US Patent 7618265 Electrical connection-and junction box for a solar cell module

A solar cell module junction box includes a chamber and a clamping spring. The chamber has first and second walls each having bottom and top ends. The spring has first and second legs connected by a middle portion. The spring is inserted into the chamber such that the middle portion is adjacent to the bottom wall ends. The first leg is fixed to the first wall and the second leg is removably connectable to the second wall. The spring is movable between a closed position in which the second leg is disconnected from the second wall and moves toward the first leg and an opened position in which the second leg is connected to the second wall with the legs forming an opening. A conductor strip inserted between the legs is contacted by the second leg and held between the legs when the spring is in the closed position.