CN102821537A - Printed circuit board with shielding case - Google Patents
Printed circuit board with shielding case Download PDFInfo
- Publication number
- CN102821537A CN102821537A CN 201210260455 CN201210260455A CN102821537A CN 102821537 A CN102821537 A CN 102821537A CN 201210260455 CN201210260455 CN 201210260455 CN 201210260455 A CN201210260455 A CN 201210260455A CN 102821537 A CN102821537 A CN 102821537A
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- CN
- China
- Prior art keywords
- circuit board
- printed circuit
- radome
- shielding
- substrate
- 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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Abstract
The invention aims to provide a printed circuit board with a shielding case, and the printed circuit board is capable of reducing electromagnetic interference. The printed circuit board with the shielding case comprises a substrate, wherein the substrate is provided with a ground layer and a signal layer. The printed circuit board with the shielding case is characterized in that the substrate is provided with one or a plurality of shielding cases made of metal; the shielding cases are electrically connected with the ground layer. Because the shielding cases are electrically connected with the ground layer, the potential of the shielding cases is same with that of the ground layer; various types of electromagnetic interference signals generated by elements in the shielding cases can be subjected to shielding case shielding in the process of outwards transmitting along the substrate, so that electromagnetic interference on the outside by the printed circuit board is reduced; and meanwhile, because of the action of the shielding cases, influence of an outside electromagnetic field on the elements in the shielding cases can be reduced.
Description
Technical field
The invention belongs to electronic technology field, specially refer to a kind of printed circuit board (PCB) with radome.
Background technology
Along with development of electronic technology, the frequency of electronic signal is increasingly high, and this just makes that electromagnetic interference is also more and more serious.And electronic component and cabling are intensive in the printed circuit board (PCB), are the districts occurred frequently of electromagnetic interference, therefore how to limit the electromagnetic interference in the printed circuit board (PCB), have become Electronics Engineer's urgent problem.
Summary of the invention
The objective of the invention is to propose a kind of printed circuit board (PCB) with radome that can reduce electromagnetic interference.
Printed circuit board (PCB) with radome of the present invention comprises substrate, and said substrate is provided with ground plane and signals layer, and key is one or more metal radomes are installed on the said substrate, and said radome is electrically connected with ground plane.
Above-mentioned radome is electrically connected with ground plane; The current potential of radome is just identical with ground plane like this; The various electromagnetic interference signals that element produced in the radome can run into the shielding of radome, thereby can reduce printed circuit board (PCB) electromagnetic interference to external world in the process of outwards propagating along substrate; Simultaneously because the effect of radome can also reduce the influence of the suffered external electromagnetic field of the interior element of radome.
Further, said substrate is provided with a plurality of and the through hole ground plane conducting, and the bottom of said radome is provided with metal clips, and said metal clips is connected in the through hole, so that radome is electrically connected with ground plane.The installation of radome will be very convenient like this, can also take off at any time simultaneously, is convenient in the circuit development process, circuit debugged.
Further, said radome is processed by expanded metal sheet, and is easy to process, and shield effectiveness is good.
Printed circuit board (PCB) with radome of the present invention can effectively reduce electromagnetic interference and leak, and can also reduce the interference of outer its internal signal of bound pair simultaneously, has good practicability.
Description of drawings
Fig. 1 is the structural representation with printed circuit board (PCB) of radome of the present invention.
Embodiment
Contrast accompanying drawing below; Through the description to embodiment, the effect of mutual alignment between the shape of specific embodiments of the invention such as related each member, structure, the each several part and annexation, each several part and operation principle etc. are done further to specify.
Embodiment 1:
As shown in Figure 1, the printed circuit board (PCB) with radome of present embodiment comprises substrate 1, and the bottom of substrate is a ground plane 2, and top layer is a signals layer 3, and a radome 4 of being processed by expanded metal sheet is installed on the substrate 1; Substrate 1 is provided with a plurality of and through holes 5 ground plane 2 conductings, and the bottom of radome 4 is provided with metal clips 6, and metal clips 6 is connected in the through hole 5, so that radome 4 is electrically connected with ground plane 2.
Above-mentioned radome 4 is electrically connected with ground plane 2; The current potential of radome 4 is just identical with ground plane 2 like this; The various electromagnetic interference signals that element produced in the radome 4 are in the process of outwards propagating along substrate 1; The shielding of radome 4 can be run into, thereby printed circuit board (PCB) electromagnetic interference to external world can be reduced; Simultaneously because the effect of radome 4, can also reduce the influence of the suffered external electromagnetic field of element in the radome 4.In addition, the installation of radome 4 is very convenient, can also take off at any time simultaneously, is convenient in the circuit development process, circuit debugged.
Claims (3)
1. the printed circuit board (PCB) with radome comprises substrate, and said substrate is provided with ground plane and signals layer, it is characterized in that one or more metal radomes are installed on the said substrate, and said radome is electrically connected with ground plane.
2. the printed circuit board (PCB) with radome according to claim 1; It is characterized in that said substrate is provided with a plurality of and the through hole ground plane conducting; The bottom of said radome is provided with metal clips, and said metal clips is connected in the through hole, so that radome is electrically connected with ground plane.
3. the printed circuit board (PCB) with radome according to claim 1 and 2 is characterized in that said radome processed by expanded metal sheet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210260455 CN102821537A (en) | 2012-07-26 | 2012-07-26 | Printed circuit board with shielding case |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210260455 CN102821537A (en) | 2012-07-26 | 2012-07-26 | Printed circuit board with shielding case |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102821537A true CN102821537A (en) | 2012-12-12 |
Family
ID=47305299
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201210260455 Pending CN102821537A (en) | 2012-07-26 | 2012-07-26 | Printed circuit board with shielding case |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102821537A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104144598A (en) * | 2013-05-08 | 2014-11-12 | 鸿富锦精密工业（深圳）有限公司 | Shielding case and circuit board fixing structure |
| CN109116695A (en) * | 2017-06-22 | 2019-01-01 | 京瓷办公信息系统株式会社 | Image processing apparatus |
| CN110446411A (en) * | 2019-08-08 | 2019-11-12 | 浙江通达磁业有限公司 | Shield magnetic cover |
| WO2022226711A1 (en) * | 2021-04-26 | 2022-11-03 | Honeywell International Inc. | Building controller with lateral side shielding |
-
2012
- 2012-07-26 CN CN 201210260455 patent/CN102821537A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104144598A (en) * | 2013-05-08 | 2014-11-12 | 鸿富锦精密工业（深圳）有限公司 | Shielding case and circuit board fixing structure |
| CN104144598B (en) * | 2013-05-08 | 2018-02-02 | 鸿富锦精密工业（深圳）有限公司 | Radome and circuit board fixation structure |
| CN109116695A (en) * | 2017-06-22 | 2019-01-01 | 京瓷办公信息系统株式会社 | Image processing apparatus |
| CN110446411A (en) * | 2019-08-08 | 2019-11-12 | 浙江通达磁业有限公司 | Shield magnetic cover |
| CN110446411B (en) * | 2019-08-08 | 2021-01-29 | 浙江通达磁业有限公司 | Shielding magnetic cover |
| WO2022226711A1 (en) * | 2021-04-26 | 2022-11-03 | Honeywell International Inc. | Building controller with lateral side shielding |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20121212 |