Scroll compressor provided with a fluid deflecting and dividing device

Abstract

The scroll compressor (2) includes an outer shell (4); a refrigerant suction inlet (7) formed in the outer shell (4) and configured to supply the scroll compressor (2) with refrigerant to be compressed; a compression unit (11) configured to compress refrigerant; a driving motor (21) configured to drive the compression unit (11) via a drive shaft (19); a fluid deflecting and dividing device (35) configured to divide a refrigerant suction flow entering the scroll compressor (2) through the refrigerant suction inlet (7) at least into a first flow (F1) and a second flow (F2). The fluid deflecting and dividing device (35) includes a first end (37) facing the refrigerant suction inlet (7) and a second end (38) which is closer to the compression unit (11) than the first end (37), the fluid deflecting and dividing device (35) being configured to guide the first flow (F1) towards the compression unit (11) and to guide the second flow (F2) towards the driving motor (21).

What is claimed is: 
     
         1 . A scroll compressor including:
 an outer shell,   a refrigerant suction inlet formed in the outer shell and configured to supply the scroll compressor with refrigerant to be compressed,   a compression unit configured to compress refrigerant,   a driving motor configured to drive the compression unit via a drive shaft,   a fluid deflecting and dividing device configured to divide a refrigerant suction flow entering the scroll compressor through the refrigerant suction inlet at least into a first flow (F 1 ) and a second flow (F 2 ),   
       wherein the fluid deflecting and dividing device includes a first end facing the refrigerant suction inlet and a second end which is closer to the compression unit than the first end, the fluid deflecting and dividing device being configured to guide the first flow (F 1 ) towards the compression unit and to guide the second flow (F 2 ) towards the driving motor. 
     
     
         2 . The scroll compressor according to  claim 1 , wherein the fluid deflecting and dividing device includes an intermediate portion located between the first and second ends, the intermediate portion including a bottom plate and a plurality of blades protruding from the bottom plate. 
     
     
         3 . The scroll compressor according to  claim 2 , wherein each of the plurality of blades extends substantially up to the second end of the fluid deflecting and dividing device. 
     
     
         4 . The scroll compressor according to  claim 2 , wherein the plurality of blades delimits diverging and upwardly extending flow channels. 
     
     
         5 . The scroll compressor according to  claim 2 , wherein the plurality of blades include a plurality of main blades and a plurality of intermediate blades, each intermediate blade extending between two adjacent main blades and having a length smaller than a length of each the two adjacent main blades. 
     
     
         6 . The scroll compressor according to  claim 5 , wherein each main blade extends substantially from the first end of the fluid deflecting and dividing device, and each intermediate blade is offset from the first end of the fluid deflecting and dividing device. 
     
     
         7 . The scroll compressor according to  claim 5 , wherein the plurality of main blades includes two outer main blades and several inner main blades located between the two outer main blades, each of the two outer main blades having a height higher than a height of each of the inner main blades. 
     
     
         8 . The scroll compressor according to  claim 2 , wherein the bottom plate includes a curved guiding portion extending substantially from the first end of the fluid deflecting and dividing device, the curved guiding portion being configured to guide the first flow (F 1 ) towards the second end of the fluid deflecting and dividing device. 
     
     
         9 . The scroll compressor according to  claim 1 , further including an inner shell surrounding the driving motor, the fluid deflecting and dividing device being secured to an outer surface of the inner shell. 
     
     
         10 . The scroll compressor according to  claim 9 , wherein the second end of the fluid deflecting and dividing device has a shape substantially complementary to the outer surface of the inner shell. 
     
     
         11 . The scroll compressor according to  claim 9 , wherein the inner shell is provided with a refrigerant inlet aperture facing the refrigerant suction inlet. 
     
     
         12 . The scroll compressor according to  claim 11 , wherein the refrigerant inlet aperture is partially covered by the fluid deflecting and dividing device. 
     
     
         13 . The scroll compressor according to  claim 9 , wherein the second end of the deflecting and dividing device extends over at least 120 degrees of a circumference of the inner shell. 
     
     
         14 . The scroll compressor according to  claim 1 , further including a support frame which bears at least partially the compression unit and which includes at least one refrigerant aperture, the fluid deflecting and dividing device being configured to guide the first flow (F 1 ) towards the compression unit via the at least one refrigerant aperture provided on the support frame. 
     
     
         15 . The scroll compressor according to  claim 1 , wherein the fluid deflecting and dividing device is manufactured by 3D-printing. 
     
     
         16 . The scroll compressor according to  claim 1 , wherein the first end of the fluid deflecting and dividing device is substantially located at a same height than a central portion of the refrigerant suction inlet. 
     
     
         17 . The scroll compressor according to  claim 1 , wherein a flow section of the refrigerant suction inlet includes a first flow section portion facing the fluid deflecting and dividing device, and a second flow section portion which is offset in an axial direction of the drive shaft from the fluid deflecting and dividing device. 
     
     
         18 . The scroll compressor according to  claim 3 , wherein the plurality of blades delimits diverging and upwardly extending flow channels. 
     
     
         19 . The scroll compressor according to  claim 3 , wherein the plurality of blades include a plurality of main blades and a plurality of intermediate blades, each intermediate blade extending between two adjacent main blades and having a length smaller than a length of each the two adjacent main blades. 
     
     
         20 . The scroll compressor according to  claim 4 , wherein the plurality of blades include a plurality of main blades and a plurality of intermediate blades, each intermediate blade extending between two adjacent main blades and having a length smaller than a length of each the two adjacent main blades.