Abstract: A motor structure includes a stator and a rotor. The stator includes a coil assembly which includes a ring-shaped slot having an inner periphery on its inner side and an outer periphery on its outer side away from the inner periphery, a plurality of first teeth mounted around the inner periphery of the ring-shaped slot, and a plurality of second teeth mounted around the outer periphery of the ring-shaped slot; wherein each of the first teeth is arranged to partly fall behind or exceed the corresponding one of the second teeth, and a coil wound in the ring-shaped slot. The rotor includes a circular magnet located above the coil.

Abstract: A motor structure is disclosed. The motor structure includes a stator and a rotor. Among these, the stator further includes a coil seat defined by a bottom plate, a plurality of first teeth and a plurality of second teeth. A coil is formed in the coil seat. The first teeth formed around inner periphery of the bottom plate and have a first extending portion extending so as to constitute a reversed L shape. The second teeth formed around outer periphery of the bottom plate and have a second extending portion so as to constitute a reversed L shape. The rotor, coupled to the stator, further have a circular magnet formed above the coil seat, the first extending portion and the second extending portion. Each of the first and second extending portions further includes a chamfer, a fillet, a clearance, a fold and different dimension.

Abstract: A motor structure including a stator having a coil assembly, and a rotor having a circular magnet located above the coil. The stator includes a coil assembly having a ring-shaped slot, a plurality of first teeth, a plurality of second teeth, and a coil. The ring-shaped slot has an inner periphery on its inner side and an outer periphery on its outer side away from the inner periphery. The plurality of first teeth is mounted around the inner periphery of the ring-shaped slot. The plurality of second teeth is mounted around the outer periphery of the ring-shaped slot. The coil is wound in the ring-shaped slot.

Abstract: A motor structure includes a stator and a rotor. The stator includes a coil assembly which includes a ring-shaped slot having an inner periphery on its inner side and an outer periphery on its outer side away from the inner periphery, a plurality of first teeth mounted around the inner periphery of the ring-shaped slot, and a plurality of second teeth mounted around the outer periphery of the ring-shaped slot; wherein each of the first teeth is arranged to partly fall behind or exceed the corresponding one of the second teeth, and a coil wound in the ring-shaped slot. The rotor includes a circular magnet located above the coil.

Abstract: A miniature motor structure includes a stator, a circular magnet and a shift. The stator further includes a first coil seat, a coil and a second coil seat. The first coil seat includes a first bottom plate having a first central opening, a plurality of first outer teeth and a plurality of first inner teeth. The coil is formed in the first coil seat. The second coil seat includes a second bottom plate having a second central opening, a plurality of second outer teeth and a plurality of second inner teeth. Each of the second outer teeth is interposed between the adjacent first outer teeth and each of the second inner teeth is interposed between the adjacent first inner teeth. The circular magnet surrounds the stator.

Abstract: A motor structure is disclosed. The motor structure comprises a stator and a rotor. Among these, the stator further comprises a coil seat defined by a bottom plate, a plurality of first teeth and a plurality of second teeth. A coil is formed in the coil seat. The first teeth formed around inner periphery of the bottom plate and have a first extending portion extending so as to constitute a reversed L shape. The second teeth formed around outer periphery of the bottom plate and have a second extending portion so as to constitute a reversed L shape. The rotor, coupled to the stator, further have a circular magnet formed above the coil seat, the first extending portion and the second extending portion. Each of the first and second extending portions further comprises a chamfer, a fillet, a clearance, a fold and different dimension.

Abstract: A rotor balance structure, which comprises a vane shell, a rotor case installed on the inner side of the vane shell, and a magnet installed on the inner side of the rotor case. The rotor is coupled with a stator, which comprises a coil and a magnetic conduction silicon steel set. When the coil on the stator is provided with an electrical current and generates a magnetic field, the magnet is attracted through the magnetic conduction silicon steel set to rotate the rotor balance structure. The feature of the rotor balance structure of the present invention is in that a magnetically conductive plate is included and installed under the inner side of the vane shell top. The magnetically conductive plate does not have any magnetic conduction with the rotor case but has an attractive magnetic interaction with the coil so that the rotational balance of the rotor balance structure can be improved.