Electronic control unit for the motor of an electric fan

An electronic control unit for the motor of an electric fan, comprising:

• a support casing including a metal body adapted to act as a heat dissipator, and a shell of an electrically insulating material coupled with the metal body;
• and
• at least one circuit board, mounted in the casing in contact with the dissipator body, the circuit board having at least one conductive connection member electrically connected to the dissipator body;
• wherein the conductive connection member is a flexible metal blade, connected to circuits of the circuit board adjacent to an edge thereof, and a portion of which projects outside the board beyond the edge of the board;
• and
• the shell of insulating material has at least one internal formation which, upon coupling the shell with the dissipator body, interacts with the projecting portion of the blade, deforming it so as to bring it and thereafter maintain it in contact with the dissipator body, in a resiliently loaded condition.