Armature, armature manufacturing method, and rotating electrical device

Patent metadata

Field	Value
Publication number	US-9806576-B2
Application number	US-201414492075-A
Country	US
Kind code	B2
Filing date	Sep 22, 2014
Priority date	Sep 30, 2013
Publication date	Oct 31, 2017
Grant date	Oct 31, 2017

Abstract

An armature includes plural core configuration members and plural insulators integrated with the core configuration members, each insulator including a coupling portion that couples a pair of insulation portions. The armature includes plural coil wires, each including a pair of wound portions wound onto respective core configuration members, and a crossing wire connecting the pair of wound portions. Plural armature configuration units are configured independently by integrating a pair of the core configuration members with each insulator and winding the coil wire onto the pair of core configuration members. Plural armature configuration sections are configured by combining two armature configuration units adjacent in the circumferential direction. In each armature configuration section, the coupling portion and the crossing wire of one armature configuration unit are side by side with the coupling portion and crossing wire of the other armature configuration units along a direction orthogonal to an axial direction of the armature configuration section.

First claim

What is claimed is:

1. An armature comprising:
a plurality of core configuration members that configure an armature core and that are divided in a circumferential direction of the armature core;
a plurality of insulators, each of which includes a pair of insulation portions integrated with the core configuration members, and a coupling portion that couples the pair of insulation portions together; and
a plurality of coil wires, each of which includes a pair of wound portions that have been wound onto the respective core configuration members with the insulation portions interposed between the core configuration members and the wound portions, and a crossing wire that connects together the pair of wound portions, wherein:
a plurality of armature configuration units are configured independently of each other, each of the armature configuration units comprising a pair of the core configuration members that lie on different sides of an axis of the armature from each other, connected by one of the plurality of insulators, wherein a respective coil wire is wound onto the pair of core configuration members,
the plurality of armature configuration units configure a plurality of armature configuration sections, wherein each armature configuration section is configured by combining two of the armature configuration units that are adjacent in the circumferential direction,
in each of the plurality of armature configuration sections, the coupling portion of the insulator and the crossing wire of one of the armature configuration units are arranged side by side with the coupling portion of the insulator and the crossing wire of another of the armature configuration units along a direction orthogonal to an axial direction of the armature configuration section, the crossing wire of the one of the armature configuration units and the crossing wire of the other of the armature configuration units being substantially in a same plane, and
in each of the plurality of armature configuration sections, the crossing wire of the one of the armature configuration units does not intersect with the crossing wire of the other of the armature configuration units.

2. The armature of claim 1 , wherein:
the coupling portion is formed from an insulating material, and
the insulation portion and the coupling portion are integrally formed.

3. The armature of claim 1 , wherein:
in each of the plurality of armature configuration sections, the coupling portion and the crossing wire of one of the armature configuration units, and the coupling portion and the crossing wire of the other of the armature configuration units are provided separately on one side and the other side with respect to an axial center of the armature configuration section.

4. The armature of claim 3 , wherein:
in each of the armature configuration sections, pairs of the insulators of two of the combined armature configuration units are disposed symmetrically about a plane.

5. The armature of claim 1 , wherein:
in each of the armature configuration units, a pair of the core configuration members is disposed so as to leave a gap equivalent to a length of at least one core configuration member in the circumferential direction of the armature core between the respective core configuration members.

6. The armature of claim 1 , wherein:
an engaging portion and an engaged portion are provided at each of the plurality of core configuration members, and
the plurality of core configuration members are coupled together in a ring shape by engagement of the adjacent engaging portions and engaged portions in the circumferential direction of the armature core.

7. The armature of claim 6 , wherein:
a guide projection is provided to at a portion of the insulator connecting between the insulation portion and the coupling portion, and
an end portion of the crossing wire is positioned between the engaging portion and the engaged portion formed at both side portions of the core configuration member by being guided by the guide projection.

8. The armature of claim 7 , wherein:
the crossing wires pass to an inner side of inner radial portions of the plurality of core configuration members.

9. The armature of claim 1 , wherein:
in each of the armature configuration sections, a pair of the coupling portions of two of the combined armature configuration units forms a ring shape.

10. The armature of claim 1 , wherein:
the coupling portions are formed in circular arc shapes along inner radial portions of the plurality of core configuration members.

11. The armature of claim 1 , wherein each of the coupling portions includes:
a guide portion that supports the crossing wire from the radial direction inside of the coupling portion; and
a restriction portion that restricts movement of the crossing wire in an axial direction of the armature.

12. The armature of claim 1 , wherein:
the plurality of armature configuration sections are assembled together along the axial direction of the armature configuration section;
the crossing wire in the armature configuration section of an intermediate layer is disposed between the coupling portions of the armature configuration sections of an upper layer and a lower layer of the plurality of armature configuration sections.

13. The armature of claim 1 , wherein:
terminal end portions of the plurality of coil wires are disposed at a side opposite, in the axial direction of the plurality of armature configuration sections, to a coupling portion side.

14. A rotating electrical device comprising the armature of claim 1 .

15. The armature of claim 1 , wherein:
assuming that a number of the plurality of core configuration members is n, in each of the plurality of armature configuration units, one of the core configuration members is disposed with respect to the other of the core configuration members at a mechanical angle in a range of (360°/n)×2 or greater and less than 180°, and
in the armature configuration units that configure the same phase out of the plurality of armature configuration units, the coupling portion and the crossing wire of one of the armature configuration units are arranged side by side with the coupling portion and the crossing wire of the other of the armature configuration units along a direction orthogonal to an axial direction of the plurality of armature configuration units.

16. An armature comprising:
a plurality of core configuration members that configure an armature core and that are divided in a circumferential direction of the armature core;
a plurality of insulators, each of which includes a pair of insulation portions integrated with the core configuration members, and a coupling portion that couples the pair of insulation portions together; and
a plurality of coil wires, each of which includes a pair of wound portions that have been wound onto the respective core configuration members with the insulation portions interposed between the core configuration members and the wound portions, and a crossing wire that connects together the pair of wound portions, wherein:
a plurality of armature configuration units are configured independently of each other by integrating a pair of the core configuration members with each of the plurality of insulators and winding the respective coil wire onto the pair of core configuration members,
the plurality of armature configuration units configure a plurality of armature configuration sections by combining two of the armature configuration units that are adjacent in the circumferential direction,
in each of the plurality of armature configuration section

Assignees

• Asmo Co Ltd

Inventors

• Yoshikawa Tetsuji
• Seki Akihiko

Classifications

• H02K3/522

  for generally annular cores with salient poles · CPC title

• H02K2203/06

  Machines characterised by the wiring leads, i.e. conducting wires for connecting the winding terminations · CPC title

• H02K1/148 Primary

  Sectional cores (H02K1/141 takes precedence) · CPC title

• H02K15/095

  by laying conductors around salient poles · CPC title

• H02K3/345 Primary

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