CN2810118Y - Electromagnetic shielding device - Google Patents
Electromagnetic shielding device Download PDFInfo
- Publication number
- CN2810118Y CN2810118Y CN 200520113515 CN200520113515U CN2810118Y CN 2810118 Y CN2810118 Y CN 2810118Y CN 200520113515 CN200520113515 CN 200520113515 CN 200520113515 U CN200520113515 U CN 200520113515U CN 2810118 Y CN2810118 Y CN 2810118Y
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- China
- Prior art keywords
- mounting bar
- electromagnetic
- electromagnetic shielding
- installed surface
- installation portion
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- Expired - Lifetime
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Abstract
The utility model discloses an electromagnetic shielding device which comprises an electromagnetic shielding pad and a mounting bar, wherein the mounting bar comprise a mounting part and is installed on a unit mounting surface of a shielded device through the mounting part, and the electromagnetic shielding pad is sheathed on the mounting bar. The utility model also discloses another electromagnetic shielding device which comprises an electromagnetic shielding pad and a mounting bar, wherein the electromagnetic shielding pad is composed of a plurality of electromagnetic shielding pad sets, and the mounting bar is arranged on the bottom parts of the electromagnetic shielding pad sets and is connected to a unit mounting surface. A part of the mounting bar for mounting the pad and the electromagnetic shielding pad sets arranged on the mounting bar can form an integrally formed structure, and the electromagnetic shielding device of the utility model has the advantages of simple processing technology and low cost.
Description
Technical field
The utility model relates to electromagnetic screen.
Background technology
Electronic equipment generally is made of some unit, but be difficult to reach seamless contact between the adjacent cells, and then formation certain interval, the existence in those gaps makes entire equipment can not become a sealed whole, cause this electronic equipment to be subjected to the interference of extraneous signal easily, and self electromagnetic signal is radiate other equipment of interference.For this reason, electronic equipment can be taked shielding measure usually, and conventional method is at the gap location of the adjacent cells electromagnetic screen of packing into.
See also Fig. 1, it is a kind of common electronic devices structure exemplary plot, and the unit of this equipment is to plug veneer, and adjacent last veneer 11 and following veneer 12 are two and can plug veneer.Between last veneer 11 and the following veneer 12 certain clearance L1 is arranged.For the interference that weakens external electromagnetic signal with weaken the intensity that self electromagnetic signal radiate, the installing electromagnetic screen is to fill gap L 1 on the installed surface of veneer 12 down.
See also Fig. 2, it is the topology example figure of a kind of electromagnetic screen common in the prior art.This electromagnetic screen comprises metal spring leaf 21 and some protruding bridges 22.Metal spring leaf 21 both sides concave, and the middle part is convex.Installed surface 23 upper punches of following veneer 12 are determined the protruding bridge 22 of a row, and the two ends of each protruding bridge 22 link to each other with installed surface 23, between its middle part and the installed surface 23 fixed gap are arranged, and are narrower than the width L3 at protruding middle part with the width L2 at the continuous two ends of installed surface 23.
During installation, metal spring leaf 21 is inserted from those protruding bridge 22 1 ends, the both sides that metal spring leaf 21 concaves promptly are stuck in the space between those protruding bridges 22 and the installed surface 23 so that metal spring leaf 21 by protruding bridge 22 fixings on installed surface 23.
Still be example with Fig. 1, if the electromagnetic screen of said structure is installed in down on the installed surface 23 of veneer 12, because metal spring leaf 21 has certain elasticity, so electromagnetic screen can be filled down the gap L 1 between veneer 12 and the last veneer 11 adaptively.Generally, electronic equipment is made up of some unit, by a plurality of electromagnetic screens are installed, just can reach the effect that whole electric equipment has electromagnetic shielding.
Though this electromagnetic screen can play shielding action preferably,, also there is following defective:
(1) will determine a whole row protruding bridge 22 in installed surface 23 upper punches, processing is difficulty.Particularly, the long and protruding bridge 22 of installed surface 23 is processed more difficult more for a long time.And, in a stamping-out, process protruding bridges 22 all on the installed surface 23, then need corresponding blanking die also bigger, cause production cost bigger thus.
(2), and then influence electromagnetic screen and contact with the good of last veneer 11 because processing technology is limit, and the protruding bridge 22 of stamping-out has certain height, and its vertical space that takies metal spring leaf 21 inside is bigger, causes the compressible amount of metal spring leaf 21 little thus.Such as: the gap L 1 that goes up between veneer 11 and the following veneer 12 can be very not big, be generally 0.5～0.7mm, and the height of metal current reed 21 is generally 1.0～1.5mm, the general height of protruding bridge 22 is 1.0～1.2mm, the compressible amount of metal spring leaf 21 only is 0～0.3mm, for this reason, adopt the electromagnetic screen of said structure can't in gap L 1, be subjected to abundant compression, its with last veneer 11 to contact dynamics less, especially after using through the long period, cause metal spring leaf 21 to contact bad easily with last veneer 11.
The utility model content
The purpose of this utility model is to provide a kind of electromagnetic screen, to solve the too high problem of electromagnetic screen processing cost that exists in the prior art.
For solving the problems of the technologies described above, basic design of the present utility model is: adopt with low cost, the simple mounting bar of processing technology to replace protruding bridge in electromagnetic screen, by this mounting bar electromagnetic shielding liner is fixed on the unit installed surface of conductively-closed equipment.
As first kind of electromagnetic screen realizing that the utility model is conceived substantially, comprise electromagnetic shielding liner and mounting bar, described mounting bar comprises installation portion, and mounting bar is installed on the unit installed surface of conductively-closed equipment by installation portion, and electromagnetic shielding liner is sheathed on described mounting bar.
Some salient points are set on the unit installed surface, and installation portion is the installing hole that is provided with on the mounting bar, and installing hole is riveted on corresponding salient point.
As second kind of electromagnetic screen realizing that the utility model is conceived substantially, comprise some electromagnetic shielding liners and mounting bar, described electromagnetic shielding liner is made of some shielding gasket groups, described mounting bar is arranged on the bottom of some shielding gasket groups, and described mounting bar is connected in the unit installed surface of conductively-closed equipment.
Mounting bar comprises installation portion and cushion part is installed, installation portion is used for being connected with the unit installed surface, cushion part is installed some electromagnetic shielding liner groups are set, each electromagnetic shielding liner group is formed by some pad units serial connections, and described installation portion and installation cushion part alternately occur.
The installation cushion part of mounting bar and the some electromagnetic shielding liner groups that are provided with on it structure that can be formed in one.
Compared with prior art, the utlity model has following advantage:
The disclosed electromagnetic screen of the utility model adopts simple, the lower-cost mounting bar Motionless electromagnetic of processing technology shielding gasket, thereby has reduced the processing cost of electromagnetic screen, makes the with low cost of electromagnetic screen.
Further, because the thin thickness of mounting bar, its vertical space that takies electromagnetic shielding liner inside is few, and then increases the decrement in the gap of electromagnetic shielding liner between adjacent cells, helps good contact of this electromagnetic screen and gap two side units.
Description of drawings
Fig. 1 is a kind of common electronic devices structure exemplary plot;
Fig. 2 is the STRUCTURE DECOMPOSITION exemplary plot of a kind of electromagnetic screen common in the prior art;
Fig. 3 is the STRUCTURE DECOMPOSITION exemplary plot of first kind of electromagnetic screen of the present utility model;
Fig. 4 is the STRUCTURE DECOMPOSITION exemplary plot of second kind of electromagnetic screen of the present utility model.
Embodiment
The utility model is described in further detail below in conjunction with drawings and embodiments.
For more clear with the contrast of prior art, below explanation is an application background of the present utility model with this electronic equipment with polylith single plate structure shown in Figure 1 still.
Fig. 3 is the STRUCTURE DECOMPOSITION exemplary plot of the disclosed first kind of electromagnetic screen of the utility model, and this device comprises metal spring leaf 21 and mounting bar 32.Metal spring leaf 21 is formed by some reeds unit 35 serial connections, and the both sides of reed unit 35 concave, and the middle part is convex, has decrement longitudinally.Mounting bar 32 is a kind of laminated structure, which is provided with installation portion, and mounting bar is connected in the unit installed surface by installation portion.The width of mounting bar 32 is less than the width of metal spring leaf 21 and greater than the width between the both sides that concave.Metal spring leaf 21 is sheathed on mounting bar 32.
The installation portion implementation structure has a lot, usually and the structure on the unit installed surface be corresponding appearance.Such as, some salient points 33 are set on the installed surface 23 of following veneer 12, then installation portion be on the mounting bar 32 be provided with these salient point 33 corresponding installing holes, installing hole is arranged on the main shaft of mounting bar 32, installing hole is riveted on corresponding salient point 33 by the riveted joint mode.Installation portion also can be the some salient points that are provided with on the mounting bar, then descends corresponding installing hole is set on the installed surface of veneer 12.Except salient point and installing hole, installation portion can also be screw, also is provided with corresponding installing hole on the installed surface, and both are fastenedly connected by nut.In a word, as long as mounting bar can be installed together with the unit installed surface of equipment.
During installation, at first mounting bar 32 is riveted on the corresponding salient point 33 of installed surface 23 by the installing hole on it, mounting bar 32 promptly is fixed on the installed surface 23.Because installing hole is arranged on the main shaft place, so have a fixed gap between the both sides of mounting bar 32 and the installed surface 23.Then metal spring leaf 21 is inserted from an end of mounting bar 32, the both sides that metal spring leaf 21 concaves snap in the space between mounting bar 32 and the installed surface 23, and promptly metal spring leaf 21 is sheathed on mounting bar 32, and then metal spring leaf 21 is fixed on the installed surface 23.Metal spring leaf 21 is subjected to veneer 11 compressions, reaches and fills the purpose that goes up the gap L 1 between veneer 11 and the following veneer 12.
The processing technology of mounting bar 32 is simple.Electromagnetic screen cost thereby also corresponding reduction with this mounting bar 32.
In addition, because the thin thickness of mounting bar 32, its vertical space that takies metal spring leaf 21 inside is few, therefore increases the decrement of metal spring leaf 21 in gap L 1, be reinforcement metal reed 21 and the dynamics that contacts of last veneer 11, and then favourable this electromagnetic screen contact with the good of last veneer 11.This is a preferred embodiment of the disclosed first kind of electromagnetic screen of the utility model.
Mounting bar with not only be confined to riveted joint being connected of installed surface, also can adopt modes such as screw connects, bonding, crimping.For example, at the unit installed surface some screws that are used to plug screw are set, installation portion is the installing hole of the correspondence that is provided with on the mounting bar, and mounting bar is connected with the installed surface of unit by screw and the supporting nut that is plugged in its installing hole.Electromagnetic shielding liner also is not limited to metal spring leaf, can also be that other elastomers with conductivity constitute, such as conductive rubber etc.
Fig. 4 is the STRUCTURE DECOMPOSITION exemplary plot of the disclosed second kind of electromagnetic screen of the utility model, and this device comprises metal spring leaf 42 and mounting bar 41.Metal spring leaf 42 is that some reed groups constitute, and each reed group is formed by some reeds unit 46 serial connections.Mounting bar 41 comprises installation portion and reed portion is installed, and reed portion is installed some reed groups are set, and installation portion and installation reed portion alternately occur.
The installation portion implementation structure has a lot, usually and the structure on the unit installed surface be corresponding appearance.Such as, installation portion is the installing hole 44 that is provided with on the mounting bar, and the salient point 33 corresponding with installing hole 44 is set on the installed surface 23 of following veneer 12, installing hole 44 is riveted on salient point 33.Installation portion also can be the some salient points that are provided with on the mounting bar, then descends corresponding installing hole is set on the installed surface of veneer 12.Except salient point and installing hole, installation portion can also be screw, also is provided with corresponding installing hole on the installed surface, and both are fastenedly connected by nut.In a word, as long as mounting bar can be installed together with the unit installed surface of equipment.
During installation, the electromagnetic screen that at first will have said structure is placed on the installed surface 23, and make the installing hole 44 on the mounting bar 41 corresponding with salient point 33 positions on the installed surface 23, and then installing hole 44 being riveted on corresponding salient point 43, electromagnetic screen promptly is fixed in installed surface 23.
The electromagnetic screen of this structure has the advantage of first kind of electromagnetic screen: the one, and processing technology is simple, and is with low cost.Two because the thin thickness of mounting bar 41, its vertical space that takies metal spring leaf 42 inside is few, therefore increase the decrement of metal spring leaf 42 in gap L 1, i.e. the dynamics that contacts of reinforcement metal reed 42 and last veneer 11, and then favourablely contact with the good of last veneer 11 with this electromagnetic screen.
In addition, it also has another advantage: the structure because metal spring leaf 42 in this kind electromagnetic screen and mounting bar 41 can be formed in one, promptly whole electromagnetic screen is equivalent to an installed part.Connect during installation at installed surface 23 and get final product, save metal spring leaf 42 and snap in this operation of space of mounting bar 41 and installed surface 23, and then, can not occur because mounting bar 41 is connected the situation that space between the two is too small, metal spring leaf 42 is difficult to snap in that tension causes with installed surface 23; And electromagnetic shielding liner and mounting bar are made into integration, and can reduce cost.This is a preferred embodiment of the disclosed second kind of electromagnetic screen of the utility model.
Mounting bar with not only be confined to riveted joint being connected of installed surface, also can adopt modes such as screw connects, bonding, crimping.For example, at the unit installed surface some screws that are used to plug screw are set, installation portion is the installing hole of the correspondence that is provided with on the mounting bar, and mounting bar is connected with the installed surface of unit by screw and the supporting nut that is plugged in its installing hole.Electromagnetic shielding liner also is not limited to metal spring leaf, can also be that other elastomers with conductivity constitute, such as conductive rubber etc.
Above-mentioned disclosed only be several specific embodiment of the present utility model, but the utility model is not limited thereto, as long as electromagnetic screen adopts the structure of mounting bar Motionless electromagnetic shielding gasket, all belongs to protection scope of the present invention.Any those skilled in the art can think variation all should drop in the protection range of the present utility model.
Claims (10)
1, a kind of electromagnetic screen comprises electromagnetic shielding liner, it is characterized in that, also comprises mounting bar, and described mounting bar comprises installation portion, and mounting bar is installed in the unit installed surface of conductively-closed equipment by installation portion, and electromagnetic shielding liner is sheathed on described mounting bar.
2, electromagnetic screen as claimed in claim 1 is characterized in that, at the unit installed surface some salient points is set, and described installation portion is the installing hole that is provided with on the mounting bar, and installing hole is riveted on corresponding salient point.
3, electromagnetic screen as claimed in claim 1 or 2 is characterized in that, described mounting bar is a sheet.
4, electromagnetic screen as claimed in claim 1 is characterized in that, electromagnetic shielding liner is a metal spring leaf.
5, electromagnetic screen as claimed in claim 4, it is characterized in that metal spring leaf is formed by some reeds unit serial connection, the both sides of reed unit concave, the middle part is convex, and the width of described mounting bar is less than the width of metal spring leaf and greater than the width between the both sides that concave.
6, a kind of electromagnetic screen, it is characterized in that, comprise electromagnetic shielding liner and mounting bar, described electromagnetic shielding liner is made of some shielding gasket groups, described mounting bar is arranged on the bottom of some shielding gasket groups, and described mounting bar is connected in the unit installed surface of conductively-closed equipment.
7, electromagnetic screen as claimed in claim 6, it is characterized in that, described mounting bar comprises installation portion and cushion part is installed, installation portion is used for being connected with the unit installed surface, cushion part is installed some electromagnetic shielding liner groups are set, each electromagnetic shielding liner group is formed by some pad units serial connections, and described installation portion and installation cushion part alternately occur.
8, electromagnetic screen as claimed in claim 7 is characterized in that, the installation cushion part of described mounting bar and the some electromagnetic shielding liner groups that are provided with on it structure that is formed in one.
9, electromagnetic screen as claimed in claim 7 is characterized in that, installation portion is the some installing holes that are provided with on the mounting bar, and the unit installed surface is provided with the salient point corresponding with installing hole, and installing hole is riveted on salient point.
As claim 7 or 8 described electromagnetic screens, it is characterized in that 10, described electromagnetic shielding liner is a metal spring leaf.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520113515 CN2810118Y (en) | 2005-07-13 | 2005-07-13 | Electromagnetic shielding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520113515 CN2810118Y (en) | 2005-07-13 | 2005-07-13 | Electromagnetic shielding device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2810118Y true CN2810118Y (en) | 2006-08-23 |
Family
ID=36926300
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520113515 Expired - Lifetime CN2810118Y (en) | 2005-07-13 | 2005-07-13 | Electromagnetic shielding device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2810118Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101896059A (en) * | 2009-04-17 | 2010-11-24 | 莱尔德电子材料(深圳)有限公司 | EMI shielding and/or grounding gaskets |
-
2005
- 2005-07-13 CN CN 200520113515 patent/CN2810118Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101896059A (en) * | 2009-04-17 | 2010-11-24 | 莱尔德电子材料(深圳)有限公司 | EMI shielding and/or grounding gaskets |
| CN101896059B (en) * | 2009-04-17 | 2013-11-06 | 莱尔德电子材料(深圳)有限公司 | EMI shielding and/or grounding gaskets |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: HANGZHOU HUASAN COMMUNICATION TECHNOLOGY CO., LTD. Free format text: FORMER NAME OR ADDRESS: HANGZHOU HUAWEI 3COM TECHNOLOGY CO., LTD. |
|
| CP03 | Change of name, title or address |
Address after: 310053, Hangzhou hi tech Industrial Development Zone, Zhejiang hi tech Industrial Park, No. six and No. 310 HUAWEI Hangzhou production base Patentee after: Huasan Communication Technology Co., Ltd. Address before: 310053, Jiang hi tech Industrial Development Zone, Zhejiang, Hangzhou hi tech Industrial Park six and Lu Donghua as the 3Com headquarters Patentee before: Huawei Sankang Technology Co., Ltd., Hangzhou |
|
| CX01 | Expiry of patent term |
Expiration termination date: 20150713 Granted publication date: 20060823 |
|
| EXPY | Termination of patent right or utility model |