CUP-TYPE STATOR YOKE OF STEPPING MOTOR

PROBLEM TO BE SOLVED: To provide a cup-type stator yoke of a claw pole-type stepping motor, in which length of a pole tooth can freely be set by constituting the stator yoke by split yokes, concentricity of an outer periphery and an inner periphery in the combined and coupled stator yoke can be impr...

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Bibliographische Detailangaben
Hauptverfasser: NAKAMURA MANABU, FURUSAKI HIROYUKI
Format: Patent
Sprache:eng
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Zusammenfassung:PROBLEM TO BE SOLVED: To provide a cup-type stator yoke of a claw pole-type stepping motor, in which length of a pole tooth can freely be set by constituting the stator yoke by split yokes, concentricity of an outer periphery and an inner periphery in the combined and coupled stator yoke can be improved and the yokes can be arranged at equal intervals.SOLUTION: In a cup-type stator yoke 1 of a stepping motor, a plurality of split yokes 2 having cup-like cylinders 3 and pole teeth 5 connected to the cup-like cylinders 3 are arranged in a circumferential direction to form the yoke in an annular shape. A clearance 6 is formed between the adjacent split yokes 2. The clearance 6 at a bottom face of the cup-type stator yoke 1 of the stepping motor, which is constituted in the annular shape, is filled with synthetic resin 8. An annular portion 9 obtained by coupling the whole circumference of the bottom faces by the synthetic resin 8 is formed, and integrated with the synthetic resin 8.