Motor stator
AssigneeFukuta Electric & Machinery Co., Ltd.
InventorsChin-Feng CHANG, Chih-Meng CHU, Zhi-Zheng WU, Chen-Hui CHANG
Life of this patent
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Abstract
A motor stator has an annular stator core, and a plurality of tooth portions spaced on the inner surface of the annular stator core which has a slot formed on each of two sides of each of the tooth portions. Each of the tooth portions has a coil wound and a portion of the coil is located in the two slots of each of the tooth portions. Each of the coils is formed by a metal wire coiled around a bobbin several times from the inner side to the outer side. The bobbin has an inner guide frame and an outer guide frame, both of them have a structure with a bottom plate and a side plate that are arranged vertically so that the coil can be attached to the bobbin to miniaturize the motor stator.
Claims11
A motor stator comprising an annular stator core, a plurality of tooth portions spaced on the inner surface of the annular stator core and protruded toward a center of the annular stator core, each of the tooth portions having a slot formed on each of two sides of the tooth portions, each of the tooth portions having a coil wound around the tooth portion and a portion of the coil located in the two slots of each of the tooth portions, characterized in that:
- a bobbin is provided between each of the coils and each of the tooth portions, each of the coils is formed by winding a metal wire around the bobbin several times, and a thickness of the metal wire is gradually decreased from one end to the other end.
Dependencies are inferred from the claim text.