| 摘要 |
PURPOSE: A drum washing machine having a water tank for preheating is provided to reduce the whole weight of a washing machine, and to reduce the whole washing time by reducing the dehydrating time. CONSTITUTION: The drum washing machine(1) comprises: a washing tub(7) arranged toward width; a sub-water tank(51) installed in the upper part of a tank(5) installed to surround the outer circumference of the washing tub(7); a sub-water supply pipe(53) combined with a water supply resource in the sub-water tank(51); an overflow pipe(55) combined with the upper part of the sub-water tank(51); a drainage pipe(57) combined with the tank(5); a sub-heating heater(59) to preheat water supplied to the sub-water tank(51). The dehydrating efficiency is improved to be able to use the water of high temperature at dehydrating by storing the water for dehydrating in the sub-water tank(51), and by preheating by the sub-heating heater(59), and the vibrating effect of the washing machine is prevented by preventing the vibration of the tank(5) using the weight of the dehydrating the re-supplied water at a dehydration at the same time. |
