STACKED HEAT EXCHANGER

摘要

A stacked heat exchanger including a core portion having a plurality of plates stacked on each other to define a flat refrigerant passage and a flat heat medium passage. A first connection member that provides an inlet and an outlet for allowing the refrigerant to flow into the refrigerant passage. A second connection member that provides an inlet and an outlet for allowing the heat medium to flow into the heat medium passage, in which the inlet and the outlet are configured in a state where the heat medium flowing into the heat medium passage flows in an opposite direction to that of the refrigerant flowing in the refrigerant passage. The core portion includes an offset fin disposed in at least the refrigerant passage.

主权项

1. A stacked heat exchanger including a core portion having a plurality of plates stacked on each other in a stacking direction to define a plurality of flat refrigerant passages for refrigerant which flows in a refrigeration cycle, and a plurality of flat heat medium passages for heat medium which performs a heat exchange with the refrigerant, the stacked heat exchanger comprising:
a first connection member that provides an inlet and an outlet for allowing the refrigerant to flow into the refrigerant passage; and a second connection member that provides an inlet and an outlet for allowing the heat medium to flow into the heat medium passage, in which the inlet and the outlet are configured in a state where the heat medium flowing into the heat medium passage flows in an opposite direction to that of the refrigerant flowing in the refrigerant passage, wherein the core portion includes an offset fin disposed in at least the refrigerant passage, the core portion includes
a refrigerant inlet through passage extending in the stacking direction and providing an inlet by communicating with one end of the refrigerant passages;a refrigerant outlet through passage extending in the stacking direction and providing an outlet by communicating with the other end of the refrigerant passages;a heat medium inlet through passage extending in the stacking direction and providing an inlet by communicating with one end of the heat medium passages; anda heat medium outlet through passage extending in the stacking direction and providing an outlet by communicating with the other end of the heat medium passages, the refrigerant inlet through passage and the refrigerant outlet through passage are arranged on one diagonal of the core portion, the heat medium inlet through passage and the heat medium outlet through passage are arranged on another diagonal of the core portion, the plurality of plates include a partition plate that divides the refrigerant passage and/or the heat medium passage in the core portion into a plurality of groups, and that makes the groups to communicate with each other in series, and the core portion forms a U-turn shaped flow path along a horizontal direction orthogonal to the stacking direction.