A magnet arrangement for creating a magnetic field. The magnet arrangement includes a first magnet having a first surface defining a first pole and a second surface defining a second pole opposite the first pole, and a second magnet having a third surface defining a third pole and a fourth surface d
A magnet arrangement for creating a magnetic field. The magnet arrangement includes a first magnet having a first surface defining a first pole and a second surface defining a second pole opposite the first pole, and a second magnet having a third surface defining a third pole and a fourth surface defining a fourth pole opposite the third pole. The second surface has a higher magnetic flux density than the first surface. The third surface has a higher magnetic flux density than the fourth surface. The second magnet is spaced from the first magnet to define a first gap between the second surface and the third surface. Magnetic field lines of the magnetic field run from the first surface to the second surface, from the second surface to the third surface through the first gap, and from the third surface to the fourth surface.
대표청구항▼
1. A magnet arrangement, comprising: a first magnet;a second magnet spaced from the first magnet to define a first gap between the first magnet and the second magnet;wherein the first magnet and the second magnet create a magnetic field including magnetic field lines that converge in the first magne
1. A magnet arrangement, comprising: a first magnet;a second magnet spaced from the first magnet to define a first gap between the first magnet and the second magnet;wherein the first magnet and the second magnet create a magnetic field including magnetic field lines that converge in the first magnet, run through the gap between the first and second magnets, and diverge in the second magnet; anda magnetocaloric material disposed in the first gap, wherein one of the magnetocaloric material and the first and second magnets is configured to move relative to the other one of the magnetocaloric material and the first and second magnets. 2. The magnet arrangement of claim 1, further comprising: a third magnet; anda fourth magnet spaced from the third magnet to define a second gap between the third magnet and the fourth magnet;wherein the third magnet and the fourth magnet contribute to the magnetic field including magnetic field lines that run from the second magnet to the third magnet, converge in the third magnet, and diverge in the fourth magnet. 3. The magnet arrangement of claim 2, further comprising another magnetocaloric material disposed in the second gap. 4. The magnet arrangement of claim 2, wherein the first magnet, the second magnet, the third magnet and the fourth magnet have a substantially arcuate shape and are arranged having a common arc center. 5. The magnet arrangement of claim 4, wherein the first and second magnets are arranged substantially opposite the third and fourth magnets relative to the arc center. 6. The magnet arrangement of claim 1, wherein the surface areas of the poles of the first magnet decrease in the direction of the magnetic field lines and the surface areas of the poles of the second magnet increase in the direction of the magnetic field lines. 7. The magnet arrangement of claim 1, wherein the first magnet includes a first surface defining a first south pole and a second surface defining a first north pole, the first surface having a first surface area, the second surface having a second surface area, wherein the first surface area is greater than the second surface area. 8. The magnet arrangement of claim 7, wherein the second magnet includes a third surface defining a second south pole and a fourth surface defining a second north pole, the third surface having a third surface area, the fourth surface having a fourth surface area, wherein the third surface area is less than the fourth surface area. 9. The magnet arrangement of claim 8, wherein the second surface is spaced from the first surface, and wherein a magnetic flux increases in density from the first surface to the second surface. 10. The magnet arrangement of claim 9, wherein the fourth surface is spaced from the third surface, and wherein a magnetic flux decreases in density from the third surface to the fourth surface. 11. The magnet arrangement of claim 8, wherein the first surface, the second surface, the third surface and the fourth surface are substantially arcuate. 12. The magnet arrangement of claim 11, wherein the first surface, the second surface, the third surface and the fourth surface share a common arc center. 13. The magnet arrangement of claim 12, wherein the first and second surfaces are arranged substantially opposite the third and fourth surfaces relative to the arc center. 14. The magnet arrangement of claim 7, wherein the first surface and the second surface are substantially arcuate. 15. The magnet arrangement of claim 1, wherein the first magnet includes a substantially arcuate shape in a first cross section taken along a first plane and includes a substantially trapezoidal shape in a second cross section taken along a second plane substantially perpendicular to the first plane. 16. The magnet arrangement of claim 1, wherein the first and second magnets have a substantially arcuate shape and are arranged having a common arc center axis, wherein one of the magnetocaloric material and the first and second magnets is configured to rotate about the arc center axis relative to the other one of the magnetocaloric material and the first and second magnets. 17. The magnet arrangement of claim 16, wherein the substantially arcuate shape is disposed in a first cross section of the first magnet taken along a first plane and wherein the first magnet has a substantially trapezoidal shape in a second cross section taken along a second plane substantially perpendicular to the first plane. 18. The magnet arrangement of claim 17, wherein the first plane is perpendicular to the arc center axis and the second plane is parallel to the arc center axis. 19. The magnet arrangement of claim 1, wherein the first magnet is formed of a plurality of magnet segments, wherein each of the magnet segments includes parallel magnetic field lines, and wherein the first magnet includes non-parallel magnetic field lines.
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