Drum washing machine and control method

Abstract

A drum washing machine comprises a tank body, an outer drum and an inner drum, wherein the inner drum comprises a hole area provided with holes and a hole-free area which is closed; a sealing assembly is arranged between the inner drum and the outer drum on at least one side of the hole area; and a sealed region is defined by the sealing assembly, the hole-free area of the inner drum and the outer drum. Effective water intake and drainage is achieved through the hole area of the inner drum of the washing machine, and flushing is implemented conveniently so as to avoid residues; the hole-free area cooperates with the sealing assembly to form the sealed region between the inner drum and the outer drum, so as to effectively prevent crossed flowing of washing sewage and to avoid dirt accumulation between the inner drum and the outer drum.

1 . A drum washing machine, comprising a housing, an outer drum and an inner drum, wherein
 the inner drum comprises a hole area provided with holes and a hole-free area;   a sealing assembly is arranged between the inner drum and the outer drum on at least one side of the hole area;   and a sealed region is defined by the sealing assembly, the hole-free area of the inner drum and the outer drum.   
     
     
         2 . The drum washing machine according to  claim 1 , wherein the sealing assembly is fixedly arranged on an inner wall of the outer drum and is in a dynamic seal with an outer wall of the inner drum. 
     
     
         3 . The drum washing machine according to  claim 1  or  2 , wherein a water intake and drainage space is defined by the sealing assembly, the hole area of the inner drum and the outer drum; and
 the water intake and drainage space is in communication with an interior of the inner drum. 
 
     
     
         4 . The drum washing machine according to  claim 3 , wherein a water intake pipeline and a drainage pipeline are arranged between the housing and the outer drum; and
 the water intake pipeline and the drainage pipeline are communicated with the water intake and drainage space.   
     
     
         5 . The drum washing machine according to  claim 4 , wherein a water outlet of the water intake pipeline is arranged on a wall of the outer drum defining the water intake and drainage space and corresponds to the hole area at an upper part of the inner drum; and
 a water inlet of the drainage pipeline is arranged on the wall of the outer drum defining the water intake and drainage space and corresponds to the hole area at a lower part of the inner drum.   
     
     
         6 . The drum washing machine according to  claim 1 , wherein the hole area of the inner drum is arranged at a side close to an laundry input port;
 the sealing assembly is arranged at a side, away from the laundry input port, of the hole area; and   the sealed region is defined by the sealing assembly, the hole-free area of the inner drum and the outer drum.   
     
     
         7 . The drum washing machine according to  claim 6 , wherein a water intake and drainage space is defined by the sealing assembly, a sealing window pad of an observing window of the washing machine, the hole area of the inner drum and the outer drum; and
 the water intake pipeline and the drainage pipeline of the washing machine are communicated with the water intake and drainage space.   
     
     
         8 . The drum washing machine according to  claim 1 , wherein a guiding structure for guiding water from the hole-free area to the hole area, is arranged on an inner surface of the hole-free area of the inner drum. 
     
     
         9 . A control method of the drum washing machine according to  claim 1 , at least comprising a washing process, a rinsing process and a dewatering process, wherein
 during the washing process or the rinsing process of the washing machine, water supplied enters the hole-free area from the hole area of the inner drum; and   during a drainage or the dewatering process of the washing machine, water enters the hole area from the hole-free area.   
     
     
         10 . The control method according to  claim 9 , wherein after the washing process or rinsing process, water is supplied by the washing machine to flush the water intake and drainage space to thoroughly flush away sewage. 
     
     
         11 . The drum washing machine according to  claim 2 , wherein a water intake and drainage space is defined by the sealing assembly, the hole area of the inner drum and the outer drum; and
 the water intake and drainage space is in communication with an interior of the inner drum.   
     
     
         12 . The drum washing machine according to  claim 2 , wherein a guiding structure for guiding water from the hole-free area to the hole area, is arranged on an inner surface of the hole-free area of the inner drum. 
     
     
         13 . The drum washing machine according to  claim 3 , wherein a guiding structure for guiding water from the hole-free area to the hole area, is arranged on an inner surface of the hole-free area of the inner drum. 
     
     
         14 . The drum washing machine according to  claim 5 , wherein a guiding structure for guiding water from the hole-free area to the hole area, is arranged on an inner surface of the hole-free area of the inner drum.