Electrical generator or motor structure – Dynamoelectric – Rotary
Reexamination Certificate
2006-05-02
2006-05-02
Tamai, Karl (Department: 2834)
Electrical generator or motor structure
Dynamoelectric
Rotary
C310S043000, C310S239000
Reexamination Certificate
active
07038337
ABSTRACT:
A permanent magnet DC motor10having electro-magnetic interference (EMI) suppression includes a metal motor housing12and a brush card assembly34. The brush card assembly includes brushes20and leads24constructed and arranged to be coupled with a source of power to power the motor. A brush card housing14has a first portion18housing the brushes and a second portion22, integral with the first portion, and housing the leads. A printed circuit board26is mounted with respect to the second portion of the housing and carries at least one electro-magnetic interference (EMI) suppression component30constructed and arranged to suppress EMI generated by the motor. The leads are electrically connected to the printed circuit board so that current can be provided through the printed circuit board to the brushes. A contact member40is electrically connected between the printed circuit board and the metal motor housing so that the at least one EMI suppression component couples the brushes to the metal motor housing thereby causing the metal motor housing to become an AC ground and EMI shield.
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PCT International Search Report—mailed Jun. 8, 2004.
Bent Robert F.
Thomson Kenneth Scott
Siemens VDO Automotive Corporation
Tamai Karl
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