An air conditioning aluminum foil structure

Abstract

The utility model provides a kind of aluminium foil structure for air conditioning, including aluminium foil base material and antibacterial coating, the antibacterial coating is set on the upper surface and lower surface of aluminium foil base material, the antibacterial coating includes by inside to outside sequentially layering and setting bottom coating and surface coating, the thickness range of the antibacterial coating is 2.5-2.7g / m2, the bottom coating is formed on the surface of aluminium foil base material by 220 ℃-250 ℃ heating solidification, the surface coating is formed on the surface of aluminium foil base material by 220 ℃-250 ℃ heating solidification, reach the balance of corrosion resistance, hydrophilic, antibacterial by double-sided, double-layer coating structure, increase the durability and economy of air conditioning heat exchanger.

Description

Technical Field

[0001] This utility model relates to an aluminum foil structure for air conditioners. Background Technology

[0002] To overcome temperature differences caused by seasonal changes and improve quality of life, people have manufactured and promoted the widespread use of air conditioners, and aluminum foil happens to possess excellent heat exchange properties. Therefore, with the continuous expansion of the air conditioning market, the production of aluminum foil for air conditioning has also increased significantly. Traditional aluminum foil for air conditioning has corrosion resistance and high hydrophilicity. Corrosion resistance increases the lifespan of air conditioners, while high hydrophilicity ensures normal operation, bringing comfort to consumers.

[0003] However, while air conditioning ensures comfortable temperatures, it also promotes the growth of bacteria in the environment. Furthermore, aluminum foil surfaces also pose a risk of bacterial growth. Currently available coating foils used in air conditioning heat exchangers often fail to meet the requirements of durability and cost-effectiveness in at least one of the following aspects: corrosion resistance, hydrophilicity, and antibacterial properties.

[0004] Therefore, there is a need for an aluminum foil structure for air conditioning to solve the problem of uneven corrosion resistance, hydrophilicity, and antibacterial properties of coated foils used in existing air conditioning heat exchangers. Utility Model Content

[0005] The purpose of this utility model is to overcome the shortcomings of the prior art and provide an aluminum foil structure for air conditioners. This structure achieves a balance of corrosion resistance, hydrophilicity, and antibacterial properties through a double-sided, double-layer coating, thereby increasing the durability and economy of air conditioner heat exchangers. This purpose is achieved as follows:

[0006] This utility model proposes an aluminum foil structure for air conditioners, comprising an aluminum foil substrate and an antibacterial coating. The antibacterial coating is disposed on the upper and lower surfaces of the aluminum foil substrate. The antibacterial coating includes a base coating and a top coating layered sequentially from the inside out. The thickness of the antibacterial coating ranges from 2.5-2.7 g / m². 2 The base coating is cured and formed on the surface of the aluminum foil substrate by heating at 220℃-250℃, and the top coating is cured and formed on the surface of the aluminum foil substrate by heating at 220℃-250℃.

[0007] Furthermore, the thickness of the base coating is 1.2 g / m. 2 .

[0008] Furthermore, the thickness of the topcoat is 1.3 g / m. 2 .

[0009] Furthermore, both the base coating and the top coating contain nano-oxide silver-loaded antibacterial agents.

[0010] Compared with the prior art, the beneficial effects of this utility model are: the double-layer structure realizes functional partitioning, the antibacterial coating contains nano-oxide silver-loaded antibacterial agent, the bottom coating ensures adhesion and long-lasting antibacterial effect, and the top coating provides surface protection and instant sterilization. The synergistic effect makes the antibacterial performance more durable and stable.

[0011] The coating internal stress distribution was optimized by adjusting the coating amount ratio, which avoided cracking caused by excessive single-layer thickness, while ensuring sufficient antibacterial agent content, thus achieving better performance and economy.

[0012] Both layers are cured at high temperatures, ensuring the stability and durability of each coating layer. Attached Figure Description

[0013] Figure 1 This is a cross-sectional structural diagram of an aluminum foil structure for air conditioners;

[0014] In the diagram: 1. Aluminum foil substrate, 2. Base coating, 3. Top coating. Detailed Implementation

[0015] To enhance understanding of this utility model, the present utility model will be further described in detail below with reference to the embodiments and accompanying drawings. These embodiments are only used to explain the present utility model and do not constitute a limitation on the scope of protection of the present utility model.

[0016] Please refer to Figure 1 This utility model provides an aluminum foil structure for air conditioning, including an aluminum foil substrate 1 and an antibacterial coating. The antibacterial coating is disposed on the upper and lower surfaces of the aluminum foil substrate 1. The antibacterial coating includes a base coating 2 and a top coating 3 stacked sequentially from the inside to the outside. The thickness of the antibacterial coating ranges from 2.5 to 2.7 g / m2. The base coating 2 is cured and formed on the surface of the aluminum foil substrate 1 by heating at 220℃-250℃, and the top coating 3 is cured and formed on the surface of the aluminum foil substrate 1 by heating at 220℃-250℃.

[0017] In this embodiment, the thickness of the base coating 2 is 1.2 g / m2; the thickness of the top coating 3 is 1.3 g / m2; both the base coating 2 and the top coating 3 contain nano-oxide silver-loaded antibacterial agents.

[0018] The following is the manufacturing process of this product:

[0019] Aluminum foil rolls are sequentially passed through a degreasing tank, a two-stage washing tank, a chemical conversion tank, and a drying oven at a speed of 20 m / min. They then enter the first precision roller coater, using a 120-mesh anilox roller with a speed ratio of 1:1.2. The coating viscosity is controlled at 35 seconds, and the dry film coating weight after curing is controlled at 1.2 g / m². The aluminum foil coated with primer layer 2 enters the first curing oven, set at 235℃ with a foil running speed of 20 m / min and a curing time of 12 seconds. Hot air circulation heating is used within the oven. The fully cured aluminum foil, cooled to below 80℃, enters the second precision roller coater, using a 150-mesh anilox roller with a speed ratio of 1:1.1. The coating viscosity is controlled at 32 seconds, and the dry film coating weight of topcoat layer 3 is controlled at 1.3 g / m². g / m2; The aluminum foil coated with topcoat 3 enters the second curing oven, the oven temperature is also set at 235℃, the running speed is 20m / min, the curing time is 12 seconds, and the hot air circulation conditions inside the oven are the same as those in the first curing oven; after being cooled to room temperature by cooling rollers, it is rolled up and packaged.

[0020] Working principle: The dual-layer structure achieves functional zoning. The antibacterial coating contains nano-oxide silver-loaded antibacterial agents. The base coating 2 ensures adhesion and long-lasting antibacterial effect, while the top coating 3 provides surface protection and immediate sterilization. The synergistic effect makes the antibacterial performance more durable and stable. The coating amount ratio of this invention optimizes the stress distribution within the coating, avoiding cracking caused by excessive single-layer thickness, while ensuring sufficient antibacterial agent content for better effect and economy. Both layers adopt a high-temperature curing process, ensuring the stability and durability of each coating layer, and the performance is significantly better than that of traditional single-layer antibacterial aluminum foil for air conditioners.

[0021] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. An aluminum foil structure for air conditioners, characterized in that, The invention comprises an aluminum foil substrate and an antibacterial coating. The antibacterial coating is disposed on the upper and lower surfaces of the aluminum foil substrate. The antibacterial coating includes a base coating and a top coating layered sequentially from the inside out. The thickness of the antibacterial coating ranges from 2.5 to 2.7 g / m². 2 The base coating is cured and formed on the surface of the aluminum foil substrate by heating at 220℃-250℃, and the top coating is cured and formed on the surface of the aluminum foil substrate by heating at 220℃-250℃.

2. The aluminum foil structure for air conditioning according to claim 1, characterized in that, The thickness of the base coating is 1.2 g / m. 2 .

3. The aluminum foil structure for air conditioning according to claim 2, characterized in that, The thickness of the topcoat is 1.3 g / m. 2 .

4. The aluminum foil structure for air conditioning according to claim 3, characterized in that, Both the base coating and the top coating contain nano-oxide silver-loaded antibacterial agents.

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