Three-layer and double-layer co-extrusion and two-way stretching one-step molding photovoltaic backboard

The utility model relates to the field of photovoltaic packaging adhesive films, in particular to a three-layer co-extrusion and two-way stretching one-step forming photovoltaic back plate, which comprises a one-step forming ABC structure, wherein the ABC structure comprises an outer layer, a core layer and a bonding layer from outside to inside; wherein the bonding layer is directly combined with the adhesive film in the assembly packaging stage; according to the three-layer co-extrusion and two-way stretching one-time forming photovoltaic backboard, the three-layer co-extrusion one-time forming is realized through arranging the ABC structure, the coating does not need to be coated on the outer layer, the working procedures are reduced, and the one-time forming is realized. 本实用新型涉及光伏封装胶膜领域，具体涉及一种三层共挤及双向拉伸一次成型光伏背板，包括：一次成型的ABC结构；其中所述ABC结构自外而内包括外层、芯层和粘接层；其中所述粘接层在封装组件阶段直接与胶膜结合；本实用新型的三层共挤及双向拉伸一次成型光伏背板通过设置ABC结构三层共挤一次成型，无需在外层涂覆涂层，减少了工序实现了一次成型。