Thermal Deformation Management In A Scroll Plate Of A Scroll

Abstract

A scroll plate for use in a scroll compressor is described. The scroll plate comprises a base plate having a first side and a second side, wherein the second side opposes the first side, and a spiral wrap formed on the first side of the base plate, wherein the base plate comprises one or more recesses and wherein an insulating material is located in at least one of the one or more recesses. Further, a scroll compressor having a corresponding scroll plate is described.

1 . A scroll plate for use in a scroll compressor, the scroll plate comprising:
 a base plate having a first side and a second side, wherein the second side opposes the first side; and   a spiral wrap formed on the first side of the base plate;   wherein the base plate comprises one or more recesses and wherein an insulating material is located in at least one of the one or more recesses.   
     
     
         2 . The scroll plate according to  claim 1 , wherein at least one of the one or more recesses is located at a surface of the second side of the base plate. 
     
     
         3 . The scroll plate according to  claim 1 , wherein the second side of the base plate further comprises a reception configured to receive a portion of a crankshaft of the compressor. 
     
     
         4 . The scroll plate according to  claim 3 , wherein at least one recess of the one or more recesses is located within the reception. 
     
     
         5 . The scroll plate according to  claim 3 , wherein at least one recess of the one or more recesses is located outside of the reception. 
     
     
         6 . The scroll plate according to  claim 5 , wherein the at least one recess, which is located outside of the reception, forms a ring around the reception. 
     
     
         7 . The scroll plate according to  claim 6 , wherein at least two recesses form concentric rings around the reception. 
     
     
         8 . The scroll plate according to  claim 1 , wherein at least one recess of the one or more recesses is located beneath the surface of the second side of the base plate. 
     
     
         9 . The scroll plate according to  claim 8 , wherein the at least one recess beneath the surface of the second side is formed as a sealed chamber within the base plate. 
     
     
         10 . The scroll plate according to  claim 9 , wherein the insulating material located in the recess beneath the surface of the second side is a fluid. 
     
     
         11 . The scroll plate according to  claim 1 , wherein the insulating material forms a layer located between the first side and the second side of the base plate. 
     
     
         12 . The scroll plate according to  claim 1 , wherein the insulating material is a non-metal material having a low thermal conductivity. 
     
     
         13 . A scroll compressor comprising a scroll plate according to  claim 1 . 
     
     
         14 . The scroll compressor according to  claim 13 , wherein the scroll plate is an orbiting scroll plate and wherein the one or more recesses of the base plate of the orbiting scroll plate are referred to as one or more first recesses, the scroll compressor further comprising a second scroll plate, wherein the second scroll plate comprises:
 a second base plate having a frontside and a backside, wherein the backside opposes the frontside;   a second spiral wrap formed at the frontside of the second base plate, wherein the second spiral wrap is adapted to interact with the spiral wrap of the orbiting scroll plate to form at least one compression chamber;   an injection channel formed within the second base plate, the injection channel providing an injection path for injection of fluid into the at least one compression chamber;   a second recess located at the backside of the second base plate;   an insert placed within the second recess, wherein the insert forms a cooling chamber within the second recess,   an inlet channel via which the cooling chamber is connected to the injection channel; and   an outlet channel via which the cooling chamber is connected to the inside of the second spiral wrap.   
     
     
         15 . The scroll compressor according to  claim 14 , wherein the cooling chamber, the inlet channel and the outlet channel define a cooling path configured to guide fluid from the injection channel to the inside of the spiral wrap.