Wireless communication equipment user external waterproof convection heat insulation box and heat conduction coating

Abstract

The application relates to a wireless communication equipment user external waterproof convection heat insulation box and a heat conduction coating, the heat insulation box comprises a box body and a heat conduction coating coated on the inner surface of the box body; the box body is made of aluminum alloy material, the outer surface of the box body is subjected to bright silver oxidation treatment; the box body is provided with an upper air vent and a lower air vent; the heat conduction coating comprises the following raw materials in parts by weight: flaky graphite 45-50 parts, carbon nanotubes 3-5 parts, carbon black 4-6 parts, boron nitride 2-3 parts, a solvent 8-10 parts, an epoxy-polyurethane copolymer resin 18-22 parts, a curing agent 5-7 parts, a coupling agent 1-2 parts, a catalyst 0.1-0.25 parts, a plasticizer 0.2-0.75 parts and a functional additive 4-5 parts; the outer surface of the heat insulation box body can reflect external strong light and heat; the heat in the box body is transmitted through the heat conduction coating; and the convection structure formed by the upper air vent and the lower air vent can quickly discharge the internal heat, thereby providing good waterproof and heat insulation protection for the wireless communication equipment.

Description

Technical Field

[0001] This invention relates to the field of communication equipment protection technology, specifically to an outdoor waterproof convection insulation box and thermally conductive coating for wireless communication equipment. Background Technology

[0002] Outdoor heat shields for wireless communication equipment, such as 5G base stations and outdoor switches, are exposed to high temperature, high humidity, and strong sunlight for extended periods. Traditional protective boxes are simple box-shaped structures that merely cover the equipment, preventing direct sunlight and rain damage. However, they lack heat dissipation structures, allowing heat generated by direct sunlight and the equipment's operation to accumulate inside the box, causing excessively high temperatures, affecting the equipment's efficiency, and even damaging it. Furthermore, to extend the box's lifespan, the casing is typically made of metal, which can easily lead to electromagnetic shielding issues. Therefore, there is an urgent need for a new type of protective box that can both protect communication equipment from rain damage and provide efficient heat dissipation. Summary of the Invention

[0003] In order to overcome the shortcomings and deficiencies of the existing technology, the purpose of this invention is to provide an outdoor waterproof convection insulation box and thermal conductive coating for wireless communication devices.

[0004] The objective of this invention is achieved through the following technical solution: an outdoor waterproof convection insulation box for wireless communication devices: comprising a box body and a thermally conductive coating applied to the inner surface of the box body; the box body is made of aluminum alloy; the box body has a main body and a side door rotatably connected to the main body, the main body and the side door forming an inner cavity for accommodating external devices, the external devices entering the inner cavity through the side door, and the thermally conductive coating for transferring the heat generated by the external devices to the aluminum alloy box body, which then dissipates the heat to the external environment.

[0005] Furthermore, one side of the main body of the box is connected to one side of the side door via a hinge, and the other side of the main body is fixedly connected to the other side of the side door via screws.

[0006] Furthermore, the inner surface of the box is treated with degreasing and sandblasting.

[0007] Furthermore, the outer surface of the housing is treated with bright silver oxidation.

[0008] Furthermore, the enclosure has a first ventilation opening and a second ventilation opening, which are respectively located at both ends of the enclosure and form a convection structure; the first ventilation opening and the second ventilation opening each have heat dissipation fins.

[0009] Furthermore, the first ventilation opening is located in the middle of the upper part of the housing, and the second ventilation opening is located in the middle of the lower part of the housing; both the first and second ventilation openings are equipped with dustproof nets.

[0010] Furthermore, the heat dissipation fins are evenly arranged along the outer wall surface where the first vent is located and the outer wall surface where the second vent is located, with a height of 10-30mm and a spacing of 5-15mm.

[0011] Furthermore, the housing also has a baffle, which has a flat plate and a guide plate formed by bending from both sides of the flat plate. The flat plate is located above the first ventilation opening and covers the housing. The guide plate is an inclined surface protruding from the housing and is used to guide the water flow.

[0012] Furthermore, the enclosure also has a support portion and a mounting portion. The support portion is located on the outer surface of the enclosure and is used to fix the enclosure to the external bearing surface. The mounting portion is located on the inner surface of the enclosure, and external equipment is fixed in the accommodating cavity via the mounting portion.

[0013] Furthermore, the support is located on the side of the box away from the side door, and there are two supports, one located at each end of the box.

[0014] Furthermore, the two ends of the mounting part respectively abut against the two sides of the box body, and there are four mounting parts, which are evenly arranged on both sides of the box body.

[0015] Furthermore, both the mounting portion and the support portion have screw holes.

[0016] Furthermore, the bottom of the enclosure is provided with a wiring hole, through which the wiring of external devices exits the enclosure.

[0017] The inner surface of the insulated box of this invention is coated with a thermally conductive coating to conduct heat generated by the internal wireless communication equipment to the box. The box is made of aluminum alloy, which has good heat transfer and dissipation properties. Furthermore, the outer surface of the box is treated with bright silver oxidation, which reflects more than 90% of sunlight and further improves the heat dissipation rate. The first and second vents located at both ends of the box form a chimney-like convection structure, creating convective airflow within the box and accelerating heat dissipation to the external environment. Both the first and second vents are covered with dustproof nets to prevent small animals from entering the insulated box and damaging external equipment. A baffle is also provided above the first vent to prevent rainwater from entering.

[0018] Another object of the present invention is to provide a thermally conductive coating for an outdoor heat insulation box of a wireless communication device, comprising the following raw materials in parts by weight: 45-50 parts flake graphite, 3-5 parts carbon nanotubes, 4-6 parts carbon black, 2-3 parts boron nitride, 8-10 parts solvent, 18-22 parts epoxy-polyurethane copolymer resin, 5-7 parts curing agent, 1-2 parts coupling agent, 0.1-0.25 parts catalyst, 0.2-0.75 parts plasticizer, and 4-5 parts functional additives.

[0019] Furthermore, the solvent is at least one of ethanol and butanol.

[0020] Furthermore, the volume ratio of ethanol to butanol is 3-4:1.

[0021] Furthermore, the epoxy-polyurethane copolymer resin is selected from Covestro Desmophen C2200 and Wanhua EPU-601.

[0022] Furthermore, the curing agent is selected from isocyanate curing agents and alicyclic amine curing agents.

[0023] Furthermore, the isocyanate curing agent is Desmodur N3900, and the alicyclic amine curing agent is Wanhua C-101.

[0024] Furthermore, the coupling agent is selected from silane coupling agents and titanate coupling agents.

[0025] Furthermore, the silane coupling agent is selected from Momentive KH-560, and the titanate coupling agent is selected from DuPont Tyzor TPT.

[0026] Furthermore, the catalyst is an organotin catalyst, which is selected from Evonik DBTDL.

[0027] Furthermore, the plasticizer is selected from at least one of BASF Hexamoll DINCH and Dow DEH85.

[0028] Furthermore, the functional additives include the following raw materials in parts by weight: 2-3 parts dispersant, 0.5-1 part leveling agent, and 0.5-1 part corrosion inhibitor.

[0029] Furthermore, the dispersant is a polyacrylate.

[0030] Furthermore, the polyacrylate dispersant is selected from BASF Disperyk-180.

[0031] Furthermore, the leveling agent is an acrylate, and the acrylate leveling agent is selected from Evka 3777.

[0032] Furthermore, the corrosion inhibitor is selected from one of molybdate corrosion inhibitors and organic corrosion inhibitors; wherein the molybdate corrosion inhibitor is Albemarle Molywhite 101, and the organic corrosion inhibitor is Lanxess Addition RC7000.

[0033] In this invention, flake graphite forms a thermally conductive framework, and carbon nanotubes connect the gaps between the graphite flakes to construct a three-dimensional thermally conductive network, improving thermal conductivity. Carbon black nanoparticles are used to fill micropores, improving the filler-resin interface contact and assisting heat conduction. At the same time, boron nitride is introduced to improve the electromagnetic shielding effect induced by graphite. Curing agents and catalysts are added to control the curing speed of the thermally conductive coating. Epoxy-polyurethane copolymer resin acts as a binder, providing film-forming properties, adhesion, and flexibility, connecting the carbon material and the aluminum alloy substrate. Coupling agents are used to bridge the resin with the substrate and filler, enhancing interfacial bonding and preventing coating peeling. Plasticizers can improve the flexibility of the coating and prevent cracking caused by thermal expansion and contraction. Dispersants prevent filler agglomeration through electrostatic repulsion, reduce system viscosity, and improve spray flowability.

[0034] This invention is a power-free product, suitable for various environments. The enclosure is made of aluminum alloy and has a first and second ventilation opening that form a convection structure similar to a chimney. The outer surface of the enclosure is treated with bright silver oxidation to reflect sunlight and heat from the outside. The inner surface of the enclosure is coated with a thermally conductive coating to conduct heat generated by the internal wireless communication equipment in a timely manner, preventing heat from accumulating inside the enclosure. In addition, the boron nitride added to the coating can reduce the electromagnetic shielding effect of graphite, so as to protect the internal wireless communication equipment from heat and water sources without affecting its operation. Attached Figure Description

[0035] Figure 1 This is a schematic diagram of the structure of an outdoor waterproof convection insulation box for a wireless communication device according to the present invention;

[0036] Figure 2 This is a schematic diagram of the internal structure of the heat insulation box of the present invention.

[0037] The reference numerals in the attached drawings include: 1. Housing; 2. Heat dissipation fins; 3. First vent; 4. Second vent; 5. Baffle; 51. Flat plate; 52. Guide plate; 6. Support; 7. Mounting part; 8. Wiring hole. Detailed Implementation

[0038] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to embodiments. The content mentioned in the embodiments is not intended to limit the present invention.

[0039] In some embodiments of the present invention, a wireless communication device provides an outdoor waterproof convection insulation box: comprising a box body 1 and a thermally conductive coating applied to the inner surface of the box body 1; the box body 1 is made of aluminum alloy; the box body 1 has a main body and a side door rotatably connected to the main body, the main body and the side door forming an inner cavity for accommodating external devices, the external devices entering the inner cavity through the side door; the thermally conductive coating is used to transfer the heat generated by the external devices to the aluminum alloy box body 1, and then the aluminum alloy box body 1 dissipates it to the external environment.

[0040] In some embodiments of the present invention, one side of the main body of the box 1 is rotatably connected to one side of the side door via a hinge, and the other side of the main body is fixedly connected to the other side of the side door via screws.

[0041] In some embodiments of the present invention, the inner surface of the housing 1 is treated with degreasing and sandblasting.

[0042] In some embodiments of the present invention, the outer surface of the housing 1 is subjected to bright silver oxidation treatment.

[0043] In some embodiments of the present invention, the housing 1 has a first ventilation opening 3 and a second ventilation opening 4, which are respectively located at both ends of the housing 1 and form a convection structure; the first ventilation opening 3 and the second ventilation opening 4 each have heat dissipation fins 2.

[0044] In some embodiments of the present invention, the first vent 3 is located in the middle of the upper end of the housing 1, and the second vent 4 is located in the middle of the lower end of the housing 1; the first vent 3 and the second vent 4 are provided with dustproof nets.

[0045] In some embodiments of the present invention, the heat dissipation fins 2 are evenly arranged along the outer wall surface where the first vent 3 is located and the outer wall surface where the second vent 4 is located, and the height of the heat dissipation fins 2 is 10-30mm and the spacing is 5-15mm.

[0046] In some embodiments of the present invention, the housing 1 further includes a baffle 5, the baffle 5 having a flat plate 51 and a guide plate 52 formed by bending from both sides of the flat plate 51, the flat plate 51 being disposed above the first ventilation opening 3 and covering the housing 1; the guide plate 52 being an inclined surface protruding from the housing 1 for guiding water flow.

[0047] In some embodiments of the present invention, the housing 1 further includes a support portion 6 and a mounting portion 7. The support portion 6 is disposed on the outer surface of the housing 1 and is used to fix the housing 1 on the external bearing surface. The mounting portion 7 is disposed on the inner surface of the housing 1, and external equipment is fixed in the accommodating cavity via the mounting portion 7.

[0048] In some embodiments of the present invention, the support part 6 is provided on the side of the box body 1 away from the side door, and there are two support parts 6, which are respectively provided at both ends of the box body 1.

[0049] In some embodiments of the present invention, the two ends of the mounting part 7 respectively abut against the two sides of the accommodating cavity of the box body 1. There are four mounting parts 7, and the four mounting parts 7 are evenly arranged on both sides of the box body 1. That is, two mounting parts 7 are respectively provided on both sides of the box body 1, and the two mounting parts 7 located on one side of the box body 1 are symmetrically arranged with the two mounting parts 7 located on the other side of the box body 1.

[0050] In some embodiments of the present invention, both the mounting part 7 and the support part 6 have screw holes.

[0051] In some embodiments of the present invention, the bottom of the housing 1 is provided with a wire hole 8, through which the wiring of external devices passes out of the housing 1.

[0052] Another object of the present invention is to provide a thermally conductive coating for an outdoor heat insulation box of a wireless communication device, comprising the following raw materials in parts by weight: 45-50 parts flake graphite, 3-5 parts carbon nanotubes, 4-6 parts carbon black, 2-3 parts boron nitride, 8-10 parts solvent, 18-22 parts epoxy-polyurethane copolymer resin, 5-7 parts curing agent, 1-2 parts coupling agent, 0.1-0.25 parts catalyst, 0.2-0.75 parts plasticizer, and 4-5 parts functional additives.

[0053] Furthermore, the solvent is ethanol and butanol.

[0054] Furthermore, the volume ratio of ethanol to butanol is 3-4:1.

[0055] Furthermore, the epoxy-polyurethane copolymer resin is selected from Covestro Desmophen C2200 and Wanhua EPU-601.

[0056] Furthermore, the curing agent is selected from isocyanate curing agents and alicyclic amine curing agents.

[0057] Furthermore, the isocyanate curing agent is Desmodur N3900, and the alicyclic amine curing agent is Wanhua C-101.

[0058] Furthermore, the coupling agent is selected from silane coupling agents and titanate coupling agents.

[0059] Furthermore, the silane coupling agent is selected from Momentive KH-560, and the titanate coupling agent is selected from DuPont Tyzor TPT.

[0060] Furthermore, the catalyst is an organotin catalyst, which is selected from Evonik DBTDL.

[0061] Furthermore, the plasticizer is selected from at least one of BASF Hexamoll DINCH and Dow DEH85.

[0062] Furthermore, the functional additives include the following raw materials in parts by weight: 2-3 parts dispersant, 0.5-1 part leveling agent, and 0.5-1 part corrosion inhibitor.

[0063] Furthermore, the dispersant is a polyacrylate.

[0064] Furthermore, the polyacrylate dispersant is selected from BASF Disperyk-180.

[0065] Furthermore, the leveling agent is an acrylate, and the acrylate leveling agent is selected from Evka 3777.

[0066] Furthermore, the corrosion inhibitor is selected from one of molybdate corrosion inhibitors and organic corrosion inhibitors; wherein the molybdate corrosion inhibitor is Albemarle Molywhite 101, and the organic corrosion inhibitor is Lanxess Addition RC7000.

[0067] Example 1

[0068] This embodiment provides an outdoor waterproof convection insulation box for wireless communication devices: it includes a box body 1 and a thermally conductive coating applied to the inner surface of the box body 1; the box body 1 is made of aluminum alloy; the box body 1 has a main body and a side door rotatably connected to the main body, the main body and the side door enclose an inner cavity for accommodating external devices, the external devices enter the inner cavity through the side door, and the thermally conductive coating is used to transfer the heat generated by the external devices to the aluminum alloy box body 1, and then the aluminum alloy box body 1 dissipates it to the external environment.

[0069] Furthermore, one side of the main body of the box 1 is connected to one side of the side door via a hinge, and the other side of the main body is fixedly connected to the other side of the side door via screws.

[0070] Furthermore, the inner surface of the housing 1 is treated with degreasing and sandblasting, and the roughness is 2.0Ra.

[0071] Furthermore, the outer surface of the housing 1 is subjected to a bright silver oxidation treatment.

[0072] Furthermore, the housing 1 has a first ventilation opening 3 and a second ventilation opening 4, which are respectively located at both ends of the housing 1 and form a convection structure; the first ventilation opening 3 and the second ventilation opening 4 each have heat dissipation fins 2.

[0073] Furthermore, the first ventilation opening 3 is located in the middle of the upper end of the housing 1, and the second ventilation opening 4 is located in the middle of the lower end of the housing 1; both the first ventilation opening 3 and the second ventilation opening 4 are equipped with dustproof nets.

[0074] Furthermore, the heat dissipation fins 2 are evenly arranged along the outer wall surface where the first ventilation port 3 is located and the outer wall surface where the second ventilation port 4 is located. The height of the heat dissipation fins 2 is 20mm and the spacing is 10mm.

[0075] Furthermore, the housing 1 also has a baffle 5, which has a flat plate 51 and a guide plate 52 formed by bending from both sides of the flat plate 51. The flat plate 51 is located above the first ventilation opening 3 and covers the housing 1. The guide plate 52 is an inclined surface protruding from the housing 1, and the inclination angle of the guide plate 52 is 45°, which is used to guide the water flow.

[0076] Furthermore, the housing 1 also has a support part 6 and a mounting part 7. The support part 6 is located on the outer surface of the housing 1 and is used to fix the housing 1 on the external bearing surface. The mounting part 7 is located on the inner surface of the housing 1, and external equipment is fixed in the accommodating cavity via the mounting part 7.

[0077] In this embodiment, the support part 6 is located on the side of the box body 1 away from the side door, and there are two support parts 6, which are respectively located at both ends of the box body 1.

[0078] In this embodiment, the two ends of the mounting part 7 respectively abut against the two sides of the accommodating cavity of the box body 1. There are four mounting parts 7, and the four mounting parts 7 are evenly arranged on both sides of the box body 1. That is, two mounting parts 7 are respectively arranged on both sides of the box body 1. The two mounting parts 7 located on one side of the box body 1 are symmetrically arranged with the two mounting parts 7 located on the other side of the box body 1.

[0079] In this embodiment, both the mounting part 7 and the support part 6 have screw holes.

[0080] Furthermore, the bottom of the housing 1 is provided with a wire hole 8, through which the wiring of external devices passes out of the housing 1.

[0081] This embodiment also provides a thermally conductive coating for an outdoor heat insulation box of a wireless communication device, comprising the following raw materials in parts by weight: 48 parts flake graphite, 4 parts carbon nanotubes, 5 parts carbon black, 2.5 parts boron nitride, 9 parts solvent, 20 parts epoxy-polyurethane copolymer resin, 6 parts curing agent, 1.5 parts coupling agent, 0.15 parts catalyst, 0.5 parts plasticizer, and 4 parts functional additives.

[0082] Furthermore, the solvent is ethanol and butanol, with a volume ratio of ethanol to butanol of 3.5:1.

[0083] Furthermore, the epoxy-polyurethane copolymer resin is selected from Covestro Desmophen C2200.

[0084] Furthermore, the curing agent is selected from isocyanate curing agents, specifically Desmodur N3900.

[0085] Furthermore, the coupling agent is selected from silane coupling agents, specifically Momentive KH-560.

[0086] Furthermore, the catalyst is an organotin catalyst, specifically Evonik DBTDL.

[0087] Furthermore, the plasticizer is selected from BASF Hexamoll DINCH.

[0088] Furthermore, the functional additives include the following raw materials in parts by weight: 2.5 parts dispersant, 0.7 parts leveling agent, and 0.8 parts corrosion inhibitor.

[0089] Furthermore, the dispersant is a polyacrylate, specifically BASF Disperyk-180.

[0090] Furthermore, the leveling agent is an acrylate, specifically Efka 3777.

[0091] Furthermore, the corrosion inhibitor is selected from molybdate corrosion inhibitors, specifically Albemarle Molywhite 101.

[0092] Example 2

[0093] This embodiment provides an outdoor waterproof convection insulation box for wireless communication devices: it includes a box body 1 and a thermally conductive coating applied to the inner surface of the box body 1; the box body 1 is made of aluminum alloy; the box body 1 has a main body and a side door rotatably connected to the main body, the main body and the side door enclose an inner cavity for accommodating external devices, the external devices enter the inner cavity through the side door, and the thermally conductive coating is used to transfer the heat generated by the external devices to the aluminum alloy box body 1, and then the aluminum alloy box body 1 dissipates it to the external environment.

[0094] Furthermore, one side of the main body of the box 1 is connected to one side of the side door via a hinge, and the other side of the main body is fixedly connected to the other side of the side door via screws.

[0095] Furthermore, the inner surface of the housing 1 is treated with degreasing and sandblasting, and the roughness is 2.0Ra.

[0096] Furthermore, the outer surface of the housing 1 is subjected to a bright silver oxidation treatment.

[0097] Furthermore, the housing 1 has a first ventilation opening 3 and a second ventilation opening 4, which are respectively located at both ends of the housing 1 and form a convection structure; the first ventilation opening 3 and the second ventilation opening 4 each have heat dissipation fins 2.

[0098] Furthermore, the first ventilation opening 3 is located in the middle of the upper end of the housing 1, and the second ventilation opening 4 is located in the middle of the lower end of the housing 1; both the first ventilation opening 3 and the second ventilation opening 4 are equipped with dustproof nets.

[0099] Furthermore, the heat dissipation fins 2 are evenly arranged along the outer wall surface where the first ventilation port 3 is located and the outer wall surface where the second ventilation port 4 is located, with a height of 15mm and a spacing of 5mm.

[0100] Furthermore, the housing 1 also has a baffle 5, which has a flat plate 51 and a guide plate 52 formed by bending from both sides of the flat plate 51. The flat plate 51 is located above the first ventilation opening 3 and covers the housing 1. The guide plate 52 is an inclined surface protruding from the housing 1, and the inclination angle of the guide plate 52 is 45°, which is used to guide the water flow.

[0101] Furthermore, the housing 1 also has a support part 6 and a mounting part 7. The support part 6 is located on the outer surface of the housing 1 and is used to fix the housing 1 on the external bearing surface. The mounting part 7 is located on the inner surface of the housing 1, and external equipment is fixed in the accommodating cavity via the mounting part 7.

[0102] In this embodiment, the support part 6 is located on the side of the box body 1 away from the side door, and there are two support parts 6, which are respectively located at both ends of the box body 1.

[0103] In this embodiment, the two ends of the mounting part 7 respectively abut against the two sides of the accommodating cavity of the box body 1, and there are four mounting parts 7, which are evenly arranged on both sides of the box body 1.

[0104] In this embodiment, both the mounting part 7 and the support part 6 have screw holes.

[0105] Furthermore, the bottom of the housing 1 is provided with a wire hole 8, through which the wiring of external devices passes out of the housing 1.

[0106] This embodiment also provides a thermally conductive coating for an outdoor heat insulation box of a wireless communication device, comprising the following raw materials in parts by weight: 46 parts flake graphite, 4.8 parts carbon nanotubes, 5.5 parts carbon black, 2.7 parts boron nitride, 8.3 parts solvent, 21.5 parts epoxy-polyurethane copolymer resin, 5.5 parts curing agent, 1.8 parts coupling agent, 0.22 parts catalyst, 0.3 parts plasticizer, and 4 parts functional additives.

[0107] Furthermore, the solvent is ethanol and butanol, with a volume ratio of ethanol to butanol of 4:1.

[0108] Furthermore, the epoxy-polyurethane copolymer resin is selected from Wanhua EPU-601.

[0109] Furthermore, the curing agent is selected from alicyclic amine curing agents, specifically Wanhua C-101.

[0110] Furthermore, the coupling agent is selected from titanate coupling agents, specifically DuPont Tyzor TPT.

[0111] Furthermore, the catalyst is an organotin catalyst, specifically Evonik DBTDL.

[0112] Furthermore, the plasticizer is selected from Dow DEH85.

[0113] Furthermore, the functional additives include the following raw materials in parts by weight: 3 parts dispersant, 0.5 parts leveling agent, and 0.5 parts corrosion inhibitor.

[0114] Furthermore, the dispersant is a polyacrylate, specifically BASF Disperyk-180.

[0115] Furthermore, the leveling agent is an acrylate, specifically Efka 3777.

[0116] Furthermore, the corrosion inhibitor is selected from molybdate corrosion inhibitors, specifically Lanxess Addition RC7000.

[0117] Example 3

[0118] This embodiment provides an outdoor waterproof convection insulation box for wireless communication devices: it includes a box body 1 and a thermally conductive coating applied to the inner surface of the box body 1; the box body 1 is made of aluminum alloy; the box body 1 has a main body and a side door rotatably connected to the main body, the main body and the side door enclose an inner cavity for accommodating external devices, the external devices enter the inner cavity through the side door, and the thermally conductive coating is used to transfer the heat generated by the external devices to the aluminum alloy box body 1, and then the aluminum alloy box body 1 dissipates it to the external environment.

[0119] Furthermore, one side of the main body of the box 1 is connected to one side of the side door via a hinge, and the other side of the main body is fixedly connected to the other side of the side door via screws.

[0120] Furthermore, the inner surface of the housing 1 is treated with degreasing and sandblasting, and the roughness is 2.0Ra.

[0121] Furthermore, the outer surface of the housing 1 is subjected to a bright silver oxidation treatment.

[0122] Furthermore, the housing 1 has a first ventilation opening 3 and a second ventilation opening 4, which are respectively located at both ends of the housing 1 and form a convection structure; the first ventilation opening 3 and the second ventilation opening 4 each have heat dissipation fins 2.

[0123] Furthermore, the first ventilation opening 3 is located in the middle of the upper end of the housing 1, and the second ventilation opening 4 is located in the middle of the lower end of the housing 1; both the first ventilation opening 3 and the second ventilation opening 4 are equipped with dustproof nets.

[0124] Furthermore, the heat dissipation fins 2 are evenly arranged along the outer wall surface where the first ventilation port 3 is located and the outer wall surface where the second ventilation port 4 is located, with a height of 30mm and a spacing of 15mm.

[0125] Furthermore, the housing 1 also has a baffle 5, which has a flat plate 51 and a guide plate 52 formed by bending from both sides of the flat plate 51. The flat plate 51 is located above the first ventilation opening 3 and covers the housing 1. The guide plate 52 is an inclined surface protruding from the housing 1, and the inclination angle of the guide plate 52 is 60°, which is used to guide the water flow.

[0126] Furthermore, the housing 1 also has a support part 6 and a mounting part 7. The support part 6 is located on the outer surface of the housing 1 and is used to fix the housing 1 on the external bearing surface. The mounting part 7 is located on the inner surface of the housing 1, and external equipment is fixed in the accommodating cavity via the mounting part 7.

[0127] In this embodiment, the support part 6 is located on the side of the box body 1 away from the side door, and there are two support parts 6, which are respectively located at both ends of the box body 1.

[0128] In this embodiment, the two ends of the mounting part 7 respectively abut against the two sides of the accommodating cavity of the box body 1, and there are four mounting parts 7, which are evenly arranged on both sides of the box body 1.

[0129] In this embodiment, both the mounting part 7 and the support part 6 have screw holes.

[0130] Furthermore, the bottom of the housing 1 is provided with a wire hole 8, through which the wiring of external devices passes out of the housing 1.

[0131] This embodiment also provides a thermally conductive coating for an outdoor heat insulation box of a wireless communication device, comprising the following raw materials in parts by weight: 49 parts flake graphite, 3.3 parts carbon nanotubes, 4.1 parts carbon black, 2.7 parts boron nitride, 9.8 parts solvent, 18.5 parts epoxy-polyurethane copolymer resin, 6.7 parts curing agent, 1.85 parts coupling agent, 0.11 parts catalyst, 0.75 parts plasticizer, and 4 parts functional additives.

[0132] Furthermore, the solvent is ethanol and butanol, with a volume ratio of ethanol to butanol of 3:1.

[0133] Furthermore, the epoxy-polyurethane copolymer resin is selected from Covestro Desmophen C2200. Furthermore, the curing agent is selected from isocyanate amine curing agents, specifically Desdocur.

[0134] Furthermore, the coupling agent is selected from titanate coupling agents, specifically Momentive KH-560.

[0135] Furthermore, the catalyst is an organotin catalyst, specifically Evonik DBTDL.

[0136] Furthermore, the plasticizer is selected from Dow DEH85.

[0137] Furthermore, the functional additives include the following raw materials in parts by weight: 2 parts dispersant, 1 part leveling agent, and 1 part corrosion inhibitor.

[0138] Furthermore, the dispersant is a polyacrylate, specifically BASF Disperyk-180.

[0139] Furthermore, the leveling agent is an acrylate, specifically Efka 3777.

[0140] Furthermore, the corrosion inhibitor is selected from molybdate corrosion inhibitors, specifically Albemarle Molywhite 101.

[0141] Comparative Example 1

[0142] The difference between this comparative example and Example 1 is that the thermally conductive coating of the outdoor heat insulation box of the wireless communication equipment in this comparative example does not contain carbon nanotubes. The specific weight parts of the raw materials are as follows: 50 parts flake graphite, 7 parts carbon black, 2.5 parts boron nitride, 9 parts solvent, 20 parts epoxy-polyurethane copolymer resin, 6 parts curing agent, 1.5 parts coupling agent, 0.15 parts catalyst, 0.5 parts plasticizer, and 4 parts functional additives. The rest of the contents of this comparative example are the same as those of Example 1, and will not be repeated here.

[0143] Comparative Example 2

[0144] The difference between this comparative example and Example 1 is that the thermally conductive coating of the outdoor heat insulation box of the wireless communication equipment in this comparative example does not contain boron nitride, and the proportions of the other raw materials are the same as those in Example 1, which will not be repeated here.

[0145] Comparative Example 3

[0146] The difference between this comparative example and Example 1 is that the wireless communication device in this comparative example does not have any thermally conductive coating applied to the inner surface of the outdoor heat insulation box. The rest of the structure is the same as that in Example 1, and will not be described again here.

[0147] Performance tests were conducted on the outdoor thermal insulation boxes of the wireless communication devices in Examples 1-3 and Comparative Examples 1-3. The test results are shown in the table below:

[0148]

[0149] In both Examples 1-3 and Comparative Examples 1-3, the wall thickness of the enclosure is 45 mm, and in both Examples 1-3 and Comparative Examples 1-2, the thickness of the thermally conductive coating is 100 μm.

[0150] Steady-state heat dissipation power refers to the amount of heat dissipated by an object per unit time through heat conduction, convection, and radiation when the object's temperature remains constant and the input and output heat are equal. This represents the maximum heat that the enclosure can dissipate per unit time. Absolute thermal resistance measures the degree to which the enclosure impedes heat transfer; the lower the thermal resistance, the higher the heat dissipation efficiency. Temperature rise represents the difference between the internal temperature of the enclosure and the ambient temperature. Electromagnetic shielding effectiveness represents the enclosure's ability to attenuate electromagnetic waves. Specifically, steady-state heat dissipation power is measured according to the method in IEC 60571, using a 100W heater to simulate equipment load and measuring the heat dissipation power of the enclosure in thermal equilibrium. Absolute thermal resistance is tested according to the method in ASTM D5470. Temperature rise is tested according to the method in JESD 51-2. Electromagnetic shielding effectiveness is tested according to the method in IEEE 299.1 at a frequency of 2.5GHz.

[0151] As can be seen from the above, the thermally conductive coating of the outdoor thermal insulation box for wireless communication equipment of the present invention can improve the steady-state heat dissipation power of the box through the synergistic effect of multi-dimensional fillers; the boron nitride therein can effectively reduce the electromagnetic shielding effect of the coating, ensuring that the box has good heat dissipation function while balancing insulation, and is suitable for outdoor thermal insulation boxes for wireless communication equipment.

[0152] The wireless communication device outdoor heat insulation box of this invention is a power-free product, suitable for various environments. The box body is made of aluminum alloy and has a first ventilation port and a second ventilation port forming a convection structure similar to a chimney. The outer surface of the box body is treated with bright silver oxidation to reflect sunlight and heat from the outside. The inner surface of the box body is coated with a thermally conductive coating, which can promptly conduct the heat generated by the internal wireless communication device and prevent heat from accumulating inside the box body. In addition, the boron nitride added to the coating can reduce the electromagnetic shielding effect of graphite, so as to protect the internal wireless communication device from heat sources and water sources without affecting the operation of the wireless communication device.

[0153] The specific embodiments described above are further illustrations of the technical solution and beneficial effects of the present invention, and are not intended to limit the implementation methods. For those skilled in the art, any obvious substitutions without departing from the concept of the present invention are within the protection scope of the present invention.

Claims

1. An outdoor waterproof convection insulation box for wireless communication equipment, characterized in that: The device includes a housing (1) and a thermally conductive coating applied to the inner surface of the housing (1). The housing (1) is made of aluminum alloy. The housing (1) has a main body and a side door that is rotatably connected to the main body. The main body and the side door form an inner cavity for accommodating external equipment. The thermally conductive coating is used to transfer the heat generated by the external equipment to the aluminum alloy housing (1). The thermally conductive coating includes the following raw materials in parts by weight: 45-50 parts of flake graphite, 3-5 parts of carbon nanotubes, 4-6 parts of carbon black, 2-3 parts of boron nitride, 8-10 parts of solvent, 18-22 parts of epoxy-polyurethane copolymer resin, 5-7 parts of curing agent, 1-2 parts of coupling agent, 0.1-0.25 parts of catalyst, 0.2-0.75 parts of plasticizer, and 4-5 parts of functional additives.

2. The outdoor waterproof convection insulation box for wireless communication equipment according to claim 1, characterized in that: The outer surface of the box (1) is treated with bright silver oxidation.

3. The outdoor waterproof convection insulation box for wireless communication equipment according to claim 1, characterized in that: The box (1) has a first ventilation opening (3) and a second ventilation opening (4), which are respectively located at both ends of the box (1) and form a convection structure; the first ventilation opening (3) and the second ventilation opening (4) each have heat dissipation fins (2).

4. The outdoor waterproof convection insulation box for wireless communication equipment according to claim 1, characterized in that: The box (1) also has a baffle (5), which has a flat plate (51) and a guide plate (52) formed by bending from both sides of the flat plate (51). The flat plate (51) is located above the first vent (3) and covers the box (1). The guide plate (52) is an inclined surface protruding from the box (1) and is used to guide the water flow.

5. The outdoor waterproof convection insulation box for wireless communication equipment according to claim 1, characterized in that: The enclosure (1) also has a support part (6) and an installation part (7). The support part (6) is located on the outer surface of the enclosure (1) and is used to fix the enclosure (1) on the external bearing surface. The installation part (7) is located on the inner surface of the enclosure (1) and external equipment is fixed in the accommodating cavity via the installation part (7).

6. The outdoor waterproof convection insulation box for wireless communication equipment according to claim 1, characterized in that: The bottom of the enclosure (1) is provided with a wire hole (8), through which the wiring of external equipment passes out of the enclosure (1).

7. The outdoor waterproof convection insulation box for wireless communication equipment according to claim 1, characterized in that: The solvent is at least one of ethanol and butanol.

8. The outdoor waterproof convection insulation box for wireless communication equipment according to claim 1, characterized in that: The curing agent is selected from isocyanate curing agents and alicyclic amine curing agents.

9. The outdoor waterproof convection insulation box for wireless communication equipment according to claim 1, characterized in that: The functional additives include the following raw materials in parts by weight: 2-3 parts dispersant, 0.5-1 part leveling agent, and 0.5-1 part corrosion inhibitor.

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