Oil return system and air conditioner

• Main Authors: CAO LIHENG, ZHOU YU, HUA CHAO, ZHOU TANG
• Format: Patent
• Language: Chinese; English
• Published: 07.11.2023
• Subjects: BLASTING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; HEATING; LIGHTING; LIQUEFACTION SOLIDIFICATION OF GASES; MANUFACTURE OR STORAGE OF ICE; MECHANICAL ENGINEERING; REFRIGERATION MACHINES, PLANTS OR SYSTEMS; REFRIGERATION OR COOLING; WEAPONS

The oil return system comprises an evaporator, a condenser, a driving assembly and an oil tank, the driving assembly comprises a first driving part and a second driving part, the first driving part is communicated between the evaporator and the condenser, and the second driving part is communicated between the evaporator and an oil inlet of the oil tank; the pressure difference between the low-pressure gaseous refrigerant of the evaporator and the high-pressure gaseous refrigerant of the condenser can act on the first driving part, the first driving part drives the second driving part to move, and the pressure difference can be generated when the second driving part moves so that the oil-containing refrigerant in the evaporator can be driven to flow into the oil tank. Thus, the driving assembly can utilize the pressure difference between the evaporator and the condenser to drive the oil-containing refrigerant in the evaporator into the oil tank, so that efficient recovery of lubricating oil is achieved, the l