Motor apparatus having improved connector unit
US-2017207686-A1 · Jul 20, 2017 · US
Permanent magnet motor
US9130442B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9130442-B2 |
| Application number | US-201213360259-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jan 27, 2012 |
| Priority date | Jan 27, 2011 |
| Publication date | Sep 8, 2015 |
| Grant date | Sep 8, 2015 |
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Abstract
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An electric motor includes a stator and a rotor rotatably installed in the stator. The stator has a housing and a plurality of permanent magnets. The outer diameter of the housing is less than 40 mm and the ratio of the maximum thickness of the magnets in the radial direction of the rotor to the diameter of the rotor is in the range of 1:7 to 1:50.
First claim
Opening claim text (preview).
The invention claimed is: 1. A permanent magnet motor comprising: a stator having a housing with a cylindrical configuration and a plurality of magnets installed at an inner surface of the housing; and a rotor installed in the stator and having a rotor core, wherein the housing defines an outer diameter at a location corresponding to a location of the rotor core, the outer diameter of the housing is less than 40 mm and a ratio of maximum thickness of the magnets in radial direct…
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Classifications
Electricity · mapped topic
- H02K23/04Primary
Electricity · mapped topic
Electricity · mapped topic
Operations & Transport · mapped topic
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Frequently asked questions
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- What does patent US9130442B2 cover?
- An electric motor includes a stator and a rotor rotatably installed in the stator. The stator has a housing and a plurality of permanent magnets. The outer diameter of the housing is less than 40 mm and the ratio of the maximum thickness of the magnets in the radial direction of the rotor to the diameter of the rotor is in the range of 1:7 to 1:50.
- Who is the assignee on this patent?
- Lau James Ching Sik, Cheung Chun Kit, Wong Duncan Yiu Lung, and 1 more
- What technology area does this patent fall under?
- Primary CPC classification H02K23/04. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Sep 08 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).