CONNECTING PART FOR WATER-COOLED BUS BAR

PROBLEM TO BE SOLVED: To easily absorb heat extension/contraction of a water-cooled bus bar, by electrically connecting the water-cooled bus bar to each other by a conductor connecting metal fixture, arranging a contactor in both side internal parts, so that the water-cooled bus bar, while mutually coming into contact with the contactor, can be extended/contracted in the conductor connecting metal fixture. SOLUTION: This constitution comprises a cylindrical conductor connecting metal fixture 3 having a contactor 2 into electrical contact with a water-cooled bus bar 1 in both side internal parts, waterproof seal 4 positioned in both sides of the conductor connecting metal fixture 3 to cover a periphery of the water- cooled bus bar 1 and a fastening metal fixture 5 closely mounting the waterproof seal 4 in the periphery of the water-cooled bus bar 1 and an end face of the conductor connecting metal fixture 3. In this way, an effect of electrical connection to each other of the water-cooled bus bar, absorption of its heat extension/contraction, facilitation of laying, etc., is obtained.