A heat exchanger includes an inner fin arranged in a refrigerant passage. The inner fin has side wall portions formed so as to extend in a predetermined direction and arranged parallel to each other. A gap formed between the side wall portions facing each other is a passage portion through which refrigerant flows. Each of the side wall portions has a plurality of openings arranged in the predetermined direction. An inclined surface inclined with respect to the predetermined direction is formed in a part of the side wall portion located between the openings adjacent to each other.

A distributor includes at least: a first flow path through which refrigerant flowing in from a refrigerant inflow unit flows in a first direction toward a heat transfer tube disposed on the side of a refrigerant outflow unit; two second flow paths branched from the first flow path; two third flow paths, through each of which the refrigerant flows in a second direction opposite to the first direction; two fourth flow paths, each of which is formed to protrude from a main body toward the second direction and through each of which the refrigerant flows in a third direction intersecting the two third flow paths; and two fifth flow paths, through each of which the refrigerant flows in the first direction.

A heat exchange device has a plate stack unit obtained by continuous stacking of a plurality of plates. This plate stack unit includes a condenser unit, an evaporator unit, and an internal heat exchange unit. The condenser unit is configured such that a passage for allowing a high pressure refrigerant to flow, and a passage for a heat medium for absorbing heat from the high pressure refrigerant are stacked between a set of plates among the plurality of plates. The evaporator unit is configured such that a passage for allowing a low pressure refrigerant to flow, and a passage for a heat medium for applying heat to the low pressure refrigerant are stacked between a set of plates among the plurality of plates. The internal heat exchange unit is configured such that a passage for allowing the high pressure refrigerant to flow, and a passage for allowing the low pressure refrigerant to flow are stacked between a set of plates among the plurality of plates.

A stacked heat exchanger includes a first heat-exchanging portion in which heat is exchanged between a refrigerant and a coolant. The first heat-exchanging portion has multiple first plate members stacked and bonded to one another, and multiple first refrigerant channels and multiple coolant channels provided among the multiple first plate members. The multiple first refrigerant channels and the multiple coolant channels are arranged in a staking direction of the multiple first plate members. The stacked heat exchanger further includes a second ceiling board bonded to a first ceiling board which is one of the multiple first plate members located on an outermost side in the stacking direction, and a vapor-liquid separation portion having a space between the first ceiling board and the second ceiling board, separating the refrigerant flowed in into a vapor and a liquid, and storing an excess refrigerant in a refrigeration cycle.

A refrigeration system includes a core comprising a stack of core plates. The core defines a condenser, an evaporator and a refrigerant reservoir. The condenser has a plurality of refrigerant flow passages and a plurality of first coolant flow passages in alternating arrangement. The evaporator has a plurality of refrigerant flow passages and a plurality of second coolant flow passages in alternating arrangement. The condenser has a refrigerant outlet in flow communication with the refrigerant inlet of the refrigerant reservoir, where the refrigerant side of at least one of said core plates includes a refrigerant communication passage providing flow communication between the refrigerant outlet of the condenser section and the refrigerant inlet of the reservoir section.

A heat exchanger, in particular for a thermal management module is provided and includes, numerous plates, a first flow path for a coolant, a second flow path for a refrigerant, and a reservoir for separating gaseous and liquid portions of the refrigerant from one another and/or for collecting and storing the refrigerant, wherein the plates are stacked or placed next to one another such that channels are formed between adjacent plates. A first part of the channels belongs to the first flow path, and a second part of the channels belongs to the second flow path. The second flow path contains a first section for heating and condensing the vaporous refrigerant, and the second flow path contains a second section for super-cooling the condensed refrigerant. The refrigerant flows from the first section into the second section via the reservoir. The plates each have at least five holes. Six connections, which form the fluid intakes and outlets for the two flow paths, are all located at the same end of the stack of plates in the heat exchanger. Another connector is connected to the first section to form a fluid intake for the reservoir, and a further connector is connected to the second section to form a fluid outlet for the reservoir.