Magnetic materials polarized at an oblique angle
An oblique angle polarized magnet includes a rectangular magnetized permanent magnet having a grain direction, an attraction surface, and a magnetic primary field line that is orthogonal to the grain direction but non-orthogonal to the attraction surface. The oblique angle polarized magnet may be used in a magnetically positioned apparatus, such as a tablet computing device cover operable as a stand for the tablet computing device. The magnetically positioned apparatus may be configured to assume a position where first and second magnets are oriented in a non-parallel orientation such that the first and second surfaces of the magnets oriented at an acute angle with respect to each other. The magnets may facilitate the position.
1. A magnetically positioned apparatus utilizing magnets to maintain a configuration, comprising:
a first magnet, comprising:
a first surface; and
a first magnetic material having a first grain direction that defines a non-right, non-zero angle with respect to the first surface; and
a second magnet, comprising a second magnetic material having a second surface;
wherein the magnetically positioned apparatus is configured to assume a position where the first and second magnets are oriented in a non-parallel orientation such that the first and second surfaces are oriented at an acute angle with respect to each other; and the first and second magnets facilitate the position.
2. The magnetically positioned apparatus of claim 1 , wherein the second magnetic material has a second grain direction that is orthogonal to the second surface.
3. The magnetically positioned apparatus of claim 2 , wherein:
the first magnet defines a primary field line; and
the first magnet emits magnetic flux along the primary field line and at an oblique angle to the first surface.
4. The magnetically positioned apparatus of claim 3 , wherein the primary field line is oriented at approximately a 90 degree angle from the second surface when the magnetically positioned apparatus is in the position.
5. The magnetically positioned apparatus of claim 1 , wherein the second magnetic material has a second grain direction defining a non-right, non-zero angle with respect to the second surface.
6. The magnetically positioned apparatus of claim 1 , wherein the magnetically positioned apparatus comprises a cover for an electronic device.
7. The magnetically positioned apparatus of claim 6 , wherein the cover is coupleable to the electronic device.
8. The magnetically positioned apparatus of claim 7 , wherein the cover further comprises
a first housing portion; and
a second housing portion;
wherein the first magnet is attached to the first housing portion; the second magnet is attached to the second housing portion; and the first and second housing portions are oriented in a non-parallel orientation when the cover is in the position.
9. The magnetically positioned apparatus of claim 8 , wherein the cover is operable as a stand for the electronic device when in the position.
10. The magnetically positioned apparatus of claim 8 , wherein:
the cover further comprises a third housing portion flexibly coupled to the second housing portion;
the first housing portion is flexibly coupled to the second housing portion; and
the first housing portion, the second housing portion, and the third housing portion form a triangle when the cover is in the position.
11. The magnetically positioned apparatus of claim 8 , wherein the first magnet is embedded in the first housing portion.
12. A permanent magnet, comprising:
magnetic material having:
a set of grains generally extending in a direction; and
an attraction surface defined by a substantially flat exterior surface of the permanent magnet; wherein
a magnetic primary field line extends, in the direction, through the magnetic material; and
the direction is offset from the attraction surface by a non-right, non-zero angle.
13. The permanent magnet of claim 12 , wherein the magnetic material is a non-cubic parallelepiped.
14. The permanent magnet of claim 12 , wherein the magnetic material includes at least one of neodymium, iron, or boron.
15. The permanent magnet of claim 12 , wherein the magnetic material is non-square.
16. The permanent magnet of claim 12 , wherein the magnetic material is enclosed in a housing.
17. A magnetically positioned apparatus utilizing magnets to maintain a configuration, comprising:
a cover for a tablet computing device, comprising:
a first cover portion;
a second cover portion; and
a joint between the first cover portion and second cover portion;
a first magnet positioned in the first cover portion and defining a surface; and
a second magnet, positioned in the second cover portion; wherein
the cover is configured to bend at the joint; and
a magnetic field line between the first magnet and second magnet extends at a non-right angle from the surface of the first magnet.
18. The magnetically positioned apparatus of claim 17 , wherein a grain direction of the first magnet defines a non-right angle with respect to the surface of the first magnet.
19. The magnetically positioned apparatus of claim 17 , wherein:
the joint is a first joint;
the cover further comprises:
a third cover portion; and
a second joint connecting the second cover portion and third cover portion; and
the first joint connects the first cover portion and third cover portion.
20. The magnetically positioned apparatus of claim 19 , wherein the third cover portion is devoid of magnets.
21. The magnetically positioned apparatus of claim 19 , wherein the second magnet defines a grain direction orthogonal to a surface of the second magnet.
22. The magnetically positioned apparatus of claim 17 , wherein the cover is operable to couple to the tablet computing device.