CN101166410A - Electromagnetic interference shielding device and its applied electronic device - Google Patents
Electromagnetic interference shielding device and its applied electronic device Download PDFInfo
- Publication number
- CN101166410A CN101166410A CNA2006100631574A CN200610063157A CN101166410A CN 101166410 A CN101166410 A CN 101166410A CN A2006100631574 A CNA2006100631574 A CN A2006100631574A CN 200610063157 A CN200610063157 A CN 200610063157A CN 101166410 A CN101166410 A CN 101166410A
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- electromagnetic interference
- circuit board
- pcb
- printed circuit
- insulation shell
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Abstract
Using printed conducting material, the invention forms shielding layer for electromagnetic interference (EI). The device for shielding EI includes an insulation shell body (ISB), and multiple grounded terminal pads (GTPs) setup on ISB. Printed conducting material is in use for connection between grounded terminal pads. The electronic apparatus of using the said device for shielding EI includes a device for shielding EI, a printed circuit board (PCB), where multiple grounded terminal pads are setup on PCB. When ISB is covered on the PCB, GTPs on ISB are connected to corresponding GTPs on PCB electrically through a conductive body so as to obtain effect of shielding EI for PCB.
Description
Technical field
The present invention is a kind of EMI (Electro Magnetic Interference, electromagnetic interference) screening arrangement, be particularly related to a kind of by changing and PCB (Print Circuit Board, printed circuit board (PCB)) shielding layer structure that combines, electronic component on the shielded printed circuit board produces the device of EMI effect, and relates to the electronic equipment of using this electromagnetic interference shielding device.
Background technology
The requisite parts of electronic equipment are PCB (Print Circuit Board, printed circuit board (PCB)s), are distributing on PCB and the relevant electronic component of electronic equipment running.Electronic equipment is when work, and the electronic component on its internal printed circuit board can discharge electromagnetic wave, produces electromagnetic radiation, therefore, can reduce the performance of whole system, perhaps outside biology or material is produced harmful effect.General solution is to add suitable airtight metallic shield body at this printed circuit panel area, to prevent the EMI effect of printed circuit board (PCB).Be to reduce the weight of electronic equipment, its housing is general to adopt nonconducting light material to make, and respectively installs a metal shell additional at the surfaces externally and internally of housing and come shield electromagnetic interference.For example, the open date is on December 14th, 2005, and application number is the electronic equipment of the disclosed a kind of maskable electromagnetic interference of 200410027692 Chinese patent application.This device comprises a metal shell and is installed on its interior printed circuit board (PCB) that the metal shell outside of described electronic equipment also has a plastic shell.The corresponding described printed circuit board (PCB) of described metal shell inwall does not have electronic component distribution place and is provided with at least one metal projection or metal salient point, described printed circuit board (PCB) is close described metal shell place in its edge, and corresponding described metal projection place is provided with some ground pads, can realize electrically conducting between metal shell and ground plane of printed circuit board after crossing tin, reach the effect of shield electromagnetic interference.
Yet metal shell strengthens production cost as the screen of screening arrangement, is easy to generate modification in various degree when metal shell is subjected to external force simultaneously, causes the electromagnetic interference shield deleterious.
Summary of the invention
The object of the present invention is to provide a kind of electromagnetic interference shielding device, it forms the screen of electromagnetic interference by the printing conductive material.Described electromagnetic interference shielding device, it includes an insulation shell, and described insulation shell is provided with a plurality of ground pads, connects by the printing conductive material between the described ground pad.When described insulation shell cover cap is on an external printed circuit board, be electrically connected by an electric conductor between the corresponding ground pad on the described ground pad of insulation shell and the printed circuit board (PCB).
But the present invention also aims to provide a kind of electronic equipment of electromagnetic interference shield, it includes an electromagnetic interference shielding device and a printed circuit board (PCB), this electromagnetic interference shielding device includes an insulation shell, and this printed circuit board (PCB) is provided with a plurality of ground pads.Described this insulation shell is provided with a plurality of ground pads, connect by the printing conductive material between the described ground pad, when described insulation shell cover cap is on described printed circuit board (PCB), be electrically connected by an electric conductor between the corresponding ground pad on the described ground pad on the described insulation shell and the described printed circuit board (PCB).
The present invention's advantage is, the electronic equipment of described electromagnetic interference shielding device and application thereof, by the printing conductive material being printed on the housing that soft insulating material makes, when described insulation shell cover cap is on an external printed circuit board, by electric conductor described printing conductive material is electrically connected with ground pad on the described printed circuit board (PCB), reaches the effect of the electromagnetic interference of shielded printed circuit board.This mode can be saved great amount of cost, and uses flexible.
Description of drawings
Fig. 1 is applied to the schematic diagram of an execution mode of an electronic equipment for electromagnetic interference shielding device of the present invention.
Fig. 2 is the three-dimensional exploded view of electromagnetic interference shielding device one execution mode of the present invention.
Fig. 3 is the schematic diagram of a printed circuit board (PCB) of the electronic equipment of electromagnetic interference shielding device of the present invention and application thereof.
Embodiment
See also Fig. 1 to Fig. 2, Fig. 1 is applied to the schematic diagram of an execution mode of an electronic equipment for electromagnetic interference shielding device of the present invention.Fig. 2 is the three-dimensional exploded view of electromagnetic interference shielding device one execution mode of the present invention.This electromagnetic interference shielding device 10 is used for the printed circuit board (PCB) 20 of cover cap at electronic equipment 100, and the electromagnetic interference of printed circuit board (PCB) 20 is played shielding action.Described electronic equipment 100 can be various electronic equipments such as mobile phone, music player, desktop computer, notebook computer, other elements of this electronic equipment 100 can have different layouts according to electronic device types, be not feature of the present invention, therefore in invention, be not added on detailed description.Described printed circuit board (PCB) 20 is provided with some ground pads 210 (consulting shown in Figure 3) at its no element region.It includes an insulation shell 3 this electromagnetic interference shielding device 10, and described insulation shell 3 forms for utilizing soft insulating material to make according to the shape of the printed circuit board (PCB) of institute's cover cap.Insulation shell 3 is provided with a plurality of ground pads 4, and each ground pad 4 is corresponding with the ground pad 210 on the described printed circuit board (PCB) in the position on the insulation shell 3, and electrically connects by an electric conductor.Connect successively by printing conductive material 1 between each ground pad 4 on the insulation shell 3.Corresponding to the distribution of the electronic component on the printed circuit board (PCB), this conductive materials 1 is printed in the upper surface or the lower surface of insulation shell 3, perhaps is printed in two surfaces up and down of housing 3 simultaneously, to strengthen shield effectiveness.The printing shape of described printing conductive material 1 can be printed as corresponding shape according to the distribution of electronic component on the described printed circuit board (PCB).Printing conductive material 1 can adopt electric conducting materials such as graphite to realize.
When insulation shell 3 cover caps of described electromagnetic interference shielding device 10 are on a printed circuit board (PCB) 20, described electric conductor is filled in ground pad 210 corresponding on the ground pad 4 of described insulation shell 3 and the printed circuit board (PCB) 20, make that corresponding ground pad 210 is electrically connected by electric conductor on ground pad 4 and the printed circuit board (PCB) 20 of insulation shell 3.Described electric conductor can be a column 2.In order to stop printed circuit board (PCB) 20 to produce displacement, this electric conductor also can be fixtures such as screw 5.Described electric conductor adopts the good conductor of electricity such as silver, chromium to constitute, after crossing tin described printing conductive material 1 is electrically connected with the ground pad 210 of printed circuit board (PCB) 20, printing conductive material 1 on the described insulation shell 3, electric conductor, ground pad 4 form an electro-magnetic screen layer, reach the effect of the electromagnetic interference of the electronic component generation on the shielded printed circuit board 20.
Claims (10)
1. electromagnetic interference shielding device, it includes an insulation shell, it is characterized in that, this insulation shell is provided with a plurality of ground pads, connect by the printing conductive material between the described ground pad, when described insulation shell cover cap is on an external printed circuit board, be electrically connected by an electric conductor between the corresponding ground pad on the described ground pad of insulation shell and the printed circuit board (PCB).
2. as claim item 1 described electromagnetic interference shielding device, it is characterized in that described printing conductive material is printed on two surfaces of housing simultaneously.
3. as claim item 2 described electromagnetic interference shielding devices, it is characterized in that the shape of described printing conductive material is printed as corresponding shape according to the distributing position of electronic component on the circuit board.
As claim item 4 state electromagnetic interference shielding device, it is characterized in that described electric conductor is made of the good conductor of electricity.
5. as claim item 1 described electromagnetic interference shielding device, it is characterized in that described housing is formed by soft insulating material.
6. as claim item 1 described electromagnetic interference shielding device, it is characterized in that described electric conductor is a screw.
7. but the electronic equipment of an electromagnetic interference shield, it includes an electromagnetic interference shielding device and a printed circuit board (PCB), this electromagnetic interference shielding device includes an insulation shell, this printed circuit board (PCB) is provided with a plurality of ground pads, it is characterized in that, this insulation shell is provided with a plurality of ground pads, connect by the printing conductive material between the described ground pad, when described insulation shell cover cap is on described printed circuit board (PCB), be electrically connected by an electric conductor between the corresponding ground pad on the described ground pad on the described insulation shell and the described printed circuit board (PCB).
8. but as the electronic equipment of electromagnetic interference shield as described in the claim item 7, it is characterized in that described printing conductive material is printed on two surfaces of housing simultaneously.
9. but as the electronic equipment of claim item 8 described electromagnetic interference shields, it is characterized in that the shape of described printing conductive material is printed as corresponding shape according to the distributing position of electronic component on the circuit board.
10. but as the electronic equipment of claim item 7 described electromagnetic interference shields, it is characterized in that described electric conductor is a screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006100631574A CN101166410A (en) | 2006-10-18 | 2006-10-18 | Electromagnetic interference shielding device and its applied electronic device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006100631574A CN101166410A (en) | 2006-10-18 | 2006-10-18 | Electromagnetic interference shielding device and its applied electronic device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101166410A true CN101166410A (en) | 2008-04-23 |
Family
ID=39334796
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2006100631574A Pending CN101166410A (en) | 2006-10-18 | 2006-10-18 | Electromagnetic interference shielding device and its applied electronic device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101166410A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103559836A (en) * | 2013-11-19 | 2014-02-05 | 京东方科技集团股份有限公司 | Vehicle-mounted display terminal and system |
| CN104423465A (en) * | 2013-08-19 | 2015-03-18 | 鸿富锦精密工业(武汉)有限公司 | Data storage equipment fixing device |
| CN105519240A (en) * | 2015-06-29 | 2016-04-20 | 深圳市柔宇科技有限公司 | Circuit board structure and electronic equipment |
| CN107396621A (en) * | 2016-04-05 | 2017-11-24 | 哈曼国际工业有限公司 | Electromagnetic shield for electronic installation |
| CN107591068A (en) * | 2016-07-06 | 2018-01-16 | 上海数好数字信息科技有限公司 | Circuit for teaching experiment builds module |
| CN109727957A (en) * | 2017-10-30 | 2019-05-07 | 莱尔德电子材料(深圳)有限公司 | Heat management and electromagnetic interference mitigate component and its application method, the device including the component |
| CN113707202A (en) * | 2021-08-30 | 2021-11-26 | 中科美嘉半导体(北京)有限公司 | Solid state disk structure |
-
2006
- 2006-10-18 CN CNA2006100631574A patent/CN101166410A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104423465A (en) * | 2013-08-19 | 2015-03-18 | 鸿富锦精密工业(武汉)有限公司 | Data storage equipment fixing device |
| CN103559836A (en) * | 2013-11-19 | 2014-02-05 | 京东方科技集团股份有限公司 | Vehicle-mounted display terminal and system |
| CN105519240A (en) * | 2015-06-29 | 2016-04-20 | 深圳市柔宇科技有限公司 | Circuit board structure and electronic equipment |
| WO2017000110A1 (en) * | 2015-06-29 | 2017-01-05 | 深圳市柔宇科技有限公司 | Circuit board structure and electronic device |
| CN105519240B (en) * | 2015-06-29 | 2019-12-27 | 深圳市柔宇科技有限公司 | Circuit board structure and electronic equipment |
| CN107396621A (en) * | 2016-04-05 | 2017-11-24 | 哈曼国际工业有限公司 | Electromagnetic shield for electronic installation |
| CN107591068A (en) * | 2016-07-06 | 2018-01-16 | 上海数好数字信息科技有限公司 | Circuit for teaching experiment builds module |
| CN109727957A (en) * | 2017-10-30 | 2019-05-07 | 莱尔德电子材料(深圳)有限公司 | Heat management and electromagnetic interference mitigate component and its application method, the device including the component |
| CN109727957B (en) * | 2017-10-30 | 2023-11-24 | 莱尔德电子材料(深圳)有限公司 | Thermal management and electromagnetic interference mitigation assembly, methods of use thereof, and devices including the same |
| CN113707202A (en) * | 2021-08-30 | 2021-11-26 | 中科美嘉半导体(北京)有限公司 | Solid state disk structure |
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| 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 |
Application publication date: 20080423 |