Horizontal type rolling rotor compressor return air cooling structure

Abstract

The present invention relates to a return air cooling structure of a horizontal rolling rotor compressor, which comprises an upper cylinder cover, an air cylinder, a lower cylinder cover, an electric motor, a piston, blades, an air inlet pipe, a crankshaft, an exhaust pipe, a muffle as well as a return air pipe; wherein, the return air pipe, which can guide exhausted air to cool the electric motor and increase the level of the pump body side oil surface, is arranged on the end of the electric motor which is far from a pump body; the exhaust pipe is arranged on the pump body side; the exhausted air is exhausted into the cavity of the electric motor through a channel on the air cylinder and the upper cylinder cover, then flows back to a compressing cavity through the return air pipe and is finally exhausted through the exhaust pipe; therefore the exhausted air can directly cool the electric motor. Compared with the prior art, the return air cooling structure can reduce the temperature of the electric motor and increase the level of the oil surface of the compressing cavity, thus increasing the efficiency of the electric motor and greatly improving the reliability of the compressor.

Description

technical field [0001] The invention relates to a return air cooling structure of a horizontal rolling rotor compressor, in particular to a heat pump water heater which prevents the refrigerant on the condenser side from migrating to the inside of the evaporator and the compressor. Background technique [0002] Generally speaking, as a machine for compressing fluid, a compressor is composed of a closed container, a motor and a compressor. The airtight container has a certain internal space; the motor component is installed in the airtight container to generate driving force; the compressor compresses the gas through the driving force of the motor. [0003] According to the type of installation, the compressor is divided into two types: horizontal and vertical. Usually, the axis of the electric part and compression part of the horizontal compressor is set parallel to the installation base of the horizontal compressor. If the vertical compressor If the machine is directly cha...

AI Technical Summary

Problems solved by technology

Although this design can ensure the cooling of the motor, due to the pressure difference, the refrigerating machine oil accumulates in the motor cavity, which makes the oil level at the oil suction pipe low, and the oil supply is likely to be insufficient, and the loss of rotor oil churning cannot be ignored.

Images