Stator for rotary electric machine, and rotary electric machine using the stator

Abstract

A stator for a multiple-phase rotary electric machine provided a stator core with slots and a coil formed of a plurality of windings for individual phases. Each winding has slot-accommodated portions held in different slots, turn portions connecting the slot-accommodated portions outside of the slots in an axial direction, and a return portion that connects two of the turn portions and changes a winding direction of the winding at given slots. The turn portions include specific turn portions which are the same in a circumferential position as the turn portion connected to the one of the return portion. The specific turn portions are located, in a radial direction, to be drawn apart from the rotor than the slot-accommodated portions connected to the specific turn portions.

Description

technical field [0001] The present invention relates to a stator for a rotary electric machine, and a rotary electric machine using the same. Background technique [0002] Recently, there is a need to use a miniaturized and high-power rotating electric machine as a motor or a generator. [0003] For example, in the case of a rotating electrical machine mounted on a vehicle, the space for loading such a rotating electrical machine is becoming smaller, but its output is required to be higher. [0004] Various types of rotating electrical machines have been used. For example, some such conventional rotating electric machines are disclosed in Japanese Patent Laid-Open Nos. 2002-176752 and 2004-320886. [0005] Each of these references discloses a stator for a rotating electrical machine. The stator for a rotating electric machine disclosed in each of these documents has a coil formed by continuous winding. [0006] In the rotating electric machines described in these referen...

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Problems solved by technology

Therefore, when these unit wire ends are connected, additional space is required in the axial dire

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