Magnetic levitation sliding structure
View Patent ↗A magnetic levitation sliding structure including a first slide member, and a first magnetic portion which is disposed in the first slide member to extend along the lengthwise direction of the first slide member and has magnetic poles arranged perpendicular to the lengthwise direction of the first slide member with the lengthwise direction of the first slide member being an extending direction. The structure further includes a second slide member slidingly engaged with the first slide member, and a second magnetic portion which is disposed in the second slide member to extend parallel to the first magnetic portion and has magnetic poles with opposite magnetic polarity to those of the first magnetic portion in order for the first and second magnetic portions to repel each other.
1. A magnetic levitation sliding structure comprising:
a first slide member;
a first magnetic portion which is disposed in the first slide member to extend along the lengthwise direction of the first slide member and has magnetic poles arranged perpendicular to the lengthwise direction of the first slide member, wherein the lengthwise direction of the first slide member is an extending direction;
a second slide member slidingly engaged with the first slide member; and
a second magnetic portion which is disposed in the second slide member to extend substantially parallel to the first magnetic portion and has magnetic poles with opposite magnetic polarity to those of the first magnetic portion in order for the first and second magnetic portions to repel each other, wherein the second magnetic portion is formed to have a shape corresponding to that of a side surface of the first magnetic portion so as to correspondingly enclose at least a portion of the side surface of the first magnetic portion that is partially disposed in the first slide member, thereby being slidingly engaged with the first magnetic portion, and wherein a cross-section of the first magnetic portion has a substantially circular shape, and wherein an internal surface of the second magnetic portion has a substantially semi-cylinder shape corresponding to the side surface of the first magnetic portion.
2. The magnetic levitation sliding structure of claim 1 , wherein a radius of curvature of the side surface of the first magnetic portion is smaller than that of the internal surface of the second magnetic portion.
3. The magnetic levitation sliding structure of claim 1 , further comprising a rail for slidingly engaging the first and second slide members.
4. The magnetic levitation sliding structure of claim 3 , wherein the rail comprises:
a protrusion protruding from the first slide member to the second slide member; and
a groove grooved in the second slide member along the extending direction in order for the protrusion to slide in the groove.
5. The magnetic levitation sliding structure of claim 1 , wherein a magnetic force line shield is correspondingly disposed on one or more portions of the side surface of the first magnetic portion.
6. The magnetic levitation sliding structure of claim 1 , wherein a magnetic force line shield is correspondingly disposed in one or more portions of a side surface of the second magnetic portion.
7. The magnetic levitation sliding structure of claim 1 , wherein a guide protruding toward the second slide member and extending in the sliding direction of the first slide member is disposed at a side surface of the first slide member, and the first magnet portion is provided to the guide.
8. The magnetic levitation sliding structure of claim 7 , wherein the side surface of the first magnet portion is disposed in the guide, and the other side surface of the first magnet portion is exposed to an external surface of the guide to extend along the guide.
9. The magnetic levitation sliding structure of claim 8 ,
wherein accommodating portions are formed at both sides of the second slide member, and
wherein a side surface of the second magnetic portion is correspondingly disposed in the accommodating portion, and the other surface of the second magnetic portion is exposed to the guide.
10. The magnetic levitation sliding structure of claim 9 , wherein the length of the accommodating portion is larger than that of the guide.
11. The magnetic levitation sliding structure of claim 1 , wherein the first magnetic portion includes a plurality of magnets.
12. The magnetic levitation sliding structure of claim 1 , wherein the second magnetic portion includes a plurality of magnets.
13. The magnetic levitation sliding structure of claim 1 , wherein the first magnetic portion faces outwardly of the first slide member and the second magnetic portion faces inwardly of the second slide member.
14. The magnetic levitation sliding structure of claim 1 , wherein the first magnetic portion faces inwardly of the first slide member and the second magnetic portion faces outwardly of the second slide member.
15. The magnetic levitation sliding structure of claim 4 , wherein the protrusion protrudes outwardly from the first slide member and the groove faces inwardly of the second slide member.
16. The magnetic levitation sliding structure of claim 1 , wherein the first and second magnetic portions are employed in respective portions of a portable electronic device.