| 摘要 |
PURPOSE:To prevent the occurrence of noises in the collision of air current with rotor windings and vibrational sounds in driving by providing an annular wall surrounding the rotor windings on an air current path in a motor to prevent the air current from the direct collision with the rotor windings. CONSTITUTION:Air current discharged from an impeller 11, after passing through an air guide 16 as indicated by the arrow, flows into a path 23 in a motor bracket B17 and approaches rotor windings 18. However, the air current is blocked by an annular wall 22 provided to surround the rotor windings 18 and prevented from reaching the rotor windings 18. Thus, sounds produced by the collision of air current with the rotor windings are eliminated and a motor blower with low noise level is provided. Also, since the annular wall 22 is provided to stretched against a stator 21, a motor bracket A10 does not produce vibrational sounds in the motor drive and the noise level is further reduced together with noised reduced by one due to the air current.
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