High-reflection solar diaphragm for heat insulation
By adopting a silver layer structure arranged in three layers at intervals in the solar diaphragm, the problem of insufficient reflectivity of solar energy in the prior art is solved, and a higher reflectivity and stronger insulation ability are achieved.
Patent Information
- Application Number
- CN202421298448.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-07
- Publication Date
- 2025-02-14
- Estimated Expiration
- 2034-06-07
AI Technical Summary
The existing solar diaphragms have insufficient reflectivity to solar thermal energy and cannot effectively insulate heat.
A structure adopts a metal base layer, a first silver layer, a first metal isolation layer, a second silver layer, a second metal isolation layer, a third silver layer, a third metal isolation layer and a metal protective layer arranged in sequence from the inside to the outside. , the reflectivity is increased by the silver layer arranged at three layers at intervals.
While maintaining the visible light transmittance of 70%, the reflectivity of solar thermal energy is increased to 85%, and the insulation capacity is enhanced.
Smart Images
Figure CN222476751U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of solar energy heat insulation, in particular to a high-reflection solar energy film used for heat insulation. Background Art
[0002] Solar film can be combined with automobile glass, building curtain wall or home door and window glass to play a role in heat insulation. In the prior art, solar film uses two layers of silver layers arranged at intervals to reflect sunlight for heat insulation. According to tests, the solar film with two layers of silver layers arranged at intervals has a reflectivity of 72% for solar heat energy and a transmittance of 70% for visible light, which is not good enough for solar heat energy reflectivity. Utility Model Content
[0003] In view of the deficiencies in the prior art, the purpose of the present invention is to provide a highly reflective solar film for heat insulation to solve the problems mentioned in the above background technology section.
[0004] The utility model is realized by the following technical solutions:
[0005] A highly reflective solar film for heat insulation comprises a metal base layer, a first silver layer, a first metal isolation layer, a second silver layer, a second metal isolation layer, a third silver layer, a third metal isolation layer and a metal protective layer which are sequentially stacked from the inside to the outside.
[0006] Furthermore, the metal base layer is a zinc oxide layer.
[0007] Furthermore, the first to third metal isolation layers are all nickel oxide layers.
[0008] Furthermore, the metal protective layer is a titanium oxide layer.
[0009] Furthermore, the ratio of the thickness of the second silver layer to the thickness of the first silver layer is 2.4-1.5:1.
[0010] Furthermore, the ratio of the thickness of the second silver layer to the thickness of the third silver layer is 2.4-1.5:1.
[0011] The beneficial effects of the utility model are as follows: a highly reflective solar film for heat insulation, comprising a metal base layer, a first silver layer, a first metal isolation layer, a second silver layer, a second metal isolation layer, a third silver layer, a third metal isolation layer and a metal protective layer stacked in sequence from the inside to the outside. The utility model uses three layers of silver layers arranged at intervals to increase the reflectivity of the solar film to solar heat energy to 85% while maintaining a visible light transmittance of 70%, thereby increasing the reflectivity of the solar film and enhancing the heat insulation capacity. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1It is a schematic cross-sectional view of the microstructure of the utility model.
[0013] The above drawings include the following reference numerals:
[0014] 1. Metal base layer; 2. First silver layer; 3. First metal isolation layer; 4. Second silver layer; 5. Second metal isolation layer; 6. Third silver layer; 7. Third metal isolation layer; 8. Metal protective layer. DETAILED DESCRIPTION
[0015] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. Therefore, the following detailed description of the embodiments of the utility model provided in the drawings is not intended to limit the scope of the utility model for which protection is claimed, but merely represents selected embodiments of the utility model.
[0016] In the description of the present invention, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features.
[0017] Reference Figure 1 As shown, a highly reflective solar film for heat insulation comprises a metal base layer 1, a first silver layer 2, a first metal isolation layer 3, a second silver layer 4, a second metal isolation layer 5, a third silver layer 6, a third metal isolation layer 7 and a metal protective layer 8 which are sequentially stacked from the inside to the outside. The utility model increases the reflectivity of solar heat energy to 85% while maintaining the transmittance of visible light at 70% through three layers of silver layers arranged at intervals, thereby increasing the reflectivity of the solar film and enhancing the heat insulation capability.
[0018] The utility model uses zinc oxide material to make the metal base layer 1. The zinc oxide layer has a high transmittance in the visible light range, which allows the visible light part of the sunlight to pass through the film and enter the room to provide lighting. The zinc oxide layer usually has high chemical stability and corrosion resistance, and is connected to the glass through the zinc oxide layer, which helps to enhance the overall durability and service life of the solar film. In addition, zinc oxide is a non-toxic and environmentally friendly material. Using it as a component of the solar film can improve the environmental protection and safety of the product.
[0019] The utility model adopts nickel oxide material to make the metal isolation layer. The nickel oxide layer can selectively reflect infrared rays in sunlight and wavelengths that generate heat energy, effectively block the heat brought by these wavelengths, and reduce the transfer of heat through the glass.
[0020] The utility model uses titanium oxide material to make the metal protective layer 8. The titanium oxide layer can reflect and absorb ultraviolet rays, visible light and infrared rays in the solar spectrum, while maintaining a certain light transmittance, reducing the damage caused by direct sunlight. In addition, titanium oxide is a non-toxic and harmless material, and the solar film using the titanium oxide layer is more environmentally friendly. Compared with other materials, the titanium oxide layer is not easy to produce the problem of glare, ensuring the safety of automobile driving or the comfort of indoor personnel.
[0021] The ratio of the thickness of the second silver layer 4 to the thickness of the first silver layer 2 is 2.4-1.5: 1. The ratio of the thickness of the second silver layer 4 to the thickness of the third silver layer 6 is 2.4-1.5: 1. Thus, the three silver layers are arranged in a "thin-thick-thin" manner.
[0022] The second silver layer 4 is a thick silver layer that can more effectively reflect and absorb infrared rays in the solar spectrum, thereby significantly reducing the transfer of heat through the glass. This structure can maximize the silver layer's reflection and absorption effect on infrared rays, making the solar film have a higher heat insulation efficiency.
[0023] The thinner first silver layer 2 and third silver layer 6 on both sides can reduce the blocking of visible light while maintaining a certain heat insulation performance, so as to keep sufficient light in the car or room. The first silver layer 2 and third silver layer 6 have good light transmittance, which helps to reduce the impact of the solar film on the light in the car or room, and provide a more natural and bright indoor environment.
[0024] Compared with the design of a single-thickness silver layer, the "thin-thick-thin" arrangement can reduce material costs to a certain extent. This is because the thinner first silver layer 2 and third silver layer 6 on both sides use less material, while the second silver layer 4 in the middle, although it uses a larger amount of material, has a high heat insulation performance and can reduce dependence on other materials.
[0025] As a preferred solution, the thickness of the second silver layer 4 is between 11.5 nanometers and 12.5 nanometers.
[0026] The above description is only the preferred implementation of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.
Claims
1. A highly reflective solar film for heat insulation, characterized by: A metal base layer (1), a first silver layer (2), a first metal isolation layer (3), a second silver layer (4), a second metal isolation layer (5), a third silver layer (6), a third metal isolation layer (7) and a metal protection layer (8) are sequentially stacked from the inside to the outside.
2. A highly reflective solar film for heat insulation according to claim 1, characterized in that: The metal base layer (1) is a zinc oxide layer.
3. A highly reflective solar film for heat insulation according to claim 1, characterized in that: The first to third metal isolation layers (7) are all nickel oxide layers.
4. A highly reflective solar film for heat insulation according to claim 1, characterized in that: The metal protective layer (8) is a titanium oxide layer.
5. A highly reflective solar film for heat insulation according to claim 1, characterized in that: The ratio of the thickness of the second silver layer (4) to the thickness of the first silver layer (2) is 2.4-1.5:
1.
6. A highly reflective solar film for heat insulation according to claim 5, characterized in that: The ratio of the thickness of the second silver layer (4) to the thickness of the third silver layer (6) is 2.4-1.5:1.