CN202059725U - Electromagnetic compatibility (EMC) shielding device - Google Patents
Electromagnetic compatibility (EMC) shielding device Download PDFInfo
- Publication number
- CN202059725U CN202059725U CN2011201492306U CN201120149230U CN202059725U CN 202059725 U CN202059725 U CN 202059725U CN 2011201492306 U CN2011201492306 U CN 2011201492306U CN 201120149230 U CN201120149230 U CN 201120149230U CN 202059725 U CN202059725 U CN 202059725U
- Authority
- CN
- China
- Prior art keywords
- circuit board
- shielding strip
- emc
- holding wire
- screening arrangement
- 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.)
- Expired - Fee Related
Links
- 238000012216 screening Methods 0.000 claims description 17
- 230000005670 electromagnetic radiation Effects 0.000 description 11
- 239000004020 conductor Substances 0.000 description 2
- 230000005684 electric field Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
Abstract
The utility model discloses an electromagnetic compatibility (EMC) shielding device, which aims at providing a shielding device with the advantages that the structure is simple, the cost is low, and the occupied area is small. The EMC shielding device comprises a circuit board, a device and a signal wire, wherein the device is arranged on the circuit board, the signal wire is connected with the device, a conductive shielding strip is arranged above the signal wire, the shielding strip consists of a first surface, a second surface and a third surface, the first surface and the second surface are opposite, the third surface is connected with the upper end of the first surface and the upper end of the second surface, and in addition, the first surface and the second surface are fixed on the circuit board. The EMC shielding device can be used for shielding various circuit board signal wires.
Description
Technical field
The utility model relates to the shielding of electronic product, especially relates to the EMC screening arrangement of holding wire on a kind of circuit board.
Background technology
Now electronic product generally uses the way that adds shielding box for solving electromagnetic radiation, just producing the electromagnetic radiation position, use box-like electric conducting material, as metal etc., is closed also ground connection.
Since need be totally-enclosed the position that produces electromagnetic radiation, the electronic product complex structure caused, and cost is higher; And in order not stay the slit, shielding box needs the edge need be close to circuit board, and it is bigger to take board area, and circuit board row plate is also inconvenient.
The utility model content
The utility model for solve the prior art electronic product use add shielding box cause electronic product complex structure, cost higher, take the bigger technical problem of board area, a kind of EMC screening arrangement is provided.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is a kind of EMC screening arrangement of design, comprise circuit board, be arranged on components and parts and the holding wire that is connected components and parts on the circuit board, the top of described holding wire is provided with the shielding strip of a conduction, described shielding strip by relative first with second and be connected described first upper end and second upper end the 3rd and constitute, and described first be fixed on the described circuit board with second face.
The 3rd trend of described shielding strip is parallel with the direction of routing of described holding wire.
First, second of described shielding strip and the 3rd cross section are the square of an end opening.
First, second and the 3rd cross section semicircular in shape of described shielding strip.
First of described shielding strip and second 's lower end is provided with the leg of ground connection, and described leg is weldingly fixed on the circuit board.
Described EMCEMC screening arrangement is provided with ground plane in corresponding described holding wire position, the back side of described circuit board.
Described shielding strip is a bonding jumper.
The utility model is by being provided with the shielding strip of conduction above holding wire, the electric field major part that makes the holding wire generation be positioned at the holding wire top is shielded by A, outwards do not disperse, effectively suppressed the electromagnetic radiation of holding wire top, simultaneously, because what use is shielding strip, be not full-closed structure and only be located at holding wire top, simple in structure, cost is low, it is little to take circuit board space, and circuit board is set type conveniently.
Description of drawings
Below in conjunction with embodiment and accompanying drawing the utility model is elaborated, wherein:
Fig. 1 is the structural representation of the utility model EMC screening arrangement;
Fig. 2 is the generalized section of the utility model EMC screening arrangement.
[0014] embodiment
See also Fig. 1 and Fig. 2, the utility model EMC screening arrangement comprises circuit board 1, be arranged on components and parts 2 on the circuit board, connect components and parts holding wire 3, be located at holding wire 3 tops conduction shielding strip 4 and be located at the ground plane 5 of back of circuit board.Wherein:
Shielding strip 4 by relative first 41 with second 42 and be connected described first upper end and second upper end the 3rd 43 and constitute, and described first be fixed on the described circuit board with second face.First 41 lower end of shielding strip and second 42 lower end are provided with the leg 44 of ground connection, and described leg is weldingly fixed on the circuit board.When playing fixation, also rises leg 44 shielding strip ground connection.Certainly, shielding strip also can not adopt the leg welding fixing, and other modes such as employing screw are fixed.Parallel with the direction of routing of described holding wire or be similar to parallelly when the 3rd trend of shielding strip, when promptly first and second face were positioned at the two ends of holding wire, the effect that suppresses electromagnetic radiation was best.In this specific embodiment, first, second of described shielding strip and the 3rd cross section are the square of an end opening, certainly, but also semicircular in shape etc. of first, second of shielding strip and the 3rd 's cross section.Shielding strip can be bonding jumper, also can be other electric conducting materials and makes.
Ground plane 5 is arranged on the corresponding described holding wire position, the back side of circuit board, is used to suppress the electromagnetic radiation of holding wire equally.
When components and parts pass through the signal wire transmits high speed signal, the as easy as rolling off a log generation electromagnetic radiation of holding wire, suppress the electromagnetic radiation of holding wire below by the ground plane of holding wire below, suppress the electromagnetic radiation of holding wire top by the shielding strip of holding wire top, the electric field major part that holding wire is produced is limited between ground plane and the shielding strip, outwards do not disperse, effectively suppressed the electromagnetic radiation on the holding wire.
The utility model EMC screening arrangement can effectively reduce the electromagnetic radiation of circuit board, and is simple in structure, easy for installation, and cost is low, takies seldom board area.
The above only is preferred embodiment of the present utility model; not in order to restriction the utility model; all any modifications of within spirit of the present utility model and principle, being done, be equal to and replace and improvement etc., all should be included within the protection range of the present utility model.
Claims (7)
1. EMC screening arrangement, comprise circuit board, be arranged on components and parts and the holding wire that is connected components and parts on the circuit board, it is characterized in that: the top of described holding wire is provided with the shielding strip of a conduction, described shielding strip by relative first with second and be connected described first upper end and second upper end the 3rd and constitute, and described first be fixed on the described circuit board with second face.
2. EMC screening arrangement according to claim 1 is characterized in that: the 3rd trend of described shielding strip is parallel with the direction of routing of described holding wire.
3. EMC screening arrangement according to claim 1 is characterized in that: first, second of described shielding strip and the 3rd cross section are the square of an end opening.
4. EMC screening arrangement according to claim 1 is characterized in that: first, second and the 3rd cross section semicircular in shape of described shielding strip.
5. EMC screening arrangement according to claim 1 is characterized in that: first of described shielding strip and second 's lower end is provided with the leg of ground connection, and described leg is weldingly fixed on the circuit board.
6. EMC screening arrangement according to claim 1 is characterized in that: described EMC screening arrangement is provided with ground plane in corresponding described holding wire position, the back side of described circuit board.
7. EMC screening arrangement according to claim 1 is characterized in that: described shielding strip is a bonding jumper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201492306U CN202059725U (en) | 2011-05-12 | 2011-05-12 | Electromagnetic compatibility (EMC) shielding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201492306U CN202059725U (en) | 2011-05-12 | 2011-05-12 | Electromagnetic compatibility (EMC) shielding device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202059725U true CN202059725U (en) | 2011-11-30 |
Family
ID=45019687
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201492306U Expired - Fee Related CN202059725U (en) | 2011-05-12 | 2011-05-12 | Electromagnetic compatibility (EMC) shielding device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202059725U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107484405A (en) * | 2017-09-27 | 2017-12-15 | 广东欧珀移动通信有限公司 | Mobile terminal and its circuit board assemblies |
| CN107659680A (en) * | 2017-09-25 | 2018-02-02 | 广东欧珀移动通信有限公司 | Circuit board assemblies and its radome, mobile terminal |
| CN108933974A (en) * | 2017-05-24 | 2018-12-04 | 北京小米移动软件有限公司 | Eliminate the device and mobile device of microphone interference |
| CN113383498A (en) * | 2019-02-01 | 2021-09-10 | 株式会社Kmw | Wireless communication device |
-
2011
- 2011-05-12 CN CN2011201492306U patent/CN202059725U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108933974A (en) * | 2017-05-24 | 2018-12-04 | 北京小米移动软件有限公司 | Eliminate the device and mobile device of microphone interference |
| CN107659680A (en) * | 2017-09-25 | 2018-02-02 | 广东欧珀移动通信有限公司 | Circuit board assemblies and its radome, mobile terminal |
| CN107484405A (en) * | 2017-09-27 | 2017-12-15 | 广东欧珀移动通信有限公司 | Mobile terminal and its circuit board assemblies |
| CN113383498A (en) * | 2019-02-01 | 2021-09-10 | 株式会社Kmw | Wireless communication device |
| US11855344B2 (en) | 2019-02-01 | 2023-12-26 | Kmw Inc. | Wireless communication device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111130 Termination date: 20160512 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |