Rotating electrical machine and producing method of rotating electrical machine
US-2019013706-A1 · Jan 10, 2019 · US
Armature molded structure
US11239711B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11239711-B2 |
| Application number | US-201916692475-A |
| Country | US |
| Kind code | B2 |
| Filing date | Nov 22, 2019 |
| Priority date | Nov 26, 2018 |
| Publication date | Feb 1, 2022 |
| Grant date | Feb 1, 2022 |
How to read this patent
A practical reading order for non-experts. Skip the full description unless you need deep technical detail.
- Title
What the patent document calls the invention.
- Abstract
A short plain-language summary of the technical disclosure.
- Assignees and inventors
Who owns or filed the patent and who is credited as inventor.
- Key dates
Filing, priority, publication, and grant dates set the timeline.
- First independent claim
The legal scope of protection — read this for what is actually claimed.
- CPC / IPC classifications
Technology tags used to group this patent with similar filings.
- Citations and related patents
Prior art links and similar publications in this corpus.
Abstract
Official abstract text for this publication.
An armature molded structure includes a cylindrical iron core used for a molded structure of a motor armature; a winding; and molding resin, wherein the iron core includes first core sheets and second core sheets, the first core sheet includes first magnetic poles placed along a circumferential direction of the iron core, tip portions, on an inner peripheral side of the iron core, of adjacent first magnetic poles form a coupling portion coupling the adjacent first magnetic poles, the second core sheet includes second magnetic poles placed along the circumferential direction of the iron core, tip portions, on the inner peripheral side of the iron core, of adjacent second magnetic poles form a non-coupling portion separating the adjacent second magnetic poles, the first and second core sheets are laminated along a central axis direction of the iron core in such a manner that the coupling portions coincide with each other, the non-coupling portions coincide with each other, the coupling portion and the non-coupling portion coincide with each other, the winding is wound around the first and second magnetic poles of the laminated first and second core sheets, the first and second core sheets and the winding are molded with the molding resin, the non-coupling portion delimits an opening window portion in an inner peripheral surface of the iron core, and the opening window portion is filled with the molding resin.
First claim
Opening claim text (preview).
What is claimed is: 1. An armature molded structure comprising: a cylindrical iron core used for a molded structure of a motor armature; a winding; and molding resin, wherein the cylindrical iron core includes first core sheets and second core sheets, the first core sheet includes first magnetic poles placed along a circumferential direction of the cylindrical iron core, tip portions, on an inner peripheral side of the cylindrical iron core, of adjacent first magnetic poles form a coupling portion coupling the adjacent first magnetic poles, the second core sheet includes second magnetic poles placed along the circumferential direction of the cylindrical iron core, tip portions, on the inner peripheral side of the cylindrical iron core, of adjacent second magnetic poles form a non-coupling portion separating the adjacent second magnetic poles, the first and second core sheets are laminated along a central axis direction of the cylindrical iron core in such a manner that the coupling portions coincide with each other, the non-coupling portions coincide with each other, the coupling portion and the non-coupling portion coincide with each other, the winding is wound around the first and second magnetic poles of the laminated first and second core sheets, the first and second core sheets and the winding are molded with the molding resin, the non-coupling portion delimits an opening window portion in an inner peripheral surface of the cylindrical iron core, the opening window portion is filled with the molding resin, each end of the cylindrical iron core is provided with a ring-shaped resin molded end portion, an uneven surface structure is formed on an inner peripheral surface of the resin molded end portion, and a recess of the uneven surface structure forms a flow path for pouring resin into the opening window portion. 2. The armature molded structure according to claim 1 , wherein the uneven surface structure is intermittently provided in a circumferential direction on the inner peripheral surface of the resin molded end portion.
Assignees
Inventors
Classifications
Patent family
Related publications grouped by family.
External sources
Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US11239711B2 cover?
- An armature molded structure includes a cylindrical iron core used for a molded structure of a motor armature; a winding; and molding resin, wherein the iron core includes first core sheets and second core sheets, the first core sheet includes first magnetic poles placed along a circumferential direction of the iron core, tip portions, on an inner peripheral side of the iron core, of adjacent f…
- Who is the assignee on this patent?
- Sanyo Electric Co
- What technology area does this patent fall under?
- Primary CPC classification H02K1/148. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Feb 01 2022 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 7 related publications on this page (citations in our corpus or others sharing the same primary CPC).