Coil winding component and rotary electric machine

Patent metadata

Field	Value
Publication number	US-10530211-B2
Application number	US-201815937941-A
Country	US
Kind code	B2
Filing date	Mar 28, 2018
Priority date	Mar 31, 2017
Publication date	Jan 7, 2020
Grant date	Jan 7, 2020

Abstract

An insulator of a coil winding component constituting part of a rotary electric machine is resin molded integrally with a divided iron core. A first accommodating groove in which a coil terminal wire can be arranged is formed on an outer end surface of a wiring member of the insulator. A plurality of recesses are formed in a circumferential direction of a stator core on a groove bottom surface of the first accommodating groove. Further, a rib, which supports the coil terminal wire that is arranged in the first accommodating groove, is disposed between the mutually adjacent recesses.

First claim

What is claimed is:

1. A coil winding component being equipped with a divided iron core, and a resin insulator, which is resin molded integrally with the divided iron core in surrounding relation to a portion of the divided iron core, wherein a stator core of a stator is constituted by arranging a plurality of the divided iron cores in an annular shape, and a coil is capable of being wound via the insulator around a tooth portion of the divided iron core, and further wherein:
the insulator includes a wiring member, which is disposed so as to cover a yoke portion of the divided iron core from an axial direction of the stator core;
an accommodating groove, which extends along a circumferential direction of the stator core, and in which a coil terminal wire drawn out from the coil can be arranged, is formed on an outer end surface of the wiring member in a radial outward direction of the stator core;
a plurality of recesses are formed in the circumferential direction of the stator core on a groove bottom surface of the accommodating groove; and
a rib, which supports the coil terminal wire that is arranged in the accommodating groove, is disposed between mutually adjacent recesses in the circumferential direction of the stator core.

2. The coil winding component according to claim 1 , wherein a supporting surface of the rib, which is oriented in a radial outward direction of the stator core, extends along the circumferential direction of the stator core, and is positioned on a same circumference that passes through the groove bottom surface of the accommodating groove.

3. The coil winding component according to claim 1 , wherein a width dimension of the rib along the circumferential direction of the stator core is substantially the same as a width dimension of each of the recesses along the circumferential direction of the stator core.

4. The coil winding component according to claim 1 , wherein rounded surfaces are provided on opening edge portions of the recesses.

5. The coil winding component according to claim 4 , wherein a width dimension of the rib is greater than or equal to two times a radius of the rounded surfaces.

6. A rotary electric machine equipped with a stator in which a plurality of divided core members are arranged in an annular shape;
each of the divided core members comprising:
the coil winding component according to claim 1 ; and
a coil wound around an insulator of the coil winding component;
wherein a coil terminal wire is arranged inside an accommodating groove of each of the coil winding components,
the coil winding component being equipped with a divided iron core, and the insulator, which is resin molded
integrally with the divided iron core in surrounding relation to a portion of the divided iron core, wherein a stator core of a stator is constituted by arranging a plurality of the divided iron cores in an annular shape, and the coil is capable of being wound via the insulator around a tooth portion of the divided iron core, and further wherein:
the insulator includes a wiring member, which is disposed so as to cover a yoke portion of the divided iron core from an axial direction of the stator core;
the accommodating groove, which extends along a circumferential direction of the stator core, and in which the coil terminal wire drawn out from the coil can be arranged, is formed on an outer end surface of the wiring member in a radial outward direction of the stator core;
a plurality of recesses are formed in the circumferential direction of the stator core on a groove bottom surface of the accommodating groove; and
a rib, which supports the coil terminal wire that is arranged in the accommodating groove, is disposed between mutually adjacent recesses in the circumferential direction of the stator core.

7. The rotary electric machine according to claim 6 , wherein a supporting surface of the rib, which is oriented in a radial outward direction of the stator core, extends along the circumferential direction of the stator core, and is positioned on a same circumference that passes through the groove bottom surface of the accommodating groove.

8. The rotary electric machine according to claim 6 , wherein a width dimension of the rib along the circumferential direction of the stator core is substantially the same as a width dimension of each of the recesses in the circumferential direction of the stator core.

9. The rotary electric machine according to claim 6 , wherein rounded surfaces are provided on opening edge portions of the recesses.

10. The rotary electric machine according to claim 9 , wherein a width dimension of the rib is greater than or equal to two times a radius of the rounded surfaces.

Assignees

• Honda Motor Co Ltd

Inventors

• Kitamura Kenji
• Takahashi Tomotsugu

Classifications

• H02K2203/12

  Machines characterised by the bobbins for supporting the windings · CPC title

• H02K3/522

  for generally annular cores with salient poles · CPC title

• H02K2213/03

  Machines characterised by numerical values, ranges, mathematical expressions or similar information · CPC title

• H02K1/148 Primary

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

• H02K15/022

  with salient poles · CPC title