Washing machine inner drum and washing machine having same

Abstract

The invention relates to washing machines, and more particularly, to a washing machine inner drum and a washing machine having the same. The inner drum has a drum wall provided with a plurality of pressed structures and a plurality of dehydration holes. The pressed structures includes protrusions pointing to an inside of the inner drum. A bottom of each protrusion is of a parallelogram, and the protrusions are arranged in rows and columns; gaps between protrusions in adjacent columns and adjacent rows form straight flow channels for water flows to pass, and the dehydration holes are arranged in the straight flow channels.

1 . A washing machine inner drum, comprising:
 a drum wall being provided with a plurality of pressed structures and a plurality of dehydration holes, wherein the pressed structures are formed by protrusions directed to the inside of the inner drum, a bottom of each protrusion is of a first parallelogram, and the protrusions are arranged in rows and columns, and gaps between protrusions in adjacent columns and in adjacent rows form straight flow channels for a water flow to pass, and the dehydration holes are provided on the straight flow channels.   
     
     
         2 . The washing machine inner drum according to  claim 1 , wherein the bottom of each protrusion is formed by the first parallelogram of a same shape, and the first parallelogram is a rectangle, a square, a rhombus, or a parallelogram geometry whose adjacent sides are not equal. 
     
     
         3 . The washing machine inner drum according to  claim 2 , wherein a center line of protrusions in a same column perpendicularly intersects with a center line of protrusions in a same row. 
     
     
         4 . The washing machine inner drum according to  claim 1 , wherein a distance between adjacent protrusions in a same column is same as that between adjacent protrusions in a same row. 
     
     
         5 . The washing machine inner drum according to  claim 1 , wherein each protrusion is formed by a top surface and a transitional surface, wherein the top surface and the transitional surface have different curvatures, such that each connecting line from the protrusion center to any point on the bottom of the protrusion along an outer wall of the protrusion comprises two arcs with different curvatures. 
     
     
         6 . The washing machine inner drum according to  claim 1 , wherein each protrusion is formed by a top surface and a transitional surface, wherein intersecting lines of the top surface and the transitional surface form a second parallelogram that is same as the first parallelogram in geometry and different from the first parallelogram in size, wherein a length and a width of the second parallelogram are less than a length and a width of the first parallelogram, respectively. 
     
     
         7 . The washing machine inner drum according to  claim 6 , wherein adjacent side edges of the first parallelogram at the bottom of the protrusion and the second parallelogram at the intersecting lines of the top and transitional surfaces of the protrusion are transitionally connected by through rounded corners. 
     
     
         8 . The washing machine inner drum according to  claim 7 , wherein a side edge of the first and second parallelograms gradually bends outwards from two ends to the middle of the side edge. 
     
     
         9 . The washing machine inner drum according to  claim 1 , wherein the straight flow channels form a flow channel network formed by crossing a plurality of transverse flow channels disposed in parallel over a plurality of longitudinal flow channels disposed in parallel, and the dehydration holes are respectively provided at crossings of the transverse flow channels and the longitudinal flow channels. 
     
     
         10 . A washing machine, comprising the inner drum according to  claim 1  disposed in the washing machine. 
     
     
         11 . The washing machine inner drum according to  claim 1 , wherein each straight longitudinal flow channel is formed by a gap between protrusions in two adjacent columns, and each straight transverse flow channel is formed by a gap between protrusions in two adjacent rows, wherein the straight transverse flow channel is perpendicular to the longitudinal flow channel, and at least one dehydration hole is provided at the crossing of the transverse flow channel and the longitudinal flow channel.