The invention relates to an air conditioning room internal machine frame structure, which provides an upper wind inlet grid. The invention designs the upper wind inlet grid into movable structure, which can be detached. The upper wind inlet grid and the indoor machine frame are connected via clamping; the back edge of said grid has at least two plug card projected; the front ends of left and right edges have two buckles; the back of wind inlet grid has at least two slots relative to the plug cards; said plug cards can be inserted into slots; the fronts of two sides of grid have two jacks to be inserted with the buckles. The invention can easily detach the upper wind inlet grid from the frame, therefore, the vaporizer can be cleaned directly. |