The utility model provides a
power module and an
electric drive assembly. The
power module comprises a plurality of chips, a plurality of
copper bars, a first substrate and a vapor chamber. The plurality of chips are fixed with the first substrate in a silver
sintering manner, so that excellent electric conduction and heat conduction properties are achieved, the fatigue effect is avoided, and the
power cycle index and the reliability of the
electric drive assembly are improved; the plurality of chips are arranged on the first substrate in pairs, and the plurality of
copper bars are electrically connected with the two chips in one group respectively, so that the connection resistance between the chips is reduced, higher current magnitude and better heat-conducting property are synchronously obtained, and the
power cycle index of the
electric drive assembly and the
heat distribution of the chips are improved. The vapor chamber is in heat conduction with the first substrate, so that heat generated by the
chip is conducted to the vapor chamber through the first substrate, the heat
conductivity coefficient is increased, and the heat conduction capability is improved. According to the
power module and the electric drive assembly, the current output capacity under the same parallel
chip condition is improved, the
power density and reliability of the power module are improved, and the service life of the power module is prolonged.