Title:
冷凍サイクル装置
Document Type and Number:
Japanese Patent JP7471521
Kind Code:
B2
Abstract:
This refrigeration cycle device comprises an outdoor unit and an indoor unit, and carries out a pump-down operation for recovering the refrigerant in the indoor unit to the outdoor unit. The refrigeration cycle device also comprises: a compressor that has a motor driven by a motor current and that compresses and discharges the refrigerant; a motor current detector that detects the motor current supplied to the motor; and a control device that, on the basis of the detected motor current, determines whether air is mixed in the refrigerant flowing into the compressor, and controls the compressor according to the determination result.
Inventors:
Takagen Nakamura
Application Number:
JP2023523854A
Publication Date:
April 19, 2024
Filing Date:
May 27, 2021
Export Citation:
Assignee:
Mitsubishi Electric Corporation
International Classes:
F25B49/02; F25B1/00
Domestic Patent References:
| JP201783061A | ||||
| JP201545487A | ||||
| JP201690223A |
Attorney, Agent or Firm:
Patent Attorney Corporation Kisa Patent and Trademark Office