Compressor

Abstract

A compressor includes a discharge chamber, a compression chamber, a partition wall, and a discharge reed valve. The partition wall is arranged between the discharge chamber and the compression chamber and includes a fixing surface that faces the discharge chamber. The partition wall includes a discharge port that can communicate the discharge chamber and the compression chamber. The discharge reed valve includes a fixed portion, an intermediate portion, and a valve portion. The partition wall includes a supporting portion, a receiving portion, and a main coupling portion. The supporting portion supports a central region of the valve portion. The receiving portion receives a distal region of the valve portion. The main coupling portion extends from the supporting portion to couple the supporting portion and the receiving portion in order to divide into two a distal discharging region of the discharge port.

1 . A compressor comprising:
 a discharge chamber;   a compression chamber;   a partition wall arranged between the discharge chamber and the compression chamber and including a fixing surface that faces the discharge chamber, wherein the partition wall includes a discharge port that can communicate the discharge chamber and the compression chamber; and   a discharge reed valve having a length extending along a longitudinal direction, a distal end, and a basal end, wherein the discharge reed valve includes a fixed portion located at the basal end and fixed to the fixing surface, an intermediate portion extending from the fixed portion toward the distal end and being liftable relative to the fixing surface, and a valve portion further extending from the intermediate portion toward the distal end and being capable of opening and closing the discharge port, wherein   the partition wall includes a supporting portion that supports a central region of the valve portion, a receiving portion that receives a distal region of the valve portion, and a main coupling portion that extends from the supporting portion to couple the supporting portion and the receiving portion in order to divide into two a distal discharging region of the discharge port located at a distal side of the supporting portion in the longitudinal direction,   the discharge port extends through the partition wall so as to leave the supporting portion, the receiving portion, and the main coupling portion in the partition wall, and   the receiving portion has a larger width than the supporting portion in a direction orthogonal to the longitudinal direction.   
     
     
         2 . The compressor according to  claim 1 , wherein
 the partition wall includes a sub-coupling portion extending from the supporting portion to divide at least into two a basal discharging region of the discharge port located at a basal side of the supporting portion in the longitudinal direction, and   the discharge port extends through the partition wall so as to leave the supporting portion, the receiving portion, the main coupling portion, and the sub-coupling portion in the partition wall.   
     
     
         3 . The compressor according to  claim 2 , wherein
 the sub-coupling portion extends along the longitudinal direction; and   the discharge port is divided into two port segments by the sub-coupling portion, the supporting portion, the main coupling portion, and the receiving portion.   
     
     
         4 . The compressor according to  claim 3 , wherein the sub-coupling portion, the supporting portion, the main coupling portion, and the receiving portion have widths that increase toward the distal side in the longitudinal direction. 
     
     
         5 . The compressor according to  claim 2 , wherein
 the sub-coupling portion includes a first sub-coupling portion, which extends along the longitudinal direction, a second sub-coupling portion, which extends at an angle of 90° in a clockwise direction from the main coupling portion, and a third sub-coupling portion, which extends along at an angle of 90° in a counterclockwise direction from the main coupling portion, and   the discharge port is divided into four port segments by the first sub-coupling portion, the second sub-coupling portion, the third sub-coupling portion, the supporting portion, the main coupling portion, and the receiving portion.   
     
     
         6 . The compressor according to  claim 2 , wherein
 the sub-coupling portion includes a first sub-coupling portion, which extends at an angle of 120° in a clockwise direction from the main coupling portion, and a second sub-coupling portion, which extends at an angle of 120° in a counterclockwise direction from the main coupling portion, and   the discharge port is divided into three port segments by the first sub-coupling portion, the second sub-coupling portion, the supporting portion, the main coupling portion, and the receiving portion.   
     
     
         7 . The compressor according to  claim 2 , wherein the sub-coupling portion, the supporting portion, the main coupling portion, and the receiving portion are flush with the fixing surface. 
     
     
         8 . The compressor according to  claim 2 , wherein the sub-coupling portion, the supporting portion, the main coupling portion, and the receiving portion include a recess that is recessed from the fixing surface. 
     
     
         9 . The compressor according to  claim 8 , wherein the recess extends in a groove-shaped form along the longitudinal direction. 
     
     
         10 . The compressor according to  claim 8 , wherein the recess extends in a groove-shaped form along the lateral direction. 
     
     
         11 . The compressor according to  claim 2 , wherein the sub-coupling portion, the supporting portion, the main coupling portion, and the receiving portion include a crowning. 
     
     
         12 . The compressor according to  claim 1 , wherein the valve portion is enlarged in a direction that differs from the longitudinal direction as compared with the intermediate portion. 
     
     
         13 . The compressor according to  claim 1 , wherein
 the fixing surface includes a first groove portion, which extends around the discharge port, and a valve seat surface, which is located between the discharge port and the first groove portion,   the valve portion can come into contact with the valve seat surface to close the discharge port, and   the first groove portion extends to a range overlapping the intermediate portion when viewing the discharge reed valve from above in a state closing the discharge port.   
     
     
         14 . The compressor according to  claim 13 , wherein the first groove portion is an annular groove that surrounds the discharge port in a circumferential direction. 
     
     
         15 . The compressor according to  claim 13 , wherein the first groove portion has a C-shaped form and surrounds the discharge port in a circumferential direction excluding a portion at the distal side in the longitudinal direction. 
     
     
         16 . The compressor according to  claim 1 , wherein
 the fixing surface includes a second groove portion, which is located at the basal side of the discharge port in the longitudinal direction, and a communication groove, which is located in a range overlapped with the intermediate portion and which extends along the longitudinal direction,   the second groove portion extends across the intermediate portion in a lateral direction when viewing the discharge reed valve from above in a state closing the discharge port, and   the communication groove communicates the first groove portion and the second groove portion.