Patent ID: 8198767

Claim:
A busbar unit comprising: a plurality of busbars including at least a first busbar and a second busbar; an insulating holder in which each of the plurality of busbars is arranged; and an insulating member; wherein the holder includes a first groove portion including a first opening portion arranged to receive the first busbar, and a second groove portion arranged adjacent to the first groove portion and including a second opening portion arranged to receive the second busbar; the first busbar includes a first terminal arm portion arranged to extend across the second busbar, and the insulating member is arranged between the first terminal arm portion and the second busbar; and the insulating member is arranged within a portion of the second groove portion that has a greater thickness than thicknesses of remaining portions of the second groove portion; and an inner groove portion arranged on an opposite side of the first groove portion relative to the intersecting groove portion to be opposed to the intersecting groove portion; and a first slip-off preventing portion arranged within the inner groove portion and including: a flexible shank portion extending upward from a bottom surface of the inner groove portion; and a claw portion arranged on top of the shank portion, a portion of the claw portion being arranged to protrude in a direction corresponding to the second groove portion.