Rotary Electric Machine

Patent metadata

Field	Value
Publication number	US-2017005537-A1
Application number	US-201415101175-A
Country	US
Kind code	A1
Filing date	Oct 31, 2014
Priority date	Dec 5, 2013
Publication date	Jan 5, 2017
Grant date	—

Abstract

A rotational electric machine achieving both of productivity and insulation property is provided. A rotational electric machine includes an iron core having a plurality of slots, and a plurality of segment conductive bodies arranged in the slots, wherein the iron core includes a coil guide arranged at, at least, one of opening portions of the slots, and the coil guide includes a slot insertion portion located between the slot and the segment conductive body and at least one separation portion located between the segment conductive bodies, and the slot insertion portion and the separation portion are arranged in the slot together with the segment conductive body.

First claim

1 . A rotational electric machine comprising:
an iron core having a plurality of slots; and a plurality of segment conductive bodies arranged in the slots, wherein the iron core includes a coil guide arranged at, at least, one of opening portions of the slots, and the coil guide includes a slot insertion portion located between the slot and the segment conductive body and at least one separation portion located between the segment conductive bodies, and the slot insertion portion and the separation portion are arranged in the slot together with the segment conductive body.

2 . The rotational electric machine according to claim 1 , wherein an insulation material filling material is filled between the segment conductive body and the slot.

3 . The rotational electric machine according to claim 2 , wherein two coil guides arranged at both ends of the slots form a space for accumulating the insulation material filling material between the end portions facing each other in the slot.

4 . The rotational electric machine according to claim 1 , wherein at an axial direction end portion of an opening portion of the coil guide, a coil clearance having an R surface or an inclined surface is provided in a circumferential direction.

5 . The rotational electric machine according to claim 4 , wherein the coil clearances are provided to be located alternately in a diameter direction.

6 . The rotational electric machine according to claim 1 , wherein the coil guide has a flange portion at one end in the axial direction, and the flange portion covers a side surface portion of the iron core located on a circumference of the slot.

7 . The rotational electric machine according to claim 1 , wherein two or more coil guides are provided in a circumferential direction.

8 . The rotational electric machine according to claim 1 , wherein the coil guide is made of an insulation material.

9 . The rotational electric machine according to claim 1 , wherein the iron core is a stator.

10 . The rotational electric machine according to claim 1 , wherein the iron core is a rotator.

Assignees

• Hitachi Automotive Systems Ltd

Inventors

• Matahira Hiroshi
• Mori Yoshimi
• Oomori Takahiro
• Koizumi Takayuki

Classifications

• H02K15/067

  inserted in parallel to the axis of the slots or inter-polar channels · CPC title

• H02K3/34

  between conductors or between conductor and core, e.g. slot insulation · CPC title

• H02K15/12

  Impregnating, moulding insulation, heating or drying of windings, stators, rotors or machines · CPC title

• H02K3/12 Primary

  arranged in slots · CPC title

• H02K2213/12

  Machines characterised by the modularity of some components · CPC title