Patent ID: 7733632

Claim:
A vehicle-mounted electrical junction box comprising: a casing; a circuit board; a fuse module; a relay module; fuses; relays; connectors; and an ECU, wherein: the casing includes a first casing member and a second casing member, the circuit board is disposed in the casing, the fuse module receives the fuses and is disposed near a side end of the circuit board, the relay module receives some of the relays and is disposed near the side end of the circuit board, such that the fuse module and the relay module are arranged side-by-side, the fuse module and the relay module are arranged perpendicularly to first and second surfaces of the circuit board respectfully; and others of the relays and connectors are mounted on the first surface of the circuit board and the ECU is disposed on the second surface of the circuit board, wherein the first casing member is provided with a fuse module mounting section and the second casing member is provided with a relay module mounting section, and the fuse module is attached to the fuse module mounting section and the relay module is attached to the relay module mounting section.