IP Library Granted Patent US 10,931,157
Granted Patent B2
US 10,931,157 · App. 15/972,894 · Granted Feb 23, 2021

Unitary structure having magnetic and non-magnetic phases

Inventors: Francis Johnson (Clifton Park, NY); Mohamed Osama (Bayern, DE); Francesco Papini (Como, IT)
Assignee: General Electric Company
H02K1/2793H02K1/145H02K15/03H02K15/12H02K2201/12
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Quick Facts
Patent No.
US 10,931,157
App. No.
15/972,894
Granted
Feb 23, 2021
Kind
B2
Abstract

A magnetic component having a unitary structure, a transverse flux electric machine having the magnetic component, and a method of making the magnetic component are disclosed. The unitary structure of the magnetic component includes a magnetic region and a non-magnetic region. The magnetic region includes a magnetic phase and an electrically insulating phase. The non-magnetic region includes a non-magnetic phase. The magnetic phase includes a metallic material and the non-magnetic phase includes a nitrogenated metallic material formed by a controlled nitrogenation of the metallic material.

Claims (23)

1. A magnetic component for a stator pole configured to transfer magnetic flux in an axially skewed direction around a stator coil of a transverse electric machine, said magnetic component comprising:

a unitary structure comprising a magnetic region and a non-magnetic region, wherein

the magnetic region comprises a magnetic phase and an electrically insulating phase, the electrically insulating phase disposed in a plane parallel to the magnetic flux in the magnetic phase during an operation of the transverse electric machine; and

the non-magnetic region comprises a non-magnetic phase, and wherein the magnetic phase comprises a metallic material and the non-magnetic phase comprises a nitrogenated metallic material formed by controlled nitrogenation of the metallic material.

2. The magnetic component of claim 1 , wherein the non-magnetic phase comprises a nitrogen content that is greater than 0.1 weight percentage of the nitrogenated metallic material.

3. The magnetic component of claim 1 , wherein the nitrogenated metallic material is formed by in situ transformation of the metallic material from a magnetic state to a non-magnetic state through the controlled nitrogenation.

4. The magnetic component of claim 1 , wherein the electrically insulating phase comprises air, an inert gas, an electrically insulating solid material, or any combinations thereof.

5. The magnetic component of claim 4 , wherein the air, inert gas, or a combination of the air and the inert gas is disposed in a gap in the magnetic phase.

6. The magnetic component of claim 4 , wherein the electrically insulating solid material is disposed in particle boundaries of the metallic material.

7. The magnetic component of claim 4 , wherein both the magnetic region and the non-magnetic region comprise the electrically insulating phase, wherein the electrical insulating phase comprises the electrically insulating solid material.

8. The magnetic component of claim 1 , wherein magnetic and non-magnetic regions are dispersed in the magnetic component such that the magnetic and non-magnetic regions are adjacently disposed to one another in the unitary structure of the magnetic component.

9. The magnetic component of claim 8 , wherein the magnetic region is in physical contact with other magnetic regions, non-magnetic regions, or both.

10. A transverse electric machine, comprising:

a stator pole configured to transfer magnetic flux in an axially skewed direction around a stator coil, wherein the stator pole has a unitary structure comprising a magnetic region and a non-magnetic region, and wherein

the magnetic region comprises a magnetic phase and an electrically insulating phase, the electrically insulating phase disposed in a plane parallel to the magnetic flux in the magnetic phase during an operation of the transverse electric machine; and

the non-magnetic region comprises a non-magnetic phase; and wherein the magnetic phase comprises a metallic material and the non-magnetic phase comprises a nitrogenated metallic material formed by controlled nitrogenation of the metallic material.

11. The transverse electric machine of claim 10 , wherein the non-magnetic phase comprises a nitrogen content that is greater than 0.1 weight percentage of the nitrogenated metallic material.

12. The transverse electric machine of claim 10 , wherein the nitrogenated metallic material is formed by in situ transformation of the metallic material from a magnetic state to a non-magnetic state through the controlled nitrogenation.

13. The transverse electric machine of claim 10 , wherein the electrically insulating phase comprises air, an inert gas, an electrically insulating solid material, or any combinations thereof.

14. The transverse electric machine of claim 13 , wherein the air, inert gas, or a combination of the air and the inert gas is disposed in a plane parallel to the magnetic flux in the magnetic phase during an operation of the transverse electric machine.

15. The transverse electric machine of claim 13 , wherein the electrically insulating solid material is disposed in particle boundaries of the metallic material.

16. The transverse electric machine of claim 10 , wherein both the magnetic region and the non-magnetic region comprise the electrically insulating phase, wherein the electrical insulating phase comprises the electrically insulating solid material.

17. The transverse electric machine of claim 10 , wherein magnetic and non-magnetic regions are dispersed in the stator pole such that the magnetic and non-magnetic regions are adjacently disposed to one another in the unitary structure of the stator pole.

Assignments (3)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 5, 2019
From: JOHNSON, FRANCIS; OSAMA, MOHAMED; PAPINI, FRANCESCO
To: GENERAL ELECTRIC COMPANY
Reel/Frame 049384/0411 →
CONFIRMATORY LICENSE Recorded Sep 10, 2018
From: GENERAL ELECTRIC GLOBAL RESEARCH CTR
To: UNITED STATES DEPARTMENT OF ENERGY
Reel/Frame 047036/0467 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 27, 2018
From: JOHNSON, FRANCIS; OSAMA, MOHAMED; PAPINI, FRANCESCO
To: GENERAL ELECTRIC COMPANY
Reel/Frame 046709/0675 →
Continuity (1)
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Cited By (1)
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