Electrical generator or motor structure – Dynamoelectric – Rotary
Reexamination Certificate
2007-12-25
2007-12-25
Mullins, Burton (Department: 2834)
Electrical generator or motor structure
Dynamoelectric
Rotary
C310S06800R
Reexamination Certificate
active
11173002
ABSTRACT:
An electric power steering drive system provided with a motor with its torque pulsation reduced, and a controller characterized by excellent manufacturability.The stator core of a motor is composed of an annular back core and a plurality of teeth created separately from the back core and secured on the inner periphery of the back core. An 8-pole/9-slot, 10-pole/9-slot or 10-pole/12-slot relationship is found between the number of the magnets of a rotor (number of poles) and the number of slots. The diameter of the stator coil is 1.0 mm or more. A motor controller comprises a power module, a conductor module and a control module. The terminal of the power module and the bus bar of the conductor module are connected by welding, whereas the terminal of the power module and terminal of the control module are connected by soldering.
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European Search Report dated Aug. 29, 2005 (Six Pages).
Ichige Hiroshi
Kobayashi Ryoichi
Moriyama Norio
Sasaki Shoji
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