Direct current charging protocol conversion circuit board for new energy electric vehicle

The utility model relates to a direct current charging protocol conversion circuit board of a new energy electric automobile, which comprises a circuit board body, a first circuit element, a second circuit element and a third circuit element, the heat dissipation mechanism comprises two fixing blocks which are fixedly installed on the outer walls of the left side and the right side of the circuit board body, fixing rods are slidably installed in the fixing blocks, and limiting plates are fixedly installed on the peripheral walls of the fixing rods. According to the direct-current charging protocol conversion circuit board for the new energy electric vehicle, the direct-current charging protocol conversion circuit board is connected with other elements lower than the first circuit element under the action of a first heat dissipation column, a second heat dissipation column and heat conduction cotton which are mounted at the bottom of the vapor chamber; the heat of the circuit board is conducted to the vapor ch