CN114633941A - Anti-drop impact light heat-insulation protective box - Google Patents

Anti-drop impact light heat-insulation protective box Download PDF

Info

Publication number
CN114633941A
CN114633941A CN202210303991.5A CN202210303991A CN114633941A CN 114633941 A CN114633941 A CN 114633941A CN 202210303991 A CN202210303991 A CN 202210303991A CN 114633941 A CN114633941 A CN 114633941A
Authority
CN
China
Prior art keywords
heat
buffer
box body
component
protective
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN202210303991.5A
Other languages
Chinese (zh)
Other versions
CN114633941B (en
Inventor
邹美帅
赵志颖
张旭东
李晓东
吴晓霞
王潇萱
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Beijing Institute of Technology BIT
Original Assignee
Beijing Institute of Technology BIT
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Beijing Institute of Technology BIT filed Critical Beijing Institute of Technology BIT
Priority to CN202210303991.5A priority Critical patent/CN114633941B/en
Publication of CN114633941A publication Critical patent/CN114633941A/en
Application granted granted Critical
Publication of CN114633941B publication Critical patent/CN114633941B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D25/00—Details of other kinds or types of rigid or semi-rigid containers
    • B65D25/20—External fittings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D25/00—Details of other kinds or types of rigid or semi-rigid containers
    • B65D25/14—Linings or internal coatings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D25/00—Details of other kinds or types of rigid or semi-rigid containers
    • B65D25/34—Coverings or external coatings
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/30—Low-molecular-weight compounds
    • C08G18/32—Polyhydroxy compounds; Polyamines; Hydroxyamines
    • C08G18/3203—Polyhydroxy compounds
    • C08G18/3206—Polyhydroxy compounds aliphatic
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/40—High-molecular-weight compounds
    • C08G18/48—Polyethers
    • C08G18/4804—Two or more polyethers of different physical or chemical nature
    • C08G18/4812—Mixtures of polyetherdiols with polyetherpolyols having at least three hydroxy groups
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/40—High-molecular-weight compounds
    • C08G18/48—Polyethers
    • C08G18/4825—Polyethers containing two hydroxy groups
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/40—High-molecular-weight compounds
    • C08G18/48—Polyethers
    • C08G18/4829—Polyethers containing at least three hydroxy groups
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/65—Low-molecular-weight compounds having active hydrogen with high-molecular-weight compounds having active hydrogen
    • C08G18/66—Compounds of groups C08G18/42, C08G18/48, or C08G18/52
    • C08G18/6666—Compounds of group C08G18/48 or C08G18/52
    • C08G18/667—Compounds of group C08G18/48 or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38
    • C08G18/6674—Compounds of group C08G18/48 or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38 with compounds of group C08G18/3203
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G2101/00—Manufacture of cellular products
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G2110/00—Foam properties
    • C08G2110/0083—Foam properties prepared using water as the sole blowing agent
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Packages (AREA)
  • Laminated Bodies (AREA)

Abstract

The invention relates to a light heat-insulation protective box capable of resisting falling impact, and belongs to the technical field of protective boxes. The protective box comprises a buffer heat-insulation outer layer, a light box body and a buffer protective inner layer, wherein the buffer heat-insulation outer layer is wrapped outside the light box body, and the buffer protective inner layer is arranged inside the light box body; wherein, the density of the buffer heat-preservation outer layer and the buffer protection inner layer is 300-400 kg/m3The thermal conductivity coefficient is 0.03-0.04W/(m.K), and the energy absorption per unit volume is 60-120 MJ/m3The polyurethane elastomer is used for the light box body, and the density of the light box body is 1.5-2.7 g/cm3The light box body is a closed hollow box body formed by an upper box body and a lower box body through a hasp component. The protective box disclosed by the invention is simple in structure, easy to manufacture, convenient to disassemble and assemble, and strong in universality, and has the characteristics of light weight, heat preservation, energy absorption and the like.

Description

Anti-falling impact light heat-insulation protective box
Technical Field
The invention relates to a drop impact resistant light heat-insulation protective box, and belongs to the technical field of protective boxes.
Background
Troops, soldiers and doctors need to airdrop materials to specific places when on duty in severe environment areas and rescue in earthquake-resistant and disaster-relief areas. For example, when the medical equipment, medicines, food, ammunition and other materials for first aid are transported to a severe environment area and a disaster-stricken site, if the medical equipment, medicines, food, ammunition and other materials cannot reach the area through road and railway transportation, an unmanned aerial vehicle air-drop mode is needed, and in order to ensure that the materials such as the equipment, the medicines, the food, the ammunition and the like can safely and nondestructively reach the designated site, the packaging box is provided with a buffer device so as to reduce the impact on the contents at the moment of landing. Along with the higher and higher requirements of military supplies on the packing box in the transportation and storage processes, the traditional wooden box, the iron box, the rotational molding box, the PP thermoplastic material and the like have the factors of heavy weight, poor maneuverability, inconvenient loading and unloading, poor weather resistance, no heat preservation, no buffer function in the instant of falling to the ground and the like, and the requirements of the existing military supplies on the packing carrier cannot be met. The protective box prepared from the aluminum honeycomb paperboard and the foamed aluminum buffer material at the present stage overcomes the defects of the protective box made of the traditional material, but the manufacturing cost is high, and batch service cannot be realized.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides the anti-falling impact light heat-insulation protective box which adopts the composite structure design of the outer-layer buffering heat-insulation structure, the light framework structure and the inner-layer buffering protective structure, not only can play a role of landing buffering, but also can bring an effective heat-insulation function to the protective box, and each part structure is easy for large-scale production, convenient to assemble and disassemble and has a good application prospect.
The purpose of the invention is realized by the following technical scheme.
A light heat-insulation protective box capable of resisting falling impact comprises a buffering heat-insulation outer layer, a light box body and a buffering protective inner layer, wherein the buffering heat-insulation outer layer is wrapped outside the light box body, and the buffering protective inner layer is arranged inside the light box body;
the density of the buffer heat-preservation outer layer is 300-400 kg/m3The thermal conductivity coefficient is 0.03-0.04W/(m.K), and the energy absorption per unit volume is 60-120 MJ/m3The polyurethane elastomer of (1); a hemispherical convex structure is processed on the buffer heat-preservation outer layer;
the density of the light box body is 1.5-2.7 g/cm3The tensile strength is more than or equal to 200MPa, and the compressive strength is more than or equal to 200 MPa; the light box body is a closed hollow box body formed by an upper box body and a lower box body through a buckle component;
the density of the inner layer of the buffer protection is 300-400 kg/m3The thermal conductivity coefficient is 0.03-0.04W/(m.K), and the energy absorption per unit volume is 60-120 MJ/m3The polyurethane elastomer of (1); and a limiting groove is arranged on the inner buffer protection layer.
Further, the thickness of the buffer heat-preservation outer layer is sigma, the radius of the hemispherical convex structures on the buffer heat-preservation outer layer is r, the number of the hemispherical convex structures which are uniformly distributed on the buffer heat-preservation outer layer is n, and then
Figure BDA0003564070980000021
6h1≤r≤8h1
Figure BDA0003564070980000022
Figure BDA0003564070980000023
Figure BDA0003564070980000024
Wherein, c1Represents the specific heat capacity of the contents, m1Representing the mass of the contents, c2Represents the specific heat capacity, T, of the polyurethane elastomer2Represents the ambient temperature in the starting protective housing, T'1Represents the initial content temperature, T'2The final temperature in the protective box (or contents), the minus sign represents the direction of heat transfer opposite to the direction of temperature gradient, λ represents the thermal conductivity, t represents the holding time, g represents the acceleration of gravity, W represents the width of the protective box, H represents the falling height of the protective box, A represents the surface area of the protective box, M represents the total mass of the contents in the protective box, V represents the volume of the protective box, ρ represents the density of the polyurethane elastomer, V represents the volume of the protective boxTable (Ref. Table)In order to buffer the total volume of all the hemispherical convex structures on the heat-insulating outer layer, h1And the stacking height of all the hemispherical convex structures on the outer surface buffer heat-preservation outer layer is evenly distributed.
Further, the polyurethane elastomer material selected by the buffer heat-insulation outer layer and the buffer protection inner layer is obtained by reacting, curing and molding the component A and the component B;
the component A is prepared by uniformly mixing polyether polyol, a chain extender, a foaming agent, a catalyst, a cell opening agent and a filler; the polyether polyol is polyoxypropylene triol (EP-330N) with 3 functionality and 5000 molecular weight and polyoxypropylene diol (ED-14) with 2 functionality and 8000 molecular weight, the chain extender is 1, 4-Butanediol (BDO), and the foaming agent is H2O, the catalyst is bis (dimethylaminoethyl) ether (BDMAEE) and dibutyltin dilaurate (T12), the pore-forming agent is open-cell silicone oil (preferably open-cell silicone oil with the mark of ECOADD-019C of Shanghai bright-day industry Co., Ltd.), and the filler is activated carbon fiber; the component A comprises the following raw materials in parts by weight: 15-25 parts of EP-330N, 5-75 parts of ED-1465, 3-10 parts of BDO and H20.40-0.48 part of O, 0.10-0.15 part of BDMAEE, 0.78-0.02 part of T120.01, 0.85-0.95 part of perforated silicone oil and active carbon fiber2-6 parts of vitamin;
the B component is polymethylene polyphenyl isocyanate (PM-200); the mol ratio of-NCO group contained in the component B to active-H contained in the component A is (0.98-1.03): 1.00, wherein the active-H in the component A is active-H and H in polyalcohol-OH2Sum of active-H in O.
Further, the specific operation of the reaction of the component A and the component B is as follows: preheating the component A to 35 +/-2 ℃ and preheating the component B to 45 +/-2 ℃, then pouring the preheated component A and the preheated component B into a mold preheated to 65 +/-5 ℃, and curing and molding at 60-70 ℃ to obtain the polyurethane elastomer.
Furthermore, the material of the light box body is selected from a glass fiber composite material, a carbon fiber composite material, a basalt fiber composite material, an aluminum alloy material or a titanium alloy material.
Has the beneficial effects that:
(1) the invention adopts the composite structure design of the outer layer buffer heat-insulation structure, the light skeleton structure and the inner layer buffer protection structure, can play a role of landing buffer, can bring effective heat-insulation function to the protection box, can resist the attack of wind, sand, intense heat, severe cold and high-altitude falling, has the functions of strong impact resistance, high and low temperature resistance, buffer shock absorption, water resistance, moisture resistance, ultraviolet resistance, dust resistance and corrosion resistance, and can ensure the integrity, usability and reliability of internal loaded materials under various severe environments such as jungles, deserts, aviation, navigation, plateaus and the like.
(2) According to the invention, the buffer heat-insulation outer layer is arranged outside the light box body, the hemispherical convex structure on the surface of the buffer heat-insulation outer layer can firstly contact the ground, and a large amount of impact energy is absorbed through the collapse of the foam holes in the polyurethane elastomer, so that the damage of the impact energy to the contents in the protective box is reduced; meanwhile, the heat conductivity coefficient of the buffer heat-preservation outer layer is extremely low, and the buffer heat-preservation outer layer has a good heat-preservation effect.
(3) The light box is internally provided with the buffer protection inner layer, the inner protection layer can ensure that the contents are not contacted, and certain buffer and heat preservation effects can be achieved.
(4) All structural parts of the protective box can be produced in a modularized mode, the parts are convenient to assemble and disassemble, and meanwhile, the parts can be independently designed according to the actual using working condition environment of the protective box, so that the protective box is suitable for various external working conditions and different internal structures to match with corresponding built-in materials, and the protective box is high in universality and good in application prospect.
Drawings
FIG. 1 is a front view of the drop impact resistant lightweight thermal protective case of example 1; in the figure, 1-hemispherical convex structure, 2-hasp component.
Detailed Description
The present invention is further illustrated by the following detailed description, wherein the processes are conventional unless otherwise specified, and the starting materials are commercially available from a public source without further specification.
Example 1
A light heat-insulation protective box capable of resisting falling impact comprises a buffering heat-insulation outer layer, a light box body and a buffering protective inner layer, wherein the buffering heat-insulation outer layer is wrapped outside the light box body, and the buffering protective inner layer is arranged inside the light box body;
the buffer heat-preservation outer layer and the buffer protection inner layer are both selected to have the density of 300-400 kg/m3The thermal conductivity coefficient is 0.03-0.04W/(m.K), and the energy absorption per unit volume is 60-120 MJ/m3The polyurethane elastomer of (2) is prepared by the following specific steps: preheating the component A to 35 +/-2 ℃ and preheating the component B to 45 +/-2 ℃, then pouring the preheated component A and the preheated component B into a mold preheated to 65 +/-5 ℃, and curing and molding at 60-70 ℃ to obtain a polyurethane elastomer; wherein the component A comprises EP-330N 15-25 parts, ED-1465-75 parts, BDO 3-10 parts and H20.40-0.48 part of O, 0.10-0.15 part of BDMAEE, 0.85-0.95 part of T120.01, 0.85-0.95 part of ECOADD-019C open pore silicone oil of Shanghai bright-field industry Limited and 2-6 parts of activated carbon fiber, wherein the component B is PM-200, and the molar ratio of-NCO groups contained in the component B to active-H contained in the component A is (0.98-1.03): 1.00;
the buffer heat-preservation outer layer is provided with hemispherical convex structures 1 which are uniformly distributed, as shown in figure 1; the outer thickness of buffering heat preservation is sigma, the radius of the protruding structure of hemisphere 1 on the buffering heat preservation outer is r, 1 number of the protruding structure of hemisphere of evenly distributed on the buffering heat preservation outer is n, then:
Figure BDA0003564070980000041
6h1≤r≤8h1
Figure BDA0003564070980000051
Figure BDA0003564070980000052
Figure BDA0003564070980000053
wherein, c1Represents the specific heat capacity of the contents, m1Representing the mass of the contents, c2Represents the specific heat capacity, T, of the polyurethane elastomer2Represents the ambient temperature in the starting protective housing, T'1Represents the starting content temperature, T'2The final temperature in the protective box (or contents), the minus sign represents the direction of heat transfer opposite to the direction of temperature gradient, λ represents the thermal conductivity, t represents the holding time, g represents the acceleration of gravity, W represents the width of the protective box, H represents the falling height of the protective box, A represents the surface area of the protective box, M represents the total mass of the contents in the protective box, V represents the volume of the protective box, ρ represents the density of the polyurethane elastomer, V represents the volume of the protective boxPlatformIn order to buffer the total volume h of all the hemispherical convex structures 1 on the heat-preservation outer layer1The stacking height of all the hemispherical convex structures 1 on the outer surface buffer heat-preservation outer layer is evenly distributed;
the density of the light box body is 1.5-2.7 g/cm3Tensile strength is more than or equal to 200MPa and compressive strength is more than or equal to 200A fiber composite or alloy material (such as a glass fiber composite, a carbon fiber composite, a basalt fiber composite, an aluminum alloy material or a titanium alloy material) of MPa; the light box body is a closed hollow box body formed by an upper box body and a lower box body through a buckle component 2, as shown in figure 1;
the buffer protection inner layer is provided with a limiting groove, the specific structure of the limiting groove is designed according to the specific contents to be installed, and the limiting groove is used for fixing the contents and avoiding the damage of the contents due to the contact among the contents;
the buffer heat-insulation outer layer and the buffer protection inner layer of the protection box are made of polyurethane elastomers with low density, low heat conductivity coefficient, excellent buffer energy absorption performance and excellent mechanical performance, the light box body is made of light materials with excellent mechanical performance, and the hemispherical convex structure is processed on the surface of the buffer heat-insulation outer layer, so that the protection box is guaranteed to have good buffer resistance and heat insulation performance on the basis of light weight; in addition, each part structure of protective housing is easy for large-scale production, and the equipment is convenient with the dismantlement, and each part can all carry out the individual design according to the in-service use operating mode environment of protective housing moreover to make the protective housing can satisfy the application demand of various outside operating modes and different built-in goods and materials.
In summary, the above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (5)

1. The utility model provides an anti-fall strikes light heat preservation protective housing which characterized in that: the protective box comprises a buffer heat-insulation outer layer, a light box body and a buffer protective inner layer, wherein the buffer heat-insulation outer layer is wrapped outside the light box body, and the buffer protective inner layer is arranged inside the light box body;
the buffer heat-insulation outer layer and the buffer protection inner layer are both selected to have the density of 300-400 kg/m3The thermal conductivity coefficient is 0.03-0.04W/(m.K), and the energy absorption per unit volume is 60-120 MJ/m3The polyurethane elastomer of (1); a hemispherical convex structure is processed on the buffer heat-preservation outer layer, and a limiting groove is arranged on the buffer protection inner layer;
the density of the light box body is 1.5-2.7 g/cm3Fiber composite materials or alloy materials with tensile strength more than or equal to 200MPa and compressive strength more than or equal to 200 MPa; the light box body is a closed hollow box body formed by an upper box body and a lower box body through a buckle component.
2. The drop impact resistant lightweight thermal protection box according to claim 1, characterized in that: the thickness of the buffer heat-preservation outer layer is sigma, the radius of the hemispherical convex structures on the buffer heat-preservation outer layer is r, the number of the hemispherical convex structures which are uniformly distributed on the buffer heat-preservation outer layer is n, and then
Figure FDA0003564070970000011
6h1≤r≤8h1
Figure FDA0003564070970000012
Figure FDA0003564070970000013
Figure FDA0003564070970000014
Wherein, c1Represents the specific heat capacity of the contents, m1Representing the mass of the contents, c2Represents the specific heat capacity, T, of the polyurethane elastomer2Represents the ambient temperature in the starting protective housing, T'1Represents the starting content temperature, T'2Finally, the temperature in the protective box is protected, the negative sign represents that the heat transfer direction is opposite to the temperature gradient direction, and the lambda represents heat conductionCoefficient, t represents the holding time, g represents the acceleration of gravity, W represents the width of the protective box, H represents the height at which the protective box falls, A represents the surface area of the protective box, M represents the total mass of the contents in the protective box, V represents the volume of the protective box, ρ represents the density of the polyurethane elastomer, V represents the temperature of the polyurethane elastomer, g represents the acceleration of the polyurethane elastomer, W represents the width of the polyurethane elastomer, H represents the falling height of the polyurethane elastomer, H represents the surface area of the polyurethane elastomer, M represents the total mass of the contents of the polyurethane elastomer, and g represents the volume of the polyurethane elastomerTable (Ref. Table)For buffering the total volume of all the hemispherical convex structures on the heat-insulating outer layer, h1And the stacking height of all the hemispherical convex structures on the outer surface buffer heat-preservation outer layer is evenly distributed.
3. The drop impact resistant lightweight thermal protection box according to claim 1, characterized in that: the polyurethane elastomer material selected for the buffer heat-insulation outer layer and the buffer protection inner layer is obtained by reacting, curing and molding the component A and the component B;
the component A comprises, by mass, 15-25 parts of EP-330N, 5-75 parts of ED-1465, 3-10 parts of BDO and H20.40-0.48 part of O, 0.10-0.15 part of BDMAEE, 0.02-0.78 part of T120.01, 0.85-0.95 part of perforated silicone oil and 2-6 parts of activated carbon fiber;
the component B is PM-200, and the molar ratio of-NCO groups contained in the component B to active-H groups contained in the component A is (0.98-1.03): 1.00.
4. The drop impact resistant lightweight thermal insulation protective box according to claim 3, characterized in that: the specific operation of the reaction of the component A and the component B is as follows: preheating the component A to 35 +/-2 ℃ and preheating the component B to 45 +/-2 ℃, then pouring the preheated component A and the preheated component B into a mold preheated to 65 +/-5 ℃, and curing and molding at 60-70 ℃ to obtain the polyurethane elastomer.
5. The drop impact resistant lightweight thermal insulation protective box according to claim 1, characterized in that: the light box body is made of glass fiber composite materials, carbon fiber composite materials, basalt fiber composite materials, aluminum alloy materials or titanium alloy materials.
CN202210303991.5A 2022-03-25 2022-03-25 Anti-drop impact light heat-insulation protective box Active CN114633941B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202210303991.5A CN114633941B (en) 2022-03-25 2022-03-25 Anti-drop impact light heat-insulation protective box

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202210303991.5A CN114633941B (en) 2022-03-25 2022-03-25 Anti-drop impact light heat-insulation protective box

Publications (2)

Publication Number Publication Date
CN114633941A true CN114633941A (en) 2022-06-17
CN114633941B CN114633941B (en) 2023-03-24

Family

ID=81950574

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202210303991.5A Active CN114633941B (en) 2022-03-25 2022-03-25 Anti-drop impact light heat-insulation protective box

Country Status (1)

Country Link
CN (1) CN114633941B (en)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202115883U (en) * 2011-07-01 2012-01-18 中国人民解放军军事医学科学院卫生装备研究所 Heat-insulation box for field operations
CN204750820U (en) * 2015-05-24 2015-11-11 亳州师范高等专科学校 Fast dismouting packing box
JP2017052209A (en) * 2015-09-10 2017-03-16 三菱樹脂株式会社 Polylactic acid laminated film, heat-shrinkable laminated film using the laminated film, molded article and heat-shrinkable label using the heat-shrinkable laminated film, and container using the molded article or having label mounted thereon
CN206798204U (en) * 2016-10-27 2017-12-26 杭州沛文科技有限公司 A kind of box for material circulation
CN109018621A (en) * 2018-09-12 2018-12-18 张家港精工包装彩印有限公司 Multi-functional shock-proof keeps the temperature packing case
CN215044565U (en) * 2021-03-25 2021-12-07 深圳圆满智能电子有限公司 Heat insulation box

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202115883U (en) * 2011-07-01 2012-01-18 中国人民解放军军事医学科学院卫生装备研究所 Heat-insulation box for field operations
CN204750820U (en) * 2015-05-24 2015-11-11 亳州师范高等专科学校 Fast dismouting packing box
JP2017052209A (en) * 2015-09-10 2017-03-16 三菱樹脂株式会社 Polylactic acid laminated film, heat-shrinkable laminated film using the laminated film, molded article and heat-shrinkable label using the heat-shrinkable laminated film, and container using the molded article or having label mounted thereon
CN206798204U (en) * 2016-10-27 2017-12-26 杭州沛文科技有限公司 A kind of box for material circulation
CN109018621A (en) * 2018-09-12 2018-12-18 张家港精工包装彩印有限公司 Multi-functional shock-proof keeps the temperature packing case
CN215044565U (en) * 2021-03-25 2021-12-07 深圳圆满智能电子有限公司 Heat insulation box

Also Published As

Publication number Publication date
CN114633941B (en) 2023-03-24

Similar Documents

Publication Publication Date Title
Ma et al. A review of the recent trends on core structures and impact response of sandwich panels
CN104220247B (en) The manufacture method of honeycomb and honeycomb with the honeycomb core being be arranged in parallel with plate surface
US7806365B2 (en) Long endurance hydrogen powered vehicle
US10132597B2 (en) Ballistic-resistant structural insulated panels
Davidson et al. Lifting options for stratospheric aerosol geoengineering: advantages of tethered balloon systems
CN105258385A (en) Cooling and heating machine and applications thereof
Mital et al. Review of current state of the art and key design issues with potential solutions for liquid hydrogen cryogenic storage tank structures for aircraft applications
BRPI1001654B1 (en) SUPER-HARD AIRCRAFT CONTINUOUSLY SELF-SUSTAINABLE, ITS STRUCTURAL CHARACTERISTICS AND ITS CONSTRUCTIVE PROCESS
IL101336A (en) Missile canister and its production
DE202011050486U1 (en) insulating element
CN114633941B (en) Anti-drop impact light heat-insulation protective box
WO2021216695A1 (en) Low-density structured materials and methods of making and using same
KR102676307B1 (en) Liquid hydrogen Hydrogen storage container
US9027782B1 (en) Composite material based insulated shipping container
Williams Williams
US5374476A (en) Thermal insulating system and method
CN108945407A (en) A kind of unmanned plane logistics transportation equipment
KR102676297B1 (en) Liquid hydrogen storage container
Ma et al. Sandwich structural core materials and properties
CN100385194C (en) Composite material made box body structure for storage and conveying launch box
CN114516946B (en) Outer-layer buffering thermal insulation material for anti-drop impact light protective box
CN1331710C (en) Hard-shell balloon or airship using hydrogen safety and able to control its lifting
CN206394863U (en) Gasbag-type hovering flight device
CN108659193A (en) A kind of preparation process of microporous polyurethane elastomer new material
WO2008076147A2 (en) Building made of hexagonal layers

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant