Eddy current resistance generating device

Abstract

An eddy current resistance generating device includes a magnet base, a plurality of magnets, a conductive member and a friction set. The magnet base has two inner walls. The magnets are disposed on the two inner walls of the magnet base, wherein the magnets on the two inner walls are face to each other. The conductive member is located between the magnets on the two inner walls for generating an eddy current resistance while the magnets are moved relative to the conductive member. The friction set is disposed between each of the magnets and the conductive member, wherein the friction set includes at least one friction matrix.

What is claimed is: 
     
         1 . An eddy current resistance generating device, comprising:
 a magnet base having two inner walls;   a plurality of magnets disposed on the two inner walls of the magnet base, wherein the magnets on the two inner walls are facing to each other;   a conductive member located between the magnets on the two inner walls for generating an eddy current resistance while the magnets are moved relative to the conductive member; and   a friction preventing set disposed between each of the magnets and the conductive member, wherein the friction preventing set comprises at least one friction preventing matrix, and each of the at least one friction preventing matrix is coating layer.   
     
     
         2 . The eddy current resistance generating device of  claim 1 , wherein the at least one friction preventing matrix is covered on the magnets on at least one of the two inner walls. 
     
     
         3 . The eddy current resistance generating device of  claim 2 , wherein a number of the at least one friction preventing matrix is two, wherein each of the two friction preventing matrices is covered on the magnets on each of the two inner walls. 
     
     
         4 . The eddy current resistance generating device of  claim 2 , wherein the friction preventing set further comprises at least one pressing plate for positioning the friction preventing matrix on the at least one of the two inner walls. 
     
     
         5 . The eddy current resistance generating device of  claim 1 , further comprising:
 two interval members for positioning the magnets on the two inner walls, wherein each of the two interval members has a plurality of positioning concave structures, and each of the magnets is disposed in each of the positioning concave structures.   
     
     
         6 . The eddy current resistance generating device of  claim 1 , further comprising:
 two magnet positioning members for positioning the magnets on the two inner walls, wherein each of the two magnet positioning members has a plurality of positioning holes, and each of the magnets is disposed in each of the positioning holes.   
     
     
         7 . The eddy current resistance generating device of  claim 6 , wherein the two magnet positioning members are formed by plastic injection molding. 
     
     
         8 . The eddy current resistance generating device of  claim 1 , wherein a number of the at least one friction preventing matrix is a plurality, each of the plurality of friction preventing matrices is covered on each of the magnets. 
     
     
         9 . The eddy current resistance generating device of  claim 1 , wherein a number of the at least one friction preventing matrix is a plurality, each of the plurality of friction preventing matrices is coated on an outer surface of each of the magnets, wherein the outer surface of each of the magnets is face to the conductive member. 
     
     
         10 . The eddy current resistance generating device of  claim 1 , wherein the at least one friction preventing matrix is covered on the conductive member. 
     
     
         11 . The eddy current resistance generating device of  claim 1 , wherein a number of the at least one friction preventing matrix is two, the two friction preventing matrices are coated on two side surfaces of each of the conductive member, and the two side surfaces are face to the magnets on the two inner walls, respectively. 
     
     
         12 . The eddy current resistance generating device of  claim 1 , wherein the magnet base is integrally formed by iron material.