Magnetic suspension planar motor with structure of superconductor excitation

摘要

A magnetic suspension planar motor comprises a structure of superconductor excitation. A primary base plate is in a shape of board. Armature windings are fixed on an air gap side of the primary base plate. A secondary base plate in a secondary structure is evenly divided into 2 h*2 h magnet cells. 2 h2 superconducting magnets are respectively fixed in the magnet cells on the secondary base plate, which resembles a checkerboard pattern. The superconducting magnets are adjacent to each other, neither in a horizontal direction nor in a vertical direction. The superconducting magnets are magnetized parallelly, and magnetization directions of the superconducting magnets are perpendicular to a surface on an air gap side of the secondary base plate. The superconducting magnets in a same row or column have same magnetization directions, and the superconducting magnets in adjacent rows columns have contrary magnetization directions. A cooling container shields all of the superconducting magnets.

主权项

1. A magnetic suspension planar motor comprising: a primary structure, and a secondary structure; wherein an air gap is provided between said primary structure and said secondary structure; said primary structure comprises a primary base plate and armature windings; said primary base plate is in a shape of board; said armature windings are fixed on an air gap side of said primary base plate, wherein said air gap side is defined as a side adjacent to said air gap; said secondary structure comprises a secondary base plate (1), a cooling container, and 2 h2 superconducting magnets (2); said secondary base plate (1) is evenly divided into 2 h*2 h magnet cells, wherein h is a positive number; side lengths of said magnet cells are equal to a polar distance τp of a magnet array; said 2 h2 superconducting magnets (2) are respectively fixed in said magnet cells on said secondary base plate (1); said superconducting magnets (2) are not directly horizontally adjacent and not directly vertically adjacent to each other, neither in a horizontal direction nor in a vertical direction; said superconducting magnets (2) are magnetized parallelly, magnetization directions of said superconducting magnets (2) are perpendicular to a surface on an air gap side of said secondary base plate (1); said superconducting magnets (2) in a same row or a same column have same magnetization directions; said superconducting magnets (2) in adjacent rows or adjacent columns have contrary magnetization directions; and said cooling container shields all of said superconducting magnets (2);
wherein said primary base plate is made of nonmagnetic materials; wherein said primary base plate comprises an electromagnetic shielding plate on an upper side thereof, wherein said upper side refers to a side opposite to said air gap side; wherein said primary structure comprises a liquid cooling structure, and cooling liquid pipelines are arranged on said primary base plate; wherein said primary structure further comprises a deflection controlling winding (3); said deflection controlling winding (3) comprises a deflection controlling winding in an X direction (3) and a deflection controlling winding in a Y direction (3); said deflection controlling winding in said X direction (3) comprises 2 m coils, which are evenly divided into two groups; said two groups of said coils are fixed on said primary base plate, and are arranged at two sides of said armature windings symmetrically in said X direction; said deflection controlling winding in said Y direction (3) comprises 2 m coils, which are evenly divided into two groups; said two groups of said coils are fixed on said primary base plate, and are arranged at two sides of said armature windings symmetrically in said Y direction; and m is a natural number more than 1; wherein said primary structure in said magnetic suspension planar motor is used as a mover.