Rotating electrical machine
US-12136854-B2 · Nov 5, 2024 · US
Method for manufacturing an inner rotor for a rotary electric machine
US8935845B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8935845-B2 |
| Application number | US-201013386613-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jul 21, 2010 |
| Priority date | Jul 22, 2009 |
| Publication date | Jan 20, 2015 |
| Grant date | Jan 20, 2015 |
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- Title
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Abstract
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A method for manufacturing an inner rotor for a rotary electric machine, the rotor comprising a plurality of pole pieces surrounding a shaft, each pole piece being made from a stack of metal sheets ( 3 ) made of magnetic material, the pole pieces delimiting recesses between them for permanent magnets. The method comprises, in succession the steps of cutting blanks ( 33 ) each grouping together n metal sheets ( 3 ), “n” being the number of poles of the rotor, the n metal sheets of a blank being held together by temporary bridges ( 35 ) straddling the recesses, at least two bridges each comprising an outer lug ( 36 ), stacking the blanks while keeping them aligned via the outer lugs, immobilizing the stack of blanks, and eliminating all the temporary bridges in order to free up the radial access to the recesses.
First claim
Opening claim text (preview).
The invention claimed is: 1. A method for manufacturing an inner rotor for a rotary electric machine, the rotor comprising a plurality of pole pieces surrounding a shaft, each pole piece being made from a stack of metal sheets made of magnetic material, the pole pieces delimiting recesses between them for permanent magnets, said method comprising, in succession, the steps of: cutting blanks, each grouping together n metal sheets, “n” being the number of poles of the rotor, the n m…
Assignees
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Classifications
Electricity · mapped topic
- H02K1/2773Primary
Electricity · mapped topic
Electricity · mapped topic
Electricity · mapped topic
Cross-Sectional Technologies · mapped topic
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Frequently asked questions
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- What does patent US8935845B2 cover?
- A method for manufacturing an inner rotor for a rotary electric machine, the rotor comprising a plurality of pole pieces surrounding a shaft, each pole piece being made from a stack of metal sheets ( 3 ) made of magnetic material, the pole pieces delimiting recesses between them for permanent magnets. The method comprises, in succession the steps of cutting blanks ( 33 ) each grouping together …
- Who is the assignee on this patent?
- Blanc Maeick, Vedy Bertrand, Michelin & Cie, and 1 more
- What technology area does this patent fall under?
- Primary CPC classification H02K1/2773. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Jan 20 2015 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).