Patent ID: 8345443

Claim:
A circuit board assembly, comprising: a circuit board; a substrate; and a supporting frame fixed to, and supporting, the substrate, the supporting frame comprising: a main body comprising a first arm and a second arm connected to the first arm; a pressing supporting portion extending downwards from a junction of the first arm and the second arm for counterbalancing a downward force applied upon the substrate; a pulling supporting portion extending downwards from a distal end of each of the first arm and second arm for counterbalancing an upward force applied upon the substrate; two fixing portions respectively formed on the first arm and the second arm, each of the fixing portions being located between the pressing supporting portion and one corresponding pulling supporting portion and being closer to the corresponding pulling supporting portion, the fixing portions fixing the supporting frame to the circuit board; wherein the fixing portions extend from a top side of the main body, and the pulling supporting portions and the pressing supporting portion extend from a bottom side of the main body; wherein the pulling supporting portions and pressing supporting portion are perpendicular to the main body, each of the pulling supporting portions and pressing supporting portion comprising a connecting plate connected to the main body and a resisting plate bending from a bottom of the connecting plate, the resisting plates of the pulling supporting portions and pressing supporting portion being coplanar with one another and abutting against the substrate; and wherein the connecting plates of the pulling supporting portions and pressing supporting portion have the same height, and all are equal to a distance between the circuit board and the substrate.