Patent ID: 6948950

Claim:
An electrical connector box comprising: a case having open top and bottom portions, and a side opening provided in a side wall of said case; a top cover for covering the open top portion; a bottom cover for covering the open bottom portion; a power distribution unit including: a printed circuit board having a first surface with bus bars thereon and a second surface with electronic components thereon, the bus bars and electronic components being electrically connected through openings provided in said printed circuit board; a circuit board frame surrounding a perimeter portion of said printed circuit board, said circuit board frame including a central opening through which a central portion of said printed circuit board is exposed; and a metal plate having a first surface positioned against said circuit board frame to cover the first surface of said printed circuit board, said metal plate including cooling fins on a second surface thereof and a side frame engaging a perimeter of said power distribution unit and connected to said case for mounting said power distribution unit onto said case with the cooling fins exposed, wherein said power distribution unit is inserted into and covers the side opening of said case in a vertical orientation, so that the electronic components on the second surface of said printed circuit board are oriented toward an interior of said case, and the cooling fins are oriented toward an exterior of said case.