Scroll compressor having function of preventing outflow of lubrication oil

Abstract

A scroll compressor having a function of preventing an outflow of lubrication oil comprises: a lubrication oil separating net installed at an upper surface of a fixed scroll; a lubrication oil separating plate installed at an upper portion of the lubrication oil separating net; and a refrigerant gas guide member installed outside the lubrication oil separating plate at a certain distance. Accordingly, lubrication oil is effectively prevented from flowing out of the casing through the discharge pipe together with a refrigerant gas when a refrigerant gas is discharged. Thus, the lubrication oil always remains in the casing, thereby reducing abrasion of each component. Thus, performance of each component can be improved, and thus compression performance of the compressor can be improved too.

1 . A scroll compressor having a function of preventing an outflow of lubrication oil comprising: 
 a casing forming a receiving space therein;    a fixed scroll having a wrap of an involute shape and a discharge hole for discharging a compressed refrigerant gas, and disposed inside the casing;    an orbiting scroll having a wrap of an involute shape and orbiting relative to the fixed scroll by being interlocked with the fixed scroll; and    a lubrication oil separating part disposed around the discharge hole, for separating lubrication oil from a refrigerant gas discharged through the discharge hole.    
   
   
       2 . The scroll compressor of  claim 1 , wherein the lubrication oil separating part comprises: 
 a lubrication oil separating net having a netlike body and installed at an upper surface of the fixed scroll at which the discharge hole is formed; and    a lubrication oil separating plate installed at an upper portion of the lubrication oil separating net.    
   
   
       3 . The scroll compressor of  claim 2 , wherein a refrigerant gas guide member is installed outside the lubrication oil separating plate at a certain distance.  
   
   
       4 . The scroll compressor of  claim 1 , wherein the lubrication oil separating part comprises: 
 a lubrication oil separating net having a mesh structure and disposed to encompass the discharge hole.    
   
   
       5 . The scroll compressor of  claim 2 , wherein an inclined surface is formed at an upper surface of the fixed scroll inside the lubrication oil separating net in order to gather the lubrication oil separated by the lubrication oil separating net.  
   
   
       6 . The scroll compressor of  claim 5 , wherein a lubrication oil return path is penetratingly formed at the fixed scroll so as to guide the lubrication oil flowing along the inclined surface.  
   
   
       7 . The scroll compressor of  claim 6 , wherein the lubrication oil return path communicates with an oil discharge hole formed at a thrust bearing of an upper frame.  
   
   
       8 . The scroll compressor of  claim 7 , wherein a lubrication oil guide is installed under the upper frame so as to guide the lubrication oil introduced from the lubrication oil return path to a lower portion of the casing.  
   
   
       9 . A scroll compressor having a function of preventing an outflow of lubrication oil comprising: 
 a lubrication oil separating net installed at an upper surface of a fixed scroll;    a lubrication oil separating plate installed at an upper portion of the lubrication oil separating net; and    a refrigerant gas guide member installed outside the lubrication oil separating plate at a certain distance.    
   
   
       10 . The scroll compressor of  claim 9 , wherein an inclined surface is formed at an upper surface of the fixed scroll inside the lubrication oil separating net in order to gather the lubrication oil separated by the lubrication oil separating net.  
   
   
       11 . The scroll compressor of  claim 10 , wherein a lubrication oil return path is penetratingly formed at the fixed scroll so as to guide the lubrication oil flowing along the inclined surface.  
   
   
       12 . The scroll compressor of  claim 11 , wherein the lubrication oil return path communicates with an oil discharge hole formed at a thrust bearing of an upper frame.  
   
   
       13 . The scroll compressor of  claim 12 , wherein a lubrication oil guide is formed under the upper frame so as to guide the lubrication oil introduced from the lubrication oil return path to a lower portion of the casing.