Solar collector and thermal -arrest board thereof

The utility model relates to a solar collector and thermal -arrest board thereof, this thermal -arrest board include the working medium pipe fitting and the thermal -arrest sheet of laminating each other, wherein: the working medium pipe fitting be equipped with the flank in body both sides, the cross section middle part of thermal -arrest sheet laminate mutually with the flank with the working medium pipe fitting, body for the arc. This heat collector including connect house steward and the thermal -arrest board, the working medium pipe fitting of thermal -arrest board with be connected the fixed or sealed rotatable intercommunication of house steward. The utility model discloses structural design is more equitable, does benefit to comprehensive support set backing material, does benefit to and closely laminates between thermal -arrest sheet and the working medium pipe fitting, improves the heat transfer efficiency, reduces the processing and the equipment degree of difficulty.