Inner drum for washing machine and washing machine

Abstract

A washing machine inner drum and a washing machine. The inner drum includes a hollow cylinder-shaped inner drum body, at least one counterweight body being arranged fixedly on the inner drum body; when the inner drum body rotates, the counterweight body rotates therewith, and the centre of mass of the counterweight body is positioned on the axis of the inner drum. The washing machine includes a shell and an outer drum, the present washing machine inner drum being arranged within the outer drum. The washing machine inner drum has good damping effects, and when vibration occurs, functions quickly and reduces the vibration.

1 . A washing machine inner drum, comprising a hollow cylinder-shaped inner drum body, wherein at least one counterweight body is disposed fixedly to the inner drum body; when the inner drum body rotates, the counterweight body is capable of rotating with the inner drum body; and a center of mass of the counterweight body is positioned in an axis of the inner drum body. 
     
     
         2 . The washing machine inner drum of  claim 1 , wherein the counterweight body is disposed fixedly on at least one of an outside edge and an inside edge of the inner drum body. 
     
     
         3 . The washing machine inner drum of  claim 1 , wherein each counterweight body comprises at least two counterweight blocks, and a total center of mass of the at least two counterweight blocks is positioned in the axis. 
     
     
         4 . The washing machine inner drum of  claim 1 , wherein the counterweight body is made from at least one of cement, concrete, cast iron and lead. 
     
     
         5 . The washing machine inner drum of  claim 1 , wherein a guard shell is disposed at an outer side of the counterweight body. 
     
     
         6 . The washing machine inner drum of  claim 5 , wherein the guard shell comprises at least two cavities that are arranged radially outwardly. 
     
     
         7 . The washing machine inner drum of  claim 5 , wherein the guard shell comprises at least two cavities, wherein the counterweight body is arranged inside at least one cavity, and a mixture including steel balls and silicone oil is filled inside at least one other cavity. 
     
     
         8 . The washing machine inner drum of  claim 5 , wherein the guard shell comprises at least two cavities, wherein the counterweight body is arranged inside at least one cavity, and liquid is filled inside at least one other cavity. 
     
     
         9 . The washing machine inner drum of  claim 1 , wherein a front-end flange is disposed at an opening of the inner drum body, and the counterweight body is fixedly disposed at an outer peripheral face of the front-end flange. 
     
     
         10 . A washing machine comprising a shell and an outer drum, wherein the outer drum is provided with the washing machine inner drum according to  claim 1 . 
     
     
         11 . The washing machine inner drum of  claim 1 , wherein each counterweight body is an annular solid counterweight ring, and a center of the counterweight ring is positioned in the axis. 
     
     
         12 . The washing machine inner drum of  claim 5 , wherein the guard shell comprises at least two cavities that are arranged sided by side axially with respect to the inner drum body.