| 摘要 |
PROBLEM TO BE SOLVED: To improve a conductive efficiency by making the conductor bundle of a conductive wire and a conductor part in a close contact and fixed together. SOLUTION: A conductor bundle fastening part comprises a locknut having a center through hole through which the conductor bundle of the front end of the conductive wire penetrates and an external thread, an annular body having a center fastening through hole into which the conductor bundle is inserted and fastened. Using the conductor bundle fastening part, the conductor bundle is inserted into a threaded hole drilled on the surface of the conductor part and is connected. The threaded hole has a threaded groove formed on its inlet and a tapered inner diameter surface formed lower part of the threaded groove, wherein the diameter of the inner diameter surface becomes smaller as it goes down deep inside of the threaded hole to reach the bottom hole. The outer periphery of the conductor bundle fastening part is fitted into the tapered inner diameter surface to come in contact with it, where the conductor bundle fastening hole is pressed inward to surely hold and fix the conductor bundle. Further, the extremity of the conductor bundle is arranged to make a contact in such a way that it spreads out radially and uniformly on the side of the bottom hole, which increases the contact area between the conductor bundle and the conductor part, thus, improves conductive efficiency.
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