Stator manufacturing method and apparatus
US-10673310-B2 · Jun 2, 2020 · US
Twisting and bending device
US11038407B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11038407-B2 |
| Application number | US-201916357478-A |
| Country | US |
| Kind code | B2 |
| Filing date | Mar 19, 2019 |
| Priority date | Mar 22, 2018 |
| Publication date | Jun 15, 2021 |
| Grant date | Jun 15, 2021 |
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- Title
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- Abstract
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Abstract
Official abstract text for this publication.
A hollow portion is formed in a holding jig. A first projection protrudes from a first inner side wall of the hollow portion. As the holding jig rotates to twist and bend a leg portion of a conductor, the projection bites into the leg portion.
First claim
Opening claim text (preview).
What is claimed is: 1. A twisting and bending device that twists and bends an end part of a conductor protruding from a slot of a stator core, comprising: a holding jig provided with a hollow portion into which the end part of the conductor is inserted; and a driving unit comprising a rotating shaft configured to move the holding jig in a circumferential direction and in an axial direction relative to the stator core; wherein: at least one projection configured to bite into the end part of the conductor is formed on an inner side wall at a starting distance from an opening edge of the hollow portion, the end part of the conductor coming into contact with the inner side wall, and the at least one projection projects toward an inside of the hollow portion so that the hollow portion is narrowed by the at least one projection, wherein the inner side wall extended from the opening edge of the hollow portion to an opposite end of the hollow portion. 2. The twisting and bending device according to claim 1 , wherein: the inner side wall includes a first inner side wall located on a side of a rotating direction in which the twisting and bending device is rotated by the driving unit along the circumferential direction relative to the stator core and a second inner side wall opposing the first inner side wall; and the projection is formed on the first inner side wall. 3. The twisting and bending device according to claim 2 , wherein a second projection configured to bite into the conductor is further formed on the second inner side wall. 4. The twisting and bending device according to claim 3 , wherein the second projection is formed at a position corresponding to a bending starting position of the conductor on the second inner side wall of the hollow portion. 5. The twisting and bending device according to claim 2 , wherein an inclined portion that widens toward an opening of the hollow portion is formed on the first inner side wall.
Assignees
Inventors
Classifications
- 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
- H02K15/0421Primary
and consisting of single conductors, e.g. hairpins · CPC title
the windings consisting of separate elements, e.g. bars, segments or half coils · CPC title
- H02K15/085Primary
by laying conductors into slotted stators · CPC title
Electricity · mapped topic
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Frequently asked questions
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- What does patent US11038407B2 cover?
- A hollow portion is formed in a holding jig. A first projection protrudes from a first inner side wall of the hollow portion. As the holding jig rotates to twist and bend a leg portion of a conductor, the projection bites into the leg portion.
- Who is the assignee on this patent?
- Honda Motor Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification H02K15/36. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Jun 15 2021 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 3 related publications on this page (citations in our corpus or others sharing the same primary CPC).