To prevent the overheating state of heating means and to improve safety in a drum washing machine provided with a circulation pump.
The drum washing machine includes: a water tub 1 which stores washing liquid; a rotary drum 2 which is pivoted inside the water tub 1, and has many small holes 3 formed in the sidewall surface; a motor (driving device) 6 which rotationally drives the rotary drum 2; a heater (heating means) 16 which is provided on the bottom part of the water tub 1 and heats the washing liquid; a circulation path 21 which circulates the washing liquid inside the rotary drum 2 from the bottom part of the water tub 1; a circulation pump 19 provided in the circulation path 21; a water discharge hose (water discharge path) 18 which discharges the washing liquid inside the water tub 1; and a water discharge pump 17 provided in the water discharge path 18. The lowest part of the opening surface of a circulation path entrance portion 20 which is an entrance to the circulation path 21 is disposed at a position higher than the top surface of the heating surface of the heater 16. Thus, the overheating state of the heating means is prevented, and the safety is improved.
GAMO TAKESHI
KAWAI MASAHIRO
Daisuke Nagano
Kentaro Fujii