Patent ID: 11952998
Assignee: ANHUI MEIZHI COMPRESSOR CO., LTD.
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC F | IPC F

Claim 19:
20. A refrigeration device comprising an inverter compressor, wherein the inverter compressor comprise a crankshaft, the crankshaft comprising:
a main shaft;
a crank; and
a crank shaft mounted at an end of the main shaft through the crank, wherein:
one end of the main shaft away from the crank shaft has an oil suction inner chamber, and another end of the main shaft connected to the crank shaft has an oil distribution channel extending to and perpetrating the crank shaft;
an outer wall surface of the main shaft has a first spiral oil groove and a second spiral oil groove, wherein:
a spiraling direction of the first spiral oil groove is opposite to a spiraling direction of the second spiral oil groove;
one end of each of the first spiral oil groove and the second spiral oil groove is in communication with the oil suction inner chamber, another end of the first spiral oil groove deflects towards a central axis of the main shaft to form a first hole channel in communication with the oil distribution channel, and another end of the second spiral oil groove deflects towards the central axis of the main shaft to form a second hole channel in communication with the oil distribution channel; and
a depth of the first hole channel is substantially equal to a depth of the second hole channel, and an area of an outlet, in communication with a distribution oil hole, of the first hole channel is substantially equal to an area of an outlet, in communication with the distribution oil hole, of the second hole channel.