REFRIGERATION DEVICE

摘要

A refrigeration device, comprising: a compressor unit (1) and an air supplementation device (5). The compressor unit (1) comprises a primary path compression chamber and an auxiliary path compression chamber (P3). The primary path compression chamber comprises a low-pressure compression chamber (P1) and a high-pressure compression chamber (P2) connected to one another in series. The primary path compression chamber is provided with a first air intake port (A) and an exhaust port (D). The auxiliary path compression chamber (P3) is provided with a second air intake port (B). An exhaust port of the auxiliary path compression chamber (P3) is connected between the low-pressure compression chamber (P1) and the high-pressure compression chamber (P2). An air supplementation pipe is arranged between the primary path compression chamber and the air supplementation device (5). The air supplementation pipe is provided with a third air intake port (C) and a first outlet. The first outlet is connected between the low-pressure compression chamber (P1) and the high-pressure compression chamber (P2). At least one of the first air intake port (A), the second air intake port (B) and the third intake port (C) takes in air so as to enable at least one of the low-pressure compression chamber (P1), the high-pressure compression chamber (P2) and the auxiliary path compression chamber (P3) to be in an operational state. The refrigeration device can effectively improve heating capacity when at a low temperature.