Abstract: A shaft assembling structure includes a shaft hole formed on a motor rotor and a shaft with a shaft end sheathed on a shaft hole of the motor rotor. The shaft assembling structure further includes a direction setting member secured to the top of the motor rotor and embedded with the shaft, and at least one direction setting member disposed at the bottom of the shaft assembling structure and extended into the first direction setting portion of shaft hole. The shaft end of the shaft includes at least one second direction setting portion embedded into the corresponding first direction setting portion. When the second direction setting portion is aligned precisely with the first direction setting portion, the shaft hole of the motor rotor is sheathed on the shaft end of the shaft to facilitate the process of recognizing and confirming the rotating direction of the shaft.

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.

Abstract: A shaft assembling structure includes a shaft hole formed on a motor rotor and a shaft with a shaft end sheathed on a shaft hole of the motor rotor. The shaft assembling structure further includes a direction setting member secured to the top of the motor rotor and embedded with the shaft, and at least one direction setting member disposed at the bottom of the shaft assembling structure and extended into the first direction setting portion of shaft hole. The shaft end of the shaft includes at least one second direction setting portion embedded into the corresponding first direction setting portion. When the second direction setting portion is aligned precisely with the first direction setting portion, the shaft hole of the motor rotor is sheathed on the shaft end of the shaft to facilitate the process of recognizing and confirming the rotating direction of the shaft.