Rotor and motor
US-2024388149-A1 · Nov 21, 2024 · US
Rotor of permanent magnet embedded motor, compressor, and refrigeration and air conditioning apparatus
US9178392B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9178392-B2 |
| Application number | US-201013816766-A |
| Country | US |
| Kind code | B2 |
| Filing date | Aug 27, 2010 |
| Priority date | Aug 27, 2010 |
| Publication date | Nov 3, 2015 |
| Grant date | Nov 3, 2015 |
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- Title
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- Abstract
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Abstract
Official abstract text for this publication.
A rotor of a permanent magnet embedded motor according to this invention includes: a rotor iron core formed by stacking a predetermined number of electromagnetic steel plates perforated in a predetermined shape; a plurality of permanent magnet insertion holes formed along an outer circumferential section of the rotor iron core; permanent magnet end gaps provided at both ends of the permanent magnet insertion hole; a permanent magnet inserted in the permanent magnet insertion hole; and a plurality of slits formed in an iron core section on the outer side of the permanent magnet insertion hole. The width in the radial direction of a slit thin section of each of the slits between the slit and the rotor iron core outer circumference gradually increases from an inter-electrode side toward a magnetic pole center and changes in a sine wave shape having a peak in the magnetic pole center.
First claim
Opening claim text (preview).
The invention claimed is: 1. A rotor of a permanent magnet embedded motor comprising: a rotor iron core formed by stacking a predetermined number of electromagnetic steel plates perforated in a predetermined shape; a plurality of permanent magnet insertion holes formed along an outer circumferential section of the rotor iron core; permanent magnet end gaps provided at both ends of the permanent magnet insertion hole; a permanent magnet inserted into the permanent magnet inse…
Assignees
Inventors
Classifications
- H02K1/276Primary
Electricity · mapped topic
- H02K1/2706Primary
Electricity · mapped topic
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Frequently asked questions
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- What does patent US9178392B2 cover?
- A rotor of a permanent magnet embedded motor according to this invention includes: a rotor iron core formed by stacking a predetermined number of electromagnetic steel plates perforated in a predetermined shape; a plurality of permanent magnet insertion holes formed along an outer circumferential section of the rotor iron core; permanent magnet end gaps provided at both ends of the permanent ma…
- Who is the assignee on this patent?
- Yabe Koji, Fujisue Yoshikazu, Yoshino Hayato, and 3 more
- What technology area does this patent fall under?
- Primary CPC classification H02K1/276. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Nov 03 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).