An easily removable PCB shielding cover

Abstract

The utility model relates to the technical field of PCB motherboards, and discloses an easily detachable PCB board shielding cover, comprising a PCB motherboard, a frame welded on the top of the PCB motherboard, a rotating shaft fixedly connected to the top of the frame, a movable block movably connected to the outer wall of the rotating shaft, a magnet fixedly connected to the inner wall of the movable block, an iron sheet fixedly connected to the top of the frame, a clamping strip fixedly connected to the inner side wall of the frame, a cover shell movably connected to the inner wall of the frame, a clamping slot opened on one side of the cover shell, and a convex plate fixedly connected to one side of the cover shell. The easily detachable PCB board shielding cover is convenient for the operator to quickly move the cover shell upward and take it out for disassembly after rotating the limit frame to separate from the frame when disassembling the cover shell, and is convenient for repairing the circuit structure on the PCB motherboard, and is convenient for quick reset after installation, and has a simple structure and convenient operation, meeting the needs of use.

Description

Technical Field

[0001] The utility model relates to the technical field of PCB mainboards, in particular to an easily detachable PCB shielding cover. Background Art

[0002] PCB motherboard is also called printed circuit board, or PCB for short. It is one of the important components of the electronics industry. Almost every electronic device, from electronic watches and calculators to computers, communication electronic equipment, and military weapon systems, as long as there are electronic components such as integrated circuits, in order to make the electrical interconnection between the various components, a printed circuit board must be used. In order to avoid the radiation generated by the electronic circuits on the PCB motherboard during operation, and to shield the interference between electronic components, a shielding cover is often installed on the PCB motherboard during the production process.

[0003] Existing PCB shielding covers are installed with a frame welded on the PCB main board by snap-fitting, which makes it difficult to bear force during disassembly and assembly, making the snap-fitting position difficult to separate, resulting in more effort during disassembly and assembly, thereby reducing the convenience of disassembly and assembly. Utility Model Content

[0004] 1. Technical issues to be solved

[0005] In view of the deficiencies in the prior art, the utility model provides an easily detachable PCB board shielding cover, which has the advantages of easy disassembly and assembly, and solves the problems in the above-mentioned background technology.

[0006] (II) Technical solution

[0007] In order to achieve the above-mentioned purpose of easy disassembly and assembly, the utility model provides the following technical solutions: an easily disassembled PCB board shielding cover, comprising a PCB mainboard, a frame welded on the top of the PCB mainboard, a rotating shaft fixedly connected to the top of the frame, a movable block movably connected to the outer wall of the rotating shaft, a magnet fixedly connected to the inner wall of the movable block, and an iron sheet fixedly connected to the top of the frame.

[0008] The inner wall of the frame is fixedly connected with a clamping strip, the inner wall of the frame is movably connected with a cover shell, one side of the cover shell is provided with a clamping slot, and one side of the cover shell is fixedly connected with a convex plate, so that the operator can quickly move the cover shell upward and take it out for disassembly after rotating the limit frame to separate it from the frame when disassembling the cover shell, which is convenient for the operator to repair the circuit structure on the PCB mainboard and quickly reset after installation. The structure is simple and the operation is convenient, which meets the use requirements.

[0009] Preferably, a movable groove is provided on one side of the frame, a groove is provided on the inner wall of the movable groove, the inner wall of the groove is movably connected to a limit frame, a positioning column is movably connected inside the limit frame, and a fastening sleeve is fixedly connected to the outer wall of the positioning column. Before the cover shell and the frame are installed, installation adjustments can be made according to the height of the circuit structure installed on the PCB mainboard, thereby meeting the use requirements of different heights and avoiding the need to match the circuit structure on the PCB mainboard when installing the shielding cover.

[0010] Preferably, one end of the positioning column is fixedly connected to one side of the cover shell, and the other end of the positioning column extends to one side of the frame through a movable groove, so that the installation position of the cover shell and the frame can be adjusted, so that it can be suitable for circuit structures of different heights, thereby improving the functionality of use.

[0011] Preferably, the cover shell is movably connected to the frame via a slot, and the inner wall of the slot is movably connected to the outer wall of the card strip, which can provide position limiting guidance when the cover shell and the frame are installed, thereby preventing the cover shell from being installed unstable.

[0012] Preferably, the outer wall of the limit frame is movably connected to the inner wall of the movable groove and the inner wall of the groove respectively, and the diameter of the movable groove and the diameter of the groove are both larger than the diameter of the limit frame, which is convenient for adjusting the movable limit frame to move, thereby facilitating disassembly, assembly and adjustment.

[0013] Preferably, the movable block is movably connected to the frame via a rotating shaft, and the diameter of the movable block is larger than the diameter of the movable groove, so that the movable groove can be closed, thereby preventing the cover shell from separating from the frame.

[0014] Preferably, the limit frame is movably connected to the positioning column via a fastening sleeve, and the fastening sleeve is a rubber fastening sleeve, which can improve the tightness between the limit frame and the positioning column and prevent the limit frame from moving outside the positioning column.

[0015] (III) Beneficial effects

[0016] Compared with the prior art, the utility model provides an easily detachable PCB shielding cover, which has the following beneficial effects:

[0017] 1. The easily removable PCB shielding cover is convenient for an operator to quickly move the cover upward and take it out for disassembly by rotating the limit frame to separate it from the frame when disassembling the cover, so as to facilitate maintenance of the circuit structure on the PCB main board and quick reset after installation. The structure is simple and the operation is convenient, which meets the use requirements.

[0018] 2. The easily removable PCB shielding cover can be adjusted according to the height of the circuit structure installed on the PCB main board before the cover and the frame are installed through movable slots, grooves, limit frames and positioning columns, so as to meet the use requirements of different heights and avoid the need to match the circuit structure on the PCB main board when installing the shielding cover. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the front section structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the front view structure of the utility model;

[0021] Figure 3 For this utility model Figure 2 Enlarged view of point A in the middle;

[0022] Figure 4 This is a schematic diagram of the framework structure of the utility model;

[0023] Figure 5 This is a schematic diagram of the cover structure of the utility model.

[0024] In the figure: 1. PCB main board; 2. frame; 3. movable slot; 4. groove; 5. rotating shaft; 6. movable block; 7. magnet; 8. iron sheet; 9. clamping strip; 10. limit frame; 11. positioning column; 12. cover; 13. clamping slot; 14. convex plate; 15. fastening sleeve. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] Example 1

[0027] The preferred embodiment of the easily detachable PCB shielding cover provided by the utility model is as follows: Figures 1 to 5 As shown: an easily detachable PCB board shielding cover, including a PCB main board 1, a frame 2 is welded on the top of the PCB main board 1, a rotating shaft 5 is fixedly connected to the top of the frame 2, a movable block 6 is movably connected to the outer wall of the rotating shaft 5, a magnet 7 is fixedly connected to the inner wall of the movable block 6, and an iron sheet 8 is fixedly connected to the top of the frame 2.

[0028] A clamping strip 9 is fixedly connected to the inner wall of the frame 2, and a cover shell 12 is movably connected to the inner wall of the frame 2. A clamping slot 13 is provided on one side of the cover shell 12, and a convex plate 14 is fixedly connected to one side of the cover shell 12. This facilitates the operator to quickly move the cover shell 12 upward and take it out for disassembly after rotating the limit frame 10 to separate it from the frame 2 when disassembling the cover shell 12, so as to facilitate the maintenance of the circuit structure on the PCB mainboard 1 and facilitate quick reset after installation. The structure is simple and the operation is convenient, which meets the requirements of use.

[0029] In this embodiment, a movable groove 3 is provided on one side of the frame 2, and a groove 4 is provided on the inner wall of the movable groove 3. The inner wall of the groove 4 is movably connected to a limit frame 10, and a positioning column 11 is movably connected inside the limit frame 10. A fastening sleeve 15 is fixedly connected to the outer wall of the positioning column 11. Before the cover shell 12 is installed with the frame 2, installation adjustments can be made according to the height of the circuit structure installed on the PCB mainboard 1, thereby meeting the use requirements of different heights and avoiding the need to match the circuit structure on the PCB mainboard 1 when installing the shielding cover.

[0030] Example 2

[0031] On the basis of Example 1, a preferred embodiment of the easily detachable PCB shielding cover provided by the present invention is as follows: Figures 1 to 5 As shown: one end of the positioning column 11 is fixedly connected to one side of the cover shell 12, and the other end of the positioning column 11 extends to one side of the frame 2 through the movable groove 3, so that the installation position of the cover shell 12 and the frame 2 can be adjusted, so that it can be suitable for circuit structures of different heights, thereby improving the functionality of use.

[0032] In this embodiment, the cover shell 12 is movably connected to the frame 2 via the slot 13, and the inner wall of the slot 13 is movably connected to the outer wall of the clip 9, which can provide limiting guidance when the cover shell 12 and the frame 2 are installed, thereby preventing the cover shell 12 from being installed unstable.

[0033] Furthermore, the outer wall of the limit frame 10 is movably connected to the inner wall of the movable groove 3 and the inner wall of the groove 4, respectively, and the diameter of the movable groove 3 and the diameter of the groove 4 are both larger than the diameter of the limit frame 10, which is convenient for adjusting the movable limit frame 10 to move, thereby facilitating disassembly, assembly and adjustment.

[0034] Furthermore, the movable block 6 is movably connected to the frame 2 via the rotating shaft 5 , and the diameter of the movable block 6 is larger than the diameter of the movable groove 3 , so that the movable groove 3 can be closed, thereby preventing the cover 12 from being separated from the frame 2 .

[0035] In addition, the limit frame 10 is movably connected to the positioning column 11 through the fastening sleeve 15, and the fastening sleeve 15 is a rubber fastening sleeve, which can improve the tightness between the limit frame 10 and the positioning column 11 and prevent the limit frame 10 from moving outside the positioning column 11.

[0036] When in use, the movable block 6 is rotated to one side by the cooperation of the rotating shaft 5, so that the magnet 7 installed in the movable block 6 is disengaged from the iron sheet 8 on the frame 2, and then the limit frame 10 is moved outward on the positioning column 11 and disengaged from the movable groove 3 and the groove 4, and the cover shell 12 is lifted up by holding the convex plate 14 to separate it from the frame 2, thereby facilitating the maintenance of the PCB motherboard 1. At the same time, when installing, the cover shell 12 is first installed in the frame 2, and the card strip 9 is inserted into the card groove 13 for positioning, and then the installation height of the cover shell 12 is adjusted according to the height of the circuit structure installed on the PCB motherboard 1, so that the limit frame 10 set on one side is aligned with the appropriate groove 4, and then the limit frame 10 is moved outside the positioning column 11 to the groove 4 and the movable groove 3 for positioning support, and the movable block 6 is reset through the magnetic connection between the magnet 7 and the iron sheet 8 to close the movable groove 3, thereby quickly completing the disassembly and assembly of the cover shell 12.

[0037] To sum up, the easily removable PCB shielding cover allows the operator to quickly disassemble the cover 12, which is convenient for repairing the circuit structure on the PCB main board 1. It is also convenient for quick resetting after installation. It has a simple structure and is easy to operate. At the same time, the installation adjustment can be made according to the height of the circuit structure installed on the PCB main board 1, avoiding the need to match the circuit structure on the PCB main board 1 when installing the shielding cover.

[0038] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0039] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An easily detachable PCB shielding cover, comprising a PCB main board (1), characterized in that: A frame (2) is welded to the top of the PCB mainboard (1); a rotating shaft (5) is fixedly connected to the top of the frame (2); a movable block (6) is movably connected to the outer wall of the rotating shaft (5); a magnet (7) is fixedly connected to the inner wall of the movable block (6); and an iron sheet (8) is fixedly connected to the top of the frame (2); The inner wall of the frame (2) is fixedly connected to a clamping strip (9), the inner wall of the frame (2) is movably connected to a cover shell (12), one side of the cover shell (12) is provided with a clamping slot (13), and one side of the cover shell (12) is fixedly connected to a convex plate (14).

2. The easily detachable PCB shielding cover according to claim 1, characterized in that: A movable groove (3) is provided on one side of the frame (2), a groove (4) is provided on the inner wall of the movable groove (3), the inner wall of the groove (4) is movably connected to a limit frame (10), a positioning column (11) is movably connected inside the limit frame (10), and a fastening sleeve (15) is fixedly connected to the outer wall of the positioning column (11).

3. The easily detachable PCB shielding cover according to claim 2, characterized in that: One end of the positioning column (11) is fixedly connected to one side of the cover shell (12), and the other end of the positioning column (11) extends to one side of the frame (2) through the movable groove (3).

4. The easily detachable PCB shielding cover according to claim 1, characterized in that: The cover shell (12) is movably connected to the frame (2) via a clamping slot (13), and the inner wall of the clamping slot (13) is movably connected to the outer wall of the clamping strip (9).

5. The easily detachable PCB shielding cover according to claim 2, characterized in that: The outer wall of the limiting frame (10) is movably connected to the inner wall of the movable groove (3) and the inner wall of the concave groove (4), respectively, and the diameter of the movable groove (3) and the diameter of the concave groove (4) are both larger than the diameter of the limiting frame (10).

6. The easily detachable PCB shielding cover according to claim 1, characterized in that: The movable block (6) is movably connected to the frame (2) via a rotating shaft (5), and the diameter of the movable block (6) is greater than the diameter of the movable groove (3).

7. The easily detachable PCB shielding cover according to claim 2, characterized in that: The limiting frame (10) is movably connected to the positioning column (11) via a fastening sleeve (15), and the fastening sleeve (15) is a rubber fastening sleeve.

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