This invention discloses a
siphon heat pipe radiator for an outdoor unit of an air conditioner, relating to the field of energy-saving
air conditioning. It includes an
evaporator and a condenser connected together. The
evaporator is mounted on the outdoor unit of the air conditioner. The condenser includes a manifold connected to the outlet of the condenser. A first partition plate is arranged inside the manifold along a first direction and is connected to the
evaporator. The first partition plate divides the manifold into an upper chamber and a lower chamber, which are sequentially distributed along a second direction. A connecting area is formed between the side of the first partition plate away from the evaporator and the side wall of the manifold, connecting the upper and lower chambers. Through holes are formed on the first partition plate. A proximal region, a middle region, and a distal region are formed on the first partition plate along the first direction, with the density of through holes corresponding to the proximal, middle, and distal regions increasing sequentially. This invention solves the problems of gas-liquid entrainment and uneven vapor distribution.