Scroll compressor

Abstract

A scroll compressor includes an orbiting scroll member, a non-orbiting scroll member, a spacing block, and an annular pressure piece. The non-orbiting scroll member is disposed on the orbiting scroll member. The spacing block has a first annular recess and at least one first through hole. The spacing block is disposed on the non-orbiting scroll member. The first through hole is located within the first annular recess and penetrates the spacing block. The annular pressure piece has a second annular recess and at least one second through hole. The second through hole is located within the second annular recess and penetrates the annular pressure piece. The annular pressure piece is accommodated within the first annular recess. One side disposed with the second annular recess of the annular pressure piece faces the spacing block. The annular pressure piece is located between the spacing block and the non-orbiting scroll member.

1 . A scroll compressor, comprising:
 a motor, having a transmission shaft;   a frame, disposed on the motor;   an orbiting scroll member, disposed on the frame, wherein the transmission shaft penetrates the frame and is connected to the orbiting scroll member;   a non-orbiting scroll member, disposed on the orbiting scroll member;   a spacing block, having a first annular recess and at least one first through hole, wherein the first through hole is located within the first annular recess and penetrates the spacing block, and the spacing block is disposed on the non-orbiting scroll member;   an annular pressure piece, having a second annular recess and at least one second through hole, wherein the second through hole is located within the second annular recess and penetrates the annular pressure piece, the annular pressure piece is accommodated within the first annular recess, one side disposed with the second annular recess of the annular pressure piece faces the non-orbiting scroll member, and the annular pressure piece is located between the spacing block and the non-orbiting scroll member; and   a shell, for accommodating the motor, the frame, the orbiting scroll member, the spacing block, and the annular pressure piece.   
     
     
         2 . The scroll compressor according to  claim 1 , wherein the spacing block is fixed within the shell and the annular pressure piece is disposed within the first annular recess in a manner of sliding relative to the spacing block. 
     
     
         3 . The scroll compressor according to  claim 2 , wherein the non-orbiting scroll member has a projecting portion, the through hole penetrates the projecting portion, and the projecting portion penetrates the spacing block in a manner of sliding relative to the spacing block. 
     
     
         4 . The scroll compressor according to  claim 3 , wherein the spacing block separates the shell into a high pressure cavity and a low pressure cavity, the orbiting scroll member and the non-orbiting scroll member compress a refrigerant into a high-pressure gaseous refrigerant when the refrigerant enters the low pressure cavity, and the high-pressure gaseous refrigerant enters the high pressure cavity via the through hole. 
     
     
         5 . The scroll compressor according to  claim 4 , wherein the high-pressure gaseous refrigerant is distributed within the second annular recess via the first through hole and the second through hole, so as to push the non-orbiting scroll member towards the orbiting scroll member. 
     
     
         6 . The scroll compressor according to  claim 3 , further comprising: an annular sealing piece, wherein the projecting portion penetrates the annular sealing piece and the annular sealing piece is located between the projecting portion and the spacing block. 
     
     
         7 . The scroll compressor according to  claim 1 , further comprising: an annular sealing piece, disposed between an inner wall surface of the spacing block disposed with the first annular recess and the annular pressure piece. 
     
     
         8 . The scroll compressor according to  claim 1 , further comprising: an annular sealing piece, disposed between an outer wall surface of the spacing block disposed with the first annular recess and the annular pressure piece. 
     
     
         9 . The scroll compressor according to  claim 1 , wherein an inner edge of the annular pressure piece has an annular flange. 
     
     
         10 . The scroll compressor according to  claim 1 , wherein an outer edge of the annular pressure piece has an annular flange. 
     
     
         11 . The scroll compressor according to  claim 1 , wherein the frame is fixed to the shell and the transmission shaft is a crank shaft. 
     
     
         12 . The scroll compressor according to  claim 1 , wherein the annular pressure piece has more than two second through holes. 
     
     
         13 . The scroll compressor according to  claim 1 , wherein the second through hole is circular or strip-shaped. 
     
     
         14 . The scroll compressor according to  claim 13 , wherein the annular pressure piece has more than two second through holes. 
     
     
         15 . The scroll compressor according to  claim 1 , wherein an outer edge of the second annular recess is a linear type and an inner edge of the second annular recess is the annular flange. 
     
     
         16 . The scroll compressor according to  claim 1 , wherein the second through holes are distributed on the annular pressure piece in a symmetric manner. 
     
     
         17 . The scroll compressor according to  claim 1 , wherein the spacing block further has a third through hole. 
     
     
         18 . The scroll compressor according to  claim 17 , wherein the projecting portion of the non-orbiting scroll member is inserted in the third through hole. 
     
     
         19 . The scroll compressor according to  claim 1 , wherein the second annular recess communicates with the first through hole and the second through hole.