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Stator for rotating electrical machine

A technology for rotating electrical machines and stators, which is applied in the manufacture of motor generators, electromechanical devices, electrical components, etc., and can solve problems such as difficulty in fully blocking the gap between joint ends

Active Publication Date: 2019-08-23
AISIN AW CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the spray coating illustrated in Patent Document 1 requires pretreatments such as masking, and similarly, the fluid dip coating illustrated requires pretreatments such as preheating.
In addition, in all coating methods, when insulating resin is used to close the gap between adjacent joint ends, pretreatment such as adjusting the viscosity of the insulating resin to be applied is required, and it is difficult to sufficiently close the gap between joint ends. there are problems

Method used

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  • Stator for rotating electrical machine
  • Stator for rotating electrical machine
  • Stator for rotating electrical machine

Examples

Experimental program
Comparison scheme
Effect test

no. 1 approach 〕

[0034] A first embodiment of a stator for a rotating electrical machine will be described. The stator 1 of this embodiment is a stator for a rotating electric machine, and is used together with a rotor (not shown). The "rotating electrical machine" is a concept including any one of a motor, a generator, and a motor-generator that functions as both a motor and a generator as needed. More specifically, the stator 1 is, for example, a stator used in a rotating field type rotating electrical machine, and functions as an armature. On the inner side in the radial direction of the stator 1 , a rotor serving as an excitation system including permanent magnets, electromagnets, and the like is arranged across an air gap. The rotor rotates by a rotating magnetic field generated from the stator 1 .

[0035] In addition, in the following description, "axial direction L", "circumferential direction C", and "radial direction R" are defined based on the axial center of the cylindrical iron ...

no. 2 approach 〕

[0057] A second embodiment of the stator for a rotating electrical machine will be described. In this embodiment, the specific manner of forming the groove 62 in the cap member 6 is different from that of the first embodiment. Hereinafter, regarding the stator 1 of this embodiment, differences from the first embodiment will be mainly described. In addition, about the point which is not specifically described, it is the same as that of 1st Embodiment, and the same code|symbol is attached|subjected, and detailed description is abbreviate|omitted.

[0058] Such as Figure 5 with Image 6 As shown, the groove 62 in this embodiment has a depth along the radial direction R, which is the extending direction E of the engaging end portion 48 , and is formed to extend along the axial direction L perpendicular to the extending direction E of the engaging end portion 48 . The groove 62 is formed to have a trapezoidal cross-sectional shape viewed from the direction in which it extends (...

no. 3 approach 〕

[0061]A third embodiment of the stator for a rotating electric machine will be described. In this embodiment, the arrangement of the joint end portion 48 on the winding 4 is different from the first embodiment, and accordingly, the specific formation of the groove 62 on the cap member 6 is also partly different from the first embodiment. Hereinafter, regarding the stator 1 of this embodiment, differences from the first embodiment will be mainly described. In addition, about the point which is not specifically described, it is the same as that of 1st Embodiment, and the same code|symbol is attached|subjected, and detailed description is abbreviate|omitted.

[0062] Such as Figure 7 with Figure 8 As shown, the end portion 45e of the connecting portion 45 in this embodiment is arranged to extend in the axial direction L. As shown in FIG. Furthermore, the joint end portions 48 are arranged to extend parallel to each other in the axial direction L which is the same direction a...

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Abstract

The present invention provides a stator for a rotating motor, in the case of connecting a plurality of conductor wires to form a winding of the rotating motor stator, it is possible to properly ensure the electrical insulation between the adjacent joint terminals. In the stator for rotating motors, the ends of the wire parts of a plurality of conductors constituting the winding (4) (4e) are joined to each other to form the joint terminals (48). The joint end (48) is configured with multiple circumferential (C) along the core (3) and is configured to extend radially along the radial (R). In a manner of covering a plurality of adjacent joint ends (48) in one piece, there is a cap member molded using a resin material (6).

Description

technical field [0001] The present invention relates to a stator for a rotating electric machine. Background technique [0002] Generally, a stator for a rotating electrical machine includes a core having a plurality of slots and a winding attached to the core. As such a stator for a rotating electric machine, a stator for a rotating electric machine is known in which a winding includes a plurality of conductor wire portions arranged side by side in a slot. The ends protruding out of the grooves of the conductor wires are joined together in the stripped state to form joint ends. Therefore, after joining, it is necessary to ensure electrical insulation at this portion. Regarding this point, for example, JP-A-2001-238419 (Patent Document 1) discloses that an insulating resin is formed by coating and forming an insulating resin at a joint end portion between ends of conductor wire portions. In addition, Patent Document 1 discloses that an insulating resin is used to close the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02K3/38H02K3/34
CPCH02K3/38H02K1/141H02K1/148H02K1/165H02K1/2733H02K3/18H02K3/522H02K15/022H02K15/0435H02K15/067H02K15/08
Inventor 三好洋一横田纯一古贺清隆菅原纯一木村英明
Owner AISIN AW CO LTD