CN103298304A - Electronic equipment case with protection function against space charged particle irradiation - Google Patents
Electronic equipment case with protection function against space charged particle irradiation Download PDFInfo
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- CN103298304A CN103298304A CN2013101728774A CN201310172877A CN103298304A CN 103298304 A CN103298304 A CN 103298304A CN 2013101728774 A CN2013101728774 A CN 2013101728774A CN 201310172877 A CN201310172877 A CN 201310172877A CN 103298304 A CN103298304 A CN 103298304A
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Abstract
The invention discloses an electronic equipment case with a protection function against space charged particle irradiation, and belongs to the technical field of irradiation protection for electronic equipment. The electronic equipment case comprises a seal case, an outer shielding shell and an inner shielding shell; the seal case is provided with permanent magnets; a pair of permanent magnet materials are fixed onto two opposite end surfaces of the seal case, the two end surfaces are not perpendicular to an incidence direction of charged particles, and polarities of opposite surfaces of the two permanent magnet materials are different from each other, so that an intense magnetic field is formed within certain space L on the outside of the seal case; the inner shielding shell is fixedly mounted in the seal case and clings to the inner wall of the seal case, and electronic equipment is placed in the seal case with the permanent magnets, and is connected with external equipment via electric signals of the electronic equipment by extraction rods on the seal case or a seal electric connector. The electronic equipment case has the advantages that the service reliability of the space electronic equipment is improved, requirements on irradiation resistance and reinforcement of components or assembly-level products in the electronic equipment are lowered, and the cost of the electronic equipment under an integral space irradiation environmental condition is greatly reduced.
Description
Technical field
The present invention relates to a kind of electronic equipment chassis, a kind of electronic equipment chassis that has space charged particle radiation protection function particularly, electronic equipment radiation protection technical field.
Background technology
Space charged particle irradiation is one of key factor that causes the electronic devices and components damage; existing radiation protection measure mainly is to diode; semiconductor device such as triode carry out the Isolated Shield protection; its basic principle be according to ray by material after its intensity principle that can be weakened; realize protection by increasing loss and the energy attenuation of charged particle in the Isolated Shield medium; this mode requires spacer medium composition of layer complexity and thickness big; technology and encapsulation difficulty are big; often barriering effect is limited for high energy charged particles simultaneously; thereby reduce the reliability of entire product, can not satisfy the long-term instructions for use under the complex situations such as space environment.
Electronic equipment chassis directly contacts with external environment, is the ground floor door of the anti-irradiation of electronic equipment therefore.The irradiation shielding means of defence of present stage mainly is that cabinet case material and thickness come loss or the energy of the incident charged particle of decaying by changing, thereby realizes the protection to its internal electronic equipment.
Summary of the invention
The technology of the present invention is dealt with problems: overcome the deficiencies in the prior art, a kind of electronic equipment chassis that has space charged particle radiation protection function is provided, to solve the problem that electronic equipment and electronic devices and components sustain damage under the charged particle radiation environment.
The technology of the present invention solution: a kind of electronic equipment chassis that has charged particle radiation protection function comprises: seal case (2), external shield housing (1) and the inner shield housing (3) of band permanent magnet; Fix a pair of permanent magnetic material (4,9) at seal case (2) non-perpendicular to the opposite end surface of charged particle incident direction, and the polarity inequality of two permanent magnetic material opposite faces, thereby high-intensity magnetic field outside seal case (2), formed in the certain space L; At the outer surface (10) of distance stuffing box housing (2) the space mounting external shield housing (1) greater than L; Wherein the spacing of the outer surface (10) of the inwall (11) of external shield housing (1) and seal case (2) is not less than L, realizes the magnetostatic field shielding of external inside of shield casings and can not influence outside other equipment of casing; Install and fix inner shield housing (3) at stuffing box housing (2) inner close fitting inwall, realize the magnetostatic field shielding inner to seal case (2); Electronic equipment (13) is placed in the seal case (2) that permanent magnet has been installed, and its electric signal is by leading-off rods on the seal case (7) or sealed electrical connector and external equipment realization interconnection, and thermal control is then by liquid cooling pipeline (6) and peripheral component interconnect; Whole seal case (2) is fixed on external shield housing (1) inside by the mounting bracket (12) of diamagnetic material.
Described external shield housing (1), seal case shell (2) and inner shield case material (3) are the ferromagnetic material of high magnetic permeability (relative permeability is not less than 100000).
The present invention's advantage compared with prior art is:
(1) the present invention is by forming high-intensity magnetic field in the electronic equipment cabinet external body, makes incident charging particle movement track change and can not drop on or penetrate the cabinet housing, thereby reduce the influence that outside charged particle irradiation causes its internal electronic equipment.Contrast existing shielding protection technology, its advantage just is significantly to reduce the probability that charged particle penetrates housing, thereby reduce the anti-irradiation requirement to components and parts in the electronic equipment and component level product, be conducive to the room for promotion dependability of electronic equipment, significantly reduce the cost of electronic equipment under the whole radiation environment condition simultaneously.
(2) the present invention significantly reduces the influence of high-intensity magnetic field to the device external electromagnetic environment by the external shield housing that high permeability material constitutes, and avoids high-intensity magnetic field and device external magnetic field to produce bad interactive effect.
(3) the present invention significantly reduces the influence of high-intensity magnetic field to device interior electronic circuit and components and parts by the inner shield housing that high permeability material constitutes, and avoids the normal operation generation ill-effect of electronic module in high-intensity magnetic field and the equipment.
Description of drawings
Fig. 1 is principle of the invention schematic diagram;
Fig. 2 is the internal structure schematic diagram of apparatus of the present invention;
Fig. 3 is the seal case schematic diagram of band permanent magnet in apparatus of the present invention;
Fig. 4 is apparatus of the present invention China and foreign countries shield shell schematic diagrames;
Fig. 5 is the schematic diagram of the embodiment of the invention.
Embodiment
The present invention will be further described below in conjunction with drawings and Examples.
Basic thought of the present invention is to utilize permanent magnetic material to form high-intensity magnetic field at the electronic equipment chassis space outerpace, when outside charged particle during with certain initial velocity incident, charged particle deflects and can not drop on or penetrate the cabinet housing under the effect of high-intensity magnetic field, thereby can prevent and reduce outside charged particle to the influence of internal electronic equipment.
A kind of method that strengthens electronic equipment tolerance charged particle irradiation behaviour has been described as shown in Figure 1: fix a pair of permanent magnetic material 4 at electronic equipment seal case 2 non-perpendicular to the opposite end surface of charged particle incident direction, 9, and the polarity inequality of permanent magnetic material opposite face, this moment, permanent magnetic material can form high-intensity magnetic field in the certain space outside seal case; When the magnetic field intensity that produces when a pair of permanent magnetic material 4,9 that is installed in seal case 2 outsides is B, if the external height of seal case 2 greater than
The charged particle of (wherein v is the initial velocity of incident charged particle, and q/m is the charged particle charge-mass ratio) incident all can deflect and can not drop on the seal case, thereby avoid charged particle to penetrate cabinet its internal electronic equipment is impacted.
As shown in Figure 2, the present invention includes compositions such as external shield housing 1, the seal case 2 of being with a pair of permanent magnet 4,9, inner shield housing 3, kovar alloy leading-off rods 7 and copper material liquid cooling conduit 6.If the charged particle of outside incident is the α particle, its incidence rate is 3 * 10
5M/s, charge-mass ratio is 5 * 10
7C/kg.Install, fix a pair of permanent magnetic material 4,9 at seal case 2 two relative end faces, its residual magnetic flux density is 1.28T～1.32T, and the magnetic polarity inequality of relative direction, this a pair of permanent magnetic material 4,9 can produce the high-intensity magnetic field (as shown in Figure 3) that is not less than 1T in the Space L scope around seal case 2 so.At this moment, between the outer wall 10 of the inwall 11 of external shield housing 1 and seal case 2 at least apart
For 12mm(as shown in Figure 4).
Like this, electronic circuit board and other electric unit that needs protection can be fixed on seal case 2 inside, its electric signal is transmitted by the kovar alloy leading-off rods 7 on the seal case 2, and its internal heat dissipating can be derived by copper material liquid cooling conduit 6.Minimum range is not less than 12mm between the inwall 11 of external shield housing 1 and the outer wall 10 of seal case 2.The α particle deflection of outside incident can be left seal case 2, thereby can prevent effectively that charged α particle penetration sealed cabinet casing 2 from impacting the electronic circuit board of its inside and the electronic equipment 13 of other radiation sensitive.Seal case 2 is fixed on external shield box house (as shown in Figure 5) by four copper mounting brackets 12.
External shield housing 1, inner shield housing 3 materials are permalloy, and its relative permeability can reach more than 100000, and high-intensity magnetic field is had good shield effectiveness.The material of seal case 2 is high magnetic permeability electrical pure iron (its relative permeability is greater than 9700).Be equipped with on the seal case 2 and adopt glass insulator 8 and ceramic material 5 kovar alloy leading-off rods 7 and the copper material liquid cooling conduit 6 of sealing-in respectively, be respectively applied to transmit electric signal and inner thermal control.
The content that is not described in detail in the specification of the present invention belongs to those skilled in the art's known technology.
Below by reference to the accompanying drawings the specific embodiment of the present invention is illustrated; but these explanations can not be understood that to have limited scope of the present invention; protection scope of the present invention is limited by the claims of enclosing, and any change on claim of the present invention basis all is protection scope of the present invention.
Claims (3)
1. an electronic equipment chassis that has charged particle radiation protection function is characterized in that comprising: seal case (2), external shield housing (1) and the inner shield housing (3) of band permanent magnet (4,9); Fix a pair of permanent magnetic material (4,9) at seal case (2) non-perpendicular to the opposite end surface of charged particle incident direction, and the polarity inequality of two permanent magnetic material opposite faces, thereby high-intensity magnetic field outside seal case (2), formed in the certain space L; At the outer surface (10) of distance stuffing box housing (2) the space mounting external shield housing (1) greater than L; Wherein the spacing of the outer surface (10) of the inwall (11) of external shield housing (1) and seal case (2) is greater than L, realizes the magnetostatic field shielding of external inside of shield casings and can not influence outside other equipment of casing; Install and fix inner shield housing (3) at stuffing box housing (2) inner close fitting inwall, realize the magnetostatic field shielding inner to seal case (2); Electronic equipment (13) is placed in the seal case (2) that permanent magnet has been installed, and its electric signal is by leading-off rods on the seal case (7) or sealed electrical connector and external equipment realization interconnection, and thermal control is then by liquid cooling pipeline (6) and peripheral component interconnect; Whole seal case (2) is fixed on external shield housing (1) inside by the mounting bracket (12) of diamagnetic material.
2. electronic equipment chassis according to claim 1, it is characterized in that: described external shield housing (1), seal case shell (2) and inner shield case material (3) are high-permeability material, and namely relative permeability is not less than 100000 ferromagnetic material.
3. electronic equipment chassis according to claim 1 is characterized in that: described
Wherein v is the initial velocity of incident charged particle, and q/m is the charged particle charge-mass ratio, and B is magnetic field intensity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310172877.4A CN103298304B (en) | 2013-05-10 | 2013-05-10 | A kind of electronic equipment chassis having space charged particle radiation protection function |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310172877.4A CN103298304B (en) | 2013-05-10 | 2013-05-10 | A kind of electronic equipment chassis having space charged particle radiation protection function |
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| Publication Number | Publication Date |
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| CN103298304A true CN103298304A (en) | 2013-09-11 |
| CN103298304B CN103298304B (en) | 2016-08-10 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106569055A (en) * | 2016-10-19 | 2017-04-19 | 哈尔滨工业大学 | Electronic material and device heat cycle and charged particle irradiation combined environment test method |
| CN107369477A (en) * | 2017-07-06 | 2017-11-21 | 南京航空航天大学 | The high energy electron screening arrangement of multiple solutions under a kind of magnetic field condition |
| CN109041554A (en) * | 2018-06-01 | 2018-12-18 | 芯创智（北京）微电子有限公司 | The method and device of electronic reliability is protected when a kind of ionizing particle bombards |
| CN111540495A (en) * | 2020-05-28 | 2020-08-14 | 中核环保产业有限公司 | Special device for preventing foreign matters in annular space of spent fuel dry-method storage sealed storage tank |
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| US4845402A (en) * | 1986-05-02 | 1989-07-04 | U.S. Philips Corporation | Cathode ray display tube having external magnetic shield |
| JPH11223697A (en) * | 1998-02-05 | 1999-08-17 | Mitsubishi Electric Corp | Electronic equipment |
| CN2925001Y (en) * | 2006-03-18 | 2007-07-18 | 阮树成 | High-performance electronic ballast for controlling electromagnetic interference |
| CN201014213Y (en) * | 2006-11-06 | 2008-01-30 | 陈婧 | Oil products pipe transfusion electrostatic arrester |
| CN101180685A (en) * | 2005-05-19 | 2008-05-14 | 裴秉根 | Apparatus for shielding harmful radiation and manufacturing method thereof |
| CN201169388Y (en) * | 2007-12-04 | 2008-12-24 | 北京卫星环境工程研究所 | Active protecting device of spacecraft for high-energy charged particle |
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2013
- 2013-05-10 CN CN201310172877.4A patent/CN103298304B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4845402A (en) * | 1986-05-02 | 1989-07-04 | U.S. Philips Corporation | Cathode ray display tube having external magnetic shield |
| JPH11223697A (en) * | 1998-02-05 | 1999-08-17 | Mitsubishi Electric Corp | Electronic equipment |
| CN101180685A (en) * | 2005-05-19 | 2008-05-14 | 裴秉根 | Apparatus for shielding harmful radiation and manufacturing method thereof |
| CN2925001Y (en) * | 2006-03-18 | 2007-07-18 | 阮树成 | High-performance electronic ballast for controlling electromagnetic interference |
| CN201014213Y (en) * | 2006-11-06 | 2008-01-30 | 陈婧 | Oil products pipe transfusion electrostatic arrester |
| CN201169388Y (en) * | 2007-12-04 | 2008-12-24 | 北京卫星环境工程研究所 | Active protecting device of spacecraft for high-energy charged particle |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106569055A (en) * | 2016-10-19 | 2017-04-19 | 哈尔滨工业大学 | Electronic material and device heat cycle and charged particle irradiation combined environment test method |
| CN107369477A (en) * | 2017-07-06 | 2017-11-21 | 南京航空航天大学 | The high energy electron screening arrangement of multiple solutions under a kind of magnetic field condition |
| CN109041554A (en) * | 2018-06-01 | 2018-12-18 | 芯创智（北京）微电子有限公司 | The method and device of electronic reliability is protected when a kind of ionizing particle bombards |
| CN111540495A (en) * | 2020-05-28 | 2020-08-14 | 中核环保产业有限公司 | Special device for preventing foreign matters in annular space of spent fuel dry-method storage sealed storage tank |
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| Publication number | Publication date |
|---|---|
| CN103298304B (en) | 2016-08-10 |
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