Panel open/close device for wall-hung indoor unit of air conditioner

The utility model relates to an air conditioner indoor unit panel opening and closing device, which comprises an upper panel, a lower panel, a middle frame and a driving device. When the utility model is not opened, the upper panel is in a closed status and the air conditioner hanging unit keeps a big plane or mirror plane appearance. When the utility model is opened, a motor drives a driving gear to rotate clockwise and simultaneously drives a driven gear to rotate counter-clockwise; then driven by a gear linking and positioned by a driving rotating shaft, the upper panel makes opening movement with the driven gear; the lower panel is fixed on the middle frame; after a gear driving device drives the upper panel to open, a front air inlet between the upper panel and the lower panel is consequently opened, thereby increasing the air input of the indoor hanging unit.