HEAT EXCHANGER AND AIR CONDITIONER HAVING THE SAME

    公开(公告)号:US20210140691A1

    公开(公告)日:2021-05-13

    申请号:US17098015

    申请日:2020-11-13

    Abstract: A heat exchanger and an air conditioner including the same. The heat exchanger includes a plurality of heat transfer tubes formed in a flat shape and configured to allow a refrigerant to flow in a vertical direction therein. The heat transfer tube includes a gas refrigerant region including one end connected to a refrigerant inlet port and another end disposed above the refrigerant inlet port; a two-phase refrigerant region including one end connected to the other end of the gas refrigerant region and another end disposed below a refrigerant outlet port; and a liquid refrigerant region including one end connected to the other end of the two-phase refrigerant region and another end connected to the refrigerant outlet port.

    REFRIGERANT CHARGE DEVICE AND REFRIGERANT CHARGE SYSTEM HAVING THE SAME

    公开(公告)号:US20210003332A1

    公开(公告)日:2021-01-07

    申请号:US16920264

    申请日:2020-07-02

    Abstract: The present invention provides an inexpensive and stable refrigerant charging device and a refrigerant charging system by improving a charging speed and reducing costs while preventing liquid-back. The present invention includes a refrigerant charging flow path having a refrigerant charging port connected to a refrigerant flow path of an air conditioner, a valve provided at the refrigerant charging flow path, and a control device configured to control the valve. The control device includes a discharging superheat calculator configured to calculate the discharging superheat degree from a refrigerant temperature and a refrigerant pressure at a discharge side of a compressor, and a valve controller configured to control the opening and closing state of the valve based on the calculated discharging superheat degree calculated by the discharge super-heat calculator.

Patent Agency Ranking