| 摘要 |
PURPOSE: A stepping motor structure is provided to simplify the structure of a first and a second teeth type yoke by removing an embossing protrusion and a protrusion hole formed on a smoothing unit of the yoke. CONSTITUTION: A stepping motor structure comprises a bracket assembly, a rotor assembly, a first and a second bobbins(125a,125a'), a stator(120), and a cover assembly. The bracket assembly couples a first housing(113a) to a bracket. The rotor assembly is coupled to the bracket assembly and includes a magnet and a shaft. The first and second bobbins are arranged opposite to the magnet. The stator includes a first and a second coils(121a,121a'), and a first and a second teeth type yokes(123a,123a'). The cover assembly includes a second housing(113a') corresponding to the first housing at one side of the stator. At least one or more embossing unit is formed at the inside of the first and the second bobbins of the stator.
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