| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a heat exchanger and a heating and cooling air conditioning system using the same capable of achieving both satisfactory air conditioning performance and energy saving characteristics in a cooling operation and a heating operation respectively.SOLUTION: A heat exchanger has internal volume divided at least into two by partitioning internal space. In each partitioned internal space (internal space 1 and internal space 2), a refrigerant inflow port (refrigerant inflow port 10 and refrigerant inflow port 12) and a refrigerant outflow port (refrigerant outflow port 14 and refrigerant outflow port 16) are provided. A branch pipe communicating from a refrigerant pipe to the refrigerant inflow port 10 and the refrigerant inflow port 12, and a collecting pipe for communicating from the refrigerant outflow port 14 and the refrigerant outflow port 16 to the refrigerant pipe are provided. An opening/closing mechanism 18 is provided between a branch portion of the branch pipe and the refrigerant inflow port 10, and an opening/closing mechanism 20 is provided between a collecting portion of the collecting pipe and the refrigerant outflow port 14.</p> |
