CN101150947A - Plastic shielding shell - Google Patents
Plastic shielding shell Download PDFInfo
- Publication number
- CN101150947A CN101150947A CNA2007101242258A CN200710124225A CN101150947A CN 101150947 A CN101150947 A CN 101150947A CN A2007101242258 A CNA2007101242258 A CN A2007101242258A CN 200710124225 A CN200710124225 A CN 200710124225A CN 101150947 A CN101150947 A CN 101150947A
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- plastic
- shielding shell
- loam cake
- lower cover
- conductive
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Abstract
The invention discloses a plastic shield casing, comprising an upper cover and a lower cover, one of which is a conductive plastic piece, the other one is a metal piece or a conductive plastic piece. By adopting the plastic shield casing, the invention has advantages of without need of machining treatment, good moulding consistency, high production efficiency and low cost, overcomes the disadvantages of production complexity of the metal shield casing and simplex appearance in the prior art, also improves the electromagnetic shielding effect of the casing. By utilizing reasonable filler with better performance, the combination form of the upper and the lower covers is more abundant, the lap joint form of the casing is simplified to avoid increase of lap joint gap depth and overlap area. The plastic shield casing can be applied to structure electromagnetic shielding of electronic products.
Description
Technical field
The present invention relates to the structure electromagnetic shielding in electronic product field, relate in particular to a kind of plastic shielding shell.
Background technology
Electronic product is more and more higher to the requirement of electromagnetic shielding and product appearance at present, and traditional cabinet can but not have electro-magnetic screen function to the satisfied profile of people; Though and the metallic shield casing has electro-magnetic screen function, process more complicated, its profile can not be changed arbitrarily in addition.
A kind of method of cabinet electromagnetic shielding is to put into conductive mesh grid or electroplating surface or spraying conductive paint in the plastic parts of casing at present, it as the patent No. 98249814.4 Chinese utility model patent " home electric casing " with electro-magnetic screen function, this method needs to use conductive fabric to carry out shielding processing on the contact-making surface of two housings, this version has the following disadvantages: the product manufacture complexity, easily leaving the slit in the two housings lap-joint that conductive fabric is installed influences outward appearance.
At present the another kind of method of cabinet electromagnetic shielding is that casing is used in the conductive plastic material that adds the metallic fiber stainless steel wire in the plastic rubber substrate polycarbonate and makes, this version has the following disadvantages: the effectiveness of casing is unsatisfactory, the structure joint form complexity of casing upper and lower covers needs bigger gap depth and overlapping region.
Summary of the invention
Problem to be solved by this invention is metallic shield casing processing of the prior art and complexity is installed that outward appearance is single; Cabinet does not have the function of electromagnetic shielding, and a kind of plastic shielding shell is provided.
The present invention is by the following technical solutions:
The plastic shielding shell that the present invention proposes comprises loam cake and lower cover, and one of them is a conductive plastic part, and another is metalwork or conductive plastic part.
Preferably, described loam cake and under cover and be provided with a plurality of mesh.
Preferably, described conductive plastic part adopts and adds conductive fiber and particle is made in plastic basis material.
Preferably, described plastic basis material is one of following macromolecular material: polycarbonate PC, engineering plastics ABS, polypropylene PP.
Preferably, described conductive fiber is stainless steel fibre, aluminum alloy fiber or nickel-coated carbon fibers.
Preferably, described particle is nickel powder, carbon dust or graphite.
Preferably, also be provided with conducting resinl between described loam cake and the lower cover, be used for bonding described loam cake and lower cover.
Preferably, described loam cake is connected by screw with lower cover or the bayonet socket connection.
Preferably, also be provided with shield between described loam cake and the lower cover.
Preferably, described shield be following one or more: metal spring leaf, conductive fabric and conductive rubber.
Preferably, the overlapping mode of described loam cake and lower cover is one of following mode: plane overlap joint, trapezoidal overlapping overlap joint, add shield overlap joint.
The plastic shielding shell that adopts the present invention to propose, with respect to existing metallic shield casing, the plastic casing one-shot forming, need not machining, the moulding high conformity, the production efficiency height, cost is lower, makes complicated and the single shortcoming of outward appearance so overcome metallic shield casing of the prior art significantly; With respect to existing conventional plastic casing, solved the electromagnetic shielding problem.
Adopt the plastic shielding shell of this proposition, compare with respect to the casing that the conductive plastic material that adds the metallic fiber stainless steel wire in the plastic rubber substrate polycarbonate is made, improved the effectiveness of casing, owing to used reasonable filler with better performance, therefore the fit form of screening housing upper and lower covers is also comparatively free and abundant, simplify the structure joint form of casing, avoided the increasing of the lap gap degree of depth and the increase of overlapping region.Plastic shielding shell of the present invention can be widely used in the structure electromagnetic shielding of electronic product.
Description of drawings
Fig. 1 is a plastic shielding shell structural representation of the present invention;
Fig. 2 is a plastic shielding shell lower cover stereogram of the present invention;
Fig. 3 is a plastic shielding shell profile of the present invention;
Fig. 4 is the partial enlarged drawing of A among Fig. 3;
Among the figure: 101 is loam cake, and 102 is lower cover, and 201 is screw mounting hole, and 401 is shield.
Embodiment
Be described in further detail below in conjunction with the enforcement of accompanying drawing technical scheme:
Shown in Fig. 1-4, plastic shielding shell of the present invention comprises by loam cake 101 and lower cover 102 two parts and forming that described casing material has several forms: 1) shell material is conductive plastics; 2) loam cake 101 is that conductive plastics lower cover 102 is metal; 3) loam cake 101 is that metal lower cover 102 is conductive plastics.
In the present embodiment, the plastic basis material of loam cake 101 and lower cover 102 is macromolecular materials such as polycarbonate PC, engineering plastics ABS, polypropylene PP, or its composite material.
The filler of loam cake 101 and lower cover 102 conductive plasticss is stainless steel fibre, aluminum alloy fiber, carbon fiber, carbon fiber metallizing, carbon dust, nickel powder, graphite, non-metallic fibers metallizing layer, metal dust, non-metallic particle metallizing etc., perhaps the mixing of its different materials and with the mixing of metallic fiber.
The loam cake 101 of casing and the fit form of lower cover 102 comprise: the upper and lower covers overlap joint is directly fastening with screw or bayonet socket without shield; It is fastening with screw or bayonet socket again to add shield, and shield can comprise the combination of reed, conductive fabric, conductive rubber etc. or its several shields; Upper and lower covers is directly used conductive adhesive without shield; Perhaps as above several combination connecting modes.The overlapping mode of loam cake 101 and lower cover 102 shown in Fig. 4 a one Fig. 4 d, can use that two planes directly overlap, upper and lower covers all with the overlapping overlap joint of trapezoidal shape, add shield overlap joint etc., but be not limited to shown in Fig. 4.
Preferred implementation of the present invention is:
The conductive plastics base material of loam cake 101 and lower cover 102 uses the composite material of PC+ABS, packing material uses nickel-coated carbon fibers, make filler be distributed in loam cake 101 and lower cover 102 centres uniformly by injection moulding, loam cake 101 and lower cover 102 directly overlap with the plane, and by screw mounting hole 401 fastening installations, the spacing of screw mounting hole is controlled at 50mm.
Above content be in conjunction with concrete preferred implementation to further describing that the present invention did, can not assert that concrete enforcement of the present invention is confined to these explanations.For the general technical staff of the technical field of the invention, without departing from the inventive concept of the premise, can also make some simple deduction or replace, all should be considered as belonging to protection scope of the present invention.
Claims (11)
1. a plastic shielding shell is characterized in that, described casing comprises loam cake and lower cover, and one of them is a conductive plastic part, and another is metalwork or conductive plastic part.
2. plastic shielding shell according to claim 1 is characterized in that, described loam cake and under cover and be provided with a plurality of mesh.
3. plastic shielding shell according to claim 1 is characterized in that, described conductive plastic part employing adds conductive fiber in plastic basis material and particle is made.
4. plastic shielding shell according to claim 3 is characterized in that, described plastic basis material is one of following macromolecular material: polycarbonate PC, engineering plastics ABS, polypropylene PP.
5. plastic shielding shell according to claim 3 is characterized in that, described conductive fiber is stainless steel fibre, aluminum alloy fiber or nickel-coated carbon fibers.
6. plastic shielding shell according to claim 3 is characterized in that, described particle is nickel powder, carbon dust or graphite.
7. according to each described plastic shielding shell of claim 1-6, it is characterized in that, also be provided with conducting resinl between described loam cake and the lower cover, be used for bonding described loam cake and lower cover.
8. according to each described plastic shielding shell of claim 1-6, it is characterized in that described loam cake is connected by screw with lower cover or bayonet socket connects.
9. plastic shielding shell according to claim 8 is characterized in that, also is provided with shield between described loam cake and the lower cover.
10. plastic shielding shell according to claim 9 is characterized in that, described shield be following one or more: metal spring leaf, conductive fabric and conductive rubber.
11., it is characterized in that the overlapping mode of described loam cake and lower cover is one of following mode according to each described plastic shielding shell of claim 1-6: plane overlap joint, trapezoidal overlapping overlap joint, add shield overlap joint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101242258A CN101150947A (en) | 2007-10-31 | 2007-10-31 | Plastic shielding shell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101242258A CN101150947A (en) | 2007-10-31 | 2007-10-31 | Plastic shielding shell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101150947A true CN101150947A (en) | 2008-03-26 |
Family
ID=39251194
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007101242258A Pending CN101150947A (en) | 2007-10-31 | 2007-10-31 | Plastic shielding shell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101150947A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102280145A (en) * | 2010-06-10 | 2011-12-14 | 鸿富锦精密工业（深圳）有限公司 | Computer case |
| CN105283055A (en) * | 2014-06-18 | 2016-01-27 | 王兴云 | Anti-electromagnetic-radiation device |
| CN107635389A (en) * | 2017-09-12 | 2018-01-26 | 郑州云海信息技术有限公司 | A kind of machine box for server, server that can reduce radiation |
| CN109041564A (en) * | 2018-09-03 | 2018-12-18 | 阳光电源股份有限公司 | A kind of electromagnetic shielding shell |
| CN109135056A (en) * | 2018-07-27 | 2019-01-04 | 会通新材料股份有限公司 | A kind of novel low-odor electromagnetic shielding polypropylene composite material and preparation method |
| CN111587057A (en) * | 2020-05-15 | 2020-08-25 | 深圳市飞荣达科技股份有限公司 | Shielding box |
| CN112512290A (en) * | 2020-12-10 | 2021-03-16 | 中国电子科技集团公司第三十三研究所 | Method for resisting strong electromagnetic interference of electronic controller case of aircraft engine |
-
2007
- 2007-10-31 CN CNA2007101242258A patent/CN101150947A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102280145A (en) * | 2010-06-10 | 2011-12-14 | 鸿富锦精密工业（深圳）有限公司 | Computer case |
| CN105283055A (en) * | 2014-06-18 | 2016-01-27 | 王兴云 | Anti-electromagnetic-radiation device |
| CN105283055B (en) * | 2014-06-18 | 2018-03-13 | 王兴云 | A kind of anti-electromagnetic radiation device |
| CN107635389A (en) * | 2017-09-12 | 2018-01-26 | 郑州云海信息技术有限公司 | A kind of machine box for server, server that can reduce radiation |
| CN107635389B (en) * | 2017-09-12 | 2020-01-14 | 苏州浪潮智能科技有限公司 | Server case capable of reducing radiation and server |
| CN109135056A (en) * | 2018-07-27 | 2019-01-04 | 会通新材料股份有限公司 | A kind of novel low-odor electromagnetic shielding polypropylene composite material and preparation method |
| CN109041564A (en) * | 2018-09-03 | 2018-12-18 | 阳光电源股份有限公司 | A kind of electromagnetic shielding shell |
| CN111587057A (en) * | 2020-05-15 | 2020-08-25 | 深圳市飞荣达科技股份有限公司 | Shielding box |
| CN112512290A (en) * | 2020-12-10 | 2021-03-16 | 中国电子科技集团公司第三十三研究所 | Method for resisting strong electromagnetic interference of electronic controller case of aircraft engine |
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| PB01 | Publication | ||
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| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Open date: 20080326 |