INTERFACE AND ASSEMBLY FOR CONNECTING REFRIGERANT TUBES IN A COOLING ASSEMBLY OF AN ELECTRICAL STORAGE DEVICE

The invention relates to a connection interface (20) for a connection assembly (10) for connecting refrigerant tubes in a cooling assembly of a motor vehicle electrical storage device, the connection assembly (10) comprising at least one flange (18) made integral with a heat exchange member (4), said connection interface (20) being arranged at end portions (24) of refrigerant fluid tubes to be connected to said heat exchange member, characterised in that the connection interface (20) comprises a first portion (50) integral with the end of each of the tubes (12) and a second portion (52) mounted freely around the tubes, the second portion comprising openings (64, 66) for passing the tubes dimensioned to allow a clearance for relative movement therebetween of the two portions (50, 52) of the connection interface (20), at least in a plane perpendicular to a direction of elongation of the end portions of the tubes, the connection interface (20) being configured to engage with a securing member (36) capable of setting the position of the two portions relative to each other.