Linear compressor

Abstract

The present invention refers to a linear compressor based on resonant oscillating mechanism, which comprises an oscillating arrangement essentially formed by at least one linear motor ( 2 ) defined by a movable portion ( 22 ) and a fixed portion ( 21 ), at least a resonance spring ( 3 ), at least one piston ( 4 ) and at least one balancing body ( 5 ), wherein the movable portion ( 22 ) of the linear motor ( 2 ) is cooperatively associated with the piston ( 4 ), defining a piston-motor assembly. The piston-motor assembly is operatively associated to the end ( 31 ) of the resonant spring ( 3 ) and at least one balancing body ( 5 ) is functionally associated with the end ( 32 ) of the resonant spring ( 3 ). This construction allows the attenuation of the vibration that the resonant oscillating mechanism applies to the compressor housing through the cancellation of the forces generated by the motor and the forces generated by the compression of gas in the cylinder.

1 . Linear compressor, comprising a oscillating arrangement fundamentally formed by at least one linear motor ( 2 ) defined by a movable portion ( 22 ) and a fixed portion ( 21 ), at least one resonant spring ( 3 ) and at least one piston ( 4 ); the compressor being especially CHARACTERIZED in that:
 the oscillating arrangement comprises at least one balancing body ( 5 );   the movable portion ( 22 ) of the linear motor ( 2 ) is cooperatively associated with the piston ( 4 ) defining a piston-motor assembly;   the piston-motor assembly is functionally associated with the end ( 31 ) of the resonant spring ( 3 ); and   at least one balancing body ( 5 ) is functionally associated with the end ( 32 ) of the resonant spring ( 3 ).   
     
     
         2 . Linear compressor according to  claim 1 , CHARACTERIZED in that the balancing body ( 5 ) is capable of having an oscillatory movement. 
     
     
         3 . Linear compressor according to  claim 2 , CHARACTERIZED in that the balancing body ( 5 ) is capable of performing a resonant oscillating movement synchronized with resonant oscillatory movement of the piston-motor assembly. 
     
     
         4 . Linear compressor according to  claim 2 , CHARACTERIZED in that the balancing body ( 5 ) is capable of performing a resonant oscillating movement synchronously opposite to the resonant oscillatory movement of the piston-motor assembly.