CN104363745A - Electro magnetic compatibility shielding box - Google Patents
Electro magnetic compatibility shielding box Download PDFInfo
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- CN104363745A CN104363745A CN201410748882.XA CN201410748882A CN104363745A CN 104363745 A CN104363745 A CN 104363745A CN 201410748882 A CN201410748882 A CN 201410748882A CN 104363745 A CN104363745 A CN 104363745A
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- shielding
- shell
- screening
- inner casing
- inner shell
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Abstract
The invention provides an electro magnetic compatibility shielding box which comprises a shielding shell and an inner shell, wherein the inner shell is arranged in the shielding shell; the shielding shell sequentially comprises a glass fiber layer, a plastic layer and a shielding layer from inside to outside; double surfaces of the plastic layer are plated with metals, and the shielding layer is made from an electromagnetic wave absorbing material; the inner shell is made from an aluminum alloy plate, the inner shell is mutually spaced with the shielding shell and is connected and fixed together with the shielding shell through a support frame, the part between the inner shell and the shielding shell is filled with conductive foam; and the inner shell and the shielding shell are provided with openable and closable shielding doors, the position of the shielding door on the inner shell corresponds to the position of the shielding door on the shielding shell, the shielding door on the inner shell is made from the aluminum alloy plate, and the shielding door on the shielding shell is consistent to the shielding shell in structure. By adopting the mode, the electro magnetic compatibility shielding box provided by the invention has good electro magnetic compatibility shielding function and is suitable for shielding various electromagnetic waves.
Description
Technical field
The present invention relates to electromagnetic compatibility shielding technical field, particularly relate to a kind of electromagnetic compatibility shielding case.
Background technology
Traditional electromagnetic compatibility shielding device only uses layer of metal plate to make shielding cavity usually.Due to this relatively simple for structure, therefore can only be applicable to the electromagnetic shielding of low frequency, often not by EMC test.In actual use, easy and other electromagnetic equipments cause electromagnetic interference mutually.Therefore, traditional shielding construction can not meet the shielding requirements under complex electromagnetic environment.
Summary of the invention
The technical problem that the present invention mainly solves is to provide a kind of electromagnetic compatibility shielding case, can possess good electromagnetic compatibility shielding function, be applicable to various shielding electromagnetic waves.
For solving the problems of the technologies described above, the technical scheme that the present invention adopts is: provide a kind of electromagnetic compatibility shielding case, described electromagnetic compatibility shielding case comprises screening can and is located at the inner casing in described screening can, described screening can comprises glass layer from inside to outside successively, the plastic layer of two-sided plating and the screen be made up of electromagnetic wave absorbent material, described inner casing is made up of aluminium alloy plate, described inner casing and described screening can are spaced from each other, and be connected and fixed by support and described screening can, filled conductive foam between described inner casing and described screening can, described inner casing and described screening can are provided with the shield door that can open and close, and the position of shield door on described inner casing is corresponding with the position of the shield door on described screening can, shield door on described inner casing is made up of aluminium alloy plate, shield door on described screening can is consistent with the structure of described screening can.
Preferably, described electromagnetic compatibility shielding case also comprises refrigerating plant, and described refrigerating plant is positioned at the bottom of described inner casing.
The invention has the beneficial effects as follows: the situation being different from prior art, in electromagnetic compatibility shielding case of the present invention, screening can adopts the structure of composite bed, both the structure of screening can have been strengthened, again can electromagnetic wave absorption effectively, and inner casing can reflection electromagnetic wave, extraneous electromagnetic wave can not be entered, inner electromagnetic wave to external radiation, thus can not can possess good electromagnetic compatibility shielding function, is applicable to various shielding electromagnetic waves.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of electromagnetic compatibility shielding device embodiment of the present invention.
Fig. 2 is the rip cutting schematic top plan view of electromagnetic compatibility shielding device embodiment of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only a part of embodiment of the present invention, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Please also refer to Fig. 1 and Fig. 2.The electromagnetic compatibility shielding case of the present embodiment comprises screening can 1 and the inner casing 2 be located in screening can 1, screening can 1 comprises glass layer 101 from inside to outside successively, the plastic layer 102 of two-sided plating and the screen 103 be made up of electromagnetic wave absorbent material, inner casing 2 is made up of aluminium alloy plate, inner casing 2 and screening can 1 are spaced from each other, and be connected and fixed by support (not indicating in figure) and screening can 1, filled conductive foam 3 between inner casing 2 and screening can 1, inner casing 2 and screening can 1 are provided with the shield door that can open and close, and the position of shield door 21 on inner casing 2 is corresponding with the position of the shield door 11 on screening can 1, shield door 21 on inner casing 2 is made up of aluminium alloy plate, shield door 11 on screening can 1 is consistent with the structure of screening can 1.Shield door 11 is also comprise glass layer 101, the plastic layer 102 of two-sided plating and the screen 103 be made up of electromagnetic wave absorbent material from inside to outside successively.
Wherein, glass layer 101 intensity is high, good springiness, can meet the mechanical requirements such as intensity and anti-impact force needed for screening can 1; The two-sided plating of plastic layer 102, have good electric conductivity, and screen 103 is returned in the reflection of electromagnetic wave that major part can be penetrated screen 103, increases absorption loss, improves shield effectiveness; Screen 103 is owing to adopting electromagnetic wave absorbent material, the electromagnetic wave of the multipath reflection after can being entered by electromagnetic surface reflection, the electromagnetic wave eddy current when internal transmission, inductor loss, electro-magnetic wave absorption loss and electromagnetic wave, the mode attenuate incident of scattering, reaches the effect of electromagnetic shielding.Inner casing 2 adopts aluminium alloy plate, can the electromagnetic wave of reflect ambient.Thus screening can 1 and inner casing 2 reach the effect of dual shield, even if electromagnetic wave is just in case penetrate screening can 1, the all right electromagnetic wave absorption of conducting foam 3, thus the electromagnetic compatibility shielding case of the present embodiment can possess good electromagnetic compatibility shielding function, is applicable to various shielding electromagnetic waves.
In the present embodiment, electromagnetic compatibility shielding case also comprises refrigerating plant 4, and refrigerating plant 4 is positioned at the bottom of inner casing 2.Refrigerating plant 4 is arranged on bottom, can directly to the equipment cooling in inner casing 2.
The foregoing is only embodiments of the invention; not thereby the scope of the claims of the present invention is limited; every utilize specification of the present invention and accompanying drawing content to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present invention.
Claims (2)
1. an electromagnetic compatibility shielding case, it is characterized in that, described electromagnetic compatibility shielding case comprises screening can and is located at the inner casing in described screening can, described screening can comprises glass layer from inside to outside successively, the plastic layer of two-sided plating and the screen be made up of electromagnetic wave absorbent material, described inner casing is made up of aluminium alloy plate, described inner casing and described screening can are spaced from each other, and be connected and fixed by support and described screening can, filled conductive foam between described inner casing and described screening can, described inner casing and described screening can are provided with the shield door that can open and close, and the position of shield door on described inner casing is corresponding with the position of the shield door on described screening can, shield door on described inner casing is made up of aluminium alloy plate, shield door on described screening can is consistent with the structure of described screening can.
2. electromagnetic compatibility shielding case according to claim 1, is characterized in that, described electromagnetic compatibility shielding case also comprises refrigerating plant, and described refrigerating plant is positioned at the bottom of described inner casing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410748882.XA CN104363745A (en) | 2014-12-09 | 2014-12-09 | Electro magnetic compatibility shielding box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410748882.XA CN104363745A (en) | 2014-12-09 | 2014-12-09 | Electro magnetic compatibility shielding box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104363745A true CN104363745A (en) | 2015-02-18 |
Family
ID=52530948
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410748882.XA Pending CN104363745A (en) | 2014-12-09 | 2014-12-09 | Electro magnetic compatibility shielding box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104363745A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105578855A (en) * | 2016-01-28 | 2016-05-11 | 宁波健信核磁技术有限公司 | Leakage magnetic field shielding device for magnetic resonance imager |
| CN105573042A (en) * | 2016-03-16 | 2016-05-11 | 成都电锯互动科技有限公司 | Virtual reality system |
| CN114025598A (en) * | 2021-10-25 | 2022-02-08 | 广州国保科技有限公司 | Shielding cabinet |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100012369A1 (en) * | 2008-07-16 | 2010-01-21 | John Pope | Spring retained shield for printed wiring boards |
| CN202057676U (en) * | 2011-03-21 | 2011-11-30 | 南通傲迈光电科技有限公司 | Electronic circuit shielding box for monitoring system of chain network type high-voltage transmission line |
| CN202160379U (en) * | 2011-07-14 | 2012-03-07 | 苏州欧菲特电子技术研发有限公司 | TPMS shielding case |
| CN103009695A (en) * | 2011-09-22 | 2013-04-03 | 李贵祥 | Thermal insulating super-conductive magnetic shielding composite plate |
| CN204217318U (en) * | 2014-12-09 | 2015-03-18 | 成都国蓉科技有限公司 | Electromagnetic compatibility shielding case |
-
2014
- 2014-12-09 CN CN201410748882.XA patent/CN104363745A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100012369A1 (en) * | 2008-07-16 | 2010-01-21 | John Pope | Spring retained shield for printed wiring boards |
| CN202057676U (en) * | 2011-03-21 | 2011-11-30 | 南通傲迈光电科技有限公司 | Electronic circuit shielding box for monitoring system of chain network type high-voltage transmission line |
| CN202160379U (en) * | 2011-07-14 | 2012-03-07 | 苏州欧菲特电子技术研发有限公司 | TPMS shielding case |
| CN103009695A (en) * | 2011-09-22 | 2013-04-03 | 李贵祥 | Thermal insulating super-conductive magnetic shielding composite plate |
| CN204217318U (en) * | 2014-12-09 | 2015-03-18 | 成都国蓉科技有限公司 | Electromagnetic compatibility shielding case |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105578855A (en) * | 2016-01-28 | 2016-05-11 | 宁波健信核磁技术有限公司 | Leakage magnetic field shielding device for magnetic resonance imager |
| CN105573042A (en) * | 2016-03-16 | 2016-05-11 | 成都电锯互动科技有限公司 | Virtual reality system |
| CN114025598A (en) * | 2021-10-25 | 2022-02-08 | 广州国保科技有限公司 | Shielding cabinet |
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Legal Events
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150218 |