Photovoltaic Insulating Layer Structure for Heat-Stable Back-Contact Bonding

The patent applies composite materials by creating a multi-layer structure consisting of a support layer and bonding layers. The support layer uses a composite formulation with resin and filler materials that provide thermal stability and resistance to contraction, while the bonding layers provide adhesion. This composite structure resolves the contradiction by combining materials with complementary properties: the support layer maintains dimensional stability under heat while the bonding layers ensure reliable connection.

The patent applies parameter changes by modifying the thermal and mechanical parameters of the insulating layer through specific material composition. The support layer is formulated with resin and filler in specific ratios to achieve controlled thermal expansion coefficients and enhanced heat resistance. By adjusting these material parameters, the patent prevents contraction and deformation under external heat while maintaining bonding capability.

The patent applies segmentation by dividing the insulating layer into functionally distinct layers: a support layer and bonding layers. The bonding layers are specifically positioned between the support layer and the solar cell panel, allowing them to handle the bonding function while the support layer provides thermal stability. This segmentation isolates the bonding function from the thermal stress, as the support layer acts as a stable foundation that resists heat-induced deformation.

The support layer acts as an intermediary between the bonding layers and the external heat environment. It mediates the thermal stress by absorbing and distributing heat, preventing direct transmission of thermal deformation to the bonding layers. This intermediary structure protects the bonding interface from heat-induced failure while maintaining connection reliability.