BOND MAGNET, BOND MAGNET PIECE, AND MANUFACTURING METHOD OF BOND MAGNET

摘要

PROBLEM TO BE SOLVED: To improve a magnetic flux density of a bond magnet.SOLUTION: The bond magnet comprises: a first bond magnet piece 10A including a first non-action surface and a spatially crossing first action surface and formed by orienting a first magnetic force line group 21 that is bent internally so as to be directed from the first non-action surface to the first action surface; and a second bond magnet piece 10B including a second non-action surface and a spatially crossing second action surface and formed by orienting a second magnetic force line group 22 which is curved internally so as to be directed from the second action surface to the second non-action surface. An area of the first non-action surface is wider than that of the first action surface and the magnetic flux density of the first action surface is higher than that of the first non-action surface. An area of the second non-action surface is wider than that of the second action surface, and the magnetic flux density of the second action surface is higher than that of the second non-action surface. A magnetic pole of the first non-action surface and a magnetic pole of the second non-action surface are different polarities. The first non-action surface and the second non-action surface are connected, such that the second magnetic force line group 22 and the first magnetic force line group 21 are continued.SELECTED DRAWING: Figure 3