REFRIGERATION DEVICE

摘要

A refrigeration device, comprising: a first compressor unit (101), an indoor heat exchanger (3) and an outdoor heat exchanger (2), said components being connected sequentially, and the first compressor unit (101) comprising two compression chambers connected in series; a first throttle device (401) and a second throttle device (402), sequentially connected in series and arranged between an outlet of the indoor heat exchanger (3) and an inlet of the outdoor heat exchanger (2); an air supplementation device (5), arranged between the first throttle device (401) and the second throttle device (402), an inlet of the air supplementation device (5) being connected to the first throttle device (401), a first outlet of the air supplementation device (5) being connected to an air supplementation port of the first compressor unit (101), and a second outlet of the air supplementation device (5) being connected to the second throttle device (402). The refrigeration device also comprises a second compressor unit (102). An air intake port (B) of the second compressor unit (102) is connected to an outlet of the outdoor heat exchanger (2). An outlet (E) of the second compressor unit (102) is respectively connected to the air supplementation port (C) of the first compressor unit (101) and an exhaust port (D) of the first compressor unit (101) via a three-way valve (10).