Novel heat exchanger

The utility model discloses a novel heat exchanger which comprises a first capillary tube set and a second capillary tube set, the first capillary tube set is arranged on the left side of a unit, the first capillary tube set comprises a first upper tube set and a first lower tube set, the second capillary tube set is arranged on the right side of the unit, and the second capillary tube set comprises a second upper tube set and a second lower tube set. A first circulation loop is defined by the first upper pipe set and the second upper pipe set, and a second circulation loop is defined by the first lower pipe set and the second lower pipe set. In combination with an air duct structure of a unit, a flow path of an original heat exchanger is optimized from a left-right independent design to an up-down shunting design, so that a refrigerant is distributed more uniformly, and the heat exchange efficiency is improved; the heat exchanger only adopts capillary tubes of two specifications, so that the research and dev