| 摘要 |
<p>A linear compressor includes a shell (100) including a refrigerant inlet (101), an outer stator (210) provided in the shell and including a coil (215), an inner stator (220) disposed to be spaced apart from the outer stator, a permanent magnet (230) disposed to be movable between the outer stator and the inner stator, a cylinder (120) including a compression space (P) in which a refrigerant sucked through refrigerant inlet is compressed, a piston (130) coupled to the permanent magnet so as to be reciprocated in the cylinder, a first surface treatment part (310) provided at the piston so as to have a first hardness value, and a second surface treatment part (320) provide at the cylinder so as to have a second hardness value so that a difference value between the first and second hardness values is more than a preset value.</p> |
