| 摘要 |
A mini-fan has a fan wheel ( 64 ) equipped with fan blades ( 80 ), and an electrical drive motor ( 61 ) for driving that fan wheel. The drive motor ( 61 ) has a permanent-magnet external rotor ( 62 ) and an internal stator ( 90 ), which latter is implemented as a claw pole stator having pole pieces ( 88, 110 ) whose claw poles ( 84, 86 ) engage into one another. Arranged between the pole pieces is a coil former ( 57 ) that comprises a central portion ( 54 ) to which are joined two side parts ( 50, 56 ), located opposite one another, one of which is implemented as a carrier for electrical elements ( 96, 98 ) of the motor ( 61 ).
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