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Stator

A stator and stator core technology, applied in the direction of electromechanical devices, electrical components, windings, etc., can solve the problem of increased coil end height, and achieve the effect of easy joining and miniaturization

Active Publication Date: 2015-02-11
AISIN AW CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, in the stator disclosed in Patent Document 1, the transition line is arranged outside the winding portion of the coil in the central axis direction of the stator core, so the height of the coil end becomes large.
Therefore, the stator is enlarged in the direction of its central axis

Method used

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Embodiment Construction

[0022] The stator 1 (stator) of this embodiment will be described. Such as Figure 1 ~ Figure 4 As shown, the stator 1 has a stator core 10, coils 12 (coil 12U, coil 12V, coil 12W) and the like.

[0023] The stator core 10 is formed in a ring shape and includes a back yoke 14 and teeth 16 . The stator core 10 is integrally formed in its circumferential direction. Here, the portion of the back yoke 14 on the outer peripheral side of the stator core 10 is formed in a ring shape. In addition, a plurality of tooth portions 16 are formed so as to protrude radially inward from the inner peripheral surface of the back yoke 14 . Furthermore, slots (not shown) are formed between adjacent tooth portions 16 .

[0024] A plurality of coils 12 are attached to the teeth 16 of the stator core 10 via an insulator (not shown) of an insulating member so as to be wound intensively. In addition, in order to ensure insulation between adjacent rectangular conductors, the surface of the rectang...

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Abstract

According to one aspect of the present invention, in a stator, each coil is a multi-layer coil that is formed by winding a conductor in a plurality of layers in an inside-outside direction of loops in a winding portion, and that includes on inner and outer peripheral sides of a coil end portion a plurality of lane change portions formed by the conductor, and a bus bar portion is embedded in a clearance between the lane change portions of the coil of a different phase placed between the coils of the same phase which are connected to each other.

Description

technical field [0001] The present invention relates to a stator for a rotating electrical machine in which coils are arranged in a plurality of slots in a stator core. Background technique [0002] As a prior art related to a stator for a rotating electrical machine (motor), Patent Document 1 discloses a transition line (bus bar portion) formed by pulling out one end portion of a coil wire (conductor) forming a coil to connect adjacent the in-phase coils of the stator with each other. [0003] Patent Document 1: Japanese Patent Laid-Open No. 2010-110122 [0004] However, in the stator disclosed in Patent Document 1, the transition wire is arranged outside the coil winding portion in the central axis direction of the stator core, so the height of the coil end becomes large. Therefore, the stator increases in size in the direction of its central axis. Contents of the invention [0005] Therefore, the present invention was made to solve the above-mentioned problems, and a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K3/50H02K3/38
CPCH02K2203/06H02K3/18H02K2203/09H02K3/522H02K3/38H02K3/505H02K3/50H02K3/04H02K3/28
Inventor 桥本伸吾田中宏幸太田贵宪佐藤真吾仓繁大地川浦弘贵赤尾宪彦
Owner AISIN AW CO LTD