Radiator and air conditioner outdoor unit

The utility model relates to the technical field of air conditioning, and discloses a radiator which comprises a blowing plate, a first heat exchanger and a second heat exchanger. A second pipeline is constructed in the heat sink base; the fin group is connected with the inflation plate; and the first pipeline and the second pipeline are communicated through a steam pipeline and a liquid pipeline to form a closed heat transfer loop. In the heat transfer process, heat can be quickly transferred to the huffing plate through the heat sink base and the heat transfer working medium in the closed heat transfer loop, the heat transfer working medium in the huffing plate is heated and subjected to phase change, the heat is transferred to the fin set, heat dissipation and cooling are conducted through the fin set, the heat dissipation time of the radiator to the frequency conversion module is shortened, and the heat dissipation efficiency is improved. The overall temperature uniformity and heat dissipation efficiency