公开(公告)号：EP4130614A1

公开(公告)日：2023-02-08

申请号：EP21902140.9

申请日：2021-09-18

申请人： HEFEI MIDEA HEATING & VENTILATING EQUIPMENT CO., LTD. ,  GD Midea Heating & Ventilating Equipment Co., Ltd.

发明人： YAN, Libo ,  MA, Huanqiao ,  ZHANG, Tiegang ,  LI, Zhongzhen ,  CUI, Yuanbo

IPC分类号： F25B43/02

摘要： The present disclosure belongs to the technical field of air conditioners, and particularly relates to an oil separator and an outdoor unit of an air conditioner. The oil separator comprises a tank body, an inlet pipe, a gas outlet pipe and a separating member, the lower end of the tank body being provided with an oil outlet, the inlet pipe being connected to the tank body, the central line of the inlet pipe being parallel to a horizontal direction, the gas outlet pipe being connected to the upper end of the tank body, at least a part of the gas outlet pipe extending into the tank body, the separating member being arranged inside the tank body and spaced apart from the tank body, and a plurality of separating holes being provided in the separating member at intervals, wherein the tank body has an axial surface, the central line of the inlet pipe is eccentrically arranged relative to the axial surface, and the whole inlet pipe is positioned at one side of the axial surface. According to the oil separator in embodiments of the present disclosure, a mixture has a tangential speed and rotates in the tank body, oil-gas separation is realized by means of a centrifugal force, and the kinetic energy loss is reduced. The inlet pipe is parallel to the horizontal direction so as to prevent unnecessary collisions between the mixture and the upper end of the tank body, and to allow sufficient time for the mixture to be separated.

公开(公告)号：EP4261471A1

公开(公告)日：2023-10-18

申请号：EP21918938.8

申请日：2021-09-07

申请人： GD Midea Heating & Ventilating Equipment Co., Ltd. ,  Midea Group Co., Ltd.

发明人： LI, Zhongzhen ,  FAN, Bo

IPC分类号： F24F140/10 ,  F24F11/77 ,  F24F110/12

摘要： An air conditioning system (200) and a refrigerant state detection method and apparatus thereof. By adjusting first operating parameters of the air conditioning system (200), where the first operating parameters include a frequency of a compressor (204), a wind speed setting, and an opening degree of an electronic expansion valve (206); collecting second operating parameters of the air conditioning system (200) at a preset time after the first operating parameters have been adjusted, where the second operating parameters include an outdoor environment temperature and operating parameters of the compressor (204); and determining a refrigerant state of the air conditioning system (200) according to the second operating parameters, it is possible to accurately obtain the refrigerant state of the air conditioning system (200) according to the operating parameters of the air conditioning system (200), and improve the safety and reliability of the air conditioning system (200) during use.