Heat exchanger for refrigerant loop

A heat exchanger for a refrigerant loop,

• the heat exchanger comprising a heat-exchange surface, a first refrigerant header and a second refrigerant header which are positioned respectively at a first longitudinal end of the heat-exchange surface and at a second longitudinal end of the heat-exchange surface,
• wherein at least one of the refrigerant headers is divided into a first collecting chamber and a second collecting chamber which are separated by a dividing wall,
• wherein each of the collecting chambers respectively comprises a fluid inlet portion and a fluid outlet portion, and
• wherein a connecting device associated with the at least one refrigerant header comprises:
• a refrigerant inlet duct divided into a first fluid inlet channel coupled to the fluid inlet portion of the first collecting chamber and a second fluid inlet channel coupled to the fluid inlet portion of the second collecting chamber, and
• a refrigerant outlet duct making the connection between a first fluid outlet channel coupled to the fluid outlet portion of the first collecting chamber and a second fluid outlet channel coupled to the fluid outlet portion of the second collecting chamber.