| 摘要 |
A heat exchanger includes a plurality of flat tubes, a header collecting tube, and fins joined to the flat tubes. The header collecting tube includes a first partition member partitioning an internal space into upper and lower internal spaces, a second partition member partitioning the upper internal space into first and second spaces, an inflow port formed on the first partition member at a bottom part of the first space so as to penetrate in a plate thickness direction, an upper communicating passage, a lower communicating passage. The flat tubes are connected at one end to the first space of the header collecting tube. An inflow pipeline is connected to space that, within the lower internal space, is underneath the second space. |
| 主权项 |
1. A heat exchanger, comprising:
a plurality of flat tubes arranged mutually side by side, each flat tube having a plurality of refrigerant passages extending in a longitudinal direction; a header collecting tube extending in a vertical direction; and a plurality of fins joined to the flat tubes, the header collecting tube having a loop structure including
a first partition member partitioning an internal space into an upper internal space and a lower internal space,a second partition member partitioning the upper internal space into a first space useable to make refrigerant ascend, and a second space useable to make refrigerant descend, when the heat exchanger functions as an evaporator of refrigerant,an inflow port formed on the first partition member at a bottom part of the first space so as to penetrate in a plate thickness direction,an upper communicating passage located at upper parts of the first space and the second space, the upper communicating passage providing communication between the upper part of the first space and the upper part of the second space, thereby guiding the refrigerant that has ascended within the first space into the second space, anda lower communicating passage located at lower parts of the first space and the second space, the lower communicating passage providing communication between the lower part of the first space and the lower part of the second space and guiding the refrigerant from the second space to the first space, thereby returning the refrigerant from the second space to the first space, which has been guided from the first space to the second space and has descended within the second space, the flat tubes being connected at one end to the first space of the header collecting tube, and an inflow pipeline being connected to space that, within the lower internal space, is underneath the second space. |
