Bipolar plate for enhancing heat transfer of tail cooling water

A bipolar plate for enhancing the heat transfer of tail cooling water belongs to the technical field of fuel cells. The bipolar plate is a composite bipolar plate, and is provided with three types ofchannels, the hydrogen channel is arranged in the front side of the bipolar plate, the oxygen channel is arranged in the back side of the bipolar plate, and the cooling water channel is arranged at the middle of the bipolar plate; and the cooling water channel comprises a plurality of snakelike channels, and a plurality of spherical turbolators are uniformly distributed at the rear half part of every snakelike channel. The diameter of the spherical turbolators is more than the diameter of the snakelike channels. Further, the diameter of the spherical turbolators is 1.8-2 times the diameter ofthe snakelike channels, and a distribution spacing between the adjacent spherical turbolators is 1/35 to 1/30 of the total length of every channel. Turbulent flow of water in the spherical turbolatorsis enhanced, so the heat t