A PCB board

Abstract

This utility model discloses a PCB board, including a base plate with a groove inside, and a rubber layer inside the groove; a PCB board body disposed in the groove; a cover plate with a raised shell on top, and a square groove with a plurality of heat dissipation holes evenly spaced inside the square groove; and a shielding member movably connected to the square groove, which can be positioned in a first or a second position. When in the first position, the shielding member does not block the heat dissipation holes, and the heat dissipation holes are in an open state. When in the second position, the shielding member blocks the heat dissipation holes, and the heat dissipation holes are in a closed state. The beneficial effect of this utility model is that it solves the technical problem in the prior art where the installation and removal of PCB boards are cumbersome, and the lack of a shielding structure for the heat dissipation holes allows dust to easily enter the casing during subsequent disassembly and maintenance of the PCB board, thus affecting the service life of the PCB board.

Description

Technical Field

[0001] This utility model relates to the field of PCB board technology, and specifically to a PCB board. Background Technology

[0002] PCB, or Printed Circuit Board, is an important electronic component. It serves as the support for electronic components and the carrier for the electrical interconnection of these components.

[0003] Chinese utility model patent 2022235007082 proposes a "composite PCB board". This device mainly solves the inconvenience of traditional screw fixing methods, allowing installation and disassembly to be completed by rotating a disc, and providing good protection for electronic components. However, the device also has certain limitations. For example, the overall structure is relatively complex, and the ends of the screws are exposed for a long time, which is prone to oxidation, thus increasing manufacturing costs. On the other hand, the PCB board still has heat dissipation problems. Although heat dissipation holes are added to improve the heat dissipation effect, the exposed heat dissipation holes are not equipped with corresponding shielding devices during subsequent maintenance, which makes it easy for dust to enter during disassembly and maintenance, thereby affecting the service life of the PCB board. Utility Model Content

[0004] The purpose of this utility model is to overcome the above-mentioned technical deficiencies and provide a PCB board that solves the technical problem that the installation and removal of PCB boards in the prior art are cumbersome and that no shielding structure is set for the heat dissipation holes. When the PCB board is disassembled and repaired in the future, dust can easily enter the inside of the casing, thereby affecting the service life of the PCB board.

[0005] To achieve the above-mentioned technical objectives, the present invention adopts the following technical solution:

[0006] In a first aspect, this utility model provides a PCB board, comprising:

[0007] The base plate has a groove inside, and the groove is lined with a rubber layer.

[0008] A PCB board body, which is disposed within the groove;

[0009] The cover plate has a raised shell on its top, and a square groove is opened at the upper end of the raised shell. Several heat dissipation holes are opened at equal intervals in the square groove.

[0010] A shielding member is movably connected within the square groove and can be located in a first or second position. When located in the first position, the shielding member does not block the heat dissipation hole, and the heat dissipation hole is in an open state. When located in the second position, the shielding member blocks the heat dissipation hole, and the heat dissipation hole is in a closed state.

[0011] The fastener includes a buckle, and a connecting groove is provided between the base plate and the cover plate. The buckle is provided in the connecting groove and is used to fasten the base plate, the PCB board and the cover plate.

[0012] In some embodiments, the base plate has a rectangular cross-section, two positioning grooves are provided on both sides of the base plate, and three positioning grooves are provided at the top and bottom ends of the base plate.

[0013] In some embodiments, the side of the cover plate facing the base plate is provided with a plurality of positioning blocks that correspond one-to-one with the positioning grooves.

[0014] In some embodiments, the shielding member includes a movable plate slidably connected within the square groove, and the movable plate has an auxiliary through hole that mates with the heat dissipation hole. The length of the movable plate is less than the length of the square groove, and the movable plate can be located in a first position or a second position within the square groove. When the movable plate is in the first position, the auxiliary through hole and the heat dissipation hole coincide, and the heat dissipation hole is in a heat dissipation state. When the movable plate is in the second position, the auxiliary through hole and the heat dissipation hole are staggered, and the movable plate shields the heat dissipation hole, and the heat dissipation hole is in a closed state.

[0015] In some embodiments, a column is fixed on the movable plate, and a dustproof plate for covering the square groove is provided at the upper end of the raised shell. The dustproof plate is provided with a through groove for the sliding end of the column to move.

[0016] In some embodiments, the buckle includes a shaping block with a slot, and an extension block is provided at the upper end of the shaping block, the extension block being used to change the size of the slot opening.

[0017] In some embodiments, the connecting groove includes a plurality of first grooves disposed on the base plate, a first groove is disposed on both sides of the base plate and between two of the positioning grooves, and two first grooves are disposed at the upper and lower ends of the base plate and between three of the positioning grooves. A first column is fixed in any one of the first grooves, and a plastic block is rotatably connected to the column.

[0018] In some embodiments, the cover plate has a plurality of second grooves corresponding one-to-one with the first groove on the side facing the base plate, and a second column is fixed in any one of the second grooves, with the shaping block engaging on the surface of the second column.

[0019] In some embodiments, the cross-section of the card slot is a C-shaped notch.

[0020] In some embodiments, both the base plate and the cover plate are plastic plates.

[0021] Compared with existing technologies, the PCB board provided by this utility model features a raised shell with heat dissipation holes on the cover plate, and a slidingly switchable shielding component within it. This allows the heat dissipation holes to be flexibly opened or closed according to actual usage needs. In maintenance or non-working states, the shielding component can be moved to a second position to block the heat dissipation holes, effectively preventing dust and impurities from entering the shell and avoiding contamination or short circuits of electronic components. This improves the overall stability and reliability of the equipment and extends the service life of the PCB board. In the first position, the shielding component can cooperate with the heat dissipation holes to form a passage, achieving effective heat dissipation and improving heat dissipation efficiency. During subsequent maintenance, the shielding component can be adjusted to the second position to close the heat dissipation holes, effectively blocking dust and meeting the needs of different application scenarios. A snap-fit ​​component enables quick connection and separation between the base plate, PCB board body, and cover plate without the need for additional screws or tools, greatly improving assembly efficiency and reducing manual operation difficulty and time costs. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the assembly of the base plate and the PCB body of the PCB board provided in this embodiment of the utility model;

[0023] Figure 2 This is a bottom view of the cover plate of the PCB board provided in this embodiment of the utility model;

[0024] Figure 3 This is a top view of the cover plate of the PCB board provided in this embodiment of the utility model;

[0025] Figure 4 This is a schematic diagram of the interior of the raised shell of the PCB board provided in this embodiment of the utility model;

[0026] Figure 5 This is a side view of the raised shell of the PCB board provided in this embodiment of the utility model;

[0027] Figure 6 This is the PCB board provided in the embodiment of the present utility model. Figure 4 Enlarged diagram of point A in the middle.

[0028] Explanation of reference numerals in the attached drawings: 1. Base plate; 11. Rubber layer; 12. Positioning groove; 2. PCB board; 3. Cover plate; 31. Positioning block; 4. Raised shell; 41. Heat dissipation hole; 5. Shielding component; 51. Movable plate; 511. Auxiliary through hole; 512. Column; 53. Dustproof plate; 531. Movable through groove; 6. Clamping component; 61. Buckle; 611. Shaping block; 612. Slot; 613. Extension block; 62. Connecting groove; 621. First groove; 6211. First column; 622. Second groove; 6221. Second column. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0030] To address the technical problem that existing PCB boards are cumbersome to install and remove, and lack shielding structures for heat dissipation holes, allowing dust to easily enter the casing during subsequent disassembly and repair, thus affecting the PCB board's lifespan, this invention provides a PCB board that facilitates easy installation and removal, while also shielding the heat dissipation holes to prevent dust from entering during subsequent disassembly and repair.

[0031] Please see Figure 1 , Figure 1 This is a schematic diagram of the structure of a PCB board in one embodiment of the present invention. A PCB board includes a base plate 1, which has a groove inside and a rubber layer 11 inside the groove.

[0032] PCB board 2, which is set in the groove;

[0033] The cover plate 3 has a raised shell 4 on its top, and a square groove is opened at the upper end of the raised shell 4. Several heat dissipation holes 41 are opened at equal intervals in the square groove.

[0034] The shielding member 5 is movably connected in the square groove and can be located in the first or second position. When it is located in the first position, the shielding member 5 does not shield the heat dissipation hole 41 and the heat dissipation hole 41 is in the open state. When it is located in the second position, the shielding member 5 shields the heat dissipation hole 41 and the heat dissipation hole 41 is in the closed state.

[0035] The fastener 6 includes a buckle 61, and a connecting groove 62 is provided between the base plate 1 and the cover plate 3. The buckle 61 is provided in the connecting groove 62 and is used to fasten the base plate 1, the PCB board 2 and the cover plate 3.

[0036] In this embodiment, a raised shell 4 with heat dissipation holes 41 is provided on the cover plate 3, and a slidable and switchable shielding member 5 is configured therein. This allows the heat dissipation holes 41 to be flexibly opened or closed according to actual usage needs. In maintenance or non-working state, by moving the shielding member 5 to the second position, it can shield the heat dissipation holes 41, effectively preventing dust, impurities, etc. from entering the shell, avoiding contamination or short circuits of electronic components, thereby improving the stability and reliability of the overall equipment and extending the service life of the PCB board. When in the first position, the shielding member 5 can cooperate with the heat dissipation holes 41 to form a passage, achieving effective heat dissipation and improving heat dissipation efficiency. During subsequent maintenance, the heat dissipation holes 41 can be closed by adjusting the shielding member 5 to the second position, effectively shielding dust and meeting the needs of different application scenarios. The quick connection and separation between the base plate 1, PCB board 2 and cover plate 3 is achieved through the snap-fit ​​member 6, without the need for additional screws or tools, which greatly improves assembly efficiency and reduces the difficulty and time cost of manual operation.

[0037] In one embodiment, please refer to Figures 1-4 To facilitate the fastening efficiency between the base plate 1, the PCB board and the cover plate 3, the base plate 1 has a rectangular cross-section. Two positioning grooves 12 are opened on both sides of the base plate 1, and three positioning grooves 12 are opened at the top and bottom ends of the base plate 1. Several positioning blocks 31 corresponding to the positioning grooves 12 are provided on the side of the cover plate 3 facing the base plate 1.

[0038] In this embodiment, by setting the positioning groove 12 and the positioning block 31, the precise alignment between the base plate 1 and the cover plate 3 is ensured. During the assembly process, the positioning block 31 is accurately embedded in the corresponding positioning groove 12, avoiding assembly errors or component misalignment caused by positional deviations, greatly improving assembly accuracy, and enabling the PCB board 2 to be stably installed in the predetermined position. The cooperation between the positioning groove 12 and the positioning block 31 is not limited to positioning function, but also enhances the mechanical stability of the overall structure. Through the synergistic effect of multiple positioning points, the connection between the base plate 1 and the cover plate 3 is tighter and more secure, reducing the risk of loosening caused by vibration or impact, and is especially suitable for working environments with frequent vibration. The precise positioning structure simplifies the alignment steps during assembly, allowing operators to quickly complete assembly without repeated adjustments. This not only saves time and reduces labor costs but also minimizes errors caused by manual adjustments. When the PCB board needs repair or replacement, the cooperation between the positioning slot 12 and the positioning block 31 makes disassembly and reinstallation simple and quick. Operators can easily remove and reinstall the cover plate 3, ensuring that it can be restored to its original state after each assembly. This guarantees long-term stable operation of the equipment. Accurate positioning also ensures that the final product has a neat and beautiful appearance, avoiding visual defects caused by asymmetry or irregularity, and enhancing the product's market competitiveness.

[0039] In one embodiment, please refer to Figures 1-5 To improve heat dissipation and dust prevention, the shielding component 5 includes a movable plate 51, which is slidably connected to the square groove. The movable plate 51 has an auxiliary through hole 511 that cooperates with the heat dissipation hole 41. The length of the movable plate 51 is less than the length of the square groove. The movable plate 51 can be located in a first position or a second position in the square groove. When the movable plate 51 is in the first position, the auxiliary through hole 511 and the heat dissipation hole 41 are aligned, and the heat dissipation hole 41 is in a heat dissipation state. When the movable plate 51 is in the second position, the auxiliary through hole 511 and the heat dissipation hole 41 are staggered, and the movable plate 51 shields the heat dissipation hole 41, and the heat dissipation hole 41 is in a closed state. A column 512 is fixed on the movable plate 51. A dustproof plate 53 for shielding the square groove is provided at the upper end of the raised shell 4. The dustproof plate 53 has a through groove 531 for the sliding end of the column 512 to move.

[0040] In this embodiment, when the movable plate 51 is in the first position, the auxiliary through hole 511 coincides with the heat dissipation hole 41, allowing heat to be effectively dissipated through the heat dissipation hole 41. This ensures that the PCB board maintains good heat dissipation performance in high-temperature working environments and prevents overheating damage. When the movable plate 51 slides to the second position, the auxiliary through hole 511 and the heat dissipation hole 41 are staggered, and the movable plate 51 blocks the heat dissipation hole 41, preventing dust and impurities from entering the equipment, thereby extending the service life of the PCB board and reducing maintenance frequency. The movable plate 51 is slidably connected to the square groove. The operator can install an electric telescopic rod in the installation equipment. By pushing or pulling the column 512 with the electric telescopic rod, the position of the movable plate 51 can be easily switched, realizing the opening or closing of the heat dissipation hole 41. The length is designed to be less than that of the square groove, providing sufficient sliding space and ensuring smooth operation. This compact design is suitable for equipment of various sizes and shapes, with strong adaptability and flexibility. The design of the dustproof plate 53 not only protects the movable plate 51 from the influence of the external environment, but also ensures the stability during operation by opening a movable through groove 531 for the sliding end of the column 512. This dual protection measure significantly improves the overall sealing and dustproof capability of the equipment and reduces the risk of failure caused by dust accumulation. The structure of the adjustable heat dissipation hole 41 is suitable for occasions that require frequent adjustment of heat dissipation strategies, such as industrial automation equipment and server racks. It can meet the heat dissipation requirements during high-performance computing and provide effective dust protection during off-peak hours or during transportation and storage.

[0041] In one embodiment, please refer to Figures 1-6To improve the connection efficiency between the base plate 1, the PCB board, and the cover plate 3, the buckle 61 includes a molding block 611 with a slot 612. An extension block 613 is provided at the upper end of the molding block 611, which can be used to change the size of the slot 612. The connecting groove 62 includes several first grooves 621 on the base plate 1. A first groove 621 is provided on both sides of the base plate 1 between two positioning grooves 12, and a first groove 621 is provided at the upper and lower ends of the base plate 1 between three positioning grooves 12. There are two first grooves 621, and a first column 6211 is fixed in either of the first grooves 621. A plastic block 611 is rotatably connected to the column 512. The cover plate 3 has several second grooves 622 that correspond one-to-one with the first grooves 621 on the side facing the base plate 1. A second column 6221 is fixed in either of the second grooves 622. A plastic block 611 is engaged on the surface of the second column 6221. The cross-section of the groove 612 is a C-shaped groove. Both the base plate 1 and the cover plate 3 are plastic plates.

[0042] In this embodiment, by setting the slot 612 and extension block 613 on the molding block 611, the operator can manually adjust the extension block 613 to change the opening size of the slot 612, so that the buckle 61 can adapt to connectors of different thicknesses or shapes, ensuring the stability and reliability of the PCB board in various application scenarios. Since the buckle 61 has a simple structure and is easy to operate, it can realize the quick connection and separation between the base plate 1, PCB board body 2 and cover plate 3 without the use of additional tools, which greatly improves the assembly efficiency and reduces labor costs. The first column 6211 in the first groove 621 and the second column 6221 in the second groove 622 provide a solid support point. The molding block 611 is rotatably connected to the first column 6211 and fixed to the surface of the second column 6221 by a snap-fit ​​method, forming a stable three-point support. The structure enhances the overall mechanical strength. The slot 612 adopts a C-shaped slot design, which not only has good elastic deformation capability, but also provides sufficient clamping force to ensure that the connector is not easy to loosen when subjected to vibration or impact, further improving the reliability of the connection. The first groove 621 set on both sides and the top and bottom ends of the base plate 1 corresponds one-to-one with the second groove 622 on the cover plate 3. Through the cooperation of the positioning groove 12 and the positioning block 31, the precise alignment between the base plate 1 and the cover plate 3 is achieved, avoiding assembly errors or component misalignment caused by position deviation. By rationally distributing multiple first grooves 621 and second grooves 622, and combining the rotational connection method of the plastic block 611, the entire buckle 61 structure can operate efficiently in a limited space, minimizing the volume occupied, and is suitable for small equipment or embedded structures with limited space.

[0043] To better understand this utility model, the following is combined with... Figures 1 to 6The technical solution of this utility model is described in detail as follows: First, the PCB board 2 is placed into the groove inside the base plate 1. The groove is provided with a rubber layer 11, which plays a role in buffering and shock absorption, preventing damage to components caused by vibration during transportation or operation. The cover plate 3 is moved towards the base plate 1, so that the positioning blocks 31 on the cover plate 3 are embedded one by one into the positioning grooves 12 on the base plate 1, ensuring accurate alignment between the cover plate 3 and the base plate 1. A first column 6211 is provided in the first groove 621 on the base plate 1, and a second groove 622 and a second column 6221 are provided on the cover plate 3. The molding blocks 611 are rotatably connected to each other. The first column 6211 is engaged with the surface of the second column 6221. The C-shaped groove 612 on the molding block 611 adjusts the opening size through the extension block 613 to achieve a tight connection between the base plate 1 and the cover plate 3. The operator only needs to lightly press the cover plate 3 to complete the locking, without the need for screws or tools, which greatly improves the assembly efficiency. The shielding part 5 is a sliding movable plate 51, which is set in a square groove in the raised shell 4 on the top of the cover plate 3. The movable plate 51 has an auxiliary through hole 511. When the movable plate 51 is pushed to the first position, the auxiliary through hole 511 coincides with the heat dissipation hole 41 to form a heat dissipation channel. The movable plate 51 is fixed A column 512 is fixed, passing through the movable slot 531 on the dustproof plate 53. It can be driven by an external pushing device, such as an electric telescopic rod, to push the column 512, causing the movable plate 51 to slide. In this state, heat can be discharged through the heat dissipation holes 41 during equipment operation, effectively reducing the PCB board temperature without manual operation. When dust prevention is required or maintenance is needed, the column 512 is pushed again by the external electric telescopic rod, sliding the movable plate 51 to a second position. At this time, the auxiliary through hole 511 is misaligned with the heat dissipation hole 41, and the movable plate 51 blocks all the heat dissipation holes 41, preventing dust and impurities from entering the interior. Dust plate 53 covers the entire square groove area, further improving the protective effect. When disassembly is required, pull the extension block 613 on the plastic block 611 to change the opening size of the slot 612, release the engagement with the second column 6221, remove the cover plate 3 to expose the PCB board 2, which is convenient for component replacement, cleaning or testing. After maintenance, realign the positioning block 31 and the positioning slot 12, engage the plastic block 611, and restore the overall structure. This device is easy to install and disassemble, requires no screws or tools, and the snap-fit ​​connection 61 greatly improves assembly efficiency. Moreover, the movable plate 51 can be flexibly switched to adapt to different working environments.

[0044] The specific embodiments of this utility model described above do not constitute a limitation on the scope of protection of this utility model. Any other corresponding changes and modifications made based on the technical concept of this utility model should be included within the scope of protection of the claims of this utility model.

Claims

1. A PCB board, characterized by, include: The base plate has a groove inside, and the groove is lined with a rubber layer. A PCB board body, which is disposed within the groove; The cover plate has a raised shell on its top, and a square groove is opened at the upper end of the raised shell. Several heat dissipation holes are opened at equal intervals in the square groove. A shielding member is movably connected within the square groove and can be located in a first or second position. When located in the first position, the shielding member does not block the heat dissipation hole, and the heat dissipation hole is in an open state. When located in the second position, the shielding member blocks the heat dissipation hole, and the heat dissipation hole is in a closed state. The fastener includes a buckle, and a connecting groove is provided between the base plate and the cover plate. The buckle is provided in the connecting groove and is used to fasten the base plate, the PCB board and the cover plate.

2. The PCB board of claim 1, wherein: The base plate has a rectangular cross-section, with two positioning grooves on both sides and three positioning grooves at the top and bottom ends.

3. A PCB board according to claim 2, characterized in that: The cover plate has several positioning blocks on the side facing the base plate that correspond one-to-one with the positioning groove.

4. A PCB board according to claim 1, characterized in that: The shielding component includes a movable plate that is slidably connected within the square groove. The movable plate has an auxiliary through-hole that mates with the heat dissipation hole. The length of the movable plate is less than the length of the square groove. The movable plate can be positioned in a first position or a second position within the square groove. When the movable plate is in the first position, the auxiliary through-hole and the heat dissipation hole coincide, and the heat dissipation hole is in a heat dissipation state. When the movable plate is in the second position, the auxiliary through-hole and the heat dissipation hole are staggered, and the movable plate shields the heat dissipation hole, which is in a closed state.

5. A PCB board according to claim 4, characterized in that: A column is fixed on the movable plate, and a dustproof plate is provided at the upper end of the raised shell to cover the square groove. The dustproof plate has a through groove for the sliding end of the column to move.

6. A PCB board according to claim 2, characterized in that: The buckle includes a shaping block with a slot, and an extension block is provided at the upper end of the shaping block. The extension block can be used to change the size of the slot opening.

7. A PCB board according to claim 6, characterized in that: The connecting groove includes a plurality of first grooves disposed on the base plate. A first groove is disposed on both sides of the base plate and between two positioning grooves. Two first grooves are disposed at the upper and lower ends of the base plate and between three positioning grooves. A first column is fixed in any one of the first grooves, and a plastic block is rotatably connected to the column.

8. A PCB board according to claim 7, characterized in that: The cover plate has several second grooves on the side facing the base plate that correspond one-to-one with the first groove. A second column is fixed in any one of the second grooves, and the plastic block is engaged on the surface of the second column.

9. A PCB board according to claim 8, characterized in that: The cross-section of the slot is C-shaped.

10. A PCB board according to claim 1, characterized in that: Both the base plate and the cover plate are made of plastic.

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