Engine heat dissipation device and forming process thereof

The invention relates to the technical field of oil pan forming, in particular to an engine heat dissipation device which is arranged at the lower end of an engine body and comprises an oil pan, the oil pan is provided with a windward end and a leeward end, a heat dissipation cavity is formed in the bottom of the oil pan, and an upper heat dissipation plate is formed in the upper portion of the heat dissipation cavity. An upper plate of the heat dissipation cavity forms an upper heat dissipation plate, a lower plate of the heat dissipation cavity forms a lower heat dissipation plate, the heat dissipation cavity penetrates through the oil pan at the windward end and the leeward end, a plurality of connecting bodies for connecting the upper heat dissipation plate with the lower heat dissipation plate are arranged in the heat dissipation cavity, and the heat dissipation cavity is divided into a plurality of flowing channels for communicating the windward end with the leeward end by the connecting bodies; the wid