APPARATUS AND METHOD FOR PREVENTING LOSS OF PERMANENT MAGNETS REPULSION

摘要

The present invention relates to a device for preventing a permanent magnet from losing repulsion and a method for preventing a permanent magnet from losing repulsion. The device for preventing a permanent magnet from losing repulsion are provided with a fixed unit composed of a nonmagnetic material and nonmagnetic material walls (2-1) mounted on the front and rear sides of permanent magnets (2, 3) mounted along the circumference of a rotational unit (4); has magnetic plates (P, P-1) inserted and mounted therein; and is provided to prevent the permanent magnet from losing repulsion by removing the obstructive factors against the rolling approach of the magnets (2, 3) by guiding and absorbing the side repulsion of the magnets (2, 3), and to minimize the loss of repulsion of the permanent magnets by cooling heat generated from the permanent magnets (2, 3) by circulating cooling water through a circulation path (9) of the fixed unit (1) and through a rotary shaft (S) of the rotational unit (4).