Rotary electric machine and manufacturing method for rotary electric machine

Patent metadata

Field	Value
Publication number	US-9467018-B2
Application number	US-201213569934-A
Country	US
Kind code	B2
Filing date	Aug 8, 2012
Priority date	Mar 22, 2012
Publication date	Oct 11, 2016
Grant date	Oct 11, 2016

Abstract

The rotary electric machine includes: a stator ( 1 ) of concentrated winding in which a stator winding ( 14 ) is wound around a stator core ( 11 ), the stator core including a coil bobbin ( 13 ) and an insulating paper ( 12 ); and as a mechanism for supporting a terminal portion of the stator winding extending from the stator disposed in an annular shape, an end portion supporting member ( 18 ) for supporting a winding finishing end portion of the stator winding in a substantially linear section ( 16 ) of the stator winding, the substantially linear section being provided from a last winding portion of the coil bobbin to the winding finishing end portion.

First claim

What is claimed is:

1. A rotary electric machine, comprising:
an annular stator comprising a plurality of stator cores, each stator core having a stator winding including a linear winding section extending linearly adjacent the stator core in an axial direction of the annular stator to a terminal portion, each stator core including a coil bobbin and an insulating paper; and
each of the linear winding sections having an end portion supporting member for supporting the terminal portion of the linear winding section extending from the stator core,
the terminal portion of the stator winding extending substantially linearly in the axial direction of the annular stator to a terminal end of the terminal portion beyond the coil bobbin and the end portion supporting member,
wherein each of the end portion supporting members only partially surround the linear winding section.

2. A rotary electric machine according to claim 1 , wherein the end portion supporting member comprises a plurality of notch portions for supporting the terminal portion, the plurality of notch portions being provided at different positions in a radial direction of the annular stator.

3. A rotary electric machine according to claim 2 , wherein the end portion supporting member is structured separately from the coil bobbin.

4. A rotary electric machine according to claim 2 ,
wherein the end portion supporting member is structured integrally with the coil bobbin, and
wherein the end portion supporting member is structured so as to be movable between an upright position during a winding process and a winding end portion supporting position after the winding process.

5. A rotary electric machine according to claim 2 , further comprising a connection plate which projects above the coil bobbin when viewed from the axial direction of the annular stator, the connection plate comprising a connection portion provided on substantially the same axial direction of the annular stator.

6. A rotary electric machine according to claim 5 , further comprising a neutral line which is disposed on the connection plate, the neutral line being connected to any one of a winding starting end portion of the stator winding and the terminal portion of the stator winding.

7. A rotary electric machine according to claim 2 , wherein the stator winding has a cross section of a substantially circular shape.

8. A rotary electric machine according to claim 1 , wherein the end portion supporting member is structured separately from the coil bobbin.

9. A rotary electric machine according to claim 1 , further comprising a connection plate which projects above the coil bobbin when viewed from the axial direction of the annular stator, the connection plate comprising a connection portion provided on substantially the same axis as the axial direction of the annular stator.

10. A rotary electric machine according to claim 9 , further comprising a neutral line which is disposed on the connection plate, the neutral line being connected to any one of a winding starting end portion of the stator winding and the terminal portion of the stator winding.

11. A rotary electric machine according to claim 1 , wherein the stator winding has a cross section of a substantially circular shape.

12. A manufacturing method for a rotary electric machine,
the rotary electric machine comprising an annular stator comprising a plurality of stator cores, each stator core having a stator winding including a linear winding section extending linearly adjacent the stator core in an axial direction of the annular stator, each stator core including a coil bobbin and an insulating paper,
the manufacturing method comprising winding the stator winding on the stator core, the winding comprising:
supporting a portion corresponding to a terminal portion of the linear winding section extending from the stator core using an end portion supporting member; and
cutting the stator winding after the terminal portion is supported in the supporting of the portion corresponding to the terminal portion,
the terminal portion of the stator winding extending substantially linearly in the axial direction of the annular stator to a terminal end of the terminal portion beyond the coil bobbin and the end portion supporting member,
wherein each of the end portion supporting members only partially surround the linear winding section.

13. A rotary electric machine, comprising:
an annular stator comprising a plurality of stator cores, each stator core having a stator winding including a linear winding section extending linearly adjacent the stator core in an axial direction of the annular stator to a terminal portion, each stator core including a coil bobbin and an insulating paper; and
each of the linear winding sections having an end portion supporting member for supporting the terminal portion of the linear winding section extending from the stator core,
the terminal portion of the stator winding extending substantially linearly in the axial direction of the annular stator to a terminal end of the terminal portion beyond the coil bobbin and the end portion supporting member,
wherein the end portion supporting member is structured integrally with the coil bobbin, and
wherein the end portion supporting member is structured so as to be movable between an upright position during a winding process and a winding end portion supporting position after the winding process.

Assignees

• Kitta Yoshiaki
• Okamoto Shogo
• Mitsubishi Electric Corp

Inventors

• Kitta Yoshiaki
• Okamoto Shogo

Classifications

• H02K15/22

  Shaping or compacting conductors in slots or around salient poles (H02K15/28 takes precedence) · CPC title

• H02K3/46

  Fastening of windings on the stator or rotor structure · CPC title

• Y10T29/49009

  Dynamoelectric machine · CPC title

• H02K3/522 Primary

  for generally annular cores with salient poles · CPC title

• H02K15/0031

  Electricity · mapped topic