CN103687451B - For the optimizing thermal solution structure of inertial navigation series products accurate device - Google Patents
For the optimizing thermal solution structure of inertial navigation series products accurate device Download PDFInfo
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- CN103687451B CN103687451B CN201310683769.3A CN201310683769A CN103687451B CN 103687451 B CN103687451 B CN 103687451B CN 201310683769 A CN201310683769 A CN 201310683769A CN 103687451 B CN103687451 B CN 103687451B
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Abstract
A kind of optimizing thermal solution structure for inertial navigation series products accurate device is provided, accurate device is included the soft silica gel conducting strip of filling in the installing hole of casing and in both gaps in, described soft silica gel conducting strip one side and accurate device surface close contact, soft silica gel conducting strip another side and the heat abstractor rear surface close contact being fixedly connected with casing. In the gap of the present invention between accurate device and casing, add soft silica gel conducting strip, to eliminate the air gap, reduce accurate device with the thermal contact resistance between casing, the heat that accurate device is produced conducts to rapidly in tank surface, keep interiors of products thermal field to reach rapidly balanced, reduce the impact of environment temperature on accurate device performance indications, utilized heat loss through conduction, heat loss through convection and three kinds of thermaltransmission modes of heat loss through radiation to dispel the heat simultaneously, radiating effect is better, reliability and the service life of product are improved, be easy to realize, availability is strong.
Description
Technical field
The invention belongs to inertial navigation series products thermal design technical field, be specifically related to a kind of for inertial navigationThe optimizing thermal solution structure of accurate device in series products.
Background technology
For inertial navigation electronic product, level of integrated system constantly strengthens, and system power dissipation constantly increasesGreatly, box volume constantly reduces, and causes accurate device surface and environment temperature rise aggravation, directly affects productThe usefulness of each functional module, thus the reduction of accurate device performance, life and reliability caused. In addition,Temperature is larger to the Accuracy of accurate device, and when temperature raises, parameter drift meeting increases, thereby leadsThe performance, the life-span that cause accurate device reduce, and affect the most at last performance and the life-span of product, therefore to precisionIt is a very important link in product thermal design that device carries out radiating treatment. Existing inertial navigation class electricitySub-product mainly dispels the heat with heat conduction, convection current and radiation delivery mode. Every kind of heat transfer form passesPass heat and its thermal resistance is inversely proportional to, under limit, thermal balance heat flow, thermal resistance and temperature are that heat is establishedImportant parameter in meter. The cooling measure that requirement adopts in engineering application is effective, simple, economical,And be applicable to specific electric and plant equipment, environmental condition, meet function, Performance And Reliability simultaneouslyRequirement, is therefore necessary to improve.
Summary of the invention
The technical problem that the present invention solves: a kind of faling apart for inertial navigation series products accurate device is providedHeat is optimized structure, and by add soft silica gel conducting strip between accurate device and casing, object is to reduce essenceThe surface temperature of close device, makes rapidly interiors of products thermal field balance, improve accurate device environmental suitability,Heat dispersion and reliability, extend life of product.
The technical solution used in the present invention: for the optimizing thermal solution knot of inertial navigation series products accurate deviceStructure, accurate device is included the soft silica gel conducting strip of filling in the installing hole of casing and in both gaps, institute inState soft silica gel conducting strip one side and accurate device surface close contact, soft silica gel conducting strip another side andThe heat abstractor rear surface close contact being fixedly connected with casing.
Wherein, described heat abstractor is finned radiator, and described finned radiator is by mounting screw and casingBe connected to one.
Further, described finned radiator adopts aluminium to make.
The present invention's advantage compared with prior art:
1, the present invention has utilized heat loss through conduction, heat loss through convection and three kinds of thermaltransmission modes of heat loss through radiation fully,It is a kind of heat dissipating method of novel mixing heat-exchange;
2, in the present invention, in gap in accurate device is included casing installing hole in and between the two, add softSilica gel conducting strip, to eliminate the air gap, reduces accurate device with the thermal contact resistance between casing, makes precisionThe heat that device produces conducts to rapidly in tank surface, keeps interiors of products thermal field to reach rapidly balanced,Reduce the impact of environment temperature on accurate device performance indications;
3, the present invention has designed rib type radiator at box cover outer surface, increases convection current heat conduction and radiation and changesHot side is long-pending, effectively conducts heat in casing external environment condition;
4,, by using FLOTHERM heat to analyze simulation software, be to adopting under hot conditions in environment temperatureOptimize the accurate device of heat abstractor and carry out hot simulation analysis, and utilize Finite Volume Method for Air to carry out fluid meterCalculate, accurate device surface temperature has obtained effective control, and radiating effect is better.
5, the design of accurate device heat abstractor and optimization have good improvement to temperature rise control, make closed structureInner thermal field is balanced rapidly, has improved the reliability of product;
6, with respect to not installing heat-transfer device additional, do not install soft silica gel conducting strip or heat biography additional between heat-transfer deviceGuide face amasss inadequate Thermal design, has greatly improved the operating ambient temperature of accurate device, has reduced ringThe impact of border temperature on properties of product, the service life of having improved product.
Brief description of the drawings
Fig. 1 is structural representation of the present invention;
Fig. 2 is finned radiator cross section structure schematic diagram of the present invention;
Fig. 3 is one embodiment of the present of invention (optical fibre gyro) heat-transfer device structure chart;
Fig. 4 is finned radiator structural representation of the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing 1-4, a kind of embodiment of the present invention is described.
For the optimizing thermal solution structure of inertial navigation series products accurate device, accurate device 1 is included casing 2 inInstalling hole in and the soft silica gel conducting strip 3 of filling in both gap, described soft silica gel conducting strip 3 oneFace and the surperficial close contact of accurate device 1, soft silica gel conducting strip 3 another sides and even fixing with casing 2The heat abstractor 4 rear surface close contacts that connect. Specifically, described heat abstractor 4 is finned radiator,Described finned radiator is connected to one by mounting screw and casing 2, and finned radiator adopts aluminiumMaterial is made.
As everyone knows, inertial navigation electronic product, structural design is all-sealed structure, internal heat masterIf by heat conduct, radiation heat transfer mode reaches casing 2, then by cross-ventilation, radiation heat transfer transmissionHeat is taken to the object that reaches heat radiation in external environment condition. Therefore, accurate in inertial navigation electronic productThe optimizing thermal solution structure of device 1, mainly realizes by following three aspects: the one, accurate device 1 generates heatFace is installed near casing 2: the heat generating components of accurate device 1 is installed at the position near box body wall, hadBe beneficial to heat conduction; By the rear surface of stress soft silica gel conducting strip 3 one sides and heat abstractor 4 in the middle of makingClose contact, another side and the surperficial close contact of accurate device 1, effectively reduce thermal resistance, realized heatThe quick conduction of amount; The 2nd, the soft heat-transfer device of design one-level: accurate device 1 contacts with casing 2 inwalls,Have certain gap, gap has been full of air, has hindered the conduction of heat. Adopt soft silica gel heat conductionFilm 3, as intermediary, is effectively filled any irregular space at contact-making surface place, increases effective contact-making surfaceLong-pending, reduce thermal contact resistance, can effectively the heat of accurate device 1 be reached to casing 2, real quickly and effectivelyThe heat transmission at existing heating position and heat radiation position. The 3rd, design secondary finned radiator, for accurate device 1Heat radiation, by soft silica gel conducting strip 3, heat is transferred to rapidly on casing 2, then is fallen apart by finHot device utilization conduction, radiation, convection techniques are by transfer of heat. For traditional quenching method, engineeringRealize more complicatedly, rely on merely the type of cooling of casing 2 surface radiatings, can not meet again the diffusion of heat.There is the mode of a finned radiator to have casing 2 surface design near accurate device 1 radiating surfaceImitate the transfer of heat. Finned radiator adopts the belt rib in square-section, and material adopts aluminium, signalFigure is shown in Fig. 2, and wherein δ represents that rib is thick, and L represents rib high (L=r2-r1), according to the heat radiation of accurate device 1Need, can adjust the high and appearance and size of the thick and rib of rib.
Taking the optimizing thermal solution structure of optical fibre gyro in optical fiber inertial navigation series products as example, design describe asUnder:
1, analyze thermal source, heat generating components (accurate device 1) is installed near casing 2: by optical fiber topSpiral shell heat distributes and detects, and the thermal source of optical fibre gyro is mainly distributed in mounting base, determines optical fibre gyroMounting base is installed to cabinet wall direction;
2, the soft heat-transfer device of one-level: be mainly that mounting base is fallen apart to the heat dissipation design of optical fibre gyroHeat is filled soft silica gel conducting strip 3 in the middle of optical fibre gyro mounting base and box body wall, can effectively reduceThe gap of contact-making surface, reaches casing 2 by optical fibre gyro surface heat rapidly, the heat-transfer device knot of optical fibre gyroFig. 3 is shown in by composition.
3, secondary finned radiator: optical fibre gyro heat reaches after casing 2 by the soft heat-transfer device of one-level,Again by finned radiator by Btu utilization conduction, radiation, convection type by transfer of heat, be dissipated to outsideEnvironment, the heat abstractor of optical fibre gyro is designed to a square finned radiator. Radiator profile is shown in Fig. 4.Rib is thick is the high 2mm of being of 1.5mm and rib.
4, install, the heating of optical fibre gyro is towards box body wall, by 8 screws, finned radiator is solidTightly on casing 2, the rear table of soft silica gel conducting strip 3 one sides and finned radiator in the middle of making by stressFace close contact, another side and gyro surface close contact, effectively realized the quick conduction of heat.Fig. 4 is shown in installation.
Practicality general introduction:
1, the present invention is applicable to the optimizing thermal solution structure to the accurate device 1 in inertial navigation electronic productDesign;
2, the heat exchange pattern of the present invention's design is easy to realize, and has reduced whole casing 2 structures are carried out to heatConduction, thermal-radiating designing requirement;
3, the accurate device conduction device of the present invention's design, is easy to realize, and availability is strong;
4, aluminum and soft silica gel conducting strip 3 are easy to purchase, process and assemble, and cost performance is higher, canEffectively to improve performance and the life-span of product.
Above-described embodiment, is preferred embodiment of the present invention, is not used for limiting the scope of the present invention,Therefore the equivalence of being done with content described in the claims in the present invention all changes, and all should be included in right of the present invention and wantWithin asking scope.
Claims (2)
1. for the optimizing thermal solution structure of inertial navigation series products accurate device, it is characterized in that: precisionDevice (1) is included the soft silica gel conducting strip of filling (3) in the installing hole of casing (2) and in both gaps in,Described soft silica gel conducting strip (3) one side and the surperficial close contact of accurate device (1), soft silica gel is ledBacking (3) another side and heat abstractor (4) the rear surface close contact being fixedly connected with casing (2);Described heat abstractor (4) is finned radiator, and described finned radiator is by mounting screw and casing (2)Be connected to one.
2. the knot of the optimizing thermal solution for inertial navigation series products accurate device according to claim 1Structure, is characterized in that: described finned radiator adopts aluminium to make.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310683769.3A CN103687451B (en) | 2013-12-13 | 2013-12-13 | For the optimizing thermal solution structure of inertial navigation series products accurate device |
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| CN201310683769.3A CN103687451B (en) | 2013-12-13 | 2013-12-13 | For the optimizing thermal solution structure of inertial navigation series products accurate device |
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| CN103687451A CN103687451A (en) | 2014-03-26 |
| CN103687451B true CN103687451B (en) | 2016-05-11 |
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| CN106549276A (en) * | 2016-10-18 | 2017-03-29 | 成都益睿信科技有限公司 | A kind of excellent high power electronic product private jack plate of radiating effect |
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| JP2001308233A (en) * | 2000-04-20 | 2001-11-02 | Toshiba Corp | Cooling structure of semiconductor element for electric power and electric power transformer |
| CN101650010A (en) * | 2008-08-14 | 2010-02-17 | 鸿富锦精密工业（深圳）有限公司 | LED light source module and light machine applied by same |
| CN201636577U (en) * | 2010-01-07 | 2010-11-17 | 育德科技有限公司 | Lighting device with high heat dissipation efficiency |
| CN202216090U (en) * | 2011-08-17 | 2012-05-09 | 浙江英博照明科技有限公司 | LED (light emitting diode) street light |
| CN102522679A (en) * | 2011-11-28 | 2012-06-27 | 武汉长盈通光电技术有限公司 | Amplified spontaneous emission (ASE) light source |
| CN202998706U (en) * | 2012-11-23 | 2013-06-12 | 大陆汽车投资（上海）有限公司 | Electronic module and vehicle-mounted communication device having same |
| CN203176970U (en) * | 2013-04-22 | 2013-09-04 | 福建鼎坤电子科技有限公司 | Light-emitting diode (LED) street lamp high in tightness |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR950013558B1 (en) * | 1990-11-28 | 1995-11-08 | 가부시끼가이샤 히다찌세이사꾸쇼 | Cooling system of electronic computer |
| JP2001308233A (en) * | 2000-04-20 | 2001-11-02 | Toshiba Corp | Cooling structure of semiconductor element for electric power and electric power transformer |
| CN101650010A (en) * | 2008-08-14 | 2010-02-17 | 鸿富锦精密工业（深圳）有限公司 | LED light source module and light machine applied by same |
| CN201636577U (en) * | 2010-01-07 | 2010-11-17 | 育德科技有限公司 | Lighting device with high heat dissipation efficiency |
| CN202216090U (en) * | 2011-08-17 | 2012-05-09 | 浙江英博照明科技有限公司 | LED (light emitting diode) street light |
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