There is a terminal block with leaf spring metal terminals that extend
downward from a housing on the side opposite the open end of the housing
in which a diaphragm is fitted and fixed, and an elastic material
functions as a pad that is sandwiched between the surface of a circuit
board and the open side of the housing on the side from which the metal
terminals project, with the metal terminals pressed against the conduction
pattern of the circuit board to make an electrical connection.
Alternatively, the contact point that is connected electrically to the
conductive pattern of the circuit board is on the side on which the
diaphragm is mounted and the metal terminals have flat plates for
electrical connection of voice coil lead wires on the side opposite that
where the diaphragm is mounted, so that the voice coil lead wires extend
outside the housing and are connected electrically to the flat plates of
the metal terminals on the side opposite the side where the diaphragm is
mounted, and the side where the diaphragm is mounted faces the surface of
the circuit board and away from the inside of the outer casing of the
equipment.
