CN205608828U - Flight data record protection memory excels in - Google Patents
Flight data record protection memory excels in Download PDFInfo
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- CN205608828U CN205608828U CN201620222350.7U CN201620222350U CN205608828U CN 205608828 U CN205608828 U CN 205608828U CN 201620222350 U CN201620222350 U CN 201620222350U CN 205608828 U CN205608828 U CN 205608828U
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Abstract
The utility model discloses a flight data record protection memory excels in, does aim at providing one kind and satisfies TSO the crash that C124c standard stipulate is survived and is tested, can also bear acceleration peak value 80000g's thump, and ultimate storage data can not lose, protection memory that the reliability is high. The utility model discloses a following technical scheme realizes: outer metal casing (1) is the foamed metal layer for the titanium alloy sphere body, damping sealing layer casing (2), and inner layer metal casing (3) are the high -strength steel layer, and three -layer metal casing passes through the connecting screw and connects the stack, adopts interference fit to form, wherein, the insulating layer is formed by coating material, the super thermal insulation material of nanometer, the combination of phase change material triplex, damping sealing layer casing by the metal -cored sleeve of the high strength body, buffering shock attenuation glue, the triplex is glued to the electronic packaging, the cladding of memory printing board is in core casing (5) cavity that the insulating layer surrounded, it has the buffering shock attenuation to glue to fill in the cavity.
Description
Technical field
This utility model relates to the safeguard structure of a kind of crash survivor memory being applied to flight data recorder.
Background technology
The storage chip of flight data recorder crash survivor memory is preserved the relevant flight parameter in aircraft flight and voice, is mainly used in the accident analysis of wrecked aircraft.The most domestic requirement for crash survivor memory is: 1. disclosure satisfy that the crash survivor sequence test of U.S.'s TSO-C124b prescribed by standard.2. meeting initial velocity is 340m/s 370m/s, the acceleration peak value rocket sledge high impact shock test requirement more than 15000g.
What crash survivor memory protective casing sheathing material was the most more common mainly has two kinds: rustless steel and titanium alloy, protective casing structure generally five part composition such as single-layer metal shell, thermal insulation layer, metallic core housing, sealant, core from outside to inside.Metal shell Main Function is resistant to foreign impacts and destroys；The main heat insulation protective action of thermal insulation layer；Metallic core housing primarily serves the purpose of buffering, vibration damping protection.But, current crash survivor memory is actual when carrying out 15000g Rocket sled test, and metal shell once ruptures, and thermal insulation layer is the most defeated and dispersed, and interior metal shell damage ratio is more serious, causing the storage chip corrupted data in core, overall structure cannot guarantee data security.
Summary of the invention
This utility model purpose is the weak point existed for prior art, there is provided a kind of crash meeting TSO-C124c prescribed by standard to survive to test, the thump of acceleration peak value 80000g can also be born, final storage data will not be lost, the high-strength flight data recording shielded storage device that reliability is high.
This utility model solves its technical problem and be the technical scheme is that a kind of high-strength flight data recording shielded storage device, including, deposit the outer layer metal housing 1 of memorizer printed board 7, vibration damping sealant housing 2, inner layer metal housing 3 and thermal insulation layer 4, it is characterized in that: outer layer metal housing 1 is titanium alloy spherical surface body, vibration damping sealant housing 2 is foam metal layer, inner layer metal housing 3 is high-strength steel layer, three-layer metal housing is connected by screw superposition, uses interference fit to form；Wherein, thermal insulation layer is combined by coating material, nano super heat-barrier material, phase-change material three part；Vibration damping sealant housing 2 is made up of high duty metal core body housing, bumper and absorbing shock glue, Electronic Packaging glue three part, and memorizer printed board 7 is coated in core body housing 5 cavity that thermal insulation layer 4 surrounds, and is filled with bumper and absorbing shock glue 6 in cavity.
This utility model has the advantages that compared to prior art.
This utility model is connected by screw the three-layer metal housing of superposition interference fit, meet the crash survival test of up-to-date flight data recorder technical standard specification TSO-C124c prescribed by standard, the thump of acceleration peak value 80000g can also be born, portion's storage chip data are the most reliable, it is able to ensure that crash survivor memory structure is the most complete, final storage data will not be lost, and improves the survival of crash survivor memory, and reliability is high.
The flight data recording storage being mainly made up of metal shell, thermal insulation layer, vibration damping sealant three part from outside to inside, outermost layer forged titanium alloy, innermost layer are through extruded high intensity special steel, and intermediate layer is the foam metal that intensity is higher；Thermal insulation layer is with aerosil main body, and decalescence material is as auxiliary, and its void size and framing structure are nanometer scale, has the lowest heat conductivity and the lowest density.Can bear the acceleration peak value thump more than 15000g, after test, storage chip data are recovered smoothly；Outer layer metal shell structure at least one layer intact bad, the beneficially search of crash survivor memory after aviation accident.
This utility model not only can bear height, middle temperature bonfire test, deep sea pressure and sea water immersion test, corrosive liquid soak test, static extruding and penetration test during accident, and the thump effect that acceleration peak value is 80000g can be born, it is ensured that after test, storage chip data intact loses.This structure disclosure satisfy that the lowest performance specification of flight data recorder technical standard specification latest edition TSO-C124c defined, the high impact shock test of acceleration peak value 80000g can also be born, the at least one layer of preservation of test rear casing body is complete, and chip stores data is safe and complete.
Accompanying drawing explanation
Fig. 1 is this utility model crash survivor memory cross section view.
In figure: 1 outer layer metal housing, 2 intermediate layer bumper housings, 3 inner layer metal housings, 4 thermal insulation layers, 5 core body housings, 6 bumper and absorbing shock glue, 7 memorizer printed boards, 8 attachment screws, 9 protective cover plates, 10 beacon installing racks, 11 subsea beacons.
Specific embodiment
In embodiment described below, a kind of high-strength flight data recording shielded storage device, including, deposit the outer layer metal housing 1 of memorizer printed board 7, vibration damping sealant housing 2, inner layer metal housing 3 and thermal insulation layer 4, outer layer metal housing 1 be titanium alloy spherical surface body, vibration damping sealant housing 2 be foam metal layer, inner layer metal housing 3 is high-strength steel layer, and three-layer metal housing is connected by screw superposition, uses interference fit to form；Wherein, it is to absorb heat that thermal insulation layer is combined Main Function by coating material, nano super heat-barrier material, phase-change material three part, cuts off incoming to core of outside heat.Vibration damping sealant housing 2 is made up of high duty metal core body housing, bumper and absorbing shock glue, Electronic Packaging glue three part, and memorizer printed board 7 is coated in core body housing 5 cavity that thermal insulation layer 4 surrounds, and is filled with bumper and absorbing shock glue 6 in cavity.Outermost layer titanium alloy layer spherical surface body Main Function is that the tear of high-ductility resisting structure damages；Intermediate layer foam metal layer can be the foamed aluminium housing of certain void ratio, and Main Function is buffering, energy-absorbing, filtering.Inner layer metal housing 3 is the high-strength steel layer bearing mechanical damage.Outer layer metal housing (1), vibration damping sealant housing (2) and inner layer metal housing (3), this three-layer metal housing is connected by screw superposition, uses interference fit to form；Thermal insulation layer absorbs heat by coating material, nano super heat-barrier material and phase-change material, cuts off incoming to core of outside heat.
Vibration damping sealant housing 2 is made up of high duty metal core body housing, bumper and absorbing shock glue, Electronic Packaging glue three part, is placed in core body housing by parcel storage chip.Wherein bumper and absorbing shock glue is a kind of transparent, extremely soft, that have certain toughness, Silica hydrogel of suitable crosslinking；Electronic Packaging glue is a kind of organic silicon potting adhesive, double-component, redness, excellent heat conductivility, low modulus and quick repairing performance.Memorizer printed board 7 is coated in core body housing 5 cavity that thermal insulation layer 4 surrounds, and is filled with bumper and absorbing shock glue 6 in cavity.Wherein, high duty metal core body housing Main Function is resistant to mechanical shock；Bumper and absorbing shock glue Main Function is buffer mechanism ripple, temperature shock；Electronic Packaging glue Main Function is to seal protection storage chip, and prevents the corrosive liquids corrosion to printed circuit board.Memorizer printed board 7 is suspended in Electronic Packaging glue completely, is wrapped up by Electronic Packaging glue, not in use by being mechanically connected fixed constraint.First pass through attachment screw 8 between three layers of housing to be connected with protective cover plate 9 by shell body, then by screw, protective cover plate is directly connected with internal layer shell.Subsea beacon 11 is connected firmly in the side of outer layer metal shell 1 by beacon installing rack 10.
Claims (8)
1. a high-strength flight data recording shielded storage device, including, deposit the outer layer metal housing (1) of memorizer printed board (7), vibration damping sealant housing (2), inner layer metal housing (3) and thermal insulation layer (4), it is characterized in that: outer layer metal housing (1) be titanium alloy spherical surface body, vibration damping sealant housing (2) be foam metal layer, inner layer metal housing (3) is high-strength steel layer, three-layer metal housing connects superposition by attachment screw, uses interference fit to form；Memorizer printed board (7) is coated in core body housing (5) cavity that thermal insulation layer (4) surrounds, and is filled with bumper and absorbing shock glue (6) in cavity.
High-strength flight data recording shielded storage device the most according to claim 1, it is characterised in that intermediate layer foam metal layer is the foamed aluminium housing of certain void ratio.
High-strength flight data recording shielded storage device the most according to claim 1, it is characterised in that thermal insulation layer absorbs heat by coating material, nano super heat-barrier material and phase-change material, cuts off incoming to core of outside heat.
High-strength flight data recording shielded storage device the most according to claim 1, it is characterised in that memorizer printed board (7) is suspended in Electronic Packaging glue, is wrapped up by Electronic Packaging glue.
High-strength flight data recording shielded storage device the most according to claim 1, it is characterized in that, shell body is connected with protective cover plate (9) by outer layer metal housing (1), vibration damping sealant housing (2) and inner layer metal housing (3) by attachment screw (8), is more directly connected with internal layer shell by protective cover plate by screw.
High-strength flight data recording shielded storage device the most according to claim 1, it is characterised in that vibration damping sealant housing (2) is made up of high duty metal core body housing, bumper and absorbing shock glue, Electronic Packaging glue three part.
High-strength flight data recording shielded storage device the most according to claim 1, it is characterised in that bumper and absorbing shock glue is Silica hydrogel.
High-strength flight data recording shielded storage device the most according to claim 1, it is characterised in that Electronic Packaging glue is the organic silicon potting adhesive of a kind of double-component.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620222350.7U CN205608828U (en) | 2016-03-22 | 2016-03-22 | Flight data record protection memory excels in |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201620222350.7U CN205608828U (en) | 2016-03-22 | 2016-03-22 | Flight data record protection memory excels in |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108597547A (en) * | 2018-04-17 | 2018-09-28 | 中北大学 | Back Word formula encapsulation of data memory safeguard structure |
| CN113190171A (en) * | 2021-04-02 | 2021-07-30 | 中国工程物理研究院总体工程研究所 | Data storage method based on high-speed impact environment |
| CN113466894A (en) * | 2021-06-09 | 2021-10-01 | 航天恒星科技有限公司 | Protection system of emergency positioning transmitter |
| CN114267097A (en) * | 2021-12-07 | 2022-04-01 | 中国科学院工程热物理研究所 | Cell filling type multilayer ball structure and data recorder |
| CN114718986A (en) * | 2022-04-26 | 2022-07-08 | 中国电子科技集团公司第二十六研究所 | Full-suspension vibration isolation and isolation method and structure for electronic equipment |
-
2016
- 2016-03-22 CN CN201620222350.7U patent/CN205608828U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108597547A (en) * | 2018-04-17 | 2018-09-28 | 中北大学 | Back Word formula encapsulation of data memory safeguard structure |
| CN113190171A (en) * | 2021-04-02 | 2021-07-30 | 中国工程物理研究院总体工程研究所 | Data storage method based on high-speed impact environment |
| CN113466894A (en) * | 2021-06-09 | 2021-10-01 | 航天恒星科技有限公司 | Protection system of emergency positioning transmitter |
| CN114267097A (en) * | 2021-12-07 | 2022-04-01 | 中国科学院工程热物理研究所 | Cell filling type multilayer ball structure and data recorder |
| CN114718986A (en) * | 2022-04-26 | 2022-07-08 | 中国电子科技集团公司第二十六研究所 | Full-suspension vibration isolation and isolation method and structure for electronic equipment |
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