Permanent magnet synchronous electric machine

US9502933B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-9502933-B2
Application numberUS-201114235574-A
CountryUS
Kind codeB2
Filing dateAug 31, 2011
Priority dateAug 5, 2011
Publication dateNov 22, 2016
Grant dateNov 22, 2016

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  1. Title

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  2. Abstract

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  3. Assignees and inventors

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  4. Key dates

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  5. First independent claim

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  7. Citations and related patents

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Abstract

Official abstract text for this publication.

A permanent magnet synchronous electric machine includes a stator and a rotor. Multiple wire grooves are provided peripherally on the stator, coils are provided within the wire grooves, and a stator tooth is provided between adjacent wire grooves. Multiple magnetic groove sets are provided peripherally within the rotor, each of the magnetic groove sets includes at least two magnetic steel grooves, with permanent magnets placed within the magnetic steel grooves, and a magnetic tunnel formed between the magnetic steel grooves. Of two adjacent magnetic tunnels, an end of one magnetic tunnel is opposite a wire groove and an end of the other magnetic tunnel is opposite a stator tooth. The permanent magnet synchronous electric machine has a more steady output torque, and also reduces the noise and vibration provided during operation.

First claim

Opening claim text (preview).

What is claimed is: 1. A permanent magnet synchronous motor, comprising a stator and a rotor, wherein a plurality of wire grooves are provided in the stator along a circumferential direction of the stator, coils are provided in each of the wire grooves, and a stator tooth is provided between adjacent wire grooves; a plurality of magnetic groove sets are provided in the rotor along a circumferential direction of the rotor, each of the magnetic groove sets comprises at least two magn…

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What does patent US9502933B2 cover?
A permanent magnet synchronous electric machine includes a stator and a rotor. Multiple wire grooves are provided peripherally on the stator, coils are provided within the wire grooves, and a stator tooth is provided between adjacent wire grooves. Multiple magnetic groove sets are provided peripherally within the rotor, each of the magnetic groove sets includes at least two magnetic steel groov…
Who is the assignee on this patent?
Huang Hui, Hu Yusheng, Chen Dongsuo, and 6 more
What technology area does this patent fall under?
Primary CPC classification H02K1/2766. Mapped technology areas include Electricity.
When was this patent published?
Publication date Tue Nov 22 2016 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).