Enhanced Flux-Density Magnet

• US 20170098972A1
• Filed: 10/01/2015
• Published: 04/06/2017
• Est. Priority Date: 10/01/2015
• Status: Active Grant

• Current Assignee: Vanntec, LLC
• Original Assignee: Vanntec, LLC
• Inventors: Vann, Charles Stuart
• Granted Patent: US 9,960,647 B2
• Time in Patent Office: Days
• CPC Class Codes: H01F 7/021 Construction of PM H01F7/0278 takes precedence; PM compositions H01F1/032
• CPC Class Codes: H01F 7/0273 Magnetic circuits with PM for magnetic field generation
• CPC Class Codes: H02K 1/02 characterised by the magnetic material
• CPC Class Codes: H02K 1/2773 consisting of tangentially magnetized radial magnets

Abstract

One embodiment of an enhanced flux-density magnet comprises a magnetic material with two magnetic poles and one magnetic pole-area smaller than the other magnetic pole-area. Because the magnetic field at both pole-areas is equal but the magnetic pole-areas are unequal, the magnetic flux-density is proportionally greater at the magnetic pole with a smaller area than the magnetic pole with the larger area and greater than if the magnetic pole-areas were equal.

Claims

1. An electrical motor or generator, comprising:

a plurality of magnets, wherein,

a sum of magnetic pole-areas of a first pole is smaller than the sum of magnetic pole-areas of a second pole,

a density of a magnetic field of the first pole is greater than a density of the magnetic field of the second pole, and,

one or more coils of wire;

a coil support structure; and

a magnet support structure wherein the first pole of the plurality of magnets are near contiguous with one of the one or more coils of wire, wherein, the one of the one or more coils of wire and the plurality of magnets can move relative to each other with the magnetic field from the first pole of the plurality of magnets passing through the one or more coils of wire.

2. The electrical motor or generator according to claim 1, wherein, the plurality of magnets are permanent magnets.

3. The electrical motor or generator according to claim 1, wherein, the plurality of magnets are electromagnets.

4. The electrical motor or generator according to claim 1, wherein, magnetic field bends inside the plurality of magnets.

5. The electrical motor or generator according to claim 1, wherein, the magnet support structure is substantially circular and substantially concentric with the coil support structure.

6. A method of reducing a coil of wire in an electrical motor or generator without reducing power of the electrical motor or generator, the method comprising:

installing one or more magnets in the electrical motor or generator, wherein,

a density of a magnetic field exiting a north magnetic pole-areas is higher than the density of the magnetic field entering a south magnetic pole-areas because a sum of the north magnetic pole-areas is smaller than a sum of a south magnetic pole-areas, and

the density of the magnetic field entering the south magnetic pole-areas is higher than the density of the magnetic field exiting the north magnetic pole-areas because the sum of the south magnetic pole-areas is smaller than the sum of the north magnetic pole-areas;

installing one or more coils of wire in the electrical motor or generator;

installing a coil support structure in the electrical motor or generator; and

rotating a magnet support structure relative to the coil support structure, wherein the coil support structure is stationary relative to the one or more coils of wire, wherein, the magnetic field from the one or more magnets passes through the one or more coils of wire.

7. The method according to claim 6, wherein, the one or more magnets are permanent magnets.

8. The method according to claim 6, wherein, the one or more magnets are electromagnets.

9. The method according to claim 6, wherein, magnetic field bends inside the one or more magnets.

10. The method according to claim 6, wherein, the magnet support structure is substantially circular and concentric with the coil support structure.

11. A method of reducing a coil of wire in an electrical motor or generator without reducing power of the electrical motor or generator, the method comprising:

installing one or more magnets in the electrical motor or generator, wherein,

a density of a magnetic field exiting a north magnetic pole-areas is higher than the density of the magnetic field entering a south magnetic pole-areas because a sum of the north magnetic pole-areas is smaller than a sum of the south magnetic pole-areas, and

the density of the magnetic field entering the south magnetic pole-areas is higher than the density of the magnetic field exiting the north magnetic pole-areas because the sum of the south magnetic pole-areas is smaller than the sum of the north magnetic pole-areas;

installing one or more coils of wire in the electrical motor or generator;

installing a coil support structure in the electrical motor or generator; and

rotating the coil support structure relative to a magnet support structure, wherein the magnet support structure is stationary relative to one or more magnets, wherein, the magnetic field from the one or more magnets passes through the one or more coils of wire.

12. The method according to claim 11, wherein, the one or more magnets are permanent magnets.

13. The method according to claim 11, wherein, the one or more magnets are electromagnets.

14. The method according to claim 11, wherein, magnetic field bends inside the one or more magnets.

15. The method according to claim 11, wherein, the magnet support structure is substantially circular and concentric with the coil support structure.

16. An electrical motor or generator, comprising:

one or more type 1 magnets, wherein, a density of a magnetic field exiting north magnetic pole-areas is higher than a density of a magnetic field entering a south magnetic pole-areas because a sum of the north magnetic pole-areas is smaller than a sum of the south magnetic pole-areas;

one or more type 2 magnets, wherein, the density of the magnetic field entering the south magnetic pole-areas is higher than the density of the magnetic field exiting the north magnetic pole-areas because the sum of the south magnetic pole-areas is smaller than the sum of the north magnetic pole-areas;

one or more coils of wire;

a coil support structure; and

a magnet support structure where the north magnetic pole-areas of the one or more type 1 magnets and the south magnetic pole-areas of the one or more type 2 magnets are near contiguous with the one or more coils of wire such that the magnetic field passes through the one or more coils of wire when the coil support structure moves relative to the magnet support structure.

17. The electrical motor or generator according to claim 16, wherein, the one or more type 1 magnets and one or more type 2 magnets are permanent magnets.

18. The electrical motor or generator according to claim 16, wherein, the one or more type 1 magnets and one or more type 2 magnets are electromagnets.

19. The electrical motor or generator according to claim 16, wherein, magnetic field bends inside the sum of the one or more type 1 magnets and one or more type 2 magnets.

20. The electrical motor or generator according to claim 16, wherein, the magnet support structure is substantially circular and concentric with the coil support structure.