A shield structure

Abstract

The shielding case structure is formed by one plate material, a plurality of first cut grooves extending along a first direction and a plurality of second cut grooves extending along a second direction are formed on the surface of the plate material, wherein each first cut groove and second cut groove is used to be operated to realize one of keeping plane, bending and cutting, and the first direction is orthogonal to the second direction. The shielding case structure comprises a cover part and a rib wall part. The cover part is a closed part formed by at least two first cut grooves and at least two second cut grooves in the plate material, and the shape of the cover part corresponds to the projection shape of the region to be electromagnetically shielded in the circuit board. The rib wall part is a part cut by at least two other first cut grooves and at least two other second cut grooves in the plate material around the cover part, and the part is bent on the same side relative to the cover part; the height of the rib wall part corresponds to the height of the electronic element in the region to be electromagnetically shielded.

Description

Technical Field

[0001] This utility model relates to the field of electromagnetic shielding technology, and in particular to a shielding cover structure. Background Technology

[0002] In electronic devices, when signals from various circuits, such as high-frequency circuits, radio frequency circuits, and high-voltage and low-voltage circuits, are mixed together, mutual interference can occur, causing abnormal operation of electronic components and even causing the device to crash. Therefore, electromagnetic shielding covers are installed on the circuit boards of electronic devices to cover electronic components, block the propagation of electromagnetic waves, and thus achieve the effect of shielding signal interference.

[0003] To accommodate the different layouts of electronic components in various circuits, electromagnetic shielding covers of varying sizes and shapes are typically designed. Currently, the molding of these covers requires different stamping dies, resulting in high mold-making costs. Since each circuit board contains multiple electronic components requiring electromagnetic shielding, research and development costs remain high. Therefore, reducing the manufacturing cost of electromagnetic shielding covers is a pressing issue in this field. Utility Model Content

[0004] Therefore, the technical problem to be solved by this utility model is to provide a shielding structure that can reduce production and manufacturing costs in order to address the shortcomings of the prior art.

[0005] An embodiment of this utility model provides a shielding cover structure, which is formed from a plate.

[0006] The surface of the sheet has multiple first grooves extending along a first direction and multiple second grooves extending along a second direction, wherein each first groove and second groove is used to be operated to achieve one of three functions: maintaining a flat surface, bending, and cutting, and the first direction is orthogonal to the second direction.

[0007] The shielding structure includes:

[0008] The cover portion is a closed portion formed by at least two of the first grooves and at least two of the second grooves in the board material, the shape of which corresponds to the projected shape of the electromagnetic shielding area in the circuit board; and

[0009] The ribbed portion is a portion formed by cutting at least two other first grooves and at least two other second grooves around the periphery of the cover portion in the plate, and the portion is bent on the same side relative to the cover portion; the height of the ribbed portion corresponds to the height of the electronic components in the area to be electromagnetically shielded.

[0010] Preferably, the first groove is a V-shaped groove;

[0011] And / or, the second groove is a V-shaped groove.

[0012] Preferably, the plurality of first grooves are arranged at equal intervals;

[0013] And / or, the multiple second grooves are arranged at equal intervals.

[0014] More preferably, the spacing between two adjacent first grooves is between 0.3 mm and 0.5 mm;

[0015] And / or, the spacing between two adjacent second cuts is between 0.3 mm and 0.5 mm.

[0016] More preferably, the height of the reinforcing wall portion is an integer multiple of the interval distance between two adjacent first cuts, and the height of the reinforcing wall portion is an integer multiple of the interval distance between two adjacent second cuts.

[0017] Preferably, the depth of the first groove is between 1 / 3 and 1 / 2 of the thickness of the sheet metal;

[0018] And / or, the depth of the second groove is between 1 / 3 and 1 / 2 of the thickness of the sheet metal.

[0019] Preferably, the reinforcing wall is welded to the circuit board using a surface mount process.

[0020] Preferably, the circuit board is fixed with a plurality of shielding clips, and the reinforcing wall portion is correspondingly snapped into the plurality of shielding clips.

[0021] Preferably, the sheet material is a metal sheet.

[0022] Compared with the prior art, the shielding structure provided by the embodiments of this utility model is formed from a sheet material with multiple first and second grooves on its surface. The extension directions of the first and second grooves are orthogonal and can be manipulated to achieve one of three functions: maintaining a flat surface, bending, and cutting. The shielding structure includes a cover portion and a ribbed portion. The cover portion is a closed part formed by the first and second grooves in the sheet material, and its shape corresponds to the projected shape of the area to be electromagnetically shielded. The ribbed portion is the part formed by cutting other first and second grooves around the cover portion, and this part is bent on the same side as the cover portion; the height of the ribbed portion corresponds to the height of the electronic components in the area to be electromagnetically shielded. In this way, the required size shielding structure can be formed by cutting and bending the sheet material through simple folding and tearing operations, without the need to make a new mold for each new shielding size, which greatly reduces the production and manufacturing cost. Attached Figure Description

[0023] Figure 1 This is a three-dimensional structural diagram of a shielding cover structure provided in one embodiment of the present utility model;

[0024] Figure 2 This is an exploded structural diagram of a shielding cover structure provided in one embodiment of the present invention;

[0025] Figure 3 This is a schematic diagram of the structure of the shielding cover provided in one embodiment of the present invention. Detailed Implementation

[0026] To provide a better understanding of the purpose, structure, features, and functions of this utility model, detailed descriptions are provided below with reference to specific embodiments.

[0027] Certain terms are used in the specification and claims to refer to specific elements. It will be understood by those skilled in the art that manufacturers may use different names to refer to the same element. This specification and claims do not distinguish elements by differences in name, but rather by differences in function. The term "comprising" throughout the specification and claims is an open-ended term and should be interpreted as "comprising but not limited to".

[0028] The following embodiments and accompanying drawings illustrate the implementation of this utility model. Throughout this specification, the same element symbols denote the same elements. It should be understood that when an element is referred to as being "on" or "connected" to another element, it may be directly on or connected to the other element, or there may be intermediate elements present. Conversely, when an element is referred to as being "directly on" or "directly connected to" another element, there are no intermediate elements present. As used herein, "connection" may refer to a physical and / or electrical connection. Furthermore, "electrical connection" or "electrical coupling" indicates that intermediate elements may be present.

[0029] The directional terms used herein are for detailed description and not intended to limit the invention. For example, "upper" and "lower" are merely used to describe the relative positions of elements in the drawings, depending on the specific orientation of the drawings. Furthermore, ordinal numbers such as "first," "second," and "third" used in the specification are for modifying elements and do not inherently imply any prior ordinal number for that element, nor do they represent the order of one element with another, or the order of manufacturing processes. The use of these ordinal numbers is solely to clearly distinguish one element with a given name from another element with the same name.

[0030] Please refer to the shielding cover structure 1 provided in one embodiment of this utility model. Figures 1 to 3 ,in, Figure 1 This is a three-dimensional structural diagram of the shielding cover structure 1 provided in one embodiment of the present invention. Figure 2This is an exploded view of the shielding structure 1 provided in one embodiment of the present invention. Figure 3 This is a schematic diagram of the plate 10 of the shielding structure 1 provided in one embodiment of the present invention. The shielding structure 1 is formed by processing the plate 10. The surface of the plate 10 has multiple first grooves 121 extending along a first direction S1 and multiple second grooves 122 extending along a second direction S2. Each first groove 121 and second groove 122 is used to be operated to achieve one of three functions: keeping the plate 10 flat, bending, and cutting. The second direction S2 is orthogonal to the first direction S1.

[0031] The shielding structure 1 includes a ribbed wall portion 11 and a cover portion 12. The cover portion 12 is a closed portion formed by at least two first grooves 121 and at least two second grooves 122 surrounding the plate 10. The shape of the cover portion 12 corresponds to the projected shape of the electromagnetic shielding area 31 in the circuit board 3. The ribbed wall portion 11 is a portion formed by cutting at least two other first grooves 121 and at least two other second grooves 122 around the cover portion in the plate 10, and this portion is bent on the same side relative to the cover portion 12. In this embodiment, the ribbed wall portion 11 is bent at 90 degrees on the same side relative to the cover portion 12 to form a cuboid-shaped cover, but the actual application is not limited to this. The height of the reinforcing wall portion 11 corresponds to the height of the electronic component 2 in the electromagnetic shielding area 31. In other words, the cover portion 12 and the reinforcing wall portion 11 together form a space to accommodate the electronic component 2. This ensures that when the shielding structure 1 is fixed to the circuit board 3 and covers the electronic component 2, the electronic component 2 in this space is protected from interference by electromagnetic wave signals from outside the shielding structure 1, guaranteeing the normal operation of the electronic component 2. Thus, during the fabrication of the shielding structure 1 from the plate 10, the multiple orthogonal first grooves 121 and second grooves 122 on the plate 10 facilitate direct cutting, giving the shielding structure 1 a high degree of molding freedom and enabling rapid molding without the need for molds, saving mold-making costs and reducing the manufacturing cost of the shielding structure 1.

[0032] It should be noted that, as Figures 1 to 3 As shown, a sheet material 10 can be cut into multiple shielding structures 1, meaning that the original size of the sheet material 10 is much larger than the size corresponding to a shielding structure 1. Cutting the sheet material 10 with the corresponding first groove 121 and second groove 122 yields a smaller sheet material 10 corresponding to the size of a shielding structure 1, such as... Figure 3 As shown, Figure 3The small-sized sheet 10 shown is cut. It can be understood that if the small-sized sheet 10 is located at the corner of the raw sheet 10, only one first groove 121 and one second groove 122 need to be cut. In this case, the two adjacent edges at the corner of the raw sheet 10 can also be understood as one first groove 121 and one second groove 122 respectively. However, practical applications are not limited to this. In this embodiment, the edge of the small-sized sheet 10 is further cut using a stamping fixture. Figure 3 The portion shown by the dashed line is the bending line. It is punched and bent to form the ribbed wall portion 11, but the actual application is not limited to this. Preferably, the four corners of the small-sized sheet 10 can also be cut off using a cutting jig so that the adjacent two edges of the small-sized sheet 10 can be bent in different directions. That is, the at least two other first cutting grooves 121 and at least two other second cutting grooves 122 are cut to form the ribbed wall portion 11, but it is not limited to this.

[0033] In a preferred embodiment, the plate 10 is quadrilateral, and the first direction S1 is parallel to one of the sides of the quadrilateral to facilitate cutting and shaping.

[0034] In a preferred embodiment, such as Figure 3 As shown, the first groove 121 is a V-shaped groove; in other embodiments, the first groove 121 may also be a U-shaped groove or other similar shapes that are easy to cut, but is not limited thereto.

[0035] In a preferred embodiment, such as Figures 1 to 3 As shown, the multiple first grooves 121 are arranged at equal intervals. Preferably, the interval between two adjacent first grooves 121 is between 0.3mm and 0.5mm. This facilitates the selection of appropriate positions for the first grooves 121 to be cut and formed according to the requirements of shielding structures 1 of different sizes. At the same time, the smaller interval between two adjacent first grooves 121 facilitates the production of shielding structures 1 of more sizes, and also makes the dimensional accuracy of the shielding structure 1 higher.

[0036] In a preferred embodiment, the depth of the first groove 121 is between 1 / 3 and 1 / 2 of the thickness of the sheet 10. For example, when the thickness of the sheet 10 is 0.6 mm, the depth of the first groove 121 is between 0.2 mm and 0.3 mm, so that the first groove 121 is easy to cut, and also ensures the structural strength of the sheet 10 near the uncut first groove 121, that is, the sheet 10 in this part remains flat.

[0037] The second groove 122 is similar to the first groove 121 described above, and will not be repeated here.

[0038] In a preferred embodiment, the length of the formed shielding structure 1 in the second direction S2 (i.e., the length of the cover portion 12 in the second direction S2) is an integer multiple of the distance between two adjacent first grooves 121; the length of the shielding structure 1 in the first direction S1 (i.e., the length of the cover portion 12 in the first direction S1) is an integer multiple of the distance between two adjacent second grooves 122. The length of the shielding structure 1 in the first direction S1 and its length in the second direction S2 can be the same or different, depending on the specific projected shape of the electromagnetic shielding area 31, and is not limited thereto. In a preferred embodiment, the height of the reinforcing wall portion 11 is an integer multiple of the distance between two adjacent first grooves 121, and the height of the reinforcing wall portion 11 is an integer multiple of the distance between two adjacent second grooves 122.

[0039] In some preferred embodiments, the rib wall portion 11 is soldered to the circuit board 3 by surface mount technology (SMT), the specific operation steps of which are common in the prior art and will not be described in detail here.

[0040] In some preferred embodiments, a plurality of shielding clips (not shown in the figure) are fixed on the circuit board 3, and the reinforcing wall portion 11 is correspondingly engaged in the plurality of shielding clips. Preferably, the plurality of shielding clips are respectively soldered to the circuit board 3 by a surface mount process, but this is not a limitation. Each shielding clip may have two spring pieces with opposite elastic directions, the two spring pieces elastically abutting each other, and the reinforcing wall portion 11 is inserted between the two spring pieces to clamp and fix them.

[0041] In a preferred embodiment, the plate 10 is a metal plate 10, for example, it can be made of aluminum, copper and nickel with a high magnetic permeability metal and its alloys with a content of about 80%. By means of the toughness and ductility of the metal, the metal plate 10 can be cut and bent at will, while ensuring that the shielding cover structure 1 after forming has strong structural strength and good electromagnetic shielding performance.

[0042] In summary, the shielding structure provided by the embodiments of this utility model is formed by cutting a sheet metal. The shielding structure includes a ribbed section and a cover section. The ribbed section is used to fix to a circuit board and surrounds the outer side of electronic components on the circuit board. The ribbed section is formed by bending the edge of the cut sheet metal relative to its middle portion. The cover section is formed from the middle portion of the sheet metal, such that the cover section and the ribbed section together form a receiving space for covering the electronic components. The surface of the sheet metal has multiple first grooves extending in a first direction, at least one of which is used for cutting, so that the sheet metal forms a shape corresponding to the dimensions of the shielding structure. A shielding structure of the corresponding dimensions can be formed through simple folding and tearing operations, eliminating the need for custom molds for shielding dimensions and greatly reducing manufacturing costs.

[0043] This utility model has been described by the above-described embodiments; however, these embodiments are merely examples for implementing this utility model. It must be noted that the disclosed embodiments do not limit the scope of this utility model. Conversely, any modifications and refinements made without departing from the spirit and scope of this utility model are within the scope of patent protection of this utility model.

Claims

1. A shielding cover structure, formed from a sheet metal, characterized in that, The surface of the sheet has multiple first grooves extending along a first direction and multiple second grooves extending along a second direction, wherein each first groove and second groove is used to be operated to achieve one of three functions: maintaining a flat surface, bending, and cutting, and the first direction is orthogonal to the second direction. The shielding structure includes: The cover portion is a closed portion formed by at least two of the first grooves and at least two of the second grooves in the board material, the shape of which corresponds to the projected shape of the electromagnetic shielding area in the circuit board; and The ribbed portion is a portion formed by cutting at least two other first grooves and at least two other second grooves around the periphery of the cover portion in the plate, and the portion is bent on the same side relative to the cover portion; the height of the ribbed portion corresponds to the height of the electronic components in the area to be electromagnetically shielded.

2. The shielding cover structure as described in claim 1, characterized in that, The first groove is a V-shaped groove; And / or, the second groove is a V-shaped groove.

3. The shielding cover structure as described in claim 1, characterized in that, The multiple first grooves are arranged at equal intervals; And / or, the multiple second grooves are arranged at equal intervals.

4. The shielding cover structure as described in claim 3, characterized in that, The spacing between two adjacent first grooves is between 0.3 mm and 0.5 mm; And / or, the spacing between two adjacent second cuts is between 0.3 mm and 0.5 mm.

5. The shielding cover structure as described in claim 3, characterized in that, The height of the reinforcing wall portion is an integer multiple of the interval distance between two adjacent first cuts, and the height of the reinforcing wall portion is an integer multiple of the interval distance between two adjacent second cuts.

6. The shielding cover structure as described in claim 1, characterized in that, The depth of the first groove is between 1 / 3 and 1 / 2 of the thickness of the sheet metal; And / or, the depth of the second groove is between 1 / 3 and 1 / 2 of the thickness of the sheet metal.

7. The shielding cover structure as described in claim 1, characterized in that, The reinforcing wall is welded and fixed to the circuit board using a surface mount process.

8. The shielding structure as described in claim 1, characterized in that, The circuit board is fixed with multiple shielding clips, and the reinforcing wall is correspondingly snapped into the multiple shielding clips.

9. The shielding structure as described in claim 1, characterized in that, The sheet material is made of metal.

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