Rotary compressor

Abstract

A rotary compressor includes a motor, an eccentric shaft and a cylinder installed in a casing. The motor includes a rotor and a stator. The eccentric shaft rotates with the rotor and turns around in the cylinder. The cylinder divides the casing into a high pressure chamber and a low pressure chamber, and the high pressure chamber is disposed between the motor and cylinder, and the low pressure chamber is disposed at the bottom of the cylinder. An isolating element is installed between the cylinder and the casing for isolating the high pressure chamber and the low pressure chamber. The isolating element includes at least one reflowing hole penetrated through the isolating element and interconnected between the high pressure chamber and the low pressure chamber for isolating high and low pressures effectively.

What is claimed is: 
     
         1 . A rotary compressor, comprising a casing having a motor, an eccentric shaft and a cylinder installed therein, and the motor having a rotor and a stator, and the eccentric shaft rotating with the rotor and turning around in the cylinder, and the cylinder dividing the casing into a high pressure chamber and a low pressure chamber, and the high pressure chamber being disposed between the motor and the cylinder, and the low pressure chamber being disposed at the bottom of the cylinder, characterized in that an isolating element is installed between the cylinder and the casing for isolating the high pressure chamber and the low pressure chamber, and the isolating element includes at least one reflowing hole, and the reflowing hole is penetrated through the isolating element and interconnected between the high pressure chamber and the low pressure chamber. 
     
     
         2 . The rotary compressor of  claim 1 , wherein the cylinder includes upper and lower mounts and a cylinder part disposed between the upper and lower mounts, and a fixing element disposed between the upper and lower mounts for assembling and fixing the upper and lower mounts and the cylinder part. 
     
     
         3 . The rotary compressor of  claim 2 , wherein the isolating element is a flange integrally extended from the casing and disposed at the top of the cylinder part. 
     
     
         4 . The rotary compressor of  claim 2 , wherein the isolating element is a flange integrally extended from the casing and disposed at the bottom of the cylinder part. 
     
     
         5 . The rotary compressor of  claim 2 , wherein the isolating element is a flange fixed in the casing and disposed at the top of the cylinder part. 
     
     
         6 . The rotary compressor of  claim 2 , wherein the isolating element is a flange fixed in the casing and disposed at the bottom of the cylinder part. 
     
     
         7 . The rotary compressor of  claim 1 , further comprising at least one fixing element installed between the isolating element and the cylinder. 
     
     
         8 . The rotary compressor of  claim 7 , wherein the fixing element is a bolt. 
     
     
         9 . The rotary compressor of  claim 7 , wherein the fixing element is a soldering point. 
     
     
         10 . The rotary compressor of  claim 1 , wherein the casing includes an upper casing, a lower casing and a case, and the isolating element is disposed in the case, and the upper casing and the lower casing are covered and fixed to the top and the bottom of the case respectively. 
     
     
         11 . A rotary compressor, comprising a casing having a motor, an eccentric shaft and a cylinder installed therein, and the motor having a rotor and a stator, and the eccentric shaft rotating with the rotor and turning around in the cylinder, and the cylinder dividing the casing into a high pressure chamber and a low pressure chamber, and the high pressure chamber being disposed between the motor and the cylinder, and the low pressure chamber being disposed at the bottom of the cylinder, characterized in that the cylinder includes upper and lower mounts and a cylinder part disposed between the upper and lower mounts, and a fixing element is installed between the upper and lower mounts and the cylinder part for assembling and fixing the upper and lower mounts and the cylinder, and an isolating element is installed between the cylinder and the casing, and the isolating element is a flange integrally extended from the casing and disposed at the top of the cylinder part for isolating the high pressure chamber and the low pressure chamber, and the isolating element includes at least one reflowing hole penetrated through the isolating element and interconnected between the high pressure chamber and the low pressure chamber, and at least one fixing element is installed between the isolating element and the cylinder.