Patent ID: 6100612
Filing Date: 2000-08-08
Classification: H02K

Abstract:
A stepping motor characterized by comprising a first annular stator core having an annular bobbin with a first exciting coil being wound around the outer periphery of a hollow cylindrical winding section, a second annular stator core having an annular bobbin with a second exciting coil wound around the outer periphery of a hollow cylindrical winding section, a rotor disposed within the winding section of each of said annular bobbins as mutually associated inside a concentric lamination structure of these first and second stator cores and having a rotation shaft rotatable by the magnetic action of said first and second exciting coils, a first current-carrying terminal secured to the annular bobbin of one-side annular stator core of those of said respective annular stator cores in a way such that it does not obstruct the outer periphery of said winding section and having a first connection section conductively secured to a termination end of said exciting coil of said one-side stator core and a second connection section, a second current-carrying terminal secured to the other-side annular stator core of those of said respective annular stator cores so that it does not obstruct the outer periphery of said winding section and having a first connection section for conductive fixation of the terminal end of said exciting coil of said the other-side annular stator core and a second connection section as electrically connected to an external electrical device placed in the axial direction of said rotor, and a third current-carrying terminal secured to the annular bobbin of said other-side stator core along with said second current-carrying terminal so as not to obstruct the outer periphery of said winding section and having a first connection section electrically connected to the second connection section of said first current-carrying terminal and a second connection section electrically connected to said external device.