Electric motor having a high degree of protection against...

Details Electric motor having a high degree of protection against... Electric motor having a high degree of protection against...

2007-05-01

2007-05-01

Mullins, Burton (Department: 2834)

Electrical generator or motor structure

Dynamoelectric

Rotary

C310S06800R, C310S071000, C310S089000, C310S085000

Reexamination Certificate

active

11175866

ABSTRACT:
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 (6c) are located in a base (6b) 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 (6c), and a seal (8, 8a, 8c, 8e, 11, 12, 18, 24) seals at least the connection openings (6c) in the base (6b) of the electronics housing (6) through which the connection elements (7) pass. The seal (8, 8a, 8c, 8e, 11, 12, 18, 24) comprises a plate like partition wall (8) which is arranged on the base (6c) 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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