RADIAL MAGNETIC CIRCUIT ASSEMBLY DEVICE AND ASSEMBLING METHOD
FIG4 depicts a schematic structural diagram of assembling each tile-shaped magnet with a magnetic central column in a radial magnetic circuit assembly method provided by an embodiment of the present invention
As shown in FIG4, it needs be further noted that, a radial magnetizing needs to be performed on each tile-shaped magnet 30 before assembly of the tile-shaped magnet 30, the arrows indicate the directions of the magnetic fields of each tile-shaped magnet 30, when each tile-shaped magnet 30 is mounted on the limit step 43, the tile-shaped magnet 30 may also connected with the small-diameter section 42 in magnetically attractive manner.
schematic structural diagram
42
section
30
tile-shaped magnet tile-shaped magnets
43
limit step
40
magnetic central column
['1. A radial magnetic circuit assembly device configured to mount an upper axial magnetic sheet and a lower axial magnetic sheet respectively on an upper axial side surface and a lower axial side surface of each of a plurality of tile-shaped magnets,  characterized in that , the radial magnetic circuit assembly device comprises: a magnetic central column, and a lower lantern ring and an upper lantern ring sleeved on the magnetic central column, wherein the magnetic central column comprises a large-diameter section and a small-diameter section connected in sequence, a joint of the large-diameter section and the small-diameter section is provided with a limit step on which each tile-shaped magnet is annularly and uniformly arranged, the lower lantern ring is sleeved on the tile-shaped magnet in a direction from the large-diameter section towards the small-diameter section and is configured to limit a radial displacement of each tile-shaped magnet, and the upper lantern ring is sleeved on the tile-shaped magnet in a direction from the small-diameter section towards the large-diameter section to press the upper axial magnetic sheet and the lower axial magnetic sheet against the upper axial side surface and the lower axial side surface of each tile-shaped magnet respectively.']