CN201821636U - Magnetic shielding device - Google Patents
Magnetic shielding device Download PDFInfo
- Publication number
- CN201821636U CN201821636U CN2010205041804U CN201020504180U CN201821636U CN 201821636 U CN201821636 U CN 201821636U CN 2010205041804 U CN2010205041804 U CN 2010205041804U CN 201020504180 U CN201020504180 U CN 201020504180U CN 201821636 U CN201821636 U CN 201821636U
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- magnetic shielding
- cover body
- shielding device
- nickel alloy
- iron
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- Expired - Fee Related
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- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
Abstract
The utility model relates to a magnetic shielding device, which comprises a hexahedral ferronickel hood. The ferronickel hood structurally comprises an inner layer and an outer layer, a non-magnet-conductible interlayer is disposed between the inner layer and the outer layer, a through hole is arranged on a side wall of the ferronickel hood, and leads of equipment to be mounted in the ferronickel hood penetrate through the through hole. The magnetic shielding device can effectively realize electromagnetic shielding, and protects the equipment and devices in the hood against being in electromagnetic interference.
Description
Technical field
The utility model relates to a kind of magnetic shielding device, and particularly a kind of protective device internal unit, device are avoided outside electromagnetic interference, the magnetic shielding cover of equipment, device operate as normal in the ensuring equipment.
Background technology
In normal operation, the electronic/electric in the equipment can produce the electromagnetic energy of not expecting usually, and this electromagnetic energy is because radiation produces the EMI(electromagnetic interference), have influence on the operate as normal of adjacent electronic/electric.Electromagnetic interference is big especially to the influence of sensing instrument equipment and electronic component, the environmental magnetic field around the equipment must be shielded to and could guarantee its normal work in certain scope.Adopting radome to reduce magnetic field intensity in the cover is a good mode in the electromagnetic shielding.
The utility model content
The technical problems to be solved in the utility model is to overcome existing defective, provides a kind of and can carry out effective electromagnetic shielding, the equipment in the assurance device, the magnetic shielding device of device operate as normal.
In order to solve the problems of the technologies described above, the utility model provides following technical scheme: a kind of magnetic shielding device, comprise hexahedral iron-nickel alloy cover body, and this iron-nickel alloy cover body is inside and outside double-decker, is provided with not magnetic conduction interlayer between internal layer and the skin; The sidewall of described iron-nickel alloy cover body is provided with the through hole of wanting the lead on the installed device to pass through for inner.
Described iron-nickel alloy cover body is plugged together mutually by four sides part that is wholely set and two face portion and constitutes, and described four sides part is combined closely with two face portion.
Two opposite faces in the part of described four sides are provided with relative chute, and the corresponding plug-in mounting with chute of a face of described two face portion cooperates the formation hexahedron.
The thickness of the inside and outside layer of described iron-nickel alloy cover body is 5mm.
The thickness of described not magnetic conduction interlayer is 1.5mm.
Magnetic shielding device of the present utility model adopts double-decker, and is provided with not magnetic conduction interlayer inside and outside between two-layer, be provided with this not the magnetic conduction interlayer can prevent to occur between the ectonexine magnet short-cut path.Double-layer structure makes and has improved magnetic shield performance by two magnetic loops of the interior formation of cover body inside and outside being provided with, and 500 Gausses' magnetic field intensity can be shielded to 50 Gausses.
Also have, the form that cover body adopts four sides part and two face portion to plug together mutually forms a hexahedron structure, adopts this kind structure to be convenient to equipment in installation, the cover removal, has improved the efficient of assembling and maintenance.
Description of drawings
Accompanying drawing is used to provide further understanding of the present utility model, and constitutes the part of specification, is used from explanation the utility model with embodiment one of the present utility model, does not constitute restriction of the present utility model.In the accompanying drawings:
Blast structure chart when Fig. 1 is the utility model magnetic field shielding cover employing hexahedron structure.
Embodiment
Below in conjunction with accompanying drawing preferred embodiment of the present utility model is described, should be appreciated that preferred embodiment described herein only is used for description and interpretation the utility model, and be not used in qualification the utility model.
Shown in Figure 1, the embodiment of the utility model magnetic shielding device, this magnetic shielding device comprises the cover body of a hexahedron, the cover body of this hexahedron is to be that the iron-nickel alloy plate of 5mm processes by thickness, adopting the iron-nickel alloy plate mainly is to utilize iron-nickel alloy to have higher magnetic permeability, in magnetic field environment, form low magnetic resistance path by its cover body that makes, the magnetic line of force is limited in the iron-nickel alloy plate, therefore can be so that the equipment that is provided with in the cover body internal cavities, device are avoided electromagnetic interference.This magnetic shielding device adopts inside and outside two-layer structure, is provided with the not magnetic conduction interlayer that thickness is 1.5mm inside and outside between two-layer, this not the magnetic conduction interlayer can be the ambroin layer.What the cover body of this hexahedron adopted is the branch body structure, and promptly it has a four sides part 1 and one two face portion 2 closely to plug together formation mutually.Wherein, be provided with chute between two opposite faces in the part of four sides, one of them face of two face portion is corresponding with chute to plug together.The sidewall of cover body is provided with through hole, and through hole is to be used for passing through for the lead on the installed device in this screening arrangement.
It should be noted that at last: the above only is preferred embodiment of the present utility model, be not limited to the utility model, although the utility model is had been described in detail with reference to previous embodiment, for a person skilled in the art, it still can be made amendment to the technical scheme that aforementioned each embodiment put down in writing, and perhaps part technical characterictic wherein is equal to replacement.All within spirit of the present utility model and principle, any modification of being done, be equal to replacement, improvement etc., all should be included within the protection range of the present utility model.
Claims (5)
1. magnetic shielding device, it is characterized in that: comprise hexahedral iron-nickel alloy cover body, this iron-nickel alloy cover body is inside and outside double-decker, is provided with not magnetic conduction interlayer between internal layer and the skin; The sidewall of described iron-nickel alloy cover body is provided with the through hole of wanting the lead on the installed device to pass through for inner.
2. magnetic shielding device according to claim 1 is characterized in that: described iron-nickel alloy cover body is plugged together mutually by four sides part that is wholely set and two face portion and constitutes, and described four sides part is combined closely with two face portion.
3. magnetic shielding device according to claim 2 is characterized in that: two opposite faces in the part of described four sides are provided with relative chute, and the corresponding plug-in mounting with chute of a face of described two face portion cooperates the formation hexahedron.
4. according to claim 1 or 2 or 3 described magnetic shielding devices, it is characterized in that: the thickness of the inside and outside layer of described iron-nickel alloy cover body is 5mm.
5. magnetic shielding device according to claim 4 is characterized in that: the thickness of described not magnetic conduction interlayer is 1.5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205041804U CN201821636U (en) | 2010-08-25 | 2010-08-25 | Magnetic shielding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205041804U CN201821636U (en) | 2010-08-25 | 2010-08-25 | Magnetic shielding device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201821636U true CN201821636U (en) | 2011-05-04 |
Family
ID=43919577
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205041804U Expired - Fee Related CN201821636U (en) | 2010-08-25 | 2010-08-25 | Magnetic shielding device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201821636U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108683464A (en) * | 2018-04-20 | 2018-10-19 | 京信通信系统（中国）有限公司 | Antenna calibration network device and its shielding case |
-
2010
- 2010-08-25 CN CN2010205041804U patent/CN201821636U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108683464A (en) * | 2018-04-20 | 2018-10-19 | 京信通信系统（中国）有限公司 | Antenna calibration network device and its shielding case |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110504 Termination date: 20150825 |
|
| EXPY | Termination of patent right or utility model |