| 摘要 |
The present invention relates to an electric motor having a high degree of protection against the ingress of foreign particles and moisture, in particular an electronically commutated external rotor DC motor, having a stator ( 1 ), having a rotor ( 2 ) and having an electronics housing ( 6 ) which extends transversely with respect to the motor shaft ( 3 ) and accommodates in its interior ( 4 ) a printed circuit board ( 5 ) having open-loop and closed-loop control electronics and commutation electronics. In this case, connection openings ( 6 c) are located in a base ( 6 b) of the electronics housing ( 6 ), connection elements ( 7 ), which connect the stator ( 1 ) and the printed circuit board ( 5 ) to one another, passing through the connection openings ( 6 c), and a seal ( 8, 8 a , 8 c , 8 e , 11, 12, 18, 24 ) seals at least the connection openings ( 6 c) in the base ( 6 b) of the electronics housing ( 6 ) through which the connection elements ( 7 ) pass. The seal ( 8, 8 a , 8 c , 8 e , 11, 12, 18, 24 ) comprises a plate like partition wall ( 8 ) which is arranged on the base ( 6 c) of the electronics housing ( 6 ) and serves the purpose, on the one hand, of physically sealing the electronics housing ( 6 ) and, on the other hand, of sealing the gaps in the electronics housing ( 6 ).
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