Warm air hand dryer - incorporates motor with fan electric heater, and sensor, with rotationally symmetrical interior preventing air escape

摘要

The warm air hand dryer contains a motor with a fan (1) on the back of the gadget which conveys air round a guide piece (2) to the outer sides. Behind the electric heater (3) is a temp. sensor (4) which regulates the air temp. The air passage is rotationally symmetrical, so that the air is conveyed in a widening section so that there is slight excess pressure (7) at the inlet for the hands. This prevents any air from passing outwards through the inlet. Air is brought in from outside in the under-pressure area (9) near the fan axis pref. through a filter or disinfectant system (13) (14). The air circulation can be increased around the hands by turbulence producer (6).