Rotating electric machine
US-2016352203-A1 · Dec 1, 2016 · US
Eddy current deceleration device
US12003160B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-12003160-B2 |
| Application number | US-202117904449-A |
| Country | US |
| Kind code | B2 |
| Filing date | Feb 10, 2021 |
| Priority date | Mar 6, 2020 |
| Publication date | Jun 4, 2024 |
| Grant date | Jun 4, 2024 |
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- Title
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- Abstract
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- Assignees and inventors
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- First independent claim
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Abstract
Official abstract text for this publication.
An eddy current deceleration device includes a rotor and a stator. The rotor includes a hub, a rotor body, and a spoke. The spoke has neutral axes. The first neutral axis is a neutral axis when the spoke is bent in a circumferential direction of the rotor body. The first neutral axis is positioned forward in a rotating direction of the rotor with respect to a center line of the spoke in the circumferential direction. The second neutral axis is a neutral axis when the spoke is bent in an axial direction of the rotor body. The second neutral axis is positioned on a rotor body side with respect to a center line of the spoke in the axial direction.
First claim
Opening claim text (preview).
The invention claimed is: 1. An eddy current deceleration device comprising: a rotor that includes a hub attached to a rotation shaft, a rotor body having a cylindrical shape, and a spoke extending from the hub to the rotor body and being fixed to one end portion of the rotor body in an axial direction, the rotor being configured to rotate with the rotation shaft; and a stator that is disposed inside or outside of the rotor body, wherein the spoke includes: a first neutral axis that is positioned forward in a rotating direction of the rotor with respect to a center line of the spoke in a circumferential direction of the rotor body, the first neutral axis being a neutral axis when the spoke is bent in the circumferential direction; and a second neutral axis that is positioned on a rotor body side with respect to a center line of the spoke in the axial direction, the second neutral axis being a neutral axis when the spoke is bent in the axial direction. 2. The eddy current deceleration device according to claim 1 , wherein a surface of the spoke on the rotor body side is a flat surface that is perpendicular to the axial direction. 3. The eddy current deceleration device according to claim 2 , wherein the spoke has a transverse section in which a length in the axial direction decreases as the transverse section extends rearward in the rotating direction. 4. The eddy current deceleration device according to claim 1 , wherein the spoke has a transverse section in which a length in the axial direction decreases as the transverse section extends rearward in the rotating direction.
Assignees
Inventors
Classifications
- H02K49/043Primary
with a radial airgap · CPC title
- F16D63/002Primary
Brakes with direct electrical or electro-magnetic actuation · CPC title
- B60T1/06Primary
acting otherwise than on tread, e.g. employing rim, drum, disc, or transmission {or on double wheels} · CPC title
of the asynchronous induction type · CPC title
of the permanent-magnet type · CPC title
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Frequently asked questions
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- What does patent US12003160B2 cover?
- An eddy current deceleration device includes a rotor and a stator. The rotor includes a hub, a rotor body, and a spoke. The spoke has neutral axes. The first neutral axis is a neutral axis when the spoke is bent in a circumferential direction of the rotor body. The first neutral axis is positioned forward in a rotating direction of the rotor with respect to a center line of the spoke in the cir…
- Who is the assignee on this patent?
- Nippon Steel Corp
- What technology area does this patent fall under?
- Primary CPC classification H02K49/043. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Jun 04 2024 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 3 related publications on this page (citations in our corpus or others sharing the same primary CPC).