Patent ID: 6990724
Filing Date: 2006-01-31
Classification: H02K,Y10T

Abstract:
1. A dynamoelectric machine winding joining method for joining together radially-adjacent electrical conductor joint end portions two by two at an axial end portion of a cylindrical core, 2n of said electrical conductor joint end portions being arranged in a single row in a radial direction, where n is an integer equal to or greater than 2, said dynamoelectric machine winding joining method comprising: a joint end portion restraining process wherein: an intermediate holding member is interposed between pairs of said joint end portions being joined; a first radial restraining member is pressed against an innermost one of said joint end portions positioned at an innermost circumference from radially inside; a second radial restraining member is pressed against an outermost one of said joint end portions positioned at an outermost circumference from radially outside; and the interposing of the intermediate holding member and the pressing of the first and second radial restraining member place said joint end portions being joined, said intermediate holding member and said joint end portions radially-adjacent to said intermediate holding member, said first radial restraining member and said joint end portion positioned at said innermost circumference, and said second radial restraining member and said joint end portion positioned at said outermost circumference in close contact; a bending process wherein the first and second radial restraining members press the joint end portions being joined against the intermediate holding member, and the joint end portions radially-adjacent to the intermediate holding member are bent about the intermediate holding member; and a joining process for joining together said joint end portions being joined, said joining process being subsequent to said joint end portion restraining process, wherein: a plurality of said single rows of said joint end portions arranged in a radial direction are arranged at a predetermined pitch in a circumferential direction; and said intermediate holding member is disposed so as to span at least two circumferentially-adjacent rows of said joint end portions.