Electromagnetic interference shielding structure of integrated circuit substrate

Abstract

The utility model relates to the technical field of shielding structures, in particular to an electromagnetic interference shielding structure of an integrated circuit substrate. In order to solve the problems that electronic elements in a shielding structure are difficult to replace after being damaged, the dismounting process of the shielding structure is possibly complicated and time-consuming, and maintenance and repair are not facilitated, the utility model provides the following technical scheme: the electromagnetic interference shielding structure comprises an integrated circuit substrate and an electromagnetic interference shielding cover for shielding electromagnetic interference of welding elements on the integrated circuit substrate; the mounting mechanism is used for mounting the electromagnetic interference shielding case and is arranged on the side surface of the electromagnetic interference shielding case; and the positioning assembly is matched with the mounting mechanism to position the electromagnetic interference shielding case after the electromagnetic interference shielding case is mounted, and the positioning assembly is arranged in the mounting mechanism. According to the utility model, the electromagnetic interference shielding performance is good, and the design of the switch-type electromagnetic interference shielding cover is adopted, so that the maintenance and repair are more convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of shielding structures, in particular to an electromagnetic interference shielding structure for an integrated circuit substrate. Background Art

[0002] It is very necessary to perform electromagnetic interference shielding on an integrated circuit substrate. Electromagnetic interference shielding can help improve the performance of electronic devices and ensure their reliability. In the existing electromagnetic interference shielding structure, a sputtering process is used to form a shielding structure to suppress the electromagnetic interference of internal circuits. Since it is fixed to the substrate, it is difficult to replace the electronic components inside the shielding structure after they are damaged. The process of disassembling the shielding structure may be complex and time-consuming, which is not conducive to repair. In view of this, the utility model proposes an electromagnetic interference shielding structure for an integrated circuit substrate. Summary of the Utility Model

[0003] The purpose of the utility model is to address the problem that it is difficult to replace the electronic components inside the shielding structure in the background art, and the process of disassembling the shielding structure may be complex and time-consuming, which is not conducive to repair. An electromagnetic interference shielding structure for an integrated circuit substrate is proposed.

[0004] The technical solution of the utility model: An electromagnetic interference shielding structure for an integrated circuit substrate, including an integrated circuit substrate:

[0005] An electromagnetic interference shielding cover for shielding the electromagnetic interference of the welding components on the integrated circuit substrate;

[0006] An installation mechanism for installing the electromagnetic interference shielding cover, and the installation mechanism is arranged on the side surface of the electromagnetic interference shielding cover;

[0007] A positioning component for positioning the electromagnetic interference shielding cover after it is installed in cooperation with the installation mechanism, and the positioning component is arranged in the installation mechanism.

[0008] Optionally, the installation mechanism includes two groups of positioning columns installed on both sides of the electromagnetic interference shielding cover. A positioning frame is arranged outside each group of positioning columns. The positioning frame is in a "冂" shape and is fixedly connected to the integrated circuit substrate. The positioning columns are slidably connected in the positioning frame.

[0009] Optionally, two groups of fixing blocks are further installed on the side of the electromagnetic interference shielding cover away from the positioning frame. A limiting disk is slidably connected in the fixing blocks. One end of the limiting disk is fixedly connected to a connecting rod, and the connecting rod is also slidably connected in the fixing blocks. A limiting rod is further installed at the end of the connecting rod away from the limiting disk.

[0010] Optionally, a first spring is further provided in the fixing block, the first spring is provided on a side of the limiting plate away from the connecting rod, and one end of the first spring is fixedly connected to the limiting plate.

[0011] Optionally, positioning blocks fixedly connected to the top of the integrated circuit substrate are provided on both sides of the electromagnetic interference shielding cover, and the positioning blocks are provided with entry holes corresponding to the limiting rods, and the limiting rods are slidably connected in the positioning blocks.

[0012] Optionally, the positioning assembly includes a limit block slidably connected to the positioning block, the side of the limit block close to the electromagnetic interference shielding cover is inclined, and the side of the limit block away from the electromagnetic interference shielding cover is fixedly connected to a synchronization rod, and the synchronization rod is also slidably connected in the positioning block.

[0013] Optionally, the outer ring of the synchronization rod is sleeved with a second spring, the second spring is arranged in the positioning block, and one end of the second spring is fixedly connected to the limit block.

[0014] Optionally, one end of the synchronization rod passes through the positioning block and is rotatably connected to a rotating plate, and a support plate is installed on a side of the rotating plate close to the electromagnetic interference shielding cover.

[0015] Compared with the prior art, the utility model has the following beneficial technical effects:

[0016] The utility model can make the electromagnetic interference shielding cover fit with the integrated circuit substrate through the setting of the installation mechanism, so as to shield the electromagnetic interference to the electronic components inside the electromagnetic interference shielding cover, and ensure the normal operation of the electronic components;

[0017] Furthermore, by setting the positioning component, the electromagnetic interference shielding cover can be positioned to prevent the electromagnetic interference shielding cover from being accidentally opened during use. At the same time, when it is necessary to repair the internal components, the positioning of the electromagnetic interference shielding cover can be cancelled, so that the electromagnetic interference shielding cover can be opened to repair and replace the components.

[0018] In summary, the utility model has good electromagnetic interference shielding performance, and the design of the switch-type electromagnetic interference shielding cover makes maintenance and repair more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a three-dimensional diagram of an electromagnetic interference shielding structure of an integrated circuit substrate;

[0020] Figure 2 yes Figure 1 Schematic diagram of the local cross-section structure.

[0021] Reference numerals:

[0022] 1. Integrated circuit substrate; 2. Electromagnetic interference shielding cover;

[0023] 3. Installation mechanism; 31. Positioning column; 32. Positioning frame; 33. Fixing block; 34. Limiting plate; 35. Connecting rod; 36. Limiting rod; 37. First spring; 38. Positioning block; 39. Inlet hole;

[0024] 4. Positioning assembly; 41. Limit block; 42. Synchronous rod; 43. Second spring; 44. Rotating plate; 45. Support plate. DETAILED DESCRIPTION

[0025] The technical solution of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present utility model, rather than all of the embodiments.

[0026] The components of the embodiments of the present invention generally described and shown in the drawings herein can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention.

[0027] Based on the embodiments of the present utility model, all other embodiments obtained by ordinary technicians in the field without making any creative work shall fall within the scope of protection of the present utility model.

[0028] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0029] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] like Figure 1 and Figure 2As shown in the figure, an electromagnetic interference shielding structure for an integrated circuit substrate proposed by the present utility model includes an integrated circuit substrate 1, and electronic components are welded on the integrated circuit substrate 1. The shielding structure further includes an electromagnetic interference shielding cover 2 for shielding the electromagnetic interference of the components welded on the integrated circuit substrate 1, and an installation mechanism 3 for installing the electromagnetic interference shielding cover 2, wherein the installation mechanism 3 is arranged on the side of the electromagnetic interference shielding cover 2, and the installation mechanism 3 includes two groups of positioning columns 31 installed on both sides of the electromagnetic interference shielding cover 2.

[0031] Furthermore, a positioning frame 32 is arranged outside each group of positioning columns 31. The positioning frame 32 is arranged in a "冂" shape, and the positioning frame 32 is fixedly connected to the integrated circuit substrate 1, and the positioning columns 31 are slidably connected in the positioning frame 32. The positioning columns 31 and the positioning frame 32 enable the electromagnetic interference shielding cover 2 to be rotatably connected to the top of the integrated circuit substrate 1, and at the same time, the electromagnetic interference shielding cover 2 can move to a certain extent. Two groups of fixing blocks 33 are also installed on the side of the electromagnetic interference shielding cover 2 away from the positioning frame 32. A limiting disk 34 is slidably connected in the fixing blocks 33. One end of the limiting disk 34 is fixedly connected to a connecting rod 35. The limiting disk 34 cannot be separated from the fixing blocks 33, so the moving distance of the connecting rod 35 is fixed. The connecting rod 35 is also slidably connected in the fixing blocks 33, and the connecting rod 35 moves synchronously with the limiting disk 34. A limiting rod 36 is also installed at the end of the connecting rod 35 away from the limiting disk 34. When the limiting rod 36 moves, it drives the limiting disk 34 to move synchronously through the connecting rod 35. A first spring 37 is also arranged in the fixing blocks 33. The first spring 37 is arranged on the side of the limiting disk 34 away from the connecting rod 35, and one end of the first spring 37 is fixedly connected to the limiting disk 34. When the limiting disk 34 moves, it will compress the first spring 37, and the elastic force of the first spring 37 will help the limiting disk 34 to reset. Positioning blocks 38 fixedly connected to the top of the integrated circuit substrate 1 are arranged on both sides of the electromagnetic interference shielding cover 2, and the positions of the positioning blocks 38 are fixed. A through hole 39 corresponding to the limiting rod 36 is opened on the positioning block 38, and the limiting rod 36 is slidably connected in the positioning block 38. The opening of the through hole 39 facilitates the limiting rod 36 to enter the positioning block 38.

[0032] Furthermore, the shielding structure also includes a positioning assembly 4 that cooperates with the installation mechanism 3 to position the electromagnetic interference shielding cover 2 after it is installed, and the positioning assembly 4 is arranged in the installation mechanism 3. The positioning assembly 4 includes a limit block 41 that is slidably connected to the positioning block 38, and the limit block 41 slides smoothly in the positioning block 38 without tilting. The side of the limit block 41 close to the electromagnetic interference shielding cover 2 is tilted, so that the limit rod 36 contacts the limit block 41 when moving, and the limit block 41 slides synchronously with the limit rod 36, so that the subsequent limit block 41 limits the limit rod 36. The side of the limit block 41 away from the electromagnetic interference shielding cover 2 is fixedly connected with a synchronization rod 42, and the synchronization rod 42 is used to drive the limit block 41 to move synchronously. The synchronization rod 42 is also slidably connected in the positioning block 38. The outer ring of the synchronization rod 42 is sleeved with a second spring 43. The second spring 43 is arranged in the positioning block 38, and one end of the second spring 43 is fixedly connected to the limit block 41. The second spring 43 is used to squeeze the second spring 43 after the limit block 41 moves, so that the elastic force released by the second spring 43 can reset the limit block 41. The synchronization rod 42 passes through the positioning block 38 and is rotatably connected to a rotating plate 44 at one end. The rotating plate 44 can rotate with the synchronization rod 42 as the axis. A support plate 45 is installed on the side of the rotating plate 44 close to the electromagnetic interference shielding cover 2. The rotating plate 44 rotates synchronously with the support plate 45, so that after the rotating plate 44 drives the synchronization rod 42 to move, the rotating plate 44 can drive the support plate 45 to rotate, so that the end of the support plate 45 away from the rotating plate 44 contacts the side of the positioning block 38 for support, preventing the limit block 41 from resetting.

[0033] The working principle of this embodiment is that, first, pinch the upper end of the rotating plate 44 with your fingers, pull the rotating plate 44 to move in the direction away from the electromagnetic interference shielding cover 2, and the rotating plate 44 drives the limit block 41 to move away from the electromagnetic interference shielding cover 2 through the synchronization rod 42, and at the same time, the limit block 41 squeezes the second spring 43 when it moves. The support plate 45 moves synchronously with the rotating plate 44. When the end of the support plate 45 away from the rotating plate 44 is flush with the side of the positioning block 38 away from the electromagnetic interference shielding cover 2, the rotating plate 44 is rotated and the support plate 45 is driven to rotate at the same time, so that the end of the support plate 45 away from the rotating plate 44 contacts the side of the positioning block 38 away from the electromagnetic interference shielding cover 2. At this time, the support plate 45 supports the rotating plate 44 to prevent the second spring 43 from releasing its elastic force. At this time, the electromagnetic interference shielding cover 2 can be moved to the side of the positioning frame 32, and the limit rod 36 slides in the positioning block 38, and the positioning column 31 slides in the positioning frame 32. When the limiting rod 36 moves to the position of the inlet hole 39 , the EMI shielding cover 2 can be rotated to make the limiting rod 36 separate from the positioning block 38 , and the components inside the EMI shielding cover 2 can be repaired and replaced.

[0034] After the maintenance is completed, the rotating plate 44 is rotated so that the support plate 45 no longer contacts the side of the positioning block 38. At this time, the second spring 43 releases the elastic force to reset the limit block 41. The electromagnetic interference shielding cover 2 is rotated again so that the limit rod 36 enters the positioning block 38 through the entry hole 39, and the electromagnetic interference shielding cover 2 is moved away from the positioning frame 32. The limit rod 36 contacts the side of the limit block 41 when moving. At this time, the limit rod 36 drives the limit plate 34 to move and squeeze the first spring 37 through the connecting rod 35. The limit block 41 slides in the positioning block 38 and squeezes the second spring 43. After the limit rod 36 leaves the position of the limit block 41, the first spring 37 and the second spring 43 release the elastic force at the same time, so that the limit block 41 limits the limit rod 36. At this time, the electromagnetic interference shielding cover 2 is fixed, and the electromagnetic interference shielding cover 2 plays a role in shielding electromagnetic interference to the internal electronic components.

[0035] The above specific embodiment is only an optional embodiment of the present invention. Based on the technical solution of the present invention and the relevant inspiration of the above embodiment, those skilled in the art can make various alternative improvements and combinations to the above specific embodiment.

Claims

1. An electromagnetic interference shielding structure for an integrated circuit substrate, comprising an integrated circuit substrate (1), characterized in that: An electromagnetic interference shielding cover (2) for shielding electromagnetic interference of the components soldered on the integrated circuit substrate (1); An installation mechanism (3) for installing the electromagnetic interference shielding cover (2), the installation mechanism (3) being arranged on the side surface of the electromagnetic interference shielding cover (2); A positioning component (4) for positioning the electromagnetic interference shielding cover (2) after installation in cooperation with the installation mechanism (3), the positioning component (4) being arranged in the installation mechanism (3).

2. The electromagnetic interference shielding structure of an integrated circuit substrate according to claim 1, characterized in that: The installation mechanism (3) includes two groups of positioning columns (31) installed on both sides of the electromagnetic interference shielding cover (2). A positioning frame (32) is arranged outside each group of positioning columns (31). The positioning frame (32) is in a "冂" shape and is fixedly connected to the integrated circuit substrate (1), and the positioning column (31) is slidably connected in the positioning frame (32).

3. The electromagnetic interference shielding structure of an integrated circuit substrate according to claim 2, characterized in that: Two groups of fixing blocks (33) are further installed on the side of the electromagnetic interference shielding cover (2) away from the positioning frame (32). A limiting disk (34) is slidably connected in the fixing block (33). One end of the limiting disk (34) is fixedly connected to a connecting rod (35), and the connecting rod (35) is also slidably connected in the fixing block (33). A limiting rod (36) is further installed at the end of the connecting rod (35) away from the limiting disk (34).

4. The electromagnetic interference shielding structure of an integrated circuit substrate according to claim 3, characterized in that: A first spring (37) is further arranged in the fixing block (33). The first spring (37) is arranged on the side of the limiting disk (34) away from the connecting rod (35), and one end of the first spring (37) is fixedly connected to the limiting disk (34).

5. The electromagnetic interference shielding structure of an integrated circuit substrate according to claim 3, characterized in that: Positioning blocks (38) fixedly connected to the top of the integrated circuit substrate (1) are arranged on both sides of the electromagnetic interference shielding cover (2). An inlet hole (39) corresponding to the limiting rod (36) is formed in the positioning block (38), and the limiting rod (36) is slidably connected in the positioning block (38).

6. The electromagnetic interference shielding structure of an integrated circuit substrate according to claim 5, characterized in that: The positioning component (4) includes a limiting block (41) slidably connected in the positioning block (38). The side of the limiting block (41) close to the electromagnetic interference shielding cover (2) is inclined. A synchronizing rod (42) is fixedly connected to the side of the limiting block (41) away from the electromagnetic interference shielding cover (2), and the synchronizing rod (42) is also slidably connected in the positioning block (38).

7. The electromagnetic interference shielding structure of an integrated circuit substrate according to claim 6, characterized in that: A second spring (43) is sleeved outside the synchronizing rod (42). The second spring (43) is arranged in the positioning block (38), and one end of the second spring (43) is fixedly connected to the limiting block (41).

8. The electromagnetic interference shielding structure of an integrated circuit substrate according to claim 6, characterized in that: One end of the synchronizing rod (42) passing through the positioning block (38) is rotatably connected to a rotating plate (44), and a support plate (45) is installed on the side of the rotating plate (44) close to the electromagnetic interference shielding cover (2).

Images