CN101355868A - Electromagnetic shielding cover - Google Patents
Electromagnetic shielding cover Download PDFInfo
- Publication number
- CN101355868A CN101355868A CNA2008100428771A CN200810042877A CN101355868A CN 101355868 A CN101355868 A CN 101355868A CN A2008100428771 A CNA2008100428771 A CN A2008100428771A CN 200810042877 A CN200810042877 A CN 200810042877A CN 101355868 A CN101355868 A CN 101355868A
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- cover
- shielding
- shielding cover
- electro
- magnetic shielding
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Abstract
The present invention discloses an electromagnetic shielding cover, comprising a shielding frame and a shielding lid. The shielding lid is made from a metallic conduction shielding adhesive tape. The shielding frame is adhered to the surface of the shielding cover. The shielding cover has the advantages that the shielding cover can reduce the material cost, the labor cost and the quality inspection cost of the manufacture, the size of the shielding cover can be reduced, the electromagnetic leakage due to the gap between the shielding lid and the shielding cover can be avoided, and the handling operation is simple and convenient.
Description
[technical field]
The present invention relates to electronic product and make the field, relate in particular to electro-magnetic shielding cover.
[background technology]
Growing along with mobile communication technology and other various microwave communication technology is flooded with electromagnetic wave more and more intensive, each wave band in the space of people's life.For mobile phone and other various consumption electronic products, the electromagnetic wave in the space is easy to disturb the operate as normal of its internal circuit, causes the internal circuit operation irregularity, causes the decreased performance even the inefficacy of electronic product.
In mobile phone and other various consumption electronic products,, need to adopt special electro-magnetic shielding cover noise electromagnetic wave to external world to shield usually, to guarantee the operate as normal of electronic product in order to shield the work that the external electromagnetic wave noise disturbs internal circuit.
Accompanying drawing 1 is the electro-magnetic shielding cover structural representation of prior art, comprises screening cover 11 and mask frame 12.Described screening cover 11 and mask frame 12 constitute by metallic plate, adopt different moulds that metallic plate is carried out punching press and forms required shape, are assembled together mutually by the buckle structure 13 that forms when the punching press on four jiaos then.In use, screening cover is fixed on electronic product, mobile phone for example need carry out the position of electromagnetic shielding, and positions such as the pcb board of electronic product, LCD screen are shielded.
The shortcoming of prior art is, need to adopt two kinds of different moulds stamped shield lid and mask frame respectively, and in electronic product, need to design special structure and be used for fixing radome, when being keeped in repair, electronic product is not easy to loading and unloading, and buckle structure inevitably either large or small gap can occur after assembling, the phenomenon that electromagnetic wave is revealed can occur during actual the use from these slits.
[summary of the invention]
Technical problem to be solved by this invention is, a kind of electro-magnetic shielding cover is provided, and can save mould and manufacturing cost, is convenient to load and unload and can improve the effect of electromagnetic shielding.
In order to address the above problem, the invention provides a kind of electro-magnetic shielding cover, comprise mask frame and screening cover, described screening cover adopts the metallic conduction shielding tape to make, and described mask frame adheres to the screening cover surface.
Described screening cover adopts the metallic conduction shielding tape to make, the shape that the mode that employing is cut out promptly can obtain designing, and the screening cover in the conventional art adopts metallic plate as manufacturing materials, needs independent designing mould, makes through punching press.At present the cost of metallic plate on the market is far above metallic plate, and above-mentioned mould manufacturing and Sheet Metal Forming Technology all need skilled employee to operate, and needs independent quality inspection operation that the finished product of punching press is carried out strict quality inspection.Therefore technical scheme provided by the present invention can reduce material cost, cost of labor and the quality inspection cost of manufacturing.
The metallic conduction shielding tape is thinner than metallic plate, therefore can reduce the integral thickness of radome.And, metal adhesive tape and mask frame adhere to each other by the mode of pasting, there is not the space between the two, and prior art adopts buckle structure to fix, the space is arranged between screening cover and the mask frame unavoidably, both compare, and technical scheme provided by the present invention can reduce the lateral dimension of radome, and can avoid between screening cover and the radome owing to the electromagnetic leakage that has the space to produce.
Screening cover adopts metallic conduction screen adhesive tape, can be directly mode by stickup adhere to the position that needs to carry out electromagnetic shielding in the electronic product, needn't be on electronic product the special fixture of otherwise designed.And, only screening cover being taken off and can inside keeped in repair the occasion that keep in repair inside needs dismounting radome, only need after maintenance finishes again radome to be pasted to go back to get final product, charge and discharge operations is simple and convenient.
As optional technical scheme, described metallic conduction shielding tape is selected from a kind of in aluminium conductive shield adhesive tape, copper conductive shield adhesive tape and the tin-coated copper conductive shield adhesive tape.Above-mentioned material is the most common metallic conduction shielding tape, and is cheap, and the quality softness is easy to processing, is preferable material therefore.
As optional technical scheme, the material of described mask frame is a metallic plate.Adopt metallic sheet material processing mask frame, its good conductivity can be guaranteed the effectiveness of radome.Described metallic plate is selected from a kind of in tinplate or the Alpaka coiled strip, and above-mentioned material is easy to punching press, is optimized technical scheme.
The invention has the advantages that:
1, can reduce material cost, cost of labor and the quality inspection cost of manufacturing.
2, can reduce the size of radome.
3, can avoid between screening cover and the radome owing to the electromagnetic leakage that has the space to produce.
4, charge and discharge operations is simple and convenient.
[description of drawings]
Accompanying drawing 1 is the electro-magnetic shielding cover structural representation of prior art;
Fig. 2 is the structural representation of the electro-magnetic shielding cover described in the embodiment of electro-magnetic shielding cover provided by the invention.
[embodiment]
Provide the embodiment of electro-magnetic shielding cover provided by the invention below in conjunction with accompanying drawing.
Fig. 2 is the structural representation of the electro-magnetic shielding cover described in this embodiment, comprises screening cover 21 and mask frame 22, and described screening cover 21 adopts the metallic conduction shielding tape to make, and described mask frame 22 adheres to the surface of screening cover 21.Electro-magnetic shielding cover provided in the present embodiment is exclusively used in the mobile phone.
The wide 19.58mm of electro-magnetic shielding cover described in this embodiment, long 24.73mm, thickness 1.15mm.Prior art is if adopt the metallic plate punching press to form screening cover, under the situation of the mask frame 22 that adopts same size, because the thickness of metallic plate itself and buckle structure fastening are not tight, the wide 19.84mm of resulting electro-magnetic shielding cover, long 24.99mm, thickness 1.20mm.This embodiment can reduce the size of radome, is particularly useful in the very compact design in space.
Described metallic conduction shielding tape adopts aluminium conductive shield adhesive tape, and aluminium conductive shield adhesive tape good conductivity, light weight are a kind of preferable material.
The material of described mask frame 22 is a tinplate.
Conventional shields is made up of cover and frame, need a cover high accuracy stamping die respectively, and this embodiment only needs the stamping die of a cover frame, so die cost saves about 50%.
The above only is a preferred implementation of the present invention; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (4)
1. an electro-magnetic shielding cover comprises mask frame and screening cover, it is characterized in that, described screening cover adopts the metallic conduction shielding tape to make, and described mask frame adheres to the screening cover surface.
2. according to the electro-magnetic shielding cover described in the claim 1, it is characterized in that described metallic conduction shielding tape is selected from a kind of in aluminium conductive shield adhesive tape, copper conductive shield adhesive tape and the tin-coated copper conductive shield adhesive tape.
3. according to the electro-magnetic shielding cover described in the claim 1, it is characterized in that the material of described mask frame is a metallic plate.
4. according to the electro-magnetic shielding cover described in the claim 3, it is characterized in that described metallic plate is selected from a kind of in tinplate or the Alpaka coiled strip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100428771A CN101355868A (en) | 2008-09-12 | 2008-09-12 | Electromagnetic shielding cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100428771A CN101355868A (en) | 2008-09-12 | 2008-09-12 | Electromagnetic shielding cover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101355868A true CN101355868A (en) | 2009-01-28 |
Family
ID=40308370
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008100428771A Pending CN101355868A (en) | 2008-09-12 | 2008-09-12 | Electromagnetic shielding cover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101355868A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105206312A (en) * | 2015-10-10 | 2015-12-30 | 昆山高琳科技五金有限公司 | Shielding cover and maintaining using method thereof |
| WO2017152562A1 (en) * | 2016-03-11 | 2017-09-14 | 深圳市信维通信股份有限公司 | Shielding case structure |
| CN108112227A (en) * | 2017-11-22 | 2018-06-01 | 努比亚技术有限公司 | A kind of shielding case and circuit board |
| CN109315084A (en) * | 2016-05-30 | 2019-02-05 | 阿莫绿色技术有限公司 | Ultra-thin type electromagnetic wave screen covers piece and the electronic equipment with it |
| US10652996B2 (en) | 2015-12-21 | 2020-05-12 | 3M Innovative Properties Company | Formable shielding film |
| WO2023222045A1 (en) * | 2022-05-20 | 2023-11-23 | 华为技术有限公司 | Circuit board assembly and electronic device |
-
2008
- 2008-09-12 CN CNA2008100428771A patent/CN101355868A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105206312A (en) * | 2015-10-10 | 2015-12-30 | 昆山高琳科技五金有限公司 | Shielding cover and maintaining using method thereof |
| US10652996B2 (en) | 2015-12-21 | 2020-05-12 | 3M Innovative Properties Company | Formable shielding film |
| WO2017152562A1 (en) * | 2016-03-11 | 2017-09-14 | 深圳市信维通信股份有限公司 | Shielding case structure |
| CN109315084A (en) * | 2016-05-30 | 2019-02-05 | 阿莫绿色技术有限公司 | Ultra-thin type electromagnetic wave screen covers piece and the electronic equipment with it |
| CN108112227A (en) * | 2017-11-22 | 2018-06-01 | 努比亚技术有限公司 | A kind of shielding case and circuit board |
| WO2023222045A1 (en) * | 2022-05-20 | 2023-11-23 | 华为技术有限公司 | Circuit board assembly and electronic device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20090128 |