Composite environment-friendly cabinet shell with heat insulation and noise reduction functions

Abstract

The utility model relates to the technical field of environment-friendly cabinets, in particular to a heat-insulating and noise-reducing composite environment-friendly cabinet shell which comprises a shell body, the shell body comprises an inner layer, a middle heat-insulating and noise-reducing layer and an outer layer which are sequentially arranged from inside to outside, and the inner layer, the middle heat-insulating and noise-reducing layer and the outer layer are tightly attached and connected through environment-friendly adhesives. The middle heat insulation and noise reduction layer is composed of a porous sound absorption material layer and a heat insulation material layer, and a plurality of sound absorption plates are detachably installed on the inner wall of the shell. According to the composite environment-friendly cabinet shell capable of insulating heat and reducing noise, external heat can be more efficiently prevented from being transmitted into the cabinet, and internal heat can be more efficiently prevented from being lost. Taking an environment-friendly cabinet for storing medicines as an example, in a high-temperature environment, the temperature in the cabinet can be quickly increased by a traditional shell, and the quality of the medicines is influenced; according to the design, the temperature fluctuation in the cabinet can be controlled within an extremely small range, a stable storage environment is provided for articles sensitive to the temperature, article deterioration or equipment failure caused by temperature change is avoided, and the stability and reliability of the environment in the cabinet are greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of environmental protection cabinet technology, specifically to a composite environmental protection cabinet shell with heat insulation and noise reduction. Background Technology

[0002] In the field of environmental protection cabinet technology, with the continuous development of technology and people's increasing demands for environmental protection and user experience, the performance requirements for the outer shell of environmental protection cabinets are becoming more diversified and stringent.

[0003] Currently, there are various shell structures and technologies for environmental protection cabinets on the market. For example, patent application number CN202110248040 discloses a multifunctional honeycomb composite panel with heat insulation, sound insulation and corrosion resistance and its preparation method. It adopts a composite honeycomb structure and has certain heat insulation and sound insulation effects. However, when actually applied to environmental protection cabinets, the honeycomb composite panel of this structure may be inconvenient to clean and maintain due to the easy accumulation of dust in the internal honeycomb structure. Moreover, its noise reduction effect is not good in terms of the uniformity of different frequency noise in the complex noise environment inside the cabinet.

[0004] For example, patent application number CN202020176858 proposes an energy-saving, heat-insulating, and noise-reducing outdoor integrated cabinet. It uses rainwater storage pipes on the side wall of the cabinet to cool down by evaporating water and a special structure at the air conditioner outlet to reduce noise. However, this method is greatly affected by the ambient humidity and is difficult to effectively play a heat insulation role in dry areas. Furthermore, it only addresses the noise of the air conditioner and lacks comprehensive measures to deal with other noises generated by the operation of the equipment inside the cabinet.

[0005] There is also a heat-insulating and sound-absorbing composite ecological board disclosed in patent application number CN202122260799. Although it solves the problem of poor heat insulation and sound absorption performance of ecological boards to a certain extent, if it is applied to environmental protection cabinets, its moisture-proof performance may be insufficient for environmental protection cabinets that are in a complex humidity environment for a long time. In addition, the structural strength of the ecological board is not ideal when it is subjected to frequent opening and closing and collisions during the handling of environmental protection cabinets.

[0006] Traditional eco-friendly cabinet shells have numerous shortcomings in terms of heat insulation, noise reduction, and environmental performance. Regarding heat insulation, many shells are ineffective at protecting the internal environment from external temperature changes, leading to significant temperature fluctuations that affect the quality of stored items and the normal operation of the equipment. For example, in eco-friendly cabinets storing temperature-sensitive medicines or electronic devices, unstable temperatures can cause medicine deterioration and shorten the lifespan of electronic equipment. In terms of noise reduction, existing shells are inadequate for effectively blocking and absorbing noise generated by the equipment inside the cabinet, as well as external noise. In places with high noise control requirements, such as hospitals and schools, excessive noise can not only disrupt normal work and study but also negatively impact patient recovery. Furthermore, from an environmental perspective, some materials used in traditional shells pollute the environment during production, use, and disposal, contradicting current sustainable development principles. For instance, shells made with non-environmentally friendly adhesives or materials containing harmful chemicals release large amounts of pollutants during production, are difficult to degrade after disposal, and long-term accumulation can damage soil and water sources. Utility Model Content

[0007] The purpose of this utility model is to provide a heat-insulating and noise-reducing composite environmental protection cabinet shell to solve the problems mentioned in the background art regarding the many defects of traditional environmental protection cabinet shells in terms of heat insulation, noise reduction and environmental protection performance.

[0008] To achieve the above objectives, this utility model provides a heat-insulating and noise-reducing composite environmentally friendly cabinet shell, comprising a shell, which includes an inner layer, a middle heat-insulating and noise-reducing layer, and an outer layer arranged sequentially from the inside to the outside. The inner layer, the middle heat-insulating and noise-reducing layer, and the outer layer are tightly bonded together by an environmentally friendly adhesive. The middle heat-insulating and noise-reducing layer is composed of a porous sound-absorbing material layer and a heat-insulating material layer. Several sound-absorbing panels are detachably installed on the inner wall of the shell. An upper clamping plate is installed on the back of each sound-absorbing panel, and a matching lower clamping plate is installed on the inner wall of the shell. The upper clamping plate and the lower clamping plate are engaged to achieve detachable installation and fixation of the sound-absorbing panels.

[0009] This design employs a multi-layered composite structure consisting of an inner layer, a middle heat-insulating and noise-reducing layer, and an outer layer, with each layer working collaboratively. The inner layer is in direct contact with the items inside the cabinet, the middle heat-insulating and noise-reducing layer performs the core functions of heat insulation and noise reduction, and the outer layer protects against the external environment. All layers are tightly bonded together using environmentally friendly adhesives to ensure coordinated operation. The middle heat-insulating and noise-reducing layer is further divided into a porous sound-absorbing material layer and a heat-insulating material layer, addressing noise and heat respectively. Removable sound-absorbing panels allow for flexible adjustment of the sound absorption effect according to the actual noise environment.

[0010] Preferably, the inner layer is made of skin-friendly and environmentally friendly material and is used to directly contact the items inside the cabinet, while the outer layer is made of high-strength and environmentally friendly material and is used to resist the impact of external environmental factors on the cabinet.

[0011] The inner layer of this design uses skin-friendly and environmentally friendly materials. Based on the skin-friendly properties of the materials, they can gently contact the items inside the cabinet, avoiding scratches, corrosion, or other damage to the surface of the items. The outer layer uses high-strength and environmentally friendly materials. Utilizing the high strength of the materials themselves, they can resist the impact of external physical impacts, wind, sun, and other environmental factors on the cabinet. At the same time, the use of environmentally friendly materials is in line with the concept of sustainable development.

[0012] Preferably, the porous sound-absorbing material layer is made of polyester fiber sound-absorbing cotton material, and multiple sound-absorbing holes of different sizes are evenly distributed in the porous sound-absorbing material layer. The pore diameter of the sound-absorbing holes ranges from 0.5 to 2 mm. By combining sound-absorbing holes of different sizes, the absorption of noise of different frequencies can be achieved.

[0013] This design utilizes a porous sound-absorbing material layer made of polyester fiber sound-absorbing cotton, with evenly distributed sound-absorbing holes of varying sizes (0.5-2mm in diameter). When sound encounters these holes during propagation, it causes the air inside to vibrate. Due to friction and damping between the air and the hole walls, the sound energy is converted into heat energy and dissipated. Different sizes of sound-absorbing holes have different absorption effects on noise of different frequencies. Through a reasonable combination, effective absorption of noise across the entire frequency range can be achieved.

[0014] Preferably, the heat insulation material layer is an aerogel felt layer, and the thermal conductivity of the aerogel felt layer is less than 0.02 W / (m·K), which can effectively prevent heat transfer and achieve a good heat insulation effect.

[0015] The insulation layer in this installation uses aerogel felt, a material with extremely low thermal conductivity (less than 0.02 W / (m·K)). Its interior contains numerous nanoscale pores, which effectively prevent heat conduction, convection, and radiation. When external heat attempts to enter the cabinet or internal heat dissipates outwards, the special structure of the aerogel felt greatly hinders the heat transfer process, thus achieving excellent insulation.

[0016] Preferably, the outer surface of the outer layer is provided with a scratch-resistant and wear-resistant coating, which is made of nano-ceramic coating and has a thickness of 0.1-0.3 mm to enhance the durability of the outer layer.

[0017] The outer surface of this feature is coated with a nano-ceramic coating, which is characterized by high hardness and strong wear resistance. During daily use and handling of the eco-friendly cabinet, when the outer surface is scratched or rubbed by external objects, the hard coating formed by the nano-ceramic coating can effectively resist these external forces and reduce surface damage.

[0018] Preferably, the shell has an arc-shaped transition structure at each of its four corners. The radius of curvature of the arc-shaped transition structure is 2-5cm. The arc-shaped transition structure is integrally formed from the same high-strength environmentally friendly material as the outer layer, which can effectively prevent collision damage and reduce stress concentration.

[0019] This design incorporates arc-shaped transition structures at the four corners of the casing, altering the stress distribution at these corners. Upon impact, the arc-shaped structure disperses the impact force, preventing stress concentration at a single point. Simultaneously, the integrally molded high-strength, environmentally friendly material ensures the strength and stability of the arc-shaped structure, enabling it to withstand significant impact forces without damage.

[0020] Preferably, the surface of the housing is provided with several heat dissipation vents, and louvers that can be manually opened and closed are installed in the heat dissipation vents.

[0021] This feature includes manually openable louvers installed inside the heat dissipation vents. Based on the louver blade structure, when heat dissipation is needed, the louvers can be manually opened, and the tilt angle of the blades can guide airflow and accelerate the dissipation of heat inside the cabinet. When heat dissipation is not needed or the external environment is harsh (such as dusty conditions or rain), the louvers can be closed, and the blades can prevent dust and rainwater from entering the cabinet, thus providing protection.

[0022] Preferably, a moisture-proof layer is provided between the inner layer and the middle heat insulation and noise reduction layer. The moisture-proof layer is a graphene-modified polyethylene film layer with a thickness of 0.05-0.1 mm, which can effectively prevent external moisture from entering the cabinet. A reinforcing rib structure is provided between the middle heat insulation and noise reduction layer and the outer layer. The reinforcing rib structure is distributed in a grid pattern and is made of glass fiber reinforced plastic to enhance the overall strength and stability of the outer shell.

[0023] The moisture-proof layer between the inner layer and the middle heat insulation and noise reduction layer is made of graphene-modified polyethylene film. Utilizing the high barrier properties of graphene and the waterproof characteristics of polyethylene film, a moisture-proof barrier is formed to prevent external moisture from entering the cabinet. The mesh-like glass fiber reinforced plastic reinforcing rib structure between the middle heat insulation and noise reduction layer and the outer layer enhances the structural strength and stability of the shell in all directions through the high strength characteristics of glass fiber reinforced plastic, disperses external forces, and reduces the possibility of shell deformation.

[0024] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0025] The heat-insulating and noise-reducing composite eco-friendly cabinet uses an aerogel felt layer with a thermal conductivity of less than 0.02 W / (m·K) as the insulation material. Compared to traditional eco-friendly cabinet shells, this more effectively prevents external heat from entering the cabinet and internal heat from dissipating. Taking eco-friendly cabinets for storing medicines as an example, in high-temperature environments, traditional shells may cause the internal temperature to rise rapidly, affecting the quality of the medicines. This design, however, can control the internal temperature fluctuations within a very small range, providing a stable storage environment for temperature-sensitive items and preventing spoilage or equipment malfunction due to temperature changes, greatly improving the stability and reliability of the internal environment.

[0026] The porous sound-absorbing material layer uses polyester fiber sound-absorbing cotton and combines sound-absorbing holes of different sizes (0.5-2mm) to overcome the limitations of traditional environmental protection cabinet shells that can only reduce noise at a single frequency. Whether it's high-frequency equipment operation noise or low-frequency mechanical vibration noise, it can be effectively absorbed and blocked. In noise-sensitive places such as hospitals and schools, it can significantly reduce the noise generated by the equipment inside the cabinet as well as external noise, creating a quiet environment for users and reducing noise interference with work, study, and patient recovery. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0028] Figure 2 This is a schematic diagram of the internal structure of the present invention;

[0029] Figure 3 This is a schematic diagram of the sound-absorbing panel in this utility model;

[0030] The meanings of the labels in the diagram are as follows:

[0031] 1. Shell; 11. Inner layer; 12. Heat insulation and noise reduction layer; 121. Porous sound-absorbing material layer; 122. Heat insulation material layer; 13. Outer layer; 2. Heat dissipation vent; 3. Sound-absorbing panel; 31. Upper plate; 32. Lower plate. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0033] This utility model provides a heat-insulating and noise-reducing composite environmentally friendly cabinet shell, such as... Figure 1 , Figure 2As shown, the housing includes a shell 1, which includes an inner layer 11, a middle heat insulation and noise reduction layer 12, and an outer layer 13 arranged sequentially from the inside to the outside. The inner layer 11, the middle heat insulation and noise reduction layer 12, and the outer layer 13 are tightly bonded together by an environmentally friendly adhesive. The middle heat insulation and noise reduction layer 12 is composed of a porous sound-absorbing material layer 121 and a heat-insulating material layer 122. Several sound-absorbing panels 3 are detachably installed on the inner wall of the shell 1.

[0034] The system employs a multi-layered composite structure consisting of an inner layer 11, a middle heat-insulating and noise-reducing layer 12, and an outer layer 13, with each layer working collaboratively. The inner layer 11 is in direct contact with the items inside the cabinet, the middle heat-insulating and noise-reducing layer 12 performs the core functions of heat insulation and noise reduction, and the outer layer 13 protects against the external environment. All layers are tightly bonded together using environmentally friendly adhesives, ensuring coordinated operation. The middle heat-insulating and noise-reducing layer 12 is further divided into a porous sound-absorbing material layer 121 and a heat-insulating material layer 122, respectively addressing noise and heat. Several detachable sound-absorbing panels 3 are installed on the inner wall of the shell 1, allowing for flexible adjustment of the sound absorption effect according to the actual noise environment. This integrates multiple functions such as heat insulation, noise reduction, and protection, giving the environmentally friendly cabinet shell more comprehensive performance. The tight bonding of each layer enhances the overall integrity and stability of the shell; the design of the detachable sound-absorbing panels 3 improves the shell's adaptability to different noise environments, effectively reducing noise generated by the operation of equipment inside the cabinet and noise from the outside, while ensuring good heat insulation and providing a suitable storage environment for the items inside. An upper clamping plate 31 is installed on the back of the sound-absorbing panel 3, and a matching lower clamping plate 32 is installed on the inner wall of the housing 1. The upper clamping plate 31 and the lower clamping plate 32 are engaged to achieve the detachable installation and fixation of the sound-absorbing panel 3.

[0035] In this embodiment, as Figure 1 , Figure 2 As shown, the inner layer 11 is made of skin-friendly and environmentally friendly material and is used to directly contact the items inside the cabinet, while the outer layer 13 is made of high-strength and environmentally friendly material and is used to resist the impact of external environmental factors on the cabinet.

[0036] The inner layer 11 is made of skin-friendly and environmentally friendly material. Based on the material's skin-friendly properties, it can gently contact the items inside the cabinet, avoiding scratches, corrosion, or other damage to the surface. The outer layer 13 is made of high-strength environmentally friendly material. Utilizing the material's inherent strength, it resists the impact of external physical impacts, wind, sun, and other environmental factors on the cabinet. The use of environmentally friendly materials also aligns with sustainable development principles. The inner layer 11 protects the integrity and quality of the items inside the cabinet, ensuring that they are not adversely affected by the material itself during storage. The outer layer 13 enhances the durability and environmental resistance of the environmentally friendly cabinet's outer shell, extending its lifespan. Furthermore, it reduces environmental pollution during production, use, and disposal, achieving the dual value of environmental protection and practicality.

[0037] Specifically, such as Figure 1 , Figure 2As shown, the porous sound-absorbing material layer 121 is made of polyester fiber sound-absorbing cotton. Multiple sound-absorbing holes of different sizes are evenly distributed in the porous sound-absorbing material layer 121. The pore diameter of the sound-absorbing holes ranges from 0.5 to 2 mm. By combining sound-absorbing holes of different sizes, the absorption of noise of different frequencies can be achieved.

[0038] The porous sound-absorbing material layer 121 is made of polyester fiber sound-absorbing cotton, with multiple sound-absorbing holes of different sizes ranging from 0.5-2mm evenly distributed inside. When sound encounters these sound-absorbing holes during propagation, it causes the air inside the holes to vibrate. Due to the friction and damping effect between the air and the hole walls, the sound energy is converted into heat energy and dissipated. Different sizes of sound-absorbing holes have different absorption effects on noise of different frequencies. Through reasonable combination, effective absorption of noise across the entire frequency band can be achieved. This significantly improves the noise reduction performance of the enclosure, effectively absorbing high-frequency noise generated by the operation of equipment inside the cabinet, such as fan rotation noise, and low-frequency noise, such as mechanical vibration noise, as well as various external noises, creating a quiet environment inside the cabinet. It is suitable for places with high noise requirements, such as hospitals, schools, and laboratories.

[0039] Furthermore, the insulation material layer 122 is an aerogel felt layer, and the thermal conductivity of the aerogel felt layer is less than 0.02 W / (m·K), which can effectively prevent heat transfer and achieve a good insulation effect.

[0040] The insulation layer 122 is made of aerogel felt, a material with an extremely low thermal conductivity of less than 0.02 W / (m·K). It contains numerous nanoscale pores that effectively prevent heat conduction, convection, and radiation. When external heat attempts to enter the cabinet or internal heat dissipates, the special structure of the insulation layer 122 greatly hinders heat transfer, thus achieving excellent insulation. This effectively maintains a stable internal temperature, preventing significant fluctuations due to changes in external temperature. For environmentally friendly cabinets storing temperature-sensitive items such as medicines and electronic equipment, this ensures that items are stored in a suitable temperature environment, preventing deterioration or damage due to unsuitable temperatures, and guaranteeing the quality of the items and the normal operation of the equipment.

[0041] Furthermore, the outer surface of the outer layer 13 is provided with a scratch-resistant and wear-resistant coating, which is made of nano-ceramic coating and has a thickness of 0.1-0.3mm, to enhance the durability of the outer layer.

[0042] The outer surface of the outer layer 13 is coated with a scratch-resistant and wear-resistant layer, made of nano-ceramic coating with a thickness of 0.1-0.3mm. This nano-ceramic coating possesses high hardness and strong wear resistance. During daily use and handling of the environmental protection cabinet, when the outer surface is scratched or rubbed by external objects, this scratch-resistant and wear-resistant coating effectively resists these external forces, reducing surface damage. This greatly enhances the durability of the outer layer 13, allowing the cabinet's outer shell to maintain its surface integrity and aesthetics over long-term use. It reduces the risk of surface wear affecting the protective performance of the outer shell, extends the service life of the environmental protection cabinet, and reduces the cost of maintenance and replacement of the outer shell.

[0043] Furthermore, each of the four corners of the shell 1 is provided with an arc-shaped transition structure with a curvature radius of 2-5cm. The arc-shaped transition structure is integrally formed from the same high-strength environmentally friendly material as the outer layer 13, which can effectively prevent collision damage and reduce stress concentration.

[0044] The four corners of the outer shell 1 are all equipped with arc-shaped transition structures with a radius of curvature of 2-5cm, integrally molded from the same high-strength environmentally friendly material as the outer layer 13. The arc design alters the stress distribution at the corners, dispersing the impact force upon collision and preventing stress concentration at any single point. Simultaneously, the integrally molded high-strength environmentally friendly material ensures the strength and stability of the arc structure, allowing it to withstand significant impact forces without damage. This effectively prevents damage to the outer shell corners upon collision, improves the shell's impact resistance, and protects the integrity of the cabinet structure. The arc design also avoids potential accidental injuries from right-angled corners, improving safety and making the environmentally friendly cabinet more aesthetically pleasing and streamlined.

[0045] Furthermore, such as Figure 3 As shown, the surface of the housing 1 is provided with several heat dissipation vents 2, and the heat dissipation vents 2 are equipped with louvers that can be opened and closed manually.

[0046] Several heat dissipation vents 2 are formed on the surface of the housing 1, and manually openable louvers are installed inside the vents 2. Based on the louver blade structure, when heat dissipation is needed, the louvers can be manually opened, and the tilt angle of the blades can guide airflow and accelerate the dissipation of heat inside the cabinet; when heat dissipation is not needed or the external environment is harsh, such as dusty conditions or rain, the louvers can be closed, and the blades can prevent dust and rainwater from entering the cabinet, thus providing protection. This achieves flexible switching between heat dissipation and protection functions, ensuring normal heat dissipation for the equipment inside the cabinet while effectively coping with different external environments, preventing dust from affecting equipment operation or rainwater from damaging the equipment, thereby improving the environmental adaptability and reliability of the environmental protection cabinet.

[0047] Furthermore, a moisture-proof layer is provided between the inner layer 11 and the middle heat insulation and noise reduction layer 12. The moisture-proof layer is a graphene-modified polyethylene film layer with a thickness of 0.05-0.1mm, which can effectively prevent external moisture from entering the cabinet. A reinforcing rib structure is provided between the middle heat insulation and noise reduction layer 12 and the outer layer 13. The reinforcing rib structure is distributed in a grid pattern and is made of glass fiber reinforced plastic to enhance the overall strength and stability of the outer shell.

[0048] A moisture-proof layer, consisting of a graphene-modified polyethylene film layer with a thickness of 0.05-0.1mm, is installed between the inner layer 11 and the middle heat-insulating and noise-reducing layer 12. Utilizing the high barrier properties of graphene and the waterproof characteristics of the polyethylene film, it forms a moisture barrier to prevent external moisture from entering the cabinet. A reinforcing rib structure, distributed in a grid pattern, is installed between the middle heat-insulating and noise-reducing layer 12 and the outer layer 13. Made of glass fiber reinforced plastic, this structure enhances the structural strength and stability of the outer shell in all directions, dispersing external forces and reducing the possibility of deformation. The moisture-proof layer effectively protects the items inside the cabinet from moisture, making it suitable for areas with high humidity or for storing moisture-sensitive items. The reinforcing rib structure significantly improves the overall strength and stability of the outer shell, making the cabinet less prone to deformation and damage during pressure, impact, or handling, extending its service life and improving its reliability and practicality.

[0049] When the heat-insulating and noise-reducing composite environmentally friendly cabinet shell of this utility model is in use, when external heat attempts to enter the cabinet, it first encounters the outer layer 13, which acts as an initial barrier. The heat is then transferred to the heat-insulating material layer 122 of the middle heat-insulating and noise-reducing layer 12, namely the aerogel felt layer. The numerous nano-sized pores inside the aerogel felt layer effectively prevent heat conduction, convection, and radiation, greatly hindering heat transfer and significantly reducing the amount of heat entering the cabinet. If the equipment inside the cabinet generates heat, it will also be difficult to dissipate outwards when passing through the heat-insulating material layer 122 due to its special structure, thus maintaining a stable temperature inside the cabinet and providing a suitable temperature environment for temperature-sensitive items and equipment.

[0050] Noise Reduction Working Principle and Process: Noise generated by the operation of equipment inside the cabinet or noise from the outside, upon reaching the outer shell, first enters the porous sound-absorbing material layer 121 of the intermediate heat insulation and noise reduction layer 12. The polyester fiber sound-absorbing cotton material contains sound-absorbing holes of varying sizes, ranging from 0.5 to 2 mm, which act on noise of different frequencies. The sound causes the air inside the sound-absorbing holes to vibrate, and the friction and damping between the air and the hole walls converts the sound energy into heat energy, which is then dissipated. Simultaneously, the removable sound-absorbing panels 3 on the inner wall also play a role, further absorbing residual noise. The multiple sound-absorbing structures work together to achieve efficient absorption of noise across the entire frequency range, reducing the noise level inside the cabinet and creating a quiet environment.

[0051] Protective Working Principle and Process: The outer layer 13 uses high-strength environmentally friendly materials to directly resist external physical impacts, such as collisions and scratches. Its outer surface has a nano-ceramic scratch-resistant and wear-resistant coating with a thickness of 0.1-0.3mm. With its high hardness and wear resistance, it reduces damage to the surface from external objects, protecting the integrity of the outer shell. The arc-shaped transition structure at the four corners has a curvature radius of 2-5cm, which disperses the impact force upon impact, avoids stress concentration, and improves the impact resistance of the corners. The skin-friendly environmentally friendly material of the inner layer 11 protects the items inside the cabinet, preventing material damage. The graphene-modified polyethylene film moisture-proof layer between the inner layer 11 and the intermediate heat insulation and noise reduction layer 12 has a thickness of 0.05-0.1mm. Utilizing the high barrier properties of graphene and the waterproof properties of the polyethylene film, it prevents external moisture from entering the cabinet, protecting moisture-sensitive items.

[0052] The heat dissipation working principle and process: When the equipment inside the cabinet generates heat and needs to dissipate it, manually open the louvers inside heat dissipation vent 2. The tilt angle of the louvers guides airflow, accelerating the exchange of heat between the cabinet and the outside air, and dissipating the heat. When heat dissipation is not needed, or when the external environment is harsh, such as dusty conditions or rain, close the louvers. The louvers prevent dust and rainwater from entering the cabinet, avoiding dust affecting equipment operation or rainwater intrusion damaging the equipment, thus achieving flexible switching between heat dissipation and protection functions.

[0053] Overall Collaborative Operation: The inner layer 11, the middle heat insulation and noise reduction layer 12, and the outer layer 13 are tightly bonded together with an environmentally friendly adhesive to form a unified whole. The grid-like distribution of glass fiber reinforced plastic reinforcing ribs between the middle heat insulation and noise reduction layer 12 and the outer layer 13 enhances the overall strength and stability of the outer shell. This allows each part to work collaboratively to meet external environmental factors and internal functional requirements, ensuring that the environmental protection cabinet shell achieves multiple functions such as heat insulation, noise reduction, protection, and heat dissipation, providing excellent protection and a suitable environment for the items and equipment inside the cabinet.

[0054] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A heat-insulating and noise-reducing composite environmentally friendly cabinet shell, comprising a shell (1), characterized in that: The housing (1) includes an inner layer (11), a middle heat insulation and noise reduction layer (12), and an outer layer (13) arranged sequentially from the inside to the outside. The inner layer (11), the middle heat insulation and noise reduction layer (12), and the outer layer (13) are tightly bonded together by an environmentally friendly adhesive. The middle heat insulation and noise reduction layer (12) is composed of a porous sound-absorbing material layer (121) and a heat-insulating material layer (122). Several sound-absorbing panels (3) are detachably installed on the inner wall of the housing (1). An upper clamping plate (31) is installed on the back of the sound-absorbing panel (3). A matching lower clamping plate (32) is installed on the inner wall of the housing (1). The upper clamping plate (31) and the lower clamping plate (32) are engaged to realize the detachable installation and fixation of the sound-absorbing panel (3).

2. The heat-insulating and noise-reducing composite environmentally friendly cabinet shell according to claim 1, characterized in that: The inner layer (11) is made of skin-friendly and environmentally friendly material and is used to directly contact the items inside the cabinet. The outer layer (13) is made of high-strength and environmentally friendly material and is used to resist the influence of external environmental factors on the cabinet.

3. The heat-insulating and noise-reducing composite environmentally friendly cabinet shell according to claim 1, characterized in that: The porous sound-absorbing material layer (121) is made of polyester fiber sound-absorbing cotton. Multiple sound-absorbing holes of different sizes are evenly distributed in the porous sound-absorbing material layer (121). The diameter of the sound-absorbing holes ranges from 0.5 to 2 mm. By combining sound-absorbing holes of different sizes, the absorption of noise of different frequencies can be achieved.

4. The heat-insulating and noise-reducing composite environmentally friendly cabinet shell according to claim 1, characterized in that: The heat insulation material layer (122) is an aerogel felt layer with a thermal conductivity of less than 0.02 W / (m·K), which can effectively prevent heat transfer and achieve a good heat insulation effect.

5. The heat-insulating and noise-reducing composite environmentally friendly cabinet shell according to claim 1, characterized in that: The outer surface of the outer layer (13) is provided with a scratch-resistant and wear-resistant coating, which is made of nano-ceramic coating and has a thickness of 0.1-0.3 mm to enhance the durability of the outer layer.

6. The heat-insulating and noise-reducing composite environmentally friendly cabinet shell according to claim 1, characterized in that: The shell (1) has an arc-shaped transition structure at each of its four corners. The radius of curvature of the arc-shaped transition structure is 2-5cm. The arc-shaped transition structure is integrally formed from the same high-strength environmentally friendly material as the outer layer (13), which can effectively prevent collision damage and reduce stress concentration.

7. The heat-insulating and noise-reducing composite environmentally friendly cabinet shell according to claim 1, characterized in that: The surface of the housing (1) is provided with several heat dissipation vents (2), and the heat dissipation vents (2) are equipped with louvers that can be opened and closed manually.

8. The heat-insulating and noise-reducing composite environmentally friendly cabinet shell according to claim 1, characterized in that: A moisture-proof layer is also provided between the inner layer (11) and the middle heat insulation and noise reduction layer (12). The moisture-proof layer is a graphene-modified polyethylene film layer with a thickness of 0.05-0.1 mm, which can effectively prevent external moisture from entering the cabinet. A reinforcing rib structure is provided between the middle heat insulation and noise reduction layer (12) and the outer layer (13). The reinforcing rib structure is distributed in a grid pattern and is made of glass fiber reinforced plastic to enhance the overall strength and stability of the outer shell.

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