Electromagnetic shielding cover

Abstract

The utility model discloses an electromagnetic shielding case, which belongs to the technical field of electromagnetic shielding cases and comprises a shielding case body, an installation assembly is arranged on the shielding case body, the shielding case body comprises a main shielding case and two auxiliary shielding cases, and the two auxiliary shielding cases are installed on the main shielding case in a sliding mode. A connecting mechanism and a limiting mechanism are arranged between the main shielding case and the two auxiliary shielding cases, a plurality of shielding plates are detachably installed in the main shielding case, an operation hole is formed in the upper surface of the main shielding case, a protruding part is arranged on the inner wall of the operation hole, and a maintenance frame is arranged on the upper surface of the protruding part. According to the electromagnetic shielding case, the main shielding case and the auxiliary shielding cases are arranged, the two auxiliary shielding cases slide on the main shielding case, so that the size of the whole device is adjusted, the shielding space can be adjusted according to the use requirements in the use process, various use requirements are met, and the problem that the shielding space of an existing device cannot be adjusted is solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of electromagnetic shielding covers, and in particular relates to an electromagnetic shielding cover. Background Art

[0002] The shielding cover is a tool used to shield electronic signals, shielding the influence of external electromagnetic waves on the internal circuit and the radiation of electromagnetic waves generated inside. This component is mainly used in mobile phones, GPS and other fields to prevent electromagnetic interference and shield components on PCB boards and LCM.

[0003] Patent document CN207284044U discloses an electromagnetic shielding cover, which relates to the technical field of electronic devices. The side wall bottom plate is provided with a welding portion extending outward, and a plurality of protrusions arranged at intervals are provided on the surface of the welding portion. The shielding cover is mounted on the PCB board through the protrusions, so that the solder paste is retained between the two, effectively improving the welding effect, improving the welding yield, saving the amount of solder paste, and reducing the welding cost. However, the existing electromagnetic shielding cover adopts a single fixed-size integrated structure. When facing a variety of shielded electronic components, the size of the electromagnetic shielding cover cannot be adjusted, and the shielding space cannot be adjusted. It is necessary to combine electromagnetic shielding covers of various sizes, which is not convenient to use, and the flexibility and applicability are not strong. Utility Model Content

[0004] The purpose of the present utility model is to provide an electromagnetic shielding cover to solve at least one problem raised in the above background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] An electromagnetic shielding cover comprises a shielding cover body, wherein the shielding cover body comprises a main shielding cover and two auxiliary shielding covers, wherein the two auxiliary shielding covers are slidably mounted on the main shielding cover.

[0007] A plurality of shielding plates are detachably installed in the main shielding cover, an operation hole is provided on the upper surface of the main shielding cover, a protrusion is provided on the inner wall of the operation hole, an inspection frame is provided on the upper surface of the protrusion, a plurality of heat dissipation holes are provided on the lower surface of the inspection frame, and a dust screen is fixedly installed in the inspection frame;

[0008] A plurality of card blocks are fixedly mounted on the inner wall of the main shielding cover, the card blocks are arranged in pairs and the two opposite groups of card blocks are used in coordination with each other, and the shielding plate is slidably mounted on the two opposite groups of card blocks;

[0009] Two bolt rods are relatively slidably installed on the inner wall of the inspection frame, and a plurality of locking holes for the bolt rods are opened on the main shielding cover. A spring is sleeved on the outer surface of the bolt rod, and the two ends of the spring are respectively fixedly connected to the opposite surfaces of the bolt rod and the inspection frame.

[0010] By adopting the above scheme, a main shielding cover and a sub-shielding cover are set, and the two sub-shielding covers slide on the main shielding cover to achieve size adjustment of the overall device. The shielding space can be adjusted according to usage requirements during use to meet various usage requirements. By setting the installation components, the installation function of the entire device is achieved, which is convenient for installation during use. By setting the shielding plate, the shielding space inside the shielding cover body is divided into multiple independent spaces, thereby avoiding mutual interference among multiple electronic components. By setting the heat dissipation holes and the dustproof net, the space inside the device is dissipated during use, and at the same time, it plays a dustproof role under the action of the dustproof net.

[0011] As a preferred embodiment, a mounting assembly is provided on the shielding cover body, and the mounting assembly includes a plurality of mounting plates arranged on the shielding cover body, a plurality of mounting holes are opened on the mounting plates, and the plurality of mounting plates are respectively fixedly mounted on the main shielding cover and the two auxiliary shielding covers.

[0012] By adopting the above solution, by providing a mounting plate and a plurality of mounting holes, the main shielding cover and the auxiliary shielding cover can be quickly installed, thereby improving the convenience of using the shielding cover body.

[0013] As a preferred embodiment, a connecting mechanism is provided between the main shielding cover and the two auxiliary shielding covers, and the connecting mechanism includes a plurality of T-shaped connectors fixedly mounted on the upper surfaces of the auxiliary shielding covers, and a plurality of connecting grooves for use of the T-shaped connectors are opened on the inner wall of the main shielding cover.

[0014] By adopting the above solution, a T-shaped connector and a plurality of connection grooves are provided to achieve the connection between the main shielding cover and the auxiliary shielding cover, thereby ensuring the stability of the overall structure.

[0015] As a preferred embodiment, a limiting mechanism is arranged between the main shielding cover and the two auxiliary shielding covers, the limiting mechanism comprises a plurality of limiting bars fixedly mounted on the inner wall of the main shielding cover, and the auxiliary shielding covers are provided with a plurality of limiting grooves for the limiting bars.

[0016] By adopting the above solution, by providing the limiting strip and the limiting groove, the limiting and guiding functions of the auxiliary shielding cover during adjustment are achieved, thereby ensuring the stability of the auxiliary shielding cover in use.

[0017] In general, the above technical solution conceived by the utility model has the following beneficial effects compared with the prior art:

[0018] (1) The electromagnetic shielding cover of the utility model is provided with a main shielding cover and a sub-shielding cover. The two sub-shielding covers slide on the main shielding cover to adjust the size of the whole device. The shielding space can be adjusted according to the use requirements during use to meet various use requirements, thus solving the problem that the existing device cannot adjust the shielding space.

[0019] (2) The electromagnetic shielding cover of the utility model divides the shielding space inside the shielding cover body into multiple independent spaces by setting a shielding plate, thereby avoiding mutual interference between multiple electronic components. At the same time, the shielding plate is installed and limited by the card block, which is convenient for installation and use of the shielding plate at multiple positions and can adjust the size of a single shielding space;

[0020] (3) The electromagnetic shielding cover of the utility model realizes the installation and limiting function of the shielding plate by setting a card block, which is convenient for the installation and use of the shielding plate at multiple positions and can adjust the size of a single shielding space; by setting a bolt rod, the bolt rod is pulled away from the lock hole to unlock the maintenance frame. At this time, the maintenance frame can be taken out to quickly inspect the inside of the shielding cover body. After loosening the bolt rod, the bolt rod is driven to return to the lock hole under the elastic action of the spring to lock the maintenance frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the structure of the utility model;

[0022] Figure 2 It is a structural schematic diagram of the main shielding cover, shielding plate and mounting plate of the utility model;

[0023] Figure 3 It is a structural schematic diagram of the main shielding cover, shielding plate and mounting plate of the utility model;

[0024] Figure 4 It is a schematic diagram of the structure of the auxiliary shielding cover, the mounting plate and the T-shaped connector of the utility model;

[0025] Figure 5 It is a structural schematic diagram of the maintenance frame and heat dissipation holes of the utility model;

[0026] Figure 6 For this utility model Figure 5 Schematic diagram of the structure at A in the middle.

[0027] In the figure: 1. Shielding cover body; 2. Main shielding cover; 3. Auxiliary shielding cover; 4. Shielding plate; 5. Operation hole; 6. Protrusion; 7. Inspection frame; 8. Heat dissipation hole; 9. Dust screen; 10. Mounting plate; 11. Mounting hole; 12. T-shaped connector; 13. Connecting groove; 14. Limit strip; 15. Limit groove; 16. Block; 17. Bolt rod; 18. Spring. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. In addition, the technical features involved in each embodiment of the utility model described below can be combined with each other as long as they do not conflict with each other.

[0029] See also Figure 1 The utility model provides an electromagnetic shielding cover, which includes a shielding cover body 1, on which a mounting assembly is arranged.

[0030] like Figure 1 As shown, the installation assembly includes a plurality of mounting plates 10 arranged on the shielding cover body 1, and a plurality of mounting holes 11 are opened on the mounting plates 10. The plurality of mounting plates 10 are respectively fixedly mounted on the main shielding cover 2 and the two auxiliary shielding covers 3. By setting the mounting plates 10 and the plurality of mounting holes 11, the main shielding cover 2 and the auxiliary shielding cover 3 can be quickly installed, thereby improving the convenience of using the shielding cover body 1.

[0031] like Figure 1 and 2 As shown, the shielding cover body 1 includes a main shielding cover 2 and two auxiliary shielding covers 3. The two auxiliary shielding covers 3 are slidably mounted on the main shielding cover 2. A connecting mechanism and a limiting mechanism are provided between the main shielding cover 2 and the two auxiliary shielding covers 3.

[0032] The connecting mechanism includes a plurality of T-shaped connectors 12 fixedly mounted on the upper surface of the auxiliary shielding cover 3, and a plurality of connecting grooves 13 for use by the T-shaped connectors 12 are opened on the inner wall of the main shielding cover 2. By setting the T-shaped connectors 12 and the plurality of connecting grooves 13, the connection between the main shielding cover 2 and the auxiliary shielding cover 3 is achieved, thereby ensuring the stability of the overall structure.

[0033] like Figure 1-6 As shown, the limiting mechanism includes a plurality of limiting bars 14 fixedly mounted on the inner wall of the main shielding cover 2, and a plurality of limiting grooves 15 for use by the limiting bars 14 are opened on the auxiliary shielding cover 3. By setting the limiting bars 14 and the limiting grooves 15, the limiting and guiding functions of the auxiliary shielding cover 3 during adjustment are achieved, thereby ensuring the stability of the auxiliary shielding cover 3 during use.

[0034] like Figure 2 and 3 As shown, a plurality of shielding plates 4 are detachably installed in the main shielding cover 2, and a plurality of clamping blocks 16 are fixedly installed on the inner wall of the main shielding cover 2. The plurality of clamping blocks 16 are grouped in pairs and the opposing groups of clamping blocks 16 are used in cooperation with each other. The shielding plates 4 are slidably installed on the two opposing groups of clamping blocks 16. By setting the clamping blocks 16, the installation and limiting function of the shielding plates 4 are realized, which facilitates the installation and use of the shielding plates 4 at multiple positions and can adjust the size of a single shielding space.

[0035] like Figure 2 and 6 As shown, an operation hole 5 is provided on the upper surface of the main shielding cover 2, a protrusion 6 is provided on the inner wall of the operation hole 5, an inspection frame 7 is provided on the upper surface of the protrusion 6, a plurality of heat dissipation holes 8 are provided on the lower surface of the inspection frame 7, a dust screen 9 is fixedly installed in the inspection frame 7, two bolt rods 17 are relatively slidably installed on the inner wall of the inspection frame 7, a plurality of locking holes for the bolt rod 17 are provided on the main shielding cover 2, a spring 18 is sleeved on the outer surface of the bolt rod 17, and the two ends of the spring 18 are respectively fixedly connected to the opposite surfaces of the bolt rod 17 and the inspection frame 7. By setting the bolt rod 17, the bolt rod 17 is pulled away from the locking hole to unlock the inspection frame 7. At this time, the inspection frame 7 can be taken out to quickly inspect the inside of the shielding cover body 1, and the bolt rod 17 is released. Under the elastic action of the spring 18, the bolt rod 17 is driven to reset to the locking hole to lock the inspection frame 7.

[0036] When the electromagnetic shielding cover of the present application is used, the positions of the shielding plate 4 and the auxiliary shielding cover 3 are first adjusted according to actual needs. When adjusting the shielding plate 4, the shielding plate 4 is moved out of the two adjacent blocks 16, and then inserted into the corresponding blocks 16 to adjust and install the shielding plate 4. After installation, the auxiliary shielding cover 3 is moved to increase or decrease the total shielding space, and finally the shielding cover body 1 is placed above the electronic components and installed through the mounting plate 10 and the mounting hole 11. During use, the bolt rod 17 can be pulled away from the lock hole to unlock the inspection frame 7. After unlocking, the inspection frame 7 is taken out to inspect the electronic components inside the shielding cover body 1, and the dust net 9 can be cleaned at the same time. After completion, the inspection frame 7 is reset and the bolt rod 17 is loosened. Under the elastic action of the spring 18, the bolt rod 17 is driven to reset to the lock hole to lock the inspection frame 7.

[0037] It is easy for those skilled in the art to understand that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modification, equivalent replacement and improvement made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An electromagnetic shielding cover, characterized in that: It comprises a shielding cover body (1), wherein: The shielding cover body (1) comprises a main shielding cover (2) and two auxiliary shielding covers (3), wherein the two auxiliary shielding covers (3) are slidably mounted on the main shielding cover (2); A plurality of shielding plates (4) are detachably installed in the main shielding cover (2); an operation hole (5) is provided on the upper surface of the main shielding cover (2); a protrusion (6) is provided on the inner wall of the operation hole (5); an inspection frame (7) is provided on the upper surface of the protrusion (6); a plurality of heat dissipation holes (8) are provided on the lower surface of the inspection frame (7); and a dust screen (9) is fixedly installed in the inspection frame (7); A plurality of card blocks (16) are fixedly mounted on the inner wall of the main shielding cover (2), the plurality of card blocks (16) are arranged in groups of two and the two opposing groups of card blocks (16) are used in coordination with each other, and the shielding plate (4) is slidably mounted on the two opposing groups of card blocks (16); Two bolt rods (17) are relatively slidably mounted on the inner wall of the inspection frame (7); a plurality of locking holes for the bolt rods (17) are provided on the main shielding cover (2); a spring (18) is sleeved on the outer surface of the bolt rod (17); two ends of the spring (18) are respectively fixedly connected to the opposite surfaces of the bolt rod (17) and the inspection frame (7).

2. An electromagnetic shielding cover according to claim 1, characterized in that: The shielding cover body (1) is provided with a mounting assembly, the mounting assembly comprising a plurality of mounting plates (10) arranged on the shielding cover body (1), the mounting plates (10) being provided with a plurality of mounting holes (11), and the plurality of mounting plates (10) being respectively fixedly mounted on the main shielding cover (2) and the two auxiliary shielding covers (3).

3. The electromagnetic shielding cover according to claim 1, characterized in that: A connecting mechanism is provided between the main shielding cover (2) and the two auxiliary shielding covers (3), the connecting mechanism comprising a plurality of T-shaped connecting pieces (12) fixedly mounted on the upper surface of the auxiliary shielding covers (3), and a plurality of connecting grooves (13) for use by the T-shaped connecting pieces (12) are provided on the inner wall of the main shielding cover (2).

4. The electromagnetic shielding cover according to claim 1, characterized in that: A limiting mechanism is arranged between the main shielding cover (2) and the two auxiliary shielding covers (3), the limiting mechanism comprising a plurality of limiting strips (14) fixedly mounted on the inner wall of the main shielding cover (2), and a plurality of limiting grooves (15) for use by the limiting strips (14) are provided on the auxiliary shielding covers (3).

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