Method for the manufacturing of thermoelectric modules

Claim 1

Method for manufacturing thermoelectric modules from blocks of P type and of N type, having a parallelepipedical shape and having the same dimensions, and including the steps of: cutting each parallelepipedical block parallel to one of its faces into plates of P type and plates of N type; assembling alternately the same number of plates of P type and of N type, after having inserted between the adjacent faces thereof very thin insulating sheets having the same dimensions as the plates, to form a stack (3); cutting that stack into thin slices in a direction perpendicular to the faces of the P and N plates so as to form slices each composed of a series of rods of alternating P and N type; forming a parallelepipedic stack by assembling in a parallel configuration a certain number of these slices, after having inserted between the adjacent faces thereof very thin insulating sheets, so as to place successively a slice beginning with a P rod then a slice beginning with an N rod; characterized in that the insulating sheets (3); 32, 33, 34, 35) inserted between the P plates (11, 12, 13) and N plates (21, 22, 23) are arranged alternately so as to be substantially recessed in relation to the plates on one face (4) of the stack (3) and slightly protruding on the opposite face (5), and in that the said opposite faces (4, 5) of the said stack (3) from which the sheets (31, 32, 33, 34, 35) protrude are immersed in brazing material before said cutting of the stack (3).