| 摘要 |
PURPOSE: An abnormal noise preventing device of a refrigerant tube of a heating/cooling-type air conditioner outdoor device is provided to restrict noise generated by frequent opening and closing motions of a check valve by preventing refrigerant pressure of both ends of the check valve bypassing refrigerant gas to a lower end of a heat exchanger of the outdoor device from being changed greatly. CONSTITUTION: An abnormal noise preventing device of a refrigerant tube of a heating/cooling-type air conditioner outdoor device is composed of a branch refrigerant tube(20) branched off and connected in parallel to a main refrigerant tube(10) between each heat exchanger(1,2) of an outdoor device and an indoor device and penetrated through the lower end of the heat exchanger of the outdoor device and first and second check valves(30,40) installed continuously at the side of the branch refrigerant tube at a predetermined gap to pass refrigerant gas flowing from the heat exchanger of the indoor device to the heat exchanger of the outdoor device and to cut off the refrigerant gas flowing vice versa.
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