Sounding apparatus with surface mounting terminals

Claim 1

A sounding apparatus having surface-mounting terminals, terminal surfaces of said surface-mounting terminals being in contact with a conductive pattern surface of a printed circuit board, said terminal surfaces being fixed on said conductive pattern surface by a solder to provide electrical connection, said sounding apparatus comprising: a pole piece including a flat plate portion having first openings formed thereon, and a projection extending from the center of said flat plate portion; a bobbin to be fitted around the projection of the pole piece, including magnet wire wound between flanges of said bobbin, protrusions formed on one of said flanges to be inserted into said first openings, and bobbin terminals extending through said protrusions and thereby being electrically connected with terminations of said magnet wire; said surface-mounting terminals having holes through which each of said bobbin terminals extends, said holes being arranged so as to align with said first openings of said pole piece; a molded plastic housing with said surface-mounting terminals laterally passing therethrough and partially extending from the side surfaces thereof, and said pole piece fixed inside thereof by plastic molding, said molded plastic housing firmly holding the flat plate portion of said pole piece on a top surface of a base thereof, fixedly supporting said surface-mounting terminals, having second openings formed thereon at positions corresponding to said first openings of said pole piece and said hole of said surface-mounting terminals, and having a recess on a rear surface of said base, wherein a portion of said surface mounting terminals including said hole and its surroundings is exposed in said second openings and said recess so that said bobbin terminals and said surface-mounting terminals are electrically connected in said recess.