Heat exchanger, housing, and air-conditioning circuit comprising such an exchanger

A heat exchanger (1) comprising:

• a plurality of tubes (2), arranged in a first and a second row (3A, 3B), and through which a refrigerant is intended to circulate;
• a first and a second header tank (4, 5) inside which tanks (4, 5) the tubes (2) of each of the rows (3A, 3B) emerge;
• a longitudinal dividing partition (16) arranged in the first header tank (4) to divide the first header tank (4) longitudinally into:
• a refrigerant inlet compartment (17) into which the tubes (2) of the first row (3A) emerge;
• and
• a refrigerant outlet compartment (18) into which the tubes (2) of the second row (3B) emerge;
• wherein the first header tank (4) comprises a bottom plate (6) having a rectangular shape and comprising a plurality of orifices (10) that accept the corresponding tubes (2);
• wherein the bottom plate (6) of the first header tank (4) comprises two semicircular deformations (20) arranged respectively facing the longitudinal ends of the inlet and outlet compartments (17, 18) and having a bottom (20A);
• wherein the bottom (20A) of the semicircular deformations (20) is connected to a face (6A) of the bottom plate (6) that is flat and faces towards a cover (8) by an intermediate connecting zone (20B) which, in axial section, has a predetermined curvature comprising a point of inflection (O);
• wherein one of the semicircular deformations (20) corresponds to a first flow path for an inlet duct (21) and another of the semicircular deformations (20) corresponds to a second flow path different from the first flow path for an outlet duct (22);
• and
• wherein the second header tank (5) comprises a plurality of transverse dividing partitions (27) arranged in the second header tank (5) to divide the second header tank (5) transversely into a plurality of return compartments (28) into which at least one tube (2) of the first row (3A) and one tube (2) of the second row (3B) emerge;
• wherein the second header tank comprises a cover (9) that takes the form of a pressed metal plate (26) defining return compartments (28), and in which portions of the metal plate (26) are in sealed contact with the corresponding bottom plate (7) to form the transverse dividing partitions (27);
• and
• wherein the cover (8) of the first header tank (4) takes the form of a pressed metal plate (15) defining the inlet compartment (17) and the outlet compartment (18).