CN104093297A - Magnetic shielding device - Google Patents
Magnetic shielding device Download PDFInfo
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- CN104093297A CN104093297A CN201410265215.6A CN201410265215A CN104093297A CN 104093297 A CN104093297 A CN 104093297A CN 201410265215 A CN201410265215 A CN 201410265215A CN 104093297 A CN104093297 A CN 104093297A
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- magnetic
- shielding device
- base
- seat surface
- magnetic screen
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- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
Abstract
The invention discloses a magnetic shielding device which comprises a base. A plurality of wedge-shaped magnetic shielding bars are evenly arranged on the surface of the base, and the magnetic wedge-shaped shielding rods can enclose a space where a device to be shielded is arranged. The magnetic shielding device can be applied to magnetic shielding of open devices which are not allowed to be covered in work.
Description
Technical field
The present invention relates to magnetic shielding device field, be specially a kind of magnetic shield apparatus.
Background technology
In charged ion motion process, be easy to be subject to the interference in magnetic field and change movement locus, can make the equipment relevant to charged particle normally to work so on the one hand, on the other hand, the higher charged particle of energy is owing to being subject to magnetic interference, depart from original path, can get on the wall of charged particle passage and breaking-up equipment.
Therefore disturbing magnetic field shields to external world.
The principle of magnetic shielding can illustrate by the concept of magnetic circuit. in the magnetic circuit that has the ferromagnetic material of high magnetic permeability to make, exhausted most magnetic field concentration is in ferromagnetic circuit.
Air in ferromagnetic material and cavity can be analyzed as parallel circuits, because the magnetic permeability of ferromagnetic material is than large several thousand times of the magnetic permeability of air, so the magnetic resistance of the magneto resistive ratio ferromagnetic material of cavity is much bigger, the exhausted major part of the line of magnetic induction of external magnetic field will be passed through in ferromagnetic material wall, and it is few to enter the magnetic flux of cavity.
Like this, the cavity being shielded by ferromagnetic material just there is no external magnetic field, thereby reaching the object of magnetic shielding. the magnetic permeability of material is higher, barrel is thicker, shield effectiveness is just more remarkable. do screen because commonly using ferromagnetic material that magnetic permeability is high as soft iron, silicon steel, permalloy, therefore magnetic shielding is named again ferro-magnetic shield.
Adopt of existing magnetic screen technology covers the equipment permeability magnetic material that needs magnetic screen completely.
The benefit of this magnetic screen technology is better to magnetic field shielding effect, but the shortcoming of this magnetic screen is cannot be to work time not allow the open equipment covering to shield.
Summary of the invention
The object of this invention is to provide a kind of magnetic shield apparatus, the problem that does not allow the open equipment covering to shield cannot be to work time to solve magnetic shield apparatus in prior art.
In order to achieve the above object, the technical solution adopted in the present invention is:
A kind of magnetic shield apparatus, it is characterized in that: include base, on base seat surface, be evenly provided with multiple wedge shape magnetic screen rods along base seat surface edge, described magnetic screen rod is made up of high-permeability material, the space that multiple magnetic screen rods surround supplies to treat shielding device installation, and treats that shielding device is fixed on base seat surface.
Described a kind of magnetic shield apparatus, is characterized in that: the wedge shape bottom of each magnetic screen rod is arranged on base by bolt.
Described a kind of magnetic shield apparatus, is characterized in that: treat that shielding device is bolted on base seat surface.
In the present invention, treat that shielding device is fixed on base, magnetic screen rod is uniformly distributed in treats shielding device around, treat not disturbed by external magnetic field in space that shielding device surrounds at magnetic screen rod, and this method for shielding does not affect equipment with extraneous exchanges of mass and energy.
When can be used for work, the present invention do not allow the magnetic screen of the open equipment covering.
Brief description of the drawings
Fig. 1 is structural representation of the present invention.
Embodiment
As shown in Figure 1.
A kind of magnetic shield apparatus, include base 1, on base 1 seat surface, be evenly provided with multiple wedge shape magnetic screen rods 2 along base 1 seat surface edge, magnetic screen rod 2 is made up of high-permeability material, space that multiple magnetic screen rods 2 surround is for treating that shielding device 3 installs, and treats that shielding device 3 is fixed on base 1 seat surface.
The wedge shape bottom of each magnetic screen rod 2 is arranged on base 1 by bolt.
Treat that shielding device 3 is bolted on base 1 seat surface.
The present invention is by the magnetic screen rod of the materials processing wedgewise shape of high magnetic permeability, and the bottom of magnetic screen rod wedge shape is opened two screw holes and used bolt to be connected with base.
On base, open 4 screw holes and be secured by bolts in and treat shielding device.
Make magnetic screen rod be uniformly distributed in the periphery for the treatment of shielding device.
Claims (3)
1. a magnetic shield apparatus, it is characterized in that: include base, on base seat surface, be evenly provided with multiple wedge shape magnetic screen rods along base seat surface edge, described magnetic screen rod is made up of high-permeability material, the space that multiple magnetic screen rods surround supplies to treat shielding device installation, and treats that shielding device is fixed on base seat surface.
2. a kind of magnetic shield apparatus according to claim 1, is characterized in that: the wedge shape bottom of each magnetic screen rod is arranged on base by bolt.
3. a kind of magnetic shield apparatus according to claim 1, is characterized in that: treat that shielding device is bolted on base seat surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410265215.6A CN104093297A (en) | 2014-06-13 | 2014-06-13 | Magnetic shielding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410265215.6A CN104093297A (en) | 2014-06-13 | 2014-06-13 | Magnetic shielding device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104093297A true CN104093297A (en) | 2014-10-08 |
Family
ID=51640958
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410265215.6A Pending CN104093297A (en) | 2014-06-13 | 2014-06-13 | Magnetic shielding device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104093297A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85101860A (en) * | 1985-04-01 | 1987-01-10 | N·V·菲利浦光灯制造公司 | Nuclear magnetic resonance analyser |
| CN1762188A (en) * | 2003-03-17 | 2006-04-19 | 鹿岛建设株式会社 | Open magnetic shield structure and its magnetic frame |
| JP2011082228A (en) * | 2009-10-02 | 2011-04-21 | Kajima Corp | Open type magnetic shielding structure and belt-like laminate magnetic plate for magnetic shielding |
| CN201821635U (en) * | 2010-08-25 | 2011-05-04 | 兰州大学 | Novel magnetic shielding device |
| JP4814984B2 (en) * | 2009-07-22 | 2011-11-16 | 東急建設株式会社 | Magnetic shield structure. |
| CN103338541A (en) * | 2013-06-14 | 2013-10-02 | 中山大学 | Energy-saving magnetic shielding device for induction heating crystal furnace |
| JP2013251527A (en) * | 2012-04-26 | 2013-12-12 | Sumitomo Heavy Ind Ltd | Superconducting magnetic shield device and manufacturing method therefor |
-
2014
- 2014-06-13 CN CN201410265215.6A patent/CN104093297A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85101860A (en) * | 1985-04-01 | 1987-01-10 | N·V·菲利浦光灯制造公司 | Nuclear magnetic resonance analyser |
| CN1762188A (en) * | 2003-03-17 | 2006-04-19 | 鹿岛建设株式会社 | Open magnetic shield structure and its magnetic frame |
| JP4814984B2 (en) * | 2009-07-22 | 2011-11-16 | 東急建設株式会社 | Magnetic shield structure. |
| JP2011082228A (en) * | 2009-10-02 | 2011-04-21 | Kajima Corp | Open type magnetic shielding structure and belt-like laminate magnetic plate for magnetic shielding |
| CN201821635U (en) * | 2010-08-25 | 2011-05-04 | 兰州大学 | Novel magnetic shielding device |
| JP2013251527A (en) * | 2012-04-26 | 2013-12-12 | Sumitomo Heavy Ind Ltd | Superconducting magnetic shield device and manufacturing method therefor |
| CN103338541A (en) * | 2013-06-14 | 2013-10-02 | 中山大学 | Energy-saving magnetic shielding device for induction heating crystal furnace |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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 | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20141008 |