Method of synthesizing aluminum carbon nanotube materials for structural and conductor applications
US-2015381020-A1 · Dec 31, 2015 · US
Rotor and method for manufacturing rotor
US2016352200A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2016352200-A1 |
| Application number | US-201515117291-A |
| Country | US |
| Kind code | A1 |
| Filing date | Feb 4, 2015 |
| Priority date | Feb 28, 2014 |
| Publication date | Dec 1, 2016 |
| Grant date | — |
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Abstract
Official abstract text for this publication.
A rotor includes: conductors having a bar shape; a first end ring joined to one ends of the conductors by friction stir welding, at least a surface opposite to a surface from which the conductors extend being stirred by the friction stir welding; a second end ring joined to other ends of the conductors by friction stir welding, at least a surface opposite to a surface from which the conductors extend being stirred by the friction stir welding; and an iron core disposed between the first and the second end rings, having a cylindrical shape, and including a plurality of insertion holes through which the respective conductors are insertable in a central axis direction of the iron core.
First claim
Opening claim text (preview).
1 . A rotor comprising: a plurality of conductors having a bar shape; a first end ring joined to one ends of the conductors by friction stir welding, at least a surface opposite to a surface from which the conductors extend being stirred by the friction stir welding; a second end ring joined to other ends of the conductors by friction stir welding, at least a surface opposite to a surface from which the conductors extend being stirred by the friction stir welding; and an iron core disposed between the first and the second end rings, having a cylindrical shape, and including a plurality of insertion holes through which the respective conductors are insertable in a central axis direction of the iron core. 2 . The rotor according to claim 1 , wherein the first and the second end rings are stirred by the friction stir welding. 3 . A method for manufacturing a rotor including a plurality of conductors having a bar shape, a cylindrical iron core including a plurality of insertion holes through which the respective conductors are insertable, and first and second end rings that are joined to respective ends of the conductors, the method comprising: a friction-stir-welding step of joining the conductors and a base by friction stir welding with end portions of the conductors housed in the base, such that the base includes the cylindrical iron core in a central axis direction of the iron core; and a forming step of forming the end rings by cutting the base such that at least a surface opposite to a surface from which the conductors extend, out of surfaces of the base that have been subjected to the friction-stir-welding step, becomes a surface stirred by the friction stir welding. 4 . The method for manufacturing a rotor according to claim 3 , wherein the friction-stir-welding step joins the base and the conductors the friction stir welding, the base being made of a material identical to a material of the conductors, after inserting the ends of the conductors into insertion holes formed in the base. 5 . The method for manufacturing a rotor according to claim 3 , wherein the friction-stir-welding step joins the base and the conductors the friction stir welding, the base being made of a material different from a material of the conductors, after fitting the ends of the conductors into recesses formed in the base.
Assignees
Inventors
Classifications
Machines characterised by numerical values, ranges, mathematical expressions or similar information · CPC title
using a non-consumable tool, e.g. friction stir welding · CPC title
Electric or electronic devices · CPC title
- H02K15/023Primary
Cage rotors · CPC title
Electricity · mapped topic
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Frequently asked questions
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- What does patent US2016352200A1 cover?
- A rotor includes: conductors having a bar shape; a first end ring joined to one ends of the conductors by friction stir welding, at least a surface opposite to a surface from which the conductors extend being stirred by the friction stir welding; a second end ring joined to other ends of the conductors by friction stir welding, at least a surface opposite to a surface from which the conductors …
- Who is the assignee on this patent?
- Nhk Spring Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification H02K15/023. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Thu Dec 01 2016 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). 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).