Patent ID: 8616029
Filing Date: 2013-12-31
Classification: A47L,D06F,Y10T

Abstract:
1. A washing machine with a direct drive system comprising: a tub, a drum rotatably mounted inside the tub, a shaft connected to the drum at a first end for transmission of a driving force of a direct drive motor, a coaxial support connected to a rear portion of the tub and having a first seat, a first bearing positioned in the first seat, the first bearing supporting a second end of the shaft opposite the drum, a stator secured to the coaxial support and having a plurality of magnetic cores, a rotor including permanent magnets and connected to the shaft, and a second bearing for supporting the shaft between the second end and the first end, wherein the tub is made of polymeric material in which a second seat for said second bearing is co-molded, wherein the rotor includes (i) a base connected to the shaft between the first bearing and the second bearing, and (ii) an arm positioned between the stator and tub that extends outwardly from the base, wherein the first bearing and the second bearing support an external surface of the shaft and the base extends along the external surface of the shaft such that a first end of the base is directly adjacent to the first bearing and a second end of the base is directly adjacent to the second bearing.