CN103035045A - Ship data protection unit - Google Patents
Ship data protection unit Download PDFInfo
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- CN103035045A CN103035045A CN2012105668443A CN201210566844A CN103035045A CN 103035045 A CN103035045 A CN 103035045A CN 2012105668443 A CN2012105668443 A CN 2012105668443A CN 201210566844 A CN201210566844 A CN 201210566844A CN 103035045 A CN103035045 A CN 103035045A
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Abstract
The invention discloses a ship data protection unit which comprises an outer shell, a heat insulation barrel and an inner core, wherein the heat insulation barrel is located between the outer shell and the inner core, a fireproof layer is arranged between the outer shell and the heat insulation barrel, and a paraffin layer is arranged between the heat insulation barrel and the inner core. Through the modularized design, the functions of various layers are independent, the ship data protection unit is dismountable, the assembly and maintenance costs are lower, the various layers independently wrap the inner layers, no physical connection exists between a carrier for storing backup data, namely an electronic hard disc, and the other layers except the adjacent two layers, so that heat can be avoided being transferred to the electronic hard disc through physical connection.
Description
Technical field
The present invention relates to a kind of shipborne navigational equipment, be specifically related to a kind of data backup memory device of Shipborne navigation data recorder.
Background technology
Data protection unit for ship is equipment the most key in the Shipborne navigation data recorder; Shipborne navigation data recorder is the Shipborne navigation data recorder that need to equip according to related request for the boats and ships of world navigation, the previously selected data items such as the order command of the state of record ship and output signal, boats and ships and operation control.
The data items of Shipborne navigation data recorder acquisition and recording is when preserving main frame; also be sent to data protection unit for ship as backup by data cable, the effect of data protection unit for ship is in order to carry out subsequently analysis to the relevant reason of marine accident.
International Maritime Organization (IMO) (IMO) has formulated the standard-required of data protection unit for ship; data protection unit is except the requirement of the anti-electromagnetic interference (EMI) of salt fog watertight aspect need to reach; after also needing to stand following situations, the data cell internal data is still intact and can read:
1. impact: the half-sine pulse of 50g continues 11ms;
2. puncture: 250kg and with the object of 100mm diameter tip falls from the 3m eminence;
3. fire-resistant: 260 ℃ low temperature is burnt 10h, and 1100 ℃ high temperature is burnt 1h;
4. deep sea pressure and diving: be immersed in pressure (the being equivalent to the 6000m degree of depth) 24h that stands 60MPa in the seawater, 3m depth of water sea water immersion 30 days.
At present; the data cell peculiar to vessel of domestic production is mostly merely from intercepting heat conducting angle design data protection unit for ship; inner structure and outlet method are mostly relatively more disorderly after the navigation through for a long time jolting, and have greatly affected the performance and used life of data protection unit for ship.
Summary of the invention
The purpose of this invention is to provide a kind of data protection unit for ship, the properties of General Promotion data cell peculiar to vessel has especially improved the properties of data cell peculiar to vessel behind fire testing in the prior art problem.
The invention provides a kind of data protection unit for ship, comprise shell body, heat insulation bucket and kernel, heat insulation bucket is provided with fireprotection layer between shell body and the heat insulation bucket between shell body and kernel, be provided with paraffin layer between heat insulation bucket and the kernel.
The present invention is by modular design, the functional independence of each layer, detachable, assembling and maintenance cost are lower, and the independent wrapping inner layer of each layer, between adjacent two layers, other layers do not have physical connection with carrier-electric board of preserving Backup Data, can avoid heat to be delivered to electric board by physical connection.
In some embodiments, shell body comprises upper shell, base and chassis, and the chassis is the upper shell bottom inside fixedly, and the side that upper shell is provided with the chassis is fixed on the base by releasing means, and the chassis is provided with bar hole.Shell body directly contacts with shell body interior fire protection layer, does not have annexation with heat insulation bucket or kernel, avoids heat to be delivered to the heat insulation bucket of protective layer inside by web member.
In some embodiments, heat insulation bucket comprises heat insulation bucket shell, liquid level, vacuum barrel and heat insulation bucket loam cake, and heat insulation bucket cover rim is jagged, and vacuum barrel is in the inside of heat insulation bucket shell, and liquid level is between vacuum barrel and heat insulation bucket shell.The liquid level of heat insulation bucket will utilize heat up heat absorption and vaporizing liquid of liquid to emit heat and further intercept heat energy to be transmitted into heat insulation bucket from protective layer inner, also have vacuum layer in the liquid level of heat insulation bucket, and a small amount of heat that intercepts through liquid level enters heat insulation bucket inside.
In some embodiments, kernel comprises kernel housing and the kernel bottom and the kernel top cover that are fastened on kernel housing two ends, and the kernel top cover is provided with the bar shaped via hole, and kernel top cover inboard is provided with the electric board fixed mount.Satisfying on the basis of pressure-bearing, the electric board fixed mount only has the physical connection relation with the kernel top cover, does not have direct physical connection with miscellaneous part, and further trap heat is to the transmission of electric board fixed mount.
In some embodiments, the present invention also comprises electric board, the data card extender, embedded system is processed device, direct-insert terminal and data line socket, electric board is fixedly on the electric board fixed mount, the data card extender is inserted in the bar shaped via hole, direct-insert terminal and embedded system are processed device and are fixed on the chassis by a side of base, the data line socket is fixed on chassis outer side, the data card extender connects with electric board by data flat cable, the data card extender connects embedded system by data flat cable and processes device, and embedded system is processed device and connected the data line socket by direct-insert terminal.Process device by embedded system and set up the main frame of Shipborne navigation data recorder and connect with the data of electric board in the kernel, with main frame take data write in the electric board.
In some embodiments, the present invention also comprises the power line socket that is fixed on the chassis, and power line socket connects embedded system by direct-insert terminal and processes device.The present invention provides power supply by power lead, and adopts direct-insert terminal, cooperates external releasing means, the present invention is installed and the operating process that discharges simple and convenient.
Description of drawings
Fig. 1 is the structural representation of the data protection unit for ship of one embodiment of the present invention;
Fig. 2 is the kernel top cover assembling synoptic diagram of data protection unit for ship shown in Figure 1;
Fig. 3 is the heat insulation barrel structure synoptic diagram of data protection unit for ship shown in Figure 1;
Fig. 4 is the chassis assembling synoptic diagram of data protection unit for ship shown in Figure 1;
Fig. 5 is the base assembling synoptic diagram of data protection unit for ship shown in Figure 1.
Embodiment
Below in conjunction with accompanying drawing the present invention is described in further details.
As shown in Figure 1, the invention describes a kind of data protection unit for ship, comprise shell body, heat insulation bucket and kernel.Heat insulation bucket is provided with fireprotection layer 2 between shell body and the heat insulation bucket between shell body and kernel, be provided with paraffin layer 4 between heat insulation bucket and the kernel.
Shell body comprises upper shell 11, base 12 and chassis 13, and chassis 13 is bolted to upper shell 11 bottom inside, and the side that upper shell 11 is provided with chassis 13 is fixed on the base 12 by releasing means, and chassis 13 is provided with bar hole 14.
Heat insulation bucket comprises heat insulation bucket shell 31, liquid level 32, vacuum barrel 33 and heat insulation bucket loam cake 34, and heat insulation bucket loam cake 34 edges are jagged 35, and vacuum barrel 33 is in the inside of heat insulation bucket shell 31, and liquid level 32 is between vacuum barrel 33 and heat insulation bucket shell 31.
Kernel comprises kernel housing 51 and the kernel bottom 52 and kernel top cover 53 that are fastened on kernel housing 51 two ends, and kernel top cover 53 is provided with bar shaped via hole 57, and kernel top cover 53 inboards are provided with electric board fixed mount 56.
The present invention also comprises electric board 56, data card extender 71, embedded system is processed device 75, direct-insert terminal 74 and data line socket 76, electric board 56 is fixed on the electric board fixed mount 56, data card extender 71 is inserted in the bar shaped via hole 57, direct-insert terminal 74 and embedded system are processed device 75 and are fixed on chassis 13 by a side of base 12, data line socket 76 is fixed on base 12 outsides, data card extender 71 connects with electric board 70 by data flat cable 72, data card extender 71 connects embedded system by data flat cable 73 and processes device 75, and embedded system is processed device 75 and connected described data line socket 76 by described direct-insert terminal 74.The present invention also comprises the power line socket 77 that is fixed on the chassis 12, and power line socket 77 connects embedded system by direct-insert terminal 74 and processes device 75.
As shown in Figure 2, data card extender 71 is inserted in the bar shaped via hole 57 on the kernel top cover 53, aligns calibration, and namely kernel top cover 53 medial surfaces are surveyed as far as possible vertical with data card extender 71 plate appearances.Uniform filling plastic hot melten gel between the bar shaped via hole 57 of kernel top cover 53 medial surfaces and data card extender 71, seal wherein space, and when guaranteeing that glue is filled on kernel top cover 53 tops without leakage, after the plastic hot melt gelling is solid, evenly insert the autogamy fluid sealant to flushing with kernel top cover 53 lateral surfaces between the bar shaped via hole 57 of kernel top cover 53 lateral surfaces and the data card extender 71 again, note during point glue not interspacing and pad that must not cover data card extender 71 both sides.
Data card extender 71 is connected with electric board 70 by data flat cable 72 at an end of kernel top cover 53 inboards, and data flat cable 72 welding data card extenders 71 dip in alcohol with absorbent cotton before welding and clean solder joint, and postwelding is with the tow sides of 704 sulphurated siliastic welded encapsulation pieces.
Can after one side 704 sulphurated siliastics are air-dry, put again another side during operation, after two sides 704 sulphurated siliastics are air-dry, all remove with the plastic hot melten gel of diagonal pincers with kernel top cover 53 inboards, 704 sulphurated siliastics have outstanding heat-resisting quantity, low temperature properties, hot water resistance and resistance to ag(e)ing, excellent electrical apparatus insulation, moistureproof shock resistance and excellent cementability.
The other end welding data winding displacement 73 of data card extender 71, wipes of alcohol wash clean before the same weldering, postwelding 704 sulphurated siliastics envelope tow sides.Data flat cable 72, data flat cable 73 all use high temperature 44 core cables, and join 44 core cable plugs.Electric board fixed mount 56 is fixed by screws on the kernel top cover 53, and electric board 70 is fixed by screws on the electric board fixed mount 56, data flat cable 72 grafting electric boards 70.Use black insulating tape package data winding displacement 73 plugs in the assembling process, with the plug of protected data winding displacement 73.High temperature 44 core cables are to be selected from take stranded zinc-plated wire as conductor and Teflon as insulator, has good resislance to corrosion from sea water, and have good electrical insulation capability, high-frequency loss is little, nonhygroscopic, has outstanding flame resistance and ageing-resistant performance, long service life.
Kernel housing 51 two ends have internal thread, kernel bottom 52, kernel top cover 53 correspondence positions have external thread, kernel housing 51 two ends respectively with kernel bottom 52, kernel top cover 53 is threaded, kernel bottom 52, also has L shaped inside groove on the kernel top cover 53, the O-ring seal sealing is arranged in the L shaped inside groove, can make the good sealing of rear maintenance that is threaded, MP-3 railway grease is filled in the slit between L shaped internal groove side wall and O-ring seal, MP-3 railway grease is a kind of multiple-effect long-life lubricating grease, has good water resisting property, mechanical safety, rust-preventing characteristic and oxidation stability, but the serviceable life of extension fixture.
As shown in Figure 3, heat insulation bucket comprises heat insulation bucket shell 31, liquid level inner casing and heat insulation bucket loam cake 34.Heat insulation bucket shell 31 be cylindric Stainless Steel Shell, and an end is provided with first opening corresponding with heat insulation barrel of loam cake 34 sizes, shape.Heat insulation bucket shell 31 adopts 304 stainless steels, and 304 stainless steels have suitable data cell at sea rust-preventing characteristic and the corrosion resistivity of need for environment, and have certain heat-resisting quantity concurrently, help the serviceable life of data cell peculiar to vessel.The liquid level inner casing is arranged in the heat insulation bucket shell 31, and has and mutual the second opening of corresponding setting of heat insulation bucket loam cake 34 sizes, shape.The first opening is connected with the second opening is seamless.Like this, heat insulation bucket shell 31 and liquid level inner casing have formed the cavity of a sealing, and this cavity is complete closed not.Heat insulation bucket shell 31 outer walls are provided with two perforates, will can form liquid level 32 in this cavity of liquid filling by this perforate, and after liquid filling was complete, tapping was established stopple and blocked perforate.
Heat insulation bucket loam cake 34 also comprises the liquid level 32 in loam cake housing and the loam cake housing, and heat insulation bucket loam cake 34 outer walls also are provided with perforate, and have stopple, and the liquid in the liquid level 32 also is to fill by perforate 32, and blocks with stopple 34.
The liquid of liquid level 32 mainly is the mixing material that blue ice, water and correctives form.The indigo plant ice that the present invention mainly adopts is selected from the blue ice of gel of the ICE-PAK of Cryopak ° of Industries Inc., it is a kind of new high-efficiency agent for storage of coldness, functional high molecule material, nontoxic, can not burn and explode, non-corrosiveness, reusable, non-sunlight surpasses 10 years lower serviceable life, even the container breakage of Sheng environmental protective ice is also without any pollution.The present invention also is aided with water, sodium chloride, potassium chloride etc. and regulates mixing material to suitable boiling point.The present invention take sodium chloride and potassium chloride as correctives for example, it is pointed out that the present invention is not limited with sodium chloride and potassium chloride.In the present embodiment, the preferred blue ice of gel that adopts 72% ICE-PAK, 18% saturated nacl aqueous solution and 10% Klorvess Liquid are as the mixing material in the liquid level 32,31, above-mentioned number percent all is weight percentage, and can regulate mixed solution to suitable boiling point (about 70 ℃).
The liquid layer thickness of liquid level 32 can 2 to 6 centimetres of settings, and perforate can be 6 to 12 millimeters circular port setting.Present embodiment is take the thickness of liquid level 32 as 3 centimetres.Perforate is selected from the circular port of 9 millimeters of diameters, and is furnished with the corresponding stopple that arranges.In the time of can making liquid level 32 interior liquid reach unstable state, produce suitable pressure, the corresponding stopple that arranges is taken off in punching.In addition, mixing material poured into heat insulation bucket shell 31 and heat insulation bucket loam cake 34 after, the perforate rubber seal can be reached this effect, this also is the simplest a kind of embodiment of stopple.
In destructive test, liquid level 32,31 interior mixed liquors are in unstable state reaching after the excessive heat absorption in 70 ℃ of situations, continue the rear volumetric expansion of heat absorption, the stopple 34 of stopple 14 and heat insulation bucket loam cake on the heat insulation bucket shell 31 is taken off in punching, it is outside to reject heat to heat insulation bucket, this structure can guarantee heat insulation bucket under 260 ℃ continuous high temperature 10 hours, and liquid level inner casing temperature can be above 80 ℃.
The heat insulation bucket of data protection unit for ship provided by the present invention can also comprise vacuum barrel 33, and vacuum barrel 33 comprises vacuum layer shell and the vacuum layer inner casing of hollow barrel.The vacuum layer inner casing is located at the vacuum layer enclosure, the bead seamless link of the bead of vacuum layer inner casing and vacuum layer shell.Like this, form the cavity of a sealing between vacuum layer inner casing and the vacuum layer shell, be set to vacuum in this cavity.Vacuum barrel 33 is arranged at liquid level 32 inboards.The arranging of vacuum barrel 33 can intercept a small amount of heat of coming in through the transmission of heat insulation bucket liquid level.Vacuum barrel 33 adopts 316 stainless steels to make, and in destructive test, the heat insulation bucket that will be furnished with liquid level 32 and vacuum barrel 2 places 260 ℃ lower 10 hours of continuous high temperature, and vacuum layer inner casing temperature can be above 10 ℃.
Vacuum layer shell and liquid level inner casing can be two independently parts, also can be parts, when vacuum layer shell and liquid level inner casing are same parts, vacuum barrel 33 can be to form with heat insulation bucket shell 31 integrally castings, also can be with seamless the first opening inwall place that is connected to heat insulation bucket shell 31 of the bead of vacuum barrel.
Heat insulation bucket loam cake 34 edges are provided with breach 35, when convenient for assembly, go out data flat cable 73 from what data card extender 71 was drawn.After packing into kernel in the vacuum barrel 33 of heat insulation bucket, after melting, paraffin is cast in the space between kernel and the vacuum barrel 2, formation paraffin layer 4.The paraffin liquid level gets final product from about heat insulation bucket about 3cm place, upper edge.After the paraffin cooled and solidified, cover heat insulation bucket loam cake 34, and the data flat cable 73 that will connect kernel is drawn from the breach 35 of heat insulation bucket loam cake 34, then breach 35 place's filling epoxy resin glue flush to the outer wall with heat insulation bucket loam cake 34 and get final product, at last heat insulation bucket loam cake 34 and heat insulation bucket shell 31 in conjunction with the slit in evenly smear the AB glue that 1:1 mixes up, and exceed 3 to 5 millimeters, to guarantee the loam cake good seal of heat insulation bucket.
Upper shell 11 is the hollow barrel structure, is provided with the opening with chassis 13 corresponding settings.Heat insulation bucket shell 31 is located at the inside cavity that upper shell 11 and chassis 13 surround, and closely loading has fire blanket as fireprotection layer 2 between heat insulation bucket shell 31 and cavity.Fire blanket is selected from the alumina silicate fibre long filament through the ceramic fiber blanket of two-side needled technological forming.This fiber possesses good interlacing degree, delamination resistance energy, tensile strength etc., and stable chemical performance, heatproof can reach 950 to 11400 ℃.Guarantee that ceramic fiber all has the good property made and stability under high temperature, worst cold case, prolonged the serviceable life of data protection unit for ship fireprotection layer, and crewman's health is had no adverse effects.
Also can evenly carry drying agent secretly in the fire blanket, drying agent is evenly distributed on fire blanket everywhere, prevent fire blanket because the moisture absorption that weather or other reasons cause, and cause the contraction of fiber or the change of other forms and then the serviceable life of prolongation fireprotection layer because of making moist.
As shown in Figure 4, chassis 13 lateral surfaces are fixed with embedded system and process device 75 and direct-insert terminal 74.The wire bonds embedded system that connects as data in the direct-insert terminal 74 is processed device 75, and solder joint is fixing after by the heat-shrink tube pyrocondensation.The solder joint pyrocondensation is fixed, and it is more firm that data are connected.Be not subjected to the impact of fireprotection layer fiber.
Suitable place is provided with locating device on chassis 13 or the embedded system processing device 75, and locating device can be the ply-yarn drill that is fixed on chassis 13 or the embedded system processing device 75, also can be sucker.Direct-insert terminal 74 entangles with R shape ply-yarn drill as four wire near middles that data connect, and R shape ply-yarn drill is fixed on embedded system and processes device 75 correct position places.Be fixed on the sucker with the band binding as power lead in the direct-insert terminal 74, sucker is fixed on the chassis 13.Above-mentioned location measure, even fireprotection layer is prolonged slightly loosening, data connect and power supply connects still not impact.
As shown in Figure 5; base 12 lateral surfaces are equipped with data line aviation socket 76 and power lead aviation socket 77; data line aviation socket 76 is connected with the power lead aviation socket respectively and is connected a direct-insert terminal 74 by four single data wires and a power lead of being connected; one end of four single data wires and two power leads is peeled zinc-plated pruning behind 5 to the 8cm sheaths off; zinc-plated end is checked the number and is welded on data line aviation socket 76 and the power lead aviation socket 77; solder joint respectively overlaps heat-shrink tube 20mm and pyrocondensation; each wire other end crimping tubular terminal; tubular terminal order according to the rules is fixed in the direct-insert terminal 74; wire is that binding strap and being fixed on is pasted on the sucker; sucker is fixed on base 12 inboards; power lead all adopts the soft protective case wire of copper core polyvinyl chloride insulation (BVR); the use of the soft protective case wire of copper core polyvinyl chloride insulation (BVR) guarantees that the prolonged situation lower wire that jolts has good toughness in ship's navigation, has increased the serviceable life of data protection unit for ship.
In addition, data conductor that the present invention adopts is stranded tinned wird and the high temperature wire take fluorinated ethylene propylene copolymer as insulation course, and good decay resistance is arranged, and anti-oil, strong acid, anti-highly basic, strong oxidizer etc. have prolonged the serviceable life of installing.Power lead all adopts the soft protective case wire of copper core polyvinyl chloride insulation (BVR); the use of the soft protective case wire of copper core polyvinyl chloride insulation guarantees that the prolonged situation lower wire that jolts has good toughness in ship's navigation, has increased the serviceable life of data protection unit for ship.In addition, except other has description, all fixed connection places of the present invention all can adopt the screw that is coated with removable rubber seal to connect, but the serviceable life of extension fixture.
Base 12 has mounting groove, and mounting groove is provided with seal groove, establishes O-ring seal in the seal groove, and O-ring seal is coated with barium based grease, makes O-ring seal good mechanical stability, water resisting property, protective and stickability.After in upper shell 11 grooves and base 12 flange inboards are coated with No. 20 aerooils base 12 is fixed on the upper shell 11.No. 20 aerooil has excellent sticking warm nature, antirust anti-corrosion property, oxidation stability and thermal stability, prolongs the serviceable life of data cell peculiar to vessel.
Each layer of the present invention be the package data carrier respectively, and between adjacent two layers, other layers do not have physical connection with data carrier, can avoid heat by the physical connection transmission.
Claims (6)
1. data protection unit for ship; it is characterized in that, comprise shell body, heat insulation bucket and kernel, described heat insulation bucket is between described shell body and kernel; be provided with fireprotection layer (2) between described shell body and the described heat insulation bucket, be provided with paraffin layer (4) between described heat insulation bucket and the described kernel.
2. data protection unit for ship according to claim 1; it is characterized in that; described shell body comprises upper shell (11), base (12) and chassis (13); described chassis (13) is fixed on described upper shell (11) bottom inside; the side that described upper shell (11) is provided with chassis (13) is fixed on the described base (12) by releasing means, and described chassis (13) are provided with bar hole (14).
3. data protection unit for ship according to claim 1; it is characterized in that; described heat insulation bucket comprises heat insulation bucket shell (31), liquid level (32), vacuum barrel (33) and heat insulation bucket loam cake (34); described heat insulation bucket loam cake (34) edge jagged (35); described vacuum barrel (33) is in the inside of described heat insulation bucket shell (31), and described liquid level (32) is positioned between described vacuum barrel (33) and the described heat insulation bucket shell (31).
4. data protection unit for ship according to claim 1; it is characterized in that; described kernel comprises kernel housing (51) and is fastened on the kernel bottom (52) and kernel top cover (53) at described kernel housing (51) two ends; described kernel top cover (53) is provided with bar shaped via hole (57), and described kernel top cover (53) inboard is provided with electric board fixed mount (56).
5. data protection unit for ship according to claim 1; it is characterized in that; also comprise electric board (56); data card extender (71); embedded system is processed device (75); direct-insert terminal (74) and data line socket (76); described electric board (56) is fixed on the described electric board fixed mount (56); described data card extender (71) is inserted in the described bar shaped via hole (57); described direct-insert terminal (74) and embedded system are processed device (75) and are fixed on described chassis (13) by a side of described base (12); described data line socket (76) is fixed on described base (12) outside; described data card extender (71) connects with electric board (70) by data flat cable (72); described data card extender (71) connects described embedded system by data flat cable (73) and processes device (75), and described embedded system is processed device (75) and connected described data line socket (76) by described direct-insert terminal (74).
6. data protection unit for ship according to claim 1; it is characterized in that; also comprise the power line socket (77) that is fixed on the described chassis (12), described power line socket (77) connects described embedded system by described direct-insert terminal (74) and processes device (75).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210566844.3A CN103035045B (en) | 2012-12-24 | 2012-12-24 | data protection unit for ship |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210566844.3A CN103035045B (en) | 2012-12-24 | 2012-12-24 | data protection unit for ship |
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| Publication Number | Publication Date |
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| CN103035045A true CN103035045A (en) | 2013-04-10 |
| CN103035045B CN103035045B (en) | 2015-11-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210566844.3A Expired - Fee Related CN103035045B (en) | 2012-12-24 | 2012-12-24 | data protection unit for ship |
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| CN105184894A (en) * | 2015-07-31 | 2015-12-23 | 陕西千山航空电子有限责任公司 | High-energy and strong-impact resistant crash protection element protection method |
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| CN112071339A (en) * | 2019-06-11 | 2020-12-11 | 上海三利数字技术有限公司 | Data disaster recovery storage device and carrier |
| CN114373486A (en) * | 2021-12-17 | 2022-04-19 | 天津爱玛车业科技有限公司 | Thermal protection device |
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| CN110379040A (en) * | 2019-07-12 | 2019-10-25 | 北京三快在线科技有限公司 | A kind of automobile black box system and its data capture method |
| CN110379040B (en) * | 2019-07-12 | 2021-10-08 | 北京三快在线科技有限公司 | Automobile black box system and data acquisition method thereof |
| CN114373486A (en) * | 2021-12-17 | 2022-04-19 | 天津爱玛车业科技有限公司 | Thermal protection device |
| CN114373486B (en) * | 2021-12-17 | 2023-10-20 | 天津爱玛车业科技有限公司 | Heat protection device |
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| CN103035045B (en) | 2015-11-18 |
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