Circuit board with electromagnetic shielding structure

Abstract

The utility model relates to the technical field of circuit boards, and discloses a circuit board with an electromagnetic shielding structure, which comprises a circuit board main body, the bottom end of the circuit board main body is fixedly connected with a frame, and the bottom end of the circuit board main body is provided with a heat conduction silica gel pad. According to the circuit board with the electromagnetic shielding structure, the metal shielding plate and the mounting bolts are arranged, and the metal shielding cover is mounted at the top end of the circuit board main body through the fixing grooves and the mounting bolts, so that the metal shielding cover can be mounted outside the electronic element, and the metal shielding plate is arranged at the top end of the electronic element; the metal shielding cover and the metal shielding plate can provide an electromagnetic shielding effect for the electronic component to prevent electromagnetism from influencing the work of the circuit board main body and the electronic component at the top end of the circuit board main body, the pull block can conveniently take the metal shielding plate out of the top end in the metal shielding cover, and the problem that electromagnetic shielding is inconvenient for the component is solved. And the work of the circuit board is easily influenced.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit boards, in particular to a circuit board with an electromagnetic shielding structure. Background Art

[0002] With the rapid development of the electronics industry, the manufacturing technology of circuit boards, which are the basic components of electronic products, has become increasingly important. Circuit boards can control the operation of multiple components when working. There are many types of circuit boards, and users can choose the appropriate circuit board according to their needs.

[0003] There are still some problems with common circuit boards. For example, during operation, components may generate some magnetic field interference, which makes it inconvenient to perform electromagnetic shielding on the components and easily affects the operation of the circuit board.

[0004] Therefore, we propose a circuit board with an electromagnetic shielding structure to improve the above problems. Utility Model Content

[0005] The purpose of the present invention is to provide a circuit board with an electromagnetic shielding structure to solve the problem in the above background technology that it is inconvenient to perform electromagnetic shielding on components, which easily affects the operation of the circuit board.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solution: a circuit board with an electromagnetic shielding structure, comprising a circuit board body, a frame fixedly connected to the bottom end of the circuit board body, a thermally conductive silicone pad disposed at the bottom end of the circuit board body, and an electromagnetic shielding structure disposed at the top end of the circuit board body;

[0007] The electromagnetic shielding structure includes a metal shielding cover and a metal shielding plate. The metal shielding cover is provided at the top of the circuit board body, and the electronic components are installed at the top of the circuit board body. The metal shielding plate is provided at the top inside the metal shielding cover. Pull blocks are fixedly connected to both sides of the top of the metal shielding plate, and mounting blocks are fixedly connected to the bottom ends of both sides of the metal shielding cover. Fixing grooves are provided at the four corners of the mounting block and the inside of the circuit board body, and mounting bolts are provided inside the fixing grooves.

[0008] Preferably, the mounting blocks are arranged on both sides of the top of the circuit board body, and the mounting blocks are fixed to both sides of the top of the circuit board body through fixing grooves and mounting bolts.

[0009] Preferably, mounting brackets are fixedly connected to both sides of the bottom end of the circuit board body, and a fixing hole is provided at the bottom end inside the mounting bracket.

[0010] Preferably, the top ends of both sides of the metal shielding cover are fixedly connected with support blocks, limiting grooves are provided at both ends of the support block, limiting rods are fixedly connected at the four corners of the bottom end of the metal shielding plate, the top ends of both sides of the metal shielding cover are fixedly connected with support plates, the top ends of the support plates are fixedly connected with hinge blocks, and the external movable hinge of the hinge block is connected to the limiting plate.

[0011] Preferably, the limiting clamping rod is embedded in the limiting groove, and the limiting plates are arranged on both sides of the top end of the metal shielding plate.

[0012] Preferably, a servo motor is installed at the bottom end of the left side of the frame, the output end of the servo motor is fixedly connected to a threaded rod, a threaded sleeve is provided on the outside of the threaded rod, the top of the threaded sleeve is fixedly connected to a fixing frame, the two sides of the inside of the fixing frame are fixedly connected to a mounting plate, a fan is installed on the top of the mounting plate, the two sides of the fixing frame are fixedly connected to a limiting slider, and limiting grooves are provided at the top of the two ends of the inside of the frame.

[0013] Preferably, the limiting slider is arranged inside the limiting sliding groove, and the limiting slider slides left and right inside the limiting sliding groove.

[0014] Preferably, the threaded rod is movably connected to the interior of the frame, and the threaded sleeve and the threaded rod cooperate with each other.

[0015] Compared with the prior art, the beneficial effects of the present invention are: the circuit board with the electromagnetic shielding structure not only improves the electromagnetic shielding performance and facilitates the maintenance of electronic components, but also improves the cooling efficiency of the circuit board;

[0016] (1) By providing a mounting block, a metal shielding cover, a metal shielding plate, a fixing groove and a mounting bolt, the metal shielding cover is mounted on the top of the circuit board body through the fixing groove and the mounting bolt, so that the metal shielding cover can be mounted on the outside of the electronic component, and the metal shielding plate is arranged on the top of the electronic component. The metal shielding cover and the metal shielding plate can provide an electromagnetic shielding effect for the electronic component, preventing electromagnetic interference with the circuit board body and the electronic components on the top of the circuit board body. The pull block can easily take the metal shielding plate out of the top of the metal shielding cover;

[0017] (2) By providing a support block, a limit plate, a limit groove, a hinge block, a support plate and a limit rod, the metal shielding plate is placed on the top of the inside of the metal shielding cover, and the limit rod is aligned with the limit groove during placement, so that the metal shielding plate can be limited. After placement, the limit plate is rotated so that the limit plate is rotated to both sides of the top of the metal shielding plate to prevent the metal shielding plate from accidentally falling off from the inside of the metal shielding cover;

[0018] (3) By arranging a threaded rod, a threaded sleeve, a fixing frame, a limiting slide, a servo motor, a limiting slider and a fan, and starting the servo motor and the fan at the same time, the fan can blow air to the bottom end of the circuit board body to cool the circuit board body, thereby preventing the temperature of the circuit board body from being too high, causing damage to the electronic components and affecting the service life of the electronic components. During the blowing, the servo motor will drive the threaded rod to rotate, and the rotation of the threaded rod can drive the fan to move left and right through the threaded sleeve and the fixing frame. The left and right movement of the fan can improve the cooling efficiency. The limiting slide can limit the fixing frame and the threaded sleeve through the limiting slider. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the front cross-sectional structure of the present utility model;

[0020] Figure 2 This is a schematic diagram of the top view of the circuit board main body of the present invention;

[0021] Figure 3 This is an enlarged front cross-sectional structural diagram of the fixing frame of the present invention;

[0022] Figure 4 For the utility model Figure 1 Schematic diagram of the enlarged cross-section structure at point A in the middle.

[0023] In the figure: 1. Circuit board body; 2. Frame; 3. Threaded rod; 4. Threaded sleeve; 5. Fixing frame; 6. Limiting slide; 7. Thermal conductive silicone pad; 8. Servo motor; 9. Mounting frame; 10. Mounting block; 11. Metal shielding cover; 12. Metal shielding plate; 13. Pull block; 14. Support block; 15. Fixing slot; 16. Fixing hole; 17. Electronic component; 18. Limiting plate; 19. Limiting slot; 20. Hinge block; 21. Support plate; 22. Limiting slide; 23. Fan; 24. Mounting plate; 25. Mounting bolt; 26. Limiting rod. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] Example 1: Please refer to Figure 1-4 A circuit board with an electromagnetic shielding structure includes a circuit board body 1, a frame 2 is fixedly connected to the bottom end of the circuit board body 1, a thermal conductive silicone pad 7 is provided at the bottom end of the circuit board body 1, and an electromagnetic shielding structure is provided at the top end of the circuit board body 1;

[0026] The electromagnetic shielding structure includes a metal shielding cover 11 and a metal shielding plate 12. The metal shielding cover 11 is provided at the top of the circuit board body 1, and an electronic component 17 is installed at the top of the circuit board body 1. The metal shielding plate 12 is provided at the top of the metal shielding cover 11. Pull blocks 13 are fixedly connected to both sides of the top of the metal shielding plate 12. The bottom ends of both sides of the metal shielding cover 11 are fixedly connected to mounting blocks 10. Fixing slots 15 are provided at the four corners of the mounting block 10 and the inside of the circuit board body 1. Mounting bolts 25 are provided inside the fixing slots 15.

[0027] Mounting blocks 10 are provided on both sides of the top of the circuit board body 1. The mounting blocks 10 are fixed to both sides of the top of the circuit board body 1 through fixing slots 15 and mounting bolts 25. Mounting brackets 9 are fixedly connected to both sides of the bottom of the circuit board body 1. The bottom end of the mounting bracket 9 is provided with fixing holes 16.

[0028] Specifically, if Figure 1 、 Figure 3 and Figure 4 As shown, the metal shielding cover 11 is installed on the top of the circuit board body 1 through the fixing groove 15 and the mounting bolts 25, so that the metal shielding cover 11 can be installed on the outside of the electronic component 17, and the metal shielding plate 12 is set on the top of the electronic component 17. The metal shielding cover 11 and the metal shielding plate 12 can provide electromagnetic shielding effect for the electronic component 17, preventing electromagnetic influence on the circuit board body 1 and the electronic component 17 on the top of the circuit board body 1. The pull block 13 can easily take the metal shielding plate 12 out of the top of the metal shielding cover 11.

[0029] Example 2: The top ends of both sides of the metal shield 11 are fixedly connected to support blocks 14, and limit slots 19 are defined at both ends of the support block 14. The four corners of the bottom end of the metal shield 12 are fixedly connected to limit rods 26. The top ends of both sides of the metal shield 11 are fixedly connected to support plates 21, and the top ends of the support plates 21 are fixedly connected to hinge blocks 20. The hinge blocks 20 are externally hinged to limit plates 18. The limit rods 26 are embedded in the limit slots 19, and the limit plates 18 are provided on both sides of the top end of the metal shield 12.

[0030] Specifically, if Figure 1 、 Figure 3 and Figure 4 As shown, place the metal shielding plate 12 on the top of the metal shielding cover 11, and align the limiting rod 26 with the limiting groove 19 when placing it, so that the metal shielding plate 12 can be limited. After placement, rotate the limiting plate 18 so that the limiting plate 18 rotates to both sides of the top of the metal shielding plate 12 to prevent the metal shielding plate 12 from accidentally falling off from the inside of the metal shielding cover 11.

[0031] Embodiment 3: A servo motor 8 is installed at the bottom end of the left side of the frame 2, and the output end of the servo motor 8 is fixedly connected to a threaded rod 3, a threaded sleeve 4 is provided on the outside of the threaded rod 3, and a fixing frame 5 is fixedly connected to the top of the threaded sleeve 4. The two sides of the interior of the fixing frame 5 are fixedly connected with a mounting plate 24, and a fan 23 is installed on the top of the mounting plate 24. The two sides of the fixing frame 5 are fixedly connected to the limiting slider 22, and the top of the two ends of the interior of the frame 2 is provided with a limiting slide 6. The limiting slider 22 is provided inside the limiting slide 6, and the limiting slider 22 slides left and right inside the limiting slide 6. The threaded rod 3 is movably connected to the interior of the frame 2, and the threaded sleeve 4 and the threaded rod 3 cooperate with each other.

[0032] Specifically, if Figure 1 and Figure 3 As shown, the servo motor 8 and the fan 23 are started at the same time. The fan 23 can blow air to the bottom end of the circuit board body 1 to cool the circuit board body 1, thereby preventing the temperature of the circuit board body 1 from being too high, causing damage to the electronic components 17 and affecting the service life of the electronic components 17. When blowing air, the servo motor 8 will drive the threaded rod 3 to rotate. The rotation of the threaded rod 3 can drive the fan 23 to move left and right through the threaded sleeve 4 and the fixing frame 5. The left and right movement of the fan 23 can improve the cooling efficiency. The limiting slide groove 6 can limit the fixing frame 5 and the threaded sleeve 4 through the limiting slider 22.

[0033] Working principle: When the utility model is in use, the metal shielding cover 11 is installed on the top of the circuit board body 1 through the fixing groove 15 and the mounting bolt 25, so that the metal shielding cover 11 can be installed on the outside of the electronic component 17, and the metal shielding plate 12 is placed on the top of the inside of the metal shielding cover 11. When placing, the limiting card rod 26 is aligned with the limiting groove 19, so that the metal shielding plate 12 can be limited. After placement, the limiting plate 18 is rotated to rotate the limiting plate 18 to both sides of the top of the metal shielding plate 12 to prevent the metal shielding plate 12 from accidentally falling off from the inside of the metal shielding cover 11. The metal shielding cover 11 and the metal shielding plate 12 can provide the electronic component with a certain degree of protection. 17 provides an electromagnetic shielding effect to prevent electromagnetic interference with the circuit board body 1 and the electronic components 17 at the top of the circuit board body 1. The pull block 13 can easily take the metal shielding plate 12 out of the top of the metal shielding cover 11. When the circuit board body 1 needs to be cooled, the servo motor 8 and the fan 23 are started at the same time. The fan 23 can blow air to the bottom end of the circuit board body 1 to cool the circuit board body 1, preventing the temperature of the circuit board body 1 from being too high, causing damage to the electronic components 17 and affecting the service life of the electronic components 17. When blowing air, the servo motor 8 will drive the threaded rod 3 to rotate, and the rotation of the threaded rod 3 can drive the fan 23 to move left and right through the threaded sleeve 4 and the fixing frame 5.

[0034] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A circuit board with an electromagnetic shielding structure, comprising a circuit board body (1), characterized in that: The bottom end of the circuit board body (1) is fixedly connected to a frame (2), the bottom end of the circuit board body (1) is provided with a thermal conductive silicone pad (7), and the top end of the circuit board body (1) is provided with an electromagnetic shielding structure; The electromagnetic shielding structure comprises a metal shielding cover (11) and a metal shielding plate (12), wherein the top of the circuit board body (1) is provided with the metal shielding cover (11), the top of the circuit board body (1) is installed with an electronic component (17), the top of the metal shielding cover (11) is provided with a metal shielding plate (12), the top of the metal shielding cover (12) is fixedly connected with pull blocks (13) on both sides, the bottom of both sides of the metal shielding cover (11) is fixedly connected with mounting blocks (10), the mounting blocks (10) and the four corners inside the circuit board body (1) are provided with fixing grooves (15), and the fixing grooves (15) are provided with mounting bolts (25) inside.

2. The circuit board with an electromagnetic shielding structure according to claim 1, wherein: The mounting blocks (10) are arranged on both sides of the top of the circuit board body (1), and the mounting blocks (10) are fixed on both sides of the top of the circuit board body (1) through fixing grooves (15) and mounting bolts (25).

3. The circuit board with an electromagnetic shielding structure according to claim 1, wherein: Mounting frames (9) are fixedly connected to both sides of the bottom end of the circuit board body (1), and a fixing hole (16) is provided at the bottom end inside the mounting frame (9).

4. The circuit board with an electromagnetic shielding structure according to claim 1, wherein: The top ends of both sides of the metal shielding cover (11) are fixedly connected to support blocks (14), and limiting grooves (19) are provided at both ends of the support block (14). The four corners of the bottom end of the metal shielding plate (12) are fixedly connected to limiting clamping rods (26). The top ends of both sides of the metal shielding cover (11) are fixedly connected to support plates (21), and the top ends of the support plates (21) are fixedly connected to hinge blocks (20), and the external movable hinge of the hinge block (20) is connected to the limiting plate (18).

5. The circuit board with an electromagnetic shielding structure according to claim 4, characterized in that: The limiting clamping rod (26) is embedded in the limiting groove (19), and the limiting plate (18) is arranged on both sides of the top end of the metal shielding plate (12).

6. The circuit board with an electromagnetic shielding structure according to claim 1, wherein: A servo motor (8) is installed at the bottom end of the left side of the frame (2), the output end of the servo motor (8) is fixedly connected to a threaded rod (3), a threaded sleeve (4) is provided on the outside of the threaded rod (3), the top of the threaded sleeve (4) is fixedly connected to a fixing frame (5), the inside of the fixing frame (5) is fixedly connected to a mounting plate (24), the top of the mounting plate (24) is installed with a fan (23), the two sides of the fixing frame (5) are fixedly connected to a limiting slider (22), and the tops of the two ends of the inside of the frame (2) are provided with limiting slots (6).

7. The circuit board with an electromagnetic shielding structure according to claim 6, characterized in that: The limiting slider (22) is arranged inside the limiting slide groove (6), and the limiting slider (22) slides left and right inside the limiting slide groove (6).

8. The circuit board with an electromagnetic shielding structure according to claim 6, wherein: The threaded rod (3) is movably connected to the interior of the frame (2), and the threaded sleeve (4) and the threaded rod (3) cooperate with each other.

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