| 摘要 |
PROBLEM TO BE SOLVED: To provide an electrical junction box that radiates heat generated by a busbar without diffusing it toward other components.SOLUTION: An electrical junction box 1 includes a frame 4 comprising a cassette block 2 mounted with a plurality of components including the busbar, and a frame part 3 fitted with the cassette block 2. The cassette block 2 has component mounting parts mounted with relays and fuses, and a connector fitting part 21 fitted with a connector of an input power line. In the connector fitting part 21, the connector is electrically connected to a power input part of the busbar. The electrical junction box 1 has a radiating enclosure wall 7 providing an enclosure just above the connector fitting part 21. The radiating enclosure wall 7 comprises part of the cassette block 2 and part of the frame part 3, and forms therein a radiation space S where no components are mounted. |
