Shielding case

Abstract

The utility model discloses a shielding case, which comprises a shielding frame and a shielding cover, the peripheral wall of the shielding frame is provided with a plurality of convex columns protruding outwards, the surrounding edge of the shielding cover is provided with a plurality of groups of separation structures, each group of separation structures comprises two separation grooves, and a buckling piece is formed in an area between the two separation grooves in the same group of separation structures. The buckling pieces correspond to the protruding columns in a one-to-one mode, gourd-shaped holes used for being connected with the protruding columns in a clamped mode are formed in the buckling pieces, and the ends of small-diameter holes of the gourd-shaped holes are communicated with the bottom edge of the surrounding edge to form an in-out opening allowing the protruding columns to go in and out. The shielding cover is novel in structure, the protruding columns on the peripheral wall of the shielding frame are matched with the gourd-shaped holes in the buckling pieces of the shielding cover to generate larger buckling force, so that the shielding cover and the shielding frame are buckled more stably, the phenomenon that the shielding cover is easy to separate from the shielding frame is effectively improved, and the structural stability of the shielding cover is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of electromagnetic shielding devices, and particularly relates to a shielding cover. Background Art

[0002] In some electronic devices, some components on the circuit board have the need for electromagnetic shielding. At this time, a shielding cover is required. The shielding cover includes a shielding frame and a shielding cover that are snap-connected. In the prior art, the peripheral wall of the shielding frame has a concave pit arranged in a circle, and the peripheral edge of the shielding cover is provided with a convex point. The shielding cover and the shielding frame are snap-connected through the cooperation of the concave pit and the convex point.

[0003] However, the connection stability of the above snap-fit structure between the shielding cover and the shielding frame is not very high, and it is easy to have insufficient snap force and the phenomenon that the shielding cover accidentally detaches from the shielding frame. Summary of the Utility Model

[0004] The technical problem solved by the utility model is to provide a new shielding cover with good snap-fit stability.

[0005] To solve the above technical problem, the technical solution adopted by the utility model is: a shielding cover, including a shielding frame and a shielding cover. The peripheral wall of the shielding frame has a plurality of convex columns protruding outward. The peripheral edge of the shielding cover is provided with a plurality of partition structures. Each group of the partition structures includes two partition grooves. The area between the two partition grooves in the same group of partition structures forms a snap position piece. The snap position pieces correspond to the convex columns one by one. The snap position piece is provided with a calabash hole for clamping the convex column. The end of the small-diameter hole of the calabash hole communicates with the bottom edge of the peripheral edge to form an inlet and outlet for the convex column to enter and exit.

[0006] In one embodiment, the convex column is a hollow convex structure formed by stamping.

[0007] In one embodiment, the shielding frame includes a top ring frame. The peripheral wall is connected to the outer edge of the top ring frame, and the peripheral wall is formed by bending a partial area of the top ring frame.

[0008] In one embodiment, the top ring frame has a suction part.

[0009] In one embodiment, the shielding cover includes a body. The peripheral edge of the body is connected to the peripheral edge, and the peripheral edge is formed by bending a partial area of the body.

[0010] In one embodiment, the convex column is cylindrical. The width of the small-diameter hole of the calabash hole is smaller than the diameter of the convex column, and the diameter of the large-diameter hole of the calabash hole is greater than or equal to the diameter of the convex column.

[0011] In one embodiment, the peripheral edge has a convex protrusion that protrudes inward, and the protrusion is located between two adjacent sets of the partition structures. The peripheral wall of the shielding frame has a concave pit that cooperates with the protrusion.

[0012] In one embodiment, the shielding frame is integrally in the shape of a rectangular frame.

[0013] The beneficial effects of the present utility model are as follows: The structure of this shielding cover is novel. The cooperation between the convex posts on the peripheral wall of the shielding frame and the gourd holes on the buckle pieces of the shielding cover can generate a greater buckling force, so that the shielding cover and the shielding frame can be buckled more stably, effectively improving the phenomenon that the shielding cover is prone to separation from the shielding frame and enhancing the structural stability of the shielding cover. Description of the Drawings

[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on the structures shown in these drawings.

[0015] Figure 1 It is a schematic structural diagram of the shielding cover according to the first embodiment of the present utility model;

[0016] Figure 2 It is an exploded view of the shielding cover according to the first embodiment of the present utility model.

[0017] Explanation of the reference numerals in the drawings:

[0018] 1. Shielding frame; 11. Convex post; 12. Top ring frame; 13. Suction part;

[0019] 2. Shielding cover; 21. Body; 22. Peripheral edge; 23. Gourd hole; 231. Small-diameter hole; 232. Large-diameter hole; 233. Inlet and outlet; 24. Protrusion; 25. Buckle piece;

[0020] 3. Partition groove. Detailed Description of the Embodiments

[0021] The realization of the purpose, functional characteristics and advantages of the present utility model will be further described with reference to the embodiments and the drawings.

[0022] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, rather than all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present utility model.

[0023] It should be noted that if the embodiments of the present utility model involve directional indications such as up, down, left, right, front, back..., then such directional indications are only used to explain the relative positional relationship, movement conditions, etc. between components in a specific posture as shown in the drawings. If the specific posture changes, the directional indications will also change accordingly.

[0024] In addition, if the descriptions such as "first" and "second" are involved in the embodiments of the present utility model, then such descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature.

[0025] In addition, the meaning of "and / or" appearing throughout the text is that it includes three parallel solutions. Taking "and / or" as an example, it includes the solution of A, or the solution of B, or the solution that both A and B are satisfied simultaneously. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the fact that those of ordinary skill in the art can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0026] In this application, unless otherwise clearly defined and limited, the terms "installed", "connected", "connected to", "fixed", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific situations.

[0027] Embodiment 1

[0028] Please refer to Figure 1 and Figure 2 , an embodiment 1 of the present utility model is: a shielding cover, which can be used for electromagnetic shielding of components on a circuit board.

[0029] The shielding cover comprises a shielding frame 1 and a shielding cover 2, wherein the peripheral wall of the shielding frame 1 has a plurality of protruding columns 11 protruding outward, the peripheral edge 22 of the shielding cover 2 is provided with a plurality of groups of partition structures, each group of the partition structures comprises two partition grooves 3, and the area between the two partition grooves 3 in the same group of partition structures forms a buckle plate 25, that is, the buckle plate 25 is the area separated by the partition structure on the peripheral edge 22, the buckle plate 25 corresponds to the protruding column 11 one by one, and the buckle plate 25 is provided with a gourd hole 23 for snapping the protruding column 11, and the end of the small-diameter hole 231 of the gourd hole 23 is connected to the bottom edge of the peripheral edge 22 to form an inlet and outlet 233 for the protruding column 11 to enter and exit.

[0030] In this embodiment, the boss 11 is cylindrical, the width of the small diameter hole 231 of the gourd hole 23 is smaller than the diameter of the boss 11, and the diameter of the large diameter hole 232 of the gourd hole 23 is greater than or equal to the diameter of the boss 11. It is easy to understand that when the boss 11 enters the small diameter hole 231 of the gourd hole 23, the buckle piece 25 area on both sides of the small diameter hole 231 will expand outward to both sides and invade the separation groove 3. After the boss 11 is separated from the small diameter hole 231, the buckle piece 25 area on both sides of the small diameter hole 231 is reset under the action of its own elastic force, so that the width of the small diameter hole 231 becomes smaller than the diameter of the boss 11 again.

[0031] For the convenience of processing, the boss 11 is a hollow convex structure formed by stamping. In other embodiments, the boss 11 may also be a solid structure.

[0032] The shielding frame 1 includes a top ring frame 12, and the peripheral wall is connected to the outer edge of the top ring frame 12. Preferably, the peripheral wall is formed by bending a partial area of ​​the top ring frame 12. That is to say, the shielding frame 1 is formed by a piece of metal plate through cutting, punching, stamping, bending and other processes. The convex column 11 of the hollow convex structure can be stamped synchronously during the process of punching the top ring frame 12. This is conducive to reducing the production time of the shielding frame 1 and improving production efficiency.

[0033] In order to facilitate taking and placing the shielding frame 1 , in this embodiment, the top ring frame 12 has a suction portion 13 , and the top surface of the suction portion 13 is a suction plane.

[0034] In this embodiment, the shielding frame 1 is in the shape of a rectangular frame as a whole. In other embodiments, the shielding frame 1 may also be in other shapes, which can be selected and set according to actual needs.

[0035] The shielding cover 2 includes a body 21 , the edge of the body 21 is connected to the peripheral edge 22 , and the peripheral edge 22 is preferably formed by bending a partial area of ​​the body 21 .

[0036] Optionally, the peripheral edge 22 has a convex projection 24 that protrudes inward. The projection 24 is located between two adjacent sets of the partition structures. The peripheral wall of the shielding frame 1 has a recess (not shown in the figure) that cooperates with the projection 24. The cooperation between the projection 24 and the recess can further improve the fastening force between the shielding cover 2 and the shielding frame 1.

[0037] The above are only optional embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. Any equivalent structural transformation made under the inventive concept of the present invention by using the content of the specification and drawings of the present invention, or any direct / indirect application in other related technical fields is included in the patent protection scope of the present invention.

Claims

1. A shielding cover, characterized in that: It includes a shielding frame and a shielding cover, the peripheral wall of the shielding frame has a plurality of protruding columns protruding outward, the peripheral edge of the shielding cover is provided with a plurality of groups of partition structures, each group of the partition structures includes two partition grooves, the area between the two partition grooves in the same group of partition structures forms a buckle piece, the buckle piece corresponds to the protruding column one by one, the buckle piece is provided with a gourd hole for snapping the protruding column, the end of the small-diameter hole of the gourd hole is connected to the bottom edge of the peripheral edge to form an inlet and outlet for the protruding column to enter and exit.

2. The shielding cover according to claim 1, characterized in that: The convex column is a hollow convex hull structure formed by stamping.

3. The shielding cover according to claim 2, characterized in that: The shielding frame comprises a top ring frame, the peripheral wall is connected to the outer edge of the top ring frame, and the peripheral wall is formed by bending a partial area of ​​the top ring frame.

4. The shielding cover according to claim 3, characterized in that: The top ring frame has a suction portion.

5. The shielding cover according to claim 1, characterized in that: The shielding cover comprises a body, the edge of the body is connected to the surrounding edge, and the surrounding edge is formed by bending a partial area of ​​the body.

6. The shielding cover according to claim 1, characterized in that: The convex column is cylindrical, the width of the small-diameter hole of the gourd hole is smaller than the diameter of the convex column, and the diameter of the large-diameter hole of the gourd hole is greater than or equal to the diameter of the convex column.

7. The shielding cover according to claim 1, characterized in that: The surrounding edge has a protrusion protruding inwardly, and the protrusion is located between two adjacent groups of the separation structures. The peripheral wall of the shielding frame has a pit that matches the protrusion.

8. The shielding cover according to claim 1, characterized in that: The shielding frame is in a rectangular frame shape as a whole.

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