Hermetic compressor

A hermetic compressor comprising:

• a compression unit for compressing a refrigerant;
• a motor for providing a compression driving force of the refrigerant;
• a frame on which the compression unit and the motor are installed;
• a rotation shaft for transferring the driving force of the motor to the compression unit;
• a journal bearing fixed to the frame such that the rotation shaft passes therethrough to rotatably support the rotation shaft;
• and
• a bearing member installed around the rotation shaft between the motor and the journal bearing,
• wherein the motor includes a stator fixed to an outside of the journal bearing, and a rotor having a body disposed outside the stator and rotatably installed such that the rotor rotates together with the rotation shaft by electromagnetic interaction with the stator,
• wherein the stator includes a stator core detachably coupled to the journal bearing,
• wherein the stator core is prevented from rotating relative to the journal bearing,
• wherein a through hole is formed at a center of the stator core and the stator core is coupled with the journal bearing in an axial direction of the journal bearing,
• wherein the through hole includes a small-diameter section formed at a lower portion of the through hole to support an outer surface of the journal bearing and a large-diameter section formed at an upper portion of the small-diameter section,
• wherein an inner diameter of the large-diameter section is larger than an inner diameter of the small-diameter section,
• wherein an upper end of the journal bearing passes through the small-diameter section,
• wherein the stator core is prevented from moving in an axial direction by a coupling point within a space created by the large-diameter section,
• wherein the stator core is formed by stacking a plurality of electric steel plates, and
• wherein the plurality of electric steel plates are stacked at the small-diameter section and the large-diameter section.