CN108650869B - Composite shielding cover - Google Patents
Composite shielding cover Download PDFInfo
- Publication number
- CN108650869B CN108650869B CN201810156972.8A CN201810156972A CN108650869B CN 108650869 B CN108650869 B CN 108650869B CN 201810156972 A CN201810156972 A CN 201810156972A CN 108650869 B CN108650869 B CN 108650869B
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- CN
- China
- Prior art keywords
- frame
- shielding
- shielding cover
- cover
- buckling
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K9/00—Screening of apparatus or components against electric or magnetic fields
- H05K9/0007—Casings
- H05K9/002—Casings with localised screening
- H05K9/0022—Casings with localised screening of components mounted on printed circuit boards [PCB]
- H05K9/0024—Shield cases mounted on a PCB, e.g. cans or caps or conformal shields
- H05K9/0032—Shield cases mounted on a PCB, e.g. cans or caps or conformal shields having multiple parts, e.g. frames mating with lids
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
- Respiratory Apparatuses And Protective Means (AREA)
Abstract
The invention discloses a composite shielding cover which comprises a shielding frame, a first shielding cover, a second shielding cover and an annular frame with an opening, wherein the shielding frame is buckled and connected with the first shielding cover; the frame is positioned in the shielding frame, two end parts of the frame are respectively connected with the shielding frame, and a first buckling piece is arranged on the peripheral wall of the frame; the first shielding cover is provided with a notch which is aligned with the hollow area of the frame, and is also provided with a via hole which is arranged around the notch; the second shielding cover comprises a body and a plurality of connecting blocks which are arranged around the body, second buckling pieces are arranged on the inner side walls of the connecting blocks, the second buckling pieces on one part of the connecting blocks penetrate through the through holes to be matched with the first buckling pieces, and the second buckling pieces on the other part of the connecting blocks are buckled on the peripheral wall of the shielding frame. The second shielding cover is connected with the frame to lock the opening area of the first shielding cover, so that the structural stability of the composite shielding cover is improved, and the size of the shielding cover is reduced.
Description
Technical Field
The invention relates to the technical field of shielding cases, in particular to a composite shielding case.
Background
The shielding cover comprises a shielding frame and a shielding cover which are detachably connected, specifically, a convex point or a concave point is arranged on the peripheral wall of the shielding frame, the shielding cover is provided with a skirt, and a groove or a protrusion matched with the convex point or the concave point is arranged on the skirt.
In practical application, often be equipped with many components and parts on a circuit board, correspondingly, also can set up a plurality of shields on the circuit board, for the purpose of reduce cost, appear one kind including two shield covers sharing a composite shield cover structure of shielding frame in the shield cover on the market, this structure has practiced thrift the cost, but two side that two shield covers are close to each other are not connected fixedly with the shielding frame, therefore, the regional intensity that two shield covers are close to each other is extremely low in this composite shield cover, deformation easily takes place and makes the shielding effect of shield cover worsen.
Therefore, there is a need to provide a structurally stable, low volume composite shield.
Disclosure of Invention
The technical problems to be solved by the invention are as follows: a small-volume composite shield case with stable structure is provided.
In order to solve the technical problems, the invention adopts the following technical scheme: a composite shielding cover comprises a shielding frame, a first shielding cover, a second shielding cover and an annular frame with an opening, wherein the shielding frame is buckled with the first shielding cover;
the frame is positioned in the shielding frame, two end parts of the frame are respectively connected with the shielding frame, and a first buckling piece is arranged on the peripheral wall of the frame;
the first shielding cover is provided with a notch which is aligned with the hollow area of the frame, and the first shielding cover is also provided with a via hole which is arranged around the notch;
the second shielding cover comprises a body and a plurality of connecting blocks which encircle the body, second buckling pieces are arranged on the inner side walls of the connecting blocks, the second buckling pieces on one part of the connecting blocks penetrate through the through holes to be matched with the first buckling pieces, and the second buckling pieces on the other part of the connecting blocks are buckled on the peripheral wall of the shielding frame.
The invention has the beneficial effects that: the shielding cover is divided into a first shielding area sealed by the first shielding cover and a second shielding area sealed by the second shielding cover, a frame is arranged in the shielding frame, and the connection between the second shielding cover and the frame is used for locking the opening area of the first shielding cover, so that the stability of the structure of the composite shielding cover is greatly improved; in addition, the opening area of the first shielding cover is locked by the second shielding cover, so that the opening area of the first shielding cover does not need to be additionally provided with a clamping piece and a supporting frame matched with the clamping piece is not needed to be additionally arranged on the shielding frame, the size of the shielding cover is reduced, and the manufacturing cost of the composite shielding cover is reduced; the second shielding cover can be detached independently, and a manufacturer can locate vulnerable parts in the second shielding area, so that the vulnerable parts are convenient for a user to maintain.
Drawings
Fig. 1 is a schematic view of the overall structure of a composite shielding case according to a first embodiment of the present invention;
fig. 2 is a schematic structural diagram of a composite shielding case according to a first embodiment of the present invention after the first and second shielding covers are hidden;
fig. 3 is a schematic structural view of a first shielding cover in a composite shielding case according to a first embodiment of the present invention;
fig. 4 is a schematic structural diagram of a second shielding cover in the composite shielding case according to the first embodiment of the invention.
Description of the reference numerals:
1. a shielding frame;
11. a fourth fastener;
2. a first shielding cover;
21. a notch;
22. a via hole;
23. a skirt edge;
3. a second shielding cover;
31. a body;
32. a connecting block;
321. a second fastener;
33. a first detachable portion;
34. a second detachable portion;
4. a frame;
41. a first fastener.
Detailed Description
In order to describe the technical contents, the achieved objects and effects of the present invention in detail, the following description will be made with reference to the embodiments in conjunction with the accompanying drawings.
The most critical concept of the invention is as follows: a frame matched with the second shielding cover is arranged in the shielding frame; the second shielding cover locks the opening area of the first shielding cover through buckling connection with the frame so as to improve the stability of the composite shielding cover structure.
Referring to fig. 1 to 4, a composite shielding cover includes a shielding frame 1, a first shielding cover 2, a second shielding cover 3, and an annular frame 4 with an opening, where the shielding frame 1 is buckled with the first shielding cover 2;
the frame 4 is positioned in the shielding frame 1, two end parts of the frame 4 are respectively connected with the shielding frame 1, and a first buckling piece 41 is arranged on the peripheral wall of the frame 4;
the first shielding cover 2 is provided with a notch 21, the notch 21 is aligned with the hollow area of the frame 4, and the first shielding cover 2 is also provided with a via hole 22 surrounding the notch 21;
the second shielding cover 3 includes a body 31 and a plurality of connection blocks 32 surrounding the body 31, second fastening pieces 321 are disposed on inner side walls of the connection blocks 32, the second fastening pieces 321 on one part of the connection blocks 32 penetrate through the through holes 22 to be matched with the first fastening pieces 41, and the second fastening pieces 321 on the other part of the connection blocks 32 are fastened on the peripheral wall of the shielding frame 1.
From the above description, the beneficial effects of the invention are as follows: the shielding cover is divided into a first shielding area sealed by the first shielding cover and a second shielding area sealed by the second shielding cover, a frame is arranged in the shielding frame, and the connection between the second shielding cover and the frame is used for locking the opening area of the first shielding cover, so that the stability of the structure of the composite shielding cover is greatly improved; in addition, the opening area of the first shielding cover is locked by the second shielding cover, so that the opening area of the first shielding cover does not need to be additionally provided with a clamping piece and a supporting frame matched with the clamping piece is not needed to be additionally arranged on the shielding frame, the size of the shielding cover is reduced, and the manufacturing cost of the composite shielding cover is reduced; the second shielding cover can be detached independently, and a manufacturer can locate vulnerable parts in the second shielding area, so that the vulnerable parts are convenient for a user to maintain.
Further, the first fastening member 41 is a bump or a pit.
As can be seen from the above description, the first fastener is simple in structure and easy to manufacture.
Further, the frame 4 is integrally formed with the shielding frame 1.
Further, the first shielding cover 2 includes a skirt 23, a third fastening member is disposed on the skirt 23, and a fourth fastening member 11 matched with the third fastening member is disposed on the peripheral wall of the shielding frame 1.
Further, the second fastening component 321 is adapted to the fourth fastening component 11.
As is apparent from the above description, the second shield cover is connected to both the frame and the shield frame.
Further, the second shielding cover 3 further includes a first detachable portion 33, where the first detachable portion 33 is connected to the body 31 and the first detachable portion 33 abuts against the upper surface of the first shielding cover 2.
As is apparent from the above description, the provision of the first detachable portion facilitates the removal of the second shield cover by a maintenance person.
Further, the first detachable portion 33 includes a plurality of first elastic pieces having arc segments, and the arc segments abut against the upper surface of the first shielding cover 2.
According to the description, one end of the first easily-detachable part, which is far away from the second shielding cover body, is tilted, so that maintenance personnel can conveniently detach the second shielding cover, in addition, the arc section on the first elastic sheet is propped against the upper surface of the first shielding cover, so that the first shielding cover can tightly prop against the frame around the area of the opening, and the stability of the structure of the composite shielding cover is further improved.
Further, the second shielding cover 3 further includes a second detachable portion 34, the second detachable portion 34 is connected to the body 31, and the second detachable portion 34 abuts against the upper surface of the shielding frame 1.
Further, the second detachable portion 34 includes a plurality of second elastic pieces having arc segments, and the arc segments abut against the upper surface of the shielding frame 1.
Example 1
Referring to fig. 1 to 4, a first embodiment of the present invention is as follows: a composite shielding cover comprises a shielding frame 1, a first shielding cover 2, a second shielding cover 3 and an annular frame 4 with an opening, wherein the shielding frame 1 is buckled and connected with the first shielding cover 2;
the frame 4 is positioned in the shielding frame 1, two end parts of the frame 4 are respectively connected with the shielding frame 1, and a first buckling piece 41 is arranged on the peripheral wall of the frame 4;
the first shielding cover 2 is provided with a notch 21, the notch 21 is aligned with the hollow area of the frame 4, the first shielding cover 2 is further provided with a via hole 22 surrounding the notch 21, in this embodiment, the shielding frame 1 is rectangular, the frame 4 is n-shaped, and in other embodiments, the frame 4 may be polygonal with an opening, circular with an opening, or other shapes.
The second shielding cover 3 includes a body 31 and a plurality of connection blocks 32 surrounding the body 31, second fastening pieces 321 are disposed on inner side walls of the connection blocks 32, the second fastening pieces 321 on one part of the connection blocks 32 penetrate through the through holes 22 to be matched with the first fastening pieces 41, and the second fastening pieces 321 on the other part of the connection blocks 32 are fastened on the peripheral wall of the shielding frame 1.
In this embodiment, the frame 4 and the shielding frame 1 are integrally formed, and the first fastening member 41 is a bump or a pit.
In detail, the first shielding cover 2 includes a skirt 23, a third fastening member is disposed on the skirt 23, and a fourth fastening member 11 matched with the third fastening member is disposed on the peripheral wall of the shielding frame 1.
In order to enable a certain side edge of the second shielding cover 3 to be stably fixed on the shielding frame 1, the second fastening member 321 is optionally matched with the fourth fastening member 11. That is, the first fastener 41 has the same structure as the four fasteners, and the second fastener 321 has the same structure as the third fastener.
For convenience in removing the second shielding cover 3 by maintenance personnel, the second shielding cover 3 further includes a first detachable portion 33, the first detachable portion 33 is connected with the body 31, and the first detachable portion 33 abuts against the upper surface of the first shielding cover 2.
Preferably, the first detachable portion 33 includes a plurality of first elastic pieces having arc segments, and the arc segments abut against the upper surface of the first shielding cover 2.
Optionally, the second shielding cover 3 further includes a second detachable portion 34, the second detachable portion 34 is connected to the body 31, and the second detachable portion 34 abuts against the upper surface of the shielding frame 1.
Similarly, the second detachable portion 34 includes a plurality of second elastic pieces having arc segments, and the arc segments abut against the upper surface of the shielding frame 1.
In summary, the composite shielding cover provided by the invention is divided into the first shielding region closed by the first shielding cover and the second shielding region closed by the second shielding cover, the frame is arranged in the shielding frame, and the opening region of the first shielding cover is locked by the connection of the second shielding cover and the frame, so that the structural stability of the composite shielding cover is greatly improved; in addition, the opening area of the first shielding cover is locked by the second shielding cover, so that the opening area of the first shielding cover does not need to be additionally provided with a clamping piece and a supporting frame matched with the clamping piece is not needed to be additionally arranged on the shielding frame, the size of the shielding cover is reduced, and the manufacturing cost of the composite shielding cover is reduced; the second shielding cover can be detached independently, and a manufacturer can locate vulnerable parts in the second shielding area, so that the vulnerable parts are convenient for a user to maintain.
The foregoing description is only illustrative of the present invention and is not intended to limit the scope of the invention, and all equivalent changes made by the specification and drawings of the present invention, or direct or indirect application in the relevant art, are included in the scope of the present invention.
Claims (9)
1. A composite shield, characterized in that: the shielding frame is buckled and connected with the first shielding cover;
the frame is positioned in the shielding frame, two end parts of the frame are respectively connected with the shielding frame, and a first buckling piece is arranged on the peripheral wall of the frame;
the first shielding cover is provided with a notch which is aligned with the hollow area of the frame, and the first shielding cover is also provided with a via hole which is arranged around the notch;
the second shielding cover comprises a body and a plurality of connecting blocks which encircle the body, second buckling pieces are arranged on the inner side walls of the connecting blocks, the second buckling pieces on one part of the connecting blocks penetrate through the through holes to be matched with the first buckling pieces, and the second buckling pieces on the other part of the connecting blocks are buckled on the peripheral wall of the shielding frame.
2. The composite shield according to claim 1, wherein: the first buckling piece is a convex point or a concave pit.
3. The composite shield according to claim 1, wherein: the frame and the shielding frame are integrally formed.
4. The composite shield according to claim 1, wherein: the first shielding cover comprises a skirt edge, a third buckling piece is arranged on the skirt edge, and a fourth buckling piece matched with the third buckling piece is arranged on the peripheral wall of the shielding frame.
5. The composite shield can of claim 4, wherein: the second buckling piece is matched with the fourth buckling piece.
6. The composite shield according to claim 1, wherein: the second shielding cover further comprises a first easily-detachable part, wherein the first easily-detachable part is connected with the body and is abutted against the upper surface of the first shielding cover.
7. The composite shield can of claim 6, wherein: the first easily-detachable part comprises a plurality of first elastic pieces with arc sections, and the arc sections are abutted against the upper surface of the first shielding cover.
8. The composite shield according to claim 1, wherein: the second shielding cover further comprises a second easily-detachable portion, the second easily-detachable portion is connected with the body, and the second easily-detachable portion abuts against the upper surface of the shielding frame.
9. The composite shield can of claim 8, wherein: the second easily-detachable part comprises a plurality of second elastic pieces with arc sections, and the arc sections are abutted against the upper surface of the shielding frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810156972.8A CN108650869B (en) | 2018-02-24 | 2018-02-24 | Composite shielding cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810156972.8A CN108650869B (en) | 2018-02-24 | 2018-02-24 | Composite shielding cover |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108650869A CN108650869A (en) | 2018-10-12 |
| CN108650869B true CN108650869B (en) | 2023-08-11 |
Family
ID=63744226
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810156972.8A Active CN108650869B (en) | 2018-02-24 | 2018-02-24 | Composite shielding cover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108650869B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109561644B (en) * | 2018-11-28 | 2020-10-30 | 维沃移动通信有限公司 | Preparation method of circuit board assembly, circuit board assembly and mobile terminal |
| CN113079685B (en) * | 2021-03-25 | 2022-12-20 | Oppo广东移动通信有限公司 | Shielding cover, shielding assembly and electronic equipment |
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|---|---|
| CN108650869A (en) | 2018-10-12 |
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