CN201119257Y - Shielding cover for printed circuit board - Google Patents
Shielding cover for printed circuit board Download PDFInfo
- Publication number
- CN201119257Y CN201119257Y CNU2007203055143U CN200720305514U CN201119257Y CN 201119257 Y CN201119257 Y CN 201119257Y CN U2007203055143 U CNU2007203055143 U CN U2007203055143U CN 200720305514 U CN200720305514 U CN 200720305514U CN 201119257 Y CN201119257 Y CN 201119257Y
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- CN
- China
- Prior art keywords
- circuit board
- printed circuit
- pcb
- radome
- metal decking
- 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
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- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
Abstract
The utility model discloses a shielding cover of a printed circuit board, which relates to a shielding cover for shielding the electromagnetic radiation generated in the shielding printed circuit board. The utility model solves the problem that the cost of the prior shielding cover is relatively higher. The shielding cover of the printed circuit board comprises a metal panel, and a positioning pin is arranged on the metal panel, which bulges out the metal panel. The metal panel is fixed on the printed circuit board through the positioning pin, and only required to be fixed on one surface of the printed circuit board provided with an electronic part, electromagnetic waves radiated outward by the electronic equipments are shielded, and compared with the way that a cavity body is adopted to perform shielding, the shielding cover has the advantages that lots of metal materials are saved and the cost is reduced. The shielding cover is mainly applied to the printed circuit board of various electronic equipments.
Description
Technical field
The utility model relates to electronic circuit field, particularly the radome of the electromagnetic radiation that produces on the shielded printed circuit board.
Background technology
Printed circuit board (PCB) (PCB, Printed circuit board) almost can appear in each electronic equipment, and the electronic component in the electronic equipment generally all is to be set on the PCB of different sizes.The electronic component, PCB another one major function is to provide mutual being electrically connected for the part on it in fixing each.Along with electronic equipment becomes increasingly complex, the electronic component that needs is more and more, and circuit and part on the PCB are also more and more intensive.
Electronic component on the PCB can produce some electromagnetic radiation more or less, in order to guarantee that the signal in each layer line road of pcb board can be by the electromagnetic interference that electronic component produced, all increase screen on a lot of PCB, made the electromagnetic radiation that electronic component produced can not be radiated the PCB internal layer.But when an electronic equipment had plural PCB, the electromagnetic radiation that electronic component produced on a certain PCB can interfere with the electronic component on the other pcb board, makes its cisco unity malfunction.
For example: generally comprise hardboard in LCD inside, be mainly backlight high voltage source is provided; Also comprise mainboard, be mainly used to handle picture signal, being converted into liquid crystal display screen can the data presented form.Wherein the electromagnetic radiation of hardboard is bigger, can have influence on the work of the electronic component on the mainboard, can not the normal process picture signal, thus the image that influences LCDs shows.
In order to guarantee that the electronic component in the electronic equipment can both operate as normal, when when electronic equipment internal has a plurality of pcb board, the producer that has will be spaced a distance between two PCB, and this mode can not be eliminated electromagnetic interference fully; Also having a kind of method is that radome is set on pcb board, to prevent electromagnetic interference.In the patent No. is 200620055803.8 Chinese patent, a kind of shielding construction of circuit board is disclosed, mainly adopted cavity body structure, be provided with guide shaft fixing unit at the upper and lower two wallboard inner surfaces of cavity, help printed circuit board (PCB) and insert or extract out.
Above-mentioned shielding construction is wrapped in whole pcb board in the cavity, then cavity is fixed in the electronic equipment, but in fact PCB is generally only at an arranging electronic part, and what can produce radiation also has only the one side of having arranged electronic component.So the shielding construction of this cavity body structure is used on the pcb board, can cause the waste of material of shielding construction, cost is higher.And this structure causes the pcb board that is installed at last on the electronic equipment thicker, does not meet the requirement of present electronic equipment microminaturization.
The utility model content
The utility model provides the radome of the lower printed circuit board (PCB) of a kind of production cost.
For achieving the above object, the utility model adopts following technical scheme: the radome of this printed circuit board (PCB), comprise metal decking, and on described metal decking, be provided with angle, described angle protrudes from described metal decking.
Described angle comprises the vertical plate that stretches out in metal decking, and the transverse slat that is connected the vertical plate end, and this transverse slat is provided with location hole.
Fixing hole on described location hole and the printed circuit board (PCB) is corresponding to be provided with.
Described metal decking is provided with at least 3 angles, and vertical plate on the angle and transverse slat composition
Shape or
Shape.
Described angle is a grab, and the direction of grab is opposite.
Fixing hole on described grab and the printed circuit board (PCB) is corresponding to be provided with.
Be provided with sidewall around the described metal decking, described sidewall and described angle are arranged on the same one side of metal decking.
Described metal decking and sidewall are provided with louvre.
One of them sidewall on the described metal decking is provided with at least one cabling mouth.
The end of described sidewall is provided with contact plate, and this contact plate is resisted against on the printed circuit board (PCB).
Radome by the described printed circuit board (PCB) of technique scheme, angle is set on metal decking, by angle metal decking is fixed on the printed circuit board (PCB), and only need be fixed to the one side that is provided with electronic component of printed circuit board (PCB), just electronic equipment can be fallen to extraradial electromagnetic wave shielding, and then not influence the operate as normal of the electronic component on other PCB.Because what the radome of above-mentioned printed circuit board (PCB) adopted is the metallic plate of single face, for the mode of available technology adopting cavity shields, saved a large amount of metal materials, reduced the cost of the radome of printed circuit board (PCB); Simultaneously, owing to only radome need be arranged on the one side of printed circuit board (PCB), can relatively meet present lightening requirement so that printed circuit board (PCB) is thinner like this to electronic equipment.
Description of drawings
Fig. 1 is the structure chart of the radome of the utility model printed circuit board (PCB);
Fig. 2 is the structural representation of angle in the radome of the utility model printed circuit board (PCB);
Fig. 3 is a side wall construction schematic diagram in the radome of the utility model printed circuit board (PCB).
Embodiment
The utility model is provided with angle on a metal decking, metal decking can be fixed on the printed circuit board (PCB) by angle, thereby can mask the electromagnetic radiation of electronic component.Be described in detail below in conjunction with the radome of accompanying drawing the utility model printed circuit board (PCB).
As shown in Figure 1, the radome of this printed circuit board (PCB) comprises metal decking 1, be provided with angle 4 on described metal decking 1, this metal decking 1 can be fixed on the printed circuit board (PCB) by the angle on it 4, thereby the radiation of electronic component is played the effect of shielding.Can not cause extruding to electronic component after making radome be fixed on the printed circuit board (PCB), the angle 4 in the utility model protrudes from described metal decking 1, and its height will be higher than the height that electronic component protrudes from printed circuit board (PCB); And be provided with sidewall 2 around metal decking, described sidewall 2 and described angle 4 are arranged on the same one side of metal decking 1, and sidewall 2 and angle 4 just can support metal decking 1 simultaneously like this.The end of above-mentioned sidewall 2 is provided with contact plate 9 (as shown in Figure 3), and this contact plate 9 is resisted against on the printed circuit board (PCB), thereby can more stably support metal decking 1.On one of them sidewall on the metal decking 1, be provided with at least one cabling mouth 3, so that signal is input to printed circuit board (PCB).
Can Yin Wendu not too high and influence work in order to guarantee electronic component on the printed circuit board (PCB), described metal decking 1 and sidewall 2 be provided with louvre 5, so that discharge the heat that electronic component gives out.
Angle in the utility model can have multiple different implementation, and is wherein as shown in Figure 2 a kind of, and this angle 4 comprises the vertical plate 6 that stretches out in metal decking, and the transverse slat 7 that is connected vertical plate 6 ends, and this transverse slat 7 is provided with location hole 8.When passing location hole 8, angle can be fixed on the printed circuit board (PCB) in the respective threads hole with screw.When location hole 8 can be provided with the fixing hole correspondence on the printed circuit board (PCB), so just can simultaneously the location hole and the fixing hole on the printed circuit board (PCB) of radome be fixed on the frame with a screw, save the use amount of screw, also can on circuit board, bore a hole less, saved cost.Comparatively firm in order to make that this radome is fixed, on described metal decking, be provided with at least 3 angles, can form a plane more stably by the angle more than three and three, and vertical plate on the angle 6 and transverse slat 7 compositions
Shape or
Shape, angle just has different directions like this, thereby makes radome can not rock along the surface direction of metal decking, has guaranteed the stability after whole radome is installed.Certainly, above-mentioned angle can also be grab, and the direction of grab is opposite, to form more stable installation, and grab also can so just can directly pass grab the fixing hole of printed circuit board (PCB) according to the fixing hole setting corresponding to printed circuit board (PCB), is fixed on the frame then, saved the screw that fixed printed circuit board is used, to reduce cost.
The radome of the utility model printed circuit board (PCB) only need be fixed to the one side that is provided with electronic component of printed circuit board (PCB), just electronic equipment can be fallen to extraradial electromagnetic wave shielding, and then do not influence the operate as normal of the electronic component on other PCB, for the mode of available technology adopting cavity shields, save a large amount of metal materials, reduced the cost of the radome of printed circuit board (PCB); Simultaneously, owing to only radome need be arranged on the one side of printed circuit board (PCB), can relatively meet present lightening requirement so that printed circuit board (PCB) is thinner like this to electronic equipment.
The utility model mainly is used on the printed circuit board (PCB) of various electronic equipments, for example: after on the hardboard of LCD the utility model being installed, the electromagnetic radiation that hardboard produces will be shielded in the radome of this printed circuit, and shield effectiveness is better, can not have influence on the operate as normal of LCD mainboard, guarantee the normal display effect of LCD.
When production of liquid crystal displays, generally some lower-cost display screen all can have the big and shield effectiveness defect of bad of electromagnetic radiation, in these lower-cost display screens, install the utility model after, can shield electromagnetic radiation preferably.So if when actual production, after adopting the assembling of lower-cost display screen and the utility model, can realize the radioresistance effect that other display screens are the same, but its total cost is lower than other display screens of direct purchase, thereby has reduced the cost of production LCDs.
The above; it only is embodiment of the present utility model; but protection range of the present utility model is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; can expect easily changing or replacing, all should be encompassed within the protection range of the present utility model.Therefore, protection range of the present utility model should be as the criterion with the protection range of claim.
Claims (10)
1, a kind of radome of printed circuit board (PCB) comprises metal decking, it is characterized in that, is provided with angle on described metal decking, and described angle protrudes from described metal decking.
2, the radome of printed circuit board (PCB) according to claim 1 is characterized in that, described angle comprises the vertical plate that stretches out in metal decking, and the transverse slat that is connected the vertical plate end, and this transverse slat is provided with location hole.
3, the radome of printed circuit board (PCB) according to claim 2 is characterized in that, the fixing hole on described location hole and the printed circuit board (PCB) is corresponding to be provided with.
4, the radome of printed circuit board (PCB) according to claim 2 is characterized in that, described metal decking is provided with at least 3 angles, and vertical plate on the angle and transverse slat composition
Shape or
Shape.
5, the radome of printed circuit board (PCB) according to claim 1 is characterized in that, described angle is a grab, and the direction of grab is opposite.
6, the radome of printed circuit board (PCB) according to claim 5 is characterized in that, the fixing hole on described grab and the printed circuit board (PCB) is corresponding to be provided with.
7, the radome of printed circuit board (PCB) according to claim 1 is characterized in that, is provided with sidewall around the described metal decking, and described sidewall and described angle are arranged on the same one side of metal decking.
8, the radome of printed circuit board (PCB) according to claim 7 is characterized in that, described metal decking and sidewall are provided with louvre.
9, the radome of printed circuit board (PCB) according to claim 7 is characterized in that, one of them sidewall on the described metal decking is provided with at least one cabling mouth.
10, the radome of printed circuit board (PCB) according to claim 7 is characterized in that, the end of described sidewall is provided with contact plate, and this contact plate is resisted against on the printed circuit board (PCB).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007203055143U CN201119257Y (en) | 2007-11-20 | 2007-11-20 | Shielding cover for printed circuit board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007203055143U CN201119257Y (en) | 2007-11-20 | 2007-11-20 | Shielding cover for printed circuit board |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201119257Y true CN201119257Y (en) | 2008-09-17 |
Family
ID=39993869
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007203055143U Expired - Fee Related CN201119257Y (en) | 2007-11-20 | 2007-11-20 | Shielding cover for printed circuit board |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201119257Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107613052A (en) * | 2017-09-27 | 2018-01-19 | 广东欧珀移动通信有限公司 | Mobile terminal and its circuit board assemblies, radome |
| CN108401410A (en) * | 2018-04-11 | 2018-08-14 | 业成科技（成都）有限公司 | Printed circuit board suitable for top shielding case and lower shield cover |
| CN113507813A (en) * | 2021-06-30 | 2021-10-15 | 青岛海信移动通信技术股份有限公司 | Display terminal |
-
2007
- 2007-11-20 CN CNU2007203055143U patent/CN201119257Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107613052A (en) * | 2017-09-27 | 2018-01-19 | 广东欧珀移动通信有限公司 | Mobile terminal and its circuit board assemblies, radome |
| CN107613052B (en) * | 2017-09-27 | 2020-12-18 | Oppo广东移动通信有限公司 | Mobile terminal and circuit board assembly and shielding case thereof |
| CN108401410A (en) * | 2018-04-11 | 2018-08-14 | 业成科技（成都）有限公司 | Printed circuit board suitable for top shielding case and lower shield cover |
| CN108401410B (en) * | 2018-04-11 | 2019-08-06 | 业成科技（成都）有限公司 | Printed circuit board suitable for top shielding case and lower shield cover |
| CN113507813A (en) * | 2021-06-30 | 2021-10-15 | 青岛海信移动通信技术股份有限公司 | Display terminal |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080917 Termination date: 20111120 |