Phased array emitter liquid cooling system

A liquid cooling system of a phased array emitter comprises a water distribution box and a liquid cooling plate. The water distribution box is arranged in a vertical state, a liquid inlet cavity and a liquid outlet cavity which are mutually independent are formed in the water distribution box, a liquid inlet channel connected with the liquid inlet cavity and a liquid outlet channel connected with the liquid outlet cavity are formed in the rear side wall of the water distribution box, and a plurality of pairs of connecting holes communicated with the liquid inlet cavity and the liquid outlet cavity respectively are formed in the front side wall of the water distribution box in the vertical direction. The number of the liquid cooling plates is the same as the number of pairs of connecting holes, the liquid cooling plates are parallel to each other, one side of each liquid cooling plate is provided with a liquid inlet hole and a liquid outlet hole, in the same pair of connecting holes, the connecting hole commun