Device and method for shaping wire ends in a circumferential direction
US-2020395825-A1 · Dec 17, 2020 · US
Manufacturing method for rotating electric machine
US10587171B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10587171-B2 |
| Application number | US-201414468647-A |
| Country | US |
| Kind code | B2 |
| Filing date | Aug 26, 2014 |
| Priority date | Aug 29, 2013 |
| Publication date | Mar 10, 2020 |
| Grant date | Mar 10, 2020 |
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- Title
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Abstract
Official abstract text for this publication.
A manufacturing method for a rotating electric machine, in which the distal end portions of a plurality of coil ends, which are projected from slots of a stator core of a rotating electric machine and which are arranged in the radial direction of the stator core to form a plurality of layers, are held, and the coil ends are twisted and bent while moving the distal end portions in the circumferential direction. Neutral lines for bending the coil ends are different for each layer, and the neutral lines for the bending are positioned on farther outer sides for coil ends of farther outer layers.
First claim
Opening claim text (preview).
What is claimed is: 1. A manufacturing method of a rotating electric machine, comprising: a step of holding end portions of each of a plurality of conductors, which are projected from slots of a stator core of the rotating electric machine and which are arranged in a radial direction of the stator core to form a plurality of layers, and twisting and bending the conductors while moving the end portions in a circumferential direction, wherein positions of neutral lines for bending and central lines in a width direction of the conductors are differed by tensile bending conductors of the plurality of conductors that form outer side layers of the plurality of layers in the radial direction and compressive bending conductors of the plurality of conductors that form inner side layers of the plurality of layers in the radial direction, and wherein the end portions of the conductors of each of the layers have same projecting heights before and after the twisting and bending. 2. The manufacturing method of a rotating electric machine according to claim 1 , wherein positions of the neutral lines for bending with respect to the central lines in the width direction of the conductors are different for each layer. 3. The manufacturing method of a rotating electric machine according to claim 2 , wherein the neutral lines for the bending are positioned on farther outer sides with respect to the central lines in the width direction for the conductors of the outer side layers. 4. The manufacturing method of a rotating electric machine according to claim 1 , wherein a tensile force or a compression force applied when twisting and bending is different for each of the plurality of layers of the conductors.
Assignees
Inventors
Classifications
Dynamoelectric machine · CPC title
- H02K15/0087Primary
Electricity · mapped topic
- H02K15/36Primary
Processes or apparatus for simultaneously twisting two or more open ends of hairpins after their insertion into the machine (for simultaneously twisting two or more hairpins prior to mounting into the machine H02K15/0428) · CPC title
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- What does patent US10587171B2 cover?
- A manufacturing method for a rotating electric machine, in which the distal end portions of a plurality of coil ends, which are projected from slots of a stator core of a rotating electric machine and which are arranged in the radial direction of the stator core to form a plurality of layers, are held, and the coil ends are twisted and bent while moving the distal end portions in the circumfere…
- Who is the assignee on this patent?
- Honda Motor Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification H02K15/0087. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Mar 10 2020 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).