Concave-convex plate type reflecting screen heating chamber

The utility model belongs to the technical field of vacuum furnaces, and provides a concave-convex plate type reflecting screen heating chamber which comprises a vacuum shell, a heating chamber frame, a reflecting screen, a heater and a protruding part. The heating chamber frame is arranged in the vacuum shell, the reflecting screen is arranged in the heating chamber frame, the heaters are sequentially arranged in the reflecting screen from top to bottom at intervals, a gap is reserved between every two heaters, a gap is reserved between each heater and the reflecting screen, and the reflecting screen is arranged in the heating chamber frame. The reflecting screen protrudes outwards to form a plurality of protruding parts. The reflecting screen protrudes outwards to form the protruding parts, diffuse radiation can be formed in the vacuum furnace at the high temperature, the temperature uniformity is improved, cooling gas forms roll flow along the protruding parts during cooling, the roll flow gas and direct f