Sealed refrigerant compressor and refrigeration device including same

Abstract

A sealed refrigerant compressor (100) includes: a compression element (107) accommodated in a sealed container (101) and configured to compress a refrigerant; and an electric element (106) configured to drive the compression element (107). Lubricating oil (103) is stored in the sealed container (101). A resin member is included as a member accommodated in the sealed container (101). The amount of oligomer contained in the resin member is 2.5 wt. % or less of an entire weight of the resin member. Kinetic viscosity of the lubricating oil 103 at 40° C. falls within a range of 0.1 to 5.1 mm2/s. A flash point of the lubricating oil 103 is 110° C. or more.

1 . A sealed refrigerant compressor comprising:
 a compression element accommodated in a sealed container and configured to compress a refrigerant; and   an electric element configured to drive the compression element, wherein:   lubricating oil is stored in the sealed container;   a resin member is included as a member accommodated in the sealed container;   an amount of oligomer contained in the resin member is 2.5 wt. % or less of an entire weight of the resin member;   kinetic viscosity of the lubricating oil at 40° C. falls within a range of 0.1 to 5.1 mm 2 /s; and   a flash point of the lubricating oil is 110° C. or more.   
     
     
         2 . The sealed refrigerant compressor according to  claim 1 , wherein the amount of oligomer falls within a range of 0.01 to 1 wt. % of the entire weight of the resin member. 
     
     
         3 . The sealed refrigerant compressor according to  claim 1 , wherein the oligomer is dimer, trimer, or tetramer or contains at least one of the dimer, the trimer, and the tetramer. 
     
     
         4 . The sealed refrigerant compressor according to  claim 1 , wherein at least a stabilizing agent is added as an additive to the lubricating oil, and a content of the stabilizing agent added falls within a range of 0.1 to 10 wt. % of an entire amount of the lubricating oil. 
     
     
         5 . The sealed refrigerant compressor according to  claim 4 , wherein the stabilizing agent is at least one of an acid capturing agent and fullerene. 
     
     
         6 . The sealed refrigerant compressor according to  claim 5 , wherein when the stabilizing agent is the fullerene, the content of the fullerene falls within a range of 0.1 to 5 wt. % of the entire amount of the lubricating oil. 
     
     
         7 . The sealed refrigerant compressor according to  claim 1 , wherein density of the resin member falls within a range of 1.2 to 3.0 g/cm 3 . 
     
     
         8 . A refrigeration device comprising the sealed refrigerant compressor according to  claim 1 .