Protective recorder shell

Abstract

The utility model provides a protective recorder shell. The outer surface of the shell is at least coated with a first coating, a second coating and a third coating, the first coating is a substrate layer, and the thickness of the first coating is 0.2-0.3 mm; the second coating is a heat insulation layer and is thicker than the first coating; the third coating is a heat reflecting layer and is thinner than the first coating; the first coating, the second coating and the third coating are sequentially coated on the outer surface of the protective recorder shell from top to bottom, so that thermal insulation protection of the protective recorder can be realized, inward transfer of heat is effectively reduced, and the destroy resistance of the protective recorder is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of aviation materials, and in particular relates to a protective recorder shell. Background Art

[0002] The protection recorder is the core component responsible for storing the collected data information. With the rapid development of aviation weapons and equipment and technology, the composition structure of various aircraft has become increasingly complex, and the mission requirements have become increasingly rich, which has put forward higher requirements for the collection and storage of flight parameters. The number of parameters in the aircraft system is increasing, from various motors, instruments, pumps and other components to electromechanical, flight control, flight control, electrical, fuel and other systems. Therefore, higher requirements are placed on the survival ability of the data stored in the protection recorder in the event of a crash.

[0003] In order to meet the increasing requirements for the anti-destruction capability of protective recorders, internal insulation and other methods were generally used to solve this problem. However, due to size and space limitations, the performance has reached saturation. Utility Model Content

[0004] The utility model provides a protective recorder shell, which improves the anti-destruction survival capability of the protective recorder, thereby improving the data protection capability.

[0005] The utility model provides a protective recorder housing, wherein the outer surface of the housing is coated with at least: a first coating, a second coating and a third coating;

[0006] The first coating is a base layer with a thickness of 0.2-0.3 mm; the second coating is a heat insulation layer with a thickness greater than the first coating; the third coating is a heat reflection layer with a thickness less than the first coating;

[0007] The first coating layer, the second coating layer and the third coating layer are sequentially coated on the outer surface of the protective recorder housing from the inside to the outside.

[0008] Optionally, the inner surface of the shell is coated with at least: a fourth coating;

[0009] The fourth coating layer is a heat reflection layer, and the thickness is 0.8 times the thickness of the third coating layer.

[0010] Optionally, the outer surface of the protective recorder housing is a non-smooth surface.

[0011] Optionally, the thermal expansion coefficients of the first coating, the second coating and the third coating are 1-1.2.

[0012] Optionally, the thermal conductivity of the second coating is 0.04-0.06w / km.

[0013] Optionally, the protective recorder housing includes: a cover and a base;

[0014] The thickness of each coating at the connection portion between the cover plate and the base is greater than the thickness of the coating at other portions of the shell.

[0015] Optionally, the thickness of each coating at a position of the protective recorder housing corresponding to the storage device of the protective recorder is greater than the thickness of the coating at other positions of the housing.

[0016] The utility model provides a protective recorder shell, wherein the outer surface of the shell is coated with at least: a first coating, a second coating and a third coating; the first coating is a base layer with a thickness of 0.2-0.3 mm; the second coating is a heat insulation layer with a thickness greater than the first coating; the third coating is a heat reflection layer with a thickness less than the first coating; the first coating, the second coating and the third coating are sequentially coated on the outer surface of the protective recorder shell in a top-to-bottom order. The utility model can realize heat insulation protection for the protective recorder, effectively reduce the heat transfer to the inside, and improve the anti-destruction performance of the protective recorder. According to the high-temperature fire environment that the protective recorder may suffer at the crash site, the utility model selects and synthesizes suitable coating materials and applies them to the surface of the protective recorder. When the protective recorder is in a high-temperature fire scene in the event of a crash, the coating material layer on the surface of the protective recorder plays a role, effectively reduces the heat transfer to the inside of the protective recorder in the fire scene by reflection, blocking and the like, and realizes the heat insulation protection function, thereby protecting the safety of the internal storage medium, reducing the probability of damage, and realizing complete data survival. The protective recorder housing provided by the utility model significantly improves the heat insulation protection capability of the protective recorder, which is in line with the functional performance of the protective recorder. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic diagram of the structure of the protective recorder housing provided by the utility model;

[0018] Description of reference numerals:

[0019] 1- first coating;

[0020] 2- Second coating;

[0021] 3- Third coating. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0023] The features and illustrative embodiments of various aspects of the utility model will be described in detail below. In the detailed description below, many specific details are proposed in order to provide a comprehensive understanding of the utility model. However, it is obvious to those skilled in the art that the utility model can be implemented without the need for some of these specific details. The following description of the embodiments is only to provide a better understanding of the utility model by illustrating examples of the utility model. The utility model is by no means limited to any specific settings and methods proposed below, but covers any improvements, replacements and modifications of structures, methods, devices without departing from the spirit of the utility model. In the accompanying drawings and the following description, known structures and technologies are not shown to avoid unnecessary ambiguity in the utility model.

[0024] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other, and the embodiments can be referenced and cited to each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0025] The present invention is further described in detail below in conjunction with embodiments, but the implementation manner of the present invention is not limited thereto.

[0026] The protective recorder surface heat insulation device provided by the utility model is described in further detail below.

[0027] like Figure 1 As shown, the utility model provides a protective recorder housing, the outer surface of which is coated with at least: a first coating 1, a second coating 2 and a third coating 3;

[0028] The first coating 1 is a base layer with a thickness of 0.2-0.3 mm; the second coating 2 is a heat insulation layer with a thickness greater than the first coating 1; the third coating 3 is a heat reflection layer with a thickness less than the first coating 1;

[0029] The first coating 1, the second coating 2 and the third coating 3 are sequentially coated on the outer surface of the protective recorder housing from the inside to the outside.

[0030] Optionally, the inner surface of the shell is coated with at least: a fourth coating;

[0031] The fourth coating layer is a heat reflection layer, and the thickness is 0.8 times the thickness of the third coating layer 3 .

[0032] Optionally, the outer surface of the protective recorder housing is a non-smooth surface.

[0033] Optionally, the thermal expansion coefficients of the first coating 1, the second coating 2 and the third coating 3 are 1-1.2.

[0034] Optionally, the thermal conductivity of the second coating 2 is 0.04-0.06 w / k.

[0035] Optionally, the protective recorder housing includes: a cover and a base;

[0036] The thickness of each coating at the connection portion between the cover plate and the base is greater than the thickness of the coating at other portions of the shell.

[0037] Optionally, the thickness of each coating at a position of the protective recorder housing corresponding to the storage device of the protective recorder is greater than the thickness of the coating at other positions of the housing.

[0038] The coating method of the shell provided by the utility model comprises:

[0039] Step 1: Based on the actual working conditions of the crash of the protective recorder, which exceeds 1000℃ high temperature environment, select and synthesize qualified coating materials mainly composed of SiO2, TiO2 and other materials that can meet the high temperature environment;

[0040] Step 2: Surface coating technology

[0041] 1) Surface pretreatment

[0042] In order to make the coating bond better with the substrate material, the substrate surface must be clean and rough.

[0043] The purpose of purifying the surface is to remove all dirt on the surface of the substrate, such as scale, oil stains, paint and other dirt. The key is to remove the grease on the surface of the substrate and the grease that has penetrated into it.

[0044] The purpose of roughening treatment is to increase the contact area between the coating and the substrate surface, increase the mechanical bite force between the coating and the substrate, and make the purified surface more activated to improve the bonding strength between the coating and the substrate. At the same time, roughening the substrate surface also changes the residual stress distribution in the coating, which is also beneficial to improving the bonding strength of the coating.

[0045] 2) Preheating

[0046] The purpose of preheating is to eliminate moisture and humidity on the surface of the substrate, increase the interface temperature when the spray particles contact the substrate, so as to improve the bonding strength between the coating and the substrate and reduce the cracking of the coating caused by the stress caused by the difference in thermal expansion between the substrate and the coating material.

[0047] 3) Coating

[0048] The coating is carried out by spraying and the coating is carried out according to the relevant process requirements. After coating, it can be used after the coating is dried at room temperature.

[0049] The above is only a further embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the scope disclosed by the present invention according to the technical solution and concept of the present invention, which fall within the protection scope of the present invention.

Claims

1. A protective recorder housing, characterized in that: The outer surface of the shell is coated with at least: a first coating, a second coating and a third coating; The first coating is a base layer with a thickness of 0.2-0.3 mm; the second coating is a heat insulation layer with a thickness greater than the first coating; The third coating is a heat reflective layer, which is thinner than the first coating; The first coating, the second coating and the third coating are sequentially coated on the outer surface of the protective recorder housing in order from inside to outside; The inner surface of the housing is coated with at least: a fourth coating; The fourth coating layer is a heat reflection layer, and the thickness is 0.8 times the thickness of the third coating layer.

2. The housing according to claim 1, characterized in that The outer surface of the protective recorder housing is a non-smooth surface.

3. The housing according to claim 1, characterized in that The thermal expansion coefficients of the first coating layer, the second coating layer and the third coating layer are 1-1.

2.

4. The housing according to claim 1, characterized in that The thermal conductivity of the second coating is 0.05-0.07 w / m·k.

5. The housing according to claim 1, characterized in that The protective recorder housing includes: a cover and a base; The thickness of each coating at the connection portion between the cover plate and the base is greater than the thickness of the coating at other portions of the shell.

6. The housing according to claim 1, characterized in that The coating thickness at the position of the protection recorder housing corresponding to the storage device of the protection recorder is greater than the coating thickness at other positions of the housing.

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