An induction device for an induction heating plate (5), is adapted in such a way as to be arranged beneath a vitroceramic plate and includes at least first and second individual electroconductive windings (3A and 3B) which are arranged next to each other in a first plane. The device includes a magnetic conductive element (6) forming a coupling member which extends beneath the first individual winding (3A) and the second individual winding (3B) in such a way as to magnetically couple the first and second individual windings (3A and 3B). The invention can be especially used in an induction cooking surface.