CN204231865U - Electromagnetic compatibility shielding cabin - Google Patents
Electromagnetic compatibility shielding cabin Download PDFInfo
- Publication number
- CN204231865U CN204231865U CN201420771243.0U CN201420771243U CN204231865U CN 204231865 U CN204231865 U CN 204231865U CN 201420771243 U CN201420771243 U CN 201420771243U CN 204231865 U CN204231865 U CN 204231865U
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- CN
- China
- Prior art keywords
- screening
- inner casing
- shield door
- electromagnetic compatibility
- electromagnetic
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- Expired - Fee Related
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Abstract
The utility model provides a kind of electromagnetic compatibility shielding cabin.Electromagnetic compatibility shielding cabin comprises screening can and is located at the inner casing in screening can, 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, inner casing is made up of aluminium alloy plate, inner casing and screening can are spaced from each other, and be connected and fixed by support and screening can, filled conductive foam between inner casing and screening can, inner casing and screening can are provided with the shield door that can open and close, and the position of shield door on inner casing is corresponding with the position of the shield door on screening can, shield door on inner casing is made up of aluminium alloy plate and shield door is had the ventilating opening of honey comb structure, shield door on screening can is consistent with the structure of screening can.By the way, the utility model can possess good electromagnetic compatibility shielding function, is applicable to various shielding electromagnetic waves.
Description
Technical field
The utility model relates to electromagnetic compatibility shielding technical field, particularly relates to a kind of electromagnetic compatibility shielding cabin.
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.
Utility model content
The technical problem that the utility model mainly solves is to provide a kind of electromagnetic compatibility shielding cabin, 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 utility model adopts is: provide a kind of electromagnetic compatibility shielding cabin, described electromagnetic compatibility shielding cabin 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 and shield door is had the ventilating opening of honey comb structure, shield door on described screening can is consistent with the structure of described screening can.
Preferably, the diameter of described ventilating opening is less than default electromagnetic wavelength threshold.
Preferably, described electromagnetic compatibility shielding cabin also comprises refrigerating plant, and described refrigerating plant is positioned at the bottom of described inner casing.
The beneficial effects of the utility model are: the situation being different from prior art, in electromagnetic compatibility shielding cabin of the present utility model, 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 the utility model electromagnetic compatibility shielding device embodiment.
Fig. 2 is the rip cutting schematic top plan view of the utility model electromagnetic compatibility shielding device embodiment.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only a part of embodiment of the present utility model, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
Please also refer to Fig. 1 and Fig. 2.The electromagnetic compatibility shielding cabin 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 and shield door 21 is had the ventilating opening 211 of honey comb structure, 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.Further, inner casing 2 can by the ventilating opening 211 on shield door 21 and extraneous ventilation and heat, in addition, can also reflect and absorb the electromagnetic wave passed through, make the electromagnetic wave in inner casing 2 can not to external radiation, electromagnetic wave outside inner casing 2 can not enter in inner casing 2, further enhances electromagnetic compatibility shielding performance.
In the present embodiment, the diameter of ventilating opening 211 is less than default electromagnetic wavelength threshold.In actual applications, the diameter of ventilating opening 211 determines the screening frequencies scope to low-frequency electromagnetic wave, therefore need to shield useless low-frequency interference signal according to the actual requirements, therefore, the diameter designing ventilating opening 211 should be less than the wavelength threshold of the default low-frequency electromagnetic wave that will shield.
Alternatively, electromagnetic compatibility shielding cabin also comprises refrigerating plant 4, and refrigerating plant 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 embodiment of the present utility model; not thereby the scope of the claims of the present utility model is limited; every utilize the utility model specification 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 utility model.
Claims (3)
1. an electromagnetic compatibility shielding cabin, it is characterized in that, described electromagnetic compatibility shielding cabin 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 and shield door is had the ventilating opening of honey comb structure, shield door on described screening can is consistent with the structure of described screening can.
2. electromagnetic compatibility shielding cabin according to claim 1, is characterized in that, the diameter of described ventilating opening is less than default electromagnetic wavelength threshold.
3. electromagnetic compatibility shielding cabin according to claim 1, is characterized in that, described electromagnetic compatibility shielding cabin 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 |
|---|---|---|---|
| CN201420771243.0U CN204231865U (en) | 2014-12-09 | 2014-12-09 | Electromagnetic compatibility shielding cabin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420771243.0U CN204231865U (en) | 2014-12-09 | 2014-12-09 | Electromagnetic compatibility shielding cabin |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204231865U true CN204231865U (en) | 2015-03-25 |
Family
ID=52929904
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420771243.0U Expired - Fee Related CN204231865U (en) | 2014-12-09 | 2014-12-09 | Electromagnetic compatibility shielding cabin |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204231865U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104378964A (en) * | 2014-12-09 | 2015-02-25 | 成都国蓉科技有限公司 | Electromagnetic compatibility shield compartment |
| CN107734949A (en) * | 2017-10-18 | 2018-02-23 | 四川嘉义雷科电子技术有限公司 | A kind of waterproof construction of electromagnetic compatibility control cabinet |
-
2014
- 2014-12-09 CN CN201420771243.0U patent/CN204231865U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104378964A (en) * | 2014-12-09 | 2015-02-25 | 成都国蓉科技有限公司 | Electromagnetic compatibility shield compartment |
| CN104378964B (en) * | 2014-12-09 | 2017-07-07 | 成都国蓉科技有限公司 | Electromagnetic compatibility shielding cabin |
| CN107734949A (en) * | 2017-10-18 | 2018-02-23 | 四川嘉义雷科电子技术有限公司 | A kind of waterproof construction of electromagnetic compatibility control cabinet |
| CN107734949B (en) * | 2017-10-18 | 2019-11-05 | 四川嘉义雷科电子技术有限公司 | A kind of waterproof construction of electromagnetic compatibility control cabinet |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 610041 No. 2 Tianyu Road, hi tech Zone, Sichuan, Chengdu Patentee after: Rong Rong Technology Co., Ltd. Address before: 610041 No. 2 Tianyu Road, hi tech Zone, Sichuan, Chengdu Patentee before: CHENGDU GUORONG TECHNOLOGY CO., LTD. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150325 Termination date: 20191209 |