<p>Provided is a terminal board circuit wherein reliability of an electrical connection state of a terminal board and a rectangular wire is improved by a method suitable for automating manufacturing steps. The terminal board circuit includes the terminal board and the rectangular wire. An opening section through which the rectangular wire can penetrate is arranged on the terminal board, and the rectangular wire penetrates the terminal board from one side to the other through the opening section. The rectangular wire led out to the side of the terminal board is pressed to the surface and/or edge of such side of the terminal board by a terminal board protruding portion which is formed by pressing a part of the material of the terminal board from one side of the terminal board to the other without completely separating the part of the material from the terminal board.</p>
