Flat-type solar collector constructed by the transparent cover, and insulation materials, heat plate, shell, and so few parts.
 1, endothermic plate: Also known as heat plate movements, is absorbing solar radiation to heat the water transmission components.  Its commonly used material is copper, aluminum (Al rust-proof requirements), stainless steel, galvanized sheet. Poor water quality in coastal areas, but also useful plastic or glass materials such as steel.
 2, Flat: endothermic board surface to be a cover for through the far infrared instead of visible light, thereby enhancing the heat plate temperature rise.
 3, insulating layer: its role is to reduce the collector to heat the surrounding environment, to improve the thermal efficiency of collectors.  Insulating layer insulation performance requirements, and thermal conductivity of material small, deformed or not volatile, no toxic gas, non-absorbent.  Common insulation layer of material Yanmian, Kuangmian, polystyrene, polyurethane foam plastic.
 4, shell casing insulation layer is the role of heat plates, sheets, insulation material to form a whole, so it should be a certain degree of steel and strength, and easy to install. Its material in general use steel, aluminum, steel or plastic glass