning ring at the bottom of the heat sink use a plug-in fit, allowing for quick and precise alignment of connection holes one and two during assembly. This effectively prevents positional deviations during assembly and greatly improves assembly efficiency and accuracy. The triangular movable locking block has an inclined top surface for easy retraction under pressure during installation, while its flat bottom surface forms a stable locking position with the heat sink. Combined with the circular locking block, it provides a firm locking force after installation, effectively preventing the reinforcing sheet from accidentally falling off due to vibration or force during use. The limiting end design ensures that the triangular movable locking block will not detach from the inner cavity, enhancing the reliability of the structure. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the top axial direction of the overall structure of this utility model in its unassembled state;

[0020] Figure 2 This is a bottom axial view of the overall structure of this utility model in its unassembled state;

[0021] Figure 3 This is a top axial view of the overall structure of this utility model in its assembled state;

[0022] Figure 4 This is a bottom axial view of the overall structure of this utility model in its assembled state;

[0023] Figure 5 This is a schematic diagram of the connecting column structure of this utility model;

[0024] Figure 6 This is a schematic diagram of the cross-sectional structure of the connecting column of this utility model;

[0025] Figure 7 This is an enlarged schematic diagram of the opening of the inner cavity at part A of this utility model.

[0026] 1. Reinforcing steel sheet; 11. Connecting hole one; 12. Positioning groove; 13. Circuit board positioning port; 2. Heat sink; 21. Connecting hole two; 22. Positioning ring; 3. Connecting post; 31. Circular locking block; 32. Triangular movable locking block; 321. Limiting end; 33. Spring; 34. Inner cavity; 4. Fixing frame; 41. Connecting hole three; 5. Thermal pad. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] Reference Figure 1-7 A circuit board reinforcement plate that is easy to install and disassemble includes a reinforcing steel sheet 1, a heat sink 2 on the reinforcing steel sheet 1, four connecting holes 11 on the reinforcing steel sheet 1, and four connecting holes 21 on the heat sink 2 corresponding to the connecting holes 11. Connecting posts 3 are fixedly connected to each other in the connecting holes 11 and 21. A circular locking block 31 is provided at one end of the connecting post 3, and triangular movable locking blocks 32 are provided on both sides of the other end of the connecting post 3. Two springs 33 are provided inside the connecting post 3 and are fixedly connected to the triangular movable locking blocks 32 on the corresponding side. A fixing frame 4 is provided below the reinforcing steel sheet 1.

[0029] The connecting post 3 has an inner cavity 34 on its side corresponding to the position of the triangular movable latch 32. The spring 33 is fixed inside the inner cavity 34. The triangular movable latch 32 has a limiting end 321 on one side inside the inner cavity 34. The opening size of the inner cavity 34 is smaller than the size of the end face of the limiting end 321 of the triangular movable latch 32. The limiting end 321 is used to prevent the triangular movable latch 32 from disengaging from the inner cavity 34. The triangular movable latch 32 is a triangular movable latch 32 with an inclined top surface and a flat bottom surface. The inclined top surface facilitates the retraction of the triangular movable latch 32 into the inner cavity 34 during installation, while the flat bottom surface helps to lock into the heat sink 2, preventing the reinforcing steel sheet 1 and the heat sink 2 from falling off the circuit board after installation.

[0030] The fixing frame 4 has four connecting holes 41, each corresponding to the connecting hole 11. The circuit board is clamped and fixed between the fixing frame 4 and the reinforcing steel sheet 1 by the fixing frame 4.

[0031] The reinforcing steel sheet 1 is provided with four positioning grooves 12 that correspond one-to-one with the connecting hole 11, and the connecting hole 11 is located at the center of the corresponding positioning groove 12.

[0032] The bottom of the heat sink 2 is provided with four positioning rings 22, each corresponding to a connecting hole 21. The connecting hole 21 is located at the center of the corresponding positioning ring 22. The positioning ring 22 is inserted into the positioning groove 12 at the corresponding position. The mating between the positioning ring 22 and the positioning groove 12 facilitates the positioning and assembly of the reinforcing steel sheet 1 and the heat sink 2, improves assembly efficiency, and prevents positional deviations during assembly.

[0033] Both ends of the reinforcing steel sheet 1 are provided with circuit board positioning slots 13. This facilitates positioning and assembly with the areas on the circuit board that require reinforcement.

[0034] Thermal pads 5 are attached to both the top and bottom surfaces of the reinforcing steel sheet 1 to improve heat conduction.

[0035] The top of the heat sink 2 has a finned structure. This increases the heat dissipation area, and the finned structure allows for more efficient heat dissipation from the heat sink 2.

[0036] During assembly, thermal pads 5 are attached to both sides of the reinforcing steel sheet 1. The heat sink 2 is placed on top of the reinforcing steel sheet 1 through the positioning groove 12 and the positioning ring 22. The circuit board is clamped between the fixing frame 4 and the reinforcing steel sheet 1. One end of the connecting post 3 with a triangular movable locking block 32 passes through the bottom of the fixing frame 4 in sequence through the connecting hole 3 41, the connecting hole 11, and the connecting hole 21. Since the top surface of the triangular movable locking block 32 is inclined, it is easy to retract under pressure during installation, allowing the connecting post 3 to pass through smoothly. Since the bottom surface of the triangular movable locking block 32 is flat, after the connecting post 3 passes through the connecting hole 21, it can be effectively locked on the heat sink 2. Furthermore, the triangular movable locking block 32 cannot retract into the inner cavity 34, thus preventing it from falling off.

[0037] During disassembly, simply press the triangular movable blocks 32 on both sides of the connecting post 3 into the inner cavity 34 to separate the connecting post 3 from the connecting hole 3 41, connecting hole 11 and connecting hole 21, thereby completing the separation and disassembly of the corresponding fixing frame 4, circuit board, reinforcing steel sheet 1 and heat sink 2.

[0038] This utility model enables convenient assembly and disassembly of the reinforcing plate through the pressing and disassembly structure of the connecting column 3, and significantly improves the heat dissipation effect of the circuit board through the heat sink 2 and the thermal pad 5.

[0039] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0040] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A circuit board reinforcing sheet that is easy to install and remove, comprising a reinforcing steel sheet (1), characterized in that, The reinforcing steel sheet (1) is provided with a heat sink (2) above it. The reinforcing steel sheet (1) has four connecting holes (11) and the heat sink (2) has four connecting holes (21) corresponding to the connecting holes (11). The connecting holes (11) and the connecting holes (21) are fixedly connected by connecting posts (3). One end of the connecting post (3) is provided with a circular locking block (31). The other end of the connecting post (3) is provided with triangular movable locking blocks (32) on both sides. The connecting post (3) is provided with two springs (33) inside it, which are fixedly connected to the triangular movable locking blocks (32) on the corresponding side. A fixing frame (4) is provided below the reinforcing steel sheet (1).

2. The easily detachable circuit board reinforcing sheet according to claim 1, characterized in that, The side of the connecting column (3) is provided with an inner cavity (34) corresponding to the position of the triangular movable block (32). The spring (33) is fixed inside the inner cavity (34). The triangular movable block (32) is provided with a limiting end (321) on one side inside the inner cavity (34). The opening size of the inner cavity (34) is smaller than the size of the end face of the limiting end (321) of the triangular movable block (32).

3. The easily detachable circuit board reinforcing sheet according to claim 2, characterized in that, The fixed frame (4) has four connecting holes (41) that correspond one-to-one with connecting hole one (11).

4. The easily detachable circuit board reinforcing sheet according to claim 3, characterized in that, The reinforcing steel sheet (1) is provided with four positioning grooves (12) that correspond one-to-one with the connecting hole one (11), and the connecting hole one (11) is located at the center of the corresponding positioning groove (12).

5. The easily detachable circuit board reinforcing sheet according to claim 4, characterized in that, The bottom of the heat sink (2) is provided with four positioning rings (22) that correspond one-to-one with the connection hole two (21). The connection hole two (21) is located at the center of the corresponding positioning ring (22). The positioning ring (22) is inserted into the positioning groove (12) at the corresponding position.

6. The easily detachable circuit board reinforcing sheet according to claim 1, characterized in that, The reinforcing steel sheet (1) has circuit board positioning ports (13) on both sides.

7. The easily detachable circuit board reinforcing sheet according to claim 1, characterized in that, The top and bottom surfaces of the reinforcing steel sheet (1) are both covered with heat-conducting pads (5).

8. The easily detachable circuit board reinforcing sheet according to claim 1, characterized in that, The top of the heat sink (2) has a fin structure.

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