Hermetic compressor

Abstract

A hermetic compressor includes: a crank shaft rotated by using an axial direction as a rotational axis; a stator rotating the crank shaft; a first bearing penetrated by the crank shaft and rotatably coupled to one side of the crank shaft based on the stator to support one side of the crank shaft when the crank shaft is rotated; a support part having one side provided at the stator and the other side disposed to be adjacent to the other side of the crank shaft, based on the stator; and a second bearing coupled to the other side of the support part and supporting the other side of the crank shaft.

1 . A hermetic compressor comprising:
 a crank shaft rotated by using an axial direction as a rotational axis;   a stator rotating the crank shaft;   a first bearing penetrated by the crank shaft and rotatably coupled to one side of the crank shaft based on the stator;   a support part having one side provided at the stator and the other side disposed to be adjacent to the other side of the crank shaft, based on the stator; and   a second bearing coupled to the support part and supporting the other side of the crank shaft.   
     
     
         2 . The hermetic compressor of  claim 1 , further comprising:
 a frame in which the crank shaft penetrates, wherein the first bearing is provided between the frame and the crank shaft.   
     
     
         3 . The hermetic compressor of  claim 2 , wherein the first bearing support one side of the crank shaft when the crank shaft is rotated. 
     
     
         4 . The hermetic compressor of  claim 1 , wherein the second bearing supports the other side of the crank shaft when the crank shaft is rotated. 
     
     
         5 . The hermetic compressor of  claim 1 , wherein the support part fixes the second bearing to the stator. 
     
     
         6 . The hermetic compressor of  claim 1 , wherein one side of the support part is fixed to the stator by a fastening unit penetrating one side of the support part. 
     
     
         7 . The hermetic compressor of  claim 1 , wherein the support part is integrally formed with the stator. 
     
     
         8 . The hermetic compressor of  claim 1 , wherein a moment center of the crank shaft is positioned at a support portion of the first bearing supporting the crank shaft in an axial direction of the crank shaft, and a compression part for compressing a refrigerant upon receiving rotary force of the crank shaft is provided at one end portion of the crank shaft based on the moment center of the crank shaft. 
     
     
         9 . The hermetic compressor of  claim 8 , wherein the second bearing is disposed at the other side based on the moment center of the crank shaft. 
     
     
         10 . The hermetic compressor of  claim 1 , wherein the second bearing is penetrated by the crank shaft. 
     
     
         11 . The hermetic compressor of  claim 1 , wherein the second bearing is a rolling bearing. 
     
     
         12 . The hermetic compressor of  claim 1 , wherein the support part supports an outer side of the second bearing. 
     
     
         13 . The hermetic compressor of  claim 1 , wherein the second bearing is provided at the other side of the support part. 
     
     
         14 . The hermetic compressor of  claim 1 , wherein the second bearing is press-fit to a space formed by the other side of the support part and the other side of the crank shaft. 
     
     
         15 . A hermetic compressor comprising:
 a crank shaft rotated by using an axial direction as a rotational axis;   a stator rotating the crank shaft;   a first bearing penetrated by the crank shaft and supporting one side of the crank shaft when the crank shaft is rotated;   a second bearing penetrated by the crank shaft and supporting the other side of the crank shaft when the crank shaft is rotated; and   a support part provided at the stator to fix the second bearing.   
     
     
         16 . The hermetic compressor of  claim 15 , wherein the first bearing is rotatably coupled to one side of the crank shaft based on the stator. 
     
     
         17 . The hermetic compressor of  claim 16 , further comprising:
 a frame in which the crank shaft penetrates, wherein the first bearing is provided between the frame and the crank shaft.   
     
     
         18 . The hermetic compressor of  claim 16 , wherein the support part having one side provided at the stator and the other side disposed to be adjacent to the other side of the crank shaft based on the stator. 
     
     
         19 . The hermetic compressor of  claim 18 , wherein the second bearing is penetrated by the crank shaft and has one side coupled to the other side of the support part, so as to be rotatably coupled to the other side of the crank shaft. 
     
     
         20 . The hermetic compressor of  claim 18 , wherein one side of the support part is fixed to the stator by a fastening unit penetrating one side of the support part.