Patent ID: 9472988
Filing Date: 2016-10-18
CPC Classification: H02K,Y10T

Claim Text:
1. A rotary electric machine comprising a stator having a stator core to which a plurality of coil windings are attached by winding and a connection member forming a three phase delta connection by said coil windings, wherein said connection member is arranged on the coil end portion side of said coil windings of said stator, and is composed of an insulating annular groove portion formed with double annular grooves, a first annular conductive member, a second annular conductive member, and a third annular conductive member, said first annular conductive member, said second annular conductive member, and said third annular conductive members being attached by insertion into the insulating annular groove portion; the insulating annular groove portion is formed with double grooves of one and the other, and both the grooves are connected via one window portion; said first annular conductive member, said second annular conductive member, and said third annular conductive members are each formed in a circular arc shape and provided with a plurality of arm portions extended outward in the radial direction of said stator, the plurality of arm portions being connected to the coil end portions of said coil windings respectively; said first annular conductive member and said second annular conductive member are attached by insertion into different grooves of the insulating annular groove portion, are overlapped at a part of opened sections where a circular arc is not present, are in a positional relationship in which both said annular conductive members are opened, and are attached by insertion so that the window portion is disposed at the position where both said annular conductive members are opened; and said third annular conductive member is made such that a portion to be attached by insertion into one groove and a portion to be attached by insertion into the other groove are attached by insertion into the insulating annular groove portion via the window portion.