Abstract

The present disclosure relates to an autonomous clutch-less drive mechanism for a vertical axis washing machine. The clutch-less drive mechanism comprising a first motor adapted to rotate a perforated drum of the vertical axis washing machine in a plurality of operating modes; and a second motor adapted to rotate a pulsator of the vertical axis washing machine independent of the first motor in the plurality of operating modes; wherein the first motor and the second motor are arranged in the vertical axis washing machine in one of a first operating configuration and a second operating configuration such that the first motor is located in line to the second motor in the first operating configuration and the first motor is located perpendicular to the second motor in the second operating configuration.

IPC Classes  ?

• D06F 37/30 - Driving arrangements
• D06F 37/40 - Driving arrangements for driving the receptacle and an agitator or impeller, e.g. alternatively
• D06F 33/00 - Control of operations performed in washing machines or washer-dryers
• D06F 34/00 - Details of control systems for washing machines, washer-dryers or laundry dryers
• A47L 9/22 - Mountings for motor fan assemblies

Abstract

The present invention discloses a system and a method for positive balancing of rotors such as rotors in electrical motors. The system includes a shaft 202, permanent magnets 216 and silicon steel 218 being molded with plastic 214 and assembled with the shaft 202, the plastic mold 214 and silicon steel 218 defining an operative first outer surface 212a and an operative second outer surface 212b, one or more recesses 208 configured on the operative first 212a and second outer surfaces 212b at predetermined angular locations; and the one or more recesses 208 configured to receive a predetermined amount of a mass. The positive balancing is done using a first fixture 300 and a second fixture.

IPC Classes  ?

• G01M 1/22 - Determining imbalance by oscillating or rotating the body to be tested and converting vibrations due to imbalance into electric variables
• G01M 1/32 - Compensating imbalance by adding material to the body to be tested, e.g. by correcting-weights
• H02K 7/04 - Balancing means