Connecting plug, cooling circuit equipped with such a connecting plug and method for connecting such a cooling circuit and a cold plate

A connection plug, this connection plug including:

• a connecting plate equipped with at least a passage channel centered on a central axis,
• at least one fluid coupling element able to be fluidly coupled with an external fluid coupling element of a cold plate,
• the fluid coupling element being movable, in a housing of the connecting plate, with respect to the passage channel of the connecting plate for misalignment compensation of the fluid coupling element while being in fluid communication with the passage channel, wherein:
• the connection plug includes a support member able to be fixed with respect to an internal channel for a fluid communication between the internal channel and the passage channel,
• the connection plug also includes a spring designed to elastically push the connecting plate with respect to the support member along a principal axis transverse to the central axis of the passage channel, and an abutment surface having a fixed position relative to the support member along the principal axis,
• the connecting plate is movable with respect to the support member along the principal axis between a first position and a second position, wherein in the first position, the connecting plate is pushed by the spring in abutment against the abutment surface, and wherein in the second position, the connecting plate is shifted from the abutment surface,
• and wherein the movement between the fluid coupling element and the connecting plate has a first maximal amplitude along the principal traverse axis, the movement between the connecting plate and the support member has a second maximal amplitude along the principal transverse axis, the second maximal amplitude being greater than the first maximal amplitude.