US Patent 7267577 Connector to be mounted on an electric/electronic device

A circuit board connector has metal fixing portions (60) for fixing a synthetic resin housing (10) to a circuit board (K). The fixing portions (60) are mounted into the housing (10) and are soldered to the circuit board (K). The housing (10) has mounting grooves (15) for receiving the fixing portions (60), whereas the fixing portions (60) have retaining portions (67) for biting in edges of the mounting grooves (15) to prevent the fixing portions (60) from coming out of the mounting grooves (15). Contact positions of the retaining portions (67) and edges of the mounting grooves (15) are lower than half the maximum height (L1) of the housing (10) for keeping the fixing portions (60) solder-connected with the circuit board (K) against a separating force on the fixing portions (60) in a direction away from the circuit board (K) as the housing (10) thermally expands.