Ring for an electric machine

US10128717B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-10128717-B2
Application numberUS-201615210247-A
CountryUS
Kind codeB2
Filing dateJul 14, 2016
Priority dateJul 22, 2015
Publication dateNov 13, 2018
Grant dateNov 13, 2018

How to read this patent

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  1. Title

    What the patent document calls the invention.

  2. Abstract

    A short plain-language summary of the technical disclosure.

  3. Assignees and inventors

    Who owns or filed the patent and who is credited as inventor.

  4. Key dates

    Filing, priority, publication, and grant dates set the timeline.

  5. First independent claim

    The legal scope of protection — read this for what is actually claimed.

  6. CPC / IPC classifications

    Technology tags used to group this patent with similar filings.

  7. Citations and related patents

    Prior art links and similar publications in this corpus.

Abstract

Official abstract text for this publication.

The present disclosure relates to a ring for a rotor of an electric machine as a support for a retaining ring and for cooling coils of the rotor. It is an object of the invention to provide measures for cooling coils of a rotor of an electric machine. Disclosed is a ring for an electric machine, the ring is connected between a retaining ring and coils wound around a rotor, whereas the ring is fabricated from a non-conductive material.

First claim

Opening claim text (preview).

The invention claimed is: 1. A ring for an electric machine, comprising: the ring, fabricated from a non-conductive material, connected between a retaining ring and coils wound around a rotor; and slots in the ring, wedge-shaped on radial cross-section of the ring, having a cavity deeper at outer ends of the slots than the cavity at inner ends of the slots. 2. The ring according to claim 1 , wherein the non-conductive material is glass fibre. 3. The ring according to claim 1 , wherein slots are formed in an outer face of the ring in an axial direction of the rotor. 4. The ring according to claim 3 , wherein the slots have a rectangular shape on the outer face of the ring and the slots are equidistant to each other. 5. The ring according to claim 1 , wherein the slots include ventilation holes to transport a cooling medium from an outside of the ring to an inside of the ring to the coils or from the inside of the ring from the coils to the outside of the ring. 6. The ring according to claim 1 , wherein sheet layers are arranged between the ring and the coils for electrical insulation. 7. Use of a ring according to claim 1 for a rotor of an electric machine.

Assignees

Inventors

Classifications

  • with channels or ducts for flow of cooling medium · CPC title

  • with channels or ducts for cooling medium between the conductors · CPC title

  • H02K1/28Primary

    Means for mounting or fastening rotating magnetic parts on to, or to, the rotor structures · CPC title

  • H02K3/51Primary

    applicable to rotors only · CPC title

  • between conductors or between conductor and core, e.g. slot insulation · CPC title

Patent family

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External sources

Frequently asked questions

Answers are generated from the same data shown on this page.

What does patent US10128717B2 cover?
The present disclosure relates to a ring for a rotor of an electric machine as a support for a retaining ring and for cooling coils of the rotor. It is an object of the invention to provide measures for cooling coils of a rotor of an electric machine. Disclosed is a ring for an electric machine, the ring is connected between a retaining ring and coils wound around a rotor, whereas the ring is f…
Who is the assignee on this patent?
General Electric Technology Gmbh
What technology area does this patent fall under?
Primary CPC classification H02K1/28. Mapped technology areas include Electricity.
When was this patent published?
Publication date Tue Nov 13 2018 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).