CN2733467Y - Survival memory for aircraft crash - Google Patents

Survival memory for aircraft crash Download PDF

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Publication number
CN2733467Y
CN2733467Y CN 200420033911 CN200420033911U CN2733467Y CN 2733467 Y CN2733467 Y CN 2733467Y CN 200420033911 CN200420033911 CN 200420033911 CN 200420033911 U CN200420033911 U CN 200420033911U CN 2733467 Y CN2733467 Y CN 2733467Y
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China
Prior art keywords
survival
heat
coating
heat insulation
shell
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Expired - Lifetime
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CN 200420033911
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Chinese (zh)
Inventor
李华
王秀珍
郑静
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Chengdu CAIC Electronics Co Ltd
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CHENGDU AVIATION INSTRUMENT Co
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Priority to CN 200420033911 priority Critical patent/CN2733467Y/en
Application granted granted Critical
Publication of CN2733467Y publication Critical patent/CN2733467Y/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

The utility model relates to a survival memory for aircraft crash, comprising a protection shell, the inner shell of a storage for storing data, the material of a heat insulation filling layer, and the sealing cover of detachability. The protection shell and the sealing cover are cylindric top domes made of the material of martensite precipitation hardening stainless steels; the material of the insulating layer filled in the protection shell is the material which uses silicate powder lot as a body, has a definite porosity, and can create the effect of chemical decomposing heat absorption. The joint of each interlayer in the shell is a non-adhesion tight fit. The surface of the outer layer of the protection shell is coated with the intumescent coating of heat insulation. The adopted cylindric top dome is the technical effects like using hands to knead eggs which are not easy to break on mechanics. Each equidistance isothermal transfer zone is formed, which homogeneously transfer heat, and overcomes the unbalance thermomechanic breakage of heat transmission. The insulation material of energy storage of the insulating layer is adopted, which has small thermal conductivity, and decomposes to actively absorb heat when heating. The survival memory for aircraft crash has the advantages of small volume, big storage capacity and high survival ability; the heat insulation of the outer layer coating can delay.

Description

Air crash survival storer
Technical field
The utility model relates to a kind of air crash survival storer, relates in particular to " black box " that a kind of register of being made up of protective casing and recording medium two large divisions with crash survival capability or people are commonly called as.It is data storage, preservation parts on flight parameter registering instrument, the voice record instrument.Make in aircraft accident, can complete preservation flight parameter registering instrument or voice record instrument recorded data after the aircraft accident.Be used for analysis to aircraft accident.It must satisfy the accident survival and require TSO-124a prescribed by standard crash survival test, and the intensity that promptly experiences a shock is the impact of 3400g, 6.5ms; The high temperature that stood temperature and be 1100 ℃, 60 minutes is burnt, and stands temperature and be 260 ℃, 10 hours low temperature, stands 30 days, and pressure is 60Mpa, and equivalent depth is the sea water immersion of 6000m; Also requirement can be born the dipping of multiple fluid, fire extinguishing agent and strict anti-ly test such as be penetrated and the assurance data are not lost.
Technical background
The domestic crash survival storer that is extensive use of at present aboard, its crash survival capability can only reach the TSO-124 standard mostly, does not promptly have 260 ℃, the middle temperature flame barbecue of duration 10h.The duration of 1100 ℃ thermal-flame barbecue is 30min but not 1h.Common structure is made up of inside and outside double layer of metal housing and packing material.The fibrous insulating material and the silicate heat-barrier material of filling in the middle of it rely on lower heat-conduction coefficient to come heat insulation fully and vibration damping impacts the electronic component of laying in the housing.Wherein the high melting-point wax that adopts is filled embedding, needs to guarantee that embedding liquid soaks into the gapped bubble that there is no fully.When embedding, need guarantee the generation of the mobile of liquid and prevention bubble, complex process, so manufacturability is poor, and price is higher.Because embedding is a kind of irreversible technology,, just be difficult to casting glue is removed in case embedding is finished; So also there is the problem of maintenance difficult in it.
Prior art adopts more technical scheme to be the rectangle shell made with stainless steel or titanium alloy material and to form the survival storer by the rectangle inner casing that aluminium alloy is made.Such as China Patent No. is 93219621.7 disclosed " airplane data register shell " utility model patent, the structure that comes to this.The shortcoming that this rectangle housing forms six rectangle planes is: outer line of force is attacked acting surface directly, force localization, and external impacts is big, the impact energy height.So its crash survival grade can only reach lower TSO-124 or TSO-51 standard, be difficult to reach the requirement of the standard of TSO-124A.If will reach the shock resistance requirement of this standard, will increase the thickness of housing, like this, just will increase the volume and weight of entire product.This to the aircraft of high price value such as gold, especially be not calculate concerning opportunity of combat.
The utility model is further developing and improving prior art.
Summary of the invention
The purpose of this utility model is at the deficiencies in the prior art part, provides a kind of volume little, in light weight, and memory space is big, and the survival capability height can satisfy the TSO-124A standard, can improve the survival storer of shock resistance, anti-penetration capacity and heat insulation anti-ablation ability.
Technical solution of the present utility model is: a kind of by protective casing, storage data storage area inner casing, heat insulation packed layer material and detachability connect the air crash survival storer that gland bonnet is formed, described protective casing and gland bonnet are the right cylinder ball tops of being made by the martensitic precipitation material, the described insulating layer material of filling between right cylinder ball top and the storage data storage area inner casing is based on the silicate powder, glass fibre is a skeleton, receive close powder and resin be bonding agent form have certain porosity, when the uniform temperature value, produce the material of chemolysis endothermic effect, and each interlayer faying face is unbonded closely cooperating in the shell, and described protective casing superficies are coated with heat insulation expansion coating.
The utility model has following beneficial effect than prior art.
Because the survival capability of crashing is mainly realized by the protection housing.The right cylinder ball top protective casing that the utility model adopted is that each has as hand and pinch the technique effect that egg is difficult for pinching brokenly to the structure that has possessed very strong shock resistance and anti-penetration capacity the best on a kind of mechanics.Because it concentrates stress surface little, can disperse the external force from non-normal direction, makes its external force be decomposed to form the component transmission by the ball face or the face of cylinder, impact intensity of force and impact energy thereby weaken to penetrate.Can satisfy static pressure requirement especially from the deep-sea.Also strengthened antiseptic power simultaneously to the shallow sea seawater.Described storage data storage area inner casing and right cylinder ball top similar shape coupling have constituted and have arrived core component inside respectively to equidistant geometric shape, make it form an omnibearing isothermal transmission region, make the housing heat evenly be delivered to core component.According to principle of energy balance, the heat of external flame all the time can be to the product internal delivery, and the transmission speed of heat is calculated by minimal path, and the material of the long more use of the route of distance is many more, and it is also big more to increase volume and weight.This respectively to equidistant geometric shape design, optimized the balance transmission of hot transmission.Thereby reduced the heating power destruction of hot transmission disequilibrium.The core component of being made up of the Flash solid-state memory that leaves in the data storage area is designed to stop profile with right cylinder with shell.Not only can alleviate the weight of core component self, but also improve its shock resistance to a certain extent.Because when being hit, impact energy is the product of acceleration and core body weight, and alleviating of core body weight can alleviate concentrated stress.
The martensitic precipitation housing that the utility model adopts, possessed than general stainless steel or higher intensity, corrosion resistance and the inoxidizability of titanium alloy case material, the wherein trace of the Cu of Tian Jiaing, Nb element control can make the tensile strength of material and ductility reach best overall equilbrium.
The inner thermofin energy storage heat-barrier material that is different from prior art that adopts of protective casing, coefficient of heat conductivity is little, can produce chemical decomposition process when being heated, and heat absorbs in the chemolysis mode.Endothermic process, adiabatic method are to realize that with coefficient of heat conductivity and chemolysis dual mode the heat that can transmit is few, has guaranteed to be delivered to the less heat of core body inside.The thermal insulation of getting off and realizing with material thermal conductivity than prior art adopts substantially under same coefficient of heat conductivity, reaches same insulation effect, and it is little for the volume ratio that needs.When standing the external flame barbecue, heat is guaranteed core body temperature stabilization partly to absorb and to isolate dual mode.This layer has the damping capacity under thump simultaneously.
The outer heat insulation expansion coating that applies of protective casing and the salmon pink decorative paint W04-1 of coating thereof.Both satisfy mould proof, the anti-salt fog of TSO-124A regulation, anti-damp and hot warning color, possessed certain heat insulation and anti-ablation ability again.Because heat insulation expansion coating has 1: 10~15 die swell ratio thickness when flame is roasted, slow down the influence of flame to metal shell, and prolonged the heat insulation time.
This shows that to the utlity model has volume little, in light weight, memory space is big, and survival capability height, heat-barrier material have and decompose initiatively heat absorption, and outer layer coating possesses the characteristics of heat insulation time-delay.
In order to further specify rather than limit above-mentioned implementation of the present utility model, provide most preferred embodiment below in conjunction with drawings and Examples, thereby make details of the present utility model and advantage become more obvious.
Description of drawings
Fig. 1 is a side-looking cross section view of the present utility model.
Fig. 2 is the cross section view of overlooking of Fig. 1.
Embodiment
Fig. 1, Fig. 2 have described right cylinder ball top protective casing of being made by martensitic precipitation foundry goods or machining 3 and the detachability connection gland bonnet 9 that is made of screw cap.Described martensitic precipitation can be OOCr17Ni4 Cu4 Nb.The cylindrical cavity that forms in the centre have one with the storage data storage area aluminium alloy inner casing 6 of right cylinder ball top protective casing 3 profiles with shape, be to place the core component electronic component plate core area of forming by the Flash solid-state memory, be filled with the heat insulation packed layer 4 of separability that can carry out the core body mounting or dismounting easily around it.This packed layer material can be based on the silicate powder, and glass fibre is a skeleton, receive close powder and resin be bonding agent form have certain porosity, when the uniform temperature value, produce the material of chemolysis endothermic effect.By the flexible cable 8 that core component is drawn the signal of core body is drawn, this cable 8 is made up of polyimide and the lead that can melt fast when flame is roasted, and its quick fusing when flame is roasted can stop heat to import core body into from lead.Be filled with the high-strength high temperature-resistant sealing bonding agent 7 that possesses anti-deep sea pressure at the junction surface of cable 8 outlets and metal shell and metallic sealed cover 9.The surface of the heat insulation expansion coating layer 2 that applies at the superficies of protective casing 3 also is coated with one deck salmon pink fire resistant coating decorative paint W04-1 layer 1.
In order to prevent that the analyte of thermofin in endothermic process from damaging core body, possesses bonding and self impermeability and the tough sexual isolation parcel coating 5 good with heat-barrier material at the surperficial coating isolation parcel that needs of thermofin.Isolating parcel coating and be a kind of is principal ingredient with cellulosics, and plastifier, viscosifying agent etc. is the coating of auxiliary material.Insulation material layer 4 is for reaching effect of heat insulation, self will decompose the part small-molecule substance, in order to stop these small-molecule substances to arrive on the core body chip, all surface at heat-barrier material has increased such one deck isolation bag shoe coating 5, the analyte of heat-barrier material will be isolated 5 isolation of parcel dope layer like this, make it and can not arrive in the core body.
The Flash chip-stored medium that the utility model is used, on PCB layout, can take stacked structure, can pile up four printed boards, just can satisfy the capacity of 52M usually with a printed board, during the expansion capacity, can increase printed board quantity and change the Flash chip.

Claims (6)

1. one kind by protective casing, storage data storage area inner casing, the air crash survival storer that the gland bonnet that heat insulation packed layer material and detachability connect is formed, it is characterized in that described protective casing and gland bonnet are the right cylinder ball tops of being made by the martensitic precipitation material, the described insulating layer material of filling between right cylinder ball top and the storage data storage area inner casing is based on the silicate powder, glass fibre is a skeleton, receive close powder and resin be bonding agent form have certain porosity, when the uniform temperature value, produce the material of chemolysis endothermic effect, and each interlayer faying face is unbonded closely cooperating in the shell, and described protective casing superficies are coated with heat insulation expansion coating.
2. survival storer according to claim 1 is characterized in that described martensitic precipitation is OOCr17Ni4Cu4Nb.
3. survival storer according to claim 1 is characterized in that the flexible cable of being drawn by core component is made up of polyimide and fusible voltinism lead.
4. survival storer according to claim 1 is characterized in that being filled with the high-strength high temperature-resistant that possesses anti-deep sea pressure at the junction surface of cable outlet and metal shell and metallic sealed cover seals bonding agent.
5. survival storer according to claim 1 is characterized in that described thermofin surface-coated has the coating with heat-barrier material good bonding and self impermeability and toughness.
6. survival storer according to claim 1 is characterized in that described isolation parcel coating is to be principal ingredient with cellulosics, and plastifier, viscosifying agent are the coating of auxiliary material.
CN 200420033911 2004-06-08 2004-06-08 Survival memory for aircraft crash Expired - Lifetime CN2733467Y (en)

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CN 200420033911 CN2733467Y (en) 2004-06-08 2004-06-08 Survival memory for aircraft crash

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Application Number Priority Date Filing Date Title
CN 200420033911 CN2733467Y (en) 2004-06-08 2004-06-08 Survival memory for aircraft crash

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103582356A (en) * 2012-07-18 2014-02-12 霍尼韦尔国际公司 Systems and methods for protecting a flight recorder
CN104507286A (en) * 2014-12-17 2015-04-08 安徽森力汽车电子有限公司 High-temperature protection box structure
CN109625340A (en) * 2018-12-19 2019-04-16 长沙新材料产业研究院有限公司 A kind of damping packaging method of carrying object load device and carrying object
CN110809378A (en) * 2019-10-23 2020-02-18 航天材料及工艺研究所 Damping/heat insulation structure and preparation method and application thereof
CN113466894A (en) * 2021-06-09 2021-10-01 航天恒星科技有限公司 Protection system of emergency positioning transmitter

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103582356A (en) * 2012-07-18 2014-02-12 霍尼韦尔国际公司 Systems and methods for protecting a flight recorder
CN103582356B (en) * 2012-07-18 2018-06-05 霍尼韦尔国际公司 For protecting the system and method for flight recorder
CN104507286A (en) * 2014-12-17 2015-04-08 安徽森力汽车电子有限公司 High-temperature protection box structure
CN104507286B (en) * 2014-12-17 2018-06-15 安徽森力汽车电子有限公司 A kind of high temperature protection box structure
CN109625340A (en) * 2018-12-19 2019-04-16 长沙新材料产业研究院有限公司 A kind of damping packaging method of carrying object load device and carrying object
CN109625340B (en) * 2018-12-19 2022-07-29 长沙新材料产业研究院有限公司 Loaded object loading device and loaded object damping packaging method
CN110809378A (en) * 2019-10-23 2020-02-18 航天材料及工艺研究所 Damping/heat insulation structure and preparation method and application thereof
CN113466894A (en) * 2021-06-09 2021-10-01 航天恒星科技有限公司 Protection system of emergency positioning transmitter

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
C56 Change in the name or address of the patentee
CP03 Change of name, title or address

Address after: Huang Tian dam, Chengdu City, Sichuan Province, China: 610091

Patentee after: AVIC Kaitian electronic Limited by Share Ltd.

Address before: Huang Tian dam, Chengdu City, Sichuan Province, China: 610091

Patentee before: Chengdu Aviation Instrument Co.,Ltd.

Address after: Huang Tian dam, Chengdu City, Sichuan Province, China: 610091

Patentee after: Chengdu Aviation Instrument Co.,Ltd.

Address before: Huang Tian dam, Chengdu City, Sichuan Province, China: 610091

Patentee before: Chengdu Aviation Instrument Co.

C56 Change in the name or address of the patentee

Owner name: CHINA AVIATION INDUSTRY CORPORATION I-AVIC I KAITI

Free format text: FORMER NAME: CHENGDU SPACE METERS CO.,LTD.

C56 Change in the name or address of the patentee
CP03 Change of name, title or address

Address after: Chengdu, Qingyang, Sichuan Province Huang Tian dam, Chengdu Kai Tian electronic Limited by Share Ltd, postcode: 610091

Patentee after: AVIC Kaitian electronic Limited by Share Ltd.

Address before: Huang Tian dam, Chengdu City, Sichuan Province, China: 610091

Patentee before: AVIC Kaitian electronic Limited by Share Ltd.

C56 Change in the name or address of the patentee

Owner name: CHENGDU KAI TIAN ELECTRONICS CO., LTD.

Free format text: FORMER NAME: CHINA AVIATION INDUSTRY CORPORATION I-AVIC I KAITIAN ELECTRONICS CO LTD

CP01 Change in the name or title of a patent holder

Address after: Chengdu, Qingyang, Sichuan Province Huang Tian dam, Chengdu Kai Tian electronic Limited by Share Ltd, postcode: 610091

Patentee after: CHENGDU CAIC ELECTRONICS Co.,Ltd.

Address before: Chengdu, Qingyang, Sichuan Province Huang Tian dam, Chengdu Kai Tian electronic Limited by Share Ltd, postcode: 610091

Patentee before: AVIC Kaitian electronic Limited by Share Ltd.

C17 Cessation of patent right
CX01 Expiry of patent term

Expiration termination date: 20140608

Granted publication date: 20051012