Fuel cell low -temperature protection device

The utility model relates to a fuel cell field especially relates to a fuel cell low -temperature protection device. Based on fuel cell's reaction principle characteristic, when low temperature environment, need to keep warm to the pile. The heater adopts stainless steel shell to constitute the pipeline among the prior art, and pipeline internal layout heating pipe carries out the structure that heats, and heating device stainless steel shell adopts multistage pipe welding, and technology is complicated, expects much to welding quality, and batch production is with high costs. The utility model discloses well device casing adopts the polygon tubular structure, can adopt section bar processing, simple structure, and the appearance is regular, be convenient for installation and batch production, place the hot plate in the cavity of circular cavity wall and polygon tubular structural formation, the heat -conducting glue is filled and is fixed the hot plate in the cavity for the cavity, and heater power can adjus