Compressor, motor thereof, and rotor balance blocks thereof

Abstract

The invention discloses a compressor, a motor thereof, and rotor balance blocks thereof. The rotor balance blocks comprise bottom plates which are annular structures, bosses which are installed on theouter ring surfaces of the annular structures, fluid passages which pass through annular walls set on the annular structures, and / or the fluid passages pass through the bosses, and the extension direction of the fluid passages and the rotor rotation direction of the motor are the same time. According to the rotor balance blocks provided by the invention, the fluid passages are set on the bottom plates and / or steps, the extension direction of the fluid passages and the rotor rotation direction of the motor are the same time, which means that the paths of the fluid passages are similar to centrifugal lines, when cooling oil flows in the motor, the flow rate of the cooling oil can be significantly accelerated through the design of the fluid passages, therefore, the return speed of the cooling oil can be greatly improved, the sufficient amount of oil in an oil pool is maintained, and the lubrication effect and operational reliability of the compressor are ensured.

Description

technical field [0001] The invention relates to the technical field of compressors, in particular to a compressor, a motor thereof, and a rotor balance weight. Background technique [0002] When the rotary frequency conversion compressor is running, the cooling oil is sucked from the oil pool at the bottom of the compressor through the pump body of the compressor, compressed and then discharged from the exhaust hole, and flows to the upper cavity of the compressor along with the flow hole opened on the rotor, and passes through the compressor block. After the oil and gas separation of the oil parts is completed, it splashes to the inner wall of the compressor housing, and flows back to the bottom of the oil pool through the stator through holes and trimming edges, and enters the next oil circuit cycle. The return speed of cooling oil affects the oil volume of the oil pool of the compressor, and plays a key role in lubricating the high-speed crankshaft, rollers and related co...

AI Technical Summary

Problems solved by technology

If the amount of oil in the oil pool is insufficient, it is very easy to cause dry grinding of the moving parts, resulting in the compressor being stuck or a sharp increase in power consumption, and the performance of the compressor is reduced, which greatly affects the stability and reliability of the compressor operation.

[0003] In the prior art, the balance block on the rotor assembly of the compressor motor is set inside the oil deflector cap, and the bottom surface of the oil deflector cap is close to the baffle plate. The oil deflector cap can only separate oil and gas once, and the separation efficiency is low. The oil rate is high, resulting in poor energy efficiency of the air conditioner; at the same time, the oil retaining cap is a regular cylindrical surface on the vertical plane, which has no benign guiding effect on the flow of cooling oil. Insufficient, aggravating the wear of parts of the compressor pump body, high power consumption of the compressor or stuck, and poor operation reliability

[0004] In addition, in the prior art, the cross-sectional area of ​​the gap between the stator teeth of the compressor motor and the wire package is small, the utilization rate of the cooling oil return channel is low, the flow of the cooling oil is disorderly, there is no effective guidance, and the return speed of the cooling oil is slow; The cooling oil flows back to the oil pool along the inner wall of the casing, the stator winding and the stator core are not cooled sufficiently, and the temperature of the stator rises, resulting in high power consumption of the compressor, which seriously affects the life and performance of the compressor motor

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