A method for economically operating the electrically heated air flow in a domestic clothes drying machine has a heated bimetallic switch in the air stream in series with the primary heating elements

摘要

An electric motor (112) driving a fan (200) in the air flow duct of a clothes drying machine has an electrical supply (110) and a second electrical supply (120) energises an arrangement of heating elements (122) in series with a main switch (124) and the switching element (116b) of a bimetal unit having a heat source (116a) sensing the air flow temperature.