Multilayer PCBA board structure

Abstract

The utility model discloses a multilayer PCBA board structure which comprises an installation board, a heat dissipation board, a PCBA mainboard body, a plugging board and a pair of brake frames, an installation groove is formed in the top of the installation board, and elastic clamping assemblies are arranged on the inner walls of the two ends of the installation groove; a plurality of first heat dissipation holes are formed in the bottom of the mounting groove, first heat dissipation grooves are formed in the bottoms of the first heat dissipation holes, sealing pieces are slidably arranged on the first heat dissipation holes and the first heat dissipation grooves, a braking groove is formed in the top of the mounting plate, a heat dissipation plate is arranged at the top of the sealing pieces, and a PCBA main board body is arranged at the top of the heat dissipation plate; the top of the PCBA mainboard main body is provided with a plugging plate, the top of the plugging plate is provided with a braking notch, the braking groove and the braking notch are mutually connected through a braking frame, the bottom of the braking frame is provided with a connecting assembly, ventilation and heat dissipation can be effectively and conveniently conducted on the multilayer PCBA board structure, and therefore the multilayer PCBA board structure can be conveniently used.

Description

Technical Field

[0001] This utility model relates to the field of PCBA boards, specifically to a multilayer PCBA board structure. Background Technology

[0002] PCBA boards refer to printed circuit boards that have already been assembled with components. They are core components in electronic products. Multilayer PCBA boards refer to assemblies made of multiple layers of printed circuit boards. They are core components of modern high-density electronic devices.

[0003] During the installation process, the multi-layer PCBA board structure cannot effectively dissipate heat, thus affecting its usability. Utility Model Content

[0004] The purpose of this invention is to provide a multilayer PCBA board structure to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A multilayer PCBA board structure includes a mounting plate, a heat sink, a PCBA main board body, a sealing plate, and a pair of braking frames. The mounting plate has a mounting groove at its top center, and elastic clamping components are symmetrically arranged on the inner walls of the left and right ends of the mounting groove. A plurality of first heat dissipation holes are evenly spaced at the bottom of the mounting groove, and a first heat dissipation groove is formed at the bottom of each first heat dissipation hole. Sealing members are slidably arranged on the first heat dissipation holes and the first heat dissipation grooves, and both ends of the sealing members are connected to the first heat dissipation grooves via elastic connecting components. Braking grooves are formed at the left and right ends of the top of the mounting plate. A heat sink is positioned on top of the sealing members, and the PCBA main board body is positioned on top of the heat sink. The sealing plate is positioned on top of the PCBA main board body, and braking recesses are formed at the center of the left and right ends of the top of the sealing plate. The braking grooves and braking recesses are interconnected via braking frames, and a connecting component is provided at the bottom of the braking frame to achieve connection with the braking grooves.

[0007] As an improvement of this utility model: the elastic clamping assembly includes a clamping groove formed on the inner wall of the mounting groove, an elastic clamping plate is provided inside the clamping groove, and the bottom of the elastic clamping plate is connected to the clamping groove through a clamping spring.

[0008] As an improvement of this utility model: the elastic connection component includes a reset spring connected to both ends of the first heat dissipation groove, and the bottom of the reset spring is connected to the sealing component through a connecting block.

[0009] As an improvement of this utility model, brake holes are provided at both ends of the brake groove.

[0010] As an improvement of this utility model: a plurality of second heat dissipation holes are provided at equal intervals on the heat dissipation plate, and a second heat dissipation groove is provided at both ends of the heat dissipation plate located between the second heat dissipation holes.

[0011] As an improvement of this utility model: the connecting assembly includes a connecting cavity opened inside the brake frame, and sliding blocks are provided at both ends of the connecting cavity. The sliding blocks are connected to each other by a connecting spring. A brake rod is provided at the outer end of the sliding block, and the brake rod is located on the outside of the brake frame.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model inserts the heat sink, PCBA main board body, and sealing plate into the mounting groove in sequence, and uses a clamping assembly to stably clamp the heat sink and PCBA main board body. Combined with the braking frames at both ends, it enables rapid installation of multi-layer PCBA main board structures, thus facilitating the installation of multi-layer PCBA board structures. During the installation process, the heat sink presses the sealing piece downwards, opening the first heat dissipation hole and the first heat dissipation groove, thereby facilitating ventilation and heat dissipation of the installed multi-layer PCBA board structure, and thus facilitating its use. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall three-dimensional exploded structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the mounting plate in this utility model;

[0015] Figure 3 This is a cross-sectional view of the mounting plate in this utility model;

[0016] Figure 4 for Figure 3 Enlarged cross-sectional view of the first heat dissipation hole and the first heat dissipation groove at point A in the middle;

[0017] Figure 5 This is a schematic diagram of the heat sink structure in this utility model;

[0018] Figure 6 This is a cross-sectional view of the connecting cavity in this utility model.

[0019] In the diagram: 1. Mounting plate; 2. Threaded mounting hole; 3. Mounting groove; 4. Clamping groove; 5. Clamping spring; 6. Elastic clamping plate; 7. First heat dissipation hole; 8. First heat dissipation groove; 9. Sealing component; 10. Connecting block; 11. Return spring; 12. Braking groove; 13. Braking hole; 14. Heat sink; 15. Second heat dissipation hole; 16. Second heat dissipation groove; 17. PCBA main board body; 18. Sealing plate; 19. Braking notch; 20. Braking frame; 21. Connecting cavity; 22. Sliding block; 23. Connecting spring; 24. Braking lever. Detailed Implementation

[0020] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0021] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0022] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation", "connection" and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood through the specific circumstances.

[0023] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0024] Example 1: See Figures 1-6In this embodiment of the utility model, a multi-layer PCBA board structure includes a mounting plate 1, a heat sink 14, a PCBA main board body 17, a sealing plate 18, and a pair of brake brackets 20. The mounting plate 1 has a mounting groove 3 at the top center. Elastic clamping components are symmetrically arranged on the inner walls of the left and right ends of the mounting groove 3. The setting of the elastic clamping components can facilitate the clamping treatment inside the mounting groove 3, thereby facilitating the use of the multi-layer PCBA board structure.

[0025] The mounting groove 3 has a plurality of first heat dissipation holes 7 evenly spaced at its bottom, and a first heat dissipation groove 8 is provided at the bottom of each first heat dissipation hole 7. A sealing member 9 is slidably disposed on the first heat dissipation holes 7 and the first heat dissipation groove 8, and both ends of the sealing member 9 are connected to the first heat dissipation groove 8 by elastic connecting components. The elastic connecting components facilitate sealing and opening between the sealing member 9 and the first heat dissipation holes 7 and the first heat dissipation groove 8, thereby facilitating heat dissipation of the multilayer PCBA board structure.

[0026] Braking grooves 12 are provided at the top left and right ends of the mounting plate 1. The braking grooves 12 facilitate quick connection between devices. A heat dissipation plate 14 is provided at the top of the sealing member 9 for heat dissipation of the device. A PCBA main body 17 is provided at the top of the heat dissipation plate 14. A sealing plate 18 is provided at the top of the PCBA main body 17. Braking recesses 19 are provided at the center of the top left and right ends of the sealing plate 18. The braking grooves 12 and braking recesses 19 are connected to each other by a braking bracket 20. The bottom of the braking bracket 20 is provided with a connecting component for connecting with the braking grooves 12. Through the connecting component, the sealing plate 18 can store the PCBA main body 17 and the heat dissipation plate 14 inside the mounting groove 3 for storage.

[0027] The elastic clamping assembly includes a clamping groove 4 formed on the inner wall of the mounting groove 3. An elastic clamping plate 6 is provided inside the clamping groove 4, and the bottom of the elastic clamping plate 6 is connected to the clamping groove 4 through a clamping spring 5. By sequentially installing the heat sink 14, the PCBA motherboard body 17 and the sealing plate 18 into the mounting groove 3 for clamping, the installation of multi-layer PCBA board structures can be facilitated.

[0028] The sealing component 9 has a structure with a thin rod at the top and a thick rod at the bottom. The thin rod is located inside the first heat dissipation hole 7, and the thick rod is located inside the first heat dissipation groove 8. The thick rod at the bottom of the sealing component 9 seals the connection between the first heat dissipation hole 7 and the first heat dissipation groove 8, thereby enabling ventilation and heat dissipation for the installed multilayer PCBA board structure.

[0029] The elastic connection assembly includes a reset spring 11 connected to both ends of the first heat dissipation groove 8. The bottom of the reset spring 11 is connected to the sealing member 9 through the connecting block 10. When the heat dissipation plate 14 moves downward, it presses the sealing member 9 to move downward, and the first heat dissipation hole 7 and the first heat dissipation groove 8 are connected. This facilitates ventilation and heat dissipation of the installed multilayer PCBA board structure.

[0030] Braking holes 13 are provided at both ends inside the braking groove 12. The braking holes 13 facilitate braking of the brake bracket 20 inserted into the braking groove 12.

[0031] The heat sink 14 has several second heat dissipation holes 15 evenly spaced on it. The heat sink 14 has second heat dissipation grooves 16 at both ends located between the second heat dissipation holes 15. The second heat dissipation holes 15 on the heat sink 14 can facilitate the ventilation and heat dissipation of the heat sink 14. The second heat dissipation grooves 16 can provide a certain gap between the heat sink 14 and the mounting groove 3 and between the PCBA motherboard body 17, thereby facilitating better heat dissipation of the equipment.

[0032] The connecting assembly includes a connecting cavity 21 formed inside the brake frame 20. Sliding blocks 22 are provided at both ends of the connecting cavity 21, and the sliding blocks 22 are interconnected by a connecting spring 23. A brake rod 24 is provided at the outer end of each sliding block 22, and the brake rod 24 is located on the outside of the brake frame 20. By inserting the brake frame 20 into the brake groove 12, the brake rod 24 is squeezed into the connecting cavity 21 by the brake groove 12. The brake rod 24 compresses the connecting spring 23 through the sliding block 22, generating elastic force. When the brake rod 24 moves into the brake hole 13, the elastic force drives the brake rod 24 into the brake hole 13 through the sliding block 22, thereby fixing the brake frame 20.

[0033] Example 2: In another embodiment of this utility model, the difference between this embodiment and the above embodiment is that the mounting plate 1 is provided with threaded mounting holes 2 at its four corners. The threaded mounting holes 2 facilitate the fixed installation of multilayer PCBA board structures.

[0034] The working principle of this utility model is as follows: The heat sink 14 is inserted into the mounting groove 3. The PCBA motherboard body 17 is placed on top of the heat sink 14. The sealing plate 18 is placed on top of the PCBA motherboard body 17. The bottom of the sliding blocks 22 at both ends is inserted into the braking groove 12. The braking rod 24 at the bottom of the sliding block 22 is pressed into the connecting cavity 21 by the braking groove 12. The braking rod 24 pushes the sliding block 22 inward, pressing the connecting spring 23. The connecting spring 23 is compressed, generating elastic force. The top of the sliding block 22 presses the sealing plate 18 downward, causing it to move downward. The sealing plate 18 pushes the PCBA motherboard body 17 and the heat sink 14 downward into the mounting groove 3. The elastic clamping assembly achieves the clamping of the PCB... The main board body 17 and the heat sink 14 are clamped together on the side. When the brake lever 24 moves to the brake hole 13, the spring force pushes the brake lever 24 into the brake hole 13, thereby enabling the rapid installation of multiple PCBA board structures. The heat sink 14 moves downward to squeeze the sealing part 9 to move. The sealing part 9 moves downward to open the first heat dissipation hole 7 and the first heat dissipation groove 8. In this way, the heat generated by the PCBA main board body 17 during operation is discharged through the second heat dissipation hole 15 and the second heat dissipation groove 16 on the heat sink 14, and then through the first heat dissipation hole 7 and the first heat dissipation groove 8. This facilitates the heat dissipation of the PCBA main board body 17 during operation, thus facilitating the installation of multi-layer PCBA board structures.

[0035] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A multilayer PCBA board structure, characterized in that: It includes a mounting plate (1), a heat sink (14), a PCBA main board body (17), a sealing plate (18) and a pair of brake brackets (20). The mounting plate (1) has a mounting groove (3) at the top center, and elastic clamping components are symmetrically arranged on the inner walls of the left and right ends of the mounting groove (3). The mounting groove (3) has a plurality of first heat dissipation holes (7) at equal intervals at the bottom. The first heat dissipation holes (7) have a first heat dissipation groove (8) at the bottom. Sealing parts (9) are slidably provided on the first heat dissipation holes (7) and the first heat dissipation groove (8). The two ends of the sealing parts (9) are connected to the first heat dissipation groove (8) through elastic connecting components. Braking grooves (12) are provided at the top left and right ends of the mounting plate (1), a heat sink (14) is provided at the top of the sealing component (9), a PCBA main board body (17) is provided at the top of the heat sink (14), and a sealing plate (18) is provided at the top of the PCBA main board body (17). The sealing plate (18) has a brake recess (19) at the center of the left and right ends of the top. The brake groove (12) and the brake recess (19) are connected to each other through the brake frame (20). The bottom of the brake frame (20) is provided with a connecting component to achieve connection with the brake groove (12).

2. The multilayer PCBA board structure according to claim 1, characterized in that, The elastic clamping assembly includes a clamping groove (4) formed on the inner wall of the mounting groove (3), an elastic clamping plate (6) is provided inside the clamping groove (4), and the bottom of the elastic clamping plate (6) is connected to the clamping groove (4) by a clamping spring (5).

3. The multilayer PCBA board structure according to claim 1, characterized in that, The elastic connection assembly includes a reset spring (11) connected to both ends of the first heat dissipation groove (8), and the bottom of the reset spring (11) is connected to the sealing member (9) through the connecting block (10).

4. The multilayer PCBA board structure according to claim 1, characterized in that, Braking holes (13) are provided at both ends inside the braking groove (12).

5. A multilayer PCBA board structure according to claim 1, characterized in that, The heat sink (14) has several second heat dissipation holes (15) at equal intervals, and the heat sink (14) located between the second heat dissipation holes (15) has second heat dissipation grooves (16) at both ends.

6. A multilayer PCBA board structure according to claim 1, characterized in that, The connecting assembly includes a connecting cavity (21) opened inside the brake frame (20). Sliding blocks (22) are provided at both ends of the connecting cavity (21). The sliding blocks (22) are connected to each other by connecting springs (23). A brake rod (24) is provided at the outer end of the sliding block (22). The brake rod (24) is located on the outside of the brake frame (20).

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