Electrical generator or motor structure – Dynamoelectric – Rotary
Reexamination Certificate
2007-07-13
2010-06-22
Mullins, Burton (Department: 2834)
Electrical generator or motor structure
Dynamoelectric
Rotary
C310S06700R, C310SDIG006, C310S064000
Reexamination Certificate
active
07741741
ABSTRACT:
A drive apparatus for a washing machine includes an electric motor, a drive shaft connected to the electric motor for rotary drive, a fan for cooling the electric motor and electronics for controlling operation of the electric motor. In order to achieve a compact construction, the electric motor and the electronics are integrated in a common unit, such as a motor housing. In order to protect the electronics and at the same time ensure that the electronics are sufficiently cooled, the common unit has a dividing wall, with the electric motor and a printed circuit board of the electronics disposed on opposite sides of the dividing wall. The dividing wall has at least one aperture. The electronics include power components protruding at least partially through the aperture and being in contact with the dividing wall and/or with a cooling air stream generated by the fan.
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Mehrer Thomas
Möller Alexander
Weinmann Martin
Dielh AKO Stiftung & Co. KG
Greenberg Laurence A.
Locher Ralph E.
Mullins Burton
Stemer Werner H.
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