System and method for an electric motor/generator with a multi-layer stator/rotor assembly

Patent metadata

Field	Value
Publication number	US-11277062-B2
Application number	US-202016997281-A
Country	US
Kind code	B2
Filing date	Aug 19, 2020
Priority date	Aug 19, 2019
Publication date	Mar 15, 2022
Grant date	Mar 15, 2022

Abstract

Disclosed are various embodiments for a new and improved electric motor/generator including a toroidal magnetic cylinder centered on the longitudinal axis, and a coil assembly including a first coil assembly support positioned within the toroidal magnetic cylinder, and a second coil assembly support positioned within the toroidal magnetic cylinder.

First claim

The invention claimed is:

1. An electric motor/generator comprising:
a longitudinal axis;
a toroidal magnetic cylinder centered on the longitudinal axis, the toroidal magnetic cylinder formed by
an outer cylindrical magnetic wall,
an inner cylindrical magnetic wall concentrically positioned within the outer cylindrical magnetic wall,
a first side magnetic wall positioned adjacent to one end of the outer cylindrical magnetic wall and to one end of the inner cylindrical magnetic wall,
a second side magnetic wall positioned adjacent to an opposing end of the outer cylindrical magnetic wall and to an opposing end of the inner cylindrical magnetic wall,

a coil assembly including
a first coil assembly support positioned within the toroidal magnetic cylinder, the first coil assembly support having a first circular core centered on the longitudinal axis, a first plurality of teeth angularly positioned around three sides of the first circular core, and a first circular indention formed on a remaining side of the first circular core;
a second coil assembly support positioned within the toroidal magnetic cylinder, the second coil assembly support having a second circular core centered on the longitudinal axis, a second plurality of teeth angularly positioned around three sides of the second circular core, and a second circular indention formed on a remaining side of the second circular core, wherein the first plurality of teeth are aligned with the second plurality of teeth;
a plurality of coils angularly positioned around the first core and around the second core and positioned between the individual teeth comprising the first plurality of teeth and the second plurality of teeth; and

a locking disc centered on the longitudinal axis and positioned between the first coil assembly support and the second coil assembly supports, the locking disc having engagement mechanisms to align and rotationally secure the first coil assembly support and the second coil assembly support together, wherein the locking disc is sized to partially fit within the first circular indention and the second circular indention.

2. The electric motor/generator of claim 1 , further comprising a shaft having a longitudinal center axis coinciding with the longitudinal axis and wherein the toroidal magnetic cylinder and coil assembly surround a portion of the shaft.

3. The electric motor/generator of claim 2 , wherein the locking disc includes a first shaft engagement mechanism configured to engage a second shaft engagement mechanism on the shaft, wherein the first and second engagement mechanisms engage each other to prevent rotational movement of the locking disc relative to the shaft.

4. The electric motor/generator of claim 1 , wherein the toroidal magnetic cylinder comprises a first cylindrical section having a NNNN magnetic pole orientation positioned adjacent to a second cylindrical section having a SSSS magnetic pole orientation.

5. The electric motor/generator of claim 1 , wherein the first coil assembly support and second coil assembly support prevent the locking disc from moving along the longitudinal axis relative to the shaft.

6. The electric motor/generator of claim 1 , wherein the first indention, the second indention, and the locking disc are sized so that an interior surface of the first coil assembly support contacts an interior surface of the second coil assembly support.

7. The electric motor/generator of claim 1 , wherein the first indention, the second indention, and the locking disc are sized so that an interior surface of the first coil assembly support is spaced away from an interior surface of the second coil assembly support.

8. The electric motor/generator of claim 1 , wherein an alignment of one of the first plurality of teeth with one of the second plurality of teeth forms an aligned tooth with a single angled side surface having a constant slope.

9. The electric motor/generator of claim 1 , further comprising:
the coil assembly including a third coil assembly support positioned within the toroidal magnetic cylinder, the third coil assembly support having a third circular core centered on the longitudinal axis, a third plurality of teeth angularly positioned around three sides of the third circular core, and a third circular indention formed on a remaining side of the third circular core, wherein the first plurality of teeth are aligned with the third plurality of teeth, and
a second locking disc centered on the longitudinal axis and positioned between the third coil assembly support and either the first or second coil assembly supports.

10. The electric motor/generator of claim 9 , wherein the plurality of coils are also angularly positioned around the third core and positioned between the individual teeth comprising the first plurality of teeth, the second plurality of teeth, and third plurality of teeth.

11. An electric motor/generator comprising:
a longitudinal axis;
a partial toroidal magnetic cylinder centered on the longitudinal axis, the toroidal magnetic cylinder including by
a first rotor,
a second rotor,
a third rotor,

a coil assembly including
a first coil assembly support positioned within the toroidal magnetic cylinder, the first coil assembly support having a first circular core centered on the longitudinal axis, a first plurality of teeth angularly positioned around three sides of the first circular core, and a first circular indention formed on a remaining side of the first circular core;
a second coil assembly support positioned within the toroidal magnetic cylinder, the second coil assembly support having a second circular core centered on the longitudinal axis, a second plurality of teeth angularly positioned around three sides of the second circular core, and a second circular indention formed on a remaining side of the second circular core, wherein the first plurality of teeth are aligned with the second plurality of teeth;
a plurality of coils angularly positioned around the first core and around the second core and positioned between the individual teeth comprising the first plurality of teeth and the second plurality of teeth; and

a locking disc centered on the longitudinal axis and positioned between the first coil assembly support and the second coil assembly supports, the locking disc having engagement mechanisms to align and rotationally secure the first coil assembly support and the second coil assembly support together, wherein the locking disc is sized to partially fit within the first circular indention and the second circular indention.

12. The electric motor/generator of claim 11 , wherein the toroidal magnetic cylinder further comprises a fourth rotor to create a magnetic tunnel and to complete the partial toroidal magnetic cylinder.

13. The electric motor/generator of claim 11 , further comprising a shaft having a longitudinal center axis coinciding with the longitudinal axis and wherein the toroidal magnetic cylinder and coil assembly surround a portion of the shaft.

14. The electric motor/generator of claim 13 , wherein the locking disc includes a first shaft engagement mechanism configured to engage a second shaft engagement mechanism on the shaft, wherein the first and second engagement mechanisms engage each other to prevent rotational movement of the locking disc relative to the shaft.

15. The electric motor/generator of claim 11 , wherein the toroidal magnetic cylinder comprises a first cylindrical section having a NNNN magnetic pole orientation positioned adjacent to a second cylindrical section having a SSSS magnetic pole orientation.

16. The el

Assignees

• Linear Labs Inc

Inventors

• Hunstable Fred E

Classifications

• H02K1/02

  characterised by the magnetic material · CPC title

• H02K21/227 Primary

  having an annular armature coil · CPC title

• H02K2201/12

  Transversal flux machines · CPC title

• H02K1/145 Primary

  having an annular coil, e.g. of the claw-pole type · CPC title

• H02K3/18

  Windings for salient poles · CPC title