Abstract: A compressor and a refrigeration device are provided. The compressor has a shell, a compression assembly, a motor, an oil sump and an oil return channel. The shell defines a cavity. A part of the compression assembly is connected to the shell and located in the cavity. The cavity is divided into a first cavity and a second cavity by the compression assembly. A part of the motor is arranged in the first cavity. A part of the shell located below the central axis of the motor is a first shell. The oil sump is arranged in the second cavity. The oil return channel is arranged in the compression assembly, and is provided with an oil inlet facing the first cavity.

Abstract: A compressor and a refrigeration device are provided. The compressor has a shell, a compression assembly, a motor, an oil sump and an oil return channel. The shell defines a cavity. A part of the compression assembly is connected to the shell and located in the cavity. The cavity is divided into a first cavity and a second cavity by the compression assembly. A part of the motor is arranged in the first cavity. A part of the shell located below the central axis of the motor is a first shell. The oil sump is arranged in the second cavity. The oil return channel is arranged in the compression assembly, and is provided with an oil inlet facing the first cavity.

Abstract: Disclosed is an air-conditioning system, including: a compressor; a first pipeline in communication with the compressor; a second pipeline also in communication with the compressor, the first pipeline and the second pipeline being independently disposed; an evaporative condenser disposed in the first pipeline and the second pipeline, refrigerant in the first pipeline and refrigerant in the second pipeline being separately capable of performing heat exchange with the evaporative condenser; a first liquid separator disposed in the first pipeline, the first liquid separator having an outlet in communication with the compressor; and a second liquid separator disposed in the second pipeline, the second liquid separator having an outlet in communication with the compressor, and the first liquid separator and the second liquid separator being disposed adjacent to each other. Also disclosed is an air conditioner having the air-conditioning system.