Multi-tunnel electric motor/generator

Patent metadata

Field	Value
Publication number	US-10447103-B2
Application number	US-201715848540-A
Country	US
Kind code	B2
Filing date	Dec 20, 2017
Priority date	Jun 28, 2015
Publication date	Oct 15, 2019
Grant date	Oct 15, 2019

Abstract

Disclosed are various embodiments for a motor/generator where the stator is a coil assembly and the rotor is a magnetic toroidal cylindrical tunnel or where the rotor is a coil assembly and the stator is a magnetic toroidal cylindrical tunnel, and where the magnetic toroidal cylindrical tunnel comprises magnets having a NNSS or SSNN pole configuration.

First claim

The invention claimed is:

1. A rotary motor/generator comprising:
a toroidal magnetic cylinder comprising a first magnetic tunnel segment radially arranged about an axial axis to form a circular path, wherein the first magnetic tunnel segment comprises:
a first side magnetic wall having a magnetic pole orientation that points generally towards an interior of the first magnetic tunnel segment;
a first opposing side magnetic wall having a magnetic pole orientation that points generally towards the interior of the first magnetic tunnel segment and positioned along the axial axis a predetermined distance from the first side magnetic wall;
a first inner magnetic wall generally spanning between the first side magnetic wall and the first opposing side magnetic wall in a generally axial direction and having a magnetic pole orientation that points generally towards the interior of the first magnetic tunnel segment;
a first outer magnetic wall generally spanning between the first side magnetic wall and the first opposing side magnetic wall in a axial direction, positioned radially away from the first inner magnetic wall, and having a magnetic pole orientation that points generally towards the interior of the first magnetic tunnel segment;
wherein like magnetic poles of magnets forming the first inner magnetic wall and magnets forming the first side magnetic wall are orientated in an opposite direction from the like poles of magnets forming the first outer magnetic wall and magnets forming the first opposing ring magnetic wall, and wherein at least one of the first inner magnetic wall and the first outer magnetic wall includes a slot configured to receive a support structure; and

a coil assembly positioned within the circular path and adapted to move relative to the toroidal magnetic cylinder, wherein the coil assembly is positioned relative to the toroidal magnetic cylinder by the support structure.

2. The rotary motor/generator of claim 1 , wherein the toroidal magnetic cylinder further comprises a second magnetic tunnel segment radially arranged about the axial axis positioned adjacent to the first magnetic tunnel segment to form a circular path, wherein the second magnetic tunnel segment comprises:
a second side magnetic wall having a magnetic pole orientation that points generally towards an interior of the second magnetic tunnel segment;
a second opposing side magnetic wall having a magnetic pole orientation that points generally towards the interior of the second magnetic tunnel segment and positioned along the axial axis the predetermined distance from the second side magnetic wall;
a second inner magnetic wall generally spanning between the second side magnetic wall and the second opposing side magnetic wall in a generally axial direction and having a magnetic pole orientation that points generally towards the interior of the second magnetic tunnel segment;
a second outer magnetic wall generally spanning between the second side magnetic wall and the second opposing side magnetic wall in a axial direction, positioned radially away from the second inner magnetic wall, and having a magnetic pole orientation that points generally towards the interior of the second magnetic tunnel segment;
wherein like magnetic poles of magnets forming the second inner magnetic wall and magnets forming the second side magnetic wall are orientated in an opposite direction from the like poles of magnets forming the second outer magnetic wall and magnets forming the second opposing ring magnetic wall, and
the like magnetic poles of magnets forming the second magnetic tunnel segment are orientated in an opposite direction from the like magnet poles of the magnets forming the first magnetic tunnel segment.

3. The rotary motor/generator of claim 1 , wherein the coil assembly further comprises:
a ring-like core;
a plurality of teeth radially positioned about the ring-like core and extending from the ring-like core to form a plurality of slots; and
a plurality of coil windings wherein each coil winding in the plurality of winding is positioned within a slot within the plurality of slots.

4. The rotary motor/generator of claim 1 , further comprising a back iron circuit generally surrounding the toroidal magnetic cylinder.

5. The rotary motor/generator of claim 4 , further comprising longitudinal grooves defined in the back iron circuit for positioning and supporting the magnets forming the first outer magnetic wall and the first inner magnetic wall.

6. The rotary generator/motor of claim 1 , further comprising a hub coupled to the coil assembly and a shaft coupled to the hub.

7. The rotary generator/motor of claim 1 , further comprising a hub coupled to the toroidal magnetic cylinder and a shaft coupled to the hub.

8. The rotary generator/motor of claim 1 , further comprising an exterior circumferential slot defined in the toroidal magnetic cylinder to allow for passage of a structural support and/or electrical conductors.

9. The rotary generator/motor of claim 1 , further comprising an interior circumferential slot defined in the toroidal magnetic cylinder to allow for passage of a structural support and/or electrical conductors.

10. The rotary generator/motor of claim 1 , further comprising a side circular slot defined in the toroidal magnetic cylinder to allow for passage of a structural support and/or electrical conductors.

11. The rotary generator/motor of any one of claims 8 through 10 , further comprising a means for preventing the magnetic flux forces within the interior of the tunnel from escaping through the slots.

12. The rotary generator/motor of claim 1 , further comprising:
a support ring coupled to the coil assembly and partially extending through the side circular slot;
a first end plate coupled to the support ring.

13. The rotary generator/motor of claim 12 , further comprising:
a shaft coupled to the toroidal magnetic cylinder;
a second end plate coupled rotatably coupled to the shaft;
a means for connecting the first end plate to the second end plate.

14. The rotary generator/motor of claim 1 , wherein the first inner magnetic wall, the first outer magnetic wall, the first ring magnetic wall and the first opposing ring magnetic wall may be formed from electromagnets.

15. The rotary generator/motor of claim 1 , wherein a tangential magnetic force is generated on all sides of individual coils in the plurality of coils when the individual coil is positioned within the first magnetic tunnel segment or second magnetic tunnel segment.

16. A method of producing mechanical rotation, the method characterized by: forming a first area of magnetic concentration within a first interior cavity defined by an first outer magnetic cylinder wall having a first magnetic pole facing the interior cavity, a first inner magnetic cylinder wall having a second magnetic pole facing the interior cavity, a first magnetic side wall having a third magnetic pole facing the interior cavity, and a first opposing magnetic side will having a fourth magnetic pole facing the interior cavity, wherein the first and third magnetic poles are of opposite polarities from the second and fourth magnetic poles; positioning a coil within the first interior cavity; applying a current in a first direction to the coil to cause the coil to rotate relative to the first interior cavity; coupling a longitudinal shaft to the coil such that as the coil rotates, the longitudinal shaft rotates; forming a second area of magnetic concentration within a second interior cavity positioned circumferentially adjacent to the first interior cavity defined b

Assignees

• Linear Labs Inc
• Linear Labs Llc

Inventors

• Hunstable Fred E

Classifications

• H02K21/125

  having an annular armature coil (H02K21/14 - H02K21/24 take precedence) · CPC title

• H02K1/145

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

• H02K21/22

  with magnets rotating around the armatures, e.g. flywheel magnetos · CPC title

• H02K1/30

  using intermediate parts, e.g. spiders · CPC title

• H02K3/12

  arranged in slots · CPC title