The invention relates to a device (2) for transferring heat from a thermally conductive plate (3) capable of capturing the heat from a zone placed on a first side (32) of the plate, the device comprising at least one fin (35) placed on a second side (34) of the plate (30) opposite the first side (32) and having a duct (36) extending in a longitudinal direction (L) between a first end (38) connected to the plate and a second end (4) opposite the first end and which opens out, the duct (36) being connected to at least one Venturi-effect neck (42) bringing cooling air into the duct, the neck (42) being formed in the vicinity of the first end of the duct and the plate (30).