Patent ID: 7978459

Claim:
An electrical junction box comprises: a circuit casing and a circuit board that mounts electrical components and is contained in said circuit casing, said circuit casing including a first cover body and a second cover body, said first cover body having a base plate section provided on an outer periphery with a peripheral wall, said first and second cover bodies arranged opposite each other so that said peripheral wall contacts with said second cover body, said electrical junction box being attached to a given support section so that said circuit board stands up in a vertical direction, a portion of said peripheral wall being cut off to define a drainage aperture, a contacting portion between said peripheral wall of said first cover body and said second cover body being sealed through the entire periphery, a connector block integrally formed with either of the cover body including a plurality of connector compartments, bus bars to be electrically connected to the electrical conductive paths on the circuit board being insert-molded in the connector compartments, a first blocking wall disposed on the first cover body in a width direction above the drainage aperture, and a second blocking wall disposed on the second cover body in the width direction above the drainage aperture, wherein one of the first blocking wall and the second blocking wall is curved-shaped to at least partially enclose the other blocking wall.