A deflector for an accumulator for an air conditioning system acts as a barrier to substantially prevent incoming liquid from entering a conduit which is primarily for gas. Fluid entering the accumulator comprises gas and liquid. The deflector also assists with the separation of gas from liquid, with reduced turbulence, to decrease the likelihood of liquid becoming re-entrained within the gas. An initial contact surface of the deflector receives the incoming fluid. The initial contact surface is substantially convex, so that liquid reflecting off the surface will be travel in a direction away (or different) from the flow of incoming fluid. The initial contact surface is also angled to direct liquid reflecting off it (or flowing down it) downward and outward.