| 摘要 |
The invention relates to a magnetic device for adjusting the driving torque. According to the invention, the device comprises at least one stator (1) provided with at least one circular row of recesses in which are placed some permanent magnets (4) with radial N-S polarization, in a sequence N-S, N-S or S-N, S-N, with an inclination angle ranging between 18° and 55° relative to the corresponding radii of a shaft (3) on which is mounted at least one rotor (2), the rotor having at least two arms, placed radially symmetric, each arm having recesses in which permanent magnets (4) with N-S radial polarization are placed, in a sequence N-S, N-S or S-N, S-N, in a radial symmetric arrangement in relation to the above-mentioned shaft (3), in circular arcs with inclination angles ranging between 18° and 55° relative to the corresponding radii, both the permanent magnets (4) of the stator and those of the rotor (2) being provided with some magnetic shields (5) on one or several faces of the magnets. |
